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Variable propeller gearbox of wind power generator

A technology for wind turbines and gearboxes, applied in the field of gearboxes, which can solve the problems of easy oil leakage of the output shaft, high reliability requirements, and oil leakage of the output shaft, so as to overcome the problem of oil leakage, reduce the overall weight, and reduce the installation effect of space

Active Publication Date: 2005-03-02
NANJING HIGH SPEED & ACCURATE GEAR GRP
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new wind power generator gear box for the practical problems that the reduction gear box, especially the variable pitch gear box for wind power generators, has a compact structure, high reliability requirements, and the output shaft is prone to oil leakage during the use of imported products. Paddle gearbox to solve the problem of output shaft oil leakage

Method used

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  • Variable propeller gearbox of wind power generator

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Embodiment Construction

[0008] The accompanying drawing discloses a non-limiting structural diagram of a specific embodiment involved in the design invention, and the design invention will be further described below in conjunction with the accompanying drawings.

[0009] Depend on figure 1 It can be seen that the embodiment of the present invention includes a flange 1 and a rear case 2, and a first and second stage internal ring gear group 3 and a third stage internal ring gear 4 are arranged between the flange 1 and the rear case 2, while the first The second-stage internal ring gear 3 and the third-stage internal ring gear 4 are also used as the box body of the gearbox, and the flange 1, the first and second-stage internal ring gear 3, the third-stage internal ring gear 4 and the rear box 2 pass through Bolt connection; the input shaft 14, the planetary frames at all levels, the sun gears at all levels, and the output gear shaft 15 are coaxial, the input shaft 14 is connected with the first-stage s...

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Abstract

The invention relates to a kind of oar-exchanging bear box of wind-driven generator. The box body includes flange, gear circle, and the back box body. Between the flange and the back box body there are the first-grade and the second-grade inner gear cluster, and the third-grade inner gear circle, input shaft, planet frames and solar wheels at all levels, output gear shaft axis, the input shaft is connected to the first-grade solar wheel, the planet frame at all levels are connected to the next grade solar wheel, the third-grade planet frame is connected with the output gear shaft, the output gear shaft is fixed on the back box body by the bearing. Each-grade planet frame has planet wheel, between the input shaft and flange, between output gear shaft and back box body, there is oil-sealing. Advantages of the invention: take the first and second inner gear circle cluster as a component and make the structure compact; take the inner gear circle cluster and the inner gear circles at all levels, as a part of the box, reduce the weight, and it is easy to process, convenient to dismantle and fix. The planet wheel usnig needle bearing, can increase the bearng capacity, and reduce installing room.

Description

technical field [0001] The invention relates to a gear box, in particular to a wind power generator pitch gear box. Background technique [0002] Compared with traditional thermal power generation, the use of wind power generation has the advantage of no pollution to the environment. Compared with hydropower generation, it has the advantages of low infrastructure cost, small footprint, and convenient maintenance. For large hydropower stations, storage The reservoir is also prone to certain hidden safety hazards downstream. In wind turbines, the pitch gearbox is a special gearbox for adjusting the influence of wind speed on wind turbines. Due to the compact structure and high reliability requirements of the pitch gearbox, the wind turbines currently used in my country The gearbox is mainly imported, and the output shaft of this yaw gearbox is prone to oil leakage. Contents of the invention [0003] The purpose of the present invention is to provide a new wind power generat...

Claims

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Application Information

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IPC IPC(8): F03D15/00
CPCF16H1/46
Inventor 刘建国袁包钢戴莹朱江平
Owner NANJING HIGH SPEED & ACCURATE GEAR GRP
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