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Tightly-punching assembly process of large-size steam turbine generator rotor groove wedge

A technology of steam turbine generator and rotor slot wedge, which is applied in the manufacture of stator/rotor body, etc., can solve the problems of slot wedge loosening, complicated operation, affecting the assembly quality of rotor slot wedge, etc. Effect

Active Publication Date: 2018-08-24
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the slot wedge is assembled, the rotor coil sinks down the slot wall and expands outside the slot under the influence of gravity, which affects the assembly quality of the rotor slot wedge and causes the slot wedge to loosen; after

Method used

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  • Tightly-punching assembly process of large-size steam turbine generator rotor groove wedge
  • Tightly-punching assembly process of large-size steam turbine generator rotor groove wedge

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Experimental program
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Embodiment Construction

[0018] The purpose of the present invention is to provide a method for assembling the rotor slot wedge of a large steam turbine generator. The technical scheme of the present invention is:

[0019] 1) Preparations before assembly of rotor slot wedge 4: Place the rotor on the electric roller frame, find the level, and fix the coil in the lower wire slot with temporary tools at four points;

[0020] 2) Rotor slot wedge 4 assembly equipment installation: install four axial rolling guides 1 on the rotor body, install a rotary slide 2 and an arc guide 3 on each side of the two axial guides 1, on the rotary slide 2 Install hydraulic thrust cylinder 5;

[0021] 3) Adjust the assembly position of the rotor wedge 4: Rotate the rotor so that the arc guide 3 is above the rotor level; adjust the rotary slide 2 and the hydraulic thrust cylinder 5 to the installation slot position of the rotor wedge 4;

[0022] 4) Assembly of the lower parts of the rotor slot wedge 4: Assemble the insulating space...

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Abstract

The invention relates to a tightly-punching assembly process of a large-size steam turbine generator rotor groove wedge. Axial rolling guide rails are arranged on a rotor body, a rotation sliding seatand an arc guide rail are arranged on the two axial rolling guide rails, a hydraulic push oil cylinder is arranged on the rotation sliding seat, the rotor groove wedge is arranged at an arbitrary position above a horizontal central line of a rotor, the defect of tightening insufficiency caused by settle-down of a rotor coil and external expansion of a downward slot in an original process of tightly punching the groove wedge at a horizontal position or the rotor is overcome, and the problems that the hydraulic push oil cylinder is pushed by manual, the rotor is rotated for many times and a tooth part of an installation groove is deformed are solved. The process has the advantages of reasonable design, time and labor saving and the like and is simple and convenient to operate, the assemblyquality of a product is ensured, and the cost performance of the product is improved.

Description

Technical field [0001] The invention relates to a method for tightening and assembling a rotor slot wedge of a large steam turbine generator Background technique [0002] In the past, when large-scale turbo-generators used hydraulic equipment for rotor slot wedge assembly and tightening operations, the slot wedge assembly positions were all at the rotor horizontal centerline position. When assembling the slot wedge, the rotor coil sinks under the influence of gravity and expands outside the downward slot wall, which affects the assembly quality of the rotor slot wedge and causes the slot wedge to loosen; after every slot wedge is assembled, the rotor needs Rotate to the next slot assembly position, the hydraulic thrust cylinder needs to be manually pushed to the slot wedge assembly position on the slide, which is cumbersome to operate. Using this new process method to tighten the rotor slot wedges, the slot wedges can be assembled at any position above the horizontal centerline ...

Claims

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Application Information

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IPC IPC(8): H02K15/02
CPCH02K15/02
Inventor 李冰丁旭东张晓龙贺云龙刘瑜许策张杨董伟夫
Owner HARBIN ELECTRIC MASCH CO LTD