Automatic maintenance equipment for interlayer insulator of flexible straight valve tower

Abstract

A flexible straight valve tower interlayer insulator automatic maintenance device disclosed by the present invention comprises a base, the upper end of the base is fixedly connected with a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected with a vertical plate, and the right side of the vertical plate is fixedly connected with two electric telescopic rods. The telescopic ends of the two electric telescopic rods are jointly and fixedly connected with a rectangular plate, a rotating connector is arranged at the lower end of the rectangular plate, and the lower end of the rotating connector is fixedly connected with a first rotating rod. According to the equipment, a circular ring can be moved to the outer side of an insulator, a camera can transmit the surface of the insulator to a display screen through operation of a driving motor, so that the overhaul effect of the insulator is better, meanwhile, dust on the surface of the insulator can be blown away through operation of a fan during overhaul, and the overhaul efficiency is improved. And meanwhile, through the arrangement of the ultrasonic nebulizer and the ultraviolet optical injury control instrument, whether tiny cracks and carbonization channels exist in the insulator or not can be detected.

Description

Technical Field

[0001] The invention relates to the technical field of insulator detection, and in particular to an automatic maintenance device for interlayer insulators of a flexible straight valve tower. Background Art

[0002] Insulators are devices installed between conductors of different potentials or between conductors and grounded components, and are able to withstand voltage and mechanical stress. There are many types of insulators with different shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting fittings. There are multiple insulators between the layers of the flexible valve tower. In order to ensure the normal use of the insulators, the insulators need to be regularly inspected and maintained. However, the existing insulator maintenance still has the following problems:

[0003] The existing insulator maintenance methods mostly use direct observation and ultraviolet imaging to inspect insulators. The direct observation method usually uses a telescope to observe under the tower to determine whether there are defects such as cracks on the surface of the insulator. However, due to certain blind spots in human observation, there will be certain omissions in the inspection of insulators. The ultraviolet imaging method needs to be carried out in a high humidity and rainfall environment, which imposes many environmental restrictions on insulator maintenance. Therefore, how to reasonably solve this problem is what we need to consider. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose an automated maintenance equipment for interlayer insulators of a flexible straight valve tower. The equipment can move a ring to the outside of the insulator, and utilize the operation of a driving motor to enable a camera to transmit the surface of the insulator to a display screen, thereby achieving a better maintenance effect on the insulator. At the same time, the operation of the fan can blow away the dust on the surface of the insulator during maintenance, making it easier for staff to find cracks in time. At the same time, through the setting of an ultrasonic atomizer and an ultraviolet optical flaw control instrument, it can be detected whether the insulator has small cracks and carbonization channels.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A flexible straight valve tower interlayer insulator automatic maintenance equipment, comprising a base, the upper end of the base is fixedly connected with a hydraulic rod, the telescopic end of the hydraulic rod is fixedly connected with a vertical plate, the right side of the vertical plate is fixedly connected with two electric telescopic rods, the telescopic ends of the two electric telescopic rods are commonly fixedly connected with a rectangular plate, the lower end of the rectangular plate is provided with a rotating joint, the lower end of the rotating joint is fixedly connected with a first rotating rod, the lower end of the first rotating rod is fixedly connected with a circular plate, the lower end of the circular plate is fixedly connected with a fixed telescopic rod, the telescopic ends of the two fixed telescopic rods are commonly fixedly connected with a circular ring, the inner wall of the circular ring is provided with a camera, the upper end of the base is provided with a display screen, the lower end of the circular plate is fixedly connected with an installation box, a driving motor is installed in the installation box, the output shaft end of the driving motor extends to the outside and can be connected to a second rotating rod, the second rotating rod is provided with a second gear, the first rotating rod is provided with a first gear, the adjacent surfaces of the circular plate and the circular ring are commonly fixedly connected with two folding airbags; a moving component is provided in the rectangular plate, and the moving component is used to control the stretching length of the two folding airbags.

[0007] Preferably, the moving component includes a transverse cavity arranged in a rectangular plate, an electromagnet is installed on the left inner wall of the transverse cavity, a moving block is slidably connected in the transverse cavity, the moving block and the adjacent surface of the electromagnet are elastically connected by a spring, the left space of the transverse cavity is connected with the outside through an air inlet pipe, the left space of the transverse cavity is connected with the upper end of the rotary joint through an air outlet pipe, a three-way channel is commonly provided in the first rotating rod and the circular plate, the upper end of the three-way channel is connected with the lower end of the rotary joint, the lower end of the three-way channel is connected with two folding airbags, both of the two folding airbags are provided with exhaust pipes, and both of the exhaust pipes are provided with solenoid valves.

[0008] Preferably, the lower end of the circular plate is fixedly connected to two connecting rods, the lower ends of the two connecting rods are commonly fixedly connected to a rectangular box, the lower end of the second rotating rod extends into the rectangular box, the outer wall of the second rotating rod is fixedly connected to a cross bar, and a counting sensor is installed on the inner bottom of the rectangular box.

[0009] Preferably, the inner wall of the ring is provided with a plurality of nozzles, a fan is installed on the left side of the ring, an annular cavity is provided inside the ring, the plurality of nozzles are connected to the annular cavity, and the air outlet end of the fan is connected to the annular cavity through a connecting pipe.

[0010] Preferably, the annular cavity is filled with water, an ultrasonic atomizer is installed on the inner bottom of the annular cavity, and a plurality of ultraviolet optical flaw control instruments are installed on the inner wall of the ring.

[0011] Preferably, both the air inlet pipe and the air outlet pipe are provided with a one-way valve, and the right side space of the transverse cavity is connected with the outside through an opening.

[0012] The present invention has the following beneficial effects:

[0013] 1. Compared with the prior art, the camera and the display screen are set up so that when the insulator is inspected, the surface of the insulator can be transmitted to the display screen for display. At the same time, the drive motor and the moving assembly are set up so that the ring rotates and moves downward periodically, ensuring that the surface of the insulator is completely inspected;

[0014] 2. Compared with the prior art, the fan and multiple nozzles are set up so that during the detection process, multiple nozzles will spray gas to blow away the dust on the surface of the insulator, clean the insulator, and prevent the dust from covering the cracks and causing the detection to be missed;

[0015] 3. Compared with the existing technology, the ultrasonic atomizer and the ultraviolet optical flaw control instrument are set up so that the ejected airflow carries a certain amount of water mist to humidify the surrounding environment of the insulator, so that the ultraviolet optical flaw control instrument can detect the insulator in a humid environment, further improving the maintenance effect of the insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of an automatic maintenance device for interlayer insulators of a flexible straight valve tower proposed by the present invention;

[0017] Figure 2 A schematic diagram of the three-dimensional structure of an automatic maintenance device for interlayer insulators of a flexible straight valve tower proposed by the present invention;

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 6 for Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0022] In the figure: 1 base, 2 display screen, 3 hydraulic rod, 4 vertical plate, 5 electric telescopic rod, 6 rectangular plate, 7 horizontal cavity, 8 moving block, 9 spring, 10 electromagnet, 11 air inlet pipe, 12 air outlet pipe, 13 round plate, 14 fixed telescopic rod, 15 folding airbag, 16 three-way channel, 17 ring, 18 connecting rod, 19 first rotating rod, 20 rotating joint, 21 driving motor, 22 first gear, 23 second gear, 24 rectangular box, 25 second rotating rod, 26 horizontal rod, 27 counting sensor, 28 fan, 29 annular cavity, 30 nozzle, 31 camera, 32 ultraviolet optical flaw control instrument, 33 ultrasonic atomizer. DETAILED DESCRIPTION

[0023] The technical aspects of the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] Reference Figure 1-6 A flexible straight valve tower interlayer insulator automatic maintenance equipment, comprising a base 1, the upper end of the base 1 is fixedly connected with a hydraulic rod 3, the telescopic end of the hydraulic rod 3 is fixedly connected with a vertical plate 4, the right side of the vertical plate 4 is fixedly connected with two electric telescopic rods 5, the telescopic ends of the two electric telescopic rods 5 are commonly fixedly connected with a rectangular plate 6, the lower end of the rectangular plate 6 is provided with a rotating joint 20, the lower end of the rotating joint 20 is fixedly connected with a first rotating rod 19, the lower end of the first rotating rod 19 is fixedly connected with a circular plate 13, the lower end of the circular plate 13 is fixedly connected with a fixed telescopic rod 14, the telescopic ends of the two fixed telescopic rods 14 are commonly fixedly connected with a circular ring 17, the inner wall of the circular ring 17 is provided with a camera 31, the upper end of the base 1 is provided with a display screen 2, the camera 3 The picture taken by 1 can be transmitted to the display screen 2 for display. The lower end of the circular plate 13 is fixedly connected with a mounting box, and a driving motor 21 is installed in the mounting box. The driving motor 21 is a low-speed motor. The output shaft end of the driving motor 21 extends to the outside and can be connected to a second rotating rod 25. The second rotating rod 25 is provided with a second gear 23, and the first rotating rod 19 is provided with a first gear 22. The adjacent surfaces of the circular plate 13 and the circular ring 17 are fixedly connected with two folding airbags 15. The two folding airbags 15 are rubber material layers. When the gas in the folding airbag 15 increases, the folding airbag 15 will stretch downward. When the gas in the folding airbag 15 decreases, the circular ring 17 will return to its original position under the elastic effect of the folding airbag 15 itself.

[0025] Among them, a moving component is provided in the rectangular plate 6, and the moving component is used to control the stretching length of the two folding airbags 15. The moving component includes a transverse cavity 7 arranged in the rectangular plate 6, and an electromagnet 10 is installed on the left inner wall of the transverse cavity 7. A moving block 8 is slidably connected in the transverse cavity 7. The moving block 8 is supported by an iron material. After the electromagnet 10 is energized, it attracts the adjacent surface of the moving block 8 with opposite charges. The adjacent surface of the moving block 8 and the electromagnet 10 are elastically connected by a spring 9. The left space of the transverse cavity 7 is connected to the outside world through an air inlet pipe 11, and the left space of the transverse cavity 7 is connected to the upper end of the rotary joint 20 through an air outlet pipe 12. A three-way channel 16 is provided in the first rotating rod 19 and the circular plate 13. The upper end of the three-way channel 16 is connected with the lower end of the rotating joint 20, and the lower end of the three-way channel 16 is connected with two folding airbags 15. Exhaust pipes are provided on the two folding airbags 15, and solenoid valves are provided on the two exhaust pipes. Check valves are provided on the air inlet pipe 11 and the air outlet pipe 12. The right side space of the transverse cavity 7 is connected with the outside through an opening, and the outside gas enters the left side space of the transverse cavity 7 in one direction through the air inlet pipe 11, and the gas in the left side space of the transverse cavity 7 enters the three-way channel 16 in one direction through the air outlet pipe 12.

[0026] Among them, the lower end of the circular plate 13 is fixedly connected to two connecting rods 18, and the lower ends of the two connecting rods 18 are commonly fixedly connected to a rectangular box 24. The lower end of the second rotating rod 25 extends into the rectangular box 24, and the outer wall of the second rotating rod 25 is fixedly connected to a cross bar 26. A counting sensor 27 is installed at the inner bottom of the rectangular box 24, and a controller is provided. When the counting sensor 27 counts to a certain level, an electrical signal is generated and transmitted to the controller. The controller controls the current passing through the electromagnet 10 to increase, and at the same time the counting sensor 27 will reset and count again.

[0027] Among them, the inner wall of the ring 17 is provided with multiple nozzles 30, a fan 28 is installed on the left side of the ring 17, an annular cavity 29 is provided in the ring 17, multiple nozzles 30 are connected to the annular cavity 29, and the air outlet end of the fan 28 is connected to the annular cavity 29 through a connecting pipe.

[0028] The annular cavity 29 is filled with water, an ultrasonic atomizer 33 is installed at the inner bottom of the annular cavity 29 , and a plurality of ultraviolet optical flaw control instruments 32 are installed on the inner wall of the ring 17 .

[0029] The functional principle of the present invention can be explained through the following operation mode: when inspecting the insulator, after the base 1 is moved to a specified position, the hydraulic rod 3 is started to move the vertical plate 4 to a specified height, and then the two electric telescopic rods 5 are started to move the rectangular plate 6 to a specified position, and then the electric telescopic rods 5 are controlled to move downward again, so that the ring 17 moves to the outer periphery of the upper end of the insulator;

[0030] At this time, the drive motor 21, the camera 31, the fan 28, the ultrasonic atomizer 33 and the ultraviolet optical flaw control device 32 can be started. The operation of the drive motor 21 drives the second rotating rod 25 to rotate, thereby rotating the cross bar 26 and the first rotating rod 19. The rotation of the first rotating rod 19 drives the circular plate 13 to rotate, so that the ring 17 drives the camera 31 to rotate, so that the camera 31 can transmit the surface impact of the insulator to the display screen 2;

[0031] During the rotation of the crossbar 26, it will continuously pass the counting sensor 27. When the counting sensor 27 counts a certain number of times, it will transmit an electrical signal to the controller. The controller controls the current passing through the electromagnet 10 to increase initially, so that the moving block 8 moves to the right for a distance, so that the gas in the left space of the cross chamber 7 enters the two folding airbags 15 through the three-way channel 16, so that the gas passing through the two folding airbags 15 increases, and the folding airbags 15 will stretch to make the ring 17 move down a specified distance;

[0032] It is worth mentioning that when the controller controls the current passing through the electromagnet 10 to increase, the counting sensor 27 will automatically reset and count again. When the number of the counting sensor 27 reaches the predetermined number of times again, the current passing through the electromagnet 10 will be controlled to increase again, so that the moving block 8 moves to the left again for a distance, so that the ring 17 continues to move down a specified distance, so that the ring 17 drives the camera 31 to move down periodically, so that the surface of the insulator can be fully presented on the display screen 2, avoiding the occurrence of blind spots during observation, and improving the maintenance effect of the insulator;

[0033] Due to the operation of the fan 28, external gas is injected into the annular cavity 29 and then ejected through multiple nozzles 30 to blow away the dust on the insulator, thus preventing the dust from covering the cracks and causing maintenance omissions.

[0034] At the same time, the operation of the ultrasonic atomizer 33 will atomize the liquid in the annular cavity 29, and the atomized liquid will be sprayed around the insulator along with the airflow, thereby increasing the environmental humidity around the insulator, and then enabling the ultraviolet optical flaw control instrument 32 to detect tiny cracks and carbonized channels on the surface of the insulator, thereby improving the detection effect of the insulator and avoiding the occurrence of missed detection due to cracks and carbonized channels being too small.

[0035] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic maintenance device for interlayer insulators of a flexible straight valve tower, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a hydraulic rod (3), the telescopic end of the hydraulic rod (3) is fixedly connected to a vertical plate (4), the right side of the vertical plate (4) is fixedly connected to two electric telescopic rods (5), the telescopic ends of the two electric telescopic rods (5) are commonly fixedly connected to a rectangular plate (6), the lower end of the rectangular plate (6) is provided with a rotating joint (20), the lower end of the rotating joint (20) is fixedly connected to a first rotating rod (19), the lower end of the first rotating rod (19) is fixedly connected to a circular plate (13), the lower end of the circular plate (13) is fixedly connected to a fixed telescopic rod (14), the two fixed telescopic rods (14) The telescopic ends of the circular plate (13) are fixedly connected to a circular ring (17), the inner wall of the circular ring (17) is provided with a camera (31), the upper end of the base (1) is provided with a display screen (2), the lower end of the circular plate (13) is fixedly connected to a mounting box, a driving motor (21) is installed in the mounting box, the output shaft end of the driving motor (21) extends to the outside and can be connected to a second rotating rod (25), the second rotating rod (25) is provided with a second gear (23), the first rotating rod (19) is provided with a first gear (22), and the adjacent surfaces of the circular plate (13) and the circular ring (17) are fixedly connected to two folding airbags (15); A moving component is arranged inside the rectangular plate (6), and the moving component is used to control the stretching length of the two folding airbags (15).

2. The automatic maintenance equipment for interlayer insulators of flexible straight valve tower according to claim 1 is characterized by: The moving assembly comprises a transverse cavity (7) arranged in a rectangular plate (6), an electromagnet (10) is installed on the left inner wall of the transverse cavity (7), a moving block (8) is slidably connected in the transverse cavity (7), the moving block (8) and the adjacent surface of the electromagnet (10) are elastically connected via a spring (9), the left space of the transverse cavity (7) is connected to the outside through an air inlet pipe (11), the left space of the transverse cavity (7) is connected to the upper end of the rotary joint (20) through an air outlet pipe (12), a three-way channel (16) is commonly provided in the first rotating rod (19) and the circular plate (13), the upper end of the three-way channel (16) is connected to the lower end of the rotary joint (20), the lower end of the three-way channel (16) is connected to two folding airbags (15), the two folding airbags (15) are provided with exhaust pipes, and the two exhaust pipes are provided with electromagnetic valves.

3. The automatic maintenance equipment for interlayer insulators of flexible straight valve tower according to claim 1 is characterized by: The lower end of the circular plate (13) is fixedly connected to two connecting rods (18), the lower ends of the two connecting rods (18) are commonly fixedly connected to a rectangular box (24), the lower end of the second rotating rod (25) extends into the rectangular box (24), the outer wall of the second rotating rod (25) is fixedly connected to a cross bar (26), and a counting sensor (27) is installed on the inner bottom of the rectangular box (24).

4. The automatic maintenance equipment for interlayer insulators of a flexible straight valve tower according to claim 3 is characterized by: The inner wall of the circular ring (17) is provided with a plurality of nozzles (30), a fan (28) is installed on the left side of the circular ring (17), an annular cavity (29) is provided inside the circular ring (17), the plurality of nozzles (30) are all connected to the annular cavity (29), and an air outlet end of the fan (28) is connected to the annular cavity (29) via a connecting pipe.

5. The automatic maintenance equipment for interlayer insulators of flexible straight valve tower according to claim 4 is characterized in that: The annular cavity (29) is filled with water, an ultrasonic atomizing sheet (33) is installed on the inner bottom of the annular cavity (29), and a plurality of ultraviolet optical flaw control instruments (32) are installed on the inner wall of the circular ring (17).

6. The automatic maintenance equipment for interlayer insulators of flexible straight valve tower according to claim 2 is characterized by: The air inlet pipe (11) and the air outlet pipe (12) are both provided with one-way valves, and the right side space of the transverse cavity (7) is connected to the outside through an opening.

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