CN110212324A - A kind of hanging device and method of voltage levels temporary ground wire - Google Patents

Abstract

The present invention relates to project of transmitting and converting electricity technical fields, disclose the hanging device and method of a kind of voltage levels temporary ground wire.The hanging device includes: cord, the first insulating cord, pulley mechanism, the second insulating cord and operating stick；The hooking method includes: the first insulating cord of traction across conducting wire to be pressed from both sides, and the pulley mechanism being fixed among the first insulating cord is promoted to and is closed on behind the specified altitude assignment position for pressing from both sides conducting wire, the first insulating cord rope end is fixed and plays the role of fixed turbine；Drop-down head end rises temporary ground wire slowly across the head end of pulley mechanism, the second insulating cord of tail end grounding clip, waits the earthing clamp of operating stick with when pressing from both sides the height such as conducting wire, control wire clamp clamps conducting wire to be pressed from both sides.Entire mounting process of the invention is simple and efficient, and is not necessarily to auxiliary tool, is substantially reduced operation and maintenance cost；The operating space of occupancy is smaller, can effectively ensure that operational instrument and closes on charging equipment holding safe distance, the operating time is short, and universality is strong.

Description

A hooking device and method for a high-voltage level temporary grounding wire

technical field

The invention relates to the technical field of power transmission and transformation engineering, in particular to a hooking device and method for a high-voltage level temporary grounding wire.

Background technique

When power equipment needs to be repaired in a power outage, according to the requirements of the safety work regulations of the electrical industry, in order to ensure the safety of the operators, it is necessary to install temporary grounding wires on each possible incoming power side of the power outage maintenance equipment.

When hooking up temporary ground wires, the following issues often need to be considered:

First, because there may be live equipment around the power outage equipment required in the substation site, when temporarily connecting the ground wire, it is necessary to consider that the safe distance between the operating tool and the adjacent live equipment should meet the requirements.

Second, when connecting the temporary grounding wire, it is necessary to consider the residual induced electricity of the connected equipment, the insulation performance of the tool, and whether the connection process will cause irreversible mechanical damage to the equipment.

Third, the process of connecting the temporary grounding wire should not be too cumbersome. The cumbersome steps will affect the time of power outage and power transmission, and the use of too many auxiliary equipment will increase the cost of equipment maintenance.

Fourth, the solution also needs to consider the universality of different devices, and it should be widely applicable to different types of devices.

However, for equipment with a higher voltage level, the general installation position is relatively high, which leads to a relatively high installation position of the temporary ground wire, so the insulation operating rod of the temporary ground wire is generally long and heavy, and it is very difficult to operate. Moreover, when the insulating operating rod is supported from the horizontal direction to the vertical direction, it is easy to cause the operating rod to break, which often leads to difficult operation, long operating time, seriously affects the power-off time, and threatens ergonomics. At the same time, it is necessary to use a crane to assist personnel to mount it. The cost of renting a crane is high, and it is difficult to control the safe distance between the boom and the live equipment, and there is a certain degree of operational risk.

Contents of the invention

The purpose of the present invention is to provide a hooking device and method for a high-voltage level temporary grounding wire, which overcomes the defects of high cost, difficult operation, long operation time and high operation risk in the existing hooking scheme.

For reaching this purpose, the present invention adopts following technical scheme:

A hooking device for a high-voltage level temporary grounding wire, comprising: a first insulating rope, a pulley mechanism, a second insulating rope and an operating rod;

The tail end of the first insulating rope is connected to the pulley mechanism;

The pulley mechanism includes a circular wheel that can rotate around a central axis;

The second insulating rope is wound on the circumferential surface of the round wheel of the pulley mechanism, and the tail end of the second insulating rope is connected to the operating rod;

The operating rod includes an insulating rod, and the top of the insulating rod is connected to a grounding clamp of a temporary grounding wire;

The length of the first insulating rope is not less than the height from the wire to be clamped to the ground; the length of the second insulating rope is not less than twice the height from the wire to be clamped to the ground.

Optionally, the hooking device further includes a string, a head end of the string is tied with a weight, and a tail end of the string is connected to the head end of the first insulating rope.

Optionally, the length of the string is not less than twice the height from the wire to be clamped to the ground.

Optionally, the operating rod includes a plurality of insulating rods that can be sequentially assembled and connected.

Optionally, the hooking device further includes at least one pair of insulating pillars, each pair of insulating pillars is used to support the wire to be clamped during the hooking operation.

Optionally, the weight is an electroscope pen.

A method for hooking up a high-voltage level temporary grounding wire, which is realized by using any one of the above-mentioned hooking devices, including steps:

Lift the pulley mechanism to a designated height position adjacent to the wire to be clamped by crossing the first insulating rope of the wire to be clamped;

pulling the head end of the second insulating rope around the pulley mechanism to lift the operating rod connected to the tail end of the second insulating rope;

When the grounding wire clamp of the operating rod is equal to the height of the wire to be clamped, the grounding wire clamp is controlled to clamp the wire to be clamped.

Optionally, lifting the pulley mechanism to a specified height position close to the wire to be clamped by crossing the first insulating rope of the wire to be clamped includes:

connecting the head end of the first insulating rope to the tail end of a string, and attaching a weight to the head end of the string;

Cross the upper end of the wire to be clamped by the thin rope, so that the head end of the thin rope naturally descends under the gravity of the weight;

When the head end of the first insulating rope is pulled down to the ground by the string, pull the head end of the first insulating rope to lift the pulley mechanism connected to the tail end of the first insulating rope;

When the pulley mechanism is lifted to a designated height position close to the wire to be clamped, the head end of the first insulating rope is fixed to the ground pile.

Optionally, the hooking method further includes: during the process of pulling the head end of the second insulating rope that goes around the pulley mechanism to lift the operating rod connected to the tail end of the second insulating rope, during the operation An insulating rod is installed on the bottom of the rod until the total length of the operating rod is equal to the height of the wire to be clamped.

Optionally, in the hooking method, the head end of the second insulating rope is pulled by an automatic pulling mechanism.

Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

It is realized by using the mechanical characteristics of the one-way transmission of the pulley, which makes the whole hooking process simple and efficient, without the need for auxiliary tools, and will not cause irreversible mechanical damage to the equipment, greatly reducing the operation and maintenance costs; the operation space occupied is small, It can effectively ensure that the operating tools keep a safe distance from nearby live equipment, greatly reducing the risk of action; the short operation time minimizes the power-off time of the power-off maintenance equipment and improves the man-machine efficiency; it is universal and can be widely used on different types of devices.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings on the premise of not paying creative efforts.

Fig. 1 is a flowchart of a method for hooking up a high-voltage level temporary grounding wire provided by an embodiment of the present invention.

FIG. 2 to FIG. 7 are schematic diagrams of various hooking operation processes provided by the embodiments of the present invention.

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following 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.

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

This embodiment provides a hooking device for a high-voltage temporary grounding wire, which mainly includes: a string ①, a first insulating rope ②, a pulley mechanism ⑤, a second insulating rope ③ and an operating rod ④.

Wherein, the head end of the thin rope ① is tied with a weight, and the tail end is connected to the head end of the first insulating rope ②; the tail end of the first insulating rope ② is connected to the pulley mechanism ⑤.

The pulley mechanism ⑤ includes a round wheel that can rotate around the central axis, and the second insulating rope ③ is wound on the circumferential surface of the round wheel. Meanwhile, the tail end of the second insulating rope ③ is connected to the operating rod ④.

The operating rod ④ includes a grounding clamp on the top and a plurality of insulating rods that can be sequentially assembled and connected.

In addition, the hooking device also includes at least one pair of insulating pillars, each pair of insulating pillars is used to support the wire to be clamped during the hooking operation, so as to avoid the occurrence of excessive traction force on the wire to be clamped during the hooking operation. damage.

When carrying out the hanger operation, first cross the string ① over the upper end of the wire to be clamped. Since the head end of the string ① is tied with a heavy object, the head end of the string ① will naturally droop to the ground under the action of gravity, and at the same time pass the first end of the string ① to the ground. An insulating rope ② pulls the sliding mechanism to rise; when the sliding mechanism rises to the specified height position close to the wire to be clamped, fix the head end of the first insulating rope ② on the ground pile, so that the sliding mechanism remains at the current height position; Then, the head end of the second insulating rope ③ is pulled down, and the rotation of the round wheel of the sliding mechanism is used to lift the operating rod ④ tied to the tail end of the second insulating rope ③; during the lifting process of the operating rod ④, the operating rod ④ Install insulating rods as needed at the bottom of the operating rod ④ to increase the overall length of the operating rod ④ until the grounding wire clamp on the top of the operating rod ④ is equal to the height of the wire to be clamped, then clamp the grounding wire clamp to the wire to be clamped, and complete the temporary wire connection of the mount.

Referring to Fig. 1, this embodiment also provides a hooking method implemented by using the above-mentioned hooking device, including steps:

Step 101, cross the upper end of the wire to be clamped with the thin rope ① tied with a weight at the head end, so that the two ends of the thin rope ① are separated from the two sides of the wire to be clamped.

As shown in Figure 2, the heavy object tied to the head end of the string ① can be an object with a certain weight such as an electroscope pen, and its function is to drive the head end of the string ① to move downward naturally under the action of gravity.

After the string ① crosses the upper end of the wire to be clamped, under the gravity of the weight, the head end of the string ① will naturally drop to the ground.

The length of the string ① is not less than a first preset length, and the first preset length may be twice the height from the wire to be clamped to the ground. When the head end of the string ① hangs down to the ground naturally, the tail end of the string ① is still on the ground or at a lower position from the ground, which is convenient for the staff to operate the tail end of the string ①.

Step 102, as shown in Figure 3, after the head end of the string ① hangs down to the ground, connect the tail end of the string ① to the head end of the first insulating rope ②, and fix the pulley at the tail end of the first insulating rope ② Mechanism ⑤, on the pulley mechanism ⑤, the second insulating rope ③ is worn, and the tail end of the second insulating rope ③ is connected with the operating rod ④ fixed with the temporary grounding wire.

Wherein, the first insulating rope ② is connected between the tail end of the thin rope ① and the pulley mechanism ⑤, and its length is a second preset length, and the second preset length is not less than the distance from the wire to be clamped to the height of the ground.

The second insulating rope ③ is passed on the pulley mechanism ⑤, and its head end will be used as the traction end of the staff, and the tail end is used to connect the operating rod ④. The length of the second insulating rope ③ is the third preset length, and the third preset length can be twice the height of the wire to be clamped to the ground, so that the pulley mechanism ⑤ reaches the height position of the wire to be clamped in the second The head end and the tail end of insulating rope ③ all are positioned at the lower position close to the ground, to facilitate the staff to operate at the head end and the tail end respectively.

Step 103, pull the head end of the thin rope ①, drive the pulley mechanism ⑤ to rise through the first insulating rope ②, until the pulley mechanism ⑤ rises to the specified height position close to the wire to be clamped, as shown in Figure 4;

When the pulley mechanism ⑤ rises to the specified height position, the head end of the first insulating rope ② will also reach the ground position. At this time, the head end of the first insulating rope ② is fixed to the ground pile, as shown in Figure 5, so that the pulley Mechanism ⑤ is kept at the designated height position.

In addition, when the pulley mechanism ⑤ rises to the designated height position, the head end and tail end of the second insulating rope ③ will still be located near the ground.

Step 104, pulling the head end of the second insulating rope ③, using the mechanical characteristics of the one-way transmission of the pulley mechanism ⑤, the second insulating rope ③ pulls the operating rod ④ fixed at its tail end to rise, as shown in Figure 6, so that the operating rod ④ Lift the temporary grounding wire on the top until the grounding wire clip on the temporary grounding wire is equal to the height of the wire to be clamped, then clamp the grounding wire clamp to the wire to be clamped, as shown in Figure 7.

Wherein, the operating rod ④ includes a grounding clamp on the top and a plurality of insulating rods that can be sequentially assembled and connected. The actual application quantity of insulating rods can be determined according to the height of the wires to be clamped under the current environment. Therefore, the overall length of the operating rod ④ is adjustable, which can meet the use requirements of wires to be clamped at different heights, and has high universality.

During the operation, two people can work together, one person pulls the head end of the second insulating rope ③, and the other person lifts the temporary grounding wire while installing an insulating rod as needed until the length of the entire operating rod ④ is equal to the height of the wire to be clamped .

Of course, an automatic pulling mechanism can also be used to pull the second insulating rope ③, replacing the manual pulling method, improving efficiency and reducing labor costs.

In the above method, two insulating ropes and one pulley can be used to complete the hooking of the temporary grounding wire. Compared with the traditional crane-assisted hooking method, it has the following obvious advantages:

It is realized by using the mechanical characteristics of the one-way transmission of the pulley, which makes the whole hooking process simple and efficient, without the need for auxiliary tools, and will not cause irreversible mechanical damage to the equipment, greatly reducing the operation and maintenance costs; the operation space occupied is small, It can effectively ensure that the operating tools keep a safe distance from nearby live equipment, greatly reducing the risk of action; the short operation time minimizes the power-off time of the power-off maintenance equipment and improves the man-machine efficiency; it is universal and can be widely used on different types of devices.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A hooking device of a high-voltage level temporary grounding wire; it is characterized in that, the hooking device includes: a first insulating rope, a pulley mechanism, a second insulating rope and an operating rod; The tail end of the first insulating rope is connected to the pulley mechanism; The pulley mechanism includes a circular wheel that can rotate around a central axis; The second insulating rope is wound on the circumferential surface of the round wheel of the pulley mechanism, and the tail end of the second insulating rope is connected to the operating rod; The operating rod includes an insulating rod, and the top of the insulating rod is connected to a grounding clamp of a temporary grounding wire; The length of the first insulating rope is not less than the height from the wire to be clamped to the ground; the length of the second insulating rope is not less than twice the height from the wire to be clamped to the ground. 2. The hooking device of the high-voltage level temporary grounding wire according to claim 1, wherein the hooking device also includes a string, and the head end of the string is tied with a weight, and the string The tail end of is connected to the head end of the first insulating rope. 3 . The hooking device for high-voltage temporary grounding wires according to claim 2 , wherein the length of the string is not less than twice the height of the wire to be clamped to the ground. 4 . 4 . The hooking device for high-voltage temporary grounding wires according to claim 1 , wherein the operating rod includes a plurality of insulating rods that can be assembled and connected in sequence. 5. The hooking device of high voltage level temporary grounding wire according to claim 1, characterized in that, said hooking device also comprises at least one pair of insulating posts, each pair of insulating posts is used to connect The wire to be clamped is supported. 6. The hooking device of high-voltage level temporary grounding wire according to claim 2, wherein the weight is an electroscope pen. 7. A method for attaching a high-voltage level temporary grounding wire, characterized in that, the method for attaching is implemented using the attaching device described in any one of claims 1 to 6, comprising the steps of: Lift the pulley mechanism to a designated height position adjacent to the wire to be clamped by crossing the first insulating rope of the wire to be clamped; pulling the head end of the second insulating rope around the pulley mechanism to lift the operating rod connected to the tail end of the second insulating rope; When the grounding wire clamp of the operating rod is equal to the height of the wire to be clamped, the grounding wire clamp is controlled to clamp the wire to be clamped. 8. The method for attaching a high-voltage level temporary grounding wire according to claim 7, wherein the pulley mechanism is lifted to a specified height close to the wire to be clamped by passing the first insulating rope across the wire to be clamped location, including: connecting the head end of the first insulating rope to the tail end of a string, and attaching a weight to the head end of the string; Cross the upper end of the wire to be clamped by the thin rope, so that the head end of the thin rope naturally descends under the gravity of the weight; When the head end of the first insulating rope is pulled down to the ground by the string, pull the head end of the first insulating rope to lift the pulley mechanism connected to the tail end of the first insulating rope; When the pulley mechanism is lifted to a designated height position close to the wire to be clamped, the head end of the first insulating rope is fixed to the ground pile. 9. The hooking method of the high-voltage level temporary grounding wire according to claim 7, characterized in that, the hooking method further comprises: at the first end of the second insulating rope that is pulled around the pulley mechanism, with During the process of lifting the operating rod connected to the tail end of the second insulating rope, an insulating rod is installed at the bottom of the operating rod until the total length of the operating rod is equal to the height of the wire to be clamped. 10 . The method for hooking a high-voltage level temporary ground wire according to claim 7 , wherein, in the hooking method, an automatic pulling mechanism is used to pull the head end of the second insulating rope. 11 .