CN106533127B - Permanent magnet magnetic poles alternately arranged and symmetrically arranged double-magnetic wheel non-contact forward driving device - Google Patents
Permanent magnet magnetic poles alternately arranged and symmetrically arranged double-magnetic wheel non-contact forward driving device Download PDFInfo
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- CN106533127B CN106533127B CN201611081506.5A CN201611081506A CN106533127B CN 106533127 B CN106533127 B CN 106533127B CN 201611081506 A CN201611081506 A CN 201611081506A CN 106533127 B CN106533127 B CN 106533127B
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- 230000005389 magnetism Effects 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 6
- 230000016507 interphase Effects 0.000 claims description 4
- 238000004088 simulation Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K53/00—Alleged dynamo-electric perpetua mobilia
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The utility model provides a permanent magnetism magnetic pole alternate arrangement symmetrical arrangement double magnetic wheel non-contact drive arrangement that advances which characterized in that: the device comprises a guide rail and permanent magnet wheels, wherein the two permanent magnet wheels are distributed above and below the guide rail, the permanent magnet wheels are not contacted with the guide rail, and the upper side and the lower side of the guide rail are racks with cylindrical tooth shapes or arc-shaped radial sections. Meanwhile, a new scheme is provided for the driving mode of the dust-free workshop conveying system.
Description
Technical Field
The invention relates to a double-magnetic wheel non-contact forward driving device with permanent magnetic poles arranged alternately and symmetrically, belonging to the technical field of electromechanical integration.
Background
In the background technology, the permanent magnets on the permanent magnet wheels are in a rack shape, the arrangement sequence is consistent, and the data obtained in the simulation experiment have larger phase difference with the theoretical calculation. The four vertex angles of the tooth-shaped permanent magnets influence the force, so that the force of the permanent magnet wheel is unstable.
The existing transmission device has double-gear rack transmission, but the existing gear rack structure can not completely eliminate the vertical component force in the transmission chain, can not meet the requirements, and has the defects of friction, greasy dirt, abrasion, heating, noise and the like, and is not suitable for working spaces such as dust-free, constant temperature, noise-free and the like. The magnetic levitation technology is widely applied to various fields of society, and has the advantages of working in working spaces such as dust-free, constant temperature, noise-free and the like.
Disclosure of Invention
The invention aims to: the invention provides a non-contact forward driving device with two magnetic wheels symmetrically arranged at intervals of permanent magnetic poles, which aims to solve the vertical component force existing in the traditional gear rack and solve the problem of uneven stress of the permanent magnetic wheels.
The technical scheme is as follows: the invention is realized by the following technical scheme:
the utility model provides a permanent magnetism magnetic pole alternate arrangement symmetrical arrangement double magnetic wheel non-contact drive arrangement that advances which characterized in that: the device comprises a guide rail and permanent magnet wheels, wherein the two permanent magnet wheels are distributed above and below the guide rail, the permanent magnet wheels are not contacted with the guide rail, racks with cylindrical tooth shapes or arc-shaped radial sections are arranged on the upper side and the lower side of the guide rail, a plurality of permanent magnets are arranged on the permanent magnet wheels along the circumferential direction, the permanent magnets are alternately arranged, namely, the magnetizing directions of two adjacent permanent magnets are opposite, and the two permanent magnet wheels are symmetrically arranged on the two sides of the guide rail.
The cross section of each convex tooth of the guide rail in the diameter direction is semicircular, the radius is the same, and the groove width of the groove formed between the adjacent convex teeth is the same as the tooth width of the convex teeth.
The permanent magnets are 8, and the 8 permanent magnets are uniformly distributed along the circumferential direction of the permanent magnet wheel.
The permanent magnet is cylindrical, and the axial direction of the cylindrical permanent magnet is parallel to the axle center of the cylindrical or semi-cylindrical teeth of the guide rail.
The permanent magnet is radial magnetizing.
The cylindrical or semi-cylindrical teeth are uniformly distributed on two sides of the guide rail.
When the lower permanent magnet wheel is static, the uppermost permanent magnet block and the convex teeth of the corresponding rail form a certain deflection angle beta, and when the upper permanent magnet wheel is static, the lowermost permanent magnet block and the convex teeth of the corresponding rail form a certain deflection angle alpha, and the deflection angle directions of the two driving wheels are the same, so that the slip is reduced.
The advantages and effects: the invention provides a double-magnetic wheel non-contact forward driving device with permanent magnetic poles arranged alternately and symmetrically, permanent magnets are uniformly embedded in grooves of the permanent magnetic wheels, the permanent magnetic wheels are connected with a servo motor through a transmission unit, a fixed iron guide rail which is round and is not provided with permanent magnets is arranged above the permanent magnetic wheels, and when the motor drives the permanent magnetic wheels to rotate, the permanent magnets and convex teeth of the guide rail are attracted mutually to generate forward driving force. Because the guide rail is fixed, the driving device can drive the system to do linear motion, and the motion speed and direction of the system can be controlled by controlling the rotation speed and the steering of the servo motor. Because two permanent magnets which are vertically symmetrical are used, the whole stress of the permanent magnets can offset the stress in the radial direction, and the condition of weakness in the radial direction is truly realized. The permanent magnets arranged at intervals have the advantages of effectively eliminating interference force between the magnets and enabling the permanent magnet wheel to be stressed uniformly. The invention can improve the driving characteristic of the device by optimizing the permanent magnet wheel and the guide rail structure, compared with the prior similar invention, the invention can completely eliminate the tip stress of the rack-shaped guide rail due to changing the shape of the guide rail, simultaneously changes the permanent magnets with consistent arrangement sequence into alternate arrangement, has opposite magnetizing directions of two adjacent permanent magnets, and can effectively eliminate the magnetic interference between the convex teeth of the adjacent guide rail.
In the forward driving device, a large interference force in the vertical direction is generated between the permanent magnet wheel and the guide rail convex teeth, and the driving force in the horizontal direction is small, so that aiming at the phenomenon, the structure of the driving device is improved to overcome the interference of the interference force in the vertical direction on the driving device in the running process and enhance the horizontal driving force.
In the structure of the original driving device, an iron guide rail rack is fixed, a servo motor drives a permanent magnet wheel to move right below the guide rail rack, so that the permanent magnet wheel is only subjected to upward magnetic force in the vertical direction, and in order to solve the problem, a non-contact driving device shown in the figure 1 is designed, the iron guide rail rack is fixed, two servo motors are respectively and directly connected with the two permanent magnet wheels, the two servo motors are symmetrically arranged at two positions above and below the guide rail rack, bar-shaped permanent magnets are uniformly embedded in grooves of the permanent magnet wheel, the distance between guide rail teeth is the same as that between two permanent magnet wheel grooves, and the permanent magnets on the two permanent magnet wheels are opposite to guide rail convex teeth, but have a certain distance difference in the horizontal direction.
The novel driving realization method and the corresponding device structure are provided, so that the driving efficiency is improved, the gap in a transmission chain can be completely eliminated, the operation cost is reduced, the energy is saved, the environment is protected, and the advantage of low cost is more obvious because the guide rail is an iron part and does not contain a permanent magnet part during long-distance conveying. Meanwhile, a new scheme is provided for the driving mode of the dust-free workshop conveying system.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a perspective view of the structure of the present invention;
FIG. 3 is a graph showing simulation data for a permanent magnet having a rectangular parallelepiped shape;
FIG. 4 is semi-cylindrical permanent magnet simulation data;
fig. 5 is experimental data of a semi-cylindrical permanent magnet.
The specific embodiment is as follows: the invention is further described with reference to the accompanying drawings:
the device comprises a guide rail 1 and permanent magnet wheels 2, wherein the two permanent magnet wheels 2 are distributed above and below the guide rail 1, the permanent magnet wheels 2 are not contacted with the guide rail 1, racks with cylindrical tooth shapes or arc-shaped radial sections are arranged on the upper side and the lower side of the guide rail 1, a plurality of permanent magnets 3 are arranged on the permanent magnet wheels 2 along the circumferential direction, the permanent magnets 3 are alternately arranged, namely, the magnetizing directions of two adjacent permanent magnets 3 are opposite, and the two permanent magnet wheels 2 are symmetrically arranged on the two sides of the guide rail 1.
The cross section of each convex tooth in the diameter direction of the guide rail 1 is semicircular, the radius is the same, and the groove width of the groove formed between the adjacent convex teeth is the same as the tooth width of the convex teeth.
The number of the permanent magnets 3 is 8, and the 8 permanent magnets 3 are uniformly distributed along the circumferential direction of the permanent magnet wheel 2.
The permanent magnet 3 has a cylindrical shape, and the axial direction of the cylindrical permanent magnet 3 is parallel to the axial center of the cylindrical or semi-cylindrical teeth of the guide rail 1.
The permanent magnet 3 is magnetized in the radial direction.
The cylindrical or semi-cylindrical teeth are evenly distributed on both sides of the guide rail 1.
The device also comprises a servo motor 5, wherein the servo motor is connected with the permanent magnet wheel through a transmission unit, and the guide rail is an iron guide rail; the permanent magnet on the permanent magnet wheel is cylindrical, and compared with the former rack shape, the circular permanent magnet ensures that the stress is more stable. The two permanent magnet wheels are symmetrically arranged relative to the iron guide rail, so that the force in the y direction is zero, and the y direction is the vertical direction in fig. 1. The uppermost permanent magnet blocks form a certain deflection angle beta with the convex teeth of the corresponding rail 1 when the lower permanent magnet wheel is static, and the lowermost permanent magnet blocks form a certain deflection angle alpha with the convex teeth of the corresponding rail 1 when the upper permanent magnet wheel is static, and the deflection angles of the two driving wheels are the same in direction (clockwise deflection or anticlockwise deflection |) as shown in fig. 1, so that the slip is reduced. The angle is formed by taking a lower permanent magnet wheel as an example, leading a vertical line from the center of the convex tooth of the guide rail 1 nearest to the uppermost permanent magnet block to the plane of the axis of the driving wheel 2 to form an intersection point I, and then leading an oblique line from the intersection point I to the center of the uppermost permanent magnet block 3 of the driving wheel 2, wherein the included angle between the oblique line and the vertical line is a deflection angle beta, and the same applies above.
The convex teeth of the guide rail are semicircular, the groove widths of the grooves formed between the convex teeth are identical to the tooth widths of the convex teeth, the height of the convex teeth of the guide rail protruding out of the guide rail is identical to the height of the permanent magnets protruding out of the permanent magnets in the permanent magnets, and the axial thickness of the convex teeth of the guide rail is identical to the axial thickness of the permanent magnets in the permanent magnets (the axial thickness of the convex teeth of the guide rail can be identical to the axial thickness of the guide rail, and the axial thickness of the permanent magnets in the permanent magnets can be identical to the axial thickness of the permanent magnets, as shown in fig. 2), so that attractive force generated by the permanent magnets and the iron guide rail is mainly acted on the convex teeth of the guide rail, the horizontal slip generated when the convex teeth of the iron guide rail 1 and the permanent magnets on the permanent magnets work is reduced, and the horizontal movement of the permanent magnets is facilitated.
The permanent magnet wheel main body is made of aluminum alloy, grooves are uniformly distributed on the outer circumferential surface of the permanent magnet wheel at intervals, and circular permanent magnets are embedded in the grooves.
As shown in fig. 1, the two driving wheels 2, 3 are respectively arranged above and below the iron guide rail 1, and are not in contact with each other and are symmetrical relative to the rack, so that the two driving wheels generate the maximum driving force under the condition of not being attracted. The iron rail 1 is a circular iron member without permanent magnets.
The guide rail convex teeth are semi-cylindrical, the groove width of the guide rail convex teeth is the same as the tooth width of the convex teeth, and the width of the guide rail is equal to the width of the permanent magnet wheels right below.
The permanent magnet wheel main body is made of non-magnetic aluminum alloy, grooves are uniformly distributed on the outer circumferential surface of the permanent magnet wheel at intervals, and circular permanent magnets are embedded in the grooves. The tooth space of the iron guide rail 1 is equal to the permanent magnet wheel groove space. The permanent magnet wheel is directly connected with the servo motor 5 through the transmission shaft or is connected with the bearing seat through the coupler, the mode is used for occasions with larger driving force or high rigidity requirement, horizontal slip exists between the permanent magnet on the permanent magnet wheel and the convex teeth of the guide rail during system operation, and the overload protection function can be achieved while the driving force is effectively generated.
The permanent magnet wheel and the guide rail are provided with a certain gap in the vertical direction, and traction force is provided by the mutual attraction of the magnet and the convex teeth of the guide rail. The permanent magnet wheel is in non-contact with the guide rail, so that the device has longer service life.
The permanent magnet magnetic pole interphase symmetrically arranged double-magnetic wheel non-contact advancing driving device can be used for a permanent magnet suspension dust-free conveying system. In the figure, the guide rail 1 is made of magnetic conductive material and is fixed above the running path, and the rail can be paved according to actual requirements. The teeth of the guide rail are round or semicircular, the groove width of the guide rail is the same as the tooth width of the convex teeth, and the width of the guide rail is equal to the width of the permanent magnet wheel right below the guide rail. The permanent magnet wheel is made of non-magnetic aluminum alloy material, the transmission shaft is driven by the servo motor to rotate, permanent magnets are embedded on the outer circumferential surface of the permanent magnet wheel at equal intervals, the intervals are the same as the tooth width of the upper guide rail, and the permanent magnets correspond to the guide rail convex teeth. A certain gap exists between the permanent magnet wheel and the guide rail, so that the permanent magnet wheel and the guide rail are prevented from being contacted. When the servo motor drives the permanent magnet wheel to rotate, the driving is realized through the attractive force between the permanent magnet group and the guide rail. Because the guide rail is fixed, the driving device can drive the system to do linear motion, and the motion speed and direction of the system can be further controlled by controlling the rotation speed and the steering of the servo motor. The reverse can of course be performed even if the drive is fixed and the guide rail is moved.
As shown in fig. 1: the rotating direction of the upper permanent magnet wheel is clockwise, the lower permanent magnet wheel is anticlockwise, and the advancing directions of the upper permanent magnet wheel and the lower permanent magnet wheel are both horizontal and rightward. In the figure:α=βair gapL 1 =L 2 Force ofFx 1 =Fx 2 Force ofFy 1 =Fy 2 The method comprises the steps of carrying out a first treatment on the surface of the Because the y-direction forces of the two permanent magnet wheels are the same and opposite in direction, the two permanent magnet wheels are provided with the same and opposite directionsFy=Fy1-Fy2=0. The forces in the X direction are of the same magnitude and opposite direction, and therefore,Fx=Fx 1 +Fx 2 =2Fx 1 =2Fx 2 。
fig. 3 is a graph showing simulation data of a rectangular parallelepiped permanent magnet, fig. 4 is semi-cylindrical permanent magnet simulation data, and fig. 5 is semi-cylindrical permanent magnet experimental data. Fig. 4, fig. 5 may be compared to determine that the simulation results are correct. Fig. 3 and 4 show that the force applied by the semi-cylindrical permanent magnet is more stable.
The invention is based on the linear driving principle, has convenient maintenance, simple structure, environmental protection, energy saving and low cost.
Claims (4)
1. The utility model provides a permanent magnetism magnetic pole alternate arrangement symmetrical arrangement double magnetic wheel non-contact drive arrangement that advances which characterized in that: the device comprises a guide rail (1) and permanent magnet wheels (2), wherein the two permanent magnet wheels (2) are distributed above and below the guide rail (1), the permanent magnet wheels (2) are not contacted with the guide rail (1), and racks formed by convex teeth with semi-cylindrical tooth shapes are arranged on the upper side and the lower side of the guide rail (1); the cross section of each convex tooth of the guide rail (1) in the diameter direction is semicircular, the radius is the same, and the groove width of a groove formed between adjacent convex teeth is the same as the tooth width of the convex tooth; the permanent magnet (3) is cylindrical, and the axial direction of the cylindrical permanent magnet (3) is parallel to the axle center of the semi-cylindrical teeth of the guide rail (1); the semi-cylindrical teeth are uniformly distributed on two sides of the guide rail (1); a plurality of permanent magnets (3) are arranged on the permanent magnet wheel (2) along the circumferential direction, the plurality of permanent magnets (3) are arranged alternately, namely, the magnetizing directions of two adjacent permanent magnets (3) are opposite, and the two permanent magnet wheels (2) are symmetrically arranged at two sides of the guide rail (1);
the permanent magnet wheel (2) is connected with the servo motor through a transmission unit;
the guide rail (1) is an iron guide rail; the guide rail (1) is fixed;
when the lower permanent magnet wheel is static, the uppermost permanent magnet block and the corresponding convex tooth of the guide rail (1) form a certain deflection angle beta, and when the upper permanent magnet wheel is static, the lowermost permanent magnet block and the corresponding convex tooth of the guide rail (1) form a certain deflection angle alpha, and the deflection angles of the two permanent magnet wheels are the same.
2. The permanent magnet pole inter-phase symmetrically arranged double magnetic wheel non-contact forward driving device according to claim 1, wherein: the number of the permanent magnets (3) is 8, and the 8 permanent magnets (3) are uniformly distributed along the circumferential direction of the permanent magnet wheel (2).
3. The permanent magnet pole inter-phase symmetrically arranged double magnetic wheel non-contact forward driving device according to claim 1, wherein: the permanent magnet (3) is magnetized in radial direction.
4. The permanent magnet pole inter-phase symmetrically arranged double magnetic wheel non-contact forward driving device according to claim 1, wherein: the height of the protruding teeth of the guide rail protruding from the guide rail is the same as the height of the permanent magnets protruding from the permanent magnet wheels in the permanent magnet wheels, and the axial thickness of the protruding teeth of the guide rail is the same as the axial thickness of the permanent magnets in the permanent magnet wheels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081506.5A CN106533127B (en) | 2016-11-30 | 2016-11-30 | Permanent magnet magnetic poles alternately arranged and symmetrically arranged double-magnetic wheel non-contact forward driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081506.5A CN106533127B (en) | 2016-11-30 | 2016-11-30 | Permanent magnet magnetic poles alternately arranged and symmetrically arranged double-magnetic wheel non-contact forward driving device |
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| Publication Number | Publication Date |
|---|---|
| CN106533127A CN106533127A (en) | 2017-03-22 |
| CN106533127B true CN106533127B (en) | 2023-11-21 |
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| CN101534044A (en) * | 2008-03-14 | 2009-09-16 | 刘新广 | Magnetic rotation conversion straight-moving mechanism |
| CN101656458A (en) * | 2008-08-24 | 2010-02-24 | 刘忠臣 | Linear permanent magnet driver and magnetic levitation vehicle rail system |
| CN102647049A (en) * | 2012-04-20 | 2012-08-22 | 东北大学 | Permanent magnetic gear transmission device from rotary transmission to linear transmission |
| CN103825424A (en) * | 2014-03-11 | 2014-05-28 | 天津工业大学 | Barrel-type hybrid permanent magnet eddy-current coupler |
| CN206481208U (en) * | 2016-11-30 | 2017-09-08 | 沈阳工业大学 | Permanent magnetism magnetic pole is spaced to be arranged symmetrically double magnet-wheel noncontact forward drive devices |
-
2016
- 2016-11-30 CN CN201611081506.5A patent/CN106533127B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005094954A (en) * | 2003-09-18 | 2005-04-07 | Satoru Aritaka | Kinetic energy accelerating and amplifying device |
| JP2006034014A (en) * | 2004-07-16 | 2006-02-02 | Shin Etsu Chem Co Ltd | Linear motor for machine tool |
| CN101534044A (en) * | 2008-03-14 | 2009-09-16 | 刘新广 | Magnetic rotation conversion straight-moving mechanism |
| CN101656458A (en) * | 2008-08-24 | 2010-02-24 | 刘忠臣 | Linear permanent magnet driver and magnetic levitation vehicle rail system |
| CN102647049A (en) * | 2012-04-20 | 2012-08-22 | 东北大学 | Permanent magnetic gear transmission device from rotary transmission to linear transmission |
| CN103825424A (en) * | 2014-03-11 | 2014-05-28 | 天津工业大学 | Barrel-type hybrid permanent magnet eddy-current coupler |
| CN206481208U (en) * | 2016-11-30 | 2017-09-08 | 沈阳工业大学 | Permanent magnetism magnetic pole is spaced to be arranged symmetrically double magnet-wheel noncontact forward drive devices |
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| CN106533127A (en) | 2017-03-22 |
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