Manufacturing technique of rigid magnetic yoke of motor rotor of large pumped storage generator

A technology of pumped storage and manufacturing process, which is applied in the manufacture of motor generators, electromechanical devices, electric components, etc., to achieve the effect of improving position, ensuring processing quality, and improving strength

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

AI Technical Summary

Problems solved by technology

Rigid yoke structure has no processing experience in China, and there is no successful experience in processing 60mm thick steel plates (discs) and processing the inner and outer round keyways of the yoke section. Therefore, there is an urgent need for a rigid yoke for pumped storage generator motors Manufacturing process

Method used

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  • Manufacturing technique of rigid magnetic yoke of motor rotor of large pumped storage generator
  • Manufacturing technique of rigid magnetic yoke of motor rotor of large pumped storage generator

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Embodiment Construction

[0035] Such as figure 1 , figure 2 As shown, the present invention is a manufacturing process for the rigid yoke of a large-scale pumped storage generator motor, which ensures the processing quality of the rigid yoke while shortening the production cycle, high production efficiency and high manufacturing precision. Technical scheme of the present invention is:

[0036] 1) The upper and lower planes of the single disc 1 are processed by CNC turning and boring integrated vertical lathe, and the thickness meets the requirements of the drawing; the inner and outer circles of the rough car are left 2mm on one side; when the station remains unchanged, the 56-φ36mm The positioning pin hole and the 28-φ40mm screw hole are all pre-drilled to φ32mm.

[0037] 2) Use the vertical lathe to finish the upper and lower planes of the air guide disc 2 to meet the requirements of the drawings; to finish the inner and outer circles, leave a margin of 2mm on one side.

[0038] 3) Use fifty-six...

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Abstract

The invention discloses a manufacturing technique of a rigid magnetic yoke of a motor rotor of a large pumped storage generator. According to the manufacturing technique, preassembling is conducted firstly through single disc bolt fixing holes, and rod fixing holes are drilled and reamed at the same time after a magnetic yoke section is fixed, so that the machining precision is improved; and an inner circular key groove is machined through a single section of a milling mold, and an outer circular T-shaped tail groove of the magnetic yoke section is machined integrally. By adoption of the manufacturing technique, the problems that scrap iron cannot be discharged through bolt holes which are reamed at the same time, and an inner circular key groove and an outer circular T-shaped tail grooveof a magnetic yoke section are staggered are solved, and successful hanging assembly of a magnetic pole in the subsequent stage is effectively ensured; and meanwhile, the manufacturing technique has the advantages of being easy and convenient to implement, high in machining precision, capable of shortening the machining cycle, and the like. The manufacturing technique is suitable for manufacturingrigid magnetic yokes of motors of all large pumped storage generators and has high application and popularization value.

Description

Technical field: [0001] The invention discloses a manufacturing process method for the rigid magnetic yoke of the rotor of a large-scale pumped storage generator motor. Background technique: [0002] The yoke is an extremely important part of the generator motor, which plays an important role in the operation of the generator motor unit. The stability of the yoke structure (to meet the normal, transitional and special operating requirements such as frequent start and stop, and working condition conversion) ), which directly affects the safe and reliable operation of the unit. With the development of the energy storage market, more and more rigid yoke structures are used for the rotor yoke, and the manufacturing precision of the unit is required to be higher and higher. The rigid yoke is assembled into a yoke by 50mm thick steel plates (disks), which are divided into nine sections along the axial direction. The height of a single yoke is 300mm. It is assembled from several t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00H02K15/03
CPCB23P15/00H02K15/03
Inventor 杨雪峰韩济远赵新青于春玲孙影荣雪宋佳音靳涛李轶青赵海军马强
Owner HARBIN ELECTRIC MASCH CO LTD
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