Self-balancing inertial damper adopting right-hand and left-hand thread lead screw

Abstract

The invention belongs to the technical field of energy dissipation and shock absorption of engineering structures, and provides a self-balancing inertial damper adopting a right-hand and left-hand thread lead screw. The self-balancing inertial damper comprises the right-hand and left-hand thread lead screw, a magnet disc, a conductor disc, permanent magnets, double-headed flange cylinders, feed screw nuts and the like; a right-hand threaded section and a left-hand threaded section are arranged on the left side and the right side of the right-hand and left-hand thread lead screw correspondingly, provided with the feed screw nuts in a sleeved mode correspondingly and connected with bearings of a fixed support; the magnet disc and the conductor disc are arranged in pairs, the magnet disc is provided with the permanent magnets, and the magnet disc and the permanent magnets are fixedly connected with the feed screw nuts through the double-headed flange cylinders and do not make contact withthe right-hand and left-hand thread lead screw; and through reciprocating of the right-hand and left-hand thread lead screw on the axis, the magnet disc and the conductor disc always relatively rotate to generate an electric vortex effect, and shock absorption control of the structure can be achieved. By adopting right-hand and left-hand thread lead screw transmission, the purposes of inertial synergy and damping synergy can be achieved, meanwhile, the self-balancing performance of the lead screw is achieved, the mounting requirements for the two both ends of the damper can be relaxed, and the self-balancing inertial damper can also be applied to a pure tension system, and has good engineering value.

Description

technical field

[0001] The technical field of energy dissipation and shock absorption of engineering structures of the present invention relates to a self-balancing inertial damper using positive and negative screw rods. Background technique

[0002] The energy-dissipating and shock-absorbing technology of engineering structures is to add energy-dissipating and shock-absorbing devices to the structure, and reduce the dynamic response of the structure itself through the energy-dissipating effect of the additional shock-absorbing devices, ensuring the safety, comfort and normal usability of the structure and other functional requirements.

[0003] At present, the damper using the eddy current effect is gradually applied in the field of passive vibration control of civil engineering structures. The generation of eddy current damping must have a conductor plate for cutting the magnetic induction line movement, that is, there is relative motion between the magnetic field source ...

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