Electrorheological snubber

Abstract

An electrorheological buffer has a damping continuously adjustable function, is used for various communication and transportation facilities and engineering machines and achieves semi-active control over impact loads borne by the electrorheological buffer. The buffer mainly comprises a buffer piston, a piston rod, an inner cylinder barrel, a middle cylinder barrel, an outer cylinder barrel, a one-way valve, a front insulating bush, a rear insulating bush, a seal ring and the like, wherein the one-way valve, the front insulating bush, the rear insulating bush and the seal ring are used in the buffer recovery process. The inner cylinder barrel and the middle cylinder barrel of the buffer are used as electrodes, and an annular space formed by the inner cylinder barrel and the middle cylinder barrel of the buffer serves as a high-voltage direct-current electric field. By means of continuous control of an external electric field, damping force of the buffer can be continuously controlled and adjusted; an annular space formed by the middle cylinder barrel and the outer cylinder barrel is a liquid storage chamber and is used for storing and supplementing liquid needed by a working chamber when the piston rod enters and leaves the buffer; the three cylinder barrels of the buffer are separated and positioned at certain gaps through the front insulating bush and the rear insulating bush; the one-way valve is arranged on the buffer piston and fixed through the piston rod, and the one-way valve is closed in the buffer recovery process and opened in the compression process.

Description

technical field [0001] The invention is a novel damping continuously adjustable buffer, which is used in various transportation equipment and engineering machinery to realize semi-active control of various impact loads it receives. Background technique [0002] All kinds of buffers are widely used in transportation equipment, such as vehicles, aircraft, and ships. By prolonging the action time of impact loads, absorbing and converting the energy of impact loads, the purpose of slowing down the rigid collision of equipment can be achieved. [0003] At present, the common buffers are generally rubber buffers, metal spring buffers, hydraulic (pneumatic) buffers and their combined buffers. The rubber buffer has simple structure, low manufacturing cost, good elasticity and sufficient strength, and is widely used in many industrial equipment and daily life. However, rubber buffers have limited elastic deformation and limited kinetic energy absorption, and are most suitable for ap...

AI Technical Summary

Problems solved by technology

[0004] A common feature of the above-mentioned buffers is that the buffering effect cannot be properly adjusted according to the change of the impact load, or the adjustment range is very limited, because once these buffers are made, their stiffness and damping characteristics are fixed.

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