The invention relates to the field of hoisting machinery, and discloses a tower crane and an anti-overturning control method thereof.The tower crane comprises a self-discharging balance weight (31) installed on a balance arm (22), and the self-discharging balance weight forms a first cavity used for containing solid particles or liquid fluid (31a); the self-discharging balancing weight is arranged in the first cavity and connected with a conveying mechanism for inputting or discharging the solid particles or the liquid fluid, and under the condition that the hanging assembly (4) is unloaded suddenly, the self-discharging balancing weight is at least controlled to release the solid particles or the liquid fluid contained in the first cavity. According to the tower crane, under the condition of sudden unloading such as rope breakage, the self-unloading balance weight can release the weight matched with the load moment so as to restrain the lifting motion of the suspension arm caused by the violent change of the instantaneous load borne by the suspension arm, so that the bending moment impact on the tower body is reduced or avoided, and the risk of overturning accidents is effectively reduced; and the optimal anti-overturning state is always kept by adjusting the weight of the self-discharging balancing weight in the hoisting process.
本发明涉及起重机械领域,公开了一种塔式起重机及其防倾覆控制方法,所述塔式起重机包括安装于平衡臂(22)的自卸平衡重(31),该自卸平衡重形成有用于容纳固体颗粒或液态流体(31a)的第一腔体,并连接有输入或排出所述固体颗粒或液态流体的输送机构,在吊挂组件(4)突发卸载的情况下,所述自卸平衡重至少被控制为释放容纳于第一腔体内的固体颗粒或液态流体。该塔式起重机可以在发生断绳等突发卸载的情况下通过使得自卸平衡重释放匹配于负载力矩的重量而抑制吊臂因承受的瞬时载荷剧烈变化导致的上扬运动,从而减小或避免对塔身的弯矩冲击,有效降低了发生倾覆事故的风险;通过在吊运过程中调整自卸平衡重的重量而始终保持最佳的抗倾覆状态。
Tower crane and anti-overturning control method thereof
塔式起重机及其防倾覆控制方法
2022-12-30
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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