CN201714821U - Flexible shaft assembly of planetary gear - Google Patents
Flexible shaft assembly of planetary gear Download PDFInfo
- Publication number
- CN201714821U CN201714821U CN2010202533277U CN201020253327U CN201714821U CN 201714821 U CN201714821 U CN 201714821U CN 2010202533277 U CN2010202533277 U CN 2010202533277U CN 201020253327 U CN201020253327 U CN 201020253327U CN 201714821 U CN201714821 U CN 201714821U
- Authority
- CN
- China
- Prior art keywords
- planetary
- shaft
- planet
- gear
- main shaft
- 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.)
- Expired - Fee Related
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels
- F16H1/2836—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet-wheels by allowing limited movement of the planets relative to the planet carrier or by using free floating planets
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The utility model discloses a flexible shaft assembly of a planetary gear. The flexible shaft assembly comprises a planetary main shaft, and a planetary central shaft in interference fit with a small hole of a central stepped through hole at one end of the planetary main shaft, and is characterized in that the inner wall of the left part of a planetary buffering shaft is in interference fit with the excircle surface of the left part of the planetary central shaft; the right part of the planetary buffering shaft stretches into a large hole of the central stepped through hole of the planetary main shaft; and the excircle surface at the left part of a planetary buffering shaft sleeve is in interference fit with a planetary carrier body. The planetary central shaft deforms in the shape of an S under the action of a force couple of the planetary main shaft, so that the planetary main shaft always remains horizontal in the transmission process, and the meshing of the planetary gear, an annular gear and a sun gear is uniformly loaded in the direction of the gear teeth to improve the condition of gear meshing; moreover, the influence of the system transmission caused by processing and assembling errors of parts is reduced, the accurate and smooth meshing of the planetary gear train is guaranteed, and the shock and load resistant capabilities are enhanced.
Description
Technical field
The utility model patent relates to the wind power equipment parts, is specifically related to a kind of planetary pinion flexible shaft assembly that is used for the gear-box of wind power equipment.
Background technique
In the working procedure of wind power equipment, because the variation at any time of wind-force, its gearbox drive chain is bearing impact loading complicated and changeable for a long time, usually the effect of bearing low-speed heave-load as the planet gear transmission system of gear-box first order transmission; Owing to process or assembling, the small error that planet gear transmission system exists can cause the stand under load inequality of each planet wheel in the running in addition, for the epicyclic transmission mechanism that surpasses 3 planet wheels, needs coefficient of considering that its inequality is carried in the regulation and stipulation design.Owing to impulsive load and uneven influence of carrying, cause the mechanical early failue of planet gear transmission system, can take enormous economic loss to usually.The stiff shaft structure that generally adopts in the planet gear transmission system can not be dissolved impulsive load effectively, improve the problem of all carrying poor performance at present.
Summary of the invention
The purpose of this utility model provides a kind of planetary pinion flexible shaft assembly, it can improve the performance of gearbox drive system resistance to shock loads, promotes the reliability of whole Transmitted chains, reduces the gearbox fault rate, reduce the maintenance and repair cost, prolong gear-box working life.
A kind of planetary pinion flexible shaft assembly described in the utility model, comprise the planet main shaft, with the planet central shaft of the aperture interference fit of the center ladder hole of planet main shaft one end, it is characterized in that:
The periphery interference fit of the left part inwall of one planet buffer shaft and planet central shaft left part, right part stretch in the macropore of center ladder hole of planet main shaft; The periphery of planet buffer shaft left part and carrier main-body interference fit.
Described a kind of planetary pinion flexible shaft assembly, the other end of its described planet main shaft is connected by bearing and planetary pinion.
The working principle of this planet gear flexible shaft assembly is: when carrier main-body was rotated, active force was delivered on the planet main shaft by the planet central shaft, finally drove planetary pinion along the ring gear engagement driving.Under the effect of power, micro-deformation can take place in the planet central shaft, by the elasticity adjustment, the load distribution of each planet wheel in the whole planetary transmission system is reached unanimity, and plays the purpose that the improvement system all carries.When the time spent of doing that is subjected to severe impact load, the distortion of planet central shaft can be played certain buffer function, reduce the size of the dynamic impulsion load that whole Transmitted chains system is subjected to, thereby promoted the ability of system's resistance to shock loads, also improved the safety coefficient of each parts of system simultaneously.
The beneficial effects of the utility model: because the planet central shaft is the serpentine distortion under the force couple role of planet main shaft, make the planet main shaft in transmission process, remain level, and make being engaged on of planetary pinion and ring gear, sun gear along the even stand under load of gear teeth direction, thereby improved the gear engagement situation, also improved simultaneously the stand under load situation of planetary gear bearing, significant for the working life that prolongs planetary gear bearing; Reduced the influence of each part processing, assembly error to system's transmission, guaranteed the planetary gear train engagement accurately steadily, planetary gear train power is evenly shunted, strengthened the ability of resistance to shock loads.
Description of drawings
Fig. 1 is the structural representation of model utility.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
A kind of planetary pinion flexible shaft assembly referring to shown in Figure 1 comprises planet main shaft 4, planet central shaft 3; The periphery interference fit of the left part inwall of planet buffer shaft 2 and planet central shaft 3 left parts, right part stretch in the macropore of center ladder hole of planet main shaft; The periphery of planet buffer shaft 2 left parts and carrier main-body 1 interference fit; The other end of planet main shaft 4 is connected by bearing and planetary pinion.
The planet central shaft links together by interference fit and planet buffer shaft, planet main shaft, is the main deformation component of this assembly; The endoporus of planet buffer shaft cooperates with the planet central shaft, external diameter and carrier main-body interference fit, and the area of contact of increase and carrier main-body is to reduce contact stress.
Claims (2)
1. planetary pinion flexible shaft assembly, comprise planet main shaft (4), with the planet central shaft (3) of the aperture interference fit of the center ladder hole of planet main shaft one end, it is characterized in that:
The periphery interference fit of the left part inwall of one planet buffer shaft (2) and planet central shaft (3) left part, right part stretch in the macropore of center ladder hole of planet main shaft; The periphery of planet buffer shaft (2) left part and carrier main-body (1) interference fit.
2. a kind of planetary pinion flexible shaft assembly according to claim 1, it is characterized in that: the other end of described planet main shaft (4) is connected by bearing and planetary pinion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202533277U CN201714821U (en) | 2010-07-09 | 2010-07-09 | Flexible shaft assembly of planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202533277U CN201714821U (en) | 2010-07-09 | 2010-07-09 | Flexible shaft assembly of planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714821U true CN201714821U (en) | 2011-01-19 |
Family
ID=43460817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202533277U Expired - Fee Related CN201714821U (en) | 2010-07-09 | 2010-07-09 | Flexible shaft assembly of planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714821U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20121712A1 (en) * | 2012-10-11 | 2014-04-12 | Danieli Off Mecc | PLANETARY REDUCER |
| CN106321798A (en) * | 2016-09-30 | 2017-01-11 | 杭州前进齿轮箱集团股份有限公司 | Flexible shaft structure for offshore wind power gear box |
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
-
2010
- 2010-07-09 CN CN2010202533277U patent/CN201714821U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20121712A1 (en) * | 2012-10-11 | 2014-04-12 | Danieli Off Mecc | PLANETARY REDUCER |
| WO2014057468A1 (en) * | 2012-10-11 | 2014-04-17 | Danieli & C. Officine Meccaniche S.P.A. | Planetary gearing |
| CN104769314A (en) * | 2012-10-11 | 2015-07-08 | 丹尼尔和科菲森梅克尼齐有限公司 | Planetary gearing |
| RU2600173C1 (en) * | 2012-10-11 | 2016-10-20 | ДАНИЕЛИ И КО ОФФИЧИНЕ МЕККАНИКЕ С.п.А. | Planetary gear |
| US9657812B2 (en) | 2012-10-11 | 2017-05-23 | Danieli & C. Officine Meccaniche S.P.A. | Planetary gearing |
| CN104769314B (en) * | 2012-10-11 | 2017-12-01 | 丹尼尔和科菲森梅克尼齐有限公司 | Epicyclic gearing |
| CN106321798A (en) * | 2016-09-30 | 2017-01-11 | 杭州前进齿轮箱集团股份有限公司 | Flexible shaft structure for offshore wind power gear box |
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20170709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |