Low-cost inter-wheel differential structure

Abstract

The invention relates to a low-cost inter-wheel differential structure which comprises a left differential shell, a driven bevel gear and a right differential shell. The left differential shell, the driven bevel gear and the right differential shell are coaxially arranged, the end face of the left differential shell is fixedly connected with the end face of the right differential shell, the driven bevel gear is arranged on the periphery of the right differential shell in a sleeving mode and fixedly connected with the end of the left differential shell, an annular transition disc is coaxially arranged between the driven bevel gear and the left differential shell, the periphery of the right differential shell is sleeved with the transition disc, the transition disc is matched with the right differential shell through a radial spigot, and the driven bevel gear, the transition disc and the left differential shell are fixedly connected; and the end, facing the right differential shell, of the transition disc is provided with an outwards-extending spigot, and the outwards-extending spigot is tightly embedded between the driven bevel gear and the right differential shell. By additionally arranging the transition disc, the long-diameter size of the driven bevel gear can be shortened, and the proportion in the long-diameter direction is relatively harmonious. The outwards-extending spigot of the transition disc provides rigid support for the driven bevel gear, and the problem that the rigidity of the driven bevel gear is poor is solved.

Description

technical field [0001] The invention relates to the technical field of heavy-duty vehicle driving devices, in particular to a low-cost inter-wheel differential structure. Background technique [0002] The inter-wheel differential is widely used in drive axles of medium and heavy vehicles. Currently commonly used inter-wheel differentials include driven bevel gears, left differential housings, driven bevel gear connecting bolts, right differential housings, left and right differential housing connecting bolts, half shaft gears, planetary gears, and cross shafts, such as figure 2 shown. [0003] In the inter-wheel differential, the left and right differential shells are connected by radial seams and connecting bolts to form the overall installation framework of the differential; the driven bevel gear and the right shell are fitted by radial seams, and the installation end surface is connected to the left differential. The end surface of the shell is fitted and connected with...

AI Technical Summary

Problems solved by technology

However, this kind of gear structure is relatively thick and heavy, and the material utilization rate is low. The driven bevel gear is usually made of alloy steel 20CrMnTiH, and the cost is high; and the extension of the long diameter of the driven bevel gear results in a very different ratio of the long diameter direction of the driven bevel gear. Coordinated, the matching seam between the driven bevel gear and the right differential case is short, and the gear rigidity is poor

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