Rotatable reduction friction composite metal damper

Abstract

The invention discloses a rotatable reduction friction composite metal damper which comprises a shell, a gear block, an upper sliding guide rod and a lower sliding guide rod. One side of the upper sliding guide rod is engaged with the gear block, the other side of the upper sliding guide rod is connected with the shell through a third friction plate and a fourth friction plate, and the contact face of the third friction plate and the fourth friction plate is in a sawtooth shape. One side of the lower sliding guide rod is engaged with the gear block, the other side of the lower sliding guide rod is connected with the shell through a first friction plate and a second friction plate, and the contact face of the first friction plate and the second friction plate is in a sawtooth shape. The rotatable reduction friction composite metal damper has a good energy dissipation effect, energy is dissipated in stages in various forms of the friction plates, steel ring pieces and the gear block, andself-resetting can be achieved due to counterforce generated by friction wheels; any energy dissipation component can be taken down and replaced after being damaged, damping can be adjusted by adjusting the friction force between the friction plates and replacing the steel ring pieces with steel ring pieces of different yield points, and replacement is convenient; and the damper is simple in structure, parts are easy to machine, only bolt connection and clamping groove alignment are adopted, field installation is facilitated, and use is convenient.

Description

technical field [0001] The invention relates to a damper, in particular to a rotatable reduction friction composite metal damper. Background technique [0002] Vibration exists widely in various fields. Working machine tools, moving locomotives, buildings affected by earthquakes and wind vibrations are all adversely affected by vibrations, and most vibrations are unavoidable and can only be reduced in various ways. Small vibration damages the structure, and adding a damper becomes one of the effective methods. [0003] As an energy-dissipating device, the friction-type metal damper can dissipate the adverse effects of vibration through its own plastic deformation. Because of its strong energy-dissipating capacity, the load size and frequency have little effect on its performance, and its structure is simple and easy to install. , The cost is low, so it is widely used in the field of energy dissipation and vibration reduction. According to the theory of tribology, friction ...

AI Technical Summary

Problems solved by technology

[0004] However, the friction area of ​​the traditional plate friction damper will change to a certain extent during the energy consumption process, the effective area of ​​friction is not constant, the damage degree is the most serious in the middle of the friction plate, and the damage degree at both ends is relatively light. to fully utilize and cause waste

Moreover, the traditional metal damper has a single energy consumption method and cannot dissipate energy in stages. After a major earthquake, the traditional metal damper will cause damage to varying degrees due to its function, and lose part of its energy dissipation capacity in the following aftershocks.

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