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A gear unit for a wind turbine

A gear unit, wind turbine technology, applied in the control of wind turbines, engine components, wind turbines, etc., can solve the problem that the gear unit is not properly sealed, hinders the development of more integrated design of wind turbines, and consumes large space for rotational energy connectors, etc. problem, to achieve the effect of size reduction, easy implementation, and more space

Inactive Publication Date: 2012-07-18
HANSEN TRANSMISSIONS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] In practice, for example when the gear unit is not properly sealed due to leakage through the energy tube, the cause may be poor assembly by the gear unit manufacturer, and for example when the energy tube is installed correctly the cause may be the wind turbine manufacture quotient caused by overloading the application
[0028] Another disadvantage of these known gear units with rotary energy tubes is that the rotary energy connectors consume a lot of space, which hinders the development of more integrated designs of wind turbines

Method used

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  • A gear unit for a wind turbine
  • A gear unit for a wind turbine
  • A gear unit for a wind turbine

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Embodiment Construction

[0045] exist figure 1 The wind turbine 1 shown in FIG. 2 mainly comprises a support structure 2 on which a nacelle 3 is mounted in a rotatable manner.

[0046] This allows the positioning of the wind turbine 1 relative to the direction of the wind.

[0047] The nacelle 3 comprises a rotor 4 of the wind turbine 1 having a rotor hub 5 and rotor blades 6 , the rotor 4 being connected to a generator 7 via a gear unit 8 .

[0048] Such a gear unit 8 is the subject of the present invention and is shown schematically in more detail at figure 2 and image 3 In, for a known embodiment according to the state of the art, the figures represent the state after and before assembly of the wind turbine respectively.

[0049] It is known that the purpose of such a gear unit 8 is to convert the slow rotation of the rotor hub 5 and rotor blades 6 connected to the input shaft 9 of the gear unit 8 to the output shaft 10 of the gear unit 8 connected to the generator 7 to have sufficient rotati...

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Abstract

The invention relates to a gear unit (8) for a wind turbine (1) having an input shaft (9) connected to a rotor hub (5) of the wind turbine (1) and an output shaft (10) for connection to an electrical power generator (7), characterized in that the gear unit (8) is provided with a hollow tube (30) which is concentric with the main rotation axis (A-A') and which extends through the gear unit (8) from the input shaft (9) to the output shaft (10) and through the electrical power generator (7), whereby this hollow tube (30) provides a sealing for the gear unit (8) in storage and / or transport, and the in the hollow tube (30), an energy tube (24) is provided for housing a cable circuit (25) and / or a tubing (26).

Description

technical field [0001] The invention relates to gear units for wind turbines. [0002] More specifically, the invention relates to a gear unit for a wind turbine having an input shaft connected to a rotor blade of the wind turbine and an output shaft for connection to a generator. Background technique [0003] Such gear units are already known from the state of the art. Therefore, a gear unit usually contains one or more planetary stages, where the planetary carrier of the first planetary stage fulfills the responsibility of the input shaft and the output shaft is usually the shaft on which the sun gear of the last planetary stage is mounted. [0004] In this way, the slow rotation of the rotor blades is converted into a rotation fast enough for the generator to function properly. [0005] However, a practical problem with all known gear units is how to control the so-called rotor blade pitch, for example. This pitch is the amount of rotation imparted to the rotor blade a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D9/00F03D1/00F03D7/04
CPCY02E10/725F05B2240/57Y02E10/722F03D11/02Y02E10/72F05B2240/61F16H1/28F03D1/005F05B2260/40311F03D15/00F03D13/40F03D15/10F03D9/25
Inventor 萨恩斯·德·乌加特·帕特里克巴拉尼亚诺·艾特克瑟巴里亚·哈维尔维姆·德肯德恩维姆·德·拉埃蒂
Owner HANSEN TRANSMISSIONS