A low-voltage winding die for a box-type transformer in wind power generation

Abstract

The present invention relates to the technical field of transformer production equipment, and discloses a low-voltage winding wire mold for a wind power box transformer, comprising: a mold body, a workbench and a fixed bracket. The low-voltage winding wire mold for the wind power box transformer is provided with a fixed plate, a first expansion block, a mold body, a connecting mechanism, a limiting mechanism and an internal threaded tube. The mold body is arranged on the surface of a mounting rod through the connecting mechanism. Before winding, the limiting mechanism and the lead placement mechanism are sleeved on the surface of the connecting rod. The first expansion block and the second expansion block on the side of the limiting mechanism are respectively clamped on the inner walls of the first connecting groove and the second connecting groove to open the two mold bodies. After winding, the internal threaded tube and the limiting mechanism are disassembled in sequence. The two mold bodies lose the support of the second expansion block and can be merged together. The surface of the mold body is separated from the inner wall of the low-voltage package, so that the low-voltage package is conveniently removed from the surface of the mold body.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer production equipment, and specifically relates to a low-voltage winding mold for a wind power box-type transformer. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind power transformers are generally made into combined box-type transformers. The box-type transformer centrally designs the traditional transformer in a box-type housing, which has the characteristics of compact structure, small volume, light weight, low noise, low loss, and high reliability. During the use of the transformer, the low-voltage package may be damaged and needs to be replaced with a new one.

[0003] When winding the low-voltage package of the transformer, first wrap insulating paper and heat-resistant metal skeleton pieces on the surface of the winding mold. After winding is completed, wrap the surface with an insulating layer and then start winding the wire. After the low-voltage coil is wound, demolding is required. During the winding process, the internal coil is pressed by the external coil, and the internal coil presses the metal skeleton and insulating paper against the surface of the mold, resulting in difficulty in detaching the low-voltage package from the surface of the mold after winding. Moreover, due to different winding thicknesses of the metal skeleton, the positions of the lead wires are different, and it is not easy to fix the positions of the lead wires. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a low-voltage winding mold for a wind power box-type transformer, which solves the problems mentioned in the above background.

[0005] The present invention provides the following technical solutions: A low-voltage winding mold for a wind power box-type transformer, comprising: a mold body, a workbench, and a fixing bracket. First connection grooves and second connection grooves are respectively opened on both sides of the mold body. The fixing bracket is installed on the top of the workbench. A mounting shaft is rotatably connected to the supporting end of the fixing bracket. One end of the mounting shaft is fixedly connected to a fixing plate. A first expansion block is arranged on the side of the fixing plate away from the mounting shaft. The first expansion block is clamped on the inner wall of the first connection groove. A connection mechanism is fixedly connected to the side of the first expansion block. The number of the mold bodies is two, and both of the two mold bodies are arranged on the surface of the connection mechanism. One end of the connection mechanism is fixedly connected to a connecting rod. A limiting mechanism is installed on the surface of the connecting rod. Guide rails and positioning tubes are respectively fixedly connected to the side of the limiting mechanism. A lead wire placement mechanism is slidably connected to the inner wall of the guide rail. An internal thread tube is arranged on one side of the lead wire placement mechanism. The inner wall of the internal thread tube is threadedly connected to the surface of the connecting rod.

[0006] Preferably, the connecting mechanism includes a mounting rod, guide rods are fixedly connected to both the top and bottom of the mounting rod, a limiting block is fixedly connected to the end of the guide rod away from the mounting rod, grooves are formed on the opposite surfaces of the two mold bodies, a guide groove is formed on the inner wall of the groove, a limiting groove is formed on the inner wall of the guide groove, the mounting rod is movably connected to the inner wall of the groove, the guide rod is slidably connected to the inner wall of the guide groove, and the limiting block is slidably connected to the inner wall of the limiting groove.

[0007] Preferably, the limiting mechanism includes a limiting plate and a second expansion block. Both the limiting plate and the second expansion block are sleeved on the surface of the connecting rod. The second expansion block is fixedly connected to the side surface of the limiting plate. The second expansion block is clamped in the inner wall of the second connecting groove. The guide rail is installed on the side surface of the limiting plate away from the second expansion block.

[0008] Preferably, a positioning groove is formed on the surface of the limiting plate, a positioning block is fixedly connected to the side surface of the mold body, and the positioning block is clamped in the inner wall of the positioning groove.

[0009] Preferably, the number of the guide rails is four, and the four guide rails are distributed in a circular array with the center of the positioning tube as the array center.

[0010] Preferably, the lead placement mechanism includes a wire arranging plate, a moving rod, a slider, a fixed column and an adjusting disc. The wire arranging plate is fixedly connected to the top of the moving rod. A card slot is formed on the surface of the wire arranging plate. The slider is slidably connected to the inner wall of the guide rail. The moving rod is fixedly connected to the surface of the slider. The fixed column is fixedly connected to the surface of the moving rod. A chute is formed on the surface of the adjusting disc, and the inner wall of the chute is slidably connected to the surface of the fixed column.

[0011] Preferably, a dial rod is fixedly connected to the surface of the adjusting disc.

[0012] Preferably, a guide strip is fixedly connected to the surface of the fixed bracket. An activity bracket is slidably connected to the surface of the guide strip. A positioning mechanism is arranged on the side surface of the activity bracket. A bearing seat is installed on the top of the activity bracket. A positioning shaft is installed in the inner wall of the bearing seat. A turntable is fixedly connected to one end of the positioning shaft, and the turntable is fixedly connected to the end of the inner threaded tube away from the adjusting disc.

[0013] Preferably, an anti-slip pad is fixedly connected to the end face of the inner threaded tube, and the side surface of the anti-slip pad is movably connected to the side surface of the position adjusting disc; a bearing is embedded in the supporting end of the fixed bracket, and the installation shaft is rotatably connected to the fixed bracket through the bearing.

[0014] Preferably, the positioning mechanism includes a sliding sleeve and a positioning knob. A threaded groove is formed on the top of the sliding sleeve, and the inner wall of the threaded groove is threadedly connected to the surface of the positioning knob. The bottom end of the positioning knob is movably connected to the top of the guide strip.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. For the low-voltage winding die of the wind power box-type transformer, by setting a fixed plate, a first expansion block, a die body, a connection mechanism, a limiting mechanism and an internal thread pipe, through the connection mechanism, the die body is arranged on the surface of the mounting rod. Before winding, the limiting mechanism and the lead placement mechanism are sleeved on the surface of the connecting rod. The first expansion block and the second expansion block on the side of the limiting mechanism are respectively clamped on the inner walls of the first connection groove and the second connection groove, and the two die bodies are expanded. After winding, the internal thread pipe and the limiting mechanism are disassembled in sequence. The two die bodies lose the support of the second expansion block and can be merged towards each other, and the surface of the die body is separated from the inner wall of the low-voltage winding, so as to facilitate the removal of the low-voltage winding from the surface of the die body.

[0017] 2. For the low-voltage winding die of the wind power box-type transformer, by setting a wire arranging plate, a moving rod, a slider, a fixed column and an adjusting disc, the surface of the adjusting disc is provided with a sliding groove. By rotating the adjusting disc, the position of the fixed column in the sliding groove can be adjusted. The movement of the fixed column drives the movement of the moving rod, and the movement of the moving rod drives the movement of the wire arranging plate. The position of the lead is determined in advance, and according to the position of the lead, the position of the wire arranging disc is adjusted, and the lead can be fixed on the inner wall of the card slot formed on the surface of the wire arranging disc, which is convenient for fixing the position of the lead.

[0018] 3. For the low-voltage winding die of the wind power box-type transformer, by setting a movable bracket, a bearing seat, a positioning shaft and a turntable, the movable bracket can support the bearing seat and the positioning shaft. The positioning shaft is fixedly connected to the side of the turntable, and the turntable is fixedly connected to the internal thread pipe. The positioning shaft provides support for the internal thread pipe, so as to provide support for the connecting rod and improve the stability of the die body during winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a side-sectional structural schematic diagram at the position of the connection mechanism of the present invention;

[0021] Figure 3 It is for the present invention Figure 2 Partial enlarged structural schematic diagram at the position of the lead placement mechanism in the present invention;

[0022] Figure 4 It is a side-sectional structural schematic diagram at the position of the positioning block of the present invention;

[0023] Figure 5 It is an exploded structural schematic diagram at the position of the lead placement mechanism of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the die body of the present invention;

[0025] Figure 7 This is a schematic structural diagram of the limit plate of the present invention.

[0026] In the figure: 1. Mold body; 2. Workbench; 3. Fixed bracket; 4. First connection groove; 5. Second connection groove; 6. Mounting shaft; 7. Fixed plate; 8. First expansion block; 9. Connection mechanism; 91. Mounting rod; 92. Guide rod; 93. Limit block; 10. Connecting rod; 11. Limiting mechanism; 111. Limit plate; 112. Second expansion block; 12. Guide rail; 13. Lead placement mechanism; 131. Wire arranging plate; 132. Moving rod; 133. Slide block; 134. Fixed column; 135. Adjusting disc; 14. Internal thread tube; 15. Groove; 16. Guide groove; 17. Limit groove; 18. Positioning groove; 19. Positioning block; 20. Pushing rod; 21. Guide strip; 22. Movable bracket; 23. Positioning mechanism; 231. Sliding sleeve; 232. Positioning knob; 24. Bearing seat; 25. Positioning shaft; 26. Turntable; 27. Anti-slip pad; 28. Positioning tube. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figure 1-7 , a low-voltage winding mold for a wind power box-type transformer, comprising: a mold body 1, a workbench 2, and a fixed bracket 3. First connection grooves 4 and second connection grooves 5 are respectively opened on both sides of the mold body 1. The fixed bracket 3 is installed on the top of the workbench 2. A mounting shaft 6 is rotatably connected to the supporting end of the fixed bracket 3. One end of the mounting shaft 6 is fixedly connected to a fixed plate 7. A first expansion block 8 is arranged on the side of the fixed plate 7 away from the mounting shaft 6. The first expansion block 8 is clamped on the inner wall of the first connection groove 4. A connection mechanism 9 is fixedly connected to the side of the first expansion block 8. The number of the mold bodies 1 is two, and both of the two mold bodies 1 are arranged on the surface of the connection mechanism 9. One end of the connection mechanism 9 is fixedly connected to a connecting rod 10. A limiting mechanism 11 is installed on the surface of the connecting rod 10. Guide rails 12 and positioning tubes 28 are respectively fixedly connected to the side of the limiting mechanism 11. A lead placement mechanism 13 is slidably connected to the inner wall of the guide rail 12. An internal thread tube 14 is arranged on one side of the lead placement mechanism 13. The inner wall of the internal thread tube 14 is threadedly connected to the surface of the connecting rod 10.

[0029] Among them; the connecting mechanism 9 includes a mounting rod 91. Guide rods 92 are fixedly connected to both the top and bottom of the mounting rod 91. A limiting block 93 is fixedly connected to one end of the guide rod 92 away from the mounting rod 91. Grooves 15 are formed on the opposite surfaces of the two mold bodies 1. A guide groove 16 is formed on the inner wall of the groove 15, and a limiting groove 17 is formed on the inner wall of the guide groove 16. The mounting rod 91 is movably connected to the inner wall of the groove 15, the guide rod 92 is slidably connected to the inner wall of the guide groove 16, and the limiting block 93 is slidably connected to the inner wall of the limiting groove 17. The mold body 1 can be guided and limited through the guide rod 92 and the limiting block 93, facilitating the installation and disassembly of the mold body 1.

[0030] Among them; the limiting mechanism 11 includes a limiting plate 111 and a second expansion block 112. Both the limiting plate 111 and the second expansion block 112 are sleeved on the surface of the connecting rod 10. The second expansion block 112 is fixedly connected to the side surface of the limiting plate 111. The second expansion block 112 is clamped in the inner wall of the second connection groove 5. The guide rail 12 is installed on the side surface of the limiting plate 111 away from the second expansion block 112. The second expansion block 112 and the first expansion block 8 on the side surface of the limiting mechanism 11 are respectively clamped in the inner walls of the second connection groove 5 and the first connection groove 4, expanding the two mold bodies 1. After the winding is completed, the inner threaded tube 14 and the limiting mechanism 11 are disassembled in sequence. The two mold bodies 1 lose the support of the second expansion block 112. By pushing the positioning block 19 with the hand, the two mold bodies 1 move towards each other, and the surface of the mold body 1 is separated from the inner wall of the low-voltage package, facilitating the removal of the low-voltage package from the surface of the mold body 1.

[0031] Among them; a positioning groove 18 is formed on the surface of the limiting plate 111. A positioning block 19 is fixedly connected to the side surface of the mold body 1. The positioning block 19 is clamped in the inner wall of the positioning groove 18. Before winding, the limiting mechanism 11 and the lead placement mechanism 13 are sleeved on the surface of the connecting rod 10. The side surface of the limiting plate 111 is attached to the side surface of the mold body 1. At this time, the positioning block 19 is clamped into the inner wall of the positioning groove 18, enhancing the tightness of the connection between the limiting plate 111 and the mold body 1.

[0032] Among them; the number of the guide rails 12 is four. The four guide rails 12 are distributed in a circular array with the center of the positioning tube 28 as the array center. By setting the guide rails 12 to guide the lead placement mechanism 13, it is convenient to fix the leads led out from different positions of the low-voltage package.

[0033] Wherein; the lead placement mechanism 13 includes a wire management plate 131, a moving rod 132, a slider 133, a fixed column 134 and an adjusting disk 135, the wire management plate 131 is fixedly connected to the top of the moving rod 132, a card slot is provided on the surface of the wire management plate 131, the slider 133 is slidably connected to the inner wall of the guide rail 12, the moving rod 132 is fixedly connected to the surface of the slider 133, the fixed column 134 is fixedly connected to the surface of the moving rod 132, a slide slot is provided on the surface of the adjusting disk 135, and the inner wall of the slide slot is slidably connected to the surface of the fixed column 134, the surface of the adjusting disk 135 is provided with a slide slot, and the adjusting disk 135 is rotated to adjust the position of the fixed column 134 in the slide slot, the fixed column 134 moves to drive the moving rod 132 to move, and the moving rod 132 moves to drive the wire management plate 131 to move, the position of the lead is predetermined, and the position of the wire management disk is adjusted according to the position of the lead, and the lead can be fixed to the inner wall of the card slot provided on the surface of the wire management disk, which is convenient for fixing the position of the lead.

[0034] The surface of the adjustment disk 135 is fixedly connected with a lever 20, and the lever 20 is convenient for hand contact, and the adjustment disk 135 can be driven to rotate by moving the lever 20.

[0035] Among them; a guide strip 21 is fixedly connected to the surface of the fixed bracket 3, a movable bracket 22 is slidably connected to the surface of the guide strip 21, a positioning mechanism 23 is arranged on the side of the movable bracket 22, a bearing seat 24 is installed on the top of the movable bracket 22, a positioning shaft 25 is installed on the inner wall of the bearing seat 24, one end of the positioning shaft 25 is fixedly connected to a turntable 26, the turntable 26 is fixedly connected to the end of the internal threaded tube 14 away from the adjusting disk 135, the movable bracket 22 can support the bearing seat 24 and the positioning shaft 25, the positioning shaft 25 is fixedly connected to the side of the turntable 26, the turntable 26 is fixedly connected to the internal threaded tube 14, and the internal threaded tube 14 is supported by the positioning shaft 25, thereby providing support for the connecting rod 10, thereby improving the stability of the mold body 1 during winding.

[0036] Among them; the end face of the internal threaded tube 14 is fixedly connected with an anti-skid pad 27, and the side of the anti-skid pad 27 is movably connected to the side of the position adjustment disk 135. The anti-skid pad 27 can increase the friction between the adjustment disk 135 and avoid relative sliding between the surface of the adjustment disk 135 and the end face of the internal threaded tube 14 during rotation.

[0037] Among them; the positioning mechanism 23 includes a sliding sleeve 231 and a positioning knob 232, a threaded groove is opened on the top of the sliding sleeve 231, and the inner wall of the threaded groove is threadedly connected to the surface of the positioning knob 232, the bottom end of the positioning knob 232 is movably connected to the top of the guide bar 21, and the positioning knob 232 is rotated, and the bottom end of the positioning knob 232 contacts the top of the guide bar 21 and presses against the guide bar 21, so that the position of the sliding sleeve 231 is fixed by the positioning knob 232, and the position of the movable bracket 22 can be fixed.

[0038] Among them; the supporting end of the fixed bracket 3 is inlaid with a bearing, and the mounting shaft 6 is rotatably connected to the fixed bracket 3 through the bearing. The bearing can be withdrawn to provide rotation support for the mounting shaft 6, reducing fluctuations during the rotation of the mounting shaft 6 to avoid uneven winding.

[0039] Working principle: pre-setting work is performed before winding, the installation shaft 6 is externally connected to the winding machine, the mold body 1 is set on the surface of the installation rod 91, the limiting mechanism 11 and the lead placement mechanism 13 are sleeved on the surface of the connecting rod 10 before winding, the first expansion block 8 and the second expansion block 112 on the side of the limiting mechanism 11 are respectively clamped on the inner walls of the first connecting groove 4 and the second connecting groove 5, the two mold bodies 1 are spread apart, according to the designed position of the transformer low-voltage package lead, the position of the lead is pre-determined, and the position of the wire arrangement disk is adjusted according to the position of the lead, the surface of the adjustment disk 135 is provided with a slide groove, and the hand moves the lever 2 0, the lever 20 can be turned to drive the adjusting plate 135 to rotate, and the adjusting plate 135 is rotated, and the inner wall of the slide slot squeezes the fixed column 134, pushing the fixed column 134 to move, thereby adjusting the position of the fixed column 134 in the slide slot, and the movement of the fixed column 134 drives the moving rod 132 to move, and the movement of the moving rod 132 drives the wire management plate 131 to move, and the wire management plate 131 is moved to the position of the subsequent lead. During the winding process, the lead can be fixed on the inner wall of the card slot on the surface of the wire management plate 131, which is convenient for fixing the position of the lead. After determining the position of the wire management plate 131, the movable bracket 22 is moved so that the internal threaded tube 14 Docking with the connecting rod 10, rotating the turntable 26 drives the internal threaded tube 14 to rotate, so that the internal threaded tube 14 is threadedly connected to the surface of the connecting rod 10, the internal threaded tube 14 fixes the position of the lead placement mechanism 13 and the limit mechanism 11, and the adjusting disk 135 is clamped by the positioning tube 28 and the internal threaded tube 14 to fix the position of the adjusting disk 135, and the positioning knob 232 is rotated to fix the position of the sliding sleeve 231 by the positioning knob 232, thereby fixing the position of the movable bracket 22, and the movable bracket 22 can support the bearing seat 24 and the positioning shaft 25, and the positioning shaft 25 is fixedly connected to the side of the turntable 26, The turntable 26 is fixedly connected to the internal threaded tube 14, and the internal threaded tube 14 is supported by the positioning shaft 25, thereby providing support for the connecting rod 10, improving the stability of the mold body 1 during winding, turning on the winding machine, and starting to wind after wrapping the insulating paper and the metal frame on the mold body 1. After the winding is completed, the internal threaded tube 14 and the limiting mechanism 11 are removed in turn. The two mold bodies 1 lose the support of the second expansion block 112, and the positioning block 19 is pushed by hand to drive the two mold bodies 1 to move toward each other. The surface of the mold body 1 is separated from the inner wall of the low-pressure package, which facilitates the removal of the low-pressure package from the surface of the mold body 1.

[0040] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage winding die for a box-type transformer in wind power generation, characterized in that Including: A mold body (1), a workbench (2) and a fixing bracket (3). First connection grooves (4) and second connection grooves (5) are respectively formed on both sides of the mold body (1). The fixing bracket (3) is installed on the top of the workbench (2). A mounting shaft (6) is rotatably connected to the supporting end of the fixing bracket (3). One end of the mounting shaft (6) is fixedly connected to a fixing plate (7). A first expansion block (8) is arranged on the side of the fixing plate (7) away from the mounting shaft (6). The first expansion block (8) is clamped on the inner wall of the first connection groove (4). A connection mechanism (9) is fixedly connected to the side of the first expansion block (8). The number of the mold bodies (1) is two, and both of the two mold bodies (1) are arranged on the surface of the connection mechanism (9). One end of the connection mechanism (9) is fixedly connected to a connecting rod (10). A limiting mechanism (11) is installed on the surface of the connecting rod (10). A guide rail (12) and a positioning tube (28) are respectively fixedly connected to the side of the limiting mechanism (11). A lead placing mechanism (13) is slidably connected to the inner wall of the guide rail (12). An internal thread tube (14) is arranged on one side of the lead placing mechanism (13). The inner wall of the internal thread tube (14) is threadedly connected to the surface of the connecting rod (10).

2. A low-voltage winding die for a wind power box-type transformer according to claim 1, characterized in that, The connection mechanism (9) includes a mounting rod (91). Guide rods (92) are fixedly connected to both the top and the bottom of the mounting rod (91). A limiting block (93) is fixedly connected to the end of the guide rod (92) away from the mounting rod (91). Grooves (15) are respectively formed on the opposite surfaces of the two mold bodies (1). A guide groove (16) is formed on the inner wall of the groove (15). A limiting groove (17) is formed on the inner wall of the guide groove (16). The mounting rod (91) is movably connected to the inner wall of the groove (15). The guide rod (92) is slidably connected to the inner wall of the guide groove (16). The limiting block (93) is slidably connected to the inner wall of the limiting groove (17).

3. A low-voltage winding die for a wind power box-type transformer according to claim 1, characterized in that, The limiting mechanism (11) includes a limiting plate (111) and a second expansion block (112). Both the limiting plate (111) and the second expansion block (112) are sleeved on the surface of the connecting rod (10). The second expansion block (112) is fixedly connected to the side of the limiting plate (111). The second expansion block (112) is clamped on the inner wall of the second connection groove (5). The guide rail (12) is installed on the side of the limiting plate (111) away from the second expansion block (112).

4. A low-voltage winding die for a box-type transformer of wind power generation according to claim 3, characterized in that, A positioning groove (18) is formed on the surface of the limiting plate (111). A positioning block (19) is fixedly connected to the side of the mold body (1). The positioning block (19) is clamped on the inner wall of the positioning groove (18).

5. A low-voltage winding die for a wind power box-type transformer according to claim 1, characterized in that, The number of the guide rails (12) is four, and the four guide rails (12) are distributed in a circular array with the center of the positioning tube (28) as the array center.

6. The low-voltage winding die of a box-type transformer for wind power generation according to claim 1, characterized in that The lead placement mechanism (13) includes a wire arranging plate (131), a moving rod (132), a slider (133), a fixed column (134) and an adjusting disc (135). The wire arranging plate (131) is fixedly connected to the top of the moving rod (132). A card slot is formed on the surface of the wire arranging plate (131). The slider (133) is slidably connected to the inner wall of the guide rail (12). The moving rod (132) is fixedly connected to the surface of the slider (133). The fixed column (134) is fixedly connected to the surface of the moving rod (132). A chute is formed on the surface of the adjusting disc (135), and the inner wall of the chute is slidably connected to the surface of the fixed column (134).

7. A low-voltage winding die for a wind power box-type transformer according to claim 6, characterized in that, A dial rod (20) is fixedly connected to the surface of the adjusting disc (135).

8. A low-voltage winding die for a wind power box-type transformer according to claim 1, characterized in that, A guide strip (21) is fixedly connected to the surface of the fixed bracket (3). An activity bracket (22) is slidably connected to the surface of the guide strip (21). A positioning mechanism (23) is arranged on the side of the activity bracket (22). A bearing seat (24) is installed on the top of the activity bracket (22). A positioning shaft (25) is installed in the inner wall of the bearing seat (24). One end of the positioning shaft (25) is fixedly connected to a turntable (26). The turntable (26) is fixedly connected to one end of the internal thread tube (14) away from the adjusting disc (135).

9. The low-voltage winding die of a box-type transformer for wind power generation according to claim 1, characterized in that An anti-slip pad (27) is fixedly connected to the end face of the internal thread tube (14), and the side of the anti-slip pad (27) is movably connected to the side of the position adjusting disc (135); A bearing is embedded in the supporting end of the fixed bracket (3), and the mounting shaft (6) is rotatably connected to the fixed bracket (3) through the bearing.

10. A low-voltage winding die for a wind power box-type transformer according to claim 8, characterized in that, The positioning mechanism (23) includes a sliding sleeve (231) and a positioning knob (232). A threaded groove is formed on the top of the sliding sleeve (231), and the inner wall of the threaded groove is threadedly connected to the surface of the positioning knob (232). The bottom end of the positioning knob (232) is movably connected to the top of the guide strip (21).

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