Turn flow type hydraulic limited slip differential

Abstract

The invention discloses a turn flow type hydraulic limited slip differential which comprises a shell, a differential mechanism and a limited slip friction pair. The differential mechanism and the limited slip friction pair are located in the shell. The turn flow type hydraulic limited slip differential further comprises a circular piston and an oil conveying disc. The shell is internally provided with a circular groove. The circular piston is placed in the circular groove. The oil conveying disc is installed on the shell. The shell rotates coaxially with the oil conveying disc. The oil conveying disc is provided with a circular oil inlet groove. The shell is internally provided with an oil inlet channel which communicates the circular groove with the circular oil inlet groove so that high pressure oil from a hydraulic system enters the circular groove through the circular oil inlet groove and the oil inlet channel so as to push the circular piston to compress the limited slip friction pair. The oil conveying disc is further provided with a circular oil return groove. High pressure oil leaked at a gap between the oil conveying disc and the shell returns to the hydraulic system through the circular oil return groove. The compressing force of the limited slip friction pair is controllable and adjustable. The hydraulic operating mechanism of the differential is small in size, and the pressure oil leaked can be recycled, so that the pressure oil is prevented from being leaked out of the differential.

Description

technical field [0001] The invention relates to a backflow plate type hydraulic limited-slip differential, which is mainly used in vehicles, wheeled engineering machinery and wheeled military equipment, and belongs to the field of mechanical engineering. Background technique [0002] The differential is an important part of the vehicle's power transmission system and plays a very important role in the vehicle. The initial function of the ordinary differential is to satisfy the pure rolling driving of the wheels on both sides as far as possible when the speed of the left and right driving wheels is inconsistent under the working conditions such as turning, so as to reduce the driving resistance and tire wear. Ordinary differentials are mainly composed of housings, planetary gear shafts, planetary gears and side gears. Its characteristic is that the differential speed is not bad, that is to say, if the influence of internal friction is not considered, the left and right h...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the existing differentials, the present invention proposes a return type hydraulic limited-slip differential. The limited-slip differential only produces a limited-slip differential when the drive wheels on both sides are on an asymmetrical road surface and one side of the drive wheel slips. Slip action, torque output characteristics can realize active control, locking coefficient can be adjusted by external hydraulic control system, and solve the problem of hydraulic oil leakage recovery

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