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Systems and methods for honing a shaft

a technology of honing system and shaft, which is applied in the field of system for honing a turbine or generator shaft, can solve the problems of significant loss of power plant revenu

Inactive Publication Date: 2017-08-24
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a system and method for honing a shaft by rotating and translating a rod using a drive assembly. The system includes a rod with a head, a drive motor, and a linear actuator for rotating and translating the rod and head along its axis. The technical effects of the patent text include enabling precise and efficient shaft machining with a compact and easy-to-use system.

Problems solved by technology

However, at least some known honing techniques are overly time-consuming, which can delay the inspection process and cause the associated generator to be offline (and unable to generate electricity) for an undesirable length of time, resulting in a significant loss in revenue for the power plant.

Method used

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  • Systems and methods for honing a shaft
  • Systems and methods for honing a shaft
  • Systems and methods for honing a shaft

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Embodiment Construction

[0012]The following detailed description illustrates shaft honing systems and methods by way of example and not by way of limitation. The description should enable one of ordinary skill in the art to make and use the honing systems, and the description describes several embodiments of the honing systems, including what is presently believed to be the best modes of making and using the honing systems. Exemplary honing systems are described herein as being useful for honing a turbine rotor shaft. However, it is contemplated that the honing systems have general application to a broad range of systems in a variety of fields other than turbines.

[0013]FIG. 1 illustrates an exemplary power plant 100. In the exemplary embodiment, power plant 100 includes a steam generator 102, a turbine 104, and an electrical generator 106. Steam generator 102 boils water to generate steam 108, and steam 108 is channeled through turbine 104. Turbine 104 includes casing 110 and a rotor 112 positioned at leas...

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PUM

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Abstract

A system for honing a shaft is provided. The system includes a rod having an axis and a head coupleable to the rod. The system also includes a drive motor coupleable to the rod such that the rod and the head are rotatable via the drive motor. The system further includes a linear actuator coupleable to the rod such that the rod and the head are translatable along the axis while being rotated via the drive motor.

Description

BACKGROUND[0001]The field of this disclosure relates generally to bore honing systems and, more particularly, to a system for honing a turbine or generator shaft.[0002]At least some known power plants include a steam generator, a turbine, and an electrical generator. The steam generator boils water to generate steam, and the steam is channeled through the turbine. As the steam flows through the turbine, the steam drives a rotor of the turbine, which in turn drives the electrical generator to which the rotor is coupled.[0003]The rotor typically has a shaft and a plurality of blades coupled to the shaft. Because the rotor blades and the rotor shaft experience thermal and mechanical stresses during operation of the turbine, it is desirable to periodically inspect the structural integrity of the rotor blades and the rotor shaft. At least some known inspection techniques include coupling a plurality of probes to the rotor shaft within a bore of the rotor shaft, and then transmitting elec...

Claims

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Application Information

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IPC IPC(8): B24B33/02B24B47/10B24B47/20
CPCB24B33/022B24B47/10B24B47/20B24B33/027B24B33/04B24B33/10B24B47/12B24B55/02H02K16/00B24B33/087
Inventor BLAIS, DONALD THOMASFORG, TODD JOSEPHSASSATELLI, JOHN MATTHEW
Owner GENERAL ELECTRIC CO