The invention discloses a control loop which comprises an energy accumulator used for conveying pressure oil, an oil conveying pipeline connected with the energy accumulator, a first control pipeline,a second control pipeline and a hydraulic motor used for rotationally driving a cab to advance and retreat. The first control pipeline and the second control pipeline are communicated with the oil conveying pipeline through a reversing valve mechanism, and both the first control pipeline and the second control pipeline are communicated with the hydraulic motor; when the reversing valve mechanismis communicated with the oil conveying pipeline and the first control pipeline, the pressure oil is used for driving the hydraulic motor to rotate forwards; and when the reversing valve mechanism is communicated with the oil conveying pipeline and the second control pipeline, the pressure oil is used for driving the hydraulic motor to rotate reversely. The invention further discloses an engineering vehicle with the movable cab, and the engineering vehicle comprises the control loop. The control loop and the engineering vehicle can improve the view of the cab and reduce potential safety hazardsof operation.
本发明公开了一种控制回路,包括用以输送压力油的蓄能器、连接所述蓄能器的输油管路、第一控制管路、第二控制管路和用以旋转带动驾驶室前进和后退的液压马达;所述第一控制管路和所述第二控制管路通过换向阀机构连通所述输油管路,所述第一控制管路和所述第二控制管路均与所述液压马达连通;当所述换向阀机构连通所述输油管路和所述第一控制管路时,压力油用以驱动所述液压马达正转;当所述换向阀机构连通所述输油管路和所述第二控制管路时,压力油用以驱动所述液压马达反转。本发明还公开一种包括上述控制回路的驾驶室可移动式工程车辆。上述控制回路及工程车辆能够改善驾驶室视野,降低作业安全隐患。
Engineering vehicle with movable cab and control loop
驾驶室可移动式工程车辆及控制回路
2020-05-12
Patent
Elektronische Ressource
Chinesisch
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / B66C Krane , CRANES / 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 |
Movable engineering vehicle for motor vehicle service and maintenance
Europäisches Patentamt | 2015
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