Self-resetting damper utilizing gear to amplify displacement

Abstract

The invention relates to a self-resetting damper utilizing a gear to amplify displacement. Belongs to the technical field of energy dissipation. Comprising an energy consumption module, a displacement amplification module and a self-resetting module, the energy consumption module comprises a cylinder body, viscous damping fluid, a piston rod, a piston and a sealing end plate; the displacement amplification module comprises a gear set, a guide rod and a rack; the self-resetting module comprises a resetting end plate and a disc spring. And the energy consumption module is connected with the displacement amplification module and the self-resetting module into a whole through the four guide shafts and the end plates. The guide rod is connected with the piston rod of the viscous damper through the gear set comprising the large gear and the small gear, and the displacement amplification coefficient is controlled by controlling the radius ratio of the large gear and the small gear. The energy dissipation capacity of the damper mainly comes from energy dissipation of the viscous damper, and the self-resetting capacity is provided by the combined disc spring. Meanwhile, through the design of the end plates and the check blocks, no matter the damper is in a pulled state or a pressed state, the disc springs are all in the pressed state, and the damper has the self-resetting capacity.

Description

technical field [0001] The invention relates to a self-reset damper which utilizes gears to amplify displacement. It belongs to the technical field of energy dissipation and shock absorption. Background technique [0002] Earthquake disasters are sudden, unpredictable and extremely destructive. Especially when a medium or large earthquake occurs, the energy released by the earthquake is huge, and the structure will be damaged greatly. According to the current fortification standards, the structure can be guaranteed not to collapse under a major earthquake, but the large plastic deformation caused by it is difficult to repair and can only be reconstructed, resulting in a serious waste of resources. [0003] Under the action of small earthquakes, it is difficult for traditional dampers to give full play to their energy consumption and shock absorption, the structure cannot achieve the expected shock absorption effect, and the cost is simply increased; under the action of ext...

AI Technical Summary

Problems solved by technology

According to the current fortification standards, the structure can be guaranteed not to collapse under a major earthquake, but the large plastic deformation produced by it is difficult to repair and can only be rebuilt, resulting in a serious waste of resources

[0003] Under the action of small earthquakes, it is difficult for traditional dampers to give full play to their energy-dissipating and shock-absorbing effects, and the structure cannot achieve the expected shock-absorbing effect, which simply increases the cost; If the displacement or damping force of the damper exceeds the limit capacity, the damper will fail, lose the energy dissipation and shock absorption effect, and make the structure face the risk of damage, damage or even collapse

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