High-precision wind power torque arm
By installing protective components such as limit plates, insert plates, anti-slip discs, and retaining rings on the wind turbine torque arm, the problem of thread hole groove wear caused by the torque wrench rotating the nut is solved, thereby improving transmission accuracy and service life.
Patent Information
- Application Number
- CN202423257477.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During the installation of high-precision wind turbine torque arms, the torque wrench causes the nut to rotate, resulting in wear on the threaded grooves, which affects transmission accuracy and service life.
Protective components are used, including a limiting plate, a insert plate, an anti-slip disc, and a retaining ring. The engagement between the limiting plate and the insert plate, and the protection of the anti-slip disc, reduce the wear on the connecting disc caused by the tightening of the nut.
It effectively reduces the wear of the connecting plate during installation and improves the transmission accuracy and service life of the wind turbine torque arm.
Smart Images
Figure CN223782030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of torque arm technology, specifically to a high-precision wind power torque arm. Background Technology
[0002] The high-precision wind turbine torque arm is an important component installed in the wind turbine gearbox. Its main function is to transmit power through the wind turbine's fan rotation to the gearbox.
[0003] The high-precision wind turbine torque arm is a transmission component installed between the wind turbine blades and the speed increaser. During assembly, it is assembled by using bolts and nuts. First, the threaded rod is passed through the connecting parts of the torque arm and the speed increaser. Then, the nut is placed on the outside of the threaded rod, and then the nut is tightened by rotating it with a torque wrench.
[0004] During installation, traditional high-precision wind turbine torque arms are prone to friction when the torque wrench rotates the nut, causing friction between the nut and the threaded rod and the connection between the torque arm and the generator output shaft. This friction can cause significant wear on the threaded hole groove of the torque arm. Wear on the threaded hole groove can lead to small-amplitude vibrations in the wind turbine torque arm during subsequent use. Frequent vibrations can affect the transmission accuracy of the wind turbine torque arm and reduce its service life. Utility Model Content
[0005] The purpose of this utility model is to provide a high-precision wind power torque arm, which solves the problem that in the existing high-precision wind power torque arm, during use and installation, the torque wrench drives the nut to rotate, and when the nut drives the screw to rotate, the screw rod deforms in the groove of the high-precision wind power torque arm.
[0006] This utility model provides the following technical solution: a high-precision wind power torque arm, including a speed increaser, a transmission rod fixedly connected to one end of the speed increaser, and a first connecting plate fixedly connected to the end of the transmission rod away from the speed increaser, a second connecting plate attached to the side of the first connecting plate away from the transmission rod, and a torsion bar fixedly connected to the side of the second connecting plate away from the first connecting plate, a third connecting plate fixedly connected to the end of the torsion bar away from the second connecting plate, and a protective component provided on the outer side of the end of the first connecting plate near the second connecting plate, the protective component including a first limiting plate provided on the outer side of the end of the second connecting plate away from the first connecting plate, and a second limiting plate attached to one end of the first limiting plate.
[0007] The above technical solution allows for installation by splicing the first and second limiting plates onto the outside of the torsion bar.
[0008] As a preferred embodiment of the above technical solution, a first slot is provided inside the end of the first limiting plate near the second limiting plate, and a first insert plate is inserted inside the first slot. The end of the first insert plate away from the first slot is fixedly connected to the second limiting plate.
[0009] The above technical solution allows for the insertion of the first insert plate into the first slot, facilitating the positioning of the first and second limiting plates.
[0010] As a preferred embodiment of the above technical solution, the first limiting plate and the second limiting plate are provided with second slots at both ends, and a second insert plate is inserted into the second slots. The end of the second insert plate near the torsion bar is fixedly connected to the torsion bar.
[0011] The above technical solution involves inserting a second insert plate into the second slot to position the first and second limiting plates.
[0012] As a preferred embodiment of the above technical solution, a threaded rod is fixedly connected to one end of the first limiting plate and the second limiting plate near the second connecting plate, and a nut is engaged at the other end of the threaded rod away from the first limiting plate and the second limiting plate through the outer side of the first connecting plate and the second connecting plate.
[0013] The above technical solution facilitates the fixing of the first and second limiting plates using threaded rods and nuts.
[0014] As a preferred embodiment of the above technical solution, a first anti-slip disc is attached to the outer side of the threaded rod near the nut, and a second anti-slip disc is attached to the outer side of the first anti-slip disc.
[0015] The above technical solution protects the first and second connecting discs by tightening the nuts during the splicing process of the first and second anti-slip discs.
[0016] As a preferred embodiment of the above technical solution, the outer sides of the first and second anti-slip discs are fitted with retaining rings, and the end of the retaining ring near the first connecting disc is fixedly connected to the first connecting disc.
[0017] The above technical solution allows for easy positioning of the first and second anti-slip discs via the side retaining rings.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This high-precision wind turbine torque arm can reduce wear on the first and second connecting plates during installation by using protective components to assemble the transmission rod and torque bar, thereby ensuring the accuracy of the wind turbine torque arm and extending its service life. Attached Figure Description
[0020] Figure 1A schematic diagram of a high-precision wind power torsion arm structure;
[0021] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a high-precision wind power torsion arm transmission rod and torsion bar.
[0022] Figure 3 This is a schematic diagram of a high-precision wind power torsion arm transmission rod and a partial structure of the torsion bar.
[0023] Figure 4 This is a schematic diagram of the inner structure of the first and second connecting plates of a high-precision wind power torsion arm.
[0024] Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle.
[0025] In the diagram: 1. Speed increaser; 11. Transmission rod; 12. First connecting plate; 13. Second connecting plate; 14. Torque bar; 15. Third connecting plate; 2. Protective assembly; 21. First limiting plate; 22. Second limiting plate; 23. First slot; 24. First insert plate; 25. Second slot; 26. Second insert plate; 27. Threaded rod; 28. Nut; 29. First anti-slip disc; 210. Second anti-slip disc; 211. Snap ring. Detailed Implementation
[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0027] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a high-precision wind turbine torque arm, including a speed increaser 1. One end of the speed increaser 1 is fixedly connected to a transmission rod 11, and the end of the transmission rod 11 away from the speed increaser 1 is fixedly connected to a first connecting plate 12. The side of the first connecting plate 12 away from the transmission rod 11 is attached to a second connecting plate 13, and the side of the second connecting plate 13 away from the first connecting plate 12 is fixedly connected to a torque rod 14. The end of the torque rod 14 away from the second connecting plate 13 is fixedly connected to a third connecting plate 15. A protective component 2 is provided on the outer side of the end of the first connecting plate 12 near the second connecting plate 13. The protective component 2 includes a first limiting plate 21 provided on the outer side of the end of the second connecting plate 13 away from the first connecting plate 12, and a second limiting plate 22 is attached to one end of the first limiting plate 21. When assembling the transmission rod 11 and the torque rod 14 through the protective component 2, the wear caused to the first connecting plate 12 and the second connecting plate 13 during the installation process can be reduced, thereby ensuring the precision of the wind turbine torque arm and improving its service life.
[0028] like Figure 5As shown, a first slot 23 is provided inside the first limiting plate 21 near the second limiting plate 22, and a first insert plate 24 is inserted inside the first slot 23. The end of the first insert plate 24 away from the first slot 23 is fixedly connected to the second limiting plate 22. The first limiting plate 21 and the second limiting plate 22 are spliced by the snapping of the first slot 23 and the first insert plate 24.
[0029] like Figure 5 As shown, the first limiting plate 21 and the second limiting plate 22 have second slots 25 inside both ends, and a second insert plate 26 is inserted inside the second slot 25. The end of the second insert plate 26 near the torsion bar 14 is fixedly connected to the torsion bar 14. The first limiting plate 21 and the second limiting plate 22 are restricted by the engagement of the second slot 25 and the second insert plate 26.
[0030] like Figure 2 As shown, a threaded rod 27 is fixedly connected to one end of the first limiting plate 21 and the second limiting plate 22 near the second connecting plate 13, and a nut 28 is engaged with the other end of the threaded rod 27 away from the first limiting plate 21 and the second limiting plate 22 through the outer side of the first connecting plate 12 and the second connecting plate 13. The nut 28 is tightened on the outside of the threaded rod 27 for fixation.
[0031] like Figure 4 As shown, a first anti-slip disc 29 is attached to the outer side of the threaded rod 27 near the nut 28, and a second anti-slip disc 210 is attached to the outer side of the first anti-slip disc 29. The first anti-slip disc 29 and the second anti-slip disc 210 protect the nut 28 from being turned.
[0032] like Figure 4 As shown, the first anti-slip disc 29 and the second anti-slip disc 210 are fitted with retaining rings 211 on their outer sides, and one end of the retaining ring 211 near the first connecting disc 12 is fixedly connected to the first connecting disc 12. The retaining ring 211 is used to lock and restrict the first anti-slip disc 29 and the second anti-slip disc 210.
[0033] Working principle: When assembling the torsion bar 14 and the speed increaser 1, firstly, the first connecting plate 12 and the second connecting plate 13 are fitted together. Then, the second limiting plate 22 drives the first insert plate 24 to engage with the first limiting plate 21. The first insert plate 24 is then inserted into the first slot 23 for locking. Simultaneously, the first limiting plate 21 and the second limiting plate 22 are fitted onto the outside of the second insert plate 26 through the slot of the second slot 25 for locking. The first limiting plate 21 and the second limiting plate 22 simultaneously drive the threaded rod 27 to be inserted into the first connecting plate 12 and the second connecting plate 13. After the threaded rod 27 is inserted, the first anti-slip plate 29 and the second anti-slip plate 210 are engaged with the retaining ring 211. The limiting plate 21 is placed on the outside of the threaded rod 27 for locking. Finally, the nut 28 is placed on the outside of the threaded rod 27 for fixing. The locking of the threaded rod 27 by the first limiting plate 21, the second limiting plate 22, the first anti-slip plate 29 and the second anti-slip plate 210 reduces the wear caused to the first connecting plate 12 and the second connecting plate 13 by tightening the nut 28. When disassembling, first unscrew the nut 28, then remove the first anti-slip plate 29 and the second anti-slip plate 210, then pull the first limiting plate 21 and the second limiting plate 22 to pull out the first connecting plate 12 and the second connecting plate 13. Finally, the first limiting plate 21 and the second limiting plate 22 can be disassembled.
[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A high-precision wind power torque arm, comprising a speed increaser (1), characterized in that: One end of the speed increaser (1) is fixedly connected to a transmission rod (11), and the end of the transmission rod (11) away from the speed increaser (1) is fixedly connected to a first connecting plate (12). The side of the first connecting plate (12) away from the transmission rod (11) is attached to a second connecting plate (13), and the side of the second connecting plate (13) away from the first connecting plate (12) is fixedly connected to a torsion bar (14). The end of the torsion bar (14) away from the second connecting plate (13) is fixedly connected to a third connecting plate (15), and a protective component (2) is provided on the outer side of the end of the first connecting plate (12) near the second connecting plate (13). The protective component (2) includes a first limiting plate (21) provided on the outer side of the end of the second connecting plate (13) away from the first connecting plate (12), and a second limiting plate (22) is attached to one end of the first limiting plate (21).
2. The high-precision wind power torque arm according to claim 1, characterized in that: The first limiting plate (21) has a first slot (23) inside the end near the second limiting plate (22), and a first insert plate (24) is inserted inside the first slot (23). The end of the first insert plate (24) away from the first slot (23) is fixedly connected to the second limiting plate (22).
3. A high-precision wind power torque arm according to claim 2, characterized in that: The first limiting plate (21) and the second limiting plate (22) have a second slot (25) inside both ends, and a second insert plate (26) is inserted inside the second slot (25). The end of the second insert plate (26) near the torsion bar (14) is fixedly connected to the torsion bar (14).
4. A high-precision wind power torque arm according to claim 1, characterized in that: A threaded rod (27) is fixedly connected to one end of the first limiting plate (21) and the second limiting plate (22) near the second connecting plate (13), and a nut (28) is engaged at the other end of the threaded rod (27) away from the first limiting plate (21) and the second limiting plate (22) on the outside of the first connecting plate (12) and the second connecting plate (13).
5. A high-precision wind power torque arm according to claim 4, characterized in that: The threaded rod (27) has a first anti-slip disc (29) attached to the outer side of the end near the nut (28), and a second anti-slip disc (210) is attached to the outer side of the first anti-slip disc (29).
6. A high-precision wind power torque arm according to claim 5, characterized in that: The first anti-slip disc (29) and the second anti-slip disc (210) are fitted with retaining rings (211) on their outer sides, and the end of the retaining ring (211) near the first connecting disc (12) is fixedly connected to the first connecting disc (12).