The invention discloses a single-cylinder balancing weight jacking mechanism and a crane in the technical field of cranes, and aims to solve the problems that a balancing weight lifting mechanism in the prior art is generally a double-oil-cylinder hooking system, so that the cost is relatively high, the hooking system is complicated, the number of fault points is large, the synchronism is poor, and the reliability is slightly poor. The device comprises a driving mechanism arranged on a frame, the driving mechanism comprises a jacking oil cylinder, the jacking oil cylinder is fixedly connected with the frame through a fixing mechanism, and a positioning device is arranged at the output end of the jacking oil cylinder; the positioning device comprises a top support, a plurality of positioning blocks are arranged at the top of the top support, and a positioning hole is formed in the bottom of the counterweight; the top support and the counterweight are matched in a convex-concave mode, the counterweight is driven to ascend and descend through the single jacking oil cylinder, the arrangement space of a counterweight hooking device on the rear section of the rotary table can be effectively reduced, the arrangement space of a hydraulic-electric system is increased, assembling and maintaining convenience is improved, and meanwhile the telescopic synchronism problem of a double-oil-cylinder hooking system can be avoided.
本发明公开了一种起重机技术领域的单缸平衡重顶升机构及起重机,旨在解决现有技术中平衡重提升机构通常为双油缸挂接系统,成本相对较高,挂接系统较复杂,故障点较多,存在同步性差、可靠性稍差的问题。其包括设置于车架上的驱动机构,驱动机构包括顶升油缸,顶升油缸通过固定机构与车架固定连接,顶升油缸的输出端设有定位装置;定位装置包括顶支撑,顶支撑顶部设有多个定位块,平衡重底部开设有定位孔;本发明的顶支撑与平衡重实现凸凹配合,并通过单个顶升油缸带动平衡重进行升降,可以有效减少转台后段平衡重挂接装置布置空间,增加液电系统布置空间,提升装配、维修方便性,同时可避免双油缸挂接系统伸缩同步性问题。
Single-cylinder counterweight jacking mechanism and crane
一种单缸平衡重顶升机构及起重机
2024-04-05
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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