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A rear drive axle housing assembly

A rear drive axle and axle housing technology, applied in axles, wheels, transportation and packaging, etc., to avoid frequency coupling, avoid resonance phenomena, and reduce vibration and noise

Active Publication Date: 2016-04-27
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention changes the modal parameters of the rear drive axle structure by welding the metal block, thereby reducing the vibration and radiation noise of the rear axle, but it cannot solve the problem of howling of the rear axle under high-speed deceleration conditions

Method used

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  • A rear drive axle housing assembly
  • A rear drive axle housing assembly
  • A rear drive axle housing assembly

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Embodiment Construction

[0013] In order to further explain the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0014] see Figure 1 to Figure 4 As shown, the rear drive axle axle housing assembly includes an axle housing 1 welded by upper and lower halves, a rear cover 3 and a cover plate 2 arranged at the rear of the middle section of the axle housing. The cover plate 2 is welded by QT500 steel plate with a thickness of 5mm, including the left section 21 and the right section 22 with the same structure and arranged symmetrically. The section 21 and the right section 22 are welded through a wider end, and the side walls of the left section 21 and the right section 22 form the cover edge of the cover plate 2 . The cover plate 2 is buckled at the rear of the middle section of the axle housing and welded to the rear of the middle section of the axle housing. The lower cover edge of 2 is located direct...

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Abstract

The invention discloses an axle housing assembly of a rear drive axle. The assembly comprises an axle housing, a rear cover and a cover plate, wherein the rear cover is arranged on the rear portion of the middle section of the axle housing. The cover plate is buckled on the rear portion of the middle section of the axle housing and is welded to the middle section of the axle housing, the upper cover edge of the cover plate is located over the upper surface of the middle section of the axle housing, a gap exists between the upper cover edge of the cover plate and the upper surface of the middle section of the axle housing, the lower cover edge of the cover plate is located under the lower surface of the middle section of the axle housing and spaced with the upper surface of the middle section of the axle housing, and cavities used for absorbing air flow are formed between the cover plate and the upper surface of the rear portion of the middle section of the axle housing and between the cover plate and the lower surface of the rear portion of the middle section of the axle housing respectively. By means of the axle housing assembly, the problem of howling of a rear axle under high-speed deceleration work conditions can be solved, and noise of the rear drive axle can be lowered.

Description

technical field [0001] The invention relates to parts of automobiles, more specifically to a rear drive axle housing assembly. Background technique [0002] Existing microcars mostly adopt three-section welded structure rear axle, and the three-section rear axle axle housing assembly is formed by welding the axle housing sleeve pipe and the middle section of the axle housing, and the axle housing middle section is formed by welding the upper and lower halves. Since the master and slave teeth of the main reducer rotate at a high speed after meshing in the middle section of the axle housing, a lot of noise will be generated, especially in the deceleration section, which will produce a high-frequency whistling sound, which seriously affects the maneuverability of the vehicle. [0003] 201110174723.X discloses "a low-noise micro-surface automobile rear drive axle". The seven positions on the left side of the body front and above the shock absorber bracket on the left side of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B35/16
Inventor 裴聪
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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