A rapid drying device for transformer bushings

Abstract

This utility model discloses a rapid drying device for transformer bushings, belonging to the field of transformer bushing production technology. It includes a drying table with bushing limiting components symmetrically arranged on both sides of the drying table along a first direction. Each bushing limiting component includes a first limiting block and two sliding blocks. Along the first direction, the two sliding blocks are located behind the first limiting block and distributed on both sides of it, and can move towards or away from each other. During drying, the position between the two annular rings at the end of the transformer bushing rests on the first limiting block, while the position of the transformer bushing away from its end abuts against the upper surface of the lifting platform. The sliding blocks abut against the outer side of the annular rings of the transformer bushing. A support platform is provided on the drying table, and a drying component for drying the inside of the transformer bushing is provided on the support platform. This utility model uses the bushing limiting components to position the bushing, adapting to bushings of different diameters and preventing bushing swaying during drying; the drying components also prevent secondary contamination.

Description

Technical Field

[0001] This utility model relates to the field of transformer bushing production technology, specifically to a rapid drying device for transformer bushings. Background Technology

[0002] Oil-immersed transformer bushings are the main external insulation devices of the transformer tank. The leads of the transformer windings must pass through the insulating bushings to insulate between the leads and between the leads and the transformer casing, while also fixing the leads in place. Depending on the voltage level, insulating bushings come in various forms, including pure porcelain bushings, oil-filled bushings, and capacitor bushings.

[0003] After the transformer bushing is manufactured, it needs to be cleaned and dried. In the current technology, it is mostly dried manually, which is inefficient. Moreover, the inside of the transformer bushing is hollow, making it easy to miss some parts during manual wiping and making the wiping difficult, resulting in insufficient drying. Manual wiping may also introduce new impurities into the transformer bushing, causing secondary pollution. All of the above factors will affect the subsequent normal installation and use of the transformer bushing.

[0004] In view of the problems existing in the prior art, this utility model combines years of design and use experience in related fields to design and manufacture a rapid drying device for transformer bushings to overcome the above defects. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a rapid drying device for transformer bushings. The bushing limiting component fixes transformer bushings of different diameters, and the drying component dries the inside of the transformer bushings, thereby improving drying efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rapid drying device for transformer bushings, comprising a drying table, wherein a lifting platform that slides vertically is provided on the drying table, and bushing limiting components are symmetrically provided on both sides of the lifting platform along a first direction. The bushing limiting components include a first limiting block and two sliding blocks. In the first direction, the two sliding blocks are located behind the first limiting block and distributed on both sides thereon, and the two sliding blocks can move in a direction that approaches or moves away from each other. During drying, the position between the two annular rings at the end of the transformer bushing rests on the first limiting block, and the position of the transformer bushing away from its end abuts against the upper surface of the lifting platform, and the sliding blocks abut against the outer side of the annular rings of the transformer bushing. The drying platform is equipped with a support platform, and the support platform is equipped with a drying component that can dry the inside of the transformer bushing.

[0007] Preferably, the upper end face of the first limiting block is provided with an arc-shaped groove, and the position between the two annular rings at the end of the transformer bushing is located in the arc-shaped groove, and the upper end face of the first limiting block gradually slopes downward along the first direction.

[0008] Preferably, a base is provided below the support platform, and a fixed rod and a first cylinder are sequentially provided between the base and the support platform along the first direction. The fixed rod is rotatably connected to the support platform, and the two ends of the first cylinder are rotatably connected to the base and the support platform, respectively.

[0009] Preferably, a second cylinder is provided between the drying table and the lifting table, and the second cylinder can drive the lifting table to move in the vertical direction.

[0010] Preferably, the drying assembly includes two rotating drying tubes, the drying tubes are hollow, and a plurality of air jets are connected to the hollow structure of the drying tubes. The ends of the air jets away from the drying tubes are open, and both the air jets and the drying tubes can extend into the transformer bushing.

[0011] Preferably, the support platform includes a first support platform and a second support platform arranged sequentially from top to bottom, the first support platform and the second support platform are slidably connected along the first direction; the first support platform is provided with two bearing seats, the drying tube is rotatably connected to the first support platform through the bearing seats, the end of the two drying tubes away from the jet pipe is connected to an air supply assembly, and the drying tube is connected to a driving component that drives its rotation.

[0012] Preferably, the gas supply assembly includes a first gas supply pipe, with both ends of the first gas supply pipe rotatably connected to the drying pipe, an air inlet on the first gas supply pipe, and a second gas supply pipe connected to the first gas supply pipe through the air inlet, with a dryer connected to the end of the second gas supply pipe away from the first gas supply pipe.

[0013] Preferably, the driving component includes two synchronous pulleys, which are respectively mounted on the drying tube and connected by a synchronous belt; a first motor is also provided on the first support platform, and a connecting rod is provided at the output end of the first motor. A driving gear is provided on the connecting rod, and a driven gear that meshes with the driving gear is provided on one of the drying tubes.

[0014] Preferably, the lifting platform is provided with a sliding groove, and the sliding block can slide and be fixed on the lifting platform through the sliding groove.

[0015] Preferably, the second support platform is provided with a slide rail, and the first support platform slides on the second support platform via the slide rail. The first support platform is provided with a second motor that drives its sliding. The output end of the second motor is connected to a rotating rod, and the rotating rod is provided with a gear. The second support platform is provided with a rack that meshes with the gear, and the rack extends along the first direction.

[0016] The advantages of this utility model are: 1. This utility model uses a first limiting block and two sliding blocks to position the transformer bushing, preventing it from shaking during drying; the sliding blocks are slidably connected to the lifting platform to fix transformer bushings of different diameters; the drying assembly can dry the inside of the transformer bushing, improving drying efficiency and avoiding secondary pollution.

[0017] 2. The present invention provides an arc-shaped groove on the upper end face of the first limiting block to place the transformer bushing, thereby increasing the contact area and improving the limiting effect. Attached Figure Description

[0018] Figure 1 This is a side view of a rapid drying device for transformer bushings.

[0019] Figure 2 This is a top view of a rapid drying device for transformer bushings.

[0020] Figure 3 This is a schematic diagram of the structure of the first limiting block in a rapid drying device for transformer bushings.

[0021] Figure 4 This is a schematic diagram of the sliding block in a rapid drying device for transformer bushings.

[0022] In the diagram: 1-drying table, 2-first limiting block, 3-sliding block, 4-first support platform, 5-screw, 6-second support platform, 7-bearing seat, 8-first cylinder, 9-fixed rod, 10-base, 11-second motor, 12-first motor, 13-drive gear, 14-driven gear, 15-drying pipe, 16-synchronous pulley, 17-synchronous belt, 18-first air supply pipe, 19-second air supply pipe, 20-dryer, 21-jet pipe, 22-transformer bushing, 23-rack, 24-gear, 25-lifting platform, 26-second cylinder. Detailed Implementation

[0023] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0024] like Figures 1-4As shown, a rapid drying device for transformer bushings includes a drying table 1. A lifting platform 25, which slides vertically on the drying table 1, is provided on the lifting platform 25. Bushing limiting assemblies are symmetrically arranged on both sides of the lifting platform 25 along a first direction, and these assemblies can fix the transformer bushing 22. Each bushing limiting assembly includes a first limiting block 2 and two sliding blocks 3. In the first direction, the two sliding blocks 3 are located behind the first limiting block 2 and distributed on both sides of the first limiting block 2. The two sliding blocks 3 can move in directions that are closer to or further away from each other. When drying the transformer bushing 22, the position between the two annular rings at the end of the transformer bushing 22 rests on the first limiting block 2, which initially positions the transformer bushing 22. The portion of the transformer bushing 22 furthest from its end rests against the upper surface of the lifting platform 25, preventing the transformer bushing 22 from sliding in the first direction and facilitating the discharge of moisture from one end of the transformer bushing 22. The sliding block 3 abuts against the outer side of the annular ring of the transformer bushing, positioning both sides of the transformer bushing 22 to prevent the transformer bushing 22 from rolling and affecting the drying process. The position of the sliding block 3 can be changed according to the diameter of the transformer bushing 22. Figure 1 The middle arrow indicates the first direction, which is a horizontal straight line.

[0025] refer to Figure 3 In one embodiment of this utility model, the upper end face of the first limiting block 2 is provided with an arc-shaped groove, and the position between the two annular rings at the end of the transformer bushing 22 is located in the arc-shaped groove. The upper end face of the first limiting block 2 gradually tilts downward along the first direction to improve the initial positioning effect.

[0026] The lifting platform 25 is provided with a sliding groove, through which the sliding block 3 slides. The sliding groove serves as a guide. The sliding block 3 is preferably L-shaped and has two threaded holes distributed on both sides of the sliding groove. The threaded holes are vertically arranged and pass through the sliding block 3. A screw 5 is screwed into the threaded hole. By tightening the screw 5, its bottom end abuts against the lifting platform 25, fixing the sliding block 3 and preventing it from sliding.

[0027] A support platform is provided on the drying table 1, and a drying assembly for drying the interior of the transformer bushing 22 is provided on the support platform. Specifically, the drying assembly includes two rotating drying tubes 15, which are hollow and capable of conveying hot air. The drying tubes 15 extend along a first direction. Several air jets 21 are provided on the drying tubes 15, and the hollow structure is connected to the air jets 21. The end of the air jet 21 away from the drying tube 15 is open. During drying, the air jets 21 and the drying tubes 15 can extend into the transformer bushing 22, and hot air is ejected from the open end of the air jet 21 to dry the interior of the transformer bushing 22, improving drying efficiency and avoiding secondary pollution.

[0028] In this invention, the support platform includes a first support platform 4 and a second support platform 6 arranged sequentially from top to bottom, and the first support platform 4 and the second support platform 6 are slidably connected along a first direction. Specifically, the first support platform 4 is provided with a second motor 11 that drives its sliding, and the output end of the second motor 11 is connected to a rotating rod, on which a gear 24 is provided. The second support platform 6 is provided with a rack 23 that meshes with the gear 24. The rack 23 extends along the first direction, and the second motor 11 drives the gear 24 to rotate on the rack 23, thereby driving the first support platform 4 to slide.

[0029] Two bearing seats 7 are provided on the first support platform 4. The drying tube 15 is rotatably connected to the first support platform 4 through the bearing seats 7, and the bearing seats 7 provide support for the drying tube 15. A base 10 is provided below the second support platform 6. Along the first direction, a fixing rod 9 and a first cylinder 8 are sequentially provided between the base 10 and the second support platform 6. The fixing rod 9 is rotatably connected to the second support platform 6. The two ends of the first cylinder 8 are rotatably connected to the base 10 and the second support platform 6, respectively. The extension and retraction of the first cylinder 8 can drive the second support platform 6 and the first support platform 4 to rotate about the connection between the fixing rod 9 and the second support platform 6, thereby adjusting the inclination of the support platform and making the axis of the drying tube 15 parallel to the axis of the transformer bushing 22 of different diameters. The second motor 11 drives the first support platform 4 to slide, extending the drying tube 15 into the transformer bushing 22 to improve the drying effect.

[0030] Two second cylinders 26 are installed between the drying table 1 and the lifting platform 25, with the two second cylinders 26 distributed on both sides of the lifting platform 25. The second cylinders 26 can drive the lifting platform 25 to move vertically, adjusting the lifting platform 25 to a suitable height. A guide telescopic rod (not shown in the figure) is installed between the drying table 1 and the lifting platform 25 for guidance.

[0031] The ends of the two drying pipes 15 furthest from the jet pipe 21 are connected to an air supply assembly. Specifically, the air supply assembly includes a first air supply pipe 18, whose two ends are rotatably connected to the drying pipes 15 via rotary joints. The first air supply pipe 18 is provided with an air inlet, which simultaneously supplies hot air to both drying pipes 15, improving working efficiency. The first air supply pipe 18 is connected to a second air supply pipe 19 through the air inlet. The end of the second air supply pipe 19 furthest from the first air supply pipe 18 is connected to a dryer 20, which is used to provide hot air at different temperatures.

[0032] The drying tube 15 is connected to a drive unit that drives its rotation. The drive unit includes two synchronous pulleys 16, which are respectively mounted on the drying tube 15. The two synchronous pulleys 16 are connected by a synchronous belt 17, and the synchronous belt 17 and the synchronous pulleys 16 enable the two drying tubes 15 to rotate synchronously. The first support platform 4 is also equipped with a first motor 12. The output end of the first motor 12 is equipped with a connecting rod, and the connecting rod is equipped with a driving gear 13. One of the drying tubes 15 is equipped with a driven gear 14 that meshes with the driving gear 13. The first motor 12 provides power for the rotation of the drying tube 15.

[0033] Detailed operation process When the transformer bushing 22 needs to be dried, place it on the lifting platform 25, with the position between the two annular rings at the end of the bushing 22 located within the arc-shaped groove of the first limiting block 2, and the part of the bushing 22 furthest from the first limiting block 2 abutting against the upper surface of the lifting platform 25. Loosen the screw 5 on one sliding block 3, move the sliding block 3 so that it abuts against the outer side of the annular ring of the transformer bushing 22, and then tighten the screw 5 so that the bottom end of the screw 5 abuts against the upper surface of the lifting platform 25. Repeat the same steps for the other sliding block 3 to complete the fixing of one transformer bushing 22, and then fix the other transformer bushing 22 in the same way.

[0034] The first cylinder 8 on the base 10 is activated, and its piston pushes downward, tilting the support platform until the tilt angle matches that of the transformer bushing 22. Next, the second cylinder 26 is activated, simultaneously pushing the lifting platform 25 upward until the axis of the transformer bushing 22 is aligned with the extension line of the drying tube 15. The second motor 11 is then activated, and its output drives the first support platform 4 to move closer to the transformer bushing 22, thereby inserting the drying tube 15 and the air jet pipe 21 into the transformer bushing 22. Finally, the second motor 11 is deactivated.

[0035] The first motor 12 is started, and its output drives the drive gear 13 to rotate. The drive gear 13 drives the driven gear 14 to rotate, and the driven gear 14 drives the drying tube 15 on it to rotate. The drying tube 15, through the cooperation of the synchronous pulley 16 and the synchronous belt 17, drives another drying tube 15 to rotate, which in turn drives the jet pipe 21 to rotate. The dryer 20 is started, and hot air enters the second air supply pipe 19, the first air supply pipe 18, and the drying tube 15 in sequence from the dryer 20, and finally is ejected from the jet pipe 21 to dry the transformer bushing 22.

[0036] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A rapid drying device for transformer bushings, characterized in that, The device includes a drying table (1), on which a lifting platform (25) that slides vertically is provided. On the lifting platform (25), sleeve limiting components are symmetrically provided on both sides along a first direction. The sleeve limiting components include a first limiting block (2) and two sliding blocks (3). In the first direction, the two sliding blocks (3) are located behind the first limiting block (2) and distributed on both sides thereon. The two sliding blocks (3) can move in a direction that is close to or far away from each other. During drying, the position between the two annular rings at the end of the transformer bushing (22) is supported on the first limiting block (2). The position of the transformer bushing (22) away from its end abuts against the upper surface of the lifting platform (25). The sliding blocks (3) abut against the outer side of the annular ring of the transformer bushing. The drying table (1) is provided with a support platform, and the support platform is provided with a drying component that can dry the inside of the transformer bushing (22).

2. The rapid drying device for transformer bushings according to claim 1, characterized in that, The upper end face of the first limiting block (2) is provided with an arc-shaped groove, and the position between the two annular rings at the end of the transformer bushing (22) is located in the arc-shaped groove. The upper end face of the first limiting block (2) gradually tilts downward along the first direction.

3. The rapid drying device for transformer bushings according to claim 1, characterized in that, A base (10) is provided below the support platform. Along the first direction, a fixed rod (9) and a first cylinder (8) are sequentially provided between the base (10) and the support platform. The fixed rod (9) is rotatably connected to the support platform, and the two ends of the first cylinder (8) are rotatably connected to the base (10) and the support platform, respectively.

4. The rapid drying device for transformer bushings according to claim 1, characterized in that, A second cylinder (26) is provided between the drying table (1) and the lifting table (25), and the second cylinder (26) can drive the lifting table (25) to move in the vertical direction.

5. The rapid drying device for transformer bushings according to claim 1, characterized in that, The drying assembly includes two rotating drying tubes (15), which are hollow. Several air jets (21) are connected to the hollow structure of the drying tubes (15). The end of each air jet (21) away from the drying tube (15) is open. During drying, both the air jet (21) and the drying tube (15) can extend into the transformer bushing (22).

6. The rapid drying device for transformer bushings according to claim 5, characterized in that, The support platform includes a first support platform (4) and a second support platform (6) arranged sequentially from top to bottom. The first support platform (4) and the second support platform (6) are slidably connected along the first direction. The first support platform (4) is provided with two bearing seats (7). The drying tube (15) is rotatably connected to the first support platform (4) through the bearing seats (7). The ends of the two drying tubes (15) away from the jet pipe (21) are connected to an air supply assembly. The drying tube (15) is connected to a driving component that drives its rotation.

7. A rapid drying device for transformer bushings according to claim 6, characterized in that, The gas delivery assembly includes a first gas delivery pipe (18), both ends of which are rotatably connected to the drying pipe (15). The first gas delivery pipe (18) is provided with an air inlet. The first gas delivery pipe (18) is connected to a second gas delivery pipe (19) through the air inlet. The end of the second gas delivery pipe (19) away from the first gas delivery pipe (18) is connected to a dryer (20).

8. A rapid drying device for transformer bushings according to claim 6, characterized in that, The driving component includes two synchronous pulleys (16), which are respectively mounted on the drying tube (15). The two synchronous pulleys (16) are connected by a synchronous belt (17). The first support platform (4) is also provided with a first motor (12). The output end of the first motor (12) is provided with a connecting rod. The connecting rod is provided with a driving gear (13). One of the drying tubes (15) is provided with a driven gear (14) that meshes with the driving gear (13).

9. A rapid drying device for transformer bushings according to claim 1, characterized in that, The lifting platform (25) is provided with a sliding groove, and the sliding block (3) slides and is fixed on the lifting platform (25) through the sliding groove.

10. A rapid drying device for transformer bushings according to claim 6, characterized in that, The second support platform (6) is provided with a slide rail, and the first support platform (4) slides on the second support platform (6) via the slide rail. The first support platform (4) is provided with a second motor (11) that drives it to slide. The output end of the second motor (11) is connected to a rotating rod, and the rotating rod is provided with a gear (24). The second support platform (6) is provided with a rack (23) that meshes with the gear (24), and the rack (23) extends along the first direction.

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