Dual-extrusion-rod bypass type magnetorheological damper

Abstract

The invention relates to a dual-extrusion-rod bypass type magnetorheological damper mainly used for overload protection for a damping module in a heavy mechanical system. The damper comprises an end cover, a bolt, a shell, a piston, magnetic isolation gaskets, permanent magnets, isolation rings, magnetorheological fluid, an electromagnetic coil, a sealing ring and a piston rod. The shell is hollow, and an annular channel is formed in the periphery of the shell. Grooves are formed in the two sides of the annular channel. The permanent magnets are installed in the grooves and isolated from the body of the shell through the magnetic isolation gaskets. The piston is also provided with a groove, and the electromagnetic coil is installed in the groove. The end cover and the shell are connected through the bolt to from a sealed cavity filled with the magnetorheological fluid. The permanent magnets and the electromagnetic coil are isolated from the magnetorheological fluid through the isolation rings. The end cover is provided with a through hole. The inner wall of the through hole is provided with the sealing ring. The piston rod and the through hole form a sliding pair. The damper has the advantages that overload protection is achieved, the service life is long, reaction is rapid, and energy consumption is low.

Description

technical field [0001] The invention relates to a magneto-rheological shock absorber with double-exit rods, in particular to a bypass-type magneto-rheological shock absorber with double-exit rods. Background technique [0002] Overload damage often exists in mechanical systems, which leads to various accidents. In the mechanical system, in order to make the movement of the machine more stable, a shock absorber is added to the mechanical system to eliminate part of the vibration. However, while eliminating part of the vibration and improving the stability of the machine, it also poses a certain threat to the entire mechanical system: the mechanical structure and materials of the shock absorber itself will be damaged due to excessive external force, thereby destroying the stability of the entire machine, or even Causes the destruction of the entire machine and poses a threat to the personal safety of the operator. Therefore, certain requirements are put forward for the mecha...

AI Technical Summary

Problems solved by technology

However, while eliminating part of the vibration and improving the stability of the machine, it also poses a certain threat to the entire mechanical system: the mechanical structure and materials of the shock absorber itself will be damaged due to excessive external force, thereby destroying the stability of the entire machine, or even Causes the destruction of the entire machine and poses a threat to the personal safety of the operator

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