CN113941661A - Method for forming rotor disc of disc type switch reluctance motor - Google Patents
Method for forming rotor disc of disc type switch reluctance motor Download PDFInfo
- Publication number
- CN113941661A CN113941661A CN202111201310.6A CN202111201310A CN113941661A CN 113941661 A CN113941661 A CN 113941661A CN 202111201310 A CN202111201310 A CN 202111201310A CN 113941661 A CN113941661 A CN 113941661A
- Authority
- CN
- China
- Prior art keywords
- silicon steel
- disc
- axial end
- reluctance motor
- switched reluctance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 241
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 3
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a method for forming a rotor disc of a disc type switched reluctance motor, which comprises the steps of providing a silicon steel disc, wherein the silicon steel disc comprises a disc body and a connecting body, the disc body is wound by continuous silicon steel sheets and is provided with a plurality of layers of silicon steel sheets which are arranged along the radial direction, and the connecting body is connected with the plurality of layers of silicon steel sheets which are arranged along the radial direction; cutting the silicon steel disc along the circumferential direction to form a plurality of silicon steel blocks, and reserving a connector on two axial end faces of each silicon steel block; providing a retainer, wherein the retainer comprises a circular plate and a supporting plate; the silicon steel blocks are arranged between two adjacent supporting plates in a mode that two axial end faces of the silicon steel blocks are arranged along the axial direction of the retainer; the limiting ring is sleeved on the outer periphery of the supporting plate; remove the connector on the diaxon of silicon steel piece is to the terminal surface to make every layer of silicon steel piece insulating, prevent that the motor from producing the vortex at the during operation, cause motor inefficiency, it is too big to generate heat, and solve how the shaping of silicon steel sheet and change over into the holder and radial spacing scheduling problem, realize the manufacturability of this type of motor.
Description
Technical Field
The invention relates to the field of disk type switched reluctance motors, in particular to a method for forming a rotor disk of a disk type switched reluctance motor.
Background
The switched reluctance motor is used as a part for realizing energy conversion in an electric drive system, and has the advantages of firm structure, low cost, strong fault-tolerant performance, high starting torque and the like. The disk type switched reluctance motor further has the advantages of short axial length, high power density and the like, and is suitable for occasions with strict requirements on axial space.
Among the prior art, disc switch reluctance motor generally adopts the silicon steel sheet as rotor and stator lamination material, and in the forming process of rotor silicon steel piece, because the silicon steel piece is trapezoidal, consequently need utilize stamping die punching press to obtain the silicon steel sheet of different shape sizes to fold according to the mode that the size is progressively big and press and form trapezoidal silicon steel piece, it has following defect:
first, each shape and size of the silicon steel sheet is required to correspond to a stamping die, which increases the manufacturing cost.
Secondly, many kinds of different shape sizes's silicon steel sheet need arrange and fold according to appointed order, increases the assembly degree of difficulty, has reduced production efficiency.
Thirdly, burrs are easily generated on the silicon steel sheets formed by stamping, insulation among the silicon steel sheets is influenced, electric eddy current is caused to consume electric energy, and even the working efficiency of the motor is reduced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for forming a rotor disk of a disk-type switched reluctance motor, which has low production cost, effectively reduces eddy current loss of the motor, and realizes manufacturability, and is convenient for industrial mass production.
The invention provides a method for forming a rotor disc of a disc type switched reluctance motor, which comprises the following steps:
(a) providing a silicon steel disc, wherein the silicon steel disc comprises a disc body and a plurality of connectors, the disc body is wound by continuous silicon steel sheets and is provided with a plurality of layers of silicon steel sheets arranged along the radial direction, and the connectors are connected with the plurality of layers of silicon steel sheets arranged along the radial direction and are respectively positioned on two axial end faces of the disc body;
(b) cutting the silicon steel disc along the circumferential direction to form a plurality of silicon steel blocks, and reserving the connecting body on two axial end faces of each silicon steel block;
(e) providing a retainer, wherein the retainer comprises a circular plate and a plurality of supporting plates, and the supporting plates are connected to the outer periphery of the circular plate at intervals;
(f) placing the silicon steel blocks between two adjacent support plates in a manner that two axial end faces of the silicon steel blocks are arranged along the axial direction of the retainer;
(g) a limiting ring is sleeved on the outer periphery of the supporting plate so that the silicon steel block is fixed between the circular plate and the limiting ring;
(h) and removing the connecting bodies on the two axial end faces of the silicon steel block so as to insulate each layer of silicon steel sheet of the silicon steel block.
As a preferred technical solution, the step (a) further comprises the steps of:
(a1) winding a continuous silicon steel sheet to form the disc body;
(a2) and welding a plurality of connectors on the two axial end faces of the disc body so as to connect a plurality of layers of silicon steel sheets arranged along the radial direction.
As a preferred technical solution, the method further comprises, after the step (h):
(j) and chemically treating the two axial end faces of the silicon steel block after the connecting body is removed.
As a preferred technical solution, the method further comprises the following steps between the step (b) and the step (e):
(c) and respectively processing the two circumferential sides of the silicon steel block to form the silicon steel guide parts which are sunken inwards.
As a preferred technical solution, the method further comprises the following steps between the step (c) and the step (e):
(d) chemically treating the silicon steel block to form both circumferential sides of the silicon steel guide.
Preferably, the distance between the two axial end surfaces of the silicon steel block is greater than the axial dimension of the holder, and the two axial end surfaces of the silicon steel block protrude outward beyond the two axial end surfaces of the holder in the step (f).
Preferably, the retainer is formed by laminating a base material having a circular plate portion and a plurality of support plate portions, and the step (e) further includes the steps of:
(e1) the plurality of layers of the circular plate parts are laminated to form the circular plate, and the plurality of layers of the supporting plate parts are laminated to form the supporting plate.
Preferably, the support plate has an upper region, a middle region and a lower region arranged along the axial direction of the holder, and the circumferential dimension of the support plate portion located in the middle region is greater than or less than the circumferential dimension of the support plate portion located in the upper region and the circumferential dimension of the support plate portion located in the lower region, respectively, so that the middle region forms a support guide portion engaged with the silicon steel guide portion.
As a preferred solution, the chemical treatment comprises acid washing.
As a preferable technical solution, the method further comprises, after the step (j):
and performing rust prevention treatment on the two axial end faces of the silicon steel block subjected to chemical treatment.
Compared with the prior art, the technical scheme has the following advantages:
the disc body is formed by winding continuous silicon steel sheets, and a plurality of connectors are connected to the two axial end faces of the disc body to form the silicon steel disc, wherein the plurality of layers of silicon steel sheets arranged along the radial direction of the disc body are connected by the connecting body and are not dispersed, so as to form a plurality of silicon steel blocks by cutting in the step (b), wherein the silicon steel blocks retain the connecting bodies on the two axial end faces of the silicon steel blocks, namely, the silicon steel block is cut and formed without scattering, and then the silicon steel block, the retainer and the spacing ring are assembled into a whole, and removing the connectors on the two axial end faces of the silicon steel block, and carrying out chemical treatment on the two axial end faces of the silicon steel block with the connectors removed to remove burrs and the like, so that the processing surfaces of the silicon steel sheets are not connected with each other, and each layer of silicon steel sheet of the silicon steel block is insulated. Compared with the stamping die with different specifications required by the prior art, the forming efficiency is effectively improved, the cost is reduced, the motor is prevented from generating eddy current during working, the motor efficiency is low, the heating is overlarge, the problems that how the silicon steel sheet is formed to be shifted into a retainer and the radial limit and the like are solved, and the manufacturability of the motor is realized. The invention is further described with reference to the following figures and examples.
Drawings
Fig. 1 is a flowchart of a method for forming a rotor disc of a disc-type switched reluctance motor according to the present invention;
FIG. 2 is a schematic structural view of a rotor disk according to the present invention;
FIG. 3 is a schematic structural diagram of a silicon steel disc according to the present invention;
FIG. 4 is a schematic diagram of the cutting of a silicon steel disc according to the present invention;
FIG. 5 is a schematic structural diagram of a silicon steel block according to the present invention;
FIG. 6 is a schematic structural view of the cage of the present invention;
FIG. 7 is a schematic structural view of a substrate according to the present invention;
FIG. 8 is a schematic view of the assembly process of the retainer, the silicon steel block and the spacing ring according to the present invention;
FIG. 9 is a schematic view of the retainer, the silicon steel block and the stop collar of the present invention after assembly.
In the figure: 100 holders, 110 disks, 120 support plates, 121 support guides, 1000 substrates, 1100 disk portions, 1200 support plate portions, 1201 upper regions, 1202 middle regions, 1203 lower regions, 200 silicon steel blocks, 210 silicon steel guides, 2000 silicon steel disks, 2001 disk bodies, 2002 connectors, 20011 scrap, 300 retaining rings.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
As shown in fig. 2, the rotor disc of the disc-type switched reluctance motor includes a holder 100, a plurality of silicon steel blocks 200, and a limiting ring 300, where the holder 100 includes a circular plate 110 and a plurality of supporting plates 120, the plurality of supporting plates 120 are connected to an outer periphery of the circular plate 110 at intervals, one silicon steel block 200 is installed between two adjacent supporting plates 120, and the limiting ring 300 is sleeved on an outer periphery of the supporting plates 120 to fix the silicon steel blocks 200. Wherein the circular plate 110 and the limiting ring 300 are disposed at two radial sides of the silicon steel block 200 to realize radial fixation. The support plates 120 are disposed at both circumferential sides of the silicon steel block 200 to be circumferentially fixed. Referring to fig. 5 and 6, silicon steel guides 210 are respectively disposed at both circumferential sides of the silicon steel block 200, and support guides 121 engaged with the silicon steel guides 210 are respectively disposed at both circumferential sides of the support plate 120, so that the silicon steel guides 210 and the support guides 121 are engaged with each other to axially fix the silicon steel block. This achieves axial, circumferential and radial fixation of the silicon steel block 200.
The two axial sides of the rotor disc are flush, that is, the axial dimensions of the retainer 100, the silicon steel block 200 and the limiting ring 300 are consistent and smaller, so that the rotor disc with a disc-shaped structure is formed by assembly.
With continued reference to fig. 2 and 5, a space defined between two adjacent support plates 120 is identical to the shape of the silicon steel block 200, such that two circumferential sides of the silicon steel block 200 respectively abut against the two support plates 120, thereby achieving circumferential fixation. Specifically, the silicon steel block 200 is trapezoidal, the trapezoidal top of the silicon steel block 200 abuts against the circular plate 110, the trapezoidal bottom of the silicon steel block 200 abuts against the limiting ring 300, and the two trapezoidal waists of the silicon steel block 200 abut against the supporting plates 120 on both sides respectively.
More specifically, a plurality of silicon steel sheets laminated to form the silicon steel block 200 are arranged in a radial direction with increasing size. The silicon steel sheet is arc-shaped, namely the trapezoidal top of the silicon steel block 200 is an arc-shaped groove, and the trapezoidal bottom of the silicon steel block 200 is an arc-shaped bulge.
The method for forming the rotor disc of the disc-type switched reluctance motor is described in detail below with reference to fig. 1 to 9, wherein the method includes:
(a) providing a silicon steel disc 2000, wherein the silicon steel disc 2000 comprises a disc body 2001 and a plurality of connecting bodies 2002, the disc body 2001 is wound by continuous silicon steel sheets and is provided with a plurality of layers of silicon steel sheets which are arranged in the radial direction, and the connecting bodies 2002 are connected with the plurality of layers of silicon steel sheets which are arranged in the radial direction and are respectively positioned on two axial end faces of the disc body 2001;
(b) cutting the silicon steel disc 2000 in the circumferential direction to form a plurality of silicon steel blocks 200, and retaining the connectors 2002 on both axial end surfaces of each of the silicon steel blocks 200;
(e) providing a holder 100, wherein the holder 100 comprises a circular plate 110 and a plurality of support plates 120, and the plurality of support plates 120 are connected to the outer periphery of the circular plate 110 at intervals;
(f) the silicon steel blocks 200 are placed between two adjacent support plates 120 in such a manner that both axial end surfaces of the silicon steel blocks 200 are arranged along the axial direction of the cage 100;
(g) a limiting ring 300 is sleeved on the outer periphery of the supporting plate 120, so that the silicon steel block 200 is fixed between the circular plate 110 and the limiting ring 300;
(h) the connecting bodies 2002 on both axial end surfaces of the silicon steel block 200 are removed to insulate each layer of silicon steel sheet of the silicon steel block 200.
The disc body 2001 is wound by a continuous silicon steel sheet, and a plurality of the connectors 2002 are connected to both axial end surfaces of the disc body 2001 to form the silicon steel disc 2000, wherein the plurality of layers of silicon steel sheets arranged in the radial direction of the disc body 2001 are connected by the connectors 2002 without being scattered, so that a plurality of silicon steel blocks 200 are cut and formed in the step (b), and at this time, the silicon steel blocks 200 retain the connectors 2002 to both axial end surfaces of the silicon steel blocks 200, that is, the silicon steel blocks 200 formed by cutting are not scattered, and then the silicon steel blocks 200, the holder 100, and the retainer ring 300 are assembled as one body, and the connectors 2002 on both axial end surfaces of the silicon steel blocks 200 are removed to insulate each layer of the silicon steel sheets of the silicon steel blocks 200. Compared with the prior art that different specifications of stamping dies need to be provided, the forming efficiency is effectively improved, the cost is reduced, the loss of electric eddy current to electric energy caused by short circuit between silicon steel sheets is prevented, and the working efficiency of the motor is improved.
The step (a) includes: a silicon steel disc 2000 is provided, the silicon steel disc 2000 including a disc body 2001 and a plurality of connection bodies 2002, the disc body 2001 is wound by a continuous silicon steel sheet and has a plurality of layers of silicon steel sheets arranged in a radial direction, and the connection bodies 2002 connect the plurality of layers of silicon steel sheets arranged in the radial direction and are respectively located at two axial end faces of the disc body 2001.
The disc body 2001 is ring-shaped and has two axial end surfaces, and the connection bodies 2002 are respectively located on the two axial end surfaces of the disc body 2001 to connect a plurality of layers of silicon steel sheets arranged in a radial direction.
On an axial end face of each of the disk bodies 2001, the connection bodies 2002 extend from an annular inner peripheral edge of the disk body 2001 to an annular outer peripheral edge of the disk body 2001, and a plurality of the connection bodies 2002 are provided at intervals. The gap between two adjacent connectors 2002 is small, the width of the connector 2002 is large, and the connection effect of the connector 2002 on the plurality of silicon steel sheets is improved. Preferably, the width of the connecting body 2002 refers to the dimension of the connecting body 2002 along the circumferential direction of the spiral ladder body 2001, which is 7 times or more of the gap between two adjacent connecting bodies 2002.
In one embodiment, the two connecting bodies 2002 located on the axial end face of the disc body 2001 are arranged in one-to-one correspondence.
In another embodiment, the two connecting bodies 2002 located at the axial end face of the disc body 2001 are arranged in a staggered manner.
The step (a) further comprises the steps of:
(a1) winding a continuous silicon steel sheet to form the disc body 2001;
(a2) a plurality of the connection bodies 2002 are welded to both axial end surfaces of the disc body 2001 to connect a plurality of layers of silicon steel sheets arranged in a radial direction.
In the step (a1), the silicon steel sheet is wound continuously and uniformly in width to form the disc body 2001 of a disc-shaped structure, and the winding is more convenient and faster than the process of punching the lamination sheet with reference to fig. 2.
In the step (a2), the connecting bodies 2002 are sequentially placed on the axial end face of the disc body 2001, and the connecting bodies 2002 are welded to the multiple layers of silicon steel sheets arranged in the radial direction by a laser welding method, so as to realize connection among the multiple layers of silicon steel sheets, and further prevent the silicon steel sheets from being scattered, so that the silicon steel blocks 200 are formed by subsequent cutting. In this case, the connector 2002 may be a welding rod.
The radial dimension of the disc body 2001 is determined by the number of wound layers of the silicon steel sheet, and the circumferential dimension of the disc body 2001 is determined by the thickness of the silicon steel sheet. And the overall size of the disc body 2001 is designed according to the number and size of the silicon steel blocks 200 and other factors.
The step (b) comprises: the silicon steel disc 2000 is cut in a circumferential direction to form a plurality of silicon steel blocks 200, and the connection bodies 2002 are retained at both axial end surfaces of each of the silicon steel blocks 200.
The silicon steel disc 2000 may be positioned by using the inner and outer circumferences of the silicon steel disc 2000, and then the silicon steel disc 2000 may be cut by using a laser or wire cutting method, thereby obtaining the silicon steel block 200, referring to fig. 3.
The cutting tools respectively cut perpendicular to the two axial end surfaces of the silicon steel block 200 to keep the connecting bodies 2002 at the two axial end surfaces of the silicon steel block 200, so as to prevent separation of silicon steel sheets forming the silicon steel block 200, as shown in fig. 3 and 4, wherein a plurality of silicon steel blocks 200 can be formed by one-time feeding along the circumferential direction, thereby improving the forming efficiency of the silicon steel block 200. As shown in fig. 4, the silicon steel disc 2000 is removed from the silicon steel block 200, leaving waste 20011.
As shown in fig. 4 and 5, the silicon steel block 200 has a trapezoidal shape, and the silicon steel sheets forming the silicon steel block 200 are arranged along the height of the trapezoidal shape and gradually increase in size. The silicon steel sheet is the arc, the trapezoidal top of silicon steel piece 200 is the arc recess, the trapezoidal bottom of silicon steel piece 200 is the arc arch.
In one embodiment, the silicon steel disc 2000 is cut to form a plurality of silicon steel blocks 200, which may be correspondingly assembled into a rotor disc. I.e. the number of pieces of silicon steel 200 cut to form corresponds to the number of pieces of silicon steel 200 required for the rotor disc.
In another embodiment, the silicon steel disc 2000 is cut to form a greater number of pieces of silicon steel 200 than the number of pieces of silicon steel 200 required for the rotor disc.
Further comprising the steps between step (b) and step (e) of:
(c) both sides of the silicon steel block 200 in the circumferential direction are respectively processed to form silicon steel guides 210 recessed inward.
The silicon steel guide 210 is configured to cooperate with the support guide 121 of the support plate 120 to prevent the silicon steel block 200 from being axially displaced.
As shown in fig. 5, the silicon steel guide 210 extends from the top of the trapezoid of the silicon steel block to the bottom of the trapezoid of the silicon steel block, i.e., penetrates all silicon steel plates constituting the silicon steel block 200. The silicon steel guide 210 is located approximately at the middle of the two axial end surfaces of the silicon steel block 200.
Further comprising the steps between step (c) and step (e) of:
(d) chemically treating the silicon steel blocks 200 to form both circumferential sides of the silicon steel guide 210.
Especially, process the position of silicon steel guide part 210 to get rid of the burr that the processing formed etc. prevents silicon steel sheet's machined surface department interconnect, and then guarantees silicon steel sheet layer insulation, prevents to cause the loss of electric eddy current to the electric energy, and then promotes the work efficiency and the manufacturability of motor. The chemical treatment includes acid washing with a chemical agent (medium strong acid) and the like.
The step (e) comprises: a holder 100 is provided, the holder 100 includes a circular plate 110 and a plurality of support plates 120, and the plurality of support plates 120 are attached to an outer periphery of the circular plate 110 at intervals.
The spaces defined between two adjacent support plates 120, which are in conformity with the shape of the silicon steel block 200, are each trapezoidal. It should be noted that the axial dimension of the retainer 100 is larger than the distance between the two axial end faces of the silicon steel block 200, so that in the step (f), the two axial end faces of the silicon steel block 200 protrude outward from the two axial end faces of the retainer 100, referring to fig. 9, so that the protruding portion is cut off, i.e., the connecting body 2002 is cut off in the step (h).
The retainer 100 is an integrally formed retainer, specifically, as shown in fig. 6 and 7, the retainer 100 is formed by laminating a base material 1000, the base material 1000 may be made of glass fiber, the base material 1000 has a circular plate portion 1100 and a plurality of supporting plate portions 1200 integrally formed, and the step (e) further includes the steps of:
(e1) the circular plate portion 1100 is laminated in plural layers to form the circular plate 110, and the supporting plate portion 1200 is laminated in plural layers to form the supporting plate 120.
As shown in fig. 6, support guides 121 are respectively disposed at two sides of the circumferential direction of the support plate 120, and the support guides 121 extend from the outer circumferential edge of the support plate 120 to the inner circumferential edge of the support plate 120 connected to the circular plate 110. The supporting guide 121 may be a protrusion structure embedded in the silicon steel guide 210. Of course, the supporting guide 121 may also be a recessed structure, which is opposite to the silicon steel guide 210, and is axially fixed by a steel nail passing through the supporting guide 121 and the silicon steel guide 210. The forming process is described below by taking the supporting and guiding portion 121 in a bump structure as an example:
referring to fig. 6, the support plate 120 has an upper region 1201, a middle region 1202 and a lower region 1203 arranged along the axial direction of the holder 100, and the circumferential dimension of the support plate portion 1200 located in the middle region 1202 is larger than the circumferential dimension of the support plate portion 1200 located in the upper region 1201 and the lower region 1202, respectively, so that the middle region 1202 forms the support guide 121 engaged with the silicon steel guide 210, and the support guide 121 has a bump structure.
When the circumferential dimension of the support plate portion 1200 located in the middle region 1202 is smaller than the circumferential dimension of the support plate portion 1200 located in the upper region 1201 and the lower region 1202, respectively, the support guide portion 121 formed in the middle region 1202 has a concave structure.
The step (f) includes: the silicon steel blocks 200 are placed between the adjacent two support plates 120 in such a manner that both axial end surfaces of the silicon steel blocks 200 are arranged along the axial direction of the cage 100, referring to fig. 8.
With the silicon steel guide part 210 with support guide part 121 the cooperation will silicon steel piece 200 is embedded in adjacent two between the backup pad 120, because silicon steel guide part 210 is located the circumference both sides of silicon steel piece 200, consequently the two axial terminal surfaces of silicon steel piece 200 are followed holder 100 axial is arranged, and protrusion in the two axial terminal surfaces of holder 100 are out of the plane, refer to fig. 9.
Specifically, glue may be applied to both circumferential sides of the silicon steel block 200 and then may be interposed between two adjacent support plates 120 to improve the fixing effect.
The step (g) comprises: a limiting ring 300 is sleeved on the outer periphery of the supporting plate 120, so that the silicon steel block 200 is fixed between the circular plate 110 and the limiting ring 300, referring to fig. 8. To prevent the silicon steel block 200 from being radially thrown out against centrifugal force.
The stop collar 300 is formed by winding fibers, preferably carbon fibers.
The step (h) comprises: the connecting bodies 2002 on both axial end surfaces of the silicon steel block 200 are removed to insulate each layer of silicon steel sheet of the silicon steel block 200, referring to fig. 2 and 9.
The connecting body 2002 can be removed by laser or linear cutting, and the silicon steel block 200 is ensured to be flush with the two axial sides of the retainer 100 after cutting.
Further comprising after said step (h):
(j) and chemically treating the two axial end faces of the silicon steel block 200 after the connecting body 2002 is removed.
The chemical treatment can be acid washing and the like to remove burrs and the like, and each layer of silicon steel sheet is insulated to avoid eddy current and further influence the working performance of the motor.
Further comprising after said step (j):
and cleaning and rust-proof treatment are carried out on the two axial end faces of the silicon steel block 200 subjected to chemical treatment, so that the service life of the rotor disc is prolonged.
To sum up, the disc body 2001 is formed by winding a continuous silicon steel sheet, and a plurality of the connectors 2002 are connected to both axial end surfaces of the disc body 2001 to form the silicon steel disc 2000, wherein a plurality of layers of silicon steel sheets arranged in a radial direction of the disc body 2001 are connected by the connectors 2002 without being scattered so as to be cut and formed into a plurality of silicon steel blocks 200 in the step (b), at this time, the silicon steel blocks 200 retain the connectors 2002 to both axial end surfaces of the silicon steel blocks 200, that is, the silicon steel blocks 200 formed by cutting are not scattered, and thereafter, the silicon steel blocks 200, the holder 100 and the retainer ring 300 are assembled into one body, and the connectors 2002 on both axial end surfaces of the silicon steel blocks 200 from which the connectors 2002 are removed, and chemical treatment is performed to remove burrs or the like so that the processed surfaces of the silicon steel sheets are not connected to each other, so as to insulate each silicon steel sheet of the silicon steel block 200. Compared with the stamping die with different specifications required by the prior art, the forming efficiency is effectively improved, the cost is reduced, the motor is prevented from generating eddy current during working, the motor efficiency is low, the heating is overlarge, the problems that how the silicon steel sheet is formed to be shifted into a retainer and the radial limit and the like are solved, and the manufacturability of the motor is realized.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited by the embodiments, i.e. all equivalent changes or modifications made in the spirit of the present invention are still within the scope of the present invention.
Claims (10)
1. A method for forming a rotor disc of a disc-type switched reluctance motor comprises the following steps:
(a) providing a silicon steel disc (2000), wherein the silicon steel disc (2000) comprises a disc body (2001) and a plurality of connecting bodies (2002), the disc body (2001) is wound by continuous silicon steel sheets and is provided with a plurality of layers of silicon steel sheets which are arranged in the radial direction, and the connecting bodies (2002) are connected with the plurality of layers of silicon steel sheets which are arranged in the radial direction and are respectively positioned on two axial end faces of the disc body (2001);
(b) cutting the silicon steel disc (2000) along the circumferential direction to form a plurality of silicon steel blocks (200), and reserving the connecting body (2002) on two axial end faces of each silicon steel block (200);
(e) providing a retainer (100), wherein the retainer (100) comprises a circular plate (110) and a plurality of supporting plates (120), and the supporting plates (120) are connected to the outer periphery of the circular plate (110) at intervals;
(f) placing the silicon steel block (200) between two adjacent support plates (120) in such a manner that the two axial end faces of the silicon steel block (200) are arranged along the axial direction of the cage (100);
(g) a limiting ring (300) is sleeved on the outer periphery of the supporting plate (120) so that the silicon steel block (200) is fixed between the circular plate (110) and the limiting ring (300);
(h) and removing the connecting bodies (2002) on the two axial end faces of the silicon steel block (200) so as to insulate each layer of silicon steel sheet of the silicon steel block (200).
2. The method of molding a rotor disk of a disk-type switched reluctance motor according to claim 1, wherein the step (a) further comprises the steps of:
(a1) winding a continuous silicon steel sheet to form the disc body (2001);
(a2) a plurality of the connection bodies (2002) are welded to both axial end surfaces of the disc body (2001) to connect a plurality of layers of silicon steel sheets arranged in a radial direction.
3. The method for forming a rotor disk of a disk-type switched reluctance motor according to claim 1, further comprising, after the step (h):
(j) and chemically treating the two axial end faces of the silicon steel block (200) after the connector is removed.
4. The method for forming a rotor disc of a disc-type switched reluctance motor according to claim 1, further comprising the steps of, between the step (b) and the step (e):
(c) and respectively processing two circumferential sides of the silicon steel block (200) to form inwards-recessed silicon steel guide parts (210).
5. The method for forming a rotor disc of a disc-type switched reluctance motor according to claim 4, further comprising the steps of, between the step (c) and the step (e):
(d) chemically treating the silicon steel blocks (200) to form both circumferential sides of the silicon steel guide (210).
6. The method for molding a rotor disc of a disc-type switched reluctance motor according to claim 4, wherein the retainer (100) is laminated by a base material (1000), the base material (1000) has a circular plate portion (1100) and a plurality of support plate portions (1200), and the step (e) further comprises the steps of:
(e1) the plurality of layers of the circular plate portion (1100) are laminated to form the circular plate (110), and the plurality of layers of the supporting plate portion (1200) are laminated to form the supporting plate (120).
7. Method for forming a rotor disc for a disc-type switched reluctance machine according to claim 6, wherein the support plate (120) has an upper zone (1201), a middle zone (1202) and a lower zone (1203) arranged axially along the cage (100), the circumferential dimension of the support plate portion (1200) located in the middle zone (1202) being greater or smaller than the circumferential dimension of the support plate portion (1200) located in the upper zone (1201) and the lower zone (1202), respectively, so that the middle zone (1202) forms the support guides (121) cooperating with the silicon steel guides (210).
8. The method for molding a rotor disc of a disc-type switched reluctance motor according to claim 1, wherein a distance between both axial end surfaces of the silicon steel block (200) is greater than an axial dimension of the holder (100), and further, in the step (f), both axial end surfaces of the silicon steel block (200) protrude outward beyond both axial end surfaces of the holder (100).
9. The method for forming a rotor disc of a disc-type switched reluctance motor according to claim 3 or 5, wherein the chemical treatment includes acid washing.
10. The method for forming a rotor disk of a disk-type switched reluctance motor according to claim 3, further comprising, after the step (j):
and performing rust prevention treatment on the two axial end faces of the silicon steel block (200) subjected to chemical treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111201310.6A CN113941661B (en) | 2021-10-15 | 2021-10-15 | Method for forming rotor disc of disc type switch reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111201310.6A CN113941661B (en) | 2021-10-15 | 2021-10-15 | Method for forming rotor disc of disc type switch reluctance motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113941661A true CN113941661A (en) | 2022-01-18 |
| CN113941661B CN113941661B (en) | 2024-03-05 |
Family
ID=79329993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111201310.6A Active CN113941661B (en) | 2021-10-15 | 2021-10-15 | Method for forming rotor disc of disc type switch reluctance motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113941661B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10256066A (en) * | 1997-03-13 | 1998-09-25 | Nkk Corp | Winding core with improved iron loss characteristic and its manufacturing method |
| JP2005278322A (en) * | 2004-03-25 | 2005-10-06 | Nissan Motor Co Ltd | Manufacturing method of core |
| CN101150006A (en) * | 2006-09-20 | 2008-03-26 | 张明德 | Amorphous alloy roll-core and its production method |
| CN101413551A (en) * | 2008-10-21 | 2009-04-22 | 洛阳轴研科技股份有限公司 | Bearing design and structure of double-interior diameter support high speed gyro motor |
| CN101847504A (en) * | 2009-03-26 | 2010-09-29 | 杭州彼爱琪电器有限公司 | Method for lowering remanence of current transformer |
| CN113422481A (en) * | 2021-07-06 | 2021-09-21 | 浙江盘毂动力科技有限公司 | Disk motor rotor, and manufacturing apparatus and manufacturing method |
-
2021
- 2021-10-15 CN CN202111201310.6A patent/CN113941661B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10256066A (en) * | 1997-03-13 | 1998-09-25 | Nkk Corp | Winding core with improved iron loss characteristic and its manufacturing method |
| JP2005278322A (en) * | 2004-03-25 | 2005-10-06 | Nissan Motor Co Ltd | Manufacturing method of core |
| CN101150006A (en) * | 2006-09-20 | 2008-03-26 | 张明德 | Amorphous alloy roll-core and its production method |
| CN101413551A (en) * | 2008-10-21 | 2009-04-22 | 洛阳轴研科技股份有限公司 | Bearing design and structure of double-interior diameter support high speed gyro motor |
| CN101847504A (en) * | 2009-03-26 | 2010-09-29 | 杭州彼爱琪电器有限公司 | Method for lowering remanence of current transformer |
| CN113422481A (en) * | 2021-07-06 | 2021-09-21 | 浙江盘毂动力科技有限公司 | Disk motor rotor, and manufacturing apparatus and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113941661B (en) | 2024-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2019063845A (en) | Rotor core manufacturing method | |
| JP2006353013A (en) | Manufacturing method for rotating electric machine stator | |
| CN113941661A (en) | Method for forming rotor disc of disc type switch reluctance motor | |
| US20220060075A1 (en) | Production method for a hairpin coil | |
| EP2781714B1 (en) | Method for manufacturing drive plate of electromagnetic-fan clutch, and manufactured drive plate | |
| CN114285199A (en) | Reluctance type axial flux motor rotor and forming method | |
| CN212278001U (en) | Rotor disc of disc type motor | |
| CN113612358B (en) | Forming method of disc type motor rotor | |
| JPH09308145A (en) | Stator core of motor and manufacture thereof | |
| JP5484130B2 (en) | Manufacturing method and manufacturing apparatus of laminated iron core | |
| JP5186467B2 (en) | Rotating electric machine stator core | |
| JPS58165640A (en) | Laminated core of rotary electric machine | |
| JP5598062B2 (en) | Manufacturing method of low iron loss rotary core | |
| JP4449184B2 (en) | Magnetic bearing structure and manufacturing method thereof | |
| US5768763A (en) | Method and apparatus for grooving on rotor | |
| JPS63144731A (en) | Tooth structure of core for rotary electric machine | |
| CN107877105B (en) | Belt pulley and manufacturing method thereof | |
| US3588561A (en) | Dynamoelectric machine stator and laminations for use in same | |
| JP3544114B2 (en) | Manufacturing method of stepping motor | |
| CN114665636A (en) | Rotor of axial magnetic field motor and manufacturing method thereof | |
| JP2006025552A (en) | Rotating electric machine and manufacturing method of rotor of rotating electric machine | |
| CN219960234U (en) | Combined stator core | |
| JP6988631B2 (en) | Stator core and motor | |
| CN210380436U (en) | Synchronous motor rotor | |
| CN113612326B (en) | Double-air-gap motor rotor structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |