The mast vehicle hydraulic system comprises a platform control valve and an integrated power unit serving as an oil source and a control center, a working oil port A1 of the integrated power unit is connected with an oil inlet P of the platform control valve, and an oil return port T of the integrated power unit is connected with an oil return port T of the platform control valve; the platform control valve is connected with the crank arm variable-amplitude oil cylinder through the crank arm variable-amplitude gravity descending valve and controls the crank arm to rise and fall in a variable-amplitude mode through the crank arm variable-amplitude oil cylinder. The platform control valve is connected with the crank arm telescopic oil cylinder and controls the crank arm to stretch out and draw back through the crank arm telescopic oil cylinder. The integrated power unit is connected with the mast telescopic oil cylinder through the mast telescopic gravity descending valve and controls the mast to ascend and descend through the mast telescopic oil cylinder. According to the invention, the impact is reduced while the composite action is realized, and the operation experience of an operator is improved.
本发明公开了一种桅柱车液压系统及桅柱车,桅柱车液压系统包括:平台控制阀、作为油源和控制中心的集成动力单元,集成动力单元的工作油口A1与平台控制阀的进油口P连接,集成动力单元的回油口T与平台控制阀的回油口T连接;平台控制阀通过曲臂变幅重力下降阀连接曲臂变幅油缸,并通过曲臂变幅油缸控制曲臂变幅起落;平台控制阀连接曲臂伸缩油缸,并通过曲臂伸缩油缸控制曲臂伸缩;集成动力单元通过桅柱伸缩重力下降阀连接桅柱伸缩油缸,并通过桅柱伸缩油缸控制桅柱举升与下降。本发明在实现了复合动作的同时,减小了冲击,提高了操作者的操纵体验。
Mast vehicle hydraulic system and mast vehicle
一种桅柱车液压系统及桅柱车
2024-08-20
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 |