A kind of shear magneto-rheological buffer compensator

Abstract

The invention provides a shear type magnetorheological buffer compensator, which comprises a cylinder body, a piston rod, a first piston, a second piston, an internal cylinder, a spring, hydraulic oil, an excitation coil and magnetorheological fluid, wherein two ends of the cylinder body are provided with a first cylinder cover and a second cylinder cover; the first piston is arranged inside the cylinder body, and a cavity for accommodating hydraulic oil is formed between the first piston and the first cylinder cover; the internal cylinder is fixedly arranged inside the cylinder body and is positioned between the second cylinder cover and the first piston; a damping channel is formed between the internal cylinder and the cylinder body; the magnetorheological fluid is filled in the internal cylinder; two ends of the internal cylinder are provided with through holes communicated with the damping channel; one end of the piston rod is fixed to the first piston and the other end of the piston rod movably passes through the internal cylinder to reach the exterior of the second cylinder cover; the second piston is fixedly sleeved on the piston rod and is tightly embedded in the internal cylinder; the spring is sleeved on the piston rod; and the excitation coil surrounds the cylinder body and two ends of the excitation coil are inserted into the cylinder body to be connected with a power supply. The invention has the advantages that: the shear type magnetorheological buffer compensator can change buffering power, and is suitable for various complex working conditions in a high-pressure hydraulic system.

Description

technical field [0001] The invention relates to a buffer device, in particular to a shear type magneto-rheological buffer compensator. Background technique [0002] At present, the buffer device in the high-pressure hydraulic system mainly adopts passive rubber, spring and air bag structure. The passive buffer device has the defects of non-adjustable damping coefficient, and the rubber has the defects of poor temperature resistance, poor wear resistance and easy aging; the spring has buffer force. The defect that the sharp fracture is easy to cause damage to the surrounding components during fatigue fracture; the airbag has the defect that the load is small, so the existing passive buffer device cannot adapt to various complex working conditions in the high-pressure hydraulic system. Contents of the invention [0003] The purpose of the present invention is to provide a shear type magneto-rheological buffer compensator, which can adjust the damping coefficient and is suita...

AI Technical Summary

Problems solved by technology

[0002] At present, the buffer device in the high-pressure hydraulic system mainly adopts passive rubber, spring and air bag structure. The passive buffer device has the defects of non-adjustable damping coefficient, and the rubber has the defects of poor temperature resistance, poor wear resistance and easy aging; the spring has buffer force. The defect that the sharp fracture is easy to cause damage to the surrounding components during fatigue fracture; the airbag has the defect that the load is small, so the existing passive buffer device cannot adapt to various complex working conditions in the high-pressure hydraulic system

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