CN108374770A - A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment - Google Patents
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment Download PDFInfo
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- CN108374770A CN108374770A CN201810183251.6A CN201810183251A CN108374770A CN 108374770 A CN108374770 A CN 108374770A CN 201810183251 A CN201810183251 A CN 201810183251A CN 108374770 A CN108374770 A CN 108374770A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/70—Bearing or lubricating arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment belongs to technical field of wind power generation, pass through the wide arc gap air film between air supporting plate in the aerostatic bearing and air supporting set, it realizes the non-contact support and guiding of rotating part and fixed part in wind-power electricity generation, can get the high-energy conversion efficiency in the long-term work service life and extremely low energy loss of extremely low abrasion.At the same time, by to static air pressure vertical direction air bearing surface asymmetric arrangement, under the premise of ensureing kinematic accuracy, improve the bearing capacity and work rigidity of air bearing, and use air as working media, with simple in structure, kinematic accuracy is high, fretting wear is extremely low and advantages of environment protection.
Description
Technical field
The invention belongs to wind power generation fields, relate generally to a kind of efficient asymmetric sky for vertical wind power generation equipment
Aerostatic bearing.
Background technology
As continuing on for the non-renewable energy resources such as coal, oil is also brought other than the limited limitation of resource itself
Serious problem of environmental pollution.Therefore, become not for the reproducible clean energy resource of representative with wind energy, water energy and solar energy etc.
Carry out the Main way of energy development.The features such as wind power generation industry is renewable with its, pollution-free is fostered energetically by country.
Wind turbine equipment is the device for converting wind energy into electric energy, mainly by blade, generator, mechanical part and electric component group
At.In wind power plant, for realizing the contact bearing of support and motion guide, serious abrasion is brought at work
And energy loss, the energy utilization rate of wind power plant is limited, and stablize long-term work as wind power plant
Key link.
In current wind power plant, rolling bearing is mostly used, it is real by the combination of the form and quantity of rolling bearing
The normal work of existing equipment.A kind of direct drive wind turbine and bearing arrangement are referred in patent CN102439302A, are passed through
Self-aligning and non-aligning antifriction bearing realize that the radial support and rotary motion of wind mill rotor and generator are oriented to, to prevent from sending out
Gap between the stator and rotor of motor is uneven.Patent CN206234260U refers to a kind of wind-power electricity generation bearing, by
The double-row balls communicated by oil pocket are arranged in bearing outer ring and bearing inner race, can reduce the frequency that lubricating oil is added to bearing, extend
Bearing service life.The rotor bearing for wind power plant involved in patent CN103477100A, in relevant connection
The raceway of at least one rolling element row is configured in the separated raceway rings of ring, which passes through at least one elasticity
And/or the device for the element being elastically compressed, it is pressed off from relevant coupling ring on the direction vertical with conjunction plane.By this
Method can avoid the abrading type abrasion of rolling element.A kind of wind-power electricity generation bearing, bearing assembly packet involved in patent CN1668846A
It includes one to be fixed on a bracket component relative to rotor axis in a manner of being not subject to torque, and coaxial with rotor axis
The first axle carrier ring of setting and one are also coaxially disposed with rotor axis, but in a rotatable way relative to rotor axis
The second bearing ring for being supported on first axle carrier ring, and being fixed in rotor hub.Bearing service life can be improved in which.
The three freedom degree mixed magnetic bearing for horizontal axis wind generating in patent CN105570299A, to solve existing magnetic bearing
In support compared with greater trochanter or load excessive, and axially and radially all there is the case where compared with large disturbances and load.Patent
A kind of sliding bearing for wind power plant is referred in CN104234949A, by sliding bearing rotary motion startup
It runs to stage hydrostatic, and is hydrodynamically run with the stage of constant rotary speed rotary motion, to reduce
Bearing wear.Vertical shaft windmill bearing and vertical shaft-type wind power generation device in patent CN103958910A, around along vertical
Windmill from histogram to the center axis rotation of extension, along the central shaft arrangement and the axis body that is connect with the windmill, via axis
It holds and supports axis body as can be around the supporting mass of the center axis rotation；By the generator that the rotation of the axis body generates electricity,
It is small to provide a kind of torque resistance, bearing can be made swimmingly to rotate to improve generating efficiency.But the axis of above-mentioned wind-power electricity generation
It is contact bearing to hold, and in long-term rotary motion, in addition to bringing the serious friction of bearing to wear, is also resulted in by contacting
The larger energy loss that formula mechanical friction is brought so that plant capacity utilization rate is not high, limits the hair of wind power industry
Exhibition.
Invention content
In view of the above-mentioned deficiencies in the prior art, the present invention provides a kind of for the efficient non-right of vertical wind power generation equipment
Claim air body hydrostatic bearing.By the wide arc gap air film between air supporting plate in the aerostatic bearing and air supporting set, wind is realized
The non-contact support and guiding of rotating part and fixed part, can get long-term work service life without abrasion and incapability in power power generation
Measure the high-energy conversion efficiency of loss.At the same time, by static air pressure vertical direction air bearing surface asymmetric arrangement,
Under the premise of ensureing kinematic accuracy, the task performance of air bearing is improved, there is simple in structure, kinematic accuracy height, friction mill
Damage extremely low and advantages of environment protection.
The object of the present invention is achieved like this：
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, structure include blade, shaft and
Pedestal, shaft are fixed on above air supporting plate, and air supporting plate and the air supporting set being arranged on pedestal constitute air-bearing, and air supporting plate passes through
The gas film suspending that the compressed air that the external world provides is formed covers inside in air supporting, and air supporting plate transmission shaft fixedly connected below, bill machine passes through
Shaft coupling is connected to transmission shaft, and generator is fixed on pedestal by generator fixing piece；Single line rings section is arranged in air supporting set top
Double torus knot discharge orifice is arranged in discharge orifice, air supporting set lower section, by air supporting cover above and below the throttle orifice asymmetric arrangement that is arranged,
Realize the vertical gravity compensation of air supporting plate and non-contact support, air supporting set is radial to be arranged single throttle orifice, realizes the radial direction of air supporting plate
Non-contact support；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, air supporting set top are arranged
Single line rings throttle orifice carries out air guide seal by upper envelope compression ring, and the double torus knot discharge orifice that air supporting set lower section is arranged passes through lower interior
Side seal compression ring and lower outer side seal compression ring carry out air guide seal, and air supporting set is radial to be arranged single throttle orifice by laterally sealing compression ring progress
Air guide seal；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, covers gentle kickboard by air supporting
Stainless steel making may be used in the air-bearing of composition, can also use nitrided steel, anodized aluminum alloy, ceramics and bronze
Manufacture, the throttle orifice aperture that air supporting puts on setting is 0.1-0.5mm, to realize the big bearer properties under big supply gas pressure；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, covers gentle kickboard by air supporting
The air-bearing of composition, for 0.6-1.5MPa, the air bearing surface flatness of air bearing is not less than the supply gas pressure used
0.002mm, surface roughness are not less than Ra0.2；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, covers gentle kickboard by air supporting
The air-bearing of composition, throttling form can be orifice restriction, or looping pit throttling, porous restriction and micro- battle array
Hole throttling form.
Compared with the rolling bearing in existing wind power plant, innovative point of the invention and it is particularly advantageous in that：
1, the long-term work service life of wind power plant is realized.In the present invention, air supporting plate and the air supporting being arranged on pedestal
Set composition air-bearing, air supporting plate cover inside by the extraneous gas film suspending for providing compressed air formation in air supporting, and air supporting is put on
Torus knot discharge orifice is arranged in side and lower section, by air supporting cover above and below the throttle orifice that is arranged arrange, realize that air supporting plate is vertical heavy
Force compensating and non-contact support, the radial setting throttle orifice of air supporting set, realize the radial non-contact support of air supporting plate；Pass through air supporting plate
The non-contact support of gentle empty boasting has been completely eliminated compared with existing wind-power electricity generation rolling bearing structure due to friction of motion
The abrasion brought so that wind power plant can keep original operating states for a long time, and then can obtain theoretical endless
Working life.This is one of innovative point and remarkable advantage of the present invention.
2, the high-energy utilization rate of wind power plant is realized to the maximum extent, while there is environmental-friendly characteristic.
In wind power plant, the energy consumption of wind-power electricity generation is mainly the fretting wear energy consumption of spring bearing.In this patent, air supporting plate and set
It sets the air supporting set on pedestal and constitutes air-bearing, air supporting plate is by the extraneous gas film suspending for providing compressed air formation in air supporting
Set is internal, compared with the mechanical friction of existing wind-power electricity generation rolling bearing, the bearing friction in the present invention, only and due to air
Minimum friction caused by viscosity, so it is negligible；At the same time, since the patent in the present invention uses air as work
Make medium, therefore, at work, working media can be discharged into the external world to bearing, will not bring the environment caused by leakage
Pollution is conducive to environmental protection.This be this programme innovative point and remarkable advantage two.
3, the bearing working characteristic of big bearing capacity and big rigidity.In the present invention, air supporting plate and the gas being arranged on pedestal
Empty boasting constitutes air-bearing, and single line rings throttle orifice is arranged in air supporting set top, and air supporting set lower section is arranged double torus knot discharge orifice, leads to
The throttle orifice asymmetric arrangement being arranged above and below air supporting set is crossed, the air supporting thrust of the vertical direction of generation is poor, for realizing
The gravity compensation of air supporting plate and its installation parts and external vertical load, the air supporting of the vertical direction of generation mutually balanced push away
Power, for realizing the big vertical stiffness of air-bearing.This is the innovative point and the three of remarkable advantage of the present invention.
Description of the drawings
The general structure schematic diagram of Fig. 1 present invention.
The Z-direction sectional view of Fig. 2 general structure schematic diagrams.
Air-bearing partial enlarged view in Fig. 3 general structure schematic diagram Z-direction sectional views.
It is numbered in figure：1-blade；2-shafts；3-air supporting sets；4-air supporting plates；5-pedestals；6-generators；7-connection
Axis device；8-transmission shafts；9-generator fixing pieces；10-above seal compression ring；11-side seal compression rings；12-times outer side seal compression rings；
Side seal compression ring in 13-times.
Specific implementation mode
Invention is further described in detail below in conjunction with the accompanying drawings：
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, structure include blade 1, shaft 2
With pedestal 5, shaft 2 is fixed on 4 top of air supporting plate, and air supporting plate 4 and the air supporting set 3 being arranged on pedestal 5 constitute air-bearing, gas
The gas film suspending that kickboard 4 is formed by the compressed air that the external world provides is inside air supporting set 3,4 transmission shaft fixedly connected below of air supporting plate
8, bill machine 6 is connected to transmission shaft 8 by shaft coupling 7, and generator 6 is fixed on pedestal 5 by generator fixing piece 9；Air supporting set 3
Single line rings throttle orifice is arranged in top, and double torus knot discharge orifice is arranged in 3 lower section of air supporting set, by being set above and below air supporting set 3
The throttle orifice asymmetric arrangement set realizes that 4 vertical gravity compensation of air supporting plate and non-contact support, the 3 radial setting of air supporting set are single
Throttle orifice realizes the radial non-contact support of air supporting plate 4；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, the 3 top setting of air supporting set
Single line rings throttle orifice air guide seal is carried out by upper envelope compression ring 10, the double torus knot discharge orifice that 3 lower section of air supporting set is arranged is logical
Side seal compression ring 13 and lower outer side seal compression ring 12 carry out air guide seal in crossing down, and the 3 radial single throttle orifice of setting of air supporting set passes through side
Air guide seal is carried out to envelope compression ring 11；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, by air supporting set 3 and air supporting
The air-bearing that plate 4 forms, may be used stainless steel making, can also use nitrided steel, anodized aluminum alloy, ceramics and blueness
Copper is made, and the throttle orifice aperture being arranged on air supporting set 3 is 0.1-0.5mm, to realize the big bearer properties under big supply gas pressure；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, by air supporting set 3 and air supporting
The air-bearing that plate 4 forms, for 0.6-1.5MPa, the air bearing surface flatness of air bearing is not less than the supply gas pressure used
0.002mm, surface roughness are not less than Ra0.2；
A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, by air supporting set 3 and air supporting
The air-bearing that plate 4 forms, throttling form can be orifice restriction, or looping pit throttling, porous restriction, Yi Jiwei
Battle array hole throttling form.
Claims (5)
1. a kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment, structure includes blade（1）, turn
Axis（2）And pedestal（5）, it is characterised in that：Shaft（2）It is fixed on air supporting plate（4）Top, air supporting plate（4）With setting in pedestal（5）
On air supporting set（3）Constitute air-bearing, air supporting plate（4）The gas film suspending that the compressed air provided by the external world is formed is in air supporting
Set（3）Inside, air supporting plate（4）Transmission shaft fixedly connected below（8）, generator（6）Pass through shaft coupling（7）It is connected to transmission shaft（8）, hair
Motor（6）Pass through generator fixing piece（9）It is fixed on pedestal（5）；Air supporting set（3）Single line rings throttle orifice, air supporting is arranged in top
Set（3）Double torus knot discharge orifice is arranged in lower section, passes through air supporting set（3）Above and below the asymmetric arrangement of throttle orifice that is arranged,
Realize air supporting plate（4）Vertical gravity compensation and non-contact support, air supporting set（3）It is radial that single throttle orifice is set, realize air supporting plate
（4）Radial non-contact support.
2. a kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment according to claim 1,
It is characterized in that：Air supporting set（3）The single line rings throttle orifice of top setting passes through upper envelope compression ring（10）Carry out air guide seal, air supporting
Set（3）The double torus knot discharge orifice of lower section setting passes through lower interior side seal compression ring（13）With lower outer side seal compression ring（12）It is close to carry out air guide
Envelope, air supporting set（3）It is radial that single throttle orifice is set by laterally sealing compression ring（11）Carry out air guide seal.
3. a kind of efficient asymmetric air for vertical wind power generation equipment according to claim 1 and claim 2
Body hydrostatic bearing, it is characterised in that：By air supporting set（3）Gentle kickboard（4）The air-bearing of composition, using stainless steel, nitrided steel,
Anodized aluminum alloy, ceramics or/and bronze manufacture, air supporting set（3）The throttle orifice aperture of upper setting is 0.1-0.5mm, with reality
The now big bearer properties under big supply gas pressure.
4. a kind of efficient asymmetric air for vertical wind power generation equipment according to claim 1 and claim 2
Body hydrostatic bearing, it is characterised in that：By air supporting set（3）Gentle kickboard（4）The air-bearing of composition, the supply gas pressure used for
The air bearing surface flatness of 0.6-1.5MPa, air bearing are not less than 0.002mm, and surface roughness is not less than Ra0.2.
5. a kind of efficient asymmetric air for vertical wind power generation equipment according to claim 1 and claim 2
Body hydrostatic bearing, it is characterised in that：By air supporting set（3）Gentle kickboard（4）The air-bearing of composition, throttling form are aperture section
Stream, looping pit throttling, porous restriction or micro- gust of hole throttling form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183251.6A CN108374770A (en) | 2018-03-06 | 2018-03-06 | A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810183251.6A CN108374770A (en) | 2018-03-06 | 2018-03-06 | A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108374770A true CN108374770A (en) | 2018-08-07 |
Family
ID=63018475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810183251.6A Pending CN108374770A (en) | 2018-03-06 | 2018-03-06 | A kind of efficient asymmetric air body hydrostatic bearing for vertical wind power generation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067701A (en) * | 2019-04-25 | 2019-07-30 | 曲阜师范大学 | Oversea wind pneumatic suspension vertical axis seawater desalination system and its control method |
-
2018
- 2018-03-06 CN CN201810183251.6A patent/CN108374770A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067701A (en) * | 2019-04-25 | 2019-07-30 | 曲阜师范大学 | Oversea wind pneumatic suspension vertical axis seawater desalination system and its control method |
| CN110067701B (en) * | 2019-04-25 | 2020-10-02 | 曲阜师范大学 | Offshore wind power pneumatic suspension vertical shaft seawater desalination system and control method thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180807 |
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| RJ01 | Rejection of invention patent application after publication |