轴承安装和拆卸.ppt

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1、 轴承安装和拆卸轴承安装和拆卸Installation and removalBearing installation and removalCleanliness 清洁 Plan the work 准备工作Inspection and preparation 检查和准备Why does a bearing need to be properlyfitted on shaft and in housing?为什么轴承需要正确的安装在轴上和轴承座里To fully use the load carrying capacity of the bearing 完全承载To prevent rings

2、 from turning on or in their seating under load 防止轴承圈移位To guarantee adequate internal clearance 保证适当内部间隙To reach bearing life expectancy 达到轴承预期寿命To make safer and easier mounting and dismounting 使拆装安全简便To permit axial displacement for float bearing 允许浮动轴承轴向移动Bearing installation and removalDirect sh

3、aft mounting,cylindrical/straight bore 直孔轴承直接装在轴上。Direct shaft mounting,tapered bore锥孔轴承直接装在轴上Tapered adapter sleeve 锥孔适配套Pull-type 紧定套Push-type 退卸套Bearing installation and removal for spherical roller bearings调心心滚子子轴承的拆装承的拆装Bearing mounting arrangement轴承安装简介Dirty work bench 不够清洁的工作台不够清洁的工作台Designat

4、e a suitable working area 指定一个合适的工作区Clean assembly area and tools 清洁装配区和工具The following tools should be accessible before assembly procedure is started:eye bolts,handling fixtures,hooks,slings,wrenches,gauges and lubricating equipment.事先准备好常用工具比如吊环螺栓，工装夹具，吊钩，吊带，扳手，量具和润滑设备Preparation for mounting 准备安

5、装Bearing installation and removalClean work bench 干净的工作区干净的工作区Straight bore bearing mounting直孔轴承安装直孔轴承安装Bearing installation 轴承安装承安装Bearing installation 轴承安装承安装Do not use torch to heat bearings不要用喷枪加热轴承不要用喷枪加热轴承 Induction heating 感应加热Bearing installation 轴承安装承安装Induction heater 感应加热器感应加热器Heating in

6、oil bath 油浴加热Temperature 温度:250F Duration时间:varies according to size根据尺寸调整15 minutes to two hours soak time 浸入时间Bearing mounting 轴承安装轴承安装Bearing support blockNon-conductive 轴承支撑块，不导热的Oilhigh flash point 热油Flame burner 火源Bearing held from bottom by screen用网隔与底部隔开Preparing for installation 准备安装准备安装 Ch

7、eck for debris 检查毛刺Raised areas unacceptable 不允许毛刺突起不允许毛刺突起Ensure shaft integrity 保证轴的平直保证轴的平直Shaft and housing inspectionprocedure 轴和轴承座检查步骤轴和轴承座检查步骤Shaft and housing dimensions 轴和轴承座尺寸轴和轴承座尺寸Size 尺寸 OD tolerance 外径公差Roundness 圆度 One-half OD tolerance 外径公差的一半Straightness 平面度 One-half OD tolerance 外

8、径公差的一半Size average diameter 尺寸Form roundness,straightness(taper)形状Surface roughness topography表面质量Important shaft and housing attributes Shaft Straight Tapered63 rms(1.6Ra)Housing Fixed Float50 rms(1.25Ra)125 rms(3.2Ra)63 rms(1.6Ra)Check in angular planes 检查带锥度的面80%conformity required 要求吻合度 Prussian

9、 blue and precision straight edge or sine bar confirms surface topography用普鲁士蓝和精密直规确认表面质量用普鲁士蓝和精密直规确认表面质量Check shaft shoulder fillet radius检查轴肩倒角检查轴肩倒角Fillet radius too large倒角过大Correct Fillet radius 正确Shaft shoulder diameter Shaft shoulder diameter 轴肩尺寸轴肩尺寸Shoulder too small轴肩过低Shoulder too large轴肩

10、过大Correct shaft shoulder diameter正确的轴肩Handling hot bearing 搬运热轴承搬运热轴承Handling hot bearing Handling hot bearing 安装热轴承安装热轴承Ensure bearing is Ensure bearing is flush with shaft flush with shaft shoulder shoulder 保证轴承与保证轴承与轴肩平齐轴肩平齐.002”feeler gage 塞规Hold bearing in position while cooling 在冷却时压住轴承在冷却时压住轴

11、承Protect the bearing 保护轴承保护轴承Mountingtapered-borespherical rollerbearing锥孔调心滚子轴承的锥孔调心滚子轴承的安装安装Sine barset up正弦规配置正弦规配置Eighty percent conformity required测量吻合度测量吻合度Measuring bench RIC 测量安装前径向游隙测量安装前径向游隙Drive bearing up tapered journal将轴承推装在轴上将轴承推装在轴上Hydraulic nut 液压螺母液压螺母Check mounted RIC Check mounte

12、d RIC 测量安装后间隙测量安装后间隙Lock washer Lock washer and nutand nut锁紧垫片和锁锁紧垫片和锁紧螺母紧螺母Lock plateand nut锁紧板和锁紧锁紧板和锁紧螺母螺母Pull-typetaperedadaptersleeve紧定套紧定套Push-typetaperedadaptersleeve退卸套退卸套Bearing in SAF style pillow blockStabilizingring insideof block固定环在轴承座内Bearingremoval轴承拆卸轴承拆卸Bearing removal tools 轴承拆卸工具

13、轴承拆卸工具Bearing removal 轴承拆卸轴承拆卸Pullers 拉拔器Puller withhydraulic assist带液压辅助设备的拉带液压辅助设备的拉拔器拔器Inner Ring 内圈Apply Pressure Only On Tight Fitted Ring仅在紧配合的轴承圈上施力仅在紧配合的轴承圈上施力Outer Ring 外圈flushJournal with hydraulic removal feature轴颈上带有液压拆卸槽轴颈上带有液压拆卸槽Loosen,do not remove松开螺母，但不要拿掉松开螺母，但不要拿掉！Mechanics of hyd

14、raulic removal液压拆卸的机械结构液压拆卸的机械结构Pressure moves bearing down油压使得轴承被拆下油压使得轴承被拆下Straight bore removal with hydraulic assist 液压辅助直孔轴承拆卸液压辅助直孔轴承拆卸Hydraulic dismounting circumferential groove拆卸用液压环形槽Proper installation and clearances 正确地安装和清洁Accurate shaft and housing geometry 精确的轴和轴承座形状System alignment 系统保证同心Proper lubrication 正确地润滑Protection from contaminants/moisture 保护轴承隔离水气和污染物Considerations for optimizingbearing life 获得最得最优轴承寿命的考承寿命的考虑因素因素谢谢！谢谢！