CN110544583A - Crepe paper interval precision winding machine and method for manufacturing conical high-voltage secondary coil - Google Patents
Crepe paper interval precision winding machine and method for manufacturing conical high-voltage secondary coil Download PDFInfo
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- CN110544583A CN110544583A CN201910801895.1A CN201910801895A CN110544583A CN 110544583 A CN110544583 A CN 110544583A CN 201910801895 A CN201910801895 A CN 201910801895A CN 110544583 A CN110544583 A CN 110544583A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/064—Winding non-flat conductive wires, e.g. rods, cables or cords
- H01F41/066—Winding non-flat conductive wires, e.g. rods, cables or cords with insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
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Abstract
the invention provides a crepe paper interval precision winding machine and method for manufacturing a conical high-voltage secondary coil, and solves the problem that the crepe paper interval uniform winding is difficult to realize in the conventional conical adhesive-free secondary coil manufacturing process in a manual mode. The winding machine comprises a mounting seat, a transmission device, a conical die, a coil winding support used for mounting a coil winding cylinder and a crepe paper support used for mounting a crepe paper plate; the mounting seat comprises a base and a bracket arranged on the base; the bracket is provided with a winding shaft; the conical die is fixed on the winding shaft; the transmission device comprises a driving mechanism, a translation mechanism and a speed reducer, the speed reducer is arranged on the base, the output end of the speed reducer is connected with the translation mechanism, and the translation mechanism is arranged on the base and positioned on one side of the conical mold; the driving mechanism drives the winding shaft to rotate and transmits power to the speed reducer, and the crepe paper support on the translation mechanism can move along the axial direction of the conical die under the action of the speed reducer; the coil winding support is positioned at the other side of the conical mold.
Description
Technical Field
the invention relates to a winding machine of a secondary coil of a high-voltage pulse transformer, in particular to a crepe paper interval precision winding machine and a method for manufacturing a conical high-voltage secondary coil, which can realize synchronous interval winding of coil winding and insulating crepe paper.
Background
the Sinus series high voltage pulse generator in a country adopts a compact structure with a high coupling transformer with an open-circuit magnetic core and a coaxial forming wire. The primary coil and the secondary coil of the transformer are embedded in the coaxial pulse forming line; the secondary coil is in a conical structure, has the characteristics of thin wire diameter and multiple turns, and is arranged between an inner magnetic core and an outer magnetic core which form a wire.
the commonly used secondary coil takes an electrical paper board as a base cylinder, and a thin-wire-diameter conducting wire is wound and fixed on the paper cylinder in a curing glue adhesion mode, wherein a curing glue layer of the adhesive coil has tiny air bubbles. In the process of charging the forming wire of the secondary coil, two ends of the secondary coil bear high voltage; at the moment, the electric field in the air gap in the glue layer is obviously enhanced, and the phenomenon of gas discharge is easy to occur, so that the coil is burnt, and the transformer cannot work normally. In the prior art, high-voltage insulation performance of a medium is improved by loading high air pressure on a formed line medium; however, the high pressure cannot improve the normal pressure form of the microbubbles in the curing gel layer, and the bubbles in the curing gel layer are still easy to have high voltage breakdown. In addition, the commonly used coil winding adopts enameled wires, the defect rate of qualified products is low, but the secondary cone-shaped coil generating MV-level voltage reaches the meter level, the number of turns is thousands of turns, the total length of the winding of the whole coil is very large, so that the defects of a few paint skins on the coil are difficult to avoid, and the local discharge caused by the defects influences the service life of the whole coil.
Chinese patent No. 201910181818.0, publication No. CN109786081A, entitled "method for manufacturing cone-shaped non-adhesive secondary coil based on crepe paper and the coil", wherein the structure of the cone-shaped non-adhesive secondary coil is shown in fig. 1, and the coil comprises a paper inner cone 02 and an interval winding layer 03 which are coaxial and tightly attached from inside to outside; interval winding layer 03 includes crepe paper 031 and coil wire 032, coil wire 032 places in crepe paper 031 upper surface along the length direction of crepe paper 031, makes the interior awl section of thick bamboo 02 of lower surface contact paper of crepe paper 031, and on crepe paper awl section of thick bamboo, two adjacent rings of crepe paper 031 partially overlap formed interval winding layer 03 together spiral winding on the paper awl section of thick bamboo. The structure can realize the non-gelatinization of coil manufacturing, air bubbles in the vicinity of winding wires are easy to discharge, and the existence of the spaced crepe paper between the adjacent winding wires avoids the partial discharge influence caused by the enamel coating defect of the enameled wire. In the manufacturing process of the coil, an enameled wire conical coil (coil winding) can be wound in a manual mode, and the wire diameter of the enameled wire can be as small as 0.3 mm. The thickness of the insulating crepe paper commonly used in the power industry is very thin, tens of micrometers, the width is large, about 20mm, and the turn distance of the crepe paper is about 1mm, and the uniform winding of the crepe paper at intervals is difficult to realize in a manual mode.
disclosure of Invention
in order to solve the technical problem that the corrugated paper is difficult to be wound at intervals uniformly in a manual mode in the existing process of manufacturing the conical non-adhesive secondary coil, the invention provides a corrugated paper interval precise winding machine and a method for manufacturing the conical high-voltage secondary coil, and the coil winding and the insulating corrugated paper can be wound at intervals synchronously.
in order to achieve the purpose, the technical scheme provided by the invention is as follows:
A crepe paper interval precision winding machine for manufacturing a conical high-voltage secondary coil is characterized in that: the winding device comprises a mounting seat, a transmission device, a conical die, a coil winding bracket for mounting a coil winding cylinder and a crepe paper bracket for mounting a crepe paper plate; the mounting seat comprises a base and supports vertically arranged at two ends of the base; a winding shaft is arranged at the upper part of the bracket; the conical die is coaxially fixed on the winding shaft and can rotate relative to the bracket;
the transmission device comprises a driving mechanism, a translation mechanism and a speed reducer;
the driving mechanism comprises a rotating handle, a driving wheel, a driven wheel and a transmission belt/toothed belt/chain for connecting the driving wheel and the driven wheel; the rotating handle and the driving wheel are coaxially arranged at one end of the winding shaft, and the driven wheel is connected with the input end of the speed reducer;
the speed reducer is arranged on the base, and the output end of the speed reducer is connected with the translation mechanism;
The translation mechanism is arranged on the base and located on one side of the conical mold, the crepe paper support is arranged on the translation mechanism, the driving mechanism transmits power to the speed reducer, and the crepe paper support on the translation mechanism can move along the axial direction of the conical mold under the action of the speed reducer;
The coil winding support is positioned on the other side of the conical die.
Further, the cone-shaped die is of a variable cone structure and is processed by the following steps:
1) setting the number of turns of a secondary coil required to be wound by the conical die to be N, wherein the radius of a small end of the secondary coil is R1, and the radius of a large end of the secondary coil is R2;
2) The starting radial radius of each turn of the winding from the small end of the secondary coil is ri, ri being calculated by the following formula:
r＝R(R/R) (1)
Wherein i is 1,2 … …, N;
the radial radius of the terminal point of the nth winding of the winding is rN +1, and rN +1 is R2;
3) and S is the center distance between adjacent turns of the winding, and is calculated by the following formula:
wherein L is the axial length of the secondary coil; j is 1,2 … … N;
4) let the axial distance between adjacent turns of radii rj and rj +1 be Δ Zj, Δ Zj is calculated by the following formula:
ΔZ＝sqrt[S-(r-r)] (3)
wherein j is 1,2 … … N;
5) setting the axial position of the initial position of each turn of the winding as Zi, and calculating the Zi by the following formula:
Z＝0，i＝1；
Z＝ΔZ，i＝2；
6) Drawing a tapered curve of the whole coil according to the position coordinates (ri, Zi) of each turn of the winding, wherein i is 1,2 … … N + 1;
7) Processing a conical mould according to the conical curve of the step 6).
Further, in the step 6), a variable cone curve of the whole coil is drawn by adopting a straight line;
The step 7) is specifically as follows: processing a plurality of sections of conical surfaces according to the straight lines in the step 6) to form a conical mold.
further, the translation mechanism comprises a linear guide rail, a lead screw connecting block, a lead screw nut and a threaded lead screw;
The linear guide rail is arranged on the base in parallel to the axis of the conical die;
the lower surface of the lead screw connecting block is provided with a linear guide groove which is clamped on the linear guide rail, and a lead screw nut is fixed on the lead screw connecting block;
One end of the threaded screw rod is connected with the output end of the speed reducer, and the other end of the threaded screw rod penetrates through the screw rod nut and then is erected on the base; the crepe paper support is fixed on the lead screw connecting block.
furthermore, the distance between adjacent turns of the crepe paper wound on the conical die on the crepe paper support can be adjusted by changing the ratio of the wheel diameter of the driving wheel to the wheel diameter of the driven wheel, the reduction ratio of the speed reducer or the pitch of the threaded lead screw.
Further, the screw nut is positioned in the middle of the screw connecting block;
The linear guide rail and the linear guide groove are arranged in parallel, and the two linear guide grooves are located on two sides of the screw nut.
further, the rotating handle is arranged close to the small end of the conical die.
furthermore, two ends of the winding shaft are arranged on the bracket through bearings; and a rotary handle is arranged on the outer side of one bearing.
the winding method based on the crepe paper spacing precision winding machine for manufacturing the conical high-voltage secondary coil is characterized by comprising the following steps of:
1) respectively installing a coil winding drum and a crepe paper plate on a coil winding bracket and a crepe paper bracket;
2) Fixing the coil winding end on the coil winding drum on the upper part of the small end of the conical die, and fixing the wrinkle paper end on the wrinkle paper disc at the same position of the conical die and the coil winding end after winding the wrinkle paper end from the lower part of the conical die;
3) Rotating the rotating handle to drive the conical mold to rotate; meanwhile, the driving wheel drives the driven wheel to rotate, and the speed reducer drives the crepe paper support on the translation mechanism to axially move along the conical die under the driving of the driven wheel;
when the conical die rotates, the coil winding is wound on the surface of the crepe paper, and the adjacent coil winding is arranged at intervals of the crepe paper and is close to the adjacent coil winding by adjusting the contact position of the coil winding and the crepe paper.
further, in the step 3), the rotating handle is rotated for one circle, and the position of the coil winding is adjusted in a manual operation mode.
Compared with the prior art, the invention has the advantages that:
1. In the winding machine, the speed reducer drives the crepe paper support on the translation mechanism to move along the axial direction of the conical die under the driving of the driving mechanism, the driving mechanism drives the conical die to rotate at the same time, so that the crepe paper on the crepe paper support is wound on the conical die, and when the crepe paper is wound, the coil winding on the coil winding support is wound on the crepe paper, so that the adjacent distances of the crepe paper on the conical die are equal, the coil winding and the crepe paper are synchronously wound at intervals, the operation is simple and convenient, and the cost is low.
2. the conical die adopts a variable cone structure, and compared with the traditional straight cone secondary coil, the wound variable cone secondary coil has small turn-to-turn voltage, improves turn-to-turn voltage resistance and turn-to-turn flashover, and further prolongs the service life of the secondary coil.
3. the conical mold can be respectively processed by adopting a plurality of sections of conical cylinders, each section of conical cylinder is of a straight conical structure, a plurality of straight cones are connected to form the conical mold, and the plurality of sections of conical cylinders are convenient to process and low in cost.
4. The invention can adopt a threaded lead screw, a lead screw nut and a lead screw connecting block to realize that the crepe paper support moves along the axial direction of the tapered die under the action of the speed reducer, has simple structure and equal axial moving distance of the crepe paper support when the rotary handle rotates for one circle.
5. When the winding machine winds the crepe paper on the conical die, the distance between adjacent turns can be adjusted by changing the wheel diameter ratio of the driving wheel and the driven wheel, the reduction ratio of the speed reducer or the thread pitch of the threaded lead screw.
6. the invention has two linear guide rails and two linear guide grooves, which can ensure the moving stability of the crepe paper support.
7. according to the winding method, power is transmitted to the speed reducer through the driving mechanism, the speed reducer drives the crepe paper support on the translation mechanism to move along the axial direction of the conical die, the driving mechanism drives the conical die to rotate, the crepe paper on the crepe paper support is wound on the conical die, when the crepe paper is wound, the coil winding on the coil winding support is wound on the crepe paper, the crepe paper is wound from the small end to the large end of the conical die before the winding, the winding is arranged at intervals of the crepe paper and adjacent windings are close to each other by adjusting the winding position, the adjacent intervals of the crepe paper on the conical die are equal, the winding and the crepe paper are synchronously wound at intervals, the operation is simple and convenient, and the cost is low.
Drawings
FIG. 1 is a schematic structural diagram of a conventional cone-shaped non-glue secondary coil;
In fig. 1, the reference numerals are as follows:
01-conical base cylinder, 02-paper inner cone cylinder, 03-interval winding layer, 031-crepe paper, 032-coil winding.
FIG. 2 is a schematic structural diagram of a crepe paper spacing precision winding machine for manufacturing a conical high-voltage secondary coil according to the invention;
FIG. 3 is a functional schematic diagram of a crepe paper spacing precision winding machine for manufacturing a conical high-voltage secondary coil according to the invention;
FIG. 4 is an assembly view of the driving wheel, the driven wheel and the transmission belt in the driving mechanism of the present invention;
in fig. 2 to 4, the reference numerals are as follows:
1-mounting seat, 11-base, 12-bracket, 13-winding shaft and 14-bearing seat; 2-driving mechanism, 21-rotating handle, 22-driving wheel, 23-driven wheel, 24-driving belt, 3-translation mechanism, 31-linear guide rail, 32-lead screw connecting block, 33-lead screw nut, 34-threaded lead screw, 5-speed reducer, 6-coil winding bracket, 61-coil winding cylinder, 7-crepe paper bracket, 71-crepe paper disc and 8-tapered die.
Detailed Description
The invention is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 2, a crepe paper spacing precision winding machine for manufacturing a tapered high-voltage secondary coil comprises a mounting base 1, a transmission device, a coil winding support 6 for mounting a coil winding drum 61, a crepe paper support 7 for mounting a crepe paper disc 71 and a tapered die 8, wherein the mounting base 1 comprises a base 11 and supports 12 vertically arranged at two sides of the base 11, and winding shafts 13 are mounted at the upper parts of the supports 12; the conical die 8 is coaxially and fixedly arranged on the winding shaft 13, and two ends of the winding shaft 13 are arranged on the bracket 12 through bearings and can rotate relative to the bracket 12; a bearing seat 14 for mounting a bearing is arranged at the top of the bracket 12, and the transmission device comprises a driving mechanism 2, a translation mechanism 3 and a speed reducer 5; the driving mechanism 2 comprises a rotating handle 21, a driving wheel 22, a driven wheel 23 and a transmission belt 24/a toothed belt/chain for connecting the driving wheel 22 and the driven wheel 23; the rotating handle 21 and the driving wheel 22 are coaxially arranged at one end of the winding shaft 13, specifically, a stepped shaft is arranged at one end of the winding shaft 13, where the rotating handle 21 is arranged, a bearing is arranged on a large shaft of the stepped shaft, and the rotating handle 21 is arranged on a small shaft at the outer side of the stepped shaft; under the action of the rotating handle 21, the winding shaft 13 drives the conical die 8 thereon to rotate relative to the bracket 12; the driven wheel 23 is connected with the input end of the speed reducer 5; the speed reducer 5 is arranged on the base 11, and the output end of the speed reducer is connected with the translation mechanism 3; the translation mechanism 3 is arranged on the base 11 and located on one side of the conical mold 8, and the crepe paper support 7 is arranged on the translation mechanism 3 and can move along the axial direction of the conical mold 8 under the action of the speed reducer 5; the coil winding support 6 is positioned at the other side of the conical mold 8, namely the coil winding support 6 and the crepe paper support 7 are respectively positioned at the two sides of the conical mold 8.
as shown in fig. 3, the rotating handle 21 drives the conical mold 8 to rotate, the driving mechanism 2 transmits power to the speed reducer 5, the speed reducer 5 drives the crepe paper support 7 on the translation mechanism 3 to move axially along the conical mold 8, when the conical mold 8 rotates, the crepe paper on the crepe paper support 7 and the coil winding of the coil winding drum on the coil winding support 6 are wound on the conical mold 8 at the same time, the driving mechanism 2, the translation mechanism 3 and the speed reducer 5 ensure that the turns of the crepe paper are uniformly spaced, and as the coil winding diameter is far larger than the crepe paper thickness, when the coil winding is wound on the conical mold 8, the position of the coil winding is adjusted, so that the coil winding is spaced and the crepe paper is close to the previous coil winding. The coil winding requires even force application during winding, the coil winding tightness is guaranteed to be uniform, and no matter manual operation (manual pulling) or mechanical pretightening force is added, the surface insulation is guaranteed not to be damaged during winding of the coil winding on the conical die 8. The winding starting position, in which the crepe paper is wound on the conical die 8 a distance before the coil winding, is located above the winding contact position of the coil winding on the conical die 8 and below the winding contact position of the crepe paper on the conical die 8, respectively, for the convenience of operation.
the translation mechanism 3 comprises a linear guide rail 31, a lead screw connecting block 32, a lead screw nut 33 and a threaded lead screw 34; the linear guide rail 31 is arranged on the base 11 in parallel with the axis of the conical mould 8; the lower surface of the lead screw connecting block 32 is provided with a linear guide groove which is clamped on the linear guide rail 31, and a lead screw nut 33 is fixed on the lead screw connecting block 32; one end of the threaded screw 34 is connected with the output end of the speed reducer 5, and the other end of the threaded screw passes through the screw nut 33 and then is erected on the base 11; the crepe paper support 7 is fixed on the lead screw connecting block 32. The speed reducer 5 drives the threaded screw rod 34 to rotate, the screw rod connecting block 32 is driven to move on the linear guide rail 31, and then the crepe paper support 7 on the screw rod connecting block 32 is driven to move axially along the conical die 8, so that the crepe paper is wound uniformly at intervals; preferably, the lead screw connecting block 32 is a rectangular plate; the screw nut 33 is positioned in the middle of the screw connecting block 32; the two linear guide rails 31 and the two linear guide grooves are arranged in parallel, the two linear guide grooves are located on two sides of the screw nut 33, and preferably, the two linear guide grooves are symmetrically arranged relative to the screw nut 33, so that the guidance performance is good, and the movement stability of the crepe paper support 7 is good.
if the distance between adjacent turns of the crepe paper wound on the conical die 8 is d, d is calculated by the following formula: d is sxa × b; wherein, a is the ratio of the wheel diameters of the driving wheel 22 and the driven wheel 23, b is the reduction ratio of the speed reducer 5, and s is the pitch of the threaded lead screw 34, the distance between adjacent turns of the crepe paper wound on the conical die 8 can be adjusted by changing the ratio of the wheel diameters of the driving wheel 22 and the driven wheel 23, the reduction ratio of the speed reducer 5 or the pitch of the threaded lead screw 34.
in order to realize the rotation of the conical mold 8, the rotating handle 21 can be arranged at the large end or the small end, and the specific selection is that the sight of the operator is not blocked, and the mutual matching is easier; for ease of viewing, it is preferred that the rotating handle 21 is located near the small end of the conical die 8. The coil winding can be wound from the small end to the big end, and the coil winding can slide to the small end if the coil winding is wound from the big end.
in the driving mechanism 2 of the present embodiment, a combination of the driving wheel 22, the driven wheel 23 and the transmission belt 24 may be adopted, as shown in fig. 4, or a combination of a gear and a chain may be adopted.
taper mould 8 has the awl structure of becoming in this embodiment coiling machine, adopts the awl structure of becoming, and the awl coil of coiling compares turn-to-turn voltage little with traditional straight cone coil, has improved turn-to-turn withstand voltage and turn-to-turn flashover, and then has improved the working life of coil, forms through the processing of following step:
1) Assuming the number of turns N of the secondary coil, the radius of the small end of the secondary coil is R1, and the radius of the large end of the secondary coil is R2;
2) the starting radial radius of each turn of the winding from the small end of the secondary coil is ri, ri being calculated by the following formula:
r＝R(R/R) (1)
Wherein i is 1, 2., N +1,
The radial radius of the terminal point of the nth winding of the winding is rN +1, and rN +1 is R2;
3) and S is the center distance between adjacent turns of the winding, and is calculated by the following formula:
Wherein L is the axial length of the secondary coil; j is 1,2 … … N;
generally, the length L of the custom coil is known, and the center distance S between adjacent turns of the winding can be obtained through numerical iteration solution;
4) let the axial distance between adjacent turns of radii rj and rj +1 be Δ Zj, Δ Zj is calculated by the following formula:
ΔZ＝sqrt[S-(r-r)] (3)
Wherein j is 1,2 … … N;
5) setting the axial position of the initial position of each turn of the winding as Zi, and calculating the Zi by the following formula:
Z＝0，i＝1；
Z＝ΔZ，i＝2；
6) Drawing a tapered curve of the whole coil according to the position coordinates (ri, Zi) of each turn of the winding, wherein i is 1,2 … … N + 1;
7) processing a conical mould according to the conical curve of the step 6).
the conical die 8 completely adopts a variable cone curve, so that the cost is high, and in order to reduce the cost, the assembly welding of a plurality of sections of conical cylinders can be adopted for replacing, and in the step 6), the variable cone curve of the whole coil is drawn by adopting a straight line; the step 7) is specifically as follows: processing a plurality of sections of conical cylinders according to the straight line in the step 6), then connecting a plurality of conical cylinders into a whole to form a conical mold, wherein each section of conical cylinder is of a straight cone structure, the curve formed by connecting a plurality of small straight cones approaches to a tapered curve, and compared with the traditional straight conical coil, the wound tapered coil has small inter-turn voltage, improves inter-turn voltage resistance and inter-turn flashover, further prolongs the service life of the coil, and the insulation performance of the coil is not obviously reduced.
A winding method based on the crepe paper interval precision winding machine for manufacturing the conical high-voltage secondary coil comprises the following steps:
1) The coil bobbin 61 and the crepe paper tray 71 are respectively mounted on the coil winding bracket 6 and the crepe paper bracket 7;
2) the coil winding is started to be wound from the small end of the conical die 8, the coil winding end on the coil winding drum 61 is fixed at the upper part of the small end of the conical die 8, and the crepe paper end on the crepe paper disc 71 is fixed at the same position of the conical die 8 and the coil winding end after being wound from the lower part of the conical die 8;
3) Rotating the rotating handle 21, and as shown in fig. 3, when the rotating handle 21 drives the conical mold 8 to rotate clockwise from the small end to the large end of the conical mold 8, the secondary coil is counterclockwise; meanwhile, the driving wheel 22 drives the driven wheel 23 to rotate, the driven wheel 23 drives the speed reducer 5 and the threaded lead screw 34 to rotate clockwise, the thread of the threaded lead screw 34 rotates anticlockwise, the threaded lead screw 34 drives the lead screw connecting block 32 to move along the axial large end of the conical die 8, then the crepe paper support 7 moves, and crepe paper on the crepe paper disc 71 is spirally wound on the conical die 8;
When the conical die 8 rotates, the coil winding is wound on the surface of the crepe paper by adjusting the contact position of the coil winding and the crepe paper, and the coil winding is close to the previous winding at intervals of the crepe paper, so that the conical non-glue secondary coil structure shown in fig. 1 is formed. In order to facilitate operation and save cost, the rotary handle 21 can be rotated for one circle, and the position of the coil winding is adjusted in a manual operation mode.
If the direction of the secondary coil is required to be adjusted to be clockwise, the winding machine of the embodiment is locally adjusted to a certain degree: the conical mold 8 turns around by 180 degrees, the conical mold 8 rotates anticlockwise, correspondingly, the speed reducer 5 and the screw rod both rotate anticlockwise, and the thread of the screw rod rotates clockwise. In order to realize different winding directions of the coil, the winding machine can be provided with two spiral lead screws with different thread directions.
in the winding method of the embodiment, the length of the crepe paper tray 71 on the crepe paper support 7 is limited, 1 person can be selected to replace the crepe paper tray 71 and continue to connect the crepe paper in the coil winding process, 3 operators can be equipped in the winding machine for winding the coil, 1 person rotates the rotating handle 21, 1 person adjusts the position of the coil winding, the coil winding is close to the previous turn, and 1 person is responsible for continuing to connect the crepe paper.
the above description is only for the purpose of describing the preferred embodiments of the present invention and does not limit the technical solutions of the present invention, and any known modifications made by those skilled in the art based on the main technical concepts of the present invention fall within the technical scope of the present invention.
Claims (9)
1. the utility model provides a crepe paper interval precision winding machine for making taper high-pressure secondary coil which characterized in that: comprises a mounting seat (1), a transmission device, a conical die (8), a coil winding bracket (6) for mounting a coil winding tube (61), and a crepe paper bracket (7) for mounting a crepe paper plate (71); the mounting seat (1) comprises a base (11) and supports (12) vertically arranged at two ends of the base (11);
a winding shaft (13) is arranged at the upper part of the bracket (12);
the conical die (8) is coaxially fixed on the winding shaft (13), and the conical die (8) can rotate relative to the bracket (12);
the transmission device comprises a driving mechanism (2), a translation mechanism (3) and a speed reducer (5);
the driving mechanism (2) comprises a rotating handle (21), a driving wheel (22), a driven wheel (23) and a transmission belt/toothed belt/chain for connecting the driving wheel (22) and the driven wheel (23); the rotating handle (21) and the driving wheel (22) are coaxially arranged at one end of the winding shaft (13), and the driven wheel (23) is connected with the input end of the speed reducer (5);
the speed reducer (5) is arranged on the base (11), and the output end of the speed reducer is connected with the translation mechanism (3);
the translation mechanism (3) is arranged on the base (11) and located on one side of the conical mold (8), the crepe paper support (7) is arranged on the translation mechanism (3), the driving mechanism (2) transmits power to the speed reducer (5), and the crepe paper support (7) on the translation mechanism (3) can move along the axial direction of the conical mold (8) under the action of the speed reducer (5);
the coil winding support (6) is positioned on the other side of the conical die (8).
2. The crepe paper spacing precision winding machine for making the pyramidal high-voltage secondary coil according to claim 1, wherein:
the conical die (8) is of a variable cone structure and is processed by the following steps:
1) setting the number of turns of a secondary coil required to be wound by the conical die to be N, wherein the radius of a small end of the secondary coil is R1, and the radius of a large end of the secondary coil is R2;
2) the starting radial radius of each turn of the winding from the small end of the secondary coil is ri, ri being calculated by the following formula:
r＝R(R/R) (1)
Wherein i is 1,2 … …, N;
the radial radius of the terminal point of the nth winding of the winding is rN +1, and rN +1 is R2;
3) and S is the center distance between adjacent turns of the winding, and is calculated by the following formula:
wherein L is the axial length of the secondary coil; j is 1,2 … … N;
4) let the axial distance between adjacent turns of radii rj and rj +1 be Δ Zj, Δ Zj is calculated by the following formula:
ΔZ＝sqrt[S-(r-r)] (3)
wherein j is 1,2 … … N;
5) Setting the axial position of the initial position of each turn of the winding as Zi, and calculating the Zi by the following formula:
Z＝0，i＝1；
Z＝ΔZ，i＝2；
6) drawing a tapered curve of the whole coil according to the position coordinates (ri, Zi) of each turn of the winding, wherein i is 1,2 … … N + 1;
7) Processing a conical mould according to the conical curve of the step 6).
3. the crepe paper spacing precision winding machine for making the pyramidal high-voltage secondary coil according to claim 2, wherein: in the step 6), a variable cone curve of the whole coil is drawn by adopting a straight line;
The step 7) is specifically as follows: processing a plurality of sections of conical surfaces according to the straight lines in the step 6) to form a conical mold.
4. a crepe paper spacing precision winding machine for making pyramidal high-voltage secondary coils according to claim 3, characterized in that:
The translation mechanism (3) comprises a linear guide rail (31), a lead screw connecting block (32), a lead screw nut (33) and a threaded lead screw (34);
The linear guide rail (31) is arranged on the base (11) in parallel to the axis of the conical mould (8);
the lower surface of the lead screw connecting block (32) is provided with a linear guide groove which is clamped on the linear guide rail (31), and a lead screw nut (33) is fixed on the lead screw connecting block (32);
one end of the threaded lead screw (34) is connected with the output end of the speed reducer (5), and the other end of the threaded lead screw penetrates through the lead screw nut (33) and then is erected on the base (11);
the crepe paper support (7) is fixed on the lead screw connecting block (32).
5. The crepe paper spacing precision winding machine for making the pyramidal high-voltage secondary coil according to claim 4, wherein:
the distance between adjacent turns of the crepe paper wound on the conical die (8) on the crepe paper support (7) can be adjusted by changing the ratio of the wheel diameter of the driving wheel (22) to the wheel diameter of the driven wheel (23), the reduction ratio of the speed reducer (5) or the pitch of the threaded lead screw (34).
6. the crepe paper spacing precision winding machine for making a pyramidal high-voltage secondary coil according to claim 5, characterized in that: the screw nut (33) is positioned in the middle of the screw connecting block (32);
the linear guide rail (31) and the linear guide groove are both arranged in parallel, and the two linear guide grooves are positioned on two sides of the screw nut (33).
7. The crepe paper space-precision winding machine for manufacturing a tapered high-voltage secondary coil according to any one of claims 1 to 6, characterized in that: the rotating handle (21) is arranged close to the small end of the conical mould (8).
8. the crepe paper spacing precision winding machine for making the pyramidal high-voltage secondary coil according to claim 7, wherein: two ends of the winding shaft (13) are arranged on the bracket (12) through bearings;
a rotary handle (21) is arranged on the outer side of one bearing.
9. A winding method of the crepe paper spacing precision winding machine for manufacturing the conical high-voltage secondary coil according to any one of claims 1 to 8, comprising the steps of:
1) The coil winding cylinder (61) and the crepe paper disc (71) are respectively arranged on the coil winding bracket (6) and the crepe paper bracket (7);
2) fixing the coil winding end on the coil winding drum (61) at the upper part of the small end of the conical die (8), winding the crepe paper end on the crepe paper disc (71) from the lower part of the conical die (8), and fixing the crepe paper end on the conical die (8) at the same position with the coil winding end;
3) rotating the rotating handle (21), wherein the rotating handle (21) drives the conical die (8) to rotate; meanwhile, the driving wheel (22) drives the driven wheel (23) to rotate, and the speed reducer (5) drives the crepe paper support (7) on the translation mechanism (3) to axially move along the conical die (8) under the driving of the driven wheel (23);
When the conical die (8) rotates, the coil winding is wound on the surface of the crepe paper, and the adjacent coil winding is arranged at intervals of the crepe paper and is close to each other by adjusting the contact position of the coil winding and the crepe paper.
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| CN201910801895.1A CN110544583B (en) | 2019-08-28 | 2019-08-28 | Crepe paper interval precision winding machine and method of conical high-voltage secondary coil |
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| CN201910801895.1A CN110544583B (en) | 2019-08-28 | 2019-08-28 | Crepe paper interval precision winding machine and method of conical high-voltage secondary coil |
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| CN110544583B CN110544583B (en) | 2021-06-08 |
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| GB191420959A (en) * | 1914-10-14 | 1915-08-19 | William Hamilton Wilson | Improvements in and relating to High Tension Windings for Electrical Apparatus. |
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| CN102385983A (en) * | 2010-09-03 | 2012-03-21 | 上海祯驰电气设备有限公司 | Foil type winding machine wound with two-layer coils |
| CN102030223B (en) * | 2010-11-26 | 2012-06-06 | 哈尔滨工业大学 | Constant-tension winding machine for niobium titanium-copper superconducting solenoid coils |
| CN107697734A (en) * | 2017-11-20 | 2018-02-16 | 湖州市练市聚丰线缆厂 | A kind of enamel-cover line winding device |
| CN109786081A (en) * | 2019-03-11 | 2019-05-21 | 西北核技术研究所 | Method and the coil of the cone cell without glue secondary coil are manufactured based on crimped paper |
| CN109817447A (en) * | 2019-03-15 | 2019-05-28 | 西北核技术研究所 | A kind of taper high voltage pulse transformer secondary coil coiling skeleton |
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2019
- 2019-08-28 CN CN201910801895.1A patent/CN110544583B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191420959A (en) * | 1914-10-14 | 1915-08-19 | William Hamilton Wilson | Improvements in and relating to High Tension Windings for Electrical Apparatus. |
| CN2084920U (en) * | 1990-09-28 | 1991-09-18 | 成鸣九 | Simple arranging device of hand winding machine |
| CN102385983A (en) * | 2010-09-03 | 2012-03-21 | 上海祯驰电气设备有限公司 | Foil type winding machine wound with two-layer coils |
| CN102030223B (en) * | 2010-11-26 | 2012-06-06 | 哈尔滨工业大学 | Constant-tension winding machine for niobium titanium-copper superconducting solenoid coils |
| CN107697734A (en) * | 2017-11-20 | 2018-02-16 | 湖州市练市聚丰线缆厂 | A kind of enamel-cover line winding device |
| CN109786081A (en) * | 2019-03-11 | 2019-05-21 | 西北核技术研究所 | Method and the coil of the cone cell without glue secondary coil are manufactured based on crimped paper |
| CN109817447A (en) * | 2019-03-15 | 2019-05-28 | 西北核技术研究所 | A kind of taper high voltage pulse transformer secondary coil coiling skeleton |
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|---|---|
| CN110544583B (en) | 2021-06-08 |
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