Protective rear axle housing for automobile rear drive axle

Abstract

Provided is a protective rear axle housing for an automobile rear drive axle, which solves the problem that gear oil in an inner cavity of an existing automobile rear drive axle is stirred by a high-speed running gear, and the gear oil splashes everywhere due to no protection or insufficient protection. The rear axle housing comprises a rear axle housing upper body, a rear axle housing lower body and half-axle oil baffles, and the half-axle oil baffles are of a flat plate type structure and are symmetrically and fixedly arranged in the rear axle housing lower body left and right; the upper end face of the half-shaft oil baffle is a first flange with a half-shaft arc groove formed in the middle, two side edges matched with the inner wall of the upper portion of the rear axle housing lower body are second flanges, the bottom face matched with the inner wall of the lower portion of the rear axle housing lower body is a third flange, and a backflow hole for gear oil to flow is formed in the middle of the bottom of the third flange. And the second flanges and the third flanges on the left side and the right side of the half-shaft oil baffle plate are sequentially connected through transition edges. The protective rear axle housing is simple in structure, reasonable in design, easy to machine and convenient to install and operate, the manufacturing cost is remarkably reduced, and 90% of gear oil is effectively prevented from being brought out of a rear drive axle inner cavity.

Description

technical field [0001] The invention relates to a component for ensuring normal high-speed operation of an internal transmission mechanism of an automobile drive axle, in particular to a protective rear axle housing for an automobile rear drive axle, which belongs to the technical field of axle manufacturing. Background technique [0002] The existing automobile rear drive axle includes the upper body of the rear axle housing, the lower body of the rear axle housing, the rear axle housing tube, the half shaft casing, the leaf spring support and the half shaft oil baffle arranged in the rear axle housing, including the main teeth, Transmission mechanisms such as gears, half shafts and planetary gears. Among them, when the car is running, the inside of the rear drive axle needs to be injected with gear oil to ensure normal transmission and its service life. On the premise of ensuring the normal operation of the transmission mechanism, in addition to considering reducing the o...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a protective rear axle housing for the rear drive axle of an automobile, which solves the problem that the gear oil in the inner cavity of the rear drive axle of the existing automobile is stirred by the high-speed running gear, and the gear oil splashes everywhere due to no protection or insufficient protection. It has simple structure, reasonable design, easy processing, convenient installation and operation, significantly reduces manufacturing costs, and effectively prevents 90% of gear oil from being taken out of the inner cavity of the drive axle

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