The invention discloses a movable hanging bracket for hoisting a bridge wet joint bottom template, which has the advantages that a vertical guide rod, a sliding sleeve, a correction guide sleeve, a brake and an in-place sensor are additionally arranged, and a rotation limiting matching structure is arranged between a hanger and the correction guide sleeve; when the bottom formwork is lifted to the upper portion of the lifting appliance and inserted into the correcting guide sleeve, the brake limits sliding of the sliding sleeve, the correcting guide sleeve is fixed, the lifting appliance rotates to drive the bottom formwork to rotate under the rotation effect of the rotation limiting matching structure, and the bottom formwork is fixed under the limiting effect of the rotation limiting matching structure. Before the bottom formwork enters the longitudinal gap between the adjacent box girders, the length direction of the bottom formwork is consistent with the extending direction of the wet joint, and the situation that the bottom formwork collides with the side walls of the box girders or is clamped is avoided; the winch pulls the lifting appliance to drive the correcting guide sleeve, the connecting rod and the sliding sleeve to synchronously and vertically move upwards till the two sides of the bottom formwork are attached to the edges of the box girders on the same side respectively, the length direction of the bottom formwork is kept consistent with the extending direction of the wet joint in the process, and manual stirring is not needed.
本发明公开了一种用于吊装桥梁湿接缝底模板的移动吊架,其优点在于增设了竖向导杆、滑套、矫正导套、制动器和到位传感器,吊具与矫正导套之间设转动限位配合结构;在底模板起吊到吊具上部插到矫正导套内时,制动器限制滑套滑动,矫正导套固定不动,在转动限位配合结构的转动作用下,吊具转动带动底模板旋转,在转动限位配合结构的限位作用下,底模板在进入相邻箱梁之间的纵向间隙前其长度方向与湿接缝的延伸方向一致,避免与箱梁侧壁发生碰撞或卡住等情况,而解除滑套滑动限制后,卷扬机牵引吊具带动矫正导套、连接杆和滑套同步竖直上移直至底模板两侧分别与同侧箱梁边沿相贴,过程中保持底模板的长度方向与湿接缝的延伸方向一致,无需人工拨动。
Movable hanging bracket for hoisting bridge wet joint bottom formwork
用于吊装桥梁湿接缝底模板的移动吊架
2023-05-16
Patent
Electronic Resource
Chinese
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