Casting type dry-type transformer coil air passage arrangement device

Abstract

The invention relates to the technical field of pouring-type dry-type transformer coil air passage arrangement, in particular to a pouring-type dry-type transformer coil air passage arrangement device which comprises a coil holder, an expansion component is mounted on the coil holder, and two outer rotary rings with the adjustable distance are connected to the expansion component. A rear baffle disc is rotatably mounted on the coil holder, a linear driving module is fixedly mounted on the coil holder, a front baffle disc which can be driven to rotate and move is in transmission connection with the linear driving module, a group of arrangement mechanisms which are arranged in a circumferential array manner is mounted between the rear baffle disc and the front baffle disc, and a driving module which is in transmission fit with the arrangement mechanisms is mounted on the coil holder. When the air passage arrangement device is used, on one hand, a formed coil can be rapidly and electrically discharged, rapid switching between the sealing state and the ventilation state of an air passage structure during coil pouring is achieved, and on the other hand, rapid mounting and dismounting of the air passage plate can be achieved when the air passage arrangement device is used.

Description

Technical Field

[0001] The invention relates to the technical field of airway arrangement of a cast dry-type transformer coil, and in particular to an airway arrangement device for a cast dry-type transformer coil. Background Art

[0002] The transformer coil airway is an important part of the transformer design, and its main function is to improve the heat dissipation efficiency of the transformer. Cast dry transformer coils are generally arranged with coil axial airways. The traditional airway placement method in the prior art is generally to arrange the airway plate during winding, and then remove the airway plate to leave the airway.

[0003] In the prior art, one method for arranging the airway plate is to directly place the airway plate and use a retaining ring to press the airway plate to position it. This method is relatively cumbersome in the production process and cannot accurately locate the placement of each airway. Another method is to install positioning flanges above and below the coil, and open airway plate placement holes on the positioning flanges to achieve positioning of the airway plate. Although this method achieves accurate positioning of the airway, the size of each coil is different, and the corresponding positioning flange must be processed each time, resulting in high production resource costs for manufacturers. At the same time, the existing airway arrangement device is not convenient for quickly electric unloading of the formed coil and realizing the sealing and ventilation state switching of the airway structure during coil casting. At the same time, the existing device is not convenient for rapid installation and disassembly of the airway plate. Based on this, we propose a cast dry transformer coil airway arrangement device. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a cast dry-type transformer coil airway arrangement device.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a cast dry transformer coil airway arrangement device, including a wire rack, an expansion component is installed on the wire rack, two outer rotating rings with adjustable spacing are connected to the expansion component, a rear baffle is rotatably installed on the wire rack and a linear drive module is fixedly installed, a front baffle that can be driven to rotate and move is transmission-connected to the linear drive module, a group of arrangement mechanisms arranged in a circumferential array are installed between the rear baffle and the front baffle, and a drive module that cooperates with the arrangement mechanism is installed on the wire rack;

[0006] The arrangement mechanism includes an airway arc seat that slides with the front baffle and a positioning slide that slides with the rear baffle. The bottom surface of the airway arc seat is provided with a distance adjustment module connected with two external rotating rings, and the inner wall of the positioning slide is provided with a linkage module that cooperates with the driving module. The inner wall of the airway arc seat is rotatably connected with a feed roller, and a spiral conveying blade is installed on the feed roller. Two ventilation valve channels are provided on the airway arc seat, and the inner wall of each ventilation valve channel is rotatably connected with a valve cylinder. The valve cylinder is provided with two symmetrically arranged air permeable strip holes, and the feed roller and the valve cylinder are both driven by the linkage module.

[0007] Preferably, the expansion support component includes a transmission motor and two guide rods installed on the wire rack, the inner wall of the wire rack is rotatably connected with an expansion support screw, the output shaft end of the transmission motor is fixedly connected to the expansion support screw, the expansion support screw is symmetrically provided with a positive thread segment and a negative thread segment, the positive thread segment and the negative thread segment are both transmission-mounted with an inner support frame, the two outer rotating rings are respectively rotatably mounted on the two inner support frames, and the two inner support frames are both slidably connected to the guide rods.

[0008] Preferably, the driving module includes a push seat, a gear sleeve rotatably connected to the inner wall of the push seat and an active rotating seat rotatably connected to the wire rack, a group of electric push rods are installed between the wire rack and the push seat, a driving motor is installed on the wire rack, the output shaft end of the driving motor is connected to the active rotating seat through a belt, a transmission bevel gear ring is installed on the gear sleeve, a group of connecting grooves distributed in a circular array are opened on the gear sleeve, and connecting rods are installed on the active rotating seat and at the position corresponding to each connecting groove, and each of the connecting rods is slidably connected to the connecting groove at the corresponding position.

[0009] Preferably, the linkage module includes a square shaft rotatably connected to the rear baffle, and a sleeve rotatably connected to the inner wall of the positioning slide, the sleeve is driven by the square shaft, and a passive bevel gear is installed at the bottom end of the sleeve, and the passive bevel gear is adaptably connected to the transmission bevel gear ring, and a large gear shaft and two small gear shafts are rotatably installed on the inner wall of the positioning slide, and a ring gear belt is transmission-installed on the large gear shaft, and the two small gear shafts are both transmission-connected to the ring gear belt, the large gear shaft is adaptably connected to the unloading roller, and the two small gear shafts are adaptably connected to the two valve cylinders respectively.

[0010] Preferably, the axis of the square shaft is perpendicular to the rotation axis of the gear sleeve, a square groove is fixedly provided inside the sleeve and is slidably connected to the square shaft, the cross-sections of the square shaft and the square groove are both regular polygons, and a transmission plate is installed at one end of the large gear shaft, small gear shaft, unloading roller and valve cylinder, and the surface of the transmission plate is covered with friction patterns.

[0011] Preferably, a group of first magnetic grooves are opened on a side of the positioning slide opposite to the front baffle, and a first clamping column is installed on one side of the airway arc seat and corresponding to the position of each first magnetic groove, and each of the first clamping columns is clamped with the first magnetic groove at the corresponding position.

[0012] Preferably, the distance adjustment module includes two clamping tables, which are respectively adapted to be connected with two external rotating rings, a group of second magnetic grooves are provided on the two external rotating rings, a group of second clamping columns are installed on the bottom surface of each clamping table, each of the second clamping columns is clamped with the second magnetic groove on the external rotating ring at a corresponding position, and support arms are hinged between the two clamping tables and the airway arc seats.

[0013] Preferably, a guide portion is provided on the airway arc seat and on a side opposite to the positioning slide, and a slide groove slidably connected to the guide portion is fixedly provided on the front baffle.

[0014] Preferably, the valve cylinder is a hollow structure, and the axes of the discharge roller and the valve cylinder are parallel to the rotation axis of the gear sleeve.

[0015] Preferably, the linear drive module includes a transmission screw rotatably connected to the wire rack and a motor fixed on the wire rack, the output shaft end of the motor is fixedly connected to the transmission screw, the transmission screw is transmission-connected to a discharge rack, the discharge rack is slidably connected to the wire rack, and the front baffle is rotatably connected to the discharge rack via a bearing.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When in use, the airway arrangement device can quickly electrically discharge the formed coil and realize the rapid switching of the sealing and ventilation states of the airway structure during coil casting. At the same time, the device can also realize the rapid installation and disassembly of the airway plate when in use. When the device is in use, it can meet the winding operation of coils with different inner diameters, thereby effectively improving the versatility of the device.

[0018] 2. When the present invention is used, the spacing between the two outer rotating rings is changed, thereby synchronously changing the spacing between a group of airway arc seats relative to the expansion screw rod. By adjusting the spacing between a group of airway arc seats relative to the expansion screw rod, the inner diameter of the coil winding of the arrangement device is adjusted, and ultimately the device is suitable for the winding operation of coils with different inner diameters.

[0019] 3. In the present invention, before the coil is wound, the ventilation valve channel on the valve cylinder is sealed by the valve cylinder. After the coil is wound and cast, and internal heat dissipation of the coil is required, the ventilation valve channel is placed in a connected state by setting the angle of the valve cylinder, and then internal ventilation and heat dissipation of the wound coil are carried out.

[0020] 4. In the present invention, when the coil is formed and the coil on the outside of the airway arc seat needs to be quickly moved out of the airway arc seat, the front baffle is sufficiently away from the rear baffle. After the position of the front baffle is adjusted, a group of unloading rollers rotate synchronously. After the unloading rollers rotate, the spiral conveying blades are set to transport the wound coil in the direction of the rear baffle, thereby finally realizing the electric unloading of the external coil of the airway arc seat. When it is necessary to separate each airway arc seat from the device, the clamping structure of the positioning slide and the airway arc seat and the clamping structure of the clamping table and the external rotating ring are set, thereby facilitating the rapid separation and disassembly and installation of the airway arc seat from the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a cast dry-type transformer coil airway arrangement device of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the structure from another perspective;

[0023] Figure 3 It is a structural schematic diagram of the rear baffle and the airway arc seat of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the airway arc seat and the guide part of the present invention;

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the upward viewing angle structure;

[0026] Figure 6 It is a schematic diagram of the structure of the valve cylinder and the air-permeable strip hole of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the square shaft and the large gear shaft of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the transmission disc and the square shaft of the present invention;

[0029] Fig. 9 It is a schematic structural diagram of the square shaft and the electric push rod of the present invention;

[0030] Fig.10 It is a schematic diagram of the exploded structure of the gear sleeve and the active rotating seat of the present invention.

[0031] 1. Wire rack; 2. Outer rotating ring; 3. Rear baffle; 4. Front baffle; 5. Airway arc seat; 6. Positioning slide; 7. Unloading roller; 8. Spiral conveying blade; 9. Ventilation valve; 10. Valve cylinder; 11. Ventilation strip hole; 12. Transmission motor; 13. Guide rod; 14. Expanding screw rod; 15. Inner support frame; 16. Push seat; 17. Gear sleeve; 18. Active rotating seat; 19. Electric push rod; 20. Driving motor; 21. Connecting rod; 22. Square shaft; 23. Bushing; 24. Large gear shaft; 25. Small gear shaft; 26. Transmission disk; 27. First clamping column; 28. Clamping table; 29. ​​First magnetic groove; 30. Second magnetic groove; 31. Second clamping column; 32. Support arm; 33. Guide part; 34. Transmission screw rod; 35. Unloading rack. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figure 1-Figure 10 The shown device is a cast dry transformer coil airway arrangement device, comprising a coil rack 1, on which is mounted a support component, and on which are connected two outer rotating rings 2 with adjustable spacing;

[0034] like Figure 3 and Fig. 9 As shown, the expansion component includes a transmission motor 12 and two guide rods 13 installed on the wire rack 1, the inner wall of the wire rack 1 is rotatably connected with an expansion screw rod 14, and the output shaft end of the transmission motor 12 is fixedly connected to the expansion screw rod 14;

[0035] The expansion screw rod 14 is symmetrically provided with a positive thread section and a negative thread section, and an inner support frame 15 is installed on both the positive thread section and the negative thread section;

[0036] The two outer rotating rings 2 are respectively rotatably sleeved on the two inner support frames 15, and the two inner support frames 15 are both slidably connected to the guide rod 13;

[0037] By setting the positive thread segment and the negative thread segment, the relative distance between the two inner support frames 15 can be quickly changed, and by changing the relative distance between the two inner support frames 15, the distance between the two outer rotating rings 2 can be changed;

[0038] By rotating the outer ring 2 on the inner support frame 15, the two outer rings 2 can rotate with the fixed wire drum and the moving wire drum when the coil is wound;

[0039] A rear baffle 3 is rotatably mounted on the wire rack 1 and a linear drive module is fixedly mounted thereon;

[0040] The linear drive module is transmission-connected with a front baffle plate 4 which can be driven to rotate and move;

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the linear drive module includes a transmission screw 34 rotatably connected to the wire rack 1 and a motor fixed to the wire rack 1, the output shaft end of the motor is fixedly connected to the transmission screw 34, the transmission screw 34 is transmission-connected to a feed frame 35, the feed frame 35 is slidably connected to the wire rack 1, and the front baffle 4 is rotatably connected to the feed frame 35 through a bearing;

[0042] When the wound coil needs to be moved out through the outside of the airway arc seat 5, the motor cylinder first drives the transmission screw 34 to make the front baffle 4 sufficiently away from the rear baffle 3. When the rear baffle 3 is sufficiently away from the front baffle 4, the wound coil is then easily moved out of the airway arc seat 5.

[0043] A group of arranging mechanisms arranged in a circumferential array is installed between the rear baffle plate 3 and the front baffle plate 4, and a driving module that cooperates with the arranging mechanism is installed on the wire rack 1;

[0044] The arrangement mechanism includes an airway arc seat 5 slidably matched with the front baffle plate 4 and a positioning slide 6 slidably connected with the rear baffle plate 3. The bottom surface of the airway arc seat 5 is provided with a distance adjustment module connected with two outer rotating rings 2;

[0045] like Figure 1-Figure 5 As shown, the distance adjustment module includes two clamping platforms 28, which are respectively adapted to be connected with two outer rotating rings 2, and a group of second magnetic grooves 30 are provided on the two outer rotating rings 2. A group of second clamping columns 31 are installed on the bottom surface of each clamping platform 28, and each second clamping column 31 is clamped with the second magnetic groove 30 on the outer rotating ring 2 at the corresponding position, and a support arm 32 is hinged between the two clamping platforms 28 and the airway arc seat 5;

[0046] The second magnetic groove 30 and the second clamping column 31 are provided to achieve magnetic attraction and clamping of the clamping platform 28 and the outer rotating ring 2;

[0047] When in use, the spacing between the two outer rotating rings 2 is changed, thereby synchronously changing the spacing between a group of airway arc seats 5 and the expansion screw 14. By adjusting the spacing between a group of airway arc seats 5 and the expansion screw 14, the inner diameter of the coil winding of the arrangement device is adjusted, and finally the device is suitable for the winding operation of coils with different inner diameters.

[0048] The inner wall of the positioning slide 6 is provided with a linkage module that cooperates with the driving module, and the inner wall of the airway arc seat 5 is rotatably connected with a feed roller 7, and a spiral conveying blade 8 is installed on the feed roller 7;

[0049] The spiral conveying blade 8 is made of silicone;

[0050] When the coil is wound and the coil outside the airway arc seat 5 needs to be quickly moved out of the airway arc seat 5, the front baffle plate 4 is sufficiently away from the rear baffle plate 3. After the position of the front baffle plate 4 is adjusted, a group of unloading rollers 7 rotate synchronously. After the unloading rollers 7 rotate, the spiral conveying blades 8 are set to transport the wound coil to the direction of the rear baffle plate 3, and then finally realize the electric unloading of the outer coil of the airway arc seat 5;

[0051] Two ventilation valve channels 9 are provided on the airway arc seat 5;

[0052] The top and bottom ends of the vent valve channel 9 are both open;

[0053] A guide portion 33 is provided on the airway arc seat 5 at a side opposite to the positioning slide 6 , and a slide groove slidably connected to the guide portion 33 is fixedly provided on the front baffle 4 .

[0054] The inner wall of each vent valve channel 9 is rotatably connected to a valve cylinder 10, and the valve cylinder 10 is provided with two symmetrically arranged air-permeable strip holes 11, and the valve cylinder 10 is a hollow structure;

[0055] The unloading roller 7 and the valve cylinder 10 are both driven by the linkage module.

[0056] The driving module includes a push seat 16, a gear sleeve 17 rotatably connected to the inner wall of the push seat 16, and an active rotary seat 18 rotatably connected to the wire rack 1. A set of electric push rods 19 are installed between the wire rack 1 and the push seat 16.

[0057] A driving motor 20 is installed on the wire rack 1, and the output shaft end of the driving motor 20 is connected to the active rotary seat 18 through a belt. A transmission bevel gear ring is installed on the gear sleeve 17. A group of connecting grooves distributed in a circular array are opened on the gear sleeve 17. Connecting rods 21 are installed on the active rotary seat 18 and at the position corresponding to each connecting groove. Each connecting rod 21 is slidably connected to the connecting groove at the corresponding position.

[0058] The linkage module includes a square shaft 22 rotatably connected to the rear baffle 3 and a shaft sleeve 23 rotatably connected to the inner wall of the positioning slide 6. The shaft sleeve 23 is driven by the square shaft 22. The axis of the square shaft 22 is perpendicular to the rotation axis of the gear sleeve 17.

[0059] A square groove is fixedly provided inside the shaft sleeve 23 and is slidably connected to the square shaft 22. The cross sections of the square shaft 22 and the square groove are both regular polygons.

[0060] The bottom end of the shaft sleeve 23 is provided with a passive bevel gear, which is adapted to be connected with the transmission bevel gear ring;

[0061] When the front baffle plate 4 and the rear baffle plate 3 are in a rotating state or the coil is in a winding state, the distance between the push seat 16 and the wire rack 1 is adjusted by setting the electric push rod 19, and finally the driving bevel gear ring is away from the driven bevel gear. When the driven bevel gear ring is away from the driven bevel gear, the square shaft 22 loses its transmission function.

[0062] When it is necessary to discharge the coil or change the angle of the valve cylinder 10, the electric push rod 19 is set so that the transmission bevel gear ring and the passive bevel gear are meshed and connected as one. After the transmission bevel gear ring and the passive bevel gear are meshed and connected as one, the driving of the discharge roller 7 and the conversion of the angle of the valve cylinder 10 are realized;

[0063] The inner wall of the positioning slide 6 is rotatably mounted with a large gear shaft 24 and two small gear shafts 25, the large gear shaft 24 is driven by a ring-toothed belt, and the two small gear shafts 25 are connected to the ring-toothed belt.

[0064] The large gear shaft 24 is adaptably connected to the unloading roller 7 , and the two small gear shafts 25 are adaptably connected to the two valve cylinders 10 , respectively.

[0065] The large gear shaft 24, the small gear shaft 25, the unloading roller 7 and one end of the valve cylinder 10 are all equipped with a transmission plate 26, and the surface of the transmission plate 26 is evenly covered with friction lines;

[0066] The axes of the unloading roller 7 and the valve cylinder 10 are parallel to the rotation axis of the gear sleeve 17 .

[0067] When the positioning slide 6 is connected and magnetically attracted to the airway arc seat 5 as a whole, the unloading roller 7 is connected to the large gear shaft 24 by transmission and fits together as a whole, and the two valve cylinders 10 are connected to the two small gear shafts 25 by transmission and fit together as a whole;

[0068] A group of first magnetic grooves 29 are opened on one side of the positioning slide 6 opposite to the front baffle 4, and a first clamping column 27 is installed on one side of the airway arc seat 5 and corresponding to the position of each first magnetic groove 29, and each first clamping column 27 is clamped with the first magnetic groove 29 at the corresponding position.

[0069] The working principle of the present invention is as follows: before the coil is wound, the airway arc seat 5 is arranged between the front baffle plate 4 and the rear baffle plate 3, and by setting the expansion screw rod 14, the spacing of a group of airway arc seats 5 relative to the expansion screw rod 14 is synchronously adjusted, and finally the winding inner diameter of the coil is adjusted. Before the coil is wound, the vent valve channel 9 on the valve cylinder 10 is sealed by the valve cylinder 10. After the coil is wound and cast, and the internal heat dissipation of the coil is required, the vent valve channel 9 is in a connected state by setting the angle of the valve cylinder 10, and then the internal ventilation and heat dissipation of the wound coil is carried out. When the coil is formed and the airway arc seat 5 needs to be When the outer coil is quickly moved out from the airway arc seat 5, the front baffle plate 4 is sufficiently away from the rear baffle plate 3. After the position of the front baffle plate 4 is adjusted, a group of unloading rollers 7 rotate synchronously. After the unloading rollers 7 rotate, the spiral conveying blades 8 are set to make the wound coil be conveyed in the direction of the rear baffle plate 3, and then finally realize the electric unloading of the external coil of the airway arc seat 5. When it is necessary to separate each airway arc seat 5 from the device, the clamping structure of the positioning slide 6 and the airway arc seat 5 and the clamping structure of the clamping table 28 and the outer rotating ring 2 are set, so as to facilitate the rapid separation and disassembly and installation of the airway arc seat 5 from the device.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A cast dry-type transformer coil airway arrangement device, comprising a coil rack (1), characterized in that: The wire rack (1) is provided with an expansion component, and two outer rotating rings (2) with adjustable spacing are connected to the expansion component. A rear baffle (3) is rotatably mounted on the wire rack (1) and a linear drive module is fixedly mounted thereon. A front baffle (4) which can be driven to rotate and move is transmission-connected to the linear drive module. A group of arrangement mechanisms arranged in a circular array is installed between the rear baffle (3) and the front baffle (4). A drive module which is transmission-coordinated with the arrangement mechanism is installed on the wire rack (1); The arrangement mechanism comprises an airway arc seat (5) slidably matched with the front baffle (4) and a positioning slide (6) slidably connected with the rear baffle (3); the bottom surface of the airway arc seat (5) is provided with a distance adjustment module connected with two external rotating rings (2); the inner wall of the positioning slide (6) is provided with a linkage module matched with the driving module; the inner wall of the airway arc seat (5) is rotatably connected with a feed roller (7); a spiral conveying blade (8) is installed on the feed roller (7); two ventilation valve channels (9) are provided on the airway arc seat (5); the inner wall of each ventilation valve channel (9) is rotatably connected with a valve cylinder (10); the valve cylinder (10) is provided with two symmetrically arranged air permeable strip holes (11); the feed roller (7) and the valve cylinder (10) are both driven by the linkage module.

2. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: The expansion component comprises a transmission motor (12) and two guide rods (13) mounted on the wire rack (1); the inner wall of the wire rack (1) is rotatably connected with an expansion screw rod (14); the output shaft end of the transmission motor (12) is fixedly connected to the expansion screw rod (14); a positive thread section and a negative thread section are symmetrically arranged on the expansion screw rod (14); the positive thread section and the negative thread section are both transmission-mounted with an inner support frame (15); the two outer rotating rings (2) are respectively rotatably sleeved on the two inner support frames (15); and the two inner support frames (15) are both slidably connected to the guide rods (13).

3. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: The driving module comprises a push seat (16), a gear sleeve (17) rotatably connected to the inner wall of the push seat (16), and an active rotary seat (18) rotatably connected to the wire frame (1); a group of electric push rods (19) are installed between the wire frame (1) and the push seat (16); a driving motor (20) is installed on the wire frame (1); the output shaft end of the driving motor (20) is connected to the active rotary seat (18) through a belt; a transmission bevel gear ring is installed on the gear sleeve (17); a group of connecting grooves distributed in a circumferential array are opened on the gear sleeve (17); a connecting rod (21) is installed on the active rotary seat (18) and at a position corresponding to each connecting groove; each connecting rod (21) is slidably connected to the connecting groove at a corresponding position.

4. The device for arranging air passages for cast dry-type transformer coils according to claim 3, characterized in that: The linkage module comprises a square shaft (22) rotatably connected to the rear baffle (3) and a shaft sleeve (23) rotatably connected to the inner wall of the positioning slide (6); the shaft sleeve (23) is driven by the square shaft (22); a passive bevel gear is installed at the bottom end of the shaft sleeve (23); the passive bevel gear is adaptively connected to the transmission bevel gear ring; a large gear shaft (24) and two small gear shafts (25) are rotatably installed on the inner wall of the positioning slide (6); a ring gear belt is transmission-installed on the large gear shaft (24); the two small gear shafts (25) are both transmission-connected to the ring gear belt; the large gear shaft (24) is adaptively connected to the unloading roller (7); and the two small gear shafts (25) are adaptively connected to the two valve cylinders (10) respectively.

5. The device for arranging air passages for cast dry-type transformer coils according to claim 4, characterized in that: The axis of the square shaft (22) is perpendicular to the rotation axis of the gear sleeve (17); a square groove is fixedly provided inside the shaft sleeve (23) and is slidably connected to the square shaft (22); the cross-sections of the square shaft (22) and the square groove are both regular polygons; a transmission disc (26) is installed at one end of the large gear shaft (24), the small gear shaft (25), the unloading roller (7) and the valve cylinder (10); and the surface of the transmission disc (26) is evenly covered with friction patterns.

6. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: A group of first magnetic grooves (29) are provided on one side of the positioning slide (6) opposite to the front baffle (4), and a first clamping column (27) is installed on one side of the airway arc seat (5) and at a position corresponding to each first magnetic groove (29), and each first clamping column (27) is clamped with the first magnetic groove (29) at the corresponding position.

7. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: The distance adjustment module comprises two clamping platforms (28), the two clamping platforms (28) are respectively adapted to be connected with two external rotating rings (2), a group of second magnetic grooves (30) are provided on the two external rotating rings (2), a group of second clamping columns (31) are installed on the bottom surface of each clamping platform (28), each second clamping column (31) is clamped with the second magnetic groove (30) on the external rotating ring (2) at a corresponding position, and a support arm (32) is hinged between the two clamping platforms (28) and the airway arc seat (5).

8. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: A guide portion (33) is provided on the airway arc seat (5) on a side opposite to the positioning slide (6), and a slide groove slidably connected to the guide portion (33) is fixedly provided on the front baffle (4).

9. The device for arranging air passages for cast dry-type transformer coils according to claim 3, characterized in that: The valve cylinder (10) is a hollow structure, and the axes of the unloading roller (7) and the valve cylinder (10) are parallel to the rotation axis of the gear sleeve (17).

10. The device for arranging air passages for cast dry-type transformer coils according to claim 1, characterized in that: The linear drive module comprises a transmission screw (34) rotatably connected to the wire rack (1) and a motor fixed to the wire rack (1); the output shaft end of the motor is fixedly connected to the transmission screw (34); a material discharge rack (35) is transmission-connected to the transmission screw (34); the material discharge rack (35) is slidably connected to the wire rack (1); and the front baffle (4) is rotationally connected to the material discharge rack (35) via a bearing.

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