CN104184302A - Linear and rotary motion converter for V-type magnetic pole - Google Patents
Linear and rotary motion converter for V-type magnetic pole Download PDFInfo
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- CN104184302A CN104184302A CN201410453864.9A CN201410453864A CN104184302A CN 104184302 A CN104184302 A CN 104184302A CN 201410453864 A CN201410453864 A CN 201410453864A CN 104184302 A CN104184302 A CN 104184302A
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- permanent magnet
- utmost point
- mover
- rotor core
- point permanent
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Abstract
The invention discloses a linear and rotary motion converter for a V-type magnetic pole. According to the linear and rotary motion converter, linear motion and rotary motion can be mutually converted, and kinetic energy transfer can be achieved. The converter comprises a rotary unit, a linear unit and a magnetism adjusting mechanism. The rotary unit comprises a rotating shaft, a rotor core and a permanent magnet, wherein the permanent magnet is of a segmented V-type structure and is pasted on the surface of the rotor core. The linear unit comprises a mover yoke and a permanent magnet. The magnetism adjusting mechanism is composed of permeable magnetism adjusting iron blocks and fixed between the rotary unit and the linear unit. As the rotary unit is of a novel magnetic pole structure, the torque pulsation of the converter is effectively reduced, jitter and loss of the converter are reduced, and the stability and energy conversion efficiency of the converter are improved. Meanwhile, the V-type magnetic pole is centrosymmetric, so that axial magnetic pulls are mutually offset, the operational reliability of the converter is improved, and the service life of the converter is prolonged.
Description
Technical field
The present invention relates to a kind of V-type magnetic pole linear transducer that rotatablely moves, be applicable to Non-contact speed-changing and drive occasion, belong to power transmission technical field.
Background technology
In fields such as industrial and agricultural production, national defence, Aeronautics and Astronautics, the motion that often rotation motion need to be in line, or rectilinear motion is become and rotatablely moved.According to the difference of application scenario, people develop various converting means or equipment meets above-mentioned requirements, such as rack-and-pinion, chain, steel wire rope, driving-belt, screw mandrel, crank connecting link, slide block mechanism, cam ejection pin mechanism etc.In these converting means, parts moving linearly and rotating moving part are in contact with one another, and have brought the problems such as friction, vibration, noise.
Magneto rack-and-pinion 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 rectilinear motion and rotatablely move the field of conversion mutually.But torque density that magneto rack-and-pinion can be transmitted is less, energy transfer efficiency is lower, is difficult to meet the needs of industrial transmission.Magnetic field modulation application of principle, in permanent magnet gear topological structure, can significantly be improved to torque and efficiency that permanent magnet gear transmits.Under this background, the magneto gear & rack structure of take is introduced magnetic regulation mechanism as basis, has formed a kind of novel linear rotation converter, and this transducer is mainly by magnetic regulation mechanism, to realize the modulation of air-gap field, increase permanent magnet utilance, improved torque density and the power of switching mechanism.
The method that adopts inclination permanent magnet, can eliminate the torque pulsation of transformational structure, but the unidirectional inclination of permanent magnet can cause axial magnetic pull, and unbalanced axial force may be damaged rotating shaft and equipment, reduces the shelf life of transducer.
Summary of the invention
Goal of the invention: for above-mentioned prior art, propose a kind of V-type magnetic pole linear transducer that rotatablely moves, in the time of can torque ripple reduction, the suffered axial force of permanent magnet on rotor core surface is cancelled out each other, thereby improve the reliability of transducer.
Technical scheme: a kind of V-type magnetic pole linear transducer that rotatablely moves, is characterized in that: comprise rotary unit, straight line units and magnetic regulation mechanism, described magnetic regulation mechanism is fixedly installed between rotary unit and straight line units; Wherein:
Described rotary unit comprises rotating shaft, rotor core and permanent magnet, and the axis hole of rotor core is passed in rotating shaft, and tightens together with rotor core, and permanent magnet sticks on the surface of rotor core or is embedded in rotor core; Wherein, described permanent magnet comprises rotor N utmost point permanent magnet, rotor S utmost point permanent magnet;
Every utmost point permanent magnet of described rotary unit, along the circumference setting of described rotor core, forms multi-stage annular permanent magnet rotor structure; Every utmost point permanent magnet axially adopts segmentation structure setting along rotating shaft, each section of permanent magnet has identical central angle, internal-and external diameter and axial length, two sections of adjacent permanent magnets setting of staggering in every utmost point permanent magnet, the central point of every section of permanent magnet in every utmost point permanent magnet is wired to " V " type.
Further, watt shape permanent magnet that described rotor N utmost point permanent magnet and rotor S utmost point permanent magnet are radial magnetizing.
Further, mover N utmost point permanent magnet and mover S utmost point permanent magnet that described straight line units comprises mover yoke and radially magnetizes, described mover N utmost point permanent magnet and mover S utmost point permanent magnet intermesh and are pasted on the surface of mover yoke or are embedded in mover yoke along the straight line units direction of motion.
Further, mover N utmost point permanent magnet or mover S utmost point permanent magnet that described straight line units comprises mover yoke and radially magnetizes, described mover N utmost point permanent magnet or mover S utmost point permanent magnet are pasted on the surface of mover yoke or are embedded in mover yoke along the straight line units direction of motion.
Further, described magnetic regulation mechanism comprises the adjustable magnetic iron block of the identical and spaced magnetic conduction of width, all adjustable magnetic iron blocks around the curved setting of rotor core, leave interior air gap between the end of all adjustable magnetic iron blocks and the permanent magnet on rotor core surface near one end of described rotary unit; Between the permanent magnet on described adjustable magnetic iron block and described mover yoke surface, leave the consistent outer air gap of width.
Further, between described adjustable magnetic iron block, leave gap, in described gap, fill non-magnetic medium.
Beneficial effect: the present invention has advantages of traditional magnetic-gear: without frictional dissipation, energy transfer efficiency is improved, reduce noise and vibration the stability of system and comfortableness are improved; Secondly this transducer, by introducing magnetic regulation mechanism, has improved the utilance of permanent magnet, realizes the modulation of air-gap field simultaneously, improves torque density and the energy conversion efficiency of transducer.
The rotary unit permanent magnet of transducer adopts segmentation structure, " V " type is arranged, in the situation that not affecting air gap flux density size, further optimize air gap flux density waveform, thereby torque ripple reduction and cogging torque, avoid occurring large noise and vibration having improved the stability of transducer operation in transducer running; The permanent magnet of rotary unit adopts V-type to arrange, and in the time of torque ripple reduction, the caused axial magnetic pull of single syncline electrode structure is cancelled out each other, thereby has improved the operational reliability of transducer.
Accompanying drawing explanation
Fig. 1 is the rotatablely move structural representation of transducer of V-type magnetic pole linear;
Fig. 2 is the structural representation of the rotary unit of embodiment 1;
Fig. 3 is the straight line units of embodiment 1 and the structural representation of magnetic regulation mechanism.
Embodiment
Below in conjunction with accompanying drawing, the present invention is done further and explained.
Embodiment 1: the transducer that rotatablely moves of a kind of V-type magnetic pole linear as shown in Figure 1, comprise rotary unit, straight line units and magnetic regulation mechanism, and magnetic regulation mechanism is fixedly installed between rotary unit and straight line units.
As shown in Figure 2, rotary unit comprises rotating shaft 1, rotor core 2 and permanent magnet.The axis hole of rotor core 2 is passed in rotating shaft 1, and tightens together with rotor core 2, and permanent magnet sticks on the surface of rotor core 2.Wherein, permanent magnet comprises rotor N utmost point permanent magnet 3, rotor S utmost point permanent magnet 4, watt shape permanent magnet that rotor N utmost point permanent magnet 3 and rotor S utmost point permanent magnet 4 are radial magnetizing.Every utmost point permanent magnet of rotary unit, along the circumference setting of rotor core 2, forms multi-stage annular permanent magnet rotor structure.Every utmost point permanent magnet axially adopts segmentation structure setting along rotating shaft, each section of permanent magnet has identical central angle, internal-and external diameter and axial length, in every utmost point permanent magnet, each section of permanent magnet 1.5 degree that stagger successively stick on the surface of rotor core 2, and the central point of every section of permanent magnet in every utmost point permanent magnet is wired to " V " type.In the present embodiment, permanent magnet comprises two pairs of utmost point permanent magnets, and pole embrace gets 0.6.
As shown in Figure 3, mover N utmost point permanent magnet 6 and mover S utmost point permanent magnet 7 that straight line units comprises mover yoke 8 and radially magnetizes, mover N utmost point permanent magnet 6 and mover S utmost point permanent magnet 7 intermesh and are pasted on the surface of mover yoke 8 along the straight line units direction of motion.Magnetic regulation mechanism comprises the adjustable magnetic iron block 5 of the identical and spaced magnetic conduction of width, all adjustable magnetic iron blocks 5 near one end of rotary unit around the curved setting of rotor core 2.Adjustable magnetic iron block is parallel with the surperficial permanent magnet of mover yoke 8 near one end of straight line units, between the end of all adjustable magnetic iron blocks 5 and the permanent magnet on rotor core 2 surfaces, leaves air gap, and this air gap is called interior air gap; Between the permanent magnet on adjustable magnetic iron block and described mover yoke 8 surfaces, leave the consistent air gap of width, this air gap is called outer air gap.Between adjustable magnetic iron block 5, leave gap, in this gap, fill non-magnetic medium.
Embodiment 2: be only with the difference of embodiment 1: the permanent magnet in rotary unit is embedded in rotor core 2.The mover N utmost point permanent magnet 6 that straight line units comprises mover yoke 8 and radially magnetizes; Mover N utmost point permanent magnet 6 is pasted on the surface of mover yoke 8 along the straight line units direction of motion.Mover N utmost point permanent magnet 6 and mover S utmost point permanent magnet 7 in straight line units intermesh and are embedded in mover yoke 8 along the straight line units direction of motion.In addition, the mover N utmost point permanent magnet 6 in mover yoke 8 can also be embedded in mover yoke 8 along the straight line units direction of motion.
In addition, the mover N utmost point permanent magnet 6 in mover yoke 8 can also replace with mover S utmost point permanent magnet 7.
This straight line magnetic line of force that transducer produces by permanent magnet on rotary unit that rotatablely moves enters in adjustable magnetic iron block through interior air gap, again through adjustable magnetic iron block and outer air gap, arrive the permanent magnet of straight line units, the last permanent magnet of again getting back to rotary unit through adjustable magnetic iron block, thus closed-loop path formed.Magnetic regulation mechanism between rotary unit and straight line units has been realized the modulation of inside and outside air-gap field, and then makes full use of Gas-gap Magnetic Field Resonance Wave, realizes the transmission of mechanical energy between the unequal moving cell of number of magnetic poles.Surface Mount on rotor core surface or be embedded in permanent magnet in rotor core be subject to force direction vertical with the incline direction of permanent magnet, the permanent magnet in rotary course can be subject to axial pulling force.It is the method that torque ripple reduction adopts that the present invention has avoided general p-m rotor: oblique permanent magnet, adopt " V " type magnetic pole, and in torque ripple reduction, the caused axial magnetic pull of single syncline electrode structure is cancelled out each other.
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 (6)
1. the V-type magnetic pole linear transducer that rotatablely moves, is characterized in that: comprise rotary unit, straight line units and magnetic regulation mechanism, described magnetic regulation mechanism is fixedly installed between rotary unit and straight line units; Wherein:
Described rotary unit comprises rotating shaft (1), rotor core (2) and permanent magnet, rotating shaft (1) is through the axis hole of rotor core (2), and tighten together with rotor core (2), permanent magnet sticks on the surface of rotor core (2) or is embedded in rotor core (2); Wherein, described permanent magnet comprises rotor N utmost point permanent magnet (3), rotor S utmost point permanent magnet (4);
Every utmost point permanent magnet of described rotary unit, along the circumference setting of described rotor core (2), forms multi-stage annular permanent magnet rotor structure; Every utmost point permanent magnet axially adopts segmentation structure setting along rotating shaft, each section of permanent magnet has identical central angle, internal-and external diameter and axial length, two sections of adjacent permanent magnets setting of staggering in every utmost point permanent magnet, the central point of every section of permanent magnet in every utmost point permanent magnet is wired to " V " type.
2. a kind of V-type magnetic pole linear according to claim 1 transducer that rotatablely moves, is characterized in that: described rotor N utmost point permanent magnet (3) and rotor S utmost point permanent magnet (4) are watt shape permanent magnet of radial magnetizing.
3. a kind of V-type magnetic pole linear according to claim 1 transducer that rotatablely moves, it is characterized in that: mover N utmost point permanent magnet (6) and mover S utmost point permanent magnet (7) that described straight line units comprises mover yoke (8) and radially magnetizes, described mover N utmost point permanent magnet (6) and mover S utmost point permanent magnet (7) intermesh and are pasted on the surface of mover yoke (8) or are embedded in mover yoke (8) along the straight line units direction of motion.
4. a kind of V-type magnetic pole linear according to claim 1 transducer that rotatablely moves, it is characterized in that: mover N utmost point permanent magnet (6) or mover S utmost point permanent magnet (7) that described straight line units comprises mover yoke (8) and radially magnetizes, described mover N utmost point permanent magnet (6) or mover S utmost point permanent magnet (7) are pasted on the surface of mover yoke (8) or are embedded in mover yoke (8) along the straight line units direction of motion.
5. a kind of V-type magnetic pole linear according to claim 1 transducer that rotatablely moves, it is characterized in that: described magnetic regulation mechanism comprises the adjustable magnetic iron block (5) of the identical and spaced magnetic conduction of width, interior air gap, around the curved setting of rotor core (2), is left between the end of all adjustable magnetic iron blocks (5) and the permanent magnet on rotor core (2) surface in one end of the close described rotary unit of all adjustable magnetic iron blocks (5); Between the permanent magnet on described adjustable magnetic iron block and described mover yoke (8) surface, leave the consistent outer air gap of width.
6. according to the transducer that rotatablely moves of a kind of V-type magnetic pole linear described in claim 3 or 4, it is characterized in that: between described adjustable magnetic iron block (5), leave gap, in described gap, fill non-magnetic medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453864.9A CN104184302A (en) | 2014-09-05 | 2014-09-05 | Linear and rotary motion converter for V-type magnetic pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410453864.9A CN104184302A (en) | 2014-09-05 | 2014-09-05 | Linear and rotary motion converter for V-type magnetic pole |
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| CN104184302A true CN104184302A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410453864.9A Pending CN104184302A (en) | 2014-09-05 | 2014-09-05 | Linear and rotary motion converter for V-type magnetic pole |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634193A (en) * | 2016-02-29 | 2016-06-01 | 东南大学 | Magnetic gear based rotating-linear variable speed motor |
| WO2021249470A1 (en) * | 2020-06-10 | 2021-12-16 | 克瑞科技(东莞)有限公司 | Two-way magnetic levitation sonic electric motor device |
| CN114400805A (en) * | 2022-01-24 | 2022-04-26 | 浙江大学 | Rotor structure of permanent magnet synchronous motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217057A (en) * | 1983-05-19 | 1984-12-07 | Yuji Kanzaki | Power transmission apparatus utilizing permanent magnet |
| CN101534044A (en) * | 2008-03-14 | 2009-09-16 | 刘新广 | Magnetic rotation conversion straight-moving mechanism |
| CN203301256U (en) * | 2013-04-12 | 2013-11-20 | 杭州中科赛思伺服电机有限公司 | Segmented rotor skew pole structure |
| CN103475185A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Converter for linear motion and rotary motion |
| CN103580324A (en) * | 2012-08-01 | 2014-02-12 | 德昌电机(深圳)有限公司 | Permanent magnet rotor and permanent magnet motor with same |
| CN103746529A (en) * | 2013-12-27 | 2014-04-23 | 联合汽车电子有限公司 | Permanent-magnet synchronous motor, stator and rotor |
-
2014
- 2014-09-05 CN CN201410453864.9A patent/CN104184302A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59217057A (en) * | 1983-05-19 | 1984-12-07 | Yuji Kanzaki | Power transmission apparatus utilizing permanent magnet |
| CN101534044A (en) * | 2008-03-14 | 2009-09-16 | 刘新广 | Magnetic rotation conversion straight-moving mechanism |
| CN103580324A (en) * | 2012-08-01 | 2014-02-12 | 德昌电机(深圳)有限公司 | Permanent magnet rotor and permanent magnet motor with same |
| CN203301256U (en) * | 2013-04-12 | 2013-11-20 | 杭州中科赛思伺服电机有限公司 | Segmented rotor skew pole structure |
| CN103475185A (en) * | 2013-09-30 | 2013-12-25 | 东南大学 | Converter for linear motion and rotary motion |
| CN103746529A (en) * | 2013-12-27 | 2014-04-23 | 联合汽车电子有限公司 | Permanent-magnet synchronous motor, stator and rotor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634193A (en) * | 2016-02-29 | 2016-06-01 | 东南大学 | Magnetic gear based rotating-linear variable speed motor |
| WO2021249470A1 (en) * | 2020-06-10 | 2021-12-16 | 克瑞科技(东莞)有限公司 | Two-way magnetic levitation sonic electric motor device |
| CN114400805A (en) * | 2022-01-24 | 2022-04-26 | 浙江大学 | Rotor structure of permanent magnet synchronous motor |
| CN114400805B (en) * | 2022-01-24 | 2023-11-14 | 浙江大学 | Rotor structure of permanent magnet synchronous motor |
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