A hydraulic bushing

Abstract

The invention relates to the technical field of damping bushing manufacture, and discloses a hydraulic bushing, which includes an outer glued part and an inner glued part. The outer glued part includes an outer pipe and an outer rubber body, and the outer rubber body is glued on the inner wall of the outer pipe. The inner glued part includes a middle pipe, an inner pipe and an inner rubber body. The inner pipe is penetrated in the middle pipe. There are upper through holes and lower through holes oppositely arranged on the pipe wall of the middle pipe. The inner rubber body is glued on the middle pipe and the inner rubber body. Between the inner tubes, the inner rubber body is provided with an upper groove and a lower groove, and the opening of the upper groove extends into the upper through hole, and the opening of the lower groove extends into the lower through hole. The inner glued part is embedded in the outer glued part, and the upper groove is surrounded by the inner wall of the outer glued part to form an upper chamber, and the lower groove is surrounded by the inner wall of the outer glued part to form a lower chamber. The upper chamber and the lower chamber Connected, both the upper chamber and the lower chamber are filled with sealing liquid. The hydraulic bushing provided by the invention has a simple structure, is easy to produce, can realize a damping function, and provides good vibration reduction and vibration isolation effects.

Description

a hydraulic bush technical field [0001] The present invention relates to the technical field of automobile manufacturing, in particular to a hydraulic bushing. Background technique In the design of vehicle suspension, flexible connections such as rubber bushings are usually used to meet the needs of vehicle vibration and noise reduction, and Obtain the desired suspension kinematics. However, the existing rubber bushing not only has poor vibration damping effect, but also needs to be matched with a booster cylinder. Only use can meet the requirements, and the lack of damping function, it is necessary to provide damping by adding a shock absorber, due to the rubber lining Due to the constraints of assembly error and motion coordination between the sleeve and the shock absorber, it is still difficult to achieve the required damping after adding the shock absorber. Effect. [0003] Therefore, a new type of hydraulic bushing is urgently needed to solve the above problems...

AI Technical Summary

Problems solved by technology

However, the existing rubber bushing not only has poor vibration damping effect, but also needs to be used with a booster cylinder to meet the requirements, and lacks damping function, so an additional shock absorber needs to be added to provide damping, because the gap between the rubber bush and the shock absorber Due to the constraints of assembly error and motion coordination, it is still difficult to achieve the required damping effect after adding a shock absorber

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