CN211701243U - A jumper spacer bar electrified defect elimination device - Google Patents

Abstract

The utility model relates to an electrified defect elimination device for jumper spacers, comprising a support block, a transmission unit, a wire clamp unit and an operation unit for realizing clamping and opening of the wire clamp unit; the transmission unit and the wire clamp unit are installed on the support block; the wire clamp unit is also connected with the transmission unit; the transmission unit and the operation unit are detachably connected, the missing device is installed near the damaged spacer bar, and the wire clamp unit is respectively clamped Two sub-conductors that need to be spaced to achieve live elimination of spacers. Compared with the prior art, the utility model has the advantages of simple operation mode, good safety, no influence on the original jumper spacer, good practicability, and can be electrified and eliminated.

Description

A jumper spacer bar electrified defect elimination device

technical field

The utility model relates to the technical field of operation and maintenance of power transmission lines, in particular to an electrified defect elimination device for jumper spacers.

Background technique

The spacer bar is a metal fitting installed on the split guide to fix the spacing between the split guides to prevent the guides from whipping each other, suppress breeze vibration and secondary pitch oscillation, and play the role of phase-to-phase insulation spacing and support connection in the line. When the maintenance personnel conducted a drone inspection, they found that the upper phase jumper of a 500kV transmission line was damaged and the wire clip of the hanging string wire terminal was damaged, and the sub-conductor was about to come out. This defect is a critical defect, which poses a huge threat to the safe operation of the line. The falling off of the sub-conductor may cause a tripping accident due to insufficient safety distance of the neutral-phase cross-arm at any time, resulting in a power failure of the line, which needs to be repaired immediately.

Live operation has become the mainstream operation method of the line because it does not affect the power supply of the line and can eliminate line defects. But sometimes when some lines are located in the jumper insulator string and need equipotential work, such as the middle phase of the three-phase line, the safety distance of the combined gap may be insufficient, and live work cannot be performed, and the power grid must be stopped to solve the problem.

Utility model content

The purpose of the present utility model is to provide a device for eliminating electrical defects of jumper spacers with simple operation mode, easy implementation, good safety and good practicability in order to overcome the above-mentioned defects of the prior art.

The purpose of the present utility model can be achieved through the following technical solutions:

A jumper spacer bar electrified defect elimination device, comprising a support block, a transmission unit, a wire clamp unit and an operation unit for realizing the clamping and opening of the wire clamp unit; the transmission unit and the wire clamp unit are installed on the support The wire clamp unit is also connected with the transmission unit; the transmission unit is detachably connected with the operation unit, the missing device is installed near the damaged spacer bar, and the wire clamp unit clamps two A sub-conductor that needs to be spaced to achieve electrified elimination of spacers.

Preferably, the number of the wire clip units is two, which are respectively installed at both ends of the support block.

More preferably, the wire clamp unit includes a first clamping claw and a second clamping claw; the first clamping claw is fixedly connected with the support block; the second clamping claw is slidably connected with the support block; the The first clamping jaw and the second clamping jaw are respectively connected with the transmission unit.

Preferably, the defect elimination device is provided with a limit nut for clamping the wire harness by the wire clamp unit; the limit nut is installed on the transmission unit.

Preferably, the transmission unit is a screw.

Preferably, the operating unit includes an operating rod and an operating rod connecting part; the operating rod connecting part is mounted on the operating rod through bolts; the operating rod connecting part is provided with a U-shaped groove.

More preferably, the defect elimination device is provided with a joint fastening part, and the fastening part is welded to one end of the transmission unit; the joint fastening part is provided with a straight-line protrusion matching the U-shaped groove.

More preferably, the operating rod is an operating rod made of insulating material or an operating rod wrapped with an insulating skin.

Preferably, the defect elimination device is provided with a suspension unit for suspending the defect elimination device at the damaged spacer bar; the suspension unit is fixed on the support block through threads.

More preferably, the suspension unit is a ring structure.

Compared with the prior art, the utility model has the following advantages:

1. The operation method is simple and easy to realize: the utility model adopts the insulating rope to hoist the device to the installation position, and the operating rod fastens it to realize the operation of eliminating the damage of the jumper and the spacer. Compared with the traditional power failure operation, no application is required. The power failure operation can be completed as long as two people operate on the cross arm, and the operation method is simple and easy to realize.

2. Good safety: the wire clip in the utility model can be clamped and opened through the operating rod, and the operator can hold the insulating operating rod to work, which improves the safety of the device.

3. No effect on the original jumper spacer: the defect elimination device in the utility model is installed near the damaged jumper spacer in the process of eliminating the defect, and replaces the damaged part of the jumper spacer to support the jumper sub-conductor, which plays a role in The function of emergency elimination has no effect on the original line spacer.

4. Good practicability: The defect elimination device in the utility model is used to relieve the defect of damage to the spacer bar at the jumper, and the size of the defect elimination device can be changed according to the requirements of different voltage levels, and it can be applied to each voltage level.

5. Can be charged to eliminate defects: the defect elimination device in the utility model uses an insulating rope to suspend the device at the place to be eliminated, and then uses an insulating operating rod to complete the clamping operation of the wire clip. The whole process does not need to apply for line power failure, and the operation time It is short and has high work efficiency, which ensures the safety and stability of the high-voltage power grid.

Description of drawings

Fig. 1 is the structural representation of the defect elimination device in the utility model;

Fig. 2 is the structural representation of the utility model center line clamp unit;

Fig. 3 is the structural representation of the operating lever in the utility model;

4 is a schematic structural diagram of a connecting portion of an operating rod in the utility model;

FIG. 5 is a schematic structural diagram of a suspension unit in the present invention.

The numbers in the figure show:

1. Support block, 2. Transmission unit, 3. Clamp unit, 4. Operating unit, 5. Limit nut, 6. Joint fastening part, 7. Suspension unit, 301, First gripper, 302, Second The clamping jaw, 401, the operating rod, 402, the connecting part of the operating rod.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are a part of the embodiments of the present utility model, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The utility model relates to an electrified defect elimination device for jumper spacers, the structure of which is shown in FIG. Operating unit 4. The transmission unit 2 and the wire clamp unit 3 are both mounted on the support block 1 , the wire clamp unit 3 is also connected with the transmission unit 2 , and the transmission unit 2 is detachably connected with the operation unit 4 .

The number of the wire clip units 3 is two, and they are respectively installed on both ends of the support block 1 . The structure of the wire clamp unit is shown in Figure 2, including a first clamping jaw 301 and a second clamping jaw 302, the first clamping jaw 301 is fixedly connected to the support block 1, the second clamping jaw 302 is slidably connected to the support block 1, and the first clamping jaw 301 is fixedly connected to the support block 1. The clamping jaw 301 and the second clamping jaw 302 are respectively connected with the transmission unit 2 .

The transmission unit 2 is provided with limit nuts 5 . In this embodiment, the number of limit nuts 5 is three, which are respectively installed on the transmission unit 2 . The limit nuts located at both ends of the transmission unit 2 are used to realize the clamping operation of the jaws, and the limit nuts located at the middle position of the transmission unit 2 are used to limit the transmission unit.

The transmission unit 2 in this embodiment is a screw.

The operation unit 4 includes an operation lever 401 and an operation lever connecting portion 402. The structure of the operation lever 401 is shown in FIG. 3, and the structure of the operation lever connecting portion 402 is shown in FIG. 4. The operation lever connecting portion 402 is installed on the operation lever 401 by bolts On the upper side, a U-shaped groove is provided on the operating lever connecting portion 402 .

The defect elimination device is provided with a joint fastening portion 6, which is welded to one end of the transmission unit 2, and the joint fastening portion 6 is provided with a straight-line protrusion that matches the U-shaped groove.

The operating rod 401 in this embodiment is an operating rod made of an insulating material or an operating rod wrapped with an insulating skin.

The defect elimination device in this embodiment is further provided with a suspension unit 7 for suspending the defect elimination device at the damaged spacer bar, and the unit is fixed on the support block 1 by threads. The structure of the suspension unit 7 is shown in FIG. 5 , and the suspension unit 7 in this embodiment adopts a ring structure.

The dimensions of the key components in this embodiment are specifically:

Support block: length 535mm, width 40mm, thickness 28mm;

Suspension unit: the outer diameter is 50mm, the inner diameter is 28mm, and the two suspension units are respectively fixed at 5mm from both sides of the support block;

Wire clamp unit clamping jaw: C-type wire clamp with an outer diameter of 58mm and an inner diameter of 30mm;

Transmission unit: screw with a length of 650mm and a diameter of 10mm. Install limit nuts at 60mm, 178mm and 532mm of the screw;

Joint fastening part: a cross joint with a length of 32mm and a width of 32mm, welded on the screw.

There are the following requirements when the operator is working:

Requirement 1: Carry out deficiencies in good weather;

Requirement 2: The live operators who participate in the elimination of the shortage should have undergone special live work training and tool use training, and have passed the examination;

Requirement 3: There is a dedicated guardian for live work on site;

Requirement 4: Perform a performance test on the insulating operating rod before operation.

The specific operation process of the defect elimination device in this embodiment is as follows:

Step 1: On-site tools and equipment are paved with special canvas, and the final inspection of tools and shielding clothing before operation is carried out;

Step 2: Two operators wear shielded suits and carry insulating operating rods to the tower;

Step 3: An operator lifts the defect elimination device to the damaged jumper spacer with an insulating rope;

Step 4: Another operator fixes the connecting part of the operating rod on the operating rod with bolts, then connects the connecting part of the operating rod with the fastening part of the joint, and rotates the operating rod until the wire harness is clamped;

Step 5: The operator goes down the tower, the tools are sorted and summarized, and the defect elimination operation is completed.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent modifications or replacements should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A jumper spacer bar electrified defect elimination device, characterized in that the defect elimination device comprises a support block (1), a transmission unit (2), a wire clamp unit (3) and a wire clamp unit (3) for realizing the 3) The operation unit (4) for clamping and opening; the transmission unit (2) and the wire clamp unit (3) are both installed on the support block (1); the wire clamp unit (3) is also connected with the The transmission unit (2) is connected; the transmission unit (2) is detachably connected with the operation unit (4); the defect elimination device is installed near the damaged spacer bar, and the wire clamp units (3) are respectively clamped Two sub-conductors that need to be spaced to realize the electrification of the spacer bar. 2. A jumper spacer bar electrified defect elimination device according to claim 1, characterized in that the number of the wire clip units (3) is two, which are respectively installed at both ends of the support block (1) . 3 . The device for eliminating electrical defects of jumper spacers according to claim 2 , wherein the wire clamp unit ( 3 ) comprises a first clamping jaw ( 301 ) and a second clamping jaw ( 302 ); 4 . The first clamping jaw (301) is fixedly connected with the support block (1); the second clamping jaw (302) is slidably connected with the support block (1); the first clamping jaw (301) and the The two clamping jaws (302) are respectively connected with the transmission unit (2). 4. A jumper spacer bar electrified defect elimination device according to claim 1, characterized in that the defect elimination device is provided with a limit nut (5) for clamping the wire harness by the wire clamp unit (3) ; The limit nut (5) is installed on the transmission unit (2). 5 . The device for eliminating electrical defects of jumper spacers according to claim 1 , wherein the transmission unit ( 2 ) is a screw. 6 . 6. A jumper spacer bar electrified defect elimination device according to claim 1, characterized in that the operation unit (4) comprises an operation lever (401) and an operation lever connection part (402); the operation lever (402); The operating rod connecting part (402) is mounted on the operating rod (401) through bolts; the operating rod connecting part (402) is provided with a U-shaped groove. 7. A jumper spacer bar electrified defect elimination device according to claim 6, characterized in that the defect elimination device is provided with a joint fastening part (6), and the fastening part is welded to the transmission unit (2). ); the joint fastening part (6) is provided with a straight-line protrusion matching the U-shaped groove. 8 . The device for eliminating electrical defects of jumper spacers according to claim 6 , wherein the operating rod ( 401 ) is an operating rod made of insulating material or an operating rod wrapped with an insulating skin. 9 . 9. A jumper spacer bar electrified defect elimination device according to claim 1, characterized in that the defect elimination device is provided with a suspension unit (7) for suspending the defect elimination device at the damaged spacer bar; The suspension unit (7) is fixed on the support block (1) through threads. 10 . The device for eliminating electrical defects of jumper spacers according to claim 9 , wherein the suspension unit ( 7 ) is a ring structure. 11 .

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