The invention relates to the related technical field of hoisting machinery, in particular to an oil cylinder system, a cargo boom and a crane. The oil cylinder system comprises a first oil cylinder, a second oil cylinder and an oil supply pipeline, the oil supply pipeline is respectively connected with the first oil cylinder and the second oil cylinder; when the oil supply pipeline is in the first state, the oil supply pipeline guides hydraulic oil to drive the first oil cylinder to move; when the oil supply pipeline is in the second state, the oil supply pipeline guides the hydraulic oil to drive the second oil cylinder to move; when the oil supply pipeline is in the third state, the oil supply pipeline guides the hydraulic oil to drive the first oil cylinder and the second oil cylinder to move synchronously. Thus, when the two oil cylinders need to act synchronously, the oil supply pipeline is controlled to be in the third state, the oil supply pipeline guides oil to drive the first oil cylinder and the second oil cylinder to move synchronously, if synchronization errors of the first oil cylinder and the second oil cylinder occur, the oil supply pipeline is switched to be in the first state or the second state, and the first oil cylinder or the second oil cylinder is controlled to move independently. Errors in the synchronization process are eliminated, and synchronism is improved.
本申请涉及起吊机械相关技术领域,具体涉及油缸系统、起重臂及起重机。其中,油缸系统包括:第一油缸、第二油缸和供油管道;供油管道分别与第一油缸和第二油缸相连;当供油管道处于第一状态时,供油管道引导液压油驱动第一油缸运动;当供油管道处于第二状态时,供油管道引导液压油驱动第二油缸运动;当供油管道处于第三状态时,供油管道引导液压油驱动第一油缸和第二油缸同步运动。如此,需要两个油缸同步动作时,控制供油管道处于第三状态,供油管道引导油驱动第一油缸和第二油缸同步运动,若第一油缸和第二油缸的同步出现误差,将供油管道切换至第一状态或第二状态,控制第一油缸或第二油缸单独运动,以消除同步过程中的误差,提高同步性。
Oil cylinder system, cargo boom and crane
油缸系统、起重臂及起重机
2022-11-29
Patent
Elektronische Ressource
Chinesisch
Single-cylinder bolt control system, cargo boom and crane
Europäisches Patentamt | 2024
|Single-cylinder bolt telescopic control system, cargo boom and crane
Europäisches Patentamt | 2024
|