CN113433422B - Device for positioning power distribution network line fault - Google Patents

Abstract

The embodiment of the present invention relates to the technical field of power fault detection, and in particular to a device for fault location of distribution network lines, which is used for fault location of distribution network lines, including a frame body and a connecting plate, and a device adjacent to the frame body The connection between them is connected by a connecting plate, and the connecting plate is also provided with a detection mechanism, which also includes: a walking mechanism; Between the traveling mechanism, and through the traveling mechanism to drive the whole device to move on the grid line; and the limit mechanism, the limit mechanism is set on the frame, and is used to limit the two sides of the wire when the device is walking. In the present invention, the wires are arranged between the running mechanism and the lifting mechanism in the frame, so that the device can be hung on the wires, and the two sides of the wires can also be limited by the limit mechanism to prevent the wires from moving between the running mechanism and the lifting mechanism. The time is separated, the use effect is better.

Description

A device for fault location of distribution network lines

technical field

The invention relates to the technical field of power fault detection, in particular to a device for fault location of distribution network lines.

Background technique

The distribution network is composed of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators and some auxiliary facilities. It plays an important role in distributing electric energy in the power network. When the distribution network line fails A fault location device is required for detection.

At present, the existing fault detection method is mainly to hang the detection mechanism on the cable, and move the detection mechanism on the cable to realize the detection of the cable segment by segment, but during the movement of the device, once the cable shakes, the device It is easy to drop, therefore, there is an urgent need to design a device for fault location of distribution network lines to solve the above problems.

Contents of the invention

The purpose of the embodiments of the present invention is to propose a device for locating faults in distribution network lines in order to solve the shortcomings in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A device for fault location of distribution network lines, comprising a frame body and a connecting plate, adjacent frames are connected through a connecting plate, and a detection mechanism is also arranged on the connecting plate, and further includes:

a running mechanism, the running mechanism is arranged in the frame; and

Lifting mechanism, the lifting mechanism is arranged in the frame, used to limit the power grid line between the lifting mechanism and the running mechanism, and drive the whole device to move on the power grid through the running mechanism; and

A limit mechanism, the limit mechanism is arranged on the frame body, and is used to limit both sides of the electric wire when the device is running.

As a further solution of the embodiment of the present invention: the walking mechanism includes a mounting frame, a rotating shaft is arranged for rotation in the mounting frame, and a roller is arranged on the rotating shaft; and

The drive assembly is used to drive the rollers to rotate.

As a further solution of the embodiment of the present invention: the driving assembly includes a driving member, the driving member is arranged on the frame body, and the output shaft end of the driving member is provided with a driving member, and the rotating shaft is also provided with a driven member , and the driven part and the driving part are connected through a transmission part.

As a further solution of the embodiment of the present invention: the frame body is provided with a protective cover, and the driving part is located in the protective cover.

As a further solution of the embodiment of the present invention: the lifting mechanism includes a supporting plate, a movable rod is provided through the frame body, and the supporting plate is arranged at the end of the movable rod, and an elastic piece two.

As a further solution of the embodiment of the present invention: a wire routing groove is opened on the supporting plate, and a plurality of rolling parts are arranged on the inner wall of the wire routing groove.

As a further solution of an embodiment of the present invention: the detection mechanism includes a fixing frame, the fixing frame is arranged on the connecting plate, and a current detection member is arranged in the fixing frame.

As a further solution of the embodiment of the present invention: the limit mechanism includes a mounting cylinder arranged on one side of the frame, a telescopic rod is installed through the end of the mounting cylinder, and the movable block at one end of the telescopic rod is slidably arranged on the installation In the tube, the other end of the telescopic rod is provided with a mounting plate, and the mounting plate is provided with a movable plate that penetrates the frame. The number of movable plates is two, and one side of the two movable plates is oppositely provided with a limit block , the installation plate is connected to the frame body through an elastic member, and a support member is also provided inside the installation cylinder.

Compared with prior art, the beneficial effect of the present invention is:

The present invention provides a device for fault location of distribution network lines. The device can be hung on the wire by setting the wire between the running mechanism and the lifting mechanism in the frame, and then the device can be driven by the running mechanism. Walking on the wire, the wire can be checked through the detection mechanism on the connection board. When a special frequency signal is detected, it indicates that the line from the signal output end to the device position is normal. When the special frequency signal cannot be detected or When the amplitude, phase or frequency of the special frequency signal is abnormal, it indicates that there is a fault between the last test position and this test position, and it is necessary to continue to check until the fault position is located. During the movement of the device, Both sides of the electric wire can also be limited by the limit mechanism to prevent the electric wire from detaching from between the traveling mechanism and the lifting mechanism, and the use effect is better.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a device for fault location of distribution network lines provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of a frame side view structure of a device for fault location of a distribution network line provided by an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a lifting mechanism of a device for fault location of a distribution network line provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a detection mechanism of a device for fault location of distribution network lines provided by an embodiment of the present invention.

In the figure: 1-Frame body, 2-Installation cylinder, 3-Connection plate, 4-Installation plate, 5-Telescopic rod, 6-Active rod, 7-Current detection part, 8-Fixer, 9-Support, 10 -movable block, 11-elastic piece 1, 12-movable plate, 13-limiting block, 14-rotating shaft, 15-roller, 16-follower, 17-driving piece, 18-driving piece, 19-transmission piece, 20-protective cover, 21-elastic part two, 22-supporting plate, 23-rolling part.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions. The embodiments described below by referring to the figures are exemplary and are only used for explaining the patent, and should not be construed as limiting the patent.

In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting , can also be detachably connected and set, or integrally connected and set. Those of ordinary skill in the art can understand the specific meanings of the above terms in this patent according to specific situations.

As shown in Figures 1 and 2, a device for fault location of distribution network lines provided by an embodiment of the present invention includes a frame body 1 and a connecting plate 3, and a connecting plate is passed between adjacent frames 1 3 connection, the connection board 3 is also provided with a detection mechanism, which also includes:

a running mechanism, the running mechanism is arranged in the frame body 1; and

The lifting mechanism, the lifting mechanism is arranged in the frame body 1, and is used to limit the grid line between the lifting mechanism and the running mechanism, and drives the device to move on the grid line as a whole through the running mechanism; and

Limiting mechanism, the limiting mechanism is arranged on the frame body 1, and is used for limiting both sides of the electric wire when the device is running.

By arranging the wires between the running mechanism and the lifting mechanism in the frame body 1, the device can be hung on the wires, and then the running mechanism can drive the device to walk on the wires, and the detection mechanism on the connecting plate 3 can Check the wires. When a special frequency signal is detected, it indicates that the line from the signal output end to the device is normal. When the special frequency signal cannot be detected or the amplitude, phase or frequency of the special frequency signal is abnormal, it indicates that There is a fault between the last test position and this test position, and it is necessary to continue to check until the fault position is located. During the movement of the device, the limit mechanism can also limit the two sides of the wire to prevent The electric wire is separated from between the traveling mechanism and the lifting mechanism, and the use effect is better.

As an embodiment of the present invention, please refer to Fig. 2, the walking mechanism includes a mounting frame, and a rotating shaft 14 is arranged to rotate in the mounting frame, and a roller 15 is arranged on the rotating shaft 14. In this embodiment, preferably, the outer side of the roller 15 is set has a ring groove so that the wire can be snapped into the ring groove; and

The driving assembly is used to drive the roller 15 to rotate.

As an embodiment of the present invention, referring to Fig. 2, the driving assembly includes a driving part 17, which can be a stepper motor, a servo motor, etc., in this embodiment, preferably, the driving part 17 adopts a servo motor, and drives Part 17 is arranged on the frame body 1, and one end of the output shaft of the driving part 17 is provided with a driving part 18, and a driven part 16 is also provided on the rotating shaft 14, and the transmission part 19 transmits between the driven part 16 and the driving part 18. connection, the transmission member 19 can be a crawler belt, a transmission belt, etc. In this embodiment, preferably, the transmission member 19 adopts a crawler belt, and the specific structure of the active member 18 and the driven member 16 is not limited. In this embodiment, preferably, the active Part 18 and driven part 16 adopt driving gear and driven gear respectively, can drive driving gear to rotate by driving part 17, and driving gear drives driven gear to rotate by transmission part 19, just can make the roller 15 on the rotating shaft 14 rotate, realize Device movement.

As an embodiment of the present invention, please refer to FIG. 2 , a protective cover 20 is arranged on the frame body 1, and the driver 17 is located in the protective cover 20. The protective cover 20 can protect the driver 17 to avoid eroded by rainwater.

As an embodiment of the present invention, please refer to FIG. 2 and FIG. 3 , the lifting mechanism includes a supporting plate 22, the frame body 1 is penetrated with a movable rod 6, and the supporting plate 22 is arranged at the end of the movable rod 6, and the movable The outer side of the bar 6 is provided with an elastic part two 21, which can be a shrapnel, a spring, etc. In this embodiment, preferably, the elastic part two 21 adopts a spring. contact, and move the frame body 1 upwards, so that the second elastic member 21 is compressed, and at this time, the distance between the supporting plate 22 and the roller 15 increases, and the device can be moved laterally, so that the electric wire is located between the roller 15 and the supporting plate 22, The fixing of the electric wires can be realized, and the structure is convenient for fixing the electric wires of different sizes, and the use is more flexible.

As an embodiment of the present invention, please refer to Fig. 3, there is a wiring groove on the supporting plate 22, and a plurality of rolling elements 23 are arranged on the inner wall of the wiring groove, and the specific structure of the rolling elements 23 is not limited. In an example, preferably, the rolling member 23 adopts a ball, and when the electric wire moves in the wire groove, the rolling member 23 can assist the electric wire to move and make the moving process more smooth.

As an embodiment of the present invention, please refer to Fig. 2 and Fig. 4, the detection mechanism includes a fixed frame 8, the fixed frame 8 is arranged on the connecting plate 3, and the current detection part 7 is arranged in the fixed frame 8, the current detection part 7 The specific structure is not limited. In this embodiment, preferably, the current detecting element 7 adopts a current transformer.

As an embodiment of the present invention, please refer to Fig. 2, the limit mechanism includes an installation cylinder 2 arranged on one side of the frame body 1, and a telescopic rod 5 is provided through the end of the installation cylinder 2, and the movable end of the telescopic rod 5 The block 10 is slidably arranged in the installation tube 2, the other end of the telescopic rod 5 is provided with a mounting plate 4, and the mounting plate 4 is provided with a movable plate 12 penetrating through the frame body 1, the number of the movable plates 12 is two, two One side of the movable plate 12 is relatively provided with a limit block 13, and the installation plate 4 and the frame body 1 are connected by an elastic member 11. The specific structure of the elastic member 11 is not limited, and can be a spring, a shrapnel, etc., in this embodiment Among them, preferably, the elastic member 11 adopts a spring, and the inside of the installation cylinder 2 is also provided with a support member 9. The specific structure of the support member 9 is not limited. In this embodiment, preferably, the support member 9 adopts an insulating rod. The support piece 9 is inserted into the installation cylinder 2, the frame body 1 can be lifted, and during the lifting process, under the gravity of the device, the movable block 10 will be lifted up, so that the installation plate 4 drives the limiter on the movable plate 12. The bit block 13 is removed, and the elastic member 11 is stretched at the same time, so that the electric wire is stuck in the roller 15. When the frame body 1 is hung on the electric wire, when the support member 9 is removed, the elastic member 11 is reset, so that the limit The block 13 is moved to both sides of the electric wire, which can prevent the electric wire from falling off, is more stable, and has a better use effect.

When in use, the device can be hung on the wire by setting the wire between the running mechanism and the lifting mechanism in the frame body 1, and then the device can be driven to walk on the wire through the running mechanism. The mechanism can check the wires. When a special frequency signal is detected, it indicates that the line from the signal output end to the device position is normal. When the special frequency signal cannot be detected or the amplitude, phase or frequency of the special frequency signal is abnormal , it indicates that there is a fault between the last test position and this test position, and it is necessary to continue to check until the fault position is located. Restricted to prevent wires from detaching from between the traveling mechanism and the lifting mechanism.

It should be noted that although this description is described in terms of implementations, not every implementation includes only an independent technical solution. This description of the description is only for clarity, and those skilled in the art should regard the description as a On the whole, the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art. The above-mentioned embodiments only express the preferred implementation of the technical solution, and its description is more specific and detailed. However, it should not be interpreted as a limitation on the patent scope of the technical solution. It should be noted that those skilled in the art can make some modifications, improvements and substitutions without departing from the concept of the present application, and these all belong to the protection scope of the technical solution.

Claims (7)

1. A device for fault location of a distribution network line, comprising a frame and a connecting plate, adjacent frames are connected by a connecting plate, characterized in that a detection mechanism is also arranged on the connecting plate, Also includes: a running mechanism, the running mechanism is arranged in the frame; and Lifting mechanism, the lifting mechanism is arranged in the frame, used to limit the power grid line between the lifting mechanism and the running mechanism, and drive the whole device to move on the power grid through the running mechanism; and A limit mechanism, the limit mechanism is arranged on the frame body, and is used to limit the two sides of the wire when the device is walking. A telescopic rod is provided through the upper part, and the movable block at one end of the telescopic rod is slidably arranged in the installation tube, the other end of the telescopic rod is provided with a mounting plate, and the mounting plate is provided with a movable plate penetrating through the frame, the number of movable plates There are two, and one side of the two movable plates is oppositely provided with a limit block, the installation plate and the frame are connected by an elastic member, and a support member is provided inside the installation cylinder. 2. A device for fault location of distribution network lines according to claim 1, characterized in that, the traveling mechanism includes a mounting frame, and a rotating shaft is provided for rotation in the mounting frame, and a rotating shaft is provided on the rotating shaft scroll wheel; and The drive assembly is used to drive the rollers to rotate. 3. A device for fault location of distribution network lines according to claim 2, characterized in that, the drive assembly includes a driver, the driver is arranged on the frame, and the output shaft of the driver A driving part is arranged at one end, and a driven part is also arranged on the rotating shaft, and the driven part and the driving part are connected by transmission through a transmission part. 4 . The device for locating faults in distribution network lines according to claim 3 , wherein a protective cover is arranged on the frame body, and the driving member is located in the protective cover. 5 . 5. A device for fault location of distribution network lines according to claim 1, characterized in that, the lifting mechanism includes a supporting plate, a movable rod is provided through the frame, and the supporting plate is set At the end of the movable rod, an elastic member 2 is arranged on the outer side of the movable rod. 6 . The device for locating faults in distribution network lines according to claim 5 , wherein a wiring trough is formed on the supporting plate, and a plurality of rolling parts are arranged on the inner wall of the wiring trough. 7 . 7. A device for fault location of distribution network lines according to claim 1, characterized in that, the detection mechanism includes a fixed frame, the fixed frame is arranged on the connecting plate, and the fixed frame is provided with Current detection parts.

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