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主轴轴端盲孔内的轴承保持架损坏,钢球脱落,需要更换新轴承,但原轴承的外圈是很难取出来,我们自制了一套小工具,把轴承外圈从盲孔中取出,见图。锥体3的锥度为20°,锥体中心处攻丝,与螺杆9相配。定位体7的一端加工成四方,另一端做成卡爪式,外圆尺寸等于或略小于轴承外圈内径尺寸,内径做成锥度20°,与锥体3相配,中间处螺纹与大螺母6相配。套4、垫5可以代用,套4内孔大于轴承外圈即可。使用时如图所示,将定位体7卡爪端放入轴承外圈
Spindle shaft blind bore hole bearing cage damage, ball off, the need to replace the new bearing, but the original bearing outer ring is difficult to remove, we made a small tool, the bearing outer ring removed from the blind hole See figure. The taper of the cone 3 is 20 °, tapping at the center of the cone is matched with the screw 9. One end of the positioning body 7 is processed into square and the other end is made into a dog claw type, the outer circle size is equal to or slightly smaller than the inner diameter of the outer circle of the bearing, the inner diameter is made into a taper 20 °, matched with the cone 3, match. Set of 4, pad 5 can be used as a replacement, set of 4 holes larger than the outer bearing can be. When used as shown, the positioning body 7 claw end into the bearing outer ring