Fan tower drum cable anti-abrasion device
By using structures such as extension support plates, fixed rings and spring shock absorbers in the tower cable anti-wear device of wind turbine sets, the wear problem of overhanging cables due to tower swing is solved, and the cable swing and safety is improved effect.
Patent Information
- Application Number
- CN202420958052.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-06
AI Technical Summary
During the operation of the wind turbine, the overhanging cable swings violently due to the swing of the tower, which is seriously worn and has safety hazards. Existing solutions such as adding edge protective sleeves cannot completely avoid wear.
Design a fan tower cable anti-wear device, including a saddle bridge and main guard pipe ring, is equipped with an extension support plate and a fixing ring, a built-in spring shock absorber and a bayonet structure, and clamp the cable through a spring shock absorber and bayonet. Reduce swing and avoid wear.
It effectively reduces the swing of the cable on the saddle bridge, avoids wear between the cable and the saddle bridge, and improves the safety of the cable use.
Smart Images
Figure CN222254219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable anti-wear tools, in particular to a wind turbine tower cable anti-wear device. Background Art
[0002] During the operation of a wind turbine, the head of the wind turbine must always face the wind direction. As the wind direction changes, the yaw motor will drive the blades and the head to rotate and adjust to the windward direction. A section of the power cable and model cable from the head to the bottom of the tower hangs down from the center line of the tower to the bottom, so that each cable has the ability to twist within a certain angle.
[0003] However, the height of the tower is usually more than 20 meters. The force of the wind will cause the tower and the cabin to swing back and forth, which in turn drives the suspended cables to swing violently in the tower, causing the saddle bridge cables to swing back and forth, move back and forth on the saddle bridge, or hit the guard plates on both sides of the saddle bridge, damaging the cables. This reciprocating process will cause the cable insulation layer to wear out, resulting in a short circuit failure that threatens the personal safety of on-site workers.
[0004] Therefore, the existing saddle bridge has the disadvantages of safety disclosure, such as the operation of the fan easily causing cable wear, and edge protection covers need to be added to the guard plates on both sides of the saddle bridge. Utility Model Content
[0005] The utility model aims to provide a wind turbine tower cable anti-wear device capable of reducing the swing of suspended cables and preventing the cables from being worn and causing potential safety hazards.
[0006] The embodiment of the utility model is realized through the following technical scheme: a wind turbine tower cable wear protection device, comprising a saddle bridge and a main protective pipe ring, both sides of the saddle bridge are provided with extension support plates, the front end of the extension support plate is connected to a fixing ring, and the surface of the fixing ring is provided with a guide groove; the main protective pipe ring is arranged in the fixing ring, and a spring shock absorber is arranged on the outside of the main protective pipe ring, and the spring shock absorber comprises a connecting rod and a buffer spring, the buffer spring is sleeved on the connecting rod and clamped between the fixing ring and the main protective pipe ring, one end of the connecting rod passes through the guide groove, so that the rotation of the main protective pipe ring will drive the connecting rod to rotate along the guide groove.
[0007] Preferably, the main protective tube ring includes an inner ring and an outer ring, the outer surface of the inner ring is provided with a plurality of first bayonet holes, and the outer ring is provided with second bayonet holes corresponding to the first bayonet holes, and the cable is clamped by the first bayonet holes and the second bayonet holes.
[0008] Preferably, the outer ring adopts a split splicing structure, and a plurality of connecting screws are connected between the outer ring and the inner ring.
[0009] Preferably, the outer ring surface is provided with a plurality of heat dissipation holes penetrating inside and outside.
[0010] Preferably, the first bayonet and the second bayonet are arc-shaped or square grooves.
[0011] Preferably, a first wire clamp bracket and a second wire clamp bracket are provided on the upper surface of the saddle bridge, the first wire clamp bracket is provided at the front end of the saddle bridge, and the second wire clamp bracket is provided at the rear end of the saddle bridge.
[0012] Preferably, it also includes a gravity block clamped on the cable, and the gravity block is arranged between the second wire clamp bracket and the main protective tube ring.
[0013] Preferably, the surface of the saddle bridge is provided with a foam pad.
[0014] The technical solution of the embodiments of the utility model has at least the following advantages and beneficial effects: the utility model arranges fixed extension support plates and fixed rings on both sides of the saddle bridge, and the main protective tube ring wraps the cable as a whole and fixes it in the fixed ring. When the cable swings, it drives the main protective tube ring to squeeze the spring shock absorber to absorb energy. At the same time, the cable can also drive the main protective tube ring to rotate relative to the fixed ring, so that the swing of the cable under the main protective tube ring is reduced, thereby achieving the purpose of reducing the excessive swing of the cable on the saddle bridge and avoiding wear between the cable and the saddle bridge. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 A schematic structural diagram of a wind turbine tower cable anti-wear device provided in an embodiment of the utility model;
[0017] Figure 2 It is a top view of the wind turbine tower cable anti-wear device in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the main protective pipe ring in the utility model.
[0019] Icons: 1-saddle bridge, 2-main guard ring, 21-inner ring, 211-first bayonet, 22-outer ring, 221-second bayonet, 23-connecting screw, 24-heat dissipation hole, 3-extension support plate, 4-fixing ring, 41-guide slot, 5-spring damper, 51-buffer spring, 52-connecting rod, 6-first wire clamp bracket, 7-second wire clamp bracket, 8-gravity block, 9-foam cushion. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0023] Example
[0024] The following is further described in conjunction with specific embodiments. Figure 1-Figure 3As shown, this embodiment is a wind turbine tower cable wear prevention device, including a saddle bridge 1 and a main protective tube ring 2, both sides of the saddle bridge 1 are provided with an extension support plate 3, the front end of the extension support plate 3 is connected to a fixing ring 4, and the surface of the fixing ring 4 is provided with a guide slot 41; the main protective tube ring 2 is arranged in the fixing ring 4, and the outside of the main protective tube ring 2 is provided with a spring damper 5, the spring damper 5 includes a connecting rod 52 and a buffer spring 51, the buffer spring 51 is sleeved on the connecting rod 52 and clamped between the fixing ring 4 and the main protective tube ring 2, one end of the connecting rod 52 passes through the guide slot 41, so that the rotation of the main protective tube ring 2 will drive the connecting rod 52 to rotate along the guide slot 41 Movement; Specifically, the utility model arranges extended support plates 3 on both sides of the saddle bridge 1 to cooperate with the fixing ring 4, and the main protective tube ring 2 is arranged in the fixing ring 4. The cable is fixed as a whole through the main protective tube ring 2. When the nose is adjusted in yaw, the cable as a whole swings downward, and the main protective tube ring 2 also swings synchronously to squeeze the spring shock absorber 5 to reduce the swing. The setting direction of the spring shock absorber 5 is consistent with the width direction of the saddle bridge 1. At the same time, the main protective tube ring 2 can also rotate relative to the fixing ring 4, which greatly reduces the swing amplitude and size of the lower ends of multiple cables, avoids the wear and tear caused by the contact friction between the cable and the saddle bridge 1, and improves the safety of cable use.
[0025] Reference Figure 2 As shown, the main protective tube ring 2 in this embodiment includes an inner ring 21 and an outer ring 22. The outer surface of the inner ring 21 is provided with a plurality of first bayonet holes 211, and the outer ring 22 is provided with a second bayonet hole 221 corresponding to the first bayonet hole 211, and the cable is clamped together by the first bayonet hole 211 and the second bayonet hole 221; the outer ring 22 adopts a split splicing structure, and a plurality of connecting screws 23 are connected between the outer ring 22 and the inner ring 21; specifically, when installing the main protective tube ring 2, the cables are first placed into the first bayonet holes 211 one by one, and the outer ring 22 composed of the two split structures is spliced to the outside of the inner ring 21, and the second bayonet hole 221 is also correspondingly clamped into the cable, and then the connecting screws 23 are tightened to form an integrated structure between the inner ring 21 and the outer ring 22, and then the bolts of the outer ring 22 are tightened to complete the fixation.
[0026] Reference Figure 1 As shown, in order to improve the heat dissipation effect of the cable, a plurality of heat dissipation holes 24 penetrating the inside and outside are provided on the surface of the outer ring 22, and air can enter through the heat dissipation holes 24 and contact the cable surface, thereby increasing the exposed area of the cable.
[0027] like Figure 3 As shown, in order to achieve a good fixing effect and prevent the cable from loosening after being clamped, the first bayonet 211 and the second bayonet 221 may be arc-shaped or square grooves.
[0028] like Figure 1As shown, a first wire clamp bracket 6 and a second wire clamp bracket 7 are provided on the upper surface of the saddle bridge 1, the first wire clamp bracket 6 is provided at the front end of the saddle bridge 1, and the second wire clamp bracket 7 is provided at the rear end of the saddle bridge 1; specifically, the first wire clamp bracket 6 and the second wire clamp bracket 7 lift the cable as a whole to achieve two-point support, thereby avoiding excessive contact between the cable and the saddle bridge 1, so that the cable is not easily worn.
[0029] like Figure 1 As shown, this embodiment also includes a gravity block 8 clamped on the cable, and the gravity block 8 is arranged between the second wire clamp bracket 7 and the main protective tube ring 2; specifically, the gravity block 8 is arranged at the bend of the cable, so that when the yaw motor is running, the swing below the cable is smaller.
[0030] More preferably, a foam pad 9 is provided on the surface of the saddle bridge 1 on one side of the saddle bridge 1 close to the cable, so that when the cable may swing and contact the saddle bridge 1, the cable contacts the foam pad 9 without causing damage to the cable surface.
[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A wind turbine tower cable wear protection device, comprising a saddle bridge (1) and a main protective pipe ring (2), characterized in that: Both sides of the saddle bridge (1) are provided with extension support plates (3), the front end of the extension support plates (3) is connected to a fixing ring (4), and the surface of the fixing ring (4) is provided with a guide notch (41); The main pipe protection ring (2) is arranged in the fixing ring (4). A spring damper (5) is arranged outside the main pipe protection ring (2). The spring damper (5) comprises a connecting rod (52) and a buffer spring (51). The buffer spring (51) is sleeved on the connecting rod (52) and clamped between the fixing ring (4) and the main pipe protection ring (2). One end of the connecting rod (52) passes through the guide slot (41), so that the rotation of the main pipe protection ring (2) drives the connecting rod (52) to rotate along the guide slot (41).
2. The wind turbine tower cable anti-wear device according to claim 1 is characterized in that: The main protective tube ring (2) comprises an inner ring (21) and an outer ring (22); the outer surface of the inner ring (21) is provided with a plurality of first bayonet holes (211); the outer ring (22) is provided with second bayonet holes (221) corresponding to the first bayonet holes (211); the first bayonet holes (211) and the second bayonet holes (221) are used to clamp the cable.
3. The wind turbine tower cable anti-wear device according to claim 2 is characterized in that: The outer ring (22) adopts a split splicing structure, and a plurality of connecting screws (23) are connected between the outer ring (22) and the inner ring (21).
4. The wind turbine tower cable anti-wear device according to claim 2 is characterized in that: The surface of the outer ring (22) is provided with a plurality of heat dissipation holes (24) penetrating inside and outside.
5. The wind turbine tower cable anti-wear device according to claim 2 is characterized in that: The first bayonet (211) and the second bayonet (221) are arc-shaped or square grooves.
6. The wind turbine tower cable anti-wear device according to claim 1, characterized in that: The upper surface of the saddle bridge (1) is provided with a first wire clamp bracket (6) and a second wire clamp bracket (7), wherein the first wire clamp bracket (6) is arranged at the front end of the saddle bridge (1), and the second wire clamp bracket (7) is arranged at the rear end of the saddle bridge (1).
7. The wind turbine tower cable anti-wear device according to claim 6, characterized in that: It also includes a gravity block (8) clamped on the cable, and the gravity block (8) is arranged between the second wire clamp bracket (7) and the main protective tube ring (2).
8. The wind turbine tower cable anti-wear device according to claim 1, characterized in that: The surface of the saddle bridge (1) is provided with a foam cushion (9).