Dynamic balance adjusting device for large-span power transmission line

Abstract

The utility model discloses a dynamic balance adjusting device for a large-span power transmission line, and relates to the technical field of adjusting devices, the dynamic balance adjusting device further comprises a fixing frame, rails are fixedly connected to the two sides of the top of the fixing frame, a vehicle body is arranged at the tops of the rails, first springs are fixedly connected to the two sides of the inner wall of the fixing frame, and one ends of the first springs are fixedly connected with the vehicle body; the bottom of the vehicle body is connected with a hook through a suspension mechanism, the bottom of the hook is provided with an insulator, the bottom end of the insulator is fixedly connected with a fixing wire clamp used for fixing a power transmission line, the suspension mechanism comprises a buffer part and a U-shaped hanging ring, the buffer part is installed at the bottom of the vehicle body, and the U-shaped hanging ring is installed at the bottom of the buffer part. The suspension mechanism is arranged, so that when the surfaces of the insulator and the power transmission line are seriously iced, the U-shaped hanging ring and the hook can be buffered, damage to the U-shaped hanging ring and the hook is reduced, and the service life of the U-shaped hanging ring and the hook is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of adjustment devices, and more specifically, to a dynamic balance adjustment device for a large-span transmission line. Background Art

[0002] When overhead transmission lines are erected, it's generally required to maintain zero unbalanced tension in the insulator strings on straight towers and the conductors on both sides of the tower suspension clamps. However, when meteorological conditions change, due to differences in span, height difference, and load within the tension section, unbalanced tension often develops on the conductors on both sides of the tower suspension clamps. This is especially true when uneven icing and deicing occur within the section. When unbalanced tension reaches a certain limit, it can cause transmission line disconnection or even tower overturning. Damage to the transmission line can not only cause significant engineering losses, but can also lead to large-scale power outages due to localized damage to the power grid, severely impacting normal social life and causing significant economic losses.

[0003] The document with prior art publication number CN109638751U provides an automatic adjustment device for the unbalanced tension of the transmission line conductor. When the transmission line generates unbalanced tension in the ice-covered state, the slider can move along the track due to the load. For example, if the ice area on the left side of the line is serious, the slider moves to the left. The rubber at both ends of the track is used to reduce the impact force caused by the movement of the slider on the device. The movement of the slider drives the movement of the insulator. In addition, the insulator itself can also be offset, thereby releasing the unbalanced tension by changing the distance between the lines, realizing automatic adjustment of the unbalanced tension of the conductor, thereby ensuring the safe operation of the transmission line.

[0004] Although this device has many beneficial effects, the following problems still exist: when the insulator and the transmission line surface are severely covered with ice, it is difficult to buffer the hook and the U-shaped hanging ring, which can easily cause damage to the hook and the U-shaped hanging ring, shortening the service life of the hook and the U-shaped hanging ring. In view of this, we propose a dynamic balance adjustment device for transmission lines with large spans. Utility Model Content

[0005] The embodiments of the present application provide a dynamic balance adjustment device for transmission lines with large spans, thereby solving the technical problem in the prior art that when the insulator and the transmission line surface are severely covered with ice, it is difficult to buffer the hook and the U-shaped hanging ring, which easily causes damage to the hook and the U-shaped hanging ring, shortening the service life of the hook and the U-shaped hanging ring. The embodiment of the present application achieves the technical effect of being able to buffer the U-shaped hanging ring and the hook when the insulator and the transmission line surface are severely covered with ice, reducing damage to the U-shaped hanging ring and the hook, and extending the service life of the U-shaped hanging ring and the hook.

[0006] The embodiment of the present application provides a dynamic balance adjustment device for a large-span power transmission line, comprising: a fixing frame;

[0007] Both sides of the top of the fixing frame are fixedly connected to rails, a vehicle body is provided on the top of the rails, both sides of the inner wall of the fixing frame are fixedly connected to first springs, one end of the first spring is fixedly connected to the vehicle body, a through slot is formed through the bottom of the fixing frame, a hook is connected to the bottom of the vehicle body through a suspension mechanism, an insulator is installed at the bottom of the hook, and a fixed wire clamp for fixing the transmission line is fixedly connected to the bottom of the insulator, thereby facilitating the release of unbalanced tension in the transmission line, thereby ensuring the safe operation of the transmission line;

[0008] The suspension mechanism includes a buffer portion and a U-shaped hanging ring. The buffer portion is installed at the bottom of the vehicle body, and the U-shaped hanging ring is installed at the bottom of the buffer portion. The hook is connected to the U-shaped hanging ring, which facilitates buffering of the hook and the U-shaped hanging ring.

[0009] By adopting the above technical solution and setting up a suspension mechanism, when the insulator and the surface of the transmission line are severely covered with ice, the U-shaped hanging ring and the hook can be buffered, thereby reducing damage to the U-shaped hanging ring and the hook and extending the service life of the U-shaped hanging ring and the hook.

[0010] Optionally, the buffer portion includes a mounting tube, which is located at the bottom of the vehicle body, a sliding rod is slidably connected through the bottom of the mounting tube, a damping block is fixedly connected to the top of the sliding rod, and the damping block is slidably connected to the inner side of the mounting tube, and a second spring is fixedly connected to the bottom of the damping block, and the bottom end of the second spring is fixedly connected to the bottom of the inner wall of the mounting tube, the bottom end of the sliding rod is fixedly connected to the mounting plate, and the U-shaped hanging ring is fixedly connected to the bottom of the mounting plate.

[0011] By adopting the above technical solution and setting a slide rod, a damping block and a second spring, when the insulator and the transmission line are severely covered with ice, the U-shaped hanging ring will be driven to move downward through the hook, and the downward movement of the U-shaped hanging ring will drive the mounting plate and the slide rod to move downward, and the downward movement of the slide rod will drive the damping block to move downward in the mounting tube and squeeze the second spring, thereby playing a role in buffering the U-shaped hanging ring and the hook.

[0012] Optionally, a plurality of elastic rubber rods are fixedly connected to the top of the mounting plate, and the top ends of the elastic rubber rods are fixedly connected to the bottom of the mounting tube.

[0013] By adopting the above technical solution, by arranging an elastic rubber rod, the elastic rubber rod will be pulled when the mounting plate moves downward, causing the elastic rubber rod to deform, thereby further improving the buffering effect on the U-shaped hanging ring and the hook.

[0014] Optionally, fixing plates are fixedly connected to both sides of the mounting tube, and the fixing plates are connected to the vehicle body via threaded rods.

[0015] By adopting the above technical solution, by setting up a fixing plate and a threaded rod, when the staff unscrews the threaded rod, the fixing plate can be separated from the vehicle body, thereby facilitating the staff to remove the installation cylinder, and then facilitating the staff to quickly disassemble and assemble the buffer part.

[0016] Optionally, the fixed wire clamp includes a mounting frame, a screw and a rubber pad, the mounting frame is fixedly connected to the bottom of the insulator, a threaded groove is opened through the bottom of the mounting frame, the screw is threadedly connected in the threaded groove, and the rubber pad is fixedly connected to the top of the screw.

[0017] By adopting the above technical solution and setting a fixed wire clamp, when the transmission line needs to be fixed, the staff can place the line in the installation frame and screw the threaded rod to drive the rubber pad to move upward to fix the transmission line.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0019] 1. By setting up a suspension mechanism, when the insulator and the transmission line surface are severely covered with ice, the U-shaped hanging ring and the hook can be buffered, thereby reducing damage to the U-shaped hanging ring and the hook and extending the service life of the U-shaped hanging ring and the hook.

[0020] 2. By setting the fixing plate and the threaded rod, when the staff unscrews the threaded rod, the fixing plate can be separated from the vehicle body, thereby facilitating the staff to remove the installation cylinder and then facilitate the staff to quickly disassemble and assemble the buffer part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram from a first perspective of the overall structure of a dynamic balance adjustment device for a large-span power transmission line according to an embodiment of the present application;

[0022] Figure 2 This is a schematic diagram from a first perspective of the overall structure of a dynamic balance adjustment device for a large-span power transmission line according to an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the connection structure between a slide bar and a mounting plate of a dynamic balancing adjustment device for a large-span power transmission line according to an embodiment of the present application;

[0024] Explanation of the numbers in the figure: 1. Fixed frame; 2. Track; 3. Suspension mechanism; 31. Mounting cylinder; 32. Damping block; 33. Sliding rod; 34. Mounting plate; 35. U-shaped hanging ring; 36. Second spring; 37. Elastic rubber rod; 38. Fixed plate; 39. Threaded rod; 4. Car body; 5. First spring; 6. Hook; 7. Insulator; 8. Fixed wire clamp. DETAILED DESCRIPTION

[0025] The present application is further described in detail below with reference to the accompanying drawings.

[0026] Reference Figure 1 and Figure 2 The embodiment of the present application discloses a dynamic balancing adjustment device for a transmission line with a large span. The dynamic balancing adjustment device for a transmission line with a large span comprises: a fixing frame 1;

[0027] Tracks 2 are fixedly connected to both sides of the top of the fixing frame 1. A vehicle body 4 is provided on the top of the track 2. First springs 5 are fixedly connected to both sides of the inner wall of the fixing frame 1. One end of the first spring 5 is fixedly connected to the vehicle body 4. A through slot is formed through the bottom of the fixing frame 1. A hook 6 is connected to the bottom of the vehicle body 4 through a suspension mechanism 3. An insulator 7 is installed at the bottom of the hook 6. A fixed wire clamp 8 for fixing the transmission line is fixedly connected to the bottom end of the insulator 7, thereby facilitating the release of unbalanced tension in the transmission line and ensuring the safe operation of the transmission line.

[0028] The suspension mechanism 3 includes a buffer portion and a U-shaped hanging ring 35. The buffer portion is installed at the bottom of the vehicle body 4, and the U-shaped hanging ring 35 is installed at the bottom of the buffer portion. The hook 6 is connected to the U-shaped hanging ring 35, which facilitates buffering of the hook 6 and the U-shaped hanging ring 35.

[0029] Reference Figure 1 and Figure 3 The buffer portion includes a mounting tube 31, which is located at the bottom of the vehicle body 4. A sliding rod 33 is slidably connected to the bottom of the mounting tube 31. A damping block 32 is fixedly connected to the top of the sliding rod 33, and the damping block 32 is slidably connected to the inner side of the mounting tube 31. A second spring 36 is fixedly connected to the bottom of the damping block 32. The bottom end of the second spring 36 is fixedly connected to the bottom of the inner wall of the mounting tube 31. The bottom end of the sliding rod 33 is fixedly connected to the mounting plate 34, and the U-shaped hanging ring 35 is fixedly connected to the bottom of the mounting plate 34, so as to facilitate buffering at the U-shaped hanging ring 35 and extend the service life of the U-shaped hanging ring 35.

[0030] Reference Figure 1 and Figure 3 A plurality of elastic rubber rods 37 are fixedly connected to the top of the mounting plate 34 , and the top of the elastic rubber rod 37 is fixedly connected to the bottom of the mounting tube 31 , thereby further enhancing the buffering effect of the U-shaped hanging ring 35 .

[0031] Reference Figure 1 and Figure 3 The fixed wire clamp 8 includes a mounting frame, a screw and a rubber pad. The mounting frame is fixedly connected to the bottom of the insulator 7. A threaded groove is opened through the bottom of the mounting frame. The screw is threadedly connected to the threaded groove. The rubber pad is fixedly connected to the top of the screw, which is convenient for fixing the transmission line.

[0032] Reference Figure 1 and Figure 3 The cross-section of the installation frame is U-shaped, which makes it easy for workers to install the transmission line in the installation frame and also makes it easy for workers to take the transmission line out of the installation frame.

[0033] Reference Figure 1 and Figure 2 Two butadiene rubbers are fixedly connected to both sides of the inner wall of the fixing frame 1 to reduce the impact force of the movement of the vehicle body 4 on the fixing frame 1.

[0034] Reference Figure 2 and Figure 3 , both sides of the installation cylinder 31 are fixedly connected with fixing plates 38, and the fixing plates 38 are connected to the vehicle body 4 through threaded rods 39, which makes it convenient for the staff to disassemble and assemble the installation cylinder 31.

[0035] The implementation principle of a dynamic balancing adjustment device for a large-span power transmission line according to an embodiment of the present application is as follows: when the transmission line and the insulator 7 are severely covered with ice, the U-shaped hanging ring 35 will be driven to move downward through the hook 6. The downward movement of the U-shaped hanging ring 35 can drive the mounting plate 34 to move downward. The downward movement of the mounting plate 34 will cause the elastic rubber rod 37 to be pulled and drive the slide bar 33 to move downward. The downward movement of the slide bar 33 will drive the damping block 32 to move downward to squeeze the second spring 36, thereby facilitating the buffering of the hook 6 and the U-shaped hanging ring 35 when the transmission line and the insulator 7 are severely covered with ice, reducing damage to the hook 6 and the U-shaped hanging ring 35 and extending the service life of the hook 6 and the U-shaped hanging ring 35. At the same time, when uneven ice coating and de-icing occur on the transmission line, the car body 4 moves to release the unbalanced tension. When the unbalanced tension disappears, the car body 4 automatically returns to the center position of the track 2 under the action of the first spring 5, thereby releasing the unbalanced tension and automatically adjusting the unbalanced tension of the conductor, thereby ensuring the safe operation of the transmission line.

[0036] An embodiment of the present application provides a dynamic balance adjustment device for a transmission line with a large span. By setting a suspension mechanism 3, when the insulator 7 and the surface of the transmission line are severely covered with ice, the U-shaped hanging ring 35 and the hook 6 can be buffered, thereby reducing damage to the U-shaped hanging ring 35 and the hook 6 and extending the service life of the U-shaped hanging ring 35 and the hook 6.

Claims

1. A dynamic balancing adjustment device for a large-span transmission line, comprising a fixing frame, characterized in that: Include: Both sides of the top of the fixing frame are fixedly connected to rails, a vehicle body is provided on the top of the rails, both sides of the inner wall of the fixing frame are fixedly connected to first springs, one end of the first spring is fixedly connected to the vehicle body, a through slot is formed through the bottom of the fixing frame, a hook is connected to the bottom of the vehicle body through a suspension mechanism, an insulator is installed at the bottom of the hook, and a fixed wire clamp for fixing the transmission line is fixedly connected to the bottom of the insulator, thereby facilitating the release of unbalanced tension in the transmission line, thereby ensuring the safe operation of the transmission line; The suspension mechanism includes a buffer portion and a U-shaped hanging ring. The buffer portion is installed at the bottom of the vehicle body, and the U-shaped hanging ring is installed at the bottom of the buffer portion. The hook is connected to the U-shaped hanging ring, which facilitates buffering of the hook and the U-shaped hanging ring.

2. The dynamic balance adjustment device for a large-span power transmission line according to claim 1, characterized in that: The buffer part includes a mounting tube, which is located at the bottom of the vehicle body, a sliding rod is slidably connected to the bottom of the mounting tube, a damping block is fixedly connected to the top of the sliding rod, and the damping block is slidably connected to the inner side of the mounting tube, and the bottom of the damping block is fixedly connected to a second spring, and the bottom end of the second spring is fixedly connected to the bottom of the inner wall of the mounting tube, the bottom end of the sliding rod is fixedly connected to a mounting plate, and the U-shaped hanging ring is fixedly connected to the bottom of the mounting plate.

3. The dynamic balance adjustment device for a large-span power transmission line according to claim 2, characterized in that: A plurality of elastic rubber rods are fixedly connected to the top of the mounting plate, and the top ends of the elastic rubber rods are fixedly connected to the bottom of the mounting tube.

4. The dynamic balance adjustment device for a large-span power transmission line according to claim 3, characterized in that: Both sides of the installation cylinder are fixedly connected with fixing plates, and the fixing plates are connected to the vehicle body through threaded rods.

5. The dynamic balance adjustment device for a large-span power transmission line according to claim 4, characterized in that: The fixed wire clamp includes a mounting frame, a screw and a rubber pad. The mounting frame is fixedly connected to the bottom of the insulator. A threaded groove is opened through the bottom of the mounting frame. The screw is threaded in the threaded groove. The rubber pad is fixedly connected to the top of the screw.

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