CN101419125A - Wind power turntable bearing comprehensive performance experiment table - Google Patents
Wind power turntable bearing comprehensive performance experiment table Download PDFInfo
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- CN101419125A CN101419125A CNA2008102430263A CN200810243026A CN101419125A CN 101419125 A CN101419125 A CN 101419125A CN A2008102430263 A CNA2008102430263 A CN A2008102430263A CN 200810243026 A CN200810243026 A CN 200810243026A CN 101419125 A CN101419125 A CN 101419125A
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- 238000002474 experimental method Methods 0.000 title abstract description 16
- 238000003825 pressing Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 22
- 230000008859 change Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 241001061264 Astragalus Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention relates to a comprehensive performance experiment table for a wind power turntable bearing, which consists of a bottom plate (1), a lower adapter flange cylinder (2), a power assembly (3), a wind power turntable bearing (4), an upper adapter flange cylinder (6) and a loading cover (10), wherein the lower adapter flange cylinder (2) is connected with at least one pair of wind power turntable bearings (4), and the wind power turntable bearings (4) adopt a back-to-back installation mode for two sets of same specifications; a pinion (25) is arranged on the power assembly (3), and the pinion (25) is meshed with the inner ring or outer ring transmission teeth of one or two wind power turntable bearings (4) in the pair of wind power turntable bearings (4); an upper adapter flange cylinder (6) is detachably connected above the wind power turntable bearing (4), and a loading cover (10) is detachably connected above the upper adapter flange cylinder (6). The invention has compact structure and convenient assembly, can realize modular adjustment according to different wind power turntable bearings, and can simultaneously realize the loading of axial force, radial force and overturning moment.
Description
Technical field
The present invention relates to a kind of large size bearing experiment table, especially a kind of wind-powered turntable bearing combination property bench.
Background technology
Wind-powered turntable bearing is the bearing of a huge inner ring or outer astragal driving cog, mainly forms by inner ring, outer ring, rolling body, spacing block etc., and be the critical component of aerogenerator.Compare with common bearing, the loaded state of wind-powered turntable bearing is more complicated, generally all will bear axial force F
a, radial force F
r, upsetting moment M, and these load present the alternation state, cause the wind-powered turntable bearing fatigue failure.The rapid growth of aerogenerator installed capacity in recent years, driven the development of wind electricity change paddle and driftage turntable bearing industry, domestic many producers invest the production that becomes oar and driftage turntable bearing one after another, yet wind power equipment stand under load complexity, requiring of life-span and reliability is high, and the quality of many wind-powered turntable bearing products is faced with severe tests.
At present, both at home and abroad all there are bearing life computing formula separately in standard and external many bearing manufacturing firm, relatively these formula are found, these formula all have similar form, be that correction factor multiply by basic rating life, bearing for same specification, its basic rating life is identical, but different standards or producer but have nothing in common with each other to the processing of correction factor, therefore correction factor is from the quality of production that to a certain degree reflected each producer's bearing and the applying working condition of bearing, and these formula after revising also are generalized in the life prediction and reliability design of wind-powered turntable bearing.At present domestic also do not have wind-powered turntable bearing producer to set up the life formula that is fit to own product, its main cause is that the establishment of formula correction factor need be based on the statistics of a large amount of experiments and practical application, and does not domesticly also have at present to carry out the wind-powered turntable bearing of different size a complicated experimental assembly that loads and gather coherent signal.
Summary of the invention
The objective of the invention is to propose a kind of can be the experiment table that 1800mm-2500mm wind-powered turntable bearing carries out the combination property experiment to the raceway central diameter, can be used to assess the workmanship of wind-powered turntable bearing product, for setting up the wind-powered turntable bearing life formula and the type selecting formula provides experimental data.
Technical scheme of the present invention is:
A kind of wind-powered turntable bearing combination property bench, comprise base plate 1, down transfer flange tube 2, power assembly 3, wind-powered turntable bearing 4, on transfer flange tube 6 and load and cover 10, switching flange tube 2 removably connects down on the base plate 1, under the wind-powered turntable bearing 4 that removably connects on the flange tube 2 of transferring, it is characterized in that connecting at least one pair of wind-powered turntable bearing 4 on the described flange of the switching down tube 2; Power assembly 3 is provided with pinion wheel 25, the inner ring of one or two wind-powered turntable bearing 4 in pinion wheel 25 and a pair of wind-powered turntable bearing 4 or the engagement of outer ring driving cog; Wind-powered turntable bearing 4 tops removably connect and go up switching flange tube 6, and loading is covered 10 and is removably connected to switching flange tube 6 tops.
When described wind-powered turntable bearing 4 was one or more pairs of, every pair was that two cover same specifications are taked the wind-powered turntable bearing 4 of " back-to-back " mounting means, closely was connected at least one anti-bolt interference packing ring 5 between wind-powered turntable bearing 4 and the wind-powered turntable bearing 4.
Described base plate 1 one ends are provided with radial force loading frame 7, and radial force loading frame 7 is provided with radial oil cylinders holder 8, and radial oil cylinders holder 8 and loading are provided with radial loaded oil cylinder 9 between covering 10.
Described base plate 1 and loading are provided with upsetting moment load cylinder group 11 between covering 10, and upsetting moment load cylinder group 11 is made up of a pair of oil cylinder at least.
Described base plate 1 and loading are provided with axial force load cylinder group 12 between covering 10, and axial force load cylinder group 12 is made up of a pair of oil cylinder at least.
Described base plate 1 is provided with spacing column 14, and spacing column 14 covers 10 1 ends near loading and is provided with positive stop 13, and positive stop 13 removably connects with spacing column 14.
Described power assembly 3 is provided with oil motor 20 and shaft coupling 22, and shaft coupling 22 connects torque sensor 24 and oil motor 20.
Described power assembly 3 is provided with servomotor 15, spindle motor mount pad 16, ball-screw 17, the preceding mount pad 18 of leading screw, guide rail 19, power assembly slide carriage 21 and pressing plate 26, power assembly slide carriage 21 is located on the guide rail 19 and is connected with nut on the ball-screw 17, ball-screw 17 is driven by servomotor 15, servomotor 15 and ball-screw 17 by spindle motor mount pad 16 and leading screw before mount pad 18 be installed on the base plate 1, power assembly slide carriage 21 is provided with pressing plate 26, and guide rail 19 is between power assembly slide carriage 21 and guide rail 19.
Described power assembly slide carriage 21 is provided with torque sensor support 23, and torque sensor support 23 is provided with torque sensor 24.
The invention has the beneficial effects as follows:
The present invention can monitor the situation of change of wind-powered turntable bearing steering resistance square, the situation of change of raceway wear extent, situation of change, rolling body and the raceway contact vibration situation of change of lubricating oil temperature in real time in wind-powered turntable bearing loading experiment process, for the inefficacy of wind-powered turntable bearing provides key criterion.Simultaneously can also detect the wind-powered turntable bearing root stress, investigate the strength of gear teeth.Compact conformation of the present invention, easy to assembly, and can realize the modularization adjustment according to different wind-powered turntable bearings, can realize the loading of axial force, radial force and upsetting moment simultaneously.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention;
Fig. 2 is the side sectional view of power assembly of the present invention;
Fig. 3 is the structural representation of power assembly of the present invention.
Among the figure: 1, base plate, 2, under the flange tube of transferring, 3, power assembly, 4, wind-powered turntable bearing, 5, anti-bolt is interfered packing ring, 6, last switching flange tube, 7, the radial force loading frame, 8, the radial oil cylinders holder, 9, the radial loaded oil cylinder, 10, load lid, 11, upsetting moment load cylinder group, 12, axial force load cylinder group, 13, positive stop, 14, spacing column, 15, servomotor, 16, the spindle motor mount pad, 17, ball-screw, 18, mount pad before the leading screw, 19, guide rail, 20, oil motor, 21, the power assembly slide carriage, 22, shaft coupling, 23, the torque sensor support, 24, torque sensor, 25, pinion wheel, 26, pressing plate.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
A kind of wind-powered turntable bearing combination property bench, comprise base plate 1, down transfer flange tube 2, power assembly 3, wind-powered turntable bearing 4, on transfer flange tube 6 and load and cover 10, bolt connects switching flange tube 2 down on the base plate 1, under transfer that bolt connects wind-powered turntable bearing 4 on the flange tube 2, under transfer and connect a pair of wind-powered turntable bearing 4 on the flange tube 2, and be the wind-powered turntable bearing 4 that two cover same specifications are taked " back-to-back " mounting means; Power assembly 3 is provided with pinion wheel 25, the inner ring of a wind-powered turntable bearing 4 in pinion wheel 25 and a pair of wind-powered turntable bearing 4 or the engagement of outer ring driving cog; Square bolt connects upward switching flange tube 6 on the wind-powered turntable bearing 4, and loading is covered 10 bolts and is connected in switching flange tube 6 tops.
Wind-powered turntable bearing 4 is a pair of, closely is connected an anti-bolt interference packing ring 5 between wind-powered turntable bearing 4 and the wind-powered turntable bearing 4; Flange tube 2, anti-bolt interference packing ring 5 and the last size of transferring flange tube 6 of transferring down specifically adjusted according to the size of the wind-powered turntable bearing 4 that is loaded.
Base plate 1 one ends are provided with radial force loading frame 7, and radial force loading frame 7 is provided with radial oil cylinders holder 8, and radial oil cylinders holder 8 and loading are provided with radial loaded oil cylinder 9 between covering 10.
Base plate 1 and loading are provided with upsetting moment load cylinder group 11 between covering 10, and upsetting moment load cylinder group 11 is that a pair of oil cylinder is formed.
Base plate 1 and loading are provided with axial force load cylinder group 12 between covering 10, and axial force load cylinder group 12 is that a pair of oil cylinder is formed.
Base plate 1 is provided with spacing column 14, and spacing column 14 covers 10 1 ends near loading and is provided with positive stop 13, and positive stop 13 removably connects with spacing column 14, and its quantity and shape are according to the actual conditions adjustment.
Power assembly 3 is provided with servomotor 15, spindle motor mount pad 16, ball-screw 17, the preceding mount pad 18 of leading screw, guide rail 19, power assembly slide carriage 21 and pressing plate 26, power assembly slide carriage 21 is located on the guide rail 19 and is connected with nut on the ball-screw 17, ball-screw 17 is driven by servomotor 15, servomotor 15 and ball-screw 17 by spindle motor mount pad 16 and leading screw before mount pad 18 be installed on the base plate 1, power assembly slide carriage 21 is provided with pressing plate 26, and guide rail 19 is between power assembly slide carriage 21 and guide rail 19.
As Fig. 2, Fig. 3, oil motor 20, torque sensor support 23 usefulness bolts are installed on power assembly slide carriage 21, torque sensor 24 usefulness bolts are fixedlyed connected with moment of torsion sensor bracket 23, rely on shaft coupling 22 to be connected also transferring power between torque sensor 24 and the oil motor 20.Power assembly slide carriage 21 is supported on that 19 on guide rail is gone up and connects in the nut of ball-screw 17, ball-screw 17 is driven by servomotor 15, servomotor 15 and ball-screw 17 by spindle motor mount pad 16 and leading screw before mount pad 18 be installed on base plate 1.Be ready to pinion wheel 25 according to pivoting support gear ring parameter to be measured before each experiment, and pinion wheel 25 is installed on the shaft coupling 22.
As Fig. 1, before experiment according to wind-powered turntable bearing 4 to be measured and lower shoe 1 and load cover 10 mounting hole sizes be ready to respectively down switching flange tube 2 and on the flange tube 6 of transferring.At first with wind-powered turntable bearing 4 to be measured, anti-bolt interferes the connection of packing ring 5 usefulness bolts to do as a whole, the following row's flange and the floor 1 usefulness bolt of flange tube 2 of transferring down installed, transfer down flange tube 2 go up row's flange and wind-powered turntable bearing 4 usefulness bolt are installed, the following row's flange and the wind-powered turntable bearing 4 usefulness bolt of last switching flange tube 6 are installed, the row's of going up flange of last switching flange tube 6 covers 10 usefulness bolt with loading to be installed, loading is covered 10 and is installed and fixed back bolt locking positive stop 13, upsetting moment load cylinder group 11, axial force load cylinder group 12 is respectively by pin and floor 1, load and cover 10 connections, radial loaded oil cylinder 9 is by pin and radial loaded frame 7, load and cover 10 connections.
During experiment power assembly 3 under the dragging of ball-screw 17 with the engagement of the gear ring of pivoting support 4, drive wind-powered turntable bearing 4 and anti-bolt and interfere packing ring 5 to rotate together, hydraulic system applies upsetting moment, axial force, radial force respectively by upsetting moment load cylinder group 11, axial force load cylinder group 12,9 pairs of wind-powered turntable bearings of radial force load cylinder.By being installed in the various sensor acquisition signals on the experiment table.
Working method of the present invention is:
The present invention adopts hydraulic way to load, and applies upsetting moment by upsetting moment load cylinder group 11, applies axial force by axial force load cylinder group 12, applies radial force by radial loaded oil cylinder 9, and oil cylinder applies the size of power and passes through regulation of hydraulic system.
Adopt 4 experiments simultaneously of two cover same size wind-powered turntable bearings during experiment, adopt the form of " back-to-back " during installation, at this moment, one cover position under wind-powered turntable bearing 4 on be provided with driving cog a side install down, another set of position is provided with a side of driving cog and installs up on last wind-powered turntable bearing 4, the side that two cover wind-powered turntable bearings 4 are provided with driving cog does not contact each other mutually.If have the phenomenon that bolt is interfered takes place, pad one anti-bolt is interfered packing ring 5 in the middle of two cover wind-powered turntable bearings.Two cover wind-powered turntable bearings pass through down respectively, and joint flange tube 2 is connected with base plate 1. and cover 10 by last joint flange tube 6 with loading and be connected, upper flange tube and lower flange tube all have two row's flanges, wherein a row connects loading lid and bottom plate, flange size is constant, another row's flange connects two pivoting supports respectively, flange size changes with experiment wind-powered turntable bearing specification, measure-alike with the wind-powered turntable bearing mounting hole, as to be mated according to different wind-powered turntable bearing specification manufacturings before each experiment flange tube.
Power assembly 3 mainly is made up of oil motor 20, power assembly slide carriage 21, shaft coupling 22, torque sensor support 23, torque sensor 24, pinion wheel 25, pressing plate 26.Power assembly 3 is dragged by ball-screw 17, can slide along guide rail 19 to change the position, and the status requirement that adaptation different size wind-powered turntable bearing drives is locked the fixed position by pressing plate 26 before the work.
Gather the moment of resistance signal of wind-powered turntable bearing during experiment in real time by torque sensor 24, gather wind-powered turntable bearing raceway wear signal in real time by the displacement transducer that is installed in the wind-powered turntable bearing end face, gather the wind-powered turntable bearing vibration signal in real time by the acceleration transducer that is installed in wind-powered turntable bearing end face and circumference, gather the lubricant temperature signal in real time by the temperature sensor that is installed in oil hole, gather the root stress signal by the foil gauge that is attached to a tooth root of wind-powered turntable bearing gear ring.
Embodiment recited above is described preferred implementation of the present invention; be not that design of the present invention and scope are limited; do not breaking away under the design concept prerequisite of the present invention; common engineering technical personnel make technical scheme of the present invention in this area various modification and improvement; all should fall into protection scope of the present invention, the technology contents that the present invention asks for protection all is documented in claims.
Claims (9)
1, a kind of wind-powered turntable bearing combination property bench, comprise base plate (1), down transfer flange tube (2), power assembly (3), wind-powered turntable bearing (4), on transfer flange tube (6) and load lid (10), switching flange tube (2) removably connects down on the base plate (1), under the wind-powered turntable bearing (4) that removably connects on the flange tube (2) of transferring, it is characterized in that described switching flange tube (2) is down gone up and connect at least one pair of wind-powered turntable bearing (4); Power assembly (3) is provided with pinion wheel (25), inner ring of one or two wind-powered turntable bearing (4) in pinion wheel (25) and a pair of wind-powered turntable bearing (4) or the engagement of outer ring driving cog; Wind-powered turntable bearing (4) top removably connects and goes up switching flange tube (6), loads lid (10) and is removably connected to switching flange tube (6) top.
2, wind-powered turntable bearing combination property bench according to claim 1, when it is characterized in that described wind-powered turntable bearing (4) is one or more pairs of, every pair is that two cover same specifications are taked the wind-powered turntable bearing (4) of " back-to-back " mounting means, closely is connected at least one anti-bolt interference packing ring (5) between wind-powered turntable bearing (4) and the wind-powered turntable bearing (4).
3, wind-powered turntable bearing combination property bench according to claim 1, it is characterized in that described base plate (1) one end is provided with radial force loading frame (7), radial force loading frame (7) is provided with radial oil cylinders holder (8), is provided with radial loaded oil cylinder (9) between radial oil cylinders holder (8) and the loading lid (10).
4, wind-powered turntable bearing combination property bench according to claim 1 is characterized in that described base plate (1) and loads between the lid (10) being provided with upsetting moment load cylinder group (11), and upsetting moment load cylinder group (11) is made up of a pair of oil cylinder at least.
5, wind-powered turntable bearing combination property bench according to claim 1 is characterized in that described base plate (1) and loads between the lid (10) being provided with axial force load cylinder group (12), and axial force load cylinder group (12) is made up of a pair of oil cylinder at least.
6, wind-powered turntable bearing combination property bench according to claim 1, it is characterized in that described base plate (1) is provided with spacing column (14), spacing column (14) is provided with positive stop (13) near loading lid (10) one ends, and positive stop (13) removably connects with spacing column (14).
7, wind-powered turntable bearing combination property bench according to claim 1 is characterized in that described power assembly (3) is provided with oil motor (20) and shaft coupling (22), and shaft coupling (22) connects torque sensor (24) and oil motor (20).
8, wind-powered turntable bearing combination property bench according to claim 1, it is characterized in that described power assembly (3) is provided with servomotor (15), spindle motor mount pad (16), ball-screw (17), mount pad (18) before the leading screw, guide rail (19), power assembly slide carriage (21) and pressing plate (26), power assembly slide carriage (21) is located at that guide rail (19) is gone up and is connected with nut on the ball-screw (17), ball-screw (17) is driven by servomotor (15), servomotor (15) and ball-screw (17) are installed on the base plate (1) by spindle motor mount pad (16) and the preceding mount pad (18) of leading screw, power assembly slide carriage (21) is provided with pressing plate (26), and guide rail (19) is positioned between power assembly slide carriage (21) and the guide rail (19).
9, wind-powered turntable bearing combination property bench according to claim 8 is characterized in that described power assembly slide carriage (21) is provided with torque sensor support (23), and torque sensor support (23) is provided with torque sensor (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810243026A CN100587444C (en) | 2008-12-08 | 2008-12-08 | Wind power turntable bearing comprehensive performance experiment table |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810243026A CN100587444C (en) | 2008-12-08 | 2008-12-08 | Wind power turntable bearing comprehensive performance experiment table |
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| CN101419125A true CN101419125A (en) | 2009-04-29 |
| CN100587444C CN100587444C (en) | 2010-02-03 |
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Effective date of registration: 20191206 Address after: No.18, Xinpu East Road, Jiangbei new area economic development zone, Nanjing City, 211800, Jiangsu Province Patentee after: NANJING GONGDA CNC TECHNOLOGY Co.,Ltd. Address before: 210009 Nanjing City, Jiangsu Province, the new model road No. 5 Co-patentee before: NANJING GONGDA CNC TECHNOLOGY Co.,Ltd. Patentee before: Nanjing Tech University |