Wire erecting device of dry-type transformer high-voltage coil vertically-wound wire

Abstract

The invention discloses a wire erecting device for a dry-type transformer high-voltage coil vertically-wound wire, and belongs to the field of coil winding, the wire erecting device for the dry-type transformer high-voltage coil vertically-wound wire comprises a device main body and two wire clamping devices arranged on the device main body, and the two wire clamping devices are respectively used for clamping the thickness direction and the width direction of a flat wire; the wire clamping device comprises a sliding rod arranged on the device body, one end of the sliding rod is provided with a fixed pulley yoke, the other end of the sliding rod is provided with a movable pulley yoke capable of sliding along the sliding rod, each pulley yoke is provided with a set of pulleys used for clamping wires, and the two sets of pulleys form a wire clamping channel with the adjustable distance. After the specification of a wire is known, the movable pulley yoke is adjusted relative to the fixed pulley yoke according to the thickness of the clamped wire to achieve the effect of adjusting the width of the wire clamping channel, the effect that the width of the wire clamping channel can be automatically adjusted according to the thickness of the wire is achieved, and the wire erecting device can be suitable for wires of various wire gauges; and the universality of the wire erecting device is improved.

Description

Technical Field

[0001] The invention belongs to the field of coil winding, and in particular relates to a vertical winding device for a dry-type transformer high-voltage coil vertical winding conductor. Background Art

[0002] There are two types of wire winding methods for large-capacity dry-type transformers: flat winding and vertical winding. Flat winding refers to the method in which the wide surface of the wire contacts the wire winding device for winding; vertical winding refers to the method in which the narrow surface of the wire contacts the wire winding device for winding. Vertical winding can reduce the coil height and thus reduce the overall cost of the transformer. However, vertical winding requires the use of tooling to erect the wire and then wind it onto the mold according to the shape of the mold, and it must be ensured that the wire cannot be tilted to affect the coil height.

[0003] The specifications of the clamping part of the existing dry-type transformer high-voltage coil vertical winding conductor take-up device are fixed, resulting in a take-up device that can only take up one specification of conductor and cannot be used for multiple conductor specifications. The main body of the existing take-up device is made of epoxy glass fiber, which is easily damaged during use and needs to be replaced frequently, resulting in increased costs and affecting production efficiency; at the same time, the roller that contacts the device and the conductor uses two steel bearings, and the joints are easily damaged by the conductor insulation, which has a certain impact on the coil quality.

[0004] In summary, the existing vertical winding wire erecting device has the defect of not being applicable to wires of various specifications, resulting in poor versatility of the wire taking-up device. Summary of the invention

[0005] The object of the present invention is to provide a wire erecting device for winding a conductor of a dry-type high-voltage coil, so as to solve the technical problem that the wire erecting device in the prior art cannot be used for conductors of various specifications.

[0006] In order to achieve the above-mentioned purpose, the technical solution of a vertical wire device for vertically winding a high-voltage coil of a dry transformer provided by the present invention is:

[0007] A wire erecting device for vertically winding conductors of a dry-type transformer high-voltage coil comprises a device body and two wire clamping devices arranged on the device body with clamping directions perpendicular to each other, the two wire clamping devices are respectively used to clamp the flat wire from the thickness direction and the width direction of the flat wire; the wire clamping device comprises two groups of pulley frames with adjustable relative positions along the clamping direction, each of the pulley frames is provided with a group of wire clamping pulleys for clamping the wire, and the two groups of wire clamping pulleys constitute a wire clamping channel with adjustable spacing.

[0008] The beneficial effect is that the two wire clamping devices can ensure that the length direction of the wire is also limited to a certain extent, so that the length direction of the wire is as vertical as possible, which is convenient for vertical winding of the wire. The two sets of clamping pulleys of the two sets of pulley frames form a wire clamping channel. After the wire specifications are known, according to the thickness of the clamped wire, the relative positions of the two sets of pulley frames are adjusted to achieve the effect of adjusting the width of the wire clamping channel, ensuring that the surface of the wire passing through the vertical winding device is relatively flat, which is convenient for the subsequent vertical winding of the wire.

[0009] As a further improvement, the pulley frame includes a fixed pulley frame fixedly arranged on the device body and a movable pulley frame, and the movable pulley frame is vertically arranged on a cantilever on the device body parallel to the clamped wire through an adjusting bolt.

[0010] The beneficial effect is: the wire clamping channel formed by two sets of wire clamping pulleys is adjusted by a fixed pulley frame and a movable pulley frame, and the position of the channel wall formed by the fixed pulley frame is fixed, so it is more convenient for the two clamping devices to adjust the channel spacing together, and the fixed pulley frame is more convenient to set up, reducing the difficulty of assembling the clamping device.

[0011] As a further improvement, a locking nut for locking the current axial position of the adjusting bolt is screwed between the adjusting bolt and the cantilever.

[0012] The beneficial effect is that the locking nut ensures that the clamping channel of the clamping device can be stably maintained, thereby ensuring the wire clamping force of the wire clamping device.

[0013] As a further improvement, a slide bar for guiding the movable pulley frame is also included.

[0014] The beneficial effect is that the slide bar plays a guiding role when the movable pulley frame moves, so that the movable pulley frame is easy to move.

[0015] As a further improvement, guiding devices are provided at both ends of the device body, respectively used to clamp the flat wire for guiding in the thickness direction and the width direction.

[0016] As a further improvement, the device further includes a guide device arranged at one end of the device body, the guide device includes a fixed shaft and an eccentric shaft, the fixed shaft and the eccentric shaft are both provided with guide pulleys for clamping the wire, the guide pulleys are both fixed on the same side of the device body, there is an eccentricity between the axis of the eccentric shaft and the wheel center of the pulley on the eccentric shaft, the guide pulley on the eccentric shaft rotates around the eccentric shaft with the eccentricity as the rotation radius to approach the guide pulley on the fixed shaft, and a wire clamping channel with an adjustable spacing is formed between the two guide pulleys.

[0017] The beneficial effect is that after the wire enters the wire clamping channel, the guide pulley on the eccentric shaft will automatically adjust the position of the pulley relative to the guide pulley on the fixed shaft according to the thickness of the clamped wire, that is, the wire can stretch the distance between the pulleys of the fixed shaft and the eccentric shaft. During the stretching process, the pulley connected to the eccentric shaft can slide outward relative to the pulley connected to the fixed shaft, and the wire clamping distance between the two pulleys is stretched, so that the width of the wire clamping channel can be automatically adjusted according to the thickness of the wire, so that the wire erecting device can be applied to wires of various wire gauges, and the versatility of the wire erecting device is improved. The guide device mainly plays a guiding role, and can also play an auxiliary role in clamping the wire.

[0018] As a further improvement, the guide device adjacent to the clamping device that clamps from the width direction clamps from the thickness direction; and the guide device adjacent to the clamping device that clamps from the thickness direction clamps from the width direction.

[0019] The beneficial effect is: when the guide device clamps the width of the wire, the adjacent wire clamping device clamps the thickness of the wire. When the clamping device clamps the thickness of the wire, there is no restriction on the width direction of the wire, and the wire can easily slide out from the width direction. At this time, if the adjacent guide device clamps the width of the wire, it can limit the wire from sliding out from the width direction, ensuring that the wire is stably clamped in the clamping channel.

[0020] As a further improvement, fixing members for fixing the position of the device body are respectively arranged on both sides of the device body, and the fixing members are lifting rings.

[0021] The beneficial effect is that the fixing part fixes the position of the device body, ensuring that the vertical line device does not move with the wire during the wire winding process. The lifting ring is a commonly used fixing device in the process of making a transformer. Using the lifting ring as a fixing part facilitates the purchase or production of materials for making the vertical line device and reduces the cost of making the vertical line device.

[0022] As a further improvement, the pulley is a polyvinyl fluoride roller.

[0023] The beneficial effects are: the polyvinyl fluoride roller is wear-resistant and softer than the material of the conductor, so it will not damage the conductor, and ensures the quality of the conductor after passing through the vertical line device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the main structure of the vertical wire device of the prior art;

[0025] Figure 2 A schematic diagram of the structure of a conventional vertical wire device from the left side;

[0026] Figure 3 It is a schematic diagram of the main structure of the vertical wire device of the vertical winding conductor of the dry transformer high-voltage coil in the present invention;

[0027] Figure 4 It is a right side structural schematic diagram of a vertical wire device for vertically winding a conductor of a dry-type transformer high-voltage coil in the present invention;

[0028] Figure 5 It is a rear view structural schematic diagram of a vertical line device for vertically winding a conductor of a dry-type transformer high-voltage coil in the present invention;

[0029] Description of reference numerals:

[0030] 01. Wire; 02. Clamping channel; 03. Clamping part; 04. Fixed part; 1. Device body; 2. Moving pulley frame; 3. Fixed pulley frame; 4. Locking nut; 5 Adjusting bolt; 6. Lifting ring; 7. Fixed shaft; 8. Eccentric shaft; 9. Wire clamping pulley; 10. Guide pulley; 11. Sliding rod; 12. Cantilever. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Embodiment of the vertical wire device for vertical winding conductor of dry-type transformer high voltage coil:

[0033] The existing coil winding methods are divided into two methods: flat winding of the wire 01 and vertical winding of the wire 01. Among them, the vertical winding of the wire 01 can reduce the coil height and thus reduce the overall cost of the transformer. However, the vertical winding of the wire 01 requires the use of tooling tools to erect the wire 01 and then wind it onto the mold according to the shape of the mold, and it is necessary to ensure that the wire 01 cannot be tilted, that is, the wire 01 must be flat and vertical, and the wire 01 of the coil is flat. However, since the purchased wires 01 are all flatly wound on the bobbin, when the wire 01 is vertically wound, the wire 01 needs to be changed from wide-side bending to narrow-side bending, which makes the wire 01 easy to twist. The coil wound by the twisted wire 01 will be uneven and difficult to wind. Therefore, a device is needed to flatten the twisted wire 01 before the wire 01 is vertically wound, so as to solve the problems of winding difficulty and uneven coil in the existing vertical winding of the wire 01.

[0034] An existing wire vertical winding device is as follows Figure 1 , Figure 2As shown, the existing vertical wire device is connected and fixed to the wire pay-off frame of the winding mold through the groove on the fixing component 04 on the device body, so as to facilitate the winding of the winding device. The existing vertical wire device is provided with a clamping component 03. The clamping component 03 is generally composed of two sets of pulleys. The two sets of pulleys form a wire clamping channel 02, so that the wire 01 becomes upright after passing through the wire clamping channel 02 of the vertical winding device, and the upright wire 01 is easy to be wound vertically. However, the size of the wire clamping channel 02 is fixed. When winding wires 01 of different specifications, it is necessary to replace the corresponding vertical winding device for wire management, which affects work efficiency. In addition, Figure 2 The axial hole of the clamping wheel on the middle clamping part 03 is opened into an elliptical axial hole to meet the inconvenience of installation caused by the deviation of the wire size and give a little margin.

[0035] In order to solve the above problems, Figure 3-5 As shown, the vertical wire device of the vertical winding conductor 01 of the dry-type transformer high-voltage coil of the present application includes a device body 1 and two clamping devices arranged on the device body 1 with clamping directions perpendicular to each other, and the two clamping devices are respectively used to clamp the flat wire from the thickness direction and the width direction of the flat wire; the clamping device includes two groups of pulley frames with adjustable relative positions along the clamping direction, and the pulley frames are each provided with a group of clamping pulleys 9 for clamping the wire, and the two groups of clamping pulleys 9 constitute a clamping channel with adjustable spacing.

[0036] In order to reduce the difficulty of assembling the clamping device, the pulley frame includes a fixed pulley frame 3 fixedly arranged on the device body 1 and a movable pulley frame 2, and the movable pulley frame 2 is vertically arranged on the cantilever 12 parallel to the clamped wire on the device body 1 through an adjusting bolt 5. Because the fixed pulley frame 3 is more convenient to set up, one of the pulley frames is set to be fixed.

[0037] In order to fix the current position of the movable pulley frame 2, a locking nut 4 for locking the current axial position of the adjusting bolt 5 is also screwed between the adjusting bolt 5 and the cantilever 12. The locking nut 4 ensures that the clamping channel of the clamping device can be stably maintained and the clamping force of the clamping device is ensured.

[0038] It also includes a slide rod 11 for guiding the movable pulley frame 2, providing a guiding function for the movement of the movable pulley frame 2 in the clamping direction.

[0039] In order to ensure that the wire can quickly find the incoming and outgoing directions of the clamping channel, guide devices are provided at both ends of the device body 1, which are respectively used to clamp the flat wire in the thickness direction and the width direction for guidance.

[0040] The guide device includes a fixed shaft 7 and an eccentric shaft 8, and the fixed shaft 7 and the eccentric shaft 8 are both provided with guide pulleys 10 for clamping the wire. The guide pulleys 10 are fixed on the same side of the device body 1, and there is an eccentricity between the axis of the eccentric shaft 8 and the wheel center of the pulley on the eccentric shaft 8. The guide pulley 10 on the eccentric shaft 8 rotates around the eccentric shaft 8 with the eccentricity as the rotation radius to approach the guide pulley 10 on the fixed shaft 7, and a wire clamping channel with adjustable spacing is formed between the two guide pulleys 10. After the conductor 01 passes through the wire clamping channel, the surface of the conductor will be clamped and stand upright. Because the guide pulley 10 of the eccentric shaft 8 can be automatically adjusted according to the specifications of the guide, the wire erecting device can adapt to guides of various specifications, thereby improving the versatility of the wire erecting device.

[0041] In addition, in order to limit the wire from slipping out in the width or thickness direction and ensure that the wire is stably clamped in the clamping channel, the guide device adjacent to the clamping device that clamps in the width direction clamps in the thickness direction; the guide device adjacent to the clamping device that clamps in the thickness direction clamps in the width direction.

[0042] The above pulleys are all made of polyvinyl fluoride rollers, which are not only wear-resistant but also softer than the material of the wire 01 and will not damage the wire 01, thereby ensuring the quality of coil winding.

[0043] Both sides of the device body 1 are provided with fixing parts for fixing the position of the device body 1, and the fixing parts are hanging rings 6, and the fixing parts can also be other fixing parts. The hanging rings 6 are connected to the pay-off frame to ensure that the vertical wire device does not move with the wire 01 during the winding process. The device body 1 is made of hard aluminum, which is light in weight and high in strength, extending the service life of the device.

[0044] In the present application, the guide device passively changes the wire clamping width, and the vertical wire device actively changes the wire clamping width, thereby ensuring that the width and thickness of the conductor 01 can be uniformly clamped by different clamping structures, while ensuring that the conductor 01 will not slip out of the clamping channel during the clamping process.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical line device for vertically winding a high-voltage coil of a dry transformer, characterized in that: The invention comprises a device body and two wire clamping devices arranged on the device body with clamping directions perpendicular to each other, wherein the two wire clamping devices are respectively used to clamp the flat wire from the thickness direction and the width direction of the flat wire; the wire clamping device comprises two sets of pulley frames with adjustable relative positions along the clamping direction, each of the pulley frames is provided with a set of wire clamping pulleys for clamping the wire, and the two sets of wire clamping pulleys constitute a wire clamping channel with adjustable spacing.

2. The vertical wire device for vertical winding conductors of dry-type high-voltage coils according to claim 1 is characterized in that: The pulley frame comprises a fixed pulley frame fixedly arranged on the device body and a movable pulley frame. The movable pulley frame is vertically arranged on a cantilever parallel to the clamped wire on the device body through an adjusting bolt.

3. The vertical wire device for vertical winding conductor of dry-type high-voltage coil according to claim 2 is characterized in that: A locking nut for locking the current axial position of the adjusting bolt is also screwed between the adjusting bolt and the cantilever.

4. The vertical line device for vertical winding conductors of dry-type high-voltage coils according to claim 2 is characterized in that: Also included is a slide bar for guiding the moving pulley frame.

5. The vertical line device for vertical winding conductors of dry-type high-voltage coils according to claim 1 is characterized in that: Both ends of the device body are provided with guiding devices, which are respectively used for clamping the flat wire in the thickness direction and the width direction for guiding.

6. The vertical line device for vertical winding conductors of dry-type transformer high-voltage coils according to claim 5 is characterized in that: The guide device includes a fixed shaft and an eccentric shaft, and guide pulleys for clamping the wire are arranged on the fixed shaft and the eccentric shaft. The guide pulleys are fixed on the same side of the device body, and there is an eccentricity between the axis of the eccentric shaft and the wheel center of the pulley on the eccentric shaft. The guide pulley on the eccentric shaft rotates around the eccentric shaft with the eccentricity as the rotation radius to approach the guide pulley on the fixed shaft, and a wire clamping channel with adjustable spacing is formed between the two guide pulleys.

7. The vertical line device for vertical winding conductors of dry-type transformer high-voltage coils according to claim 5 is characterized in that: The guide device adjacent to the clamping device that clamps from the width direction clamps from the thickness direction; the guide device adjacent to the clamping device that clamps from the thickness direction clamps from the width direction.

8. The vertical line device for vertical winding conductors of dry-type transformer high-voltage coils according to claim 1 is characterized in that: Fixing members for fixing the position of the device body are respectively arranged on both sides of the device body, and the fixing members are hanging rings.

9. The vertical wire device for vertical winding conductors of dry-type transformer high-voltage coils according to claim 1 is characterized in that: The pulley is a polyvinyl fluoride roller.

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