门座起重机吊具防脱保护装置的改进

Improvement on the Sling Anti-off Protection Device of Portal Slewing Crane

针对门座起重机在装卸作业中吊具脱钩,引发吊具和集装箱坠落事故的问题,对门座起重机吊具进行了防脱限位保护装置改进,使检修人员能够更及时、准确地发现锁销脱落引起的销轴松脱现象,及时排除安全隐患,提高门座起重机的可靠性和整机作业效率。

In view of the problem of sling and containers falling accident caused by sling unhooking during the por-tal crane handing, the anti-off and limit protective device is improved which can make it efficient and accurate for maintain- ers to find axis pins slip caused by lock pins dropping out. Security risks are ruled out and the craned reliability and ma-chined work efficiency are increased.