Apparatus for repairing generator rotor shaft neck

A generator rotor and journal technology, applied in the field of repair equipment for mechanical shafts, can solve problems such as low production efficiency, high labor intensity, and failure to achieve repair accuracy, and achieves improved repair quality, reduced labor intensity, and improved production efficiency. Effect

Active Publication Date: 2009-05-13
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0003] The generator rotor shaft diameter repairing equipment provided by the present invention solves the problems of high labor intensity

Method used

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  • Apparatus for repairing generator rotor shaft neck

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Embodiment Construction

[0010] A repairing device for generator rotor shaft journal, comprising a generator rotor support frame 1, a support frame 5, a generator rotor 6, a drive motor and a reducer 2 for the generator rotor, wherein the drive motor can adopt a variable frequency motor for stage adjustment, a transmission belt is set between the drive motor of the generator rotor and the output shaft of the reducer 2, and one end of the generator rotor 6, and a welding machine 3 is set on one side of the generator rotor 6, and the welding system can be horizontally The direction of horizontal movement, the horizontal movement distance depends on the repair range, the maximum is not more than 1000mm, but the actual application is about 200mm. The speed of the lateral and horizontal movement of the welding system matches the rotation speed of the rotor 6, so that the welding spots take a spiral trajectory, ensuring effective and reasonable overlapping of the deposited metal, and realizing the welding re...

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Abstract

The invention discloses a repairing device for a shaft neck of a power generator rotor, which belongs to repairing devices for a mechanical shaft, and the repairing device solves the problems that the production efficiency is low, the quality of welding, polishing and polishing is poor, and the precision required after repairing is not achieved in the prior art. The repairing device comprises support frames (1 and 5) of the power generator rotor, a power generator rotor (6) and a driving motor and a decelerator (2) of the power generator rotor, wherein, a welding machine (3) is arranged on one side of the power generator rotor (6), a bracket (7) of a grinding mechanism is arranged on the other side of the power generator rotor (6), a lifting table (8) capable of lifting in the vertical direction is arranged on the bracket (7) of the grinding mechanism, a fixed block (9) and a movable block (10) are arranged on the lifting table (8), the movable block (10) in the swallow-tailed groove of the fixed block (9) can feed forwards or exit backwards along the horizontal direction through driving a leading screw (15), a grinding head driving motor (11) is fixedly arranged on the movable block (10), and a grinding head (13) is arranged on the output shaft thereof. The repairing device is suitable for reparation of the shaft diameter of the steam turbine rotor after abrasion in the power station.

Description

technical field [0001] The invention relates to a repairing device for a mechanical shaft, in particular to a mechanical repairing device for welding and polishing the rotor of a steam turbine generator. Background technique [0002] The turbogenerator rotor is one of the most important equipment in power generation equipment. It is bulky and expensive. It is unrealistic to directly replace the worn rotor. The existing technology is to carry out manual surfacing welding and manual grinding and polishing on the damaged rotor. This repair method has the problems of high labor intensity, low production efficiency, low quality of welding, grinding and polishing, and the required precision cannot be achieved after repair. . Contents of the invention [0003] The generator rotor shaft diameter repairing equipment provided by the invention solves the problems in the prior art of high labor intensity, low production efficiency, low quality of welding, grinding and polishing, and ...

Claims

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Application Information

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IPC IPC(8): B23P6/00B24B5/36
Inventor 冀晋川李青
Owner STATE GRID CORP OF CHINA
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