Wheel edge device of semi-floating rear drive axle assembly

Abstract

The invention relates to a wheel edge device of a semi-floating rear drive axle assembly. The wheel edge device comprises a half shaft (1), wherein a brake drum (11) is connected to the outer side of the half shaft in a matched mode, and a brake (10) is connected to the brake drum in a matched mode. The wheel edge device is characterized in that the half shaft is sleeved with a transition receiving disk (2) in a matched mode, and a bearing (5) connected with the half shaft (1) in a matched mode is arranged in the transition receiving disk; the transition receiving disk is further matched with the brake in a braking mode, a bearing baffle (8) is arranged on one side of the transition receiving disk, and a bearing locating sleeve (12) is arranged on the other side of the transition receiving disk; the bearing baffle and the bearing locating sleeve are both matched with the bearing in a limited mode and are both connected to the half shaft in a sleeving mode. The wheel edge device has the advantages that a bearing seat, an axle housing oil seal and a half shaft oil seal of an existing wheel edge device are omitted, the number of parts of the wheel edge device is reduced, the raw material cost is lowered, and the structure is compacter, so that the total weight of the rear drive axle assembly is lowered by 4%; the assembly process is simplified, and production efficiency is improved.

Description

technical field [0001] The invention relates to a rear drive axle assembly of an automobile, in particular to a wheel edge device of a semi-floating rear drive axle assembly. Background technique [0002] With the increasingly fierce market competition, the requirements for product cost are getting higher and higher, so new requirements are constantly put forward for the innovative design of the rear axle of the car. The current rear axle structure has been used for decades, and the optimized design of internal parts It has reached the extreme, and the structural design innovation is very urgent, so the wheel edge structural design that removes the bearing seat came into being. [0003] Such as image 3 As shown, the existing wheel edge device with a bearing seat is provided with a bearing seat 14 in the brake drum, and one end of the bearing seat 14 is connected and fixed on the transition plate 2 of the axle housing through the transition plate bolt 6, and the bearing The...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the wheel edge device of the semi-floating rear drive axle assembly at the present stage needs to add an independent bearing seat, resulting in a more complicated structure, high precision assembly and processing requirements, high difficulty and high cost , and there are shortcomings such as potential quality risk points, and a wheel edge device of a semi-floating rear drive axle assembly is proposed

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