CN109340355A - Vertical planetary gear box and its shunt non-contact seal structure - Google Patents
Vertical planetary gear box and its shunt non-contact seal structure Download PDFInfo
- Publication number
- CN109340355A CN109340355A CN201811002088.5A CN201811002088A CN109340355A CN 109340355 A CN109340355 A CN 109340355A CN 201811002088 A CN201811002088 A CN 201811002088A CN 109340355 A CN109340355 A CN 109340355A
- Authority
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- China
- Prior art keywords
- oil
- gear
- planetary gear
- transparent cover
- wheel carrier
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 230000002787 reinforcement Effects 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 138
- 239000007788 liquid Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 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
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
-
- 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
-
- 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
- F16H57/0447—Control of lubricant levels, e.g. lubricant level control dependent on temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of vertical planetary gear box using contactless oil sealing and its shunt non-contact seal structure, shunt non-contact seal structure includes: gear housing, planetary wheel carrier, wheel carrier bearing, outer gear ring, planetary gear, planet wheel bearing, pin shaft, oil scraper ring, transparent cover, main oil return pipe and auxiliary oil return pipe；Planetary wheel carrier is equipped with output shaft；Output shaft, which is forwarded to move by wheel frame axle, is connected to gear housing；Outer gear ring is fixed to gear housing；Pin shaft is fixed to planetary wheel carrier；Planetary gear is rotatablely connected by planet wheel bearing to pin shaft；Planetary gear is engaged with outer gear ring；Transparent cover is fixed to gear housing；Output shaft passes through transparent cover；Gear housing is equipped with: main oil sump and auxiliary oil sump for oil-collecting；Transparent cover is formed with the seal oil chamber that the auxiliary oil sump of connection collects the oil of lubrication wheel carrier bearing.The invention has the beneficial effects that sealing effect is good, and disclosure risk is low using independent shunting non-contact seal structure.
Description
Technical field
The present invention relates to a kind of vertical planetary gear box using contactless oil sealing and its shunt non-contact seals knots
Structure.
Background technique
The sealing of vertical planetary gear box generallys use oil enveloping structure.However the use of oil enveloping structure is largely by temperature
Limitation requires clean environment degree very high.With the extension of use time, the aging of oil sealing may result in seal failure.This
So that traditional oil enveloping structure has been unable to satisfy gear-box and has needed sealing structure with high reliablity, long service life, Yi Wei
The good requirement of shield property.
Summary of the invention
To solve the deficiencies in the prior art, it is non-using the realization of independent distribution pipeline that the present invention provides a kind of non-shunts
Contact sealing, sealing effect is good, and disclosure risk is low, improves product ease for maintenance, improves gear-box overall performance.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of shunt non-contact seal structure applied to vertical planetary gear box, comprising: gear housing, planetary wheel carrier, wheel
Frame bearing, outer gear ring, planetary gear, planet wheel bearing, pin shaft, oil scraper ring, transparent cover, main oil return pipe and auxiliary oil return pipe；Planetary wheel carrier
Equipped with output shaft；Output shaft, which is forwarded to move by wheel frame axle, is connected to gear housing；Outer gear ring is fixed to gear housing；Pin shaft is fixed
To planetary wheel carrier；Planetary gear is rotatablely connected by planet wheel bearing to pin shaft；Planetary gear is engaged with outer gear ring；Oil scraper ring is fixed to
Output shaft；Transparent cover is fixed to gear housing；Output shaft passes through transparent cover；Gear housing is equipped with: for the main oil sump of oil-collecting and auxiliary
Oil sump；Transparent cover is formed with the seal oil chamber that the auxiliary oil sump of connection collects the oil of lubrication wheel carrier bearing；Main oil return pipe is connected to main collection
Oil sump；Auxiliary oil return pipe communication seals oil pocket.
Further, main oil return pipe is fixed to gear-box；Auxiliary oil return pipe is fixed to transparent cover.
Further, transparent cover is formed with the oily wall of gear；Oil scraper ring is formed with seal groove；The notch of seal groove is directed away from wheel carrier
The side of bearing；It keeps off oily wall and stretches to seal groove.
Further, transparent cover is formed with the oily wall of gear；Oil scraper ring includes collar portion, block reinforcement ring portion and connecting ring portion；Connection ring
Portion connects collar portion and block reinforcement ring portion；Collar portion is socketed in the periphery of output shaft；Keep off the periphery that oily wall is socketed in collar portion；Block reinforcement
Portion is set to the periphery for keeping off oily wall.
It further, further include dust-proof seal ring applied to the shunt non-contact seal structure of vertical planetary gear box；
Dust-proof seal ring is set to the periphery of output shaft.
Further, pin shaft is formed with the oilhole that guiding oil enters auxiliary oil sump.
A kind of vertical planetary gear box using contactless oil sealing, comprising: gear housing, planetary wheel carrier, wheel carrier bearing,
Outer gear ring, planetary gear, planet wheel bearing, pin shaft, oil scraper ring and transparent cover；Planetary wheel carrier is equipped with output shaft；Output shaft passes through wheel carrier
Bearing is rotatablely connected to gear housing；Outer gear ring is fixed to gear housing；Pin shaft is fixed to planetary wheel carrier；Planetary gear passes through planet
Wheel bearing is rotatablely connected to pin shaft；Planetary gear is engaged with outer gear ring；Oil scraper ring is fixed to output shaft；Transparent cover is fixed to gear-box
Body；Output shaft passes through transparent cover；Gear housing is equipped with: main oil sump and auxiliary oil sump for oil-collecting；Transparent cover, which is formed, collects lubrication
The seal oil chamber of the oil of wheel carrier bearing；Seal oil chamber is connected to auxiliary oil sump；Gear housing is formed with for the oil row in main oil sump
Main oil return hole out；Transparent cover is formed with the auxiliary oil return hole for the oil discharge in seal oil chamber.
Further, gear housing includes first shell；First shell forms main oil sump and auxiliary oil sump.
It further, further include main oil return pipe and auxiliary oil return pipe using the vertical planetary gear box of contactless oil sealing；It is main
Oil return pipe is installed to gear housing；Auxiliary oil return pipe is installed to transparent cover；Main oil return pipe is connected to main oil return hole；Auxiliary oil return pipe is connected to
Auxiliary oil return hole.
Further, pin shaft is formed with the oilhole that guiding oil enters auxiliary oil sump.
The invention has the beneficial effects that shunt realizes non-contacting seal, sealing effect using independent distribution pipeline
Good, disclosure risk is low, improves product ease for maintenance, improves gear-box overall performance.
Main oil sump is for assembling most of lubricating oil in gear-box, then from main oil return pipe oil return；Auxiliary oil sump is used for
The lubricating oil of aggregation lubrication wheel carrier bearing, and realize oil sealing function.Using independent distribution pipeline convenient in control seal oil chamber
The height of oil liquid realizes higher sealing effect.Auxiliary oil return line can be using liquid levels such as linkers far from the height for controlling oil liquid
Degree guarantees the reliability of sealing.
Detailed description of the invention
Fig. 1 is of the invention a kind of non-contact close using the vertical planetary gear box and its shunt of contactless oil sealing
The schematic diagram of seal structure；
Fig. 2 is the partial enlarged view of structure in Fig. 1.
Gear housing 100, main oil sump 101, auxiliary oil sump 102, main oil return hole 103, auxiliary oil return hole 104, first shell
105, planetary wheel carrier 10, wheel carrier bearing 11, output shaft 12, outer gear ring 20, planetary gear 30, planet wheel bearing 31, pin shaft 40, oilhole
41, oil scraper ring 50, seal groove 51, transparent cover 60, the oily wall 61 of gear, main oil return pipe 70, auxiliary oil return pipe 80, seal oil chamber 62.
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of shunt non-contact seal structure applied to vertical planetary gear box, comprising: gear-box
Body 100, planetary wheel carrier 10, wheel carrier bearing 11, outer gear ring 20, planetary gear 30, planet wheel bearing 31, pin shaft 40, oil scraper ring 50, thoroughly
Lid 60, main oil return pipe 70 and auxiliary oil return pipe 80.Planetary wheel carrier 10 is equipped with output shaft 12.Output shaft 12 is rotated by wheel carrier bearing 11
It is connected to gear housing 100.
Specifically, the oil in gear housing 100 is lubricated output shaft 12 and wheel carrier bearing 11.Due to vertical-type planetary
Gear-box is installed using vertical mode, and oil is injected into gear housing 100 from the top of gear housing 100, from top to bottom
It is lubricated.Pin shaft 40 is formed with oilhole 41.The oil of top is under the guiding of oilhole 41 to wheel carrier bearing 11 in gear housing 100
It is lubricated.Oilhole 41 can also be lubricated planet wheel bearing 31.Specifically, oilhole 41 includes vertical hole and cross-drilled hole；It is vertical
Hole is connected to cross-drilled hole；It passes through across the oil stream of vertical hole to wheel carrier bearing 11 and is lubricated.Cross-drilled hole guiding oil flows to planet wheel bearing
31 are lubricated.
The oil of lubrication planet wheel bearing 31 and wheel carrier bearing 11 finally flows into main oil return pipe 70 and auxiliary time under the effect of gravity
Oil pipe 80.
As a kind of specific embodiment, pin shaft 40 is fixed to planetary wheel carrier 10；Planetary gear 30 passes through planet wheel bearing
31 are rotatablely connected to pin shaft 40.Gear housing 100 is additionally provided with main oil sump 101 and auxiliary oil sump 102.Main oil sump 101 and auxiliary
Oil sump 102 is used to collect the oil for flowing to 100 lower section of gear housing under the effect of gravity.Transparent cover 60 is formed with seal oil chamber 62.
Seal oil chamber 62 is connected to auxiliary oil sump 102 to collect the oil of lubrication wheel carrier bearing 11.The oil in seal oil chamber 62 realizes oil simultaneously
Seal function.Main oil return pipe 70 is connected to main oil sump 101 and becomes owner of the progress oil return of oil return pipe 70 for the oil stream of main oil sump 101, so as to
In quick oil return.Auxiliary 80 communication seals oil pocket 62 of oil return pipe is flowed into auxiliary time for the oil in auxiliary oil sump 102 by seal oil chamber 62
Oil pipe 80 carries out oil return.
As a kind of specific embodiment, gear housing 100 is formed with main oil return hole 103 in main oil sump 101
Oil discharge.Transparent cover 60 is formed with auxiliary oil return hole 104 and is discharged for the oil in seal oil chamber 62.And gear housing 100 includes first shell
Body 105.Main oil sump 101 and auxiliary oil sump 102 are formed by first shell 105.Main oil return pipe 70 is connected to main oil return hole
103；Auxiliary oil return pipe 80 is connected to auxiliary oil return hole 104.
As a preferred embodiment, main oil return pipe 70 is fixed to gear-box；Auxiliary oil return pipe 80 is fixed to transparent cover 60.
As an alternative embodiment, the oil of main oil return pipe 70 and auxiliary oil return pipe 80 can collaborate to together, then into
Row oil return.As a kind of specific embodiment, oil scraper ring 50 is fixed to output shaft 12.Transparent cover 60 is fixed to gear housing 100.
Output shaft 12 passes through transparent cover 60.
As a preferred embodiment, transparent cover 60 is also formed with the oily wall 61 of gear.Oil scraper ring 50 is formed with seal groove 51.
Keeping off oily wall 61 cooperates seal groove 51 to realize the sealing to auxiliary oil sump 102 and seal oil chamber 62, to prevent oil from oil scraper ring 50
Gap between transparent cover 60 penetrates gear housing 100.Specifically, the notch of seal groove 51 is directed away from wheel carrier bearing 11
Side.It keeps off oily wall 61 and stretches to seal groove 51.Oil scraper ring 50 and transparent cover 60 constitute labyrinth structure, realize sealing function.
As an alternative embodiment, oil scraper ring 50 includes collar portion, block reinforcement ring portion and connecting ring portion.Connecting ring portion
Connect collar portion and block reinforcement ring portion.Collar portion is socketed in the periphery of output shaft 12.Keep off the periphery that oily wall 61 is socketed in collar portion.Gear
Muscle portion is set to the periphery for keeping off oily wall 61.The sealing to auxiliary oil sump 102 and seal oil chamber 62 is realized with this.Oil scraper ring 50 and thoroughly
The non-contacting sealing structure that lid 60 is formed is dynamic and static ring sealing structure.Oil scraper ring 50 and transparent cover 60 are also possible to other dynamic and static rings
Sealing structure.
As a kind of specific embodiment, outer gear ring 20 is fixed to gear housing 100.Planetary gear 30 is nibbled with outer gear ring 20
It closes.
Shunt non-contact seal structure applied to vertical planetary gear box further includes dust-proof seal ring.Dust-proof seal ring
The gap formed between output shaft 12 and oil scraper ring 50 can be sealed, prevents extraneous dust from entering gear housing 100.As one
Kind specific embodiment, dust-proof seal ring are set to the periphery of output shaft 12.
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 (10)
1. a kind of shunt non-contact seal structure applied to vertical planetary gear box characterized by comprising gear-box
Body, planetary wheel carrier, wheel carrier bearing, outer gear ring, planetary gear, planet wheel bearing, pin shaft, oil scraper ring, transparent cover, main oil return pipe and auxiliary time
Oil pipe；The planetary wheel carrier is equipped with output shaft；The output shaft, which is forwarded to move by the wheel frame axle, is connected to the gear housing；
The outer gear ring is fixed to the gear housing；The pin shaft is fixed to the planetary wheel carrier；The planetary gear passes through the row
Bearing of planetary gear is rotatablely connected to the pin shaft；The planetary gear is engaged with the outer gear ring；The oil scraper ring is fixed to described defeated
Shaft；The transparent cover is fixed to the gear housing；The output shaft passes through the transparent cover；The gear housing is equipped with: being used for
The main oil sump and auxiliary oil sump of oil-collecting；The transparent cover, which is formed with the connection auxiliary oil sump and collects, lubricates the wheel carrier bearing
The seal oil chamber of oil；The main oil return pipe is connected to the main oil sump；The auxiliary oil return pipe is connected to the seal oil chamber.
2. the shunt non-contact seal structure according to claim 1 applied to vertical planetary gear box, feature exist
In,
The main oil return pipe is fixed to the gear-box；The auxiliary oil return pipe is fixed to the transparent cover.
3. the shunt non-contact seal structure according to claim 1 applied to vertical planetary gear box, feature exist
In,
The transparent cover is formed with the oily wall of gear；The oil scraper ring is formed with seal groove；The notch of the seal groove is directed away from described
The side of wheel carrier bearing；The oily wall of the gear stretches to the seal groove.
4. the shunt non-contact seal structure according to claim 1 applied to vertical planetary gear box, feature exist
In,
The transparent cover is formed with the oily wall of gear；The oil scraper ring includes collar portion, block reinforcement ring portion and connecting ring portion；The connecting ring portion
Connect the collar portion and block reinforcement ring portion；The collar portion is socketed in the periphery of the output shaft；The oily wall of the gear is socketed in institute
State the periphery of collar portion；The block reinforcement portion is set to the periphery for keeping off oily wall.
5. the shunt non-contact seal structure according to claim 1 applied to vertical planetary gear box, feature exist
In,
The shunt non-contact seal structure applied to vertical planetary gear box further includes dust-proof seal ring；It is described dust-proof close
Seal is set to the periphery of the output shaft.
6. according to claim 1 to the shunt non-contact seals knot for being applied to vertical planetary gear box described in 5 any one
Structure, which is characterized in that
The pin shaft is formed with the oilhole that guiding oil enters the auxiliary oil sump.
7. a kind of vertical planetary gear box using contactless oil sealing characterized by comprising gear housing, planetary wheel carrier,
Wheel carrier bearing, outer gear ring, planetary gear, planet wheel bearing, pin shaft, oil scraper ring and transparent cover；The planetary wheel carrier is equipped with output shaft；Institute
It states output shaft and is forwarded by the wheel frame axle and dynamic be connected to the gear housing；The outer gear ring is fixed to the gear housing；
The pin shaft is fixed to the planetary wheel carrier；The planetary gear is rotatablely connected by the planet wheel bearing to the pin shaft；Institute
Planetary gear is stated to engage with the outer gear ring；The oil scraper ring is fixed to the output shaft；The transparent cover is fixed to the gear-box
Body；The output shaft passes through the transparent cover；The gear housing is equipped with: main oil sump and auxiliary oil sump for oil-collecting；It is described
Transparent cover forms the seal oil chamber for collecting the oil for lubricating the wheel carrier bearing；The seal oil chamber is connected to the auxiliary oil sump；It is described
Gear housing is formed with the main oil return hole for the oil discharge in the main oil sump；The transparent cover is formed with for the seal oil chamber
The auxiliary oil return hole of interior oil discharge.
8. the vertical planetary gear box according to claim 7 using contactless oil sealing, which is characterized in that
The gear housing includes first shell；The first shell forms the main oil sump and the auxiliary oil sump.
9. the vertical planetary gear box according to claim 7 using contactless oil sealing, which is characterized in that
The vertical planetary gear box using contactless oil sealing further includes main oil return pipe and auxiliary oil return pipe；The main oil return pipe
It installs to the gear housing；The auxiliary oil return pipe is installed to the transparent cover；The main oil return pipe is connected to the main oil return hole；
The auxiliary oil return pipe is connected to the auxiliary oil return hole.
10. using the vertical planetary gear box of contactless oil sealing, feature according to claim 7 to 9 any one
It is,
The pin shaft is formed with the oilhole that guiding oil enters the auxiliary oil sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002088.5A CN109340355A (en) | 2018-08-30 | 2018-08-30 | Vertical planetary gear box and its shunt non-contact seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002088.5A CN109340355A (en) | 2018-08-30 | 2018-08-30 | Vertical planetary gear box and its shunt non-contact seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340355A true CN109340355A (en) | 2019-02-15 |
Family
ID=65292133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811002088.5A Pending CN109340355A (en) | 2018-08-30 | 2018-08-30 | Vertical planetary gear box and its shunt non-contact seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340355A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331006B1 (en) * | 2000-01-25 | 2001-12-18 | General Electric Company | Brush seal mounting in supporting groove using flat spring with bifurcated end |
| CN200968409Y (en) * | 2006-11-10 | 2007-10-31 | 南京高速齿轮制造有限公司 | Lubricating mechanism of planet gear in wind power generator wheel box |
| CN201836305U (en) * | 2010-07-07 | 2011-05-18 | 荆州市巨鲸传动机械有限公司 | Leakproof vertical planetary speed reducer |
| WO2012055832A1 (en) * | 2010-10-25 | 2012-05-03 | Eickhoff Antriebstechnik Gmbh | Planetary gearing mechanism comprising a central distributor |
| CN104864078A (en) * | 2015-05-18 | 2015-08-26 | 江苏泰隆减速机股份有限公司 | Anti-oil-leakage rolling mill combined speed reducer |
| CN105156646A (en) * | 2015-08-14 | 2015-12-16 | 青岛大学 | Lubricating system of wind power gear box |
| CN105202169A (en) * | 2015-10-27 | 2015-12-30 | 太原重工股份有限公司 | Wind power step-up gear box |
| CN205315714U (en) * | 2016-01-29 | 2016-06-15 | 郑州机械研究所 | Axle head seal structure suitable for vertical planetary gear case |
| CN209083964U (en) * | 2018-08-30 | 2019-07-09 | 南京高精齿轮集团有限公司 | Vertical planetary gear box and its shunt non-contact seal structure |
-
2018
- 2018-08-30 CN CN201811002088.5A patent/CN109340355A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331006B1 (en) * | 2000-01-25 | 2001-12-18 | General Electric Company | Brush seal mounting in supporting groove using flat spring with bifurcated end |
| CN200968409Y (en) * | 2006-11-10 | 2007-10-31 | 南京高速齿轮制造有限公司 | Lubricating mechanism of planet gear in wind power generator wheel box |
| CN201836305U (en) * | 2010-07-07 | 2011-05-18 | 荆州市巨鲸传动机械有限公司 | Leakproof vertical planetary speed reducer |
| WO2012055832A1 (en) * | 2010-10-25 | 2012-05-03 | Eickhoff Antriebstechnik Gmbh | Planetary gearing mechanism comprising a central distributor |
| CN104864078A (en) * | 2015-05-18 | 2015-08-26 | 江苏泰隆减速机股份有限公司 | Anti-oil-leakage rolling mill combined speed reducer |
| CN105156646A (en) * | 2015-08-14 | 2015-12-16 | 青岛大学 | Lubricating system of wind power gear box |
| CN105202169A (en) * | 2015-10-27 | 2015-12-30 | 太原重工股份有限公司 | Wind power step-up gear box |
| CN205315714U (en) * | 2016-01-29 | 2016-06-15 | 郑州机械研究所 | Axle head seal structure suitable for vertical planetary gear case |
| CN209083964U (en) * | 2018-08-30 | 2019-07-09 | 南京高精齿轮集团有限公司 | Vertical planetary gear box and its shunt non-contact seal structure |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190920 Address after: 210000 No. 3, Jia Ao, Yuhuatai District, Jiangsu, Nanjing Applicant after: Nanjing High Precision Gear Group Co., Ltd. Applicant after: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. Address before: 210000 No. 3, Jia Ao, Yuhuatai District, Jiangsu, Nanjing Applicant before: Nanjing High Precision Gear Group Co., Ltd. |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200511 Address after: 211103 No. 79 Jianheng Road, Jiangning District, Nanjing City, Jiangsu Province Applicant after: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Address before: 210000 No. 3, Jia Ao, Yuhuatai District, Jiangsu, Nanjing Applicant before: NANJING HIGH-SPEED & ACCURATE GEAR GROUP Co.,Ltd. Applicant before: Nanjing High Precision Transmission Equipment Manufacturing Group Co., Ltd. |