CN212033983U - Quadrupole direct current magnetic suspension reluctance type linear motor - Google Patents
Quadrupole direct current magnetic suspension reluctance type linear motor Download PDFInfo
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- CN212033983U CN212033983U CN201920623539.0U CN201920623539U CN212033983U CN 212033983 U CN212033983 U CN 212033983U CN 201920623539 U CN201920623539 U CN 201920623539U CN 212033983 U CN212033983 U CN 212033983U
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Abstract
The utility model discloses a quadrupole direct current magnetic suspension magnetic resistance type linear electric motor, including stator (1), active cell (2), its characterized in that: stator (1) is including three stator core (6) that the structure is the same, and is fixed through three connector (11) between stator core (6), the utility model discloses not only effectively solved traditional motor and increased to have the friction problem between transform mechanism and stator and the active cell, solved the vibration demagnetization that the permanent magnet exists again and the thermal demagnetization's of vibration demagnetizationA technical problem, andxandythe directional suspension force is not coupled, the control is simple, and the implementation is easy.
Description
Technical Field
The utility model relates to a motor manufacturing technology field, concretely relates to no friction, wearing and tearing, control is simple, and the operation is reliable, takes load capacity strong, and response speed is fast, compact structure, and the low power dissipation can produce the quadrupole direct current magnetic suspension reluctance type linear electric motor of the constant current source excitation of stabilizing radial suspension power.
Background
With the rapid development of automatic control technology and microcomputers, higher requirements are put forward on the positioning accuracy of a linear motion control system, and the conventional linear motion driving device consisting of a rotating motor and a set of conversion mechanisms has the defects that the transmission system is large in size, friction noise and transmission loss exist, the transmission efficiency is low, and the transmission mechanism is easy to damage, so that the transmission linear motor is difficult to meet the performance requirements of the modern linear motion control system.
The magnetic suspension linear motor realizes the rotor suspension non-contact support by utilizing the magnetic suspension technology, a certain air gap is always kept between the rotor and the stator, the frictional resistance between the stator and the rotor is eliminated, and the sensitivity, the rapidity and the follow-up property of the system are greatly improved. The magnetic suspension linear motor has the advantages of non-contact transmission force, almost zero mechanical friction loss, few faults, no maintenance, safe and reliable operation and long service life.
In a magnetic suspension linear motor, a permanent magnet is usually adopted to generate bias magnetic flux, a suspension winding generates suspension control magnetic flux, and the two interact to generate suspension force. However, the demagnetization of the permanent magnet under high temperature and vibration environment is difficult, which results in limited industrial application fields. Compare with tripolar formula AC magnetic suspension linear electric motor, do not have coupling, control simple between quadrupole formula structure x and the y direction suspension, and the direct current drive technique is ripe, easily realizes, consequently utility model an adopt quadrupole DC magnetic suspension linear electric motor of constant current source excitation has important realistic meaning.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a quadrupole direct current magnetic suspension reluctance type linear electric motor of constant current source excitation, the utility model discloses not only effectively solved traditional motor and increased the transformation mechanism, can not satisfy the problem of control system performance demand, effectively solved traditional direct current linear electric motor stator moreover and active cell oneself and have the friction problem to no coupling, control are simple between x and the y direction suspension, easily realize.
The utility model discloses a following technical scheme realizes:
the utility model provides a quadrupole direct current magnetic suspension reluctance type linear electric motor of constant current source excitation, includes stator (1), active cell (2), its characterized in that: the stator (1) comprises three stator cores (6) with the same structure, the stator cores (6) are fixed to four connectors (11) through positions X, Y, each stator core (6) comprises a suspension iron core (9) and four axial control iron cores (10) with the same radian, the inner wall of each suspension iron core (9) is fixed to the outer walls of the four axial control iron cores (10) into a whole through four magnetic isolation aluminum rings (8), four stator suspension teeth (13) protruding inwards are arranged on the inner wall of each suspension iron core (9) along the circumferential direction X, Y, constant current source windings (14) and suspension windings (15) are wound on the suspension iron cores in sequence along the radial direction, the suspension windings (15) in the X, Y direction are connected in series, the X-direction suspension windings (15) or the Y-direction suspension windings (15) on the adjacent suspension iron cores (9) are connected in series or in parallel, and are powered; two stator teeth (12) protruding inwards are arranged on the inner wall of each axial control iron core (10) at equal angles along the circumferential direction, and axial control windings (16) are correspondingly wound on the stator teeth;
the rotor (2) comprises a rotor shaft (3), M rotor cores (4) which are arranged along the axial direction are sleeved on the rotor shaft (3), four rotor suspension teeth (5) which penetrate through the rotor shaft (3) are arranged in the circumferential direction and the radial direction of X, Y directions of the M rotor cores (4), and eight rotor teeth (7) are uniformly arranged in the residual space on the circumferential surface of each rotor core (4).
The utility model discloses further technical improvement scheme is:
constant current source windings (14) wound on the stator suspension teeth (13) of the four stator cores (6) are connected in parallel or in series and are supplied with power by a direct current constant current source; and the suspension windings (15) wound on the stator suspension teeth (13) of the four stator iron cores (6) are connected in series or in parallel and are supplied with power by a direct-current power supply.
The utility model discloses further technical improvement scheme is:
the stator teeth (12) and the rotor teeth (7), the stator suspension teeth (13) and the rotor suspension teeth (5) are arranged correspondingly, and the connecting bodies (11) are arranged between the side walls of the suspension iron cores (9) corresponding to the adjacent stator suspension teeth (13).
The utility model discloses further technical improvement scheme is:
the adjacent stator suspension teeth (13) are all 90 degrees along the circumferential included angle, and two stator teeth (12) are arranged at equal angles.
The utility model discloses further technical improvement scheme is:
the adjacent rotor suspension teeth (5) are all 90 degrees along the circumferential included angle, and two rotor teeth (5) are arranged at equal angles.
The utility model discloses further technical improvement scheme is:
the width and the thickness of the stator teeth (12) and the rotor teeth (5) are both set to be A, the distance between adjacent stator iron cores (6) is also set to be A, the distance between adjacent rotor iron cores (4) is set to be 2A, M and A are set randomly according to the total axial movement distance and each axial movement distance, and M is a natural number larger than 3.
The utility model discloses further technical improvement scheme is:
the stator (1) and the rotor (2) are coaxial hollow cylindrical structures, and the rotor (2) is located inside the stator (1).
The utility model discloses further technical improvement scheme is:
the stator (1) and the rotor (2) are both made of magnetic materials, and the connector (11) is made of magnetic materials or non-magnetic materials. .
Compared with the prior art, the utility model, following obvious advantage has:
the stator suspension teeth of the stator of the utility model are respectively provided with a constant current source winding and a suspension winding, and the constant current source winding and the suspension winding are electrified and interact to generate radial suspension force in X and Y directions; the rotor non-contact suspension support is realized, the sensitivity, the rapidity and the follow-up property of the system are greatly improved, the mechanical friction loss is almost zero, the faults are few, the maintenance is free, the work is safe and reliable, and the service life is long.
Two, the utility model discloses X and Y direction unshakable in one's determination of active cell are for linking into four long banding active cell suspension teeth as whole, can produce reliable and stable radial suspension power when linear motion is done to the active cell.
Thirdly, the utility model discloses a separate magnetism aluminium block and separate unshakable in one's determination with axial control with the suspension, no coupling, independent control between linear motion control and the suspension control, control is simple, reliable.
Drawings
Fig. 1 is a side view of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a constant current source excitation magnetic field distribution diagram 1 of the present invention;
FIG. 4 is a schematic diagram of the suspension force generation in the X direction of the present invention 1;
FIG. 5 is a schematic diagram of the Y-direction levitation force generation of the present invention in FIG. 1;
fig. 6 is a constant current source excitation magnetic field distribution diagram 2 of the present invention;
FIG. 7 is a schematic diagram of the suspension force generation in the X direction of the present invention 2;
FIG. 8 is a schematic diagram of the Y-direction levitation force generation of the present invention shown in FIG. 2;
Detailed Description
The utility model discloses the principle based on is:
the principle of linear motion: at the initial position, the mth stator core 4 is aligned with the outer stator core 6, so that the right side of the middle stator core 6 is aligned with the left side of the M +1 th stator core 6, at this time, the axial control winding 16 in the outer stator core 6 is powered off, the axial control winding 16 in the middle stator core 6 is powered on, the mover 2 moves to the left a, the axial control winding 16 in the middle stator core 6 is powered off, the axial control winding 16 in the inner stator core 6 is powered on, the mover 2 moves to the left a continuously, and the process is repeated, so that the mover 2 moves to the left continuously; if a rightward motion is required, then the sequence of energization of the axial control winding 16 is reversed. If the rotor 2 is long, a plurality of stator cores 6 can be matched together for use to support the rotor 2 to stably suspend.
The present invention will be described in further detail with reference to the accompanying fig. 1-5 by way of specific embodiments.
The utility model discloses a stator 1 and active cell 2, active cell 2 includes active cell axle 3, M active cell iron core 4 along the axial range cup joints on the global of active cell axle 3, M active cell iron core is provided with in X and the Y direction and links as an organic whole, and extends 4 active cell suspension teeth 5 of whole active cell axial length, each active cell iron core all the other global on the equipartition have 8 active cell teeth 7; the stator 1 comprises three stator cores 6, the stator cores 6 are of a hollow cylindrical structure coaxial with the rotor 2, the rotor 2 is located at the inner ring of the stator 1, each stator core 6 is formed by connecting a suspension iron core 9 and a control iron core 10 into a whole through four magnetic isolation aluminum blocks 8, 2 stator teeth 12 are uniformly distributed on the inner periphery of each control iron core 10, 4 stator suspension teeth 13 are arranged in the X direction and the Y direction of the suspension iron core 9, a constant current source winding 14 and a suspension winding 15 are wound on each stator suspension tooth 13, and an axial control winding 16 is wound on each stator tooth 12; the stator teeth 12 and the stator suspension teeth 13 are arranged corresponding to the rotor teeth 7 and the rotor suspension teeth 5 one to one.
The width and the thickness of the stator teeth 12 and the mover teeth 7 are both A, the distance between the adjacent stator iron cores 6 is A, and the distance between the adjacent mover iron cores 4 is 2A.
In this embodiment, M is a natural number and M >3, the number of the mover cores 4 is much greater than the number of the stator cores 6, the number of the mover cores 4 depends on the axial length of the motor, and when the mover cores 4 are long, more than two stators 1 may be used together. The stator teeth 12 correspond to the rotor teeth 7 one by one, and the magnetic circuit is not saturated.
The suspension control magnetic circuit and the linear motion control magnetic circuit are isolated from each other, the suspension control magnetic flux and the excitation magnetic flux only pass through the stator suspension teeth 13 and the rotor suspension teeth 5 in the X and Y directions to form a closed loop, the axial linear motion is not influenced, and the control is simple.
The M rotor iron cores 4 are provided with rotor suspension teeth 5 which are connected into a whole and extend the whole rotor shaft 3 in the X and Y directions, so that stable and reliable radial suspension force is generated while the rotor 2 does linear motion.
The stator 1 and the rotor 2 are both made of magnetic conductive materials, and the connector 11 can be made of magnetic conductive materials or non-magnetic conductive materials.
First, the connecting body 11 is a non-magnetic conductive material.
The constant current source windings 14 on the left, middle and right stator cores 6 are reversely connected in series or in parallel and then supplied with power by a constant current source, as shown in fig. 3, and the suspension windings 15 in the same direction are connected in series or in parallel and then supplied with power by a direct current source, as shown in fig. 4 and 5.
The suspension principle of the present invention is illustrated by taking one of the stator cores 6 as an example:
the constant current source winding 14 is electrified to form closed constant current source magnetic fluxes in the stator iron core 6, the stator suspension teeth 13 and the rotor suspension teeth 5, as shown in fig. 3; energizing the Y-direction levitation winding to form a closed Y-direction levitation control magnetic flux, as shown in FIG. 4; the two magnetic fields of fig. 3 and 4 are superimposed on each other, and the magnetic fields weaken each other in the negative Y direction and strengthen each other in the positive Y direction, thereby generating a levitating force directed in the positive Y direction.
The X-direction suspension winding 15 is electrified to form closed X-direction suspension control magnetic flux, as shown in FIG. 5; the two magnetic fields of fig. 5 and 3 are superimposed on each other, and the magnetic fields weaken each other in the negative X direction and strengthen each other in the positive X direction, thereby generating a levitation force directed in the positive X direction.
And the connecting body 11 is made of a magnetic conductive material.
The constant current source winding 14 is electrified, and closed constant current source magnetic fluxes are formed in the stator suspension teeth 13 and the rotor suspension teeth 5 among the three stator cores 1, as shown in fig. 6; energizing the Y-direction levitation winding 15 to form a closed Y-direction levitation control flux, as shown in FIG. 7; the magnetic fields of fig. 6 and 7 are superimposed on each other, and the magnetic fields weaken each other in the negative Y direction and strengthen each other in the positive Y direction, thereby generating a levitating force directed in the positive Y direction.
The X-direction suspension winding 15 is electrified to form closed X-direction suspension control magnetic flux, as shown in FIG. 8; the magnetic fields of fig. 6 and 8 are superimposed on each other, and the magnetic fields weaken each other in the negative X direction and strengthen each other in the positive X direction, thereby generating a levitation force directed in the positive X direction.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a four poles direct current magnetic suspension reluctance type linear electric motor, includes stator (1), active cell (2), its characterized in that: the stator (1) comprises three stator cores (6) with the same structure, the stator cores (6) are fixed by four connecting bodies (11) positioned in the direction of X, Y, the stator iron core (6) comprises a suspension iron core (9) and four axial control iron cores (10) with the same radian, the inner wall of the suspension iron core (9) is respectively fixed with the outer walls of the four axial control iron cores (10) into a whole through four magnetic isolation aluminum rings (8), four stator suspension teeth (13) which protrude inwards are arranged on the inner wall of the suspension iron core (9) along the circumferential direction X, Y, a constant current source winding (14) and a suspension winding (15) are sequentially wound on the axial control iron core along the radial direction, the X, Y-direction suspension windings (15) are respectively connected in series, two stator teeth (12) protruding inwards are arranged on the inner wall of each axial control iron core (10) along the circumferential direction at equal angles, and an axial control winding (16) is correspondingly wound on the inner wall of each axial control iron core;
the rotor (2) comprises a rotor shaft (3), M rotor cores (4) which are arranged along the axial direction are sleeved on the rotor shaft (3), four rotor suspension teeth (5) which penetrate through the rotor shaft (3) are arranged on the circumference of the M rotor cores (4) along the radial direction X, Y, eight rotor teeth (7) are uniformly arranged in the residual space on the circumferential surface of each rotor core (4),
the suspension control magnetic circuit and the linear motion control magnetic circuit are isolated from each other, and the suspension control magnetic flux and the excitation magnetic flux only pass through the stator suspension teeth (13) and the rotor suspension teeth (5) in the X and Y directions to form a closed loop.
2. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1, characterized in that: constant current source windings (14) wound on the stator suspension teeth (13) of the four stator cores (6) are connected in parallel or in series and are supplied with power by a direct current constant current source; and the suspension windings (15) wound on the stator suspension teeth (13) of the four stator iron cores (6) are connected in series or in parallel and are supplied with power by a direct-current power supply.
3. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the stator teeth (12) and the rotor teeth (7), and the stator suspension teeth (13) and the rotor suspension teeth (5) are arranged correspondingly.
4. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the adjacent stator suspension teeth (13) are all 90 degrees along the circumferential included angle, and two stator teeth (12) are arranged at equal angles.
5. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the adjacent rotor suspension teeth (5) are all 90 degrees along the circumferential included angle, and two rotor teeth (7) are arranged at equal angles.
6. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the width and the thickness of the stator teeth (12) and the rotor teeth (7) are set to be A, the distance between adjacent stator iron cores (6) is also set to be A, the distance between adjacent rotor iron cores (4) is set to be 2A, M and A are set randomly according to the total axial movement distance and each axial movement distance, and M is a natural number larger than 3.
7. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the stator (1) and the rotor (2) are coaxial hollow cylindrical structures, and the rotor (2) is located inside the stator (1).
8. A quadrupole direct current magnetic levitation reluctance type linear motor according to claim 1 or 2, characterized in that: the stator (1) and the rotor (2) are both made of magnetic materials, and the connector (11) is made of magnetic materials or non-magnetic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623539.0U CN212033983U (en) | 2019-05-05 | 2019-05-05 | Quadrupole direct current magnetic suspension reluctance type linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920623539.0U CN212033983U (en) | 2019-05-05 | 2019-05-05 | Quadrupole direct current magnetic suspension reluctance type linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN212033983U true CN212033983U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920623539.0U Active CN212033983U (en) | 2019-05-05 | 2019-05-05 | Quadrupole direct current magnetic suspension reluctance type linear motor |
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| Country | Link |
|---|---|
| CN (1) | CN212033983U (en) |
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- 2019-05-05 CN CN201920623539.0U patent/CN212033983U/en active Active
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