Connection structure of grader drive axle and balance box

Abstract

The invention discloses a connection structure of a grader drive axle and a balance box, which comprises a drive axle housing, the balance box, a connection sleeve, a copper bush, a baffle, a copper ring, a half shaft and a double-row chain wheel, wherein, the middle part of the connection sleeve (3) is fixedly connected with an internal plate of the balance box (4); one end of the connection sleeve (3) is connected with a big baffle (12) after penetrating the lateral plate of the balance box (4); the copper bush (2) is connected with an inner bore of the connecting sleeve (3) in an interference manner; one end of the drive axle housing (1) is connected with a small baffle (14) mounted in the connection sleeve (3) after penetrating the copper bush (2); the half shaft (8) is supported by abearing I (11) mounted in the inner bore of the big baffle (12) and a bearing II (19) mounted in the inner bore of the drive axle housing (1); the double-row chain wheel (10) is mounted at one end ofthe half shaft (8). The connection structure improves stress condition of drive train in the bridge, box and the axle housing, and has strong bearing capability and reliable work.

Description

technical field [0001] The invention relates to a motor grader, in particular to a connection structure between a motor grader driving axle and a balance box. Background technique [0002] Motor graders are widely used in high-grade highway construction. The connection structure between the driving axle of the grader and the balance boxes on the left and right sides plays an important role in the swing control of the balance box when the grader is running. At present, the connection structure between the driving axle of the motor grader and the balance box is: the self-aligning bearing at the shaft end of the drive axle half shaft is connected to the outer plate of the balance box through the end cover, and the drive axle axle housing is connected to the inner plate of the balance box through the copper sleeve and the connecting sleeve of the outer jacket. . This connection structure has the following disadvantages: [0003] 1. There are three radial bearings installed on...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned problems and defects in the prior art, the purpose of the present invention is to provide a new structure for the connection between the motor grader drive axle and the balance box. This structure effectively overcomes the over-constraint of the half shaft of the drive axle. Bearings and axle housings require high processing and assembly precision. When the motor grader is working, the force between the balance box and the drive axle and the bumping and vibration of the wheels are transmitted to the half shaft and bearings and other components, resulting in reduced service life and other problems.

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