Full-automatic insulation and voltage resistance testing device for high-voltage mutual inductor

Abstract

The invention relates to the field of mutual inductors, in particular to a full-automatic high-voltage mutual inductor insulation and voltage resistance testing device which comprises an installation cabinet, two first electric push rods are fixedly installed at the top of the installation cabinet, a first lifting plate is fixedly installed between the telescopic ends of the bottoms of the two first electric push rods, and two shells are welded to the bottom of the first lifting plate. One sides of the tops of the two shells communicate with air inlet pipelines correspondingly, inner rings are rotationally connected to the inner walls of the two shells correspondingly, first ventilation holes are formed in the peripheral walls of the two inner rings correspondingly, and a plurality of second ventilation holes are formed in the inner walls of the two shells correspondingly. Third ventilation holes are formed in the sides, away from the first ventilation holes, of the outer peripheral walls of the two inner rings, an external air pump inputs airflow into the inner cavity of the shell through an air inlet pipeline, and the airflow enters the inner side of the shell sequentially through the first ventilation holes in the outer peripheral walls of the inner rings and the second ventilation holes in the inner wall of the shell; and thus, the airflow can clean the dust on the electrode contact on the inner side of the shell.

Description

Technical Field

[0001] The invention relates to the field of mutual inductors, and in particular to a fully automatic high-voltage mutual inductor insulation and withstand voltage testing device. Background Art

[0002] The working principle of the high-voltage transformer is based on electromagnetic induction, and its core components include high-voltage winding, low-voltage winding and magnetic core. When current passes through the high-voltage winding, a magnetic field is generated in the winding, which then passes through the magnetic core and is induced into the low-voltage winding, thereby generating a relatively low voltage in the low-voltage winding. This process effectively achieves the reduction of voltage or the transformation of current, so that secondary equipment such as measuring instruments and relays can operate within a safe voltage or current range. From a technical perspective, high-voltage transformers can be classified in many ways. According to their functions, they can be divided into voltage transformers and current transformers. The former is mainly used for voltage measurement, protection and control; the latter is mainly used for current transformation. In addition, according to different filling materials, they can also be divided into oil-type transformers, dry-type transformers, etc. The oil-type transformer is filled with insulating oil, while the dry-type transformer uses epoxy resin as the filling material. From a structural point of view, there are also different types of transformers such as fully enclosed and semi-enclosed to meet the use requirements in different scenarios. After the high-voltage transformer has been running for a period of time, it needs to be disassembled and subjected to a high-voltage resistance test to verify whether its insulation material still meets the working standards. However, dust may accumulate on the surface of the electrode contacts of the high-voltage transformer that has been running for a long time. If the electrode clamp assembly of the test device is directly clamped on the electrode contact without cleaning the dust, this will affect the test results of the test device. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the background technology and to propose a fully automatic high-voltage transformer insulation withstand voltage test device.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a fully automatic high-voltage transformer insulation withstand voltage test device, including an installation cabinet, two electric push rods 1 are fixedly installed on the top of the installation cabinet, a lifting plate 1 is fixedly installed between the telescopic ends of the bottom of the two electric push rods 1, and two shells are welded at the bottom of the lifting plate 1, one side of the top of the two shells is connected with an air inlet pipe, the inner walls of the two shells are rotatably connected with inner rings, the outer peripheral walls of the two inner rings are provided with ventilation holes 1, the inner walls of the two shells are provided with a plurality of ventilation holes 2, and the plurality of ventilation holes 2 on the inner wall of each shell are evenly distributed on the inner peripheral wall of the corresponding shell, the outer peripheral walls of the two inner rings are provided with ventilation holes 3 on the side away from the ventilation holes 1, the outer peripheral walls of the two inner rings are welded with air outlet pipes connected with the corresponding ventilation holes 3, the outer peripheral walls of the two shells are provided with a plurality of ventilation holes 4, and the plurality of ventilation holes 4 on the outer peripheral wall of each shell are evenly distributed on the outer peripheral wall of the corresponding shell, and the outer peripheral walls of the two shells are rotatably connected with inner rings, and the outer peripheral walls of the two shells are provided with ventilation holes 1. An outer ring is connected, and ventilation holes 5 are opened on the outer peripheral walls of the two outer rings. Two mounting frames are welded to the bottom of the lifting plate 1, and motors are fixedly installed on the two mounting frames. Transmission rods 1 are fixedly installed on the output ends of the two motors, and linkage gears 1 and transmission gears 1 are welded on the outer peripheral walls of the two transmission rods 1. A gear ring 1 meshing with the corresponding transmission gear 1 is fixedly sleeved on the outer peripheral walls of the two inner rings, and mounting plates are welded on the outer peripheral walls of the two shells. Transmission rods 2 are rotatably connected to the tops of the two mounting plates, and linkage gears 2 and transmission gears 2 are respectively welded on the upper and lower sides of the two transmission rods 2, sprockets are respectively wound between the two linkage gears 1 and the two linkage gears 2, and gear rings 2 meshing with the corresponding transmission gears 2 are fixedly sleeved on the outer peripheral walls of the two outer rings. An external air pump inputs airflow into the inner cavity of the shell through an air intake pipe, and the airflow enters the inner side of the shell through the ventilation holes 1 on the outer peripheral wall of the inner ring and the ventilation holes 2 on the inner wall of the shell in turn, so that the airflow cleans the dust of the electrode contacts located on the inner side of the shell.

[0005] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, a transmission gear three is welded on the outer peripheral wall of the transmission rod one, the transmission rod three is rotatably connected to the top of the shell, a transmission gear four meshing with the transmission gear three is welded on the top of the transmission rod three, a rotating rod is rotatably connected to the bottom of the transmission rod three, a cylindrical brush is welded on the bottom of the rotating rod, the transmission rod one drives the transmission gear three to rotate, the transmission gear three drives the transmission gear four to rotate, because the number of teeth of the transmission gear three is greater than the number of teeth of the transmission gear four, the transmission gear three drives the transmission gear four to accelerate the rotation, and the transmission gear four drives the transmission rod three, the rotating rod, the transmission gear five and the cylindrical brush to perform circular motion.

[0006] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, a transmission gear five is welded on the outer circumferential wall of the rotating rod, and a gear ring three meshing with the transmission gear five is welded on the inner circumferential wall of the shell. The cylindrical brush will rotate itself during the circular motion. With the help of the cylindrical brush rotating under the circular motion, the dust on the surface of the electrode contact and the dust adhering to the inner circumferential wall of the shell can be cleaned synchronously.

[0007] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, a ventilation hole six is ​​opened on the outer wall of the cylindrical brush, and the ventilation hole six extends into the inner cavity of the cylindrical brush. A plurality of ventilation holes seven are opened on the outer wall of the cylindrical brush, and the plurality of ventilation holes seven extend into the inner cavity of the cylindrical brush. During the operation of the cylindrical brush, the airflow can enter the inner cavity of the cylindrical brush through the through hole six, and then the airflow is discharged through the plurality of ventilation holes seven on the surface of the cylindrical brush. Since the plurality of ventilation holes seven are scattered between the bristles on the surface of the cylindrical brush, when the airflow is discharged from the ventilation hole seven, the bristles will be blown to swing irregularly.

[0008] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, the number of ventilation holes 2 is the same as the number of ventilation holes 4.

[0009] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage test device, two electric push rods 2 are fixedly installed on the top of the installation cabinet, and a lifting plate 2 is fixedly installed between the telescopic ends of the bottom of the two electric push rods. Two electric clamps are fixedly installed on the bottom of the lifting plate 2, and the clamping ends of the two electric clamps are fixedly installed with electrode clamps. The electric push rod 2 drives the lifting plate 2 and the electric clamp to move downward, so that the electrode contact is located between the clamping ends of the electrode clamp. Then the control console controls the electric clamp to drive the electrode clamp to clamp on the electrode contact, and then the external high-voltage generator transmits high voltage to the transformer body through the electrode clamp, so as to test whether the insulating material of the transformer body will be damaged under high voltage.

[0010] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, a linear transmission mechanism is arranged inside the installation cabinet, and a movable base is arranged at the displacement end of the linear transmission mechanism. The linear transmission mechanism transfers the movable base and the transformer body to the bottom of the second lifting plate.

[0011] In the above-mentioned fully automatic high-voltage transformer insulation withstand voltage testing device, a control console is fixedly installed on the side wall of the installation cabinet, and the control console is electrically connected to the electric push rod 1, the electric push rod 2, the motor, the electric clamp and the linear transmission mechanism. The set control console can control the start and stop of the electric push rod 1, the electric push rod 2, the motor, the electric clamp and the linear transmission mechanism.

[0012] Compared with the existing technology, the advantages of this moisture-proof distribution cabinet are:

[0013] 1. The airflow enters the inner side of the shell through the ventilation hole 1 on the outer peripheral wall of the inner ring and the ventilation hole 2 on the inner wall of the shell in turn, so that the airflow cleans the dust on the electrode contact inside the shell. The airflow that continuously enters the inner cavity of the shell through the air intake duct will cause the air pressure in the inner cavity of the shell to continue to increase. When the ventilation hole 2 on the outer peripheral wall of the inner ring is aligned with the next ventilation hole 3, the pressurized airflow in the inner cavity of the shell will be discharged through the ventilation hole 3 and impact on the surface of the electrode contact, thereby enhancing the dust cleaning effect of the airflow;

[0014] 2. The ventilation holes 2 on the outer peripheral wall of the inner ring are intermittently aligned with the plurality of ventilation holes 3 arranged circumferentially on the inner wall of the shell, so that the airflow can be discharged through the plurality of ventilation holes 3 arranged circumferentially, thereby achieving multi-angle cleaning of dust on the surface of the electrode contact;

[0015] 3. The cylindrical brush that rotates in a circular motion can simultaneously clean the dust on the surface of the electrode contact and the dust adhering to the inner wall of the shell, thereby enhancing the cleaning effect of the device on the dust on the surface of the electrode contact;

[0016] 4. During the operation of the cylindrical brush, the airflow can enter the inner cavity of the cylindrical brush through the through hole 6, and then be discharged through a plurality of ventilation holes 7 on the surface of the cylindrical brush. Since the plurality of ventilation holes 7 are dispersed between the bristles on the surface of the cylindrical brush, when the airflow is discharged from the ventilation holes 7, the bristles will be blown to swing irregularly, which not only enhances the dust cleaning effect of the cylindrical brush, but also facilitates the bristles to throw away the dust adhering to their surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A structural schematic diagram of a fully automatic high-voltage transformer insulation withstand voltage test device proposed by the present invention;

[0018] Figure 2 It is a schematic diagram of the housing structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the inner cavity of the housing of the present invention when viewed from above;

[0020] Figure 4 It is a schematic diagram of the motor structure of the present invention;

[0021] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of part A;

[0022] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure of part B;

[0023] Figure 7 It is a schematic diagram of the structure of the transmission gear 5 and the gear ring 3 of the present invention;

[0024] Figure 8 It is a schematic diagram of the cylindrical brush structure of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the electric clamp of the present invention.

[0026] In the figure: 1. Installation cabinet; 2. Electric push rod 1; 3. Lifting plate 1; 4. Shell; 5. Inlet duct; 6. Inner ring; 7. Ventilation hole 1; 8. Ventilation hole 2; 9. Ventilation hole 3; 10. Exit duct; 11. Ventilation hole 4; 12. Outer ring; 13. Ventilation hole 5; 14. Installation frame; 15. Motor; 16. Transmission rod 1; 17. Linkage gear 1; 18. Transmission gear 1; 19. Gear ring 1; 20. Installation plate; 21. Transmission rod 2; 22. Linkage gear 2 ; 23. Transmission gear two; 24. Sprocket; 25. Ring gear two; 26. Transmission gear three; 27. Transmission rod three; 28. Transmission gear four; 29. ​​Rotating rod; 30. Cylindrical brush; 31. Transmission gear five; 32. Ring gear three; 33. Ventilation hole six; 34. Ventilation hole seven; 35. Electric push rod two; 36. Lifting plate two; 37. Electric clamp; 38. Electrode clamp; 39. Linear transmission mechanism; 40. Movable base; 41. Control console; 42. Transformer body. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Reference Figure 1-Figure 9A fully automatic high-voltage transformer insulation withstand voltage test device comprises an installation cabinet 1, two electric push rods 2 are fixedly installed on the top of the installation cabinet 1, a lifting plate 3 is fixedly installed between the telescopic ends of the bottom of the two electric push rods 2, two shells 4 are welded on the bottom of the lifting plate 3, the electric push rod 2 drives the lifting plate 3 to move downward, and the lifting plate 3 drives the two shells 4 to cover the two electrode contacts on the top of the transformer body 42 respectively, so that the two electrode contacts are respectively located on the inner sides of the two shells 4; one side of the top of the two shells 4 is connected with an air intake duct 5, the inner walls of the two shells 4 are rotatably connected with inner rings 6, the outer peripheral walls of the two inner rings 6 are provided with ventilation holes 7, and the inner walls of the two shells 4 are provided with a plurality of ventilation holes 8, and A plurality of ventilation holes 2 8 on the inner wall of each shell 4 are evenly spaced and circumferentially distributed on the inner wall of the corresponding shell 4. Ventilation holes 3 9 are provided on the outer walls of the two inner rings 6 on the side away from the ventilation holes 1 7. An air outlet pipe 10 connected to the corresponding ventilation holes 3 9 is welded on the outer walls of the two inner rings 6. A plurality of ventilation holes 4 11 are provided on the outer walls of the two shells 4, and a plurality of ventilation holes 4 11 on the outer walls of each shell 4 are evenly spaced and circumferentially distributed on the outer walls of the corresponding shell 4. The number of ventilation holes 2 8 and ventilation holes 4 11 is the same. An outer ring 12 is rotatably connected to the outer walls of the two shells 4. Ventilation holes 5 13 are provided on the outer walls of the two outer rings 12. An external air pump inputs airflow into the inner cavity of the shell 4 through the air inlet pipe 5. Figure 5 As shown, the airflow enters the inner side of the housing 4 through the ventilation hole 1 7 on the outer peripheral wall of the inner ring 6 and the ventilation hole 2 8 on the inner wall of the housing 4 in turn, so that the airflow cleans the dust on the electrode contacts on the inner side of the housing 4. Figure 6 As shown, the dust blown off by the airflow is discharged from the inner cavity of the shell 4 through ventilation hole 2 8, ventilation hole 3 9, air outlet duct 10, ventilation hole 4 11 and ventilation hole 5 13 in sequence. When the device is performing dust cleaning operations on the surface of the electrode contact, it has a complete airflow path, which facilitates the rapid discharge of the dust blown off by the airflow.

[0030] Furthermore, two mounting frames 14 are welded at the bottom of the lifting plate 3, and motors 15 are fixedly mounted on the two mounting frames 14. Transmission rods 16 are fixedly mounted on the output ends of the two motors 15. Linkage gears 17 and transmission gears 18 are welded on the outer peripheral walls of the two transmission rods 16. Gear rings 19 meshing with the corresponding transmission gears 18 are fixedly sleeved on the outer peripheral walls of the two inner rings 6. Mounting plates 20 are welded on the outer peripheral walls of the two shells 4. Transmission rods 21 are rotatably connected to the tops of the two mounting plates 20. The transmission rod 21 is welded with a linkage gear 22 and a transmission gear 23 on both the upper and lower sides, respectively. A sprocket 24 is wound around the two linkage gears 17 and the two linkage gears 22, respectively. The outer peripheral walls of the two outer rings 12 are fixedly sleeved with a gear ring 25 meshing with the corresponding transmission gear 23. The motor 15 drives the transmission rod 16 to rotate slowly, the transmission rod 16 drives the linkage gear 17 and the transmission gear 18 to rotate slowly, and the transmission gear 18 drives the gear ring 19 and the inner ring 6 to rotate slowly. Figure 5 As shown, with the rotation of the inner ring 6, the ventilation hole 2 8 on the outer wall of the inner ring 6 is displaced to between two adjacent ventilation holes 3 9. At this time, the inner cavity of the shell 4 is in a closed state, and the airflow that continuously enters the inner cavity of the shell 4 through the air intake duct 5 will cause the air pressure in the inner cavity of the shell 4 to continue to increase. When the ventilation hole 2 8 on the outer wall of the inner ring 6 is aligned with the next ventilation hole 3 9, the pressurized airflow in the inner cavity of the shell 4 will be discharged through the ventilation hole 3 9 and impact the surface of the electrode contact, thereby enhancing the cleaning effect of the airflow.

[0031] Further, a transmission gear 3 26 is welded on the outer peripheral wall of the transmission rod 16, a transmission rod 3 27 is rotatably connected to the top of the housing 4, a transmission gear 4 28 meshing with the transmission gear 3 26 is welded on the top of the transmission rod 3 27, a rotating rod 29 is rotatably connected to the bottom of the transmission rod 3 27, a cylindrical brush 30 is welded to the bottom of the rotating rod 29, a transmission gear 5 31 is welded on the outer peripheral wall of the rotating rod 29, and a gear ring 3 32 meshing with the transmission gear 5 31 is welded on the inner peripheral wall of the housing 4, and the transmission rod 16 drives The transmission gear 3 26 rotates, and the transmission gear 3 26 drives the transmission gear 4 28 to rotate. Since the number of teeth of the transmission gear 3 26 is greater than the number of teeth of the transmission gear 4 28, the transmission gear 3 26 drives the transmission gear 4 28 to rotate faster, and the transmission gear 4 28 drives the transmission rod 3 27, the rotating rod 29, the transmission gear 5 31 and the cylindrical brush 30 to perform circular motion. Since the transmission gear 5 31 is meshed with the gear ring 3 32, the cylindrical brush 30 is rotated in the process of performing the circular motion. During the process, it will also rotate by itself. With the help of the cylindrical brush 30 rotating in a circular motion, the dust on the surface of the electrode contact and the dust adhering to the inner wall of the shell 4 can be cleaned synchronously, so as to enhance the cleaning effect of the device on the dust on the surface of the electrode contact; a ventilation hole 6 33 is opened on the outer wall of the cylindrical brush 30, and the ventilation hole 6 33 extends into the inner cavity of the cylindrical brush 30, and a plurality of ventilation holes 7 34 are opened on the outer wall of the cylindrical brush 30, and the plurality of ventilation holes 7 34 extend to the cylindrical In the inner cavity of the brush 30, during the operation of the cylindrical brush 30, the airflow can enter the inner cavity of the cylindrical brush 30 through the through hole 6, and then the airflow is discharged through the plurality of ventilation holes 7 34 on the surface of the cylindrical brush 30. Since the plurality of ventilation holes 7 34 are dispersed between the bristles on the surface of the cylindrical brush 30, when the airflow is discharged from the ventilation holes 7 34, the bristles will be blown to swing irregularly, which not only enhances the dust cleaning effect of the cylindrical brush 30, but also facilitates the bristles to throw away the dust adhering to the surface;

[0032] Furthermore, two electric push rods 2 35 are fixedly installed on the top of the installation cabinet 1, and a lifting plate 2 36 is fixedly installed between the telescopic ends of the bottom of the two electric push rods. Two electric clamps 37 are fixedly installed at the bottom of the lifting plate 2 36, and the clamping ends of the two electric clamps 37 are fixedly installed with electrode clamps 38. A linear transmission mechanism 39 is arranged on the inner side of the installation cabinet 1, and a movable base 40 is arranged at the displacement end of the linear transmission mechanism 39. A control console 41 is fixedly installed on the side wall of the installation cabinet 1, and the control console 41 is connected with the electric push rod 1 2, the electric push rod 2 35, the motor 15, the electric clamps 37 and the linear actuator 39. The linear transmission mechanism 39 is electrically connected, and the linear transmission mechanism 39 transfers the movable base 40 and the transformer body 42 to the bottom of the lifting plate 2 36, and then the electric push rod 2 35 drives the lifting plate 2 36 and the electric clamp 37 to move downward, so that the electrode contact is located between the clamping ends of the electrode clamp 38, and then the control console 41 controls the electric clamp 37 to drive the electrode clamp 38 to clamp on the electrode contact, and then the external high-voltage generator transmits high voltage electricity to the transformer body 42 through the electrode clamp 38, so as to test whether the insulating material of the transformer body 42 will be damaged under high voltage.

[0033] Working principle: When in use, place the transformer body 42 into the placement slot on the top of the movable base 40, then the control console 41 controls the electric push rod 2 to drive the lifting plate 3 to move downward, and the lifting plate 3 drives the two shells 4 to cover the two electrode contacts on the top of the transformer body 42, so that the two electrode contacts are located on the inner sides of the two shells 4 respectively;

[0034] Then the external air pump inputs air flow into the inner cavity of the housing 4 through the air inlet pipe 5. Figure 5 As shown, the airflow enters the inner side of the housing 4 through the ventilation hole 1 7 on the outer peripheral wall of the inner ring 6 and the ventilation hole 2 8 on the inner wall of the housing 4 in turn, so that the airflow cleans the dust on the electrode contacts on the inner side of the housing 4. Figure 6 As shown, the dust blown off by the airflow is discharged from the inner cavity of the housing 4 through the second ventilation hole 8, the third ventilation hole 9, the air outlet pipe 10, the fourth ventilation hole 11 and the fifth ventilation hole 13 in sequence. When the device is performing the dust cleaning operation on the surface of the electrode contact, it has a complete airflow path, which facilitates the rapid discharge of the dust blown off by the airflow;

[0035] At the same time, the motor 15 drives the transmission rod 16 to rotate slowly, the transmission rod 16 drives the linkage gear 17 and the transmission gear 18 to rotate slowly, and the transmission gear 18 drives the gear ring 19 and the inner ring 6 to rotate slowly. Figure 5As shown, with the rotation of the inner ring 6, the ventilation hole 2 8 on the outer peripheral wall of the inner ring 6 is displaced to between two adjacent ventilation holes 3 9. At this time, the inner cavity of the shell 4 is in a closed state, and the airflow that continuously enters the inner cavity of the shell 4 through the air intake duct 5 will cause the air pressure in the inner cavity of the shell 4 to continue to increase. When the ventilation hole 2 8 on the outer peripheral wall of the inner ring 6 is aligned with the next ventilation hole 3 9, the pressurized airflow in the inner cavity of the shell 4 will be discharged through the ventilation hole 3 9 and impact on the surface of the electrode contact, thereby enhancing the dust cleaning effect of the airflow; in addition, the ventilation hole 2 8 on the outer peripheral wall of the inner ring 6 is intermittently aligned with a plurality of ventilation holes 3 9 arranged circumferentially on the inner wall of the shell 4, so that the airflow can pass through Several ventilation holes 39 arranged in a circle are used to discharge dust, thereby realizing multi-angle cleaning of dust on the surface of the electrode contact; it should be noted that the rotating linkage gear 17 drives the linkage gear 2 22 to rotate synchronously through the sprocket 24, the linkage gear 22 drives the transmission gear 2 23 to rotate through the transmission rod 21, and the transmission gear 2 23 drives the ring gear 2 25 and the outer ring 12 to rotate. Since the tooth pattern ratio of the transmission gear 18 and the ring gear 19 is the same as the tooth pattern ratio of the transmission gear 23 and the ring gear 25, and the transmission gear 18 and the transmission gear 2 23 rotate synchronously, it can be obtained that the rotation speed of the ring gear 19 and the ring gear 25 is the same, and the rotation speed of the inner ring 6 and the outer ring 12 is the same. Figure 6 As shown, the ventilation holes 3 9 on the outer peripheral wall of the inner ring 6, the air outlet duct 10 and the ventilation holes 5 13 on the outer peripheral wall of the outer ring 12 are always aligned, which allows the device to always keep the air flow passage unobstructed when performing dust cleaning operations on the surface of the electrode contact;

[0036] At the same time, the transmission rod 16 drives the transmission gear 3 26 to rotate, and the transmission gear 3 26 drives the transmission gear 4 28 to rotate. Since the number of teeth of the transmission gear 3 26 is greater than the number of teeth of the transmission gear 4 28, the transmission gear 3 26 drives the transmission gear 4 28 to rotate faster, and the transmission gear 4 28 drives the transmission rod 3 27, the rotating rod 29, the transmission gear 5 31 and the cylindrical brush 30 to perform circular motion. Since the transmission gear 5 31 is meshed with the gear ring 3 32, the cylindrical brush 30 will also rotate during the circular motion. With the help of the cylindrical brush 30 rotating under the circular motion, the electrode contact can be touched. The dust on the surface of the head and the dust adhering to the inner wall of the shell 4 are cleaned synchronously, so as to enhance the cleaning effect of the device on the dust on the surface of the electrode contact; in addition, during the operation of the cylindrical brush 30, the airflow can enter the inner cavity of the cylindrical brush 30 through the through hole 6, and then the airflow is discharged through the several ventilation holes 7 34 on the surface of the cylindrical brush 30. Since the several ventilation holes 7 34 are dispersed between the bristles on the surface of the cylindrical brush 30, when the airflow is discharged from the ventilation holes 7 34, the bristles will be blown to swing irregularly, which not only enhances the cleaning effect of the cylindrical brush 30, but also facilitates the bristles to throw out the dust adhering to its surface;

[0037] After the dust cleaning is completed, the electric push rod 2 drives the lifting plate 3 and the shell 4 to move upward, and then the linear transmission mechanism 39 transfers the movable base 40 and the transformer body 42 to the bottom of the lifting plate 36, and then the electric push rod 35 drives the lifting plate 36 and the electric clamp 37 to move downward, so that the electrode contact is located between the clamping ends of the electrode clamp 38, and then the control console 41 controls the electric clamp 37 to drive the electrode clamp 38 to clamp on the electrode contact, and then the external high-voltage generator transmits high voltage electricity to the transformer body 42 through the electrode clamp 38, so as to test whether the insulating material of the transformer body 42 will be damaged under high voltage.

[0038] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0039] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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. A fully automatic high-voltage transformer insulation withstand voltage test device, comprising an installation cabinet (1), characterized in that: Two electric push rods (2) are fixedly mounted on the top of the installation cabinet (1); a lifting plate (3) is fixedly mounted between the telescopic ends of the bottom of the two electric push rods (2); two shells (4) are welded to the bottom of the lifting plate (3); one side of the top of the two shells (4) is connected to an air intake duct (5); an inner ring (6) is rotatably connected to the inner wall of the two shells (4); a ventilation hole (7) is opened on the outer peripheral wall of the two inner rings (6); a plurality of ventilation holes (8) are opened on the inner wall of the two shells (4); and the inner wall of each shell (4) has a plurality of ventilation holes (9). A plurality of ventilation holes (8) are evenly spaced and circumferentially distributed on the inner circumferential wall of the corresponding shell (4); ventilation holes (9) are provided on the outer circumferential wall of the two inner rings (6) on the side away from the ventilation hole (7); an air outlet pipe (10) connected to the corresponding ventilation hole (9) is welded on the outer circumferential wall of the two inner rings (6); a plurality of ventilation holes (11) are provided on the outer circumferential wall of the two shells (4); and the plurality of ventilation holes (11) on the outer circumferential wall of each shell (4) are evenly spaced and circumferentially distributed on the outer circumferential wall of the corresponding shell (4); the two shells (4 ) are rotatably connected to the outer peripheral wall of each of the two outer rings (12), and ventilation holes (13) are provided on the outer peripheral walls of the two outer rings (12). Two mounting frames (14) are welded to the bottom of the lifting plate (3), and motors (15) are fixedly installed on the two mounting frames (14). Transmission rods (16) are fixedly installed on the output ends of the two motors (15). Linkage gears (17) and transmission gears (18) are welded on the outer peripheral walls of the two transmission rods (16), and gears corresponding to the corresponding transmission gears (18) are fixedly sleeved on the outer peripheral walls of the two inner rings (6). 8) meshing gear rings (19), the outer peripheral walls of the two housings (4) are welded with mounting plates (20), the tops of the two mounting plates (20) are rotatably connected with transmission rods (21), the upper and lower sides of the two transmission rods (21) are respectively welded with linkage gears (22) and transmission gears (23), sprockets (24) are respectively wound between the two linkage gears (17) and the two linkage gears (22), and the outer peripheral walls of the two outer rings (12) are fixedly sleeved with gear rings (25) meshing with the corresponding transmission gears (23).

2. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 1, characterized in that: A transmission gear three (26) is welded on the outer peripheral wall of the transmission rod one (16); the top of the housing (4) is rotatably connected to the transmission rod three (27); the top of the transmission rod three (27) is welded with a transmission gear four (28) meshing with the transmission gear three (26); the bottom of the transmission rod three (27) is rotatably connected to a rotating rod (29); the bottom of the rotating rod (29) is welded with a cylindrical brush (30).

3. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 2, characterized in that: A transmission gear five (31) is welded on the outer peripheral wall of the rotating rod (29), and a gear ring three (32) meshing with the transmission gear five (31) is welded on the inner peripheral wall of the housing (4).

4. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 3, characterized in that: A ventilation hole six (33) is provided on the outer peripheral wall of the cylindrical brush (30), and the ventilation hole six (33) extends into the inner cavity of the cylindrical brush (30). A plurality of ventilation holes seven (34) are provided on the outer peripheral wall of the cylindrical brush (30), and the plurality of ventilation holes seven (34) all extend into the inner cavity of the cylindrical brush (30).

5. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 1, characterized in that: The number of ventilation holes two (8) is the same as the number of ventilation holes four (11).

6. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 1, characterized in that: Two electric push rods (35) are fixedly mounted on the top of the installation cabinet (1), a lifting plate (36) is fixedly mounted between the telescopic ends of the bottom of the two electric push rods, two electric clamps (37) are fixedly mounted on the bottom of the lifting plate (36), and electrode clamps (38) are fixedly mounted on the clamping ends of the two electric clamps (37).

7. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 6, characterized in that: A linear transmission mechanism (39) is arranged inside the installation cabinet (1), and a movable base (40) is arranged at the displacement end of the linear transmission mechanism (39).

8. A fully automatic high-voltage transformer insulation withstand voltage test device according to claim 7, characterized in that: A control console (41) is fixedly mounted on the side wall of the installation cabinet (1), and the control console (41) is electrically connected to the electric push rod 1 (2), the electric push rod 2 (35), the motor (15), the electric clamp (37) and the linear transmission mechanism (39).

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