Main reducing gear shell and main reducing assembly

Abstract

The invention provides a main reducing gear shell. The main reducing gear shell comprises a large reducing shell face, a rotating base body, a protruding circular arc and a bearing pedestal mounting hole. A circular arc face is formed by the rotating base body and the protruding circular arc, and a first oil stopping plate and a second oil stopping plate are arranged at the concave position of an inner cavity of the circular arc face, are distributed on the two sides of the mounting horizontal line of the bearing pedestal mounting hole and extend to the edge from the bearing pedestal mounting hole; a first oil adding hole boss and a second oil adding hole boss which can machine oil adding holes communicated with a lubricating oil cavity are cast on the outer surface of the rotating base body; the oil stopping plates of an innovative structure are arranged in the main reducing gear shell, and a protruding structure is innovatively designed on the shell, so that integration of an oil inlet way and an oil returning way is achieved; under the four states of forward rotation and reverse rotation of lower offset and forward rotation and reserve rotation of upper offset of a driving conical gear, a main reducing assembly supporting bearing is lubricated; and generality of the main reducing gear shell and a main reducing assembly is greatly improved, and the development cost of an axle is reduced.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a main reducer housing and a main reduction assembly of a medium-heavy vehicle axle. Background technique [0002] The main reducer assembly is an important part of the automobile drive axle. It plays the role of reducing the speed and increasing the torque in the transmission system. Among the existing automobile drive axle products, it is used for the main reducer assembly of engineering vehicles, buses and trucks. Most of the parts in Chengzhong are common, but it is difficult to achieve universality for the main reducer housing in the main reducer assembly, because the difference between the front and rear axles and the upper and lower offsets of the active and passive gears will cause The lubricating oil passages of the active bevel gear bearings are different, so two kinds of main reducer shells or two bearing seats must be designed in the design to meet the lubrication ...

AI Technical Summary

Problems solved by technology

[0002] The main reducer assembly is an important part of the automobile drive axle. It plays the role of reducing the speed and increasing the torque in the transmission system. Among the existing automobile drive axle products, it is used for the main reducer assembly of engineering vehicles, buses and trucks. Most of the parts in Chengzhong are common, but it is difficult to achieve universality for the main reducer housing in the main reducer assembly, because the difference between the front and rear axles and the upper and lower offsets of the active and passive gears will cause The lubricating oil passages of the active bevel gear bearings are different, so two kinds of main reducer shells or two bearing seats must be designed in the design to meet the lubrication requirements of the bearings under the different situations of the front and rear axles and the vertical offset of the active and passive gears. This not only greatly reduces the versatility of the main reduction assembly in the drive axle, but also increases the product variety and development costs, especially for medium and heavy vehicles

Images