一、在卸材点的承载索上装一碰杆,在吊钩的圆盘上等距离焊六根铁棒,把吊钩锁环的安全销取掉,在圆盘底部焊一个起凸轮作用的曲线钩(如图1)。当木材吊运至卸材点时,在惯性作用下,使吊钩圆盘上的铁棒与碰杆相撞,吊钩圆盘旋转,圆盘上的曲线钩顶开锁环,吊钩落下,实现脱钩。二、在上种基础上改进。去掉曲线钩和锁环,在圆盘下焊一个开有三个直通槽的圆盘(如图2),当铁棒和碰杆相撞时,使吊钩盘转过一定角度,当圆盘开口和吊钩相遇时,吊 First, at the unloading point of the loading cable installed a touch of the bar, the hook plate equidistant welding six iron rods, the hook lock ring safety pin removed at the bottom of the disc welding a curve of the role of the cam Hook (Figure 1). When the wood is hoisted to the unloading point, under inertial action, the iron rod on the hook disc collides with the hitting rod, the hook disc rotates, the curved hook on the disc opens the lock ring, the hook falls, To achieve decoupling. Second, based on the kind of improvement. Remove the curve hook and the lock ring and weld a disc with three straight through slots under the disc (Figure 2). When the bar collides with the tap bar, turn the hook plate to a certain angle. When the disc opening Meet with the hook, hanging