Vortex-induced vibration preventing device for fan tower drum

The invention discloses a fan tower anti-vortex-induced vibration device in the field of tower anti-excitation devices, which comprises a tower body, a damping block, a rigging, a pulley block, a winding body and a bidirectional motor are arranged in the tower body, one end of the rigging is downwards connected with the damping block, and the other end of the rigging upwards bypasses the pulley block and then is wound on the winding body; a working shaft of the bidirectional motor is connected with the winding body; the pulley block is arranged on the top of the tower body. According to the scheme, when the tower drum is shut down, the damping block is in a lifted state, damping of the tower drum body is increased, the resonance phenomenon is effectively prevented, and therefore the dangers such as fatigue failure and toppling of the tower drum are avoided, and the damping block does not swing to impact the tower drum. 本申请公开了塔筒防激振装置领域的一种风机塔筒防涡激振动装置，包括塔筒本体，塔筒本体内设有阻尼块、索具、滑轮组、卷绕体、双向电机，索具一端向下与阻尼块连接，另一端向上绕过滑轮组后绕于卷