Rotor assembly method of permanent magnet generator

Abstract

The invention relates to a rotor assembly method of a permanent magnet generator. The assembly method comprises the following steps of: A, placing an assembly platform on a floor horizontally, and installing a bearing, a stator and a main shaft on the assembly platform, wherein the main shaft is vertical to the assembly platform; B, installing an extending shaft on an upper end of the main shaft; C, installing a rotor positioning baffle on a stator flange, and adjusting a position of the rotor positioning baffle so as to enable a reserved diameter of an inner side to be slightly larger than an outer diameter of a rotor; D, hanging the rotor to be above the stator, and adjusting a position of the rotor so as to enable an inner sleeve of a rotor shaft, the main shaft and the extending shaft to be concentric; and E, slowly falling the rotor onto the assembly platform along the extending shaft and the main shaft. The rotor assembly method of the permanent magnet generator is simple to operate, does not need special equipment, needs few tools, and is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the field of rotor assembly of a wind power generator, in particular to a rotor assembly method of a permanent magnet generator. Background technique [0002] Permanent magnet direct drive generators have become one of the mainstream technologies for wind power generation due to their high reliability and low maintenance. However, due to the large size and heavy weight of the high-power permanent magnet direct drive generator, it causes inconvenience in the manufacturing and assembly process. Eccentricity, causing difficulties when the rotor is fitted into the stator. [0003] For large permanent magnet direct drive generators, special equipment is generally used to assemble the rotor and stator, and the radial position of the rotor is guaranteed through the strong support of the equipment. The disadvantage of the above-mentioned prior art is that special equipment is required, which requires large investment and high cost. ,...

AI Technical Summary

Problems solved by technology

However, due to the large size and heavy weight of the high-power permanent magnet direct drive generator, it causes inconvenience in the manufacturing and assembly process. Eccentricity, causing difficulties when the rotor fits into the stator

[0003] For large permanent magnet direct drive generators, special equipment is generally used to assemble the rotor and stator, and the radial position of the rotor is guaranteed through the strong support of the equipment. The disadvantage of the above-mentioned prior art is that special equipment is required, which requires large investment and high cost. ,low efficiency

[0004] This shows that above-mentioned existing a kind of rotor assembly method of permanent magnet generator obviously still has inconvenience and defect in method and use, and urgently needs to be further improved

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