1. A device for detecting the state of a ring main unit by using a sensor is characterized by comprising the ring main unit, an infrared sensor and a first controller, wherein an insulator is arranged in the ring main unit, the insulator is sleeved with a ring, the infrared sensor is installed on the ring through a connecting rod, a plurality of installation frames are arranged on the inner side of the ring, the installation frames are connected with the ring through springs, opposite spherical grooves are arranged on the inner sides of the installation frames, rolling balls are arranged between the two spherical grooves, a plurality of uniformly distributed first magnets are arranged in the rolling balls, a first motor and a second motor are arranged on the installation frames, the output shaft of the first motor is tangent to the circumferential direction of the ring, the second motor is parallel to the axial direction of the ring, second magnets which attract the first magnets are arranged on the output shafts of the first motor and the second motor, and the first magnets are driven to rotate when the second magnets rotate, thereby drive the spin and rotate, infrared sensor, first motor and second motor respectively with first controller signal connection.

2. The device for detecting the state of the ring main unit by using the sensor as claimed in claim 1, wherein the rolling ball is made of a non-metal material, and an anti-slip layer is arranged on the surface of the rolling ball.

3. The device for detecting the state of a ring main unit by using a sensor as claimed in claim 1, wherein the mounting frame is provided with a sliding rod, the ring is provided with a sleeve, the sliding rod is slidably connected with the sleeve, the sliding sleeve is internally provided with the spring, and the spring is used for pushing the sliding rod out of the sleeve.

4. The apparatus as claimed in claim 1, wherein the ring main unit has a gap, and an ultrasonic sensor is disposed outside the gap, and the ultrasonic sensor is in signal connection with the second controller.

5. The apparatus as claimed in claim 1, wherein the first controller is in signal connection with a signal transmitter, and the signal transmitter is in signal connection with a remote server via a wireless network.

6. The device for detecting the state of the ring main unit by using the sensor as claimed in claim 1, wherein two rows of the mounting frames are arranged along the axial direction of the ring, the distance between the two mounting frames is equal to 1.5 times of the distance between the flanges of the insulator, and the mounting frames are respectively provided with the rolling balls.

7. The device for detecting the state of the ring main unit by using the sensor as claimed in claim 1, wherein a cavity is arranged in the rolling ball, the cavity is provided with a mesh supporting ball, and the first magnet is clamped between the mesh supporting ball and the inner wall of the rolling ball.

8. The device for detecting the state of the ring main unit by using the sensor as claimed in claim 1, wherein the first magnet is bonded between the mesh-shaped supporting ball and the inner wall of the rolling ball by a fixing glue.

Background

When the insulating system in the ring main unit has a fault, for example, an insulator has an aging fault, partial discharge is generated, the continuous discharge activity accelerates the insulation aging, high-heat and corrosive chemical substances and the like are generated, the insulating system is further damaged, insulation breakdown is caused, and a power accident is caused. At present, equipment for detecting partial discharge of the insulator can move along the axial direction of the insulator and rotate around the insulator to collect information on the periphery of the insulator. Current check out test set up universal ball wheel, motor and friction pulley in the bottom, and the motor drives the friction pulley and rotates when rotating, and the friction pulley drives universal ball wheel through frictional force and rotates, through setting up motor and friction pulley in two axial, can drive universal ball wheel and rotate along two vertically directions. However, when the friction wheel of one of the motors drives the universal ball wheel to rotate, the other friction wheel still contacts and rubs with the universal ball wheel to block the rotation of the universal ball wheel, which is not beneficial to the rotation of the detection equipment around the insulator.

Disclosure of Invention

In view of the above prior art, the present invention provides a device for detecting the state of a ring main unit by using a sensor, which adopts a non-contact type to drive a rolling ball to rotate, so as to facilitate driving a detection device to move along a surrounding insulator.

The technical scheme of the invention is realized as follows:

a device for detecting the state of a ring main unit by using a sensor comprises the ring main unit, an infrared sensor and a first controller, wherein an insulator is arranged in the ring main unit, a ring is sleeved on the insulator, the infrared sensor is installed on the ring through a connecting rod, a plurality of installation frames are arranged on the inner side of the ring, the installation frames are connected with the ring through springs, opposite spherical grooves are arranged on the inner side of the installation frames, rolling balls are arranged between the two spherical grooves, a plurality of uniformly distributed first magnets are arranged in the rolling balls, a first motor and a second motor are arranged on the installation frames, the output shaft of the first motor is tangent to the circumferential direction of the ring, the second motor is parallel to the axial direction of the ring, second magnets which attract the first magnets are arranged on the output shafts of the first motor and the second motor, and the first magnets are driven to rotate when the second magnets rotate, thereby drive the spin and rotate, infrared sensor, first motor and second motor respectively with first controller signal connection.

Furthermore, the rolling ball is made of non-metal materials, and an anti-skid layer is arranged on the surface of the rolling ball.

Further, the mounting bracket is equipped with the slide bar, the ring is equipped with the sleeve, the slide bar with sleeve sliding connection, be equipped with in the slip sleeve the spring, the spring be used for with the slide bar to the sleeve is outer to be released.

Further, the ring main unit is provided with a gap, an ultrasonic sensor is arranged outside the gap of the ring main unit, and the ultrasonic sensor is in signal connection with the second controller.

Furthermore, the first controller is in signal connection with a signal transmitter, and the signal transmitter is in signal connection with a remote server through a wireless network.

Furthermore, two rows of the mounting frames are arranged along the axial direction of the circular ring, the distance between the two mounting frames is equal to 1.5 times of the distance between the flanges of the insulator, and the mounting frames are respectively provided with the rolling balls.

Furthermore, a cavity is arranged in the rolling ball, a net-shaped supporting ball is arranged in the cavity, and the first magnet is clamped between the net-shaped supporting ball and the inner wall of the rolling ball.

Further, the first magnet is bonded between the reticular support ball and the inner wall of the rolling ball through fixing glue.

The invention has the beneficial effects that: when one of the motors drives the rolling ball to rotate, the other motor which does not drive the rolling ball to rotate does not contact with the rolling ball to block the rotation of the rolling ball, so that the detection equipment can move around the insulator conveniently. Infrared sensor passes through the connecting rod to be installed on the ring, has cup jointed the ring at the insulator, has the clearance between ring and the insulator, is equipped with a plurality of mounting bracket in the ring inboard between ring and insulator, installs to being connected with the ring through the spring, and the mounting bracket can slide ring relatively, at the regulation of stretching out and drawing back of different diameter position mounting brackets of insulator. Be equipped with relative spherical recess in the mounting bracket inboard, two spherical recesses are relative, are equipped with the spin between two spherical recesses, and spherical recess can be with spin centre gripping, prevents that the spin from falling out spherical recess.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an apparatus for detecting a ring main unit state by using a sensor according to the present invention;

FIG. 2 is a top view of an infrared detection sensor of the present invention;

FIG. 3 is a cross-sectional view of a ball according to the present invention;

in the figure, 1 ring main unit, 2 infrared sensor, 3 first controller, 4 rings, 5 connecting rods, 6 mounting frames, 7 springs, 8 spherical grooves, 9 rolling balls, 10 first magnet, 11 first motor, 12 second motor, 13 second magnet, 14 sliding rods, 15 sleeves, 16 gaps, 17 ultrasonic sensor, 18 signal emitter, 19 second controller, 20 cavities and 21 net-shaped supporting balls.

Detailed Description

In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, a device for detecting a state of a ring main unit by using a sensor includes a ring main unit 1, an infrared sensor 2 and a first controller 3, wherein an insulator is arranged in the ring main unit 1, the insulator is sleeved with a ring 4, the infrared sensor 2 is installed on the ring 4 through a connecting rod 5, a plurality of installation frames 6 are arranged on the inner side of the ring 4, the installation frames 6 are connected with the ring 4 through springs 7, opposite spherical grooves 8 are arranged on the inner side of the installation frames 6, a rolling ball 9 is arranged between the two spherical grooves 8, a plurality of first magnets 10 are uniformly distributed in the rolling ball 9, the installation frames 6 are provided with a first motor 11 and a second motor 12, an output shaft of the first motor 11 is tangential to the circumferential direction of the ring 4, the second motor 12 is parallel to the axial direction of the ring 4, output shafts of the first motor 11 and the second motor 12 are both provided with second magnets 13 mutually attracted to the first magnets 10, when the second magnet 13 rotates, the first magnet 10 is driven to rotate, so that the rolling ball 9 is driven to rotate, and the infrared sensor 2, the first motor 11 and the second motor 12 are respectively in signal connection with the first controller 3.

When the insulator in the ring main unit 1 generates partial discharge, the partial discharge condition of the insulator can be detected through the infrared sensor 2, and the detected signal is transmitted to the first controller 3. Infrared sensor 2 passes through connecting rod 5 to be installed on ring 4, has cup jointed ring 4 at the insulator, has the clearance between ring 4 and the insulator, is equipped with a plurality of mounting bracket 6 in 4 inboards of ring between ring 4 and the insulator, installs to being connected with ring 4 through spring 7, and mounting bracket 6 can slide ring 4 relatively, at the regulation of stretching out and drawing back of carrying out of different diameter position mounting bracket 6 of insulator. Be equipped with relative spherical recess 8 in mounting bracket 6 inboard, two spherical recesses 8 are relative, are equipped with spin 9 between two spherical recesses 8, and spherical recess 8 can be with spin 9 centre gripping, prevents spin 9 to fall out spherical recess 8. Be equipped with the first magnet 10 of a plurality of equipartitions in spin 9, mounting bracket 6 is equipped with first motor 11 and second motor 12, the output shaft of first motor 11 with the circumference of ring 4 is tangent, second motor 12 with the axial direction parallel of ring 4 can drive second magnet 13 when first motor 11 rotates and rotate and produce rotating magnetic field to drive spin 9 and rotate the axial displacement along the insulator, drive the axial displacement of infrared sensor 2 along the insulator. When the second motor 12 rotates, the second magnet 13 is driven to rotate to generate a rotating magnetic field, so that the rolling ball 9 is driven to rotate along the circumferential direction of the insulator, and the infrared sensor 2 is driven to rotate around the insulator. The first controller 3 is in signal connection with the first motor 11 and the second motor 12, and controls the infrared sensor 2 to move around the insulator by controlling the rotation of the first motor 11 and the second motor 12, so that the surface of the whole insulator is detected. When the rolling ball 9 is driven to rotate, the rolling ball 9 is not contacted, and when one motor drives the rolling ball 9 to rotate, the other motor which does not drive the rolling ball 9 to rotate is not contacted to block the rotation of the rolling ball 9, so that the detection equipment can move around the insulator conveniently.

Specifically, the rolling ball 9 is made of a non-metal material, and an anti-skid layer is arranged on the surface of the rolling ball 9. The rolling ball 9 is prevented from being magnetized, the friction force of the rolling ball 9 is improved, and the rolling stability of the rolling ball 9 along the insulator is improved.

Specifically, mounting bracket 6 is equipped with slide bar 14, ring 4 is equipped with sleeve 15, slide bar 14 with sleeve 15 sliding connection, be equipped with in the slide sleeve 15 spring 7, spring 7 be used for with slide bar 14 to sleeve 15 is outer to be released. The slide 14 of the mounting frame 6 can slide along the sleeve 15 and the ball 9 can adjust its distance from the ring 4. The spring 7 is arranged in the sleeve 15, and the mounting frame 6 can be pushed towards the insulator under the action of the spring 7, so that the rolling ball 9 is pressed on the insulator.

Specifically, the ring main unit 1 is provided with a gap 16, an ultrasonic sensor 17 is arranged outside the gap 16 of the ring main unit 1, and the ultrasonic sensor 17 is in signal connection with the second controller 19. The partial discharge condition in the ring main unit 1 is detected through the ultrasonic sensor 17, and the ultrasonic detection and the infrared detection have a synergistic effect together, so that the detection accuracy of the ring main unit 1 is improved.

Specifically, the first controller 3 is in signal connection with a signal transmitter 18, and the signal transmitter 18 is in signal connection with a remote server through a wireless network. The first controller 3 is in signal connection with the remote server via the wireless signal transmitter 18 and transmits the detected information to the remote server.

Optionally, two rows of the mounting frames 6 are arranged along the axial direction of the circular ring 4, the distance between the two mounting frames 6 is equal to 1.5 times of the distance between the flanges of the insulator, and the mounting frames 6 are respectively provided with the rolling balls 9. When the rolling balls 9 on the first row of mounting frames 6 are positioned at the groove of the insulator, the rolling balls 9 on the second row of mounting frames 6 are positioned at the top of the flange of the insulator, and the mutual action of the springs 7 is counteracted, so that the rolling balls 9 can move along the axial direction of the insulator conveniently.

Specifically, a cavity 20 is arranged in the rolling ball 9, a net-shaped supporting ball 21 is arranged in the cavity 20, and the first magnet 10 is clamped between the net-shaped supporting ball 21 and the inner wall of the rolling ball 9. The gravity of the rolling ball 9 is reduced, and the first magnet 10 is fixed by the net-shaped supporting ball 21, so that the fixing stability of the first magnet 10 is improved.

Specifically, the first magnet 10 is bonded between the mesh-shaped support ball 21 and the inner wall of the rolling ball 9 by fixing glue. The first magnet 10 is fixed by fixing glue, and the fixing effect of the first magnet 10 is improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.