CN116565785A

CN116565785A - Cable supporting device

Info

Publication number: CN116565785A
Application number: CN202310479615.6A
Authority: CN
Inventors: 缪李红; 黄琛; 张智伟
Original assignee: Shanghai Donghai Wind Power Generation Co ltd; Shanghai Electric Wind Power Group Co Ltd
Current assignee: Shanghai Donghai Wind Power Generation Co ltd; Shanghai Electric Wind Power Group Co Ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-08-08

Abstract

The invention discloses a cable support device, which is used for supporting cables in a tower, and comprises: the first end of the bridge is connected to the converter in the tower; the two flexible connection components, the first ends of the two flexible connection components are respectively connected with the second ends of the bridge frame, the second ends of the two flexible connection components are respectively connected with the wall of the tower barrel, and the flexible connection structure formed by the bridge frame and the two flexible connection components provides support for the cable.

Description

Cable supporting device

Technical Field

The invention relates to the technical field of towers, in particular to a cable supporting device.

Background

The diameter of the tower section at the lowest part of the tower barrel is larger (about 8000 mm), the main cable from the cabin along the barrel wall is required to be connected to a converter on the bottom platform, and the converter is usually positioned in the middle of the bottom platform, so that a cable supporting device is required to be arranged above the converter to provide support for the cable.

The existing cable supporting device is generally a rigid cable supporting device directly installed on the bottom platform, and the rigid cable supporting device is required to exceed the converter due to the height limitation of the body of the converter (about 2500 mm), so that the rigid cable supporting device is too high, the supporting device is unstable and needs to be installed on the bottom platform and can interfere with devices such as guardrails on the bottom platform, and the cable supporting device is inconvenient to design.

Disclosure of Invention

The invention aims to provide a cable supporting device. The rigid cable supporting device aims at solving the problems that in the prior art, the rigid cable supporting device is too high, the supporting device is unstable and needs to be installed on a bottom platform, and the rigid cable supporting device can interfere with devices such as guardrails on the bottom platform, so that the cable supporting device is inconvenient to design.

In order to achieve the above purpose, the invention is realized by the following technical scheme:

in one aspect, the present invention provides a cable support device for supporting a cable in a tower, comprising:

the first end of the bridge is connected to the converter in the tower;

the first ends of the two flexible connection components are respectively connected with the second ends of the bridge frame, the second ends of the two flexible connection components are respectively connected with the wall of the tower barrel, and the flexible connection structure formed by the bridge frame and the two flexible connection components provides support for the cable.

Preferably, the bridge comprises:

two support rods arranged in parallel;

the transverse rods are respectively arranged between the two support rods in parallel, and the two support rods and the transverse rods form a ladder frame structure;

the bridge is at least partially located above the laying area of the cable, and the length of the support bar matches the length of the laying area of the cable.

Preferably, the support rod projects on a plane where a laying area of the cable is located, and extends out of the laying area of the cable.

Preferably, the cross bar comprises at least one of a flat iron cross bar and a bent plate cross bar, and the surface of the cross bar is wrapped or coated with a buffer layer.

Preferably, the buffer layer includes: at least one of rubber and polyvinyl chloride.

Preferably, the first end of the bridge is provided with two first connecting pieces, and the two first connecting pieces are connected to the cable interface adjacent to the converter.

Preferably, each first connecting piece comprises a fixing plate, a first connecting hole is formed in the fixing plate, and a second connecting hole matched with the first connecting hole is formed in each supporting rod.

Preferably, each of the flexible connection units comprises:

rope connectors;

the first end of the second connecting piece is connected with the first end of the rope connecting piece, and the second end of the second connecting piece is connected with the second end of the bridge;

and the first end of the third connecting piece is connected with the second end of the rope connecting piece, and the second end of the third connecting piece is connected with the wall of the tower.

Preferably, the rope connecting piece is any one of a steel wire rope, a soft rope and a flexible rope.

Preferably, the second connector includes: and the first shackle is used for connecting the rope connecting piece and the bridge frame.

Preferably, the third connector includes:

the connecting plate is connected with the wall of the tower barrel;

the second shackle is arranged at the end part of the connecting plate and is connected with the connecting plate;

and the first end of the tensioning mechanism is connected with the second shackle, the second end of the tensioning mechanism is connected with the second end of the rope connecting piece, and the tensioning mechanism is used for tensioning the rope connecting piece.

Preferably, the connecting plate is an L-shaped plate, a third connecting hole is formed in the L-shaped plate, and the connecting plate is connected with the wall of the tower through the third connecting hole.

Preferably, the tightening mechanism comprises a rigging turnbuckle.

On the other hand, the invention also provides a tower, which comprises the cable supporting device and at least two connecting pieces, wherein the connecting pieces are assembled on two opposite sides of the inner wall of the tower in pairs, and the cable supporting device is detachably connected to the connecting pieces.

Preferably, at least two pairs of connectors are arranged on the inner wall of the tower, and the connectors are respectively arranged at different positions of the tower, and the cable supporting device is configured to:

the pairs of connectors at different positions are connected according to the laying requirements of the cables.

Preferably, the maximum diameter of the tower is greater than or equal to 6m, and/or the tower comprises any one of a steel tower, a concrete tower and a reinforced concrete tower.

Compared with the prior art, the invention has the following beneficial effects:

according to the cable supporting device, the bridge and the two flexible connecting assemblies are arranged, so that the device is directly connected with the wall of the tower barrel, the device does not need to be supported on the bottom platform, the flexible connecting mode is adopted, the problem that the whole device is unstable and interferes with the guardrail on the bottom platform in the existing rigid supporting device is solved, meanwhile, the cable supporting device is not limited by the height of the converter, the diameter of the wall of the tower barrel and the arrangement of bottom platform equipment, the whole structure is convenient to design, and the whole bending deformation of the device is controllable by arranging the rope connecting piece and the third connecting piece.

Drawings

For a clearer description of the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are one embodiment of the present invention, and that, without inventive effort, other drawings can be obtained by those skilled in the art from these drawings:

fig. 1 is a schematic view of a cable supporting device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a third connector according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating connection between a bridge and a rope connector according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first connector according to an embodiment of the invention.

Reference numerals illustrate: the device comprises a 1-bridge, a 2-second connecting piece, a 3-rope connecting piece, a 4-rigging turnbuckle, a 5-connecting plate, a 6-first connecting piece and a 7-second shackle.

Detailed Description

The cable support device according to the present invention will be described in further detail with reference to fig. 1-4 and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the invention. For a better understanding of the invention with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the invention, are included in the spirit and scope of the invention which is otherwise, without departing from the spirit or essential characteristics thereof.

In view of the problems that in the prior art, the rigid cable supporting device is too high, so that the supporting device is unstable and needs to be installed on the bottom platform, and the rigid cable supporting device can interfere with devices such as guardrails on the bottom platform, so that the cable supporting device is inconvenient to design.

In order to solve the above-mentioned problems, referring to fig. 1, in one aspect, the present embodiment provides a cable supporting device for supporting a cable in a tower, including: the first end of the bridge frame 1 is connected to a converter in the tower; the two flexible connection components are respectively connected with the second ends of the bridge frame 1 at the first ends, the second ends of the two flexible connection components are respectively connected with the wall of the tower barrel, and the flexible connection structure formed by the bridge frame 1 and the two flexible connection components provides support for the cable.

With continued reference to fig. 1, the bridge 1 in this embodiment includes: two support rods arranged in parallel; the two support rods and the plurality of cross rods form a ladder frame type structure, two first connecting pieces 6 are arranged at the first end of the bridge 1, the two first connecting pieces 6 are connected to the converter in the tower barrel, and the two first connecting pieces 6 are connected to positions adjacent to cable interfaces of the converter. The bridge is at least partially located above the laying area of the cable, and the length of the support bar matches the length of the laying area of the cable.

And the support rod projects on the plane where the cable laying area is located and extends out of the cable laying area.

The length of the bridge frame 1 is determined according to the position of the converter, and the places where cables are not required to be laid are connected by adopting steel wires. The cables are clamped from the nacelle along the cable at the wall of the drum to the cable interface of the current transformer and laid onto the bridge 1.

The horizontal pole includes at least one of band iron horizontal pole and bending plate horizontal pole, and specifically, bridge 1 adopts band iron and bending plate welding to form in this embodiment, also can form with square pipe or other section bar welding, also can replace with the cat ladder, needs to guarantee that bridge 1's intensity accords with the requirement. Meanwhile, the bridge 1 is designed to ensure that the surface has no defects such as burrs and the like, which damage the cable, so in this embodiment, the surface of the cross rod is wrapped or coated with a buffer layer, and the buffer layer specifically includes: at least one of rubber and polyvinyl chloride.

In some embodiments, the buffer layer has a thickness, and thus a buffer capacity. Also, a buffer layer with a smooth surface is preferred to facilitate cable payout. In these embodiments, the buffer layer is made of an insulating material.

Referring to fig. 4, each first connecting piece 6 includes a fixing plate, a first connecting hole is formed on the fixing plate, and a second connecting hole matched with the first connecting hole is formed on each supporting rod. The fixing plate is connected with the bridge 1 by penetrating through the first connecting hole and the second connecting hole through a bolt connecting piece, and the specific bolt connecting piece in the embodiment is a stud.

Each of the flexible connection units comprises: a rope connector 3; a second connecting piece 2, the first end of which is connected with the first end of the rope connecting piece 3, and the second end of which is connected with the second end of the bridge 1; and the first end of the third connecting piece is connected with the second end of the rope connecting piece 3, and the second end of the third connecting piece is connected with the wall of the tower.

The rope connecting piece 3 is any one of a steel wire rope, a soft rope and a flexible rope. Referring to fig. 1, in this embodiment, a steel wire rope is selected as the rope connecting member 3, and the length of the steel wire rope can be cut on site, so that the deformation of the whole cable supporting device is controllable.

Referring to fig. 3, the second connector 2 includes: a first shackle for connection between the rope connection 3 and the bridge 1. The arc-shaped shape of the first shackle can reduce abrasion when being connected with the steel wire rope. And the connection between the rigging turnbuckle 4 and the connecting plate 5 is facilitated through the detachable structure of the first shackle.

Referring to fig. 2, the third connector includes: the connecting plate 5 is connected with the wall of the tower barrel; a second shackle 7 provided at an end of the connection plate 5 and connected to the connection plate 5; and the first end of the tensioning mechanism is connected with the second shackle 7, the second end of the tensioning mechanism is connected with the second end of the rope connecting piece 3, and the tensioning mechanism is used for tensioning the rope connecting piece 3. The integral cable support device in this embodiment is of flexible construction and is required to be tensioned by a tensioning mechanism so that the bending deformation of the device is controllable.

In this embodiment, the connection plate 5 is an L-shaped plate, a third connection hole is formed in the L-shaped plate, and the connection plate 5 is connected with the wall of the tower through the third connection hole. Considering the form of the tower embedded part and the form of the bridge 1, the L-shaped plate in the embodiment adopts a bending plate. The connecting plate 5 is connected with the cylinder wall by a stud.

The tensioning mechanism comprises a rigging turnbuckle 4, the rigging turnbuckle 4 plays a role in adjusting and fastening, and the rigging turnbuckle 4 is used for controlling errors in consideration of machining errors such as the diameter of a tower barrel and the position of an embedded part.

On the other hand, the embodiment also provides a tower, which comprises the cable supporting device and at least two connecting pieces, wherein the connecting pieces are assembled on two opposite sides of the inner wall of the tower in pairs, and the cable supporting device is detachably connected to the connecting pieces.

Further, the tower inner wall is provided with two pairs of connecting pieces at least, sets up respectively in the different positions of tower, cable support device is configured as: the pairs of connectors at different positions are connected according to the laying requirements of the cables.

Thus, the position of the cable support means can be set as desired, thereby adjusting the laying area of the cable. In some embodiments, the connector comprises 4 pairs, which are respectively arranged at different heights inside the tower and at different positions of the tower and are positioned in different radial directions of the tower.

The maximum diameter of the tower barrel is larger than or equal to 6m. Thus, the cable support structure may be suitable for large-sized towers. In practice, the cable support structure may also be used in small-sized towers.

The tower cylinder comprises any one of a steel tower cylinder, a concrete tower cylinder and a reinforced concrete tower cylinder.

To sum up, the cable supporting device provided in this embodiment, through setting up crane span structure 1 and two flexible coupling assembling, make the device directly be connected with the section of thick bamboo wall of tower section of thick bamboo, need not to support on the bottom platform, adopt flexible coupling's mode light in weight, the problem that device whole is unstable and take place to interfere with guardrail on the bottom platform in having solved current rigid supporting device, simultaneously, cable supporting device in this embodiment does not receive converter height, the restriction that tower section of thick bamboo wall diameter and bottom platform equipment were arranged, overall structure is convenient for design, and through setting up rope connecting piece 3 and third connecting piece, make the holistic bending deformation of device controllable.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be understood that the terms "center," "height," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. A cable support device for supporting a cable in a tower, comprising:

the first end of the bridge is connected to the converter in the tower;

2. The cable support device of claim 1, wherein the bridge comprises:

two support rods arranged in parallel;

3. The cable support device of claim 2 wherein the support bar projects out of the lay area of the cable in a projection of the plane of the lay area of the cable.

4. A cable support device according to claim 3, wherein the cross bar comprises at least one of a flat iron cross bar and a bent plate cross bar, and the cross bar surface is wrapped or coated with a buffer layer.

5. The cable support device of claim 4, wherein the buffer layer comprises: at least one of rubber and polyvinyl chloride.

6. The cable support device of claim 1, wherein the first end of the bridge is provided with two first connectors, both of which are connected adjacent the cable interface of the current transformer.

7. The cable supporting device of claim 6, wherein each of the first connecting members comprises a fixing plate, wherein the fixing plate is provided with a first connecting hole, and each of the supporting rods is provided with a second connecting hole matched with the first connecting hole.

8. The cable support device of claim 1, wherein each of the flexible connection units comprises:

rope connectors;

9. The cable support device of claim 8, wherein the rope connector is any one of a wire rope, a soft rope, and a flexible cord.

10. The cable support device of claim 8 wherein the second connector comprises: and the first shackle is used for connecting the rope connecting piece and the bridge frame.

11. The cable support device of claim 8 wherein the third connector comprises:

the connecting plate is connected with the wall of the tower barrel;

12. The cable supporting device as claimed in claim 11, wherein the connection plate is an L-shaped plate, a third connection hole is formed in the L-shaped plate, and the connection plate is connected with the wall of the tower through the third connection hole.

13. The cable support device of claim 11, wherein the tensioning mechanism comprises a rigging turnbuckle.

14. A tower comprising a cable support device according to claims 1 to 13 and at least two connectors, said connectors being assembled in pairs on opposite sides of the inner wall of the tower, said cable support device being detachably connected to said connectors.

15. The tower of claim 14, wherein the tower inner wall is provided with at least two pairs of connectors, each at a different location of the tower, the cable support device being configured to:

16. The tower of claim 14, wherein the maximum diameter of the tower is greater than or equal to 6m, and/or the tower comprises any one of a steel tower, a concrete tower, and a reinforced concrete tower.