Electric valve

Provided is an electrically operated valve capable of suppressing the movement of a planetary gear of a planetary gear device from being obstructed. A planetary gear device (70) of an electric valve (1) is provided with a first sun gear (71a), a first planetary gear (71b) made of metal and meshed wi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KOGI RIKI, OUCHI TOMOARI
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:	Provided is an electrically operated valve capable of suppressing the movement of a planetary gear of a planetary gear device from being obstructed. A planetary gear device (70) of an electric valve (1) is provided with a first sun gear (71a), a first planetary gear (71b) made of metal and meshed with the first sun gear (71a), a first planetary gear carrier (71c) supporting the first planetary gear (71b) in a rotatable mode, and a fixed gear (73) made of synthetic resin and meshed with the first planetary gear (71b). When the drive shaft (80) is rotated about the axis by the planetary gear device (70), the drive shaft moves in the vertical direction. The first planetary gear (71b) and the first carrier (71c) move in the vertical direction together with the drive shaft (80). The plurality of teeth of the first planetary gear (71b) are teeth (710) extending in the vertical direction. The upper end part of the tooth (710) is provided with an inclined surface (711) which is inclined relative to the vertical direc