CN113852003B - Wire hanging pulley combination tool for equipotential operation of power transmission line and hanging method thereof - Google Patents

Abstract

The invention relates to a wire pulley combination tool for equipotential operation of transmission lines, and belongs to the technical field of live maintenance tools for transmission lines. Including the insulating sleeve rod, the insulating sleeve rod is equipped with a roller device capable of reciprocating sliding along the length direction of the insulating sleeve rod, a hanging pulley is installed under the roller device, and a limit piece that acts as a limit is installed at one end of the insulating sleeve rod. A wire fork is installed below the limit piece. The invention has the advantages of safe and reliable hanging, flexible adjustment, and convenient installation, and solves the problem of inconvenient transmission and installation of electric field tools for electric potential operations such as the insulating soft ladder flying car method of transmission lines.

Description

A combination tool of hanging pulley for equipotential operation of transmission lines and its hanging method

technical field

The invention relates to a wire pulley combination tool for equipotential work on transmission lines, in particular to a transmission tool for hanging a flying car at the front end of an insulating ladder on a live wire, and belongs to the technical field of live maintenance tools for transmission lines.

Background technique

During the operation of transmission lines, defects such as broken strands of transmission line conductors, missing spacers, and anti-vibration hammer slippage often occur. In order to ensure safe operation of transmission lines and uninterrupted continuous power supply, the insulating soft ladder flying method is usually used. deal with.

In order to hang the flying car at the front end of the insulating ladder on the live wire, it is first necessary to install the bucket block. The existing method is: the ground potential electrician stands on the cross arm, and uses the insulating operating rod to pick the bucket block with the insulating transfer rope to the live wire Install the pulley at one end of the tumbler block to the wire, and then use the insulated transmission rope to hang the flying car connected to the soft ladder on the wire through the pulley at the other end. The existing bucket block has two pulleys and the supporting metal iron plates thereof, and its own weight is large. Simultaneously, the bucket block is connected with an insulating endless rope ring, which increases the weight of the whole set of equipment. Taking the 220kV overhead line as an example, the following equipment is installed from the hanging point of the bucket block to the cross arm: U-shaped hanging ring, extension ring, front-end connecting plate, right-angle hanging plate, ball-end hanging ring, tension insulator, bowl-head hanging plate, The total length of back-end connection boards, wire crimping tubes and other equipment shall be more than 4 meters. Usually, the operator standing on the cross arm cannot be on the same vertical plane as the operating wire, so the length of the hand-held insulating operating rod must be increased to reach the operating point. After comprehensive calculation, the length of the insulating operating rod held by the operator is about 5 meters. When the operator installs the whole set of tumbler block equipment on the wire by holding a 5-meter insulating operating rod, the following situations will occur: 1. The operator is not physically fit enough to install the equipment; 2. The insulating operating rod is severely bent after being stressed, and the rod The body shakes and cannot smoothly install the opening of the tumbler block on the wire. After several attempts by the operator, the physical strength drops rapidly and the whole set of equipment cannot be moved. Therefore, the use of the existing heel block puts forward very high requirements to the physical fitness and technology of the operating personnel.

In order to ensure the uninterrupted power supply of the entire line and reduce the number of power outages, in view of the above factors that limit work, it is urgent to develop a wire pulley for equipotential work on transmission lines to reduce physical energy consumption and ensure safe and reliable completion of work.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems, and provide a combination tool and a flying car hanging method for equipotential work on transmission lines. The problem of inconvenient transmission and installation of electric field tools.

The present invention relates to a wire-hanging pulley combination tool for equipotential work on power transmission lines, which is special in that it includes an insulating sleeve rod, and a roller device capable of reciprocating sliding along the length direction of the insulating sleeve rod is set on the insulating sleeve rod. A wire pulley is installed at the bottom, a limit piece is installed at one end of the insulating sleeve rod, and a wire fork is installed under the limit piece;

Preferably, the insulating sleeve rod includes an insulating rod, the limiter includes a metal head screwed to one end of the insulating rod, the wire fork is installed under the metal head, the inside of the metal head is a hollow structure, and a slope-shaped slope is installed inside the metal head. Limiting plate, the high end of the limiting plate is located outside the metal head;

Preferably, the lower end of the limiting plate is provided with a round hole, the round hole is set on the fixing column, the two ends of the fixing column are installed on the metal head, the lower surface of the middle section of the limiting plate is connected with one end of the limiting spring, and the limiting The other end of the bit spring is installed at the bottom of the metal head;

Preferably, the roller device includes a roller set on the outside of the insulating rod, two symmetrical hanging lugs are installed under the roller, the hanging lugs are composed of two spaced apart hanging arms, and a There are hanging ear buckles, the hanging ear buckles are arc-shaped, one end of the hanging ear buckle is hinged on the hanging arm through a pin, and the other end is equipped with a pressure spring, and one end of the pressure spring is installed on the hanging arm;

Preferably, the intersection of the tops of the two hanging arms is triangular;

Preferably, the wire hanging block includes a limit hook and a pulley. A pulley bolt is installed at the center of the pulley shaft. The two ends of the pulley bolt are located outside the pulley. Moving up and down, the bottom of the pulley is hinged to the limit hook through hinge bolts, the limit hook is arc-shaped, and a hook hole is installed on the limit hook.

The present invention relates to a method for hanging a wire pulley combined tool for equipotential work on transmission lines, which is special in that it includes the following steps:

1. The ground electrician passes the insulating rope into the pulley and connects the end of the insulating rope;

2. The ground potential electrician carries the transfer rope to the cross arm of the tower operation phase, and the ground electrician transfers the wire-hanging block combination tool to the tower;

3. The ground potential electrician puts the wire fork on the working phase wire, and connects the roller device and the wire pulley;

4. The ground potential electrician inserts the roller from the end of the insulating rod, tilts the insulating rod, and controls the sliding speed of the roller by adjusting the inclination angle;

5. The ground potential electrician adjusts the length of the insulating rope to control the position of the roller, and stops when the roller moves to the limit plate 4;

6. The ground potential electrician adjusts the opening direction of the limit hook. When it reaches the top of the wire, reduce the inclination angle of the insulating sleeve rod so that the wire enters the limit hook smoothly;

7. After the installation is completed, the limit hook is reset, and the ground potential electrician lifts the insulating sleeve rod. The limit hook is pulled by the wire, so that the roller device and the wire pulley are disconnected, and the wire pulley is installed on the wire;

8. After all the work is completed, when it is necessary to remove the wire pulley, the ground potential electrician uses the hook of the wire fork of the insulating sleeve rod to insert into the hook hole, and the operator picks up the insulating rod, opens the opening of the limit hook, and the wire pulley is released from the wire. Remove and pass to the ground.

The present invention can produce following positive effect compared with prior art:

The present invention completes the hanging wire pulley combination tool for equipotential work on transmission lines, which can effectively overcome the above-mentioned deficiencies in the prior art, realize the transmission and installation of electric field tools for equipotential work on overhead transmission lines, and reduce the labor intensity of operators. Improve the safety factor and operating efficiency to ensure operating safety.

Compared with prior art, the advantage of the present invention is:

1. Reduce the labor intensity of operators. When the operator installs the equipment, the weight held by the operator is the weight of the insulating operating rod, which reduces the weight of the entire equipment of the existing trolley block and reduces the technical and physical requirements of the operator.

2. The specificity of the roller structure. The roller device can carry the wire pulley to slide along the insulating rod. The operator inserts the roller from the end of the insulating rod and tilts the insulating rod. By adjusting the inclination angle, the sliding speed of the roller is controlled to reduce the weight of the operator.

3. The uniqueness of the buckle structure of the hanging lug of the roller device. An ear buckle that can move circularly around the pin is installed on the hanging ear, and a pressure spring is installed on the other end of the hanging ear buckle to provide support for the hanging ear buckle. The hanging lug and the hanging lug buckle work together to send the hanging tackle to the working position by clamping the pulley bolts on the hanging tackle. The operator lifts the insulating sleeve rod, and the limit hook is subjected to the pulling force of the wire, so that the hook buckle of the connected roller device and the wire pulley are disconnected.

4. The specificity of the metal head structure. The metal head is a hollow structure with a limiting plate inside, and a round hole is opened at one end of the limiting plate, and the round hole is fixed by a fixing column. A limit spring is installed in the middle of the limit plate, which limits the opening of the limit plate. When the roller passes through the limit plate, under the action of the limit spring, the limit plate plays a role in limiting the retreat of the roller device. The other end of the limiting plate is slightly higher than the plane of the metal head. When the roller device passes through the limiting plate, the limiting spring can be compressed to reach the rod head smoothly.

5. The structure specificity of the hanging block. The limit hook is connected with the pulley through the hinge bolt, and the limit hook can rotate around the hinge bolt. After the limit hook is installed on the wire, the ground potential electrician lifts the insulating sleeve rod, and the limit hook is pulled by the wire, so that the connected roller device and the wire pulley are disconnected, and the installation of the wire pulley is completed. When it is necessary to take off the wire block, the ground potential electrician uses the hook of the wire fork of the insulating sleeve rod to insert into the hook hole, and the operator picks the insulating rod, opens the opening of the limit hook, and the wire block is removed from the wire.

Description of drawings

Fig. 1: The structure schematic diagram of a kind of hanging wire pulley combined tool for equipotential operation of transmission line according to the present invention;

Figure 2: Schematic diagram of the structure of the roller device.

In the figure: 1, insulating rod; 2, metal head; 3, wire fork; 4, limit plate; 5, fixed column; 6, limit spring; 7, roller; 8, hanging ear; 8-1, hanging Arm; 9, pin; 10, lug buckle; 11, pressure spring; 12, limit hook; 13, pulley; 14, hook hole; 15, insulating rope; 16, round hole; 17, pulley bolt.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

In this embodiment, a wire-hanging pulley combination tool for equipotential work on transmission lines, referring to accompanying drawings 1-2, includes an insulating sleeve rod, and a roller device capable of reciprocating sliding along the length direction of the insulating sleeve rod is set on the insulating sleeve rod. A wire pulley is installed under the shaft device, a limiter is installed at one end of the insulating sleeve rod, and a wire fork 3 is installed under the limiter;

The specific structure of the insulating sleeve rod: the insulating sleeve rod includes the insulating rod 1, the limiter includes the metal head 2 screwed on one end of the insulating rod 1, the wire fork 3 is installed under the metal head 2, and the inside of the metal head 2 is a hollow structure. A slope-shaped limiting plate 4 is installed inside the head 2 , and the high end of the limiting plate 4 is located outside the metal head 2 . The lower end of the limiting plate 4 is provided with a circular hole 16, the circular hole 16 is set on the fixed column 5, and the two ends of the fixed column 5 are installed on the metal head 2, and the lower surface of the middle section of the limiting plate 4 is connected to one end of the limiting spring 6. The other end of the limit spring 6 is installed on the bottom of the metal head 2.

The roller device includes a roller 7 set on the outside of the insulating rod 1. Two symmetrical hanging lugs 8 are installed under the roller 7. The hanging lug 8 is composed of two spaced apart hanging arms 8-1. The two hanging arms 8-1 is provided with hanging ear buckle 10, and hanging ear buckle 10 is arc-shaped, and one end of hanging ear buckle 10 is hinged on the hanging arm 8-1 by pin 9, and pressure spring 11 is installed on the other end, and the pressure One end of the spring 11 is installed on the hanging arm 8-1, and the intersection of the tops of the two hanging arms 8-1 is triangular.

The insulating rod 1 is made of insulating material, and one end is provided with threads, which can be tightened with the metal head 2 screws. The limit spring 6 acts to limit the opening of the limit plate 4. When the roller 7 passes through the limit plate 4, under the action of the limit spring 6, the limit plate 4 plays a role in restricting the roller device from retreating. . The other end of the limiting plate 4 is slightly higher than the plane of the metal head 2, and when the roller device passes through the limiting plate 4, the limiting spring 6 can be compressed to reach the rod head smoothly.

The specific structure of the hanging block: the hanging block includes a limit hook 12 and a pulley 13. A pulley bolt 17 is installed at the axis of the pulley 13. The two ends of the pulley bolt 17 are located outside the pulley 13. The pulley 13 is clamped on two hanging lugs 8 Between, the pulley 13 is limited to move up and down by the lug buckle 10, and the bottom of the pulley 13 is hinged to the limit hook 12 by hinge bolts. The limit hook 12 is arc-shaped, and the limit hook 12 is equipped with a hook hole 14.

An ear buckle 10 that can move circularly around the pin 9 is installed on the hanging ear 8 , and a pressure spring 11 is installed on the other end of the hanging ear buckle 10 to provide support for the hanging ear buckle 10 . Hanging lug 8 cooperates with hanging lug buckle 10, and by blocking the pulley bolt 17 on the hanging tackle, the hanging tackle is sent to the working position. Since the pulley bolt 17 is hexagonal, and the intersection of the tops of the two hanging arms 8-1 is triangular, the pulley bolt 17 can just be stuck at the intersection of the triangle.

In this embodiment, a method for hanging a wire pulley combination tool for equipotential work on transmission lines includes the following steps:

1. The ground electrician passes the insulating rope 15 into the pulley 13, and connects the end of the insulating rope 15;

2. The ground potential electrician carries the transfer rope to the cross arm of the tower operation phase, and the ground electrician transfers the wire-hanging block combination tool to the tower;

3. The ground potential electrician connects the wire fork 3 to the working phase wire, and connects the roller device and the wire pulley;

4. The ground potential electrician inserts the roller 7 from the end of the insulating rod 1, and tilts the insulating rod, and controls the sliding speed of the roller 7 by adjusting the inclination angle;

5. The ground potential electrician adjusts the length of the insulating rope 15 to control the position of the roller 7, and stops when the roller 7 moves to the limit plate 4;

6. The ground potential electrician adjusts the opening direction of the limit hook 12. When it reaches the top of the wire, reduce the inclination angle of the insulating sleeve rod so that the wire enters the limit hook 12 smoothly;

7. After the installation is completed, the limit hook 12 is reset, and the ground potential electrician lifts the insulating sleeve rod, the limit hook 12 is pulled by the wire, so that the roller device and the wire pulley are disconnected, and the wire pulley is installed on the wire;

8. After all the work is completed, when it is necessary to remove the wire hanging block, the ground potential electrician uses the hook of the wire fork 3 of the insulating sleeve rod to insert into the hook hole 14, and the operator picks up the insulating rod 1, opens the opening of the limit hook 12, and hangs the wire The tackle is removed from the wire and passed to the ground.

The invention is safe and reliable, flexible in adjustment and convenient in installation, and solves the problem of inconvenient transmission and installation of electric field tools for electric potential operations such as the insulating soft ladder flying car method of transmission lines.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides a transmission line equipotential operation is with hanging wire coaster combination tool, its characterized in that includes insulating loop bar, is equipped with the roller device that can follow insulating loop bar length direction reciprocal slip on the insulating loop bar, installs the hanging wire coaster below the roller device, and the locating part that plays the limiting effect is installed to insulating loop bar one end, installs the wire fork below the locating part;

the insulation sleeve rod comprises an insulation rod, the limiting piece comprises a metal head screwed on one end of the insulation rod, the wire fork is arranged below the metal head, the inside of the metal head is of a hollow structure, a slope-shaped limiting plate is arranged in the metal head, and one end of the high position of the limiting plate is positioned outside the metal head;

the roller device comprises a roller sleeved outside the insulating rod, two symmetrical hanging lugs are arranged below the roller and are composed of two hanging arms which are spaced apart, hanging lug buckles are arranged between the two hanging arms, the hanging lug buckles are arc-shaped, one end of each hanging lug buckle is hinged to the corresponding hanging arm through a pin, a pressure spring is arranged at the other end of each hanging lug buckle, and one end of each pressure spring is arranged on the corresponding hanging arm;

the hanging wire pulley comprises a limiting hook and a pulley, a pulley bolt is arranged at the axis of the pulley, two ends of the pulley bolt are located outside the pulley, the pulley is clamped between two hangers, the pulley is limited to move up and down through the hangers, the bottom of the pulley is hinged with the limiting hook through a hinge bolt, the limiting hook is arc-shaped, and a hook hole is formed in the limiting hook.

2. The hanging pulley combination tool for equipotential operation of the power transmission line according to claim 1, wherein a round hole is formed at one end of the limiting plate, which is low in position, the round hole is sleeved on a fixed column, two ends of the fixed column are arranged on a metal head, the lower surface of the middle section of the limiting plate is connected with one end of a limiting spring, and the other end of the limiting spring is arranged at the bottom of the metal head.

3. A line hanging pulley combination tool for equipotential operation of a power transmission line according to claim 1, wherein the top junction of the two hanging arms is triangular.

4. A method for hooking a hooking block for equipotential operation of a transmission line according to any one of claims 1 to 3, characterized by comprising the steps of:

1) The ground electrician penetrates the insulating rope into the pulley and is connected with the end of the insulating rope;

2) The ground potential electrician carries a transmission rope to climb to a pole tower operation phase cross arm, and the ground electrician transmits a line hanging pulley combination tool to the tower;

3) The ground potential electrician fork the lead to the operation phase lead, and the roller device and the lead hanging pulley are connected;

4) The ground potential electrician sleeves the roller from the tail part of the insulating rod, inclines the insulating sleeve rod, and controls the sliding speed of the roller by adjusting the inclination angle;

5) The ground potential electrician adjusts the length of the insulating rope so as to control the position of the roller, and the roller stops when moving to the limiting plate;

6) The electrician of ground potential adjusts the opening direction of the limit hook, when reaching the position right above the wire, reduce the oblique angle of the insulating sleeve rod, make the wire enter the limit hook smoothly;

7) After the installation, the limit hook is reset, the ground potential electrician lifts the insulation sleeve rod, the limit hook is pulled by the lead, the roller device is disconnected with the line hanging pulley, and the line hanging pulley is installed on the lead;

8) When all works are completed and the wire hanging pulley is required to be taken down, a ground potential electrician uses the hooks of the wire fork of the insulating sleeve rod to insert the hook holes, an operator lifts the insulating rod, the opening of the limiting hook is opened, and the wire hanging pulley is taken down from the wire and conveyed to the ground.

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