The invention belongs to the technical field of lifting hooks, and particularly relates to a safety lifting hook. The safety lifting hook comprises a steel wire rope, a drive motor, a fixed winding wheel, a winding drive wheel, a fixed pulley mechanism and a lifting hook mechanism. By means of the lifting hook, in the use process, after the steel wire rope at a certain position is broken, under the gravity action of the lifting hook mechanism and a lifting object, the broken steel wire rope can slide, the steel wire rope wound on a pulley in a pulley unit is limited by triggering a limiting press strip in the corresponding pulley unit in a sliding manner, the lifting hook mechanism is prevented from continuing to descend to a certain degree, and persons and properties below are protected.According to the designed lifting hook, after the steel wire rope between a third pulley unit and the winding drive wheel is broken and limited, when a user wants to take down the lifting hook mechanism, a standby motor is firstly mounted on a cross beam, a first rotating shaft is connected with an output shaft of the standby motor, a limiting plug is taken down from a limiting pin hole and a limiting round hole, the fixed winding wheel is driven by the standby motor to rotate, and the lifting hook mechanism is pulled up.
本发明属吊钩技术领域,尤其涉及一种安全吊钩,它包括钢丝绳、驱动电机、固定缠绕轮、缠绕驱动轮、定滑轮机构、吊钩机构,该吊钩,在使用过程中如果某处钢丝绳断裂后,在吊钩机构和起吊物的重力作用下,断裂的钢丝绳就会滑动,通过滑动触发对应滑轮单元中的限位压条,使缠绕在滑轮单元中滑轮上的钢丝绳被限位,一定程度上防止了吊钩机构的继续下落,保护了下面的人和财产。本发明中设计的吊钩,如果第三滑轮单元和缠绕驱动轮之间的钢丝绳断裂且被限位后,想将吊钩机构取下时,首先将备用电机装于横梁上,使得第一转轴与备用电机的输出轴连接,将限位插销从限位销孔和限位圆孔内取下,然后,通过备用电机驱动固定缠绕轮旋转,将吊钩机构拉起。
Safety lifting hook
一种安全吊钩
2020-09-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |