A high-voltage transmission phase disk

Abstract

The present invention belongs to the technical field of power transmission, and particularly relates to a high-voltage transmission phase disc. It includes a support ring located in the middle and an adjustment component arranged on the support ring; a plurality of screw holes are evenly arranged on the support ring, and the screw holes are perpendicular to the ring surface of the ring and extend along the radial direction; the adjustment component includes a screw rod and a fixed seat; both ends of the screw rod are respectively provided with threads with opposite helix directions, and one end thereof is also provided with a top block. During specific use, the adjustment component is installed in each screw hole on the support ring. When fixing the power transmission cable, the power transmission cable is positioned in the positioning groove by using the fixed seat and the snap ring. After all the power transmission cables are fixed in the positioning groove and the phase device is adjusted in position, the screw rod is rotated to make the top block clamp the power transmission cable between the two arms of the seat body, and the power transmission cable is locked by the acting force between the top block, the positioning groove and the power transmission cable, thereby effectively preventing the relative movement between the power transmission cable and the phase device.

Description

Technical Field

[0001] The present invention belongs to the technical field of power transmission, and particularly relates to a high-voltage transmission phase disk. Background Art

[0002] With the development and progress of power transmission technology, there are various power transmission methods. Compared with traditional medium and low-voltage power transmission structures, high-voltage power transmission has higher transmission efficiency, can greatly reduce the cost of long-distance power transmission. Compared with general medium and low-voltage power grids, the number of supporting structures such as electric poles required for high-voltage power transmission is relatively smaller, the height of the electric towers is higher, and the distance between the electric towers is larger.

[0003] Due to the increased distance, the power transmission cables between the electric towers shake more violently, and the tension on both ends of the cables is also greater. Therefore, a large number of power transmission interval devices are provided on the power transmission cables to ensure the relative positions between the power transmission lines and prevent accidental contact between the power transmission lines. Among them, the symmetric multi-channel interval device is a very common power transmission interval device. Such power transmission interval devices include a support structure in the middle and interval structures evenly arranged around the support structure. The currently commonly used interval structure is composed of through holes that maintain a certain relative distance, and the relative positions of the power transmission cables are defined by the distance between the through holes. The current problem is that since the power grid is located outdoors, the power transmission lines exposed to wind, sun, heat and cold shrinkage or pulling and shaking will cause displacement. The existing multi-channel interval devices do not have a positioning structure, or are only fixedly connected by common bolts and other methods. Due to the different degrees of deformation of each power transmission line, using the above fixing method will cause the interval device to tilt and shift due to the pulling of each end line, and ultimately lead to loosening. The direct result is that the multi-channel interval device may move left and right with the power transmission line, or the phase interval changes, resulting in accidents. At the same time, the interval distance of such multi-channel interval devices is fixed, and it is only applicable to a certain type of power transmission line or structure. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-voltage transmission phase disk that can adjust the relative positions between the power transmission cables, keep the interval distance between the power transmission lines unchanged, and effectively avoid moving or deforming along the power transmission line after being disturbed by external forces.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions.

[0006] A high-voltage transmission phase disk of the present invention includes a support ring in the middle and an adjustment component arranged on the support ring; the support ring is a circular ring structure, and a plurality of screw holes are evenly arranged on the support ring, and the screw holes are perpendicular to the ring surface of the ring and extend along the radial direction;

[0007] The adjusting component includes a screw rod and a fixed seat; both ends of the screw rod are respectively provided with threads with opposite helix directions, and one end of it is also provided with a top block. One end of the top block is rotatably connected to the screw rod, and the other end is provided with an adjusting groove.

[0008] The fixed seat includes a U-shaped seat body. A screw hole is provided in the middle of the cross arm of the seat body, and positioning grooves are respectively provided on the two vertical arms of the seat body. A buckle is provided on one side of the positioning groove, and the buckle can hold the power transmission cable in the positioning groove. The buckle and the vertical arm are movably connected through a bolt group; during the process of rotating the screw rod, the screw rod drives the top block to move up and down, and the adjusting groove and the positioning grooves on both sides move relatively, thereby clamping the power transmission cable and adjusting the clamping force, so that the power transmission line presents a certain arc-shaped deformation. According to the degree of deformation, pre-tightening is realized to prevent the phase-interval device from moving along the power transmission line.

[0009] The thread near one end of the screw rod on the top block is rotatably inserted into the screw hole on the seat body, and the thread at the other end is rotatably inserted into the screw hole on the support ring.

[0010] The force between the cables locks the power transmission cable, thereby effectively preventing the relative movement between the power transmission cable and the phase-interval device.

[0011] A further improvement of the present invention also includes that the top block is movably and rotatably connected to the end of the screw rod by a rotating buckle, forming a rotating connection structure similar to the end of a key ring.

[0012] A further improvement of the present invention also includes using a screw with a step. A counterbore is dug in the top block. The diameter of the large hole of the counterbore is larger than the diameter of the screw head, and the diameter of the small hole is smaller than the diameter of the screw head and larger than the diameter of the step; the lower end of the screw is provided with a threaded post with a diameter smaller than the step, and a screw hole is correspondingly provided on the screw rod.

[0013] A further improvement of the present invention also includes that connecting ears are provided on both sides of the seat body, and adjacent seat bodies are connected by connecting rods. Both ends of the connecting rod are respectively hinged on the connecting ears. Based on this structure, phase-interval devices with fixed relative positions between each power transmission cable can be connected to form symmetric or asymmetric structures by using connecting rods of different sizes.

[0014] During specific use, the adjusting component is installed in the screw holes on the support ring. When fixing the power transmission cable, the power transmission cable is positioned in the positioning groove by using the fixed seat and the buckle. After all the power transmission cables are fixed in the positioning groove and the phase-interval device is adjusted in position, by rotating the screw rod, the top block clamps the power transmission cable between the two arms of the seat body. The force between the top block, the positioning groove and the power transmission cable locks the power transmission cable, thereby effectively preventing the relative movement between the power transmission cable and the phase-interval device. Brief Description of the Drawings

[0015] Figure 1It is the front view of an inter-phase disc for high-voltage power transmission of the present invention;

[0016] Figure 2 It is the front view of an inter-phase disc for high-voltage power transmission of the present invention;

[0017] Figure 3 It is the schematic structural diagram of the adjusting component of the present invention;

[0018] Figure 4 It is the schematic structural diagram of the fixed seat in the adjusting component of the present invention;

[0019] Figure 5 It is the schematic structural diagram of the screw rod in the adjusting component of the present invention. Specific embodiments

[0020] The following will make a detailed description of the present invention in combination with specific embodiments.

[0021] An inter-phase disc for high-voltage power transmission of the present invention includes a support ring 2 in the middle and an adjusting component 1 arranged on the support ring 2;

[0022] As Figure 1 、 Figure 2 shown, the support ring 2 is in a circular ring structure, and a plurality of screw holes are uniformly arranged on the support ring 2. The screw holes are perpendicular to the ring surface of the ring and extend along the radial direction;

[0023] As Figure 3 shown, the adjusting component 1 includes a screw rod 11 (as Figure 5 shown), a fixed seat 10 (as Figure 4 shown); threads (11e, 11f) with opposite helix directions are respectively arranged at both ends of the screw rod 11, and a top block 8 is also arranged at one end thereof. One end of the top block 8 is rotatably connected to the screw rod, and an adjusting groove 8a is arranged at the other end;

[0024] In the specific implementation process, the top block 8 can be rotatably connected to the end of the screw rod in a rotating buckle manner, forming a rotating connection structure similar to the end of a key buckle; in one implementation, a screw 11d with a step 11c is used to dig a counterbore in the top block 8. The diameter of the large hole of the counterbore is larger than the diameter of the head of the screw 11d, and the diameter of the small hole is smaller than the diameter of the head of the screw 11d and larger than the diameter of the step 11c; a threaded column 11a with a diameter smaller than the step 11c is arranged at the lower end of the screw 11d, and a screw hole 11b is correspondingly arranged on the screw rod 11;

[0025] The fixing base 10 includes a U-shaped base body 10. A screw hole 10d is provided in the middle of the cross arm 10a of the base body 10. Positioning grooves 10c are respectively provided on the two vertical arms 10b of the base body 10. A snap ring 9 is provided on one side of the positioning groove 10c. The snap ring 9 can hold the power transmission cable in the positioning groove 10c. The snap ring 9 and the vertical arm 10b are movably connected by a bolt group 3. During the process of rotating the screw 11, the screw 11 drives the top block 8 to move up and down, adjusts the relative movement between the adjusting groove 8a and the positioning grooves 10c on both sides, thereby clamping the power transmission cable and adjusting the clamping force, so that the power transmission line presents a certain arc deformation. According to the degree of deformation, pre-tightening is achieved to prevent the phase-interval device from moving along the power transmission line.

[0026] The thread at one end of the screw 11 near the top block 8 is rotatably inserted into the screw hole 10d on the base body 10, and the thread at the other end is rotatably inserted into the screw hole on the support ring 2.

[0027] During specific use, the adjusting assembly 1 is installed in the screw holes on the support ring 2. When fixing the power transmission cable, the power transmission cable is positioned in the positioning groove 10c by using the fixing base 10 and the snap ring 9. After all the power transmission cables are fixed in the positioning groove 10c and the phase-interval device is adjusted in position, by rotating the screw 11, the top block 8 clamps the power transmission cable between the two arms of the base body 10, and the power transmission cable is locked by using the acting force between the top block 8, the positioning groove 10c and the power transmission cable, thereby effectively preventing the relative movement between the power transmission cable and the phase-interval device.

[0028] Based on the above structure, the positions of the power transmission cables can be adjusted by rotating the screw. For power transmission cables that need to relatively strictly maintain the same interval distance between the power transmission lines, the further improvement content of the present invention further includes that connection ears 10e are provided on both sides of the base body 10, and adjacent base bodies 10 are connected by a connecting rod 12. The two ends of the connecting rod 12 are respectively hinged on the connection ears 10e. Based on this structure, phase-interval devices with fixed relative positions between the power transmission cables can be connected to form symmetric or asymmetric shapes by using connecting rods of different sizes.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A high-voltage transmission phase disk, characterized in that, it includes a support ring located in the middle and an adjustment component arranged on the support ring; the support ring is of an annular structure, and a plurality of screw holes are uniformly arranged on the support ring, and the screw holes are perpendicular to the ring surface of the ring and extend along the radial direction; The adjustment component includes a screw rod and a fixed seat; threads with opposite helix directions are respectively arranged at both ends of the screw rod, and a top block is also arranged at one end thereof. One end of the top block is rotatably connected to the screw rod, and an adjustment groove is arranged at the other end; The fixed seat includes a U-shaped seat body. A screw hole is arranged in the middle of the cross arm of the seat body, and positioning grooves are respectively arranged on the two vertical arms of the seat body. A buckle ring is arranged on one side of the positioning groove, and the power transmission cable is buckled in the positioning groove. The buckle ring and the vertical arm are movably connected through a bolt group; during the process of rotating the screw rod, the screw rod drives the top block to move up and down, and the adjustment groove and the positioning grooves on both sides move relatively, thereby clamping the power transmission cable and adjusting the clamping force, so that the power transmission line presents a certain arc-shaped deformation. According to the degree of deformation, pre-tightening is realized to prevent the phase device from moving along the power transmission line; The thread at one end of the screw rod close to the top block is rotatably inserted into the screw hole on the seat body, and the thread at the other end is rotatably inserted into the screw hole on the support ring; The top block is rotatably connected to the end of the screw rod by a rotary buckle method; Connection ears are arranged on both sides of the seat body, and adjacent seat bodies are connected by a connecting rod. The two ends of the connecting rod are respectively hinged on the connection ears.

2. The high-voltage transmission phase disk according to claim 1, characterized in that, a screw with a step is provided, a counterbore is dug in the top block, the diameter of the large hole of the counterbore is larger than the diameter of the screw head, the diameter of the small hole is smaller than the diameter of the screw head and larger than the diameter of the step; a threaded column with a diameter smaller than the step is arranged at the lower end of the screw, and a screw hole is correspondingly arranged on the screw rod.

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