Dry-type power transformer iron core coil winding equipment
By designing a dry power transformer core coil winding equipment with gears and motors, the problem of the equipment shutdown when replacing the winding roller is solved, and the continuity and efficiency of coil winding are improved.
Patent Information
- Application Number
- CN202420272281.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing dry power transformer core coil winding equipment needs to be shut down when replacing the winding roller, resulting in wasted time and inefficient.
A device including a workbench, a lower rotating disc, an upper rotating disc, a plurality of winding rollers and a motor bracket is designed. Through the cooperation of gears and motors, continuous rotation and replacement of winding rollers are realized to avoid shutdown and replacement.
The continuity of the coil winding process is achieved, downtime is reduced, and winding efficiency and productivity are improved.
Smart Images
Figure CN222483131U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a dry-type power transformer iron core coil winding device. Background Art
[0002] As an efficient, safe and environmentally friendly transformer, dry-type power transformers occupy an important position in the power system. Dry-type transformers are widely used in various power systems, such as power plants, substations, industrial plants and commercial buildings. Due to their compact structure, easy maintenance and good fire resistance, dry-type transformers have become the first choice for many important places. Dry-type transformers are mainly composed of iron core, winding and box. The iron core is the core part of the transformer, made of high magnetic permeability material, used to transmit magnetic field. The winding is the circuit part of the transformer, which is wound by copper or aluminum wire and used to generate and transmit current. The box is the outer shell of the transformer, which plays a role of protection and support. The transformer core coil is the core part of the transformer to perform the voltage conversion function. When the alternating current passes through the iron core coil, the magnetic field generated in the coil causes the energy to be converted between voltage and current, thereby achieving voltage increase or decrease.
[0003] The current method for winding the core coil in the industry is usually to place the winding roller on the winding equipment, remove it after the winding is completed, reinstall the new winding roller and wind it again. During the period of replacing the winding roller, the equipment is in a shutdown state, which wastes a lot of time and reduces the winding efficiency of the core coil. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a dry-type power transformer core coil winding device which improves coil winding efficiency and increases productivity.
[0005] The utility model discloses a dry-type power transformer core coil winding device, comprising a workbench, a lower rotating disk, a connecting shaft, an upper rotating disk, a plurality of winding rollers, a first motor bracket and a second motor bracket. The lower rotating disk is rotatably mounted on the workbench, the connecting shaft is fixedly mounted on the lower rotating disk, the upper rotating disk is fixedly mounted on the top end of the connecting shaft, the lower rotating disk, the connecting shaft and the upper rotating disk are coaxial, the two ends of the plurality of winding rollers are respectively slidably mounted on the lower rotating disk and the upper rotating disk, one end of the plurality of winding rollers is fixedly mounted with a first gear, the first motor bracket is fixedly mounted on the workbench, the top end of the first motor bracket is fixedly mounted with a first motor, the output end of the first motor is fixedly mounted with a second gear, the second gear is meshed with the outer teeth of the first gear, the second motor bracket is fixedly mounted on the bottom of the workbench, the bottom of the second motor bracket is fixedly mounted with a second motor, and the output end of the second motor is fixedly connected to the bottom end of the lower rotating disk.
[0006] Furthermore, bearings are rotatably installed at both ends of each winding roller, a plurality of lower mounting grooves are arranged on the lower rotating disk, and the plurality of lower mounting grooves are evenly distributed on the lower rotating disk, a plurality of upper mounting grooves are arranged on the upper rotating disk, and the plurality of upper mounting grooves are evenly distributed on the upper rotating disk, the plurality of lower mounting grooves respectively correspond to the plurality of upper mounting grooves, and the lower mounting grooves and the upper mounting grooves are both matched with the bearings.
[0007] Furthermore, it also includes a fixing ring, which is fixedly installed on the workbench, and the circumferential outer walls at both ends of multiple winding rollers are in contact with the circumferential inner wall of the fixing ring. The fixing ring is provided with grooves for installing the winding rollers on the lower rotating disk and the upper rotating disk, ensuring that the upper and lower ends of the fixing ring do not contact the lower rotating disk and the upper rotating disk.
[0008] Furthermore, it also includes a first screw bracket, a third motor, a wire plate and multiple wire wheels. The first screw bracket is fixedly mounted on the workbench, the third motor is fixedly mounted on the top of the first screw bracket, the first screw bracket is rotatably mounted with a first screw nut pair, the output end of the third motor is fixedly connected to one end of the first screw nut pair, the wire plate is threadedly mounted on the first screw nut pair through the screw nut, the multiple wire wheels are rotatably mounted on the wire plate, and the multiple wire wheels are staggered up and down on the wire plate.
[0009] Furthermore, it also includes a second screw bracket, a fourth motor and a pay-off shaft mounting plate, the second screw bracket is fixedly mounted on the workbench, the fourth motor is fixedly mounted on the second screw bracket, a second screw nut pair is arranged on the second screw bracket, an output end of the fourth motor is fixedly connected to one end of the second screw nut pair, the pay-off shaft mounting plate is threadedly mounted on the second screw nut pair through the screw nut, the pay-off shaft is rotatably mounted on the pay-off shaft mounting plate, and a thread is arranged on one end of the pay-off shaft.
[0010] Furthermore, it also includes a first friction disk, a second friction disk and a first spring. The first friction disk is fixedly mounted on the end of the pay-off shaft away from the thread, the second friction disk is slidably mounted on the pay-off shaft, the first spring is mounted on the pay-off shaft, one end of the first spring is fixedly connected to the second friction disk, and the other end of the first spring is fixedly connected to the mounting plate of the pay-off shaft.
[0011] Furthermore, it also includes a tensioning block and a tensioning wheel. A sliding groove is provided on the wire plate. The tensioning block is slidably installed in the sliding groove. The bottom end of the tensioning block is fixedly connected to a second spring. The bottom end of the second spring is fixedly connected to the bottom end of the sliding groove. The tensioning wheel is rotatably installed on the tensioning block.
[0012] Furthermore, it also includes a cylinder and a rubber block, the cylinder is fixedly installed on the wire board, and the rubber block is fixedly installed on the output end of the cylinder.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] When the coil needs to be wound, the winding roller to be wound is installed on the lower rotating disk and the upper rotating disk, the second motor is started to rotate the lower rotating disk, and the upper rotating disk is driven to rotate synchronously under the connection action of the connecting shaft, and the winding roller is driven to rotate to the required position, so that the first gear on the winding roller is meshed with the outer teeth of the second gear, the first motor is started to rotate the second gear at a constant speed, and the first gear is driven to rotate, so that the winding roller rotates at a constant speed to start winding the coil. While the winding roller is winding the coil, another winding roller to be wound is installed on the lower rotating disk and the upper rotating disk. When the first winding roller is wound, the second motor is started to rotate the lower rotating disk and the upper rotating disk to make the winding roller leave, and the winding roller to be wound rotates to the required position, and reciprocates in this way, so as to achieve the purpose of preparing one winding roller while the coil is being wound, eliminating the time of stopping the machine to replace the winding roller, keeping the equipment in working condition, improving the coil winding efficiency, and improving productivity. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model will be further described below in conjunction with the accompanying drawings.
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a structural schematic diagram of an upper rotating disk and a lower rotating disk;
[0018] Figure 3 It is a schematic diagram of the structure of the winding roller;
[0019] Figure 4 It is a schematic diagram of the bottom structure of the workbench;
[0020] Figure 5 It is a schematic diagram of the structure of the fixed ring;
[0021] Figure 6 It is a schematic diagram of the installation structure of the conductor plate;
[0022] Figure 7 It is a schematic diagram of the installation structure of the pay-off shaft installation plate;
[0023] Markings in the accompanying drawings: 1, workbench; 2, lower rotating disk; 3, connecting shaft; 4, upper rotating disk; 5, winding roller; 6, first gear; 7, first motor bracket; 8, first motor; 9, second gear; 10, second motor bracket; 11, second motor; 12, bearing; 13, lower mounting groove; 14, upper mounting groove; 15, fixing ring; 16, first screw bracket; 17, third motor; 18, wire guide plate; 19, wire guide wheel; 20, second screw bracket; 21, fourth motor; 22, pay-off shaft mounting plate; 23, pay-off shaft; 24, first friction disk; 25, second friction disk; 26, first spring; 27, tensioning block; 28, second spring; 29, tensioning wheel; 30, cylinder; 31, rubber block. DETAILED DESCRIPTION
[0024] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0025] like Figures 1 to 7As shown, the utility model of the dry-type power transformer core coil winding equipment includes a workbench 1, a lower rotating disk 2, a connecting shaft 3, an upper rotating disk 4, a plurality of winding rollers 5, a first motor bracket 7 and a second motor bracket 10, the lower rotating disk 2 is rotatably mounted on the workbench 1, the connecting shaft 3 is fixedly mounted on the lower rotating disk 2, the upper rotating disk 4 is fixedly mounted on the top of the connecting shaft 3, the lower rotating disk 2, the connecting shaft 3, and the upper rotating disk 4 are coaxial, the two ends of the plurality of winding rollers 5 are respectively slidably mounted on the lower rotating disk 2 and the upper rotating disk 4, one end of the plurality of winding rollers 5 is fixedly mounted with a first gear 6, the first motor bracket 7 is fixedly mounted on the workbench 1, A first motor 8 is fixedly mounted on the top of the first motor bracket 7, a second gear 9 is fixedly mounted on the output end of the first motor 8, the second gear 9 is meshed with the outer teeth of the first gear 6, a second motor bracket 10 is fixedly mounted on the bottom of the workbench 1, a second motor 11 is fixedly mounted on the bottom of the second motor bracket 10, and the output end of the second motor 11 is fixedly connected to the bottom end of the lower rotating disk 2; when the coil needs to be wound, the winding roller 5 to be wound is installed on the lower rotating disk 2 and the upper rotating disk 4, the second motor 11 is started to rotate the lower rotating disk 2, and the upper rotating disk 4 is driven to rotate synchronously under the connection of the connecting shaft 3, and the winding roller 5 is driven to rotate to the required position, so that the first gear 6 on the winding roller 5 is meshed with the outer teeth of the second gear 9, and the winding roller 5 is started. The first motor 8 causes the second gear 9 to rotate at a constant speed, driving the first gear 6 to rotate, so that the winding roller 5 rotates at a constant speed to start winding the coil. While the winding roller 5 is winding the coil, another winding roller 5 to be wound is installed on the lower rotating disk 2 and the upper rotating disk 4. When the first winding roller 5 is wound, the second motor 11 is started to rotate the lower rotating disk 2 and the upper rotating disk 4 to make the winding roller 5 that has been wound leave, and the winding roller 5 to be wound rotates to the required position, and so on. The purpose of reciprocating this way is achieved that while one winding roller 5 is winding the coil, the other winding roller 5 to be wound is ready, thereby eliminating the time of stopping the machine to replace the winding roller 5, keeping the equipment in working condition at all times, improving the coil winding efficiency, and improving productivity.
[0026] As a preferred embodiment of the above embodiment, bearings 12 are rotatably installed at both ends of each winding roller 5, a plurality of lower mounting grooves 13 are provided on the lower rotating disk 2, and the plurality of lower mounting grooves 13 are evenly distributed on the lower rotating disk 2, a plurality of upper mounting grooves 14 are provided on the upper rotating disk 4, and the plurality of upper mounting grooves 14 are evenly distributed on the upper rotating disk 4, and the plurality of lower mounting grooves 13 correspond to the plurality of upper mounting grooves 14 respectively, and the lower mounting grooves 13 and the upper mounting grooves 14 are both matched with the bearings 12; through the above arrangement, when the winding roller 5 needs to be installed on the lower rotating disk 2 and the upper rotating disk 4, the bearings 12 at both ends of the winding roller 5 are respectively slid into the lower mounting grooves 13 and the upper mounting grooves 14, so as to achieve the purpose of quickly replacing the winding roller 5, improve work efficiency, and enhance the convenience of the equipment.
[0027] As a preferred embodiment of the above embodiment, it also includes a fixing ring 15, which is fixedly installed on the workbench 1, and the circumferential outer walls at both ends of the plurality of winding rollers 5 are in contact with the circumferential inner walls of the fixing ring 15. The fixing ring 15 is provided with grooves for installing the winding rollers 5 on the lower rotating disk 2 and the upper rotating disk 4, thereby ensuring that the upper and lower ends of the fixing ring 15 are not in contact with the lower rotating disk 2 and the upper rotating disk 4. Through the above arrangement, when the lower rotating disk 2 and the upper rotating disk 4 rotate simultaneously to drive the winding rollers 5 to rotate accordingly, the fixing ring 15 ensures that the winding rollers 5 will not deviate or shake, thereby ensuring that the winding rollers 5 are firmly fixed on the lower rotating disk 2 and the upper rotating disk 4, thereby improving the stability of the equipment.
[0028] As a preferred embodiment of the above embodiment, the first lead screw support 16, the third motor 17, the guide plate 18 and a plurality of guide wheels 19 are also included. The first lead screw support 16 is fixedly mounted on the workbench 1, the third motor 17 is fixedly mounted on the top of the first lead screw support 16, the first lead screw nut pair is rotatably mounted on the first lead screw support 16, the output end of the third motor 17 is fixedly connected to one end of the first lead screw nut pair, the guide plate 18 is threadedly mounted on the first lead screw nut pair through the lead screw nut, and the plurality of guide wheels 19 are rotatably mounted on the guide plate 18. On the wire plate 18, multiple wire wheels 19 are staggered up and down on the wire plate 18; through the above arrangement, when the coil is wound, the third motor 17 is started to make the wire plate 18 move back and forth at a uniform speed on the first screw nut pair under the connection action of the screw nut, and the wire material slides through the circumferential outer walls of the multiple wire wheels 19 in turn to reach the winding roller 5 for winding. Under the cooperation of the third motor 17 and the first screw nut pair, it is ensured that the wire material passes through the multiple wire wheels 19 at a uniform speed, so that the wire material remains neat when being wound on the winding roller 5, thereby improving the applicability of the equipment.
[0029] As a preferred embodiment of the above embodiment, it also includes a second screw support 20, a fourth motor 21 and a pay-off shaft mounting plate 22, the second screw support 20 is fixedly mounted on the workbench 1, the fourth motor 21 is fixedly mounted on the second screw support 20, a second screw nut pair is arranged on the second screw support 20, the output end of the fourth motor 21 is fixedly connected to one end of the second screw nut pair, the pay-off shaft mounting plate 22 is threadedly mounted on the second screw nut pair through the screw nut, a pay-off shaft 23 is rotatably mounted on the pay-off shaft mounting plate 22, and one end of the pay-off shaft 23 is provided with a thread; through the above arrangement, when the coil is wound, the wire is mounted on the pay-off shaft 23, the nut is spirally connected to the thread at one end of the pay-off shaft 23 to fix the wire, and the fourth motor 21 is started to make the pay-off shaft mounting plate 22 move back and forth at a uniform speed on the second screw nut pair under the connection action of the screw nut, so that the wire is always transported at the same position, ensuring the accuracy of the wire transportation and improving the stability of the coil winding.
[0030] As a preferred embodiment of the above embodiment, it also includes a first friction disk 24, a second friction disk 25 and a first spring 26, the first friction disk 24 is fixedly mounted on the end of the pay-off shaft 23 away from the thread, the second friction disk 25 is slidably mounted on the pay-off shaft 23, the first spring 26 is mounted on the pay-off shaft 23, one end of the first spring 26 is fixedly connected to the second friction disk 25, and the other end of the first spring 26 is fixedly connected to the pay-off shaft mounting plate 22; through the above arrangement, the second friction disk 25 is always in contact with the first friction disk 24 under the elastic action of the first spring 26, when the wire is conveyed, the tension of the coil winding is greater than the friction force between the first friction disk 24 and the second friction disk 25, so that the pay-off shaft 23 rotates, so that the wire is continuously conveyed, and when the wire conveying stops, the second friction disk 25 continues to press the first friction disk 24 under the elastic action of the first spring 26, so that the pay-off shaft 23 will not rotate and cause the wire to be chaotic, thereby improving the practicality of the equipment.
[0031] As a preferred embodiment of the above embodiment, it also includes a tensioning block 27 and a tensioning wheel 29. A sliding groove is provided on the wire plate 18. The tensioning block 27 is slidably installed in the sliding groove. The bottom end of the tensioning block 27 is fixedly connected with a second spring 28. The bottom end of the second spring 28 is fixedly connected to the bottom end of the sliding groove. The tensioning wheel 29 is rotatably installed on the tensioning block 27. Through the above arrangement, when the wire passes through the circumferential outer wall of the tensioning wheel 29, the tensioning block 27 keeps sliding upward under the elastic action of the second spring 28, driving the tensioning wheel 29 to move upward, so that the tensioning wheel 29 can constantly tension the wire, prevent the wire from loosening and affecting the winding, and improve the winding quality.
[0032] As a preferred embodiment of the above embodiment, it also includes a cylinder 30 and a rubber block 31. The cylinder 30 is fixedly installed on the wire board 18, and the rubber block 31 is fixedly installed at the output end of the cylinder 30. When the coil is wound, the cylinder 30 is started to make the rubber block 31 beat the wound coil to ensure the flatness of the coil during winding, prevent the wire from being pressed, and improve the stability of the coil during winding.
[0033] The utility model relates to a dry-type power transformer core coil winding device. When the coil needs to be wound, the winding roller 5 to be wound is installed on the lower rotating disk 2 and the upper rotating disk 4, and the second motor 11 is started to rotate the lower rotating disk 2 and drive the upper rotating disk 4 to rotate synchronously under the connection action of the connecting shaft 3, and drive the winding roller 5 to rotate to the required position, so that the first gear 6 on the winding roller 5 is meshed with the outer teeth of the second gear 9; the wire to be wound is installed on the pay-off shaft 23, so that the wire slides through the circumferential outer walls of multiple wire wheels 19 in sequence to reach the winding roller 5 for winding; the first motor 8 is started to rotate the second gear 9 at a uniform speed, drive the first gear 6 to rotate, and make the winding roller 5 rotate at a uniform speed to start winding the coil; at the same time, the third motor 17 is started to make the wire plate 18 move at a uniform speed on the first screw nut pair under the connection action of the screw nut, and under the cooperation of the third motor 17 and the first screw nut pair, it is ensured that the wire passes through the first screw nut pair at a uniform speed. Multiple wire wheels 19 keep the wire neat when it is wound on the winding roller 5; at the same time, the fourth motor 21 is started to make the pay-off shaft mounting plate 22 move at a constant speed on the second lead screw nut pair under the connection action of the lead screw nut, so that the wire is kept in the same position for transportation, and at the same time, the pay-off shaft 23 is rotated under the tension of the coil winding, so that the wire is continuously transported; while the winding roller 5 is winding the coil, another winding roller 5 to be wound is installed on the lower rotating disk 2 and the upper rotating disk 4. When the first winding roller 5 is wound, the second motor 11 is started to rotate the lower rotating disk 2 to drive the upper rotating disk 4 to rotate synchronously so that the winding roller 5 that has been wound leaves, and the winding roller 5 to be wound rotates to the required position, and this reciprocating process is used to achieve the purpose of preparing one winding roller 5 while the coil is being wound on the other winding roller 5, eliminating the time of stopping the machine to replace the winding roller 5, keeping the equipment in working condition, improving the coil winding efficiency, and improving productivity.
[0034] The installation method, connection method or setting method of the dry-type power transformer core coil winding device of the utility model are all common mechanical methods, and can be implemented as long as the beneficial effects can be achieved.
[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A dry-type power transformer core coil winding device, characterized in that: The invention comprises a workbench (1), a lower rotating disk (2), a connecting shaft (3), an upper rotating disk (4), a plurality of winding rollers (5), a first motor bracket (7) and a second motor bracket (10), wherein the lower rotating disk (2) is rotatably mounted on the workbench (1), the connecting shaft (3) is fixedly mounted on the lower rotating disk (2), the upper rotating disk (4) is fixedly mounted on the top of the connecting shaft (3), the lower rotating disk (2), the connecting shaft (3) and the upper rotating disk (4) are coaxial, the two ends of the plurality of winding rollers (5) are respectively slidably mounted on the lower rotating disk (2) and the upper rotating disk (4), one end of each of the plurality of winding rollers (5) is fixedly mounted with a first gear (6), and the first motor bracket (7) is fixedly mounted on the workbench (1). A first motor (8) is fixedly mounted on the top of the first motor bracket (7); a second gear (9) is fixedly mounted on the output end of the first motor (8); the second gear (9) is meshed with the outer teeth of the first gear (6); a second motor bracket (10) is fixedly mounted on the bottom of the workbench (1); a second motor (11) is fixedly mounted on the bottom of the second motor bracket (10); and the output end of the second motor (11) is fixedly connected to the bottom end of the lower rotating disk (2).
2. The dry-type power transformer core coil winding equipment according to claim 1, characterized in that: Each winding roller (5) has bearings (12) rotatably mounted at both ends, a plurality of lower mounting grooves (13) are provided on the lower rotating disk (2), and the plurality of lower mounting grooves (13) are evenly distributed on the lower rotating disk (2), a plurality of upper mounting grooves (14) are provided on the upper rotating disk (4), and the plurality of upper mounting grooves (14) are evenly distributed on the upper rotating disk (4), the plurality of lower mounting grooves (13) respectively correspond to the plurality of upper mounting grooves (14), and the lower mounting grooves (13) and the upper mounting grooves (14) are both matched with the bearings (12).
3. The dry-type power transformer core coil winding equipment according to claim 1, characterized in that: The invention also comprises a fixing ring (15), the fixing ring (15) being fixedly mounted on the workbench (1), the circumferential outer walls at both ends of the plurality of winding rollers (5) being in contact with the circumferential inner wall of the fixing ring (15), and the fixing ring (15) being provided with slots for mounting the winding rollers (5) on the lower rotating disk (2) and the upper rotating disk (4), so as to ensure that the upper and lower ends of the fixing ring (15) are not in contact with the lower rotating disk (2) and the upper rotating disk (4).
4. The dry-type power transformer core coil winding equipment according to claim 1, characterized in that: It also includes a first lead screw support (16), a third motor (17), a guide plate (18) and a plurality of guide wheels (19), wherein the first lead screw support (16) is fixedly mounted on the workbench (1), the third motor (17) is fixedly mounted on the top of the first lead screw support (16), a first lead screw nut pair is rotatably mounted on the first lead screw support (16), an output end of the third motor (17) is fixedly connected to one end of the first lead screw nut pair, the guide plate (18) is threadedly mounted on the first lead screw nut pair through the lead screw nut, the plurality of guide wheels (19) are rotatably mounted on the guide plate (18), and the plurality of guide wheels (19) are staggeredly distributed up and down on the guide plate (18).
5. The dry-type power transformer core coil winding equipment according to claim 1, characterized in that: The invention also comprises a second lead screw support (20), a fourth motor (21) and a pay-off shaft mounting plate (22), wherein the second lead screw support (20) is fixedly mounted on the workbench (1), the fourth motor (21) is fixedly mounted on the second lead screw support (20), a second lead screw nut pair is arranged on the second lead screw support (20), an output end of the fourth motor (21) is fixedly connected to one end of the second lead screw nut pair, the pay-off shaft mounting plate (22) is arranged on the second lead screw nut pair through a lead screw nut threaded sleeve, a pay-off shaft (23) is rotatably mounted on the pay-off shaft mounting plate (22), and one end of the pay-off shaft (23) is provided with a thread.
6. The dry-type power transformer core coil winding equipment according to claim 5, characterized in that: The utility model also comprises a first friction disk (24), a second friction disk (25) and a first spring (26), wherein the first friction disk (24) is fixedly mounted on an end of the pay-off shaft (23) away from the thread, the second friction disk (25) is slidably mounted on the pay-off shaft (23), the first spring (26) is mounted on the pay-off shaft (23), one end of the first spring (26) is fixedly connected to the second friction disk (25), and the other end of the first spring (26) is fixedly connected to the pay-off shaft mounting plate (22).
7. The dry-type power transformer core coil winding equipment according to claim 4, characterized in that: It also includes a tensioning block (27) and a tensioning wheel (29), a sliding groove is provided on the wire plate (18), the tensioning block (27) is slidably installed in the sliding groove, the bottom end of the tensioning block (27) is fixedly connected to a second spring (28), the bottom end of the second spring (28) is fixedly connected to the bottom end of the sliding groove, and the tensioning wheel (29) is rotatably installed on the tensioning block (27).
8. The dry-type power transformer core coil winding equipment according to claim 4, characterized in that: It also includes a cylinder (30) and a rubber block (31), wherein the cylinder (30) is fixedly mounted on the wire board (18), and the rubber block (31) is fixedly mounted on the output end of the cylinder (30).