The invention discloses an aerial work platform and a hydraulic system thereof, and the hydraulic system comprises a steering oil cylinder loop which comprises a steering reversing valve used for controlling a steering oil cylinder; oil is taken from the middle position of the steering reversing valve and comprises a first motor oil way and a second motor oil way which are arranged in parallel, and the first motor oil way comprises a first motor reversing valve for controlling a first motor and a first compensation valve for keeping the passing flow of the first motor reversing valve stable; and the second motor oil way comprises a second motor reversing valve for controlling the second motor and a second compensation valve for keeping the passing flow of the second motor reversing valve stable. The hydraulic principle of the main valve is optimized, the parallel arrangement mode between the two walking motor loops is optimized, the two walking motor loops are additionally provided with the compensation valves, the bypass oil way is additionally arranged on the oil return way of the steering reversing valve, the situation that the walking motors slip and idle is prevented, and oil return pressure loss during steering is reduced.
本申请公开了一种高空作业平台及其液压系统,液压系统包括转向油缸回路,包括用于控制转向油缸的转向换向阀;和行走马达回路,取油自转向换向阀的中位并包括并联设置的第一马达油路和第二马达油路,第一马达油路包括控制第一马达的第一马达换向阀以及用于使第一马达换向阀的通过流量保持稳定的第一补偿阀,第二马达油路包括控制第二马达的第二马达换向阀以及用于使第二马达换向阀的通过流量保持稳定的第二补偿阀。本申请优化了主阀液压原理,优化了两个行走马达回路之间的并联设置方式,两个行走马达回路均增设了补偿阀,在转向换向阀的回油路增设了旁通油路,防止行走马达出现打滑空转的情况,减小了转向时的回油压损。
Aerial work platform and hydraulic system thereof
高空作业平台及其液压系统
2024-04-26
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 |
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