A flexible vibration damping connection device
By designing a flexible vibration damping connection device, the tilt angle of the cable rod is limited by supports, partitions, and rubber layers, which solves the problem of reduced service life of existing cable devices due to vibration and achieves effective vibration reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHUZHOU TIMES NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2022-11-01
- Publication Date
- 2026-06-05
AI Technical Summary
Existing cable systems cannot adapt to changes in external forces in multiple directions, leading to vibrations that reduce their service life.
A flexible vibration damping connection device was designed, including a support, a partition, a rubber layer and a fixing plate, which are fixed by vulcanization. Through holes are provided to limit the tilt angle of the cable rod, and a rubber layer is provided between the fixing plate and the support to reduce vibration.
It effectively reduces the vibration of the cable rod, extends its service life, and converts the deflection load into an axial load within a certain angle, thus reducing the bending moment load.
Smart Images
Figure CN115539315B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of offshore wind power auxiliary equipment, specifically, it relates to a flexible vibration damping connection device. Background Technology
[0002] With the development of offshore wind power, the application of deep-sea floating turbines is becoming increasingly widespread. As turbine power increases, so does the weight of the turbine itself. A cable system is needed to secure the turbine, tower, and floating foundation. This cable system typically uses tie rods to connect the turbine, tower, and floating foundation, increasing the stability of the installation. However, because the direction of external forces such as wind and waves at sea changes constantly, existing cable systems cannot adapt to changes in external forces in multiple directions, and factors such as vibration can significantly reduce the service life of the cable system. Summary of the Invention
[0003] In view of the technical problems mentioned above, the present invention aims to provide a flexible vibration damping connection device that can play a role in vibration damping.
[0004] According to the present invention, a flexible vibration damping connection device is provided for installing a cable rod with a cable nut, comprising:
[0005] A support with a conical surface is provided;
[0006] A partition plate is disposed on the conical surface of the support;
[0007] The rubber layer is fixed between the partition and the support by vulcanization.
[0008] And a fixing plate abutting against the partition, the side of the fixing plate away from the partition abutting against the cable nut;
[0009] The support, partition, rubber layer and fixing plate are all provided with through holes for mounting the cable rod at their central axes. The fixing plate is configured to limit the tilt angle of the cable rod relative to the support.
[0010] In one specific embodiment, a stop portion is provided at the edge of the fixed plate to abut against the partition plate, the stop portion being used to prevent the fixed plate and the partition plate from moving radially relative to each other.
[0011] In one specific embodiment, when the fixing plate tilts under the action of the cable rod, the stop portion can rigidly contact the support, thereby limiting the tilt angle of the cable rod.
[0012] In one specific embodiment, both sides of the partition are set as conical surfaces, and the side of the fixing plate closest to the partition is set as a conical surface.
[0013] In one specific embodiment, the side of the partition plate closest to the fixing plate is set as a plane, and the side of the fixing plate closest to the partition plate is set as a conical surface.
[0014] In one specific embodiment, the flexible vibration damping connection device further includes an adapter plate, which is fixedly connected to the support.
[0015] In one specific embodiment, a step for positioning is provided on the side of the adapter plate away from the support.
[0016] In one specific embodiment, the support is a thin-walled component, comprising a tapered plate and a base, the base being disposed at the bottom end of the tapered plate.
[0017] In one specific embodiment, a plurality of bolts connected to the support are evenly arranged circumferentially on the fixing plate to facilitate transportation and installation.
[0018] In one specific embodiment, a plurality of lifting holes are uniformly arranged circumferentially on the fixing plate.
[0019] Compared with the prior art, the advantages of this application are as follows.
[0020] This invention allows the cable rod to be inserted through it, and the cable nut of the cable rod abuts against the fixing plate of this invention, thereby achieving the purpose of connection. Simultaneously, a rubber layer and a partition are provided between the fixing plate and the support. The partition protects the rubber layer, and the rubber layer dampens vibrations when the cable rod is subjected to axial loads. Furthermore, the fixing plate of this invention tilts along with the cable rod, ensuring that the cable rod can only tilt within a limited angle. Attached Figure Description
[0021] The present invention will now be described with reference to the accompanying drawings.
[0022] Figure 1 An external schematic diagram of an embodiment of the flexible vibration damping connection device according to the present invention is shown;
[0023] Figure 2 A schematic diagram of the internal structure of the flexible vibration damping connection device according to the present invention is shown;
[0024] Figure 3 A schematic diagram showing the tilt of the cable rod according to the present invention is displayed;
[0025] Figure 4 A schematic diagram of another embodiment of the flexible vibration damping connection device according to the present invention is shown.
[0026] In the diagram: 1. Support; 2. Partition plate; 3. Rubber layer; 4. Fixing plate; 41. Stop; 42. Lifting hole; 5. Adapter plate; 6. Cable rod; 7. Cable nut; 10. Cabin cover; 11. Conical plate; 12. Base; 13. Reinforcing rib; 100. Flexible vibration damping connection device.
[0027] In this application, all drawings are schematic and are used only to illustrate the principles of the invention, and are not drawn to scale. Detailed Implementation
[0028] The invention will now be described with reference to the accompanying drawings.
[0029] It should be noted that the directional terms or qualifiers such as "up" and "down" used in this application are all specific to the referenced [reference]. Figure 1 In other words, they are not used to define the absolute position of the components involved, but can vary depending on the specific circumstances.
[0030] Figure 1 The structure of the flexible vibration damping connection device 100 according to the present invention is shown. With the development of offshore wind power, the application of deep-sea floating turbines is becoming increasingly widespread. In the prior art, deep-sea floating turbines are connected and fixed using cable rods 6 and cable nuts 7. The flexible vibration damping connection device 100 of the present invention is fixedly installed on the outer shell of the deep-sea floating turbine. The cable rod 6 with cable nuts 7 can be inserted into the flexible vibration damping connection device 100. After installation, the cable nuts 7 can abut against the flexible vibration damping connection device 100, thereby achieving the connection and fixation of the deep-sea floating turbine. Specifically, the flexible vibration damping connection device 100 is used to fix and connect different deep-sea floating turbines at both ends of the cable rod 6 according to the actual usage.
[0031] Example 1:
[0032] In this embodiment, the deep-sea floating unit is exemplified by the nacelle casing 10. Figure 1 and Figure 2 As shown, the flexible vibration damping connection device 100 includes a support 1, a partition 2, a rubber layer 3, and a fixing plate 4. The lower end surface of the support 1 is flat, and the upper end of the support 1 is an arc-shaped conical surface that is lower in the middle and higher around the edges. The partition 2 is a conical surface that matches the shape of the upper end surface of the support 1. The rubber layer 3 is set between the partition 2 and the support 1 by vulcanization, fixing the partition 2 and the support 1. The fixing plate 4 is located on the upper part of the partition 2, and the lower end surface of the fixing plate 4 is an arc-shaped conical surface that matches the shape of the partition 2. Specifically, through holes for passing through the cable rod 6 are provided at the central axis of the support 1, the partition 2, the rubber layer 3, and the fixing plate 4. At the same time, through holes for passing through the cable rod 6 are also provided on the nacelle shell 10.
[0033] like Figure 1 and Figure 2 As shown, after the flexible vibration damping connection device 100 is installed on the nacelle housing 10, the cable rod 6 passes through the flexible vibration damping connection device 100, and the cable nut 7 abuts against the upper end face of the fixing plate 4 of the flexible vibration damping connection device 100. When the cable rod 6 is subjected to axial force, the fixing plate 4 will move together with the cable rod 6. The vulcanized whole composed of the partition 2, the rubber layer 3 and the support 1 can play a vibration damping role for the fixing plate 4.
[0034] In one specific embodiment, the flexible vibration damping connection device 100 further includes an adapter plate 5, and the lower end face of the support 1 is fixedly connected to the nacelle cover 10 through the adapter plate 5. The adapter plate 5 has a step for positioning on its lower end face, which can be engaged within the through hole of the nacelle cover 10, thus facilitating installation.
[0035] During the installation of the flexible vibration damping connection device 100, the step on the lower end face of the adapter plate 5 is first aligned with the through hole of the nacelle cover 10, and then the adapter plate 5 is fixedly connected to the nacelle cover 10 with bolts. After that, the support 1 is fixedly connected to the adapter plate 5 with bolts.
[0036] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, multiple bolts for temporary fixation to the support 1 are evenly arranged along the circumference of the fixing plate 4. These bolts serve as temporary fixation during the transportation or installation of the flexible vibration damping connection device 100. Once the flexible vibration damping connection device 100 is installed with the nacelle cover 10 and put into use, the bolts connecting the fixing plate 4 and the support 1 need to be removed.
[0037] The specific structure of the fixing plate 4 provided according to the present invention is as follows. A stop portion 41 is provided at the edge of the fixing plate 4 to abut against the partition plate 2. That is, during operation, the stop portion 41 remains in contact with the edge of the partition plate 2, thereby preventing relative radial movement between the fixing plate 4 and the partition plate 2. In this embodiment, the through-hole size of the fixing plate 4 matches the size of the cable rod 6, while the through-hole sizes of other components are larger than the size of the cable rod 6. Under this configuration, when the cable rod 6 is subjected to radial force, there is radial movement space, which can drive the fixing plate 4 to move radially. Since the relative radial displacement between the fixing plate 4 and the partition plate 2 is limited by the stop portion 41, the partition plate 2 will move radially along with the fixing plate 4, thereby enabling the rubber layer 3 to play a role in radial vibration damping.
[0038] In this embodiment, the size of the through hole at the central axis of the fixing plate 4 matches the size of the cable rod 6. For example... Figure 3As shown, when the cable rod 6 is subjected to a deflection load, the fixing plate 4 will tilt along with the cable rod 6. To limit the tilt angle of the cable rod 6, on the one hand, when the fixing plate 4 tilts under the action of the cable rod 6, the stop part 41 can make rigid contact with the support 1, thereby limiting the tilt angle of the cable rod 6. On the other hand, the cable rod 6 can also make rigid contact with the adapter plate 5 or the support 1 when it tilts to the limit angle, thereby limiting the tilt angle of the cable rod 6.
[0039] This invention tilts the cable rod 6 within a certain angle, converting the deflection load into an axial load as much as possible, reducing the bending moment load on the cable rod 6, and extending its service life. Furthermore, since the fixed plate 4 and the partition plate 2 are in contact, the fixed plate 4 can rotate circumferentially relative to the partition plate 2. When the cable rod 6 is subjected to a deflection load, it can drive the fixed plate 4 to rotate adaptively circumferentially, further reducing the bending moment load on the cable rod 6.
[0040] In a preferred embodiment, a plurality of axial lifting holes 42 are evenly distributed along the circumferential direction on the fixing plate 4 to facilitate lifting during installation.
[0041] This invention vulcanizes the partition 2, rubber layer 3, and support 1 into a single unit. The use of an arc-shaped conical surface increases the contact area between the rubber layer 3 and the partition 2 and support 1, enabling the invention to maintain sufficient strength for basic connection functions within a relatively small volume. To further reduce the weight of the invention, the support 1 is a thin-walled component. Specifically, the support 1 includes a conical plate 11, a base 12, and reinforcing ribs 13. The bottom surface of the base 12 forms a plane for fixed connection with the adapter plate 5, and the conical plate 11 forms an arc-shaped conical surface for connection with the rubber layer 3. The lower end of the conical plate 11 is fixedly connected to the inner edge of the base 12. Multiple reinforcing ribs 13 are evenly distributed circumferentially on the outside of the conical plate 11, connecting the conical plate 11 and the base 12, thereby reinforcing the support 1.
[0042] In this embodiment, when it is necessary to connect the support 1 to the adapter plate 5, it should be done according to... Figure 1 At the position shown, simply connect the base 12 to the adapter plate 5 using bolts.
[0043] Example 2:
[0044] According to another embodiment of the invention, such as Figure 4 As shown, the side of the partition 2 closest to the fixing plate 4 is set as a flat surface, and the side of the fixing plate 4 closest to the partition 2 is set as a conical surface. That is, the lower end surface of the partition 2 is set as an arc-shaped conical surface that matches the shape of the support 1, the upper end surface of the partition 2 is set as a flat surface, and both the upper and lower end surfaces of the fixing plate 4 are set as flat surfaces. In this case, the bolts used to fix the fixing plate 4 and the support 1 in the original embodiment can be changed to fix the fixing plate 4 and the partition 2.
[0045] Other settings are the same as in Example 1, and will not be repeated here.
[0046] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0048] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0049] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A flexible vibration damping connection device for installing a cable rod with a cable nut, characterized in that, include: A support with a conical surface is provided (1); A partition plate (2) is provided on the conical surface of the support (1); The rubber layer (3) is fixed between the partition (2) and the support (1) by vulcanization. And a fixing plate (4) abutting against the partition (2), the side of the fixing plate (4) away from the partition (2) abutting against the cable nut; Among them, through holes for setting the cable rod are provided at the central axis of the support (1), partition (2), rubber layer (3) and fixing plate (4). After the cable rod is inserted into the through hole, the cable nut abuts against the upper end face of the fixing plate (4). The fixing plate (4) is configured to limit the tilt angle of the cable rod relative to the support (1). The through hole size at the central axis of the fixing plate (4) matches the size of the cable rod (6). When the cable rod (6) is subjected to deflection load, the fixing plate (4) tilts together with the cable rod (6). When the cable rod (6) tilts to the limit angle, it makes rigid contact with the support (1), thereby limiting the tilt angle of the cable rod (6).
2. The flexible vibration damping connection device according to claim 1, characterized in that, A stop (41) is provided on the edge of the fixed plate (4) to abut against the partition (2), and the stop (41) is used to prevent the fixed plate (4) and the partition (2) from moving radially relative to each other.
3. The flexible vibration damping connection device according to claim 2, characterized in that, When the fixing plate (4) tilts under the action of the cable rod, the stop (41) can rigidly contact the support (1), thereby limiting the tilt angle of the cable rod.
4. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, Both sides of the partition (2) are set as conical surfaces, and the side of the fixing plate (4) near the partition (2) is set as a conical surface.
5. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, The side of the partition (2) near the fixing plate (4) is set as a plane, and the side of the fixing plate (4) near the partition (2) is set as a cone.
6. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, The flexible vibration damping connection device also includes an adapter plate (5), which is fixedly connected to the support (1).
7. The flexible vibration damping connection device according to claim 6, characterized in that, A step for positioning is provided on the side of the adapter plate (5) away from the support (1).
8. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, The support (1) is a thin-walled component, including a conical plate (11) and a base (12), with the base (12) disposed at the bottom end of the conical plate (11).
9. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, Multiple bolts that connect to the support (1) are evenly arranged along the circumference of the fixing plate (4) to facilitate transportation and installation.
10. The flexible vibration damping connection device according to any one of claims 1 to 3, characterized in that, Multiple lifting holes (42) are evenly arranged along the circumference on the fixed plate (4).