The invention relates to the technical field of cross-country overhead working trucks, and discloses a hydraulic four-wheel-drive valve bank for a cross-country overhead working truck, which comprises a valve block, and an overflow valve I, a flow priority valve, an overflow valve II and a proportional valve are fixedly mounted on the upper end surface of the valve block. According to the hydraulic four-wheel-drive valve bank for the cross-country overhead working truck, the four hydraulic motors drive the four wheels of the overhead working truck, the valve bank can achieve four-wheel-drive large traction force and two-wheel-drive high-speed switching, meanwhile, the valve bank is provided with the flow priority valve, it is guaranteed that priority flow is provided in time when equipment needs to steer, and the steering efficiency is improved. The proportional valve can set the required flow through the main controller to meet the requirement for the walking speed, the first electromagnetic reversing valve meets the requirement for electric control over advancing and retreating, the balance valve guarantees the braking and starting stability of the vehicle, the comfortable driving feeling is improved, and the flow distribution valve can achieve the anti-slip function when a certain driving wheel of the vehicle is poor in grounding condition. And the electromagnetic directional valve II realizes high-speed and low-speed switching.

    本发明涉及越野高空作业车技术领域,且公开了一种用于越野高空作业车的液压四驱阀组,包括阀块,所述阀块的上端面固定安装有溢流阀一、流量优先阀、溢流阀二、比例阀。该用于越野高空作业车的液压四驱阀组,有四个液压马达驱动高空作业车的四个车轮,该阀组可以实现四驱大牵引力,两驱高速切换,同时阀组带有流量优先阀,保证在设备需要转向时及时提供优先流量,比例阀可以通过主控制器设定所需流量满足行走速度的需要,电磁换向阀一实现前进后退电控的需要,平衡阀保证车辆制动与启动平稳性,提升舒适驾驶感,流量分配阀可以在车辆某个驱动轮因接地条件不好时实现防打滑功能,以免整车丧失牵引力,电磁换向阀二实现高低速切换。


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    Title :

    Hydraulic four-wheel-drive valve group for cross-country overhead working truck and application method of hydraulic four-wheel-drive valve group


    Additional title:

    一种用于越野高空作业车的液压四驱阀组及其应用方法


    Contributors:

    Publication date :

    2023-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B62D MOTOR VEHICLES , Motorfahrzeuge



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