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Double-stator permanent magnetic direct drive generator and assembly method thereof

A permanent magnet direct drive and generator technology, which is applied in the manufacture of motor generators, electromechanical devices, electrical components, etc., can solve the problems of difficult assembly process and large volume, and achieve the effect of convenient transportation and small volume

Active Publication Date: 2013-04-17
GUODIAN UNITED POWER TECH
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a double-stator permanent magnet direct-drive generator and its assembly method, so that the output power per unit volume is large, and the volume and weight of the motor are small, so as to overcome the large size of the existing large-scale generators. Difficulty in the assembly process

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  • Double-stator permanent magnetic direct drive generator and assembly method thereof
  • Double-stator permanent magnetic direct drive generator and assembly method thereof
  • Double-stator permanent magnetic direct drive generator and assembly method thereof

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Embodiment Construction

[0038] The technical problem to be solved by the present invention is to provide a dual-stator permanent magnet direct drive wind generator and its assembling process method that can greatly reduce the volume power ratio and cost of a megawatt-level and above permanent magnet direct drive wind generator.

[0039] see figure 1 As shown, the dual stator permanent magnet direct drive generator of the present invention includes a front bearing assembly, a rotor 2, an inner stator assembly 3, an outer stator assembly, a rear bearing assembly and connecting bolts.

[0040] The front bearing assembly includes a main shaft 51 fixedly connected to the hub 101 by bolts, a front bearing 52 sleeved on the main shaft 51 , and a rotor turntable 55 fastened to the main shaft 51 by hexagon head bolts 56 . Wherein, the front bearing 52 is preferably a double row tapered roller bearing, which can be provided with a front bearing rear end cover 53 and a front bearing sealing assembly 54, and is ...

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Abstract

The invention relates to a double-stator permanent magnetic direct drive generator and an assembly method thereof. The generator comprises a front bearing assembly, a rotor, an inner stator fitting, an outer stator fitting and a rear bearing assembly. The assembly method comprises the following steps of: inserting a guide rod into a top end mounting hole in a rear support of the rotor, and introducing and fixedly connecting the rotor; inserting a guide rod into a middle mounting hole of the rear support of the rotor, and mounting the inner stator fitting; inserting a guide rod into a mounting hole in a generator casing, passing the guide rod through a mounting hole in a rear flange, and mounting the outer stator fitting; mounting the front bearing assembly, and fixedly connecting a turntable of the rotor with the front end of the rotor; and fixedly connecting one end of a front flange with the front end of the generator casing, and fixedly connecting the other end of the front flange with the front bearing assembly. The fan-driven generator provided by the invention is high in output power of unit volume, and the assembly process difficulty and the cost of the large generator are reduced.

Description

technical field [0001] The invention relates to the field of permanent magnet direct drive generators, in particular to a double stator permanent magnet direct drive generator and an assembling method thereof. Background technique [0002] The continuous upgrading of wind power technology has become the theme of the domestic wind power industry, which is mainly reflected in the increase of single-unit capacity, new technology of wind turbines, and improvement of wind energy utilization. The state strongly supports the development of offshore wind energy, and the development of offshore wind farms and the development of large-scale offshore wind turbines will become key technologies. [0003] At present, the units installed in inland wind farms mainly include doubly-fed units and permanent magnet direct-drive wind turbines. Due to the high rated speed of the doubly-fed generators, a dedicated wind power gearbox is required, and the operating environment of the units is extrem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/04H02K5/16H02K15/00
Inventor 张莹博武春晓肖珊彩施文江孔凡兵潘磊
Owner GUODIAN UNITED POWER TECH
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