Multidirectional adjustable tuning dynamic damper

Abstract

The invention relates to a multidirectional adjustable tuning dynamic damper. The multidirectional adjustable tuning dynamic damper comprises an installation supporting seat (1) and a plurality of mass spring damping pieces, the mass spring damping pieces are vertically or horizontally installed on the installation supporting seat (1), and each mass spring damping piece comprises an adjustable mass block (4) and a hollow damping spring (7). Vibration with different frequencies in different directions is controlled by adjusting the quantity and the installation positions of the mass spring damping pieces on the installation supporting seat (1), selecting the mass of the adjustable mass blocks (4) and selecting the rigidity of the hollow damping springs (7). Compared with the prior art, the multidirectional adjustable tuning dynamic damper has a good vibration damping effect on vibration of different frequency bands in multiple directions of a main vibration system, can adjust the direction and the inherent frequency of the mass spring damping pieces according to different modal shapes and modal frequencies of the main vibration system, and has the advantages of being easy to install, high in structural reliability, good in adjustability, small in occupied size, and good in vibration reduction effect.

Description

technical field [0001] The invention relates to the technical field of vibration reduction and noise reduction for industrial equipment, and mainly relates to a multi-directional adjustable tuning dynamic damper. Background technique [0002] Vibration is a common phenomenon in production and life, especially with the current development of manufacturing and technology, the operating speed of equipment continues to increase, and the vibration of mechanical equipment has received more and more attention. Vibration will not only affect the accuracy and work of the equipment If the stability is greatly affected, noise problems will inevitably occur, which is harmful to the normal work and even health of operators. In order to suppress harmful vibration, the tuned dynamic damper has been widely used as an effective measure for vibration and noise reduction devices in machinery manufacturing, transportation, aerospace and other related equipment. At present, the traditional tuned...

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Problems solved by technology

The multi-directional damping spring isolator can indeed achieve horizontal and vertical vibration reduction, but the spring damping unit in this patent is difficult to adjust according to the vibrations of different directions and frequencies in the main vibration system, especially difficult for the vibration in this patent The natural frequency of horizontal vibration is adjusted, which may result in the result that the vibration absorption effect on vibration in a certain direction is not obvious

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