The invention discloses a hydraulic cylinder lifting system for an oil-gas drilling machine base, which is characterized in that a first reversing control valve is combined with a synchronous valve, a one-way throttle valve, a ninth balance valve, a tenth balance valve and the like to realize synchronous lifting and lowering of a first hydraulic cylinder and a second hydraulic cylinder of the drilling machine base; a second reversing control valve and a third reversing control valve are matched with a first balance valve, a second balance valve, a third balance valve, a fourth balance valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve and the like to achieve independent control of a base lifting cylinder. Meanwhile, a fifth balance valve, a sixth balance valve, a seventh balance valve, an eighth balance valve, a first throttling valve, a second throttling valve, a fourth one-way valve, a fifth one-way valve, a first pilot operated directional control valve, a second pilot operated directional control valve and the like are designed, so that the functions of dual safety guarantee of lifting of the drilling machine base, emergency lowering and the like are achieved; the problems of heavy-load hovering, downward sliding, pipeline explosion prevention, stall downward sliding and the like in the lifting/lowering process of the drilling machine base are solved.
本发明公开了油气钻机底座用液压缸起升系统,通过第一换向控制阀结合同步阀、单向节流阀、第九平衡阀、第十平衡阀等实现钻机底座起升第一液压缸、第二液压缸的同步起升和下放,通过第二换向控制阀、第三换向控制阀配合第一平衡阀、第二平衡阀、第三平衡阀、第四平衡阀、第一液控单向阀、第二液控单向阀等实现了底座起升缸的独立控制,同时设计了第五平衡阀、第六平衡阀、第七平衡阀、第八平衡阀、第一节流阀、第二节流阀、第四单向阀、第五单向阀、第一液控换向阀、第二液控换向阀等实现了钻机底座起升的双重安全保障及应急下放等功能,解决了钻机底座起升/下放中的重载悬停、下溜及管路防爆、失速下滑等难题。
Hydraulic cylinder lifting system for oil-gas drilling machine base
油气钻机底座用液压缸起升系统
2024-03-08
Patent
Electronic Resource
Chinese
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |
Hydraulic oil cylinder for lifting machine and shear type lifting machine
European Patent Office | 2024
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