Stepless length regulating method in mounting course of viscous damping device

Abstract

The invention relates to a method for stepless control of length of a viscous damper when the damper is mounted. In the method, eccentric sleeves are arranged between a double ear ring base of the damper and a pin shaft of the damper, and fixed on the double ear ring base by a positioning bolt; when the damper is mounted, firstly a spherical hinge base of the damper is inserted in the double ear ring base, one eccentric sleeve is sleeved in a hole on one side of the double ear ring base; the pin shaft is inserted in the damper from the side on which the eccentric sleeve is sleeved; the other eccentric sleeve is sleeved on the other side of the double ear ring base; the eccentric sleeves are turned, so that the eccentric sleeves are sleeved between the double ear ring base and the pin shaft, and the double ear ring base closely contacts the mounting surface; the eccentric sleeves are tightly locked by positioning bolts; and finally the double ear ring base is fixed, the whole process of mounting the damper is completed. Compared with the prior art, the method of the invention has the advantages of low cost, simple and convenient operation, high precision and great improvement of the mounting efficiency.

Description

technical field [0001] The invention relates to the field of bridge vibration reduction and anti-seismic, in particular to a method for steplessly adjusting the length of a viscous damper during installation. Background technique [0002] A viscous damper is generally composed of two pairs of clevis seats, a damper and its connectors. Its installation form is mainly reflected in the different orientations of the bottom surface of the clevis seats, such as Figure 1~2 As shown, the left double clevis seat 1 is fixed on the bridge 7, and the right ear bridge seat 2 is fixed on the support pad 8. After the two double clevis seats are fixed, since the installation accuracy of the damper 5 is very high, The gap between the pin 9 and the 1st hole of the left clevis seat and the 2nd hole of the right clevis seat is only a dozen wires. After the pin 9 at one end of the damper 5 is inserted, the pin at the other end only needs a little distance error. It cannot be inserted, so the di...

AI Technical Summary

Problems solved by technology

[0002] A viscous damper is generally composed of two pairs of clevis seats, a damper and its connectors. Its installation form is mainly reflected in the different orientations of the bottom surface of the clevis seats, such as Figure 1~2 As shown, the left double clevis seat 1 is fixed on the bridge 7, and the right ear bridge seat 2 is fixed on the support pad 8. After the two double clevis seats are fixed, since the installation accuracy of the damper 5 is very high, The gap between the pin 9 and the 1st hole of the left clevis seat and the 2nd hole of the right clevis seat is only a dozen wires. After the pin 9 at one end of the damper 5 is inserted, the pin at the other end only needs a little distance error It cannot be inserted, so the distance adjustment becomes very important. At present, there are two widely used adjustment methods when installing the damper. The first one: through the left spherical hinge seat 3 or the right spherical hinge seat 4 at one end of the damper 5 The thread screwed in and screwed out to adjust, the disadvantage of this technology is 1. The adjustment is cumbersome, the lock nut 6 at one end of the damper 5 must be loosened, and then adjusted, adjusted to the position and finally locked

2. Stepless adjustment cannot be performed when adjusting the distance. Each time the distance is adjusted, the jumps are discontinuous, and when this adjustment is generally used for large dampers, it is adjusted before the installation is started, because under field conditions, This adjustment is not possible at all during installation

The second method: after installing the damper at one end, measure the length error in real time, then process a steel plate that meets the required thickness, and place the steel plate on the bottom of the double clevis seat to achieve the purpose of adjusting the distance. The bearing 10 fixes the damper, this method is more cumbersome and difficult to implement

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