CN201705592U - Yawing speed reducer for wind power generation - Google Patents
Yawing speed reducer for wind power generation Download PDFInfo
- Publication number
- CN201705592U CN201705592U CN2010201865082U CN201020186508U CN201705592U CN 201705592 U CN201705592 U CN 201705592U CN 2010201865082 U CN2010201865082 U CN 2010201865082U CN 201020186508 U CN201020186508 U CN 201020186508U CN 201705592 U CN201705592 U CN 201705592U
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- China
- Prior art keywords
- speed reducer
- input shaft
- wind
- casing
- power generating
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a yawing-driven speed reducer for wind power generation, which comprises a box body, an input shaft, a planetary gear reduction assembly which is arranged in the box body and connected with the input shaft, and an output shaft. The utility model is characterized in that: the oil seal structure of the box body is divided into two layers; wherein, the upper layer is provided with lubricating oil, the output end of the lower layer is provided with lubricating grease, the upper layer and the lower layer are separated through oil seal, and an outer oil seal is arranged at the lower end, thereby changing the previous oil seal structure with single lubricating oil but without lubricating grease, obviously improving the pressure bearing capability of the service medium and keeping the sealing performance reliable; in addition, lubricating oil and lubricating grease do not mix to influence the quality of oil and grease. The input shaft is connected with a central gear of the planetary gear reduction assembly through an involute spline, thereby changing the previous structure of the input shaft and the central gear as the whole, realizing the optimal transmission uniform load effect, reducing the manufacturing difficulty and preferably ensuring the machining and installation accuracy.
Description
Technical field
The utility model relates to a kind of speed reducer, particularly a kind of wind-power generating yaw speed reducer.
Background technique
The wind-power generating yaw speed reducer is one of significant components of wind power generating set, is the driving speed reducer of its yaw system, vertical being installed in around the generator set tower mount.Work matches with control system, when after unit determines the wind direction, needing driftage directed, be installed in the necessary electromotor energising rotation on the yawing reducer, power is imported yawing reducer, output shaft gear by yawing reducer drives the yaw system gearwheel on the tower drum flange dish of generator set pylon at last, thereby drives the whole cabin orientation of going off course, and makes impeller be in state down with the wind all the time, to make full use of wind energy, improve generating efficiency.Each system of wind-power electricity generation all requires to have very high reliability and stability, and yawing reducer is one of vitals, to the essential above-mentioned requirements that guarantees of its performance.
It is of the prior art at present because yawing reducer is vertical installation, the yawing reducer inner chamber has been full of lubricant oil, output terminal is positioned at the lower end, therefore the oil sealing of output terminal is arranged at the oil reservoir bottom, and oil sealing stirs the pressure of oil and temperature rise generation in the time of need bearing the static pressure of lubricant oil itself and speed reducer work running.Through after the use of long period, this oil sealing and output shaft progressively wear and tear because of friction causes lip, because the environment of wind power generating set wind field of living in is abominable, temperature is very low simultaneously, windy and dusty, even many salt fogs, firmly oil sealing is easily aging under this state, and the dynamics of packing tightly between lip and output shaft can progressively descend, when dropping to the pressure that bears less than above-mentioned need, oil leakage phenomenon will take place, influence the normal operation of yawing reducer, be difficult to guarantee its reliability and stability.
On the other hand, yawing reducer be generally standard N GW planetary speed reducer structure, vertical installation, the input shaft that connects with motor is positioned at the upper end, by bearing supporting, the central gear of its input end and NGW planetary reduction gear assembly is for being fixed into the unitary whole structure, between the two for being rigidly connected, cause the accuracy of manufacturing of its input shaft part to be had relatively high expectations, difficulty of processing is bigger; And this rigid construction makes the effect of load balancing mechanism of speed reducer bad, is easy to generate vibration, and noise is big, temperature rise aggravation, adverse consequences such as it is short further to cause speed reducer the internal gear life-span to occur, and connecting bolt is loosening easily everywhere.Have a strong impact on the reliability and stability of yawing reducer.
In sum, existing wind-power generating yaw speed reducer needs further to improve.
The model utility content
The purpose of this utility model is to provide a kind of wind-power generating yaw speed reducer, it can overcome the shortcoming of prior art, can guarantee the sealability of speed reducer reliably, adapt to the usage requirement of wind field rugged environment, realized the transmission effect of load balancing mechanism of speed reducer the best, reduce vibration and noise, reduced the manufacture difficulty of vital part simultaneously, thereby guarantee the reliability and stability of wind-power generating yaw speed reducer.
The technical solution of the utility model is:
A kind of wind-power generating yaw speed reducer, it is a vertical planetary reducer, by casing, from the input shaft of casing upper end input, place the planetary reduction gear assembly that links with input shaft in the casing, form from the output shaft of casing lower end output, it is characterized in that: the inner chamber of described casing is separated into two cavitys up and down by two oil sealings, upper cavity is isolated sealing by the middle level oil sealing that is positioned at the output shaft upper end, be provided with drive mechanism spare in the upper cavity and be loaded with lubricant oil, lower chamber is by the outer oil sealing sealing that is positioned at the output shaft lower end.
As to further improvement of the utility model, the bearing of described output shaft is two tapered roller bearings of upper and lower settings in casing, and the diameter of last tapered roller bearing is less than tapered roller bearing down.
As to further improvement of the utility model, described middle level oil sealing is positioned under the upper bearing (metal) of output shaft, and described outer oil sealing is positioned at the output shaft lip place of casing, and described lower chamber is loaded with lubricating grease.
As to further improvement of the utility model, the connecting mode of the central gear of described input shaft and planetary reduction gear assembly is detachable connecting mode.
As to further improvement of the utility model, described input shaft is that involute splines connects with the detachable connecting mode of the central gear of planetary reduction gear assembly.
The beneficial effects of the utility model are:
The utility model is designed to double-deck the layout with the casing oil seal structure, the upper strata lubricating oil filling, and lower floor's output terminal is grease-added, and the centre separates by the middle level oil sealing, and the lower end is provided with outer oil sealing.Changed in the past single lubricating oil filling and not grease-added oil seal structure, can significantly improve the working medium pressure ability to bear, can guarantee the sealability of speed reducer reliably, influence oil quality thereby this upper and lower settings structure can guarantee that lubricant oil and lubricating grease can not mix.
The utility model is designed to involute splines with input shaft with the central gear connecting mode of planetary gear speed-reduction assembly and connects, change input shaft and central gear in the past and be whole structure, not only reduced the manufacture difficulty of this part, can also guarantee its installation precision better, after the most important thing is to adopt involute splines to connect, utilize its self-centering action that each tooth is contacted simultaneously, not only stressed evenly and also loaded area big, impact little during work, thereby realized best transmission effect of load balancing mechanism, reduced vibration and the noise of speed reducer when operation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described
Fig. 1 is a structural representation of the present utility model;
Among the figure:
1, input shaft, 2, casing, 3, bearing of input shaft, 4, central gear, 5, NGW planetary reduction gear assembly, 6, go up tapered roller bearing, 7, the middle level oil sealing, 8, output shaft, 9, tapered roller bearing down, 10, outer oil sealing.
Embodiment
Embodiment 1:
A kind of wind-power generating yaw speed reducer, as shown in Figure 1, it is a vertical planetary reducer, by cylindrical box 2, from the input shaft 1 of casing upper end input, place planetary reduction gear assembly 5 casing 2 in, export from casing 2 lower ends output shaft 8 form.Casing 2 input end flange center are equipped with the bearing of input shaft 3 of supporting speed reducer input shaft 1, and NGW planetary reduction gear assembly 5 comprises central gear 4 parts such as grade.The inner chamber of casing 2 is separated into two cavitys up and down by two oil sealings, upper cavity is isolated sealing by the middle level oil sealing 7 that is positioned at output shaft 8 upper ends, be provided with drive mechanism spare in the upper cavity and be loaded with lubricant oil, lower chamber is by outer oil sealing 10 sealings that are positioned at output shaft 8 lower ends, and lower chamber is loaded with lubricating grease.Middle level oil sealing 7 is positioned under the last tapered roller bearing 6 of output shaft 8, outer oil sealing 10 is positioned at the output shaft 8 lip places of casing, the specification of last tapered roller bearing is 32022, following tapered roller bearing specification 30228, the central gear 4 of input shaft 1 and planetary reduction gear assembly 5 connects for dismountable involute splines.
Claims (7)
1. wind-power generating yaw speed reducer, it is a vertical planetary reducer, by casing, from the input shaft of casing upper end input, place the planetary reduction gear assembly that links with input shaft in the casing, form from the output shaft of casing lower end output, it is characterized in that: the inner chamber of described casing is separated into two cavitys up and down by two oil sealings, upper cavity is isolated sealing by middle level oil sealing that is positioned at the output shaft upper end and lower chamber, be provided with drive mechanism spare in the described upper cavity and be loaded with lubricant oil, lower chamber is hermetically enclosed by the outer oil sealing that is positioned at the output shaft lower end.
2. a kind of wind-power generating yaw speed reducer according to claim 1 is characterized in that: the bearing of described output shaft is two tapered roller bearings of upper and lower settings in casing, and the diameter of last tapered roller bearing is less than following tapered roller bearing.
3. a kind of wind-power generating yaw speed reducer according to claim 2, it is characterized in that: described middle level oil sealing is positioned under the last tapered roller bearing of output shaft, described outer oil sealing is positioned at the output shaft lip place of casing, and described lower chamber is loaded with lubricating grease.
4. a kind of wind-power generating yaw speed reducer according to claim 1 is characterized in that: the connecting mode of the central gear of described input shaft and planetary reduction gear assembly is detachable connecting mode.
5. a kind of wind-power generating yaw speed reducer according to claim 4 is characterized in that: described input shaft is that involute splines connects with the detachable connecting mode of the central gear of planetary reduction gear assembly.
6. a kind of wind-power generating yaw speed reducer according to claim 3 is characterized in that: the connecting mode of the central gear of described input shaft and planetary reduction gear assembly is detachable connecting mode.
7. a kind of wind-power generating yaw speed reducer according to claim 6 is characterized in that: described input shaft is that involute splines connects with the detachable connecting mode of the central gear of planetary reduction gear assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201865082U CN201705592U (en) | 2010-05-12 | 2010-05-12 | Yawing speed reducer for wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201865082U CN201705592U (en) | 2010-05-12 | 2010-05-12 | Yawing speed reducer for wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201705592U true CN201705592U (en) | 2011-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201865082U Expired - Fee Related CN201705592U (en) | 2010-05-12 | 2010-05-12 | Yawing speed reducer for wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201705592U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518552A (en) * | 2011-12-29 | 2012-06-27 | 大连华锐重工集团股份有限公司 | Yaw drive for wind generating set |
| CN103791037A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power generation variable-pitch speed reducing device with bearings lubricated by grease |
| CN113431894A (en) * | 2021-04-30 | 2021-09-24 | 金铂睿动力科技(无锡)有限公司 | Novel power head speed reducer input end |
-
2010
- 2010-05-12 CN CN2010201865082U patent/CN201705592U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518552A (en) * | 2011-12-29 | 2012-06-27 | 大连华锐重工集团股份有限公司 | Yaw drive for wind generating set |
| CN103791037A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power generation variable-pitch speed reducing device with bearings lubricated by grease |
| CN113431894A (en) * | 2021-04-30 | 2021-09-24 | 金铂睿动力科技(无锡)有限公司 | Novel power head speed reducer input end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHUZHOU JIUZHOU TRANSMISSION MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHUZHOU CHINA-SWELL INDUSTRY CO., LTD. Effective date: 20141016 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141016 Address after: 412003 A-11 District, Jinshan Industrial Park, lotus pond area, Zhuzhou, Hunan Patentee after: ZHUZHOU JIUZHOU TRANSMISSION MACHINERY EQUIPMENT CO., LTD. Address before: 412003 Hunan city of Zhuzhou province Hetang District No. 1 Dai Ling Patentee before: Zhuzhou China-swell Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20160512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |