Clamping structure for a stator core
AssigneeSiemens Energy, Inc.
InventorsDavid Thomas Allen, Travis John Vitello
Life of this patent
Estimating the term…
Abstract
A generator is provided comprising: a frame; a stator core comprising laminations; and clamping structure to axially clamp the laminations together. The clamping structure may comprise: a plurality of first finger plates engaging a first end of the stator core; a first spacer plate associated with the first finger plates and including a plurality of spaced apart first recesses; a plurality of first engagement structures, each comprising a bolt and a corresponding slidable bushing; a first spring ring in engagement with the first engagement structures; and first load-applying structure coupled to the frame to imparts a load to the first spring ring.
Claims17
A generator comprising:
- a frame;
- a stator core comprising laminations stacked in said frame;
- clamping structure to axially clamp said laminations together comprising:
- a plurality of first finger plates positioned adjacent to one another and engaging a first end of said stator core;
- a first spacer plate associated with said first finger plates, wherein said first spacer plate is ring-shaped and comprises a plurality of first recesses circumferentially spaced apart from one another, each of said first recesses having an oval shape with its longest dimension extending radially;
- a plurality of first engagement structures, wherein each of said first engagement structures comprises a bushing capable of sliding movement relative to said first spacer plate and a bolt in threaded engagement with said bushing;
- a first spring ring in engagement with said first engagement structures;
- and
- first load-applying structure coupled to said frame to impart a load to said first spring ring, wherein said spring ring transfers the load to said stator core via said first engagement structures, said first spacer plate and said first finger plates, said plurality of first engagement structures being capable of radial movement with said first spring ring and relative to said first spacer plate as the load is imparted to said first spring ring.
A generator comprising:
- a frame;
- a stator core comprising laminations stacked in said frame;
- clamping structure to axially clamp said laminations together comprising:
- a plurality of first finger plates positioned adjacent to one another and engaging a first end of said stator core;
- a first spacer plate associated with said first finger plates and including a plurality of spaced apart first recesses;
- a plurality of first engagement structures, each positioned within a corresponding first recess and comprising a bolt and a slidable bushing;
- a first spring ring in engagement with said first engagement structures, wherein said bolt has a first end in contact with said first spring ring, said bolt being in threaded engagement with said slidable bushing such that a distance of said first end of each bolt relative to said first spring ring being adjustable in an axial direction;
- and
- first load-applying structure coupled to said frame to impart a load to said first spring ring.
A generator comprising:
- a frame;
- a stator core comprising laminations stacked in said frame;
- clamping structure to axially clamp said laminations together comprising:
- a plurality of first finger plates positioned adjacent to one another and engaging a first end of said stator core;
- a first spacer plate associated with said first finger plates and including a plurality of spaced apart first recesses;
- a plurality of first engagement structures, each positioned within a corresponding first recess and comprising a bolt and a slidable bushing;
- a first spring ring in engagement with said first engagement structures;
- and
- first load-applying structure coupled to said frame to impart a load to said first spring ring,
- wherein each of said first engagement structures further comprises an O-ring coupled to a second end of said bolt so as to prevent said bolt and corresponding bushing from dropping out of said corresponding recess prior to said spring ring being positioned adjacent said first engagement structures.
Dependencies are inferred from the claim text.