回转支承轴承相关技术.doc

回转支承轴承的相关技术表回转支承选型计算方法1静态选型：静态参照载荷Fa和M的计算方法单排四点接触球式单排四点接触球式回转支承的选型计算分别按承载角45和60两种情况进行。I、a45、a60Fa(1.225Fa+2.676Fr)fsFa(Fa+5.046Fr)fsM1.225MfsMMfS然后在曲线图上找出以上两点，其中一点在曲线以下即可。单排交叉滚柱式Fa(Fa+2.05Fr)fsMMfs双排异径球式对于双排异径球式回转支承选型计算，当Fr10Fa时，Fr忽略不计。当Fr10Fa时，必须考虑滚道内压力角的变化，其计算请与我们联系。FaFafsMMfs三排滚柱式三排滚柱式回转支承选型时，仅对轴向滚道负荷和倾覆力矩的作用进行计算。FaFafsMMfs2动态选型：对于连续运转、高速回转和其它对回转支承的寿命有具体要求的应用场合，请与我公司技术部联系。3螺栓承载能力验算：1）把回转支承所承受的最大载荷(没有乘静态安全系数fs)作为选择螺栓的载荷；2）查对载荷是否落在所需等级螺栓极限负荷曲线以下；3）若螺栓承载能力不够，可重新选择回转支承，或与我公司技术部联系。表1应用场合 fsfL原则上，必须以作用在支承上的最大载荷做为静态计算值，这个载荷必须包括附加载荷和试验载荷。 没有被列入表中的应用场合，可以参照表中与其相类似的工作条件和应用，选取静安全系数fL。 *）上回转式塔机 M=空载时的反向倾覆力矩 M=幅度最大时的倾覆力矩 *）对于静安全系数fs取1.45的应用场合，因平均负载较高和繁重的工作场合，应优先选择多排滚道式回转支承。 浮式起重机（货物负载） 汽车起重机（货物负载） 船用甲板起重机（抓斗） 焊接设备 工作台（连续运转） 1.101.0塔式起重机 上回转*Mf0.5M1.251.00.5MMf0.8M1.15Mf0.8M1.25下回转 1.0回转式起重机（货物负载） 造船厂起重机 装船机/卸船机 1.15冶金起重机 1.45*1.5汽车起重机（抓斗式或处理繁重工作） 回转式起重机（抓斗或吸盘） 桥式起重机（抓斗或吸盘） 浮式起重机（抓斗或吸盘） 1.7斗轮挖掘机 堆取料机 悬臂输送机 2.15近海起重机 根据特殊的标准 铁路起重机 甲板起重机（货物负载） 1.00在这些应用场合，工作条件变化相当大，比如对于不经常回转的情况下使用的回转支承，只要求静态校核。对于连续回转和间歇式情况下使用的回转支承，将需要进行动态寿命计算。 堆料机 输送车 1.10绳索式挖掘机/索斗 1.25小于等于1.5m3液压挖掘机 1.45大于1.5m3液压挖掘机 根据特殊的标准 钢包回转台 1.75注：fL为动态安全系数，它必须结合动态承载曲线使用（动态承载曲线不包含在此样本中）。它来源于经验和试验，是基于最大工作载荷情况下的一个参考值、若需根据寿命选择回转支承时，请与我公司技术部门联系。 安装螺栓副回转支承所用螺栓尺寸应符合GBT5782-2000和GBT5783-2000的规定，其强度等级不低于GBT3098.1-2000规定的8.8级，并根据支承受力情况选择合适的强度等级。螺母尺寸应符合GBT6170-2000和GBT6175-2000规定，其机械性能应符合GB3098.2-2000规定。垫圈尺寸应符合GBT97.1-1985和GBT97.2-1985，需调质处理。不得使用弹簧垫圈。螺栓拧紧方式按主机设计规定，应保证一定的预紧力，除非特殊规定，一般预紧力应为螺栓屈服极限的0.7倍。拧紧时允许在螺纹处少许涂油。预紧扭矩或预紧力见表4。螺栓夹紧长度LK5d（d螺栓直径）。表4预紧扭矩或预紧力注：螺栓规格（GB/T5782-200GB/T5783-200）安装孔直径（mm）螺栓强度等级（GB/T3098.1-2000）8.810.9螺栓材料的屈服强度极限smin(N/mm2) 640900预紧扭矩MA (Nm)M10114462M1213.577.5110M1415.5120170M1618190265M1820260365M2022370520M2224500700M2426640900M27309501350M303313001800预紧力FA(103N)M3336293412M3639344484M3942414581M4245473665M4548553777M4852623876M52567491054M56628631214M606610081418注：(1)、当螺栓尺寸不符合GBT57822000或GBT57832000时，表值需另行计算。(2)、螺栓头部与被夹紧面之间的总摩擦系数=0.14，螺纹少许涂以轻油。转盘轴承的游隙 转盘轴承的游隙主要用于补偿转盘轴承支承零件与有关主机装配部位的制造误差和安装误差以保证轴承的正常使用。转盘轴承的游隙值或予过盈量，根据转盘轴承的结构型式/公差等级以及滚动体组的节圆直径/分别列于表3表6表3 四点接触球回转支承轴承轴向游隙 m Dpwmm公差等级GED轴向游隙超过到最小最大最小最大最小最大2804507017050130309045071010022070170401207101120120280100220501501120180015035010026060180180028002004401503508024038004500260540200440100300表4 双排角接触推力球回转支承轴承轴向游隙 mDpwmm公差等级GED轴向游隙超过到最小最大最小最大最小最大280450501303090257045071070170401203090710112010022050150401201120180010026060180401401800280015035080240601803800450020044010030080240表5 交叉圆柱滚子回转支承轴承轴向游隙 mDpwmm公差等级GED轴向游隙超过到最小最大最小最大最小最大280450501303090257045071070170401203090710112010022050150401201120180010026060180401401800280015035080240601803800450020044010030080240表6 三排圆柱滚子组合回转支承轴承游隙 mDpwmm公差等级GED轴向游隙径向游隙轴向游隙径向游隙轴向游隙径向游隙超过到最小最大最小最大最小最大最小最大最小最大最小最大2804503090501302570309010502570450710401207017030904012015653090710112050150100220401205015020804012011201800601801002604014060180201004014018002800802401503506018080240301306018038004500100300200440802401003004016080240回转支承轴承部件所用材料套圈与滚动体用材料 一般情况下，回转支承滚动体采用整体淬硬的碳铬轴承钢。牌号为GCr15或GCr15SiMn钢制造；回转支承套圈则采用表面淬硬钢，当用户无特殊要求时，一般选用50Mn钢制造，但有时为了满足部分特殊应用场合主机的需要，也可根据用户提供的具体使用条件选用其它牌号的表面淬硬钢，如42CrMo、5CrMnMo等。保持架用材料 回转支承用保持架有整体式、分段式、隔离块式等结构形式。其中整体式和分段式保持架用20号钢或ZL102铸造铝合金制造。隔离块式采用聚酰胺1010树脂，ZL102铸造铝合金等制造。近年来随着材料工业的不断发展尼龙GRPA66.25也在分段保持架的设计中得以推广应用。密封圈用材料 回转支承密封圈用材料采用耐油丁睛橡胶制造。 套圈材料及毛坯供应状态的代号按表的规定，表中“T”表示套圈毛坯为调质状态供应，“Z”则表示套圈毛坯以正火状态供应。代号010203040506材料及毛坯状态45BT45BZ42CrMoT42CrMoZ5CrMnMoT5CrMnMoZ代号070809101112材料及毛坯状态42SiMnT42SiMnZ45MnT45MnZ50MnT50MnZ 滚动体中心圆直径为3150mm，球径为75mm，齿轮模数m=20mm，套圈材料用50Mn，毛坯材料为正火状态制造的内齿式四点接触球会转至承表示为013.75.3150.12回转支承轴承的表示法表示方法之一（由前置代号、基本代号、后置代号三段组成）：实例一： 回转支承套圈材料用50Mn制造的内径尺寸为1200mm,精度等级为E级的外齿式双排角接触推力回转支承可表示为E6788/1200G2表示方法之二：球柱联合式回转支承外齿式1、n1为润滑油孔数，油杯M101 JB/T7940.1-JB/T7940.2。可按用户要求设计油孔位置及尺寸。2、n-可改为螺旋孔，螺纹直径M、螺纹深度2M。3、表内齿轮圆周力为最大圆周力，额定圆周力取1/2。4、“”为削顶系数。5、样本中型号为标准型号，内外径均为自由公差。6、若用户对产品有特殊要求，请与我公司联系。轴承型号DL(mm) 外形尺寸安装尺寸结构尺寸齿轮参数 齿轮圆周力参考重量(kg)De(mm)d(mm)H(mm)D1(mm)D2n(mm)M(mm)n1(mm)D3(mm)d1(mm)H1(mm)h(mm)b(mm)m(mm)Zxk正常（KN）量大（KN）221.32.3550.*3772.833581593638341876302710359135091435010916232+0.10.11603202028221.32.3750.*3980.835581593846361880302710379137091435010916246+0.50.11603202186221.32.4000.*4220.838081594086386884302712404139591435010916261+0.50.11603202278221.32.4250.*4476.840581594342411890302712429142091435010916276+1.00.11603202455221.36.4000.*4244.437921754095385876333012404539551595012518232+1.00.11963912792221.36.4250.*4496.440421754347410880333012429542051595012518247+0.50.11963912981221.36.4500.*4748.442921754599435884333014454544551595012518261+0.50.11963913171221.36.4750.*5000.445421754851460890333014479547051595012518275+0.50.11963913363221.40.4500.*477642761834612434872363314455044501675013320236+0.50.12314633673221.40.4750.*501645261834852459876363314480047001675013320248+0.50.12314633796三排圆柱滚子组合回转支承外齿式1、n1为润滑油孔数，油杯M101 JB/T7940.1-JB/T7940.2。可按用户要求设计油孔位置及尺寸。2、n-可改为螺旋孔，螺纹直径M、螺纹深度2M。3、表内齿轮圆周力为最大圆周力，额定圆周力取1/2。4、“”为削顶系数。5、样本中型号为标准型号，内外径均为自由公差。6、若用户对产品有特殊要求，请与我公司联系。型号 DL (mm)外形尺寸安装尺寸结构尺寸齿轮参数齿轮圆周力参考重量 (kg)De(mm)D(mm)d(mm)H(mm)D1(mm)D2(mm)n(mm)M(mm)n1(mm)D3(mm)d1(mm)H1(mm)h(mm)b(mm)m(mm)zxk正火(KN)调质(KN)131.32.900.*1102.4106473618210207803622204941930172401208135+0.50.1121167549132.32.900.*110810108151209562131.32.1000.*1218116483618211208804022205104110301724012010119+0.50.1151209631132.32.1000.*1221.61299181251631131.32.1120.*13381284956182124010004022205116111501724012010131+0.50.1151209710132.32.1120.*1341.612109181251710131.40.1250.*1509.614451055220139311074526245130012872105015012123+0.50.12293141137132.40.1250.*1509.2141052633661126131.40.1400.*1665.615951205220154312574526245145014372105015012136+0.50.12293141299132.40.1400.*1663.2141162633661281131.40.1600.*1873.217951405220174314574826246165016372105015014131+0.50.12633661501132.40.1600.*1868.8161143024171471131.40.1800.*2069.219951605220194316574826246185018372105015014145+0.50.12633661682132.40.1800.*2076.8161273024171697131.20.2000.*2236.81853132210519055426245203020321232610616137+0.50.1311912131.25.2000.*2268.81819147212518854433307203620261383011716139+0.5045.2000.*2300.822211779231212518456033306205520332195416016141+0.50.13224452147132.45.2000.*2300.4181253625012129131.25.2240.*2516.42059147236621254833308227622661383011718137+0.5032.2240.*2252.42022181239521004039368228122701724213918139+0.5045.2240.*2556.824612019231239520856033306229522732195416016157+0.50.13224452501132.45.2240.*2552.4181396325012461131.25.2500.*2786.42319147262523855433306253625261383011718152+0.5032.2500.*2822.42282181265523604439367254125301724213918154+0.5045.2500.*2822.427212279231265523457233308255525332195416018154+0.50.13625012786132.45.2500.*2816201384025562731131.25.2800.*309626191472925268560333010283628261383011720152+0.5032.2800.*31362582181295526604839368284128301724213920154+0.5040.2800.*31362562220296526404839368285028372105017020154+0.5045.2800.*3110.430212579231295526457233308285528332195416018170+0.50.13625013067132.45.2800.*3116201534025563079131.32.3150.*34762932181330530105639367319131801724213920171+0.5040.3150.*3515.62912220331529905639367320031872105017022157+0.50.16503812131.50.3150.*353634322868270334229587245428321331962586518020174+0.50.14526265025132.50.3150.*3537.6221584986895009131.50.3350.*374038323068270354231587245428341333962586518020184+0.505382132.50.3350.*3740221675365131.32.3550.*3889.63332181370534106639368359135801724213922174+0.5040.3550.*3911.63312220371533906639368360035872105017022175+0.50.16504255131.50.3550.*393638323268270374233587245428361335962586518020194+0.50.14526265713132.50.3550.*3933.6221764986895661131.50.3800.*420040823518270399236087245428386338462586518020207+0.506150132.50.3800.*4202221886085131.32.4000.*4351.63782181415538607239369404140301724213922195+0.5040.4000.*4363.23762220416538407239369405040372105017024179+0.5050.4000.*4395.642823718270419238088045428406340462586518022197+0.50.14986896508132.50.4000.*4395251735657836449131.50.4300.*470845824018270449241088045428436343462586518022211+0.506882132.50.4300.*4700251856912131.40.4500.*4867.242622204665434084393614455045372105017024200+0.5050.4500.*4901.647824218270469243088045428456345462586518022220+0.50.14986897438132.50.4500.*4895251935657837308131.60.5000.*544053204670320522047661004542185082506230265220202700011752三排圆柱滚子组合回转支承内齿式1、n1为润滑油孔数，油杯M101 JB/T7940.1-JB/T7940.2。可按用户要求设计油孔位置及尺寸。2、n-可改为螺旋孔，螺纹直径M、螺纹深度2M。3、表内齿轮圆周力为最大圆周力，额定圆周力取1/2。4、“”为削顶系数。5、样本中型号为标准型号，内外径均为自由公差。6、若用户对产品有特殊要求，请与我公司联系。型号 DL (mm)外形尺寸安装尺寸结构尺寸齿轮参数齿轮圆周力参考重量(kg)De(mm)D(mm)d(mm)H(mm)D1(mm)D2(mm)n(mm)M(mm)n1(mm)D3(mm)d1(mm)H1(mm)h(mm)b(mm)m(mm)zxk正火(KN)调质(KN)133.32.900.*691.210647361821020780362220487085917240120887+0.50.2121167551134.32.900.*6941070151209545133.32.1000.*784116483618211208804022205970959172401201079+0.50.2151209618134.32.1000.*784.81266181251613133.32.1120.*904128495618212401000402220510901079172401201091+0.50.2151209698134.32.1120.*904.81276181251691133.40.1250.*988.81445105522013931107452624512131200210501501283+0.50.22293141123134.40.1250.*985.614712633661122133.40.1400.*1144.81595120522015431257452624513631350210501501296+0.50.22293141254134.40.1400.*1139.614822633661258133.40.1600.*1335.61795140522017431457482624615631550210501501496+0.50.22633661454134.40.1600.*1334.416843024171448133.40.1800.*1531.619951605220194316574826246176317502105015014110+0.50.22633661658134.40.1800.*1526.416963024171663133.20.2000.*17602147132209518955426245196819691232610616111+0.50311902133.25.2000.*17282181147211518754433307197419631383011716109+0.503261202133.45.2000.*1702.422211779231215518456033306196719452195416016107+0.50.23224452114134.45.2000.*1699.218953625012112133.25.2240.*19442421147235521154833308221422031383011718109+0.503661406133.32.2240.*19082458181238020854039368221021991724213918107+0.504352010133.45.2240.*1926.424612019231239520856033306220721852195416016121+0.50.23224452447134.45.2240.*1933.2181083625012407133.25.2500.*22142681147261523755433306247424631383011718124+0.503661545133.32.2500.*21782718181264023454439367247024591724213918122+0.504352210133.45.2500.*2185.227212279231265523457233308246724452195416018122+0.50.23625012862134.45.2500.*2188201104025562834133.25.2800.*250029811472915267560333010277427631383011720126+0.504071767133.32.2800.*24603018181294026454839368277027591724213920124+0.504832542133.40.2800.*24603038220296026354839368276327502105017020124+0.505913213133.45.2800.*2491.230212579231295526457233308276727452195416018139+0.50.23625013211134.45.2800.*2488201254025563209133.32.3150.*28203368181326029955639367312031091724213920142+0.504832807133.40.3150.*27943388220331029855639367311331002105017022128+0.506503683133.50.3150.*276834322868270334229587245428310430902586518020139+0.50.24526264954134.50.3150.*2758.8221264986894988133.50.3350.*296036323068270354231587245428330332862586518020149+0.505277134.50.3350.*2948221355342133.32.3550.*31903768181369033956639368352035091724213922146+0.505323302133.40.3550.*31903788220371033856639368351335002105017022146+0.506504171133.50.3550.*316838323268270374233587245428350434902586518020159+0.50.24526265638134.50.3550.*3154.8221444986895706133.50.3800.*340040823518270399236087245428375437372586518020171+0.505956134.50.3800.*3388221555998132.32.4000.*36524218181414038457239369397039591724213922167+0.505323664133.40.4000.*36244238220416038357239369396339502105017024152+0.507104810133.50.4000.*3616.842823718270419238088045428395439402586518022165+0.50.24986896257134.50.4000.*3610251455657836268133.50.4300.*389445824018270449241088045428425442372586518022178+0.506698134.50.4300.*3900251576716133.40.4500.*412847382204660433584393614446344502105017024173+0.507105367133.50.4500.*4122.847824218270469243088045428445444402586518022188+0.50.24986897040134.50.4500.*4110251655657837108三排圆柱滚子组合回转支承无齿式1、n1为润滑油孔数，油杯M101 JB/T7940.1-JB/T7940.2。可按用户要求设计油孔位置及尺寸。2、n-可改为螺旋孔，螺纹直径M、螺纹深度2M。3、表内齿轮圆周力为最大圆周力，额定圆周力取1/2。4、“”为削顶系数。5、样本中型号为标准型号，内外径均为自由公差。6、若用户对产品有特殊要求，请与我公