A two-way controllable magneto-rheological damper without leakage and without sealing ring

Abstract

The invention discloses a two-way controllable magneto-rheological damper without leakage and without sealing ring, which comprises a cylinder body, a piston, and a piston rod. The left and right ends of the cylinder body are respectively airtightly connected with a left bellows and a right bellows. The left bellows is airtightly connected with the left end cap, the left and right end caps are airtightly connected with the piston rod, the left and right bellows are airtightly connected with the left and right end caps, and the centers of the left and right end caps are airtightly connected with the piston rod; Connecting pipe; a ring-shaped left coil and a ring-shaped right coil are fixedly connected inside the cylinder, and the gap between the inner hole of the ring-shaped coil and the piston rod forms a damping channel; the connecting pipe is provided with a left one-way The valve and the right check valve piston are located between the left check valve and the right check valve. The present invention adopts the bellows as the seal, which avoids the leakage between the piston rod and the sealing ring due to wear, and the bellows does not bear the working pressure, as long as the bellows is within the fatigue life of the damper, the damper will not leakage.

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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