Hydrodynamic retarder with front stator

Abstract

The invention discloses a hydrodynamic retarder with a front stator. The retarder comprises a retarder shaft, a front bearing, a stator, a rotor, a stator end cover, a body, a separation spring, an annular piston, a meshing gear, a locking sliding framework, a return spring, a synchronous locking ring, a needle roller bearing, an outer oil seal and the like, wherein a high-pressure oil outlet cavity B is closed by the stator and the stator end cover, a low-pressure oil inlet cavity A is formed by closing the retarder shaft; the stator is arranged in front of the rotor, the rotor is arranged behind the stator, and the stator and the rotor are arranged in a closed cavity in the body; a sealing ring is arranged between the rotor and the stator and is used for isolating a working cavity C fromthe oil inlet cavity A; when no load exists, a meshing gear is pushed by a separation spring to move rightwards to a right positioning dead point, the meshing gear is separated from the rotor, the rotor does not rotate with the shaft any more, and thereby no-load loss can be caused even though a small amount of media exist in the working cavity C; an oil duct is arranged in front of the stator, the radial size is reduced, and interference with a transmission shaft is avoided. The retarder is advantaged in that the weight is reduced to the maximum extent, noise is reduced, strength and reliability are improved, and no-load loss is reduced.

Description

technical field [0001] The invention belongs to the technical field of automobile engineering, and relates to a hydraulic retarder at the front of the stator, in particular to a hydraulic retarder at the front of the stator and an integral separable rotor at the rear; The input gear of the speed reducer is connected with the retarder shaft in a torsion-proof manner. Background technique [0002] A hydraulic retarder is a retarder that reduces the speed of a vehicle through a hydraulic device. The hydraulic retarder is also called a hydraulic retarder. [0003] If the speed of the car is too fast when turning or going downhill, it is easy to cause traffic accidents, and frequent use of the driving brake for a long time will not only cause serious wear and tear, but more importantly, the brakes will overheat, and even the brakes will fail due to serious thermal degradation of the brakes. The serious consequences of fire, so non-contact, active heat dissipation devices such as...

AI Technical Summary

Problems solved by technology

[0008] The invention discloses a hydraulic retarder at the front of the stator to solve the no-load loss caused by the low torque of the retarder in the prior art and the anti-torsion connection between the retarder input gear and the retarder shaft. Issues such as difficulty in spatial layout of rear-mounted hydraulic retarder in parallel connection of gearboxes

Images