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Displacement amplification type rotary friction damper

A friction damper, rotary technology, applied in building types, protective buildings/shelters, buildings, etc., can solve the problems of easy displacement of the damper, poor energy consumption, unfavorable promotion and application, etc., and achieve good quality. Amplification effect, strong energy consumption ability, avoiding the effect of excessive displacement stroke

Inactive Publication Date: 2019-05-28
GUANGZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing dampers are difficult to play a full role under the action of small earthquakes, and the energy dissipation capacity is poor; the displacement of the damper is prone to failure when the earthquake exceeds the expectation. If the damper with a larger stroke is used, the cost will be too high. Good for promotion and application

Method used

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  • Displacement amplification type rotary friction damper
  • Displacement amplification type rotary friction damper
  • Displacement amplification type rotary friction damper

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Embodiment Construction

[0017] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0018] In order to facilitate a unified review of the various reference signs in the drawings of the specification, the unified description of the reference signs appearing in the drawings of the specification is as follows:

[0019] 1. Ball screw; 2. Ball nut; 3. Annular steel plate; 4. Friction plate; 5. Fixed steel plate; 6. Pre-tightening bolt; 7. Flat bottom plate; 8. Mounting hole; ; 10, top plate; 11, vertical plate; 12, thrust bearing.

[0020] combine figure 1 , figure 2 , image 3 As shown, a rotary friction damper with displacement amplification includes a base, a movable ball screw, a ball nut threaded with the ball screw, and a ring-shaped steel plate fixed on the end face of the ball nut. Fixed steel plates on the base, friction plates. The ball screw can reciprocate linearly in the horizontal direction, the ball nut is ...

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Abstract

The invention relates to a displacement amplification type rotary friction damper. The displacement amplification type rotary friction damper comprises a base, a movably mounted ball screw, a ball nutin threaded connection with the ball screw, a circular steel plate fixed on the end surface of the ball nut, a fixed steel plate placed on the base as well as a friction plate, wherein the ball screwpenetrates through the circular steel plate through a center through hole in the circular steel plate; an arc-shaped groove is formed in the fixed steel plate; the ring-shaped friction plate is fixedon the arc-shaped groove; the circumferential side surface of the circular steel plate is contacted with the friction plate; the fixed steel plate, the base and the circular steel plate are relatively fixed in the axial direction of the ball screw. The damper cannot be affected by friction travel, and the friction damper can be effectively prevented from failing due to overlarge displacement travel. The invention belongs to the technical field of energy dissipation and earthquake reduction of building structures.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of building structures, in particular to a displacement amplifying rotary friction damper. Background technique [0002] In order to reduce the damage to building structures caused by earthquakes, energy dissipation and shock absorption technologies are more and more widely used. There are many kinds of dampers based on passive energy dissipation and shock absorption technology, which are widely used in energy dissipation and shock absorption building structures. However, most of the existing dampers are difficult to play a full role under the action of small earthquakes, and the energy dissipation capacity is poor; the displacement of the damper is prone to failure when the earthquake exceeds the expectation. If the damper with a larger stroke is used, the cost will be too high. Conducive to promotion and application. Contents of the invention [0003] Aiming a...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
Inventor 马玉宏赵桂峰王强何昊洪迪甫
Owner GUANGZHOU UNIVERSITY
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