CN211474323U - Blade locking device of wind turbine generator - Google Patents
Blade locking device of wind turbine generator Download PDFInfo
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- CN211474323U CN211474323U CN201921834425.7U CN201921834425U CN211474323U CN 211474323 U CN211474323 U CN 211474323U CN 201921834425 U CN201921834425 U CN 201921834425U CN 211474323 U CN211474323 U CN 211474323U
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- screw rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a wind turbine blade locking device, which comprises a locking disc, wherein a transmission mechanism is arranged below the locking disc, and a gradual locking mechanism is arranged on the transmission mechanism; the transmission mechanism comprises a servo motor, a first screw rod is fixedly arranged at the output end of the servo motor and comprises a first screw rod and a second screw rod, the threads of the first screw rod and the second screw rod are opposite, the first screw rod and the second screw rod are fixedly connected in a tail end mode, a sliding rail is arranged outside the first screw rod, the first screw rod and the second screw rod are respectively and threadedly connected with a movable block, the movable block is matched with the sliding rail, and the movable block is provided with a gradual locking mechanism. Has the advantages that: the rotation speed of the locking disc can be gradually inhibited until the locking disc stops rotating, so that the locking disc can be prevented from being blocked without adopting a special high-strength inhibiting workpiece, the cost is saved, and the physical injury to related personnel caused by manual braking is avoided.
Description
Technical Field
The utility model relates to a wind power generation field particularly, relates to a wind turbine generator system blade locking device.
Background
When the blades and the hub are assembled on the site of fan installation, after the blades are connected with a variable pitch bearing on the hub, the blades need to be rotated to fasten bolts of the blade root, and in the process, if power failure happens accidentally, the blades can freely rotate in a single direction, so that safety measures must be taken to prevent the blades from sliding. Meanwhile, in the process of lifting the impeller, the blades also need to be locked. The blades must be locked against rotation during the torque stroke. Because the number of bolts at the blade root is large, and the bolts are pre-tightened twice, the blade needs to be frequently rotated and fixed during installation, so that the blade locking device is required to be safe and reliable, convenient to operate and capable of reducing workload.
Generally, the blade fixing device is blocked at one time, because the torsion force for rotating the disposable bearing blade is needed, the requirement on the rigidity of the blade fixing device is extremely high, the blade fixing device is expensive in manufacturing cost, and the service life of the locking disc is influenced due to serious damage to the locking disc.
SUMMERY OF THE UTILITY MODEL
To the problem in the correlation technique, the utility model provides a wind turbine generator system blade locking device to overcome the above-mentioned technical problem that current correlation technique exists.
Therefore, the utility model discloses a specific technical scheme as follows:
a wind turbine generator blade locking device comprises a locking disc, wherein a transmission mechanism is arranged below the locking disc, and a gradual locking mechanism is arranged on the transmission mechanism;
the transmission mechanism comprises a servo motor, a first screw rod is fixedly arranged at the output end of the servo motor and comprises a first screw rod and a second screw rod, the threads of the first screw rod and the second screw rod are opposite, the first screw rod and the second screw rod are fixedly connected in a tail-ending manner, a slide rail is arranged outside the first screw rod, movable blocks are respectively arranged on the first screw rod and the second screw rod in a threaded connection manner, the movable blocks are matched with the slide rail, and the gradual locking mechanism is arranged on the movable blocks;
the gradual locking mechanism comprises a stand column, a first spring groove is formed in the stand column, a first spring is arranged in the first spring groove, an L-shaped plate is arranged on the movable block at one side of the stand column in a connected mode through a movable shaft, the first spring is fixedly arranged at one side of the L-shaped plate, a transmission shaft penetrates through the L-shaped plate, a gear is fixedly arranged on the transmission shaft, a limiting mechanism is arranged below the transmission shaft, the transmission shaft is connected with the L-shaped plate through a first bearing, a worm wheel is fixedly arranged on the transmission shaft, a worm is connected to one side of the worm wheel, second screw rods with opposite threads are fixedly arranged at two ends of the worm respectively, a movable clamping block penetrates through the second screw rods in a threaded mode, a fixed clamping block is fixedly arranged on the L-shaped plate, and one end of the movable clamping block movably penetrates through the fixed, the movable clamping block is matched with the fixed clamping block, an annular clamping plate is fixedly arranged below the gear, the annular clamping plate is located between the movable clamping block and the fixed clamping block, and the gear is matched with the locking disc.
Furthermore, one end of the first screw rod, which is far away from the servo motor, is connected with the inner wall of one end of the sliding rail through a second bearing.
Furthermore, stop gear includes spacing dish, spacing dish is fixed the transmission shaft is kept away from the one end of gear, spacing dish one side through a plurality of first gyro wheels with one side of L shaped plate contacts.
Furthermore, wear-resisting plates are fixedly arranged on the sides, close to each other, of the movable clamping blocks and the fixed clamping blocks.
Further, the locking dish includes the disk body, the disk body inner wall is equipped with increases stroke mechanism, it includes two-sided annular rack to increase stroke mechanism, the inner wall of disk body is seted up flutedly, the fixed annular slider that is equipped with in both sides of two-sided annular rack, annular slider with recess looks adaptation, the fixed annular inner rack that is equipped with in the inner wall of recess, the outer wall of two-sided annular rack with annular inner rack phase-match, the second spring groove has been seted up to the recess inner wall, the second spring inslot is equipped with the fore-set, the one end of fore-set pass through the second spring with the inner wall in second spring groove is connected, be equipped with the second gyro wheel on the fore-set, the fore-set passes through the second gyro wheel with annular slider contacts.
Further, when the gear is not in contact with the double-sided annular rack, the inclination angle of the gear is 10-15 degrees.
The utility model has the advantages that:
(1) the rotation speed of the locking disc can be gradually restrained until the locking disc stops rotating, so that the locking disc can be prevented from being obstructed by a special restraining workpiece with high strength, the cost is saved, and the manual braking is avoided from causing physical injury to related personnel.
(2) The double-sided annular rack is rotated in the groove until the double-sided annular rack is meshed with the annular inner rack, so that the braking distance is further increased, and the probability of damage to the locking disc is reduced.
Drawings
Fig. 1 is a top view of a wind turbine blade locking device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a transmission mechanism in a wind turbine blade locking device according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a wind turbine blade locking device according to an embodiment of the present invention;
fig. 4 is a partial structural schematic diagram of a gradual locking mechanism in a blade locking device of a wind turbine generator according to an embodiment of the present invention;
fig. 5 is a connection node diagram of a worm gear in a blade locking device of a wind turbine according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a locking disk in a wind turbine blade locking device according to an embodiment of the present invention.
In the figure:
1. a locking disk; 2. a transmission mechanism; 3. a gradual locking mechanism; 4. a servo motor; 5. a first screw; 6. a slide rail; 7. a movable block; 8. a column; 9. a first spring; 10. an L-shaped plate; 11. a drive shaft; 12. a gear; 13. a worm gear; 14. a worm; 15. a second screw; 16. a movable clamping block; 17. fixing the fixture block; 18. an annular splint; 19. a limiting disc; 20. a tray body; 21. a double-sided annular rack; 22. a groove; 23. an annular slider; 24. an annular inner rack; 25. a top pillar; 26. a second spring.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, as shown in fig. 1-6, a wind turbine blade locking device according to an embodiment of the present invention includes a locking disk 1, a transmission mechanism 2 is disposed below the locking disk 1, and a gradual locking mechanism 3 is disposed on the transmission mechanism 2;
the transmission mechanism 2 comprises a servo motor 4, a first screw 5 is fixedly arranged at the output end of the servo motor 4, the first screw 5 comprises a first screw rod and a second screw rod, the threads of the first screw rod and the second screw rod are opposite, the first screw rod and the second screw rod are fixedly connected in a closing manner, a slide rail 6 is arranged outside the first screw rod 5, movable blocks 7 are respectively arranged on the first screw rod and the second screw rod in a threaded connection manner, the movable blocks 7 are matched with the slide rail 6, and the gradual locking mechanism 3 is arranged on the movable blocks 7;
the gradual locking mechanism 3 comprises a stand column 8, a first spring groove is formed in the stand column 8, a first spring 9 is arranged in the first spring groove, one side of the stand column 8 is located on the movable block 7 and is provided with an L-shaped plate 10 through movable shaft connection, one side of the L-shaped plate 10 is fixedly provided with the first spring 9, a transmission shaft 11 penetrates through the L-shaped plate 10, a gear 12 is fixedly arranged on the transmission shaft 11, a limiting mechanism is arranged below the transmission shaft 11, the transmission shaft 11 is connected with the L-shaped plate 10 through a first bearing, a worm wheel 13 is fixedly arranged on the transmission shaft 11, one side of the worm wheel 13 is connected with a worm 14, two ends of the worm 14 are respectively and fixedly provided with second screw rods 15 with opposite threads, a movable clamping block 16 penetrates through the threads of the second screw rods 15, and a fixed clamping block 17 is fixedly arranged on the L-shaped plate 10, one end of the movable clamping block 16 movably penetrates through the fixed clamping block 17, the movable clamping block 16 is matched with the fixed clamping block 17, an annular clamping plate 18 is fixedly arranged below the gear 12, the annular clamping plate 18 is located between the movable clamping block 16 and the fixed clamping block 17, and the gear 12 is matched with the locking disc 1.
By means of the technical scheme, when locking is needed, the servo motor 4 is started, the two movable blocks 7 are far away from each other, when the servo motor 4 rotates for a certain time, the gear 12 is in contact with and meshed with the locking disc 1, at the same time, the gear 12 rotates with the following locking disc 1, the worm wheel 13 is driven to rotate at the same time, the worm 14 on one side of the worm wheel 13 rotates the two second screw rods 15, the movable fixture block 16 can gradually approach the fixed fixture block 17, the annular clamping plate 18 can be clamped between the movable fixture block 16 and the fixed fixture block 17, and along with the rotation of the locking disc 1, the clamping force for clamping the annular clamping plate 18 can be gradually increased between the movable fixture block 16 and the fixed fixture block 17, so that the rotation speed of the locking disc 1 can be gradually inhibited until the locking disc stops rotating, and a special high-strength inhibiting workpiece is not needed to block the locking disc 1, the cost is saved, and the manual braking is avoided from causing physical injury to related personnel.
In one embodiment, for the first screw 5, an end of the first screw 5 away from the servo motor 4 is connected to an inner wall of an end of the slide rail 6 through a second bearing.
In one embodiment, for the above-mentioned limiting mechanism, the limiting mechanism includes a limiting disc 19, the limiting disc 19 is fixed on one end of the transmission shaft 11 far away from the gear 12, and one side of the limiting disc 19 is in contact with one side of the L-shaped plate 10 through a plurality of first rollers.
In one embodiment, for the movable latch 16, a wear plate is fixedly disposed on a side where the movable latch 16 and the fixed latch 17 are close to each other.
In the case of the above-described locking disk 1, in one embodiment, the locking disk 1 comprises a disk body 20, the inner wall of the tray body 20 is provided with a stroke increasing mechanism which comprises a double-sided annular rack 21, the inner wall of the tray body 20 is provided with a groove 22, two sides of the double-sided annular rack 21 are fixedly provided with annular sliding blocks 23, the annular slide block 23 is matched with the groove 22, an annular inner rack 24 is fixedly arranged on the inner wall of the groove 22, the outer wall of the double-sided annular rack 21 is matched with the annular inner rack 24, the inner wall of the groove 22 is provided with a second spring groove, a top pillar 25 is arranged in the second spring groove, one end of the top pillar 25 is connected with the inner wall of the second spring groove through a second spring 26, and a second roller is arranged on the top column 25, and the top column 25 is in contact with the annular sliding block 23 through the second roller.
By means of the technical scheme, the locking disk 1 comprises the double-sided annular rack 21 and the annular inner rack 24, when the gear 12 is in contact with the inner wall of the double-sided annular rack 21, the double-sided annular rack 21 is pressed to move to be in contact with and meshed with the annular inner rack 24 due to the gap in the groove 22, and the gear 12 is not directly contacted with the double-sided annular rack 21 and the double-sided annular rack 21 is not directly contacted with the annular inner rack 24 at a time due to the buffering of the second spring 26, so that the sequential meshing between the gear 12 and the double-sided annular rack 21 and between the double-sided annular rack 21 and the annular inner rack 24 can be perfectly realized, the damage to the locking disk 1 is avoided, and meanwhile, when the gear 12 is meshed with the double-sided annular rack 21, the double-sided annular rack 21 rotates in the groove 22 until the double-sided annular rack 21 is meshed with the annular, thus further increasing the distance over which it is braked and reducing the chance of damage to the locking disk 1.
In one embodiment, for the above-mentioned gear 12, when the gear 12 is not in contact with the double-sided annular rack 21, the angle of inclination of the gear 12 is between 10 ° and 15 °. By setting this angle, the gear 12 can be tilted without causing the gear 12 and the double-sided annular rack 21 to be disengaged from each other.
In summary, with the above technical solution of the present invention, when the locking is required, the servo motor 4 is started to move the two movable blocks 7 away from each other, when the servo motor 4 rotates for a certain time, the gear 12 contacts and engages with the locking disk 1, at this time, the gear 12 rotates with the following locking disk 1, and at the same time, the worm wheel 13 rotates, the worm 14 on one side of the worm wheel 13 rotates the two second screws 15, and further the movable fixture block 16 gradually approaches the fixed fixture block 17, so that the annular fixture block 18 can be clamped between the movable fixture block 16 and the fixed fixture block 17, and as the locking disk 1 rotates, the clamping force for clamping the annular fixture block 18 can be gradually increased between the movable fixture block 16 and the fixed fixture block 17, so as to gradually inhibit the rotation speed of the locking disk 1 until it stops rotating, so that a special high-strength inhibiting workpiece is not required to block the locking disk 1, the cost is saved, and the manual braking is avoided from causing physical injury to related personnel. By arranging the locking disk 1 to comprise the double-sided annular rack 21 and the annular inner rack 24, when the gear 12 is in contact with the inner wall of the double-sided annular rack 21, the double-sided annular rack 21 is pressed to move to be in contact with and meshed with the annular inner rack 24 due to the gap in the groove 22, and the gear 12 is not directly contacted with the double-sided annular rack 21 and the double-sided annular rack 21 is not directly contacted with the annular inner rack 24 at one time due to the buffering of the second spring 26, so that the sequential meshing between the gear 12 and the double-sided annular rack 21 and between the double-sided annular rack 21 and the annular inner rack 24 can be perfectly realized, the damage to the locking disk 1 is avoided, and meanwhile, when the gear 12 is meshed with the double-sided annular rack 21, the double-sided annular rack 21 rotates in the groove 22 until the double-sided annular rack 21 is meshed with the, thus further increasing the distance over which it is braked and reducing the chance of damage to the locking disk 1.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The blade locking device of the wind turbine generator is characterized by comprising a locking disc (1), wherein a transmission mechanism (2) is arranged below the locking disc (1), and a gradual locking mechanism (3) is arranged on the transmission mechanism (2);
the transmission mechanism (2) comprises a servo motor (4), a first screw rod (5) is fixedly arranged at the output end of the servo motor (4), the first screw rod (5) comprises a first screw rod and a second screw rod, the threads of the first screw rod and the second screw rod are opposite, the first screw rod and the second screw rod are fixedly connected in a closing manner, a sliding rail (6) is arranged outside the first screw rod (5), movable blocks (7) are respectively connected on the first screw rod and the second screw rod in a threaded manner, the movable blocks (7) are matched with the sliding rail (6), and the gradual locking mechanism (3) is arranged on the movable blocks (7);
the gradual locking mechanism (3) comprises a stand column (8), a first spring groove is formed in the stand column (8), a first spring (9) is arranged in the first spring groove, one side of the stand column (8) is located on the movable block (7) and is provided with an L-shaped plate (10) through movable shaft connection, one side of the L-shaped plate (10) is fixedly provided with the first spring (9), the L-shaped plate (10) is provided with a transmission shaft (11) in a penetrating manner, the transmission shaft (11) is fixedly provided with a gear (12), the transmission shaft (11) is provided with a limiting mechanism, the transmission shaft (11) is connected with the L-shaped plate (10) through a first bearing, a worm wheel (13) is fixedly arranged on the transmission shaft (11), one side of the worm wheel (13) is connected with a worm (14), and two ends of the worm (14) are respectively and fixedly provided with second screw rods (15) with opposite threads, the utility model discloses a locking plate, including gear (12), second screw rod (15) are gone up the screw thread and run through and are equipped with movable fixture block (16), the fixed fixture block (17) that is equipped with on L shaped plate (10), the one end activity of activity fixture block (16) is run through fixed fixture block (17), and, movable fixture block (16) with fixed fixture block (17) phase-match, gear (12) are fixed down and are equipped with annular splint (18), annular splint (18) are located movable fixture block (16) with between fixed fixture block (17), gear (12) with locking plate (1) phase-match.
2. The locking device for the blades of the wind turbine generator set according to claim 1, wherein one end of the first screw (5) far away from the servo motor (4) is connected with the inner wall of one end of the sliding rail (6) through a second bearing.
3. The wind turbine blade locking device according to claim 1, wherein the limiting mechanism comprises a limiting disc (19), the limiting disc (19) is fixed at one end of the transmission shaft (11) far away from the gear (12), and one side of the limiting disc (19) is in contact with one side of the L-shaped plate (10) through a plurality of first rollers.
4. The wind turbine blade locking device according to claim 1, wherein a wear-resistant plate is fixedly arranged on one side of the movable clamping block (16) and one side of the fixed clamping block (17) close to each other.
5. The wind turbine blade locking device according to claim 1, wherein the locking disk (1) comprises a disk body (20), a stroke increasing mechanism is arranged on the inner wall of the disk body (20), the stroke increasing mechanism comprises a double-sided annular rack (21), a groove (22) is formed in the inner wall of the disk body (20), annular sliding blocks (23) are fixedly arranged on two sides of the double-sided annular rack (21), the annular sliding blocks (23) are matched with the groove (22), an annular inner rack (24) is fixedly arranged on the inner wall of the groove (22), the outer wall of the double-sided annular rack (21) is matched with the annular inner rack (24), a second spring groove is formed in the inner wall of the groove (22), a support pillar (25) is arranged in the second spring groove, one end of the support pillar (25) is connected with the inner wall of the second spring groove through a second spring (26), and a second roller is arranged on the top column (25), and the top column (25) is in contact with the annular sliding block (23) through the second roller.
6. Wind turbine blade locking device according to claim 5, characterized in that the angle of inclination of the gear (12) is between 10 ° and 15 ° when the gear (12) is not in contact with the double-sided annular rack (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834425.7U CN211474323U (en) | 2019-10-29 | 2019-10-29 | Blade locking device of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921834425.7U CN211474323U (en) | 2019-10-29 | 2019-10-29 | Blade locking device of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474323U true CN211474323U (en) | 2020-09-11 |
Family
ID=72358884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921834425.7U Active CN211474323U (en) | 2019-10-29 | 2019-10-29 | Blade locking device of wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474323U (en) |
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2019
- 2019-10-29 CN CN201921834425.7U patent/CN211474323U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215621 Zhangjiagang Aite Machinery Manufacturing Co., Ltd., east of wuganhe bridge, Zhaofeng Lefeng Road, Leyu Town, Suzhou City, Jiangsu Province Patentee after: Suzhou Alian Jingte Aviation Technology Co.,Ltd. Address before: 215621 Zhangjiagang Aite Machinery Manufacturing Co., Ltd., east of wuganhe bridge, Zhaofeng Lefeng Road, Leyu Town, Suzhou City, Jiangsu Province Patentee before: Zhangjiagang Aite Machinery Manufacturing Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |