A low-voltage current transformer automatic dismantling device

Abstract

The application relates to the field of electric equipment scrapping treatment, and discloses a low-voltage current transformer automatic breaking device for scrapping, which comprises a base, a vertical plate fixedly installed at the top rear side of the base, guide rails fixedly connected to the front ends of the vertical plate, the front ends of the guide rails movably installed on the two sides of a mounting frame, a shell fixedly connected to the front end upper side of the mounting frame, threaded rods fixedly connected to the two sides in the shell, rope rollers threadedly connected to the outer diameters of the threaded rods, pull ropes wound around the outer diameters of the rope rollers, cylinder bodies arranged on the two sides of the front end of the mounting frame, counterweights movably arranged on the lower sides in the cylinder bodies, and hammers fixedly connected to the bottom ends of the counterweights. The double-side simultaneous hammering type breaking method for positioning and clamping the current transformer can not only improve the breaking efficiency, but also has higher safety, and the iron core winding in the equipment is not damaged during breaking, so that subsequent recovery is facilitated.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment scrapping and disposal, specifically to an automatic dismantling device for scrapping low-voltage current transformers. Background Technology

[0002] A low-voltage current transformer is a device used to measure and monitor current. It is commonly used in power systems and electricity metering. The basic principle of a low-voltage current transformer is similar to that of a traditional current transformer. It can transform the high current of a high-current transformer (e.g., 100A or 200A) into an operable low current (typically 1A or 5A) to make it easier and safer to measure and process current signals. Low-voltage current transformers are an indispensable component of power systems. By converting high current into a processable low current signal, they support current measurement, control, and protection, ensuring the efficient operation and safety of the power system.

[0003] Low-voltage current transformers mainly consist of a casing and an internal iron core winding. Since the casing is mostly a one-piece casing, it usually needs to be forcibly dismantled when it is scrapped. Currently, there are two main methods of dismantling. One is manual dismantling using hammers and crowbars, which involves placing the equipment under a hydraulic press and using the hydraulic press to crush the casing. However, both methods have drawbacks. First, manual dismantling is extremely time-consuming, labor-intensive, and inefficient. Second, hydraulic dismantling requires manual adjustment of the equipment's position, which not only poses safety hazards but is also inefficient. The iron core winding inside the current transformer may also be damaged by the hydraulic press, affecting subsequent recycling. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic dismantling device for scrapped low-voltage current transformers. This device solves the problems of manual dismantling being extremely time-consuming and labor-intensive, inefficient, and posing safety hazards with hydraulic dismantling. Furthermore, the internal iron core windings of the current transformer may be damaged by the hydraulic press, affecting subsequent recycling.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic dismantling device for scrapping low-voltage current transformers, comprising a base, a vertical plate fixedly installed on the rear top of the base, guide rails fixedly connected to both sides of the front end of the vertical plate, the front ends of the guide rails being movably installed on both sides of a mounting frame, a housing fixedly connected to the upper front end of the mounting frame, threaded rods fixedly connected to both sides of the interior of the housing, rope rollers threadedly connected to the outer diameter of the threaded rods, and pull ropes wound around the outer diameter of the rope rollers, cylindrical bodies provided on both sides of the front end of the mounting frame, counterweights movably arranged on the lower interior of each cylindrical body, and hammers fixedly connected to the bottom ends of each counterweight.

[0006] Preferably, the inner ends of the threaded rod are movably connected to both ends of the short shaft, a chuck is fixedly connected to the outer diameter of the short shaft, and a lever is fixedly connected to both sides of the upper part of the chuck. Short columns are fixedly connected to the upper side of the inner end of the rope roller at positions corresponding to the levers. A worm gear is fixedly installed on the outer diameter of the chuck. A first motor is fixedly installed at the bottom of the housing, and a worm is fixedly installed at the drive end of the first motor. The inner ends of the worm and the worm gear are meshed together.

[0007] Preferably, T-shaped blocks are fixedly connected to the upper and lower rear ends of the cylinder, and T-shaped grooves are provided at the front end of the mounting bracket at positions corresponding to the T-shaped blocks. The rear ends of the T-shaped blocks are movably disposed inside the corresponding T-shaped grooves.

[0008] Preferably, the inner wall of the cylinder is provided with spiral grooves, and both ends of the counterweight are fixedly connected with movable pins, with the outer sides of the movable pins being movably disposed inside the spiral grooves on the corresponding sides.

[0009] Preferably, the top of each counterweight is movably disposed at the bottom of the turntable, the top of each turntable is connected to the top wall of the cylinder by a compression spring, and the end of each pull rope passes through the outer wall of the corresponding side of the shell and the cylinder and is fixedly connected to the middle of the top of the turntable.

[0010] Preferably, each inner end of the cylinder is fixedly connected to a rack plate, and the two rack plates are staggered. A second motor is fixedly installed at the center of the front end of the mounting frame. A gear is fixedly installed at the drive end of the second motor. The upper and lower sides of the gear are meshed with the inner ends of the rack plates.

[0011] Preferably, spring rods are fixedly installed on one side of the top of the cylinder and on both sides of the bottom of the shell. Tensioning wheels are fixedly installed at the ends of the spring rods, and the outer diameter of the pull ropes passes over the outer diameter of the corresponding tensioning wheels. A hydraulic cylinder is fixedly installed on the top of the upright plate, and the drive end of the hydraulic cylinder is fixedly connected to the middle of the top of the shell.

[0012] Preferably, a light rod is fixedly connected to both sides of the bottom of the upright plate, and a movable block is movably installed on the outer diameter of both sides of the light rod. A clamping block is fixedly connected to the inner end of each movable block. A telescopic cylinder is fixedly installed on the lower rear end of the upright plate, and the driving end of the telescopic cylinder is fixedly connected to the rear end of the movable block.

[0013] Preferably, bearing frames are fixedly connected to both sides of the base, and flywheels are movably connected to the top of each bearing frame. Connecting rods are movably connected to both ends of the movable block, and the ends of the connecting rods are movably disposed on the outer side of the corresponding flywheel.

[0014] Preferably, a fixed seat is fixedly connected to the top center of the base, a placement platform is movably installed on the top of the fixed seat, the bottom center of the placement platform is connected to the bottom wall of the fixed seat via a rotating rod, a third motor is fixedly installed on one side of the inside of the fixed seat, a driving bevel gear is fixedly connected to the drive end of the third motor, a driven bevel gear is fixedly installed on the outer diameter of the rotating rod, and the bottom side of the driven bevel gear is meshed with the top side of the driving bevel gear, and a control panel is fixedly installed at the front end of the base.

[0015] Working principle: First, the worker places the scrapped low-voltage current transformer to be dismantled on the placement platform. Then, the telescopic cylinder is activated, which controls the internal piston rod to extend, driving the rear movable block forward. As the rear movable block moves forward, it drives the connecting rods on both sides to follow suit. The end of the connecting rod pushes the flywheel to rotate, and the rotating flywheel drives the front connecting rod to move. The front connecting rod then pulls the front movable block inward, thus achieving simultaneous inward movement of both movable blocks, driving the clamping block at the inner end to move, thereby clamping the current transformer. This improves the stability during subsequent dismantling. Then, the second motor is activated, driving the gear to rotate. The rotating gear meshes with the upper and lower rack plates for transmission. This causes both cylinders to move inward or outward simultaneously. By controlling the movement of the cylinders, the hammer at the bottom of the cylinder is aligned with the location to be breached. Then, the third motor is activated, driving the worm gear to rotate. Through the meshing transmission between the worm gear and the worm wheel, the chuck and short shaft rotate slowly. The rotating chuck drives the lever to move, and the short column abuts against one side of the lever, so the rotating lever drives the short column to move together, thereby driving the rope roller to rotate. The direction of the rope roller's rotation retracts the pull rope. When the pull rope moves, it pulls the turntable upward, thereby moving the counterweight and hammer to the upper inside of the cylinder. At the same time, the turntable compresses the compression spring, accumulating a large amount of elastic potential energy. As the rope roller continues to rotate, due to the middle of the rope roller and the thread... As the levers engage, the rope rollers on both sides continuously move away from the central chuck, and the contact area between the lever block and the short column gradually decreases until the short column disengages from the lever block's restraint. At this point, the tension in the compression spring caused by the rope disappears, and the elastic potential energy is rapidly released. Combined with the counterweight's own weight, the counterweight falls rapidly. During its descent, it also rotates due to the influence of the spiral groove and the movable pin. This high-speed falling and rotating counterweight, along with the hammer, strikes the current transformer's outer casing. The collision causes a sudden change in the hammer's momentum, generating a greater impact force that shatters the current transformer's casing, achieving a demolition effect. The simultaneous impact of the two hammers at both ends of the current transformer's casing improves demolition efficiency and also provides a certain degree of stability. To achieve the desired effect, after the impact, the pull rope will quickly pull the rope roller to rotate in the opposite direction. Through the meshing of the middle of the rope roller with the threaded rod, the rope roller will be reset, and the short column will be limited again by the push block. This cycle repeats to achieve continuous impact function. After the side is broken, the internal piston rod is retracted by the telescopic cylinder, and the two clamps will release their clamping effect on the current transformer. At this time, the third motor is started, and the third motor drives the active bevel gear to rotate. The rotating active bevel gear meshes with the driven bevel gear, driving the rotating rod to rotate, thereby driving the placement platform to rotate. After the current transformer is adjusted to a suitable position, it is clamped again, and then the impact breaking work can be carried out again until the outer shell of the current transformer is completely broken.

[0016] This invention provides an automatic dismantling device for scrapped low-voltage current transformers. It has the following beneficial effects:

[0017] 1. This invention employs a dual-sided simultaneous hammer-type dismantling method after positioning and clamping the current transformer, which not only improves dismantling efficiency but also enhances safety. The dismantling process does not damage the internal iron core windings of the equipment, facilitating subsequent recycling.

[0018] 2. This invention features a rotatable placement platform and a height-adjustable hammer-type demolition structure. The distance between the two cylinders and the hammer is adjustable, which can accommodate the demolition of scrapped current transformers of different sizes, improve work efficiency, and better meet the needs of demolition of scrapped current transformers. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the shell in this invention;

[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0023] Figure 5 This is a schematic diagram of the internal structure of the cylinder in this invention;

[0024] Figure 6 This is a schematic diagram of the structure of the movable block in this invention;

[0025] Figure 7 This is a schematic diagram of the internal structure of the fixing base in this invention;

[0026] Figure 8 This is a rear perspective view of the present invention.

[0027] The components are as follows: 1. Base; 2. Vertical plate; 3. Guide rail; 4. Mounting bracket; 5. Housing; 6. Threaded rod; 7. Rope roller; 8. Pull rope; 9. Short shaft; 10. Chuck; 11. Pulley; 12. Short column; 13. Worm gear; 14. First motor; 15. Worm; 16. Cylinder; 17. T-slot; 18. T-block; 19. Counterweight; 20. Hammer; 21. Spiral groove; 22. Movable pin; 23. Turntable; 24. Pressure... 25. Retractable spring; 26. Rack plate; 27. Second motor; 28. Gear; 29. ​​Spring rod; 30. Tensioning wheel; 31. Hydraulic cylinder; 32. Smooth rod; 33. Clamping block; 34. Telescopic cylinder; 35. Bearing bracket; 36. Flywheel; 37. Connecting rod; 38. Fixed base; 39. Placement platform; 40. Rotating rod; 41. Third motor; 42. Driving bevel gear; 43. Driven bevel gear; 44. Control panel. Detailed Implementation

[0028] 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.

[0029] Example:

[0030] Please see the appendix Figure 1 -Appendix Figure 8 This invention provides an automatic dismantling device for scrapping low-voltage current transformers, such as... Figure 1 As shown, the device includes a base 1, with a vertical plate 2 fixedly mounted on the rear top of the base 1. The vertical plate 2 is welded to the rear top of the base 1. Guide rails 3 are fixedly connected to both sides of the front end of the vertical plate 2. The front ends of the guide rails 3 are movably mounted on both sides of the mounting frame 4, allowing the mounting frame 4 to move up and down along the guide rails 3 for easy adjustment of the distance between the hammer 20 and the part. A housing 5 is fixedly connected to the upper front end of the mounting frame 4 for protection. Threaded rods 6 are fixedly connected to both sides of the interior of the housing 5. The threaded rods 6 are non-rotatable, and rope rollers 7 are threaded onto the outer diameter of each threaded rod 6. The rope rollers 7 pass through the middle of the... The threaded sleeve is connected to the threaded rod 6. When the rope roller 7 rotates, it will also mesh with the threaded rod 6, thereby moving left and right. The outer diameter of the rope roller 7 is wound with a pull rope 8. With the rotation of the rope roller 7, it can provide tension to the pull rope 8. The front end of the mounting frame 4 is provided with a cylinder 16 on both sides. The cylinder 16 is cylindrical in shape. The lower side of the inside of the cylinder 16 is movably provided with a counterweight 19. The counterweight 19 has a certain weight. The bottom end of the counterweight 19 is fixedly connected with a hammer 20, which is detachable and is used to hammer the main structure of the current transformer shell. It can also be a blade structure, which can be replaced as needed.

[0031] In this embodiment, the inner ends of the threaded rod 6 are movably connected to both ends of the short shaft 9. The short shaft 9 can rotate. A chuck 10 is fixedly connected to the outer diameter of the short shaft 9. The chuck 10 is disc-shaped and can rotate with the short shaft 9. Both sides of the upper part of the chuck 10 are fixedly connected to the lever blocks 11. Short columns 12 are fixedly connected to the upper side of the inner end of the rope roller 7 at positions corresponding to the lever blocks 11. The short columns 12 are attached to one side of the lever blocks 11. When the lever blocks 11 move, they will drive the short columns 12 to move together. A worm gear 13 is fixedly installed on the outer diameter of the chuck 10. A first motor 14 is fixedly installed at the bottom of the housing 5. A worm 15 is fixedly installed at the drive end of the first motor 14. The inner ends of the worm gear 15 and the worm wheel 13 are meshed and connected. By driving the worm gear 15 to rotate through the first motor 14, the worm wheel 13, the chuck 10 and the short shaft 9 can be rotated together.

[0032] Furthermore, T-blocks 18 are fixedly connected to the upper and lower rear ends of the cylinder 16. T-grooves 17 are provided at the front end of the mounting bracket 4 at the positions corresponding to the T-blocks 18. The rear ends of the T-blocks 18 are movably disposed inside the corresponding T-grooves 17. The shapes of the T-blocks 18 and the T-grooves 17 are both T-shaped, which can improve the stability of the cylinder 16 when it moves.

[0033] Furthermore, the inner wall of the cylinder 16 is provided with spiral grooves 21, which are spiral in shape. Both ends of the counterweight 19 are fixedly connected with movable pins 22. The outer sides of the movable pins 22 are movably disposed inside the corresponding spiral grooves 21. By setting the movable pins 22 and spiral grooves 21, the counterweight 19 can rotate when moving up and down, thereby generating a greater impact force.

[0034] Furthermore, the top of each counterweight 19 is movably mounted at the bottom of the turntable 23. The top of each counterweight 19 is connected to the bottom of the turntable 23 via a bearing seat. During the up-and-down movement of the turntable 23, the normal rotation of the counterweight 19 is not hindered. The top of each turntable 23 is connected to the top wall of the cylinder 16 via a compression spring 24. After compression, the compression spring 24 will accumulate a large elastic force, which will quickly push the counterweight 19 down after release. The ends of the pull ropes 8 pass through the corresponding side shell 5 and the outer wall of the cylinder 16 and are fixedly connected to the top center of the turntable 23. By pulling the turntable 23 upward through the pull ropes 8, the compression springs 24 are compressed.

[0035] Furthermore, rack plates 25 are fixedly connected to the inner ends of the cylinder 16, and the two rack plates 25 are staggered. A second motor 26 is fixedly installed at the middle of the front end of the mounting frame 4. A gear 27 is fixedly installed at the drive end of the second motor 26. The upper and lower sides of the gear 27 are meshed with the inner ends of the rack plates 25. The second motor 26 drives the gear 27 to rotate, which drives the rack plates 25 to move inward or outward at the same time, thereby driving the two cylinders 16 to move inward or outward at the same time, so as to realize the adjustment of the distance between the cylinders 16.

[0036] Specifically, the second motor 26 is started, driving the gear 27 to rotate. The rotating gear 27 meshes with the upper and lower rack plates 25, thereby causing the two cylinders 16 to move inward or outward simultaneously. By controlling the movement of the cylinders 16, the hammer 20 at the bottom of the cylinder 16 is aligned with the position to be broken. Then, the first motor 14 is started, driving the worm gear 15 to rotate. Through the meshing of the worm gear 15 with the worm wheel 13, the chuck 10 and the short shaft 9 are driven to rotate slowly. The rotating disc 10 drives the lever 11 to move, and the short column 12 abuts against one side of the lever 11. Therefore, the rotating lever 11 drives the short column 12 to move together, thereby driving the rope roller 7 to rotate. The direction of the rotation of the rope roller 7 will retract the pull rope 8. When the pull rope 8 moves, it will pull the turntable 23 upward, thereby moving the counterweight 19 and the hammer 20 to the upper inside of the cylinder 16. At the same time, the turntable 23 will compress the compression spring 24, accumulating a large amount of elastic potential energy. When the rope roller 7 continues to rotate, because the middle part of the rope roller 7 is engaged with the threaded rod 6, Therefore, the rope rollers 7 on both sides will continuously move away from the chuck 10 in the middle, and the contact area between the lever 11 and the short column 12 will become smaller and smaller until the short column 12 is freed from the restriction of the lever 11. At this time, the tension of the rope 8 on the compression spring 24 disappears, and the elastic potential energy is released rapidly. Combined with the weight of the counterweight 19 itself, the counterweight 19 falls rapidly. During the fall, it will also rotate due to the influence of the spiral groove 21 and the movable pin 22. That is, the high-speed falling and rotating counterweight 19 and the hammer 20 strike the outer shell of the current transformer. The collision causes a sudden change in the momentum of the hammer, resulting in a greater impact force that shatters the casing of the current transformer, achieving a demolition effect. The two hammers 20 strike the casing of the current transformer simultaneously, which not only improves the demolition efficiency but also provides a certain degree of stability. After the impact, the pull rope 8 will quickly pull the rope roller 7 to rotate in the opposite direction. Through the meshing of the middle of the rope roller 7 with the threaded rod 6, the rope roller 7 will be reset, and the short column 12 will be limited again by the push block 11. This cycle repeats to achieve a continuous impact function.

[0037] Furthermore, spring rods 28 are fixedly installed on one side of the top of the cylinder 16 and on both sides of the bottom of the shell 5. Tensioning wheels 29 are fixedly installed at the ends of the spring rods 28, and the outer diameter of the pull rope 8 is wrapped around the outer diameter of the corresponding tensioning wheel 29. The spring rods 28 can tension the wheels 29 so that the pull rope 8 can always be kept taut. A hydraulic cylinder 30 is fixedly installed on the top of the vertical plate 2. The drive end of the hydraulic cylinder 30 is fixedly connected to the middle of the top of the shell 5. The hydraulic cylinder 30 can control the up and down movement of the shell 5, the mounting bracket 4 and the cylinder 16, thereby adjusting the height between the hammer 20 and the current transformer, which can easily adapt to workpieces of different sizes.

[0038] Furthermore, a guide rod 31 is fixedly connected to both sides of the bottom of the upright plate 2. Movable blocks 32 are movably installed on the outer diameter of both sides of the guide rod 31. Clamping blocks 33 are fixedly connected to the inner ends of the movable blocks 32 for clamping the main structure of the workpiece. A telescopic cylinder 34 is fixedly installed on the lower rear end of the upright plate 2, and the driving end of the telescopic cylinder 34 is fixedly connected to the rear end of the movable block 32. Bearing brackets 35 are fixedly connected to both sides of the base 1. Flywheels 36 are movably connected to the top of the bearing brackets 35. Connecting rods 37 are movably connected to both ends of the movable block 32. The ends of the connecting rods 37 are movably set on the outer side of the corresponding flywheel 36. The rotating flywheel 36 will simultaneously pull or push the connecting rod 37, thereby controlling the movement of the movable block 32.

[0039] Specifically, the staff places the scrapped low-voltage current transformer to be dismantled on the placement platform 39, and then activates the telescopic cylinder 34. The telescopic cylinder 34 controls the internal piston rod to extend, driving the rear movable block 32 to move forward. When the rear movable block 32 moves forward, it will drive the connecting rods 37 on both sides to move accordingly. The end of the connecting rod 37 will push the flywheel 36 to rotate. The rotating flywheel 36 will drive the front connecting rod 37 to move. The front connecting rod 37 will pull the front movable block 32 to move inward, thereby realizing that both movable blocks 32 move inward at the same time, driving the clamping block 33 at the inner end to move, thereby clamping the current transformer, which can improve the stability during the subsequent dismantling.

[0040] Furthermore, a fixed base 38 is fixedly connected to the top center of the base 1, and a placement platform 39 is movably installed on the top of the fixed base 38. The bottom center of the placement platform 39 is connected to the bottom wall of the fixed base 38 via a rotating rod 40. A third motor 41 is fixedly installed on one side inside the fixed base 38. A driving bevel gear 42 is fixedly connected to the drive end of the third motor 41. A driven bevel gear 43 is fixedly installed on the outer diameter of the rotating rod 40, and the bottom side of the driven bevel gear 43 is meshed with the top side of the driving bevel gear 42. A control panel 44 is fixedly installed at the front end of the base 1.

[0041] Specifically, the third motor 41 is started, which drives the active bevel gear 42 to rotate. The rotating active bevel gear 42 meshes with the driven bevel gear 43, driving the rotating rod 40 to rotate, thereby driving the placement platform 39 to rotate. After the current transformer is adjusted to a suitable position, it is clamped again, and then the impact dismantling work can be carried out again until the casing of the current transformer is completely dismantled.

[0042] 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 alterations 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. An automatic dismantling device for scrapping low-voltage current transformers, comprising a base (1), characterized in that, A vertical plate (2) is fixedly installed on the rear side of the top of the base (1). Guide rails (3) are fixedly connected to both sides of the front end of the vertical plate (2). The front ends of the guide rails (3) are movably installed on both sides of the mounting frame (4). A housing (5) is fixedly connected to the upper side of the front end of the mounting frame (4). Threaded rods (6) are fixedly connected to both sides of the interior of the housing (5). Rope rollers (7) are threadedly connected to the outer diameter of the threaded rods (6). Pull ropes (8) are wound around the outer diameter of the rope rollers (7). A cylinder (16) is provided on both sides of the front end of the mounting frame (4). A counterweight (19) is movably provided on the lower side of the interior of the cylinder (16). A hammer (20) is fixedly connected to the bottom end of the counterweight (19). The inner ends of the threaded rod (6) are movably connected to both ends of the short shaft (9). A chuck (10) is fixedly connected to the outer diameter of the short shaft (9). A lever (11) is fixedly connected to both sides of the upper part of the chuck (10). A short column (12) is fixedly connected to the upper side of the inner end of the rope roller (7) at a position corresponding to the lever (11). A worm gear (13) is fixedly installed on the outer diameter of the chuck (10). A first motor (14) is fixedly installed at the bottom of the housing (5). A worm (15) is fixedly installed at the drive end of the first motor (14). The inner ends of the worm (15) and the worm gear (13) are meshed and connected. T-shaped blocks (18) are fixedly connected to the upper and lower rear ends of the cylinder (16). T-shaped grooves (17) are provided at the front end of the mounting bracket (4) corresponding to the T-shaped blocks (18). The rear ends of the T-shaped blocks (18) are movably disposed inside the corresponding T-shaped grooves (17). The inner wall of the cylinder (16) is provided with spiral grooves (21), and the two ends of the counterweight (19) are fixedly connected with movable pins (22). The outer sides of the movable pins (22) are movably arranged inside the spiral grooves (21) on the corresponding sides. The top of each counterweight (19) is movably mounted at the bottom of the turntable (23). The top of each turntable (23) is connected to the top wall of the cylinder (16) by a compression spring (24). The ends of each pull rope (8) pass through the outer walls of the corresponding side of the shell (5) and the cylinder (16) and are fixedly connected to the top center of the turntable (23).

2. The automatic dismantling device for scrapping low-voltage current transformers according to claim 1, characterized in that, The inner end of the cylinder (16) is fixedly connected to a rack plate (25) and the two rack plates (25) are staggered. The front middle of the mounting frame (4) is fixedly installed with a second motor (26). The drive end of the second motor (26) is fixedly installed with a gear (27). The upper and lower sides of the gear (27) are meshed with the inner end of the rack plate (25).

3. The automatic dismantling device for scrapping low-voltage current transformers according to claim 1, characterized in that, Spring rods (28) are fixedly installed on one side of the top of the cylinder (16) and on both sides of the bottom of the shell (5). Tensioning wheels (29) are fixedly installed at the ends of the spring rods (28), and the outer diameter of the pull ropes (8) passes around the outer diameter of the tensioning wheels (29) on the corresponding side. A hydraulic cylinder (30) is fixedly installed on the top of the upright plate (2), and the driving end of the hydraulic cylinder (30) is fixedly connected to the middle of the top of the shell (5).

4. The automatic dismantling device for scrapping low-voltage current transformers according to claim 1, characterized in that, Both sides of the bottom of the upright plate (2) are fixedly connected to a light rod (31). Movable blocks (32) are movably installed on both outer diameters of the light rod (31). Clamping blocks (33) are fixedly connected to the inner ends of the movable blocks (32). A telescopic cylinder (34) is fixedly installed on the lower rear end of the upright plate (2), and the driving end of the telescopic cylinder (34) is fixedly connected to the rear end of the movable block (32).

5. The automatic dismantling device for scrapping a low-voltage current transformer according to claim 4, characterized in that, The base (1) is fixedly connected to both sides of a bearing frame (35), and the top of the bearing frame (35) is movably connected to a flywheel (36). The two ends of the movable block (32) are movably connected to a connecting rod (37), and the ends of the connecting rod (37) are movably disposed on the outer side of the flywheel (36) on the corresponding side.

6. The automatic dismantling device for scrapping low-voltage current transformers according to claim 1, characterized in that, A fixed seat (38) is fixedly connected to the top center of the base (1). A placement platform (39) is movably installed on the top of the fixed seat (38). The bottom center of the placement platform (39) is connected to the bottom wall of the fixed seat (38) via a rotating rod (40). A third motor (41) is fixedly installed on one side inside the fixed seat (38). A driving bevel gear (42) is fixedly connected to the driving end of the third motor (41). A driven bevel gear (43) is fixedly installed on the outer diameter of the rotating rod (40), and the bottom side of the driven bevel gear (43) is meshed with the top side of the driving bevel gear (42). A control panel (44) is fixedly installed at the front end of the base (1).

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