CN204372116U - A kind of sun gear axial positioning mechanism of wind turbine gearbox - Google Patents
A kind of sun gear axial positioning mechanism of wind turbine gearbox Download PDFInfo
- Publication number
- CN204372116U CN204372116U CN201420820057.1U CN201420820057U CN204372116U CN 204372116 U CN204372116 U CN 204372116U CN 201420820057 U CN201420820057 U CN 201420820057U CN 204372116 U CN204372116 U CN 204372116U
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- sun gear
- block
- axle head
- arc shaped
- splined shaft
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Abstract
The utility model relates to a kind of sun gear axial positioning mechanism of wind turbine gearbox, and comprise sun wheel shaft, splined shaft and sun gear axle head, its main points are: have additional endoporus step in the endoporus of splined shaft; Be provided with block between the endoporus step of sun gear axle head and splined shaft, block is fixed on the endoporus step of splined shaft by screw; The surface that block and sun gear axle head touch is arc shaped surface; The end face of arc shaped surface and sun gear axle head has cambered surface carburized case and the end face carburized case of 0.5 ~ 3 millimeters thick, carburized case surface hardness is 58 ~ 63HRC.The utility model is by setting up block and endoporus step, improve the shock-resistant ability of bearing, block and sun wheel shaft end in contact face are arc shaped surface, sun wheel shaft end surfaces and arc shaped surface have the carburized case of 0.5 ~ 3 millimeters thick, the hardness and the wear resistance that improve contact surface are good, the reliability of gear-box work and Security good, decrease the maintenance cost of gear-box, extend the working life of gear-box, good economy performance.
Description
Technical field
The utility model relates to a kind of sun gear axial positioning mechanism, is specifically related to a kind of sun gear axial positioning mechanism of wind turbine gearbox.
Background technique
Gear of wind power speed-increasing gearbox, as the requisite transmitting assemblies of wind power plant, has the features such as high reliability, high efficiency, high security.The gear of wind power speed-increasing gearbox of current below 3MW generally adopts three grades of step-up drive, and be mainly divided into primary planet+two-stage parallel axis transmission and two-stage planet+one-level driving of parallel axes, sun gear is connected with next stage mechanism by spline.In planet transmission process, the sun gear with certain amount of floating engages with 3 planet wheels simultaneously, because planet wheel exists size deviation unavoidably in course of working, can not ensure that 3 planet wheels completely all carry, therefore sun gear will inevitably produce certain beat and axial float.Sun gear opposite side is fixed by flange plate, sun gear and flange plate plane contact, and sun gear end face can make flange plate cause sun gear unbalance loading because of distortion to the rigid impulse of flange plate.Thus make transmission become not steady, reduce mechanically operated reliability and efficiency.
ZL 203230795U proposes a kind of novel sun gear structure of wind turbine gearbox, the contact surface of flange plate and sun gear is changed into sphere by plane, reduce sun gear end face to the rigid impulse of flange plate, avoid, because flange plate face deformation causes sun gear unbalance loading, affecting the transmission stability of whole mechanism and the reliability of system simultaneously.Although change the surface of contact of flange plate and sun gear axle head into sphere by plane, improve the axially locating of sun gear and stressed to a certain extent, still do not solve the problem of sun gear axle head serious wear.
Summary of the invention
The purpose of this utility model is the shortcoming that will overcome above-mentioned technology, provides a kind of property simple and reliable for structure good, the sun gear axial positioning mechanism of shock-resistant, wear-resisting wind turbine gearbox.
The sun gear axial positioning mechanism of wind turbine gearbox of the present utility model, comprises sun wheel shaft, splined shaft and sun gear axle head, it is characterized in that: have additional endoporus step in the endoporus of described splined shaft; Be provided with block between described sun gear axle head and the endoporus step of splined shaft, block is fixed on the endoporus step of splined shaft by screw; The surface that described block and sun gear axle head touch is arc shaped surface; Described arc shaped surface has the cambered surface carburized case of 0.5 ~ 3 millimeters thick, cambered surface carburized case surface hardness is 58 ~ 63HRC.
In order to better realize above-mentioned purpose:
The end face that described sun gear axle head and the arc shaped surface of block touch has the end face carburized case of 0.5 ~ 3 millimeters thick, end face carburized case surface hardness is 58 ~ 63HRC.
The utility model is by setting up block and endoporus step, improve the shock-resistant ability of bearing, the surface of contact of block and sun gear axle head is arc shaped surface, the arc shaped surface of sun gear axle head end face and block has the carburized case of 0.5 ~ 3 millimeters thick, the hardness and the wear resistance that improve sun gear axle head end face and arc shaped surface contact surface are good, the reliability of gear-box work and Security good, decrease the maintenance cost of gear-box, extend the working life of gear-box, good economy performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of sun gear axial positioning mechanism of the present utility model.
Fig. 2 is the partial enlarged drawing I of Fig. 1.
In figure 1, sun wheel shaft, 2, splined shaft, 3, block, 4, endoporus step, 5, sun gear axle head, 51, end face carburized case, 6, arc shaped surface, 61, cambered surface carburized case, 7, screw.
Embodiment
The sun gear axial positioning mechanism of wind turbine gearbox of the present utility model, comprises sun wheel shaft 1, splined shaft 2 and sun gear axle head 5.Endoporus step 4 is had additional in the endoporus of splined shaft 2.Be provided with block 3 between the endoporus step 4 of sun gear axle head 5 and splined shaft 2, block 3 is fixed on the endoporus step 4 of splined shaft 2 by screw 7.The surface that block 3 and sun gear axle head 5 touch is arc shaped surface 6.The end face of arc shaped surface 6 and sun gear axle head 5 has cambered surface carburized case 61 and the end face carburized case 51 of 1 millimeters thick, cambered surface carburized case 61 and end face carburized case 51 surface hardness are 60HRC.
Claims (2)
1. a sun gear axial positioning mechanism for wind turbine gearbox, comprises sun wheel shaft (1), splined shaft (2) and sun gear axle head (5), it is characterized in that: have additional endoporus step (4) in the endoporus of described splined shaft (2); Be provided with block (3) between described sun gear axle head (5) and the endoporus step (4) of splined shaft (2), block (3) is fixed on the endoporus step (4) of splined shaft (2) by screw (7); The surface that described block (3) and sun gear axle head (5) touch is arc shaped surface (6); Described arc shaped surface (6) has the cambered surface carburized case (61) of 0.5 ~ 3 millimeters thick, and cambered surface carburized case (61) surface hardness is 58 ~ 63HRC.
2. sun gear axial positioning mechanism according to claim 1, it is characterized in that: the end face that described sun gear axle head (5) and the arc shaped surface (6) of block (3) touch has the end face carburized case (51) of 0.5 ~ 3 millimeters thick, and end face carburized case (51) surface hardness is 58 ~ 63HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820057.1U CN204372116U (en) | 2014-12-23 | 2014-12-23 | A kind of sun gear axial positioning mechanism of wind turbine gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820057.1U CN204372116U (en) | 2014-12-23 | 2014-12-23 | A kind of sun gear axial positioning mechanism of wind turbine gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372116U true CN204372116U (en) | 2015-06-03 |
Family
ID=53328338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820057.1U Active CN204372116U (en) | 2014-12-23 | 2014-12-23 | A kind of sun gear axial positioning mechanism of wind turbine gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372116U (en) |
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2014
- 2014-12-23 CN CN201420820057.1U patent/CN204372116U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151102 Address after: Dong Jia Duan high-tech park in Hunan province 412002 Zhuzhou city Lusong District Patentee after: Hunan Nanfang Aviation High Precision Transmission Co., Ltd. Address before: Dong Jia Duan High-tech Industrial Park in Hunan province Zhuzhou city Lusong District 412000 Patentee before: Zhuzhou Gaojing Transmission Technology Co., Ltd. |