Controllable dicoupling film and throttling hole type semi-active suspension

Abstract

The invention discloses controllable dicoupling film and throttling hole type semi-active suspension which comprises a casing with an opening in the top end, a rubber main spring arranged at and used for blocking the opening in the top end of the casing, a reinforcing block arranged on the rubber main spring, a connecting rod fixedly connected with the reinforcing block and a rubber base film arranged at the bottom of the inner side of the casing, wherein the casing comprises an upper casing and a lower casing connected through a bolt; a sealed cavity filled with an ethylene glycol liquid is formed between the rubber main spring and the rubber base film; a flow passage plate dividing the cavity into an upper cavity and a lower cavity is arranged in the cavity; an air cavity and a throttling hole are formed in the flow passage plate in a staggered manner; a dicoupling film is arranged at the top of the air cavity; the air cavity is communicated with a vacuum valve arranged outside the casing through an airflow passage; the suspension further comprises an electromagnetic valve for driving the rubber base film to close or open the throttling hole; air outlets are formed in the lower casing. The suspension with the structure has the advantages of low energy consumption, long service life and good vibration isolation effect.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a controllable decoupling membrane and a throttling hole type semi-active mount. Background technique [0002] With the continuous development of automobiles, the safety and comfort of automobiles have become more and more concerned issues. The vibration of the automobile engine will be transmitted to the body through the engine mount, which will not only affect the service life of the automobile parts but also affect the ride comfort of the occupants. Therefore, it has become more and more important to develop better mounts to isolate the transmission of engine vibrations to the body. Over the years, the mounts have been continuously developed, from the initial rubber mounts to hydraulic mounts, and then to semi-active mounts and active mounts. Due to its simple structure and low cost, rubber mounts are still widely used so far, but the disadvantage of rubber mounts is that thei...

AI Technical Summary

Problems solved by technology

Among them, the liquids of electrorheological mounts and magnetorheological mounts are easy to precipitate, and the use effect is not good; other semi-active mounts that control the stiffness of the decoupling membrane or control the inertial channel or control the orifice can only meet fewer working conditions , For example, most of them are only designed for engine idling vibration to reduce the vibration of the engine at idling speed, but it cannot meet the performance requirements of other working conditions of the car such as starting, acceleration and deceleration, impact, etc.

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