[{"data":1,"prerenderedAt":3100},["ShallowReactive",2],{"content:\u002F2024\u002F06\u002F30\u002Fengineering-drawing-notes":3,"surround:\u002F2024\u002F06\u002F30\u002Fengineering-drawing-notes":3094},{"id":4,"title":5,"body":6,"categories":3005,"date":3007,"description":16,"draft":3008,"extension":3009,"image":3010,"meta":3011,"navigation":3013,"path":3014,"permalink":3014,"published":3015,"readingTime":3016,"recommend":3015,"references":3015,"seo":3021,"sitemap":3022,"stem":3089,"tags":3090,"type":3092,"updated":3007,"__hash__":3093},"content\u002Fposts\u002F2024\u002Fengineering-drawing-notes.md","工程图学期末复习",{"type":7,"value":8,"toc":2968},"minimark",[9,13,17,20,40,44,48,52,55,81,84,88,96,110,117,123,148,153,156,159,162,323,326,498,501,505,510,614,617,626,630,635,639,645,648,661,665,668,672,780,860,894,928,963,996,1122,1260,1292,1624,1729,1852,2149,2152,2156,2161,2165,2187,2280,2284,2287,2290,2294,2297,2302,2305,2308,2313,2316,2439,2445,2451,2462,2468,2471,2474,2485,2490,2501,2508,2511,2548,2551,2762,2766,2804,2808,2811,2816,2822],[10,11,12],"h1",{"id":12},"前言",[14,15,16],"p",{},"工图这门课知识点很琐碎，很细很细，而且期末占比比较大，期末得分也有一定成分看老师判卷松紧",[14,18,19],{},"下面主要就是",[21,22,23,27,30],"ol",{},[24,25,26],"li",{},"复习知识点（其实就是完整的看ppt并且记住要点）",[24,28,29],{},"一些琐碎的、容易错的点",[24,31,32,33],{},"这个已经在98、朵朵上比较多了，",[34,35,39],"a",{"href":36,"rel":37},"https:\u002F\u002Fsavia7582.github.io\u002FExterior\u002FEngineering\u002F#%E5%B7%A5%E7%A8%8B%E5%9B%BE%E5%AD%A6",[38],"nofollow","savia学长的工图复习笔记，点击这里",[10,41,43],{"id":42},"_1-工程图学期末复习","1. 工程图学期末复习",[45,46,47],"h2",{"id":47},"零件及零件图",[49,50,51],"h3",{"id":51},"零件设计构型分类",[14,53,54],{},"根据零件的功能，其结构可以分为以下几个方面：",[21,56,57,60,63,66,69,72,75,78],{},[24,58,59],{},"支承结构：轴承孔、轴孔、支承面等；",[24,61,62],{},"连接结构：连接螺栓通孔、螺孔、键槽、轮毂等；",[24,64,65],{},"定位结构：销孔，轴肩，定位面等；",[24,67,68],{},"传动结构：各类轮齿、皮带轮等；",[24,70,71],{},"加强结构：肋板等；",[24,73,74],{},"润滑结构：储油池，注油孔，排油孔，油标孔，集油槽等；",[24,76,77],{},"密封结构：密封面，密封槽等；",[24,79,80],{},"工艺结构：退刀槽，越程槽，凸台，凹坑，圆角，倒角，轴端螺孔，中心孔等",[49,82,83],{"id":83},"零件上的常见结构及其表示法",[85,86,87],"h4",{"id":87},"螺纹",[21,89,90],{},[24,91,92],{},[93,94,95],"strong",{},"要素",[97,98,99],"blockquote",{},[21,100,101,104,107],{},[24,102,103],{},"一个与轴线共面的平面图形（三角形、梯形等），绕圆柱面作螺旋运动，则得到一圆柱螺旋体;",[24,105,106],{},"外表面叫做外螺纹，内表面是内螺纹",[24,108,109],{},"螺距与导程：螺距是最近相邻两个螺纹之间的距离；导程是",[14,111,112],{},[113,114],"img",{"alt":115,"src":116},"image-20240608230810968","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608230810968.png",[14,118,119,122],{},[93,120,121],{},"顶径","： 指的是外螺纹的大径或者内螺纹的小径；",[97,124,125,131,142],{},[14,126,127,130],{},[93,128,129],{},"螺纹顶径","，是指与外螺纹或内螺纹牙顶相切的假想圆柱或圆锥的直径。",[14,132,133,136,137,141],{},[93,134,135],{},"中径","：一个假想圆柱的直径。该圆柱的母线通过",[138,139,140],"mark",{},"牙型上沟槽和凸起宽度相等的地方","。",[14,143,144,147],{},[93,145,146],{},"公称直径","：指的是螺纹大径的基本尺寸",[14,149,150],{},[138,151,152],{},"简单理解(重点)",[14,154,155],{},"大径小径即顾名思义，大的叫大径，小的叫小径；",[14,157,158],{},"公称直径 = 大径；",[14,160,161],{},"顶径指的是露在外面的螺纹所对应的直径就叫顶径。",[21,163,165,277],{"start":164},2,[24,166,167,170],{},[93,168,169],{},"画法要素",[21,171,172,211,236,250],{},[24,173,174,175,179,182,185,189,190,195,196],{},"外螺纹",[113,176],{"alt":177,"src":178},"image-20240608231113672","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608231113672.png",[138,180,181],{},"自己画的时候的问题",[93,183,184],{},"(错误事例，补充第四点：轴线没画！！！！！)",[113,186],{"alt":187,"src":188},"image-20240608232341574","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608232341574.png","对于管螺纹，画法掌握",[138,191,192],{},[93,193,194],{},"不熟练",",要注意的点有：\n",[21,197,198,205,208],{},[24,199,200,201],{},"对于波浪线的位置不熟悉，正确画法如下（可能和savia有点出入？）",[113,202],{"alt":203,"src":204},"image-20240608233511095","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608233511095.png",[24,206,207],{},"轴线没画",[24,209,210],{},"记得画A-A剖视标记",[24,212,213,214,217,218],{},"内螺纹（注意不贯穿的画法",[93,215,216],{},"120度夹角","）要点：\n",[21,219,220,223,226,229],{},[24,221,222],{},"大径细实线，小径粗实线",[24,224,225],{},"倒角圆不画",[24,227,228],{},"注意向内的倒角",[24,230,231,232],{},"剖面线画到粗实线为止",[113,233],{"alt":234,"src":235},"image-20240608233806603","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608233806603.png",[24,237,238,239,243,247],{},"螺纹的内部结构的标注",[113,240],{"alt":241,"src":242},"image-20240608234416342","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608234416342.png",[113,244],{"alt":245,"src":246},"","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608234444430.png",[93,248,249],{},"螺纹相贯时，只在钻孔与钻孔相交处画出相贯线",[24,251,252,253,257,258],{},"螺纹连接",[113,254],{"alt":255,"src":256},"image-20240608234911928","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608234911928.png","易错点：\n",[21,259,260,267],{},[24,261,262,263,266],{},"注意",[93,264,265],{},"内螺纹的实线之外和虚线之内的部分也有剖面线","！！！！！",[24,268,269,270,273,274],{},"注意A-A剖视图两个",[93,271,272],{},"剖面线","不同且要求",[93,275,276],{},"方向相反",[24,278,279,282,286,290],{},[93,280,281],{},"螺纹标注",[113,283],{"alt":284,"src":285},"image-20240609000454082","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609000454082.png",[113,287],{"alt":288,"src":289},"image-20240608235856722","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240608235856722.png",[21,291,292,299,306,309,316],{},[24,293,294,295],{},"特征代号",[113,296],{"alt":297,"src":298},"image-20240609000348279","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609000348279.png",[24,300,301,302],{},"尺寸代号",[113,303],{"alt":304,"src":305},"image-20240609000528501","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609000528501.png",[24,307,308],{},"公差带代号",[24,310,311,312],{},"示例",[113,313],{"alt":314,"src":315},"image-20240609000713529","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609000713529.png",[24,317,318,319],{},"标注",[113,320],{"alt":321,"src":322},"image-20240609000825544","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609000825544.png",[85,324,325],{"id":325},"螺纹紧固件",[21,327,328,339],{},[24,329,330,333,334],{},[93,331,332],{},"简介","：",[97,335,336],{},[14,337,338],{},"常用的螺纹紧固件有：螺栓、螺钉、螺柱、螺母和垫圈等。由于这类零件都是标准件，通常只需用简化画法画出它们的装配图，同时给出它们的规定标记。标记方法按“GB”有关规定。",[24,340,341,333,344],{},[93,342,343],{},"画法",[21,345,346,371,398,443,450],{},[24,347,348,349,352,353,352,358,352,362,352,366],{},"单独画法",[350,351],"br",{},"\n    ",[113,354],{"src":355,"alt":356,"style":357},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609205205679.png","image-20240609205205679","zoom:20%;",[113,359],{"src":360,"alt":361,"style":357},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609205411861.png","image-20240609205411861",[113,363],{"src":364,"alt":365,"style":357},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609205444955.png","image-20240609205444955",[113,367],{"src":368,"alt":369,"style":370},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609205514107.png","image-20240609205514107","zoom: 20%;",[24,372,373,374,379,380],{},"装配画法:",[113,375],{"src":376,"alt":377,"style":378},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609212123392.png","image-20240609212123392","zoom: 50%;","注意要点：",[21,381,382,385,395],{},[24,383,384],{},"螺栓，垫圈按照不剖画",[24,386,387,388],{},"被连接件的孔径=1.1d，同时导致",[138,389,390,391,394],{},"上图中的一段",[93,392,393],{},"小实线","不要忘记！！！(即零件轮廓线应画入间隙内，交界线要插入到轮廓线位置)",[24,396,397],{},"注意剖面线方向",[24,399,400,401,406,407,411,414,415],{},"圆角螺钉",[113,402],{"src":403,"alt":404,"style":405},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609212208488.png","image-20240609212208488","zoom:50%;","等价画法：（螺纹可以到达孔“底部”）",[113,408],{"alt":409,"src":410},"image-20240609212255509","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240609212255509.png",[138,412,413],{},"需要注意的点",":",[21,416,417,420,428,431,434,437],{},[24,418,419],{},"螺钉的螺纹终止线一定要画",[24,421,422,423,427],{},"俯视图要四十五度描黑（不描黑似乎也行？",[424,425,426],"span",{},"思考","）",[24,429,430],{},"螺钉末端画到哪里——别到孔底了",[24,432,433],{},"剖面线一定要画到位置",[24,435,436],{},"螺纹终止线必须要高于螺孔口",[24,438,439,440,427],{},"这里面螺钉是否有倒角？？？（",[138,441,442],{},"书上是有倒角的，注意一下",[24,444,445,446],{},"沉头螺钉",[113,447],{"src":448,"alt":449,"style":405},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240610000708097.png","image-20240610000708097",[24,451,452,453,455,456,462,478,483,495,497],{},"螺柱连接",[350,454],{},"​    注意要点：",[113,457],{"src":458,"alt":459,"style":460,"align":461},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240610002740394.png","image-20240610002740394","zoom:33%;","right",[21,463,464,467,470,475],{},[24,465,466],{},"小径细实线要画在倒角之内",[24,468,469],{},"零件套入要有间隙",[24,471,472],{},[138,473,474],{},"旋入螺纹终止线与螺孔孔口齐平！！！！！",[24,476,477],{},"钻孔末端120度角",[113,479],{"src":480,"alt":481,"style":482},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240610003604366.png","image-20240610003604366","zoom: 25%;",[21,484,486],{"start":485},6,[24,487,488,489,491],{},"紧定螺钉",[350,490],{},[113,492],{"alt":493,"src":494},"image-20240618123451758","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618123451758.png",[350,496],{},"​",[85,499,500],{"id":500},"键连接和销连接",[502,503,504],"h5",{"id":504},"键连接",[97,506,507],{},[14,508,509],{},"键的功用、种类及标记",[21,511,512,525,534,543,583,594],{},[24,513,514,515],{},"作用：",[97,516,517,520,521],{},[14,518,519],{},"用键将轴与轴上的传动件(如齿轮、皮带轮等)联接在一起，以传递扭矩。","\n  ",[113,522],{"src":523,"alt":524,"style":378},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612172046264.png","image-20240612172046264",[24,526,527,528],{},"图示及分类",[97,529,520,530],{},[113,531],{"src":532,"alt":533,"style":405},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612172626129.png","image-20240612172626129",[24,535,536,537],{},"键的标记",[97,538,520,539],{},[113,540],{"src":541,"alt":542,"style":405},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612172722554.png","image-20240612172722554",[24,544,545,547,549,550,352,552,557,558,560,561,563,564,566,568,569,352,571,575,576,560,578,580,581],{},[93,546,343],{},[350,548],{},"1.轴上键槽画法及其尺寸注法",[350,551],{},[113,553],{"src":554,"alt":555,"style":405,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612172824339.png","image-20240612172824339","left","\n    t-键槽深度",[350,559],{},"\n    b-键槽宽度",[350,562],{},"\n    b、t、l 可按轴径d从标准中查出。",[350,565],{},[350,567],{},"2.轮毂上键槽画法及其尺寸注法",[350,570],{},[113,572],{"src":573,"alt":574,"style":378,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612173434726.png","image-20240612173434726","\n    t1 —轮毂上键槽深度",[350,577],{},[350,579],{},"\n    t1、b可按孔径D从标准中查出。",[350,582],{},[24,584,585,590],{},[113,586],{"src":587,"alt":588,"style":589},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612173901474.png","image-20240612173901474","zoom: 33%;",[113,591],{"src":592,"alt":593,"style":460},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612174236075.png","image-20240612174236075",[24,595,596,599,603],{},[93,597,598],{},"注意事项",[113,600],{"src":601,"alt":602,"style":378},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612223856938.png","image-20240612223856938",[21,604,605,608,611],{},[24,606,607],{},"开槽+空隙（如果是钩头楔键的话不要留空白）",[24,609,610],{},"下方不留空隙",[24,612,613],{},"退刀槽之后的部分与齿轮等不要有空隙",[502,615,616],{"id":616},"销连接",[97,618,619,520,622],{},[14,620,621],{},"销的功用、种类及标记",[113,623],{"src":624,"alt":625,"style":460,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612174711267.png","image-20240612174711267",[627,628,629],"h6",{"id":629},"销联接的画法",[113,631],{"src":632,"alt":633,"style":634,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612174914217.png","image-20240612174914217","zoom: 67%;",[85,636,638],{"id":637},"齿轮与齿轮齿条耦合","齿轮与齿轮、齿条耦合",[14,640,641],{},[113,642],{"alt":643,"src":644},"image-20240618135553985","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618135553985.png",[502,646,647],{"id":647},"单个齿轮与齿轮间耦合",[14,649,352,651,352,656],{"align":650},"center",[113,652],{"src":653,"alt":654,"style":655},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612222721662.png","image-20240612222721662","zoom: 35%;",[113,657],{"src":658,"alt":659,"style":660},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612222800565.png","image-20240612222800565","zoom:30%;",[113,662],{"src":663,"alt":664,"style":589,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240612223119373.png","image-20240612223119373",[502,666,667],{"id":667},"齿轮基本参数",[113,669],{"src":670,"alt":671,"style":405},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618134056911.png","image-20240618134056911",[14,673,674],{},[93,675,676,677],{},"齿顶圆",[424,678,681,709],{"className":679},[680],"katex",[424,682,685],{"className":683},[684],"katex-mathml",[686,687,689],"math",{"xmlns":688},"http:\u002F\u002Fwww.w3.org\u002F1998\u002FMath\u002FMathML",[690,691,692,704],"semantics",{},[693,694,695],"mrow",{},[696,697,698,702],"msub",{},[699,700,701],"mi",{},"d",[699,703,34],{},[705,706,708],"annotation",{"encoding":707},"application\u002Fx-tex","d_a",[424,710,714],{"className":711,"ariaHidden":713},[712],"katex-html","true",[424,715,718,723],{"className":716},[717],"base",[424,719],{"className":720,"style":722},[721],"strut","height:0.8444em;vertical-align:-0.15em;",[424,724,727,731],{"className":725},[726],"mord",[424,728,701],{"className":729},[726,730],"mathnormal",[424,732,735],{"className":733},[734],"msupsub",[424,736,740,771],{"className":737},[738,739],"vlist-t","vlist-t2",[424,741,744,767],{"className":742},[743],"vlist-r",[424,745,749],{"className":746,"style":748},[747],"vlist","height:0.1514em;",[424,750,752,757],{"style":751},"top:-2.55em;margin-left:0em;margin-right:0.05em;",[424,753],{"className":754,"style":756},[755],"pstrut","height:2.7em;",[424,758,764],{"className":759},[760,761,762,763],"sizing","reset-size6","size3","mtight",[424,765,34],{"className":766},[726,730,763],[424,768,497],{"className":769},[770],"vlist-s",[424,772,774],{"className":773},[743],[424,775,778],{"className":776,"style":777},[747],"height:0.15em;",[424,779],{},[14,781,782],{},[93,783,784,785],{},"齿根圆",[424,786,788,807],{"className":787},[680],[424,789,791],{"className":790},[684],[686,792,793],{"xmlns":688},[690,794,795,804],{},[693,796,797],{},[696,798,799,801],{},[699,800,701],{},[699,802,803],{},"f",[705,805,806],{"encoding":707},"d_f",[424,808,810],{"className":809,"ariaHidden":713},[712],[424,811,813,817],{"className":812},[717],[424,814],{"className":815,"style":816},[721],"height:0.9805em;vertical-align:-0.2861em;",[424,818,820,823],{"className":819},[726],[424,821,701],{"className":822},[726,730],[424,824,826],{"className":825},[734],[424,827,829,851],{"className":828},[738,739],[424,830,832,848],{"className":831},[743],[424,833,836],{"className":834,"style":835},[747],"height:0.3361em;",[424,837,838,841],{"style":751},[424,839],{"className":840,"style":756},[755],[424,842,844],{"className":843},[760,761,762,763],[424,845,803],{"className":846,"style":847},[726,730,763],"margin-right:0.1076em;",[424,849,497],{"className":850},[770],[424,852,854],{"className":853},[743],[424,855,858],{"className":856,"style":857},[747],"height:0.2861em;",[424,859],{},[14,861,862],{},[93,863,864,865],{},"分度圆",[424,866,868,881],{"className":867},[680],[424,869,871],{"className":870},[684],[686,872,873],{"xmlns":688},[690,874,875,879],{},[693,876,877],{},[699,878,701],{},[705,880,701],{"encoding":707},[424,882,884],{"className":883,"ariaHidden":713},[712],[424,885,887,891],{"className":886},[717],[424,888],{"className":889,"style":890},[721],"height:0.6944em;",[424,892,701],{"className":893},[726,730],[14,895,896],{},[93,897,898,899],{},"齿距",[424,900,902,915],{"className":901},[680],[424,903,905],{"className":904},[684],[686,906,907],{"xmlns":688},[690,908,909,913],{},[693,910,911],{},[699,912,14],{},[705,914,14],{"encoding":707},[424,916,918],{"className":917,"ariaHidden":713},[712],[424,919,921,925],{"className":920},[717],[424,922],{"className":923,"style":924},[721],"height:0.625em;vertical-align:-0.1944em;",[424,926,14],{"className":927},[726,730],[14,929,930,931,962],{},"**齿数",[424,932,934,948],{"className":933},[680],[424,935,937],{"className":936},[684],[686,938,939],{"xmlns":688},[690,940,941,946],{},[693,942,943],{},[699,944,945],{},"z",[705,947,945],{"encoding":707},[424,949,951],{"className":950,"ariaHidden":713},[712],[424,952,954,958],{"className":953},[717],[424,955],{"className":956,"style":957},[721],"height:0.4306em;",[424,959,945],{"className":960,"style":961},[726,730],"margin-right:0.044em;","：**一个齿轮的轮齿总数",[14,964,965,966,995],{},"**模数",[424,967,969,983],{"className":968},[680],[424,970,972],{"className":971},[684],[686,973,974],{"xmlns":688},[690,975,976,981],{},[693,977,978],{},[699,979,980],{},"m",[705,982,980],{"encoding":707},[424,984,986],{"className":985,"ariaHidden":713},[712],[424,987,989,992],{"className":988},[717],[424,990],{"className":991,"style":957},[721],[424,993,980],{"className":994},[726,730],"：**齿轮的齿数z、齿距p和分度圆直径d之间有如下关系：",[97,997,998],{},[14,999,1000],{},[424,1001,1003,1046],{"className":1002},[680],[424,1004,1006],{"className":1005},[684],[686,1007,1008],{"xmlns":688},[690,1009,1010,1043],{},[693,1011,1012,1015,1017,1021,1023,1025,1029,1031,1033,1035,1037,1041],{},[699,1013,1014],{},"π",[699,1016,701],{},[1018,1019,1020],"mo",{},"=",[699,1022,945],{},[699,1024,14],{},[1026,1027,1028],"mtext",{},"即",[699,1030,701],{},[1018,1032,1020],{},[699,1034,945],{},[699,1036,14],{},[699,1038,1040],{"mathvariant":1039},"normal","\u002F",[699,1042,1014],{},[705,1044,1045],{"encoding":707},"\\pi d = zp\t即 d = zp\u002F \\pi",[424,1047,1049,1074,1103],{"className":1048,"ariaHidden":713},[712],[424,1050,1052,1055,1059,1062,1067,1071],{"className":1051},[717],[424,1053],{"className":1054,"style":890},[721],[424,1056,1014],{"className":1057,"style":1058},[726,730],"margin-right:0.0359em;",[424,1060,701],{"className":1061},[726,730],[424,1063],{"className":1064,"style":1066},[1065],"mspace","margin-right:0.2778em;",[424,1068,1020],{"className":1069},[1070],"mrel",[424,1072],{"className":1073,"style":1066},[1065],[424,1075,1077,1081,1084,1087,1091,1094,1097,1100],{"className":1076},[717],[424,1078],{"className":1079,"style":1080},[721],"height:0.8889em;vertical-align:-0.1944em;",[424,1082,945],{"className":1083,"style":961},[726,730],[424,1085,14],{"className":1086},[726,730],[424,1088,1028],{"className":1089},[726,1090],"cjk_fallback",[424,1092,701],{"className":1093},[726,730],[424,1095],{"className":1096,"style":1066},[1065],[424,1098,1020],{"className":1099},[1070],[424,1101],{"className":1102,"style":1066},[1065],[424,1104,1106,1110,1113,1116,1119],{"className":1105},[717],[424,1107],{"className":1108,"style":1109},[721],"height:1em;vertical-align:-0.25em;",[424,1111,945],{"className":1112,"style":961},[726,730],[424,1114,14],{"className":1115},[726,730],[424,1117,1040],{"className":1118},[726],[424,1120,1014],{"className":1121,"style":1058},[726,730],[14,1123,1124,1125,1154,1155],{},"​\t由于式中出现了无理数",[424,1126,1128,1142],{"className":1127},[680],[424,1129,1131],{"className":1130},[684],[686,1132,1133],{"xmlns":688},[690,1134,1135,1139],{},[693,1136,1137],{},[699,1138,1014],{},[705,1140,1141],{"encoding":707},"\\pi",[424,1143,1145],{"className":1144,"ariaHidden":713},[712],[424,1146,1148,1151],{"className":1147},[717],[424,1149],{"className":1150,"style":957},[721],[424,1152,1014],{"className":1153,"style":1058},[726,730],"，不便计算和标准化，",[424,1156,1158,1194],{"className":1157},[680],[424,1159,1161],{"className":1160},[684],[686,1162,1163],{"xmlns":688},[690,1164,1165,1191],{},[693,1166,1167,1170,1172,1174,1176,1178,1180,1183,1185,1187,1189],{},[1026,1168,1169],{},"令",[699,1171,14],{},[699,1173,1040],{"mathvariant":1039},[699,1175,1014],{},[1018,1177,1020],{},[699,1179,980],{},[1026,1181,1182],{},"，则",[699,1184,701],{},[1018,1186,1020],{},[699,1188,980],{},[699,1190,945],{},[705,1192,1193],{"encoding":707},"令p\u002F \\pi= m，则d = mz",[424,1195,1197,1224,1248],{"className":1196,"ariaHidden":713},[712],[424,1198,1200,1203,1206,1209,1212,1215,1218,1221],{"className":1199},[717],[424,1201],{"className":1202,"style":1109},[721],[424,1204,1169],{"className":1205},[726,1090],[424,1207,14],{"className":1208},[726,730],[424,1210,1040],{"className":1211},[726],[424,1213,1014],{"className":1214,"style":1058},[726,730],[424,1216],{"className":1217,"style":1066},[1065],[424,1219,1020],{"className":1220},[1070],[424,1222],{"className":1223,"style":1066},[1065],[424,1225,1227,1230,1233,1236,1239,1242,1245],{"className":1226},[717],[424,1228],{"className":1229,"style":890},[721],[424,1231,980],{"className":1232},[726,730],[424,1234,1182],{"className":1235},[726,1090],[424,1237,701],{"className":1238},[726,730],[424,1240],{"className":1241,"style":1066},[1065],[424,1243,1020],{"className":1244},[1070],[424,1246],{"className":1247,"style":1066},[1065],[424,1249,1251,1254,1257],{"className":1250},[717],[424,1252],{"className":1253,"style":957},[721],[424,1255,980],{"className":1256},[726,730],[424,1258,945],{"className":1259,"style":961},[726,730],[14,1261,1262,1263,1291],{},"模数",[424,1264,1266,1279],{"className":1265},[680],[424,1267,1269],{"className":1268},[684],[686,1270,1271],{"xmlns":688},[690,1272,1273,1277],{},[693,1274,1275],{},[699,1276,980],{},[705,1278,980],{"encoding":707},[424,1280,1282],{"className":1281,"ariaHidden":713},[712],[424,1283,1285,1288],{"className":1284},[717],[424,1286],{"className":1287,"style":957},[721],[424,1289,980],{"className":1290},[726,730],"：是设计、制造齿轮的重要参数。m值越大表示齿轮承载能力越大。\n为了便于设计加工，模数的值已标准化",[14,1293,1294,1297,1298,1369,1373,1374,1443,1444,141],{},[93,1295,1296],{},"齿高：","(齿顶高系数)",[424,1299,1301,1320],{"className":1300},[680],[424,1302,1304],{"className":1303},[684],[686,1305,1306],{"xmlns":688},[690,1307,1308,1317],{},[693,1309,1310],{},[696,1311,1312,1315],{},[699,1313,1314],{},"h",[699,1316,34],{},[705,1318,1319],{"encoding":707},"h_a",[424,1321,1323],{"className":1322,"ariaHidden":713},[712],[424,1324,1326,1329],{"className":1325},[717],[424,1327],{"className":1328,"style":722},[721],[424,1330,1332,1335],{"className":1331},[726],[424,1333,1314],{"className":1334},[726,730],[424,1336,1338],{"className":1337},[734],[424,1339,1341,1361],{"className":1340},[738,739],[424,1342,1344,1358],{"className":1343},[743],[424,1345,1347],{"className":1346,"style":748},[747],[424,1348,1349,1352],{"style":751},[424,1350],{"className":1351,"style":756},[755],[424,1353,1355],{"className":1354},[760,761,762,763],[424,1356,34],{"className":1357},[726,730,763],[424,1359,497],{"className":1360},[770],[424,1362,1364],{"className":1363},[743],[424,1365,1367],{"className":1366,"style":777},[747],[424,1368],{},[1370,1371,1372],"em",{},"：齿轮的齿顶高通常规定为与模数成一定的比，该比值称为齿顶高系数， ha","  = ha \u002Fm，我国规定正常齿轮的齿顶高系数",[424,1375,1377,1394],{"className":1376},[680],[424,1378,1380],{"className":1379},[684],[686,1381,1382],{"xmlns":688},[690,1383,1384,1392],{},[693,1385,1386],{},[696,1387,1388,1390],{},[699,1389,1314],{},[699,1391,34],{},[705,1393,1319],{"encoding":707},[424,1395,1397],{"className":1396,"ariaHidden":713},[712],[424,1398,1400,1403],{"className":1399},[717],[424,1401],{"className":1402,"style":722},[721],[424,1404,1406,1409],{"className":1405},[726],[424,1407,1314],{"className":1408},[726,730],[424,1410,1412],{"className":1411},[734],[424,1413,1415,1435],{"className":1414},[738,739],[424,1416,1418,1432],{"className":1417},[743],[424,1419,1421],{"className":1420,"style":748},[747],[424,1422,1423,1426],{"style":751},[424,1424],{"className":1425,"style":756},[755],[424,1427,1429],{"className":1428},[760,761,762,763],[424,1430,34],{"className":1431},[726,730,763],[424,1433,497],{"className":1434},[770],[424,1436,1438],{"className":1437},[743],[424,1439,1441],{"className":1440,"style":777},[747],[424,1442],{},"  = 1，因此有：",[424,1445,1447,1482],{"className":1446},[680],[424,1448,1450],{"className":1449},[684],[686,1451,1452],{"xmlns":688},[690,1453,1454,1479],{},[693,1455,1456,1462,1464,1470,1473,1475,1477],{},[696,1457,1458,1460],{},[699,1459,1314],{},[699,1461,34],{},[1018,1463,1020],{},[696,1465,1466,1468],{},[699,1467,1314],{},[699,1469,34],{},[1018,1471,1472],{},"×",[699,1474,980],{},[1018,1476,1020],{},[699,1478,980],{},[705,1480,1481],{"encoding":707}," h_a  = h_a \\times m = m",[424,1483,1485,1540,1597,1615],{"className":1484,"ariaHidden":713},[712],[424,1486,1488,1491,1531,1534,1537],{"className":1487},[717],[424,1489],{"className":1490,"style":722},[721],[424,1492,1494,1497],{"className":1493},[726],[424,1495,1314],{"className":1496},[726,730],[424,1498,1500],{"className":1499},[734],[424,1501,1503,1523],{"className":1502},[738,739],[424,1504,1506,1520],{"className":1505},[743],[424,1507,1509],{"className":1508,"style":748},[747],[424,1510,1511,1514],{"style":751},[424,1512],{"className":1513,"style":756},[755],[424,1515,1517],{"className":1516},[760,761,762,763],[424,1518,34],{"className":1519},[726,730,763],[424,1521,497],{"className":1522},[770],[424,1524,1526],{"className":1525},[743],[424,1527,1529],{"className":1528,"style":777},[747],[424,1530],{},[424,1532],{"className":1533,"style":1066},[1065],[424,1535,1020],{"className":1536},[1070],[424,1538],{"className":1539,"style":1066},[1065],[424,1541,1543,1546,1586,1590,1594],{"className":1542},[717],[424,1544],{"className":1545,"style":722},[721],[424,1547,1549,1552],{"className":1548},[726],[424,1550,1314],{"className":1551},[726,730],[424,1553,1555],{"className":1554},[734],[424,1556,1558,1578],{"className":1557},[738,739],[424,1559,1561,1575],{"className":1560},[743],[424,1562,1564],{"className":1563,"style":748},[747],[424,1565,1566,1569],{"style":751},[424,1567],{"className":1568,"style":756},[755],[424,1570,1572],{"className":1571},[760,761,762,763],[424,1573,34],{"className":1574},[726,730,763],[424,1576,497],{"className":1577},[770],[424,1579,1581],{"className":1580},[743],[424,1582,1584],{"className":1583,"style":777},[747],[424,1585],{},[424,1587],{"className":1588,"style":1589},[1065],"margin-right:0.2222em;",[424,1591,1472],{"className":1592},[1593],"mbin",[424,1595],{"className":1596,"style":1589},[1065],[424,1598,1600,1603,1606,1609,1612],{"className":1599},[717],[424,1601],{"className":1602,"style":957},[721],[424,1604,980],{"className":1605},[726,730],[424,1607],{"className":1608,"style":1066},[1065],[424,1610,1020],{"className":1611},[1070],[424,1613],{"className":1614,"style":1066},[1065],[424,1616,1618,1621],{"className":1617},[717],[424,1619],{"className":1620,"style":957},[721],[424,1622,980],{"className":1623},[726,730],[14,1625,1626,1629],{},[93,1627,1628],{},"齿根高：",[424,1630,1632,1658],{"className":1631},[680],[424,1633,1635],{"className":1634},[684],[686,1636,1637],{"xmlns":688},[690,1638,1639,1655],{},[693,1640,1641,1647,1649,1653],{},[696,1642,1643,1645],{},[699,1644,1314],{},[699,1646,803],{},[1018,1648,1020],{},[1650,1651,1652],"mn",{},"1.25",[699,1654,980],{},[705,1656,1657],{"encoding":707},"h_f = 1.25m",[424,1659,1661,1716],{"className":1660,"ariaHidden":713},[712],[424,1662,1664,1667,1707,1710,1713],{"className":1663},[717],[424,1665],{"className":1666,"style":816},[721],[424,1668,1670,1673],{"className":1669},[726],[424,1671,1314],{"className":1672},[726,730],[424,1674,1676],{"className":1675},[734],[424,1677,1679,1699],{"className":1678},[738,739],[424,1680,1682,1696],{"className":1681},[743],[424,1683,1685],{"className":1684,"style":835},[747],[424,1686,1687,1690],{"style":751},[424,1688],{"className":1689,"style":756},[755],[424,1691,1693],{"className":1692},[760,761,762,763],[424,1694,803],{"className":1695,"style":847},[726,730,763],[424,1697,497],{"className":1698},[770],[424,1700,1702],{"className":1701},[743],[424,1703,1705],{"className":1704,"style":857},[747],[424,1706],{},[424,1708],{"className":1709,"style":1066},[1065],[424,1711,1020],{"className":1712},[1070],[424,1714],{"className":1715,"style":1066},[1065],[424,1717,1719,1723,1726],{"className":1718},[717],[424,1720],{"className":1721,"style":1722},[721],"height:0.6444em;",[424,1724,1652],{"className":1725},[726],[424,1727,980],{"className":1728},[726,730],[14,1730,1731,1732,1763,1764,1820,1821,1851],{},"**齿顶角",[424,1733,1735,1750],{"className":1734},[680],[424,1736,1738],{"className":1737},[684],[686,1739,1740],{"xmlns":688},[690,1741,1742,1747],{},[693,1743,1744],{},[699,1745,1746],{},"α",[705,1748,1749],{"encoding":707},"\\alpha",[424,1751,1753],{"className":1752,"ariaHidden":713},[712],[424,1754,1756,1759],{"className":1755},[717],[424,1757],{"className":1758,"style":957},[721],[424,1760,1746],{"className":1761,"style":1762},[726,730],"margin-right:0.0037em;","：**齿廓曲线在分度圆上的一点处的速度方向与曲线在该点处的法线方向之间所夹锐角称为齿形角。齿形角也已经标准化，我国规定",[424,1765,1767,1789],{"className":1766},[680],[424,1768,1770],{"className":1769},[684],[686,1771,1772],{"xmlns":688},[690,1773,1774,1786],{},[693,1775,1776,1778,1780,1783],{},[699,1777,1746],{},[1018,1779,1020],{},[1650,1781,1782],{},"20",[1026,1784,1785],{},"º",[705,1787,1788],{"encoding":707},"\\alpha = 20º",[424,1790,1792,1810],{"className":1791,"ariaHidden":713},[712],[424,1793,1795,1798,1801,1804,1807],{"className":1794},[717],[424,1796],{"className":1797,"style":957},[721],[424,1799,1746],{"className":1800,"style":1762},[726,730],[424,1802],{"className":1803,"style":1066},[1065],[424,1805,1020],{"className":1806},[1070],[424,1808],{"className":1809,"style":1066},[1065],[424,1811,1813,1816],{"className":1812},[717],[424,1814],{"className":1815,"style":1722},[721],[424,1817,1819],{"className":1818},[726],"20º","，即规定分度圆为通过齿廓曲线上齿形角为",[424,1822,1824,1839],{"className":1823},[680],[424,1825,1827],{"className":1826},[684],[686,1828,1829],{"xmlns":688},[690,1830,1831,1837],{},[693,1832,1833,1835],{},[1650,1834,1782],{},[1026,1836,1785],{},[705,1838,1819],{"encoding":707},[424,1840,1842],{"className":1841,"ariaHidden":713},[712],[424,1843,1845,1848],{"className":1844},[717],[424,1846],{"className":1847,"style":1722},[721],[424,1849,1819],{"className":1850},[726],"的点所作的圆。",[14,1853,1854,333,1887],{},[93,1855,1856,1857],{},"传动比：",[424,1858,1860,1874],{"className":1859},[680],[424,1861,1863],{"className":1862},[684],[686,1864,1865],{"xmlns":688},[690,1866,1867,1872],{},[693,1868,1869],{},[699,1870,1871],{},"i",[705,1873,1871],{"encoding":707},[424,1875,1877],{"className":1876,"ariaHidden":713},[712],[424,1878,1880,1884],{"className":1879},[717],[424,1881],{"className":1882,"style":1883},[721],"height:0.6595em;",[424,1885,1871],{"className":1886},[726,730],[424,1888,1890,1939],{"className":1889},[680],[424,1891,1893],{"className":1892},[684],[686,1894,1895],{"xmlns":688},[690,1896,1897,1936],{},[693,1898,1899,1901,1903,1911,1913,1920,1922,1928,1930],{},[699,1900,1871],{},[1018,1902,1020],{},[696,1904,1905,1908],{},[699,1906,1907],{},"n",[1650,1909,1910],{},"1",[699,1912,1040],{"mathvariant":1039},[696,1914,1915,1917],{},[699,1916,1907],{},[1650,1918,1919],{},"2",[1018,1921,1020],{},[696,1923,1924,1926],{},[699,1925,945],{},[1650,1927,1919],{},[699,1929,1040],{"mathvariant":1039},[696,1931,1932,1934],{},[699,1933,945],{},[1650,1935,1910],{},[705,1937,1938],{"encoding":707},"i = n_1 \u002F n_2 = z_2 \u002F z_1",[424,1940,1942,1960,2059],{"className":1941,"ariaHidden":713},[712],[424,1943,1945,1948,1951,1954,1957],{"className":1944},[717],[424,1946],{"className":1947,"style":1883},[721],[424,1949,1871],{"className":1950},[726,730],[424,1952],{"className":1953,"style":1066},[1065],[424,1955,1020],{"className":1956},[1070],[424,1958],{"className":1959,"style":1066},[1065],[424,1961,1963,1966,2007,2010,2050,2053,2056],{"className":1962},[717],[424,1964],{"className":1965,"style":1109},[721],[424,1967,1969,1972],{"className":1968},[726],[424,1970,1907],{"className":1971},[726,730],[424,1973,1975],{"className":1974},[734],[424,1976,1978,1999],{"className":1977},[738,739],[424,1979,1981,1996],{"className":1980},[743],[424,1982,1985],{"className":1983,"style":1984},[747],"height:0.3011em;",[424,1986,1987,1990],{"style":751},[424,1988],{"className":1989,"style":756},[755],[424,1991,1993],{"className":1992},[760,761,762,763],[424,1994,1910],{"className":1995},[726,763],[424,1997,497],{"className":1998},[770],[424,2000,2002],{"className":2001},[743],[424,2003,2005],{"className":2004,"style":777},[747],[424,2006],{},[424,2008,1040],{"className":2009},[726],[424,2011,2013,2016],{"className":2012},[726],[424,2014,1907],{"className":2015},[726,730],[424,2017,2019],{"className":2018},[734],[424,2020,2022,2042],{"className":2021},[738,739],[424,2023,2025,2039],{"className":2024},[743],[424,2026,2028],{"className":2027,"style":1984},[747],[424,2029,2030,2033],{"style":751},[424,2031],{"className":2032,"style":756},[755],[424,2034,2036],{"className":2035},[760,761,762,763],[424,2037,1919],{"className":2038},[726,763],[424,2040,497],{"className":2041},[770],[424,2043,2045],{"className":2044},[743],[424,2046,2048],{"className":2047,"style":777},[747],[424,2049],{},[424,2051],{"className":2052,"style":1066},[1065],[424,2054,1020],{"className":2055},[1070],[424,2057],{"className":2058,"style":1066},[1065],[424,2060,2062,2065,2106,2109],{"className":2061},[717],[424,2063],{"className":2064,"style":1109},[721],[424,2066,2068,2071],{"className":2067},[726],[424,2069,945],{"className":2070,"style":961},[726,730],[424,2072,2074],{"className":2073},[734],[424,2075,2077,2098],{"className":2076},[738,739],[424,2078,2080,2095],{"className":2079},[743],[424,2081,2083],{"className":2082,"style":1984},[747],[424,2084,2086,2089],{"style":2085},"top:-2.55em;margin-left:-0.044em;margin-right:0.05em;",[424,2087],{"className":2088,"style":756},[755],[424,2090,2092],{"className":2091},[760,761,762,763],[424,2093,1919],{"className":2094},[726,763],[424,2096,497],{"className":2097},[770],[424,2099,2101],{"className":2100},[743],[424,2102,2104],{"className":2103,"style":777},[747],[424,2105],{},[424,2107,1040],{"className":2108},[726],[424,2110,2112,2115],{"className":2111},[726],[424,2113,945],{"className":2114,"style":961},[726,730],[424,2116,2118],{"className":2117},[734],[424,2119,2121,2141],{"className":2120},[738,739],[424,2122,2124,2138],{"className":2123},[743],[424,2125,2127],{"className":2126,"style":1984},[747],[424,2128,2129,2132],{"style":2085},[424,2130],{"className":2131,"style":756},[755],[424,2133,2135],{"className":2134},[760,761,762,763],[424,2136,1910],{"className":2137},[726,763],[424,2139,497],{"className":2140},[770],[424,2142,2144],{"className":2143},[743],[424,2145,2147],{"className":2146,"style":777},[747],[424,2148],{},[85,2150,2151],{"id":2151},"滚动轴承",[502,2153,2155],{"id":2154},"滚动轴承的结构分类及代号","滚动轴承的结构、分类及代号",[21,2157,2158],{},[24,2159,2160],{},"结构",[113,2162],{"src":2163,"alt":2164,"style":460,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618124442260.png","image-20240618124442260",[21,2166,2167,2184],{"start":164},[24,2168,2169,2170],{},"分类",[97,2171,2172,2175,2178,2181],{},[14,2173,2174],{},"按其承受的载荷方向分为：",[14,2176,2177],{},"☆ 向心轴承—主要承受径向力",[14,2179,2180],{},"☆ 推力轴承—主要承受轴向力",[14,2182,2183],{},"☆ 向心推力轴承—同时承受径向力和轴向力",[24,2185,2186],{},"代号",[97,2188,2189],{},[21,2190,2191,2194,2229,2251],{},[24,2192,2193],{},"构成：按顺序由前置代号、基本代号、后置代号构成。",[24,2195,2196,2197,2199,2200,2211,2213,2214],{},"基本代号：基本代号表示轴承的基本类型、结构和尺寸，是轴承代号的基础。",[350,2198],{},"基本代号包括：",[21,2201,2202,2205,2208],{},[24,2203,2204],{},"轴承类型代号",[24,2206,2207],{},"尺寸系列代号",[24,2209,2210],{},"内径代号",[350,2212],{},"​    基本代号通常用4 位数字表示，从左往右依次为：",[21,2215,2216,2223,2226],{},[24,2217,2218,2219],{},"第一位数字是轴承类型代号。如下表所示：",[113,2220],{"src":2221,"alt":2222,"style":482,"align":556},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618125208951.png","image-20240618125208951",[24,2224,2225],{},"第二位数字是尺寸系列代号",[24,2227,2228],{},"右边的两位数字是内径代号： 当内径尺寸在20-480mm范围内时，内径尺寸=内径代号x5 。",[24,2230,2231,2241,2242,2244,2245,2247,2248,2250],{},[2232,2233,2238],"pre",{"className":2234,"code":2236,"language":2237},[2235],"language-text"," 例子：\n","text",[2239,2240,2236],"code",{"__ignoreMap":245},"如：轴承代号 6204",[350,2243],{},"​\t\t6—类型代号（深沟球轴承）",[350,2246],{},"​\t\t2—尺寸系列（02）代号",[350,2249],{},"​\t\t04—内径代号（内径尺寸=04x5=20mm）",[24,2252,2253,2254],{},"画法：",[2255,2256,2257,2260,2274],"ul",{},[24,2258,2259],{},"滚动轴承是标准件，在装配图中通常采用简化画法",[24,2261,2262,2263],{},"主要参数（d、D、B 根据轴承代号在画图前查标准确定）\n",[21,2264,2265,2268,2271],{},[24,2266,2267],{},"d （内径）",[24,2269,2270],{},"D（外径）",[24,2272,2273],{},"B（宽度）",[24,2275,2276],{},[113,2277],{"src":2278,"alt":2279,"style":378},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618135830856.png","image-20240618135830856",[85,2281,2283],{"id":2282},"弹簧缺","弹簧（缺）",[49,2285,2286],{"id":2286},"零件图",[85,2288,2289],{"id":2289},"表面结构要求",[502,2291,2293],{"id":2292},"表面粗糙度","表面粗糙度:",[14,2295,2296],{},"定义：",[97,2298,2299],{},[14,2300,2301],{},"在加工零件时，由于刀具在零件表面上留下的刀痕及切削分裂时表面金属的塑性变形所形成的具有较小间距（通常波距小于1mm）的峰谷所组成的微观几何形状特性。",[502,2303,2304],{"id":2304},"表面波纹度",[502,2306,2307],{"id":2307},"形状误差",[14,2309,2310],{},[138,2311,2312],{},"表面结构是原始轮廓（P轮廓）、粗糙度轮廓（R轮廓）和波纹度轮廓（W轮廓）的叠加",[85,2314,2315],{"id":2315},"评定表面结构的轮廓参数",[21,2317,2318,2332,2342,2345,2350],{},[24,2319,2320,2321,2324,2325,141],{},"轮廓参数是工程图样中常用的评定表面结构的参数，它包含了",[93,2322,2323],{},"粗糙度轮廓参数（R参数）","、",[93,2326,2327,2328,2331],{},"波纹度轮廓参数（W参数）",[93,2329,2330],{},"和","原始轮廓参数（P参数）",[24,2333,2334,2337,2338,2341],{},[93,2335,2336],{},"评定粗糙度轮廓参数: Ra和Rz","，其中",[93,2339,2340],{},"Ra是最常用","的评定参数。",[24,2343,2344],{},"轮廓算术平均偏差——Ra：在取样长度l范围内，被测轮廓上各点至基准线的距离yi的算术平均值。",[24,2346,2347],{},[113,2348],{"alt":245,"src":2349},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618142328228.png",[24,2351,2352,2353,2357,2359,2362],{},"表面结构符号",[113,2354],{"alt":2355,"src":2356},"image-20240618142657444","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618142657444.png",[350,2358],{},[93,2360,2361],{},"细捋",[21,2363,2364,2367,2370,2373,2376,2379,2390],{},[24,2365,2366],{},"第一个是任何方法获得",[24,2368,2369],{},"第二个是去除材料的方法获得",[24,2371,2372],{},"第三个是不用去除材料的方法得到",[24,2374,2375],{},"第四个是加横线来标注参数和说明",[24,2377,2378],{},"第五个加圆圈是表示所有表面具有相同表面粗糙程度要求",[24,2380,2381,2382],{},"对于标注要求（就是除了参数以外的那个东西），有两个：\n",[21,2383,2384,2387],{},[24,2385,2386],{},"不标注的话默认16%规则：实测不超过总数16%个不合格的",[24,2388,2389],{},"标注max则是最大值规则：实测不能超过给定的上限值，即不超过总数0%个不合格的",[24,2391,262,2392,2395,2396],{},[93,2393,2394],{},"Ra的单位","是",[424,2397,2399,2420],{"className":2398},[680],[424,2400,2402],{"className":2401},[684],[686,2403,2404],{"xmlns":688},[690,2405,2406,2417],{},[693,2407,2408],{},[2409,2410,2412,2415],"mstyle",{"style":2411},"text-shadow: 0.02em 0.01em 0.04px",[699,2413,2414],{},"μ",[699,2416,980],{},[705,2418,2419],{"encoding":707},"\\pmb{\\mu m}",[424,2421,2423],{"className":2422,"ariaHidden":713},[712],[424,2424,2426,2429],{"className":2425},[717],[424,2427],{"className":2428,"style":924},[721],[424,2430,2433,2436],{"className":2431,"style":2432},[726],"text-shadow:0.02em 0.01em 0.04px;",[424,2434,2414],{"className":2435},[726,730],[424,2437,980],{"className":2438},[726,730],[14,2440,2441],{},[113,2442],{"alt":2443,"src":2444},"image-20240618145714317","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618145714317.png",[14,2446,2447],{},[113,2448],{"alt":2449,"src":2450},"image-20240618145726501","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618145726501.png",[14,2452,2453,2458],{},[113,2454],{"src":2455,"alt":2456,"style":2457},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618145800958.png","image-20240618145800958","zoom:67%;",[113,2459],{"alt":2460,"src":2461},"image-20240618145825715","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618145825715.png",[14,2463,2464],{},[113,2465],{"alt":2466,"src":2467},"image-20240618150018040","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618150018040.png",[85,2469,2470],{"id":2470},"极限与配合",[502,2472,2473],{"id":2473},"偏差",[2255,2475,2476,2479,2482],{},[24,2477,2478],{},"公称尺寸",[24,2480,2481],{},"极限尺寸",[24,2483,2484],{},"实际尺寸",[14,2486,2487,333],{},[93,2488,2489],{},"尺寸偏差",[21,2491,2492,2495,2498],{},[24,2493,2494],{},"上极限偏差 = 上极限尺寸-公称尺寸，孔用ES，轴用es表示",[24,2496,2497],{},"下极限偏差 = 下极限尺寸-公称尺寸，孔用EI，轴用ei表示",[24,2499,2500],{},"公差：上-下",[502,2502,2503,2504],{"id":2503},"公差带",[113,2505],{"alt":2506,"src":2507},"image-20240618214520854","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618214520854.png",[627,2509,2510],{"id":2510},"标准公差和基本偏差",[21,2512,2513,2535,2542],{},[24,2514,2515,2516,2519,2520,2523,2524,2527,2528,2531,2532,141],{},"国家标准《极限与配合》规定了",[93,2517,2518],{},"公差带由标准公差和基本偏差","两个要素组成。",[93,2521,2522],{},"标准公差","确定",[93,2525,2526],{},"公差带的大小","，而",[93,2529,2530],{},"基本偏差","确定公差带的",[93,2533,2534],{},"位置",[24,2536,2537,2538,2541],{},"标准公差的数值由",[93,2539,2540],{},"公称尺寸和公差等级","确定，公差等级分20个等级：IT01、IT0、IT1～IT18，精度依次降低。",[24,2543,2544,2545],{},"基本偏差确定公差带相对于零线的位置，一般为靠近零线的那个极限偏差，",[138,2546,2547],{},"代号: 孔用大写字母，轴用小字母表示，各28个。",[502,2549,2550],{"id":2550},"配合",[21,2552,2553,2711,2725],{},[24,2554,2555,2558,2559,2561],{},[93,2556,2557],{},"公称尺寸相同","相互结合的孔和轴的公差带之间的关系。",[350,2560],{},[424,2562,2564,2608],{"className":2563},[680],[424,2565,2567],{"className":2566},[684],[686,2568,2569],{"xmlns":688},[690,2570,2571,2605],{},[693,2572,2573,2576,2578,2581,2584,2586,2589,2592,2595,2597,2600,2602],{},[699,2574,2575],{},"δ",[1018,2577,1020],{},[1026,2579,2580],{},"孔的实际尺寸－轴的实际尺寸",[1018,2582,2583],{"separator":713},",",[699,2585,2575],{},[1018,2587,2588],{},"≥",[1650,2590,2591],{},"0",[1026,2593,2594],{},"间隙    ",[699,2596,2575],{},[1018,2598,2599],{},"≤",[1650,2601,2591],{},[1026,2603,2604],{},"过盈",[705,2606,2607],{"encoding":707},"δ=孔的实际尺寸－轴的实际尺寸,δ≥0 间隙 \\ \\ \\ \\  δ≤ 0 过盈",[424,2609,2611,2630,2659,2698],{"className":2610,"ariaHidden":713},[712],[424,2612,2614,2617,2621,2624,2627],{"className":2613},[717],[424,2615],{"className":2616,"style":890},[721],[424,2618,2575],{"className":2619,"style":2620},[726,730],"margin-right:0.0379em;",[424,2622],{"className":2623,"style":1066},[1065],[424,2625,1020],{"className":2626},[1070],[424,2628],{"className":2629,"style":1066},[1065],[424,2631,2633,2636,2639,2643,2647,2650,2653,2656],{"className":2632},[717],[424,2634],{"className":2635,"style":1080},[721],[424,2637,2580],{"className":2638},[726,1090],[424,2640,2583],{"className":2641},[2642],"mpunct",[424,2644],{"className":2645,"style":2646},[1065],"margin-right:0.1667em;",[424,2648,2575],{"className":2649,"style":2620},[726,730],[424,2651],{"className":2652,"style":1066},[1065],[424,2654,2588],{"className":2655},[1070],[424,2657],{"className":2658,"style":1066},[1065],[424,2660,2662,2666,2669,2673,2677,2680,2683,2686,2689,2692,2695],{"className":2661},[717],[424,2663],{"className":2664,"style":2665},[721],"height:0.8304em;vertical-align:-0.136em;",[424,2667,2591],{"className":2668},[726],[424,2670,2672],{"className":2671},[726,1090],"间隙",[424,2674,2676],{"className":2675},[1065]," ",[424,2678,2676],{"className":2679},[1065],[424,2681,2676],{"className":2682},[1065],[424,2684,2676],{"className":2685},[1065],[424,2687,2575],{"className":2688,"style":2620},[726,730],[424,2690],{"className":2691,"style":1066},[1065],[424,2693,2599],{"className":2694},[1070],[424,2696],{"className":2697,"style":1066},[1065],[424,2699,2701,2705,2708],{"className":2700},[717],[424,2702],{"className":2703,"style":2704},[721],"height:0.6833em;",[424,2706,2591],{"className":2707},[726],[424,2709,2604],{"className":2710},[726,1090],[24,2712,2713,2714],{},"种类：",[21,2715,2716,2719,2722],{},[24,2717,2718],{},"过盈配合",[24,2720,2721],{},"过渡配合",[24,2723,2724],{},"间隙配合",[24,2726,2727,2728],{},"配合制",[2255,2729,2730,2743],{},[24,2731,2732,2733],{},"基孔制配合\n",[2255,2734,2735],{},[24,2736,2737],{},[2232,2738,2741],{"className":2739,"code":2740,"language":2237},[2235]," 基本偏差为一定的孔的公差带，与不同基本偏差的轴的公差带形成各种配合的制度。基孔制的孔称为基准孔，其基本偏差代号为Ｈ，其**下偏差**为零。\n",[2239,2742,2740],{"__ignoreMap":245},[24,2744,2745,2746],{},"基轴制配合\n",[2255,2747,2748,2756],{},[24,2749,2750],{},[2232,2751,2754],{"className":2752,"code":2753,"language":2237},[2235],"基本偏差为一定的轴的公差带与不同基本偏差的孔的公差带形成各种配合的制度。基轴制的轴称为基准轴，其基本偏差代号为ｈ，其**上偏差**为零。\n",[2239,2755,2753],{"__ignoreMap":245},[24,2757,2758],{},[113,2759],{"src":2760,"alt":2761,"style":634},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215409782.png","image-20240618215409782",[113,2763],{"src":2764,"alt":2765,"style":378},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215513861.png","image-20240618215513861",[21,2767,2769],{"start":2768},4,[24,2770,2771,2772],{},"极限与配合在图上的标注\n",[2255,2773,2774,2781],{},[24,2775,2776,2777],{},"在装配图中配合的标注",[113,2778],{"alt":2779,"src":2780},"image-20240618215827945","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215827945.png",[24,2782,2783,2784],{},"在零件图中极限的标注\n",[2255,2785,2786,2792,2798],{},[24,2787,2788],{},[113,2789],{"alt":2790,"src":2791},"image-20240618215903381","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215903381.png",[24,2793,2794],{},[113,2795],{"alt":2796,"src":2797},"image-20240618215921130","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215921130.png",[24,2799,2800],{},[113,2801],{"alt":2802,"src":2803},"image-20240618215937109","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618215937109.png",[10,2805,2807],{"id":2806},"_2-工图琐碎知识点","2. 工图琐碎知识点",[49,2809,2470],{"id":2810},"极限与配合-1",[21,2812,2813],{},[24,2814,2815],{},"极限偏差注意大小写",[14,2817,2818],{},[113,2819],{"alt":2820,"src":2821},"image-20240618213718918","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240618213718918.png",[21,2823,2824,2829,2832,2835,2838,2907,2913,2916,2919,2926,2932,2935,2941,2947,2956,2959,2966],{"start":164},[24,2825,2503,2826,2828],{},[350,2827],{},"标准公差确定公差带的大小，而基本偏差确定公差带的位置。",[24,2830,2831],{},"圆角：防止冷却时产生缩孔或裂纹；防止脱模时砂型落砂",[24,2833,2834],{},"钻孔端面：避免钻孔偏斜和钻头折断",[24,2836,2837],{},"凸台、凹坑：减少机械加工量\u002F保证表面接触",[24,2839,2840,2841],{},"球尺寸标注：",[424,2842,2844,2872],{"className":2843},[680],[424,2845,2847],{"className":2846},[684],[686,2848,2849],{"xmlns":688},[690,2850,2851,2869],{},[693,2852,2853,2856,2859,2861,2864,2866],{},[699,2854,2855],{},"S",[699,2857,2858],{},"R",[1018,2860,2583],{"separator":713},[1026,2862,2863],{},"  ",[699,2865,2855],{},[699,2867,2868],{},"ϕ",[705,2870,2871],{"encoding":707},"SR,\\ \\ S\\phi",[424,2873,2875],{"className":2874,"ariaHidden":713},[712],[424,2876,2878,2881,2885,2889,2892,2895,2898,2901,2904],{"className":2877},[717],[424,2879],{"className":2880,"style":1080},[721],[424,2882,2855],{"className":2883,"style":2884},[726,730],"margin-right:0.0576em;",[424,2886,2858],{"className":2887,"style":2888},[726,730],"margin-right:0.0077em;",[424,2890,2583],{"className":2891},[2642],[424,2893,2676],{"className":2894},[1065],[424,2896,2676],{"className":2897},[1065],[424,2899],{"className":2900,"style":2646},[1065],[424,2902,2855],{"className":2903,"style":2884},[726,730],[424,2905,2868],{"className":2906},[726,730],[24,2908,2909],{},[113,2910],{"src":2911,"alt":2912,"style":460},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619000604763.png","image-20240619000604763",[24,2914,2915],{},"螺纹尺寸标记：5g6g表示中+顶径（普通螺纹），其他螺纹只表示中经",[24,2917,2918],{},"特征代号公称直径×导程（P螺距）旋向-公差带代号-长度代号",[24,2920,2921,2922],{},"1：2是画大还是画小——画图：实际，所以是变小了",[113,2923],{"src":2924,"alt":2925,"style":482},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619001044095.png","image-20240619001044095",[24,2927,2928],{},[113,2929],{"src":2930,"alt":2931,"style":460},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619000908279.png","image-20240619000908279",[24,2933,2934],{},"工艺结构：圆角、倒角、退刀槽、砂轮越程槽、钻孔端面、凸台凹坑",[24,2936,2937],{},[113,2938],{"alt":2939,"src":2940},"image-20240619000944127","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619000944127.png",[24,2942,2943],{},[113,2944],{"src":2945,"alt":2946,"style":460},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619001003100.png","image-20240619001003100",[24,2948,2949,2950,2955],{},"区分弹簧垫圈（从左上到右下60度，小于螺母）",[113,2951],{"src":2952,"alt":2953,"style":2954},"https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619001143515.png","image-20240619001143515","zoom:25%;","和普通垫圈（大于螺母）",[24,2957,2958],{},"“（去除材料\u002F不去除材料\u002F任意）方法获得的表面，（双向极限值）R 轮廓，Ra 的上限值是 XXXμm，（16%规则）”",[24,2960,2961,2962],{},"基孔制H，基轴制h。",[113,2963],{"alt":2964,"src":2965},"image-20240619001930420","https:\u002F\u002Fphenthu-1321233386.cos.ap-nanjing.myqcloud.com\u002Fimg\u002Fimage-20240619001930420.png",[24,2967],{},{"title":245,"searchDepth":2768,"depth":2768,"links":2969},[2970],{"id":47,"depth":164,"text":47,"children":2971},[2972,2974,2991,3004],{"id":51,"depth":2973,"text":51},3,{"id":83,"depth":2973,"text":83,"children":2975},[2976,2977,2978,2983,2987,2990],{"id":87,"depth":2768,"text":87},{"id":325,"depth":2768,"text":325},{"id":500,"depth":2768,"text":500,"children":2979},[2980,2982],{"id":504,"depth":2981,"text":504},5,{"id":616,"depth":2981,"text":616},{"id":637,"depth":2768,"text":638,"children":2984},[2985,2986],{"id":647,"depth":2981,"text":647},{"id":667,"depth":2981,"text":667},{"id":2151,"depth":2768,"text":2151,"children":2988},[2989],{"id":2154,"depth":2981,"text":2155},{"id":2282,"depth":2768,"text":2283},{"id":2286,"depth":2973,"text":2286,"children":2992},[2993,2998,2999],{"id":2289,"depth":2768,"text":2289,"children":2994},[2995,2996,2997],{"id":2292,"depth":2981,"text":2293},{"id":2304,"depth":2981,"text":2304},{"id":2307,"depth":2981,"text":2307},{"id":2315,"depth":2768,"text":2315},{"id":2470,"depth":2768,"text":2470,"children":3000},[3001,3002,3003],{"id":2473,"depth":2981,"text":2473},{"id":2503,"depth":2981,"text":2503},{"id":2550,"depth":2981,"text":2550},{"id":2810,"depth":2973,"text":2470},[3006],"大一春夏","2024-06-30 21:02:09",false,"md","\u002Fimg\u002FEngineering_graphics.jpg",{"slots":3012},{},true,"\u002F2024\u002F06\u002F30\u002Fengineering-drawing-notes",null,{"text":3017,"minutes":3018,"time":3019,"words":3020},"15 min read",14.78,886800,2956,{"title":5,"description":16},{"loc":3014,"images":3023},[3024,3025,3026,3027,3028,3029,3030,3031,3032,3033,3034,3035,3036,3037,3038,3039,3040,3041,3042,3043,3044,3045,3046,3047,3048,3049,3050,3051,3052,3053,3054,3055,3056,3057,3058,3059,3060,3061,3062,3063,3064,3065,3066,3067,3068,3069,3070,3071,3072,3073,3074,3075,3076,3077,3078,3079,3080,3081,3082,3083,3084,3085,3086,3087,3088],{"loc":116},{"loc":178},{"loc":188},{"loc":204},{"loc":235},{"loc":242},{"loc":246},{"loc":256},{"loc":285},{"loc":289},{"loc":298},{"loc":305},{"loc":315},{"loc":322},{"loc":355},{"loc":360},{"loc":364},{"loc":368},{"loc":376},{"loc":403},{"loc":410},{"loc":448},{"loc":458},{"loc":480},{"loc":494},{"loc":523},{"loc":532},{"loc":541},{"loc":554},{"loc":573},{"loc":587},{"loc":592},{"loc":601},{"loc":624},{"loc":632},{"loc":644},{"loc":653},{"loc":658},{"loc":663},{"loc":670},{"loc":2163},{"loc":2221},{"loc":2278},{"loc":2349},{"loc":2356},{"loc":2444},{"loc":2450},{"loc":2455},{"loc":2461},{"loc":2467},{"loc":2507},{"loc":2760},{"loc":2764},{"loc":2780},{"loc":2791},{"loc":2797},{"loc":2803},{"loc":2821},{"loc":2911},{"loc":2924},{"loc":2930},{"loc":2940},{"loc":2945},{"loc":2952},{"loc":2965},"posts\u002F2024\u002Fengineering-drawing-notes",[3091],"机械制图","tech","71ALHM0Xt-Xth4Y3jzbXjQ1-kSpkJ9iNZ2VehRk_HRA",[3015,3095],{"title":3096,"path":3097,"stem":3098,"date":3099,"type":3092,"children":-1},"东四——隐秘的角落","\u002F2024\u002F07\u002F07\u002Felec-design-contest-2024","posts\u002F2024\u002Felec-design-contest-2024","2024-07-07 11:44:32",1788854021880]