Damping shock absorber

Abstract

The invention belongs to the technical field of mechanical vibration, and discloses a damping shock absorber which comprises an upper shell, a lower shell, a supporting plate, a first connecting rod and a second connecting rod. A first cavity is formed in the upper shell, and a first permanent magnet is arranged in the first cavity. The lower shell is provided with a second cavity. The supporting plate is arranged between the upper shell and the lower shell, and a universal ball is arranged in the middle of the supporting plate. The first end of the first connecting rod is connected with the universal ball, the second end of the first connecting rod is provided with an energy dissipation panel, and a first magnetic liquid is arranged between the energy dissipation panel and the first cavity. The first end of the second connecting rod is connected with the universal ball, the first connecting rod and the second connecting rod are coaxially arranged, the second end of the second connecting rod is provided with a second permanent magnet, and a second magnetic liquid is arranged between the second permanent magnet and the second cavity. According to the damping shock absorber, the equivalent stiffness coefficient of the shock absorber can be effectively changed, the resistance coefficient is increased, multi-dimensional shock absorption is achieved, the shock absorption effect and efficiency of the shock absorber are greatly improved, and the practicability is higher.

Description

technical field [0001] The invention belongs to the technical field of mechanical vibration, and in particular relates to a damping shock absorber. Background technique [0002] The magnetic liquid shock absorber has the characteristics of zero dissipation, sensitivity to inertial force, simple structure, and stable operation. It is suitable for low-frequency, small-amplitude vibrations. The magnetic liquid shock absorber is suitable for space vehicles such as satellite solar panels and space stations. Vibration reduction of the robotic arm, and ground systems such as vibration isolation tables, vibration reduction of high-power antennas, etc. The existing vibration damping structure involves certain defects. During the reciprocating motion, on the one hand, the energy consumption and vibration damping method is single, and hard collisions are prone to occur, which in turn leads to vibration damping failure. In addition, the existing shock absorber has a short reciprocating...

AI Technical Summary

Problems solved by technology

The existing vibration damping structure involves certain defects. During the reciprocating motion, on the one hand, the energy consumption and vibration reduction methods are single, and hard collisions are prone to occur, which in turn leads to vibration reduction failure.

In addition, the existing shock absorber has a short reciprocating motion stroke and low vibration reduction efficiency, which cannot be further intelligentized and cannot meet further higher requirements for vibration reduction effects.

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