CN106321798A - Flexible shaft structure for offshore wind power gear box - Google Patents
Flexible shaft structure for offshore wind power gear box Download PDFInfo
- Publication number
- CN106321798A CN106321798A CN201610867693.3A CN201610867693A CN106321798A CN 106321798 A CN106321798 A CN 106321798A CN 201610867693 A CN201610867693 A CN 201610867693A CN 106321798 A CN106321798 A CN 106321798A
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- CN
- China
- Prior art keywords
- planet
- gear
- flexible
- shaft structure
- offshore wind
- 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
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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
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a flexible shaft structure for an offshore wind power gear box. The flexible shaft structure is mainly composed of a flexible pin, an elastic check ring, a flexible pin sleeve, a planet carrier, a planet gear, a bearing, a locking nut and a planet shaft. The flexible shaft structure is characterized in that the flexible pin sleeve is mounted into a hole of the planet carrier; the flexible pin is mounted in the planet shaft; the planet gear capable of being engaged with a sun gear and an inner gear ring is mounted on the planet shaft through the bearing; the flexible pin is fixed into the flexible pin sleeve through the elastic check ring, so that a cantilever structure is formed; the flexible pin sleeve and the planet carrier are in interference-fit connection, and overload deformation of the flexible pin is limited through contact with the planet shaft at the position A of the cylindrical surface; and the planet shaft is provided with the locking nut, and the bearing is fixed to the planet shaft through the locking nut. The flexible shaft structure has the beneficial effects that power density of the gear box can be improved; the service life of the gear box is prolonged; and the requirements that the offshore wind power gear box is small in size, light in weight and high in reliability are met.
Description
Technical field
The present invention relates to a kind of flexible shaft structure in Oversea wind power generation gear-box, belong to a kind of power and pass
Dynamic structure.
Prior art
Along with the rise of offshore wind farm, the wind power generating set power of installation incrementally increases, and proposes wind generating technology
One new height, it is desirable to the volume of wind power generating set is little, low cost, reliability high.And offshore wind farm gear-box is wind
Power generator assembles an important mechanical part of set, and high power density to be had to gear-box and lightweight demand also become more
Come the most urgent.
On the one hand, traditional wind turbine gearbox is made up of secondary planetary gear transmission and one-level parallel-axes gears transmission, its
Middle planetary stage typically has 3～4 planetary gears, and planet axis and planet carrier are to rigidly fix, and forms 2 supporting constructions, along with gear
The increase of case power, the volume and weight of gear-box is the biggest, it is impossible to meet the demand for development of offshore wind farm gear-box.Therefore,
We need to study a kind of many planetary gear transmission mechanisms, simultaneously need to use flexible shaft structure to solve many Planetary Gear Transmissions
All carry problem.On the other hand, existing flexible shaft structure includes: compliant pin 1, planet axis 2, nut 3, locking nut 7, planetary gear
5, planet carrier 6, bearing 4, as shown in Figure 1.This flexible shaft structure is used to carry in the limit bearing this offshore wind farm gear-box
There will be compliant pin deformation when the deflection to compliant pin 1 does not limit or uses conical ring limit for tonnage during lotus and can produce a kind of axial
Power, this unconfined deformation or axial force can increase the damage ratio of part in flexible shaft structure, bearing, reduce gear-box
Life-span.
Summary of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, and provide one can preferably solve many planets tooth
In wheel all loads of transmission, existing flexible shaft structure, compliant pin produces the problems such as axial force when unrestrictedly deforming or deform, and can improve
Gear-box capacity density, increases gearbox life, meets that offshore wind farm gear-box volume is little, lightweight, the high spy of reliability
The flexible shaft structure for offshore wind farm gear-box of point.
It is an object of the invention to complete by following technical solution, a kind of flexible shaft for offshore wind farm gear-box
Structure, it is mainly by compliant pin, circlip, flexible guide, planet carrier, planetary gear, bearing, locking nut, planet axis group
Become, it is characterised in that described compliant pin is set with in planet carrier hole, and compliant pin is arranged in a planet axis, logical in planet axis
Crossing bearing and be provided with the planetary gear that can engage with sun gear and ring gear, described compliant pin circlip is fixed on compliant pin
Set is interior and forms a cantilever design.
As preferably: described flexible guide is connected with planet carrier interference, and by with planet axis connecing at the A of the face of cylinder
Touch the overload deformation limiting compliant pin；It is configured with locking nut in described planet axis, and bearing is fixed by described locking nut
In described planet axis.
The present invention preferably solves that many planet gear transmissions all carry, compliant pin unrestrictedly deforms or becomes in existing flexible shaft structure
Produce the problems such as axial force during shape, gear-box capacity density can be improved, increase gearbox life, meet offshore wind farm gear-box
Volume is little, lightweight, reliability high.
Use many epicyclic gearboxes of this flexible shaft structure, on the one hand can be substantially reduced the dislocation of planetary gear engagement
Amount, is automatically adjusted by compliant pin and makes each planetary gear bearing capacity identical；On the other hand compliant pin is limited by flexible guide
Overload deformation, and do not produce axial force, reduce part, the damage ratio of bearing in flexible shaft structure；Above-mentioned functions improves
Life-span of offshore wind farm gear-box.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 2, and one of the present invention is used for offshore wind farm gear
The flexible shaft structure of case, it is mainly by compliant pin 11, circlip 12, flexible guide 13, planet carrier 14, planetary gear 15, axle
Hold 16, locking nut 17, planet axis 18 form, and described flexible guide 13 loads in planet carrier 14 hole, and compliant pin 11 is arranged on
In one planet axis 18, planet axis 18 is provided with, by bearing 16, the planetary gear 15 that can engage with sun gear and ring gear,
In described compliant pin 11 is fixed on flexible guide 13 with circlip 12 and form a cantilever design.
Shown in figure, described flexible guide 13 is connected with planet carrier 14 interference, and by with planet axis 18 at face of cylinder A
The contact at place limits the overload deformation of compliant pin 11；Locking nut 17, and described locking screw it is configured with in described planet axis 18
Bearing 16 is fixed in described planet axis 18 by female 17.
Described by compliant pin 11, circlip 12, flexible guide 13, planet carrier 14, planetary gear 15, bearing 16, lock
The flexible shaft structure of jack panel 17, planet axis 18 composition, each planet tooth when can make in multirow star wheel gear box planetary gear engagement
Wheel bearing capacity is identical, improves the life-span of offshore wind farm gear-box.
In a particular embodiment, use flexible shaft structure, as in figure 2 it is shown, when planetary gear engages with ring gear, sun gear
Time produce the force of periphery, make compliant pin be deformed by bearing, planet axis stress, produce different deformation according to the size of power
Amount, thus be automatically adjusted and make the bearing capacity of each planetary gear identical, therefore also ensure that the life-span of offshore wind farm gear-box.Work as tooth
When roller box bears overload, planetary engagement force also increases, and causes the deformation that compliant pin is bigger, makes flexible guide and planet axis
Gap at the A of the face of cylinder is decreased to contact, thus is limited the deformation of compliant pin by flexible guide, it is ensured that flexible shaft structure
Middle part, the life-span of bearing.
Claims (2)
1., for a flexible shaft structure for offshore wind farm gear-box, it is mainly by compliant pin (11), circlip (12), flexibility
Guide (13), planet carrier (14), planetary gear (15), bearing (16), locking nut (17), planet axis (18) form, its feature
Being that described flexible guide (13) loads in planet carrier (14) hole, compliant pin (11) is arranged in a planet axis (18), is expert at
The planetary gear (15) that can engage with sun gear and ring gear, described compliant pin are installed by bearing (16) on star axle (18)
(11) in being fixed on flexible guide (13) with circlip (12) and form a cantilever design.
Flexible shaft structure for offshore wind farm gear-box the most according to claim 1, it is characterised in that described flexibility
Guide (13) is connected with planet carrier (14) interference, and by limiting compliant pin with planet axis (18) contacting at the A of the face of cylinder
(11) overload deformation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867693.3A CN106321798A (en) | 2016-09-30 | 2016-09-30 | Flexible shaft structure for offshore wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610867693.3A CN106321798A (en) | 2016-09-30 | 2016-09-30 | Flexible shaft structure for offshore wind power gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106321798A true CN106321798A (en) | 2017-01-11 |
Family
ID=57821019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610867693.3A Pending CN106321798A (en) | 2016-09-30 | 2016-09-30 | Flexible shaft structure for offshore wind power gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106321798A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057561A (en) * | 2019-04-22 | 2019-07-26 | 明阳智慧能源集团股份公司 | A kind of multi-functional big load of wind turbine gearbox gear flexible pin shaft is test bed |
| 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 |
| CN110848336A (en) * | 2019-12-02 | 2020-02-28 | 南京创力传动科技有限公司 | Uniform load device with flexible pin shaft and planetary gear |
| CN112989662A (en) * | 2021-03-18 | 2021-06-18 | 湖南南方宇航高精传动有限公司 | Finite element calculation method for flexible pin structure of wind power gear box |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201714821U (en) * | 2010-07-09 | 2011-01-19 | 重庆望江工业有限公司 | Flexible shaft assembly of planetary gear |
| CN102518787A (en) * | 2011-12-13 | 2012-06-27 | 哈尔滨东安发动机（集团）有限公司 | Planetary transmission structure of wind power gear box |
| DE102011075908A1 (en) * | 2011-05-16 | 2012-11-22 | Zf Friedrichshafen Ag | Sun gear for planetary gear, has bending element, which is designed to be flexible, where external toothing is partially tilted from longitudinal axis of shaft |
| CN203258045U (en) * | 2013-05-03 | 2013-10-30 | 杭州前进齿轮箱集团股份有限公司 | Flexible planetary pin shaft uniform loading device |
| CN206175636U (en) * | 2016-09-30 | 2017-05-17 | 杭州前进齿轮箱集团股份有限公司 | A flexible shaft structure for marine wind power gear box |
-
2016
- 2016-09-30 CN CN201610867693.3A patent/CN106321798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201714821U (en) * | 2010-07-09 | 2011-01-19 | 重庆望江工业有限公司 | Flexible shaft assembly of planetary gear |
| DE102011075908A1 (en) * | 2011-05-16 | 2012-11-22 | Zf Friedrichshafen Ag | Sun gear for planetary gear, has bending element, which is designed to be flexible, where external toothing is partially tilted from longitudinal axis of shaft |
| CN102518787A (en) * | 2011-12-13 | 2012-06-27 | 哈尔滨东安发动机（集团）有限公司 | Planetary transmission structure of wind power gear box |
| CN203258045U (en) * | 2013-05-03 | 2013-10-30 | 杭州前进齿轮箱集团股份有限公司 | Flexible planetary pin shaft uniform loading device |
| CN206175636U (en) * | 2016-09-30 | 2017-05-17 | 杭州前进齿轮箱集团股份有限公司 | A flexible shaft structure for marine wind power gear box |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057561A (en) * | 2019-04-22 | 2019-07-26 | 明阳智慧能源集团股份公司 | A kind of multi-functional big load of wind turbine gearbox gear flexible pin shaft is test bed |
| CN110057561B (en) * | 2019-04-22 | 2024-03-26 | 明阳智慧能源集团股份公司 | Multifunctional large-load test bench for flexible pin shaft of gear of wind power gear box |
| 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 |
| CN110848336A (en) * | 2019-12-02 | 2020-02-28 | 南京创力传动科技有限公司 | Uniform load device with flexible pin shaft and planetary gear |
| CN110848336B (en) * | 2019-12-02 | 2024-01-02 | 南京创力传动科技有限公司 | Take flexible round pin axle and planetary gear to evenly carry device |
| CN112989662A (en) * | 2021-03-18 | 2021-06-18 | 湖南南方宇航高精传动有限公司 | Finite element calculation method for flexible pin structure of wind power gear box |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |