CN103711879B - A kind of wind turbine gearbox mechanical labyrinth sealing configuration - Google Patents
A kind of wind turbine gearbox mechanical labyrinth sealing configuration Download PDFInfo
- Publication number
- CN103711879B CN103711879B CN201410021793.5A CN201410021793A CN103711879B CN 103711879 B CN103711879 B CN 103711879B CN 201410021793 A CN201410021793 A CN 201410021793A CN 103711879 B CN103711879 B CN 103711879B
- Authority
- CN
- China
- Prior art keywords
- output shaft
- end cap
- face
- spill port
- seal ring
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- 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
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0424—Lubricant guiding means in the wall of or integrated with the casing, e.g. grooves, channels, holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a kind of wind turbine gearbox mechanical labyrinth sealing configuration, comprise rear box, output shaft, output shaft seal ring, output shaft end cap, output shaft disc, output shaft is installed on the back shell by ball bearing, the first oil back chamber is provided with between ball bearing and output shaft seal ring and output shaft, the second oil back chamber is provided with between output shaft seal ring and output shaft end cap, it is characterized in that: the vent having through sidewall on the upper portion side wall end face of rear box vertically, the lower sides end face of rear box has to tilt with axis first spill port of 6 ° and the second spill port, first spill port is positioned at the positive bottom of rear box sidewall end face, the axis of the second spill port becomes 40 ° of angles with vertical line, the endoporus of output shaft end cap has two circular grooves, makes between output shaft end cap and output shaft disc, to form the 3rd oil back chamber and the 4th oil back chamber.Its advantage is: can effectively ensure in gear-box running oil-proof.
Description
Technical field
The present invention relates to a kind of wind turbine gearbox mechanical labyrinth sealing configuration, belong to wind turbine gearbox technical field.
Background technique
Now in the wind power equipment of wind field use, the leakage of oil of gear-box labyrinth is comparatively general, and the external gear-box produced also finds there is oil leakage phenomenon at output shaft labyrinth place.
Summary of the invention
The object of the invention is for the problems referred to above, a kind of wind turbine gearbox mechanical labyrinth sealing configuration that effectively can prevent leakage of oil is provided.
Technological scheme of the present invention is as follows:
The present invention includes rear box, output shaft, output shaft seal ring, output shaft end cap, output shaft disc, output shaft is installed on the back shell by ball bearing, output shaft seal ring is located between rear box and output shaft, and install on the back shell, output shaft end cap is arranged on the rear portion of rear box, output shaft disc is located between output shaft end cap and output shaft, and be arranged on output shaft, the first oil back chamber is provided with between ball bearing and output shaft seal ring and output shaft, the second oil back chamber is provided with between output shaft seal ring and output shaft end cap, it is characterized in that: on the upper portion side wall end face of rear box, level has the vent of through sidewall vertically, the lower sides end face of rear box has to tilt with axis first spill port of 6 ° and the second spill port, first spill port is positioned at the positive bottom of rear box sidewall end face, the axis of the second spill port becomes 40 ° of angles with vertical line, the endoporus of output shaft end cap has two circular grooves, make between output shaft end cap and output shaft disc, to form the 3rd oil back chamber and the 4th oil back chamber, first spill port and the second spill port and the equal UNICOM of each oil back chamber, have the first vent slot communicated with vent on the top of the end face of output shaft seal ring, become with vertical line in the bottom of the end face of output shaft seal ring the position of 40 ° to have the first oil-return groove communicated with the second spill port, in the end face of output shaft end cap, the top on edge has the second vent slot communicated with vent, and in the end face of output shaft end cap, the bottom on edge has the second oil-return groove communicated with the first spill port.
The sidewall of described 3rd, the 4th oil back chamber is equipped with and oblique gets rid of oil groove;
0.5 ~ 0.6mm gap is had between the opposing side between described output shaft seal ring and output shaft;
The main body of the end face of described output shaft end cap is toroidal surface, increases have the banded face of one section of circular arc in the bottom of toroidal surface;
Be interference fit between described output shaft disc and output shaft, the minimum clearance between the cylindrical sidewall of output shaft disc and output shaft end cap is 0.5 ~ 0.6mm.
Advantage of the present invention is: structure is simple, manufacturing difficulty is low, assembling difficulty is low, the phenomenons such as mechanical interference can not be there is because of machining accuracy difference, the present invention has the advantages that structure uniqueness, oil back chamber and case internal pressure balance, oil back chamber can not be caused to cause the phenomenon of fluid suck-back due to vacuum that high rotating speed is formed, can effectively ensure in gear-box running oil-proof.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the I portion enlarged view of Fig. 1;
Fig. 3 is the plan view of rear box;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the plan view of output shaft seal ring;
Fig. 6 is the C-C sectional view of Fig. 5;
Fig. 7 is the plan view of output shaft end cap;
Fig. 8 is the A-A sectional view of Fig. 7;
Fig. 9 is the structural representation of output shaft disc.
Embodiment
With reference to accompanying drawing 1, the present invention includes rear box 1, output shaft 20, output shaft seal ring 2, output shaft end cap 3, output shaft disc 4, output shaft is installed on the back shell by ball bearing 6, output shaft seal ring is located between rear box and output shaft, and install on the back shell, output shaft end cap is arranged on the rear portion of rear box, output shaft disc is located between output shaft end cap and output shaft, and be arranged on output shaft, the first oil back chamber 7 is provided with between ball bearing and output shaft seal ring and output shaft, the second oil back chamber 8 is provided with between output shaft seal ring and output shaft end cap.The endoporus of output shaft end cap has two circular grooves, makes between output shaft end cap and output shaft disc, to form the 3rd oil back chamber 9 and the 4th oil back chamber 10.
With reference to accompanying drawing 3,4, on the upper portion side wall end face of rear box, level has the vent 5 of through sidewall vertically, the lower sides end face of rear box has first spill port 11 and second spill port 13 of 6 ° of tilting with axis, first spill port is positioned at the positive bottom of rear box sidewall end face, and the axis of the second spill port becomes 40 ° of angles with vertical line; Vent makes each oil back chamber maintain certain air pressure, two spill ports to immediately below tilt 6 °, gear-box is down inclination 5 ° in working order, which ensure that spill port has the inclination of 1 °;
With reference to accompanying drawing 5,6, output shaft seal ring is non-rotating, with rear box interference fit, has 0.5 ~ 0.6mm gap with revolving part output shaft in the scope of length 17mm, can ensure not interfere when rotating, and can prevent again a large amount of fluid from flowing into the second chamber.The top of end face at its upper end has the first vent slot 14 communicated with vent, the first oil pocket is made to maintain stable air pressure, lower end and vertical line become the first oil-return groove 15 height of 40 ° having and communicates with the second spill port, guarantee that there is certain trapped fuel amount at bearing place, be unlikely to again fluid too high, to second, third, the 4th oil back chamber pours in.And positioning pin hole 16 is set above its side, guarantee that venting channels and drainback passage are aimed at, do not misplace;
With reference to accompanying drawing 7,8, in order to make enough large of oil back chamber, be designed in the bottom of output shaft end cap widened (under normal circumstances, the cylindrical of end cap is a full circle), the main body being designed to the end face of output shaft end cap of the present invention is toroidal surface, increase in the bottom of toroidal surface and have the banded face 19 of one section of circular arc, improve the reliability of end face seal.Between output shaft end cap and output shaft disc, devise the 3rd, the 4th oil back chamber, in the end face of output shaft end cap, the top on edge has the second vent slot 17 communicated with vent, provides passage for the air in tooth case enters each oil back chamber; In the end face of output shaft end cap, the bottom on edge has the second oil-return groove 18 communicated with the first spill port, and fluid is returned smoothly into fuel tank;
In addition, with reference to accompanying drawing 2,7, the 3rd, the 4th oil back chamber sidewall devises and gets rid of oil groove 12, be used for changing fluid flow direction, guarantee that fluid flow to each oil back chamber and spill port, stop fluid axially to flow;
With reference to accompanying drawing 9, output shaft disc is revolving part, is interference fit with output shaft, makes itself and output shaft become an integral-rotation, and and do not have fluid between output shaft and flow out; The gap of 0.5 ~ 0.6mm is had respectively at length 9mm, 15mm, 12mm tri-sections with non-rotating output shaft end cap, under guarantee revolving part and non-rotating the condition do not interfered, effectively ensure that each oil back chamber fluid outwards reduces step by step, until all return fuel tank; In addition, what on its cylindrical, the 3rd, the 4th oil back chamber place designed gets rid of oil groove, most of fluid can be made to be thrown to when output shaft runs up on the outer side wall of the 3rd, the 4th oil back chamber, and flow into the spill port of bottom.
Claims (5)
1. a wind turbine gearbox mechanical labyrinth sealing configuration, comprise rear box, output shaft, output shaft seal ring, output shaft end cap, output shaft disc, output shaft is installed on the back shell by ball bearing, output shaft seal ring is located between rear box and output shaft, and install on the back shell, output shaft end cap is arranged on the rear portion of rear box, output shaft disc is located between output shaft end cap and output shaft, and be arranged on output shaft, the first oil back chamber is provided with between ball bearing and output shaft seal ring and output shaft, the second oil back chamber is provided with between output shaft seal ring and output shaft end cap, it is characterized in that: on the upper portion side wall end face of rear box, level has the vent of through sidewall vertically, the lower sides end face of rear box has to tilt with axis first spill port of 6 ° and the second spill port, first spill port is positioned at the positive bottom of rear box sidewall end face, the axis of the second spill port becomes 40 ° of angles with vertical line, the endoporus of output shaft end cap has two circular grooves, make between output shaft end cap and output shaft disc, to form the 3rd oil back chamber and the 4th oil back chamber, first spill port and the second spill port and the equal UNICOM of each oil back chamber, have the first vent slot communicated with vent on the top of the end face of output shaft seal ring, become with vertical line in the bottom of the end face of output shaft seal ring the position of 40 ° to have the first oil-return groove communicated with the second spill port, in the end face of output shaft end cap, the top on edge has the second vent slot communicated with vent, and in the end face of output shaft end cap, the bottom on edge has the second oil-return groove communicated with the first spill port.
2. wind turbine gearbox mechanical labyrinth sealing configuration according to claim 1, is characterized in that: be equipped with on the sidewall of described 3rd, the 4th oil back chamber and oblique get rid of oil groove.
3. wind turbine gearbox mechanical labyrinth sealing configuration according to claim 1, is characterized in that: described output shaft seal ring and output shaft have 0.5 ~ 0.6mm gap in the scope of length 17mm.
4. wind turbine gearbox mechanical labyrinth sealing configuration according to claim 1, is characterized in that: the main body of the end face of described output shaft end cap is toroidal surface, increases have the banded face of one section of circular arc in the bottom of toroidal surface.
5. wind turbine gearbox mechanical labyrinth sealing configuration according to claim 1, is characterized in that: described output shaft disc and output shaft are interference fit, has the gap of 0.5 ~ 0.6mm respectively with output shaft end cap at length 9mm, 15mm, 12mm tri-sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021793.5A CN103711879B (en) | 2014-01-17 | 2014-01-17 | A kind of wind turbine gearbox mechanical labyrinth sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021793.5A CN103711879B (en) | 2014-01-17 | 2014-01-17 | A kind of wind turbine gearbox mechanical labyrinth sealing configuration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103711879A CN103711879A (en) | 2014-04-09 |
| CN103711879B true CN103711879B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410021793.5A Expired - Fee Related CN103711879B (en) | 2014-01-17 | 2014-01-17 | A kind of wind turbine gearbox mechanical labyrinth sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711879B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867691A (en) * | 2014-04-15 | 2014-06-18 | 郑州机械研究所 | Shaft-end seal and oil return structure of gear box |
| CN104879479A (en) * | 2015-05-18 | 2015-09-02 | 江苏泰隆减速机股份有限公司 | Double-layer leakage-free end cover |
| BR112018009572A2 (en) * | 2015-11-13 | 2018-11-06 | Dana Heavy Vehicle Systems Group, Llc | shaft assembly |
| TWI603020B (en) | 2016-11-04 | 2017-10-21 | 財團法人工業技術研究院 | Fluid machinery lubrication system assembly |
| CN107283300A (en) * | 2017-07-04 | 2017-10-24 | 广东赛因迪科技股份有限公司 | A kind of planetary bistrique with anti-oil leakage mechanism |
| CN107806505B (en) * | 2017-12-12 | 2024-01-05 | 重庆望江工业有限公司 | Wind-powered electricity generation gear box output shaft seal structure |
| CN107939954A (en) * | 2017-12-26 | 2018-04-20 | 三重能有限公司 | Sealing structure and wind power speed-increasing machine for wind power speed-increasing machine |
| CN108711997B (en) * | 2018-05-17 | 2019-12-20 | 中车永济电机有限公司 | Multifunctional motor bearing sealing structure |
| CN111173915A (en) * | 2018-12-28 | 2020-05-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | Gear box of railway vehicle with novel bearing configuration mode |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2161198B1 (en) * | 2000-05-16 | 2002-07-01 | Calmar Monturas Sa | PUMP WITH DECOMPRESSION DEVICE. |
| CN201588744U (en) * | 2009-11-03 | 2010-09-22 | 南车戚墅堰机车车辆工艺研究所有限公司 | Sealing device of wind power generation speed-increasing gearbox |
| CN102782374B (en) * | 2010-03-03 | 2015-11-25 | 索尤若驱动有限及两合公司 | For making structure and the gear mechanism of rotatably mounted axle and shell noncontact seal |
| CN202125617U (en) * | 2011-06-29 | 2012-01-25 | 杭州开兰重工机械有限公司 | Improved sealing structure of output end of high-speed output shaft of wind power gear box |
| CN202451792U (en) * | 2012-02-22 | 2012-09-26 | 天津市祥威传动设备有限公司 | High speed class combined seal oil return mechanism in main wind power gear box |
| CN203189693U (en) * | 2013-03-29 | 2013-09-11 | 常州市瑞泰工程机械有限公司 | Self-backflow type sealing structure of rail vehicle gear case |
-
2014
- 2014-01-17 CN CN201410021793.5A patent/CN103711879B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN103711879A (en) | 2014-04-09 |
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