CN118188314A - Wind driven generator and control method - Google Patents
Wind driven generator and control method Download PDFInfo
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- CN118188314A CN118188314A CN202410495591.8A CN202410495591A CN118188314A CN 118188314 A CN118188314 A CN 118188314A CN 202410495591 A CN202410495591 A CN 202410495591A CN 118188314 A CN118188314 A CN 118188314A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 214
- 238000005461 lubrication Methods 0.000 claims description 32
- 238000004891 communication Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 15
- 230000001360 synchronised effect Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000009736 wetting Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000012208 gear oil Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
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- 239000004519 grease Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
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- 238000005096 rolling process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 230000002035 prolonged effect Effects 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a wind driven generator and a control method, comprising a driving component arranged between a frame body part and a tower barrel part; the driving assembly comprises a driving oil cylinder, a lever part and a driving connecting rod which are in transmission connection; the driving oil cylinder and the driving connecting rod are respectively hinged with the frame body part and the tower barrel part or respectively hinged with the tower barrel part and the frame body part; the driving oil cylinder drives the driving connecting rod to swing through the lever part, so that the frame body part and the tower barrel part rotate at a relative angle. The invention has reasonable design, compact structure and convenient use.
Description
Technical Field
The invention relates to a wind driven generator and a control method.
Background
Currently, a main shaft bearing used by a wind driven generator is a rolling bearing; the manufacturing cost is high, and the bearing is of a whole circle structure; replacement of the bearings is complicated. The yaw friction plate uses lubricating grease, so that the friction resistance is high; the number of motors is large, and the phenomena of tooth breakage of the yaw large gear are frequently generated.
The wind power generation main shaft bearing is replaced by a sliding bearing, the bearing adopts an upper and lower two-piece structure, the cost is low, the maintenance is easy, the bearing is large, and the high-pressure oil jacking principle is adopted; and the rotating friction force of the main shaft is reduced.
The yaw system adopts a friction plate structure, is lubricated by using lubricating grease, and has high friction resistance. And an active oil feeding jacking mode is adopted, so that the thickness of an oil film is increased, and the sliding friction resistance is reduced.
At present, a large and medium-sized wind turbine generally adopts an electric yaw system to adjust a wind wheel and align the wind wheel with the wind direction. The wind vane is used as an induction element to transmit an electric signal for changing wind direction to a processor of a control loop of the yaw motor, the processor sends a clockwise or anticlockwise yaw command to the yaw motor after comparison, in order to reduce the gyro moment during yaw, the motor speed is reduced through a coaxially-connected speed reducer, the yaw moment acts on a revolving body gear to drive a wind wheel to yaw against wind, and when the electric signal of the wind vane is lost after the wind is against wind, the motor stops working, and the yaw process is finished.
The existing electric-driven yaw device adopts a motor to drive to realize the yaw function, and has the advantages of more motors, higher unsynchronized ratio, large torque and relatively higher cost. The gears are stressed unevenly, and the situation that the gears break teeth exists; particularly, the large gear ring cannot be repaired after being damaged, and only the large gear ring can be hoisted again to replace the large gear ring, so that the large gear ring is difficult to replace, the replacement period is long, and the field installation environment is bad.
Disclosure of Invention
The invention aims to provide a wind driven generator and a control method thereof.
In order to solve the problems, the invention adopts the following technical scheme:
in order to solve the traditional yaw problem, the lever reciprocally drives the wind power yaw device, including setting up the drive assembly between body part and tower section of thick bamboo; the driving assembly comprises a driving oil cylinder, a lever part and a driving connecting rod which are in transmission connection;
the driving oil cylinder and the driving connecting rod are respectively hinged with the frame body part and the tower barrel part or respectively hinged with the tower barrel part and the frame body part;
the driving oil cylinder drives the driving connecting rod to swing through the lever part, so that the frame body part and the tower barrel part rotate at a relative angle.
As a further improvement of the above technical scheme:
in order to realize labor-saving driving, the lever part is of a labor-saving lever structure.
In order to realize continuous driving, the lock pin part is arranged in a telescopic way;
When the fixed end of the oil cylinder is hinged with the frame body or the tower barrel part, a support disc A is arranged on the tower barrel part or the frame body; a clamping hole A is arranged on the support disk A;
a rotary disc is coaxially arranged on one side of the supporting disc A, and a process opening is formed in the rotary disc;
the lock pin part is extended or retracted in the through hole at the root part of the driving connecting rod;
when the frame body rotates, the lock pin part enters the clamping hole A, a piston rod of the driving oil cylinder acts, and the lever part drives the driving connecting rod to swing, so that the lock pin part drives the supporting disc A to rotate for a set angle;
After rotating for a set angle, the lock pin part is retracted and separated from the clamping hole A, a piston rod of the driving oil cylinder reversely acts, and the lever part drives the driving connecting rod to reversely swing, so that the lock pin part returns to an initial position under the limit of the rotating disc and waits for secondary driving.
In order to realize overload protection, the process opening is provided with an opening, and the opening is communicated with the inner cavity of the rotating disc.
In order to facilitate the guiding and assembling, the lock pin part is provided with an electromagnetic or hydraulic control telescopic pin; the end head of the telescopic pin is a spherical head; the clamping hole A is a ball socket.
In order to achieve the overall protection, an apparatus comprises a tower section and a frame section arranged on the tower section;
the turning part and the frame body are arranged between the tower barrel part and the frame body, and the lever is used for driving the wind power yaw device in a reciprocating mode.
In order to realize rotation, a rotation supporting part is arranged at the lower end of the frame body; a rotary matching part is arranged at the upper end of the tower barrel part;
the rotary supporting part is rotatably supported and matched with the rotary matching part.
The invention adopts the hydraulic cylinder for driving, adopts the lever principle, and circularly cooperates for circular driving, thereby realizing the yaw rotating in two directions, reducing the cost of products, reducing the configuration, having simple structure and improving the reliability of products. The lever structure is adopted, the oil cylinder is reduced, the output torque is increased, the clamping groove structure which is easy to replace is adopted, and the maintenance is easy.
By using the oil cylinder for driving, a rod cavity and a rodless cavity of the oil cylinder can be closed by using an electromagnetic valve, so that the braking of the engine room is realized, a yaw brake is not needed, and the structure is greatly simplified.
The cost of replacing the rolling bearing of the wind power generation main shaft bearing with the sliding bearing is high. The yaw system adopts a friction plate structure, is lubricated by using lubricating grease, and reduces sliding friction resistance.
In order to solve the problems, the invention adopts the following technical scheme:
In order to realize the support of the main shaft part and reduce resistance and abrasion, a wind motor lubrication lifting auxiliary comprises an oil tank arranged on a frame body; a main shaft member is rotated in the frame body;
a main shaft bearing part is arranged between the frame body part and the main shaft piece; the main shaft bearing part comprises a lower half-shaft shoe component and an upper half-shaft shoe component which are oppositely wrapped around the main shaft part;
Lubricating oil is stored in the oil tank, and an oil film is arranged between the main shaft piece and the main shaft bearing part and/or an oil film is arranged between the main shaft piece and the main shaft bearing part;
the oil tank is output with a second oil way and/or a first oil way; the second oil path provides oil to the upper half axle shoe assembly and forms an oil film and/or the first oil path provides oil to the lower half axle shoe assembly and forms an oil film.
As a further improvement of the above technical scheme:
In order to reasonably distribute oil, ensure that the main shaft stably rotates and realize centralization and avoid shaking, the output end of the second oil circuit is connected with an upper oil distribution pipeline;
The upper oil distribution pipeline is hydraulically connected with the upper oil distribution pipeline, and the first oil way is hydraulically connected with the lower half axle shoe component;
A second pump group is arranged on the second oil way;
A first pump group and a main unidirectional valve group are arranged on the first oil way.
In order to ensure the normal operation of the pipeline system, the output end of the first oil way is respectively connected with a reflux bypass connected with an oil tank and a pressurizing pipeline;
A synchronous motor group is arranged on the pressurizing pipeline;
the output end of the synchronous motor group is respectively connected with a jacking pipeline and a lower jacking pipeline;
in order to realize integration, a yaw sliding friction piece which is a part of a yaw assembly is arranged between the frame body part and the tower barrel part;
The jacking pipeline is connected with a yaw sliding friction piece;
The lower pipe is connected with a lower half axle shoe component.
In order to ensure normal operation, a pressurizing pump filter and a bypass check valve are connected in parallel on the pressurizing pipeline;
the filter of the booster pump and the bypass check valve are arranged at the input end of the synchronous motor group.
In order to realize accurate oil distribution, full lubrication and reasonable force supply, an upper communication hole is arranged at the top of the upper half bearing bush assembly, and an upper connection port for connecting an upper oil distribution pipeline is arranged at the top of the upper communication hole;
A lower communication hole is vertically and radially arranged at the bottom of the lower half bearing bush component,
The lower connecting port communicated with the lower pipe is arranged at the lower end of the lower communication hole;
A ring groove part is arranged in the middle of the main shaft bearing part;
The lower connecting port and the upper connecting port are arranged in the ring groove part;
An oil storage process groove positioned at the bottom of the inner side wall of the lower half-axle shoe component is arranged at the upper part of the lower communication hole;
for convenient assembly, the upper half bearing bush component and the lower half bearing bush component are combined with the inner side wall to form a side unfilled corner.
In order to ensure the safety of the system, a safety valve is arranged on the reflux bypass;
the second oil path is also provided with a second one-way valve, a second lubrication filtering part and/or a cooler.
In order to realize that the friction yaw sliding friction piece comprises a friction plate group, an oil through hole is arranged on the friction plate group; the oil hole is communicated with a jacking pipeline; the friction plate group comprises an upper wear-resistant pad, a side wear-resistant pad and a lower wear-resistant pad which are connected in sequence.
In order to reduce accessories, fully utilize space and oil, a gear set is arranged in an oil tank, and gear oil of the gear set is arranged in the oil tank;
The second oil way is branched with a tooth wetting pipeline; the gear wetting pipeline output end is provided with a gear set for filling the gear set with lubricant.
As an extension protection, an apparatus includes a tower section and a frame section disposed above the tower section; a yaw assembly is arranged between the tower barrel part and the frame body part;
The wind power motor lubrication lifting auxiliary is arranged on the frame body.
The invention has the beneficial effects that: 1. the cost of the main shaft bearing is reduced; 2. the friction force of the main shaft and the yaw friction plate is reduced; the useless loss is reduced; and the generating capacity is increased. 3. The bearing bush adopts an upper structure and a lower structure, the bearing is replaced without being hoisted again, and the bearing can be replaced on the fan. 4. And the common gear set lubrication system has low cost. 5. Gear oil is used as a medium, so that the gear oil can be recycled; no waste of grease; 6. and the heat dissipation and filtration system is added to the main bearing and the yaw friction plate, so that the ambient temperature of the bearing is improved, and the service life of the bearing is prolonged. 7. Yaw torque is reduced and the number of drives is reduced.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of the driving assembly structure of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic view of the lever part structure of the present invention.
Fig. 5 is a schematic diagram of the usage structure of the process opening extension protection of the present invention.
Fig. 6 is a schematic view of a further improved support plate B structure of the present invention.
Fig. 7 is a schematic view of the external use structure of the tower section of the present invention.
Fig. 8 is a schematic view of the friction pad structure of the present invention.
Fig. 9 is a schematic view of the hydraulic principle structure of the present invention.
Fig. 10 is a schematic view of the internal structure of the frame body of the present invention.
FIG. 11 is a schematic view of the upper half shoe assembly of the present invention in use configuration.
Wherein: wherein: 1. a frame body part; 2. a tower section; 3. a drive assembly; 4. a rotation support part; 5. a rotary fitting portion; 6. a driving oil cylinder; 7. a lever part; 8. a drive link; 9. a fixed end of the oil cylinder; 10. a lever fulcrum portion; 11. a lock pin portion; 12. a support plate A; 13. a clamping hole A; 14. a rotating disc; 15. a process opening; 16. a support plate B; 17. and a clamping hole B.
20. An oil tank; 21. a gear set; 22. tooth wetting pipelines; 24. a main shaft bearing part; 25. a yaw sliding friction member; 26. a first pump group; 27. a reflux bypass; 28. a safety valve; 29. a first oil passage; 30. a master check valve set; 31. a pressurizing pump filter; 32. a bypass check valve; 33. a lower top pipeline; 34. a synchronous motor group; 35. a second oil path; 36. a second pump group; 37. a second one-way valve; 38. a second lubrication filter portion; 39. a cooler; 40. an upper oil distribution pipeline; 41. the oil through hole is formed; 42. a friction plate group; 43. a lower half-axle shoe assembly; 44. an upper half-axle shoe assembly; 45. a main shaft member; 46. jacking a pipeline; 47. an upper connection port; 48. an upper communication hole; 49. side unfilled corners; 50. a lower connecting port; 51. a ring groove part; 52. a lower communication hole; 53. an oil storage process tank; 54. a lower wear pad; 55. an upper wear pad; 56. and a side wear pad.
Detailed Description
As shown in fig. 1 to 6, the lever-driven wind power yaw device and the device of the present embodiment, the lever-driven wind power yaw device comprises a driving component 3 arranged between a frame body 1 and a tower section 2; the driving assembly 3 comprises a driving oil cylinder 6, a lever part 7 and a driving connecting rod 8 which are in transmission connection; accurate driving is realized through the link mechanism, and the installation, maintenance and replacement are convenient.
The driving oil cylinder 6 and the driving connecting rod 8 are respectively hinged with the frame body part 1 and the tower cylinder part 2 or respectively hinged with the tower cylinder part 2 and the frame body part 1; the expression means that the positions of the two are replaced, and the installation mode is not limited to the installation mode of the drawings.
The driving oil cylinder 6 drives the driving connecting rod 8 to swing through the lever part 7, so that the frame body part 1 and the tower barrel part 2 rotate at a relative angle.
The lever part 7 is of a labor-saving lever structure, so that power is saved, and long-distance accurate control is realized.
As a specific link structure, the cylinder fixing end 9 at the root of the driving cylinder 6 and the lever fulcrum part 10 at the root of the lever part 7 are respectively hinged on the frame body part 1, and the root of the driving link 8 is hinged on the tower cylinder part 2 through a lock pin part 11, or the cylinder fixing end 9 at the root of the driving cylinder 6 and the lever fulcrum part 10 at the root of the lever part 7 are respectively hinged on the tower cylinder part 2, and the root of the driving link 8 is hinged on the frame body part 1 through a lock pin part 11;
the end part of the driving oil cylinder 6 is hinged with the end part of the lever part 7; the end of the driving link 8 is hinged to the middle of the lever part 7, and the like, but may be positioned.
The drive cylinder 6 and the drive link 8 are provided on both sides of the lever portion 7, respectively, and may be provided on one side.
The lock pin part 11 is arranged in a telescopic way; the clamping position realizes transmission when the device stretches out, and the device realizes disconnection transmission after the device retracts, so as to realize automatic reset.
When the oil cylinder fixed end 9 is hinged with the frame body part 1 or the tower barrel part 2, a support disc A12 is arranged on the tower barrel part 2 or the frame body part 1; a clamping hole A13 is arranged on the support disk A12; if the telescopic pin is used as a technical evasion, the telescopic pin and the clamping hole are interchanged to form the same structure.
A rotating disc 14 is coaxially arranged on one side of the supporting disc A12, and a process notch 15 is arranged on the rotating disc 14 to ensure that the lock pin part 11 is guided in place, thereby ensuring accurate reset and pushing positioning each time.
The lock pin part 11 is extended or retracted in the through hole at the root part of the driving connecting rod 8, so that the locking or the unlocking is realized;
As the limitation of the action state, when the frame body 1 rotates, the lock pin part 11 enters the clamping hole a13, the piston rod of the driving oil cylinder 6 acts, and the lever part 7 drives the driving connecting rod 8 to swing, so that the lock pin part 11 drives the supporting disc a12 to rotate for a set angle; at the same time, braking can be achieved.
After rotating for a set angle, the lock pin part 11 is retracted and separated from the clamping hole A13, the piston rod of the driving oil cylinder 6 acts reversely, and the lever part 7 drives the driving connecting rod 8 to swing reversely, so that the lock pin part 11 returns to the initial position under the limitation of the rotating disc 14 and waits for secondary driving. Continuous driving can be realized through a plurality of oil cylinders.
The process opening 15 is provided with an opening, and the opening is communicated with the inner cavity of the rotary disk 14, so that the process opening is convenient to open and position adjustment, and when the driving force is greater than a set value, the process opening can be separated by disengaging the radian of the opening.
In order to maintain a balanced drive, it is preferable to use a support disk B16 on the other side of the rotating disk 14, alone or in combination; the support plate B16 corresponds to the support plate a12, and the detent hole a corresponds to the detent hole B17, and the two holes may be connected by a connecting frame, or may be omitted.
As a specific description, the lock pin portion 11 has an electromagnetically or hydraulically controlled telescopic pin; the end head of the telescopic pin is a spherical head; the clamping hole A is a ball socket, which can realize good guiding, and can also be provided with protection ranges or equivalent in conicity, pyramid, cylinder or chamfer and the like.
The device of the embodiment comprises a tower section 2 and a frame body 1 arranged on the tower section 2;
A turning part and the lever are arranged between the tower barrel part 2 and the frame body part 1 to drive the wind power yaw device in a reciprocating manner. Can be a slewing bearing, and realizes flexible rotation. The drive mechanism may be fixed to either side of the tower or nacelle.
A rotary support part 4 is arranged at the lower end of the frame body part 1; a rotary matching part 5 is arranged at the upper end of the tower barrel part 2;
The swivel support part 4 is rotatably supported and engaged with the swivel engagement part 5.
The driving cylinder 6 may be an electric push rod or the like.
The fixed end and the rotating end can be interchanged, and the relative movement can be realized.
The invention adopts the oil cylinder to drive the lever to control the yaw of the fan cabin, is not limited to the hydraulic oil cylinder, and other linear power elements are also in the protection scope. The reciprocating action of the lever mechanism is realized through the reciprocating action of the oil cylinder, and the driving connecting rod continuously rotates through the pin shaft (steel ball, claw and the like) yaw system. The yaw angle can be locked through the oil inlet and outlet of the closed oil cylinder. The invention adopts the oil cylinder as a power source for driving, so that all motors are omitted, the oil cylinder runs alternately, uninterrupted gear rotation is realized, the product cost is reduced, the complexity of the product is reduced, and the reliability of the product is provided.
The invention adopts the hydraulic cylinder for driving, adopts the lever principle, and circularly cooperates for circular driving, thereby realizing the yaw rotating in two directions, reducing the cost of products, reducing the configuration, having simple structure and improving the reliability of products.
The invention adopts a lever structure, reduces the oil cylinder and increases the output torque. The clamping groove structure easy to replace is adopted, and the maintenance is easy. The hydraulic driving device is hydraulically driven, has high synchronization rate, is driven by the oil cylinder, can use the electromagnetic valve to seal the rod cavity and the rodless cavity of the oil cylinder, realizes the braking of the engine room, and does not need a yaw brake.
As shown in fig. 1-11, the wind motor lubrication lifting auxiliary of the embodiment comprises an oil tank 20 arranged on a frame body part 1, which is used for realizing lubrication of all parts; as a conventional arrangement, a main shaft member 45 is rotated in the frame body 1;
As an improved position, a spindle bearing portion 24 is provided between the frame body portion 1 and the spindle member 45; the main shaft bearing portion 24 includes a lower half shoe assembly 43 and an upper half shoe assembly 44 which are oppositely wrapped around a main shaft member 45; the bearing bush is used for replacing a bearing, so that the assembly is convenient, the static pressure support is realized, and the eccentric wear of the bearing caused by inclination and gravity is avoided.
The oil tank 20 stores lubricating oil, and an oil film is provided between the main shaft 45 and the main shaft bearing portion 24 and/or an oil film is provided between the main shaft 45 and the main shaft bearing portion 24; thereby reducing wear.
The oil tank 20 outputs a second oil passage 35 and/or a first oil passage 29; the oil pressure of the second oil passage 35 is smaller than the oil pressure of the first oil passage 29;
The second oil passage 35 provides oil to the upper half shoe assembly 44 and forms an oil film and/or the first oil passage 29 provides oil to the lower half shoe assembly 43 and forms an oil film.
As reasonable configuration, the output end of the second oil path 35 is connected with an upper oil distribution pipeline 40;
The upper oil distribution line 40 is hydraulically connected to the upper oil distribution line 40, and the first oil line 29 is hydraulically connected to the lower half-axle shoe assembly 43;
A second pump unit 36 is provided in the second oil passage 35;
The first oil passage 29 is provided with a first pump group 26 and a main check valve group 30, thereby realizing high-pressure oil supply and backflow prevention.
The output end of the first oil path 29 is respectively connected with a reflux bypass 27 connected with the oil tank 20 and a pressurizing pipeline;
a synchronous motor group 34 is arranged on the pressurizing pipeline, so that linkage is realized, and oil is fed to parts needing high-pressure floating; therefore, the output end of the synchronous motor set 34 is respectively connected with the jacking pipeline 46 and the lower jacking pipeline 33; a yaw sliding friction member 25 as a part of the yaw assembly is provided between the frame body 1 and the tower 2; the jacking pipeline 46 is connected with a yaw sliding friction piece 25 so as to feed oil to the friction plate;
The lower top line 33 connects the lower half shoe assembly 43.
The pressurizing pipeline is connected with a pressurizing pump filter 31 and a bypass check valve 32 in parallel so as to realize the guarantee of filtration and safe operation;
the booster pump filter 31 and the bypass check valve 32 are arranged at the input end of the synchronous motor group 34, so that the motor group with higher manufacturing cost is protected, the step-by-step boosting is realized through secondary oil feeding, the cost is reduced, and meanwhile, the oil circulation is ensured.
An upper communication hole 48 is formed at the top of the upper half-shaft shoe assembly 44, and an upper connection port 47 for connecting the upper oil distribution pipeline 40 is formed at the top of the upper communication hole 48; thereby realizing oil feeding lubrication, supporting and reducing friction. A lower communication hole 52 is vertically and radially provided at the bottom of the lower half bearing shell assembly 43,
A lower connection port 50 communicating with the lower top pipeline 33 is provided at the lower end of the lower communication hole 52;
a ring groove 51 is provided in the middle of the main shaft bearing 24; thereby realizing the accumulation of the lubricating liquid and the full lubrication of each part.
The lower connection port 50 and the upper connection port 47 are provided in the annular groove portion 51; the manufacturability is good.
An oil storage process groove 53 positioned at the bottom of the inner side wall of the lower half axle shoe assembly 43 is arranged at the upper part of the lower communication hole 52; the storage of oil liquid is realized, the lubrication area is increased, the full lubrication is realized, the contact area of the jacking is increased, and the full contact is realized.
The upper half bearing bush assembly 44 and the lower half bearing bush assembly 43 are combined with an inner side wall provided with a side unfilled corner 49, and a reasonable cohesion main shaft is realized.
A relief valve 28 is provided in the return bypass 27;
The second oil passage 35 is further provided with a second check valve 37, a second lubrication filter portion 38, and/or a cooler 39. As to achieve the reduction of friction and the realization of sufficient contact, the yaw sliding friction member 25 includes a friction plate group 42, and an oil passage hole 41 is provided on the friction plate group 42; the oil hole 41 is communicated with a jacking pipeline 46; the friction plate group 42 comprises an upper wear-resistant pad 55, a side wear-resistant pad 56 and a lower wear-resistant pad 54 which are sequentially connected, the supporting and positive pressure are realized through the upper and lower pads, the side centering is realized through the side parts, the sloshing is avoided, and the normal operation is ensured.
As full utilization, the patent further abandons the traditional independent oil tank, and the gear set 21 is arranged in the oil tank 20, so that full soaking and utilization are realized, and the gear oil of the gear set 21 is arranged in the oil tank 20; as a high integration, the second oil path 35 branches into a tooth wetting pipeline 22; the gear wetting pipeline 22 is provided with a gear set 21 at the output end for filling the gear set 21 with lubricant, thereby realizing filling of oil liquid to the upper top and the gear part at low pressure.
The device of the embodiment comprises a tower barrel 2 and a frame body 1 arranged above the tower barrel 2; a yaw assembly is arranged between the tower barrel part 2 and the frame body part 1;
The frame body 1 is provided with the wind turbine lubrication lifting auxiliary.
As an illustration of the overall working principle. First, the oil is stored in the oil tank 20 of the gear set 21, and two oil paths are output, the first oil path 29 outputs the first oil through the first pump unit 26, and the second oil path 35 outputs the second oil through the second pump unit 36.
In the first oil, the main shaft bearing part 24 and the yaw sliding friction piece 25 are simultaneously supplied with oil through the synchronous motor group 34, so that static pressure support is realized and oil is returned to the oil tank 20;
in the second oil, oil is supplied to the upper half shoe assembly 44 and the gear set 21 respectively, thereby achieving lubrication by filling oil.
As shown in fig. 1 to 11, the wind power generator of the present embodiment includes a tower section 2 and a frame section 1 provided above the tower section 2; a yaw assembly is arranged between the tower barrel part 2 and the frame body part 1;
A wind motor lubrication lifting auxiliary is arranged on the frame body part 1; a main shaft 45 is rotatably provided in the frame body 1. A rotary support part 4 is arranged at the lower end of the frame body part 1; a rotary matching part 5 is arranged at the upper end of the tower barrel part 2; the rotary supporting part 4 is in rotary supporting fit with the rotary matching part 5;
a main shaft bearing portion 24 is provided between the rotation support portion 4 and the rotation engagement portion 5;
The wind motor lubrication lifting auxiliary comprises an oil tank 20 arranged on the frame body part 1.
The control method of the wind driven generator of the embodiment is realized by the wind driven generator; the control method comprises a lubrication lifting step and/or a yaw step.
In the lubrication lifting step, firstly, oil is stored in an oil tank 20 of a gear set 21 and two paths are output, a first oil path 29 outputs first oil through a first pump set 26, and a second oil path 35 outputs second oil through a second pump set 36;
In the first oil, the main shaft bearing part 24 and the yaw sliding friction piece 25 are simultaneously supplied with oil through the synchronous motor group 34, so that static pressure support is realized and oil is returned to the oil tank 20;
In the second oil liquid, oil is respectively supplied to the upper half axle shoe assembly 44 and the gear set 21, so that oil liquid filling lubrication is realized;
In the yaw step, when the frame body 1 rotates, the lock pin part 11 enters the clamping hole A13, a piston rod of the driving oil cylinder 6 acts, and the lever part 7 drives the driving connecting rod 8 to swing, so that the lock pin part 11 drives the supporting disc A12 to rotate for a set angle;
After rotating for a set angle, the lock pin part 11 is retracted and separated from the clamping hole A13, a piston rod of the driving oil cylinder 6 acts reversely, the lever part 7 drives the driving connecting rod 8 to swing reversely, and the lock pin part 11 returns to the initial position under the limit of the rotating disc 14 to wait for the secondary driving yaw.
The invention skillfully applies the oil return pipeline to gear lubrication, thereby utilizing the pressure in the oil return pipeline, realizing full utilization of energy, and realizing pressure release by using the oil return pipeline for lubricating the gear. The main check valve group 30 prevents backflow, the booster pump filter 31 realizes filtration, the bypass check valve 32 ensures safe oil supply, the lower top pipeline 33 realizes oil supply top bearing bush and friction plate lower part, the second check valve 37 realizes backflow, the second lubrication filter part 38 realizes filtration, the cooler 39 realizes temperature regulation, the upper oil distribution pipeline 40 realizes oil supply through the oil through hole 41, as improvement, the jacking pipeline 46 realizes upper top, connection through the upper connection port 47, downward oil dripping is realized through the upper communication hole 48, the side unfixed angle 49 is convenient to install and lock, the lower connection port 50 is convenient to connect, the ring groove part 51 realizes full storage of oil, the lower communication hole 52 realizes oiling, the oil storage process groove 53 realizes storage, the contact area is increased, the upper wear pad 55, the side wear pad 56 and the lower wear pad 54 realize full support of the friction plate group 42, the interval is generated, and the centering and lifting are realized.
In summary, through the above-described individual embodiments or combinations thereof, the present patent can achieve the following effects:
1. The main shaft sliding bearing replaces a rolling bearing, and the friction force is reduced by lifting the main shaft by high-pressure oil. 2. The yaw friction plate increases high-pressure jacking oil, and reduces yaw friction force (prolongs the replacement time of the friction plate). 3. The gear set lubrication, the main shaft jacking lubrication and the yaw jacking lubrication are integrated. The main shaft bearing adopts an upper bearing bush structure and a lower bearing bush structure; the slotting of the lower bearing bush increases the jacking area of the main shaft. When the bottom is lifted for lubrication, the bottom is grooved, so that the lifting area of the main shaft is increased. The top part is lubricated in a spraying way, and the flow of each component can be adjusted by the synchronous motor according to the requirement.
The present invention is fully described for more clarity of disclosure and is not set forth in the prior art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the 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 scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; it is obvious to a person skilled in the art to combine several embodiments of the invention. Such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A wind power generator, characterized in that: comprises a tower cylinder part (2) and a frame body part (1) arranged above the tower cylinder part (2); a yaw component is arranged between the tower barrel part (2) and the frame body part (1);
A wind motor lubrication lifting auxiliary is arranged on the frame body (1); a main shaft member (45) is rotatably provided in the frame body (1).
2. A wind power generator as claimed in claim 1, wherein: a rotary supporting part (4) is arranged at the lower end of the frame body part (1); a rotary matching part (5) is arranged at the upper end of the tower barrel part (2);
The rotary supporting part (4) is rotatably supported and matched with the rotary matching part (5);
A main shaft bearing part (24) is arranged between the rotary supporting part (4) and the rotary matching part (5);
The wind motor lubrication lifting auxiliary comprises an oil tank (20) arranged on the frame body (1).
3. A wind power generator as claimed in claim 2, wherein: the main shaft bearing part (24) comprises a lower half-axle shoe component (43) and an upper half-axle shoe component (44) which are oppositely wrapped around a main shaft piece (45);
Lubricating oil is stored in the oil tank (20), and an oil film is arranged between the main shaft member (45) and the main shaft bearing part (24) and/or an oil film is arranged between the main shaft member (45) and the main shaft bearing part (24);
The oil tank (20) is output with a second oil way (35) and/or a first oil way (29); the second oil path (35) provides oil to the upper half shoe assembly (44) and forms an oil film and/or the first oil path (29) provides oil to the lower half shoe assembly (43) and forms an oil film.
4. A wind power generator as claimed in claim 3, wherein: the output end of the second oil way (35) is connected with an upper oil distribution pipeline (40);
the upper oil distribution pipeline (40) is hydraulically connected with the upper oil distribution pipeline (40), and the first oil way (29) is hydraulically connected with the lower half-axle shoe component (43);
the oil pressure of the second oil passage (35) is smaller than the oil pressure of the first oil passage (29);
A first pump group (26) and a main unidirectional valve group (30) are arranged on the first oil way (29);
the output end of the first oil way (29) is respectively connected with a reflux bypass (27) connected with the oil tank (20) and a pressurizing pipeline;
A synchronous motor group (34) is arranged on the pressurizing pipeline;
the output end of the synchronous motor group (34) is respectively connected with a jacking pipeline (46) and a lower jacking pipeline (33);
a yaw sliding friction piece (25) which is a part of a yaw assembly is arranged between the frame body part (1) and the tower cylinder part (2);
The jacking pipeline (46) is connected with a yaw sliding friction piece (25);
The lower pipe jacking pipeline (33) is connected with a lower half axle shoe assembly (43);
a pressurizing pump filter (31) and a bypass check valve (32) are connected in parallel on the pressurizing pipeline;
The pressurizing pump filter (31) and the bypass check valve (32) are arranged at the input end of the synchronous motor group (34);
an upper communication hole (48) is formed in the top of the upper half axle bush assembly (44), and an upper connection port (47) for connecting an upper oil distribution pipeline (40) is formed in the top of the upper communication hole (48);
a lower communication hole (52) is vertically and radially arranged at the bottom of the lower half axle bush component (43),
A lower connecting port (50) communicated with the lower top pipeline (33) is arranged at the lower end of the lower communication hole (52);
a ring groove part (51) is arranged in the middle of the main shaft bearing part (24);
the lower connecting port (50) and the upper connecting port (47) are arranged in the ring groove part (51);
An oil storage process groove (53) positioned at the bottom of the inner side wall of the lower half axle shoe component (43) is arranged at the upper part of the lower communication hole (52);
The upper half axle shoe component (44) and the lower half axle shoe component (43) are combined with an inner side wall to be provided with a side unfilled corner (49).
5. A wind power generator as claimed in claim 3, wherein: a relief valve (28) is provided in the return bypass (27);
a second one-way valve (37), a second lubrication filtering part (38) and/or a cooler (39) are also arranged on the second oil way (35);
The yaw sliding friction piece (25) comprises a friction plate group (42), and an oil hole (41) is formed in the friction plate group (42); the oil hole (41) is communicated with a jacking pipeline (46); the friction plate group (42) comprises an upper wear-resistant pad (55), a side wear-resistant pad (56) and a lower wear-resistant pad (54) which are connected in sequence;
The gear set (21) is arranged in the oil tank (20), and gear oil of the gear set (21) is arranged in the oil tank (20);
The second oil way (35) is branched with a tooth wetting pipeline (22); the output end of the tooth wetting pipeline (22) is provided with a gear set (21) for filling the gear set (21) with lubricant.
6. Wind power generator according to any of claims 1-5, characterized in that: the yaw assembly comprises a driving assembly (3) arranged between the frame body part (1) and the tower cylinder part (2); the driving assembly (3) comprises a driving oil cylinder (6), a lever part (7) and a driving connecting rod (8) which are in transmission connection;
The driving oil cylinder (6) and the driving connecting rod (8) are respectively hinged with the frame body part (1) and the tower barrel part (2) or respectively hinged with the tower barrel part (2) and the frame body part (1);
The driving oil cylinder (6) drives the driving connecting rod (8) to swing through the lever part (7) so that the frame body part (1) and the tower barrel part (2) rotate at a relative angle.
7. A wind power generator as claimed in claim 3, wherein: the lever part (7) is of a labor-saving lever structure; the oil cylinder fixed end (9) at the root of the driving oil cylinder (6) and the lever fulcrum part (10) at the root of the lever part (7) are respectively hinged on the frame body part (1), the root of the driving connecting rod (8) is hinged on the tower barrel part (2) through a lock pin part (11), or the oil cylinder fixed end (9) at the root of the driving oil cylinder (6) and the lever fulcrum part (10) at the root of the lever part (7) are respectively hinged on the tower barrel part (2), and the root of the driving connecting rod (8) is hinged on the frame body part (1) through the lock pin part (11);
The end part of the driving oil cylinder (6) is hinged with the end part of the lever part (7);
The end of the driving connecting rod (8) is hinged on the lever part (7).
8. A wind power generator as claimed in claim 3, wherein: the driving oil cylinder (6) and the driving connecting rod (8) are respectively arranged at two sides of the lever part (7);
the end part of the driving connecting rod (8) is hinged with the middle part of the lever part (7);
The lock pin part (11) is arranged in a telescopic way;
When the oil cylinder fixed end (9) is hinged with the frame body (1) or the tower barrel (2), a support disc A (12) is arranged on the tower barrel (2) or the frame body (1); a clamping hole A (13) is arranged on the supporting disk A (12);
A rotary disc (14) is coaxially arranged at one side of the support disc A (12), and a process opening (15) is formed in the rotary disc (14);
the lock pin part (11) is arranged in the through hole at the root part of the driving connecting rod (8) in an extending or retracting way;
the process opening (15) is provided with an opening, and the opening is communicated with the inner cavity of the rotating disc (14);
a supporting disk B (16) is arranged on the other side of the rotating disk (14); the support plate B (16) corresponds to the support plate A (12), and the clamping holes A and the clamping holes B (17) are correspondingly arranged;
the lock pin part (11) is provided with an electromagnetic or hydraulic control telescopic pin; the end head of the telescopic pin is a spherical head; the clamping hole A is a ball socket.
9. A control method of a wind driven generator is characterized in that: wind power generator according to any of claims 1-8; the control method comprises a lubrication lifting step and/or a yaw step.
10. The control method of a wind power generator according to claim 9, wherein: in the lubrication jacking step, firstly, oil is stored in an oil tank (20) of a gear set (21) and is output into two paths, a first oil path (29) outputs first oil through a first pump set (26), and a second oil path (35) outputs second oil through a second pump set (36);
in the first oil liquid, the main shaft bearing part (24) and the yaw sliding friction piece (25) are simultaneously supplied with oil through the synchronous motor group (34), so that static pressure support is realized and oil is returned to the oil tank (20);
in the second oil liquid, oil is respectively fed to the upper half axle shoe component (44) and the gear set (21), so that oil liquid filling lubrication is realized;
In the yaw step, when the frame body (1) rotates, the lock pin part (11) enters the clamping hole A (13), a piston rod of the driving oil cylinder (6) acts, and the lever part (7) drives the driving connecting rod (8) to swing, so that the lock pin part (11) drives the supporting disc A (12) to rotate for a set angle;
After the rotation setting angle, the lock pin part (11) is retracted and separated from the clamping hole A (13), a piston rod of the driving oil cylinder (6) acts reversely, the lever part (7) drives the driving connecting rod (8) to swing reversely, and the lock pin part (11) returns to the initial position under the limit of the rotating disc (14) to wait for the secondary driving yaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410495591.8A CN118188314A (en) | 2024-04-24 | 2024-04-24 | Wind driven generator and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410495591.8A CN118188314A (en) | 2024-04-24 | 2024-04-24 | Wind driven generator and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118188314A true CN118188314A (en) | 2024-06-14 |
Family
ID=91402644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410495591.8A Pending CN118188314A (en) | 2024-04-24 | 2024-04-24 | Wind driven generator and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118188314A (en) |
-
2024
- 2024-04-24 CN CN202410495591.8A patent/CN118188314A/en active Pending
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