Universal elastic supporting device
By designing a universal elastic support device, using guide columns, shock-absorbing rubber rings and metal frames for integrated vulcanization molding, and combining them with a limit shell and base, the problems of insufficient support stiffness and durability of the tuned mass damper are solved, and a connection method with high stiffness and low failure risk is achieved.
Patent Information
- Application Number
- CN202423191669.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The tuned mass dampers of existing wind turbine blades have deficiencies in support stiffness and durability, resulting in a high risk of failure.
A universal elastic support device is designed, which includes a guide column, a shock-absorbing rubber ring and a metal frame that are integrally vulcanized and combined with a limit shell and a base to achieve an elastic connection between the guide column and the base, thereby enhancing the support stiffness and reducing the risk of failure.
This improves the support stiffness, reduces the risk of failure of the tuned mass damper during operation, and ensures stable operation of the damper.
Smart Images
Figure CN223483252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind power vibration reduction technology, specifically to a universal elastic support device for supporting the tuned mass damper in wind turbine blades. Background Technology
[0002] Tuned mass dampers are commonly used dampers in wind turbine blades. Blades experience complex loads in the air, including axial vibration, lateral bending vibration, and torsional vibration. The damper base must be elastically connected to the blade. However, conventional elastic connections have limitations in durability and support stiffness. Therefore, there is an urgent need to design a universal elastic support device with high support stiffness, good durability, and reduced risk of tuned mass damper failure during operation. Utility Model Content
[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a universal elastic support device with strong support stiffness, good durability, and reduced risk of failure of the tuned mass damper during operation.
[0004] The purpose of this utility model is achieved as follows:
[0005] A universal elastic support device includes a guide post, a shock-absorbing rubber ring, a metal frame, a limiting shell, and a base. The guide post, the shock-absorbing rubber ring, and the metal frame are integrally vulcanized. The guide post is disposed inside the shock-absorbing rubber ring, and the metal frame is disposed outside the shock-absorbing rubber ring. The base has an annular boss corresponding to the metal frame, and the metal frame rests on the top surface of the annular boss. The outer circumferential surface of the annular boss is threadedly connected to the limiting shell, and the limiting shell has an annular limiting groove corresponding to the metal frame.
[0006] Preferably, the annular boss suspends the guide post and shock-absorbing rubber ring inside the metal frame above the base.
[0007] Preferably, the guide posts are arranged in a stepped manner, with a large-diameter post body and a small-diameter post head, and the post body is vulcanized integrally with the shock-absorbing rubber ring.
[0008] Preferably, the protruding head of the limiting housing is used to connect the damper.
[0009] Preferably, the two ends of the inner hole of the shock-absorbing rubber ring extend to the two ends of the column body to form an edge.
[0010] Preferably, the base has mounting holes evenly distributed around its circumference for mounting blades.
[0011] The beneficial effects of this utility model are:
[0012] The guide post, damping rubber ring, and metal frame are vulcanized into one piece. The outer metal frame is fixed inside the limiting shell, while the inner guide post is suspended from the base. This achieves an elastic connection between the guide post for mounting the damper and the base for mounting the blades, ensuring support stiffness while reducing the risk of damper failure during operation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a universal elastic support device according to the present invention.
[0014] Figure 2 This is a schematic diagram of the assembly structure of this utility model.
[0015] The components include: guide post 1; post body 1.1; post head 1.2; shock-absorbing rubber ring 2; edging 2.1; metal frame 3; limiting shell 4; base 5; annular boss 5.1; and mounting hole 5.2. Detailed Implementation
[0016] See Figure 1 and Figure 2 This utility model relates to a universal elastic support device, including a guide post 1, a shock-absorbing rubber ring 2, a metal frame 3, a limiting shell 4, and a base 5. The shock-absorbing rubber ring 2 is disposed between the guide post 1 and the metal frame 3. The guide post 1, the shock-absorbing rubber ring 2, and the metal frame 3 are integrally vulcanized. The guide post 1 is disposed inside the shock-absorbing rubber ring 2, and the metal frame 3 is disposed outside the shock-absorbing rubber ring 2. The guide post 1 and the metal frame 3 are concentric. The base 5 is provided with an annular boss 5.1 corresponding to the metal frame 3. The metal frame 3 rests on the top surface of the annular boss 5.1. The outer circumferential surface of the annular boss 5.1 is threadedly connected to the limiting shell 4. The limiting shell 4 is provided with an annular limiting groove corresponding to the metal frame 3. The annular limiting groove cooperates with the annular boss 5.1 to limit the metal frame 3 axially and radially.
[0017] The guide post 1 is arranged in a stepped manner, with a large-diameter post body 1.1 and a small-diameter post head 1.2. The post body 1.1 is vulcanized with the shock-absorbing rubber ring 2. The two ends of the inner hole of the shock-absorbing rubber ring 2 extend to the two ends of the post body 1.1 to form a rim 2.1, which increases the contact area between the guide post 1 and the shock-absorbing rubber ring 2.
[0018] The protruding head 1.2 of the limiting housing 2 is used to connect the damper.
[0019] The base 5 has mounting holes 5.2 evenly distributed around its circumference. The mounting holes 5.2 are used to mount blades, and the blades are connected to the mounting holes 5.2 by bolts.
[0020] Installation method:
[0021] The guide post 1, the shock-absorbing rubber ring 2, and the metal skeleton 3 are vulcanized together. The metal skeleton 3 rests on the annular protrusion of the base. The limiting shell is threaded to the base. The limiting shell presses the metal skeleton outside the shock-absorbing rubber ring. The guide post and the shock-absorbing rubber ring are suspended on the base, thereby realizing the elastic connection between the guide post and the base, forming a universal elastic support device.
[0022] The damper is connected to the head of the guide post, and the blade is connected to the mounting hole of the base. This device forms an elastic connection between the damper and the blade. When the blade is subjected to external load, the damper starts to work, ensuring the stable operation of the damper and reducing the risk of damper failure during operation.
[0023] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.
Claims
1. A universal elastic support device, characterized in that: The device includes a guide post, a shock-absorbing rubber ring, a metal frame, a limiting shell, and a base. The guide post, the shock-absorbing rubber ring, and the metal frame are integrally vulcanized. The guide post is disposed inside the shock-absorbing rubber ring, and the metal frame is disposed outside the shock-absorbing rubber ring. The base has an annular boss corresponding to the metal frame, and the metal frame rests on the top surface of the annular boss. The outer circumferential surface of the annular boss is threaded to the limiting shell, and the limiting shell has an annular limiting groove corresponding to the metal frame.
2. The universal elastic support device according to claim 1, characterized in that: The annular boss suspends the guide post and shock-absorbing rubber ring inside the metal frame above the base.
3. The universal elastic support device according to claim 1, characterized in that: The guide posts are arranged in a stepped manner, with a large-diameter column body and a small-diameter column head. The column body is vulcanized together with the shock-absorbing rubber ring.
4. The universal elastic support device according to claim 3, characterized in that: The protruding head of the limiting housing is used to connect the damper.
5. A universal elastic support device according to claim 3, characterized in that: The two ends of the inner hole of the shock-absorbing rubber ring extend to the two ends of the column body to form an edge.
6. The universal elastic support device according to claim 1, characterized in that: The base has mounting holes evenly distributed around its circumference for mounting blades.