自平衡式四吊点液压自动抓梁研发

Development of self-balancing automatic hydraulic grabbing beam with four lifting points

液压自动抓梁是水运工程多节深孔闸门启闭的关键设备。常规液压自动抓梁为双吊点,吊点连线与闸门重心线须重合,无自平衡功能,不适用于重心线不同的闸门启闭。针对双吊点液压自动抓梁通用性较差的问题,进行自平衡式四吊点液压自动抓梁的研发。自平衡式四吊点液压自动抓梁采用框架式结构,布置4个吊点,梁体通过联系杆和液压油缸与启闭机相连。当启闭重心线不同的闸门时,通过液压油缸的伸缩动作,使倾斜的闸门调整为水平。结果表明,自平衡四吊点液压自动抓梁可以很好地解决常规抓梁的通用性问题,并使闸门设计简化,减小闸门工程量,降低工程投资。

Automatic hydraulic grabbing beams are the key equipment for the opening and closing of multi-section deep-hole gates in port and waterway engineering.The conventional automatic hydraulic grabbing beams with two lifting points have no self-balancing function and require that the connection line between the two lifting points coincide with the center of gravity line of the gate.Therefore,they are not readily applicable to the opening and closing of gates with different center of gravity lines.Given the poor universality of automatic hydraulic grabbing beams with two lifting points,this paper focuses on the development of a self-balancing automatic hydraulic grabbing beam with four lifting points.The proposed automatic hydraulic grabbing beam adopts a frame structure,where four lifting points are arranged,and connects its beam body with the hoist by a connecting rod and a hydraulic cylinder.When opening and closing gates with different center of gravity lines,the grabbing beam levels incline gates through the extension and retraction of the hydraulic cylinder.The results show the proposed self-balancing automatic hydraulic grabbling beam with four lifting points can well solve the universality problem of the conventional grabbing beams,simplify the gate design and reduce the project amount and investment of the gate.