Method for reducing clearance error of bearings of wheel end assembly

A technology of bearing clearance and wheel end assembly, which is applied to the rigid brackets, bearing components, shafts and bearings of bearing components, etc., can solve the problems of accumulated errors and difficulty in the system, and achieves elimination of errors and reduction of positioning errors. , the effect of reducing the clearance

Active Publication Date: 2015-01-28
SHANDONG HAOXIN MACHINERY
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AI Technical Summary

Problems solved by technology

In order to ensure the adjustment of the clearance, the tolerance of the bearing block usually needs to be controlled to about ±0.05mm, and the tolerance of the support spacer also needs to be controlled to ±0.05. The product processing is very difficult, and there may still be more than 10 wires. system cumulative error

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  • Method for reducing clearance error of bearings of wheel end assembly
  • Method for reducing clearance error of bearings of wheel end assembly

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] The method for reducing the clearance error of a bearing used in a wheel end assembly includes the following steps:

[0024] (1), casting the wheel hub 1 and the support spacer 3 for supporting the two rows of bearings 4 in the wheel hub 1 into one;

[0025] (2) After one positioning and clamping, the hub 1 and the support spacer 3 are finished according to the distance between the two rows of bearings 4;

[0026] (3), separate the hub 1 and the support spacer 3 from the connection, (for the specific structure, see figure 1 with figure 2 ).

[0027] In step (3), the diameter of the oute...

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Abstract

A provided method for reducing clearance error of bearings of a wheel end assembly comprises the following steps: (1) integrally casting a wheel hub and support spacers for supporting two rows of bearings in the wheel hub; (2) after once positioning and clamping, precisely processing the wheel hub and the support spacers according to the distance of the two rows of the bearing; and (3) separating the wheel hub and the support spacers from the connection parts. By integrally casting the wheel hub and the support spacers and employing once positioning and clamping the processed wheel hub and the support spacers, the positioning error is reduced, the consistence of the dimension tolerance and the geometric tolerance between the wheel hub and the support spacers is guaranteed, the clearance between the support spacers and the bearings is effectively reduced, and the accumulated error is substantially reduced, so that the service life of the bearings and the normal working state of the wheel end assembly are guaranteed. Also, the integrally-cast support spacer structures accord with stress in environments such as vehicle turning, severe impacting and the like, is improved in service life, and also helps to improve the strength and the bearing capacity of the wheel hub.

Description

technical field [0001] The invention belongs to the technical field of wheel end assemblies, in particular to a method for reducing the clearance error of a bearing used in the wheel end assembly. Background technique [0002] At this stage, with the rapid development of China's expressway network and automobile logistics industry, the number of commercial vehicles / passenger vehicles is increasing. At present, commercial vehicles / passenger wheels mostly use two rows of tapered roller bearings for rotation. The use of tapered roller bearings causes the axial clearance of the wheel. If the clearance is too large, the number of rollers involved in rolling contacting the inner and outer rings is too large. If the clearance is too small, it will lead to excessive stress and deformation, and reduce the fatigue life of the bearing; if the clearance is too small, the bearing will roll and heat up after bearing heavy loads, which will cause the inner and outer rings to glue and lock ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C35/06B60B27/02
Inventor 吕继贤蒲光明金振伟高世阳
Owner SHANDONG HAOXIN MACHINERY
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