Double-bevel gear drive axle double-speed reducer structure

Abstract

The invention belongs to the field of automobile drive axles, and relates to a double-bevel gear drive axle double-speed reducer structure. The device mainly comprises a differential mechanism assembly, a first shaft driving bevel gear, a second shaft driving bevel gear, a first shaft driven bevel gear and a second shaft driven bevel gear; the first shaft driving bevel gear adopts an integrated structure with driving bevel gears and a driving cylindrical gear, the driving bevel gears of the end face is meshed with the first shaft driven bevel gear, and the driving cylindrical gear structure ismeshed with a driven cylindrical gear structure of the second shaft driving bevel gear; the second shaft driving bevel gear adopts an integrated structure with driving bevel gears and a driven cylindrical gear, the driving bevel gear of the end face is meshed with the second shaft driven bevel gear, and the driven cylindrical gear structure is meshed with the driving cylindrical gear structure ofthe first shaft driving bevel gear. According to the device, the double-speed reducer structure is adopted, when a commercial vehicle is fully loaded, a large speed ratio is adopted, and driving torque is increased; when no-load is carried out, a small speed ratio is adopted, and the driving speed is increased; through reasonable arrangement of the speed and the torque, the oil consumption is reduced, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the field of automobile driving axles, and in particular relates to a double-speed reducer structure of a driving axle with double bevel gears. Background technique [0002] Domestic commercial vehicle drive axles mostly have a single speed ratio structure, which often has the following disadvantages: when the full-load torque meets the requirements, the no-load speed is insufficient; or when the no-load speed meets the requirements, the full-load torque is insufficient. In order to meet the torque requirements at full load and the speed requirements at no-load at the same time, thereby achieving the purpose of improving efficiency and reducing energy consumption, it is urgent to develop a drive axle with two speed ratios, that is, use a large speed ratio at full load and use a high speed ratio at no-load. Switch to use a small ratio. Contents of the invention [0003] The invention aims to solve the problems of insufficient...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problems of insufficient driving torque when the commercial vehicle is fully loaded due to the single speed ratio, low driving speed when the commercial vehicle is unloaded, high fuel consumption, and low efficiency in the existing drive axle.

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