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Wind turbine with fully integrated multiplier

A multiplier, wind turbine technology, applied in the field of wind turbines

Inactive Publication Date: 2011-03-02
GAMESA INNOVATION & TECH SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006]None of the drives mentioned above has successfully addressed the needs of the industry for high energy wind turbines

Method used

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  • Wind turbine with fully integrated multiplier
  • Wind turbine with fully integrated multiplier
  • Wind turbine with fully integrated multiplier

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Embodiment Construction

[0018] The transmission structure components in traditional wind turbines are composed of rotor hub, main shaft and multiplier. The main shaft is supported by one or two main bearings. main frame connection. The basic purpose of these structural components is to transmit the drive torque generated by the rotor into the generator and to increase the shaft speed in order to obtain a suitable rotational speed of the generator rotor. The second purpose is to transfer the weight of the rotor, the thrust and the asymmetrical rotor moment, where the asymmetrical rotor moment is the pitching moment and the spiraling moment, into the main frame and further into the tower and base.

[0019] A major problem with increasing the size of wind turbines is that main bearing arrangements become prohibitively expensive and technically complex relative to conventional two-bearing and one-bearing solutions. The non-rotating shaft solution also creates problems, as the connection between the rota...

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Abstract

Power train for wind turbine, which comprises a rotor bush (11), a non-rotating shaft (29), supporting the bush (11) by means of two bearings (31, 33) subject to combined radial force, a planetary multiplier (17) of at least one stage, a high-speed shaft (19), a generator (20), and a main support structure (21) on which the bush (11) of the rotor and the multiplier (17) have means for coupling, such that the torque is transferred directly to the multiplier (17) by means of the bush (11) of the rotor, externally to the non-rotating shaft (29). The primary unit of the multiplier is integrated in the assembly by means that allow it to be dismantled for maintenance purposes.

Description

technical field [0001] The invention relates to a wind turbine, in particular to a drive for a wind turbine. Background technique [0002] A number of different design approaches for wind turbine drive mechanical components have been proposed in the past. Below are descriptions of three of these methods. [0003] 1. Traditional two-axis scheme. In this design, the main shaft is supported by two radial force-loaded bearings, that is, wind energy that generates asymmetrical rotor moments, such as tilting moments and hovering moments, is force-transferred to the main frame through a pair of radial bearings. The main shaft is loaded by transmission torque and thrust, as well as bending moments due to asymmetrical rotor moments and the rotor's own weight. Recent patent applications, such as WO03031811 and US2003 / 0201647, also describe a coupling mechanism in which the rotor shaft is supported by two bearings on the nacelle of the wind generator. [0004] 2. One-axis scheme. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/02
CPCF05B2260/40311F03D11/0008F03D1/003F03D11/02Y02E10/722F03D80/70F03D15/00F03D80/50F03D15/10Y02E10/72
Inventor 埃里克·尼姆
Owner GAMESA INNOVATION & TECH SA
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