Tool for making generator bars

Patent metadata

Field	Value
Publication number	US-2016164385-A1
Application number	US-201615045737-A
Country	US
Kind code	A1
Filing date	Feb 17, 2016
Priority date	Aug 19, 2013
Publication date	Jun 9, 2016
Grant date	—

Abstract

A tool for shaping generator bars for large power generators. In particular, a tool for shaping a stator bar out of a straight unprocessed bar.

First claim

1 . An index tower to assist in the process of shaping generator bars, the index tower comprising:
a clamp assembly with brackets configured to hold generator bars, a first rail configured to shift the clamp assembly in a first direction, a second rail configured to shift the first rail and the clamp assembly in a second direction, wherein the clamp assembly comprises a support arranged in between the first rail and the brackets, and wherein the brackets are pivotally mounted to the support.

2 . The index tower according to claim 1 , wherein the first and the second rails are arranged substantially perpendicular.

3 . The index tower according to claim 1 , wherein the support is configured to rotate about an axis substantially parallel to the direction of the second rail.

4 . The index tower according to claim 1 , wherein at least one of the rails provides a lead screw for moving at least one member of the index tower.

5 . The index tower according to claim 4 , wherein the lead screw connects to a wheel.

6 . The index tower according to claim 1 , wherein at least one rail is configured to shift at least one member of the index tower manually.

7 . The index tower according to claim 1 , wherein at least one rail is configured to shift at least one member of the index tower automatically.

8 . The index tower according to claim 1 , wherein the brackets are configured to engage and disengage hydraulically.

9 . The index tower according to claim 1 , wherein the brackets are configured to engage and disengage pneumatically.

10 . The index tower according to claim 1 , wherein the index tower comprises at least one motor configured to rotate the pivotally mounted brackets with respect to the support.

11 . A complete tool for shaping generator bars, wherein the complete tool comprises a foundation and at least one index tower according to claim 1 , wherein the at least one index tower is mounted to the foundation.

12 . The complete tool for shaping generator bars according to claim 11 , wherein the complete tool comprises less than 20 index towers.

13 . The complete tool for shaping generator bars according to claim 11 , wherein the complete tool comprises less than 12 index towers.

14 . The complete tool for shaping generator bars according to claim 11 , wherein the complete tool comprises less than 8 index towers.

15 . The complete tool for shaping generator bars according to claim 11 , wherein the complete tool comprises at least one roller and an overhead servo three-axis system, wherein the overhead servo three-axis system moves the at least one roller, wherein the at least one roller is configured to move a generator bar in the right position so at least one pair of brackets of at least one index tower can engage said generator bar.

Assignees

• Alstom Technology Ltd

Inventors

• Stalder Daniel Fritz
• Fischer Reinhard
• Morris Thomas
• Honold Simon Christoph
• Kiss Patrik

Classifications

• H02K15/0431

  Concentrated windings · CPC title

• H02K15/0414 Primary

  the windings consisting of separate elements, e.g. bars, segments or half coils · CPC title

• H02K3/14 Primary

  with transposed conductors, e.g. twisted conductors · CPC title