CN218102932U - Double-layer winding permanent magnet synchronous linear motor - Google Patents
Double-layer winding permanent magnet synchronous linear motor Download PDFInfo
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- CN218102932U CN218102932U CN202222438600.9U CN202222438600U CN218102932U CN 218102932 U CN218102932 U CN 218102932U CN 202222438600 U CN202222438600 U CN 202222438600U CN 218102932 U CN218102932 U CN 218102932U
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Abstract
The utility model provides a double-layer winding permanent magnet synchronous linear motor, which comprises two primary windings and a secondary winding, wherein the two primary windings are arranged in parallel, the primary winding comprises a stator core and an armature winding, and the armature winding is a double-layer winding; the two primary electromagnetic windings are oppositely arranged; the secondary is arranged between the two primary stages and is parallel to the primary stages; the secondary comprises a rotor plate, and the side surfaces of the rotor plate facing the two primary sides are respectively provided with a plurality of permanent magnets. The utility model discloses a elementary weak point is in the secondary, effectively reduces winding copper and decreases, reduces calorific capacity, and elementary being located secondary both sides is favorable to the heat dissipation, and required material still less has reduced manufacturing cost moreover.
Description
Technical Field
The utility model relates to a synchronous linear electric motor of double-deck winding permanent magnetism, the utility model belongs to the technical field of linear electric motor.
Background
The linear motor is a device for converting electric energy into linear motion kinetic energy, and compared with the traditional conversion device, the linear motor has less transmission part for converting rotary motion into linear motion, and has wide application prospect in the fields of traffic, metallurgy, precision machining and the like.
The short-stroke high-frequency working condition of shaking table screening of a certain company at present, original drive mechanism is for rotating electrical machines join in marriage the cam structure to realize reciprocal linear motion, there is the unable regulation of working condition, can not make ore dressing efficiency best scheduling problem through changing stroke or frequency. The existing linear motor is supported by guide rail sliding blocks, and the sliding blocks and the guide rails are seriously abraded under the working condition of short stroke and high frequency because a single-side linear motor has normal force.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a simple structure, with low costs can effectively reduce winding copper loss, reduces calorific capacity's double winding permanent magnet synchronous linear electric motor.
The technical scheme of the utility model is that: a double-layer winding permanent magnet synchronous linear motor comprises two primary windings and a secondary winding, wherein the two primary windings are arranged in parallel, each primary winding comprises a stator core and an armature winding, and the armature winding is a double-layer winding; the two primary electromagnetic windings are oppositely arranged; the secondary is arranged between the two primary stages and is parallel to the primary stages; the secondary stage comprises a rotor plate, and the side faces of the rotor plate, facing the two primary stages, are respectively provided with a plurality of permanent magnets.
In the double-layer winding permanent magnet synchronous linear motor, the length of the secondary is longer than that of the primary.
In the double-layer winding permanent magnet synchronous linear motor, the side surface of an air gap of a stator core is provided with at least three coil slots, and the width of the coil slots at two ends is half of that of other coil slots; the coil slots at two ends are respectively provided with a coil side, and other coil slots are respectively provided with two coil sides.
In the double-layer winding permanent magnet synchronous linear motor, the stator core is formed by laminating silicon steel sheets.
In the double-layer winding permanent magnet synchronous linear motor, the side surfaces of the rotor plate facing the two primary sides are provided with a plurality of magnetic pole grooves, and each magnetic pole groove is internally provided with a permanent magnet; permanent magnets on each side surface of the rotor plate are alternately arranged in an N pole and an S pole along the motion direction; the permanent magnets on the two side faces of the rotor plate are in mirror symmetry, and the polarities of the permanent magnets on the two side faces of the rotor plate are opposite.
In the double-layer winding permanent magnet synchronous linear motor, the secondary side also comprises a cover plate; gaps between the permanent magnets on each side of the mover plate are filled with epoxy resin; the surface of the permanent magnet facing the primary part is covered with a cover plate made of stainless steel.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a elementary weak point is in the secondary, effectively reduces winding copper and decreases, reduces calorific capacity, and elementary being located secondary both sides is favorable to the heat dissipation, and required material still less has reduced manufacturing cost.
2. The utility model discloses a short stroke high frequency, secondary extra length is less for elementary, can not obviously increase cost.
3. The utility model discloses a normal force can be offset to double-deck primary structure, effectively reduces the frictional force on the slider guide rail, has improved the life of slider and guide rail.
Drawings
Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a primary structural schematic diagram of the present invention.
Fig. 4 is a secondary structural diagram of the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the present invention includes two primary 1 and one secondary 2, the length of the primary 1 is shorter than that of the secondary 2, the primary 1 is a stator, and the secondary 2 is a mover. The problem that the rotor is subjected to normal force can be solved by the double-layer primary 1 structure, large load can not be generated on the supporting part, abrasion of the sliding block and the guide rail is reduced when the sliding block guide rail structure is adopted, the service life of the sliding block and the guide rail is prolonged, and uniformity of air gaps on two sides is further guaranteed.
Two primary 1 are arranged in parallel, the primary 1 comprises a stator core 101 and an armature winding 102, and the armature winding 102 is a double-layer winding. A plurality of (at least three) coil slots are formed on the side surface of the air gap of the stator core 101, and the width Bs2 of the coil slots at two ends is half of the width Bs1 of other coil slots; the slot opening widths Bo2 of the coil slots at both ends are the same as the slot opening widths Bo1 of the other coil slots. The structure of the coil slot enables the stator core to be convenient for coil inserting of the windings at two ends under the condition that the size of the coil slot is not changed, and the width of the stator teeth can be changed, so that the overall length of the stator core is optimized, and the additional force caused by the side end effect is minimized. The coil slots at two ends are respectively provided with one coil side, and the other coil slots are respectively provided with two coil sides. The stator core 101 is formed by laminating silicon steel sheets; the electromagnetic windings of the two primary sides are oppositely arranged.
The secondary 2 is arranged between the two primary stages and is parallel to the primary 1. The secondary comprises a rotor plate 201 and a cover plate 203, a plurality of magnetic pole grooves are arranged on the side surfaces of the rotor plate 201 facing the two primary parts 1, and a permanent magnet 202 is arranged in each magnetic pole groove. The permanent magnets 202 on each side of the rotor plate 201 are alternately arranged in an N pole and an S pole along the moving direction. The permanent magnets on the two side faces of the rotor plate 201 are in mirror symmetry, and the polarities of the permanent magnets 202 on the two side faces of the rotor plate 201, which are at the same position and in the same direction, are opposite. The gaps between the permanent magnets 202 on each side of the mover plate are filled with epoxy. The surface of the permanent magnet facing the primary is covered with a cover plate 203, and the cover plate 203 is made of stainless steel.
Claims (6)
1. A double-layer winding permanent magnet synchronous linear motor comprises two primary windings and a secondary winding, and is characterized in that: the two primary windings are arranged in parallel, each primary winding comprises a stator core and an armature winding, and the armature windings are double-layer windings; the two primary electromagnetic windings are oppositely arranged; the secondary is arranged between the two primary stages and is parallel to the primary stages; the secondary comprises a rotor plate, and the side surfaces of the rotor plate facing the two primary sides are respectively provided with a plurality of permanent magnets.
2. The double-layer winding permanent magnet synchronous linear motor of claim 1, wherein: the length of the secondary is longer than the length of the primary.
3. The double-layer winding permanent magnet synchronous linear motor according to claim 1 or 2, characterized in that: the side surface of the air gap of the stator core is provided with at least three coil slots, and the width of the coil slots at two ends is half of the width of other coil slots; the coil slots at two ends are respectively provided with one coil side, and the other coil slots are respectively provided with two coil sides.
4. The double-layer winding permanent magnet synchronous linear motor according to claim 3, characterized in that: the stator core is formed by laminating silicon steel sheets.
5. The double-layer winding permanent magnet synchronous linear motor according to claim 1 or 2, characterized in that: the side surfaces of the rotor plate facing the two primary stages are provided with a plurality of magnetic pole grooves, and each magnetic pole groove is internally provided with a permanent magnet; permanent magnets on each side surface of the rotor plate are alternately arranged in an N pole and an S pole along the motion direction; the permanent magnets on the two side faces of the rotor plate are in mirror symmetry, and the polarities of the permanent magnets on the two side faces of the rotor plate in the same position and the same direction are opposite.
6. The double-layer winding permanent magnet synchronous linear motor of claim 5, wherein: the secondary further comprises a cover plate; gaps between the permanent magnets on each side of the mover plate are filled with epoxy resin; the permanent magnet covers a cover plate towards the primary surface, and the cover plate is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222438600.9U CN218102932U (en) | 2022-09-15 | 2022-09-15 | Double-layer winding permanent magnet synchronous linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222438600.9U CN218102932U (en) | 2022-09-15 | 2022-09-15 | Double-layer winding permanent magnet synchronous linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218102932U true CN218102932U (en) | 2022-12-20 |
Family
ID=84454482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222438600.9U Active CN218102932U (en) | 2022-09-15 | 2022-09-15 | Double-layer winding permanent magnet synchronous linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218102932U (en) |
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2022
- 2022-09-15 CN CN202222438600.9U patent/CN218102932U/en active Active
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