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Sliding main bearing transmission chain and doubly-fed wind turbine including same

A technology for wind turbines and main bearings, applied in wind turbines, engines, machines/engines, etc., can solve the problems of unstable and reliable work, short bearing life, low bearing capacity, etc., to shorten the production cycle, good shock resistance, The effect of large carrying capacity

Active Publication Date: 2019-12-13
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the low bearing capacity of the rolling main bearing of the doubly-fed wind turbine in the prior art, poor shock resistance, not stable and reliable work, not easy to manufacture, long production cycle, high production cost, and impossible to maintain , the defect of short service life of the bearing, providing a sliding main bearing transmission chain and a doubly-fed wind turbine including the same

Method used

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  • Sliding main bearing transmission chain and doubly-fed wind turbine including same
  • Sliding main bearing transmission chain and doubly-fed wind turbine including same
  • Sliding main bearing transmission chain and doubly-fed wind turbine including same

Examples

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Embodiment 1

[0038] Such as Figure 1-Figure 3 As shown, this embodiment discloses a sliding main bearing transmission chain, wherein the sliding main bearing transmission chain includes a main bearing outer ring 1 , a bearing inner ring 2 , an axial slider 31 and a radial slider 32 .

[0039] Such as figure 1 and figure 2 As shown, the sliding main bearing transmission chain of this embodiment includes a bearing inner ring 2 and a main bearing outer ring 1, the bearing inner ring 2 has a radially outwardly protruding shoulder 21 and an inner ring body extending axially 22. The main bearing outer ring 1 has axial end plates 11 arranged on both axial sides of the shaft shoulder 21 and an axial extension 12 extending in the axial direction.

[0040] Such as figure 1 and figure 2 As shown, the sliding main bearing transmission chain of this embodiment includes two sets of axial sliders 31, and the two sets of axial sliders 31 are respectively accommodated in the axial end plates 11 on b...

Embodiment 2

[0062] Such as Figure 4 and Figure 5 As shown, other parts of the sliding main bearing transmission chain in this embodiment are the same as those in Embodiment 1, and will not be repeated here. The difference between this embodiment and Embodiment 1 is that there are multiple axial extensions 12 .

[0063] Among them, such as Figure 4 and Figure 5 As shown, the left axial extension 12 of this embodiment is integrally connected with the axial end plate 11 . The right axial extension 12 is separated from the axial end plate 11 . When a plurality of axially extending parts 12 are provided, the bending strength of the inner ring body 22 can be greatly enhanced through distribution in the axial direction of the inner ring body 22 .

[0064] Such as Figure 5 As shown, in this embodiment, both axial sides of the right axial extension 12 separated from the axial end plate 11 are provided with end face pressure plates 4 . Such as Figure 4 The axially outward side of the ...

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Abstract

The invention discloses a sliding main bearing transmission chain and a doubly-fed wind turbine including the same. The sliding main bearing transmission chain comprises a bearing inner ring, a main bearing outer ring, two sets of axial sliding blocks and at least one set of radial sliding blocks, wherein the bearing inner ring has a shaft shoulder protruding outwards in the radial direction and an inner ring body extending in the axial direction, and the main bearing outer ring has axial end plates arranged on the two sides of the shaft shoulder in the axial direction and an axially extendingportion extending in the axial direction; and the radial sliding blocks are axially limited through end face pressing plates, and the radial sliding blocks provide static friction isolation and loadtransmission between the inner ring body and the axial extending portion. Compared with a rolling main bearing, the sliding main bearing has the advantages that the bearing capacity is larger, the shock resistance is good, work is stable and reliable, and the reliability of a fan is improved. Manufacturing is easy to achieve, the production cycle is shortened, and the production cost is reduced. The end face pressing plates are detachable, the axial sliding blocks and the radial sliding blocks can be replaced, and the service life of the bearing is long.

Description

technical field [0001] The invention relates to a sliding main bearing transmission chain and a doubly-fed wind turbine comprising the same. Background technique [0002] At present, the rolling main bearing of the doubly-fed wind turbine transmission chain has low load-carrying capacity, poor shock resistance, not stable and reliable operation, not easy to manufacture, long production cycle, high production cost, impossible to maintain, and short service life of the bearing. [0003] Now there is also technology using sliding bearings, but the general maintainability is not high. Because sliding bearings have the disadvantages of greater heat generation and faster wear than rolling bearings. Therefore it is very necessary to design a new sliding main bearing transmission chain structure to solve this problem. Contents of the invention [0004] The technical problem to be solved by the present invention is to overcome the low bearing capacity of the rolling main bearing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/00F03D80/70
CPCF03D80/00F03D80/70Y02E10/72Y02P70/50
Inventor 曹李兴杨飞缪骏刘定
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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