CN106300138A - A kind of fixture of live-line replacing strain single insulator - Google Patents

Abstract

The present invention relates to the fixture of a kind of live-line replacing strain single insulator, including Wire tensioning screw, insulating insulator bracket, shaft tower side fixture, side of wire fixture, insulation pulling plate and be built in the shaft tower side built-in module in the fixture of shaft tower side and the side of wire built-in module being built in side of wire fixture；The two ends of shaft tower side fixture are respectively connected with a Wire tensioning screw, and the other end of Wire tensioning screw connects insulation pulling plate, and the other end of insulation pulling plate is connected with side of wire fixture；Between shaft tower side fixture and side of wire fixture and be positioned at the lower section of insulator chain and be provided with insulating insulator bracket, the two ends of insulating insulator bracket are connected with shaft tower side fixture and side of wire fixture respectively；The head and the tail two ends of insulator chain are connected with shaft tower side built-in module and side of wire built-in module respectively.Present configuration is simple, volume is little, it is simple to carry；Built-in module can freely be changed, highly versatile, it is to avoid carries the fixture operation of many sets, reduces working strength；Realize livewire work, improve the reliability of power supply.

Description

A jig for replacing tension-resistant single-string insulators while live

technical field

The invention relates to a tool for live work maintenance of a power transmission line, in particular to a fixture for live replacement of tension-resistant single-string insulators.

Background technique

Electricity is the foundation of everything. With the rapid development of the economy, the demand for electricity in various industries is also increasing year by year, which brings unprecedented pressure on the power supply, and the supply exceeds the demand. Therefore, the reliability of transmission lines should be continuously improved. In order to avoid power outages, reduce power supply pressure, reduce economic losses and power loss, it is particularly important to carry out extensive non-stop maintenance.

In order to ensure superior service, the State Grid Corporation is vigorously carrying out live-line work. Shaoxing Power Supply Company’s Transmission Inspection Office currently governs 35kV-500kV lines, which are all important transmission lines. Any power failure on any line will bring huge economic losses to the society. At the same time, a large amount of power loss is caused. Therefore, the elimination of defects in live work is the only way to solve the above contradictions. Live work can not only realize the maintenance and elimination of equipment, but also keep the equipment in continuous operation, ensure the stable operation of the power system, and enable users to obtain uninterrupted electric energy, which has great social and economic benefits. We should continue to develop and improve live working methods and tools to improve work efficiency.

At present, live replacement of double-strand insulators has been widely used. However, the tools and tools for live replacement of double-strand insulators cannot be applied to replace single-strand insulators. Replacement greatly consumes manpower and material resources, and causes power failure loss at the same time.

Contents of the invention

Based on the above reasons, the object of the present invention is to provide a fixture for replacing a single-string tension insulator while it is live, which makes up for the gap in the existing single-string tension insulator replacement when power failure occurs.

In order to achieve the above object, the technical solution adopted in the present invention is:

A jig for replacing tension-resistant single-string insulators with electricity, including a tightening lead screw, an insulating bottle holder, a jig on the tower side, a jig on the wire side, an insulating pull plate, and a built-in module on the tower side built in the jig on the side of the tower and the built-in module on the wire side built in the wire side fixture; the pole tower side fixture and the wire side fixture are respectively located at the first and last ends of the insulator string, and the two ends of the pole tower side fixture are respectively connected to a tight wire screw, The other end of the tightening lead screw is connected to the insulating pull plate, and the other end of the insulating pull plate is fixedly connected to the clamp on the wire side; between the clamp on the tower side and the clamp on the wire side, an insulating bottle holder is provided under the insulator string. The two ends of the insulated bottle holder are respectively connected to the fixture on the tower side and the fixture on the wire side; the first and last ends of the insulator string are respectively connected to the built-in module on the tower side and the built-in module on the wire side.

The tight-wire lead screw adopts a powerful anti-torsion lead screw.

The two ends of the tower side jig and the wire side jig are respectively provided with round holes, and the round holes are fixed with mounting clips or rings. There are two insulating bottle holders, and the two ends of the insulating bottle holders are respectively fixed on the pole tower. On the mounting clip or ring of the side clamp and on the mounting clip or ring of the wire side clamp.

Several reinforcing ribs are arranged between the two insulating bottle holders.

Both the tower side jig and the wire side jig are provided with cuboid grooves in the middle, and the tower side built-in modules and the wire side built-in modules are embedded in the cuboid grooves.

The built-in module on the tower side and the built-in module on the wire side are made of titanium alloy.

The insulating bottle holder is made of epoxy resin material.

The tower side fixture and the wire side fixture are made of aluminum alloy.

A number of through holes are provided on the side of the insulating pull plate connected to the wire side clamp, and the two ends of the wire side clamp are fixed to the through holes of the insulation pull plate by bolts.

A handle is provided on the tightening lead screw.

The jig provided by the present invention is simple in structure, small in size, light in weight, and easy to carry; the built-in module can be configured and replaced according to the structure of the hardware, which makes the jig highly versatile and prevents the staff from carrying multiple sets of jigs for operation. The work intensity is reduced; two persons can work together, the operation is simple and the work efficiency is high; live work is realized, the number of power outages is reduced, and the reliability of power supply is improved.

The present invention will be further elaborated below through the accompanying drawings and specific embodiments.

Description of drawings:

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the top view of the present invention;

Fig. 3 is the bottom view of the present invention;

Fig. 4 is the left view of the present invention;

Fig. 5 is a right side view of the present invention.

detailed description:

As shown in Figures 1 to 5, a fixture for replacing a single string of tension-resistant insulators with electricity, including a tightening screw 4, an insulating bottle holder 6, a fixture 2 on the pole side, a fixture 3 on the wire side, and an insulating puller 5. There are cuboid slots in the middle of the tower side fixture 2 and the wire side fixture 3. The cuboid slots are used to place built-in modules that match the hardware structure, that is, the tower side is embedded in the cuboid groove on the pole tower side fixture 2. The built-in module 7 is embedded into the built-in module 8 on the wire side in the cuboid groove on the wire side fixture 3 . After the staff go up to the tower, the operator at the ground potential first installs the tower side fixture 2 on the pole tower, and uses one end of two tightening wire screws 4 to fix the two ends of the pole tower side fixture 2 respectively, and the other is at the Equipotential operators can enter the wire side through a special special insulating ladder or software, and fix the wire side clamp 3 on the wire side, so that the tower side clamp 2 and the wire side clamp 3 are respectively located at both ends of the insulator 1, Respectively connect the two ends of the wire side fixture 3 and the pole tower side fixture 2 together with two insulating pull plates 5, so that one end of the insulating pull plate 5 is connected with the tightening lead screw 4, and the other end of the insulating pull plate 5 One end is connected with the wire side fixture 3. There are also several through holes on the side of the insulating pull plate 5 connected to the wire side clamp 3, and the two ends of the wire side clamp 3 are fixed to the through holes of the insulating pull plate 5 by bolts, which can be selected according to the length of the insulator 1. Suitable through-hole mounting locations. In order to support the insulator 1 when the insulator 1 is replaced, two insulating bottle holders 6 are provided below the insulator 1. The tool 3 is connected, that is, a round hole is provided at both ends of the pole tower side fixture 2 and the wire side fixture 3, and the mounting clip 10 or the ring can be fixed at the round hole, and the two ends of the insulating bottle holder 6 are respectively Penetrate into the ring to fix the position or fix it on the mounting clip 10 with bolts.

When replacing the insulator 1, the built-in module 7 on the tower side and the built-in module 8 on the wire side are respectively connected to the head and tail of the insulator string. Use the handle 9 on the tightening screw 4 to turn the tightening screw 4, thereby adjusting the distance between the clamp 2 on the pole tower side and the clamp 3 on the wire side, and tighten the tension insulator by tightening the tightening screw 4 Therefore, the tightening lead screw 4 adopts a strong anti-torque lead screw, which can increase the strength and stroke margin, and can realize the load tightening of LGJ-240 (110KV, 220KV) wires. Both the built-in module 7 on the tower side and the built-in module 8 on the wire side are made of titanium alloy, which has extremely high strength and tensile properties. The insulating bottle holder 6 is made of epoxy resin material, and when the insulator 1 is replaced to make the tension wire loose, the insulating bottle holder 6 can play the role of lifting the insulator 1. In order to make the lifting effect more stable, several reinforcing ribs 11 are also provided between the two insulating bottle holders to increase the strength of the insulating bottle holder 6 . Both the tower side fixture 2 and the conductor side fixture 3 are made of aluminum alloy LC4.C.S, and their strength should meet the maximum load-bearing requirements of the tension bar.

When using the clamp of the present invention to replace the tension-resistant single-string insulator, first complete the installation of the structure of each part of the clamp according to the above requirements, and the ground potential staff tighten the clamp 2 on the tower side and the clamp on the wire side through the tightening screw 4 3, so that the tool bears the tensile force of the tension wire, thereby loosening the single string insulator 1, so that it no longer bears the tension of the tension wire. Under the lifting of the insulator bottle holder 6, the equipotential staff can replace a single Or whole string insulator operation. The entire jig adopts a structure that is easy to disassemble and assemble, and it is convenient to bring various parts to the tower for assembly, which provides convenience for the staff's work.

The above embodiments are only used to illustrate the technical solution of the present invention without limitation. Other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention should be covered as long as they do not depart from the spirit and scope of the technical solution of the present invention. Within the scope of the claims of the present invention.

Claims (10)

1. A fixture for replacing tension-resistant single-string insulators with electricity, which is characterized in that it includes a tightening screw, an insulating bottle holder, a fixture on the pole side, a fixture on the wire side, an insulating pull plate, and a fixture built into the side of the pole The built-in module on the tower side and the built-in module on the wire side built in the fixture on the conductor side; the fixture on the tower side and the fixture on the conductor side are respectively located at the first and last ends of the insulator string, and the two ends of the fixture on the tower side are respectively connected to a Tight wire screw connection, the other end of the tight wire screw is connected to the insulating pull plate, and the other end of the insulating pull plate is fixedly connected to the clamp on the conductor side; There is an insulating bottle holder, and the two ends of the insulating bottle holder are respectively connected with the fixture on the tower side and the fixture on the wire side; 2. The fixture for replacing tension-resistant single-string insulators while live according to claim 1, characterized in that: the tightening lead screw adopts a strong anti-torsion lead screw. 3. A clamp for live replacement of tension-resistant single-string insulators according to claim 1, characterized in that: the two ends of the tower side clamp and the wire side clamp are respectively provided with round holes, and the round holes are fixed There are mounting clips or rings, two insulating bottle holders, and the two ends of the insulating bottle holders are respectively fixed on the mounting clips or rings of the fixture on the tower side and the mounting clip or ring of the fixture on the wire side. 4. The fixture for replacing tension-resistant single-string insulators while live according to claim 3, characterized in that: several reinforcing ribs are arranged between the two insulating bottle holders. 5. A clamp for live replacement of tension-resistant single-string insulators according to claim 1, characterized in that: the middle part of the clamp on the tower side and the clamp on the wire side is provided with a rectangular parallelepiped groove, and the built-in module on the tower side and The built-in module on the wire side is embedded in the cuboid groove. 6. The fixture for replacing tension-resistant single-string insulators while live according to claim 1, characterized in that: the built-in module on the tower side and the built-in module on the wire side are made of titanium alloy. 7. The fixture for replacing tension-resistant single-string insulators while live according to claim 1, wherein the insulating bottle holder is made of epoxy resin. 8. A fixture for replacing tension-resistant single-string insulators while live according to claim 1, wherein the fixture on the tower side and the conductor side are made of aluminum alloy. 9. A clamp for live replacement of tension-resistant single-string insulators according to claim 1, characterized in that: the side where the insulating pull plate is connected to the clamp on the wire side is provided with a number of through holes, and the clamp on the wire side The two ends are fixed to the through holes of the insulating pull plate by bolts. 10 . The jig for replacing tension single-string insulators while live according to claim 1 , wherein a handle is provided on the tightening lead screw. 11 .