Automobile power-assisted steering motor rotor bearing lining

A technology for power steering and motor rotors, which is applied to the rigid brackets of bearing components, bearing components, shafts and bearings, etc. It can solve the problems of short service life, vibration noise of bearings and bearing housings, easy axial movement, etc., to avoid The effect of excessive axial load, elimination of vibration and noise, and elimination of axial movement

Inactive Publication Date: 2015-12-23
NINGBO HONGLING MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the accumulated errors in the manufacture and assembly of the various parts of the motor, the axis of the rotor during actual assembly is not coaxial with the axis of the inner bore of the stator magnetic tile, because the "O" rubber ring is a "line" rather than a "surface" Support, resulting in rigid contact between the outer edge of the rotor bearing and the bearing seat, which will cause vibration and noise between the bearing and the bearing seat: due to the machining error of each part and the rigid contact between the bearing and the bearing seat, it will also cause the inner and outer parts of the bearing If the axial preload of the gaske

Method used

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  • Automobile power-assisted steering motor rotor bearing lining
  • Automobile power-assisted steering motor rotor bearing lining
  • Automobile power-assisted steering motor rotor bearing lining

Examples

Experimental program
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Embodiment Construction

[0017] refer to Figure 1 ~ Figure 4 , a bushing for a rotor bearing of an automobile power steering motor according to the present invention, the bushing 1 is an annular thin-walled ethylene-propylene rubber member, and the upper end surface of the bushing 1 is evenly provided with several cylindrical flanges called male end 11;

[0018] In application, the rotor shaft is statically fitted with the inner ring of the rotor bearing 3, the bushing 1 is set on the outer ring of the rotor bearing 3, and the bushing 1 and the rotor bearing 3 are jointly placed in the inner cavity of the bearing seat 21 of the stator shell 2 , the convex end 11 is in contact with the axial end surface of the inner cavity of the bearing seat 21 .

[0019] Working Principle and Beneficial Effect

[0020] Through the elastic liner of the bushing 1, the axis of the rotor 5 and the axis of the inner bore of the stator magnet 6 can be flexibly corrected and tend to be coaxial, and the rigid contact betw...

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PUM

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Abstract

The invention discloses an automobile power-assisted steering motor rotor bearing lining. An elastic lining is arranged between a rotor bearing and the inner wall of the bearing seat of a stator housing. The lining is in an annular shape and is a thin-wall ethylene propylene rubber member the top of which is provided with flanges. In virtue of the elastic lining of the lining, the axis of the rotor and the axis of the inner chamber of a stator magnetic shoe are subjected to flexible rectification in order to be coaxial. A technical scheme of adjusting the axial pretightening force of the rotor bearing on the bearing seat by using the flanges achieves purposes of prolonging the service life of the rotor bearing, eliminating the axial floating of the rotor bearing, increasing installation efficiency, and reducing cost.

Description

technical field [0001] The invention relates to a device in a power steering motor of an automobile, in particular to a bushing for a rotor bearing of a power steering motor of an automobile used as a pad between the rotor bearing of the power steering motor of an automobile and a bearing seat of a stator casing. Background technique [0002] The rotor shaft of the automobile power steering motor and the bearing seat of the stator casing are provided with a ball bearing that carries the rotation of the rotor; hereinafter, the automobile power steering motor is referred to as the motor, the ball bearing carrying the rotor rotation is referred to as the rotor bearing, and the stator casing bearing is referred to as The seat is referred to as the bearing seat for short; in order to ensure the dynamic radial positioning accuracy and axial position accuracy of the rotor in the stator casing, the prior art adopts riveting and fixing the front bearing of the rotor and the end cover,...

Claims

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Application Information

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IPC IPC(8): H02K5/173F16C35/067
Inventor 吴国选钱文阳薛垚森
Owner NINGBO HONGLING MOTOR
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