CN110185772A - Wind turbine gearbox spline Axile connection structure - Google Patents
Wind turbine gearbox spline Axile connection structure Download PDFInfo
- Publication number
- CN110185772A CN110185772A CN201910541198.7A CN201910541198A CN110185772A CN 110185772 A CN110185772 A CN 110185772A CN 201910541198 A CN201910541198 A CN 201910541198A CN 110185772 A CN110185772 A CN 110185772A
- Authority
- CN
- China
- Prior art keywords
- hollow shaft
- gear
- wind turbine
- connection structure
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of wind turbine gearbox spline Axile connection structures, comprising: gear, hollow shaft and interior interference set；Gear is formed with the gear hole with the cooperation of the outer peripheral surface of hollow shaft；Hollow shaft runs through gear hole；Hollow shaft interference is installed to gear hole；Hollow shaft is formed with hollow bore；Interior interference set is formed with central through hole；Interior interference set interference is installed in hollow bore；Hollow bore, central through hole and gear hole are coaxial；The inner wall of hollow shaft includes: the first contact surface；The outside wall surface of interior interference set includes: the second contact surface being bonded with the first contact surface.Wind turbine gearbox spline Axile connection structure of the invention, it is compact-sized, promote torque transmission capacity.
Description
Technical field
The present invention relates to a kind of wind turbine gearbox spline Axile connection structures.
Background technique
Wind turbine gearbox splined shaft mostly uses interference to link or interference+key link form at present, to realize torque
Transmitting.In view of the influence to material property and dismounting, the temperature that cooling and heat is dried has limiting value, therefore using the list of finite value
Interference connection, is difficult to realize the transmitting of large torque sometimes.And the connection of interference+key-shaped formula is used, there may be ask for assembly centering
Topic.
Summary of the invention
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of wind turbine gearbox spline Axile connection structure, leads to
It crosses newly-increased joint face to be pre-tightened, while lift structure rigidity, promotes torque transmission capacity.
In order to achieve the above objectives, the present invention uses following scheme:
A kind of wind turbine gearbox spline Axile connection structure, comprising: gear, hollow shaft and interior interference set；Gear be formed with it is hollow
The gear hole of the outer peripheral surface cooperation of axis；Hollow shaft runs through gear hole；Hollow shaft interference is installed to gear hole；Hollow shaft shape
At there is hollow bore；Interior interference set is formed with central through hole；Interior interference set interference is installed in hollow bore；Hollow bore, in
Heart through-hole and gear hole are coaxial；The inner wall of hollow shaft includes: the first contact surface；The outside wall surface of interior interference set includes: and the
Second contact surface of one contact surface fitting.
Further, in the axial direction of gear, the length of fit of interior interference set and hollow shaft is greater than gear and hollow shaft
Length of fit.
Further, interior interference set is at least partially disposed in gear hole；In the axial direction of gear, interior interference set is located at tooth
The ratio between the length of fit for taking turns length and gear and hollow shaft in through-hole is more than or equal to 0.8 and is less than or equal to 1.
Further, interior interference set runs through gear hole.
Further, the first contact surface and the second contact surface are cylindrical surface.
Further, one end of interior interference set, which is equipped with, contacts the interior interference set of restriction with the end face of hollow shaft relative to hollow shaft
Position positioning ring.
Further, the ratio of the wall thickness of hollow shaft and the maximum outside diameter of hollow shaft is greater than 0 and is less than or equal to 0.2；
The ratio of the sum of wall thickness of hollow shaft and interior interference set and the maximum outside diameter of hollow shaft is greater than 0 and is less than or equal to 0.3.
Further, the first contact surface and the second contact surface are circular conical surface.
Further, the wall thickness of hollow shaft and the maximum outside diameter ratio of hollow shaft are greater than 0 and are less than or equal to 0.2.
The invention has the beneficial effects that wind turbine gearbox spline Axile connection structure, compact-sized, pass through interference in being arranged
Set, a newly-increased joint face are pre-tightened, and while lift structure rigidity, promote torque transmission capacity.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of wind turbine gearbox spline Axile connection structure as embodiment of the invention；
Fig. 2 is a kind of schematic diagram of wind turbine gearbox spline Axile connection structure as another embodiment of the present invention.
Wind turbine gearbox spline Axile connection structure (10,10a), gear (1,1a), hollow shaft (2,2a), interior interference set (3,
3a), central through hole (31,31a).
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As the first embodiment of the present invention, as shown in Figure 1, a kind of wind turbine gearbox spline Axile connection structure 10, comprising:
Gear 1, hollow shaft 2 and interior interference set 3.
Gear 1 is formed with the gear hole with the cooperation of the outer peripheral surface of hollow shaft 2.Hollow shaft 2 runs through gear hole.Hollow shaft
2 interference are installed to gear hole, realize the fixation of hollow shaft 2 and gear 1.Specifically, being adopted when being installed to gear 1
With heat treatment, the expansion of gear 1 keeps gear hole just big.Volume contraction is made using liquid nitrogen cooling to hollow shaft 2, facilitating will be hollow
Axis 2 is inserted into gear hole, realizes that the interference of the two is installed after restoring nature.
Hollow shaft 2 is formed with hollow bore.Interior interference set 3 is formed with central through hole 31.Interior interference covers 3 interference and is installed on sky
In heart through-hole.Hollow bore, central through hole 31 and gear hole are coaxial.
The inner wall of hollow shaft 2 includes: the first contact surface.The outside wall surface of interior interference set 3 includes: to be bonded with the first contact surface
The second contact surface.Specifically, interior interference set 3 and hollow shaft 2 realize elastic conjunction.Tooth is improved by interference set 3 in increasing
The stability of wheel 1 and 2 interference of hollow shaft installation, improves torque transmission capacity.
As a preferred embodiment, the first contact surface and the second contact surface are cylindrical surface.One end of interior interference set 3
3 positioning ring relative to the position of hollow shaft 2 is covered equipped with interference in restriction is contacted with the end face of hollow shaft 2.
As a kind of specific embodiment, in the axial direction of gear 1, the length of fit of interior interference set 3 and hollow shaft 2 is big
In the length of fit of gear 1 and hollow shaft 2.Interior interference set 3 is at least partially disposed in gear hole.It is interior in the axial direction of gear 1
Interference set 3 is located at the ratio between length of fit of length and gear 1 and hollow shaft 2 in gear hole and is more than or equal to 0.8 and is less than etc.
In 1.More specifically, interior interference set 3 runs through gear hole.
The ratio of the maximum outside diameter of the wall thickness and hollow shaft of hollow shaft 2 is greater than 0 and is less than or equal to 0.2.2 He of hollow shaft
The ratio of the sum of wall thickness of interior interference set 3 and the maximum outside diameter of hollow shaft is greater than 0 and is less than or equal to 0.3.
Compared to traditional wind turbine gearbox spline Axile connection structure, wind turbine gearbox spline Axile connection structure 10 can be reduced
The thickness of hollow shaft 2 sets the part that interior interference set 3 and hollow shaft 2 are overlapped to the thickness of the splined shaft of transmission, it is ensured that
The reliability of connection.The thickness for reducing hollow shaft 2 saves material, reduces weight.
As the second embodiment of the present invention, as shown in Fig. 2, a kind of wind turbine gearbox spline Axile connection structure 10a, packet
It includes: gear 1a, hollow shaft 2a and interior interference set 3a.
Gear 1a is formed with the gear hole with the cooperation of the outer peripheral surface of hollow shaft 2a.Hollow shaft 2a runs through gear hole.It is empty
Mandrel 2a interference is installed to gear hole, realizes the fixation of hollow shaft 2a and gear 1a.Specifically, when being installed, it is right
Gear 1a keeps gear hole just big using heat treatment, gear 1a expansion.Volume contraction is made using liquid nitrogen cooling to hollow shaft 2a,
Facilitate and hollow shaft 2a is inserted into gear hole, realizes that the interference of the two is installed after restoring nature.
Hollow shaft 2a is formed with hollow bore.Interior interference set 3a is formed with central through hole 31.Interior interference set 3a interference installation
In in hollow bore.Hollow bore, central through hole 31 and gear hole are coaxial.
The inner wall of hollow shaft 2a includes: the first contact surface.The outside wall surface of interior interference set 3a includes: and first contacts face paste
The second contact surface closed.Specifically, interior interference set 3a and hollow shaft 2a realizes elastic conjunction.3a is covered by interference in increasing to mention
The stability of high gear 1a and hollow shaft 2a interference installation, improve torque transmission capacity.
As a kind of specific embodiment, the first contact surface and the second contact surface are circular conical surface.
As a kind of specific embodiment, in the axial direction of gear 1a, the cooperation of interior interference set 3a and hollow shaft 2a is long
Degree is greater than the length of fit of gear 1a and hollow shaft 2a.Interior interference set 3a is at least partially disposed in gear hole.Gear 1a's
In axial direction, interior interference set 3a is located at the ratio between length in gear hole and the length of fit of gear 1a and hollow shaft 2a and is more than or equal to
0.8 and be less than or equal to 1.
The ratio of the maximum outside diameter of the wall thickness and hollow shaft 2a of hollow shaft 2 is greater than 0 and is less than or equal to 0.2.Hollow shaft 2
Wall thickness it is consistent with traditional hollow shaft wall thickness.In other words, processing forms the conical surface in the inner hole of one end of traditional hollow shaft
That is the first contact surface.Then interference set 3a constitutes cone match in installing.The improvement to existing connection structure can be fast implemented,
Increase the torque transmission capacity of existing connection structure.Improving cost is low.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (9)
1. a kind of wind turbine gearbox spline Axile connection structure characterized by comprising gear, hollow shaft and interior interference set；It is described
Gear is formed with the gear hole with the cooperation of the outer peripheral surface of the hollow shaft；The hollow shaft runs through the gear hole；It is described
Hollow shaft interference is installed to the gear hole；The hollow shaft is formed with hollow bore；The interior interference set is formed with center
Through-hole；The interior interference set interference is installed in the hollow bore；The hollow bore, the central through hole and the gear
Through-hole is coaxial；The inner wall of the hollow shaft includes: the first contact surface；The outside wall surface of the interior interference set includes: and described the
Second contact surface of one contact surface fitting.
2. wind turbine gearbox spline Axile connection structure according to claim 1, which is characterized in that
In the axial direction of the gear, the length of fit of the interior interference set and the hollow shaft is greater than the gear and the sky
The length of fit of mandrel.
3. wind turbine gearbox spline Axile connection structure according to claim 2, which is characterized in that
The interior interference set is at least partially disposed in the gear hole；In the axial direction of the gear, the interior interference covers position
The ratio between length of fit of length in the gear hole and the gear and the hollow shaft is more than or equal to 0.8 and is less than etc.
In 1.
4. wind turbine gearbox spline Axile connection structure according to claim 2, which is characterized in that
The interior interference set runs through the gear hole.
5. wind turbine gearbox spline Axile connection structure according to claim 1, which is characterized in that
First contact surface and second contact surface are cylindrical surface.
6. wind turbine gearbox spline Axile connection structure according to claim 5, which is characterized in that
One end of the interior interference set, which is equipped with to contact with the end face of the hollow shaft, limits the interior interference set relative to the sky
The positioning ring of the position of mandrel.
7. wind turbine gearbox spline Axile connection structure according to claim 5, which is characterized in that
The ratio of the wall thickness of the hollow shaft and the maximum outside diameter of the hollow shaft is greater than 0 and is less than or equal to 0.2；
The ratio of the sum of wall thickness of the hollow shaft and interior interference set and the maximum outside diameter of the hollow shaft be greater than 0 and
Less than or equal to 0.3.
8. wind turbine gearbox spline Axile connection structure according to claim 1, which is characterized in that
First contact surface and second contact surface are circular conical surface.
9. wind turbine gearbox spline Axile connection structure according to claim 8, which is characterized in that
The ratio of the wall thickness of the hollow shaft and the maximum outside diameter of the hollow shaft is greater than 0 and is less than or equal to 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541198.7A CN110185772A (en) | 2019-06-21 | 2019-06-21 | Wind turbine gearbox spline Axile connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910541198.7A CN110185772A (en) | 2019-06-21 | 2019-06-21 | Wind turbine gearbox spline Axile connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185772A true CN110185772A (en) | 2019-08-30 |
Family
ID=67722729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910541198.7A Pending CN110185772A (en) | 2019-06-21 | 2019-06-21 | Wind turbine gearbox spline Axile connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185772A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469655A (en) * | 2019-09-10 | 2019-11-19 | 南京高速齿轮制造有限公司 | A kind of toggle of wind turbine gearbox and pin shaft connection structure and wind turbine gearbox |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325963A1 (en) * | 1993-08-03 | 1995-02-09 | Loehr & Bromkamp Gmbh | Crash-optimised shaft connection |
| US20040096271A1 (en) * | 2002-11-19 | 2004-05-20 | Rainer Peter | Quill shaft tensioning coupling |
| DE102006028430A1 (en) * | 2006-06-19 | 2007-12-20 | Paatz Viernau Gmbh | Connection e.g. shaft hub connection, has pressing produced between two bodies e.g. shaft and hub, in area of connection, where surface of one of bodies is provided with manganese phosphate layer in area of connection |
| CN202001221U (en) * | 2010-12-30 | 2011-10-05 | 保定天威集团有限公司 | Connecting structure of main shaft and gearbox of wind generating set |
| CN102405362A (en) * | 2009-02-21 | 2012-04-04 | 罗伯特·博世有限公司 | Gear transmission having a gear wheel arranged on a hollow shaft and wind power plant |
| CN203685896U (en) * | 2013-12-25 | 2014-07-02 | 中国重型机械研究院股份公司 | Transmission connection mechanism matched with speed reducer for use |
| CN105313950A (en) * | 2014-07-09 | 2016-02-10 | 株式会社捷太格特 | Electric power steering system |
| CN210423654U (en) * | 2019-06-21 | 2020-04-28 | 南京高速齿轮制造有限公司 | Wind-powered electricity generation gear box spline shaft connection structure |
-
2019
- 2019-06-21 CN CN201910541198.7A patent/CN110185772A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4325963A1 (en) * | 1993-08-03 | 1995-02-09 | Loehr & Bromkamp Gmbh | Crash-optimised shaft connection |
| US20040096271A1 (en) * | 2002-11-19 | 2004-05-20 | Rainer Peter | Quill shaft tensioning coupling |
| DE102006028430A1 (en) * | 2006-06-19 | 2007-12-20 | Paatz Viernau Gmbh | Connection e.g. shaft hub connection, has pressing produced between two bodies e.g. shaft and hub, in area of connection, where surface of one of bodies is provided with manganese phosphate layer in area of connection |
| CN102405362A (en) * | 2009-02-21 | 2012-04-04 | 罗伯特·博世有限公司 | Gear transmission having a gear wheel arranged on a hollow shaft and wind power plant |
| CN202001221U (en) * | 2010-12-30 | 2011-10-05 | 保定天威集团有限公司 | Connecting structure of main shaft and gearbox of wind generating set |
| CN203685896U (en) * | 2013-12-25 | 2014-07-02 | 中国重型机械研究院股份公司 | Transmission connection mechanism matched with speed reducer for use |
| CN105313950A (en) * | 2014-07-09 | 2016-02-10 | 株式会社捷太格特 | Electric power steering system |
| CN210423654U (en) * | 2019-06-21 | 2020-04-28 | 南京高速齿轮制造有限公司 | Wind-powered electricity generation gear box spline shaft connection structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469655A (en) * | 2019-09-10 | 2019-11-19 | 南京高速齿轮制造有限公司 | A kind of toggle of wind turbine gearbox and pin shaft connection structure and wind turbine gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190923 Address after: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant after: Nanjing High Speed Gear Manufacturing Co., Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant before: Nanjing High Speed Gear Manufacturing Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200509 Address after: 211103 No.30, Houjiao Road, gaoxinyuan, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Applicant before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |
|
| TA01 | Transfer of patent application right |