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1、QJ型起重机减速机类型、特点、应用范围和选用原则(JB/T89051-1999)详细介绍：发布时间：2007-6-30 15:15:15类型、特点、应用范围和选用原则1 类型起重机减速器主要用于起重机的起升、运行、回转和变幅四大机构中。我国目前常用的起重机减速器按齿面硬度分有软齿面、中硬齿面和硬齿面齿轮减速器，按安装方式 分有卧式立式套装式 悬挂套装式等。见下表。起重机减速器齿面型号安装方式级数速比范围备注软齿面ZQ*卧式2850ZHQ*卧式2850圆弧齿轮ZQD卧式365317包括ZQ大速比减速器ZSC*立式314160ZSCA*立式套装314160中硬齿面QJR三支点21031.5QJS三
2、支点340200QJRS三支点340200QJR-D卧式21031.5QJS-D卧式340200QJRS-D卧式340200QJ-L立式316100QJ-T立式套装316100ZQA卧式2850PJ卧式2850小齿轮硬齿面大齿轮软齿面硬齿面QS悬挂套装314100注：*号为机械工业部宣布淘汰产品。2特点起重机减速器因为是间歇式、周期重复工作。减速器发热相对连续型工作的要好些，但是经常起制 动惯性载荷较大。因此轮齿的弯曲强度的安全系数较高，特别是用于起升和变幅机构。直接影响人身和设 备安全更应如此。另外起升机构的减速器输出端多数要求带齿盘接手或卷筒联轴器直接与卷筒相联，它不 仅传递转矩，还要承受
3、较大的径向载荷(相当于卷筒的一端支座)。运行机构的“三合一”悬挂套装式减速器，要求体积小、重量轻、结构紧凑，输出端为内花建孔直 接插在车轮轴上，输入端通过联轴器与制动电机用法兰相联。减速器上端有安装孔通过销轴和缓冲装置固 接在机架上。回转机构常采用摆线针齿减速器或渐开线行星减速器，立式安装，带动开式小齿轮与大齿圈实现回 转。3应用范围起重机减速器除了用于起重机各机构中外，也可用于矿山、冶金、化工、建材、轻工等各种机械的 传动中。多数减速器除给出按起重机工作级别的功率表外，还给出连续型工作的功率表。4选用原则1）起重机减速器在选择时首选应满足机械强度的要求，即工作机械所需的功率应小于等于通过折
4、算的减速器输入轴的许用功率。对用于起重机不同机构要适当乘以系数。不同的工作级别要先折算成M5（或 M6）工作级别的功率值，再查减速器的功率表选取。因不同的减速器在不同时期设计开发的，其承载能力（即 功率表）是用不同计算公式计算的，所以结果也不相同，在选择减速器也就不能采用同一模式，不同类型的 减速器所给出的功率表也不能简单的类比。除齿轮承载功率之外，还要考虑输入、输出轴伸的最大径向力。如果超出给定范围，必须作强度校 核。2）对连续使用的减速器还要满足热功率核算，特别对硬齿面散热性能较差的减速器。3）满足转速的要求，根据原动机的转速和工作机械的转速要求，选配最接近的传动比（最好是实际 传动比，如
5、果未给出实际传动比用公称传动比代替。一般实际传动比与公称传动比的误差：二级减速器在 4%；三级减速器在5%范围内）。如果特殊要求，只好专门配比。4）根据传动装置的安装位置、界限尺寸、联接部位、传动性能要求，确定减速器的结构型式、安 装型式和装配型式。5）根据输入输出的联接方式选择轴端型式。6）考虑使用维修方便等因素，注意注油口和排油口的位置等。QJ型起重机减速机工作条件及型式（JB/T89051-1999）详细介绍：发布时间：2007-6-30 15:17:08QJ型起重机三支点减速器（JB/T89051-1999）1工作条件1）齿轮圆周速度不大于16m/s；2）高速轴转速不大于1000r/m
6、in ；3）工作环境温度为-40+45C,低于零度时应加热到+5C。4）可正反两向运转。2型式1）结构型式QJ型减速器分为R（B）型一一二级、S（C）型一一三级和RS（D）型一一二级安装尺寸，三级速比（二级折轴式），如下图所示。QJ型减速器的结构型式a)R(B)型b)S(c)型 c)RS (D)型2) 装配型式共九种，见下图。_I (Z)0_II (S)-Q_Om(u)IV(M)miV(N)U-ETn n.VI (Y)-ETI(P)TltQJ型减迎器的装配型式3) 安装型式 分卧式W或立式L(V)；在偏转角土 a范围内为卧式，L范围内为立式安装，见下图。卧式安装WQJ型减速器的安装型式a角的度
7、数与传动比有关，当减速器倾斜a时，应保证使中间级大齿轮沾油12个齿高深度。4）支承型式减速器为三支点承式，见下图。立式安装L(V)102放大QJ型减谏器三点支承型式QJ型起重机减速机轴端型式、型号标记(JB/T89051-1999)详细介绍：发布时间：2007-6-30 15:19:24轴端型式高速轴端采用圆柱轴伸，平键联接，输出轴端有三种型式，见下图和下表。 P(T)型：圆柱轴伸平键，单键联接； H(R)型：圆柱轴伸渐开线花键联接； C型：齿轮轴端(仅公称中心距为236560的减速器有这种轴端型式)。心线减Ji嚣中心线QJ型减速器猫出雄襦型式4）P（T型圆拄形轴端b） HOC型花键轴竭c）
8、c型齿艳辅端减速器的输出轴端尺寸参数（mm）公称 中心 距a1KP型C型H型d0L 0mXzDD 1(H7)D 2D 3B 1B 2BEL 1L 2mXzda(h11)Lad5Md6(k)6L 6L 714013048823X15483025640201217014055823X185730306502512200195651053X226935408603016236225801303X561749040135279.5253252545603X278440508703516280250901304X5623212040170302.5271352550755X189550608804016
9、3352801101654X5623212040170339.5308352550755X221155570101004520400340130(140)2006X56348170452604023704032761005X2613570901012050204503651502006X56348170452604293974032761005X3015575100121405525500410170(180)2408X544482001052604824425032781005X3417585120121606025560445190(200)28010X485002001052805705
10、056035781105X38195951401218060256304952202808X26216105160121906525710565250(260)3308X302481201801622065328006152803808X342801352001625065329006703203808X3831215022020280754010007403604508X44360170250203208040型号1）方法1QJ 口 口 一 O 一装型式I出轴端型式配型式,称传动比称中心距（mm）构型式重机减速器标记示例:起重机减速器三级传动，公称中心距旬=测皿，公称传动比丸，装配型式第II
11、I 种，输出轴隔为齿轮轴隔，卧式安装则标记为 减速器QJS56a-50IIICW2）方法2QJ X 出轴端型式-公称传动比公称中心距cmm）一安装型式配型式-结构型式起重机减速器标记示例：起重机二级减速器，装配型H,卧式安装公称中心距a1=900mm,公称传动比25,输出轴端为圆柱轴端, 则标记为：减速器QJBHW900 X 25TQJ型起重机减速机主要技术参数（JB/T89051-1999）详细介绍：发布时间：2007-6-30 15:21:431）中心距以输出级中心距为公称中心距，见下表。 减速器的中心距（mm）a1 （公称中心距）14017020023628033540045050056
12、06307108009001000a 2100118140170200236280315355400450500560630710a 37185100118140170200224250280315355400450500二级总中心距3 0224028834040648057168076585596010801210136015301710三级总中心距3 0331137344052462074188098911051240139515651760198022102）传动比减速器的公称传动比与实际传动比（见下表）的极限偏差二级为4%,三级为5%。QJ型、QJ-D型减速器公称与实际传动比公称中心距
13、代号QJR、 QJR-DQJS、 QJRS、 QJS-D、 QJRS-D公称传动比1012.516202531.54050638010012516020014010.2012.6716.4220.7925.5931.7840.3049.2663.0978.0099.57122.58162.09201.241709.7012.3416.0119.9325.5631.3139.8749.2164.0481.82101.86122.40161.85198.272009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.48125.89161.2819
14、9.662369.8012.3416.0119.9325.5631.6741.1350.2164.9281.1199.64127.78156.53193.9628010.2012.6716.4220.2524.4832.3639.1550.7661.3682.10102.36123.76153.41202.7633510.1912.9615.8020.7425.0030.6340.0048.7662.3583.1999.35127.78158.33193.964009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.04126.48156.6
15、7207.224509.8412.8916.2120.1625.2632.4340.4850.9662.1577.83101.91127.69158.28203.2150010.0212.5016.0120.1425.5231.2540.2248.7061.6481.05101.72121.50156.10205.0656010.2012.6716.4220.2524.4832.3639.1550.7661.3682.11102.36123.76153.41202.7663010.0312.8816.2120.1625.2632.4039.6749.9462.5481.07102.81121.
16、48156.00200.1271010.0112.5016.0120.1425.5230.9140.7749.3762.4482.05101.77128.92157.88206.078009.9512.6716.4220.2524.4832.3840.7549.9563.2277.2898.04126.48156.67207.229009.8412.8816.2120.1625.2632.4339.1149.2464.1281.9799.83125.08160.46206.00100010.0212.5016.0120.1425.5231.2540.2248.7061.6481.05101.7
17、2121.50156.10205.06QJ型起重机减速机外形尺寸(JB/T89051-1999)详细介绍：发布时间：2007-6-30 15:24:23QJR(QJB)型减速器外形尺寸QJR(QJB)减速器的外形尺寸(mm)公称中 心距ala2a02输入轴端LHnKb00 -0.5f0+0.1g(h)9d4e20sre1重量/kgd2(r6)L2140100240225050532012013019016130123201217050591701182882860600386135140215181501538014202608520014034032807074551801952502017
18、018450172327013323617040638808285182102253002020018530172728524028020048048110974584235250335252402263022314100330335236571551101156735255280400252702675027375120590400280680651401387867285340475303203390027447140850450315765801701547990310365530303603310003250616013005003558559017017201130350410600
19、404003911203255418017605604009601002101922127038544567040430391250376262002600630450108011021021561380425495750404804514003770422535507105001210120210243315404505658505053045160042781250490080056013601302502739171249061595050580521800428802806600900630153015025030431910540670106050650622000479783209
20、200100071017101703003384215061074011806072070224055107436012000QJ审QK）型祓*器外形尺寸QJS（QJC）减速器的外形尺寸（mm）公称中心距31a2a3a03输入轴端LHnKb00-0.5f+01 0gd4e30sre2重量 /kgd3L31401007131118405673201201301901613012380121704064170118853732250673386135140215181501545014202489520014010044028607934551801952502017018530172325617
21、023617011852432809285182102253002020018630172726725628020014062038801024584235250335252402275022314803503352361707414511013017352552804002527026900273759565440028020088050110155986728534047530320331060274471129404503152249895511017369903103655303036033118032506125140050035525011056014019301130350410
22、600404003913203255414018505604002801240701402162127038544567040430391500376261602800630450315139580170242613804254957504048045170037704180350071050035515659017027381540450565850505304519004272120047008005604001760100210308417124906159505058052212042880225640090063045019801102103423191054067010605065
23、0622360479782509000100071050022101302503804215061074011806072070265055107428011700QJRS(QJD)型减速器外形尺寸QJRS(QJD)型减速器的外形尺寸(mm)公称中心距31a2A3a03输入轴端LHnKb 00-0 5f+010gd4e20sre1重量 /kgd2L 2140100713111840505298120130190161301232012170506417011885373225060037513514021518150153801420260942001401004402860707440180
24、195250201701845017232701852361701185243280828500210225300202001853017272852842802001406203880974562235250335252402263022314100380335236170741451101156710255280400252702675027375120650400280200880501101387836285340475303203390027447140930450315224989551101547980310365530303603310003250616014105003552
25、501105601401720106035041060040400391120325541801820560400280124070140192212403854456704043039125037626200289063045031513958017021561370425495750404804514003770422535507105003551565901702433153045056585050530451600427812504900800560400176010021027391691490615950505805218004288028066009006304501980110
26、21030431900540670106050650622000479783209200100071050022101302503384207061074011806072070224055107436012000QJ型起重机减速机承载能力、最大允许径向载荷(一)(JB/T89051-1999)详细介绍：发布时间：2007-6-30 15:30:13QJR(QJB)减速器承载能力(工作级别M5)输入轴转速 /(r/min)公称中心距 amm输出转矩/(N m)公称传动比1012.516202531.5高速轴许用功率/kW6001408205.34.33.42.72.11.617013609.0
27、7.25.74.53.52.8200265015.512.49.77.86.24.9236450026.021.016.513.210.58.4280750044.035.027.022.017.613.93351250073.059.046.037.029.023.040021200124.099.078.062.050.039.045030000176.0141.0110.088.070.056.050042500249.0199.0155.0124.0100.079.056060000351.0281.0220.0176.0141.0112.063085000497.0398.0311.
28、0249.0199.0158.0710118000691.0552.0432.0345.0276.0219.0800170000995.0796.0622.0497.0398.0316.09002360001381.01105.0863.0691.0552.0438.010003350001961.01568.01225.0980.0784.0622.07501408206.45.24.13.32.62.0170136010.78.87.05.74.53.4200265019.315.512.19.77.76.1236450033.026.021.016.413.110.4280750055.
29、044.034.027.022.017.43351250091.073.057.046.036.029.040021200155.0124.097.077.062.049.045030000219.0175.0137.0109.088.069.050042500310.0248.0194.0155.0124.098.056060000437.0350.0273.0219.0175.0139.063085000620.0496.0387.0310.0248.0197.0710118000860.0688.0538.0430.0344.0273.08001700001239.0991.0775.0
30、620.0496.0393.09002360001720.01376.01075.0860.0688.0546.010003350002442.01954.01526.01221.0977.0775.010001408207.96.55.24.23.32.6170135013.210.98.77.15.74.4200265026.021.016.212.910.38.2236450044.035.027.022.017.613.9280750073.059.046.037.029.023.033512500122.098.076.061.049.039.040021200207.0165.01
31、29.0103.083.066.045030000293.0234.0183.0146.0117.093.050042500415.0332.0259.0207.0166.0132.056060000585.0468.0366.0293.0234.0186.063085000829.0663.0518.0415.0332.0263.07101180001151.0921.0719.0576.0460.0365.08001700001658.01327.01036.0829.0663.0526.09002360002302.01842.01439.01151.0921.0731.01100033
32、50003268.02614.02042.01634.01307.01037.0QJS(QJC)、QJRS(QJD)减速器承载能力(工作级别M5)输入轴转速 /(r/min)公称中心距 amm输出转矩/(N m)公称传动比40506380100125160200高速轴许用功率/kW6001408201.51.41.00.80.60.50.40.317013602.52.11.61.31.00.80.60.520026503.93.12.51.91.61.21.00.823645006.65.34.23.32.62.11.71.3280750011.08.87.05.54.43.52.72.23
33、351250018.314.611.69.17.35.94.63.74002120031.025.019.715.512.49.97.86.24503000044.035.028.022.017.614.111.08.85004250062.050.040.031.025.019.915.612.45606000088.070.056.044.035.028.022.017.663085000124.0100.079.062.050.040.031.025.0710118000173.0138.0110.086.069.055.043.035.0800170000249.0199.0158.0124.0100.080.062.050.0900236000345.0276.0219.0173.0138.0111.086.069.01000335000490.0392.0311.0245.0196.015
