Film winding device for large transformer production

Abstract

The utility model relates to a film winding device for large transformer production, which comprises a base, a film winding mechanism is arranged on the base, the film winding mechanism comprises a support ring, a film winding ring and a discharging roll, a support frame is arranged on the base, and the film winding ring is arranged on the support frame. The supporting ring is arranged on the supporting frame in a longitudinal sliding mode and is in transmission connection with a first motor arranged on the supporting frame, the film winding ring is rotationally arranged on the supporting ring and is in transmission connection with a second motor arranged on the supporting ring, and the discharging roll is rotationally arranged on the film winding ring. The film winding device for production of the large transformer is more suitable for film winding operation of the large transformer and has better practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer production equipment, in particular to a film winding device for the production of large transformers. Background Technique

[0002] A transformer is an important electrical equipment. During its production process, it is necessary to insulate the transformer, and the insulation treatment of the transformer is mainly achieved by winding an insulating film outside the coil. At present, the operation of winding the insulating film of the transformer is generally completed by a film winding device. For example, the utility model patent: a film winding device for a high-voltage variable-frequency phase-shifting rectifier transformer (publication number: CN219349985U) discloses a film winding device that can complete the film winding operation of the transformer. However, when this film winding device winds the insulating film, it requires the width of the insulating film to match the height of the transformer, and the height of the large transformer is much greater than the width of the insulating film. Therefore, it is not very suitable for the film winding operation of large transformers.

[0003] In view of the above problems, the utility model is improved. Content of the Utility Model

[0004] The utility model provides a film winding device for the production of large transformers, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows:

[0006] A film winding device for the production of large transformers includes a base. A film winding mechanism is arranged on the base. The film winding mechanism includes a support ring, a winding ring and a feeding roll. A support frame is arranged on the base. The support ring is longitudinally slidably arranged on the support frame and is in transmission connection with a first motor arranged on the support frame. The winding ring is rotatably arranged on the support ring and is in transmission connection with a second motor arranged on the support ring. The feeding roll is rotatably arranged on the winding ring.

[0007] Preferably, a vertical first linear slide rail is arranged on the support frame. The support ring is fixedly connected to the sliding seat of the first linear slide rail. A first transmission lead screw is rotatably arranged on the support ring and is in threaded connection with the support ring and is in transmission connection with the first motor.

[0008] Preferably, a plurality of support wheels are arranged on the support ring in a circumferential array along the center of the winding ring. An annular groove matching the support wheels is formed on the lower surface of the winding ring. The winding ring is placed on the support ring so that the support wheels are placed in the annular groove. A transmission tooth is formed on the outer circumferential surface of the winding ring. A transmission gear is rotatably arranged on the support frame and is in transmission connection with the second motor and meshes with the transmission tooth.

[0009] Preferably, a guide roller is rotatably arranged on the winding ring on one side of the feeding roll.

[0010] Preferably, a first rotating shaft and a second rotating shaft are fixedly connected to the film winding ring. The unwinding reel is sleeved on the first rotating shaft. A brake disc, a brake spring and a first fastening sleeve are sequentially arranged below the unwinding reel on the first rotating shaft. The first fastening sleeve is screwed onto the first rotating shaft so that the brake disc tightly abuts against the unwinding reel under the action of the brake spring. The guiding roller is sleeved on the second rotating shaft, and a second fastening sleeve abutting against the guiding roller is screwed onto the second rotating shaft.

[0011] Preferably, a plurality of unwinding reels and guiding rollers are respectively arranged in a circular array along the center of the film winding ring.

[0012] Preferably, a limiting plate abutting against the upper surface of the film winding ring is connected to the support ring.

[0013] Preferably, a horizontal second linear slide rail is arranged on the base. A sliding plate is fixedly connected to the sliding seat of the second linear slide rail. A second transmission lead screw screwed onto the sliding plate and drivingly connected to a third motor arranged on the base is rotatably arranged on the base. The support frame is arranged on the sliding plate. The support ring is provided with an opening facing the reverse direction of the sliding of the sliding plate. The film winding ring is composed of a first half ring and a second half ring spliced by a connecting plate. Two ends of the connecting plate are respectively fixedly connected to the first half ring and the second half ring by bolts.

[0014] Preferably, a positioning rod is formed on the cross section of the first half ring, and a positioning hole matching the positioning rod is formed on the cross section of the second half ring. When the first half ring and the second half ring are spliced, the positioning rod is inserted into the positioning hole.

[0015] In summary, the beneficial effects of the present invention are as follows: The insulating film is wound and collected on the unwinding reel. When performing the film winding operation, the film winding ring is surrounded around the circumference of the transformer. While driving the film winding ring to drive the unwinding reel to rotate around the transformer by the second motor, the support ring is driven by the first motor to drive the film winding ring and the unwinding reel to move longitudinally, so that the insulating film is wound around the transformer from bottom to top, which can better be applicable to the film winding operation of larger-sized transformers and has better practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a structural schematic diagram of the present invention;

[0018] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0019] Figure 3 It is an exploded schematic diagram of the film winding mechanism in the utility model;

[0020] Figure 4 It is an exploded schematic diagram of another perspective of the film winding mechanism in the utility model;

[0021] Figure 5 It is an exploded schematic diagram of the film winding ring in the utility model.

[0022] In the figure: 1. base; 2. film winding mechanism; 21. support ring; 211. support wheel; 212. transmission gear; 213. limit plate; 214. opening; 22. film winding circle; 221. annular wheel groove; 222. transmission tooth; 223. first half circle; 224. second half circle; 225. connecting plate; 226. positioning rod; 227. positioning hole; 23. unwinding reel; 24. second motor; 25. guide roller; 26. first rotating shaft; 261. brake disc; 262. brake spring; 263. first fastening sleeve; 27. second rotating shaft; 271. second fastening sleeve; 3. support frame; 31. first linear slide rail; 32. first motor; 33. first transmission screw rod; 4. sliding plate; 41. second linear slide rail; 42. third motor; 43. second transmission screw rod. DETAILED DESCRIPTION

[0023] The following will be combined with the attached embodiment of the utility model Figures 1-5 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As shown in the figure, a film winding device for large transformer production includes a base 1, on which a film winding mechanism 2 is arranged, and the film winding mechanism 2 includes a support ring 21, a film winding ring 22 and a discharge roll 23. A support frame 3 is arranged on the base 1, and the support ring 21 can be longitudinally slidably arranged on the support frame 3 and is transmission-connected with a first motor 32 arranged on the support frame 3. The film winding ring 22 is rotationally arranged on the support ring 21 and is transmission-connected with a second motor 24 arranged on the support ring 21, and the discharge roll 23 is rotationally arranged on the film winding ring 22.

[0025] Specifically, the structure in which the support ring 21 is slidably arranged on the support frame 3 and is in transmission connection with the first motor 32: A vertical first linear slide rail 31 is arranged on the support frame 3. The support ring 21 is fixedly connected to the sliding seat of the first linear slide rail 31. A first transmission lead screw 33 that is screwed to the support ring 21 and is in transmission connection with the first motor 32 is rotatably arranged on the support ring 21. Through the above structure, the first motor 32 drives the first transmission lead screw 33 to rotate, and the first transmission lead screw 33 drives the support ring 21 to longitudinally slide on the first linear slide rail 31 through the screwing fit with the support ring 21.

[0026] Specifically, the structure in which the film winding ring 22 is rotatably arranged on the support ring 21 and is in transmission connection with the second motor 24: A plurality of support wheels 211 arranged in a circumferential array along the center of the film winding ring 22 are arranged on the support ring 21. An annular wheel groove 221 matching the support wheels 211 is formed on the lower surface of the film winding ring 22. The film winding ring 22 is placed on the support ring 21 so that the support wheels 211 are placed in the annular wheel groove 221. A transmission tooth 222 is formed on the outer circumferential surface of the film winding ring 22. A transmission gear 212 that is in transmission connection with the second motor 24 and meshes with the transmission tooth 222 is rotatably arranged on the support frame 3. Through the above structure, the second motor 24 drives the transmission gear 212 to rotate, and the transmission gear 212 drives the film winding ring 22 to rotate on the support ring 21 through the meshing with the transmission tooth 222. During the rotation of the film winding ring 22, the support wheels 211 keep rotating in the annular wheel groove 221, ensuring the stability and smoothness of the rotation of the film winding ring 22.

[0027] Specifically, a guide roller 25 is rotatably arranged on the film winding ring 22 on one side of the unwinding reel 23.

[0028] Specifically, the structure in which the unwinding reel 23 and the guide roller 25 are rotatably arranged on the film winding ring 22: A first rotating shaft 26 and a second rotating shaft 27 are fixedly connected to the film winding ring 22. The unwinding reel 23 is sleeved on the first rotating shaft 26. A brake disc 261, a brake spring 262, and a first fastening sleeve 263 are sequentially arranged below the unwinding reel 23 on the first rotating shaft 26. The first fastening sleeve 263 is screwed to the first rotating shaft 26 so that the brake disc 261 tightly abuts against the unwinding reel 23 under the action of the brake spring 262, rotatably arranging the unwinding reel 23 on the first rotating shaft 26. The guide roller 25 is sleeved on the second rotating shaft 27. A second fastening sleeve 271 that abuts against the guide roller 25 is screwed on the second rotating shaft 27, rotatably arranging the guide wheel on the second rotating shaft 27.

[0029] In the above embodiments, the insulating film is wound and collected on the unwinding reel 23. The transformer to be wound with the film is passed through the center of the winding ring 22 and placed on the operating table or the ground. The winding ring 22 surrounds the transformer. Before the winding operation starts, the insulating film is led out from the unwinding reel 23, bypasses the guiding roller 25 and is fixed to the transformer. Then, the second motor 24 drives the winding ring 22 to rotate around the transformer, so that the insulating film on the unwinding reel 23 is continuously led out and wound on the transformer. At the same time, the first motor 32 drives the support ring 21 to drive the rotating winding ring 22 to move upward, so that the insulating film is wound on the transformer from bottom to top as the winding ring 22 moves longitudinally, completing the winding operation of the entire transformer. During the process of the insulating film being led out from the unwinding reel 23, the brake disc 261 and the brake spring 262 cooperate to keep the insulating film always tightened, ensuring the accuracy of the insulating film after it is wound on the transformer. The guiding roller 25 plays a role of transition and guiding for the insulating film, also ensuring that the insulating film is tightened when it is wound on the transformer. It can be seen that this winding device for large transformers keeps the transformer stationary during the winding operation of the transformer, and is more suitable for larger transformers through the longitudinal movement during winding, having better practicability.

[0030] Preferably, a plurality of the unwinding reels 23 and the guiding rollers 25 are respectively arranged in a circular array along the center of the winding ring 22. The cooperation of the multiple unwinding reels 23 and the guiding rollers 25 can simultaneously perform multi-layer winding operations on the transformer, thus better meeting the production requirements.

[0031] Preferably, a limiting plate 213 is connected to the support ring 21 and abuts against the upper surface of the winding ring 22. The limiting plate 213 plays a limiting role on the winding ring 22, enabling the winding ring 22 to be more stably held on the support ring 21, and enabling the support wheel 211 to be more stably held in the annular wheel groove 221, thereby ensuring the stability of the winding ring 22 during the rotation for winding operation.

[0032] Furthermore, a horizontal second linear slide rail 41 is provided on the base 1. A sliding plate 4 is fixedly connected to the sliding seat of the second linear slide rail 41. A second transmission screw rod 43 is rotatably provided on the base 1 and is screwed to the sliding plate 4 and is in transmission connection with a third motor 42 provided on the base 1. The support frame 3 is provided on the sliding plate 4. The support ring 21 is provided with an opening 214 facing the reverse direction of the sliding of the sliding plate 4. The winding ring 22 is composed of a first half ring 223 and a second half ring 224 spliced by a connecting plate 225. Both ends of the connecting plate 225 are respectively fixedly connected to the first half ring 223 and the second half ring 224 by bolts.

[0033] In the above preferred embodiment, since the large transformer has a large mass and is not easy to move, when passing the transformer through the center of the film winding ring 22 to wind the film winding ring 22 around the circumference of the transformer for film winding operation, the limiting plate 213 and the unwinding reel 23 are removed, and the film winding ring 22 is taken off from the support ring 21. Then, the third motor 42 drives the second transmission lead screw 43 to rotate. The second transmission lead screw 43 drives the sliding plate 4 to slide on the second linear slide rail 41 through the screw connection with the sliding plate 4. Further, the support ring 21 is driven by the support frame 3 to move towards the transformer placed on the operation table or the ground, so that the transformer enters the support ring 21 through the opening 214. Then, the connecting plate 225 is removed, and the film winding ring 22 is split into a first half ring 223 and a second half ring 224. The first half ring 223 and the second half ring 224 are respectively placed on the support ring 21, and the support wheels 211 are placed in the annular wheel grooves 221. Then, the connecting plate 225 is installed to splice the first half ring 223 and the second half ring 224 to form the film winding ring 22, and the film winding ring 22 is wound around the circumference of the transformer. Then, after installing the limiting plate 213 and the unwinding reel 23, the film winding operation of the transformer can be carried out. By the above method, compared with moving the large transformer, disassembling and assembling the film winding ring 22 is more convenient to operate, thus facilitating the film winding operation of the large transformer, saving manpower and improving production efficiency.

[0034] Preferably, a positioning rod 226 is formed on the cross section of the first half ring 223, and a positioning hole 227 matching the positioning rod 226 is formed on the cross section of the second half ring 224. When the first half ring 223 and the second half ring 224 are assembled, the positioning rod 226 is inserted into the positioning hole 227. Through the cooperation of the positioning rod 226 and the positioning hole 227, the first half ring 223 and the second half ring 224 have better stability and accuracy after being assembled.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A film winding device for the production of large transformers, including a base (1), characterized in that: A film winding mechanism (2) is provided on the base (1). The film winding mechanism (2) includes a support ring (21), a film winding ring (22), and a material feeding roll (23). A support frame (3) is provided on the base (1). The support ring (21) is slidably arranged longitudinally on the support frame (3) and is in driving connection with a first motor (32) arranged on the support frame (3). The film winding ring (22) is rotatably arranged on the support ring (21) and is in driving connection with a second motor (24) arranged on the support ring (21). The material feeding roll (23) is rotatably arranged on the film winding ring (22).

2. The film winding device for the production of large transformers according to claim 1, characterized in that: A vertical first linear slide rail (31) is provided on the support frame (3). The support ring (21) is fixedly connected to the sliding seat of the first linear slide rail (31). A first transmission lead screw (33) that is screwed onto the support ring (21) and is in driving connection with the first motor (32) is rotatably arranged on the support ring (21).

3. The film winding device for the production of large transformers according to claim 2, characterized in that: A number of support wheels (211) are arranged on the support ring (21) in a circular array along the center of the film winding ring (22). An annular wheel groove (221) matching the support wheels (211) is formed on the lower surface of the film winding ring (22). The film winding ring (22) is placed on the support ring (21) such that the support wheels (211) are placed in the annular wheel groove (221). A transmission tooth (222) is formed on the outer circumferential surface of the film winding ring (22). A transmission gear (212) that is in driving connection with the second motor (24) and meshes with the transmission tooth (222) is rotatably arranged on the support frame (3).

4. The film winding device for the production of large transformers according to claim 3, characterized in that: A guide roller (25) is rotatably arranged on the film winding ring (22) on one side of the material feeding roll (23).

5. The film winding device for the production of large transformers according to claim 4, characterized in that: A first rotating shaft (26) and a second rotating shaft (27) are fixedly connected to the film winding ring (22). The material feeding roll (23) is threaded through the first rotating shaft (26). A brake disc (261), a brake spring (262), and a first fastening sleeve (263) are sequentially arranged below the material feeding roll (23) on the first rotating shaft (26). The first fastening sleeve (263) is screwed onto the first rotating shaft (26) such that the brake disc (261) tightly abuts against the material feeding roll (23) under the action of the brake spring (262). The guide roller (25) is threaded through the second rotating shaft (27). A second fastening sleeve (271) that abuts against the guide roller (25) is screwed onto the second rotating shaft (27).

6. The winding film device for the production of large transformers according to claim 5, characterized in that: A number of the material feeding rolls (23) and guide rollers (25) are respectively arranged in a circular array along the center of the film winding ring (22).

7. The film winding device for the production of large transformers according to claim 6, characterized in that: A limiting plate (213) that abuts against the upper surface of the film winding ring (22) is connected to the support ring (21).

8. The film winding device for the production of large transformers according to claim 7, characterized in that: A horizontal second linear slide rail (41) is provided on the base (1). A slide plate (4) is fixedly connected to the sliding seat of the second linear slide rail (41). A second transmission lead screw (43) that is screwed to the slide plate (4) and is in transmission connection with a third motor (42) provided on the base (1) is rotatably provided on the base (1). The support frame (3) is provided on the slide plate (4). The support ring (21) is provided with an opening (214) facing the reverse direction of the sliding of the slide plate (4). The film winding ring (22) is composed of a first half circle (223) and a second half circle (224) spliced by a connecting plate (225). Both ends of the connecting plate (225) are fixedly connected to the first half circle (223) and the second half circle (224) respectively by bolts.

9. The film winding device for the production of large transformers according to claim 8, characterized in that: A positioning rod (226) is formed on the cross section of the first half circle (223). A positioning hole (227) matching the positioning rod (226) is provided on the cross section of the second half circle (224). When the first half circle (223) and the second half circle (224) are assembled, the positioning rod (226) is inserted into the positioning hole (227).

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