A cable support device for a wind power tower

Abstract

The utility model belongs to cable installation technical field especially relates to a cable support device of wind power generation tower drum. The technology includes the guide ring of horizontal setting, is provided with the installation assembly of installing guide ring on the inside wall of power generation tower drum on the right side wall of guide ring, the vertical setting of free rotation's swivel ring is arranged in the guide ring, the inner side wall of swivel ring is opened and has the through slot of upper and lower intercommunication, the vertical wear and tear of the through slot is installed with the lifting rope, the outer sleeve ring of free rotation is sleeved on the outer side wall of guide ring, and the lifting rope upper end is detachably installed at the top of outer sleeve ring, and the snap ring is installed on the lifting rope below swivel ring. In the utility model, when the cable twists because of the yaw, the ball mechanism in the swivel ring makes it low resistance self -adaptation rotation, thereby eliminating the rigid friction and scraping between the cable outer skin and swivel ring, when the cable swings, this structure can effectively reduce the cable impact tower drum, and eliminates the security risk that the structure is loose because of long -term impact.

Description

Technical Field

[0001] This utility model belongs to the field of cable installation technology, and in particular relates to a cable support device for a wind power generation tower. Background Technology

[0002] Wind power, as a clean and renewable energy source, plays a crucial role in the global energy structure transformation. Ensuring the safe, stable, and long-term operation of wind turbine generators is of great significance for improving energy efficiency and reducing operation and maintenance costs. Wind turbine generators contain a large number of power, control, and communication cables. Currently, for cables installed inside the tower, a common method is to allow them to hang naturally from the nacelle, supplemented by guide rings on multi-layered platform plates for restraint and guidance. This structure, to a certain extent, serves to bear the weight and prevent excessive cable swaying.

[0003] However, the operating characteristics of wind turbine generators necessitate frequent yaw and pitch maneuvers in their nacelles according to changes in wind direction. During this process, the cable bundle suspended at the center of the tower undergoes reciprocating twisting and oscillation. The kinetic energy generated by this oscillation causes it to continuously impact the edge of the platform plate and rigid guide ring inside the tower, easily leading to wear on the cable outer sheath, damage to the insulation layer, and even damage to the internal core wires. This seriously threatens the operational safety of the generator set and significantly shortens the service life of the cables. Utility Model Content

[0004] The purpose of this utility model is to provide a cable support device for wind power generation towers, which has a simple structure and a stable structure formed by the suspension rope and the swivel, effectively reducing the impact of the cable swinging on the tower.

[0005] The cable support device for the wind power generation tower includes a horizontally arranged guide ring. An installation assembly for mounting the guide ring on the inner wall of the power generation tower is provided on the right side wall of the guide ring. A freely rotating ring is vertically arranged inside the guide ring. A through groove is opened on the inner wall of the rotating ring, and a lifting rope is vertically threaded through the through groove. A freely rotating outer ring is fitted on the outer wall of the guide ring. The upper end of the lifting rope is detachably installed on the top of the outer ring. A retaining ring is installed on the lifting rope below the rotating ring.

[0006] Furthermore, a groove is provided on the inner side wall of the guide ring. The groove has an annular structure, and a rod is horizontally inserted into the groove. One end of the rod is provided with a freely rolling ball, and the other end of the rod passes through the groove and is fixed to the outer side wall of the rotating ring.

[0007] Furthermore, a limiting groove is formed inward on the outer wall of the guide ring. The limiting groove has an annular structure, and an insert block is independently installed in the limiting groove. The insert block is fixed to the bottom of the outer ring.

[0008] Furthermore, a hook is vertically installed at the top of the outer ring, and a hanging ring matching the hook is horizontally fixed on the suspension rope.

[0009] Furthermore, the mounting assembly includes a connecting rod, which is horizontally fixed to the side wall of the guide ring, and a fixing plate is vertically fixed to the end of the connecting rod, with bolts threaded through the fixing plate.

[0010] Furthermore, a liner is fixed on the inner wall of the rotating ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, when the cable twists due to yaw, the ball bearing mechanism inside the swivel allows it to rotate adaptively with low resistance, thereby eliminating rigid friction and scraping between the cable sheath and the swivel, solving the problem of cable sheath wear due to twisting. The suspension rope bears the main weight of the cable, while the guide ring and swivel play an auxiliary supporting and guiding role. Together, they form a stable structure with the upper end suspended and the middle and lower parts supported. When the cable swings, this structure can effectively reduce the impact of the cable on the tower platform plate, elevator railings and other internal facilities, eliminating the safety hazard of structural loosening caused by long-term impact. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Top view of the central fixed plate; Figure 3 for Figure 1 Top view of the guide ring; Figure 4 for Figure 1 Top view of the inner and outer rings; The components in the diagram are named as follows: 1. Outer ring; 2. Guide ring; 3. Ball bearing; 4. Insert rod; 5. Pad; 6. Lifting rope; 7. Hanging ring; 8. Hook; 9. Insert block; 10. Fixing plate; 11. Bolt; 12. Connecting rod; 13. Snap ring; 14. Through groove; 15. Rotary ring; 16. Locking rod. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. 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.

[0014] Example 1 This embodiment describes a cable support device for a wind power generation tower, such as... Figures 1 to 4As shown, it includes a horizontally arranged guide ring 2, which is installed on the inner wall of the power generation tower. The cable is vertically inserted into the guide ring 2. The guide ring 2 restricts the cable and prevents the cable from shaking and hitting the power generation tower due to the steering of the servo motor. The connecting rod 12 is horizontally fixed to the side wall of the guide ring 2, and a fixing plate 10 is vertically fixed to the end of the connecting rod 12. One end of the connecting rod 12 is fixed to the side wall of the guide ring 2, and the other end is fixed to the fixing plate 10. Bolts 11 are installed on the fixing plate 10, and the fixing plate 10 is fixed to the inner side wall of the power generation tower by the bolts 11. This paragraph as a whole constitutes the installation assembly for installing the guide ring 2 on the inner side wall of the power generation tower. Of course, in the installation assembly, the fixing plate 10 is preferably an arc-shaped structure. The arc-shaped structure of the fixing plate 10 matches the inner side wall of the power generation tower, improving the stability of the fixing plate 10 after installation. A freely rotating ring 15 is vertically arranged inside the guide ring 2. The rotating ring 15 is vertically inserted inside the guide ring 2 and rotates freely inside the guide ring 2, rotating together with the rotation of the cable. A through groove 14 is provided on the inner side wall of the rotating ring 15, and the through groove 14 is provided on the inner side wall of the rotating ring 15, and the through groove 14 is connected to the upper and lower parts. A suspension rope 6 is vertically installed inside the through groove 14. The suspension rope 6 moves up and down inside the through groove 14 and is used to support the main weight of the cable. The suspension rope 6 is made of high-strength, corrosion-resistant Kevlar fiber rope or nylon rope. A freely rotating outer ring 1 is fitted on the outer wall of the guide ring 2. The outer ring 1 has a cover plate structure with a central opening for the cable to pass through. The top of the inner ring 1 presses against the top of the guide ring 2. The circumferential side wall of the outer ring 1 wraps around the outer wall of the guide ring 2. The outer ring 1 rotates together with the cable, which fixes the cable without affecting the rotation of the cable caused by the servo motor swing. The upper end of the suspension rope 6 is detachably installed on the top of the outer ring 1. The upper end of the suspension rope 6 passes through the through groove 14 and is connected to the outer ring 1. A retaining ring 13 is installed on the suspension rope 6 below the swivel 15. The retaining ring 13 is clamped to the side wall of the cable to bear the weight of the cable and together with the swivel 15, it supports the entire weight of the cable.

[0015] This embodiment further illustrates the technology, such as Figure 1As shown, a pad 5 is fixed on the inner wall of the swivel 15. The pad 5 is fixed on the inner wall of the swivel 15, and the pad 5 separates the inner wall of the swivel 15 from the outer sheath of the cable, so as to avoid repeated friction between the cable and the inner wall of the swivel 15 when the cable is twisted, which would cause damage to the cable sheath. The pad 5 can also improve the fixing effect of the cable and the fixing effect of the swivel 15 on the cable. The pad 5 is made of wear-resistant and highly elastic engineering plastic or nylon pad to prevent the cable sheath from being abraded when twisted.

[0016] Working principle: The guide ring 2 is installed on the inner wall of the power generation tower via an installation assembly. The cable is vertically inserted into the swivel ring 15. The cable sheath is separated from the inner wall of the swivel ring 15 by the pad 5. After the cable passes through the swivel ring 15, it is fixed to the suspension rope 6 by the retaining ring 13. The hanging ring 7 fixed to the upper end of the suspension rope 6 is fitted onto the hook 8. The suspension rope 6 bears most of the weight of the cable. The swivel ring 15, together with the suspension rope 6, provides auxiliary support for the cable, so that the cable hangs vertically and stably inside the power generation tower. When the cable twists due to the rotation of the servo motor, the ball bearing 3 rolls along the groove of the annular structure, causing the swivel ring 15 to rotate within the guide ring 2. The insert block 9 rotates along the limiting groove of the annular structure, and the outer ring 1 rotates along the outer wall of the guide ring 2, thus adaptively cooperating with the rotation of the cable and providing support for the cable while cooperating with the twisting of the cable.

[0017] Example 2 This embodiment further illustrates the technology, such as Figure 1 and Figure 3 As shown, a groove is provided on the inner sidewall of the guide ring 2. The groove has an annular structure and is located on the inner sidewall of the guide ring 2. A rod 4 is horizontally inserted into the slide groove and rotates along the slide groove. One end of the insert rod 4 is provided with a freely rolling ball 3. The other end of the insert rod 4 passes through the slide groove and is fixed on the outer wall of the rotating ring 15. One end of the insert rod 4 is inserted into the slide groove. A limiting slide groove is opened at the end of the insert rod 4. The inner wall of the limiting slide groove has a spherical structure. The ball 3 is set in the limiting slide groove. The outer wall of the ball 3 extends out of the limiting slide groove and abuts against the groove wall. The other end of the insert rod 4 passes through the slide groove and is fixed on the outer wall of the rotating ring 15. The rotating ring 15 rotates in the guide ring 2 by the ball 3 rolling along the groove wall.

[0018] In this embodiment, the cable is vertically threaded through the swivel 15. When the cable twists due to the rotation of the servo motor, the ball 3 rolls along the groove wall, causing the swivel 15 to rotate within the guide ring 2 following the twist of the cable. This allows the swivel 15 to support the cable while adapting to the twist of the cable and rotating within the guide ring 2.

[0019] Example 3 This embodiment further illustrates the technology, such as Figure 1 As shown, a limiting groove is formed inward on the outer side wall of the guide ring 2. The limiting groove has a ring structure and is formed on the outer side wall of the guide ring 2, extending inward along the outer side wall of the guide ring 2. An insert 9 is independently installed in the limiting groove. The insert 9 is fixed to the bottom of the outer ring 1. The insert 9 is horizontally installed in the limiting groove and rotates along the limiting groove. The insert 9 is fixed to the bottom of the outer ring 1. The rotation of the insert 9 in the limiting groove drives the outer ring 1 to rotate on the outer wall of the guide ring 2.

[0020] In this embodiment, the cable is fixed to the suspension rope 6 by the retaining ring 13. The suspension rope 6 bears part of the weight of the cable. When the cable twists due to the rotation of the servo motor, the plug 9 rotates in the limiting groove, which drives the outer ring 1 to rotate on the outer side wall of the guide ring 2. This allows the suspension rope 6 to support the cable while adapting to the twisting of the cable and rotating on the outside of the guide ring 2.

[0021] Example 4 This embodiment further illustrates the technology, such as Figure 1 and Figure 4 As shown, a hook 8 is vertically installed on the top of the outer ring 1. The hook 8 is vertically installed on the top of the outer ring 1, near the internal through hole of the outer ring 1. The hook 8 has an overall "L" shaped structure. The vertical section of the hook 8 is vertically fixed to the top of the outer ring 1, and the horizontal section of the hook 8 is horizontally set on the top of the outer ring 1. A hanging ring 7 that matches the hook 8 is horizontally fixed on the suspension rope 6. One end of the hanging ring 7 is horizontally fixed on the suspension rope 6, and the other end of the hanging ring 7 has a ring-shaped structure and is fitted onto the vertical section of the hook 8.

[0022] In this embodiment, the device is suspended from the hook 8 by the hanging ring 7, which is fixed to the suspension rope 6. The hanging ring 7 and the hook 8 provide support for the suspension rope 6 to support the weight of the suspension rope 6 and the cable.

[0023] In this embodiment, a through groove can be vertically opened on the hook 8, and a locking rod 16 is vertically installed in the through groove. The locking rod 16 locks the hanging ring 7 in the hook 8 to prevent the hanging ring 7 from slipping off the hook 8 due to the cable twisting and colliding with it.

Claims

1. A cable support device for a wind power generation tower, comprising a horizontally arranged guide ring (2), wherein an installation assembly for mounting the guide ring (2) on the inner wall of the wind power generation tower is provided on the right side wall of the guide ring (2), characterized in that: The guide ring (2) has a vertically arranged rotating ring (15) with a through groove (14) on its inner side wall. A hanging rope (6) is vertically threaded through the through groove (14). A freely rotating outer ring (1) is fitted on the outer side wall of the guide ring (2). The upper end of the hanging rope (6) is detachably installed on the top of the outer ring (1). A retaining ring (13) is installed on the hanging rope (6) below the rotating ring (15).

2. The cable support device for a wind power generation tower according to claim 1, characterized in that: The inner sidewall of the guide ring (2) is provided with a groove. The groove has a ring structure and a rod (4) is horizontally inserted in the groove. One end of the rod (4) is provided with a freely rolling ball (3). The other end of the rod (4) passes through the groove and is fixed on the outer sidewall of the rotating ring (15).

3. The cable support device for a wind power generation tower according to claim 1, characterized in that: The outer wall of the guide ring (2) has a limiting groove inward. The limiting groove has a ring structure and an insert (9) is independently installed in the limiting groove. The insert (9) is fixed to the bottom of the outer ring (1).

4. The cable support device for a wind power generation tower according to claim 1, characterized in that: The top of the outer ring (1) is vertically mounted with a hook (8), and a hanging ring (7) matching the hook (8) is horizontally fixed on the hanging rope (6).

5. The cable support device for a wind power generation tower according to claim 1, characterized in that: The mounting assembly includes a connecting rod (12), which is horizontally fixed to the side wall of the guide ring (2), and a fixing plate (10) is vertically fixed to the end of the connecting rod (12), with bolts (11) threaded through the fixing plate (10).

6. The cable support device for a wind power generation tower according to claim 1, characterized in that: A pad (5) is fixed on the inner wall of the rotating ring (15).

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