CN207795864U - A kind of plugging structure of wind power yawing bearing plug hole - Google Patents
A kind of plugging structure of wind power yawing bearing plug hole Download PDFInfo
- Publication number
- CN207795864U CN207795864U CN201721695403.8U CN201721695403U CN207795864U CN 207795864 U CN207795864 U CN 207795864U CN 201721695403 U CN201721695403 U CN 201721695403U CN 207795864 U CN207795864 U CN 207795864U
- Authority
- CN
- China
- Prior art keywords
- plug
- wind power
- bearing
- seal groove
- plug hole
- 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.)
- Active
Links
Landscapes
- Wind Motors (AREA)
Abstract
The utility model discloses a kind of plugging structures of wind power yawing bearing plug hole, it include the wind power yawing bearing being made of bearing outer ring, bearing inner race, rolling element and retainer, it is provided with plug hole on bearing inner race, plug is fitted in plug hole, taper pin-hole is provided on plug；Plug is in cylinder, the second seal groove of the first seal groove and annular of annular is provided on the periphery of plug, first seal groove and the second seal groove are located at the left and right sides of taper pin-hole, and the first sealing ring and the second sealing ring are correspondingly arranged on respectively in the first seal groove and the second seal groove.
Description
Technical field
The utility model belongs to technical field of bearings, and in particular to a kind of plugging structure of wind power yawing bearing plug hole.
Background technology
Wind power yawing bearing is one of essential parts of wind power generating set.Bearing is used in yaw system, and one
Aspect ensures to cooperate with the control system of wind power generating set, and the wind wheel of wind power generating set is made to be in shape windward always
State makes full use of wind energy, improves the generating efficiency of wind power generating set；On the other hand it is to provide necessary locking torque, to protect
Hinder the safe operation of wind power generating set.For avoid wind power generating set generated in During yaw excessive vibration cause it is whole
The resonance of machine, bearing must have suitable damping torque in set yaw, this proposes the internal structure of yaw bearing
Higher requirement.
Usual wind power yawing design bearing has plug hole, and steel ball and spacing block are installed into bearing internal external circle by plug hole
In raceway, plug hole is then blocked by plug.Due to being clearance fit between the plug and plug hole of conventional structure, in raceway
Lubricating grease understand some and leaked from the gap, this not only results in environmental pollution, and grease is to plug and plug hole
Lubricating action is played, under bear vibration, percussion, plug can be caused to loosen, the hidden danger that falls off.And made due to wind turbine
Can at sea or moist area of heavy rainfull uses with environment, rainwater or steam can enter axis by the gap between plug and plug hole
Hold inside, bearing made internal corrosion situation occur, seriously affect bearing normal operation use, influence bearing service life and
Reliability.
Invention content
It is to propose a kind of envelope of wind power yawing bearing plug hole to overcome above-mentioned technical problem, the purpose of this utility model
Bridging structure.
In order to achieve the above-mentioned object of the invention, the utility model uses technical solution as described below：
A kind of plugging structure of wind power yawing bearing plug hole, including by bearing outer ring, bearing inner race, rolling element and holding
The wind power yawing bearing of device composition, plug hole is provided on bearing inner race, plug is fitted in plug hole, is provided on plug
Taper pin-hole；Plug is in cylinder, and the second seal groove of the first seal groove and annular of annular is provided on the periphery of plug, the
One seal groove and the second seal groove are located at the left and right sides of taper pin-hole, are corresponded to respectively in the first seal groove and the second seal groove
It is provided with the first sealing ring and the second sealing ring.
Further, the plug and plug hole are clearance fit.
Further, it is mounted between the first sealing ring on plug, the second sealing ring and plug hole as interference fit.
Further, the section of first sealing ring and the second sealing ring is rounded.
Further, the groove face of first seal groove and the second seal groove is square.
Further, it is provided with external tooth on the outer circumference surface of the bearing outer ring.
Further, it is provided with the gear oil groove of annular on the side of the first sealing ring and the second sealing ring, and keeps off oil
The internal diameter of slot is more than the diameter of plug.
Due to the adoption of the above technical scheme, the utility model has following superiority：
The utility model is increased first close between plug hole and plug by carrying out structure improvement to plug
Seal and the second sealing ring so that the environment for effectively having completely cut off Bearing outer and Bearing inner plays good sealing function,
The service life of wind power yawing bearing can be greatly improved.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of plug in the utility model；
In figure：1, bearing outer ring；2, rolling element；3, bearing inner race；4, taper pin-hole；5, plug；6, the first seal groove；7,
One sealing ring；8, the second seal groove；9, the second sealing ring；10, external tooth.
Specific implementation mode
The technical solution of the utility model is described in further detail with reference to the accompanying drawings and embodiments.
As shown in Figure 1, 2, a kind of plugging structure of wind power yawing bearing plug hole, including by bearing outer ring 1, bearing inner race
3, the wind power yawing bearing of rolling element 2 and retainer composition, plug hole is provided on bearing inner race 3, is fitted in plug hole
Plug 5 is provided with taper pin-hole 4 on plug 5；Plug 5 is in cylinder, and the first sealing of annular is provided on the periphery of plug 5
Second seal groove 8 of slot 6 and annular, the first seal groove 6 and the second seal groove 8 are located at the left and right sides of taper pin-hole 4, and first
It is correspondingly arranged on the first sealing ring and the second sealing ring respectively in seal groove 6 and the second seal groove 8.
The plug 5 is clearance fit with plug hole.
The first sealing ring 7, the second sealing ring 9 on plug 5 and between plug hole for interference fit.
The section of first sealing ring, 7 and second sealing ring 9 is rounded.
The groove face of first seal groove, 6 and second seal groove 8 is square.
External tooth 10 is provided on the outer circumference surface of bearing outer ring 1.
As the preferred of the present embodiment, the gear oil of annular is provided on the side of the first sealing ring and the second sealing ring
Slot, and the internal diameter for keeping off oil groove is more than the diameter of plug.
When having lubricating oil between the plug and plug hole, lubricating oil can flow into gear oil groove, prevent from leaking outside.
The utility model is increased first close between plug hole and plug by carrying out structure improvement to plug
Seal and the second sealing ring so that the environment for effectively having completely cut off Bearing outer and Bearing inner plays good sealing function,
The service life of wind power yawing bearing can be greatly improved.
Claims (7)
1. a kind of plugging structure of wind power yawing bearing plug hole, including by bearing outer ring, bearing inner race, rolling element and retainer
The wind power yawing bearing of composition is provided with plug hole on bearing inner race, and plug is fitted in plug hole, cone is provided on plug
Pin hole；It is characterized in that：Plug is in cylinder, and the first seal groove and annular second of annular is provided on the periphery of plug
Seal groove, the first seal groove and the second seal groove are located at the left and right sides of taper pin-hole, the first seal groove and the second seal groove
It is inside correspondingly arranged on the first sealing ring and the second sealing ring respectively.
2. the plugging structure of wind power yawing bearing plug hole according to claim 1, it is characterised in that：The plug and plug
Sub-aperture is clearance fit.
3. the plugging structure of wind power yawing bearing plug hole according to claim 2, it is characterised in that：On plug
The first sealing ring, between the second sealing ring and plug hole be interference fit.
4. the plugging structure of wind power yawing bearing plug hole according to claim 1, it is characterised in that：First sealing
The section of circle and the second sealing ring is rounded.
5. the plugging structure of wind power yawing bearing plug hole according to claim 3, it is characterised in that：First sealing
The groove face of slot and the second seal groove is square.
6. the plugging structure of wind power yawing bearing plug hole according to claim 1, it is characterised in that：The bearing outer ring
Outer circumference surface on be provided with external tooth.
7. the plugging structure of wind power yawing bearing plug hole according to claim 1, it is characterised in that：In the first sealing ring
It is more than the diameter of plug with the internal diameter for being provided with the gear oil groove of annular on the side of the second sealing ring, and keeping off oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695403.8U CN207795864U (en) | 2017-12-08 | 2017-12-08 | A kind of plugging structure of wind power yawing bearing plug hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721695403.8U CN207795864U (en) | 2017-12-08 | 2017-12-08 | A kind of plugging structure of wind power yawing bearing plug hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795864U true CN207795864U (en) | 2018-08-31 |
Family
ID=63282912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721695403.8U Active CN207795864U (en) | 2017-12-08 | 2017-12-08 | A kind of plugging structure of wind power yawing bearing plug hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795864U (en) |
-
2017
- 2017-12-08 CN CN201721695403.8U patent/CN207795864U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201475162U (en) | Special bearing for yaw system of megawatt wind turbine | |
| JP5606972B2 (en) | Slewing bearing seal structure and slewing bearing | |
| CN201487047U (en) | Special bearing for megawatt wind turbine impeller system | |
| CN204458510U (en) | Blower fan | |
| CN106979237A (en) | A kind of Leakproof shaft bearing | |
| CN207795864U (en) | A kind of plugging structure of wind power yawing bearing plug hole | |
| CN204878343U (en) | Short cylindrical roller bearing of full dress | |
| CN206563037U (en) | A kind of new many lip wind-powered turntable bearing sealing rings | |
| CN201202816Y (en) | Mechanical sealing device of rotating shaft | |
| CN201125959Y (en) | Special sealing structure of wind electric changeable paddle system bearing | |
| CN204900524U (en) | Biserial cylindrical roller bearing | |
| CN203067553U (en) | Grease leakage proof type wind power turntable bearing | |
| CN205937458U (en) | Double turntable bearing with footpath ball | |
| CN207989705U (en) | It is association of activity and inertia in wind power speed-increasing gearbox the slip ring structure of portion's lubricant passage way | |
| CN204805323U (en) | Outer spherical bearing of square hole area jackscrew | |
| CN101586597B (en) | Ball bearing | |
| CN209800550U (en) | Annular double-labyrinth multi-lip spring energy storage sealing device for wind power main bearing | |
| CN207864439U (en) | A kind of wear-resisting type needle bearing | |
| CN203962946U (en) | A kind of rotation axis seal structure of gear-box | |
| CN201651051U (en) | Composite rolling bearing | |
| CN205663780U (en) | Bearing systems | |
| CN210393520U (en) | Slewing bearing for crane | |
| CN207795865U (en) | A kind of locking device of bearing taper pin | |
| CN219672778U (en) | Yaw bearing assembly of wind driven generator and wind driven generator | |
| CN202360725U (en) | Sealing structure for wind turbine gearbox |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |