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《JBT7512.2-1994圆弧齿同步带传动带轮.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中华人民共和国机械行业标准JB/T7512.2-94圆弧齿同步带传动带轮1主肠内容与适用范围本标准规定了圆弧齿同步带传动中带轮的型号、轮齿尺寸及极限偏差、带轮尺寸及极限偏差、带轮的形位公差和标记。本标准适用于一般工业用圆弧齿同步带传动中的带轮。2引用标准GB11357带轮材质、表面粗糙度及平衡3带轮柑型和轮齿尺寸带轮的槽型为3M,5M,8M,14M和20M等五种。3.1轮齿的形状和尺寸圆弧齿同步带传动的带轮轮齿形状、基本尺寸及极限偏差见图1和表10表1圆弧齿同步带轮轮齿节距齿槽圆弧半径齿顶圆角半
2、径齿槽宽两倍节顶距齿形角槽型I.,Oh,NRrtS282W3M31.280.910.26^-0.351.900.762-14。5M52.161.560.48^-0.523.251.144-l4。8M83.542.570.78^-0.845.351.372-14。14M146.204.651.36^-1.509.802.794交吕14`20M208.606.841.95--2.2514.804.320x14。3.2节距偏差值带轮相邻齿之间的节距偏差及在900弧内的累积偏差见表2,中华人民共和国机械
3、工业部1994一10一25批准1995一10一01实施JB/T75122一94表2节距偏差】11】11带轮外径节距偏差do任意两相邻齿9。。弧内取积成25.40士0.05>25.40~50.08士0.08>50.0多一101.60士0.10>101.60~177,80士0.03士0.13>177.80~304.80士0,15>304.80~508.00士0.18>508,00工0204带轮尺寸及极限偏差4.1带轮宽度带轮的宽度尺寸见图2和表3。图2表3带轮宽度尺寸们二们1槽型3M5M8M14M2
4、0M轮宽代号带轮宽度bl石bf歼瓦从阮杯b,一瓦67,311.0一!1910.314.010,314.0l516320016320,02021325,021728.0一2526330,026733.03031.335.031.738,032404041.345.04174804250一5052.75905558666062.769.070727790738l78.585449JB/T7512.2一94续表3】11nl槽型3M5M8M14M20M轮宽代号带轮宽度瓦从br从坑拭阮城一石8588795
5、.0899789.5102100104112104.5!117一1151201281205{134130135143136150150155163158172170175183178192230!2352542902983143401348364月.2带轮的直径4.2,1带轮的齿数、节径和外径带轮的齿数、节径和外径见图3和表4一1一表4一5。图3表4一13M带轮的基本尺寸刀1们二节径节径外径节径外径节径外径齿数夕限一齿数dddodd。dd。}一一’109.558.7。一l716.231547}2
6、422.9222.16}3129.6028841110.5097、一l817.1916.‘3}一2523.8723.113230562980l211461o.70}1918.1417.38!2624.8324,0733315130.75l312.4111.65}2019.1018.342725.7825.o21}34324731.71l413.3712.61}一一2120.0519‘292826.7425.983533.4232。661514.3213.5。一2221.0120.252927.6
7、926.933634.3833.621615.2814.52一2321.9621.203028,6527.893735.333457450Js/T7512.2-94续表4-1nln门节径外径节径节径外径外径齿数ME一齿数一齿,一,径ddo一Q}ddodo一;3836.2935.53一6763.9863.22一9691,6790.91一、25119.37118.603937.2436.48一6864.9464.17一9792.6391.87一126120.32119.564038.2037.44一
8、6965.8965.13一9893.5892.82一127121.28120.514139.1538.39一7066.8566.0。一9994.5493.78一,28122.23121.474240.1139.35一7167.8067.0、一10095.4994.73一129123.19122.424341.0640.30一7268.7567.9。一10196.4595.69一,30124.14123.384442.0241.25一:369.7168.95一10297.4096.64一13112
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