CN112096578A - Foundation support roller thrust bearing and vertical axis wind power generation device - Google Patents
Foundation support roller thrust bearing and vertical axis wind power generation device Download PDFInfo
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- CN112096578A CN112096578A CN202010896860.3A CN202010896860A CN112096578A CN 112096578 A CN112096578 A CN 112096578A CN 202010896860 A CN202010896860 A CN 202010896860A CN 112096578 A CN112096578 A CN 112096578A
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- 238000010248 power generation Methods 0.000 title claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 73
- 238000005096 rolling process Methods 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 230000005540 biological transmission Effects 0.000 claims abstract description 47
- 239000000725 suspension Substances 0.000 claims description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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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- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- 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
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
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- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
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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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The embodiment of the invention relates to the technical field of new energy, and provides a foundation support roller thrust bearing and a vertical axis wind power generation device. This basis supporting roller thrust bearing includes dynamic connector, gyro wheel mechanism and track quiet body, one side and the transmission shaft fixed connection of power device of dynamic connector, the opposite side is with a plurality of gyro wheel mechanism is connected, the track quiet body is used for being connected with basic strutting arrangement, and is a plurality of gyro wheel mechanism with the quiet body rolling contact of track can be followed the quiet body circular motion of track. According to the foundation support roller thrust bearing provided by the embodiment of the invention, the dynamic connector, the roller mechanism and the rail static body are arranged to replace a moving ring, a rolling body and a static ring in the traditional rolling thrust bearing, so that the functions of the traditional rolling bearing are realized, all parts do not depend on an inlet, and the manufacturing cost is low.
Description
Technical Field
The invention relates to the technical field of new energy, in particular to a foundation support roller thrust bearing and a vertical axis wind power generation device.
Background
With the global climate and energy issues becoming more prominent, wind power has become a new source of attention worldwide. The wind energy is a green renewable new energy source, has huge energy, is widely distributed, can be taken on site, does not need transportation, and is convenient to use. The use of wind energy has evolved from the initial wind lifting, sail sailing and wind milling to today's wind generation.
In the past, wind power plants are heavily biased in areas with rich wind power resources, but some areas have power consumption problems, and the phenomenon of wind abandonment is serious, so that the wind power industry enters a valley after 2011. Then, low wind speed wind power development is developed in China, and with the innovative development of low wind speed technology, a low wind speed area which does not have development value before becomes hot soil of the wind power industry. In order to have economic development value in a low wind speed area, the wind energy density acting on the wind wheel blade must reach 0.08-0.17 kw/m2. Therefore, in order to adapt the wind power generator to the low wind speed region, the high power wind power generator set becomes the technical direction for the technicians in the industry to struggle.
During the operation of the vertical shaft turbine power generation device, the dynamic load and the static load of the turbine rotor all act on the roller (or ball) thrust bearing which supports the turbine rotor to rotate at the lowest part. Therefore, in order to allow the entire turbine rotor to perform stable rotational operation, the thrust bearing serving as the base of the turbine rotor must be robust, and the thrust bearing must have high requirements for manufacturing accuracy and mounting accuracy, and also have good aligning capability. However, as the power of wind power generation of the vertical axis turbine is increased, the size and the weight of the turbine rotor are increased, the height of the turbine rotor is also increased, and the gravity center of the whole turbine rotor is shifted upwards. When the diameter of the bearing reaches more than ten meters, the rolling thrust bearing (roller or ball thrust bearing) produced at home at present hardly meets the use requirement, depends on foreign purchase and is very expensive.
Disclosure of Invention
The embodiment of the invention provides a foundation support roller thrust bearing and a vertical axis wind power generation device, which are used for solving the problems that the rolling thrust bearing produced at home at present depends on foreign purchasing and is high in price in the high-power vertical axis turbine wind power generation technology.
The embodiment of the invention provides a foundation support roller thrust bearing, which comprises a dynamic connecting body, a roller mechanism and a track static body, wherein one side of the dynamic connecting body is fixedly connected with a transmission shaft of a power device, the other side of the dynamic connecting body is connected with a plurality of roller mechanisms, the track static body is connected with a foundation support device, and the plurality of roller mechanisms are in rolling contact with the track static body and can move along the circumference of the track static body.
According to the foundation support roller thrust bearing provided by the embodiment of the invention, the roller mechanism comprises a hanging bracket and a support roller, the hanging bracket is connected with the dynamic connecting body, and the support roller is rotatably arranged on the hanging bracket and is in rolling contact with the rail static body.
According to an embodiment of the invention, the thrust bearing of the foundation support roller further comprises a limiting member mounted on the hanger, a track surface of the track static body is a plane, and the limiting member is used for limiting a radial offset of the support roller on the track surface.
According to the foundation support roller thrust bearing provided by the embodiment of the invention, the limiting piece comprises an inner limiting wheel and an outer limiting wheel, the inner limiting wheel and the outer limiting wheel are respectively connected with the hanging bracket in a rotating manner, the track static body is clamped between the inner limiting wheel and the outer limiting wheel, and the inner limiting wheel and the outer limiting wheel are in rolling contact with the side surface of the track static body.
According to the foundation support roller thrust bearing of one embodiment of the invention, the dynamic connecting body is provided with a suspension shaft, and the suspension bracket is rotatably connected with the suspension shaft.
The foundation support roller thrust bearing further comprises a foundation support, wherein a rail static body supporting body is fixedly arranged on the foundation support, and the rail static body is detachably arranged on the rail static body supporting body.
According to the foundation support roller thrust bearing provided by the embodiment of the invention, the dynamic connecting body comprises an inner ring and an outer ring which are fixedly connected with each other, the inner ring is fixedly connected with the transmission shaft, and the outer ring is connected with the roller mechanism.
According to one embodiment of the invention, the foundation support thrust rolling device further comprises a suspension cable, one end of the suspension cable is fixedly connected with the power device, the other end of the suspension cable is fixedly connected with the dynamic connecting body, and a plurality of suspension cables are distributed in a centrosymmetric manner by using the rotation center of the dynamic connecting body.
The embodiment of the invention also provides a vertical axis wind power generation device which comprises a transmission shaft, a turbine rotor, a generator and any one of the basic supporting roller thrust bearings, wherein the upper section of the transmission shaft is fixedly connected with the turbine rotor, the lower section of the transmission shaft is fixedly connected with the input end of the generator, and the dynamic connecting body is fixedly connected with the transmission shaft.
The vertical axis wind power generation device further comprises a connecting shaft, the connecting shaft is fixedly connected with the transmission shaft, the base support is provided with a connecting plate, the connecting plate is provided with a through hole, the connecting shaft penetrates through the through hole, a connecting flange is arranged above the through hole, and the dynamic connecting body is fixedly connected with the connecting flange.
According to the foundation support roller thrust bearing and the vertical axis wind power generation device provided by the embodiment of the invention, the dynamic connector, the roller mechanism and the rail static body are arranged to replace a dynamic ring, a rolling body and a static ring in the traditional rolling thrust bearing, so that the dynamic load and the static load of the rotor are transmitted to the rail static body through the dynamic connector and the plurality of roller mechanisms, and the function of the traditional rolling bearing is realized. The three all can make alone, and gyro wheel mechanism can make into general piece, through the size of adjustment dynamic link body and the quiet body of track and the quantity of gyro wheel mechanism, can adapt to the turbine wind power generation set's of different power user demand, and each part does not all rely on the import, and the cost is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view of a basic support roller thrust bearing according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a roller mechanism in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a base bracket in an embodiment of the invention;
fig. 4 is a schematic structural view of a connecting shaft in the embodiment of the invention;
FIG. 5 is a schematic diagram of the structure of a dynamic link in an embodiment of the present invention;
FIG. 6 is a top view of the dynamic link of FIG. 5.
Reference numerals:
1. a dynamic connector; 11. an inner ring; 12. an outer ring; 13. spoke rib plates; 14. a first mounting hole; 15. a second mounting hole; 16. a suspension cable lifting lug; 2. a roller mechanism; 21. a hanger; 22. supporting the rollers; 23. supporting the roller shaft; 24. a suspension shaft; 25. a vibration-damping elastomer; 26. a connecting member; 27. limiting the idler wheel; 3. a rail static body; 4. a base support; 41. a rail static support; 42. supporting the upright post; 43. bracing a corbel; 44. a bracket ring beam; 45. a connecting plate; 46. a through hole; 47. a rain retaining ring; 5. a connecting shaft; 51. a connecting flange; 52. an upper flange; 53. a lower flange; 54. a lower conical reinforcing rib plate; 6. a suspension cable; 7. a turbine rotor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foundation support roller thrust bearing of an embodiment of the present invention is described below with reference to fig. 1-6. Fig. 1 is a schematic structural diagram of a basic support roller thrust bearing according to an embodiment of the present invention. The thrust bearing of the basic supporting roller comprises a dynamic connector 1, roller mechanisms 2 and a track static body 3, wherein one side of the dynamic connector 1 is fixedly connected with a transmission shaft of a power device such as a turbine rotor, the other side of the dynamic connector 1 is fixedly connected with a plurality of roller mechanisms 2, the track static body 3 is used for being connected with the basic supporting device, and the plurality of roller mechanisms 2 are in rolling contact with the track static body 3 and can move circularly along the track static body 3. The number of the roller mechanisms 2 can be determined according to the dynamic and static loads of the power device to be borne and the radial size of the basic supporting roller thrust bearing. When the power device drives the transmission shaft to rotate, the dynamic connecting body 1 drives the roller mechanism 2 to rotate around the axis of the transmission shaft and along the circumferential direction of the rail static body 3, and meanwhile, the roller mechanism 2 rolls on the rail static body 3.
In a conventional vertical-axis wind turbine generator, a turbine rotor is connected to a generator through a drive shaft to transfer mechanical energy obtained by the turbine rotor to the generator for power generation. The transmission shaft of the turbine rotor is rotatably connected with the basic supporting device through a traditional rolling thrust bearing (such as a ball or roller thrust bearing), the transmission shaft is fixedly connected with a movable ring of the rolling thrust bearing, and the basic supporting device is fixedly connected with a static ring of the rolling thrust bearing, so that all dynamic and static loads of the turbine rotor act on the rolling thrust bearing.
The basic support roller thrust bearing provided by the embodiment of the invention replaces the traditional rolling thrust bearing, the dynamic connector 1 is fixedly connected with the transmission shaft of the turbine rotor, and the track static body 3 is arranged on the basic support device, so that the basic support roller thrust bearing is utilized to realize the rotary connection between the transmission shaft of the turbine rotor and the basic support device and bear the dynamic and static loads of the turbine rotor. The dynamic connector 1 is equivalent to a moving ring of a traditional rolling thrust bearing, and the track static body 3 is equivalent to a static ring of the traditional rolling thrust bearing.
According to the basic support roller thrust bearing provided by the embodiment of the invention, the dynamic connector 1, the roller mechanisms 2 and the track static body 3 are arranged to replace a dynamic ring, a rolling body and a static ring in the traditional rolling thrust bearing, so that the dynamic load and the static load of a rotor are transmitted to the track static body 3 through the dynamic connector 1 and the plurality of roller mechanisms 2, and the function of the traditional rolling thrust bearing is realized; the three all can make alone, and gyro wheel mechanism 2 can make into the general piece, through the size of adjustment dynamic connection body 1 and the quiet body 3 of track and the quantity of gyro wheel mechanism 2, can adapt to the turbine wind power generation set's of different power user demand, and each part does not all rely on the import, and the cost is low.
When installing this basic support roller thrust bearing, only need guarantee that dynamic connector 1 and transmission shaft firm connection and gyro wheel mechanism 2 can be on the quiet body 3 of track circumference roll can, influence the diameter that depends on dynamic connector 1 and the quiet body 3 of track of installation accuracy. Therefore, compared with the traditional rolling thrust bearing, the foundation support roller thrust bearing has lower requirements on manufacturing and installation precision, and can meet the use requirements of a high-power vertical axis wind power generation device. Through a plurality of tests, the large-size dynamic connecting body 1 and the track static body 3 which are dozens of meters can meet the use requirement, and the problem that the rolling thrust bearing which can be manufactured at home at present cannot meet the high power of a vertical axis wind power generation single machine is solved.
As shown in fig. 2, which is a schematic structural diagram of the roller mechanism in the embodiment of the present invention, the roller mechanism 2 includes a hanger 21 and a support roller 22, the hanger 21 is connected to the dynamic connection body 1, and the support roller 22 is rotatably mounted on the hanger 21 and is in rolling contact with the rail static body 3. When the dynamic connection body 1 rotates, the supporting roller 22 is driven to make a circular motion around the orbital stationary body 3. Specifically, a support roller shaft 23 is fixed on the hanger 21, and the support roller 22 is rotatably connected to the support roller shaft 23 through a support roller bearing, so that the support roller 22 is in a low friction environment, and the support roller bearing should meet the requirement of high rotation speed. The axial dynamic and static loads of the power device act on the track static body 3 through the supporting rollers 22 of the plurality of roller mechanisms 2, and the rolling of the rollers is used for replacing the rolling of balls or rollers, so that the bearing capacity of the device is greatly enhanced.
In the embodiment of the invention, the upper end of the hanger 21 can be fixedly connected with the dynamic connector 1, when the hanger 21 is fixedly connected with the dynamic connector 1, the rotation central axis of the support roller 22 is intersected with the rotation central axis of the transmission shaft, that is, the rolling direction of the support roller 22 is always tangent to the track circle rotating around the transmission shaft, so as to ensure that the support roller 22 always rolls on the static body of the track without sliding; the hanging bracket 21 can also be rotatably connected with the dynamic connection body 1, specifically, a hanging shaft 24 is installed on the dynamic connection body 1, and the hanging bracket 21 is rotatably connected with the hanging shaft 24. The roller mechanism 2 can freely turn and run on the rail static body 3, so that the requirement on the assembly precision between the roller mechanism 2 and the dynamic connecting body 1 is reduced. Wherein, the hanger 21 and the suspension shaft 24 are connected by a non-lubricated sliding bearing. The non-lubricated sliding bearing adopts polytetrafluoroethylene with self-lubricating effect or other materials with self-lubricating effect.
In order to make the basic support roller thrust bearing provided by the embodiment of the present invention operate more smoothly, as shown in fig. 2, a vibration damping elastic body 25 is provided between the hanger 21 and the dynamic link 1 in the embodiment of the present invention to absorb part of the vibration due to the load fluctuation.
In the embodiment of the invention, the rail static body 3 can be provided with a limiting groove, and the roller mechanism 2 is limited to roll in the limiting groove. The track surface of the track stator 3 may be a flat surface, for example, as shown in fig. 2, the track stator 3 includes an inner side surface close to the transmission shaft, an outer side surface far from the transmission shaft, and a track surface connecting upper ends of the inner side surface and the outer side surface, and the support roller moves on the track surface. At this time, a stopper is installed on the hanger 21 to limit the radial offset of the support roller on the track surface.
In order to reduce the sliding friction generated by the contact between the position limiting element and the track stator 3, the position limiting element in the embodiment of the present invention is two rolling elements rotatably mounted on the hanger 21 and located at two sides of the supporting roller 22, and the rolling elements are rotatably connected to the hanger 21 through a connecting element 26. The orbital stator 3 is interposed between two rolling bodies. When the roller mechanism 2 rolls along the stationary rail member 3, the rolling elements simultaneously roll on the inner and outer side surfaces of the stationary rail member 3.
It should be noted that, when the orbital stator 3 has a limited recess, the rolling element structure may be provided, and the rolling element may be located inside the recess or outside the recess. When the rolling body is positioned in the groove, the rolling body is in rolling contact with the inner wall of the groove; when the rolling bodies are located outside the grooves, the rolling bodies are brought into rolling contact with the inner and outer side surfaces of the orbital stator 3.
In the embodiment of the present invention, the rolling element may be a limiting roller 27, which includes an inner limiting wheel and an outer limiting wheel, and the inner limiting wheel and the outer limiting wheel are respectively rotatably connected to the hanger 21. When the track surface of the track static body 3 is a plane, the track static body 3 is clamped between an inner limiting wheel and an outer limiting wheel, the inner limiting wheel and the outer limiting wheel are respectively in rolling contact with the inner side surface and the outer side surface of the track static body 3, and the limiting roller 27 is rotatably connected with the connecting piece 26 through a limiting roller bearing, and the limiting roller bearing is required to meet the requirement of high rotating speed. The limiting rollers 27 are additionally arranged on the hanging bracket 21 and move along the circumference of the track static body 3 along with the roller mechanism 2, and the track static body is clamped between the two limiting rollers 27, so that the roller mechanism 2 can only operate within an allowable deviation range. The rolling elements may also be balls embedded in the connecting element 26, the balls may roll freely on the connecting element 26, and the portion of the balls exposed out of the connecting element 26 is in rolling contact with the orbital stator 3.
The foundation support roller thrust bearing provided by the embodiment of the invention also comprises a foundation support 4, and the foundation support 4 can be used as a foundation support device and can also be arranged on the foundation support device. The base support 4 is positioned below the power device and is used for bearing dynamic and static loads of the whole power device. The track static body supporting body 41 is fixedly installed on the foundation support 4, and the track static body 3 is detachably installed on the track static body supporting body 41, so that the transportation, installation and maintenance of the foundation support roller thrust bearing can be facilitated. The track static body 3 and the track static body support 41 are matched in various ways, for example, a track groove is formed in the track static body support 41, and the track static body 3 is directly placed in the track groove; alternatively, the track stator 3 is a concave pressing plate, and the concave surface of the concave pressing plate is directly buckled on the track stator supporting body 41. Wherein, the track groove is provided with the setting element like the constant head tank and the location arch of mutually supporting with track quiet body 3 or concave clamp plate and track quiet body support 41 mutually contact department for prevent that track quiet body 3 from taking place circumferential slip relative to track quiet body support 41.
Because power device's whole dynamic and static load acts on track quiet body 3 through gyro wheel mechanism 2, consequently, require higher to the mechanical properties of track quiet body 3, track quiet body 3 detachably installs in track quiet body supporter 41, then only need make track quiet body 3 with higher manufacturing requirement alone, accomplish less change once the preparation to reduce whole basic supporting roller thrust bearing's the manufacturing degree of difficulty and cost of manufacture.
Wherein, the track static body support body 41 and the base bracket 4 can be integrally formed or welded and fixed; the track static body supporting body 41 can also be fixedly connected with the base support 4 through a plurality of adjusting sizing blocks, the adjusting sizing blocks are uniformly distributed along the circumferential direction of the track static body supporting body 41, and the levelness of the track static body supporting body 41 can be adjusted through the adjusting sizing blocks so as to ensure that the track static body 3 has better levelness, thereby reducing the requirement on the manufacturing precision of the track static body 3.
In the embodiment of the present invention, the base frame 4 further includes a plurality of support columns 42 uniformly distributed around the axis of the transmission shaft and a diagonal brace bracket 43 fixed on each support column 42, and the tops of the plurality of support columns 42 are connected into a whole through a frame ring beam 44, so as to form a firm and stable frame body structure.
Fig. 5 is a schematic structural diagram of a dynamic link according to an embodiment of the present invention, and fig. 6 is a top view of the dynamic link in fig. 5. In the embodiment of the present invention, the dynamic connection body 1 includes an inner ring 11 and an outer ring 12 fixedly connected to each other, and the inner ring 11 is used for fixedly connecting with a transmission shaft of the power device. The outer ring 12 is connected with the roller mechanisms 2, and the plurality of roller mechanisms 2 are uniformly distributed along the circumferential direction of the outer ring 12. The inner ring 11 and the outer ring 12 are connected into a whole through a plurality of spoke rib plates 13 which are uniformly distributed around the circumferential direction of the transmission shaft, and a main body part of the dynamic connector 1 is formed. The dynamic connector 1 is equivalent to a moving ring of a traditional rolling thrust bearing, bears the static load of the power device, transmits the static load to the roller mechanism 2, and finally transmits the static load of the power device to the rail static body 3 through the roller mechanism 2.
Wherein, a connecting flange 51 connected with the inner ring 11 can be arranged on the transmission shaft of the power device, a first mounting hole 14 used for assembling with the connecting flange 51 is arranged on the inner ring 11, and a second mounting hole 15 used for mounting the roller mechanism 2 is arranged on the outer ring 12. The plurality of roller mechanisms 2 may be suspended from the outer ring 12 through the second mounting holes 15.
As shown in fig. 1, the thrust bearing of the foundation support roller according to the embodiment of the present invention further includes a suspension cable 6, one end of the suspension cable 6 is fixedly connected to the power device, the other end of the suspension cable 6 is fixedly connected to the dynamic connection body 1, and the plurality of suspension cables 6 are distributed in a central symmetry manner around the rotation center of the dynamic connection body 1. Specifically, the suspension cable 6 is made of a steel cable or a high-strength rope made of other materials, the dynamic connector 1 is provided with a plurality of suspension cable lifting lugs 16 along the radial direction and the circumferential direction, for example, each spoke type rib plate 13 of the dynamic connector 1 is provided with a plurality of suspension cable lifting lugs 16, the suspension cable 6 suspends the dynamic connector 1 on the power device through the suspension cable lifting lugs 16, and the dynamic connector 1 and the power device are connected into a whole, so that the strength and the rigidity of the dynamic connector 1 are greatly enhanced, and the roller mechanism 2 can run more stably. In addition, the suspension cable 6 has larger flexibility and better dynamic centering function.
The embodiment of the invention also provides a vertical axis wind power generation device, which comprises a transmission shaft, a turbine rotor 7, a generator and the foundation support roller thrust bearing of any one of the embodiments, wherein the upper section of the transmission shaft is fixedly connected with the turbine rotor 7, the lower section of the transmission shaft is fixedly connected with the input end of the generator, and the dynamic connecting body 1 is fixedly connected with the transmission shaft. It should be noted that the turbine rotor 7 in the present embodiment corresponds to the power plant in the above embodiment, the transmission shaft corresponds to the transmission shaft of the power plant in the above embodiment, and the operation mechanism of the basic support roller thrust bearing in the present embodiment can be referred to the above embodiment, and is not described again here.
The foundation support roller thrust bearing provided by the embodiment of the invention is applied to a vertical axis wind power generation device, and can replace a rolling thrust bearing in the traditional vertical axis wind power generation device. In order to reduce damage of rainwater to the devices, fig. 3 is a schematic structural diagram of the basic bracket in the embodiment of the present invention, and referring to fig. 1, the basic bracket 4 is provided with a connecting plate 45, the connecting plate 45 is provided with a through hole 46, and a transmission shaft of a power device passes through the through hole 46 to be connected with an input end of the generator below the connecting plate 45, so that a rain sheltering hall is formed below the connecting plate 45.
The connecting plate 45 may be provided with a tapered surface inclined downward all around so that rainwater can be naturally discharged to the outside along the connecting plate 45. However, a small amount of rainwater can leak into the hall from the through hole, and therefore, the dynamic connection structure further comprises a connection shaft 5, the connection shaft 5 is fixedly connected with a transmission shaft of the turbine rotor, the connection shaft 5 penetrates through the through hole 46, a connection flange 51 is arranged above the connection shaft 5 located in the through hole 46, and the dynamic connection body 1 is fixedly connected with the connection flange 51, so that rainwater can be completely prevented from falling into the hall from the through hole 46. The connecting flange 51 serves both for the connection and fixation with the dynamic connector 1 and for the protection against rain. It should be noted that, a connecting flange may also be directly provided on the transmission shaft of the turbine rotor, the transmission shaft of the turbine rotor is directly inserted into the through hole 46 to be connected with the mechanism below, and the dynamic connector 1 is fixedly connected with the transmission shaft of the rotor through the connecting flange.
Wherein, the connecting plate 45 is installed above a plurality of bracing corbels 43, and is connected a plurality of bracing corbels 43 into an organic whole, but the intensity of greatly increased foundation support 4 makes foundation support 4's the ability of bearing the live, the static load of rotor also improve thereupon by a wide margin. The connecting plate 45 may be disposed horizontally, and a rain blocking ring 47 is protruded from the upper surface of the connecting plate outside the through hole 46. The rain retaining ring 47 is located within the vertical projection of the connecting flange 51, e.g. the diameter of the connecting flange 51 is larger than the diameter of the rain retaining ring 47, so as to prevent rain water from falling vertically into the hall directly from above the through-hole 46.
Specifically, as shown in fig. 4, which is a schematic structural diagram of the connecting shaft in the embodiment of the present invention, an upper flange 52 and a lower flange 53 are respectively disposed at an upper end and a lower end of the connecting shaft 5, an upper end of the connecting shaft 5 is fixedly connected to the turbine rotor or an upper section of a transmission shaft of the turbine rotor through the upper flange 52, and a lower end of the connecting shaft is fixedly connected to a lower section of the transmission shaft of the rotor through the lower flange 53. The mechanical power obtained by the turbine rotor is transmitted to the connecting shaft 5, and is transmitted to the lower section of the transmission shaft of the rotor by the connecting shaft 5, and the lower section of the transmission shaft of the rotor is connected with the input end of the generator, so that the power obtained by the turbine rotor is transmitted to the transmission chain of the generator. Wherein, the upper flange 52 and the connecting flange 51 are both provided with lower conical reinforcing rib plates 54, and the wind resistance is reduced on the basis of enhancing the reliability and stability of the structure.
It should be noted that the foundation support roller thrust bearing provided in the embodiment of the present invention may also include a connecting shaft 5, a connecting plate 45, and a rain retaining ring 47, that is, the connecting shaft 5, the connecting plate 45, and the rain retaining ring 47 are all part of the foundation support roller thrust bearing. The connecting shaft 5 is fixedly connected with the dynamic connecting body 1 through the connecting flange 51, and the connecting plate 45 and the rain blocking ring 47, and the connection relationship and the position relationship between the two and other components can be referred to the above embodiment, and are not described herein again. When the connecting shaft is arranged on a vertical axis wind power generation device, the upper end of the connecting shaft 5 is connected with the turbine rotor, and the lower end of the connecting shaft 5 is connected with the generator, so that the damage of rainwater to equipment below the connecting plate 45 can be avoided.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a basis support roller thrust bearing which characterized in that, includes dynamic connector, gyro wheel mechanism and track quiet body, one side of dynamic connector be used for with power device's transmission shaft fixed connection, the opposite side with a plurality of gyro wheel mechanism is connected, the track quiet body is used for being connected with basic strutting arrangement, and is a plurality of gyro wheel mechanism with the quiet body rolling contact of track can follow the quiet body circular motion of track.
2. The foundation support roller thrust bearing of claim 1, wherein said roller mechanism includes a hanger coupled to said dynamic link and a support roller rotatably mounted to said hanger and in rolling contact with said rail static body.
3. The foundation support roller thrust bearing of claim 2, further comprising a stop member mounted to the hanger, wherein the raceway surface of the stationary rail member is planar, and wherein the stop member is configured to limit the amount of radial deflection of the support roller on the raceway surface.
4. The foundation support roller thrust bearing of claim 3, wherein said retaining member comprises an inner retaining wheel and an outer retaining wheel, said inner retaining wheel and said outer retaining wheel being rotatably coupled to said hanger, respectively, said stationary rail member being sandwiched between said inner retaining wheel and said outer retaining wheel, said inner retaining wheel and said outer retaining wheel each being in rolling contact with a side surface of said stationary rail member.
5. The foundation support roller thrust bearing of claim 2, wherein a suspension shaft is mounted to the dynamic link, the suspension bracket being rotatably coupled to the suspension shaft.
6. The foundation support roller thrust bearing of claim 1, further comprising a foundation support frame, wherein a rail static support body is fixedly mounted on the foundation support frame, and the rail static body is detachably mounted on the rail static support body.
7. The thrust bearing of the foundation support roller according to any one of claims 1 to 6, wherein the dynamic connection body comprises an inner ring and an outer ring fixedly connected with each other, the inner ring is fixedly connected with the transmission shaft, and the outer ring is connected with the roller mechanism.
8. The foundation support roller thrust bearing of any one of claims 1 to 6, further comprising a suspension cable, wherein one end of the suspension cable is fixedly connected to the power device, the other end of the suspension cable is fixedly connected to the dynamic connector, and a plurality of the suspension cables are distributed in a central symmetry manner with respect to a rotation center of the dynamic connector.
9. A vertical axis wind power generation device, comprising a turbine rotor, a transmission shaft, a generator and a foundation support roller thrust bearing according to any one of claims 1 to 8, wherein the upper section of the transmission shaft is fixedly connected with the turbine rotor, the lower section of the transmission shaft is fixedly connected with the input end of the generator, and the dynamic connecting body is fixedly connected with the transmission shaft.
10. The vertical axis wind turbine generator according to claim 9, further comprising a connecting shaft, wherein the connecting shaft is fixedly connected to the transmission shaft, a connecting plate is mounted on the base bracket, the connecting plate is provided with a through hole, the connecting shaft is inserted into the through hole, a connecting flange is disposed above the through hole of the connecting shaft, and the dynamic connecting body is fixedly connected to the connecting flange.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896860.3A CN112096578A (en) | 2020-08-31 | 2020-08-31 | Foundation support roller thrust bearing and vertical axis wind power generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010896860.3A CN112096578A (en) | 2020-08-31 | 2020-08-31 | Foundation support roller thrust bearing and vertical axis wind power generation device |
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| CN112096578A true CN112096578A (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010896860.3A Pending CN112096578A (en) | 2020-08-31 | 2020-08-31 | Foundation support roller thrust bearing and vertical axis wind power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085622A (en) * | 2021-03-15 | 2021-07-09 | 河南恒聚新能源设备有限公司 | Wind, light, electricity, hydrogen storage integrated charging and hydrogen charging system for electric automobile on highway |
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