According to the crane for municipal building construction, by shifting a pulling plate, an anti-disengaging rod moves in the direction of a connecting column, a whole opening of a lifting hook is opened, at the moment, a spring I is stretched to store energy, then a steel wire rope is arranged in the lifting hook in a sleeving mode, the pulling plate is loosened, the spring I drives the anti-disengaging rod to conduct reset movement, and the anti-disengaging rod is loosened; and the end, away from the pulling plate, of the anti-disengaging rod is inserted into the adjusting groove again, the opening of the lifting hook is closed, the anti-disengaging rod cannot make contact with the steel wire rope in the moving process, and therefore the lifting hook can lift the large-size steel wire rope. When the steel wire rope slides to preliminarily contact with the anti-falling rod due to inclination of the lifting hook, the anti-falling rod is pushed to move in the stress direction, so that the end, inserted into the adjusting groove, of the anti-falling rod moves in the direction away from the bottom of the lifting hook, and the anti-falling rod moves in the direction of the top end of the connecting column by pulling a limiting barrel and a resistance block; and the position of the anti-falling rod can be automatically adjusted to a certain extent, so that the direct extrusion damage of the steel wire rope to the anti-falling rod is reduced.
本申请公开了一种市政建筑施工用起重机,通过拨动拉动板,使得防脱杆向连接柱的方向移动,打开吊钩的整个开口,此时弹簧Ⅰ拉伸蓄能,然后将钢丝绳套入吊钩内,松开拉动板,使得弹簧Ⅰ带动防脱杆进行复位移动,使得防脱杆远离拉动板的一端再次插入调节槽内,对吊钩的开口进行封闭,使得防脱杆在移动时不会与钢丝绳发生接触,从而使得吊钩可以吊装大体积的钢丝绳。因为吊钩的倾斜导致钢丝绳滑动初步接触防脱杆时,将推动防脱杆向受力方向移动,使得防脱杆插入调节槽的一端向远离吊钩底部的方向移动,而防脱杆将通过拉动限位筒和阻力块向连接柱顶端的方向移动,使得防脱杆能通过在一定程度上进行位置自调节,减小钢丝绳对防脱杆的直接挤压损坏。
Crane for municipal building construction
一种市政建筑施工用起重机
2024-11-22
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |