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.
CN101949673AActive Publication Date: 2011-01-19TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
Publication Date
2011-01-19

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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.
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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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