Static pile driver and multistage pile pressing hydraulic control system thereof

The utility model discloses a multistage pile pressing hydraulic control system which comprises an oil pump, a main reversing valve, a main oil cylinder and a main fast pressing function valve which form a loop. A valve body of the main quick pressure function valve and a cylinder body of the main o...

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Bibliographische Detailangaben
Hauptverfasser:	ZENG SU, ZHOU SHENGGUI, XU CAIXING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL UNDERGROUND OR UNDERWATER STRUCTURES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a multistage pile pressing hydraulic control system which comprises an oil pump, a main reversing valve, a main oil cylinder and a main fast pressing function valve which form a loop. A valve body of the main quick pressure function valve and a cylinder body of the main oil cylinder are integrally formed; an oil inlet of the main reversing valve is communicated with an oil outlet of the oil pump; when the main reversing valve is located at a first station, an oil inlet of the main reversing valve is communicated with a rodless cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rod cavity of the main oil cylinder. When the main reversing valve is located at a second station, an oil inlet of the main reversing valve is communicated with a rod cavity of the main oil cylinder, and an oil return opening of the main reversing valve is communicated with a rodless cavity of the main oil cylinder; when the main fast pressing functio