Method and apparatus for measuring wedge
AssigneeKabushiki Kaisha Toshiba
InventorToshimitsu Suyama
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Abstract
A wedge measuring apparatus comprising a measuring head, capable of being inserted between a stator and a rotor of a revolving electric machine, for testing a coil-urging state of wedges inserted in a slot, and a mechanism for moving the measuring head in the longitudinal direction of the stator and the circumferential direction of the rotor. A test for the coil-urging state is performed to prevent a coil from extending from an opening in the radial direction. In this case, the coil is inserted in a slot having the opening formed in a stator wall surface opposite to the rotor, and the slots are formed along the axial direction of the stator core.
Claims36
A wedge measuring apparatus applied to a structure having a first member having a surface with a slot in which a wedge is driven, and a second member which opposes the surface of said first member so as to be spaced apart therefrom by a predetermined gap, comprising:
- testing means, inserted in a gap formed between said first member and said second member, for testing a fitting state between said wedge and said slot;
- and
- shifting means for shifting said testing means in said gap.
A measuring apparatus for testing a slackened state of a "wedge" for holding a coil of a revolving electric machine into a slot, comprising:
- testing means, inserted in a gap between a rotor and a stator of said revolving electric machine, for testing a physical state of said wedge in said slot;
- and
- shifting means for movably holding said testing means and shifting said testing means in said gap in both longitudinal and circumferential directions of said stator.
A wedge measuring apparatus comprising:
- a measuring head capable of being inserted in a gap between a stator and a rotor of a revolving electric machine, formed along an axial direction of an iron core of said stator, said measuring head being arranged to detect a coil-urging state of a wedge inserted in a slot having an opening in a surface opposite to said rotor so as to prevent radial extension of said coil from said opening;
- and
- a shift mechanism for shifting said measuring head in both longitudinal and circumferential directions of said stator.
A wedge measuring method applied to a structure having a first member having a surface with a slot in which a wedge is driven, and a second member which opposes the surface of said first member so as to be spaced apart therefrom by a predetermined gap, comprising:
- inserting testing means for testing a fitting state between said wedge and said slot in a gap formed by said first member and said second member;
- moving said testing means in said gap;
- measuring a deflection amount of said wedge by said testing means;
- and
- judging on the basis of the deflection amount whether the fitting state between said wedge and said slot is satisfactory.
Dependencies are inferred from the claim text.