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Cylindrical cam type damper response amplification device

A technology of cylindrical cam and amplifying device, which is applied in the direction of protective buildings/shelters, building types, buildings, etc., can solve the problems of damper performance failure, high cost, structural damage, etc., and achieves convenient construction and maintenance. The principle is simple and the effect of reducing the project cost

Inactive Publication Date: 2019-05-28
GUANGZHOU UNIVERSITY
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  • Description
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Problems solved by technology

However, when encountering an extremely rare earthquake, the amplified interstory displacement or velocity will cause the damper to reach the performance limit earlier and fail, and the structure will face the risk of damage or even collapse; The use of large-tonnage and large-stroke dampers leads to higher manufacturing costs, and the dampers also face the risk of performance failure
[0004] The patents with application numbers 201720876018.7, 201711291043.X, 201711291027.0, and 201711291109.5 respectively developed equal-width cam type, groove type, incomplete gear type, gear and crank-connecting rod combined damper response amplification device, but none of them reached the ideal Control effect

Method used

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  • Cylindrical cam type damper response amplification device
  • Cylindrical cam type damper response amplification device
  • Cylindrical cam type damper response amplification device

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Embodiment Construction

[0022] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

[0023] 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:

[0024] 1 is the bottom plate, 2 is the side baffle, 3 is the installation hole, 4 is the reinforcement plate, 5 is the cylindrical cam, 6 is the ball screw, 7 is the nut, 8 is the thrust bearing, 9 is the limit groove plate, 10 is the top plate , 11 is a driven rod, 12 is a damper, 13 is a connecting buckle, 14 is a curved groove, and 15 is a chute track.

[0025] For the convenience of description, the directions mentioned below are explained as follows: the directions of up, down, left, and right mentioned below are related to figure 2 The up, down, left, and right directions are the same.

[0026] combine figur...

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Abstract

The invention relates to a cylindrical cam type damper response amplification device which comprises a rack, a ball screw, a nut, a reciprocating cylindrical cam mechanism and a damper, wherein the ball screw is movably mounted; the nut is in threaded connection with the ball screw; the reciprocating cylindrical cam mechanism comprises a cylindrical cam fixed with the nut and a driven rod matchedwith the cylindrical cam; one end of the damper is connected to the rack, and the other end of the damper is connected to the driven rod; the ball screw penetrates through the cylindrical cam througha central hole of the cylindrical cam; the nut and the rack are relatively fixed in the axial direction of the ball screw. According to the response amplification device, layer displacement and speedresponses caused by a building structure are amplified, so that the damper can give full play to energy-dissipating capacity in a limited design stroke without failure of the displacement; and the response amplification device belongs to the technical field of earthquake engineering.

Description

technical field [0001] The invention relates to the technical field of earthquake engineering, in particular to a cylindrical cam damper response amplification device. Background technique [0002] Energy dissipation and shock absorption technology is an effective method for the application of modern structural vibration control theory in the anti-seismic fortification of structures. By adding dampers to certain parts of the structure, a certain amount of additional stiffness or additional damping is provided for the structure. The energy input to the structure is dissipated through the damper to reduce the dynamic response of the structure. [0003] The interstory displacement and velocity of the actual building structure under the action of external loads such as earthquakes and wind loads are small, and it is difficult for the damper to exert an effective energy dissipation capacity. For this reason, in recent years, a variety of damper damping devices with amplification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/02
Inventor 马玉宏赵桂峰张晶晶何昊刘杨
Owner GUANGZHOU UNIVERSITY
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