An apparatus for removing a coil from a core slot of a dynamoelectric machine
AssigneeSiemens Energy, Inc.
InventorsGeorge F. Dailey, Erics S. McDonald, Adam Stein, Michael Vindler, Jared Orndoff, Ryan Fayewicz, Jason V. Jurgen
Life of this patent
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Abstract
A method and apparatus which quickly clamps onto the copper strand bundle in the slot of a dynamoelectric machine and rips out the coil from the slot one axial position at a time. As the copper bundle is ripped from the slot the tooling moves along the slot from one end to the other.
Claims9
1-20. (canceled)
A system for removing a half turn of a coil from a slot of a dynamoelectric machine comprising:
- a coil cutting tool for cutting the coil at a first location;
- a upending tool that grips the coil at an end at the first location where the coil was cut and hydraulically or pneumatically upends the gripped end of the coil at least partially out of the slot;
- and
- and extraction tool that hydraulically or pneumatically grips the upended portion of the coil and pulls a first segment of the coil from the slot hydraulically or pneumatically serially, a segment at a time.
A cleaver for cutting a coil of a dynamoelectric machine comprising:
- two spaced, parallel, elongated rails that have opposing grooves running down a length of the rails;
- a blade having a first end that rides in one of the grooves and a second end that rides in the other of the grooves and a forward lead sharpened edge and a rear driving edge;
- a hydraulic or pneumatic cylinder and piston with the piston coupled to the rear driving edge of the blade and the cylinder being affixed to a first end of the elongated rails;
- and
- a reaction plate being removeably secured to a second end of the elongated rails, wherein a travel length of the piston stops the blade just above the reaction plate.
An upending tool for upending a coil of a dynamoelectric machine out of a slot in which it is firmly secured including:
- a five bar linkage comprising:
- a first bar having a first and second end;
- a second bar having a first and second end;
- a third bar formed from a piston rod of a hydraulic or pneumatic cylinder and having a cylinder end mounted on a support base and a piston rod end pivotably coupled to the first end of the first and second bars, the second end of the first bar and the base being securable to the slot, which forms the fifth bar;
- and
- a fourth bar having a first end pivotably coupled to the cylinder end of the third bar and a second end pivotably coupled to the second end of the second bar;
- and
- a clamp connected at one location to or adjacent the pivot coupling between the fourth and second bars and connectable at another location to the coil, wherein extending the piston rod upends the coil from the slot.
An extraction tool for removing a coil from a slot in a dynamoelectric machine comprising:
- a support fixture;
- a pneumatic or hydraulic cylinder and piston rod with the cylinder coupled to the support fixture;
- a tension plate mounted to the piston rod with a ball and socket connection;
- and
- a clamp for clamping the coil, the clamp coupled to said tension plate so the clamp can move angularly as the coil is raised from the slot.
Dependencies are inferred from the claim text.