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Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator

A technology of tightening the screw and measuring tooling, which is applied in the direction of mechanical measuring devices, measuring devices, and mechanical devices, etc. It can solve the problems of poor press-fitting effect between the iron core punching pieces, tensioning the screw to reach the stretching amount, and iron core pieces. Problems such as the lack of inter-pressure value can be achieved, and the effect of simple structure, good press-fitting effect and high press-fitting accuracy can be achieved.

Active Publication Date: 2011-01-19
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pressure value that needs to be applied during the press-fit process is calculated according to the force value of each tension screw provided by the design during the press-fit process of the stator core, but in the actual press-fit process, the hydraulic tensioner is used to hit the calculated After the pressure value is obtained, the tightening screw can not actually reach the stretching amount required by the design, and the pressure value between the core pieces cannot meet the design requirements, and the expected design effect cannot be realized, resulting in poor pressing effect between the core punching pieces. Waiting for a technical question

Method used

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  • Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator
  • Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator
  • Elongation measurement tool for stator iron core tension screw of hydraulic turbine generator

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Embodiment 1

[0024] A tool for measuring the elongation of the tension screw of the stator core of a hydroelectric generator set, which is composed of a pillar 1, an upper measuring rib 2, a lower measuring rib 3 and a measuring dial indicator 5, and the upper and lower measuring ribs are installed on the pillar , There is a measuring dial indicator under the lower measuring rib. The upper measuring rib has a positioning blind hole 6, and the lower measuring rib has an opening positioning hole 7, and the center of the hole is concentric with the center of the upper measuring rib positioning blind hole.

[0025] The measuring tool is equipped with a tightening screw for pressure testing and the measuring sleeve is composed of two seamless steel pipes with different diameters and two steel plates welded together. The components include an upper steel plate 8, a lower steel plate 11, an inner seamless steel pipe 9 and an outer seamless steel pipe 10.

[0026] The realization of this embodime...

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Abstract

The invention relates to an elongation measurement tool for a stator iron core tension screw of hydraulic turbine generator, belonging to the technical field of hydraulic turbine generator and characterized in that: the elongation measurement tool for the tension screw is composed of a brace, an upper measurement rib, a lower measurement rib and a measurement dial indicator, wherein the brace is equipped with the upper and lower measurement ribs, and the lower measurement rib is provided with the measurement dial indicator. The elongation measurement tool according to the invention has the advantages of simple structure, convenient operation, low cost, good practicability, saving time and labor, accurate and reliable data, high press-mounting accuracy of iron core, good press-mounting effect, etc.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric generators, in particular to a tool for measuring elongation of tensioning screw rods of a stator core of a hydroelectric generator set. Background technique [0002] At present, the pressure value that needs to be applied during the press-fit process is calculated according to the force value of each tension screw provided by the design during the press-fit process of the stator core, but in the actual press-fit process, the hydraulic tensioner is used to reach the calculated value. After the pressure value is obtained, the tightening screw can not actually reach the stretching amount required by the design, and the pressure value between the core pieces cannot meet the design requirements, and the expected design effect cannot be achieved, resulting in poor pressing effect between the core punching pieces. Waiting for technical issues. Contents of the invention [0003] In order to solv...

Claims

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Application Information

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IPC IPC(8): G01B5/02
Inventor 赵作勤李卫红刘尚斌
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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