CN102856838B - Replacement tools and replacement methods for tubular busbar post insulators - Google Patents

Abstract

The invention discloses a tubular bus post insulator replacing tool and a replacing method, wherein a hoop with a universal connector is used as a holding rod supporting point to fix one end of a holding rod on a concrete rod of a framework, and a clamp and a cross beam of the framework are used for rigid fixation, so that the problems that a tubular bus does not have a supporting point, an insulator is difficult to hoist and the like when the tubular bus post insulator of a substation is replaced are solved, the tubular bus post insulator can be replaced without power failure of peripheral equipment, the power failure range is maximally reduced, and the technical blank of replacing the tubular bus post insulator is filled.

Description

Replacement tools and replacement methods for tubular busbar post insulators

technical field

The present invention relates to a replacement device for tubular busbar post insulators, in particular to a replacement tool and replacement method for tubular busbar post insulators.

Background technique

There are tubular bus bars in many substations. The insulation creepage distance of post insulators of this tubular bus bar cannot meet the anti-pollution requirements, and due to the long running time, defects such as cracks in post insulators are often found in recent years. Therefore, it is necessary to The post insulators of tubular busbars should be replaced, but due to the lack of working tools and operation methods required for the replacement of tubular busbars, the replacement of post insulators of tubular busbars has not been implemented.

Contents of the invention

The object of the present invention is to overcome the disadvantages of the prior art, and provide a replacement tool capable of replacing tubular busbar post insulators.

Another object of the present invention is to provide a method for replacing tubular busbar post insulators.

A tool for replacing tubular busbar post insulators. The key points of its structure are: it includes a holding bar, and a holding hoop is connected to the bottom of the holding bar. The hoop and the holding bar are detachably connected. The poles are hinged together, and the angle between the pole and the cross section of the hoop varies from 0 to 360°, and there is also a fixture at the middle and upper part of the pole to fix the pole on the beam of the tubular busbar frame , more than two groups of pulleys are arranged on the top of the pole. The pulleys and the pole are connected in a detachable manner. The pulleys can rotate around the pole with the axis of the pole as the rotation axis. The tubular bus The Post Insulator Replacement Kit also includes an insulating rope for supporting the tubular busbar and an insulating rope for the hoisting insulator.

When in use, the hoop and the pulley block of the tubular busbar post insulator replacement tool are respectively installed on both ends of the pole, and then the hoop is connected to the upper part of the concrete bar of the tubular busbar frame, and the clamp is connected to the beam of the tubular busbar frame Then connect one end of the two insulating ropes to the tubular busbar, and the other end goes around one of the pulley blocks and connects to the wire tensioner or hoist on the ground or the frame beam, and the other rope is connected to the insulator. Similarly, another set of pulleys in the top pulley set around the pole is connected with the wire tightener or hoist on the ground or the beam to realize the replacement of the insulator.

The block of pulleys is a goat's horn type pulley block, and more than two groups of pulleys are arranged side by side on the two goat's horns. the

The claw-type pulley block can increase the support strength of the pulley block, and at the same time, it can avoid the phenomenon of knotting and entanglement of the rope that goes around the pulley block.

The clamp includes two U-shaped brackets and two connecting pieces connecting the corresponding sides of the two U-shaped brackets, and the upper and lower parts of the connecting piece are provided with a long length extending along the length direction of the connecting piece for the sides of the U-shaped bracket to pass through. The holes are provided with threads at the end of the U-shaped bracket, and the two connecting pieces respectively pass through the corresponding sides of the two U-shaped brackets and are locked with nuts to realize the positioning of the U-shaped bracket on the tubular busbar construction crossbeam.

When in use, the U-shaped bracket is clamped on the pole in the up and down position, and then the upper and lower brackets are respectively passed through the upper and lower surfaces of the frame beam, and the two connecting pieces are respectively connected to the corresponding sides of the upper and lower U-shaped brackets. After locking, the pole can be fixed on the beam of the frame through the bracket.

Of course, the clamp may also be a hoop or a U-shaped lock.

There are two rows of foot spikes arranged at intervals on both sides of the upper section of the pole.

The foot nails are arranged at intervals on both sides of the upper section of the pole so that the operator can climb to the top of the pole along the foot nails from the structural beam of the tubular bus bar.

The holding rod is a length-adjustable holding rod.

The adjustment of the length of the holding pole is that the holding pole is composed of more than two sections of rods, and the sections are connected by flanges and connectors, or are screwed together.

The insulating ropes used to support the tubular busbars are Dyneema high-strength ropes.

A method for replacing tubular busbar post insulators, the specific steps of which are:

(1) Install the pulley block on the top of the pole and assemble the pole, and lift the pole to a suitable position;

(2) Install the hoop at 2 to 3 meters below the top of the concrete pole of the tubular busbar frame, install the hoop, and connect it to the pole;

(3) Adjust the angle of the pole, and install the fixture on the frame beam;

(4) Then connect one end of an insulating rope to the tubular busbar, bypass the other end of one of the pulley blocks and connect it to the ground or the wire tightener or hoist on the beam of the tubular busbar frame, and connect the other end of the insulating rope Connect to the insulator, and connect the other end to the ground or the wire tensioner or hoist on the horizontal dyeing of the tubular busbar frame after bypassing the other group of the pulley block;

(5) Finally, tighten the hoist or wire tightener to tighten the insulating rope supporting the tubular busbar, so that the supporting force of the post insulator is transferred to the rope, thereby realizing the replacement of the insulator.

Described pulley block is a claw type pulley block.

In summary, compared with the prior art, the present invention has the following advantages:

The replacement tool and replacement method for the tubular busbar pillar insulators of the present invention utilize the structural characteristics of the tubular busbar frame itself in the substation, and use the hoop with the universal connector as the pole support point to fix one end of the pole to the concrete pole of the frame The fixture and the beam of the frame are used for rigid fixation, which overcomes the problems of no support point for the tubular busbar and the difficulty in hoisting the insulator when the tubular busbar post insulator is replaced in the substation, and can realize the replacement of the tubular busbar post insulator for surrounding equipment without power failure , to minimize the scope of power outages, and to fill in the gap in the replacement technology of tubular busbar post insulators.

Description of drawings

Figure 1 is a schematic diagram of the hoop structure of the present invention.

Fig. 2 is the structure schematic diagram of claw type pulley block.

Fig. 3 is a schematic diagram of the structure of the clamp.

Figure 4 is a schematic structural view of the upper section of the pole of the present invention.

Fig. 5 is a view of the use state of the tool for replacing tubular busbar post insulators of the present invention.

Explanation of reference numerals 1 pole 11 foot nail 2 hoop 3 clamp 31 U-shaped bracket 32 connecting piece 4 claw-type pulley block 41 pulley.

Detailed ways

The present invention will be described in more detail below in conjunction with examples.

Example 1

A tubular busbar post insulator replacement tool, which includes a holding rod 1, and a holding hoop 2 is connected to the bottom of the holding rod. The connection between the holding hoop and the holding rod is detachable. They are hinged together, and the included angle between the pole and the cross section of the hoop varies between 0 and 360°. A clamp 3 for fixing the pole to the beam of the tubular busbar frame is also provided at the middle and upper part of the pole. The top of the pole is provided with a horn-type pulley block, and two or more sets of pulleys 41 are arranged side by side on the two horns. The shaft is a rotating shaft and can rotate around the pole. The tubular busbar support insulator replacement tool also includes an insulating rope for supporting the tubular busbar and an insulating rope for lifting the insulator. Described clamp is to comprise two U-shaped brackets and two connecting piece 32 that connects two U-shaped brackets 31 corresponding sides, is provided with for the limit of U-shaped bracket to pass through along the connecting piece length direction at the upper and lower parts of connecting piece. The extended long hole is provided with threads at the end of the U-shaped bracket, and the two connecting pieces respectively pass through the corresponding sides of the two U-shaped brackets and are locked with nuts to realize the positioning of the U-shaped bracket on the structural beam of the tubular busbar. Two rows of foot nails 11 are arranged at intervals on both sides of the upper section of the pole. The holding rod is composed of two sections, and the flanges are used to connect the two sections. The insulating ropes used to support the tubular busbars are Dyneema high-strength ropes.

The parts not described in this embodiment are the same as the prior art.

Example 2

A method for replacing tubular busbar post insulators, the specific steps of which are:

(1) Install the horn-type pulley block on the top of the pole and assemble the pole, and lift the pole to a suitable position;

(2) Install the hoop at 2 to 3 meters below the top of the concrete pole of the tubular busbar frame, install the hoop, and connect it to the pole;

(3) Adjust the angle of the pole, and install the fixture on the frame beam;

(4) Then connect one end of an insulating rope to the tubular busbar, and the other end goes around one of the claw-type pulley blocks, and then connects it to the ground or the wire tensioner or hoist on the beam of the tubular busbar frame, and then insulates the other end. One end of the rope is connected to the insulator, and the other end is passed around the other set of claw-type pulley blocks, and the other end is connected to the ground or the wire tensioner or hoist on the transverse dyeing of the tubular busbar frame;

(5) Finally, tighten the hoist or wire tensioner to tighten the insulating rope supporting the tubular busbar, so that the supporting force of the post insulator is transferred to the rope, thereby realizing the replacement of the insulator.

The parts not described in this embodiment are the same as those in Embodiment 1.

Claims (7)

1. A tubular busbar post insulator replacement tool, characterized in that: it includes a holding bar, and a holding hoop is connected to the bottom of the holding bar. The hoop and the holding bar are detachably connected. When connecting, the holding hoop It is hinged with the pole, and the angle between the pole and the cross section of the hoop varies from 0° to 360°. There is also a crossbeam on the middle and upper part of the pole to fix the pole to the tubular busbar frame The clamp on the top of the pole is provided with more than two sets of pulleys at the top of the pole. The pulleys and the pole are connected in a detachable manner. The pulleys can rotate around the pole with the shaft of the pole as the rotation axis. The tubular busbar post insulator replacement kit also includes an insulating rope for supporting the tubular busbar and an insulating rope for the hanger insulator. 2 . The tool for replacing tubular busbar post insulators according to claim 1 , wherein the pulley block is a horn-type pulley block, and two or more sets of pulleys are arranged side by side on two horns. 3 . 3. The tubular busbar post insulator replacement tool according to claim 2, characterized in that: the clamp includes two U-shaped brackets and two connecting pieces connecting the corresponding sides of the two U-shaped brackets, and the upper and lower sides of the connecting piece The upper portion is provided with a long hole extending along the length direction of the connecting piece for the side of the U-shaped bracket to pass through. The end of the U-shaped bracket is provided with a thread, and the two connecting pieces pass through the corresponding sides of the two U-shaped brackets respectively. The positioning of the U-shaped bracket on the structural beam of the tubular busbar can be realized by locking. 4. The tool for replacing tubular busbar post insulators according to claim 1, characterized in that: two rows of spikes are arranged at intervals on both sides of the upper section of the pole. 5. The tool for replacing tubular busbar post insulators according to any one of claims 1 to 4, wherein the holding rod is a holding rod with adjustable length. 6. The tool for replacing insulators of tubular busbar posts according to claim 5, wherein the insulating rope used to support the tubular busbar is a Dyneema high-strength rope. 7. A method for replacing tubular busbar post insulators, the specific steps of which are: Install the claw-type pulley block on the top of the pole and assemble the pole, and lift the pole to a suitable position; Install the hoop at 2 to 3 meters below the top of the concrete pole of the tubular busbar frame, install the hoop, and connect it to the pole; Adjust the angle of the holding pole, and install the fixture on the frame beam; Then connect one end of an insulating rope to the tubular busbar, and connect the other end to the ground or the wire tensioner or hoist on the beam of the tubular busbar frame, and connect the other end of the insulating rope to On the insulator, and the other end is bypassed by another group of claw-type pulleys, and the other end is connected to the ground or the wire tensioner or hoist on the beam of the tubular busbar frame; Finally, tighten the hoist or wire tensioner, and tighten the insulating rope supporting the tubular busbar, so that the support force of the post insulator is transferred to the rope, thereby realizing the replacement of the insulator.