Main shaft-sealing structure for hydroturbines

The utility model relates to a main shaft-sealing structure for hydroturbines, which comprises a watertight box, a main shaft-sealing sleeve, a watertight gland and a drain pipe, the main shaft-sealing sleeve is sleeved on a main shaft, the watertight box is of a halved structure, and is fixed on th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN HEGEN, LV YONGMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PISTONS PRODUCING MECHANICAL POWER SEALINGS THERMAL INSULATION IN GENERAL WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	The utility model relates to a main shaft-sealing structure for hydroturbines, which comprises a watertight box, a main shaft-sealing sleeve, a watertight gland and a drain pipe, the main shaft-sealing sleeve is sleeved on a main shaft, the watertight box is of a halved structure, and is fixed on the main body of a hydroturbine and mounted on the main shaft-sealing sleeve, the drain pipe is mounted on the lower end of the watertight box, and a comb structure for sealing is adopted between the main shaft-sealing sleeve and the watertight box. The main shaft-sealing structure mainly comprises the main shaft-sealing sleeve with outer teeth and the watertight box with inner teeth coupled with a drain hole, packing seal and other structures, the structure is simple, the friction can be reduced, and a good sealing effect can be achieved.