Large pumped storage unit rotor
A pumped storage unit, a large-scale technology, applied to the magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve problems such as rotor magnetic pole loosening, coil cracking, generator sweeping accidents, etc., and achieve rigidity and strength Strengthening, improving connection strength, and easy installation
Active Publication Date: 2017-02-22
STATE GRID CORP OF CHINA +2
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Problems solved by technology
The frequent start of rotation in two directions will cause the rotor magnetic poles to loosen and the coils to crack, and in severe cases, it will cause generator sweeping accidents
[0003] In the prior art, the magnetic pole key is mainly used to fix the magnetic pole between a single magnetic pole and the yoke, but the processing requirements of the magnetic pole key are very high, the forming is difficult, and the connection between the magnetic pole key and the magnetic yoke The strength is not high, resulting in a lack of effective fixation to the overall structure of the rotor
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[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] Figure 1 to Figure 8 It shows an embodiment of the rotor of the large-scale pumped storage unit of the present invention, the rotor includes a yoke 2 and magnetic poles 3 that are evenly spaced along the outer circumference of the yoke 2 and three sets of them are evenly spaced along the axial direction in the gap between two adjacent magnetic poles 3 The wedging assembly 1 used to prevent the movement of the magnetic pole 3, the wedging assembly 1 is tightly connected with the yoke 2, in this structure, only the upper and middle parts need to be divided into the gap between two adjacent magnetic poles 3 along the circumferential direction of the rotor. , Arrange three groups of wedging components 1 at even intervals, and then fasten each group of wedging components 1 with the yoke 2. Its structure is simple and easy to instal...
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The invention discloses a large-scale water-pumping energy storage unit rotor. The rotor comprises a magnet yoke and magnetic poles which are uniformly arranged at intervals along the periphery of the magnet yoke, wherein three groups of wedging components used for preventing the magnetic poles from moving are uniformly and alternately arranged in a gap of the adjacent two magnetic poles and are fixedly connected with the magnet yoke. The rotor has the advantages of being simple in structure, convenient to assemble and capable of effectively enhancing the connecting strength of the magnetic poles and the magnet yoke.
Description
technical field [0001] The invention mainly relates to the field of water conservancy engineering, in particular to a large-scale pumped storage unit rotor. Background technique [0002] The rotor of a large pumped storage unit rotates clockwise under the pumping condition, and counterclockwise under the generating condition. The frequent start of rotation in both directions will cause the rotor magnetic poles to loosen and the coils to crack, and in severe cases, it will cause generator sweeping accidents. [0003] In the prior art, the magnetic pole key is mainly used to fix the magnetic pole between a single magnetic pole and the yoke, but the processing requirements of the magnetic pole key are very high, the forming is difficult, and the connection between the magnetic pole key and the magnetic yoke The strength is not high, resulting in a lack of effective fixation to the overall structure of the rotor. Contents of the invention [0004] The technical problem to be...
Claims
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IPC IPC(8): H02K1/28
CPCH02K1/28
Inventor 周铁林向明刘平刘康波
Owner STATE GRID CORP OF CHINA