Hydraulic shock absorber with active adjustable damping

Abstract

The invention relates to a hydraulic shock absorber with active adjustable damping. The hydraulic shock absorber comprises an oil cylinder, a piston, a one-way valve, a hydraulic motor, a flywheel, a dual-acting hydraulic cylinder, a dual-acting hydraulic cylinder piston, a push rod, a sliding resistor, an electromagnet A, an electromagnet B and a friction plate, wherein the oil cylinder is divided into an upper oil cavity and a lower oil cylinder by the piston; the upper oil cavity is connected with the lower oil cavity through a pipeline and the hydraulic motor; the hydraulic motor is fixedly connected with the flywheel, and is in contact with the friction plate; the dual-acting hydraulic cylinder piston is tightly connected with the dual-acting hydraulic cylinder; the dual-acting hydraulic cylinder is divided into a left cylinder and a right cylinder by the dual-acting hydraulic cylinder piston; the push rod is connected with the dual-acting hydraulic cylinder piston, and protrudes out from two ends of the left cylinder and the right cylinder; the electromagnet A and the electromagnet B are arranged in a manner of opposite polarity; the electromagnet B is connected with the friction plate; the push rod can change the size of the sliding resistor, and changes the action force between the electromagnet A and the electromagnet B to change the friction force between the friction plate and the flywheel; finally the oil fluid resistance in the pipeline caused by the hydraulic motor is changed. According to the hydraulic shock absorber, real-time active adjustable damping of the shock absorber can be achieved.

Description

technical field [0001] The invention relates to a shock absorber device, in particular to a hydraulic shock absorber with actively adjustable damping. Background technique [0002] The automobile shock absorber is installed between the frame and the axle to attenuate the vibration of the vehicle body. The working principle of the traditional shock absorber is: when the suspension of the car is highly compressed, the shock absorber is compressed accordingly, the piston of the shock absorber moves down, the oil pressure in the lower oil chamber rises, and the flow valve and compression valve are opened for unloading; When the vehicle wheel moves down and away from the frame, the shock absorber recovers, the shock absorber piston moves up, the oil pressure in the upper oil chamber rises, and the extension valve and compensation valve open for unloading. [0003] The damping value of the traditional shock absorber is fixed, and there is no function of variable damping. [0004...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention aims to provide a shock absorber device, which is used to solve the problems of traditional shock absorber devices such as unstable performance, non-adjustable damping, complicated structure, and high manufacturing cost.

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