Method and apparatus for measuring compression in a stator core
First Claim
1. A method for measuring the compression of a stator core comprising:
- attaching a measuring device to a tensioner;
placing said tensioner on an end of a through-bolt of said stator core;
performing at least one act of tensioning said stator core with said tensioner;
measuring a compression state of said stator core by said measuring device registers determining the amount of relative compression achieved by said at least one act of tensioning, wherein said relative compression is the amount of actual compression of the core and the amount of stretch of said through-bolt; and
determining an actual compression state of said stator core based on the measuring.
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Accused Products
Abstract
The present invention a method and apparatus for measuring the compression of a stator core 10 that comprises attaching a measuring device 22 to a tensioner 20, placing the tensioner on an end of a through-bolt 12 of the stator core, and performing at least one act of tensioning the stator core 10 with the tensioner. Then measuring a compression state of the stator core by the measuring device registers determining the amount of relative compression achieved by the act of tensioning, the relative compression is the amount of actual compression of the core and the amount of stretch of the through-bolt. Finally determining an actual compression state of the stator core based on the measuring.
24 Citations
14 Claims
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1. A method for measuring the compression of a stator core comprising:
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attaching a measuring device to a tensioner;
placing said tensioner on an end of a through-bolt of said stator core;
performing at least one act of tensioning said stator core with said tensioner;
measuring a compression state of said stator core by said measuring device registers determining the amount of relative compression achieved by said at least one act of tensioning, wherein said relative compression is the amount of actual compression of the core and the amount of stretch of said through-bolt; and
determining an actual compression state of said stator core based on the measuring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for measuring the compression of a stator core comprising:
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attaching a LVDT measuring device to a hydraulic tensioner;
placing said hydraulic tensioner on an end of a through-bolt of said stator core;
performing a series of tensioning steps to compress said stator core;
measuring a relative compression of said stator core at each of said tensioning steps, wherein said relative compression is the amount of actual compression of the core and the amount of stretch of said through-bolt; and
determining when the amount of relative compression has diminished and adjusting the number of steps in said tensioning steps. - View Dependent Claims (10, 11)
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12. An apparatus for determining the compression of a stator core, comprising:
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a through-bolt, wherein said through-bolt is part of said stator core;
a tensioner, wherein said tensioner is attached to said through-bolt; and
a measuring device, wherein said measuring device is mounted to said through-bolt and in intimate contact with said stator core;
wherein said measuring device measures a relative compression of said stator core, wherein said relative compression is the amount of actual compression of the core and the amount of stretch of said through-bolt. - View Dependent Claims (13, 14)
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Specification