The invention discloses a tower crane with a double-loop jacking system, and particularly relates to the technical field of tower cranes, the tower crane comprises a tower body, the tower body is composed of a plurality of vertically stacked standard knots, a jacking sleeve frame is erected on the outer side of the tower body, a jacking assembly is arranged on the jacking sleeve frame, a rotating device is arranged above the jacking sleeve frame, and the rotating device is connected with the jacking assembly. And a hoisting device is arranged on the rotating device. Through the arrangement of the protection assembly, when a hydraulic system breaks down in the lifting working process of the hydraulic cylinder, on one hand, hydraulic oil in a piston barrel can prevent the piston rods from retracting, and the two piston rods can continue to support the jacking cross beam, so that the stability of the tower crane structure is ensured, and serious safety accidents caused by faults of the hydraulic cylinder are avoided; on the other hand, the two piston rods can stretch out or retract by injecting hydraulic oil into the two piston cylinders or extracting the hydraulic oil from the two piston cylinders, the temporary jacking effect can be achieved, long-time shutdown during maintenance is avoided, and the operation efficiency is improved.
本发明公开了一种具有双回路顶升系统的塔式起重机,具体涉及塔式起重机技术领域,包括塔身,塔身由多个竖直叠加的标准节组成,塔身的外侧架设有顶升套架,顶升套架上设置有顶升组件,顶升套架的上方设置有回转装置,回转装置上设置有起吊装置。本发明通过保护组件的设置,当液压缸进行升节工作过程中液压系统出现故障时,一方面活塞筒内的液压油能够防止活塞杆缩回,两个活塞杆能够继续支撑顶升横梁,从而确保塔吊结构的稳定性,避免因液压缸故障导致的严重安全事故,另一方面可通过向两个活塞筒内注入液压油或抽取液压油,能使两个活塞杆伸出或缩回,能起到临时顶升的作用,避免维修长时间停机,提高作业效率。
Tower crane with double-loop jacking system
具有双回路顶升系统的塔式起重机
2025-03-04
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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