Double rod magnetorheological grease damper

Abstract

The invention discloses a dual-rod magneto-rheological grease damper, which comprises: two piston rods, a piston, and a working cylinder; There is a flow gap for magnetorheological grease, and the long axis of the spherical piston is smaller than the length of the working cylinder. Two sets of excitation coils are wound on the spherical piston, and the two sets of excitation coils are distributed along the long axis of the spherical piston. They are respectively placed on both sides of the short axis of the spherical piston, and one end of the two piston rods is respectively fixed on the two ends of the spherical piston. The axes of the two piston rods are coaxial with the long axis of the spherical piston. The other end of the piston rod protrudes from the two ends of the working cylinder respectively through the sealing device and the bearing at both ends of the working cylinder, and the working cylinder is filled with magnetorheological grease.

Description

technical field [0001] The invention belongs to a magneto-rheological damper, in particular to a double-outlet magnetorheological grease damper. [0002] Background technique [0003] Magneto-rheological damper is an intelligent damping device, and its damping force can be remotely adjusted steplessly by controlling the power supply. The working medium of existing magnetorheological dampers is mostly magnetorheological fluid, and magnetorheological fluid It exhibits low viscosity characteristics under the condition of zero magnetic field; it exhibits different viscosities under the action of different strengths of magnetic fields. However, since the sedimentation of the suspended phase in the magnetorheological fluid will affect the performance of the device, for this reason, after the magnetorheological fluid, people have developed another magnetorheological material: magnetorheological grease, because magnetorheological grease The special skeleton structure has high stab...

AI Technical Summary

Problems solved by technology

[0003] Magneto-rheological damper is an intelligent damping device, and its damping force can be adjusted remotely and steplessly by controlling the power supply. The working medium of existing magnetorheological dampers is mostly magnetorheological fluid. It exhibits low viscosity characteristics under the condition of zero magnetic field; and it exhibits different viscosities under the action of different strengths of magnetic fields. However, since the sedimentation of the suspended phase in the magnetorheological fluid will affect the performance of the device, for this reason, after the magnetorheological fluid, people have developed another magnetorheological material: magnetorheological grease, because magnetorheological grease The special skeleton structure has high stability and will not affect the performance of the device due to the suspension phase sedimentation, but the magnetorheological grease has a high viscosity and poor fluidity under the condition of zero magnetic field, while the existing magnetorheological damper Most of them are designed with magnetorheological fluid as the working medium, and the piston of the damper is mostly cylindrical, and the cylindrical piston is difficult to apply to the working medium of magnetorheological grease

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