JB/T 7512.1-1994 圆弧齿同步带传动 带

中华人民共和国机械行业标准JB/T7512.1-94圆弧齿同步带传动带1主题内容与适用范感本标准规定了圆弧齿同步带传动中带的型号、带齿尺寸、节线长度、带宽及其极限偏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。2带型和带齿尺寸带的型号为3M5M&M14M和20M等五种。带齿的形状和尺寸见图1和表1。图1圆弧齿同步带齿形表1圆弧齿同步带带齿尺寸带型3M8M14M20M节距P5814齿高h1.222.063.386.02齿顶圆角半径r0.B71.492.464.506.50齿根圆角半径r0,24~0.300.40~0.440.64~0.761.20~].351.77~2.0齿根厚s1.783.055.159.4014齿形角2814°14°14°带高h2.403.806、0010.0013.203带宽31带宽尺寸见表2。中华人民共和国机碱工业部1994-10-25批准1995-10-01实施442JB/T7512.1-94表2带宽尺寸r带型带宽代号3M5M8MⅠ4MOM标准带宽91515152525303030404040405055707085851001001151301301501701701702302302902903403.2带宽极限偏差见表3。表3带宽极限偏差mm节线长L带宽<800≥800~1650>1650≤6±0.4±0.4>6~10士0.6±0.6>10~35士0.8±0.8±0.8>35~50士0.8±1.2±1250~65±12士1.2±1.6>65~75土1.2土16土1.6>75~100±1.6±1.6士2.0>100~180土2.4土2.4土2.4>180~290±4.8土4.8290~340±5.6±5.64节线长度及其极限偏差41带的标准节线长度见表4表5、表6表7和表84.2带的节线长度极限偏差见表9443JB/T7512.1-94表43M圆弧齿同步带长度系列节线长Lp节线长LP长度代号齿数长度代号齿数mmmm1202040?33911314414448384384128150504204201401771775945945915319219264486486162201201501167207207695375371792252257556456418825225284633633211264264887507502302762769293693631230030010018001800600表55M圆弧齿同步带长度系列节线长LP长度代号齿数长度代号节线长齿数tnm29529559645645129300300606701343206469569513935035070710710142375375757407401484004008008001604204208483083045045084584516947547517250050010087087017452104890890178550550110900900180560560112920920184565565113930930186600600120940940188615615123950950635635127975975195444JB/T7512.1-94续表5节线长L长度代号齿数节线长LP长度代号齿数10001000200138013802761025102520514201420284I0502101595159531911251125225180018003601145114522918701870374127012702542000200040012951295259235023504701350135070表68M圆弧齿同步带长度系列节线长Lp长度代号节线长LP齿数长度代号齿数mm416416521248124815642442453128012801604804806013931393174560560701400140017560060075142414241786406401440144018Q7207201600160020076076095176017602208008001001800l800225840840105200020002508568561072240224028088088011022722272284920920115240024003009609601202600260032510001000I252800280035010401040130304830483811056105613232003200400108010801353280328011011201120140360036004501200120015044001400550445JB/T7512.1—94表714M圆弧齿同步带长度系列节线长LP节线长LP长度代号齿数长度代号齿数nm9669666924502450119611962590259018514001400100280028002001540154011031503150221610161011533603360240177817?812735003500l890l890135385038502732002200214343264326210021001504578457832721982198157495649552310231016553205320380表820M圆弧齿同步带长度系列节线长LP节线长LP长度代号齿数长度代号齿数m的mm2000000100554002702500250012556005600280340034001705800580029038003800I906000600030042004200210620062003104600460023064006405000500025066000066033052005200260表9节线长度极限偏差mn节线长范图中心距极限偏差节线长极限偏差‖节线长范围中心距极限偏差|节线长极限偏差≤254±0.20±0.40>1778~2032±0.46±0.92>254~381士0.23±0.46>2032~2286±0.48士0.96>381~508士0.25±0.50>2286~2540土0.51508~762±0.30±0.60>2540~2794±0.53±1.06>762~1016±0.33±0,66>2794~3048士0.56士1.12>1016~1270±0.38土0.763048~3320士0.58士1.161270~1524士0.41士0.823320~3556土0.61士1.22>1524~1778土Q.43±9,863556~3810士0.64士1.28446JBT7512.1-94续表9Imm节线长范围中心距极限偏差节线长极限偏差节线长范围中心距极限偏差节线长极限偏差3810~4064士0.66±1.325334~5588±0.821.64>4064~4318±0.69±1.38>5588~5842士0.851.70>4318~4572土0.71±1.42>5842~6096士0.88士1.76>4572~4826士0.73±1.46>6096~6350土0.91士1.82>4826~5008±0.76士1.526350~6604±0.94士1.88>5008~5334±0.79士1.58>6604~6858±0.97士1.945标记5.1圆弧齿同步带的标记由长度代号、带型带宽代号和标准号组成。长度代号与带型之间用“”连接5.2标记示例节线长度1120mm,带型8M,带宽30mm的圆弧齿同步带:1120-8M30J/T7512.1-94附加说明:本标准由机械工业部提出。本标准由机械工业部机械标准化研究所归口。本标准由机械部机械标准化研究所扬中特种胶带厂、上海工程技术大学哈尔滨工业大学、无锡县太湖同步带轮厂负责起草本标准主要起草人秦书安、曹助家、韩永春、周纪龙、冯加英。47