Integrated engine flywheel electromagnetic liquid cooling retarder

Abstract

An integrated engine flywheel electromagnetic liquid cooling retarder belongs to the field of automobile brake, and structurally includes a retarder rotor, a retarder stator, a rotor bracket, a startup disk, a bottom magnetic circuit, a retarder coil and a fixed disk, wherein the retarder rotor consists of salient pole rotors and a non-magnetic conductive connecting disk, and is connected with a crankshaft through the rotor bracket, the startup disk and a connecting flange; and a flywheel consists of the retarder rotor, the rotor bracket and the startup disk. According to the invention, the retarder is placed between an engine and a clutch, and has the function of the flywheel and the function of the retarder rotor after the improvement on the flywheel; and compared with an integral transmission retarder, the integrated engine flywheel electromagnetic liquid cooling retarder solves the problem of impact on a gearbox during shifting, is mounted at the rear end of the engine, enhances the brake effect of the retarder in virtue of the function of speed reduction (namely, torsion amplification) of a transmission, and is simple to control, small in size, and light, adopts the liquid cooling for heat dissipation, and is safe and reliable.

Description

technical field [0001] The invention relates to an automobile retarder, in particular to an integrated clutch that generates eddy current braking torque by cutting magnetic induction lines on a rotating and non-contact metal arc surface, which is cooled by circulating liquid and has a salient pole structure fluid. The cold retarder belongs to the auxiliary braking device of the automobile. Background technique [0002] The eddy current retarder is a kind of auxiliary braking device for automobiles. When it works, the rotor rotates with the main shaft of the vehicle, and the air gap flux density changes periodically with the rotation of the rotor, thereby generating induction on the inner surface of the stator and within a certain depth range. The electromotive force generates eddy currents, thereby generating braking torque, and the heat generated is dissipated by the water in the water channel built into the retarder stator, thereby achieving the effect of deceleration and ...

AI Technical Summary

Problems solved by technology

[0004] The patent application number is 200810132271.7, and the invention patent named "Front Type Liquid-cooled Permanent Magnetic Retarder of Gearbox" discloses a front type retarder. Although the front retarder can be realized, it works with The cylinder connects the high-speed rotating clutch plate with the stationary clutch plate. Once the friction plate contacts, the rotor of the retarder will start to rotate immediately, and the retarder will generate braking torque. Although this structure is added with a clutch device, it avoids the friction of the gear. Box impact, but the life of the driven friction plate in the added clutch is low; The structural eddy current retarder has a simple structure and is easy to brake the vehicle, but the mass of the rotor of this structure is large, which brings additional moment of inertia to the vehicle

[0005] The current front-mounted retarder is installed between the gearbox and the clutch. The moment of inertia brought about by the rotor of the retarder when it rotates with one shaft of the gearbox brings a greater impact on the shifting of the gearbox, and the rotor is not running smoothly. Short service life and high maintenance frequency

Images