A wind farm power transmission cable tension adjustment device

Abstract

The utility model provides a kind of wind farm transmission cable tensioning adjusting device, belong to distribution network auxiliary equipment technical field. Including tensioning seat, the lower surface of the tensioning seat is fixed with tensioning plate by fixed bolt, the side of the tensioning plate is equipped with fixed hook and winding, tensioning, connecting hook. The utility model is rotated by setting tensioning motor, makes ratchet wheel rotate on tensioning seat, makes winding wheel rotate on tensioning seat, ratchet pawl is engaged with ratchet wheel, tensioning rope moves, transmission cable is tensioned, rotates mounting bolt, and protection plate is fixed on tensioning seat, protection magnet magnetically attracts connection magnet, so that placing plate is fixed on protection plate, so that placing plate and protection plate are fixed around winding wheel, reduce the tensioning rope on winding wheel to run out, after transmission cable is tensioned, telescopic screw rod starts rotating from the side close to tensioning hook, so that adjusting plate can move on fixed plate, when temperature decreases from summer to winter, the degree of transmission cable tensioning is adjusted, and transmission cable breakage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of power distribution network auxiliary equipment technology, and in particular to a tensioning and adjusting device for transmission cables in wind farms. Background Technology

[0002] A power transmission cable tensioning device is a mechanical or mechatronic device used to maintain a constant tension in the conductors of overhead power transmission lines. It typically consists of a tension monitoring module, a drive actuator, and a control system. Its function is to dynamically or statically adjust the axial tension of the cable to compensate for the length expansion and contraction caused by temperature changes, wind loads, icing, or mechanical creep, ensuring that the sag value of the line is always within a safe range. This avoids excessive conductor sway or insufficient distance to the ground due to excessive looseness, or mechanical damage or even breakage of the cable due to excessive tightness. It is widely used in the tension sections of high-voltage transmission lines, long-span installations, and other scenarios requiring precise tension control, and is a key device for ensuring the safe and stable operation of the power grid.

[0003] Existing cable tensioning devices typically leave the cable directly on after tensioning. However, prolonged exposure to wind and rain can damage the pawls, causing the cable to loosen again. During cable tensioning, the tension rope on the winding reel may slip out or become tangled in the device, causing unnecessary trouble for workers. In summer and winter, as temperatures drop, the cable may become too tight, increasing the risk of damage. Workers may then need to adjust the cable again, which is time-consuming and labor-intensive. Therefore, this application provides a wind farm transmission cable tensioning device to meet these needs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a wind farm transmission cable tensioning adjustment device to solve the problems of existing tensioning cable tensioning devices, such as the ability to remove the tensioning seat after tensioning the cable, reducing the need for tension rope winding, and adjusting the cable tension to reduce cable breakage.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A tensioning adjustment device for transmission cables in a wind farm includes a tensioning seat. A tensioning plate is fixed to the lower surface of the tensioning seat by fixing bolts. A fixing hook is provided on one side of the tensioning plate. A winding wheel is rotatably connected inside the tensioning seat. A tensioning rope is provided on the surface of the winding wheel. One end of the tensioning rope is provided with a connecting hook. A pawl is rotatably connected to one side of the tensioning seat. A tensioning motor is inserted into one side of the tensioning seat. A ratchet is inserted into one end of the tensioning motor. A protective component is inserted into the upper surface of the tensioning seat. An adjusting plate is inserted into one side of the tensioning plate. A fixing plate is slidably connected to the surface of the adjusting plate. A telescopic screw is inserted into the upper surface of the fixing plate. A tensioning hook is provided at one end of the fixing plate.

[0007] Optionally, the protection assembly includes a protection plate, mounting bolts, a protection magnet, a connecting magnet, and a placement plate. The upper surface of the protection plate is threaded with mounting bolts, the lower surface of the protection plate is inserted with a protection magnet, the lower surface of the protection magnet is provided with a connecting magnet, and the lower surface of the connecting magnet is sleeved with a placement plate.

[0008] Optionally, the upper surface of the protective plate is provided with a mounting threaded hole, the internal thread of which is used to insert a mounting bolt, and the surface of the placement plate is provided with a tensioning hole.

[0009] Optionally, an adjusting groove is provided on one side of the fixed plate, and an adjusting plate is slidably connected inside the adjusting groove.

[0010] Optionally, the upper surface of the adjusting plate is provided with an adjusting hole, which is adapted to the telescopic screw.

[0011] Optionally, the upper surface of the fixing plate is provided with a fixing threaded hole, and a telescopic screw passes through the internal thread of the fixing threaded hole; the lower surface of the fixing plate is provided with a tensioning threaded hole, and a telescopic screw passes through the internal thread of the tensioning threaded hole.

[0012] Optionally, a tension bearing is inserted into one side of the tensioning seat, a connecting rod is inserted into the inside of the tension bearing, a ratchet is inserted into one end of the connecting rod, and a winding wheel is inserted into the other end of the connecting rod.

[0013] Optionally, a through hole is provided on one side of the tensioning seat, and a tensioning rope is provided inside the through hole.

[0014] Optionally, a spring is provided on one side of the pawl, and the pawl is adapted to the ratchet.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above scheme, by setting a tensioning motor to rotate, the ratchet rotates on the tensioning seat, and the winding wheel rotates on the tensioning seat. The pawl and ratchet mesh with each other, causing the tensioning rope to move and tensioning the power transmission cable, saving the physical strength of the workers. Rotating the mounting bolts fixes the protective plate on the tensioning seat. The protective magnet attracts the connecting magnet, fixing the placement plate on the protective plate. This fixes the placement plate and protective plate around the winding wheel, reducing the tensioning rope from slipping off the winding wheel and improving work efficiency. The adjusting plate moves on the fixed plate, and the telescopic screw rotates. The adjusting plate is fixed on the fixed plate. After the power transmission cable is tensioned, the telescopic screw rotates from the side closest to the tensioning hook. By rotating the four telescopic screws in sequence, the adjusting plate can move on the fixed plate. During the summer to winter when the temperature drops, due to the thermal expansion and contraction of the power transmission cable, the tension of the power transmission cable can be quickly adjusted, thereby reducing the risk of cable breakage. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0018] Figure 1 A three-dimensional structural diagram of a tensioning and adjusting device for power transmission cables in a wind farm.

[0019] Figure 2 This is a schematic diagram of the fixed plate structure;

[0020] Figure 3 This is a schematic diagram of the tensioner structure;

[0021] Figure 4 This is a schematic diagram of the tensioning motor structure;

[0022] Figure 5 This is a schematic diagram of the adjustment plate structure;

[0023] Figure 6 This is a schematic diagram of the protective plate structure.

[0024] Figure label:

[0025] 1. Tensioning seat; 2. Fixing bolt; 3. Tensioning plate; 4. Fixing hook; 5. Winding reel; 6. Tensioning rope; 7. Connecting hook; 8. Pawl; 9. Tensioning motor; 10. Ratchet; 11. Protective assembly; 111. Protective plate; 112. Mounting bolt; 113. Protective magnet; 114. Connecting magnet; 115. Placement plate; 12. Adjusting plate; 13. Fixing plate; 14. Telescopic screw; 15. Tensioning hook.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The tensioning and adjusting device for wind farm transmission cables provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figures 1 to 6 As shown, an embodiment of this utility model provides a tensioning adjustment device for wind farm transmission cables, including a tensioning seat 1. A tensioning plate 3 is fixed to the lower surface of the tensioning seat 1 by a fixing bolt 2. A fixing hook 4 is provided on one side of the tensioning plate 3. A winding wheel 5 is rotatably connected inside the tensioning seat 1. A tensioning rope 6 is provided on the surface of the winding wheel 5. A through hole is opened on one side of the tensioning seat 1. The tensioning rope 6 is provided inside the through hole. A connecting hook 7 is provided at one end of the tensioning rope 6. A pawl 8 is rotatably connected to one side of the tensioning seat 1. A tensioning cable is inserted into one side of the tensioning seat 1. A tensioning motor 9 is installed, with a ratchet 10 inserted at one end. A tensioning bearing is installed on one side of the tensioning seat 1, and a connecting rod is inserted inside the tensioning bearing. A ratchet 10 is inserted at one end of the connecting rod, and a spring is provided on one side of the pawl 8. The pawl 8 and the ratchet 10 are mutually adapted. A winding wheel 5 is inserted at the other end of the connecting rod. A protective assembly 11 is installed on the upper surface of the tensioning seat 1. The protective assembly 11 includes a protective plate 111, mounting bolts 112, a protective magnet 113, a connecting magnet 114, and a placement plate 115. The protective plate 111... The upper surface of the protective plate 111 is threaded with a mounting bolt 112. A protective magnet 113 is inserted into the lower surface of the protective plate 111. A connecting magnet 114 is provided on the lower surface of the protective magnet 113. A placement plate 115 is sleeved on the lower surface of the connecting magnet 114. The upper surface of the protective plate 111 has a threaded mounting hole, through which the mounting bolt 112 passes. A tensioning hole is provided on the surface of the placement plate 115. An adjusting plate 12 is inserted into one side of the tensioning plate 3. An adjusting groove is provided on one side of the fixing plate 13. An adjusting plate 12 is internally slidably connected, and a fixed plate 13 is slidably connected to the surface of the adjusting plate 12. A telescopic screw 14 is inserted into the upper surface of the fixed plate 13. An adjusting hole is provided on the upper surface of the adjusting plate 12, and the adjusting hole is compatible with the telescopic screw 14. A fixed threaded hole is provided on the upper surface of the fixed plate 13, and the telescopic screw 14 passes through the internal thread of the fixed threaded hole. A tensioning threaded hole is provided on the lower surface of the fixed plate 13, and the telescopic screw 14 passes through the internal thread of the tensioning threaded hole. A tensioning hook 15 is provided at one end of the fixed plate 13.

[0033] The rotation of the tensioning motor 9 causes the ratchet 10 to rotate on the tensioning seat 1, which in turn causes the winding wheel 5 to rotate on the tensioning seat 1. The pawl 8 engages with the ratchet 10, allowing the tensioning rope 6 to move and quickly tension the power transmission cable, saving the worker's effort. By rotating the mounting bolt 112, the protective plate 111 can be fixed to the tensioning seat 1. The protective magnet 113 magnetically attracts the connecting magnet 114, fixing the placement plate 115 to the protective plate 111. This secures the placement plate 115 and the protective plate 111 around the winding wheel 5, reducing winding speed. The tension rope 6 on the reel 5 extends outwards, allowing the equipment to operate more efficiently and improving work efficiency. The adjusting plate 12 moves on the fixed plate 13 and rotates via the telescopic screw 14. The adjusting plate 12 can be fixed on the fixed plate 13. After the power transmission cable is tensioned, the telescopic screw 14 rotates from the side closest to the tension hook 15. By rotating the four telescopic screws 14 in sequence, the adjusting plate 12 can move on the fixed plate 13. This allows for rapid adjustment of the tension of the power transmission cable due to thermal expansion and contraction during the transition from summer to winter, thereby reducing the risk of cable breakage.

[0034] The working principle of the technical solution provided by this utility model is as follows: During use, the tensioning seat 1 is fixed to the tensioning plate 3 by the fixing bolt 2, fixed to the transmission pole by the fixing hook 4, and fixed to the wire clamp by the connecting hook 7. The wire clamp is installed on the cable. The tensioning motor 9 rotates, causing the ratchet 10 to rotate on the tensioning seat 1, which in turn causes the winding wheel 5 to rotate on the tensioning seat 1. The pawl 8 meshes with the ratchet 10, thereby moving the tensioning rope 6 and quickly tensioning the transmission cable, saving the physical strength of the workers. By rotating the mounting bolt 112, the protective plate 111 can be fixed to the tensioning seat 1. The protective magnet 113 magnetically attracts the connecting magnet 114, thereby fixing the placement plate 115 to the protective plate 111, thus allowing the placement plate 115 to be fixed to the protective plate 111. The mounting plate 115 and the protective plate 111 are fixed around the winding wheel 5, which can reduce the tension rope 6 on the winding wheel 5 from running out, making the equipment work better and improving work efficiency. After the cable is tensioned, the wire clamp is connected to the tension hook 15, and then the wire clamp is disengaged from the connecting hook 7, thereby tensioning the cable. Then, the fixing bolt 2 is turned to remove the tensioning seat 1. When the temperature drops from summer to winter, the power transmission cable will become tighter due to the temperature drop. The telescopic screw 14 is rotated from the side closest to the tension hook 15. By rotating the four telescopic screws 14 in sequence, the adjusting plate 12 can be moved on the fixing plate 13. Thus, when the temperature drops from summer to winter, due to the thermal expansion and contraction of the power transmission cable, the tension of the power transmission cable can be quickly adjusted, thereby reducing the breakage of the power transmission cable.

[0035] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A tensioning and adjusting device for transmission cables in a wind farm, characterized in that, The device includes a tensioning seat, a tensioning plate fixed to its lower surface by fixing bolts, a fixing hook on one side of the tensioning plate, a winding wheel rotatably connected inside the tensioning seat, a tensioning rope on the surface of the winding wheel, a connecting hook at one end of the tensioning rope, a ratchet rotatably connected to one side of the tensioning seat, a tensioning motor inserted into one side of the tensioning seat, a ratchet inserted into one end of the tensioning motor, a protective component inserted into the upper surface of the tensioning seat, an adjusting plate inserted into one side of the tensioning plate, a fixing plate slidably connected to the surface of the adjusting plate, a telescopic screw inserted into the upper surface of the fixing plate, and a tensioning hook at one end of the fixing plate.

2. The wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, The protective assembly includes a protective plate, mounting bolts, a protective magnet, a connecting magnet, and a placement plate. The upper surface of the protective plate is threaded with mounting bolts, the lower surface of the protective plate is inserted with a protective magnet, the lower surface of the protective magnet is provided with a connecting magnet, and the lower surface of the connecting magnet is fitted with a placement plate.

3. The wind farm transmission cable tensioning adjustment device according to claim 2, characterized in that, The upper surface of the protective plate is provided with a mounting threaded hole, and a mounting bolt passes through the internal thread of the mounting threaded hole. The surface of the placement plate is provided with a tensioning hole.

4. The wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, An adjusting groove is provided on one side of the fixed plate, and an adjusting plate is slidably connected inside the adjusting groove.

5. The wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, The upper surface of the adjustment plate is provided with an adjustment hole, which is adapted to the telescopic screw.

6. The wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, The upper surface of the fixing plate is provided with a fixing threaded hole, and a telescopic screw passes through the internal thread of the fixing threaded hole. The lower surface of the fixing plate is provided with a tensioning threaded hole, and a telescopic screw passes through the internal thread of the tensioning threaded hole.

7. The wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, A tensioning bearing is inserted into one side of the tensioning seat, and a connecting rod is inserted into the inside of the tensioning bearing. A ratchet is inserted into one end of the connecting rod, and a winding wheel is inserted into the other end of the connecting rod.

8. A wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, A through hole is provided on one side of the tensioning seat, and a tensioning rope is provided inside the through hole.

9. A wind farm transmission cable tensioning adjustment device according to claim 1, characterized in that, A spring is provided on one side of the pawl, and the pawl is adapted to the ratchet.

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