CN210779814U - Arc extinction pulley for ground potential dismantling and overlapping 35-110kV no-load line drainage wire bus and overhead wire - Google Patents

Abstract

The utility model discloses an arc-suppressing pulley for disassembling and attaching a 35-110kV no-load line drain line busbar and an overhead line at ground potential, and aims to provide an arc-suppressing pulley that is convenient to use. It includes a main frame, a pressing lock and a pulley; one side of the main frame is provided with a card slot, and the upper end surface of the inner wall of the card slot is a curved surface consistent with the surface of the busbar; the upper end of the main frame is provided with a The lower end of the main frame is provided with a connecting frame; the pulley is rotatably mounted on the connecting frame; the pressing lock includes a blocking rod hinged with the opening at the upper end of the card slot, and is integral with the blocking rod and has a lower end surface in the shape of a retaining rod. The locking rod with the curved surface consistent with the surface of the busbar; the locking rod protrudes toward the bottom of the card slot; when the lower end face of the locking rod coincides with the upper end face of the inner wall of the card slot, the lower end of the blocking rod is in line with the bottom of the card slot. The opening at the lower end is overlapped to achieve locking. The utility model is suitable for the maintenance and use of the ground potential dismantling and erecting the busbars and overhead conductors of the 35-110kV no-load lines.

Description

Ground Potential Dismantling and Arc Suppression of Drainage Busbar and Overhead Line of 35-110kV No-load Line pulley

technical field

The utility model relates to the technical field of power grid maintenance equipment, in particular to an arc-extinguishing pulley for dismantling and attaching a drain line busbar and an overhead line of a 35-110kV no-load line at ground potential.

Background technique

At present, in the power network structure of Kunming area, 35-110kV power supply network is widely used in the county, township, town and factory level for power supply, and most of them use one-line multi-T radiation type power supply, especially in most counties and townships 35kV is used for power supply. Single power supply has one-line multi-T radiation type power supply, and there is also one-line multi-T radiation type power supply phenomenon in urban 110kV. Due to the heavy task of ensuring power supply, the safe and stable operation of the power grid is seriously affected.

In the past, most of the 35kV-110kV lines were dismantled and drained by means of power outages. The power outage area was wide and the operating range was large, which seriously affected the number of households and line availability during power outages. Since the development of live operation, the operation methods are nothing more than three methods: ground potential, equipotential and intermediate potential. However, due to the constraints of terrain, voltage level, line structure, insulating materials and other factors, each method has its own limitations. . In 2016, the Gejiu Power Supply Bureau has successfully used the insulating glove method to carry out the dismantling and erection of the drainage lines of 35kV no-load lines, but it is still restricted by factors such as topography, topography and traffic, and cannot be fully carried out.

At present, in the method of using ground potential to remove and build the drain line of 35-110kV no-load line, when ground potential is used to remove the busbar and overhead conductor of 35-110kV no-load line, because there is no special tool, it is necessary to use temporary over-lead to carry out The installation of the arc suppression rope and the disassembly and assembly of the lead wire are very inconvenient, which makes the disassembly and assembly of the arc suppression rope very difficult, which in turn leads to low maintenance efficiency.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art, and to provide a 35-110kV no-load line drain line busbar and overhead line that can improve the disassembly and assembly speed of the arc-extinguishing rope and is reliable in connection with the ground potential. Arc tackle.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

Arc-suppression pulley for ground potential dismantling and building of 35-110kV no-load line drainage busbar and overhead line, including main frame, pressing lock and pulley; one side of the main frame is provided with a slot, and the upper part of the inner wall of the slot is The end surface is a curved surface consistent with the surface of the busbar; the upper end of the main frame is provided with a lifting ring; the lower end of the main frame is provided with a connecting frame; the pulley is rotatably installed on the connecting frame; the pressing lock includes A blocking rod hinged at the opening of the upper end of the card slot, and a locking rod integral with the blocking rod, and the lower end surface is a curved surface consistent with the surface of the busbar; the locking rod protrudes toward the bottom of the card groove; When overlapping with the upper end surface of the inner wall of the clamping slot, the lower end of the blocking rod overlaps with the opening of the lower end of the clamping slot to realize locking.

Preferably, a reinforcing rib is provided at the edge of the card slot.

Preferably, the locking rod is in two symmetrical parts, and the two parts are respectively located on both sides of the main frame.

Preferably, the main frame is provided with a slot hole through which the lock lever swings.

Preferably, the hoisting ring and the main frame are one piece.

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

When the utility model is used, the arc suppression pulley is installed on the overhead line of the transmission line through the operating rod, and the arc suppression rope is connected to the lower end, which is then used to control the drainage line; Easy and fast disassembly and assembly, and reliable and stable connection. This tool can not only dismantle and build the drainage line on the 35-110kV overhead transmission line, but also can carry out the dismantling and erection of the drainage line in the 35-110kV substation.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a schematic structural diagram of the utility model, wherein the pressing lock is in a closed and locked state.

FIG. 2 is a schematic structural diagram of the pressing lock in FIG. 1 in an open state.

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 only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. In the following description, in order to clearly show the structure and working mode of the present invention, the drawings will be used as a reference to describe with the help of many directional words, but "front", "rear", "left" and "right" should be used for description. , "上", "下" and other words are understood as convenient terms, and should not be understood as limiting words.

As shown in Figure 1-2, the arc suppression pulley for dismantling and building the drain line busbar and overhead line of 35-110kV no-load line includes a main frame 1, a pressing lock 2 and a pulley 3; one side of the main frame 1 is provided with Card slot 4, the upper end surface of the inner wall of the card slot 4 is a curved surface consistent with the surface of the busbar; the upper end of the main frame 1 is provided with a lifting ring 5; the lower end of the main frame 1 is provided with a connecting frame 6; The pulley 3 is rotatably installed on the connecting frame 6, and can be installed with a pin; the pressing lock 2 includes a blocking rod 7 hinged to the opening of the upper end of the card slot 4, and is integrated with the blocking rod 7, and the lower end surface is in the same shape as the blocking rod 7. The locking bar 8 with the same curved surface on the busbar; the locking bar 8 protrudes toward the bottom of the card slot 4; The lower end overlaps with the opening of the lower end of the card slot 4 to achieve locking.

In this embodiment, a reinforcing rib (not shown in the figure) is provided at the edge of the card slot 4 , which can improve the strength of the main frame 1 . The locking rod 8 is made of two symmetrical parts, and the two parts are located on both sides of the main frame 1 respectively. This structure can ensure the stability of the rotation of the pressing lock 2 . Of course, a slot hole through which the locking rod 8 swings can also be provided at the middle of the main frame 1 (this structure is not shown in the figure). The lifting ring 5 and the main frame 1 are one piece, and obviously can also be assembled after being manufactured separately.

The function description of each component is as follows:

1. Lifting ring: when in use, use a hook to hang the arc suppression pulley to the overhead line conductor and the hanging piece on the substation tubular busbar;

2. Pulley: It is a small wheel with a groove around the periphery and can rotate around an axis. For winding arc extinguishing rope;

3. Main frame: C-shaped frame body made of aluminum alloy;

4. Compression lock: Made of high-strength aluminum alloy, it is a device to prevent the wires and tubular busbars from slipping out. When the hanging ring is hung with a hook, the compression lock will open naturally due to the action of gravity. When the wire and the tubular busbar are stuck in the slot, when the staff pulls the arc suppression rope installed in the pulley below, the pressing lock is naturally closed by force to prevent the wire and the tubular busbar from slipping out.

5. Card slot: hang on the wire and tubular busbar when working.

The arc suppression pulley and the drainage line are connected by the arc suppression rope clamp, and used together to form a combined tool; when the arc suppression pulley is connected with the wire or the bus bar, the arc suppression pulley can be installed on the overhead line of the transmission line by clamping the connecting frame through the operating rod; The arc suppression rope is used to connect the drainage wire and the wire. The insulated end of the arc suppression rope is passed through the pulley of the arc suppression pulley. The drainage wire clamp and the copper terminal of the arc suppression rope are firmly fixed. The crew quickly pulled the wire away, eliminating arcing when live lines were unwound. In this way, the ground potential method is used effectively and quickly to carry out the operation of removing and building the drainage line of 35-110kV no-load lines, which solves the current situation that the operation can only be carried out by the equipotential method.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. For those skilled in the art, any modifications, equivalent replacements and improvements made to the technical solutions or part of the technical features described in the above-mentioned specific embodiments within the spirit and principles of the present invention shall include within the scope of protection of the present invention.

Claims (5)

1. The arc suppression pulley of 35-110kV no-load line drain line busbar and overhead line is disassembled at ground potential, it is characterized in that: comprise main frame, press lock buckle and pulley; The upper end surface of the inner wall of the card slot is a curved surface consistent with the surface of the busbar; the upper end of the main frame is provided with a lifting ring; the lower end of the main frame is provided with a connecting frame; the pulley is rotatably installed on the connecting frame; The pressing lock includes a blocking rod hinged at the opening of the upper end of the card slot, and a locking rod integrated with the blocking rod, and the lower end surface is a curved surface consistent with the surface of the busbar; the locking rod extends toward the bottom of the card groove. ; When the lower end face of the locking rod coincides with the upper end face of the inner wall of the clamping slot, the lower end of the blocking rod overlaps with the opening of the lower end of the clamping slot to realize locking. 2 . The arc suppression pulley of claim 1 , wherein the ground potential disassembles and builds a 35-110kV no-load line drain line busbar and an overhead line, wherein a reinforcing rib is provided at the edge of the slot. 3. according to the described ground potential of claim 1 or 2, the arc suppression pulley of 35-110kV no-load line drain line busbar and overhead line is dismantled, characterized in that: the locking rod is two symmetrical parts, and the two parts are respectively located in the main frame on both sides. 4. The arc-extinguishing pulley for dismantling and building 35-110kV no-load line drain line busbar and overhead line according to claim 1 or 2, characterized in that: the main frame is provided with a slot hole for the lock lever to swing through. . 5. The arc suppression pulley for disassembling and building 35-110kV no-load line drain busbars and overhead lines according to claim 1 or 2, characterized in that: the hoisting ring and the main frame are one piece.

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