Secondary vibration-damping type rubber spring structure for active suspension

Abstract

The invention discloses a secondary vibration-damping type rubber spring structure for an active suspension in the technical field of the vehicle active suspension. A main rubber spring is accommodated in the middle of an outer rigid ring; inner rigid tubes arranged horizontally front and back pass through the main rubber spring; horizontally arranged rigid extending plates are fixedly connected to the left and right sides of the inner rigid tubes, wherein the two rigid extending plates are arranged symmetrically left and right relative to the centers of the inner rigid tubes; and a pluralityof communication holes in an up-down communication manner are distributed on each rigid extending plate uniformly. The main rubber spring passes through each communication hole. The communication holes formed in the two rigid extending plates are arranged symmetrically left and right relative to the centers of the inner rigid tubes. Because of connection of the main rubber spring and rigid extending plates, the stress concentration is avoided. When the inner rigid tubes drive the rigid extending plates to move up and down under the forces, the stresses on the main rubber spring become uniform,so that the performance of the rubber spring is improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle active suspension, in particular to a rubber spring structure for active suspension. Background technique [0002] Suspension is the general term for the force transmission connection device between the frame (or load-bearing body) and the axle (or wheel) of the vehicle. Its function is to transmit the force and moment acting between the wheel and the frame, and the buffer The impact force transmitted to the frame or body by the uneven road surface, and attenuates the vibration caused by it, so as to ensure the smooth running of the car. In the document with Chinese patent application number 201810431986.6, an active suspension with different axes of coil spring and rubber spring is proposed. A rubber spring is arranged beside the active force actuator of the active suspension. The rubber spring consists of a rigid outer ring , rubber main spring, rigid guide rail and rigid inner tube, the rigid ...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem of unsatisfactory rubber spring performance and short service life of the rubber main spring in the above-mentioned active suspension due to uneven deformation of the rubber material in the horizontal direction when it is working, and proposes a new type of rubber for two-stage vibration-damping active suspension. spring structure

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