Oil pressure drive system and gate valve

The invention discloses an oil pressure drive system and a gate valve. The oil pressure drive system is an oil pressure drive system that can expand and contract so as to press an object in a chamberin a vacuum atmosphere. The oil pressure drive system has a vacuum actuator and an oil pressure drivi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHIBAYAMA, KOUJI, SAKODA, SEIYA, SUZUKI, MIKIYA, WADA, SHINICHI, ISHIDA, TOMOYA, TOKUHIRA, SHINNOSUKE, TERUI, TAKAAKI, FURUSE, HARUKUNI, ENDO, JIROU, INOUE, HIDEAKI, WADE, TAKUYA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention discloses an oil pressure drive system and a gate valve. The oil pressure drive system is an oil pressure drive system that can expand and contract so as to press an object in a chamberin a vacuum atmosphere. The oil pressure drive system has a vacuum actuator and an oil pressure driving unit. The oil pressure driving unit includes an oil pressure generating unit, a driving unit fordriving the oil pressure generating unit, and a power source for supplying power to the driving unit. A telescopic rod can be driven by working oil pressure supplied from the oil pressure driving unit to the fixed section. The driving unit is provided with a reversal response portion, and when the telescopic rod moves in a direction away from the object by the force of an oil pressure urging member, the reversal response portion responds to the reverse state of the motor.