The invention relates to the related technical field of bridge cranes, in particular to an automatic speed reduction device of a bridge crane, which comprises a bridge crane rack and a sliding seat horizontally arranged in the bridge crane rack in a sliding manner, a first rotating shaft is rotatably arranged in the sliding seat, a lifting rope is wound on the first rotating shaft, and one end of the lifting rope extends downwards to penetrate through the sliding seat and is used for being connected to a lifting appliance. A container can be lifted and transferred through cooperation of the power set and the lifting appliance, the downward sliding speed of the lifting rope can be monitored through the arrangement of the speed sensor, when the downward sliding speed exceeds a normal value, the locking mechanism is started to make the second stop block slide out to stop the first stop block, then the first rotating shaft is limited, and the safety of the container is improved. The purpose of preventing the lifting rope from continuously and rapidly sliding down is achieved, the purpose of carrying out integral emergency protection on the lifting structure after the motor fails can be achieved, and the purpose of protecting personnel and goods within the range of the bridge crane can also be achieved.
本发明涉及桥吊相关技术领域,特别地,一种桥吊自动减速装置,包括桥吊机架和水平滑动设于所述桥吊机架内的滑座,所述滑座内转动设有第一转轴,所述第一转轴上绕设有吊绳,所述吊绳的一端向下延伸穿过滑座用于连接在吊具上。本发明通过了动力组和吊具的配合能够将集装箱起吊进行转移,并且通过速度传感器的设置能够对吊绳的下滑速度进行监测,在下滑速度超过正常值时,启动锁止机构使第二挡块滑出阻挡第一挡块,进而达到了对第一转轴的限位,达到了防止吊绳继续快速下滑的目的,能够达到在电机失效之后对起吊结构进行一个整体的应急防护的目的,也能够达到对桥吊范围内进行人员和货物保护的目的。
Automatic speed reducer for bridge crane
一种桥吊自动减速装置
2023-05-09
Patent
Electronic Resource
Chinese