Transformer rust-proof treatment device and treatment method thereof

Abstract

The invention relates to the technical field of transformer production, and particularly discloses a transformer rust-proof treatment device and a treatment method thereof.The transformer rust-proof treatment device comprises a telescopic part and a spraying assembly, a mounting plate is arranged at the output end of the telescopic part, and a rotating rod and a threaded rod are rotationally mounted on the mounting plate correspondingly; the spraying assembly comprises a first spraying piece and a second spraying piece, spraying boxes and positioning pieces are installed on the first spraying piece and the second spraying piece, and driving assemblies are installed in the first spraying piece and the second spraying piece. A first spraying part and a second spraying part move between the two cooling fins, so that two sets of spraying boxes move downwards and meanwhile spray paint to the surfaces of the cooling fins, in this way, the first spraying part and the second spraying part are matched to be located between the two sets of cooling fins in a spraying mode, and the cooling fins can be sprayed more conveniently. In this way, the flowing coating is effectively prevented from being gathered and accumulated due to the limited flowability, bridging is avoided after the coating is coated, and therefore the heat dissipation efficiency of the cooling fin is improved while the uniformity of the coating is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer production, and in particular to a transformer rust-proof treatment device and a treatment method thereof. BACKGROUND

[0002] The transformer radiator (usually composed of multiple parallel radiating fins and connecting headers) is an important component of the oil tank, and its performance directly affects the temperature rise control of the transformer. A typical fin-type radiator is composed of two metal headers and multiple metal radiating fins. The radiating fins are hollow inside, and the two ends of the multiple radiating fins are respectively communicated with the circumferential surfaces of the two metal headers. The two metal headers are communicated with the body of the transformer oil tank. The cooling oil in the transformer flows into the inside of the radiating fins through the headers under the driving of the oil pump or natural convection, and exchanges heat with the air through the broad outer surface of the radiating fins, thereby achieving cooling.

[0003] In order to prolong the service life of the radiator in outdoor harsh environments (especially rain erosion), it is usually necessary to coat the outer surface of the radiator with anticorrosive paint. At present, the coating process commonly used in the industry is to spray the paint from top to bottom on the radiating fin group through a spray pipe, relying on the gravity of the paint to flow downward freely, so as to cover the entire surface of the radiating fin.

[0004] However, this traditional process has obvious technical defects. Since the gap between adjacent radiating fins is small in itself, and the outermost radiating fin is prone to inward bending deformation (as shown in Figure 9 ) due to extrusion during the transfer or welding of the radiating fin, this deformation will further reduce the effective spacing between adjacent radiating fins. When spraying, the paint flowing into the narrow gap is prone to condensation and accumulation due to limited flowability, and after drying and solidification, it will connect the two adjacent radiating fins together, forming a locally thick coating "bridge" or "accumulation body". This defect not only weakens the uniformity and corrosion resistance of the coating, but more importantly, the thick coating layer will seriously hinder the heat exchange between the radiating fin and the air, forming a thermal insulation layer and significantly reducing the heat dissipation efficiency of the radiator, ultimately affecting the overall cooling performance of the transformer. SUMMARY

[0005] The present application aims to solve the technical problem of coating bridging between adjacent radiating fins affecting the heat dissipation effect by providing a transformer rust-proof treatment device and a treatment method thereof.

[0006] The object of the present application can be achieved by the following technical solutions: The utility model provides a transformer rustproof treatment device, including spraying pool and support seat, and the transformer oil tank is placed on the support seat, the utility model also includes telescopic spare and spraying assembly, the telescopic spare is connected with external mechanical arm, the output of telescopic spare is equipped with mounting plate, rotating installation has respectively the screw rod with the fixed installation of the rotating rod on the mounting plate, the rotating rod is connected with the drive part, the spraying assembly includes spraying spare one and spraying spare two, spraying spare one and spraying spare two all are covered in the rotating rod and screw rod, all are installed with the spraying box and the positioning part on spraying spare one and spraying spare two, all are installed with the drive assembly in spraying spare one and spraying spare two, the drive assembly is connected with the rotating rod and screw rod, and two groups of drive assemblies make spraying spare one and spraying spare two move respectively through the rotating rod and screw rod.

[0007] As the preferred technical scheme above, the spraying spare one and the spraying spare two all include a shell, the spraying box and the positioning part are installed on the shell, the longitudinal projection of the spraying box on the spraying spare one coincides with the positioning part on the spraying spare two, and the longitudinal projection of the positioning part on the spraying spare one coincides with the spraying box on the spraying spare two.

[0008] As the preferred technical scheme above, the spraying box includes a sliding plate and a spray head, the sliding plate penetrates the side wall of the shell, a conduit is arranged on the sliding plate, the spray head is rotatably installed on the sliding plate, and a connecting pipe is connected between the sliding plate and the spray head. The spraying material is sprayed from the spray head through the conduit, the sliding plate and the connecting pipe. The spray head faces the side wall of the heat sink.

[0009] As the preferred technical scheme above, the positioning part includes a movable plate and a positioning roller, the movable plate penetrates the side wall of the shell, the positioning roller is rotatably installed on the movable plate, the positioning roller abuts against the side wall of the heat sink, and an elastic member one is connected between the movable plate and the inner wall of the shell.

[0010] As the preferred technical scheme above, one end of the movable plate in the shell is connected with the end of the sliding plate through a connecting plate, the movable plate drives the sliding plate to move through the connecting plate, both ends of the spray head are provided with a rotating shaft, a gear ring is arranged on the rotating shaft, a gear plate is arranged at the corresponding position on the surface of the shell, the gear ring is engaged with the gear plate, and the gear plate is below the gear ring.

[0011] As the preferred technical scheme above, the positioning roller includes an electrostatic column and a friction sleeve, the electrostatic column is rotatably installed on the movable plate, the friction sleeve is movably sleeved on the periphery of the electrostatic column, and the friction sleeve abuts against the side wall of the heat sink.

[0012] As the preferred technical scheme above, the drive assembly includes: Driving wheel, the inside of the driving wheel is provided with several sliders, the periphery of the rotating rod is provided with several guide grooves, the driving wheel is sleeved outside the rotating rod, and the slider is sleeved in the guide groove, the bottom of the driving wheel is provided with an expansion sleeve, the other end of the expansion sleeve is fixed in the inner cavity of the shell, and the elastic element two is arranged between the driving wheel and the inner cavity bottom of the shell; The conical wheel is rotatably installed in the shell through a universal shaft, the conical surface of the conical wheel is abutted against the driving wheel, the generatrix of the conical wheel is parallel to the axis of the driving wheel, and the small-diameter end of the conical wheel is away from the inner cavity bottom of the shell. The main gear is installed on the universal shaft, and the axis of the main gear is parallel to the axis of the driving wheel. The driven gear is rotatably installed in the inner cavity bottom of the shell, the driven gear is meshed with the main gear, the driven gear is sleeved outside the threaded rod and is threadedly connected with the threaded rod. The push-pull plate is connected with the driving wheel through the connecting rod, the wedge-shaped ring is arranged on the driving wheel, and two groups of inclined openings are symmetrically arranged on the push-pull plate and abutted against the conical surface of the wedge-shaped ring.

[0013] A processing method of a transformer rust prevention treatment device, the method is applied to the above-mentioned transformer rust prevention treatment device, and the method comprises the following steps: Step S1: place the transformer oil tank on the support seat, then insert the expansion member, the spraying assembly, the rotating rod and the threaded rod and the like into the space between the two heat dissipation fins from top to bottom through the external mechanical arm, and complete the preparation work; Step S2: at this time, the driving member is started, meanwhile, the external paint supply unit supplies paint to the spray head through the pipeline, and the spraying member one and the spraying member two are driven to move downward under the action of the driving assembly, so that the paint is sprayed to the surface of the heat dissipation fin through the spray box; Step S3: the positioning roller moves along the surface of the heat dissipation fin, so that the distance between the spray head and the heat dissipation fin is always kept consistent, meanwhile, when the spray head moves to the curved part of the heat dissipation fin, the spray head is turned over, so that the direction of the spray head is perpendicular to the surface of the heat dissipation fin, the driving assembly controls the downward moving speed of the shell, when the spray head moves to the curved part of the heat dissipation fin, the driving assembly reduces the downward moving speed of the spray head, and uniform paint spraying is completed; Step S4: when the spraying member one and the spraying member two pass through the heat dissipation fin from top to bottom, the spraying to the surface of the heat dissipation fin is completed The transformer rust prevention treatment device has the advantages that: 1. In this invention, by moving spraying component one and spraying component two between two heat sinks, the two sets of spray boxes move downwards while spraying paint onto the surface of the heat sinks. In this way, by spraying, and with spraying component one and spraying component two located between the two sets of heat sinks, the flow of paint is effectively prevented from agglomerating and accumulating due to limited flowability, and bridging is avoided after the paint has passed. This ensures the uniformity of the coating while improving the heat dissipation efficiency of the heat sink. 2. In this invention, the positioning roller drives the movable plate to move, so that the slide plate drives the nozzle to move and rotate synchronously, so that the nozzle is perpendicular to the surface of the heat sink, and the distance between the nozzle and the surface of the heat sink is always equal. This improves the uniformity of the coating and can effectively prevent the flowing paint from agglomerating and accumulating due to limited flowability, and prevent the paint from bridging later. Thus, while further ensuring the uniformity of the coating, the heat dissipation efficiency of the heat sink is improved. 3. In this invention, static electricity is generated by the electrostatic column and the friction sleeve, and the charge generated by the static electricity is transferred and distributed on the surface of the heat sink. The coating may contain opposite charges, which allows the coating to be better adsorbed on the surface of the heat sink, effectively preventing the coating from flowing downward, thereby further improving the uniformity of the coating and improving the heat dissipation efficiency of the heat sink while ensuring the uniformity of the coating. 4. In this invention, by controlling the drive component, the nozzle slows down when it moves to the curved part of the heat sink, thereby further improving the uniformity of the coating and improving the heat dissipation efficiency of the heat sink while ensuring the uniformity of the coating. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the rotating rod and threaded rod structure; Figure 3 Schematic diagrams of sprayed part one and sprayed part two; Figure 4 This is a schematic diagram of the spray box structure; Figure 5 This is a schematic diagram of the positioning component structure; Figure 6 This is a schematic diagram of the drive mechanism. Figure 7 This is a schematic diagram of the connection structure between the drive mechanism and the movable plate; Figure 8 This is a schematic diagram of the overall structure of the drive mechanism; Figure 9 This is a schematic diagram of the current curved section structure of the heat sink.

[0015] In the picture: 1, spray pool; 2, support seat; 3, telescopic piece; 4, spraying assembly; 41, spraying piece one; 42, spraying piece two; 5, mounting plate; 51, rotating rod; 511, driving piece; 512, guide groove; 52, threaded rod; 6, shell; 61, toothed plate; 7, spray box; 71, sliding plate; 711, guide pipe; 72, spray head; 721, connecting pipe; 722, rotating shaft; 723, toothed ring; 8, positioning piece; 81, movable plate; 82, positioning roller; 821, electrostatic column; 822, friction sleeve; 83, elastic piece one; 84, connecting plate; 85, connecting rod; 9, driving assembly; 91, driving wheel; 911, telescopic sleeve; 912, sliding block; 913, elastic piece two; 914, wedge-shaped ring; 92, conical wheel; 921, universal shaft; 93, main gear; 94, driven gear; 95, push-pull plate; 951, bevel. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0017] As shown in the drawings, Figures 1-5 A transformer rust treatment device includes a spraying pool 1 and a support seat 2, and a transformer oil tank is placed on the support seat 2. The device further includes a telescopic piece 3 and a spraying assembly 4. The telescopic piece 3 is connected with an external mechanical arm, and an output end of the telescopic piece 3 is provided with a mounting plate 5. A rotating rod 51 and a threaded rod 52 are respectively rotatably installed on the mounting plate 5. The rotating rod 51 is connected with a driving piece 511. The spraying assembly 4 includes a spraying piece one 41 and a spraying piece two 42. The spraying piece one 41 and the spraying piece two 42 are both sleeved outside the rotating rod 51 and the threaded rod 52. The spraying piece one 41 and the spraying piece two 42 are both provided with a spray box 7 and a positioning piece 8. The spraying piece one 41 and the spraying piece two 42 are both provided with a driving assembly 9. The driving assembly 9 is connected with the rotating rod 51 and the threaded rod 52. Through the rotating rod 51 and the threaded rod 52, the two groups of driving assemblies 9 respectively drive the spraying piece one 41 and the spraying piece two 42 to move.

[0018] In actual application, the telescopic member 3, the spraying assembly 4, the rotating rod 51 and the threaded rod 52 are inserted into the two heat dissipation fins from top to bottom by the external mechanical arm, meanwhile, the positioning members 8 on the spraying member one 41 and the spraying member two 42 are in contact with the surface of the heat dissipation fins, then the spraying member one 41 and the spraying member two 42 are moved downward by the driving assembly 9, so that the two groups of spraying boxes 7 are moved downward and spray paint on the surface of the heat dissipation fins, in this way, the paint is sprayed in the way that the spraying member one 41 and the spraying member two 42 are located between the two groups of heat dissipation fins, so that the flowing paint is effectively prevented from gathering and accumulating due to limited flowability, and the paint is prevented from forming a bridge after being applied, so that the uniformity of the coating is ensured and the heat dissipation efficiency of the heat dissipation fins is improved.

[0019] Further, the spraying member one 41 and the spraying member two 42 each include the shell 6, the spraying box 7 and the positioning member 8 are mounted on the shell 6, the longitudinal projection of the spraying box 7 on the spraying member one 41 coincides with the longitudinal projection of the positioning member 8 on the spraying member two 42, and the longitudinal projection of the positioning member 8 on the spraying member one 41 coincides with the longitudinal projection of the spraying box 7 on the spraying member two 42.

[0020] The spraying box 7 includes the sliding plate 71 and the spray head 72, the sliding plate 71 penetrates the side wall of the shell 6, the sliding plate 71 is provided with the conduit 711, the spray head 72 is rotatably mounted on the sliding plate 71, and the connecting pipe 721 is connected between the sliding plate 71 and the spray head 72, the paint is sprayed out from the spray head 72 through the conduit 711, the sliding plate 71 and the connecting pipe 721, and the spray head 72 faces the side wall of the heat dissipation fin.

[0021] The positioning member 8 includes the movable plate 81 and the positioning roller 82, the movable plate 81 penetrates the side wall of the shell 6, the positioning roller 82 is rotatably mounted on the movable plate 81, the positioning roller 82 is in contact with the side wall of the heat dissipation fin, and the elastic member one 83 is connected between the movable plate 81 and the inner wall of the shell 6.

[0022] One end of the movable plate 81 in the shell 6 is connected with the end of the sliding plate 71 through the connecting plate 84, the movable plate 81 drives the sliding plate 71 to move through the connecting plate 84, both ends of the spray head 72 are provided with the rotating shaft 722, the rotating shaft 722 is provided with the gear ring 723, the surface of the shell 6 is provided with the gear plate 61 at the corresponding position, the gear ring 723 is engaged with the gear plate 61, and the gear plate 61 is located below the gear ring 723.

[0023] In practical application, if the heat sink is bent or deformed, when the positioning roller 82 moves to this location, the positioning roller 82 remains in contact with the surface of the heat sink due to the elastic force of the elastic element 83. This means the positioning roller 82 will cause the movable plate 81 to move horizontally. Through the connecting plate 84, the sliding plate 71 moves the nozzle 72 synchronously, ensuring that the distance between the nozzle 72 and the surface of the heat sink remains constant. This prevents a small distance between the nozzle 72 and the heat sink surface from resulting in a thicker coating, or a large distance from the nozzle 72 and the heat sink surface from resulting in a thinner coating, thus ensuring the uniformity of the coating. Furthermore, the positioning element 8 and the spray box 7 are located on the same horizontal plane, further promoting the synchronous horizontal movement of the nozzle 72 with the positioning roller 82, further ensuring that the distance between the nozzle 72 and the surface of the heat sink remains constant, and further improving the uniformity of the coating. When the heat sink has a concave bending deformation, the positioning roller 82 and the movable plate 81 will move towards the heat sink. In this way, the slide plate 71 will also drive the nozzle 72 to move towards the heat sink. When the nozzle 72 moves, the toothed ring 723 and the toothed plate 61 cooperate to make the nozzle 72 flip upward. When the heat sink has a convex bending deformation, the positioning roller 82 and the movable plate 81 will move towards the outer shell 6. In this way, the slide plate 71 will also drive the nozzle 72 to move towards the outer shell 6. When the nozzle 72 moves, the toothed ring 723 and the toothed plate 61 cooperate to make the nozzle 72 flip downward. This ensures that the direction of the nozzle 72 is perpendicular to the surface of the heat sink, and at the same time, the distance between the nozzle 72 and the surface of the heat sink is always equal, which can further improve the uniformity of the coating. By distributing the first spraying part 41 and the second spraying part 42 vertically, and by staggering the two sets of spray boxes 7 vertically, it can be ensured that the spray box 7 and the positioning part 8 are on the same horizontal plane, and that the surface of the heat sink can be fully sprayed. In summary, the above structure can improve the uniformity of the coating during spraying, which can effectively prevent the flowing paint from agglomerating and piling up due to limited flowability, and avoid bridging of the paint after spraying. This further ensures the uniformity of the coating while improving the heat dissipation efficiency of the heat sink.

[0024] Furthermore, the positioning roller 82 includes an electrostatic column 821 and a friction sleeve 822. The electrostatic column 821 is rotatably mounted on the movable plate 81, and the friction sleeve 822 is movably sleeved around the electrostatic column 821, with the friction sleeve 822 abutting against the side wall of the heat sink.

[0025] In actual application, the friction sleeve 822 rolls around the electrostatic column 821 in the process of the shell 6 moving downward, so that the friction sleeve 822 generates friction with the electrostatic column 821, and static electricity is generated in the friction. The friction sleeve 822 is in contact with the surface of the heat dissipation fin, so that the electric charge generated by the static electricity is transmitted and distributed on the surface of the heat dissipation fin. There may be opposite electric charges in the paint, so that the paint can be better adsorbed on the surface of the heat dissipation fin, effectively preventing the paint from flowing downward, thereby further improving the uniformity of the coating, effectively avoiding the accumulation of the paint caused by the flow of the paint, and avoiding the bridging of the paint after the coating, thereby further ensuring the uniformity of the coating and improving the heat dissipation efficiency of the heat dissipation fin.

[0026] As shown in Figures 6-8 The driving assembly 9 comprises: A driving wheel 91, a plurality of sliding blocks 912 are arranged on the inner side of the driving wheel 91, a plurality of guide grooves 512 are formed on the outer periphery of the rotating rod 51, the driving wheel 91 is sleeved on the outer periphery of the rotating rod 51, the sliding blocks 912 are sleeved in the guide grooves 512, the bottom of the driving wheel 91 is provided with an elastic sleeve 911, the other end of the elastic sleeve 911 is fixed to the bottom of the inner cavity of the shell 6, and the elastic member two 913 is arranged between the driving wheel 91 and the bottom of the inner cavity of the shell 6; A conical wheel 92, the conical wheel 92 is rotatably installed in the shell 6 through a universal shaft 921, the conical surface of the conical wheel 92 abuts against the driving wheel 91, the generatrix of the conical wheel 92 is parallel to the axis of the driving wheel 91, and the small-diameter end of the conical wheel 92 is away from the bottom of the inner cavity of the shell 6; A main gear 93, the main gear 93 is installed on the universal shaft 921, and the axis of the main gear 93 is parallel to the axis of the driving wheel 91; A pinion 94, the pinion 94 is rotatably installed at the bottom of the inner cavity of the shell 6, the pinion 94 is in mesh with the main gear 93, and the pinion 94 is sleeved on the outer periphery of the threaded rod 52 and is in threaded connection with the threaded rod 52; A push-pull plate 95, the movable plate 81 is connected with the push-pull plate 95 through the connecting rod 85, the driving wheel 91 is provided with a wedge-shaped ring 914, and the push-pull plate 95 is symmetrically provided with two groups of inclined openings 951, and the two groups of inclined openings 951 abut against the conical surface of the wedge-shaped ring 914.

[0027] It should be noted that, due to the bending deformation of the surface of the heat dissipation fin, if the downward movement speed of the nozzle 72 is uniform, when the nozzle 72 moves to the bending part, the distance of the downward movement of the nozzle 72 in a period of time is less than the length of the straightening of the bending part on the heat dissipation fin, so that the amount of paint sprayed by the nozzle 72 at this position is reduced relative to the amount of paint sprayed at the vertical section, which causes the coating to be uneven.

[0028] When the first spraying part 41 and the second spraying part 42 need to move downward in actual application, the driving part 511 is started to rotate the rotating rod 51, the rotating rod 51 drives the driving wheel 91 to rotate, the driving wheel 91 drives the bevel gear 92 to rotate, the main gear 93 on the universal shaft 921 drives the driven gear 94 to rotate, and the driven gear 94 is screwed with the threaded rod 52, so that the outer shell 6 moves downward, and the spraying box 7 sprays the heat dissipation fins. When the spraying head 72 moves to the curved part of the heat dissipation fins, the movable plate 81 moves in the horizontal direction, the movable plate 81 drives the push-pull plate 95 to move in the horizontal direction through the connecting rod 85, the push-pull plate 95 is symmetrically provided with two groups of inclined openings 951, no matter whether the curved part is concave or convex, the push-pull plate 95 drives the wedge-shaped ring 914 to move downward through the inclined openings 951, so that the driving wheel 91 moves downward, the driving wheel 91 moves to the end with a large diameter of the bevel gear 92, the transmission ratio between the driving wheel 91 and the bevel gear 92 changes, the rotating speed of the bevel gear 92 is reduced, the rotating speed of the main gear 93 and the driven gear 94 is reduced, the moving speed of the outer shell 6 is reduced, the moving speed of the spraying head 72 is slowed down when the spraying head 72 moves to the curved part of the heat dissipation fins, and the uniformity of the coating is further improved, the uniformity of the coating is further ensured, and the heat dissipation efficiency of the heat dissipation fins is improved.

[0029] A processing method of a transformer rust prevention treatment device, the method is applied to the above-mentioned transformer rust prevention treatment device, and the method comprises the following steps: Step S1: Place the transformer oil tank on the support seat 2, and then use the external mechanical arm to insert the telescopic part 3, the spraying assembly 4, the rotating rod 51 and the threaded rod 52 and the like from top to bottom between the two heat dissipation fins, and complete the preparation work; Step S2: At this time, the driving part 511 is started, and the external coating supply unit supplies coating to the spraying head 72 through the pipeline 711, the spraying part 41 and the spraying part 42 move downward under the action of the driving assembly 9, and the surface of the heat dissipation fins is sprayed with coating through the spraying box 7; Step S3: The positioning roller 82 moves along the surface of the heat dissipation fins, so that the distance between the spraying head 72 and the heat dissipation fins is always kept consistent, the spraying head 72 is turned over when the spraying head 72 moves to the curved part of the heat dissipation fins, the orientation of the spraying head 72 is perpendicular to the surface of the heat dissipation fins, the driving assembly 9 controls the moving speed of the outer shell 6, the driving assembly 9 reduces the moving speed of the spraying head 72 when the spraying head 72 moves to the curved part of the heat dissipation fins, and the uniform coating is completed. Step S4: When the spraying part 41 and the spraying part 42 pass through the heat dissipation fins from top to bottom, the spraying on the surface of the heat dissipation fins is completed once.

[0030] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A transformer rust prevention treatment device, comprising a spray tank (1) and a support base (2), wherein the transformer oil tank is placed on the support base (2), characterized in that, The device also includes a telescopic component (3) and a spraying assembly (4). The telescopic component (3) is connected to an external robotic arm. The output end of the telescopic component (3) is provided with a mounting plate (5). A rotating rod (51) is rotatably mounted on the mounting plate (5) and a threaded rod (52) is fixedly mounted on it. The rotating rod (51) is connected to a driving component (511). The spraying assembly (4) includes a first spraying component (41) and a second spraying component (42). Both are fitted over the rotating rod (51) and the threaded rod (52). Both the first spraying part (41) and the second spraying part (42) are equipped with a spray box (7) and a positioning part (8). Both the first spraying part (41) and the second spraying part (42) are equipped with a drive assembly (9). The drive assembly (9) is connected to the rotating rod (51) and the threaded rod (52). The two sets of drive assemblies (9) drive the first spraying part (41) and the second spraying part (42) to move through the rotating rod (51) and the threaded rod (52).

2. The transformer rust prevention treatment device according to claim 1, characterized in that, Both the first spraying component (41) and the second spraying component (42) include a housing (6). The spray box (7) and the positioning component (8) are both mounted on the housing (6). The longitudinal projection of the spray box (7) on the first spraying component (41) coincides with that of the positioning component (8) on the second spraying component (42). The longitudinal projection of the positioning component (8) on the first spraying component (41) coincides with that of the spray box (7) on the second spraying component (42).

3. The transformer rust prevention treatment device according to claim 2, characterized in that, The spray box (7) includes a slide plate (71) and a nozzle (72). The slide plate (71) passes through the side wall of the outer shell (6). A conduit (711) is provided on the slide plate (71). The nozzle (72) is rotatably mounted on the slide plate (71). A connecting pipe (721) connects the slide plate (71) and the nozzle (72). The spray material is sprayed out from the nozzle (72) through the conduit (711), the slide plate (71) and the connecting pipe (721). The nozzle (72) faces the side wall of the heat sink.

4. The transformer rust prevention treatment device according to claim 3, characterized in that, The positioning component (8) includes a movable plate (81) and a positioning roller (82). The movable plate (81) penetrates the side wall of the outer shell (6). The positioning roller (82) is rotatably mounted on the movable plate (81). The positioning roller (82) abuts against the side wall of the heat sink. An elastic element (83) is connected between the movable plate (81) and the inner wall of the outer shell (6).

5. The transformer rust prevention treatment device according to claim 4, characterized in that, The movable plate (81) is located inside the outer shell (6) at one end and connected to the end of the slide plate (71) via a connecting plate (84). The movable plate (81) drives the slide plate (71) to move via the connecting plate (84). Both ends of the nozzle (72) are provided with a rotating shaft (722). A toothed ring (723) is provided on the rotating shaft (722). A toothed plate (61) is provided at a corresponding position on the surface of the outer shell (6). The toothed ring (723) meshes with the toothed plate (61). The toothed plate (61) is located below the toothed ring (723).

6. The transformer rust prevention treatment device according to claim 4, characterized in that, The positioning roller (82) includes an electrostatic column (821) and a friction sleeve (822). The electrostatic column (821) is rotatably mounted on the movable plate (81), and the friction sleeve (822) is movably sleeved around the electrostatic column (821). The friction sleeve (822) abuts against the side wall of the heat sink.

7. The transformer rust prevention treatment device according to claim 4, characterized in that, The driving component (9) includes: A drive wheel (91) is provided with several sliders (912) on its inner side. Several guide grooves (512) are provided on the outer periphery of the rotating rod (51). The drive wheel (91) is sleeved on the outside of the rotating rod (51), and the sliders (912) are sleeved in the guide grooves (512). A telescopic sleeve (911) is provided at the bottom of the drive wheel (91). The other end of the telescopic sleeve (911) is fixed to the bottom of the inner cavity of the outer shell (6). An elastic element (913) is installed between the drive wheel (91) and the bottom of the inner cavity of the outer shell (6). A conical wheel (92) is rotatably mounted inside the housing (6) via a universal joint (921). The conical surface of the conical wheel (92) abuts against the drive wheel (91). The generatrix of the conical wheel (92) is parallel to the axis of the drive wheel (91). The end of the conical wheel (92) with a smaller diameter is far away from the bottom of the inner cavity of the housing (6). The main gear (93) is mounted on the universal joint (921), and the axis of the main gear (93) is parallel to the axis of the drive wheel (91); The driven gear (94) is rotatably mounted at the bottom of the inner cavity of the housing (6). The driven gear (94) meshes with the main gear (93). The driven gear (94) is sleeved around the threaded rod (52) and threadedly connected to the threaded rod (52). The push-pull plate (95) is connected to the movable plate (81) via a connecting rod (85). The drive wheel (91) is provided with a wedge-shaped ring (914). The push-pull plate (95) is symmetrically provided with two sets of oblique openings (951). Both sets of oblique openings (951) abut against the conical surface of the wedge-shaped ring (914).

8. A method for treating rust in a transformer, characterized in that, The method is applied to the aforementioned transformer rust prevention treatment device, and the method includes the following steps: Step S1: Place the transformer tank on the support base (2), and then use an external robotic arm to insert the telescopic component (3), spraying assembly (4), rotating rod (51) and threaded rod (52) from top to bottom between the two heat sinks to complete the preparation work; Step S2: At this time, the drive unit (511) is started, and at the same time, the external paint supply unit supplies paint to the nozzle (72) through the conduit (711). Under the action of the drive assembly (9), the first spraying part (41) and the second spraying part (42) move downward, thereby spraying paint onto the surface of the heat sink through the spray box (7). Step S3: The positioning roller (82) moves along the surface of the heat sink so that the distance between the nozzle (72) and the heat sink remains constant. At the same time, when the nozzle (72) moves to the curved part of the heat sink, the nozzle (72) flips so that the direction of the nozzle (72) is perpendicular to the surface of the heat sink. The drive assembly (9) controls the downward speed of the housing (6). When the nozzle (72) moves to the curved part of the heat sink, the drive assembly (9) reduces the downward speed of the nozzle (72) to complete the uniform coating. Step S4: When the first sprayed part (41) and the second sprayed part (42) pass over the heat sink from top to bottom, one spraying of the heat sink surface is completed.

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