CN216077406U - Yaw brake structure of wind generating set - Google Patents
Yaw brake structure of wind generating set Download PDFInfo
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- CN216077406U CN216077406U CN202122432519.5U CN202122432519U CN216077406U CN 216077406 U CN216077406 U CN 216077406U CN 202122432519 U CN202122432519 U CN 202122432519U CN 216077406 U CN216077406 U CN 216077406U
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- bottom plate
- cabin bottom
- yaw
- driftage
- wind generating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The application discloses wind generating set driftage braking structure relates to wind power technology field, including setting up in the tower section of thick bamboo top flange on tower section of thick bamboo top, set up in the cabin bottom plate on tower section of thick bamboo top and set up the slidingtype driftage bearing between tower section of thick bamboo top flange and cabin bottom plate, the cabin bottom plate is provided with a plurality of driftage hydraulic brake that are used for carrying out the braking to the cabin bottom plate, a plurality of mounting grooves have been seted up to the lateral wall of cabin bottom plate, the grooving with the mounting groove intercommunication is seted up to the corresponding mounting groove of cabin bottom plate, the cabin bottom plate is provided with the friction disc in the mounting groove is removable, the both ends of friction disc butt driftage hydraulic brake and driftage ring gear respectively. This application utilizes cabin bottom plate space to improve wind generating set driftage braking force, reduces the not enough driftage part damage that arouses of slidingtype driftage bearing braking force, is convenient for simultaneously observe the friction disc wearing and tearing and change the friction disc.
Description
Technical Field
The invention relates to the technical field of wind power, in particular to a yaw braking structure of a wind generating set.
Background
The yawing system can ensure that the impeller of the wind turbine generator is always in a front windward state, and the wind power received by the wind turbine generator in the front windward state is the largest, so that the wind power utilization efficiency is the highest, the wind energy is utilized to the maximum degree, and the power generation efficiency is improved. The sliding type yaw bearing can bear larger load, a brake and a hydraulic device are omitted, the manufacturing is relatively simple, the cost of the whole yaw system is reduced, and therefore the sliding type yaw bearing is gradually adopted by megawatt wind turbine sets.
However, the gravity load of the engine room is large, and the aerodynamic load of the blades is influenced by wind randomness to change complicatedly, so that the situation of frictional damping between a sliding block and a large gear ring of the sliding type yaw system is complicated, and faults such as overlarge load of a yaw speed reducer or abnormal abrasion of the sliding block are easily caused.
Disclosure of Invention
In order to improve the problem that braking force of the sliding type yaw bearing is insufficient under some working conditions, the yaw braking structure of the wind generating set is provided.
The application provides a wind generating set driftage braking structure adopts following technical scheme:
the utility model provides a wind generating set driftage braking structure, including set up in tower section of thick bamboo top flange on tower section of thick bamboo top, set up in the cabin bottom plate on tower section of thick bamboo top and set up in tower section of thick bamboo top flange with slidingtype driftage bearing between the cabin bottom plate, the cabin bottom plate be provided with a plurality of be used for right the cabin bottom plate carries out the driftage hydraulic brake of braking, its characterized in that:
the lateral wall of the cabin bottom plate is provided with a plurality of mounting grooves, the cabin bottom plate is provided with cutting grooves communicated with the mounting grooves corresponding to the mounting grooves, the cabin bottom plate is detachably provided with a friction plate in the mounting grooves, and two ends of the friction plate are respectively abutted against the yawing hydraulic brake and the yawing gear ring of the sliding type yawing bearing.
Through adopting above-mentioned technical scheme, when the fan needs the yaw, the cabin can rotate in tower section of thick bamboo top flange upper end under slidingtype driftage hydraulic bearing's the bearing, when the cabin is just to the wind direction, when the fan aircraft nose needs to the wind locking, driftage hydraulic brake increases slidingtype driftage bearing's frictional force through pressing down the friction disc, thereby brake the cabin bottom plate, and then make the cabin stall, when the degree of wear of friction disc is great, the brake force of friction disc is not enough, because the friction disc is removable on the mounting groove, make the friction disc be convenient for install and dismantle, make and to change old friction disc into new friction disc, thereby increase the holistic brake force of system, when needing to take out or install the friction disc, can take out the friction disc from the mounting groove through the grooving, it is comparatively convenient to make taking out and installing to the friction disc.
Optionally, a through hole is formed in the nacelle baseplate corresponding to the yaw hydraulic brake in a penetrating manner in the thickness direction of the nacelle baseplate, a compression column is formed in the nacelle baseplate at the through hole in a penetrating manner, and the compression column is respectively abutted against the friction plate and the yaw hydraulic brake.
Through adopting above-mentioned technical scheme, make the both ends of compression leg contact friction disc and driftage hydraulic brake respectively through the through-hole, driftage hydraulic brake can press the friction disc through the compression leg to brake the cabin bottom plate.
Optionally, a second threaded hole is formed in the upper surface of the compression leg.
By adopting the technical scheme, when the compression leg needs to be taken out and replaced, the screw rod is screwed in through the second threaded hole, and the compression leg can be taken out through the lifting of the screw rod.
Optionally, a stop block is detachably arranged on the side wall of the bottom plate of the nacelle corresponding to the cutting groove, and the stop block abuts against the friction plate.
By adopting the technical scheme, when the friction plate normally works, the stop block is arranged at the side wall of the bottom plate of the engine room, so that the friction plate is abutted to limit the deviation of the friction plate, and when the friction plate needs to be replaced, the stop block is detached, so that the friction plate can be pulled out of the cutting groove and replaced.
Optionally, a fastening bolt penetrates through the stop block through a thread, and the fastening bolt penetrates through the stop block and is screwed into the side wall of the cabin bottom plate.
Through adopting above-mentioned technical scheme, through rotatory fastening bolt, make fastening bolt can install and dismantle the dog in the lateral wall department of cabin bottom plate.
Optionally, the side wall of the friction plate is provided with a first threaded hole.
By adopting the technical scheme, when the friction plate needs to be taken out, the friction plate is screwed into the screw rod from the first threaded hole, so that the friction plate can be pulled out through the screw rod.
Optionally, a distance between two side walls of the mounting groove is greater than or equal to a width of the friction plate.
Through adopting above-mentioned technical scheme, when the friction disc was installed in the mounting groove, the distance between two lateral walls of mounting groove was more than or equal to the width of friction disc, made the friction disc conveniently install in the mounting groove.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the friction plate is detachably arranged on the mounting groove, so that the friction plate is convenient to mount and dismount, the old friction plate can be replaced by a new friction plate, and the braking force of the whole system is increased;
2. through the installation of mounting groove department dog, make the dog can block the friction disc, make the friction disc be convenient for change and observe the wearing and tearing condition of friction disc when dismantling the dog.
Drawings
FIG. 1 is a schematic diagram of a portion of an embodiment of the present application;
fig. 2 is a schematic sectional view of line a-a in fig. 1.
Reference numerals: 1. a cabin floor; 11. mounting grooves; 12. a through hole; 13. grooving; 2. a tower drum top flange; 3. a sliding yaw bearing; 31. a yaw claw; 32. a yaw gear ring; 33. a liner; 331. an upper pad; 332. a side pad; 333. a lower cushion; 4. a friction plate; 41. a first threaded hole; 5. pressing the column; 51. a second threaded hole; 6. yaw driving; 7. a stopper; 8. fastening a bolt; 9. a yaw hydraulic brake.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses wind generating set driftage braking structure.
The yaw system comprises a tower barrel top flange 2 arranged on the top of a tower barrel, a cabin bottom plate 1 arranged on the top of the tower barrel and a sliding type yaw bearing 3 arranged between the tower barrel top flange 2 and the cabin bottom plate 1, wherein a plurality of yaw drives 6 are respectively arranged at the side end of the cabin bottom plate 1, and a yaw hydraulic brake 9 is arranged between adjacent yaw drives 6.
The sliding type yaw bearing 3 is composed of a yaw gear ring 32 and a plurality of yaw claws 31, the plurality of yaw claws 31 are respectively arranged on the inner ring of the yaw gear ring 32, a gasket 33 is arranged between the yaw gear ring 32 and the yaw claws 31, namely, a lower pad 333 is arranged below the contact surface of the yaw claws 31 and the yaw gear ring 32, a side pad 332 is arranged at the side end of the contact surface of the yaw claws 31 and the yaw gear ring 32, an upper pad 331 is arranged between the yaw claws 31 and the nacelle baseplate 1, and the yaw hydraulic brakes 9 are respectively arranged between the plurality of yaw drives 6 of the nacelle baseplate 1.
The side wall of the lower end of the cabin bottom plate 1 is provided with a plurality of mounting grooves 11, the cabin bottom plate 1 is detachably provided with friction plates 4 in the mounting grooves 11, two ends of each friction plate 4 are respectively abutted against a yaw hydraulic brake 9 and a yaw gear ring 32, when the mounting grooves 11 correspond to the friction plates 4 and are rectangular, the distance between the two side walls of the mounting grooves 11 is larger than or equal to the width of each friction plate 4, when the mounting grooves 11 correspond to the friction plates 4 and are circular, the diameter of the mounting grooves 11 is larger than or equal to the diameter of each friction plate 4, so that the friction plates 4 are arranged in the shape corresponding to the mounting grooves 11, the friction plates 4 are convenient to mount and replace in the mounting grooves 11, the friction plates 4 are made of rigid materials with larger friction coefficients, for example, the friction plates 4 can be made of copper-based powder metallurgy materials; because the friction disc 4 is installed in the installation groove 11, the friction disc 4 is not convenient to contact with the outside, in order to facilitate replacement of the friction disc 4 in the installation groove 11, the side wall of the friction disc 4 is provided with a first threaded hole 41, and when the friction disc 4 needs to be replaced, a screw rod can be threaded through the first threaded hole 41, so that the friction disc 4 can be pulled out conveniently.
The cabin bottom plate 1 is provided with a cutting groove 13 communicated with the mounting groove 11, the cutting groove 13 is a groove which is correspondingly arranged on the mounting groove 11 and communicated with the mounting groove 11, the cutting groove 13 is also arranged on the side wall of the lower end of the cabin bottom plate 1, and when the friction plate 4 needs to be replaced, the friction plate 4 can be pulled out from the cutting groove 13.
The lateral wall of cabin bottom plate 1 corresponds notch 13 removable and is provided with dog 7, and dog 7 butt friction disc 4, and dog 7 includes two parts of chain, and the cross-section of dog 7 is 'L' shape, and the longitudinal end removable the setting in the side of cabin bottom plate 1 of dog 7, and notch 13 is worn to locate by the transverse end of dog 7, makes dog 7 carry out the butt to friction disc 4.
In order to facilitate the installation and the disassembly of the stop block 7 at the cabin bottom plate 1, a fastening bolt 8 is threaded through the stop block 7, the fastening bolt 8 penetrates through the stop block 7 and is screwed into the side wall of the cabin bottom plate 1, namely, a threaded hole is synchronously formed at the position of the side wall of the cabin bottom plate 1 where the cutting groove 13 is formed and the stop block 7, so that the fastening bolt 8 respectively penetrates through the stop block 7 and the side wall of the cabin bottom plate 1.
A through hole 12 is formed in the cabin bottom plate 1 corresponding to the yaw hydraulic brake 9 in a penetrating mode along the thickness direction of the cabin bottom plate 1, a compression column 5 penetrates through the cabin bottom plate 1 at the through hole 12, the compression column 5 is a metal columnar block with low deformation degree, the compression column 5 is respectively abutted against the friction plate 4 and the yaw hydraulic brake 9, and when the yaw hydraulic brake 9 brakes, the compression column 5 is pressed to press the friction plate 4, so that the braking effect is achieved; because the height of the compression leg 5 is the same as the depth of the through hole 12, in order to facilitate replacement and maintenance of the compression leg 5, a second threaded hole 51 is formed in the upper surface of the compression leg 5, and the compression leg 5 is conveniently pulled out of the through hole 12 through the second threaded hole 51.
The implementation principle of the yaw brake structure of the wind generating set in the embodiment of the application is as follows: when the fan needs yaw, the cabin can rotate at tower section of thick bamboo top flange 2 upper end under the bearing of slidingtype driftage hydraulic bearing, when the fan aircraft nose needs to the wind locking, driftage hydraulic brake 9 increases the frictional force of slidingtype driftage bearing 3 through pressing friction disc 4, thereby brake cabin bottom plate 1, and then make the cabin stall, when the degree of wear of friction disc 4 is great, the brake force of friction disc 4 is not enough, demolish dog 7 this moment, make friction disc 4 be convenient for pull out along grooving 13 in mounting groove 11 department, the messenger can change old friction disc 4 into new friction disc 4, thereby increase the holistic brake force of system.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. The utility model provides a wind generating set driftage braking structure, including set up in tower section of thick bamboo top flange (2) on tower section of thick bamboo top, set up in the cabin bottom plate (1) on tower section of thick bamboo top and set up in tower section of thick bamboo top flange (2) with slidingtype yaw bearing (3) between cabin bottom plate (1), cabin bottom plate (1) are provided with a plurality of driftage hydraulic brake (9) that are used for right cabin bottom plate (1) carry out the braking, its characterized in that:
the lateral wall of cabin bottom plate (1) has seted up a plurality of mounting grooves (11), cabin bottom plate (1) correspond mounting groove (11) seted up with grooving (13) of mounting groove (11) intercommunication, cabin bottom plate (1) in mounting groove (11) removable friction disc (4) that is provided with, the both ends of friction disc (4) butt respectively yaw hydraulic brake (9) with driftage ring gear (32) of slidingtype driftage bearing (3).
2. The yaw brake structure of the wind generating set according to claim 1, wherein: the hydraulic brake device is characterized in that the cabin bottom plate (1) penetrates through a through hole (12) corresponding to the yaw hydraulic brake device (9) along the thickness direction of the cabin bottom plate (1), a compression leg (5) penetrates through the through hole (12) of the cabin bottom plate (1), and the compression leg (5) is respectively abutted to the friction plate (4) and the yaw hydraulic brake device (9).
3. The yaw brake structure of the wind generating set according to claim 2, wherein: and a second threaded hole (51) is formed in the upper surface of the pressing column (5).
4. The yaw brake structure of the wind generating set according to claim 1, wherein: the side wall of the cabin bottom plate (1) is detachably provided with a stop block (7) corresponding to the cutting groove (13), and the stop block (7) is abutted to the friction plate (4).
5. The yaw brake structure of the wind generating set according to claim 4, wherein: and a fastening bolt (8) penetrates through the stop block (7) in a threaded manner, and the fastening bolt (8) penetrates through the stop block (7) and is screwed into the side wall of the cabin bottom plate (1).
6. The yaw brake structure of the wind generating set according to claim 1, wherein: the side wall of the friction plate (4) is provided with a first threaded hole (41).
7. The yaw brake structure of the wind generating set according to claim 1, wherein: the distance between the two side walls of the mounting groove (11) is larger than or equal to the width of the friction plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122432519.5U CN216077406U (en) | 2021-10-10 | 2021-10-10 | Yaw brake structure of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122432519.5U CN216077406U (en) | 2021-10-10 | 2021-10-10 | Yaw brake structure of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077406U true CN216077406U (en) | 2022-03-18 |
Family
ID=80638029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122432519.5U Active CN216077406U (en) | 2021-10-10 | 2021-10-10 | Yaw brake structure of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216077406U (en) |
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2021
- 2021-10-10 CN CN202122432519.5U patent/CN216077406U/en active Active
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