Loading method, loading equipment and installation method of rolling bearing pretightening force

Abstract

The application discloses a loading method, loading equipment and installation method of a rolling bearing pretightening force. Wherein, the rolling bearing is arranged between the shaft and the housing; one end of the shaft has a tightening member and a pressure plate; the gap distance between the pressure plate and the end surface of the shaft is changed by turning the tightening member ; Wherein, the loading method of the rolling bearing pretightening force includes the following steps: rotating the tightening member; obtaining the rotational resistance torque when the housing rotates relative to the shaft; when the rotational resistance torque reaches less than its When the predetermined value is reached, measure the gap distance; the predetermined value is less than the target value of the rotational resistance moment; determine the target thickness of the gasket according to the gap distance; install the gasket with the target thickness on the pressure plate and between the end surface of the shaft, the tightening member is rotated until the rotational resistance torque reaches the target value. The application can apply proper pre-tightening force to the bearing during the axle assembly process.

Description

technical field [0001] The present application relates to the field of preload installation of bearings, in particular to a method for loading preload of rolling bearings, a loading device and an installation method of axle bearings. Background technique [0002] The preload of the rolling bearing means that after the bearing is assembled, a constant force is applied on the inner or outer ring of the bearing along its axial direction in a certain way, and this force is maintained so that the inner and outer rings produce a relative axial force. Movement, on the one hand, can eliminate the internal clearance of the bearing, on the other hand, at the same time, it can force the rolling elements to be in close contact with the inner and outer rings, and produce a certain deformation at the contact point. Since this deformation is not caused by bearing load, it is called pre-deformation. [0003] The preloaded bearing bears the same load when it is working, and its contact defo...

AI Technical Summary

Problems solved by technology

When the bearing preload is too tight, the life of the sealing ring and bearing will be reduced; when the bearing is preloaded too loose, the sealing effect will be poor, oil leakage will occur, and the life of the sealing ring and bearing will also be affected

[0006] However, during the assembly process of the axle, mainly relying on experience to pre-tighten the bearings, the requirements for operators are relatively high, and human factors are greatly affected, which is prone to the problem of poor pre-tightening

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