The invention relates to the field of hoisting, in particular to a crane clamp with a safety device. Comprising an internal expansion type clamp connected with a hoisting steel wire rope, the internal expansion type clamp is provided with a clamping rod used for being tightly attached to the inner side of a vertical steel coil, and a slow descending mechanism is arranged on the hoisting steel wire rope at the top of the internal expansion type clamp. The device has the beneficial effects that during hoisting operation, if slipping occurs, a crane starts to drive a vertical steel coil to fall, meanwhile, a motor is started to drive a driving gear to rotate, so that a first driven gear is driven to rotate, a second driven gear is also driven to rotate, and a first threaded rod and a second threaded rod can rotate; and even if the threaded rod I and the threaded rod II extend out of the connecting block, the overall length of the slow descending mechanism is increased, so that the response speed of the vertical steel coil when the vertical steel coil needs to quickly fall is increased, and the risk that the steel coil falls from the air is reduced.
本发明涉及吊装起重领域,具体涉及一种具有安全装置的起重机夹具;包括与吊装钢丝绳相连的内胀式夹具,所述内胀式夹具上设置有用于贴紧立式钢卷内侧的夹杆,所述内胀式夹具顶部的吊装钢丝绳上设置有缓降机构。本发明的有益效果为:在吊装作业时,若发生滑脱,起重机开始带动立式钢卷下落,同时电机启动带动主动齿轮进行转动,从而带动从动齿轮一进行转动,同时也带动从动齿轮二进行转动,即可使得螺纹杆一和螺纹杆二进行转动,即使得螺纹杆一和螺纹杆二从连接块中伸出,即增长缓降机构的整体长度,从而加快立式钢卷在需要快速下落时的响应速度,降低钢卷从空中坠落的风险。
Crane clamp with safety device
一种具有安全装置的起重机夹具
2024-07-30
Patent
Electronic Resource
Chinese
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