The invention relates to the technical field of building equipment, and discloses a multistage-speed-limiting fall protection device of a construction hoist. The device comprises an outer shell, the interior of the outer shell is movably connected with a main shaft, the exterior of the main shaft is movably connected with a clamp braking device, the exterior of the main shaft is fixedly connectedwith a copper sheet ring, electromagnetic rings are movably connected to the exterior of the copper sheet ring, positioning sleeves are fixedly connected to the exteriors of the electromagnetic rings,an inductor is arranged in each positioning sleeve, and a speed-limiting electromagnet is fixedly connected to the interior of each positioning sleeve. Through cooperative use of the copper sheet ring, the electromagnetic rings, the positioning sleeves, the inductors, the speed-limiting electromagnets, speed-limiting magnets, speed-limiting lantern rings and push rods, the effect of automaticallylimiting the rotating speed of the main shaft is achieved, thus the too high rotating speed of the main shaft is effectively avoided, the stability of the rotating speed of the main shaft is guaranteed, further, the stability of the lifting process of the hoist is guaranteed, then the safety of workers and goods is guaranteed, and the use effect of the device is improved.
本发明涉及建筑设备技术领域,且公开了一种施工升降机多级限速防坠装置,包括外壳体,所述外壳体的内部活动连接主轴,所述主轴的外部活动连接有夹器制动装置,所述主轴的外部固定连接有铜片环,所述铜片环的外部活动连接有电磁环,所述电磁环的外部固定连接有定位套,所述定位套的内部设置有感应器,所述定位套的内部固定连接有限速电磁铁。通过铜片环、电磁环、定位套、感应器、限速电磁铁、限速磁铁、限速套环和推杆的配合使用,从而达到自动限制主轴转速的效果,有效避免主轴转速过快,保证主轴转动速度的稳定性,保证升降机升降过程的稳定,从而保证工人和货物的安全,提高该装置的使用效果。
Multistage-speed-limiting fall protection device of construction hoist
一种施工升降机多级限速防坠装置
2020-12-18
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |