Rapid gear identification and adjustment device for oil-immersed distribution transformer

Abstract

The invention relates to the technical field of transformer gear adjustment, in particular to an oil-immersed distribution transformer gear rapid identification and adjustment device which comprises a transformer body, and a shielding cover is installed on the outer side wall of the transformer body. The linkage action of high-pressure blowing impurity removal and lubricating treatment is automatically triggered, foreign matter hindering rotation can be removed without manual intervention, friction resistance is reduced, the defects that a traditional device cannot perform autonomous treatment and depends on manual maintenance when being jammed are effectively overcome, continuity and high efficiency of voltage regulation operation are guaranteed, the whole gear shifting treatment process is completely automatic, and the working efficiency is improved. Dependence on manual climbing operation is thoroughly eliminated, the safety risk of manual high-altitude operation is eliminated, hysteresis of traditional manual maintenance is avoided, continuity and stability of the intelligent power grid industry are guaranteed, and the automation level and the actual operation efficiency of gear switching are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of transformer tap position adjustment technology, specifically to a device for rapid identification and adjustment of tap positions in an oil-immersed distribution transformer. Background Technology

[0002] An oil-immersed transformer is a power transformer in which the iron core and windings are immersed in insulating oil. The insulating oil has the functions of insulation, heat dissipation and arc extinguishing. The heat generated by the iron core and windings during operation is transferred to the tank wall through the convection circulation of the oil and then dissipated into the air. It is widely used in the smart grid industry.

[0003] In the operation of oil-immersed transformers, the tap changer is the core component for voltage regulation. The reliability of its tap position switching directly affects the power supply stability and quality of the power system. Currently, tap position switching operations still largely rely on manual operation, especially for transformer tap changers installed at high altitudes. Operators need to use climbing equipment to manually switch taps on-site. Climbing operations themselves carry the risk of falling, and the working environment is mostly outdoors at high altitudes, affected by natural environmental factors such as wind, rain, and snow, further exacerbating the operational dangers. At the same time, in actual operation, the rotating parts of the tap changer are prone to accumulating dust and oil due to long-term use, or the rotational resistance may increase due to lubrication failure, leading to jamming. When manually adjusting the tap position, due to limited human perception or lack of operator experience, some operators may still force the tap changer to rotate when jamming occurs without taking appropriate measures. This not only fails to achieve tap position switching but also easily causes damage to core components such as the tap changer and transmission rod due to overload, exacerbating equipment failure. Summary of the Invention

[0004] The purpose of this invention is to provide a device for rapid identification and adjustment of the tap position of an oil-immersed distribution transformer, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rapid identification and adjustment device for the tap position of an oil-immersed distribution transformer, comprising a transformer body, a shield installed on the outer wall of the transformer body, a torque anomaly handling mechanism on the transformer body, the torque anomaly handling mechanism including a boss on the transformer body, an inner sleeve inside the boss, a tap changer rotatably connected to the inner sleeve, an air jet ring fixedly connected to the outer wall of the boss, multiple branch pipes connected inside the air jet ring, one end of the multiple branch pipes away from the air jet ring connected to the inside of the inner sleeve, an air jet pipe connected to the air jet ring, a flow box provided on the air jet pipe, a sliding plate slidably connected through the inside of the flow box, an air hole provided on the sliding plate, a return spring fixedly connected to the sliding plate, the other end of the return spring fixedly connected to the outer wall of the flow box, a one-way plate rotatably connected to the end of the sliding plate, a limit plate fixedly connected to the one-way plate, and a roller rotatably connected to the end of the one-way plate.

[0006] Preferably, a lubrication collar is installed on the boss, a limiting member is fixedly connected to the lubrication collar, a sliding plate is slidably connected to the limiting member, a pressing spring is fixedly connected inside the sliding plate, an outward pushing member is fixedly connected to the outer wall of the sliding plate, and a round rod is fixedly connected to the outer wall of the sliding plate.

[0007] Preferably, a rubber piston is slidably connected inside the lubrication ring, and slide rods are fixedly connected to both sides of the rubber piston. The slide rods slide through to the outside of the lubrication ring, and a return spring is sleeved on the outer wall of the slide rod. A top plate is fixedly connected to the ends of the two slide rods away from the lubrication ring. Multiple nozzles are connected to the bottom of the lubrication ring, and nozzles are connected to the ends of the multiple nozzles. The nozzles have nozzle openings.

[0008] Preferably, a bracket is fixedly connected to the outer side wall of the transformer body, an electric rotating shaft is fixedly connected to the bracket, a torque detector is provided on the electric rotating shaft, a rotating rod is installed at the output end of the electric rotating shaft, the end of the rotating rod away from the electric rotating shaft is fixedly connected to the tap changer, and a locking ring is provided on the rotating rod.

[0009] Preferably, a limiting rail is fixedly connected to the outer wall of the jet pipe, and a locking mechanism is slidably provided on the limiting rail.

[0010] Preferably, the locking mechanism includes a driving member slidably connected inside the limiting rail, and a pressure spring is fixedly connected to the outer wall of the driving member, with the end of the pressure spring away from the driving member fixedly connected to the inner wall of the limiting rail.

[0011] Preferably, a locking rod is fixedly connected to the driving member, a side plate is fixedly connected to the side wall of the driving member, an insertion hole is provided on the side plate, an mounting plate is fixedly connected to the outer side wall of the limiting rail, an insertion rod corresponding to the insertion hole is slidably connected to the mounting plate, and a tail plate is fixedly connected to the outer side wall of the insertion rod.

[0012] Preferably, a high-pressure gas tank is connected to the end of the jet pipe away from the jet ring, multiple position indicators are fixedly connected to the outer wall of the lubrication sleeve, a pointer is fixedly connected to the outer wall of the tap changer, and torsion spring shafts are provided on both sides of the end of the branch pipe, with a cover plate on each torsion spring shaft.

[0013] Preferably, a plurality of telescopic rods are fixedly connected to the outer side wall of the lubrication collar, the plurality of telescopic rods pass through the shift plate, and an upper push plate is provided at the end of the plurality of telescopic rods, the upper push plate being located directly below the tail plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This device identifies jamming conditions in real time through torque detection and automatically triggers the linkage action of high-pressure blowing for impurity removal and lubrication. It can remove foreign objects that hinder rotation and reduce frictional resistance without manual intervention. It effectively solves the drawbacks of traditional devices that cannot handle jamming autonomously and rely on manual maintenance. It ensures the continuity and efficiency of voltage regulation operations. The entire gear shifting process is fully automated, completely eliminating the dependence on manual operation at height. It not only eliminates the safety risks of manual high-altitude operations, but also avoids the lag of traditional manual maintenance, ensuring the continuity and stability of the smart grid industry and greatly improving the automation level and actual operation efficiency of gear shifting.

[0015] 2. If the device still cannot rotate normally after the tap changer is lubricated by blowing air, it will automatically trigger the locking mechanism. This will limit the rotation of the lever and the tap changer to prevent overload damage to the components caused by forced drive. At the same time, it will clearly remind manual maintenance, which will reduce equipment maintenance costs and improve operational safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a partial structural diagram of the present invention. Figure 1 ; Figure 4 for Figure 3 Enlarged view of A in the middle; Figure 5This is a schematic diagram of the lubrication ring structure of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the lubrication ring of the present invention; Figure 7 This is a partial structural diagram of the present invention. Figure 2 ; Figure 8 for Figure 7 Enlarged view of B in the middle; Figure 9 for Figure 7 Enlarged view of C; Figure 10 This is a partial structural diagram of the present invention. Figure 3 ; Figure 11 This is a schematic diagram of the planar structure of the present invention; Figure 12 This is a schematic diagram of the planar structure of the present invention. Figure 1 .

[0017] The attached diagram lists the components represented by each number as follows: 1. Transformer body; 2. Shielding cover; 3. Bracket; 4. Electric rotating shaft; 5. Rotating rod; 6. Sliding rod; 7. Locking ring; 8. Gear position indicator; 9. Pointer; 10. Lubrication collar; 11. Spray pipe; 12. Nozzle; 13. Multi-section telescopic rod; 14. Round rod; 15. Moving plate; 16. Pressing spring; 17. Limiting component; 18. Pushing component; 19. Rubber piston; 20. Top plate; 21. Return spring; 22. Nozzle; 23. Tap changer; 24. 25. Jet pipe; 26. Flow box; 27. Slide plate; 28. Air hole; 29. ​​Return spring; 30. One-way plate; 31. Roller; 32. Limiting base plate; 33. Push plate; 34. Limiting rail; 35. Drive component; 36. Pressure spring; 37. Side plate; 38. Insert rod; 39. Locking rod; 40. Tail plate; 41. Boss; 42. Branch pipe; 43. Inner sleeve; 44. Jet ring; 45. High-pressure air tank; 46. Torsion spring shaft; 47. Cover plate. Detailed Implementation

[0018] The technical solutions of 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.

[0019] Example 1: Please refer to Figure 1 - Figure 12A device for rapid tap position identification and adjustment of an oil-immersed distribution transformer includes a transformer body 1, a shield 2 installed on the outer wall of the transformer body 1, and a torque anomaly handling mechanism on the transformer body 1. The torque anomaly handling mechanism includes a boss 40 on the transformer body 1, an inner sleeve 42 inside the boss 40, a tap changer 23 rotatably connected to the inner sleeve 42, and an air jet ring 43 fixedly connected to the outer wall of the boss 40. Multiple branch pipes 41 are connected inside the air jet ring 43, and the multiple branch pipes 41 are located away from... One end of the jet ring 43 is connected to the inside of the inner sleeve 42. A jet pipe 24 is connected to the jet ring 43. A flow box 25 is provided on the jet pipe 24. A slide plate 26 is slidably connected through the inside of the flow box 25. An air hole 27 is opened on the slide plate 26. A return spring 28 is fixedly connected to the slide plate 26. The other end of the return spring 28 is fixedly connected to the outer wall of the flow box 25. A one-way plate 29 is rotatably connected to the end of the slide plate 26. A limit base plate 31 is fixedly connected to the one-way plate 29. A roller 30 is rotatably connected to the end of the one-way plate 29.

[0020] A lubrication collar 10 is installed on the boss 40. A limiting member 17 is fixedly connected to the lubrication collar 10. A sliding plate 15 is slidably connected to the limiting member 17. A pressing spring 16 is fixedly connected inside the sliding plate 15. An outward pusher 18 is fixedly connected to the outer wall of the sliding plate 15. A round rod 14 is fixedly connected to the outer wall of the sliding plate 15.

[0021] A rubber piston 19 is slidably connected inside the lubrication ring 10. A slide rod 6 is fixedly connected to both sides of the rubber piston 19. The slide rod 6 slides through to the outside of the lubrication ring 10. A return spring 21 is sleeved on the outer wall of the slide rod 6. The ends of the two slide rods 6 away from the lubrication ring 10 are fixedly connected to a top plate 20. A plurality of nozzles 11 are connected to the bottom of the lubrication ring 10. A nozzle 12 is connected to the end of each nozzle 11. A nozzle 22 is opened on the nozzle 12.

[0022] A bracket 3 is fixedly connected to the outer wall of the transformer body 1. An electric rotating shaft 4 is fixedly connected to the bracket 3. A torque detector is installed on the electric rotating shaft 4. A rotating rod 5 is installed at the output end of the electric rotating shaft 4. The end of the rotating rod 5 away from the electric rotating shaft 4 is fixedly connected to the tap changer 23. A locking ring 7 is installed on the rotating rod 5.

[0023] A limiting rail 33 is fixedly connected to the outer wall of the jet pipe 24, and a locking mechanism is slidably provided on the limiting rail 33.

[0024] In this embodiment, when shifting gears, the electric rotating shaft 4 fixed on the bracket 3 can be remotely driven to start through a preset program, outputting a preset torque. This torque is transmitted to the tap changer 23 fixedly connected to the rotating rod 5 through the rotating rod 5, driving the tap changer 23 to rotate and realize gear shifting. At the same time, the pointer 9 fixed on the outer wall of the tap changer 23 rotates synchronously with the tap changer 23, forming a precise correspondence with the multiple gear position marks 8 fixed on the outer wall of the lubrication sleeve 10. The current gear position information can be quickly read according to the gear position marks 8, and the gear position can be quickly identified. The shield 2 can protect the internal transmission components.

[0025] During the gear shifting process, the torque detector installed on the electric shaft 4 monitors the torque value transmitted by the rotating rod 5 in real time. When the electric shaft 4 outputs the predetermined torque but still cannot drive the rotating rod 5 to rotate the tap changer 23, it is determined that the torque is abnormal. The preset program immediately triggers the torque abnormality handling mechanism and controls the multi-section telescopic rod 13 fixed on the outer wall of the lubrication ring 10 to start the retraction action.

[0026] During the retraction of the multi-section telescopic rod 13, the upper push plate 32 at its end contacts the moving plate 15, causing the moving plate 15 to move downward against the elastic force of the pressing spring 16. When the moving plate 15 moves downward, the outer push member 18 moves downward simultaneously. During the downward movement of the outer push member 18, the inclined contact end of the outer push member 18 first contacts the roller 30, and then the roller 30 transitions to contact the side plane of the outer push member 18. Under the lifting force of the outer push member 18, the one-way plate 29 pushes the slide plate 26 fixedly connected to it to overcome the elastic force of the return spring 28 and move towards the flow box. When the air hole 27 on the slide plate 26 is fully inserted into the flow box 25, the flow box 25 is connected to the jet pipe 24. At this time, the high-pressure gas in the high-pressure gas tank 44 flows into the jet ring 43 through the front end of the jet pipe 24, the flow box 25, the air hole 27 and the rear end of the jet pipe 24 in sequence. Then, it is sprayed into the inner sleeve 42 through multiple branch pipes 41 to blow high pressure into the gap between the tap changer 23 and the inner sleeve 42 to remove dust, oil and other foreign objects that hinder the rotation of the tap changer 23.

[0027] It should be noted that the end of the branch pipe 41 located inside the inner sleeve 42 is connected to a cover plate 46 via a torsion spring shaft 45. When high-pressure gas is ejected, its pressure can overcome the torsional elasticity of the torsion spring shaft 45 and force open the cover plate 46, ensuring that the gas is ejected smoothly. When the gas supply is stopped, the cover plate 46 flips back to its original position under the torsional elasticity of the torsion spring shaft 45, forming a shield on the end of the branch pipe 41, effectively preventing the lubricating oil from entering the interior of the branch pipe 41 and causing blockage when lubricating oil is subsequently introduced between the tap changer 23 and the inner sleeve 42.

[0028] As the multi-section telescopic rod 13 continues to retract, the sliding plate 15 continues to move downwards. At this time, the roller 30 contacts the area on the sliding plate 15 where the external pusher 18 is not installed. The one-way plate 29 loses the lifting force of the external pusher 18, and the slide plate 26 slides back to its original position under the elastic force of the return spring 28 connected to it. The air hole 27 disengages from the flow box 25, the connection between the air jet pipe 24 and the air jet ring 43 is broken, and the blowing and impurity removal action stops. As the multi-section telescopic rod 13 continues to retract, the round rod 14 begins to contact the top plate 20 and applies downward pressure, pushing the top plate 20. Overcoming the elastic force of the return spring 21, the top plate 20 moves downward, and pushes the rubber piston 19 downward toward the lubrication ring 10 through the slide rods 6 fixed on both sides. During the downward movement of the rubber piston 19, the lubricating oil stored inside the lubrication ring 10 is squeezed. Under the pressure, the lubricating oil enters into multiple nozzles 11, and then is sprayed into the inner sleeve 42 through the nozzle 12 and the nozzle 22, evenly covering the surface of the tap changer 23 and the mating gap between the tap changer 23 and the inner sleeve 42, thereby achieving lubrication treatment of the tap changer 23 and reducing its rotational friction resistance.

[0029] Example 1: Please refer to Figure 1 - Figure 12 This embodiment further describes Example 1. The locking mechanism includes a driving member 34 that is slidably connected inside the limiting rail 33. A pressure spring 35 is fixedly connected to the outer wall of the driving member 34. The end of the pressure spring 35 away from the driving member 34 is fixedly connected to the inner wall of the limiting rail 33.

[0030] A locking rod 38 is fixedly connected to the drive component 34. A side plate 36 is fixedly connected to the side wall of the drive component 34. An insertion hole is provided on the side plate 36. An installation plate is fixedly connected to the outer side wall of the limiting rail 33. An insertion rod 37 corresponding to the insertion hole is slidably connected to the installation plate. A tail plate 39 is fixedly connected to the outer side wall of the insertion rod 37. A multi-section telescopic rod 13 is fixedly connected to the outer side wall of the lubrication ring 10. The multi-section telescopic rod 13 passes through the moving plate 15. An upper push plate 32 is provided at the end of the multi-section telescopic rod 13. The upper push plate 32 is located directly below the tail plate 39.

[0031] A high-pressure gas tank 44 is connected to the end of the jet pipe 24 away from the jet ring 43. Multiple position indicators 8 are fixedly connected to the outer wall of the lubrication sleeve 10. A pointer 9 is fixedly connected to the outer wall of the tap changer 23.

[0032] Both ends of the branch pipe 41 are provided with torsion spring shafts 45, and each torsion spring shaft 45 is provided with a cover plate 46.

[0033] In this embodiment, after the blowing and lubrication processes are completed, the multi-section telescopic rod 13 is extended and reset. At this time, the moving plate 15 moves upward back to its original position under the elastic force of the internal pressing spring 16. During the upward reset of the moving plate 15, the tail plane of the pusher 18 contacts the one-way plate 29. Under the pushing action of the tail of the pusher 18, the entire one-way plate 29 flips upward around its connection with the slide plate 26, preventing the slide plate 26 from moving again. Therefore, the blowing operation will not be triggered again. At the same time, after the moving plate 15 resets, the round rod 14 no longer presses the top plate 20, and the top plate 20 resets. Under the elastic force of spring 21, the rubber piston 19 is driven back to its original position through slide rod 6. When the rubber piston 19 is reset, a negative pressure is generated in the lubrication ring 10, and the lubricating oil has a certain viscosity. Under the condition of no extrusion, it is difficult for it to flow into the finer nozzle 11 on its own. Therefore, the lubricating oil will not flow out on its own through nozzle 11 and nozzle 12. After the components are completely reset, the electric rotating shaft 4 is controlled to output the rated torque again to try to drive the tap changer 23 to rotate. If the tap changer 23 still cannot be driven to rotate at this time, it is judged as a serious fault. The preset program controls the multi-section telescopic rod 13 to start the extension action again.

[0034] During the extension of the multi-section telescopic rod 13, the upper push plate 32 at its end contacts the tail plate 39 and drives the tail plate 39 to move. The tail plate 39 is fixed on the insertion rod 37, which in turn drags the insertion rod 37 away from the insertion hole on the side plate 36 to overcome the relevant forces. When the insertion rod 37 is disengaged from the insertion hole, the driving component 34 moves outward along the limit rail 33 under the elastic force of the pressure spring 35, which drives the locking rod 38 to insert into the gap of the locking ring 7, restricting the rotation of the rotating rod 5, thereby limiting the rotation of the tap changer 23 to the stop, avoiding damage to the core transmission components such as the tap changer 23 and the rotating rod 5 due to forced drive, and reminding personnel to carry out manual maintenance.

[0035] It should be noted that the lubrication ring 10 is equipped with an inlet for adding lubricating oil. When the lubricating oil in the lubrication ring 10 is used up, it can be added through the inlet.

[0036] It should be noted that the rotation of the electric shaft 4 and the extension and retraction of the multi-section telescopic rod 13 are all executed by a preset PLC program, which can be remotely controlled by the operator (this is existing technology and will not be elaborated further).

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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. A device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer, comprising a transformer body (1), characterized in that, A shield (2) is installed on the outer wall of the transformer body (1). A torque abnormality handling mechanism is provided on the transformer body (1). The torque abnormality handling mechanism includes a boss (40) provided on the transformer body (1). An inner sleeve (42) is provided inside the boss (40). A tap changer (23) is rotatably connected to the inner sleeve (42). An air jet ring (43) is fixedly connected to the outer wall of the boss (40). Multiple branch pipes (41) are connected inside the air jet ring (43). The ends of the multiple branch pipes (41) away from the air jet ring (43) are connected to the inside of the inner sleeve (42). A jet pipe (24) is connected to the jet ring (43), and a flow box (25) is provided on the jet pipe (24). A slide plate (26) is slidably connected through the inside of the flow box (25). An air hole (27) is opened on the slide plate (26). A return spring (28) is fixedly connected to the slide plate (26). The other end of the return spring (28) is fixedly connected to the outer wall of the flow box (25). A one-way plate (29) is rotatably connected to the end of the slide plate (26). A limit plate (31) is fixedly connected to the one-way plate (29). A roller (30) is rotatably connected to the end of the one-way plate (29).

2. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 1, characterized in that: A lubrication collar (10) is installed on the boss (40). A limiting member (17) is fixedly connected to the lubrication collar (10). A sliding plate (15) is slidably connected to the limiting member (17). A pressing spring (16) is fixedly connected inside the sliding plate (15). An outward pusher (18) is fixedly connected to the outer wall of the sliding plate (15). A round rod (14) is fixedly connected to the outer wall of the sliding plate (15).

3. The device for rapid identification and adjustment of the tap position of an oil-immersed distribution transformer according to claim 2, characterized in that, A rubber piston (19) is slidably connected inside the lubrication ring (10). A slide rod (6) is fixedly connected to both sides of the rubber piston (19). The slide rod (6) slides through to the outside of the lubrication ring (10). A return spring (21) is sleeved on the outer wall of the slide rod (6). The ends of the two slide rods (6) away from the lubrication ring (10) are fixedly connected to a top plate (20). A plurality of nozzles (11) are connected to the bottom of the lubrication ring (10). A nozzle (12) is connected to the end of each of the nozzles (11). A nozzle (22) is opened on the nozzle (12).

4. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 1, characterized in that: A bracket (3) is fixedly connected to the outer wall of the transformer body (1). An electric rotating shaft (4) is fixedly connected to the bracket (3). A torque detector is installed on the electric rotating shaft (4). A rotating rod (5) is installed at the output end of the electric rotating shaft (4). The end of the rotating rod (5) away from the electric rotating shaft (4) is fixedly connected to the tap changer (23). A locking ring (7) is installed on the rotating rod (5).

5. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 1, characterized in that: A limiting rail (33) is fixedly connected to the outer wall of the jet pipe (24), and a locking mechanism is slidably provided on the limiting rail (33).

6. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 5, characterized in that: The locking mechanism includes a drive member (34) that is slidably connected inside the limiting rail (33). A pressure spring (35) is fixedly connected to the outer wall of the drive member (34). The end of the pressure spring (35) away from the drive member (34) is fixedly connected to the inner wall of the limiting rail (33).

7. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 6, characterized in that: A locking rod (38) is fixedly connected to the drive member (34), a side plate (36) is fixedly connected to the side wall of the drive member (34), an insertion hole is provided on the side plate (36), an installation plate is fixedly connected to the outer side wall of the limiting rail (33), an insertion rod (37) corresponding to the insertion hole is slidably connected to the installation plate, and a tail plate (39) is fixedly connected to the outer side wall of the insertion rod (37).

8. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 3, characterized in that: The end of the jet pipe (24) away from the jet ring (43) is connected to a high-pressure gas tank (44). Multiple gear indicators (8) are fixedly connected to the outer wall of the lubrication sleeve (10). A pointer (9) is fixedly connected to the outer wall of the tap changer (23). Torsion spring shafts (45) are provided on both sides of the end of the branch pipe (41). Cover plates (46) are provided on the torsion spring shafts (45).

9. The device for rapid identification and adjustment of tap position of an oil-immersed distribution transformer according to claim 3, characterized in that: Multiple telescopic rods (13) are fixedly connected to the outer wall of the lubrication collar (10). The multiple telescopic rods (13) pass through the shift plate (15). An upper push plate (32) is provided at the end of the multiple telescopic rods (13). The upper push plate (32) is located directly below the tail plate (39).

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