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A rotor structure for one-point grounding of a rotor of a double-shaft extension generator

A generator rotor and rotor structure technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., to avoid severe wear, reduce research and development costs, and avoid pollution of insulating couplings and severe wear

Pending Publication Date: 2019-01-18
SHANDONG QILU ELECTRIC MOTOR MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a rotor structure for double-shaft generator rotor one-point grounding; the rotor structure for double-shaft generator rotor one-point grounding It is designed for grounding. This patent innovatively completes the insulation design during the rotor production stage, avoiding the installation of insulating couplings on site to achieve a little grounding of the rotor, and thus avoiding the problems caused by the dirty environment on site and multiple disassembly and assembly. The insulation coupling is polluted and seriously worn to ensure the insulation effect. This patent has a simple structure, stable and reliable operation, and can well ensure the safe operation of the unit.

Method used

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  • A rotor structure for one-point grounding of a rotor of a double-shaft extension generator
  • A rotor structure for one-point grounding of a rotor of a double-shaft extension generator
  • A rotor structure for one-point grounding of a rotor of a double-shaft extension generator

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Embodiment 1

[0036] In this embodiment, in addition to the above-mentioned features, it also includes the following features, such as figure 1 , figure 2 and image 3 As shown, the insulating device 3 includes a coupling back wheel I5, and the coupling back wheel I5 is connected with a coupling back wheel II9 through an insulating bolt 6, an insulating washer 7 and a nut 8; the coupling back wheel I5 An insulating pad 10 is provided between the mating surface of the coupling and the mating surface of the coupling back wheel II9.

[0037]The insulating bolt 6 passes through the insulating washer 7, the counterbore of the coupling back wheel I5, the insulating pad 10 and the counterbore of the coupling back wheel II9 in turn, and is connected with the nut 8, and the nut 8 is connected with a locking screw 11 , the centerline 12 of the locking screw 11 is perpendicular to the centerline 13 of the insulating bolt 6 , and the tail end of the locking screw 11 passes through the locking washer...

Embodiment 2

[0040] The biggest difference between this embodiment and Embodiment 1 is the difference in the way the insulating pad is fixed. The mating surface of the coupling back wheel I5 is provided with a notch, and the insulating pad 10 is provided with a notch that matches the notch. convex mouth.

[0041] The design concept of this patent is to complete the insulation design at the rotor production stage, so that when it is used in a double-shaft extension generator, the rotor can still be grounded at one point, avoiding many problems caused by the installation of insulating couplings on site, and better ensuring the unit. of normal operation.

[0042] like figure 1 and Figure 4 As shown, this patent retains the original generator rotor grounding point 300 when it is used in a double-shaft extension generator 100, and the generator shaft 1 of this rotor structure is connected to the excitation shaft 4 in the excitation device 500 through the insulation device 3, so that this Th...

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Abstract

The invention discloses a rotor structure for one-point grounding of a rotor of a double-shaft extension generator, and belongs to the technical field of one-point grounding of the rotor of the double-shaft extension generator, which comprises a rotor, wherein the rotor comprises a generator rotating shaft, and a rotor body is arranged on the generator rotating shaft; The generator rotating shaftis connected with an excitation rotating shaft through an insulating device, and an excitation armature is arranged on the excitation rotating shaft. The invention is specially designed for one-pointgrounding of the rotor of the double-shaft extension generator, this patent innovatively completes the insulation design at the rotor production stage, The invention avoids the problem that the rotorcan be grounded only when the insulation coupling is installed on the spot, and further avoids the pollution and serious wear problems of the insulation coupling caused by the dirty workshop on the spot and the disassembly and assembly for many times, and guarantees the insulation effect. The patent has simple structure, stable and reliable operation and can ensure the safe operation of the unit well.

Description

technical field [0001] The invention relates to the technical field of one-point grounding of a double-shaft generator rotor, in particular to a rotor structure for one-point grounding of a double-shaft generator rotor. Background technique [0002] With the development of technology and the abundance of market products, steam turbines have developed high-efficiency double-cylinder double-speed units, and most gas turbines also require dragging air compressors at the end of the generator. The rotor is designed as a biaxial extension structure. [0003] When the generator is running, the rotor needs to meet a little grounding requirement, but the steam turbine rotor or the air compressor rotor is not designed to be insulated from the ground, so the steam turbine rotor or the air compressor rotor are respectively connected to the two ends of the generator rotor. In addition to the grounding point designed by the main body, the generator rotor will also be grounded through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/00H02K1/04
CPCH02K1/04H02K7/003
Inventor 于代军于鲁闽宋术青陈旭张衍康
Owner SHANDONG QILU ELECTRIC MOTOR MFG