The invention relates to the technical field of hoisting safety chains of railway vehicles, and discloses a steel rail grinding wagon locking and unlocking stretchable hoisting safety chain which comprises a sleeve, a hanging chain and a hoisting ring, the upper end of the sleeve is used for being connected with a grinding wagon body, a connecting shaft is arranged in the sleeve, the sleeve and the connecting shaft are in clearance fit, and the connecting shaft and the sleeve are elastically connected; an upper limiting structure and a lower limiting structure are respectively arranged between the connecting shaft and the sleeve, the upper limiting structure limits the retraction limit of the connecting shaft relative to the sleeve, and the lower limiting structure limits the extension limit of the connecting shaft relative to the sleeve; according to the stretchable hoisting safety chain for locking and unlocking the steel rail grinding wagon, the problems that locking and unlocking operation of an existing design wastes time and labor and is low in efficiency are solved.
本发明涉及铁路车辆的吊装安全链技术领域,公开了一种钢轨打磨车锁定与解锁可拉伸吊装安全链,包括套筒、挂链和吊环,所述套筒的上端用于与打磨车车体连接,所述套筒内设有连接轴且二者间隙配合,所述连接轴与套筒之间弹性连接;所述连接轴与套筒之间分别设有上限位结构和下限位结构,所述上限位结构限制连接轴相对于套筒的回缩极限,所述下限位结构限制连接轴相对于套筒的伸出极限;本发明提供的一种钢轨打磨车锁定与解锁可拉伸吊装安全链,解决了现有设计锁定与解锁操作费时费力、效率低的问题。
Stretchable hoisting safety chain for locking and unlocking steel rail grinding wagon
一种钢轨打磨车锁定与解锁可拉伸吊装安全链
2023-06-02
Patent
Electronic Resource
Chinese
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