Method for installing a live traction pole

Abstract

The application discloses a kind of charged installation operation methods of traction type support rod, it is related to support rod installation technical field, including rod body, first elbow, second elbow, self-locking mechanism, pull ring, sleeve ring, first rope ring, second rope ring and fixed column, the both ends of rod body are equipped with first elbow and second elbow respectively, self-locking mechanism is equipped on rod body, the opening of first elbow and second elbow is plugged by self-locking mechanism, pull ring is equipped on self-locking mechanism, sleeve ring is equipped on pull ring, sleeve ring is opened by cooperating with the fixed column on rod body, first rope ring and second rope ring are respectively equipped on the rod body of the both sides of pull ring;The application simple and reasonable structure greatly reduces the labor intensity of operating personnel;The ground traction support rod moves fixed technology on wire simultaneously solves the technical problem that double split wire support rod of vertical arrangement cannot be charged installation, expands the operating range of live working.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of support rod installation, in particular to a method for installing a traction type support rod under live wire. BACKGROUND

[0002] It is known that, in the operation of 220kV transmission lines, the increase of load leads to the adhesion of double-bundle sub-conductors. After the adhesion of the sub-conductors, the geometric spacing of the bundle sub-conductors is greatly reduced, which leads to the easy occurrence of corona discharge and the decrease of local ground capacitance. These will cause the increase of line loss and the interference to nearby radio communication. On the other hand, after the adhesion of the bundle sub-conductors, the conductor whipping phenomenon is prominent, and the sub-conductors are easily abraded. This not only further increases the line loss, but also may cause the breakage of sub-conductors and even the breakage of the line.

[0003] After the adhesion of double-bundle sub-conductors of the transmission line, in order to eliminate the hidden danger in time, the conventional method is to carry out the power-off maintenance of the transmission line, lengthen the lower sub-conductor of the double-bundle sub-conductor by using installation and construction tools, and increase the geometric spacing of the double-bundle sub-conductor. The main defects of the power-off maintenance operation mode for eliminating defects are as follows: 1. The power-off plan of the transmission line is limited, and it is difficult to eliminate the defects in time; 2. The construction method is complicated, the construction tools are many, the number of cooperating personnel is large, the time is consumed, and the power supply reliability of the line is affected.

[0004] In 2010, the personnel of Xiamen Power Supply Company developed a device for installing the conductor spacer under live wire. By using the device, the conductor spacer can be installed on the vertical double-bundle conductor by using the equipotential operation mode, and the line hidden danger can be eliminated in time. However, the installation of the spacer under live wire also has defects, mainly including the following two points: 1. The structure of the spacer is that a metal rod is provided with a clamp at each end. The spacer is installed on the conductor by tightening the bolts on the clamp. This operation needs the operator to reach the conductor by using the operation tool to complete the operation, and 2. Under the condition of not power-off, the installation mode of the spacer can only be implemented on the single loop horizontal erected pole tower or the triangular arranged pole tower or the lower phase conductor arranged vertically on the same tower. However, for the upper and middle phase conductors arranged vertically on the same tower, due to the entry of the operator into the electric field and the implementation process, the distance between the operator and the adjacent phase conductor and the distance between the operation hanging ladder or the flying car and the adjacent phase conductor cannot be effectively guaranteed. Therefore, the spacer cannot be installed under live wire on the upper and middle phase conductors arranged vertically. Therefore, the present application provides a method for installing a traction type support rod under live wire. SUMMARY

[0005] In order to solve the problems in the prior art, the purpose of the present application is to provide a method for installing a traction type support rod under live wire.

[0006] In order to achieve the above-mentioned purpose of the application, the present application adopts the following technical scheme:

[0007] A method for installing a traction-type support rod under power includes a rod body, a first bend, a second bend, a self-locking mechanism, a pull ring, a collar, a first rope threading ring, a second rope threading ring, and a fixing post. The rod body has a first bend and a second bend at both ends, and a self-locking mechanism is provided on the rod body. The openings of the first bend and the second bend are sealed by the self-locking mechanism. The self-locking mechanism has a pull ring, and the pull ring has a collar. The collar cooperates with the fixing post on the rod body to open the self-locking mechanism. The rod body on both sides of the pull ring has a first rope threading ring and a second rope threading ring, respectively.

[0008] The rod is a cylindrical structure with a sliding groove in the middle and a self-locking mechanism inside the sliding groove.

[0009] The first elbow and the second elbow have the same structure. Both the first elbow and the second elbow are hook-shaped structures. The first elbow is located at one end of the rod, and the second elbow is located at the other end of the rod.

[0010] Both the first and second elbows are provided with grooves, and bearings are provided in the grooves. There is at least one bearing in each groove, and the outer side of the bearing protrudes from the opening of the groove. The bearing is movably disposed in the groove, and the rolling of the bearing is used to reduce friction when the elbow moves.

[0011] The first elbow has a first groove and a second groove, and the second elbow has a third groove and a fourth groove. The first groove and the second groove are distributed on both sides of the inner wall of the first elbow. The first groove contains a first bearing, and the second groove contains a second bearing. The center lines of the first bearing and the second bearing are perpendicular to each other. The third groove and the fourth groove are distributed on both sides of the inner wall of the second elbow. The third groove contains a third bearing, and the fourth groove contains a fourth bearing. The center lines of the third bearing and the fourth bearing are perpendicular to each other.

[0012] The self-locking mechanism consists of a first top block, a connecting rod, a spring, a second fixed block, a third fixed block, a linkage rod, and a fourth fixed block. The linkage rod is located in the sliding groove of the rod body. The two ends of the linkage rod are respectively provided with a third fixed block and a fourth fixed block. The third fixed block and the fourth fixed block are respectively provided with a first top block and a second top block. The third fixed block is provided with a connecting rod, which passes through the second fixed block on the rod body and connects to the first top block. A spring is provided between the first top block and the second fixed block. The linkage rod is provided with a first fixed block, which is provided with a fifth groove. A pin is provided in the fifth groove, and a movable head is provided on the pin. A pull ring is provided on the movable head, and a collar is provided on the pull ring. The pull ring and the collar are perpendicular to each other. The collar is located on the outer side of the bottom of the pull ring and is used to fit onto the fixed post.

[0013] The linkage rod moves within the sliding groove under the action of the pull ring on the first fixed block. The sliding groove is parallel to the center line of the rod body. The first bend, the second bend, the first top block, the second top block, the second fixed block, and the third fixed block are on the same side of the rod body. The first top block and the second top block are used to block the openings of the first bend and the second bend, respectively. The first fixed block, the first rope loop, the second rope loop, and the first fixed block are on the same straight line on the other side of the rod body.

[0014] The first top block and the second top block have the same structure. The top surfaces of the first top block and the second top block are arc-shaped, and the top surfaces of the first top block and the second top block form a circular structure with the openings of the first elbow and the second elbow, respectively.

[0015] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0016] A method for live-line installation of traction-type support rods involves sequentially installing the support rods on vertically arranged upper and middle phase conductors by setting a first bend, a second bend, and a self-locking mechanism on the rod body. This invention features a simple and reasonable structure. Based on multi-rotor UAV aerial suspension installation technology for traction-type support rods, it achieves unmanned tower climbing operation, significantly reducing the labor intensity of workers. Simultaneously, the ground-traction support rod movement and fixation technology on the conductor solves the technical problem of not being able to install support rods for vertically arranged double-split conductors under live conditions, expanding the scope of live-line operation. Attached Figure Description

[0017] Fig. 1 This is a schematic diagram of the structure of the present invention;

[0018] Fig. 2 This is a schematic diagram of the connection structure between the pull ring and the first fixing block of the present invention;

[0019] 1. First elbow; 2. First bearing; 3. First groove; 4. First rope loop; 5. Rod body; 6. First fixing block; 7. Pin; 8. Pull ring; 9. Collar; 10. Fixing post; 11. Linkage rod; 12. Third bearing; 13. Third groove; 14. Second rope loop; 15. Sliding groove; 16. Second bearing; 17. Second groove; 18. First top block; 19. Connecting rod; 20. Spring; 21. Second fixing block; 22. Third fixing block; 23. Protective cover; 24. Second elbow; 25. Fourth bearing; 26. Fourth groove; 27. Second top block; 28. Fourth fixing block; 29. ​​Movable head; 30. Fifth groove. Detailed Implementation

[0020] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0021] Combined with appendixFigs. 1-2 The method for installing a live-lined traction support rod includes a rod body 5, a first bend 1, a second bend 24, a self-locking mechanism, a pull ring 8, a collar 9, a first rope threading ring 4, a second rope threading ring 14, and a fixing post 10. The rod body 5 has a first bend 1 and a second bend 24 at both ends. The rod body 5 is equipped with a self-locking mechanism, and the openings of the first bend 1 and the second bend 24 are sealed by the self-locking mechanism. The self-locking mechanism is equipped with a pull ring 8, and the pull ring 8 is equipped with a collar 9. The collar 9 cooperates with the fixing post 10 on the rod body 5 to open the self-locking mechanism. The rod body 5 on both sides of the pull ring 8 is equipped with a first rope threading ring 4 and a second rope threading ring 14, respectively.

[0022] The rod 5 has a cylindrical structure, and a sliding groove 15 is provided in the middle of the rod 5. A self-locking mechanism is provided in the sliding groove 15.

[0023] The first elbow 1 and the second elbow 24 have the same structure. Both the first elbow 1 and the second elbow 24 are hook-shaped structures. The first elbow 1 is located at one end of the rod body 5, and the second elbow 24 is located at the other end of the rod body 5.

[0024] Both the first elbow 1 and the second elbow 24 are provided with grooves, and bearings are provided in the grooves. There is at least one bearing in the groove, and the outer side of the bearing in the groove protrudes from the opening of the groove. The bearing is movably disposed in the groove, and the rolling of the bearing is used to reduce friction when the elbow moves.

[0025] The first elbow 1 has a first groove 3 and a second groove 17 inside, and the second elbow 24 has a third groove 13 and a fourth groove 26 inside. The first groove 3 and the second groove 17 are distributed on both sides of the inner wall of the first elbow 1. The first groove 3 contains a first bearing 2, and the second groove 17 contains a second bearing 16. The center lines of the first bearing 2 and the second bearing 16 are perpendicular to each other. The third groove 13 and the fourth groove 26 are distributed on both sides of the inner wall of the second elbow 24. The third groove 13 contains a third bearing 12, and the fourth groove 26 contains a fourth bearing 25. The center lines of the third bearing 12 and the fourth bearing 25 are perpendicular to each other.

[0026] The self-locking mechanism consists of a first top block 18, a connecting rod 19, a spring 20, a second fixing block 21, a third fixing block 22, a linkage rod 11, a second top block 27, and a fourth fixing block 28. The linkage rod 11 is disposed in the sliding groove 15 of the rod body 5. The two ends of the linkage rod 11 are respectively provided with the third fixing block 22 and the fourth fixing block 28. The third fixing block 22 and the fourth fixing block 28 are respectively provided with the first top block 18 and the second top block 27. The third fixing block 22 is provided with the connecting rod 19, which passes through the first top block 18 and the second top block 27. The second fixing block 21, which is placed on the rod body 5, is connected to the first top block 18. A spring 20 is provided between the first top block 18 and the second fixing block 21. The linkage rod 11 is provided with a first fixing block 6. The first fixing block 6 is provided with a fifth groove 30. A pin 7 is provided in the fifth groove 30. A movable head 29 is provided on the pin 7. A pull ring 8 is provided on the movable head 29. A collar 9 is provided on the pull ring 8. The pull ring 8 and the collar 9 are perpendicular to each other. The collar 9 is set on the outer side of the bottom of the pull ring 8. The collar 9 is used to fit on the fixing post 10.

[0027] A protective cover 23 is provided on the rod 5 at the spring 20.

[0028] The linkage rod 11 moves within the sliding groove 15 under the action of the pull ring 8 on the first fixed block 6. The sliding groove 15 is parallel to the center line of the rod body 5. The first bend 1, the second bend 24, the first top block 18, the second top block 27, the second fixed block 21, and the third fixed block 22 are on the same side of the rod body 5. The first top block 18 and the second top block 27 are used to block the openings of the first bend 1 and the second bend 24, respectively. The first fixed block 6, the first rope ring 4, the second rope ring 14, and the first fixed block 6 are on the same straight line on the other side of the rod body 5.

[0029] The first top block 18 and the second top block 27 have the same structure. The top surfaces of the first top block 18 and the second top block 27 are arc-shaped structures, and the top surfaces of the first top block 18 and the second top block 27 form a circular structure with the openings of the first elbow 1 and the second elbow 24, respectively.

[0030] Example 1 describes a method for installing a live-line traction support rod. The overall height of the rod body 5 is 500 mm, the diameter or width of the support rod is 30 mm, the effective height of the two bends is 400 mm, the inner diameter of the bends is 24 mm, the thickness of the top block is 10 mm, the height of the linkage rod spring support is 12 mm, the length of the linkage rod 11 within the spacer is 280 mm, the diameter of the spring 20 is 8 mm, there are 4 bearings with a diameter of 20 mm, the diameter of the rope loop is 30 mm, the inner diameter is 14 mm, the distance between the two loops is 400 mm, and the inner diameter of the pull ring 8 is 20 mm and the outer diameter is 25 mm.

[0031] When in use, after the ground personnel operate the transfer rope and the support rod is installed on the conductor, the ground personnel pull the support rod to move it on the conductor. After the support rod is moved to the fixed position on the conductor, the traction rope is released to fix the support rod on the conductor.

[0032] Metal bearings are embedded in the two bends of the rod body 5. The metal bearings are distributed on both sides of the bend, and their two axes of symmetry overlap with the center of the conductor and are perpendicular to each other. The bearings protrude 2 mm from the inner wall of the bend, at least 1 mm, so that the bend can travel on the conductor without occupying the effective height of the support rod. A total of 4 bearings are designed to be embedded in one bend, with at least one bearing embedded in each bend. They are symmetrical in pairs, so that the conductor can stay stable when it travels and will not tilt forward or backward and rub against the conductor.

[0033] A first rope loop 4 and a second rope loop 14 are set on opposite sides of the upper and lower bends of the support rod. After one end of the rope passes through the first rope loop 4 to the second rope loop 14, it is connected to the other end of the rope on the lower side of the second rope loop 14 to form an endless rope, which is used to control the entire support rod.

[0034] Using a drone, a pulley carrying a transfer rope is installed on an overhead ground wire above the conductor where the support rod needs to be installed. One end of the pulley's transfer rope passes through the support rod, from the first rope loop 4 to the lower end of the second rope loop 14. Then, the two ends of the transfer rope are connected to the closed loop to form an endless rope. The rope pulling the support rod is then passed through the pull ring 8 of the self-locking mechanism linkage rod 11. Ground personnel control the process by pulling the pull ring 8 beforehand, compressing the spring 20 to lower the first top block 18 and the second top block 27 of the support rod, making the support rod open and fixed to the fixed column 10. The pulley rope is then used to lift the support rod to the working phase conductor. With the cooperation of the support rod pull ring rope, the first bend 1 on the support rod is hooked into the conductor, and then the second bend 24 is hooked into the conductor. The support rod pull ring is then pulled out, causing the spring 20 to spring open, and the two top blocks hold the conductor. The pulley rope is then released, and the pulley is removed by the drone. Ground electricians pull the support rod rope along the conductor to the position where it needs to be fixed. After removing the rope, the installation of the support rod is completed.

[0035] The parts of this invention not described in detail are prior art. Although the invention has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of the invention. However, those skilled in the art should understand that various changes in form and detail can be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the invention.

Claims

1. A method for installing a traction-type support rod while the circuit is energized, characterized in that: First, after the ground operator operates the transfer rope to install the support rod onto the conductor, the ground operator pulls the support rod to move it on the conductor. After the support rod is moved to a fixed position on the conductor, the traction rope is released to fix the support rod on the conductor; the support rod includes a rod body, a first bend, a second bend, a self-locking mechanism, a pull ring, a collar, a first rope threading ring, a second rope threading ring, and a fixing post. The two ends of the rod body are respectively provided with a first bend and a second bend. The rod body is provided with a self-locking mechanism, and the openings of the first bend and the second bend are sealed by the self-locking mechanism. The self-locking mechanism is provided with a pull ring, and the pull ring is provided with a collar. The collar cooperates with the fixing post on the rod body to open the self-locking mechanism. The two sides of the rod body on the pull ring are respectively provided with a first rope threading ring and a second rope threading ring. Metal bearings are embedded in the two bends of the rod body. The metal bearings are distributed on both sides of the bend. Their two axes of symmetry overlap with the center of the conductor and are perpendicular to each other. The bearings protrude at least 1 mm from the inner wall of the bend, so that the bend can travel on the conductor without occupying the effective height of the support rod. At least one bearing is embedded in the bend to ensure that the conductor remains stable when traveling and does not tilt forward or backward and rub against the conductor. A first rope loop and a second rope loop are set on opposite sides of the upper and lower bends of the support rod. After one end of the rope passes through the first rope loop to the second rope loop, it is connected to the other end of the rope on the lower side of the second rope loop to form an endless rope, which is used to control the entire support rod with rope. Using a drone, a pulley carrying a transfer rope is installed on an overhead ground wire above the conductor where the support rod needs to be installed. One end of the pulley's transfer rope passes through the support rod, from the first rope loop to the lower end of the second rope loop. Then, the two ends of the transfer rope are connected to the closed loop to form an endless rope. The rope pulling the support rod is then passed through the pull ring of the self-locking mechanism linkage rod, controlled by ground personnel. The pull ring is pulled beforehand, compressing the spring and lowering the first and second top blocks of the support rod, putting the support rod in an open state and fixing it to the fixed column. The pulley rope is then used to raise the support rod to the working phase conductor. With the cooperation of the support rod pull ring rope, the first bend on the support rod is hooked into the conductor, and then the second bend is hooked into the conductor. The support rod pull ring is pulled out, causing the spring to spring open, and the two top blocks hold the conductor. The pulley rope is then released, and the drone removes the pulley. Ground electricians pull the support rod rope along the conductor to the required fixing position. After the rope is removed, the installation of the support rod is complete.

2. The support rod used in the operation method according to claim 1, characterized in that: The rod is a cylindrical structure with a sliding groove in the middle and a self-locking mechanism inside the sliding groove.

3. The support rod according to claim 2, characterized in that: The first elbow and the second elbow have the same structure. Both the first elbow and the second elbow are hook-shaped structures. The first elbow is located at one end of the rod, and the second elbow is located at the other end of the rod.

4. The support rod according to claim 3, characterized in that: Both the first and second elbows are provided with grooves, and bearings are provided in the grooves. There is at least one bearing in each groove, and the outer side of the bearing protrudes from the opening of the groove. The bearing is movably disposed in the groove, and the rolling of the bearing is used to reduce friction when the elbow moves.

5. The support rod according to claim 4, characterized in that: The first elbow has a first groove and a second groove, and the second elbow has a third groove and a fourth groove. The first groove and the second groove are distributed on both sides of the inner wall of the first elbow. The first groove contains a first bearing, and the second groove contains a second bearing. The center lines of the first bearing and the second bearing are perpendicular to each other. The third groove and the fourth groove are distributed on both sides of the inner wall of the second elbow. The third groove contains a third bearing, and the fourth groove contains a fourth bearing. The center lines of the third bearing and the fourth bearing are perpendicular to each other.

6. The support rod according to any one of claims 1-5, characterized in that: The self-locking mechanism consists of a first top block, a connecting rod, a spring, a second fixed block, a third fixed block, a linkage rod, and a fourth fixed block. The linkage rod is located in the sliding groove of the rod body. The two ends of the linkage rod are respectively provided with a third fixed block and a fourth fixed block. The third fixed block and the fourth fixed block are respectively provided with a first top block and a second top block. The third fixed block is provided with a connecting rod, which passes through the second fixed block on the rod body and connects to the first top block. A spring is provided between the first top block and the second fixed block. The linkage rod is provided with a first fixed block, which is provided with a fifth groove. A pin is provided in the fifth groove, and a movable head is provided on the pin. A pull ring is provided on the movable head, and a collar is provided on the pull ring. The pull ring and the collar are perpendicular to each other. The collar is located on the outer side of the bottom of the pull ring and is used to fit onto the fixed post.

7. The support rod according to claim 6, characterized in that: The linkage rod moves within the sliding groove under the action of the pull ring on the first fixed block. The sliding groove is parallel to the center line of the rod body. The first bend, the second bend, the first top block, the second top block, the second fixed block, and the third fixed block are on the same side of the rod body. The first top block and the second top block are used to block the openings of the first bend and the second bend, respectively. The first fixed block, the first rope loop, the second rope loop, and the first fixed block are on the same straight line on the other side of the rod body.

8. The support rod according to claim 7, characterized in that: The first top block and the second top block have the same structure. The top surfaces of the first top block and the second top block are arc-shaped, and the top surfaces of the first top block and the second top block form a circular structure with the openings of the first elbow and the second elbow, respectively.

9. The application of the support rod according to claim 7 in live traction installation.

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