Flexible pressing device for transformer winding
By designing a flexible compression device for transformer winding with multiple structures, the gap problem exists in the winding process is solved, gap-free winding is achieved, material saving, short-circuit resistance is improved, and noise is reduced.
Patent Information
- Application Number
- CN202421874825.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-08-05
AI Technical Summary
During the production process, the transformer winding has problems such as loose axial and amplitude direction and untightening winding, which leads to the gap occupying the height of the core window, reducing the ability to resist short circuits, and there are unsatisfactory control and safety hazards of manual swaying and knocking.
A flexible compression device for windings of transformers is designed, including a support frame, extrusion plate, hydraulic rod, drive column, winding die, vertical compression wheel, transverse compression wheel, auxiliary ring, rotating cylinder, adjustment screw and driving gear, and eliminate the gap between winding turns through multiple structures.
It realizes gapless winding during winding, saves electromagnetic wire material, reduces load loss, improves the high core window and space utilization, enhances the anti-burst short circuit capability, makes the transformer structure compact and reduces noise.
Smart Images
Figure CN222896602U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer winding wire winding, in particular to a transformer winding flexible pressing device. Background Art
[0002] At present, during the production process of transformer windings, the windings are loose and not tightly wound in both the axial and radial directions. At present, various winding machines used for distribution transformers in the industry have certain gaps between the electromagnetic wires of the windings in the axial direction. These gaps occupy a certain core window height and reduce the transformer's ability to resist short circuits. Secondly, due to the centrifugal force of rotation, the electromagnetic wires of the windings will also have certain gaps in the radial direction, especially the part where the arc surface transitions to the straight surface. In the actual production process, the circular winding gap is the smallest, followed by the elliptical winding gap, the oblong winding gap is larger, and the rectangular winding gap is the largest. In the production and winding process, in order to limit the range of tolerance, it is generally done by manually knocking the excess part while winding, but the control of dimensional tolerance is not ideal, and it is time-consuming, labor-intensive, and there are safety hazards such as the insulation of the wire turns being knocked out. Utility Model Content
[0003] The purpose of the utility model is to provide a transformer winding flexible pressing device to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer winding flexible clamping device comprises a support frame, the middle of the support frame is slidably connected with two extrusion plates, a hydraulic rod is fixedly connected between the support frame and the extrusion plate, a driving column is provided between the two extrusion plates, a winding die is slidably connected on the driving column, and the driving column can drive the winding die to rotate, two vertical clamping wheels are provided between the extrusion plate and the winding die, the side ends of the vertical clamping wheels are provided with transverse clamping wheels, the transverse clamping wheels and the extrusion plates are rotatably connected, an auxiliary ring is sleeved on the winding die, the support frame is a T-shaped structure, the middle of the auxiliary ring is rotatably connected with a rotating cylinder, the side ends of the winding die are provided with an adjusting screw, a clamping ring is clamped on the winding die, the top end of the adjusting screw is fixedly connected to the clamping ring by a buckle or a screw, and the middle of the auxiliary ring is rotatably connected with a driving gear.
[0005] Preferably, a plurality of driving teeth are fixedly connected to the outer side wall of the rotating cylinder, the distance between two adjacent driving teeth is the same, and the adjusting screw is threadedly connected to the middle of the rotating cylinder.
[0006] Preferably, the side end of the extrusion plate is rotatably connected to an auxiliary plate, the auxiliary plate is a herringbone structure, two vertical clamping wheels are located at two top ends of the lower side of the auxiliary plate, and a return spring is provided between the extrusion plate and the auxiliary plate.
[0007] Preferably, the lower end side wall of the transverse clamping wheel abuts against the wire turn.
[0008] Preferably, a clamping groove is provided on the side wall of the winding die, and the clamping ring is clamped in the clamping groove, and the clamping ring can rotate in the clamping groove.
[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: when winding, the vertical clamping wheel presses the wire turns and wraps them around the winding mold, the clamping ring limits the starting position of the wire turns, and when winding, the transverse clamping wheel presses the wire turns laterally to ensure that there is no gap between the winding turns when winding, and at the same time, when winding the wire turns on the winding mold, the adjusting screw can control the lateral movement distance of the winding mold, thereby limiting the position of the spare winding, thereby avoiding gaps in the turns that have been wound, and eliminating the gaps between the winding turns through multiple structures; saving transformer winding electromagnetic wire materials, reducing load losses, improving the core window height and the geometric space utilization rate between phases, saving transformer core materials, and reducing no-load losses; enhancing the transformer's ability to resist sudden short circuits; making the transformer structure compact and reducing load noise; the flexible clamping transposition configuration is flexible, and the existing winding machine models can basically be equipped with the flexible clamping device. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the winding connection of the winding die.
[0011] Figure 2 It is a three-dimensional schematic diagram of the transformer winding.
[0012] Figure 3 This is a schematic diagram of the connection between the auxiliary ring and the winding die.
[0013] Figure 4 This is a schematic diagram of the connection between the auxiliary ring and the rotating cylinder.
[0014] In the figure: 1 support frame, 2 extrusion plate, 3 vertical clamping wheel, 4 horizontal clamping wheel, 5 driving column, 6 winding die, 7 auxiliary ring, 8 auxiliary plate, 9 clamping ring, 10 adjusting screw, 11 driving gear, 12 rotating cylinder, 13 fixing plate, 14 driving gear. DETAILED DESCRIPTION
[0015] In order to deepen the understanding and recognition of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described and introduced in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments, and are not intended to limit the embodiments in any form. 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.
[0016] See also Figure 1-4 The utility model provides a technical solution: a transformer winding flexible clamping device, including a support frame 1, characterized in that: two extrusion plates 2 are slidably connected in the middle of the support frame 1, a hydraulic rod is fixedly connected between the support frame 1 and the extrusion plate 2, a driving column 5 is provided between the two extrusion plates 2, a winding die 6 is slidably connected on the driving column 5, and the driving column 5 can drive the winding die 6 to rotate, two vertical clamping wheels 3 are provided between the extrusion plate 2 and the winding die 6, and a lateral clamping wheel 4 is provided at the side end of the vertical clamping wheel 3, and the lateral clamping wheel 4 It is rotatably connected to the extrusion plate 2, an auxiliary ring 7 is sleeved on the winding die 6, the support frame 1 is a T-shaped structure, the middle of the auxiliary ring 7 is rotatably connected to the rotating cylinder 12, the side end of the winding die 6 is provided with an adjusting screw 10, a clamping ring 9 is clamped on the winding die 6, the top of the adjusting screw 10 is fixedly connected to the clamping ring 9 by a buckle or a screw, the middle of the auxiliary ring 7 is rotatably connected to the driving gear 11, the side end of the auxiliary ring 7 is provided with a motor, the driving gear 11 is fixedly connected to the power output end of the motor, and the motor can drive the driving gear 11 to rotate.
[0017] A plurality of driving teeth 14 are fixedly connected to the outer wall of the rotating cylinder 12, and the distance between two adjacent driving teeth 14 is the same. The adjusting screw 10 is threadedly connected to the middle of the rotating cylinder 12. A slot is provided on the side wall of the winding die 6, and a clamping ring 9 is clamped in the slot. The clamping ring 9 can rotate at the slot. When the driving gear 11 rotates, the rotating cylinder 12 can be driven to rotate through meshing transmission, thereby driving the adjusting screw 10 to move. The adjusting screw 10 can push the clamping ring 9 and the winding die 6 to slide on the driving column 5, change the position of the winding die 6, and change the position between the clamping ring 9 and the vertical clamping wheel 3, so that the wire turns can be evenly wound on the winding die 6.
[0018] The side end of the extrusion plate 2 is rotatably connected to an auxiliary plate 8, and the auxiliary plate 8 is a herringbone structure. Two vertical clamping wheels 3 are located at the two top ends of the lower side of the auxiliary plate 8. A reset spring is provided between the extrusion plate 2 and the auxiliary plate 8. The lower end side wall of the transverse clamping wheel 4 rests on the wire turns. When the wire turns are wound on the winding mold 6, the vertical clamping wheel 3 vertically extrude the wire turns, and the transverse clamping wheel 4 clamps the side ends of the wire turns, thereby controlling the gap between the wound wire turns. The auxiliary plate with a herringbone structure can adapt to winding molds of different shapes, thereby winding the wire turns on winding molds of different structures, and has stronger adaptability.
[0019] Before winding, first insert the winding die 6 into the driving column 5, and then clamp the clamping ring 9 and the winding die 6. At this time, the wire turns are tightly pressed against the clamping ring 9, and then the vertical clamping wheel 3 is used to clamp the wire turns so that the wire turns are wound on the winding die 6. At the same time, the transverse clamping wheel 4 squeezes the wire turns laterally to control the gap between the wound wire turns. When the winding die 6 rotates, the driving gear 11 can drive the rotating cylinder 12 to rotate through the meshing transmission, and the adjusting screw 10 adjusts the winding die 6 and the wire turns to move together. As the winding die 6 moves turn by turn, the position of the winding coil is vacated to facilitate the subsequent winding of wire turns, and the spacing between the wound wire turns can be accurately controlled.
[0020] Although the embodiments of the utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the utility model, and does not limit the utility model in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A transformer winding flexible pressing device, comprising a support frame (1), characterized in that: Two extrusion plates (2) are slidably connected in the middle of the support frame (1), a hydraulic rod is fixedly connected between the support frame (1) and the extrusion plate (2), a driving column (5) is provided between the two extrusion plates (2), a winding die (6) is slidably connected on the driving column (5), and the driving column (5) can drive the winding die (6) to rotate, two vertical clamping wheels (3) are provided between the extrusion plate (2) and the winding die (6), and a lateral clamping wheel (4) is provided at the side end of the vertical clamping wheel (3), and the lateral clamping wheel (4) is provided at the side end of the vertical clamping wheel (3). The wheel (4) and the extrusion plate (2) are rotatably connected, the winding die (6) is sleeved with an auxiliary ring (7), the support frame (1) is a T-shaped structure, the middle of the auxiliary ring (7) is rotatably connected with a rotating cylinder (12), the side end of the winding die (6) is provided with an adjusting screw (10), the winding die (6) is clamped with a clamping ring (9), the top end of the adjusting screw (10) is fixedly connected to the clamping ring (9) by a buckle or a screw, and the middle of the auxiliary ring (7) is rotatably connected with a driving gear (11).
2. A transformer winding flexible pressing device according to claim 1, characterized in that: A plurality of driving teeth (14) are fixedly connected to the outer wall of the rotating cylinder (12), and the distance between two adjacent driving teeth (14) is the same. The adjusting screw (10) is threadedly connected to the middle of the rotating cylinder (12).
3. The transformer winding flexible pressing device according to claim 1, characterized in that: The side end of the extrusion plate (2) is rotatably connected to an auxiliary plate (8), the auxiliary plate (8) is a herringbone structure, two vertical clamping wheels (3) are located at two top ends of the lower side of the auxiliary plate (8), and a return spring is provided between the extrusion plate (2) and the auxiliary plate (8).
4. The transformer winding flexible pressing device according to claim 1, characterized in that: The side wall of the lower end of the transverse clamping wheel (4) abuts against the wire turn.
5. The transformer winding flexible pressing device according to claim 1, characterized in that: A clamping groove is provided on the side wall of the winding die (6), and a clamping ring (9) is clamped in the clamping groove. The clamping ring (9) can rotate in the clamping groove.