Transmission structure for wind driven generator

A wind turbine and transmission structure technology, applied to wind turbine components, wind engines, wind power generation, etc., can solve the problems of frequent maintenance and even replacement of the transmission structure, failure to reach the designed service life, complex disassembly and assembly of the transmission structure, etc., to achieve Ease of disassembly and maintenance, reduction of bending stress, and improvement of power transmission capability

Inactive Publication Date: 2014-06-04
BEIJING BUFFALO TRANSMISSION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these several forms of arrangement did not fundamentally reduce maintenance costs
This is because, on the one hand, the design life of the transmission structure (mainly the gearbox) is 20 years, and the actual service life cannot reach the design life, which makes the maintenance and even replacement of the transmission structure very frequent
On the other hand, the disassembly and assembly of the current transmission structure is very complicated, requiring the use of special equipment, which costs a lot of human and financial resources

Method used

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  • Transmission structure for wind driven generator
  • Transmission structure for wind driven generator

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Experimental program
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Embodiment 1

[0029] Such as figure 1 As shown, the present invention proposes a wind power generator transmission structure 1000, the wind power generator includes a tower 93 and a cabin 92 arranged on the top of the tower 93; The spiral bevel gear mechanism 100 is composed of a planetary gear speed-up box 200 arranged in the tower 93; the impeller 91 of the wind power generator is connected to the input shaft of the spiral bevel gear mechanism 100, and the output shaft of the spiral bevel gear mechanism 100 is connected to the planetary gear The input shaft of speed-up box 200, the output shaft of planetary gear speed-up box 200 is connected to the rotating shaft of generator set 94; The output shaft of described spiral bevel gear mechanism 100, the input shaft and output shaft of planetary gear speed-up box 200 are coaxial set, and in the same direction as the axis of the tower 93.

[0030] From the above, the transmission structure of the wind power generator of the present invention a...

Embodiment 2

[0049] The structure and principle of this embodiment are basically the same as that of Embodiment 1, the difference is that figure 2 As shown, the first driven spiral bevel gear 102 is fixed with a first thrust plate 104, and the second driven spiral bevel gear 103 is fixed with a second thrust plate 105; The end surface of the gear 101 is provided with a corresponding annular groove 106 , and the edges of the first thrust plate 104 and the second thrust plate 105 are rotatably locked in the annular groove 106 .

[0050] The first thrust plate 104 cooperates with the annular groove 106 to offset the axial force on the first driven spiral bevel gear 102; the second thrust plate 105 cooperates with the annular groove 106 to offset the Axial force on the second driven helical bevel gear 103 ; thus, setting a thrust bearing on the corresponding rotating shaft can be omitted to reduce costs. Even if a thrust bearing is provided on a corresponding rotating shaft, it can prevent t...

Embodiment 3

[0056] The structure and principle of this embodiment are basically the same as that of Embodiment 1, the difference is that in Embodiment 1, the planetary gear speed-up box is composed of a two-stage planetary gear mechanism; and in this embodiment, the planetary The gear speed-up box is composed of a first-stage planetary gear mechanism and a first-stage fixed-axis gear train (not shown in the figure).

[0057] The planetary gear mechanism includes a ring gear, a sun gear and a planet carrier, and the planet carrier is provided with a plurality of planetary gears meshing with the ring gear and the sun gear; the planet carrier is connected to the rotating shaft of the first driven spiral bevel gear, The ring gear is connected to the rotating shaft of the second driven spiral bevel gear, and the planetary carrier and the ring gear together constitute the input end of the planetary gear gearbox; the sun gear is connected to the rotating shaft of the generator set through the fix...

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Abstract

The invention relates to a transmission structure for a wind driven generator. The transmission structure is composed of a spiral bevel gear mechanism arranged in a generator cabin and a planetary gear gearbox arranged in a tower cylinder. An impeller of the wind driven generator is connected with an input shaft of the spiral bevel gear mechanism, an output shaft of the spiral bevel gear mechanism is connected with an input shaft of the a planetary gear gearbox, and an output shaft of the a planetary gear gearbox is connected with a rotary shaft of a generator set. The output shaft of the spiral bevel gear mechanism and the input shaft of the planetary gear gearbox are arranged coaxially and are identical to the axis direction of the tower cylinder. The transmission structure is low in failure rate, high in reliability and convenient to dismount and maintain, and accordingly, the maintenance cost of the transmission structure is reduced.

Description

technical field [0001] The invention relates to a wind power generator, in particular to an easy-maintenance power split type wind power generator transmission structure. Background technique [0002] The transmission chain in the wind turbine has the functions of transmission and speed increase, and is the core part of the wind turbine. There are various structural forms of wind turbine transmission chains. From the transmission mode, they can be divided into planetary gear transmission, parallel shaft gear transmission, and hybrid transmission (that is, planetary gear and parallel shaft hybrid transmission). Hybrid transmission is currently the most widely used structure type; in the hybrid transmission structure, two-stage planetary transmission and one-stage fixed shaft are generally used for transmission and speed-up, and the entire transmission structure is arranged in the engine room above the tower. [0003] Because the fan is affected by the wind with irregular dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/02F16H1/28F16H1/32
CPCY02E10/722Y02E10/72
Inventor 王小椿
Owner BEIJING BUFFALO TRANSMISSION TECH
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