Leakage-free seal-ring-free two-way controllable magnetorheological damper

Abstract

The invention discloses a leakage-free seal-ring-free two-way controllable magnetorheological damper which comprises a cylinder body, a piston and a piston rod, wherein the left end and the right end of the cylinder body are respectively connected with a left corrugated pipe and a right corrugated pipe hermetically, the left corrugated pipe is hermetically connected with a left end cover, the left end cover and a right end cover are hermetically connected with the piston rod, the left corrugated pipe and the right corrugated pipe are hermetically connected with the left end cover and the right end cover, and the centers of the left end cover and the right end cover are hermetically connected with the piston rod; a communicating pipe is arranged on the cylinder body; a left circular coil and a right circular coil are fixedly connected inside the cylinder body, and gaps between the inner holes of the circular coils and the piston rod form a damping channel; and a left one-way valve and a right one-way valve are arranged on the communicating pipe, and the piston rod is located between the left one-way valve and the right one-way valve. In the invention, the corrugated pipes are used as sealing elements, leakage caused by wearing between the piston rod and a seal ring is avoided, and the corrugated pipes do not bear working pressure. The damper can not leak within the service life of the corrugated pipes.

Description

technical field [0001] The invention relates to a damper, in particular to a two-way controllable magneto-rheological damper with no leakage and no sealing ring. Background technique [0002] Magneto-rheological damper is a semi-active damping device. Its damping force is continuously adjustable with the coil current. Magneto-rheological damper has wide adjustment range, fast response speed and low energy consumption. It is widely used in automobiles, In the field of structural vibration reduction control such as bridges and buildings, it plays an important role in structural vibration reduction. The basic composition of the magnetorheological fluid is that magnetic tiny particles are suspended in the base fluid. When the magnetorheological damper with the usual structure is reciprocating, the particles will continuously wear the piston rod and the sealing ring. The greater the output force, the greater the wear. Fast, it starts to leak very quickly, resulting in the life o...

AI Technical Summary

Problems solved by technology

The basic composition of the magnetorheological fluid is that magnetic tiny particles are suspended in the base fluid. When the magnetorheological damper with the usual structure is reciprocating, the particles will continuously wear the piston rod and the sealing ring. The greater the output force, the greater the wear. Fast, starts to leak very quickly, resulting in the life of the magneto-rheological damper is usually much shorter than that of the oil damper

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