JB/T 8905.2-1999 起重机用底座式减速器

ICS21.120.20

J19

JB/T8905.2999－－－1

起重机用底座式减速器

Footmountedgearboxesforcranes

1999-06-28发布2000-01-01实施

国家机械工业局发布

JB/T8905.2－－－－1999

目次

前言

1范围··························································································································································1

2引用标准··················································································································································1

3型式··························································································································································2

4基本参数与尺寸······································································································································4

5技术要求················································································································································17

6试验方法················································································································································22

7检验规则················································································································································22

8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··········································································25

I

JB/T8905.2－－－－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．齿轮精度由原标准的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—88。

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。

II

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

代替ZBJ19011—88

Footmountedgearboxesforcranes

1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)高速轴转速不大于1000r/min；

c)工作环境温度为–40℃~＋45℃;

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—1990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—1988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—1979公差与配合尺寸至500mm孔、轴公差带与配合

GB/T3478.1—1995圆柱直齿渐开线花键模数基本齿廓公差

GB/T3478.2—1995圆柱直齿渐开线花键30°压力角尺寸表

GB/T3811—1983起重机设计规范

GB/T5903—1995工业闭式齿轮油

GB/T6404—1986齿轮装置噪声声功率级测定方法

GB/T9439—1988灰铸铁件

GB/T10095—1988渐开线圆柱齿轮精度

GB/T13306—1991标牌

GB/T13384—1992机电产品包装通用技术条件

JB/T7929—1995齿轮传动装置清洁度

国家机械工业局1999-06-28批准2000-01-01实施

1

JB/T8905.2－－－－1999

JB/T9050.3—1999圆柱齿轮减速器加载试验方法

3型式

3.1结构型式

QJ–D型减速器分为R型（二级）、S型（三级）和RS型（二、三级结合型）三种。

3.2装配型式

装配型式共九种，见图1。

图1装配型式

3.3轴端型式

高速轴端采用圆柱形轴伸，平键联接，输出轴端有三种形式（见图2和表1）:

a)P型：圆柱形轴伸，平键、单键联接；

b)H型：圆柱形轴伸，渐开线花键联接；

c)C型：齿轮轴端（仅名义中心距为236~560mm的减速器具有这种轴端型式）。

图2输出轴端型式

2

JB/T8905.2－－－－1999

表1

名义

P型C型

中心距

KD1

a1d0L0m×zD(H7)D2D3B1B2BEL1L2

1401304882

1701505582

20017565105

236200801303×561749040135279.525325254560

280220901304×5623212040170302.527135255075

3352601101654×5623212040170339.530835255075

130

4003102006×5634817045260402370403276100

（140）

4503351502006×5634817045260429397403276100

500370170（180）2408×54448200105260482442503278100

190

56041028010×48500200105280570505603578110

（200）

630450220280

250

710510330

（260）

800570280380

900640320380

1000700360450

名义

H型

中心距

Kdad6d7

a1m×z(h11)La(k6)L6(k6)L7d5ML8

1401303×1548354015507825612

1701503×1857355020608230612

2001753×2269406025709040816

2362003×2784457030859550816

2802205×189555803510012560816

3352605×221156010040120135701020

4003105×261357512045140155901020

4503355×3015580140501601651001225

5003705×3417590160551801801201225

5604105×38195100180552001901401225

6304508×26216110190602222051601225

7105108×30248125220602542201801632

8005708×34280140250602862352001632

9006408×38312155280703182602202040

10007008×44360175320753662852502040

3

JB/T8905.2－－－－1999

3.4型号表示方法

QJ–D

输出轴端型式

装配型式

公称传动比

名义中心距（输出级中心距）

带底座

结构型式

起重机减速器

标记示例：

起重机带底座的二级减速器，名义中心距a1=560mm，公称传动比i=20，第Ⅳ种装配型式，轴端

型式为P型的，标记为：

减速器QJR–D560–20ⅣPJB/T8905.2—1999

4基本参数与尺寸

4.1中心距

减速器以输出级中心距为名义中心距，其数值应符合表2的规定。

表2mm

a1(名义中心距)1401702002362803354004505005606307108009001000

a2100118140170200236280315355400450500560630710

a37185100118140170200224250280315355400450500

二级总中心距a0224028834040648057168076585596010801210136015301710

三级总中心距a033113734405246207418809891105124013951565176019802210

4.2传动比

减速器公称传动比与实际传动比应符合表3中规定的数值，其极限偏差为：二级减速器不大于

±4%，三级减速器不大于±5%。

4

表3QJ–D型减速器实际传动比

代号

公

、

称QJR–DQJS–DQJRS–D

传

名义中动

心距a比

11012.516202531.540506380100125160200

mm

14010.2012.6716.4220.7925.5931.7840.3049.2663.0978.0099.57122.58162.09201.24

1709.7012.3416.0119.9325.5631.3139.8749.2164.0481.82101.86122.40161.85198.27

2009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.48125.89161.28199.66

2369.8012.3416.0119.9325.5631.6741.1350.2164.9281.1199.64127.78156.53193.96

JB/T8905.2

28010.2012.6716.4220.2524.4832.3639.1550.7661.3682.10102.36123.76153.41202.76

33510.1912.9615.8020.7425.0030.6340.0048.7662.3583.1999.35127.78158.33193.96

－－－－

4009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.04126.48156.67207.22

1999

4509.8412.8916.2120.1625.2632.4340.4850.9662.1577.83101.91127.69158.28203.21

50010.0212.5016.0120.1425.5231.2540.2248.7061.6481.05101.72121.50156.10205.06

56010.2012.6716.4220.2524.4832.3639.1550.7661.3682.11102.36123.76153.41202.76

63010.0312.8816.2120.1625.2632.4039.6749.9462.5481.07102.81121.48156.00200.12

71010.0112.5016.0120.1425.5230.9140.7749.3762.4482.05101.77128.92157.88206.07

8009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.04126.48156.67207.22

9009.8412.8816.2120.1625.2632.4339.1149.2464.1281.9799.83125.08160.46206.00

100010.0212.5016.0120.1425.5231.2540.2248.7061.6481.05101.72121.50156.10205.06

5

JB/T8905.2－－－－1999

4.3齿轮基本齿廓

减速器齿轮基本齿廓应符合GB/T1356的规定。

4.4齿轮模数和螺旋角

齿轮模数mn应符合GB/T1357的规定（见表4）。

齿轮的螺旋角为9°～13°。

表4mm

mn1.251.522.533.5456

mn78101214161820—

4.5外形尺寸和安装尺寸

QJR–D减速器的外形尺寸和安装尺寸见图3和表5。

QJS–D减速器的外形尺寸和安装尺寸见图4和表6。

QJRS–D减速器的外形尺寸和安装尺寸见图5和表7。

图3QJR–D减速器外形尺寸

6

表5mm

名义中心高

外形尺寸输入轴端地脚安装尺寸

中心距

a2a02孔数AB1nG1e1

a1LHBhNd2l2SS1S2S3CP（个）

14010024049430522014012022501753801902218643019025172115

17011828857736525017013528602054602302518651321527197138

20014034066442527020018032802305502752518660025025222165

23617040679649733023621038802806603302823671630030265195

280200480925585360280235481103107803903023684534033303230

JB/T8905.2

33523657111006954303352555511037094045035276100640035362280

400280680138083051040028565140450110055040276119549050422325

－－－－

45031576514629305904503108017049012401000600403381350550554813701999

50035585516221030640500350901705401390112067045338151062060531415

560400960182211607105603851002106001550125075050398169069070596460

6304501080203713007706304251102106501750141085055398190577080666520

7105001210227814608607104501202107401960158095060458213086885744585

800560136025381640980800490130250830219517701060654582390980100824650

90063015302860184011009005401502509502480200012007052827001130110930740

100071017103200204012001000610170300105027502220132075528302012201351040815

7

JB/T8905.2－－－－1999

图4QJS-D减速器外形尺寸

图5QJRS-D减速器外形尺寸

表6mm

名义中心高

外形尺寸输入轴端地脚安装尺寸

中心距

a2a3a03孔数AB1nG1e1

a1LHBhNd3l3SS1S2S3CP（个）

1401007131156030522014012018401754502002218649619025172117

1701188537365236525017013522502055352352518658821527197138

20014010044075042527520018028602306352752518668625025222165

23617011852489649733023621032802807503302823681630030265195

280200140620104558536028023538803109003903023696534033303230