CN115579235A - Forming method of amorphous R-shaped transformer iron core - Google Patents

Abstract

The invention provides a method for forming an amorphous R-shaped transformer iron core, which comprises the following operation steps: 1) Feeding the amorphous alloy strip; 2) Rectifying the deviation of the amorphous alloy strip; 3) Dedusting the amorphous alloy strip; 4) Cutting the amorphous alloy strip, conveying the corrected amorphous alloy strip into cutting equipment, and cutting one side of the amorphous alloy strip into a cambered surface through the cutting equipment; 5) And winding the amorphous alloy strip, and winding and molding the cut amorphous alloy strip through a winding shaft system. According to the invention, the amorphous strip is used for manufacturing the R-shaped transformer core, so that the iron loss of the transformer can be greatly reduced, and the energy efficiency grade of the transformer is improved; the winding speed of the strip material of the amorphous R-shaped transformer iron core manufactured by the invention is as high as 2m/S, the manufacturing period and the cost of the R-shaped transformer iron core can be greatly shortened, and the amorphous R-shaped transformer iron core is very beneficial to popularization and use.

Description

Forming method of amorphous R-shaped transformer iron core

Technical Field

The invention relates to the technical field of transformer production, in particular to a method for forming an amorphous R-shaped transformer core.

Background

The amorphous alloy is solidified by super-quenching, atoms are not in time of orderly arranging and crystallizing when the alloy is solidified, and the obtained solid alloy has a long-range disordered structure and does not have crystal grains and crystal boundaries of crystalline alloy. The amorphous alloy has a plurality of unique properties, and is a research and development focus of the material science community at home and abroad from the 80 s due to excellent properties and simple process. The iron-based amorphous alloy is composed of 80% Fe and 20% Si, B metal elements, and has high saturation induction (1.56T) and superior properties in all aspects of permeability, exciting current and iron loss to silicon steel sheet. The iron-based amorphous magnetically soft alloy strip is an amorphous alloy material with the largest global production and application scale at present, and is widely applied to industries such as transformers, mutual inductors, motors and the like.

An R-type transformer (the section of an iron core column is circular) is a new product in dry-type transformers. The cross section of the iron core is circular, and the traditional R-shaped transformer iron core firstly performs oblique shearing on two sides of a strip material and then winds the strip material after the oblique shearing. Therefore, the transformer manufactured in the way has no noise, small magnetic leakage, small no-load current, low iron loss and high efficiency; and because the coil is cylindrical, the length of copper wire of each circle is short, so, the internal resistance is small, the copper consumption is low, the temperature rise is low, the overload fluctuation is small, the explosion force is better than the toroidal transformer; in order to improve the overall performance of a transformer, it is necessary to improve the performance of the core of the motor. Generally, the performance of the transformer core is improved by selecting and improving the material of the transformer core, adjusting the magnetic permeability of the material, and controlling the iron loss. Or the processing technology of the iron core is improved, and the influence of processing stress and the like on the iron core is reduced. The amorphous alloy material is a soft magnetic material with high magnetic conductivity and low loss, and has been successfully applied to various power transformer planar cores, so that the no-load loss of the transformer can be reduced by more than 70%. However, since the amorphous ribbon is usually only about 0.025mm thick, 900HV vickers, thin material and high hardness, it is very difficult to perform oblique shearing and winding of the amorphous R-type transformer. Therefore, a new solution is needed to be provided, which can realize the winding scheme of the amorphous R-type transformer core, but the requirements on control accuracy and equipment in the process are not high, and the production cost of the R-type transformer can be reduced as a whole.

Disclosure of Invention

The invention aims to: the manufacturing process of the amorphous R-shaped transformer iron core is provided, so that the manufacturing process of the amorphous R-shaped transformer iron core is simpler and the cost is lower; the manufacturing process of the amorphous R-shaped transformer is more efficient and faster, the winding is not required to be carried out after the strip is obliquely cut, the two arc surfaces of the amorphous R-shaped transformer core are directly wound by combining the winding platform moving method and the strip oblique cutting method, and the amorphous R-shaped transformer core is directly wound and formed, so that the manufacturing process has the advantages of low cost and simple process.

In order to achieve the above purpose, the invention provides the following technical scheme:

the forming method of the amorphous R-shaped transformer iron core comprises the following operation steps:

1) Feeding the amorphous alloy strip, namely installing an amorphous alloy strip reel disc at the output end of a discharging motor, and driving the amorphous alloy strip reel disc to discharge the amorphous alloy strip through the discharging motor;

2) Correcting the deviation of the amorphous alloy strip, namely penetrating the supplied amorphous alloy strip into deviation correcting equipment for correcting the deviation;

3) Dedusting the amorphous alloy strip, and discharging the surface viscose and the scraps of the amorphous alloy strip on the rectified amorphous alloy strip by adopting a dust collector;

4) Cutting the amorphous alloy strip, conveying the corrected amorphous alloy strip into cutting equipment, and cutting one side of the amorphous alloy strip into a cambered surface through the cutting equipment;

5) And winding the amorphous alloy strip, and winding and molding the cut amorphous alloy strip through a winding shaft system. As a preferred technical solution of the present application, in the step 4), the cutting includes the following steps:

a) X-axis displacement adjustment, namely driving laser cutting equipment to perform X-axis upper displacement adjustment through an X-axis lead screw module so as to realize adjustment of cutting width;

b) And cutting, namely starting laser cutting equipment to cut the side of the amorphous alloy strip.

As a preferable technical scheme of the present application, in the step b), the cut amorphous alloy strip is divided into a winding portion and a scrap portion, the winding portion is continuously conveyed into a winding shaft system, and the scrap portion is separated from the winding portion and then is subjected to a discharging operation.

As a preferable technical solution of the present application, in the step 5), circular arc winding from the center to both sides is adopted in the winding;

under the deviation correction control of the deviation correction equipment, before the amorphous strip material does not enter the winding shaft system, the part of the amorphous strip material does not move relatively in the moving direction of the sliding table;

secondly, controlling the sliding table to move left and right, namely controlling the strip rolled into the shaft system around the winding shaft frenulum to move relatively, so that the amorphous strip fed into the winding shaft system moves relatively when the winding shaft system winds the R-type transformer iron core, thereby realizing the winding of a cambered surface of the R-type transformer iron core, and enabling the wound strip to form two parts including a cutting waste A and a transformer iron core body B;

and finally, separating the cutting waste A from the transformer core body B after the winding is finished to obtain the transformer core.

Compared with the prior art, the invention has the beneficial effects that:

1. the R-shaped transformer core is made of the amorphous strip, so that the iron loss of the transformer can be greatly reduced, and the energy efficiency grade of the transformer is improved.

2. The winding speed of the strip material of the amorphous R-shaped transformer iron core manufactured by the invention is as high as 2m/S, the manufacturing period and the cost of the R-shaped transformer iron core can be greatly shortened, and the amorphous R-shaped transformer iron core is very beneficial to popularization and use.

Drawings

Fig. 1 is a schematic structural diagram of a molding apparatus for an amorphous R-type transformer core provided in embodiment 1 of the present application;

fig. 2 is a cross-sectional view of an R-type transformer core 3 of the method of forming an amorphous R-type transformer core provided in embodiment 2 of the present application;

fig. 3 is an exploded view of A, B of an R-shaped transformer core 3 of the method for forming an amorphous R-shaped transformer core according to embodiment 2 of the present application;

fig. 4 is a schematic structural diagram of a transformer core wound with 3 tapes c, d, e of different widths in the method for forming an amorphous R-type transformer core according to embodiment 2 of the present application;

fig. 5 is a schematic diagram of a transformer core structure in a method for forming an amorphous R-shaped transformer core according to embodiment 2 of the present application.

The figures are marked by: 1. controlling the sliding table; 2. winding a shaft system; 3. an R-type transformer core; 4. a sliding table module; 5. laser cutting equipment; 6. a deviation rectifying device; 7. amorphous alloy strip reel disks; 8. a discharging motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.

Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features and technical solutions thereof may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on orientations or positional relationships shown in the drawings, orientations or positional relationships that are usually used for placing the products of the present invention, or orientations or positional relationships that are usually understood by those skilled in the art, and these terms are only used for convenience of description and simplification of the description, and do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the invention provides a forming device of an amorphous R-type transformer core, which comprises a processing table, a discharge motor 8 fixedly installed on one side of the upper surface of the processing table, an amorphous alloy strip reel disk 7 connected to the output end of the discharge motor 8, a deviation rectifying device 6 fixedly installed in the middle of the upper surface of the processing table, a sliding table module 4 fixedly connected to one side of the upper surface of the working table, which is close to the deviation rectifying device, a laser cutting device 5 installed at the moving end of the sliding table module 4, a control sliding table 1 fixedly connected to the other side of the upper surface of the processing table, and a winding shaft system 2 installed at the conveying end of the control sliding table 1.

Specifically, in this embodiment, the discharge motor 8 can discharge the amorphous alloy strip reel disc 7, the discharged amorphous alloy strip passes through the deviation rectifying device 6 and is rectified in the deviation rectifying device 6, so that the amorphous alloy strip can be accurately conveyed below the laser cutting device 5, and a cutting error is avoided, in this embodiment, the laser cutting device 5 is used for performing laser cutting on the strip (the cutting of the strip is not limited to the use of laser cutting, and the use of other physical methods for cutting the strip is an embodiment of the present invention, such as blade cutting), the sliding table module 4 can control the laser cutting device 5 to perform arc cutting on the strip, the cut strip is conveyed into the winding shaft 2, the winding shaft 2 can wind the R-type transformer core 3, when the winding shaft 2 winds the R-type transformer core 3, the sliding table 1 can drive the sliding table 2 to move forward or backward, before the amorphous alloy strip does not enter the winding shaft 2, the amorphous alloy strip does not move in the direction of the sliding table 1, the amorphous alloy strip in the sliding table 2 can be controlled to move, and the sliding table can control the winding shaft 1 to move in the winding shaft, so that the amorphous alloy strip can be wound into the R-type transformer core based on the winding shaft.

Example 2:

referring to fig. 1-5, on the basis of embodiment 1, the present invention provides a method for forming an amorphous R-type transformer core, comprising the following steps:

1) Feeding the amorphous alloy strip, namely installing an amorphous alloy strip reel disc 7 at the output end of a discharging motor 8, and driving the amorphous alloy strip reel disc 7 to discharge the amorphous alloy strip through the discharging motor 8;

2) Correcting the deviation of the amorphous alloy strip, namely, penetrating the supplied amorphous alloy strip into a deviation correcting device 6 for correcting the deviation;

3) Dedusting the amorphous alloy strip, and discharging the surface viscose and the scraps of the amorphous alloy strip on the rectified amorphous alloy strip by adopting a dust collector;

4) Cutting the amorphous alloy strip, conveying the corrected amorphous alloy strip into cutting equipment, and cutting one side of the amorphous alloy strip into a cambered surface through the cutting equipment;

5) And (3) winding the amorphous alloy strip, namely winding the cut amorphous alloy strip through a winding shaft system 2 for molding.

In the step 4), the cutting comprises the following operation steps:

a) Adjusting the displacement of the X axis, and driving the laser cutting equipment 5 to perform displacement adjustment on the X axis through the X axis screw rod module to realize the adjustment of the cutting width;

b) And cutting, namely starting the laser cutting equipment 5 to cut the side of the amorphous alloy strip.

The cutting of the strip is not limited to the use of laser cutting, and the use of other physical methods to cut the strip is an example of this patent, such as blade cutting.

In the step b), the cut amorphous alloy strip is divided into a winding part and a waste part, the winding part is continuously conveyed into a winding shaft system, and the waste part is separated from the winding part and then is subjected to unloading operation.

In the step 5), circular arcs from the center to two sides are adopted for winding;

under the control of the deviation rectifying device 6, before the amorphous strip does not enter the winding shaft system 2, the amorphous strip does not move relatively in the moving direction of the sliding table 1;

secondly, the sliding table 1 is controlled to move left and right, namely the winding shaft system 2 can be controlled to drive the strip rolled into the shaft system to move relatively, so that the amorphous strip entering the winding shaft system 2 moves relatively when the winding shaft system 2 winds the R-shaped transformer core, and therefore the winding of a cambered surface of the R-shaped transformer core is realized, and the strip after the winding is finished forms two parts including a cutting waste A and a transformer core body B;

and finally, separating the cutting waste A from the transformer core body B after the winding is finished to obtain the transformer core.

The R-shaped transformer core is manufactured by using the amorphous strip, so that the iron loss of the transformer can be greatly reduced, and the energy efficiency grade of the transformer is improved; the winding speed of the strip material is as high as 2m/S, the manufacturing period and the cost of the R-shaped transformer core can be greatly shortened, and the amorphous R-shaped transformer is very favorable for popularization and use.

The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above specific embodiments, and therefore, any modifications or equivalents of the present invention may be made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.

Claims (4)

1. A method for forming an amorphous R-shaped transformer core is characterized by comprising the following operation steps:

feeding the amorphous alloy strip, namely installing an amorphous alloy strip reel disc at the output end of a discharging motor, and driving the amorphous alloy strip reel disc to discharge the amorphous alloy strip through the discharging motor;

correcting the deviation of the amorphous alloy strip, namely penetrating the supplied amorphous alloy strip into deviation correcting equipment for correcting the deviation;

dedusting the amorphous alloy strip, and discharging the surface viscose and the scraps of the amorphous alloy strip on the rectified amorphous alloy strip by adopting a dust collector;

cutting the amorphous alloy strip, conveying the corrected amorphous alloy strip into cutting equipment, and cutting one side of the amorphous alloy strip into a cambered surface through the cutting equipment;

and winding the amorphous alloy strip, and winding and molding the cut amorphous alloy strip through a winding shaft system.

2. The method as claimed in claim 1, wherein the cutting in step 4) comprises the following steps:

a) X-axis displacement adjustment, namely driving laser cutting equipment to perform X-axis upper displacement adjustment through an X-axis lead screw module so as to realize adjustment of cutting width;

b) And cutting, namely starting laser cutting equipment to cut the side of the amorphous alloy strip.

3. The method as claimed in claim 2, wherein in the step b), the cut amorphous alloy ribbon is divided into a winding portion and a scrap portion, the winding portion is continuously conveyed into a winding axis, and the scrap portion is separated from the winding portion and then subjected to a discharging operation.

4. The method as claimed in claim 1, wherein in the step 5), the winding is performed by using circular arcs extending from a center to both sides;

under the control of the deviation correction device, before the amorphous strip does not enter the winding shaft system, the amorphous strip does not move relatively in the moving direction of the sliding table;

secondly, the sliding table is controlled to control the strip which is wound into the shaft system around the shaft lacing to move relatively, so that the amorphous strip which enters the winding shaft system moves relatively when the winding shaft system winds the R-type transformer core, winding of a cambered surface of the R-type transformer core is achieved, and the strip after winding forms two parts including a cutting waste A and a transformer core body B;

and finally, separating the cutting waste A from the transformer core body B after the winding is finished to obtain the transformer core.

Images