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Automobile rear axle case

An automobile rear axle and axle housing technology, applied in the field of auto parts, can solve the problems of poor sealing performance of the rear cover and axle housing assembly, poor weld quality stability, etc., to reduce the number of weld seams, reduce production costs, reduce Quantity effect

Inactive Publication Date: 2015-01-28
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the prior art above, the present invention provides an automobile rear axle housing to solve the problems of poor sealing performance of the rear cover and the axle housing assembly and poor stability of weld quality in the prior art

Method used

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  • Automobile rear axle case
  • Automobile rear axle case
  • Automobile rear axle case

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 2 Shown, a kind of automobile rear axle housing, comprises axle housing assembly 3 and rear cover 4, and described rear cover 4 is a whole and is rhombus, and its middle part protrudes outwards, has formed a cavity; The rear cover 4 is connected to the axle housing assembly 3 , and the diagonals of the two smaller inner corners of the rear cover 4 are parallel to the axis of the axle housing assembly 3 . The middle part of the rear cover 4 protrudes toward the opposite direction of the axle housing assembly 3, and the protrusion is composed of an outwardly protruding curved surface at the center of the rear cover and a plurality of inclined surfaces around the curved surface.

[0018] Such as figure 1 As shown, compared with the prior art, the diamond-shaped rear cover 4 is a part integrated with the circular ...

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Abstract

The invention relates to an automobile rear axle case, which comprises an axle case assembly and a rear cover, wherein the rear cover is a whole and is in a rhombic shape, the middle part of the rear cover is outwards projected, the rear cover is connected with the axle case assembly, and a diagonal line of two smaller inner corners of the rear cover is parallel to the axial line of the axle case assembly. A round rear cover and two back reinforcing plates in the prior art are integrated into one rhombic rear cover, the rear axle part number is reduced, one punching forming element is adopted for replacing the use performance of three parts, the manufacturing work procedures are reduced, the production cost is reduced, the structure rigidity of the axle case and the X-direction bending mode are improved, the resonance frequency domain is avoided, and the NVH (noise vibration and harshness) quality of a whole automobile is improved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to an automobile rear axle housing. Background technique [0002] Such as figure 1 As shown, the circular rear cover 1 is welded to the axle housing assembly 3, so that the rear axle forms a sealed structure to prevent the gear oil from flowing out of the axle housing, resulting in insufficient lubrication of the gears and bearings, ablation, stagnation, etc., which affect the performance of the rear axle. Service life; the rear reinforcement plate 2 is welded with the circular rear cover 1 and the axle housing assembly 3 respectively, which can strengthen the X-direction mode of the rear axle, avoid the resonance frequency domain of the whole vehicle, and improve the NVH (noise, vibration and acoustic vibration) of the whole vehicle The English abbreviation of roughness is a comprehensive question to measure the quality of automobile manufacturing). [0003] This solution requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B35/16
Inventor 任良顺王冬琴徐铁韦宝侣黄武军
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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