The invention provides an ultra-large tower crane based on an automatic control mobile counterweight and a control method of the ultra-large tower crane. A mobile counterweight mechanism capable of doing reciprocating motion is hung on a balance arm, and a counterweight traction winch is further installed on the lower portion of the balance arm; a position correction sensing assembly used for monitoring the position of the movable balance weight mechanism is arranged on the balance weight traction winch, a monitoring sensor assembly is arranged in the winch driving assembly and used for monitoring the lifting weight, the variable-amplitude stroke and deformation of the lifting arm and the balance arm, and a control unit is arranged in a control cabinet of the cab. By arranging the movable balance weight mechanism, the movable balance weight mechanism can be conveniently moved to different points on the balance arm so as to balance the moment borne by the tower body, improve the alternating stress state borne by the fixed balance weight tower body, reduce the structural fatigue of the tower body and prolong the service life of the metal structure of the tower body, and for tower cranes of the same level, the size of the balance arm can be reduced; the required operation space is small, and the on-site arrangement of the tower crane is facilitated.
本发明提供一种基于自动控制移动平衡重的超大型塔机及其控制方法,所述平衡臂上挂载有可往复运动的移动配重机构,平衡臂的下部还安装有平衡重牵引卷扬机,平衡重牵引卷扬机上设置有用于监测移动配重机构位置的位置校正传感组件,所述卷扬机驱动组件中设置有监测传感器组件,用于监测起重重量、变幅行程,以及起重臂和平衡臂的形变,司机室的控制柜中设置有控制单元。通过设置移动配重机构,便于通过移动配重机构移动到平衡臂上不同的点,来平衡塔身受到的力矩,改善固定平衡重塔身承受的交变应力状态,减小塔身结构疲劳提高塔身金属结构的使用寿命,对于同级别塔吊,可减小平衡臂尺寸,所需作业空间小,有利于塔吊现场布置。
Ultra-large type tower crane based on automatic control mobile balancing weight and control method of ultra-large type tower crane
基于自动控制移动平衡重的超大型塔机及其控制方法
2023-07-28
Patent
Elektronische Ressource
Chinesisch
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