轴承热装加热温度及工频加热法探讨
2021-08-20 09:16:33   来源：   评论：0 点击：

  关键词：轴承；热装；加热温度；过盈配合；过渡配合；工频加热；线膨胀系数；最小间隙
中图分类号：TS103.8        文献标志码：B         文章编号：1001-9634(2020)S1-0011-05

收稿日期：2020-02-27
作者简介：王维（1984—），男，陕西宝鸡人，工程师，主要从事喷气织机流水线装配及调试工艺等方面的研究。

 
 
Abstract:In order to improve assembly and working accuracy of bearing，and extend bearing service life，the classification，matching and installation methods of bearing are introduced.The advantages and disadvantages and their applicable scope of two bearing assembly methods of pressure assembly and hot assembly are analyzed.The bearing induction heating assembly principle and the characteristics of power frequency heater are discussed.Through formula calculation and data comparative analysis，it is determined that the temperature for bearing hot assembly is 50 ℃~130 ℃，and the best temperature is 70 ℃~90 ℃，and the operating points and matters needing attention during power frequency heating assembly are proposed.It is pointed out that the suitable assembly method and installation skill can improve the assembly and working precision of bearing，and prolong its service life.It is necessary to use power frequency heater for bearing assembly in hot assembly method，and controlling heating temperature is key.In order to prevent lubricating grease from flowing out or dust ring damage，bearings with dust cover and sealing ring generally do not need to be assembled by hot assembly method.
Key Words:bearing；hot assembly；heating temperature；interference fit；transition fit；power frequency heating；linear expansion coefficient；the minimum clearance

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