Cylinder body inner cavity self-compensation type magnetorheological damper

Abstract

The invention relates to the field of magnetorheological dampers, and particularly discloses a cylinder body inner cavity self-compensation type magnetorheological damper which comprises a damping sleeve, a piston rod is installed at one end of the damping sleeve, and a damper piston is installed at the position, located in the damping sleeve, of one end of the piston rod. A pressure storage bin is installed at the position, located in the damping sleeve, of one end of the first lifting lug, a fixed plug plate is arranged at the position, located on the inner side of the damping sleeve, between the pressure storage bin and the damper piston, and a blocking cover is arranged on the side, close to the damper piston, of the liquid return hole. A reset spring is connected between the blocking cover and the fixed plug plate. The flowing resistance of the magnetorheological fluid is increased through the arranged fixed plug plate and the pressure storage bin, so that the good flowing effect of the damping fluid can be achieved without increasing the length of the damping sleeve, and the blocking and buffering effect on the flowing of the magnetorheological fluid in the forward direction can be achieved through the liquid inlet hole and the liquid return hole formed in the fixed plug plate.

Description

technical field [0001] The invention relates to the field of magnetorheological dampers, in particular to a self-compensating magnetorheological damper for a cylinder cavity. Background technique [0002] The magnetorheological damper is a device that provides resistance to movement and consumes movement energy. It is not a new technology to use damping to absorb and absorb shocks. Various dampers (or shock absorbers) have been used in aerospace, aviation, military, guns, automobiles and other industries to reduce vibration and energy dissipation. Magneto-rheological The damper is mainly used to control the vibration generated by the system components to meet the requirements of various equipment for different working conditions and different environments. Therefore, the performance of the magnetorheological damper directly affects the static and dynamic characteristics of various systems and the reliability of work. It is the core unit in the vibration damping system. [...

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Problems solved by technology

[0003] However, most of the magnetorheological dampers currently designed use a circular liquid flow damping channel with a single excitation coil. Therefore, when it is necessary to control the enhancement of the damping effect, it is necessary to increase the effective damping gap length, but this will significantly increase the magnetic flow. The volume of the variable damper occupies more installation and use space, and the manufacturing cost also increases accordingly. In a specific space such as the cylinder block, the traditional magneto-rheological damper cannot achieve a good effect

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