JB/T 2486-1984 圆锥直齿渐开线花键

J18中华人民共和圜机械行业标准JB/T2486-1984员锥直齿渐开线花键1984-12-28发布198507-01实施中华人民共和国机械工业部发布中华人民共和国机械行业标准JBT2486-1984圆锥直齿渐开线花键代替JB248678本标准规定内花键齿形为直线、外花键齿形为45°标准压力角渐开线、模数由0.5至1.5mm和锥度1:15的圆锥直齿渐开线花键。本标准是根据GB3478.1-83《圆柱直齿渐开线花键模数基准齿形公差》和GB3478.2--83《圆柱直齿渐开线花键尺寸表》制订的。术语定义和代号1.1花键的术语定义和代号按GB3478.1--83的规定。1.2圆锥花键专用的术语定义和代号按表1规定。表术语代号规定的与圆锥花键轴线垂直的截面。截面上的花键参数、尺寸及公差应符合基面GB3478.1—83的规定。基面的位置在外花键小端并与内花键的基面重合。圆锥表面与通过花键轴线截平面的交线内花键齿槽角B内花键齿槽上两相邻齿侧的夹角内外花键小径素线斜角日内外花键小径素线与花键轴线的夹角。2计算公式花键基面上尺寸的计算公式按表2规定,有关尺寸见图1、图2。Ev和E(实际)sy和(实际外花键图1机械工业部1984-12-28批准1985-0701实施JB/T2486-1984基面图2表2代公式或说模数齿数标准压力角Q=45分度圆直径基圆直径Dmacosa D周节内花键大径基本尺寸m(z+1.2)内花键大径下偏差内花键大径公差从m12、m13和m14中选取。(见注①)内花键小径基本尺寸Damx+2CF(见注②)内花键小径极限偏差见表9至表13基本齿槽宽E0.5丌m作用齿槽宽最小值0.5丌m实际齿槽宽最大值E、m+(T+A)实际齿槽宽最小值作用齿槽宽最大值外花键作用齿厚上偏差取esv=+(T+λ)(按基本偏差K)外花键大径基本尺寸m(z+0.8)外花键大径极限偏差见表9至表13外花键渐开线起始圆直径最大值D0.5m-05es。2,(05D2+05Dmaotan ap外花键小径基本尺寸m(z-1.2)外花键小径上偏差+(T+A )/tan45外花键小径公差从I12、m13和m4中选取JB/T2486-1984续表2项目基本齿厚S0.5丌m作用齿厚最大值s+实际齿厚最小值Smax( T+A实际齿厚最大值作用齿厚最小值S +d齿形裕度内花键齿槽角内外花键小径素线斜角tan30(z+08)注:①IT是标准公差,数值见GB1800—79《公差与配合总论标准公差与基本偏差》。②计算D1时,其中Dn公式中的es取0③(T+λ)计算方法见GB3478.1-83,数值见本标准。3尺寸系列花键基面上的尺寸系列按表3规定。表3mm1251524.641.049,217443.552.266.846.019438858.230.656.067.236.648.861.073.279,24公差等级与配合41本标准采用GB3478.1-83中的6、7级公差,选用6H6k和7Hk配合类别。4.2齿槽宽、齿厚公差带分布见图3。JB/T2486-1984齿槽宽齿厚图3图中:7——加工公差λ——综合公差5检验方法5.1圆锥直齿渐开线花键的齿槽宽和齿厚公差一般用综合检验法进行检验。52内花键用锥形全齿塞规检验,塞规大端制有台阶(见图4),台阶高度h按作用齿槽宽最大值与作用齿槽宽最小值的差值(E灬-E-)计算。当塞规伸入內花键时,内花键大端面应在台阶高度范围内。5.3外花键用锥形全齿环规检验,环规内花键小端制有台阶(见图5),台阶高度h按作用齿厚最大值与作用齿厚最小值的差值(S灬、-S)计算。当环规套在外花键上时,外花键小端面应在台阶高度范围内。环规齿形可做成直线。塞规环规图46总公差(7+)综合公差λ、周节累积公差F和齿形公差f(6级公差见表4,7级公差见表5,齿向公差FB见表6)JB/T2486-1984表4公差+AAF,后7+AAF。+AAF+AAF后+AAF170293828813243298935483196375232102405633712938288132442990354931973853321034157347229392882334529913650319839553210441593438723040288333462991375131983956321054260347330412883344730923752319957321064361344474314228853548309338543110141593310744633448753243288636503095395631102426133109456635527632442887375230964058321036333110476835表50.7511343544412947624714252684915455745116459805311443554413048634714452704915556765116560825114445645131496447145537149156577851166618354115445745132496647146547349158587952168628554401164558451335067471475574491595981521696387544411846604513551694714956775016161845217265905548194762|45137537148151588050163628753174|66945552121486345139547448153598250165649053176689756注:表4和表5中的单项公差供设计刀量具参考,不作为产品验收的依据。表6花键长度mm45公差值6级111213131414151516161717m「7级「18120_21223232412512352287参数标注在零件图样中,应给出制造花键所需的全部参数、尺寸和公差,列出花键参数表(见表7和表8),必要时可画出齿形图。参数表中的项目可按需要增减。JB/T2486-1984表7内花键参数表模数实际齿槽宽最大值En齿数作用齿槽宽最小值Em齿槽角实际齿槽宽最小值E分度圆直径作用齿槽宽最大值公差等级和配合类别标准号配对花键图号外花键参数表模数作用齿厚最大值齿数实际齿厚最小值S标准压力角作用齿厚最小值分度圆直径实际齿厚最大值公差等级和配合类别渐开线起始圆直径最大值大径标准号小径D配对花键图号8尺寸表尺寸表见表9至表13,内花键齿槽角β、内外花键小径素线斜角θ见表14。表9m=0.5E=S=Emn=Sn=0.57m=0.785m分基内化键外花键齿度圆大小径实际齿槽宽实际齿槽宽作用齿槽宽基面至大径D小/用齿厚作用齿厚实际齿厚/渐开//圆\直径基本极限m=Em+(7+A)Em=E-+AEm=E-m+距离基本极限/f/最大值最小值最大值起始圆数/直最大值最小值最大值小端面D直径最数径径=S+es大值DD尺寸偏差mH6m|m考」尺寸偏差|O3417012.021760|661/0000.85532|16.011.3166015610.8550.8980.8140.8280.8260.8553160.8560.8990.81408280.8270.8561240/015400855089808140828082608551551323618.012.7318601760.85B4/00xo)164085608990814082808270856165134174008708908140890880856175113640200141420601961008人085709000.8150.8290.828085638190134419.6018614|19408400.85709000.8150.8290.8280.85618513800.8580.9010.8150.8300.8280.856420.4019.400.8580.9010.8150.8300.8280.8561951400.084220155626021.619030.8160.8310828057424021.40083909060088389154注:表9至表13中内花键大径D和外花键小径D的偏差及公差按表2规定。表10m=0.75E=S=Em=Snn=0.5丌m=1.178mm分基内外花齿\度圆\大小径实际齿槽宽实际齿槽宽作用齿槽宽基面至大。径最大值最小值/作用齿厚作用齿厚实际齿厚/渐开维/鸢,数/直直最大值径径径基本极限EEm(A)E=Em+E≠E打距离42本/极限径最大值最小值最大值起始圆直径最数DD尺寸偏差6H7H6HmH⑥参考/尺寸偏差|D大值6k 7k 6 7K DE322401697|2490|2341123130712012121260424603112s1302o2s12)12012321324|25.518.0326.4024911.2591.3081.2101.2261.2271.260426.100246012591.3081.2101.261.2271.260247634+0.0843627.01909279026411.2601.3091.21112271.2271.260427.60-0.08426.101.2601.3091.2111.2271.2271.26026263628520.15294027.9127.601.2611.3101.21.2271281.2612776384030021.2130.9029411.2611.3111.2121.2281.2281.261530.6029.101.2611.3111.2121.2281.2281.26129.2640433.023.3333903241+0.1001.2631.3131.2131.291.2281.2625336032.101.2631.3131.2131.291.2281.26232.260.1004836025463690354101.2641.315.2141.2311.2281.26236.6035.101.264|1.3151.2141.2311.2281.26235.2611 m=l E=S=Emi=Si=0.57 m=1.571m分基内化键外花键齿度圆大小径实际齿槽宽实际齿槽宽作用齿槽宽基面至大径圆\直径基本极限m=Em+(7+A)Em=E-+AEm=E-m+距离基本极限/f/最大值最小值最大值起始圆D最大值最小值最大值小端面D小/用齿厚作用齿厚实际齿厚/渐开//数/直直径最数径径=S+es大值DD尺寸偏差mH6m|m考」尺寸偏差|O3232.02263|33203122166017131.6061.6231.6251.6615328030.801.601.7131.6061.6231.625310232343402404352033.221.6611.7151.6061.6231.6261.663534.8032801.6611.7151.6061.6231.6261.663330234363602546372035216621.7161.6071.6241.6261.66334801.66217161.60716241.6261.66335.01363838026.87|392037.211.6621.7171.6081.625|1.6261.66363836801.6621.7171.6081.6251.6261.66337.013800.1604040.0282841.2039211.6631.7181.6081.6261.6261.663640.8038.801.6631.718160816261.62616339.01404444031.11452043.211.6641720160916271626166648042.801.6641.7201.6091.6271.6261.664430144848033.9449.2047.211.6651.7221.6101.6291.6261664488046.801.6651.7221.6101.6291.6261.66447.0148表12m=1.25E=S=E、m=Sm=0.5mm=1.963mm分内花键外花键圆小径实际齿槽宽实际齿槽宽作用齿槽宽基面至大径小作用齿厚作用齿厚实际齿厚渐开线/鸢圆\真径基本极限Em=Em+(7+A)Eam=Em+Em=Em距离基本极限//最大值最小值最大值起始圆大D数/直最大值最小值最大值小端面直径最数径径=StesSDa|2尺寸偏差「6m6m6m(考尺寸偏差"67k6kk61k1a-23240.0282841.503902205921172.000201820222062641.0038502059211720001201820222062|3877323442530.05440041.52206021820n20920220626|43s50041.002.0602182.0011201920222.06241.2734+0.16036450318246.5044.022021920220o01202|20626|460003s0206121920220n0l20202|4371363847533594900465220612.1212.00220212.0222.063648.50600206121212002|20212022206346273848600424361.50590/0.904050.0353651.5049.022.1222.0032.022202220636|510048.50206221222.0032.0222022206348.74055.0388956505401421242.0042.02420232.0636|56000.502.0642.1242.004|20242.023206353.762052126200205120232046|60109030610103130460806414805265.04596665064012.0662.1282.07202720232.064666006350206121282007202720232064637652表13m=1.5E=S=Eymi=Smin=0.5丌m=2356mm分基内化键外花键齿度圆大小径实际齿槽宽实际齿槽宽作用齿槽宽基面至大径D最大值最小值最大值小端面D小/用齿厚作用齿厚实际齿厚/渐开//圆\直径基本极限m=Em+(7+A)Em=E-+AEm=E-m+距离基本极限/f/最大值最小值最大值起始圆数/直直径最数径径=S+es大值DD尺寸偏差m6m6m参考)尺寸偏差|2「67k67k16k7k1D32|480339498064821+01602458252023962452418246164900160462012458252023962415|2418246146523234|51.0360652:049.82024592.5212.39724162.4182.461652.2049.2024592.5212.397241624182.461149.52343654038:1855052.8224602.5232.39724172.4192461655205220246025232397241724192463857040.315880558224612.5242.39824182.4192.462658.205520246125242398|2418|24192.462238406001424361805882+0190246225252399241924192462661.205820246225252399241924192462580.19046676780648202.4632.5282400242124192024632528240012421241924636452448|72.05091738070.8224652.5302401242224202.464673.2070.2024652530240124222420246470.52485278.0551579.80768124662.5322.403242424202.464679.206.2024662532240324242420246476.5152JB/T2486-1984表14内花键齿槽角内外花键小径素线斜角84°2231°47′34″84°4221″194858″1948′20″85°15471°48′39″85°30′1°48′56″85°5433″1°49′26″86°15′194951″86°3218″1°50′13″附加说明本标准由机械工业部标准化研究所提出并归口本标准由长春汽车研究所、南京汽车制造厂负责起草。本标准主要起草人:马文钟黄利群a9H中华人民共和国机械行业标准圆锥直齿渐开线花键JB/T2486-1984机械科学研究院出版发行机械科学研究院印刷(北京首体南路2号邮编10004)开本880×12301/16印张7/8字数20,0001985年6月第一版1985年6月第一次印刷印数1-500定价500元机械工业标准服务网:htp://www.jb.ac.cn