Inertial resistance type vibration absorber

Abstract

The invention relates to an inertial resistance type vibration absorber. The inertial resistance type vibration absorber comprises a sealed body, a piston mass block, two springs and an antifriction sealing device, the sealing body is a sealed cavity composed of an upper wall, a lower wall and a side wall, the upper surface and the lower surface of the piston mass block are of a symmetrical downward concave structure, axial damping holes are processed at the bottom of the downward concave structure, the piston mass block is hermetically connected with the side wall of the sealed body via the antifriction sealing device, the center of each of the upper side and the lower side of the piston mass block is connected with one spring, the other ends of the two springs are connected with the upper wall and the lower wall respectively, the two springs support the piston mass block in the middle of the sealed body, the piston mass block divides the sealed body into an upper cavity and a lower cavity, the damping holes of the piston mass block penetrate through the upper cavity and the lower cavity, and the liquid level forms an air chamber between the upper cavity and the upper wall after oil liquid fully fills the lower cavity. The inertial resistance type vibration absorber is capable of converting main vibration energy of equipment subjected to vibration reduction into kinetic energy of an inertial element of the inertial resistance type vibration absorber, and utilizes a self damping system to achieve substantial vibration reduction of the equipment and a system.

Description

technical field [0001] The invention relates to the application field of mechanical vibration and vibration reduction, in particular to an inertial resistance type vibration absorber for vibration reduction and vibration absorption. Background technique [0002] One of the main purposes of studying vibration is to control the vibration so as to meet the expected performance index requirements. Vibration can be divided into beneficial and harmful. People sometimes use vibration to achieve the desired purpose, such as using resonance to improve efficiency, using vibration principles to make various vibration machines, etc.; in more cases, vibration is harmful, it shortens the product. And the service life of the structure, resulting in product and structure damage. Therefore, the harmful vibration must be minimized until it is eliminated, which is the problem of vibration reduction. In a broad sense, vibration control should include the above two aspects, but vibration contr...

AI Technical Summary

Problems solved by technology

An important cause of vehicle vibration is the resonance of components, and the resonance of components may even cause early damage to vehicle components and reduce the driving safety of the vehicle.

In the field of bridges, due to the existence of resonance, the light ones lead to shortened service life of the bridge, and the severe ones cause bridge collapse; in the field of electrical engineering and mechanical transmission, vibrations have caused the impact of reduced product life and system reliability.

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