Protective structure for water turbine runner coupling bolt

Protective structure for water turbine runner coupling bolt

The utility model relates to a protective structure for a turbine runner coupling bolt. At present, for a water diversion type power station with the large silt content, silt enters a fit clearance between a coupling bolt screw and a nut along with water flow, and therefore a bolt is jammed. The pro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LIN WEI, HUA RONGJUN, YANG XUANYIN, CHEN YONGJUN, HAN FANGBO
Format: Patent
Sprache:chi ; eng
Schlagworte:
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
THERMAL INSULATION IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:The utility model relates to a protective structure for a turbine runner coupling bolt. At present, for a water diversion type power station with the large silt content, silt enters a fit clearance between a coupling bolt screw and a nut along with water flow, and therefore a bolt is jammed. The protective structure for the turbine runner coupling bolt comprises a protective cover body, the protective cover body is composed of a hexagon nut protective cover (1), a threaded rod protective cover (2) and a flange plate (3), the flange plate is connected with the hexagon nut protective cover, the hexagon nut protective cover is connected with the threaded rod protective cover, and the hexagon nut protective cover, the threaded rod protective cover and the flange plate are of an integrated structure; the top of the threaded rod protective cover is fixedly connected with a cover body (4), a threaded hole (5) is formed in the circle center of the cover body, a locking bolt (6) is screwed into the threaded hole, and