A low-voltage current transformer positioning, breaking, scrapping and processing device

Abstract

The application relates to the technical field of breaking and disassembling treatment equipment, and discloses a low-voltage current transformer positioning breaking and disassembling and scrapping treatment device, which comprises a base serving as a basic component of the whole device and used for assembling and bearing various treatment mechanisms and subordinate structure members thereof; and a positioning moving mechanism arranged at the top middle part of the base and used for positioning and fixing a low-voltage current transformer to be broken and disassembled from the inside and outside and moving the low-voltage current transformer to a subsequent treatment position after the positioning and fixing. By increasing and arranging the fixing and moving mechanism, the mechanism can position and fix the inside of the low-voltage current transformer according to different shapes of the low-voltage current transformer, the adaptability of the whole device during use is improved, and the device replacement can be avoided when the low-voltage current transformer with different shapes is used, so that the labor intensity of workers is reduced and the breaking and disassembling work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of demolition and disposal equipment technology, specifically a low-voltage current transformer positioning, demolition, and scrapping disposal device. Background Technology

[0002] A low-voltage current transformer is an electrical device that converts high alternating current into a low, easily controllable current. In power systems, low-voltage current transformers are primarily used for current measurement, metering, and protection. They convert large currents into smaller ones, facilitating measurement and metering by instruments such as measuring meters and energy meters. Simultaneously, in the event of a circuit fault, the current transformer provides a signal to protection devices, enabling them to act promptly, disconnecting the faulty circuit and protecting electrical equipment and personnel. They are widely used in various low-voltage power distribution systems, such as factories, shopping malls, residential communities, and substations. For example, in factory distribution rooms, they are used to monitor and meter the electricity consumption of each production line; in residential distribution boxes, they are used to measure the electricity consumption of each household.

[0003] Low-voltage current transformers mainly consist of a casing and an internal iron core winding. Due to their operating characteristics and the requirement for high sealing during operation, their casing is generally a one-piece metal casing. Therefore, when forcibly dismantling a low-voltage current transformer, the metal casing must be dismantled first before the internal iron core winding can be removed. However, existing dismantling methods include manual hammering, which is time-consuming, labor-intensive, and inefficient, and hydraulic crushing, which has poor controllability and safety, easily damaging the internal iron core winding and also having poor safety. Therefore, those skilled in the art have proposed a low-voltage current transformer positioning, dismantling, and scrapping device to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a low-voltage current transformer positioning, dismantling, and scrapping device, which solves the problems of low processing efficiency and poor safety of existing dismantling methods.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-voltage current transformer positioning, dismantling, and scrapping device, comprising...

[0006] The base, as the fundamental component of the overall device, is used to assemble and support the various processing mechanisms and their subordinate structural components;

[0007] The positioning and moving mechanism is located at the top center of the base. It is used to perform double positioning and fixing of the low-voltage current transformer that is about to be dismantled, and to move it to the subsequent processing position after the positioning and fixing is completed.

[0008] The front-end processing mechanism, located at one end of the base, is used for the front-end processing of the low-voltage current transformer before it is dismantled after the positioning and moving mechanism has finished processing.

[0009] The back-end processing mechanism, located at the other end of the base, is used for back-end processing of the low-voltage current transformer before it is dismantled after the front-end processing mechanism has finished processing.

[0010] The dismantling and separation mechanism is located on both sides of the middle of the base and is used to dismantle and separate the low-voltage current transformer after it has been processed by the back-end processing mechanism.

[0011] Preferably, the positioning and moving mechanism includes a moving groove, an I-beam seat is slidably connected inside the moving groove, a lead screw is rotatably connected to the middle of one side of the moving groove, and the other end of the lead screw passes through the middle of the I-beam seat and is rotatably connected to the middle of the other side of the moving groove. A servo motor is provided at the middle of one end of the base, and the output end of the servo motor passes through the base and is connected to the middle of one end of the lead screw.

[0012] Preferably, the positioning and moving mechanism further includes a connecting seat, which is fixedly connected to the top center of the I-beam base. A four-jaw chuck is provided at the top center of the connecting seat. Multiple stepped positioning seats are arranged in a circular array around the top center of the four-jaw chuck. A central seat is provided in the center of the four-jaw chuck. An electromagnet disk is provided in the inner center of the connecting seat. Multiple lifting columns are slidably connected to the central seat. Each lifting column has an electromagnet base at its bottom.

[0013] Preferably, the front-end processing mechanism includes a rear mounting base, one end of the base is fixedly connected to the rear mounting base, the rear bottom of the rear mounting base is provided with a liquid nitrogen storage tank, the front top center of the rear mounting base is provided with an electric cylinder three, and the top of the rod of the electric cylinder three is fixedly connected to an annular seat two.

[0014] Preferably, the front-end processing mechanism further includes a dispersion chamber one, a dispersion chamber one is formed in the middle of the inner side of the annular seat two, an outer spray ring seat is provided in the middle of the inner wall of the annular seat two, and the liquid inlet of the outer spray ring seat is connected to the interior of the dispersion chamber one, a central column one is fixedly connected to the middle of the top inner side of the annular seat two, and the interior of the central column one is connected to the interior of the dispersion chamber one, an inner spray ring seat is provided in the middle of the outer wall of the central column one, and the liquid inlet of the inner spray ring seat is connected to the interior of the central column one, a liquid nitrogen delivery pump is provided in the lower middle of the rear side of the rear mounting seat, a slot is formed in the upper middle of the rear mounting seat, the liquid inlet of the liquid nitrogen delivery pump is connected to the interior of the liquid nitrogen storage tank through a connecting pipe, and the liquid outlet of the liquid nitrogen delivery pump is connected to the interior of the dispersion chamber one through a connecting pipe.

[0015] Preferably, the back-end processing mechanism includes a front mounting base, with the front mounting base fixedly connected to one end of the base away from the rear mounting base. Gas storage tanks are provided on both sides of the bottom rear side of the front mounting base, and the lower middle parts of the gas storage tanks are connected by a pressure equalization pipe. An electric cylinder is provided at the top center of the front side of the front mounting base, and an annular seat is fixedly connected to the top of the rod of the electric cylinder. A dispersion chamber is provided in the middle of the inner side of the annular seat.

[0016] Preferably, the back-end processing mechanism further includes a solenoid valve. A solenoid valve is provided on the lower front side of the front mounting base. The middle part of the pressure equalization pipe is connected to one end of the solenoid valve through a connecting pipe. The other end of the solenoid valve is connected to the interior of the dispersion chamber two through a connecting pipe. An outer ring seat is provided on the middle of the inner wall of the annular seat one. A central column two is provided on the middle of the top inner side of the annular seat one. The interior of the central column two is connected to the interior of the dispersion chamber two. An inner ring seat is provided on the middle of the outer wall of the central column two. Multiple flame heads are arranged in a circumferential array on the middle inner side of both the outer ring seat and the inner ring seat.

[0017] Preferably, the breaking and separating mechanism includes a side mounting base, and the middle of both sides of the base are fixedly connected to the side mounting base. Two electric cylinders are equidistantly arranged on the upper middle part of the adjacent side of the side mounting base. The top ends of the rods of the electric cylinders on the same side are respectively fixedly connected to the middle of the corresponding mounting plate. A triangular prism seat is fixedly connected to the middle of the adjacent side of the mounting plate.

[0018] Working Principle: When processing a scrapped low-voltage current transformer, the positioning and moving mechanism is activated. First, the worker places the low-voltage current transformer to be dismantled onto the four-jaw chuck on the connecting base. Then, the worker activates the four-jaw chuck, causing the stepped positioning seat on the chuck to move synchronously towards the center of the chuck. Simultaneously, the stepped positioning seat pushes the low-voltage current transformer on the chuck towards the center. Once the stepped positioning seat has positioned the low-voltage current transformer on the chuck at its center, it stops moving, thus completing the external fixing and positioning of the low-voltage current transformer. Then, the external parts of the low-voltage current transformer are then... After positioning is complete, staff use remote control equipment to energize the electromagnet disc and change its magnetism, making the electromagnet disc and the electromagnet base at the bottom of the lifting column have the same magnetic polarity. Based on the principle of like poles repelling and unlike poles attracting, the repulsive force generated between the electromagnet base and the electromagnet disc pushes the lifting column inside the central seat upwards. At this point, the lifting column at the hollow center of the low-voltage current transformer, having no upper restraint, rises accordingly. The rising lifting column then fixes the inner center of the low-voltage current transformer, completing the internal positioning and fixing process. After the low-voltage current transformer is double-fixed inside and out, the servo motor on the base... The servo motor starts, and as its shaft rotates, it drives the lead screw in the moving slot to rotate synchronously. The lead screw, in turn, moves the I-beam in the moving slot, which in turn moves the connecting seat and the end of the low-voltage current transformer moving base on the four-jaw chuck. This completes the dual internal and external positioning and movement of the low-voltage current transformer. When the low-voltage current transformer, after being fixed in position, is moved to the front-end processing mechanism by the positioning and moving mechanism, the front-end processing mechanism starts. First, the electric cylinder three on the rear mounting base starts. After starting, the rod on the electric cylinder three extends, simultaneously driving the annular seat two at its bottom to move synchronously. The ring seat 2 moves down until it completely covers the low-voltage current transformer housing on the four-jaw chuck, and then stops moving down. At this time, the outer spray ring seat transports liquid nitrogen from the liquid nitrogen storage tank to the dispersion chamber 1 of the ring seat 2 through the connecting pipe. Then, as the amount of liquid nitrogen in the dispersion chamber 1 increases, after the interior of the dispersion chamber 1 is completely filled with liquid nitrogen, the liquid nitrogen in the dispersion chamber 1 is sprayed through the outer spray ring seat to the middle of the metal shell of the low-voltage current transformer. At the same time, the liquid nitrogen in the dispersion chamber 1 is sprayed through the central column 1 and the inner spray ring seat to the inner middle of the metal shell of the low-voltage current transformer. In this way, the liquid nitrogen rapidly cools the middle of the metal shell of the low-voltage current transformer, thus completing the front-end processing operation of the low-voltage current transformer before dismantling.After the front-end processing, the low-voltage current transformer is moved to the position of the back-end processing mechanism by the positioning and moving mechanism. At this time, the back-end processing mechanism is activated. First, the electric cylinder on the front mounting base is activated. After the electric cylinder is activated, its rod extends. At the same time, the annular seat at the bottom of the electric cylinder moves down synchronously. After the annular seat moves and completely covers the housing of the low-voltage current transformer, it stops moving. Then, the operator opens the solenoid valve on the front mounting base, so that the combustible gas in the gas storage tank enters the dispersion chamber two of the annular seat one through the equalizing pipe, connecting pipe and solenoid valve. Then, the combustible gas in the dispersion chamber two enters the outer ring seat and the inner ring seat on the central column two. The combustible gas that enters into these chambers is ignited by the burner and sprayed out, so that the high-temperature flame bakes the area on the low-voltage current transformer housing that has been treated with liquid nitrogen freezing and cooling. This completes the back-end processing operation of the low-voltage current transformer before dismantling. Then, the low-voltage current transformer, after being processed by the back-end processing mechanism, is then... The device is moved to the middle of the base by a positioning and moving mechanism, which is the location of the dismantling and separation mechanism. Once it reaches this location, the dismantling and separation mechanism is activated. First, the electric cylinder two on the side mounting base is activated. After activation, the rod on the electric cylinder two pushes out towards the middle simultaneously. Simultaneously, the rod on the electric cylinder two moves the mounting plate on it. As the mounting plate moves, it moves the triangular prism seat on it towards the middle of the low-voltage current transformer housing on the four-jaw chuck. Then, as the triangular prism seat on the mounting plate continues to move, it squeezes the housing of the low-voltage current transformer after it has been processed by the front-end and rear-end processing mechanisms. Due to the large temperature difference generated by the front-end and rear-end processing mechanisms on the housing, the structural strength of the metal housing decreases sharply. Only a gentle squeeze from the sides of the housing by the triangular prism seat is needed to separate the housing into two separate halves. The operator can then remove the iron core windings inside, thus completing the dismantling and separation operation of the low-voltage current transformer.

[0019] This invention provides a device for locating, dismantling, and scrapping low-voltage current transformers. It has the following beneficial effects:

[0020] 1. This invention adds and sets a fixed displacement mechanism to double-fix the low-voltage current transformer internally and externally during dismantling. This double-fixing method greatly enhances the stability of the transformer during operation and effectively avoids dismantling errors caused by shaking or displacement, ensuring the accuracy of the dismantling work. At the same time, after positioning, it can accurately drive the transformer to the corresponding processing position, greatly improving the automation level and work efficiency of the entire dismantling process, reducing errors and time losses that may occur due to manual handling and position adjustment, making the dismantling of low-voltage current transformers safer, more efficient, and more accurate.

[0021] 2. By adding and setting a fixed displacement mechanism, this invention can position and fix the internal parts of low-voltage current transformers according to their different shapes by raising lifting columns at different positions. This improves the adaptability of the overall device during use and avoids the tediousness of equipment replacement when using low-voltage current transformers of different shapes. It also helps to reduce the labor intensity of workers and improve the efficiency of demolition work.

[0022] 3. By adding and setting a front-end processing mechanism, this invention sprays liquid nitrogen onto the inner and outer sides of the metal casing of the low-voltage current transformer before dismantling it. This causes the metal casing to cool down and shrink rapidly. This process not only changes the physical properties of the metal and effectively reduces its hardness, making subsequent dismantling work easier, but also reduces the amount of liquid nitrogen used and lowers costs compared to traditional overall treatment methods. At the same time, by reducing the difficulty of dismantling, it can reduce the wear of dismantling tools, extend the service life of tools, and improve the overall efficiency and economy of dismantling work.

[0023] 4. By adding and setting up a back-end processing mechanism, this invention enables the internal and external high-temperature baking treatment of the low-voltage current transformer shell after liquid nitrogen spraying. On the one hand, the high temperature can cause the metal structure, which has been excessively contracted due to liquid nitrogen spraying, to expand and return to its original position, thereby relieving internal stress and reducing the possibility of cracks, breakage, and other adverse situations during dismantling, thus improving the safety of subsequent dismantling. On the other hand, this treatment can change the toughness and hardness of the metal shell, further reducing the difficulty of subsequent dismantling and improving the efficiency and quality of dismantling. Moreover, the precise high-temperature baking treatment can also avoid damage to the internal components of the transformer due to excessively high or low temperatures, ensuring that the dismantling work is carried out smoothly and safely. Attached Figure Description

[0024] Figure 1 This is a front view structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0026] Figure 3This is a schematic diagram of the rear structure of the present invention;

[0027] Figure 4 This is a partial structural diagram of the base of the present invention;

[0028] Figure 5 This is a cross-sectional view of the internal structure of the base of the present invention;

[0029] Figure 6 This is a cross-sectional schematic diagram of the internal structure of the annular seat II of the present invention;

[0030] Figure 7 This is a cross-sectional schematic diagram of the internal structure of the annular seat of the present invention;

[0031] Figure 8 This is a partial structural diagram of the side mounting base of the present invention.

[0032] The components include: 1. Base; 2. Side mounting base; 3. Connecting base; 4. Gas storage tank; 5. Solenoid valve; 6. Electric cylinder one; 7. Front mounting base; 8. Annular seat one; 9. Electric cylinder two; 10. Moving slot; 11. Rear mounting base; 12. Annular seat two; 13. Liquid nitrogen transfer pump; 14. Liquid nitrogen storage tank; 15. Lead screw; 16. Pressure equalizing pipeline; 17. Servo motor; 18. Slot; 19. Stepped positioning base. 20. Center seat; 21. Mounting plate; 22. Four-jaw chuck; 23. Electric cylinder three; 24. I-beam seat; 25. Triangular prism seat; 26. Lifting column; 27. Electromagnet base; 28. Electromagnet disc; 29. ​​Dispersion chamber one; 30. Inner spray ring seat; 31. Outer spray ring seat; 32. Center column one; 33. Dispersion chamber two; 34. Outer ring seat; 35. Center column two; 36. Inner ring seat; 37. Flamethrower head. Detailed Implementation

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a low-voltage current transformer positioning, dismantling and scrapping treatment device, including a base 1, which serves as the basic component of the overall device and is used to assemble and support various processing mechanisms and their subordinate structural components.

[0035] Please see the appendix Figure 4 - Appendix Figure 5The positioning and moving mechanism is located at the top center of the base 1. It is used to perform double positioning and fixing of the low-voltage current transformer that is about to be dismantled, and to move it to the subsequent processing position after the positioning and fixing is completed.

[0036] The positioning and moving mechanism also includes a connecting seat 3. The connecting seat 3 is fixedly connected to the top center of the I-shaped seat 24. A four-jaw chuck 22 is provided at the top center of the connecting seat 3. Multiple stepped positioning seats 19 are arranged in a circular array around the top center of the four-jaw chuck 22. A center seat 20 is provided in the center of the four-jaw chuck 22. An electromagnet disk 28 is provided in the inner center of the connecting seat 3. Multiple lifting columns 26 are slidably connected to the center seat 20. An electromagnet base 27 is provided at the bottom of each lifting column 26.

[0037] Under normal operating conditions, the electromagnet disc 28 and the electromagnet base 27 have opposite magnetic properties. Therefore, under normal conditions, the top of the lifting column 26 on the center seat 20 is flush with the surface of the center seat 20. However, during use, due to the repulsive force between the electromagnet disc 28 and the electromagnet base 27, the lifting column 26 in the hollow position in the middle of the low-voltage current transformer will be pushed upward by the repulsive force. Its upward movement height will not exceed the middle position of the transformer housing. If the height of the lifting column 26 exceeds the middle of the transformer, it will have a certain impact and obstruction on the subsequent front and rear end processing.

[0038] Furthermore, if the corresponding position of the center seat 20 is not hollow, the transformer housing will limit the lifting column 26 to prevent it from moving upward. Only the lifting column 26 located in the hollow position in the middle of the transformer can move upward for internal limiting and fixing.

[0039] When the positioning and moving mechanism is activated, the operator first places the low-voltage current transformer that needs to be dismantled onto the four-jaw chuck 22 on the connecting seat 3. Then, the operator activates the four-jaw chuck 22, causing the stepped positioning seat 19 on the four-jaw chuck 22 to move synchronously towards the center of the four-jaw chuck 22. As the stepped positioning seat 19 moves synchronously, it pushes the low-voltage current transformer on the four-jaw chuck 22 towards the center. After the stepped positioning seat 19 positions the low-voltage current transformer on the four-jaw chuck 22 to its center position, the stepped positioning seat 19 stops moving, thus completing the external fixing and positioning of the low-voltage current transformer.

[0040] After the external positioning of the low-voltage current transformer is completed, the staff controls the electromagnet disk 28 to be energized and its magnetism changed through the remote control device. This makes the electromagnet disk 28 and the electromagnet base 27 at the bottom of the lifting column 26 have the same magnetic properties. Through the principle that like magnetic poles repel and unlike magnetic poles attract, the repulsive force generated between the electromagnet base 27 and the electromagnet disk 28 pushes the lifting column 26 inside the center seat 20 to rise. At this time, the lifting column 26 at the hollow position in the middle of the low-voltage current transformer is not restricted at the top, so the corresponding lifting column 26 on the center seat 20 rises. The rising lifting column 26 fixes the inner middle part of the low-voltage current transformer, thereby completing the fixed positioning process inside the low-voltage current transformer.

[0041] The positioning and moving mechanism includes a moving groove 10, an I-beam 24 is slidably connected inside the moving groove 10, a lead screw 15 is rotatably connected to the middle of one side of the inner end of the moving groove 10, and the other end of the lead screw 15 passes through the middle of the I-beam 24 and is rotatably connected to the middle of the other side of the inner end of the moving groove 10. A servo motor 17 is provided at the middle of one end of the base 1, and the output end of the servo motor 17 passes through the base 1 and is connected to the middle of one end of the lead screw 15.

[0042] After the low-voltage current transformer is fixed both internally and externally, the servo motor 17 on the base 1 is started. The rotating shaft of the servo motor 17 drives the lead screw 15 in the moving slot 10 to rotate synchronously. The lead screw 15 drives the I-beam 24 in the moving slot 10 to move. The I-beam 24 drives the connecting seat 3 on it and the low-voltage current transformer on the four-jaw chuck 22 to move to the end position of the base 1, thereby completing the internal and external positioning and movement of the low-voltage current transformer.

[0043] Please see the appendix Figure 6 The front-end processing mechanism is located at one end of the base 1 and is used for the front-end processing of the low-voltage current transformer before it is dismantled after the positioning and moving mechanism has finished processing.

[0044] The front-end processing mechanism includes a rear mounting base 11. One end of the base 1 is fixedly connected to the rear mounting base 11. A liquid nitrogen storage tank 14 is provided at the bottom rear side of the rear mounting base 11. An electric cylinder 23 is provided at the middle of the top front side of the rear mounting base 11. An annular seat 12 is fixedly connected to the top of the rod of the electric cylinder 23.

[0045] When the front-end processing mechanism is started, the electric cylinder 23 on the rear mounting base 11 is started first. After the electric cylinder 23 is started, its rod is pushed out. At the same time as the rod of the electric cylinder 23 is pushed out, it drives the annular seat 12 at its bottom to move down synchronously. The annular seat 12 moves down until it completely covers the low-voltage current transformer housing on the four-jaw chuck 22 and then stops moving down.

[0046] The front-end processing mechanism also includes a dispersion chamber 29. The dispersion chamber 29 is provided in the middle of the inner side of the annular seat 2 12. An outer spray ring seat 31 is provided in the middle of the inner wall of the annular seat 2 12, and the liquid inlet of the outer spray ring seat 31 is connected to the interior of the dispersion chamber 29. A central column 32 is fixedly connected to the middle of the top of the inner side of the annular seat 2 12, and the interior of the central column 32 is connected to the interior of the dispersion chamber 29. An inner spray ring seat 30 is provided in the middle of the outer wall of the central column 32, and the liquid inlet of the inner spray ring seat 30 is connected to the interior of the central column 32. A liquid nitrogen transfer pump 13 is provided in the lower middle of the rear side of the rear mounting seat 11. A slot 18 is provided in the upper middle of the rear mounting seat 11. The liquid inlet of the liquid nitrogen transfer pump 13 is connected to the interior of the liquid nitrogen storage tank 14 through a connecting pipe. The liquid outlet of the liquid nitrogen transfer pump 13 is connected to the interior of the dispersion chamber 29 through a connecting pipe.

[0047] At this time, the external spray ring seat 31 transports the liquid nitrogen in the liquid nitrogen storage tank 14 to the dispersion chamber 29 of the ring seat 2 12 through the connecting pipe. Then, as the amount of liquid nitrogen in the dispersion chamber 29 increases, after the interior of the dispersion chamber 29 is completely filled with liquid nitrogen, the liquid nitrogen in the dispersion chamber 29 is sprayed through the external spray ring seat 31 to the middle of the metal shell of the low-voltage current transformer. At the same time, the liquid nitrogen in the dispersion chamber 29 is sprayed through the central column 32 and the internal spray ring seat 30 to the inner middle of the metal shell of the low-voltage current transformer. Thus, the liquid nitrogen rapidly cools the middle of the metal shell of the low-voltage current transformer, thereby completing the front-end processing operation of the low-voltage current transformer before dismantling.

[0048] Please see the appendix Figure 7 The back-end processing mechanism is located at the other end of the base 1 and is used for back-end processing of the low-voltage current transformer before it is dismantled after the front-end processing mechanism has finished processing.

[0049] The back-end processing mechanism includes a front mounting base 7. The front mounting base 7 is fixedly connected to one end of the base 1 away from the rear mounting base 11. Gas storage tanks 4 are provided on both sides of the bottom rear side of the front mounting base 7. The lower middle part of the gas storage tanks 4 is connected to each other through a pressure equalization pipe 16. An electric cylinder 6 is provided at the top center of the front side of the front mounting base 7. An annular seat 8 is fixedly connected to the top of the rod of the electric cylinder 6. A dispersion chamber 33 is opened in the middle of the inner side of the annular seat 8.

[0050] When the back-end processing mechanism is started, the electric cylinder 6 on the front mounting base 7 is started first. After the electric cylinder 6 is started, the rod on it is pushed out. At the same time as the rod on the electric cylinder 6 is pushed out, it drives the ring seat 8 at its bottom to move down synchronously. After the ring seat 8 moves and completely covers the housing of the low-voltage current transformer, it stops moving.

[0051] The back-end processing mechanism also includes a solenoid valve 5. A solenoid valve 5 is installed in the lower middle part of the front side of the front mounting seat 7. The middle part of the equalizing pipe 16 is connected to one end of the solenoid valve 5 through a connecting pipe. The other end of the solenoid valve 5 is connected to the inside of the dispersion chamber 2 33 through a connecting pipe. An outer ring seat 34 is installed in the middle of the inner wall of the annular seat 1 8. A central column 2 35 is installed in the middle of the top inner side of the annular seat 1 8. The inside of the central column 2 35 is connected to the inside of the dispersion chamber 2 33. An inner ring seat 36 is installed in the middle of the outer wall of the central column 2 35. Multiple flame heads 37 are arranged in a circumferential array in the middle inner side of both the outer ring seat 34 and the inner ring seat 36.

[0052] Afterwards, the staff opened the solenoid valve 5 on the front mounting seat 7, so that the combustible gas in the gas storage tank 4 entered the dispersion chamber 33 of the annular seat 8 through the equalizing pipe 16, the connecting pipe and the solenoid valve 5 in sequence. Then, the combustible gas in the dispersion chamber 33 entered the outer annular seat 34 and the inner annular seat 36 on the central column 35 respectively. The combustible gas that entered was ignited and sprayed out by the burner head 37, so that the high temperature flame baked the position on the low voltage current transformer shell after the liquid nitrogen freezing and cooling treatment, thus completing the back-end processing operation of the low voltage current transformer before dismantling.

[0053] Please see the appendix Figure 8 The breaking and separating mechanism is located on both sides of the middle part of the base 1 and is used to break and separate the low-voltage current transformer after it has been processed by the back-end processing mechanism.

[0054] The demolition and separation mechanism includes a side mounting base 2. The side mounting base 2 is fixedly connected to the middle of both sides of the base 1. Two electric cylinders 9 are equidistantly arranged on the upper middle of the adjacent side of the side mounting base 2. The top of the rod of the electric cylinder 9 on the same side is fixedly connected to the middle of the corresponding mounting plate 21 on both sides. A triangular prism seat 25 is fixedly connected to the middle of the adjacent side of the mounting plate 21.

[0055] When the dismantling and separation mechanism is started, the electric cylinder 9 on the side mounting base 2 is started first. After the electric cylinder 9 is started, its rod is pushed out to the middle in sync. While the rod on the electric cylinder 9 is pushed out to the middle in sync, it drives the mounting plate 21 on it to move in sync. While the mounting plate 21 is moving, it drives the triangular prism seat 25 on it to move closer to the middle position of the low voltage current transformer housing on the four-jaw chuck 22.

[0056] Then, as the triangular prism seat 25 on the mounting plate 21 moves continuously, the triangular prism seat 25 squeezes the position of the casing of the low-voltage current transformer after it has been processed by the front-end processing mechanism and the back-end processing mechanism. Due to the huge temperature difference generated by the front-end processing mechanism and the back-end processing mechanism on the casing, the structural strength of the metal casing decreases sharply. The casing can be separated into two separate half-shells from the middle position by the triangular prism seat 25 on both sides. The workers can then take out the iron core winding inside, thus completing the dismantling and separation operation of the low-voltage current transformer.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for locating, dismantling, and scrapping low-voltage current transformers, characterized in that, include The base (1) serves as the basic component of the overall device, used to assemble and support various processing mechanisms and their subordinate structural components; The positioning and moving mechanism is located at the top center of the base (1) and is used to perform double positioning and fixing of the low-voltage current transformer that is about to be dismantled, and to move it to the subsequent processing position after the positioning and fixing is completed. The front-end processing mechanism is located at one end of the base (1) and is used for the front-end processing of the low-voltage current transformer before it is dismantled after the positioning and moving mechanism has finished processing. The front-end processing mechanism includes a rear mounting base (11), one end of the base (1) is fixedly connected to the rear mounting base (11), a liquid nitrogen storage tank (14) is provided at the bottom rear side of the rear mounting base (11), an electric cylinder three (23) is provided at the middle of the top front side of the rear mounting base (11), and an annular seat two (12) is fixedly connected to the top of the rod of the electric cylinder three (23). The front-end processing mechanism also includes a dispersion chamber 1 (29). The dispersion chamber 1 (29) is provided in the middle of the inner side of the annular seat 2 (12). An outer spray ring seat (31) is provided in the middle of the inner wall of the annular seat 2 (12), and the liquid inlet of the outer spray ring seat (31) is connected to the interior of the dispersion chamber 1 (29). A central column 1 (32) is fixedly connected to the middle of the top of the inner side of the annular seat 2 (12), and the interior of the central column 1 (32) is connected to the interior of the dispersion chamber 1 (29). 2) An inner spray ring seat (30) is provided in the middle of the outer wall, and the liquid inlet of the inner spray ring seat (30) is connected to the interior of the central column (32). A liquid nitrogen transfer pump (13) is provided in the lower middle part of the rear side of the rear mounting seat (11). A slot (18) is provided in the upper middle part of the rear mounting seat (11). The liquid inlet of the liquid nitrogen transfer pump (13) is connected to the interior of the liquid nitrogen storage tank (14) through a connecting pipe. The liquid outlet of the liquid nitrogen transfer pump (13) is connected to the interior of the dispersion chamber (29) through a connecting pipe. The back-end processing mechanism is located at the other end of the base (1) and is used for back-end processing of the low-voltage current transformer before it is dismantled after the front-end processing mechanism has finished processing. The back-end processing mechanism includes a front mounting base (7). The base (1) is fixedly connected to the front mounting base (7) at one end away from the rear mounting base (11). Gas storage tanks (4) are provided on both sides of the bottom rear side of the front mounting base (7). The lower middle part of the gas storage tanks (4) is connected to each other through a pressure equalization pipe (16). An electric cylinder (6) is provided at the top center of the front side of the front mounting base (7). An annular seat (8) is fixedly connected to the top of the rod of the electric cylinder (6). A dispersion chamber (33) is opened in the middle of the inner side of the annular seat (8). The back-end processing mechanism also includes a solenoid valve (5). The solenoid valve (5) is provided in the lower middle part of the front side of the front mounting seat (7). The middle part of the equalizing pipe (16) is connected to one end of the solenoid valve (5) through a connecting pipe. The other end of the solenoid valve (5) is connected to the interior of the second dispersion chamber (33) through a connecting pipe. An outer ring seat (34) is provided in the middle of the inner wall of the first annular seat (8). A central column (35) is provided in the middle of the top inner side of the first annular seat (8). The interior of the second central column (35) is connected to the interior of the second dispersion chamber (33). An inner ring seat (36) is provided in the middle of the outer wall of the second central column (35). Multiple flame heads (37) are arranged in a circular array in the middle inner side of both the outer ring seat (34) and the inner ring seat (36). The breaking and separating mechanism is set on both sides of the middle part of the base (1) and is used to break and separate the low-voltage current transformer after the back-end processing mechanism.

2. The low-voltage current transformer positioning, dismantling, and scrapping device according to claim 1, characterized in that, The positioning and moving mechanism includes a moving groove (10), an I-beam seat (24) is slidably connected inside the moving groove (10), a lead screw (15) is rotatably connected to the middle of one side of the inner end of the moving groove (10), and the other end of the lead screw (15) passes through the middle of the I-beam seat (24) and is rotatably connected to the middle of the other side of the inner end of the moving groove (10). A servo motor (17) is provided at the middle of one end of the base (1), and the output end of the servo motor (17) passes through the base (1) and is connected to the middle of one end of the lead screw (15).

3. The low-voltage current transformer positioning, dismantling, and scrapping device according to claim 2, characterized in that, The positioning and moving mechanism also includes a connecting seat (3). The connecting seat (3) is fixedly connected to the top center of the I-shaped seat (24). A four-jaw chuck (22) is provided at the top center of the connecting seat (3). Multiple stepped positioning seats (19) are arranged in a circular array around the top center of the four-jaw chuck (22). A center seat (20) is provided in the center of the four-jaw chuck (22). An electromagnet disc (28) is provided in the inner center of the connecting seat (3). Multiple lifting columns (26) are slidably connected to the center seat (20). An electromagnet base (27) is provided at the bottom of each lifting column (26).

4. The low-voltage current transformer positioning, dismantling, and scrapping device according to claim 1, characterized in that, The breaking and separating mechanism includes a side mounting base (2). The side mounting base (2) is fixedly connected to the middle of both sides of the base (1). Two electric cylinders (9) are equidistantly arranged on the upper middle of the adjacent side of the side mounting base (2). The top of the rod of the electric cylinder (9) on the same side is fixedly connected to the middle of the corresponding mounting plate (21) on both sides. A triangular prism seat (25) is fixedly connected to the middle of the adjacent side of the mounting plate (21).

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