CN207989701U - A kind of wind turbine gearbox output shaft seal structure - Google Patents
A kind of wind turbine gearbox output shaft seal structure Download PDFInfo
- Publication number
- CN207989701U CN207989701U CN201721723415.7U CN201721723415U CN207989701U CN 207989701 U CN207989701 U CN 207989701U CN 201721723415 U CN201721723415 U CN 201721723415U CN 207989701 U CN207989701 U CN 207989701U
- Authority
- CN
- China
- Prior art keywords
- sealing
- end cap
- leading portion
- back segment
- rear end
- 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
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of preferable wind turbine gearbox output shaft seal structures of leakproofness：The back segment of radial labyrinth formula sealing is equipped at least two back segment axial sealing parts for being tightly connected portion by its back segment that about middle part extends radially outwardly and being located in the back segment sealed connection portion,Leading portion is equipped with is tightly connected portion and the leading portion axial sealing part that is located in the leading portion sealed connection portion by the leading portion that its rear end extends radially outwardly,Rear end cap, which is equipped with, to be tightly connected portion by its rear end cap that about middle part extends radially inwardly and is located at by the rear end cap sealing in the rear end cap sealed connection portion,The rear end of drive end bearing bracket is equipped with and the matched drive end bearing bracket sealing of leading portion axial sealing part in leading portion sealed connection portion,Wherein,After the sealing of radial labyrinth formula,After on leading portion,Leading portion axial sealing part respectively with after end cap,After on drive end bearing bracket,Drive end bearing bracket both seals are assembled,After angle sealing sealing is assemblied in the sealing of radial labyrinth formula,Between leading portion.
Description
Technical field
The utility model is related to wind turbine gearbox sealing structures, and in particular to a kind of wind turbine gearbox output sealing knot
Structure.
Background technology
Wind turbine gearbox output shaft seal structure shown in Figure 1, traditional, including from front to back（For purposes of illustration only, this
Direction in Figure of description from right to left is defined as direction from front to back by utility model, similarly hereinafter）It axially connects successively
End cap 10, middle case 30 and rear box 50, rear end are assemblied in the rear box bearing 51 of rear box 50, preceding to be partially supported upon assembly
In bearing in middle case 30, front end stretch out in the output shaft 20 except the front end of end cap 10, radial seal is assemblied in end cap
Between 10 and output shaft 20 and with the radial labyrinth formula of 20 elastic conjunction of output shaft sealing 40, and by end cap 10 close to periphery
Extend and be connected to the drainback passage 60 of end cap 10 and rear box 50 to middle case 30.As seen from Figure 1, in traditional wind turbine gearbox
In output shaft seal structure, end cap 10 be monolithic construction, including end cap cavity 11 and by end cap cavity 11 front end and
The cyclic annular front end sealing 13 and cyclic annular middle part sealing 12 that middle part radial spacing extends internally and axial length is shorter,
Radial radial labyrinth formula sealing 40 includes back segment 41 and leading portion 42, i.e., radial radial labyrinth formula seals 4 only in the axis of end cap 10
Be tightly connected between output shaft 2 to the shorter cyclic annular front end sealing 13 of length and cyclic annular middle part sealing 12 and with
2 elastic conjunction of output shaft, existing technical problem are；
1, between radial radial labyrinth formula sealing 40 and end cap 10 only in axial cyclic annular front end sealing 13 and ring-type
It being tightly connected between the axial length of portion's sealing 12, axial seal length is shorter, i.e., sealing area is smaller, and leakproofness is poor,
It is relatively low to be easy loophole, safety and reliability.
2, the axial cyclic annular front end sealing 13 of end cap 10 and the axial length of cyclic annular middle part sealing 12 are shorter, must
Must accurate machining, control radial labyrinth formula sealing 40, the radial clearance precision between output shaft 20 and end cap 10, can have compared with
Good sealing effect and higher reliability, safety.This makes adding for radial labyrinth formula sealing 40, output shaft 20 and end cap 10
Work is relatively difficult, precision is difficult to ensure.
3, when by radial labyrinth formula sealing 40 back segment 41 and 42 elastic conjunction of leading portion after on output shaft 20, then with end cap
When 10 axial cyclic annular front end sealing 13 and cyclic annular middle part sealing 12 are tightly connected, connection is relatively difficult, not convenient enough.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of leakproofness preferably, safety and reliability is higher, dress
With it is more convenient be easy, processing be easier, the wind turbine gearbox output shaft seal structure that machining accuracy is easily guaranteed that.
In order to solve the above technical problems, the wind turbine gearbox output shaft seal structure of the utility model, including from front to back
End cap, middle case and the rear box axially connected successively, rear end is assemblied in the rear box bearing of rear box, preceding to be partially supported upon
Be assemblied in the bearing in middle case, front end stretches out in output shaft except the front end of end cap, radial seal be assemblied in end cap and
Radial labyrinth formula sealing between output shaft and with output shaft elastic conjunction, and extended from end cap close at periphery to middle case
And it is connected to the drainback passage of end cap and rear box, the radial labyrinth formula sealing includes back segment and leading portion, it is characterised in that：Also wrap
Angle sealing is included, the back segment of the radial labyrinth formula sealing is equipped with close by the back segment that about middle part extends radially outwardly of the back segment
Envelope interconnecting piece and at least two back segment axial sealing parts being located in the back segment sealed connection portion, leading portion are equipped with by the leading portion
The leading portion sealed connection portion and the leading portion axial sealing part being located in the leading portion sealed connection portion that rear end extends radially outwardly, it is described
End cap is split structure, including the rear end cap and drive end bearing bracket connected side by side, and the rear end cap is equipped with by the big of the rear end cap
The rear end cap sealed connection portion and be located at by being sealed with back segment in the rear end cap sealed connection portion that about middle part extends radially inwardly
The matched rear end cap sealing of back segment axial sealing part on interconnecting piece, the rear end of the drive end bearing bracket is equipped with to be sealed with leading portion
The matched drive end bearing bracket sealing of leading portion axial sealing part on interconnecting piece, wherein the back segment and leading portion of radial labyrinth formula sealing
On back segment axial sealing part and leading portion axial sealing part respectively with the rear end cap sealing on the rear end cap and drive end bearing bracket of end cap
It is assembled with drive end bearing bracket both seals, angle sealing sealing is assemblied between the back segment and leading portion of radial labyrinth formula sealing.
Further, the back segment axial sealing part on the back segment of the radial labyrinth formula sealing is to be tightly connected portion by back segment
At least two annular projections that axial spacing extends forward are accordingly located at rear end cap sealing and connect on the rear end cap of the end cap
Rear end cap sealing in socket part is at least two axial notches.
Further, the back segment axial sealing part in the back segment sealed connection portion of the back segment of the radial labyrinth formula sealing is
Cross sectional shape is trapezoidal or rectangle or zigzag or triangle or semicircle or at least two parabola shaped annular projections, is corresponded to
Ground, the rear end cap sealing in the rear end cap sealed connection portion of the rear end cap of the end cap be cross sectional shape be trapezoidal or rectangle or
Zigzag or triangle or semicircle or at least two parabola shaped axial notches.
Further, the leading portion axial seal that the leading portion sealed connection portion of the leading portion of the radial labyrinth formula sealing is equipped with
Portion is the annular projection extended axially forward by the leading portion portion of sealed connection, accordingly, the front end on the drive end bearing bracket of the end cap
Lid sealing is axial notch.
Further, the leading portion axial seal that the leading portion sealed connection portion of the leading portion of the radial labyrinth formula sealing is equipped with
Portion is that cross sectional shape is trapezoidal or rectangle or zigzag or triangle or semicircle or parabola shaped annular projection, accordingly,
Drive end bearing bracket sealing on the drive end bearing bracket of the end cap is that cross sectional shape is trapezoidal or rectangle or zigzag or triangle or semicircle
Shape or parabola shaped axial notch.
Further, the oil duct of connection external pipeline is equipped between the rear end cap and drive end bearing bracket.
The utility model includes following advantageous effect；
Due to the back segment axial sealing part and leading portion axial sealing part difference on the back segment and leading portion of the sealing of radial labyrinth formula
With on the rear end cap and drive end bearing bracket of end cap rear end cap sealing and drive end bearing bracket both seals assemble, angle sealing sealing is assemblied in
Between the back segment and leading portion of the sealing of radial labyrinth formula.Then, the sealing surface between the sealing of radial labyrinth formula and drive end bearing bracket is increased
Product, reduces the influence that wind turbine gearbox inside and outside differential pressure is brought（Siphonage）So that lubricating oil will not be along radial labyrinth formula
The back segment and leading portion of sealing, which direct out, to be thrown away, prevent ooze, oil leakage phenomenon.Thus, leakproofness preferably, safety and reliable
Property is higher.Meanwhile even if not by the sealing of radial labyrinth formula, radial clearance machining control between output shaft and end cap compared with
It is small, can also there are preferable sealing effect and higher reliability, safety.Thus, processing is easier, precision also compares appearance
Easily ensure.Furthermore it is possible to which the back segment elastic conjunction in first sealing radial radial labyrinth formula is on output shaft, then by end cap
In rear end cap on the sealing of rear end cap sealing and radial labyrinth formula in back segment on the sealing of back segment axial sealing part assemble,
Then rear end cap is connect with middle case, later again by leading portion elastic conjunction on output shaft, and by the drive end bearing bracket on drive end bearing bracket
Sealing is assembled with the leading portion axial sealing part sealing on leading portion, finally again connect drive end bearing bracket with rear end cap.Thus, assembly ratio
More convenient to be easy, the precision of assembly is also guaranteed.Although due to matching for interference between output shaft and the sealing of radial labyrinth formula
It closes, but between the two without leakproofness, it is necessary to make to keep leakproofness between the two by angle sealing, and prevents lubricating oil from output
It is leaked outward between axis and radial radial labyrinth formula sealing, so when there is oil seepage phenomena between output shaft and labyrinth sealing
When, must just replace angle sealing, and due to angle sealing sealing be assemblied in radial labyrinth formula sealing back segment and leading portion between, as long as
The leading portion that radial labyrinth formula seals is removed, it will be able to angle sealing is replaced, thus also more convenient appearance is safeguarded in the replacement of angle sealing
Easily.
Description of the drawings
Fig. 1 is the schematic diagram of the output shaft seal structure of traditional wind turbine gearbox；
Fig. 2 is the structural schematic diagram of utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings；
It is shown in Figure 2, the wind turbine gearbox output shaft seal structure of the utility model, described in background technology
The wind turbine gearbox output shaft seal structure of the prior art is the same, also includes end cap, the raising middle flask axially connected successively from front to back
Body 30 and rear box 50, rear end are assemblied in the rear box bearing 51 of rear box 50, and preceding be partially supported upon is assemblied in middle case 30
Bearing in, front end stretch out in the output shaft 20 except the front end of end cap, radial seal is assemblied between end cap and output shaft 20
And sealed with the radial labyrinth formula of 20 elastic conjunction of output shaft, and extended and connected to middle case 30 close at periphery from end cap 10
The drainback passage 60 of go side lid and rear box 50, the radial labyrinth formula sealing includes back segment 41 and leading portion 42.From Figure 2 it can be seen that
Unlike the wind turbine gearbox output shaft seal structure of the prior art；The utility model further includes angle sealing 70, the diameter
It is equipped with to the back segment 41 of labyrinth sealing and portion 44 is tightly connected by the back segment that about middle part extends radially outwardly of the back segment 41
With at least two back segment axial sealing parts 45 being located in the back segment sealed connection portion 44, leading portion 42 is equipped with by the leading portion 42
The leading portion sealed connection portion 46 and the leading portion axial sealing part being located in the leading portion sealed connection portion 46 that rear end extends radially outwardly
47, the end cap is split structure, including the rear end cap 18 and drive end bearing bracket 19 that connect side by side, the rear end cap 18 be equipped with by
The about rear end cap sealed connection portion 14 that extends radially inwardly of middle part of the rear end cap 18 and being located at is tightly connected by the rear end cap
In portion 14 with the 45 matched rear end cap sealing 15 of back segment axial sealing part in back segment sealed connection portion 44, the front end
The rear end of lid 19 be equipped with the 47 matched drive end bearing bracket sealing 17 of leading portion axial sealing part in leading portion sealed connection portion 46,
Wherein, the back segment axial sealing part 45 on the back segment 41 and leading portion 42 of the sealing of radial labyrinth formula and leading portion axial sealing part 47 are distinguished
With on the rear end cap 18 and preceding drive end bearing bracket 19 of end cap rear end cap sealing 15 and drive end bearing bracket sealing 17 sealing assemble, angle sealing
70 sealings are assemblied between the back segment 41 and leading portion 42 of radial labyrinth formula sealing 40.So, the utility model increases diameter
Sealing area between labyrinth sealing and drive end bearing bracket 12 reduces the influence that wind turbine gearbox inside and outside differential pressure is brought（Siphon
Phenomenon）So that the back segment 41 and leading portion 42 that lubricating oil will not be sealed along radial labyrinth formula are directed out and are thrown away, and are prevented
It oozes, oil leakage phenomenon.Thus, leakproofness is preferable, safety and reliability is higher.Meanwhile even if do not seal radial labyrinth formula,
Radial clearance machining control between output shaft 20 and end cap obtains smaller, can also there is preferable sealing effect and higher reliable
Property, safety.Thus, processing is easier, precision is also easier to ensure.Furthermore it is possible to which radial labyrinth formula is sealed first
In 41 elastic conjunction of back segment on output shaft 20, then by the rear end cap 18 in end cap rear end cap sealing 15 with it is radial
The sealing assembly of back segment axial sealing part 45 on back segment 41 in labyrinth sealing, then connects rear end cap 18 and middle case 30
It connects, later again by 42 elastic conjunction of leading portion on output shaft 20, and by the drive end bearing bracket sealing 17 and leading portion 42 on drive end bearing bracket 19
On leading portion axial sealing part 47 sealing assembly, finally drive end bearing bracket 19 is connect with rear end cap 18 again.Thus, assembly is more convenient
It is easy, the precision of assembly is also guaranteed.Although due to being interference fit between output shaft 20 and the sealing of radial labyrinth formula,
It is between the two without leakproofness, it is necessary to make to keep leakproofness between the two by angle sealing 70, and prevent lubricating oil from output shaft
It is leaked outward between 20 and radial radial labyrinth formula sealing, so when there is oil seepage phenomena between output shaft and labyrinth sealing
When, angle sealing 70 must be just replaced, and since sealing 70 sealing in angle is assemblied in the back segment 41 and leading portion 42 of radial labyrinth formula sealing
Between, as long as the leading portion 42 that radial labyrinth formula seals is removed, it will be able to replace angle sealing 70, thus the replacement dimension of angle sealing 70
Shield is also more convenient to be easy.
Referring to Fig. 2, the back segment axial sealing part 45 on the back segment 41 of the radial labyrinth formula sealing is to be sealed to connect by back segment
At least two annular projections that 44 axial spacing of socket part extends forward are accordingly located at rear end on the rear end cap 18 of the end cap
Rear end cap sealing 15 in lid sealed connection portion 14 is at least two axial notches.This makes the back segment that radial labyrinth formula seals
Back segment axial sealing part 45 and the sealing in the rear end cap sealed connection portion 14 of the rear end cap 18 of end cap on 41 assemble area bigger
And sealing effect is more preferable, so that the overall effect of the utility model is more preferable.
Referring to Fig. 2, the back segment axial sealing part in the back segment sealed connection portion 44 of the back segment 41 of the radial labyrinth formula sealing
45 be cross sectional shape be trapezoidal at least two annular projections, and accordingly, the rear end cap sealing of the rear end cap 18 of the end cap connects
Rear end cap sealing 15 in socket part 14 is that cross sectional shape is trapezoidal at least two axial notches.This makes back segment axial seal
Portion 45 and rear end cap sealing 15 it is relatively simple for structure, processing is easier and sealing effect is also better.
Certainly, the back segment axial sealing part 45 in the back segment sealed connection portion 44 of the back segment 41 of the radial labyrinth formula sealing
Or cross sectional shape is also rectangle or zigzag or triangle or semicircle or at least two parabola shaped annular projections,
Accordingly, the rear end cap sealing 15 in the rear end cap sealed connection portion 14 of the rear end cap 18 of the end cap or section shape
Shape is rectangle or zigzag or triangle or semicircle or at least two parabola shaped axial notches.This is again such that back segment axis
To sealing 45 and rear end cap sealing 15 it is relatively simple for structure, processing is easier and sealing effect is also better.
Referring to Fig. 2, the leading portion that the leading portion sealed connection portion 46 of the leading portion 42 of the radial labyrinth formula sealing is equipped with is axial
Sealing 47 is to be tightly connected the annular projection that portion 46 extends axially forward by the leading portion, accordingly, the drive end bearing bracket of the end cap
Drive end bearing bracket sealing 17 on 19 is axial notch.This makes the leading portion axial seal on the leading portion 42 of radial labyrinth formula sealing 40
Area bigger is assembled in the sealing of portion 47 and the drive end bearing bracket sealing 17 on the drive end bearing bracket 19 of end cap and sealing effect is more preferable, to make
The overall effect for obtaining the utility model is more preferable.
Referring to Fig. 2, the leading portion that the leading portion sealed connection portion 46 of the leading portion 42 of the radial labyrinth formula sealing is equipped with is axial
Sealing 47 is that cross sectional shape is trapezoidal annular projection, accordingly, the drive end bearing bracket sealing on the drive end bearing bracket 19 of the end cap
17 be cross sectional shape be trapezoidal axial notch.This makes leading portion axial sealing part 47 and the structure of drive end bearing bracket sealing 17 compare
Simply, processing is easier and sealing effect is also better.
Certainly, the leading portion axial seal that the leading portion sealed connection portion 46 of the leading portion 42 of the radial labyrinth formula sealing is equipped with
Portion 47 or rectangle or zigzag or triangle or semicircle or parabola shaped annular projection, the drive end bearing bracket of the end cap
Drive end bearing bracket sealing 17 on 19 or rectangle or zigzag or triangle or semicircle or parabola shaped axial notch.
This make leading portion axial sealing part 47 and drive end bearing bracket sealing 17 it is relatively simple for structure, processing is easier and sealing effect
Better.
Referring to Fig. 2, the oil duct 80 of connection external pipeline 90 is equipped between the rear end cap 18 and drive end bearing bracket 19.Such one
Come, a small amount of lubricating oil can flow back to gear-box oil sump again by the oil duct 80 of external pipeline 90, do not flow back to gear-box directly, keep away
The direct collision for having exempted from inside and outside differential pressure plays preferable cushioning effect to the direct collision of inside and outside differential pressure.
Preferred embodiments of the present invention are elaborated above in conjunction with attached drawing, but the utility model is not
Be limited to the above embodiment, skilled artisan within the scope of knowledge, this reality can also not departed from
With under the premise of novel objective, various changes can be made.
Claims (6)
1. a kind of wind turbine gearbox output shaft seal structure, including axially connect successively from front to back end cap, middle case（30）
And rear box（50）, rear end is assemblied in rear box（50）Rear box bearing（51）In, preceding be partially supported upon is assemblied in middle case
（30）In middle case bearing in, front end stretch out in end cap（10）Front end except output shaft（20）, radial seal is assemblied in
End cap and output shaft（20）Between and and output shaft（20）The radial labyrinth formula of elastic conjunction seals（41,42）, and by end cap
（10）Close at periphery to middle case（30）Extend and is connected to end cap（10）And rear box（50）Drainback passage（60）, the diameter
Include back segment to labyrinth sealing（41）And leading portion（42）, it is characterised in that：It further include angle sealing（70）,
The back segment of the radial labyrinth formula sealing（41）It is equipped with by the back segment（41）About middle part extend radially outwardly after
Section sealed connection portion（44）Be located at the back segment sealed connection portion（44）On at least two back segment axial sealing parts（45）, leading portion
（42）It is equipped with by the leading portion（42）The leading portion sealed connection portion that extends radially outwardly of rear end（46）It is sealed with the leading portion is located at
Interconnecting piece（46）On leading portion axial sealing part（47）,
The end cap is split structure, including the rear end cap connected side by side（18）And drive end bearing bracket（19）, the rear end cap（18）
It is equipped with by the rear end cap（18）The rear end cap sealed connection portion that extends radially inwardly of about middle part（14）Be located at by after this
End cap seal interconnecting piece（14）On with back segment sealed connection portion（44）On back segment axial sealing part（45）Matched rear end
Lid sealing（15）, the drive end bearing bracket（19）Rear end be equipped with and leading portion sealed connection portion（46）On leading portion axial sealing part
（47）Matched drive end bearing bracket sealing（17）,
Wherein, radial labyrinth formula seals（41,42）Back segment（41）And leading portion（42）On back segment axial sealing part（45）With it is preceding
Section axial sealing part（47）Respectively with the rear end cap of end cap（18）And drive end bearing bracket（19）On rear end cap sealing（15）The front end and
Lid sealing（17）Sealing assembly, angle sealing（70）Sealing is assemblied in the back segment of radial labyrinth formula sealing（41）And leading portion（42）It
Between.
2. wind turbine gearbox output shaft seal structure as described in claim 1, it is characterised in that：The radial labyrinth formula sealing
（41,42）Back segment（41）On back segment axial sealing part（45）To be tightly connected portion by back segment（44）Axial spacing extends forward
At least two annular projections, accordingly, the rear end cap of the end cap（18）On be located at rear end cap sealed connection portion（14）On
Rear end cap sealing（15）For at least two axial notches.
3. wind turbine gearbox output shaft seal structure as claimed in claim 2, it is characterised in that：The radial labyrinth formula sealing
Back segment（41）Back segment sealed connection portion（44）On back segment axial sealing part（45）For cross sectional shape be trapezoidal or rectangle or
Zigzag or triangle or semicircle or at least two parabola shaped annular projections, accordingly, the rear end cap of the end cap
（18）Rear end cap sealed connection portion（14）On rear end cap sealing（15）For cross sectional shape it is trapezoidal or rectangle or zigzag
Or triangle or semicircle or at least two parabola shaped axial notches.
4. wind turbine gearbox output shaft seal structure as claimed in claim 3, it is characterised in that：The radial labyrinth formula sealing
（41,42）Leading portion（42）Leading portion sealed connection portion（46）The leading portion axial sealing part being equipped with（47）To be sealed by the leading portion
Interconnecting piece（46）The annular projection extended axially forward, accordingly, the drive end bearing bracket of the end cap（19）On drive end bearing bracket sealing
（17）For axial notch.
5. wind turbine gearbox output shaft seal structure as claimed in claim 4, it is characterised in that：The radial labyrinth formula sealing
（41,42）Leading portion（42）Leading portion sealed connection portion（46）The leading portion axial sealing part being equipped with（47）It is square for cross sectional shape
Shape or trapezoidal or zigzag or triangle or semicircle or parabola shaped annular projection, accordingly, the drive end bearing bracket of the end cap
（19）On drive end bearing bracket sealing（17）For cross sectional shape it is trapezoidal or rectangle or zigzag or triangle or semicircle or parabolic
Linear axial notch.
6. wind turbine gearbox output shaft seal structure as claimed in claim 5, it is characterised in that：The rear end cap（18）With it is preceding
End cap（19）Between be equipped with connection external pipeline 90 oil duct（80）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723415.7U CN207989701U (en) | 2017-12-12 | 2017-12-12 | A kind of wind turbine gearbox output shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721723415.7U CN207989701U (en) | 2017-12-12 | 2017-12-12 | A kind of wind turbine gearbox output shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989701U true CN207989701U (en) | 2018-10-19 |
Family
ID=63817654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721723415.7U Expired - Fee Related CN207989701U (en) | 2017-12-12 | 2017-12-12 | A kind of wind turbine gearbox output shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806505A (en) * | 2017-12-12 | 2018-03-16 | 重庆望江工业有限公司 | A kind of wind turbine gearbox output shaft seal structure |
-
2017
- 2017-12-12 CN CN201721723415.7U patent/CN207989701U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107806505A (en) * | 2017-12-12 | 2018-03-16 | 重庆望江工业有限公司 | A kind of wind turbine gearbox output shaft seal structure |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104508336B (en) | Sealing device | |
| CN105370890A (en) | Low-friction dynamic seal | |
| CN203214888U (en) | Seal device for reducer rotation shaft combination | |
| CN207989701U (en) | A kind of wind turbine gearbox output shaft seal structure | |
| CN105673817B (en) | A kind of wind turbine gearbox output shaft seal structure | |
| CN204372170U (en) | A kind of rubber seal improving radial structure | |
| CN209511113U (en) | A kind of differential oil sealing | |
| CN208955792U (en) | Sealing structure, shaft sealer and motor | |
| CN206268448U (en) | A kind of hub exterior seal ring anti-loose structure | |
| CN205173481U (en) | Hydraulic machinery | |
| CN104040228B (en) | Sealing device | |
| CN107806505A (en) | A kind of wind turbine gearbox output shaft seal structure | |
| CN202732713U (en) | Sealing ring for bearing | |
| CN205154917U (en) | A seal structure for bearing | |
| CN108591471A (en) | Bearing and sealing device | |
| CN205064595U (en) | A seal structure for bearing | |
| CN202125529U (en) | Cross shaft oil seal | |
| CN106168257A (en) | A kind of agricultural machine wheel hub bearing unit sealing device | |
| CN205991105U (en) | A kind of bearing sealed ring | |
| CN205823962U (en) | The bearing of part sealing structure in a kind of band | |
| CN205136607U (en) | Compact combined seal ring | |
| CN205315672U (en) | Axle head dust keeper of gearbox for rotary cultivator | |
| CN210509705U (en) | Bearing box seal structure | |
| CN204493643U (en) | A kind of worm gear of motor | |
| CN204140830U (en) | A kind of lower box with sealing configuration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20181212 |