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Method for installing and positioning mega nuclear power stator spring plate

A technology for installation and positioning and spring plate, which is applied in the technical field of generator assembly process, can solve the problems of difficulty in installing the spring plate at the same level, inability to connect and assemble, dislocation of screw holes, etc., so as to save the time of assembling and improve production efficiency. , the effect of high positioning accuracy

Active Publication Date: 2014-11-26
SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the spring plates are installed on the inner stator, it is difficult to ensure that all the spring plates on the same side of the inner stator of the generator (there are 11 spring plates on each side) are installed at the same level. If they are not at the same level, the inner stator penetrates into the outer frame Finally, the light hole on the lower part of the spring plate and the screw hole on the spring plate seat on the outer machine base will be misaligned, and the connection and assembly cannot be carried out smoothly (there are 154 assembly connection holes in total)

Method used

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  • Method for installing and positioning mega nuclear power stator spring plate
  • Method for installing and positioning mega nuclear power stator spring plate
  • Method for installing and positioning mega nuclear power stator spring plate

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Embodiment Construction

[0024] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below with accompanying drawings.

[0025] The installation and positioning method of a million-level nuclear power stator spring plate provided by the present invention consists of the following 8 steps:

[0026] Step 1: Make the Pin Bolt.

[0027] combine figure 1 , The pin bolt is an overall structure composed of threaded part 4, cylindrical part 5 and hexagonal head part 6 connected in sequence, diameter size: threaded part ≤ cylindrical part < hexagonal head part; the diameter of the cylindrical part is smaller than the diameter of the hole on the spring plate Smaller 0.02 ~ 0.05mm. If the spring plate is Φ35mm, the cylindrical part of the pin bolt is Φ34.95mm~Φ34.98mm. The threaded part on the pin bolt is connected with the threaded hole M30 of the inner stator. 33 pieces of pin bolts need to be processed first, because each spring plate uses 3 pin bolts, ...

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Abstract

The invention provides a method for installing and positioning a mega nuclear power stator spring plate. The method comprises the following steps of: positioning and connecting each spring plate to an inner stator by using three pin bolts; fixing the other holes in each spring plate on the inner stator by using product bolts; and replacing the three pin bolts on each spring plate with the product bolts to complete assembly of all spring plates with the inner stator. Due to the adoption of the method provided by the invention, the defects existing in the prior art are overcome; and the method has the advantages of high positioning accuracy, safety, reliability, increase in the production efficiency, reduction in the labor strength, easiness, practicability, high universality and convenience in operating.

Description

technical field [0001] The invention relates to a method for installing and positioning million-level nuclear power stator spring plates, and belongs to the technical field of generator assembly process. Background technique [0002] The 1100MW nuclear energy turbogenerator is currently the largest turbogenerator product successfully independently developed in my country. The stator of this product is composed of inner and outer stators in the design structure, and the inner stator and the outer frame are connected by a connected by spring plates. There are two types of spring plates, namely large spring plates and small spring plates. The small spring plate is located on the outer circle at the bottom of the inner stator, and has been installed and welded on the welded part of the inner stator ring cage. After the inner stator is assembled, it will be fixed and welded to the support plate on the inner circle at the bottom of the outer frame. There is no problem. The key i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P17/00
Inventor 刘佩荣周振福张新玺夏鲜良周瑜周雅鹏
Owner SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD
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