Coupling structure, transmission system and method for semi-direct drive unit
A transmission system and coupling technology, applied in the field of coupling structure, can solve the problem of not meeting the transmission requirements of the gearbox shaft of the semi-direct drive unit, and achieve the effect of ensuring electrical insulation
Active Publication Date: 2020-04-28
CRRC WIND POWER(SHANDONG) CO LTD
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Problems solved by technology
However, the traditional coupling connects the gearbox shaft and the generator shaft through the structure of tensioning sleeves at both ends, and its structure cannot meet the transmission requirements of the integrated structure of the gearbox shaft and generator shaft of the semi-direct drive unit.
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
[0025] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...
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The invention discloses a coupling structure used for a semi direct drive unit, a transmission system and a method. When a unit works, an output shaft of a gear case penetrates a hollow zone of a power generator, a coupling body is driven through interference fit with an expansion sleeve, and a flange disc drives a rotor input flange of the power generator; when input torque of an output shaft ofthe gear case exceeds a limit value, an ultimate torque limiter limits twisting force transmitted by the transmission system in a sliding manner, the ultimate torque limiter returns connection after the overload condition disappears, and a coupling normally works; when the coupling needs to stop working, a brake disc is braked through a brake; and by means of the coupling structure, too large torque can be prevented from acting on a gear case shaft, and electric insulation between the gear case and the power generator is guaranteed.
Description
technical field [0001] The invention relates to a shaft coupling structure, a transmission system and a method for a semi-direct drive unit. Background technique [0002] Among the wind turbines, the semi-direct drive unit takes into account many advantages of double-fed and direct drive units, and the unit has high reliability, which has attracted more and more attention from manufacturers. In the semi-direct drive unit, the transmission ratio of the gearbox is relatively low, and a two-stage planetary gear train is mostly used, and the gearbox and the generator are mostly integrated. However, the traditional coupling connects the gearbox shaft and the generator shaft through the structure of tensioning sleeves at both ends, and its structural form cannot meet the transmission requirements of the integrated structure of the gearbox shaft and generator shaft of the semi-direct drive unit. [0003] The coupling structure of the semi-direct drive unit is novel. The transmissi...
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IPC IPC(8): F16D67/00F16D7/02H02K7/00
Inventor 成臻赵登利于良峰
Owner CRRC WIND POWER(SHANDONG) CO LTD