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Integrated semi-direct drive wind turbine drive chain and its gear box

A technology of wind power generators and transmission chains, which is applied in the direction of wind power generators, wind power generation, belts/chains/gears, etc. It can solve the problems of high-power wind turbines, short axial length, and small installation space, etc., and achieves simple structure, Improvement of performance and life, and effect of cost reduction

Active Publication Date: 2016-05-04
CRRC QISHUYAN INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the addition of two intermediate wheels, this structure forms a secondary shunt, so the carrying capacity can be significantly improved. At the same time, because it is a single-stage transmission, the axial length is relatively short, and the required installation space is small. However, there is a transmission in this patent application. The disadvantage of small ratio cannot meet the needs of high-power fans

Method used

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  • Integrated semi-direct drive wind turbine drive chain and its gear box
  • Integrated semi-direct drive wind turbine drive chain and its gear box

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Embodiment Construction

[0043] A kind of integrated semi-direct drive wind power generator transmission chain of the present embodiment, such as figure 1 As shown, there is a front case 6, a rear case 14, a main shaft 5, and a planetary carrier 10. The planetary carrier 10 is arranged between the front case 6 and the rear case 14, and the planetary carrier 10 is provided with a And the torque arm 12 outside the rear box 14; the main shaft 5 includes the main shaft upwind end 5-1, the main shaft downwind end thin diameter part 5-2 and the main shaft downwind end thick diameter part 5-3;

[0044] The upwind end of the main shaft 5-1 is supported on the inner hole of the front box body 6 through the upwind bearing 2 of the main shaft; The end thick diameter part 5-3 is fixedly connected with the inner ring gear 7, optionally, the inner ring gear 7 and the main shaft 5 are fixedly connected by welding or bolts;

[0045] The inner ring gear 7 meshes with at least three intermediate gears 8 installed on t...

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Abstract

The invention provides an integrated semi-direct drive wind generator transmission chain and a gearbox for the same. The gearbox comprises a front box body (6), a rear box body (14), a spindle (5) and a planetary carrier (10), a large-diameter portion (5-3) of a downwind end of the spindle is fixedly connected with an inner gear ring (7), the inner gear ring (7) is engaged with at least three idle gears (8) mounted on the planetary carrier (10), the inner gear ring (7), the idle gears (8) and a first planetary gear form a primary fixed shaft transmission pair, a portion of each planetary gear shaft (13) extending out of the planetary carrier (10) is connected with a secondary planetary gear (15), the secondary planetary gear (15) is positioned in a cavity formed by the planetary carrier (10) and the rear box body (14) and engaged with the same sun gear (17), and the secondary planetary gear (15) and the sun gear (17) form a secondary fixed shaft transmission pair. The gearbox has the advantages of integration, light weight, short axial length, convenience in disassembly and assembly and the like.

Description

technical field [0001] The invention belongs to the technical field of wind power generators, and in particular relates to an integrated semi-direct drive wind power generator transmission chain and a gear box used therefor. Background technique [0002] The structure of the semi-direct drive wind turbine is to increase the speed of the wind rotor to 25 to 40 times through the gearbox and then input it to the permanent magnet generator. In essence, the direct drive wind turbine is equipped with a gearbox. The semi-direct drive wind turbine increases the speed input from the hub by about 25 to 40 times through gear transmission. Compared with the direct drive wind turbine, its size and weight can be greatly reduced. Therefore, the semi-direct drive wind turbine not only has direct drive wind turbines, but is easy to realize low-voltage ride-through, and there is no high-speed output shaft that is prone to failure, and the motor does not have failure points such as brushes and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H1/28F16H57/08F16H57/023F03D15/10
CPCF03D15/00F16H57/023F16H57/08Y02E10/72
Inventor 陆群峰张保松靳国忠
Owner CRRC QISHUYAN INSTITUTE CO LTD
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