Automobile overhead driving front axle

Abstract

The invention relates to an automobile front axle structure, in particular to an automobile overhead driving front axle. The structure of the automobile overhead driving front axle consists of a driving front axle reducer assembly, an axle shell, an internal half axle, an external half axle, a cross axle, an overhead gear case and a hub; the reducer assembly consists of an input axle, a differential mechanism assembly, a bearing and a bearing seat; the automobile overhead driving front axle is characterized in that the external half axle consists of a small gear and a connection head that areseparated; the internal side end surface of the small gear is provided with a plurality of radial tooth-shaped troughs uniformly; the cylindrical lug boss end surface with a connection head structureis provided with a plurality of corresponding radial teeth; the connection of the small gear and the connection head is characterized in that the radial teeth are inserted into the tooth-shaped troughs and a bolt passes through the central hole of the small gear in a threaded way; the input shaft of the reducer assembly is arranged at the right side and the differential mechanism assembly is turned over by 180 degrees at the internal edge of the axle shell. The automobile overhead driving front axle has the advantages that the external half axle fission executes butted structure of the radialteeth and the tooth-shaped troughs so as to provide sufficient design space for shortening the tooth width of the small gear and the external round diameter of the gear, and the steering and direction-changing are realized by that the input shaft of the reducer assembly is arranged at the right side and the differential mechanism assembly is turned over by 180 degrees.

Description

Technical field: [0001] The invention relates to an automobile front axle structure, in particular to an automobile elevated drive front axle. current technology: [0002] For bumpy mountain roads and soft dirt roads, the front and rear axles of the car need to be elevated to prevent the front and rear axles from touching the road surface and making it impossible to drive. The front and rear axles need to be elevated, that is, the axis of the drive shaft in the axle is higher than the centerline of the hub, which relatively raises the height of the axle housing from the ground. For four-wheel-drive vehicles, the structure of the rear axle is relatively simple, and the horizontal drive shaft of the rear axle is not directly connected to the wheel hub. As long as a gear is inserted at the end of the horizontal drive shaft of the rear axle to mesh with the additional transmission gear in the wheel hub for transmission, the meshing The gear center distance is the rising height ...

AI Technical Summary

Problems solved by technology

[0006] Such a structure in the prior art has the following defects: firstly, the smaller the distance between the outer half shaft and the wheel hub in the horizontal direction, the better, because the distance is large, and the car is stable Therefore, it is required that the tooth width of the outer axle pinion and the large gear on the hub should be as small as possible, and the structure should be as compact as possible.

[0008] However, if a transition gear is installed in the transfer case, the structure of the transfer case will change too much and the cost will increase

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