Hydraulic variable pitch system for wind generating set and wind generating set

The embodiment of the invention provides a hydraulic variable pitch system for a wind generating set and the wind generating set. The hydraulic variable pitch system comprises an outer ring bearing, an inner ring bearing, an outer driving rotating plate, an inner driving rotating plate, an outer rin...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG ZHOUYAN, SUN YONGGANG, CHENG YUAN, XU YIQING, YANG FEI, YANG ZHENHUA, CAO JIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The embodiment of the invention provides a hydraulic variable pitch system for a wind generating set and the wind generating set. The hydraulic variable pitch system comprises an outer ring bearing, an inner ring bearing, an outer driving rotating plate, an inner driving rotating plate, an outer ring driving oil cylinder and an inner ring driving oil cylinder. The rotating center of the outer ring bearing coincides with the rotating center of the inner ring bearing, the outer ring of the outer ring bearing is connected with a hub, the inner ring of the outer ring bearing is connected with the outer driving rotating plate, the outer ring of the inner ring bearing is connected with the outer driving rotating plate, and the inner ring of the inner ring bearing is connected with the inner driving rotating plate. The outer ring driving oil cylinder is used for driving the outer driving rotating plate to rotate around the rotating center during extension or retraction, and the inner ring driving oil cylinder is use