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Wind generating set and transmission shaft system thereof

A technology for wind turbines and drive shafts, which is applied in wind turbines, wind power generation, engines, etc., can solve problems such as the inability to meet the economical requirements of large megawatts, and achieve the effects of size reduction, cost reduction, and good overall rigidity

Pending Publication Date: 2021-09-28
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current support design of the transmission shaft system can no longer meet the economical requirements of large megawatt and heavy load wind turbines

Method used

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  • Wind generating set and transmission shaft system thereof
  • Wind generating set and transmission shaft system thereof
  • Wind generating set and transmission shaft system thereof

Examples

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Embodiment Construction

[0039] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0040] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a wind generating set and a transmission shaft system thereof. The transmission shaft system comprises a static part, a rotating shaft, a first bearing and a second bearing, and the rotating shaft is used for connecting a wind wheel of the wind generating set; the side, close to the wind wheel, of the first bearing is arranged between the static part and the rotating shaft, and the side, away from the wind wheel, of the second bearing is arranged between the static part and the rotating shaft; the rotating shaft is arranged on the outer side of the static part in a sleeving mode, the first bearing and the second bearing jointly support the rotating shaft, and the first bearing and the second bearing are both single-row tapered roller bearings. The two single-row tapered roller bearings are adopted to support the rotating shaft, the single-row tapered roller bearings can bear radial and axial combined loads mainly in the radial direction and have pre-tightening force, the bearing capacity of the transmission shaft system is improved, the overall rigidity of the shaft system is good, the structural deformation is small, the requirement of the bearings for the rigidity of the rotating shaft and the static part is lowered, the size of a rotor shaft and the static part is reduced, and the transmission shaft system cost is reduced.

Description

technical field [0001] The present application relates to the field of wind power generators, in particular to a wind power generator set and its transmission shaft system. Background technique [0002] At present, the transmission shaft system of wind turbines mostly uses double-row spherical roller bearings. Based on double-row spherical roller bearings, there are two main types of support for the transmission shaft system, one is a three-point support design, and the other is a two-point support design. Support design. The three-point support adopts a double-row spherical roller bearing to support the design scheme of the rotating shaft of the wind rotor and the elastic support of the torque arm of the gearbox, and the two-point support adopts a spherical roller bearing and a self-aligning roller bearing to support the rotating shaft of the wind rotor, or It is a design scheme in which a spherical roller bearing and a cylindrical roller bearing support the rotating shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/70F03D15/00F03D80/00
CPCF03D80/70F03D15/00F03D80/00Y02E10/72
Inventor 李小伟曹广启孙振军马龙
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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