The invention relates to the technical field of electric hoists, in particular to an electric hoist limiting mechanism. The steel wire rope is wound on the roller; the lifting hook is connected with the steel wire rope; the proximity switch is arranged on the roller and used for preventing the steel wire rope from rising; the proximity switch collision iron is arranged at the end, close to the roller, of the lifting hook, and the end, close to the roller, of the proximity switch collision iron is matched with the proximity switch; and when the lifting hook ascends to the proximity switch collision iron along with the steel wire rope to trigger the proximity switch, the proximity switch prevents the steel wire rope from continuing to ascend so as to limit the lifting hook. According to the scheme, the proximity switch is large in sensing area, long in sensing distance, sensitive in sensing, low in failure rate, not prone to limiting failure and high in safety and reliability.
本发明涉及电动葫芦技术领域,特别是涉及一种电动葫芦限位机构,包括:滚筒;钢丝绳,卷绕于所述滚筒上;吊钩,与所述钢丝绳连接;接近开关,设置于所述滚筒上,用于阻止所述钢丝绳上升;接近开关撞铁,设置于所述吊钩靠近所述滚筒的一端上,并且所述接近开关撞铁靠近所述滚筒的一端与所述接近开关相配合;当所述吊钩随所述钢丝绳上升至所述接近开关撞铁触发所述接近开关时,所述接近开关阻止所述钢丝绳继续上升以对所述吊钩进行限位。本方案中接近开关的感应面积大,并且感应距离较远,感应灵敏,故障率低,不易发生限位失效,安全可靠性高。
Limiting mechanism of electric hoist
电动葫芦限位机构
2023-04-07
Patent
Electronic Resource
Chinese
IPC: | B66D Haspeln , CAPSTANS |
Electric hoist mounting mechanism and electric hoist with same
European Patent Office | 2022
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