Hydraulic amplitude variation loop of arm support and oil-liquid hybrid power system

The utility model discloses a hydraulic amplitude variation loop of an arm support, wherein the hydraulic amplitude variation loop comprises an oil tank, an amplitude variation pump, a reversing valve, balance valves and amplitude variation oil cylinders. An oil inlet of the amplitude variation pump...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZUO CHUNGENG, LIU JINGGUANG, ZHANG JIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CRANES DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAULING HEATING HOISTING HYDRAULICS OR PNEUMATICS IN GENERAL LIFTING LIGHTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES MECHANICAL ENGINEERING PERFORMING OPERATIONS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a hydraulic amplitude variation loop of an arm support, wherein the hydraulic amplitude variation loop comprises an oil tank, an amplitude variation pump, a reversing valve, balance valves and amplitude variation oil cylinders. An oil inlet of the amplitude variation pump is communicated with the oil tank, an oil outlet of the amplitude variation pump is connected with an oil inlet of the reversing valve, a first working oil port of the reversing valve is communicated with rod cavities of the amplitude variation oil cylinders, and a second working oil port of the reversing valve is connected with non-rod cavities of the amplitude variation oil cylinders. An oil return port of the reversing valve is communicated with the oil tank, and each balance valve is connected between the second working oil port of the reversing valve and the non-rod cavity of each amplitude variation oil cylinder. The hydraulic amplitude variation loop further comprises energy accumulators and first switch va