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Technological method for mounting floating type rigid magnet yoke

An installation method and a floating technology, which is applied in the field of floating rigid yoke installation, can solve the problems of inability to achieve positioning effect and inter-segment displacement, and achieve the effects of high yoke assembly efficiency, fast positioning, and cost savings for installation tools

Pending Publication Date: 2022-04-12
HARBIN ELECTRIC MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Since the rigid yoke is composed of multiple yoke sections stacked, if there is misalignment between the key grooves in each section of the yoke section, it will cause the secondary key of the yoke to not be in close contact with each section of the yoke section at the same time, and it will not be able to play a good role. positioning effect, there is a risk of inter-stage displacement after the unit runs at high speed

Method used

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  • Technological method for mounting floating type rigid magnet yoke
  • Technological method for mounting floating type rigid magnet yoke

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Embodiment Construction

[0039] like figure 1 , figure 2 As shown, the present invention provides a process method for installing a floating rigid yoke, which can complete the installation of a floating rigid yoke with high efficiency and high quality. The technical solution of the present invention is:

[0040] 1) Check the verticality of the main shaft by electric measuring method, and adjust it to and level to 0.02mm / M, check the height deviation of the hook height of the main vertical rib 1 with a level gauge, and it should not be greater than 0.15mm, otherwise use a file to repair the hook mating surface;

[0041] 2) Install the rotor measuring circle frame and adjust it to the rotation level of 0.02mm / M, and the concentricity with the main shaft or rotor bracket is 0.03mm;

[0042] 3) Hoist the first yoke section 3. During the hoisting process, ensure that the radial gap between the yoke section 3 and the main rib convex key 4 is uniform. Use a steel tape to check that the height difference be...

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Abstract

The invention discloses a technological method for installing a floating type rigid magnet yoke. The invention relates to an innovation of a water-turbine generator set, a generator motor set and a floating type rigid magnet yoke mounting process method, and is an essential change of the mounting method. By means of the process method, installation of the floating type rigid magnet yoke can be completed in a high-efficiency and high-quality mode, and stable operation of rotating parts of a unit is guaranteed. By means of special tools such as a tool adjusting key, it can be guaranteed that all the magnet yoke sections are adjusted and positioned rapidly and accurately, and the consistency of the sizes of all the assembled magnet yoke sections is guaranteed. Especially, the installation precision of the inner key groove is guaranteed, and a new magnet yoke auxiliary key lapping-in method is supplemented, so that all parts in the key groove are ensured to be in good contact after the magnet yoke auxiliary key is installed.

Description

technical field [0001] The invention relates to the technical field of on-site installation technology for hydroelectric generators and generator motors, in particular to a method for installing a floating rigid yoke. Background technique [0002] Floating rigid yokes are generally used on high-speed pumped storage generator motor rotors. Its installation quality plays a decisive role in the long-term stable operation of the unit, and has a high impact on the roundness, eccentricity, and verticality of the yoke. The traditional rigid yoke installation process cannot meet the installation requirements of the floating rigid yoke. The floating rigid yoke structure has no radial positioning structure, and relies entirely on the tangential yoke secondary key to position each segment of the rigid yoke. The secondary key of the yoke is a pair of wedge-shaped structure. After tightening, the gap formed by the inner key groove of the rigid yoke and the convex key of the yoke is fill...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02
Inventor 房金彪陈志明徐崴林恺迟赤彭潜赵新青刘涛宋佳音杨小龙孙文雷兴春张金平汤德海王红光
Owner HARBIN ELECTRIC MASCH CO LTD
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