Automobile steering drive axle

Abstract

The invention discloses an automobile steering drive axle. The automobile steering drive axle comprises a speed reducer shell, a rear cover, an axle shell body, a pair of shaft sleeves and a pair of half shafts, the speed reducer shell is installed at one side of the axle shell body, the rear cover is installed at the side, opposite to the speed reducer shell, of the axle shell body, and holes areformed at the two ends of the axle shell body. The pair of shaft sleeves is fixedly connected with the two ends of the axle shell body, the pair of half shafts is inserted into the pair of shaft sleeves, and a pair of sealing outer ring structures is installed on the pair of half shafts and the shaft sleeves. The invention relates to the technical field of automobiles. The automobile steering drive axle adopts a half-shaft structure, the outer ends of the half shafts are sealed and wrapped through the sealing outer ring structures, a sealing part is lubricated through a thixotropic lubricating and sealing structure, and meanwhile sealing and plugging are conducted through the effect that the viscous force is large in the standing process. Therefore, the resistance can be reduced as much as possible while the connecting part of the half shafts and an axle shell of an automobile is kept sealed.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile steering drive axle. Background technique [0002] When the car is running, the drive axle is responsible for driving the wheel hub to rotate, and then drives the car forward, while the steering axle is responsible for the steering of the car. In some cars, the steering axle and the drive axle are combined on the front axle in order to save space and cost. Compared with the steering axle, the driving part is added. In terms of structure, there must be the main reducer, differential and half shaft of the general driving axle, as well as the steering knuckle and kingpin of the steering axle, so that the vehicle body can be saved. However, it will limit the size of the engine and limit the power of the engine; most of the existing steering drive axles are connected by half bridges, and the part where the half shaft is inserted into the axle housing is not tightly s...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides an automobile steering drive axle, which solves the problem that the existing steering drive axles mostly use half-bridge connections, and the part where the half-axle is inserted into the axle housing is not tightly sealed, which often causes this part to Dust is deposited in the axle housing, causing serious wear between the axle housing and the half shaft, and serious wear on the parts of the half shaft and the half shaft sleeve

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