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A rotary viscous damper with adjustable damping force and its application

A viscous damper and damping force technology, applied in shock absorbers, shock absorbers, liquid shock absorbers, etc., can solve the problems of complex mechanical structure and inoperable dampers, and achieve the effect of structural simplification

Active Publication Date: 2018-12-04
山东维点技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanical structure of CN103335052B is too complicated
[0003] The previous application "201710608270.4" is a passive viscous damper, and a damper is also designed, which greatly simplifies the structure, although it can also achieve "no damping when returning to the equilibrium position" to a certain extent. damping force of the damper”, however, this scheme is limited by the “distance of the first rod freely sliding in the second rod” and “the distance of the third rod freely sliding in the fourth rod”. When the amplitude is too small, the damper Cannot work; when the amplitude is too large, the damping force when returning to the equilibrium position will still exist

Method used

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  • A rotary viscous damper with adjustable damping force and its application
  • A rotary viscous damper with adjustable damping force and its application
  • A rotary viscous damper with adjustable damping force and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: A rotary viscous damper with adjustable damping force, including: a first rotary viscous damper 1, a second rotary viscous damper 2, a first rack 1-1, and a second rack 2 -1;

[0036] The first rotary viscous damper 1 includes: a first outer wheel 1-2, a first inner wheel 1-3, a first connecting shaft, a first rotating blade 1-5, a first oil cylinder 1-4, a first The inner runner 1-3 and the first outer runner 1-2 transmit power through an internal meshing ratchet and pawl mechanism;

[0037] The surface of the first rack 1-1 is provided with tooth grooves, the outer surface of the first outer runner 1-2 is provided with tooth grooves, and the first rack 1-1 is meshed with the first outer runner 1-2;

[0038] The first outer runner 1-2 is a hollow runner, and the inner surface is provided with pawls, the first inner runner 1-3 is arranged in the first outer runner, and the outer surface of the first inner runner 1-3 is arranged There is a ratchet, and th...

Embodiment 2

[0060] Embodiment two: if Figure 7-8 As shown, the difference from Embodiment 1 is that the first rack and the second rack of Embodiment 1 are combined into one rack, and the structure of the rack is: no tooth slot + tooth slot + tooth slot The first outer runner is placed at the left end of the rack-tooth segment, and the second outer runner is placed on the right-hand end of the rack-tooth segment.

Embodiment 3

[0061] Embodiment three, such as Figure 9 As shown, an anti-seismic device of a frame structure applies the rotary viscous damper with adjustable damping force of the second embodiment of the present invention to the frame structure, the rack and the beam are in a parallel relationship, and the rack and the upper beam are connected by The component 4-1 is fixed, the lower beam is fixed with a support, and the first oil cylinder 1-4 and the second oil cylinder 2-4 are connected with the support ( Figure 9 not shown in ) fixed.

[0062] The installation method is as follows: first, install the connecting member 4-1 on the upper beam, and install the eight-shaped diagonal brace on the lower beam; second, fix the rack with the connecting member 4-1, and keep the rack and the Beam parallel relationship; third, install and fix the first oil cylinder and the second oil cylinder on the support; fourth, place the first outer runner on the left end of the tooth groove section of the ...

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PUM

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Abstract

The invention relates to a damping force adjustable rotating viscous damper and an application thereof. The damping force adjustable rotating viscous damper comprises a first rotating viscous damper body and a second rotating viscous damper body; a first inner wheel and a first outer wheel of the first rotating viscous damper body use an inner-meshing ratchet mechanism to transfer power, and the first inner wheel rotates in clockwise orientation; a second inner wheel and a second outer wheel of the second rotating viscous damper body use the inner-meshing ratchet mechanism to transfer power, and the second inner wheel rotates in counterclockwise orientation; the first outer wheel and the second outer wheel are arranged on a same rack; the rack is arranged in the manner of a tooth slot free section+ a tooth slot section+ a tooth slot free section, a tooth slot is arranged in the surface of each of the first outer wheel and the second outer wheel to be meshed with the rack, and the first outer wheel and the second outer wheel are respectively arranged in at the left end and the right end of the tooth slot section. By the arrangement, when a structural object returns to a balanced position, the damper does not producing damping force.

Description

technical field [0001] The patent of the present invention relates to the anti-seismic field of bridges, buildings, water conservancy and other structures, in particular to a rotary viscous damper with adjustable damping force and its application. Background technique [0002] CN103335052B discloses a passive viscous damper with adjustable damping force. Based on the principle of Bang-Bang active control algorithm, the directional gear that can rotate counterclockwise and the directional gear that can rotate clockwise can only rotate in one direction. A mechanism consisting of a directional gear, a free gear, a rack track, a baffle, and a viscous damper is presented. When the interstory displacement of the structure occurs, the process of returning to the equilibrium position is not hindered by the damping force of the viscous damper. This patent document proposes the design idea that "the damping force of the damper is an unfavorable factor for the structure when the struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/14F16F9/50E04B1/98
CPCE04B1/98F16F9/14F16F9/50
Inventor 刘华
Owner 山东维点技术有限公司