CN104167900A - Linear rotation composite motion permanent magnetic coupler - Google Patents
Linear rotation composite motion permanent magnetic coupler Download PDFInfo
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- CN104167900A CN104167900A CN201410450127.3A CN201410450127A CN104167900A CN 104167900 A CN104167900 A CN 104167900A CN 201410450127 A CN201410450127 A CN 201410450127A CN 104167900 A CN104167900 A CN 104167900A
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- permanent magnet
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Abstract
The invention discloses a linear rotation composite motion permanent magnetic coupler. The linear rotation composite motion permanent magnetic coupler can achieve one-dimensional linear motion or rotating motion, and can also achieve linear motion and rotating motion at the same time. The linear rotation composite motion permanent magnetic coupler comprises a rotary shaft, an inner rotor and an outer rotor. The inner rotor can be connected with an output shaft of a prime motor. N-pole permanent magnets and S-pole permanent magnets are attached to the outer surface of the inner rotor in the peripheral direction. The N-pole permanent magnets and the S-pole permanent magnets are attached in the axis direction of the inner rotor. The outer rotor can be connected with a load driven by the outer rotor. N-pole permanent magnets and S-pole permanent magnets are attached to the inner surface of the outer rotor in the peripheral direction. The N-pole permanent magnets and the S-pole permanent magnets are attached in the axis direction of the outer rotor. The linear rotation composite motion permanent magnetic coupler can achieve linear motion, rotating motion and spiral motion without an intermediate conversion link, and has a high mechanical integration level and the flexible control characteristic, the structure of a drive system can be simplified, and system reliability is improved.
Description
Technical field
The present invention relates to a kind of straight line rotary composite movement permanent-magnet coupler, belong to and be applicable to contactless out-of-alignment variable speed drives occasion, belong to power transmission technical field.
Background technology
In fields such as industrial and agricultural production, national defence, Aeronautics and Astronautics, need transmission mechanism to realize the transmission of power, realize speed change simultaneously.According to the difference of application scenario, people develop various converting means or equipment meets above-mentioned requirements, such as chain, steel wire rope, driving-belt, screw mandrel, crank connecting link, slide block mechanism, cam ejection pin mechanism etc.In these converting means, each transmission mechanism is in contact with one another, and has brought the problems such as friction, vibration, noise, has reduced the transmission effect of system and the stability of transmission mechanism.
Permanent-magnet coupler is a kind of contactless transmission device, has good reliability, stable drive, life-span long, without frictional dissipation, without lubricated, without features such as greasy dirts, be applied to gradually the field of variable speed drives.Along with the complexity day by day of modern industry drive system, the requirement that drives control precision is improved constantly, a lot of occasions need to realize multidimensional and drive, coordinate to control, especially the requirement that some precision apparatus drive multiple degrees of freedom is more and more urgent, but the mode of the existing driving arrangement driving arrangement combinations that adopt many single-degree-of-freedoms realizes multidimensional and drives more, the problem of having brought some to be difficult to avoid: multiple driving arrangements have increased the volume and weight of system, multiple drive gaps have reduced the positioning precision of system.
Summary of the invention
Goal of the invention: for above-mentioned prior art, propose a kind of straight line rotary composite movement permanent-magnet coupler, can realize rectilinear motion, rotatablely move and screw.
Technical scheme: a kind of straight line rotary composite movement permanent-magnet coupler, comprise rotating shaft, internal rotor and external rotor, the axis hole of internal rotor is passed in rotating shaft, and tightens together with internal rotor, and the outer surface of internal rotor and the inner surface of external rotor respectively Surface Mount have permanent magnet; Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor outer surface, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor inner surface;
Internal rotor permanent-magnetic body comprises some internal rotor N utmost point permanent magnets and internal rotor S utmost point permanent magnet; Described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet are interspersed along internal rotor circumferencial direction; Meanwhile, described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet are interspersed along internal rotor axis direction;
Outer rotor permanent magnet comprises some external rotor N utmost point permanent magnets and external rotor S utmost point permanent magnet; Described external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet are interspersed along external rotor circumferencial direction; Meanwhile, described external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet are interspersed along external rotor axis direction.
Further, described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet and external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet are watt shape permanent magnet of radial magnetizing, and every corresponding central angle and the axial length of permanent magnet all equates.
A kind of straight line rotary composite movement permanent-magnet coupler, comprises rotating shaft, internal rotor and external rotor, and the axis hole of internal rotor is passed in rotating shaft, and tightens together with internal rotor, and the outer surface of internal rotor and the inner surface of external rotor respectively Surface Mount have permanent magnet; Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor outer surface, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor inner surface;
Described internal rotor permanent-magnetic body comprises some internal rotor N utmost point permanent magnets and internal rotor S utmost point permanent magnet, the central angle of described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet and axial length all equate, and distribute and arrange along internal rotor even circumferential, form even number ring shape permanent-magnet structure; Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; The permanent magnet of adjacent two circumference is successively along same circumferencial direction dislocation certain angle, the plane Z of a vertical described rotating shaft of definition, the projection of the permanent magnet of adjacent two circumference on described plane Z is along same even circumferential cross-distribution, and the central angle θ of described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet meets
wherein n is the permanent magnet sheet number on same circumference;
Described outer rotor permanent magnet comprises some external rotor N utmost point permanent magnets and external rotor S utmost point permanent magnet, the central angle of described external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet is all identical with central angle and the axial length of described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet with axial length, and distribute and arrange along external rotor even circumferential, form even number ring shape permanent-magnet structure; Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; The permanent magnet of adjacent two circumference is successively along same circumferencial direction dislocation certain angle, the projection of the permanent magnet of adjacent two circumference on described plane Z is along same even circumferential cross-distribution, and the central angle θ ' of described external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet meets
wherein n ' is the permanent magnet sheet number on same circumference.
Further, described internal rotor N utmost point permanent magnet and internal rotor S utmost point permanent magnet and external rotor N utmost point permanent magnet and external rotor S utmost point permanent magnet are watt shape permanent magnet of radial magnetizing.
Beneficial effect: the present invention proposes a kind of straight line rotary composite movement permanent-magnet coupler, comprise rotating shaft, internal rotor and external rotor, be pasted with N utmost point permanent magnet and S utmost point permanent magnet at the outer surface of internal rotor and the inner surface of external rotor; Wherein, along same circumference Surface Mount in the N on inner and outer rotors surface utmost point permanent magnet and S utmost point permanent magnet be interspersed, the permanent magnet on the inner and outer rotors surface in same axis height has formed an elementary cell that single-degree-of-freedom rotatablely moves, for rotatablely moving of permanent-magnet coupler provides condition; Along inner and outer rotors axis direction Surface Mount in the N on inner and outer rotors surface utmost point permanent magnet and S utmost point permanent magnet be interspersed, internal rotor N utmost point permanent magnet, S utmost point permanent magnet and external rotor N utmost point permanent magnet, S utmost point permanent magnet in same bus alignment in same bus alignment have formed a straight-line elementary cell of single-degree-of-freedom, for the rectilinear motion of permanent-magnet coupler provides condition.
The present invention proposes another kind of straight line rotary composite movement permanent-magnet coupler, comprise rotating shaft, internal rotor and external rotor, be along the circumferential direction pasted with N utmost point permanent magnet and S utmost point permanent magnet at the outer surface of internal rotor and the inner surface of external rotor; Wherein, wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; Permanent magnet between adjacent circumferential is successively along same circumferencial direction dislocation certain angle.The permanent magnet on the inner and outer rotors surface of the adjacent circumferential in same axis height has formed an elementary cell that single-degree-of-freedom rotatablely moves, for rotatablely moving of permanent-magnet coupler provides condition; Internal rotor N utmost point permanent magnet, S utmost point permanent magnet and external rotor N utmost point permanent magnet, S utmost point permanent magnet in same axis alignment in same axis alignment have formed a straight-line elementary cell of single-degree-of-freedom, for the rectilinear motion of permanent-magnet coupler provides condition.
Internal rotor is realized rectilinear motion, is rotatablely moved or screw under the driving of prime mover, and external rotor, under the traction of internal rotor, can be realized the motion identical with internal rotor.The machinery combination of comparing multiple single-degree-of-freedoms realizes multi-dimensional movement, and straight line rotary composite movement permanent-magnet coupler has higher mechanical integrated level and control characteristic flexibly, can simplify the structure of drive system, improves the reliability of system simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of straight line rotary composite movement permanent-magnet coupler;
Fig. 2 is the structural representation of permanent-magnet coupler internal rotor;
Fig. 3 is the structural representation of internal rotor in embodiment 2.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done further and explained.
Embodiment 1: as shown in Figure 1, a kind of straight line rotary composite movement permanent-magnet coupler, comprises rotating shaft 1, internal rotor 2 and external rotor 3, and rotating shaft 1 is through the axis hole of internal rotor 2, and tighten together with internal rotor 2, the inner surface of the outer surface of internal rotor 2 and external rotor 3 respectively Surface Mount has permanent magnet.Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor 2 outer surfaces, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor 3 inner surfaces.
In the present embodiment, as shown in Figure 2, internal rotor permanent-magnetic body comprises 4 and 8 internal rotor S utmost point permanent magnets 5 of 8 internal rotor N utmost point permanent magnets, and the central angle of every internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 correspondences and axial length all equate, and be watt shape permanent magnet of radial magnetizing.Internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 are interspersed along internal rotor circumferencial direction, every circle loop configuration has 2 N utmost point permanent magnets 4 and the internal rotor S utmost point permanent magnet 5 of cross-distribution, whole internal rotor forms 4 circle loop configuration vertically, and in each circle loop configuration, permanent magnet is two pairs of utmost points.Meanwhile, internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 are interspersed along internal rotor axis direction.
Outer rotor permanent magnet comprises 6 and 8 external rotor S utmost point permanent magnets 7 of 8 external rotor N utmost point permanent magnets, the central angle of every external rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 correspondences and axial length all central angle and the axial length corresponding with internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 equate, and are watt shape permanent magnet of radial magnetizing.External rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 are interspersed along external rotor circumferencial direction, and every circle loop configuration has 2 N utmost point permanent magnets 6 and the external rotor S utmost point permanent magnet 7 of cross-distribution, and whole internal rotor forms 4 circle loop configuration vertically.Meanwhile, external rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 are interspersed along external rotor axis direction.
Internal rotor realizes rectilinear motion under the driving of prime mover, rotatablely move or when screw, external rotor, under the traction of internal rotor, can be realized the motion identical with internal rotor.
Embodiment 2: a kind of straight line rotary composite movement permanent-magnet coupler, comprise rotating shaft 1, internal rotor 2 and external rotor 3, the axis hole of internal rotor 2 is passed in rotating shaft 1, and tightens together with internal rotor 2, and the inner surface of the outer surface of internal rotor 2 and external rotor 3 respectively Surface Mount has permanent magnet.Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor 2 outer surfaces, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor 3 inner surfaces.
As shown in Figure 3, internal rotor permanent-magnetic body comprises 4 and 4 internal rotor S utmost point permanent magnets 5 of 4 internal rotor N utmost point permanent magnets, the central angle of internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 and axial length all equate, and distribute and arrange along internal rotor even circumferential, formation even number ring shape permanent-magnet structure.The central angle of internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 is 90 °, 2 permanent magnets of same even circumferential distribution, and in each ring shape permanent-magnet structure, permanent magnet is a pair of utmost point.Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; In the present embodiment, the first circumference and the 3rd circumferential surface are internal rotor N utmost point permanent magnet 4, the second circumference and the 4th circumferential surface is internal rotor S utmost point permanent magnet 5; The permanent magnet of adjacent two circumference, successively along 90 ° of same circumferencial direction dislocation, defines the plane Z of a vertical described rotating shaft 1, and the projection of the permanent magnet of adjacent two circumference on plane Z is along same even circumferential cross-distribution.
Outer rotor permanent magnet comprises 6 and 4 external rotor S utmost point permanent magnets 7 of 4 external rotor N utmost point permanent magnets, the central angle of external rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 is all identical with central angle and the axial length of internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 with axial length, and distribute and arrange along external rotor even circumferential, form even number ring shape permanent-magnet structure.The central angle of internal rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 is 90 °, 2 permanent magnets of same even circumferential distribution, and in each ring shape permanent-magnet structure, permanent magnet is a pair of utmost point.Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; Wherein, the first circumference and the 3rd circumferential surface are external rotor N utmost point permanent magnet 6, the second circumference and the 4th circumferential surface is external rotor S utmost point permanent magnet 7; The permanent magnet of adjacent two circumference is successively along 90 ° of same circumferencial direction dislocation, and the projection of the permanent magnet of adjacent two circumference on described plane Z be along same even circumferential cross-distribution, and not overlapping.Wherein internal rotor N utmost point permanent magnet 4 and internal rotor S utmost point permanent magnet 5 and external rotor N utmost point permanent magnet 6 and external rotor S utmost point permanent magnet 7 are watt shape permanent magnet of radial magnetizing.Internal rotor realizes rectilinear motion under the driving of prime mover, rotatablely move or when screw, external rotor, under the traction of internal rotor, can be realized the motion identical with internal rotor equally.Straight line rotary composite movement permanent-magnet coupler in embodiment 2 structures, when the monolithic permanent magnet central angle θ in internal rotor is less than
time, the permanent magnet of adjacent two circumference leaves gap between the projection edge on described plane Z, and outer-rotor structure is in like manner.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. a straight line rotary composite movement permanent-magnet coupler, it is characterized in that: comprise rotating shaft (1), internal rotor (2) and external rotor (3), rotating shaft (1) is through the axis hole of internal rotor (2), and tighten together with internal rotor (2), the inner surface of the outer surface of internal rotor (2) and external rotor (3) respectively Surface Mount has permanent magnet; Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor (2) outer surface, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor (3) inner surface;
Internal rotor permanent-magnetic body comprises some internal rotor N utmost point permanent magnets (4) and internal rotor S utmost point permanent magnet (5); Described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) are interspersed along internal rotor circumferencial direction; Meanwhile, described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) are interspersed along internal rotor axis direction;
Outer rotor permanent magnet comprises some external rotor N utmost point permanent magnets (6) and external rotor S utmost point permanent magnet (7); Described external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) are interspersed along external rotor circumferencial direction; Meanwhile, described external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) are interspersed along external rotor axis direction.
2. a kind of straight line rotary composite movement permanent-magnet coupler according to claim 1, it is characterized in that: described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) and external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) are watt shape permanent magnet of radial magnetizing, every corresponding central angle and the axial length of permanent magnet all equates.
3. a straight line rotary composite movement permanent-magnet coupler, it is characterized in that: comprise rotating shaft (1), internal rotor (2) and external rotor (3), rotating shaft (1) is through the axis hole of internal rotor (2), and tighten together with internal rotor (2), the inner surface of the outer surface of internal rotor (2) and external rotor (3) respectively Surface Mount has permanent magnet; Wherein, Surface Mount is internal rotor permanent-magnetic body in the permanent magnet of internal rotor (2) outer surface, and Surface Mount is outer rotor permanent magnet in the permanent magnet of external rotor (3) inner surface;
Described internal rotor permanent-magnetic body comprises some internal rotor N utmost point permanent magnets (4) and internal rotor S utmost point permanent magnet (5), the central angle of described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) and axial length all equate, and distribute and arrange along internal rotor even circumferential, form even number ring shape permanent-magnet structure; Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; The permanent magnet of adjacent two circumference is successively along same circumferencial direction dislocation certain angle, define the plane Z of a vertical described rotating shaft (1), the projection of the permanent magnet of adjacent two circumference on described plane Z is along same even circumferential cross-distribution, and the central angle θ of described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) meets
wherein n is the permanent magnet sheet number on same circumference;
Described outer rotor permanent magnet comprises some external rotor N utmost point permanent magnets (6) and external rotor S utmost point permanent magnet (7), the central angle of described external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) is all identical with central angle and the axial length of described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) with axial length, and distribute and arrange along external rotor even circumferential, form even number ring shape permanent-magnet structure; Wherein, the permanent magnet polarity arranging along same circumference is identical, and the permanent magnet polarity of adjacent two circumference is contrary; The permanent magnet of adjacent two circumference is successively along same circumferencial direction dislocation certain angle, the projection of the permanent magnet of adjacent two circumference on described plane Z is along same even circumferential cross-distribution, and the central angle θ ' of described external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) meets
wherein n ' is the permanent magnet sheet number on same circumference.
4. a kind of straight line rotary composite movement permanent-magnet coupler according to claim 3, is characterized in that: described internal rotor N utmost point permanent magnet (4) and internal rotor S utmost point permanent magnet (5) and external rotor N utmost point permanent magnet (6) and external rotor S utmost point permanent magnet (7) are watt shape permanent magnet of radial magnetizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450127.3A CN104167900A (en) | 2014-09-05 | 2014-09-05 | Linear rotation composite motion permanent magnetic coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450127.3A CN104167900A (en) | 2014-09-05 | 2014-09-05 | Linear rotation composite motion permanent magnetic coupler |
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| CN104167900A true CN104167900A (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450127.3A Pending CN104167900A (en) | 2014-09-05 | 2014-09-05 | Linear rotation composite motion permanent magnetic coupler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131702A (en) * | 2021-04-21 | 2021-07-16 | 郑州大学 | Double-salient-pole hybrid excitation motor for industrial robot and control system thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB328846A (en) * | 1929-06-19 | 1930-05-08 | Excel Magneto Company | Improvements in magnetos |
| CN201248004Y (en) * | 2008-09-01 | 2009-05-27 | 诸暨意创磁性技术有限公司 | Permanent magnet clutch for reinforcing carry-over moment |
| US20100033046A1 (en) * | 2007-01-22 | 2010-02-11 | Akira Chiba | Rotating electric machine |
-
2014
- 2014-09-05 CN CN201410450127.3A patent/CN104167900A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB328846A (en) * | 1929-06-19 | 1930-05-08 | Excel Magneto Company | Improvements in magnetos |
| US20100033046A1 (en) * | 2007-01-22 | 2010-02-11 | Akira Chiba | Rotating electric machine |
| CN201248004Y (en) * | 2008-09-01 | 2009-05-27 | 诸暨意创磁性技术有限公司 | Permanent magnet clutch for reinforcing carry-over moment |
Non-Patent Citations (2)
| Title |
|---|
| 卢蓉芝: "旋转直线永磁电机的设计与仿真", 《中国优秀硕士学位论文全文数据库》 * |
| 彭科容: "永磁磁力耦合器结构与特性研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131702A (en) * | 2021-04-21 | 2021-07-16 | 郑州大学 | Double-salient-pole hybrid excitation motor for industrial robot and control system thereof |
| CN113131702B (en) * | 2021-04-21 | 2022-04-26 | 郑州大学 | Double-salient-pole hybrid excitation motor for industrial robot and control system thereof |
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Application publication date: 20141126 |