JBT8905.2-1999起重机用底坐式减速器.pdf

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1、JIC19S21.120.20中华人民共和国机械行业标准JB/T8905.2-1999起重机用底座式减速器Footmountedgearboxesforcranes1999-06-28发布2000-01-01实施国家机械工业局发布JB/T8905.2一1999目次前言1范围·····，·，···················，················································································⋯⋯12引用标准············，··············

2、·····，··············，·······‘·，，⋯二·...........................·········，，··⋯13型式·····，············，········，，···········································，····················，···········，·⋯24基本参数与尺寸············，································，·····················⋯⋯，.·.⋯⋯，·.⋯⋯，45

3、技术要求·····················································，········，，，，····，，，，····，，·······一176试验方法·························································，··························，···············‘一227检验规则，，·，····················································.···············

4、·，·············‘·，·，·····⋯⋯228标志、包装、运输、贮存·...............................................................................⋯⋯23附录A(标准的附录)中心距大于500mm的减速器噪声限值······‘·············，·，··················⋯⋯24附录B(标准的附录)起重机用底座式减速器选用说明·····，·····，·················，·········，·······⋯⋯25JB/T890

5、5.2-1999前言本标准是对ZBJ19011-88的修订。本标准与被修订的标准在以下重要技术内容上有所改变:1.齿轮情度由原标准的7级改为8-8-7级。2.补充了减速器的实际传动比。本标准是起重机用减速器系列标准的一部分，该系列标准包括:JB/T8905.1-1999起重机用三支点减速器JB/T8905.2-1999起重机用底座式减速器JB/T8905.3-1999起重机用立式减速器JB/T8905.4-1999起重机用套装式减速器本标准自实施之日起，同时代替ZBJ19011-880本标准的附录A和附录B都是标准的附录。本标准由全国起重机械标准化技术委

6、员会提出并归口。本标准起草单位:机械工业部北京起重运输机械研究所。本标准主要起草人:赵光德、李鹏。中华人民共和国机械行业标准JB/T8905.2一1999起重机用底座式减速器代替ZBJ19011-88FootmountedgearboxesforcranesI范围本标准规定了QJR-D,QJS-D和QJRS-D三个系列的底座式斜齿圆柱齿轮减速器的型式、基本参数、尺寸和技术要求。本标准规定的减速器适用于起重机的各有关机构，也可用于运输、冶金、矿山、化工、轻工等各种机械设备的传动机构中。其工作条件应符合下列要求:a)齿轮圆周速度不大于16m/s;b)高速轴转

7、速不大于1000r/min;c)工作环境温度为一。℃一十45`C;d)可正、反两向运转。2引用标准下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。GB191-199。包装储运图示标志GB/T1031-1995表面粗糙度参数及其数值GB/T1095-1979平键键和键槽的剖面尺寸GB/T1184-1996形状和位置公差未注公差值GB/T1356~一，988渐开线圆柱齿轮基本齿廓GB/T1357-1987渐开线圆柱齿轮模数GB/T1801-19

8、79公差与配合尺寸至500mm孔、轴公差带与配合GB/T3478.1-1995圆