Viscoelastic rotary damping support and working method thereof

Abstract

Disclosed are a viscoelastic rotary damping support and a working method thereof. The damping support comprises a double-sided toothed rack, and two toothed surfaces of the rack are symmetrically provided with at least two rotary damping units in meshed transmission with the toothed surfaces of the rack; each rotary damping unit comprises an outer gear, a shaft sleeve and a fixing shaft rod whichare axially sleeved, and each outer gear is used for being meshed with the rack; an outer ring of each shaft sleeve is in key connection with an inner ring of the corresponding outer gear, the inner annular surface of each shaft sleeve and the outer annular surface of the corresponding fixing shaft rod have the same circle center, an annular cavity for placing a viscoelastic damping material is formed between the inner annular surface of each shaft sleeve and the outer annular surface of the corresponding fixing shaft rod, and the two ends of each fixing shaft rod are fixedly connected with arigid bracket. The damping support can change horizontal relative motion into shearing motion of the viscoelastic damping material in the rotational direction, the weak boundary of bonding of a viscoelastic damping material and other components of a traditional plate-type damping device is eliminated, and therefore the damping support has larger working stroke and larger damping force.

Description

technical field [0001] The invention mainly relates to the field of dampers, in particular to a viscoelastic rotary damping support, which has a good energy consumption and vibration reduction effect on harmful vibration energy. Background technique [0002] Viscoelastic damping material belongs to high molecular polymer and is a kind of energy-dissipating material with excellent performance. This material has both viscosity and elasticity. When deformed by alternating stress, the interior of the viscoelastic damping material will undergo movement such as breaking and recombining of matrix molecular chains, friction between fillers or between fillers and the matrix, and these physical motion processes will convert part of the energy into potential energy. The form is stored, and another part of the energy is converted into heat energy and dissipated. The viscoelastic damper made of viscoelastic damping material is a new type of energy dissipation shock absorber used in stru...

AI Technical Summary

Problems solved by technology

[0004] Technical problem: For the problems existing in the prior art, the present invention provides a viscoelastic rotary damping support, which contains a plurality of gear-shaped damping units. Due to the rotation of the damping units, the viscoelastic damping material has a horizontal shear in the past. The shear deformation becomes the deformation in the tangential direction of the rotation, which greatly improves the bonding performance between the viscoelastic damping material and the steel plate, makes the damper have a larger working stroke, and can adjust the stroke of the damper and the damping force. size

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