CN104895726B - A kind of tidal power unit and its pitch variable bearings - Google Patents
A kind of tidal power unit and its pitch variable bearings Download PDFInfo
- Publication number
- CN104895726B CN104895726B CN201510382694.4A CN201510382694A CN104895726B CN 104895726 B CN104895726 B CN 104895726B CN 201510382694 A CN201510382694 A CN 201510382694A CN 104895726 B CN104895726 B CN 104895726B
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- Prior art keywords
- outer ring
- rolling element
- ring
- row
- tidal power
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
- F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
- F16C19/381—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with at least one row for radial load in combination with at least one row for axial load
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of tidal power unit and its pitch variable bearings, the pitch variable bearings include inner ring, outer ring and the rolling element between inner ring and outer ring, wherein：The inner ring is to be fixed with blade adpting flange on the gear ring with pitch gear, the gear ring front end face；The outer ring includes outer ring leading portion and outer ring back segment, and movable sealing structure is provided between outer ring leading portion and blade adpting flange；The small rolling element of row that the rolling element includes the two big rolling elements of row and is arranged between the big rolling element of two row, wherein the distance at the two big rolling element distance between bearing centers of row is equal, the distance at small rolling element distance between bearing center is more than the distance at big rolling element distance between bearing center.The tidal power set pitch control bearing volume of the present invention is smaller, bearing capacity is stronger, and under uneven loading action, will not topple displacement between the inside and outside circle of bearing, have the advantages that small volume, cost be low, good seal performance using the tidal power unit of the pitch variable bearings.
Description
Technical field
The present invention relates to tidal power machine set technology field, more particularly to a kind of tidal power unit and its change oar
Bearing.
Background technology
With going deep into for ocean development activity, tidal power technology is used widely.Tidal power unit needs
According to the subtended angle direction of high tide and the different adjustment blades of ebb tide operating mode, this is accomplished by a pitch variable bearings to connect tide
The wheel hub and blade of energy generating set.
Because the working environment of tidal power unit is lower 20 meters to 30 meters of seawater, therefore one kind can be directly exposed to sea
In water, the main design goal that the bearing of good seal performance is tidal power set pitch control bearing.
At present, four-point contact ball is used tidal power set pitch control bearing more, and four-point contact ball is in tool
Bigger volume, the wheel hub of corresponding tidal power unit and the volume of other associated components are needed when there are same load-carrying properties
It will increase, add the design cost of unit, at the same time, four-point contact ball is in the presence of unbalance loading, inside and outside circle meeting
It is difficult that compensation is toppled displacement to produce the sealing between very big displacement of toppling, inside and outside circle, will ultimately result in grease leakage or seawater
Enter in bearing cavity, cause the failure of tidal power set pitch control bearing.
As can be seen here, the tide energy that a kind of compact conformation, small volume, load are strong and sealing property is excellent how is founded
The tidal power unit of generating set pitch variable bearings and the application pitch variable bearings, real category current industry pole needs improved target.
The content of the invention
It is an object of the invention to provide a kind of tidal power set pitch control bearing, make its compact conformation, small volume, carrying
Property it is strong, and be not susceptible to displacement of toppling, sealing property is excellent, so as to overcome existing tidal power set pitch control bearing volume
Greatly, bearing capacity is small, easy displacement of toppling, the deficiency that sealing property is not good enough.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of tidal power set pitch control bearing, including inner ring, outer ring and the rolling between inner ring and outer ring
Body, wherein：The inner ring is to be fixed with blade adpting flange on the gear ring with pitch gear, the gear ring front end face；It is described
Outer ring includes outer ring leading portion and outer ring back segment, and movable sealing structure is provided between the outer ring leading portion and blade adpting flange；It is described
The small rolling element of row that rolling element includes the two big rolling elements of row and is arranged between the big rolling element of two row, wherein described two
The distance for arranging big rolling element distance between bearing center is equal, and the distance at the small rolling element distance between bearing center is more than big rolling element distance between bearing
The distance at center.
Further, the big rolling element of the first row is located in the raceway that the outer ring leading portion is cooperatively formed with gear ring, the
The two big rolling elements of row are located in the raceway that the outer ring back segment is cooperatively formed with gear ring, and a small rolling element of row is located at behind the outer ring
In the raceway that section is cooperatively formed with gear ring.
Further, the outer ring be provided be used for into bearing bore body lead to oil pipeline, the pipeline include be used for into
Oil upper oil circuit and for fuel-displaced lower oil circuit, wherein, the input port of upper oil circuit is led to where the big rolling element of the first row
Raceway, the raceway where the delivery outlet from the big rolling element of the secondary series of lower oil circuit is drawn.
Further, the movable sealing structure includes the multiple-sealed circle set gradually from front to back, wherein most front side
First of sealing ring is closest to seawater.
Further, the movable sealing structure includes the first, second and third road lip-type packing set gradually from front to back,
C mouthfuls of wherein first and second road lip-type packing is waterproof grommet forward；3rd C mouthfuls of road lip-type packing is grease proofing close backwards
Seal.
Further, the front end of first of sealing ring is fastened with annular pressing plate.
Further, the blade adpting flange is provided with the seawater communicated with the sealing surface of first of sealing ring and let out
Dew alarm hole.
Further, dust excluder lips are provided between the inner face of the gear ring rear end face and the outer ring back segment.
Present invention also offers the tidal power unit using above-mentioned pitch variable bearings, adopt the following technical scheme that：
A kind of tidal power unit, including described pitch variable bearings.
A kind of tidal power unit, including described pitch variable bearings, in addition to pressure-sensitive cylinder, the seawater leakage alarm hole
It is connected by pipeline with the pressure-sensitive cylinder.
Due to using above-mentioned technical proposal, the present invention at least has advantages below：
(1) tidal power set pitch control bearing of the invention uses the form of specific three row rolling element, ensure that
There is very big bearing capacity under the appearance and size of very little, volume is smaller, and bearing capacity is stronger, and reduce whole tidal power
The design cost of unit.Also, under uneven loading action, will not topple displacement between the inside and outside circle of bearing, can effectively ensure that
The sealing property of bearing.
(2) double oil circuit designs, ensure that each row raceway can be lubricated well, it is ensured that the use longevity of bearing
Life.
(3) movable sealing structure that seawater side is formed using multiple-sealed circle, it is preferred to use three road lip-shaped sealed rings, it is anti-together
Oil, twice waterproof, good sealing effect, and sealing ring design for disassembly, it is easy to change.
(4) being provided with is used for the seawater leakage alarm hole for perceiving seawater leakage, breaks through first of sealing ring in seawater, enters
Alarm signal can be sent before bearing cavity in time, notifies attendant to be safeguarded, it is to avoid the generation of catastrophic failure.
(5) on the whole, tidal power set pitch control bearing of the invention solves all features for becoming oar under water
It is required that, extra large underwater environment can be adapted to completely.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is the pitch variable bearings structural representation of tidal power unit of the present invention.
Fig. 2 be tidal power unit of the present invention pitch variable bearings by AA in Fig. 1 to sectional view.
Fig. 3 is the enlarged drawing in I portions in Fig. 2.
Fig. 4 be tidal power unit of the present invention pitch variable bearings by BB in Fig. 1 to sectional view.
Fig. 5 is the enlarged drawing in II portions in Fig. 4.
Embodiment
The invention provides the tidal power machine of a kind of tidal power set pitch control bearing and the application pitch variable bearings
Group.Refer to shown in Fig. 1,2,4, the pitch variable bearings include inner ring, outer ring and the rolling between inner ring and outer ring
Body.
Wherein, the inner ring is the gear ring 3 with pitch gear 3-1.The front end face of gear ring 3 is provided with blade link bolt hole
3-2, for fixing blade adpting flange 4, is provided with dust excluder lips 9 between the rear end face of gear ring 3 and the inner face of outer ring back segment 1.
The outer ring includes outer ring leading portion 2 and outer ring back segment 1, is provided between the outer ring leading portion 2 and blade adpting flange 4
Movable sealing structure.The movable sealing structure includes the multiple-sealed circle set gradually from front to back, wherein most first of front side
Sealing ring is closest to seawater.
The small rolling of row that the rolling element includes the two big rolling elements 6 of row and is arranged between the big rolling element 6 of two row
Kinetoplast 7, wherein the distance at the big distance between bearing center of rolling element 6 of two row is equal, the distance at the small distance between bearing center of rolling element 7
More than the distance at the big distance between bearing center of rolling element 6.
Rolling element can use roller, and each row rolling element is placed in outer ring and inner ring and worked in coordination in the raceway to be formed.
Specifically, as shown in Figure 2, the big rolling element 6 of first row can be set and is located at the rolling that outer ring leading portion 2 is cooperatively formed with gear ring 3
In road, the big rolling element 6 of secondary series is located in the raceway that the outer ring back segment 1 is cooperatively formed with gear ring 3, a small rolling element 7 of row
In in the raceway that the outer ring back segment 1 and gear ring 3 are cooperatively formed.
Using the form of above-mentioned three row roller, ensure that has very big bearing capacity, body under the appearance and size of very little
Product is smaller, and bearing capacity is stronger, and reduces the design cost of whole tidal power unit.In addition, under uneven loading action, becoming oar
Will not topple displacement between the inside and outside circle of bearing, can effectively ensure that the sealing property of bearing, adapt to building ring under seawater
Border.
To ensure that each row raceway can be lubricated well, being provided with outer ring is used into bearing bore body lead to oil
Pipeline, specifically, as shown in Figure 2, the pipeline is included for the upper oil circuit of oil-feed and for fuel-displaced lower oil circuit, its
In, the raceway that the input port of upper oil circuit is led to where the big rolling element 6 of the first row, the delivery outlet of lower oil circuit is from the secondary series
Raceway where big rolling element 6 is drawn.Wherein, oil circuit 1-1, lower oil circuit 1-2 etc. are offered in outer ring back segment 1, before outer ring
Oil circuit 2-1 etc. is offered in section 2, so that having on outer ring leading portion 2 has 3 upper oil holes and 3 on 1 upper oil hole, outer ring back segment 1
Lower oilhole, will correspondence oilhole concentric alignment during assembling.Grease is all injected in upper oil circuit and lower oil circuit during initial installation, is run
When, automatic lubricating system is installed in upper oil circuit, lower oil circuit installs waste oil collector, forms an oil circulation.
Please refer to shown in Fig. 3,5, movable sealing structure shown in figure is first, second and third set gradually from front to back
Road lip-type packing 8, wherein the C mouths of first and second road lip-type packing 8 are forward, it is waterproof grommet；3rd road lip-type packing
8 C mouths are grease proofing sealing ring backwards.Annular pressing plate 5 is fastened with the front end of first of lip-type packing 8, annular pressing plate 5 leads to
Lock-screw 5-1 is crossed to be fixed on outer ring leading portion 2.Bearing inside cavity grease can effectively be prevented by being realized by above-mentioned setting
Overflow, can effectively prevent extraneous seawater from leaking into bearing cavity again.
The movable sealing structure is positioned close to seawater side, that is, is assemblied between outer ring leading portion 2 and blade adpting flange 4.
Further, the seawater leakage report communicated with the sealing surface of first of sealing ring is opened up on the blade adpting flange 4
Alert hole 4-1.During assembling, seawater leakage alarm hole 4-1 is connected by pipeline with the pressure-sensitive cylinder of tidal power unit complete machine, such as
This, when seawater, which breaks through first of lip-type packing 8, enters seawater leakage alarm hole 4-1, alarm signal can be sent in time, is led to
Know that attendant is safeguarded, it is to avoid the generation of catastrophic failure.
During implementation, during assembling tidal power set pitch control bearing, it must carry out in accordance with the following steps：
(1) outer ring back segment 1 is lain in a horizontal plane on mounting plate, then single-row big rolling element 6 and one is arranged into small rolling element 7 and put
Put in the raceway of outer ring back segment 1, it is ensured that raceway is without debris such as metal iron filings.
(2) gear ring 3 is lain in a horizontal plane on single-row big rolling element 6 and in the inner circle of a small rolling element 7 of row, then in gear ring again
Another big rolling element 6 of row is placed on 3 upper raceway, the cleaning of raceway must be kept, upper outer ring leading portion 2 is finally pressed.
(3) blade adpting flange 4 is installed on gear ring 3, it is necessary to assure blade adpting flange 4 concentric will be matched somebody with somebody with gear ring 3
Close.
(4) lip of lip-type packing 8 is smeared into a small amount of lubricating grease, " C " mouth is installed to outer ring leading portion 2 towards gear side
Sealing ring mounting groove in, using same process method, another lip-type packing 8 is adjacent to the lip-type packing 8 and is installed to
In the sealing ring mounting groove of outer ring leading portion 2, " C " mouth installs one again back to the lip-type packing 8 formerly installed using same process
Bar lip-type packing 8, the same lip-type packing 8 installed back to first time in " C " mouth direction, then covers annular pressing plate 5, it is ensured that
Annular pressing plate 5 uniformly pushes down lip-type packing 8, screws lock-screw 5-1.
(5) dust ring 9 is installed to the dust excluder lips mounting groove of gear ring 3, it is ensured that dust ring 9 and the inner circle end face of outer ring back segment 1
No-float.
(6) after installing, foregoing upper oil circuit (oil circuit 2-1 on oil circuit 1-1 on the back segment of outer ring in Fig. 2, outer ring leading portion is passed through
Deng 3 upper oil circuits) and lower oil circuit (3 lower oil circuits such as oil circuit 1-2 under the back segment of outer ring in Fig. 2) grease is injected into bearing bore body,
Can be by bearing inside cavity perfect lubrication by the upper and lower oil circuit of bearing, it is ensured that bearing service life.
During implementation, when tidal power set pitch control bearing and unit are assembled, carried out by following requirement：
(1) automatic lubricating system of unit will be connected with the oil line pipe set on outer ring.
(2) the seawater leakage alarm hole 4-1 on blade adpting flange 4 can be connected with the pressure-sensitive cylinder in complete machine by pipeline,
When seawater breaks through first of lip-type packing 8, seawater can be flowed into the pressure-sensitive of complete machine by seawater alarm hole 4-1 by pipeline
Cylinder, pressure-sensitive cylinder has seawater injection to send alarm signal, notifies field maintenance person to change sealing ring, it is to avoid seawater is leaked into
Bearing cavity.
As a result of above technical scheme, using the tidal power unit of above-mentioned pitch variable bearings, small volume, sealing
Can be good, and seawater leakage alarm can be realized.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (8)
1. a kind of tidal power set pitch control bearing, it is characterised in that including inner ring, outer ring and located at inner ring and outer ring
Between rolling element, wherein：
The inner ring is to be fixed with blade adpting flange on the gear ring with pitch gear, the gear ring front end face；
The outer ring includes outer ring leading portion and outer ring back segment, and dynamic sealing knot is provided between the outer ring leading portion and blade adpting flange
Structure；
The small rolling element of row that the rolling element includes the two big rolling elements of row and is arranged between the big rolling element of two row, its
Described in the two big rolling element distance between bearing centers of row distance it is equal, the distance at the small rolling element distance between bearing center is more than big rolling
The distance at body distance between bearing center；
A row in the big rolling element of two row are located in the raceway that the outer ring leading portion is cooperatively formed with gear ring, and another row are located at
In the raceway that the outer ring back segment is cooperatively formed with gear ring, a small rolling element of row is cooperatively formed positioned at the outer ring back segment with gear ring
Raceway in；
The outer ring is provided with the pipeline for being used for leading to oil into bearing bore body, and the pipeline includes the upper oil circuit and use for oil-feed
In fuel-displaced lower oil circuit, wherein, the raceway that the outer ring leading portion is cooperatively formed with gear ring, lower oil circuit are led in the input port of upper oil circuit
The raceway that is cooperatively formed from the outer ring back segment and gear ring of delivery outlet draw.
2. a kind of tidal power set pitch control bearing according to claim 1, it is characterised in that the movable sealing structure
Including the multiple-sealed circle set gradually from front to back, wherein most first of sealing ring of front side is closest to seawater.
3. a kind of tidal power set pitch control bearing according to claim 2, it is characterised in that the movable sealing structure
Including the first, second and third road lip-type packing set gradually from front to back, wherein C mouthfuls of first and second road lip-type packing is forward,
For waterproof grommet；3rd C mouthfuls of road lip-type packing is grease proofing sealing ring backwards.
4. a kind of tidal power set pitch control bearing according to claim 2, it is characterised in that first of sealing
The front end of circle is fastened with annular pressing plate.
5. a kind of tidal power set pitch control bearing according to claim 2, it is characterised in that the blade connection method
Orchid is provided with the seawater leakage alarm hole communicated with the sealing surface of first of sealing ring.
6. a kind of tidal power set pitch control bearing according to claim 1, it is characterised in that the gear ring rear end face
Dust excluder lips are provided between the inner face of the outer ring back segment.
7. a kind of tidal power unit, it is characterised in that including the pitch variable bearings any one of claim 1-6.
8. a kind of tidal power unit, it is characterised in that including the pitch variable bearings described in claim 5, in addition to pressure-sensitive cylinder,
The seawater leakage alarm hole is connected by pipeline with the pressure-sensitive cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510382694.4A CN104895726B (en) | 2015-07-02 | 2015-07-02 | A kind of tidal power unit and its pitch variable bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510382694.4A CN104895726B (en) | 2015-07-02 | 2015-07-02 | A kind of tidal power unit and its pitch variable bearings |
Publications (2)
| Publication Number | Publication Date |
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| CN104895726A CN104895726A (en) | 2015-09-09 |
| CN104895726B true CN104895726B (en) | 2017-10-27 |
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| CN201510382694.4A Active CN104895726B (en) | 2015-07-02 | 2015-07-02 | A kind of tidal power unit and its pitch variable bearings |
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| CN (1) | CN104895726B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465288A (en) * | 2016-01-07 | 2016-04-06 | 刘朝龙 | Planet speed reducing mechanism |
| CN105465285A (en) * | 2016-01-07 | 2016-04-06 | 刘朝龙 | Small-sized planetary reducing mechanism |
| CN105465286A (en) * | 2016-01-07 | 2016-04-06 | 刘朝龙 | Planetary reducer |
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| CN103062226B (en) * | 2012-12-28 | 2015-01-14 | 上海联合滚动轴承有限公司 | Seal structure for wind power bearing manufacture |
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| CN101568735A (en) * | 2006-12-18 | 2009-10-28 | 维斯塔斯风力系统有限公司 | A bearing and method for transferring forces through a bearing of a wind turbine |
| CN201396235Y (en) * | 2008-12-15 | 2010-02-03 | 湖南山立水电设备制造有限公司 | Vertical-type hydraulic generator elastic supporting thrust bearing |
| CN201582035U (en) * | 2009-11-13 | 2010-09-15 | 天津市天发重型水电设备制造有限公司 | Improvement structure of guide bearing pressing plate of hydraulic generator set |
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Also Published As
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| CN104895726A (en) | 2015-09-09 |
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Inventor after: Chu Jingchun Inventor after: Hu Xuesong Inventor after: Dong Li Inventor after: Li Yingchang Inventor after: Li Minghui Inventor before: Hu Xuesong Inventor before: Dong Li Inventor before: Li Yingchang Inventor before: Li Minghui |
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