Cable fixing device and wind turbine

Abstract

The present disclosure relates to a cable fixing device and a wind turbine generator set, wherein the cable fixing device comprises: a connecting member, which is used to be connected to the saddle bridge of the wind turbine generator set; and a clamping member, which can be opened and closed on the connecting member, wherein the clamping member has at least two clamping surfaces arranged opposite to each other, and a fixing groove for accommodating a cable is provided on the clamping surface to form a clamping hole when the two clamping surfaces are fitted together. The clamping member of the present disclosure is installed at the saddle bridge of the wind turbine generator set through the connecting member, and the clamping member has at least two clamping surfaces to clamp the cable, and a fixing groove is provided on the clamping surface, and the cable is accommodated in the fixing groove, and the two fixing grooves are fitted together to form a clamping hole, so as to increase the contact area between the clamping member and the cable, thereby increasing the force-bearing area of ​​the cable, and achieving the purpose of preventing the cable from sinking.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cable installation, and in particular to a cable fixing device and a wind turbine generator set. Background Art

[0002] When the wind turbine is running, the cables at the saddle bridge are subjected to the torque generated by the yaw rotation and unwinding of the wind turbine itself, as well as the vibration caused by the aerodynamic loads on the nacelle and tower under the action of external wind. As a result, the cables at the saddle bridge are also rotating and shaking all the time. In the related technology, the cable fixing device is a thin rope net bag, which has a small contact area with the cable. During the operation of the unit, due to the vibration of the unit and the dead weight of the cable, the thin rope net bag will damage the cable protective layer, causing the cable to sink and cause a short circuit, which will then burn the cable or cause more serious accidents such as wind turbine fires. Utility Model Content

[0003] The purpose of the present disclosure is to provide a cable fixing device and a wind turbine generator set, which can solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a cable fixing device, including: a connecting piece, used to be connected to the saddle bridge of a wind turbine; and a clamping piece, which can be opened and closed on the connecting piece, and the clamping piece has at least two clamping surfaces arranged opposite to each other, and the clamping surfaces are provided with fixing grooves for accommodating cables to form a clamping hole when the two clamping surfaces are in contact.

[0005] Optionally, each of the clamping surfaces is respectively provided with a plurality of fixing grooves with the same or different apertures, and the apertures of two fixing grooves arranged opposite to each other are the same to form the clamping hole.

[0006] Optionally, the clamping member includes a plurality of clamping plates, an opposite side of two adjacent clamping plates is the clamping surface, and the plurality of clamping plates are fastened by fasteners.

[0007] Optionally, the connecting member is constructed as a frame, a first mounting hole is provided on the frame, a first through hole is provided on the clamping plate, and the fastener includes a first bolt and a first nut, the first bolt passes through the first through holes on the clamping plates and the first mounting hole on the frame in sequence and is fastened by the first nut.

[0008] Optionally, a second through hole is provided on the clamping plate, and the fastener also includes a second bolt and a second nut. A nut placement hole is provided on the side of the clamping plate located in the middle part that is away from the insertion direction of the second bolt so that the second nut is flush with the surface of the clamping plate. The second bolt passes through the second through holes on the clamping plate located on the outside and the clamping plate located in the middle part in turn and is connected to the second nut to connect multiple clamping plates one by one.

[0009] Optionally, the connecting member has at least two opposite sides connected to the clamping members.

[0010] Optionally, a second mounting hole is provided on the frame, and the cable fixing device also includes a third bolt and a third nut. A connecting beam is provided at the saddle bridge, and a connecting hole is provided on the connecting beam. The second mounting hole corresponds to the connecting hole, and the third bolt passes through the connecting hole and the second mounting hole in sequence and is fastened by the third nut.

[0011] Optionally, the clamping hole extends to a length of 150 mm to 200 mm.

[0012] Optionally, the clamping hole extends in a height direction to suspend the cable.

[0013] The second object of the present disclosure is to provide a wind turbine generator set, comprising: a connecting beam, arranged at the saddle bridge; and the above-mentioned cable fixing device, installed on the connecting beam.

[0014] Through the above technical scheme, in the cable fixing device provided by the present invention, the clamping member is installed at the saddle bridge of the wind turbine through a connecting member, the clamping member has at least two clamping surfaces to clamp the cable, and the clamping surface is provided with a fixing groove, the cable is accommodated in the fixing groove, and the two fixing grooves are fitted to form a clamping hole to increase the contact area between the clamping member and the cable, thereby increasing the force-bearing area of ​​the cable and achieving the purpose of preventing the cable from sinking.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0017] Figure 1 is a schematic diagram of the installation of the cable fixing device in the present disclosure;

[0018] Figure 2 is a schematic diagram of the structure of the connecting member in the present disclosure;

[0019] Figure 3 is a schematic structural diagram of one of the clamping plates disclosed in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of another clamping plate in the present disclosure.

[0021] Description of Reference Numerals

[0022] 1. Connecting piece; 11. First mounting hole; 12. Second mounting hole; 2. Clamping piece; 21. First through hole; 22. Second through hole; 23. Clamping hole; 24. Clamping plate; 241. Fixing groove; 242. Clamping surface; 243. Nut placement hole; 3. Connecting beam; 31. Connecting hole. DETAILED DESCRIPTION

[0023] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0024] In the present disclosure, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower positions of the corresponding parts in the direction of gravity when in use, and "inner" and "outer" refer to the inner and outer positions relative to the contour of the parts or structures themselves. In addition, it should be noted that the terms used, such as "first, second, third", etc., are used to distinguish one element from another, and do not have order and importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0025] like Figure 1 As shown, the present disclosure provides a cable fixing device, including: a connecting member 1, used to be connected to the saddle bridge of a wind turbine; and a clamping member 2, which is openably arranged on the connecting member 1, and the clamping member 2 has at least two clamping surfaces 242 arranged opposite to each other, and a fixing groove 241 for accommodating a cable is provided on the clamping surface 242 to form a clamping hole 23 when the two clamping surfaces 242 are in contact.

[0026] Through the above technical solution, in the cable fixing device provided by the present invention, the clamping member 2 is installed at the saddle bridge of the wind turbine through the connecting member 1. The electric energy generated by the wind turbine is transmitted from the nacelle generator to the tower base through the cable through the tower saddle bridge. During the power generation process, the wind turbine will perform a yaw process to the wind and rotate. The function of the saddle bridge is to prevent the cable from falling off due to excessive torsion. When the wind turbine is running, the cable at the saddle bridge is subjected to the torque generated by the yaw rotation and unwinding of the unit itself, as well as the vibration caused by the aerodynamic load on the nacelle and the tower under the action of external wind. The situation causes the cable at the saddle bridge to rotate and shake all the time, so it is necessary to set up a cable fixing device. The clamping member 2 has at least two clamping surfaces 242 to clamp the cable. The cable is clamped by the two clamping surfaces 242 so that the cable and the clamping member 2 have a certain contact area, and a fixing groove 241 is provided on the clamping surface 242. The cable is accommodated in the fixing groove 241. The two fixing grooves 241 are fitted to form a clamping hole 23 to increase the contact area between the clamping member 2 and the cable, thereby increasing the force-bearing area of ​​the cable, thereby preventing the cable from sinking, and at the same time will not cause damage to the cable protective layer.

[0027] As an optional implementation, Figure 1 and Figure 3-4 As shown, each clamping surface 242 is provided with a plurality of fixing grooves 241 with the same or different apertures. The apertures of two oppositely arranged fixing grooves 241 are the same to form a clamping hole 23. There are a plurality of clamping holes 23, and the apertures can be the same or different to clamp multiple cables.

[0028] As an optional implementation, Figure 1 As shown, the clamping member 2 includes a plurality of clamping plates 24, for example, three, four or five, etc., depending on actual needs. For example, in the present disclosure, three clamping plates 24 are provided, and the opposite side of two adjacent clamping plates 24 is a clamping surface 242, that is, the clamping plate 24 located on the outer side has a clamping surface 242, such as Figure 3 and the clamping plate 24 located in the middle portion has two opposite clamping surfaces 242, such as Figure 4 As shown, a plurality of clamping plates 24 are fastened by fasteners, and a plurality of clamping plates 24 are provided to form a plurality of rows of clamping holes 23 to fix more cables.

[0029] Alternatively, if Figure 1-2As shown, the connecting member 1 is constructed as a frame, for example, a cubic frame, a first mounting hole 11 is provided on the frame, a first through hole 21 is provided on the clamping plate 24, and the fastener includes a first bolt and a first nut. The first bolt passes through the first through holes 21 on the plurality of clamping plates 24 and the first mounting hole 11 on the frame in sequence and is fastened by the first nut. The clamping member 2 fixes its own plurality of clamping plates 24 and connects to the connecting member 1 by the first bolt and the first nut. For example, the first mounting hole 11 and the first through hole 21 are both bolt holes. The reason why the connecting member 1 is constructed as a frame is that there is space to install the first nut. The end of the first nut extends into the space of the frame and then fixes the first nut, so that the first bolt connection is tighter. The first nut can be a locking nut. If the connecting member 1 is a solid block, only the bolt can be connected but the nut cannot be connected, so that the first bolt is easy to loosen.

[0030] Alternatively, if Figure 4 As shown, a second through hole 22 is provided on the clamping plate 24, and the fastener also includes a second bolt and a second nut. A nut placement hole 243 is provided on the side of the clamping plate 24 located in the middle part away from the insertion direction of the second bolt so that the second nut is flush with the surface of the clamping plate 24. The second bolt passes through the second through holes 22 on the clamping plate 24 located on the outside and the clamping plate 24 located in the middle part in turn and is connected to the second nut to connect multiple clamping plates 24 one by one. The second nut is placed in the nut placement hole 243 so that the second nut will not take up space when the two clamping plates 24 are fitted together. Connect one by one, that is, first connect the first two clamping plates 24 to fix part of the cable. If there is more than one middle clamping plate 24, a nut placement hole 243 is also set on the third clamping plate 24. The nut placement hole 243 is staggered with the nut placement hole 243 on the second clamping plate 24. Then, another second bolt is used to pass through the first, second and third clamping plates 24 in turn and connect with the second nut. The subsequent steps are the same. In this way, the cable can be fixed layer by layer, and then the last clamping plate 24 is connected by the first bolt, and the entire clamping member 2 is connected to the connecting member 1.

[0031] Alternatively, if Figure 1-2 As shown, a second mounting hole 12 is provided on the frame, and the second mounting hole 12 is a bolt hole or a through hole. The cable fixing device also includes a third bolt and a third nut. A connecting beam 3 is provided at the saddle bridge, and a connecting hole 31 is provided on the connecting beam 3. The second mounting hole 12 corresponds to the connecting hole 31. The third bolt passes through the connecting hole 31 and the second mounting hole 12 in sequence and is fastened by the third nut. The connecting hole 31 is the original connection hole for connecting the thin rope net bag, so there is no need to change the original structure. The connecting member 1 is connected to the connecting beam 3 by the third nut and the third bolt, which is more tightened. The first mounting hole 11 and the second mounting hole 12 are respectively located at both ends of the frame to prevent the connecting beam 3 from interfering with the installation of the clamp 2.

[0032] As an optional implementation, Figure 1 As shown, at least two opposite sides of the connector 1 are connected with clamping members 2. Of course, clamping members 2 can also be installed on other sides. Moreover, more clamping members 2 can be provided to fix more cables according to specific circumstances.

[0033] As an optional embodiment, the extending length of the clamping hole 23 is 150mm-200mm, for example, it can be 150mm, 180mm, 200mm, etc., to ensure that the clamping hole 23 has sufficient contact area with the cable to prevent the cable from sinking and prevent damage to the cable protective layer.

[0034] As an optional implementation, Figure 1 As shown, the clamping hole 23 extends in the height direction to hoist the cable. Generally, the cables at the saddle bridge are hoisted. The clamping hole 23 extends in the height direction to extend in the same direction as the cable to avoid bending of the cable.

[0035] like Figure 1 As shown, the second purpose of the present disclosure is to provide a wind turbine generator set, including: a connecting beam 3, arranged at the saddle bridge; the above-mentioned cable fixing device, installed on the connecting beam 3, the cable fixing device of the present disclosure can increase the force-bearing area of ​​the cable, thereby achieving the purpose of preventing the cable from sinking.

[0036] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0038] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A cable fixing device, characterized in that: include: A connector, used for connecting to the saddle bridge of a wind turbine; as well as The clamping member is arranged on the connecting member in an openable and closable manner. The clamping member has at least two clamping surfaces arranged opposite to each other. The clamping surfaces are provided with fixing grooves for accommodating cables so as to form a clamping hole when the two clamping surfaces are abutted.

2. The cable fixing device according to claim 1, characterized in that: A plurality of fixing grooves with the same or different apertures are respectively formed on each of the clamping surfaces, and the apertures of two fixing grooves arranged opposite to each other are the same to form the clamping hole.

3. The cable fixing device according to claim 1 or 2, characterized in that: The clamping member comprises a plurality of clamping plates, the opposite side of two adjacent clamping plates being the clamping surface, and the plurality of clamping plates are fastened by fasteners.

4. The cable fixing device according to claim 3, characterized in that: The connecting member is constructed as a frame, a first mounting hole is provided on the frame, a first through hole is provided on the clamping plate, and the fastener includes a first bolt and a first nut. The first bolt passes through the first through holes on the clamping plates and the first mounting hole on the frame in sequence and is fastened by the first nut.

5. The cable fixture device according to claim 3, characterized in that: A second through hole is provided on the clamping plate, and the fastener also includes a second bolt and a second nut. A nut placement hole is provided on the side of the clamping plate located in the middle part that is away from the insertion direction of the second bolt so that the second nut is flush with the surface of the clamping plate. The second bolt passes through the second through holes on the clamping plate located on the outer side and the clamping plate located in the middle part in turn and is connected to the second nut to connect multiple clamping plates one by one.

6. The cable fixture device according to claim 1, characterized in that: The connecting member has at least two opposite sides connected to the clamping members.

7. The cable fixture device according to claim 4, characterized in that: The frame is provided with a second mounting hole, the cable fixing device also includes a third bolt and a third nut, the saddle bridge is provided with a connecting beam, the connecting beam is provided with a connecting hole, the second mounting hole corresponds to the connecting hole, the third bolt passes through the connecting hole and the second mounting hole in sequence and is fastened by the third nut.

8. The cable fixture device according to claim 1, characterized in that: The extending length of the clamping hole is 150mm-200mm.

9. The cable fixture device according to claim 1, characterized in that: The clamping hole extends in a height direction to suspend the cable.

10. A wind turbine generator set, characterized in that: include: A connecting beam, arranged at the saddle bridge; The cable fixing device according to any one of claims 1 to 9 is installed on the connecting beam.

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