A magnetic planar magnetic liquid damping shock absorber

Abstract

The invention discloses a magnetic liquid damping shock absorber with a magnetic plane, belongs to the field of vibration of mechanical engineering, and in particular relates to damping shock absorption of magnetic liquid. The shock absorber adopts a cylindrical permanent magnet, adsorbing the magnetic liquid on two end surfaces, as an inertial mass block; the cylindrical permanent magnet suspends by the magnetic liquid on the end surfaces at the bottom of a non-magnetism-conducting shell; the other end of the cylindrical permanent magnet is in contact with the inner wall of a non-magnetism-conducting end cover with a concentric ring ripple structure; the inner side of the bottom surface of a non-magnetism-conducting pad cover is in rigid connection with a permanent magnet sheet; magnetic poles of the permanent magnet sheet and the cylindrical permanent magnet in the non-magnetism-conducting shell are arranged in a way that like poles are in the same direction along the axis; the cylindrical permanent magnet as the inertial mass block carries out planar motion at the center position by restoring force provided by attraction force between permanent magnet materials; the magnetic liquid is continuously extruded mainly through the concentric ring ripple structure on the inner wall of the non-magnetism-conducting end cover to consume energy in the motion process, thus playing a role in shock absorption. The damping shock absorber is simple in structure, high in reliability and excellent in damping effect.

Description

technical field [0001] The invention relates to a damping shock absorber, in particular to a magnetic plane magnetic liquid damping shock absorber. Background technique [0002] Magnetic liquid is a stable colloidal suspension formed by dispersing nano-ferromagnetic or ferrimagnetic particles coated with surfactants in a liquid carrier liquid. The principle of second-order buoyancy of magnetic liquid means that magnetic liquid can be immersed in The permanent magnet whose specific gravity is larger than itself is suspended, so that the friction form between the permanent magnet and its contact surface can be changed, that is, the friction between solids is transformed into friction between liquid and solid, and there is only a small amount of magnetic liquid to avoid contact with it, so that Permanent magnets adsorbed with magnetic fluid are highly sensitive to inertial forces. [0003] Magnetic liquid vibration damping is a new type of vibration damping method, which is hi...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the vibration pickup system of the existing planar vibration energy harvester mostly adopts the mechanical connection between the spring and the permanent magnet, which shows the disadvantages of poor fatigue resistance, high noise, relatively poor stability, and the pickup The sensitivity of the vibration system is relatively low, and the efficiency of vibration reduction and energy absorption is low

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