CN102832781A - Permanent-magnet dipole pair and permanent-magnet coupling device with same - Google Patents

Permanent-magnet dipole pair and permanent-magnet coupling device with same Download PDF

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Publication number
CN102832781A
CN102832781A CN2012103303469A CN201210330346A CN102832781A CN 102832781 A CN102832781 A CN 102832781A CN 2012103303469 A CN2012103303469 A CN 2012103303469A CN 201210330346 A CN201210330346 A CN 201210330346A CN 102832781 A CN102832781 A CN 102832781A
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Prior art keywords
permanent magnet
magnet
magnetic conductive
conductive board
permanent
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CN2012103303469A
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CN102832781B (en
Inventor
马小安
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XI'AN JUZHOU ELECTRONIC EQUIPMENT CO Ltd
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XI'AN JUZHOU ELECTRONIC EQUIPMENT CO Ltd
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Abstract

The invention discloses a permanent-magnet dipole pair and a permanent-magnet coupling device with the permanent-magnet dipole pair. The permanent-magnet dipole pair comprises a first magnetically-conductive plate and a second magnetically-conductive plate which are parallel to each other; a first permanent magnet and a third permanent magnet are fixed on one surface of the first magnetically-conductive plate, which faces to the second magnetically-conductive plate; a second permanent magnet and a fourth permanent magnet which are opposite to the first permanent magnet and the third permanent in position are fixed on one end of the second magnetically-conductive plate, which faces to the first magnetically-conductive plate; one ends of both the second permanent magnet and the fourth permanent magnet, which face to one end of the first magnetically-conductive plate, have opposite polarity; one ends of both the first permanent magnet and the second permanent magnet, which are opposite to each other, have opposite polarity; and one ends of both the third permanent magnet and the fourth both, which are opposite to each other, have opposite polarity. The permanent-magnet coupling device comprises a plurality of permanent-magnet dipole pairs which are arranged annularly to form a permanent-magnet dipole pair array combination. When being used for the large-size products, the permanent-magnet coupling device has the advantages that: the rotational inertia, the use amount of material and the processing cost are reduced, the heat can be dissipated more easily, and the invalid heat consumption is avoided.

Description

A kind of magnet dipole is to reaching based on the right permanent magnet coupling device of magnet dipole
[technical field]
The invention belongs to the power transmission field, be specifically related to a kind of magnet dipole reaching based on the right permanent magnet coupling device of magnet dipole.
[background technology]
The basic principle of existing permanent magnet coupling device all is to utilize the relative motion between conductor rotor and the p-m rotor on conductor rotor, to induce magnetic field of volution, and this magnetic field of volution attempt hinders the motion of permanent magnetic field, thereby is dragged.Utilize this mechanism, power is passed to load-side from the power side.
First kind permanent-magnet speed governor is a plate-like, regulates the distance between conductor rotor and the p-m rotor, promptly regulates size of gaps, and air gap is big, and the moment of torsion of transmission is little, and load speed is low, and vice versa.The patent No. is 98802726.7, and Granted publication number is CN 1140042C, and Granted publication day is that the patent on February 25th, 2004 discloses a kind of adjustable magnetic coupler, is first kind permanent-magnet speed governor.In addition, on 09 04th, 2002 disclosed Chinese patent discloses CN1367948A and discloses a kind of permanent magnet coupler with adjustable air gap, and above-mentioned patent is all pointed out need add iron plate at the conductor rotor back side.And second type of permanent-magnet speed governor is tubular.Then be through the magnetic field area of contact between adjusting p-m rotor and the conductor rotor, the transmission that realization is passed to load-side with power from the power side, area of contact is big, and the moment of torsion that then transmits is big, and load speed is high, and vice versa.Chinese patent number is 200920256058.7, and Granted publication number is CN201577019U, and Granted publication day is that on 09 08th, 2010 patent discloses a kind of permanent-magnet speed governor, is second type of permanent-magnet speed governor.It comprises: tubular conductor rotor, tubular p-m rotor and adjuster; The tubular p-m rotor is in the tubular conductor rotor; And with the rotating shaft independent rotation of installing separately; Adjuster adjusting tubular p-m rotor and tubular conductor rotor can change the active area between tubular conductor rotor and the tubular p-m rotor at the relative position of axis direction, realize changing the size of transmitting torque between tubular conductor rotor and the tubular p-m rotor.
In the prior art; When conductor rotor and p-m rotor relative motion; On above-mentioned iron plate, can produce useful vortex flow with very low efficient; And this vortex flow but produces more hear rate on iron plate, this not only runs counter to the original intention of design, even need pay more cost for reducing these invalid hear rates in force.The shortcoming that above-mentioned patent exists is, all is that the design to magnetic circuit still has some deficits, and is lower to the efficient of magnetic energy utilization, causes above-mentioned patented product under equal volume, and the power that can transmit is less; And conductor rotor is provided with ferromagnetic material, causes useless heat loss to increase.The above-mentioned first kind and second type of permanent-magnet speed governor all are provided with radiator, but do not have to consider to reduce or eliminate the generation of useless heat loss.
[summary of the invention]
The purpose of this invention is to provide a kind of magnet dipole to reaching based on the right permanent magnet coupling device of magnet dipole, to solve the problems of the technologies described above.
To achieve these goals, the present invention adopts following technical scheme:
A kind of magnet dipole is right, comprises first magnetic conductive board and second magnetic conductive board that laterally arrange; First magnetic conductive board is fixed with first permanent magnet and the 3rd permanent magnet on the one side of second magnetic conductive board, second magnetic conductive board is fixed with second permanent magnet and four permanent magnet relative with the 3rd permanent magnet position with first permanent magnet on the one side of first magnetic conductive board; Second permanent magnet and the 4th permanent magnet are opposite towards an end polarity of first magnetic conductive board, and the end polarity that first permanent magnet is relative with second permanent magnet is opposite, and the end polarity that the 3rd permanent magnet is relative with the 4th permanent magnet is opposite.
The present invention further improves and is: first magnetic conductive board and second magnetic conductive board are flat board, arc or V shaped slab.
The present invention further improves and is: first permanent magnet and the 3rd permanent magnet laterally arrange, and second permanent magnet and the 4th permanent magnet laterally arrange.
The present invention further improves and is: the side that first magnetic conductive board is installed first permanent magnet and the 3rd permanent magnet is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.
The present invention further improves and is: the side that second magnetic conductive board is installed second permanent magnet and the 4th permanent magnet is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.
The present invention further improves and is: first permanent magnet, second permanent magnet, the 3rd permanent magnet and the 4th permanent magnet big or small basic identical.
The present invention further improves and is: between first permanent magnet and second permanent magnet, have the working clearance between the 3rd permanent magnet and the 4th permanent magnet.
The present invention further improves and is: between first permanent magnet and the 3rd permanent magnet, have magnetic line of force external series gap between second permanent magnet and the 4th permanent magnet.
Based on the right permanent magnet coupling device of magnet dipole, comprise that some magnet dipoles are to, matrix dish, outer tight loop and interior tight loop; Some magnet dipoles evenly are fixed on the matrix dish annular, adjacent magnet dipole between have the gap; First magnetic conductive board that some magnet dipoles are right and an end of second magnetic conductive board all are fixed on the matrix dish.
The present invention further improves and is: the other end of first magnetic conductive board and second magnetic conductive board is individually fixed on outer tight loop and the interior tight loop.
The present invention further improves and is: said permanent magnet coupling device also comprises conductor loops; Conductor loops one end inserts in magnet dipole right first magnetic conductive board and the gap between two pairs of permanent magnets between second magnetic conductive board, and the other end is fixedly connected the conductor rotor flange.
The present invention further improves and is: the matrix dish comprises that matrix tries to get to the heart of a matter and be arranged at outward flange and the inward flange of matrix on trying to get to the heart of a matter, and the center that matrix is tried to get to the heart of a matter is provided with the main shaft via hole, also is provided with louvre on matrix is tried to get to the heart of a matter; First magnetic conductive board is near the inner ring of outward flange, and second magnetic conductive board is near the outer ring of inward flange.
With respect to prior art, the present invention has the following advantages: adopt a kind of magnet dipole to forming closed magnetic field efficiently; Conductor loops only is made up of conductor and does not need the magnetic conduction liner plate; Magnetic conductive board of the present invention is not a complete closure, forms the right array combination of a kind of magnet dipole; Especially in big products, having the following advantages: 1, reduce moment of inertia, 2, reduce material usage, 3, reduce processing cost, 4, help heat radiation, 5, avoid useless heat loss.
[description of drawings]
Fig. 1 is the structural representation of permanent magnet coupling device of the present invention;
Fig. 2 is the right structural representation of magnet dipole of the present invention (magnetic conductive board is for dull and stereotyped);
Fig. 3 is right structural representation of magnet dipole of the present invention (magnetic conductive board is an arc) and the part that contains conductor loops;
Fig. 4 is the sketch map of matrix dish;
Fig. 5 is the sketch map of magnet rotor;
Fig. 6 is the cutaway view of Fig. 5.
Among the figure: 1: magnetic conductive board, 1-1: first magnetic conductive board, 1-2: second magnetic conductive board, 2: permanent magnet, 2-1: first permanent magnet, 2-2: second permanent magnet, 2-3: the 3rd permanent magnet, 2-4: the 4th permanent magnet, 3: matrix dish, 3-1: outward flange; 3-2: inward flange; 3-3: matrix is tried to get to the heart of a matter; 3-4: louvre, 3-5: main shaft via hole, 4: outer tight loop, 5: interior tight loop, 6: conductor loops, 7: the conductor rotor flange.
[embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
See also Fig. 2 and shown in Figure 3; A kind of magnet dipole of the present invention is right; Comprise magnetic conductive board 1 and permanent magnet 2, magnetic conductive board 1 comprises the first magnetic conductive board 1-1 and the second magnetic conductive board 1-2, and permanent magnet 2 comprises the first permanent magnet 2-1, the second permanent magnet 2-2, the 3rd permanent magnet 2-3 and the 4th permanent magnet 2-4.The first magnetic conductive board 1-1 and the second magnetic conductive board 1-2 can be flat board, arc or V shaped slab; Laterally arrange between the first magnetic conductive board 1-1 and the second magnetic conductive board 1-2; The first permanent magnet 2-1 and the 3rd permanent magnet 2-3 secured in parallel in the first magnetic conductive board 1-1 on the one side of the second magnetic conductive board 1-2; And the first permanent magnet 2-1 and the 3rd permanent magnet 2-3 are opposite towards the end polarity of the second magnetic conductive board 1-2; The second permanent magnet 2-2 and the 4th permanent magnet 2-4 secured in parallel in the second magnetic conductive board 1-2 on the one side of the first magnetic conductive board 1-1; The second permanent magnet 2-2 and the 4th permanent magnet 2-4 are opposite towards the end polarity of the first magnetic conductive board 1-1, and the position of the position of the first permanent magnet 2-1 and the second permanent magnet 2-2 is relative, and the position of the position of the 3rd permanent magnet 2-3 and the 4th permanent magnet 2-4 is relative; The end polarity that the first permanent magnet 2-1 is relative with the second permanent magnet 2-2 is opposite, and the end polarity that the 3rd permanent magnet 2-3 is relative with the 4th permanent magnet 2-4 is opposite.Between the first permanent magnet 2-1 and the second permanent magnet 2-2, have certain interval between the 3rd permanent magnet 2-3 and the 4th permanent magnet 2-4, can stretch in this gap for conductor loops 6.And leave the gap that preferably is not more than 5mm between the surfaces externally and internally of conductor loops and the magnet, so that adjustment is installed.The side that the first magnetic conductive board 1-1 installs the first permanent magnet 2-1 and the 3rd permanent magnet 2-3 is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.The side that the second magnetic conductive board 1-2 installs the second permanent magnet 2-2 and the 4th permanent magnet 2-4 is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.
Between first permanent magnet and the 3rd permanent magnet, have magnetic line of force external series gap between second permanent magnet and the 4th permanent magnet.
See also Fig. 1 to shown in Figure 6, the present invention is a kind of based on the right permanent magnet coupling device of magnet dipole, comprises that a plurality of magnet dipoles are to, matrix dish 3, outer tight loop 4, interior tight loop 5, conductor loops 6 and conductor rotor flange 7.
Matrix dish 3 comprise matrix try to get to the heart of a matter 3-3 be arranged at matrix try to get to the heart of a matter outward flange 3-1 and inward flange 3-2 on the 3-3, the try to get to the heart of a matter center of 3-3 of matrix is provided with main shaft via hole 3-5, matrix is tried to get to the heart of a matter and also is provided with louvre 3-4 on the 3-3.
A plurality of magnet dipoles evenly are fixed on the matrix dish 3 annular, adjacent magnet dipole between have the gap, conveniently dispel the heat and reduce moment of inertia; A first magnetic conductive board 1-1 that a plurality of magnet dipoles are right and the end of the second magnetic conductive board 1-2 all are fixed on the matrix dish 3 (to be fixed through methods such as screw, welding, riveted joints); (the first magnetic conductive board 1-1 is near the inner ring of outward flange 3-1 between outward flange 3-1 and inward flange 3-2; The second magnetic conductive board 1-2 is near the outer ring of inward flange 3-2), the other end is individually fixed on outer tight loop 4 and the interior tight loop 5.
Conductor loops 6 one ends insert in the gap of the first right magnetic conductive board 1-1 of magnet dipole and two pairs of permanent magnets between the second magnetic conductive board 1-2, and the other end is fixedly connected conductor rotor flange 7.
Each magnet dipole centering, can form the magnetic line of force of two bundles between the magnet in opposite directions perpendicular to magnet surface, the zone at these magnetic line of force places is the uniform magnetic fields that edge effect is very little, when conductor passes through therein, just receives the resistance of magnetic induction.
, as conductor rotor, be installed in respectively on the driving shaft and driven shaft of power transmission with ring shaped conductor being combined into the magnet rotor with one group of several magnet dipole, conductor rotor places in the described magnetic field, just can realize permanent magnetism coupled transfer power.
In the present embodiment, conductor rotor is connected with motor coaxle, and p-m rotor is connected with load is coaxial.Be equipped with when the driven by motor conductor rotor in the p-m rotor of powerful rare-earth magnet and rotating; It is cutting magnetic line; Thereby in conductor rotor, produce vortex flow, and then the magnetic field of inducting and making new advances, because the interaction of two magnetic field forces; Just can drag p-m rotor and rotate thereupon, thus can be between motor and load with non-contacting mode realize the moment of torsion transmission.There is certain slippage all the time in this dragging, i.e. the rotating speed that load obtains is lower than rotating speed of motor.When the axial adjustment conductor loops places the size at the position in magnetic field, the size of just regulating useful flux can realize speed governing.
Although above embodiment of the present invention have been carried out detailed description, the present invention is not limited to above-mentioned specific embodiments.Those of ordinary skill in the art under the situation that does not break away from the scope that claim of the present invention protects, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the present invention's protection.

Claims (10)

1. a magnet dipole is right, it is characterized in that, comprises first magnetic conductive board (1-1) and second magnetic conductive board (1-2) that laterally arrange; First magnetic conductive board (1-1) is fixed with first permanent magnet (2-1) and the 3rd permanent magnet (2-3) on the one side of second magnetic conductive board (1-2), second magnetic conductive board (1-2) is fixed with second permanent magnet (2-2) and four permanent magnet (2-4) relative with the 3rd permanent magnet (2-3) position with first permanent magnet (2-1) on the one side of first magnetic conductive board (1-1); Second permanent magnet (2-2) and the 4th permanent magnet (2-4) are opposite towards an end polarity of first magnetic conductive board (1-1); The end polarity that first permanent magnet (2-1) is relative with second permanent magnet (2-2) is opposite, and the end polarity that the 3rd permanent magnet (2-3) is relative with the 4th permanent magnet (2-4) is opposite.
2. a kind of magnet dipole according to claim 1 is right, it is characterized in that, first magnetic conductive board (1-1) and second magnetic conductive board (1-2) are flat board, arc or V shaped slab.
3. a kind of magnet dipole according to claim 1 is right, it is characterized in that, first permanent magnet (2-1) and the 3rd permanent magnet (2-3) laterally arrange, and second permanent magnet (2-2) and the 4th permanent magnet (2-4) laterally arrange.
4. a kind of magnet dipole according to claim 1 is right, it is characterized in that, the side that first magnetic conductive board (1-1) is installed first permanent magnet (2-1) and the 3rd permanent magnet (2-3) is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.
5. a kind of magnet dipole according to claim 1 is right, it is characterized in that, the side that second magnetic conductive board (1-2) is installed second permanent magnet (2-2) and the 4th permanent magnet (2-4) is plane, arcwall face or V-arrangement face, and opposite side is an arbitrary shape.
6. a kind of magnet dipole according to claim 1 is right, it is characterized in that, between first permanent magnet (2-1) and second permanent magnet (2-2), have the gap between the 3rd permanent magnet (2-3) and the 4th permanent magnet (2-4).
7. based on the right permanent magnet coupling device of each described a kind of magnet dipole in the claim 1 to 6, it is characterized in that, comprise that some magnet dipoles are to, matrix dish (3), outer tight loop (4) and interior tight loop (5); Some magnet dipoles evenly are fixed on the matrix dish (3) annular, adjacent magnet dipole between have the gap; First magnetic conductive board (1-1) that some magnet dipoles are right and an end of second magnetic conductive board (1-2) all are fixed on the matrix dish (3).
8. permanent magnet coupling device according to claim 7 is characterized in that, the other end of first magnetic conductive board (1-1) and second magnetic conductive board (1-2) is individually fixed on outer tight loop (4) and the interior tight loop (5).
9. permanent magnet coupling device according to claim 7; It is characterized in that; Said permanent magnet coupling device also comprises conductor loops (6); Conductor loops (6) one ends insert in magnet dipole right first magnetic conductive board (1-1) and the gap between two pairs of permanent magnets between second magnetic conductive board (1-2), and the other end is fixedly connected conductor rotor flange (7).
10. permanent magnet coupling device according to claim 7; It is characterized in that; Matrix dish (3) comprises that matrix tries to get to the heart of a matter (3-3) and be arranged at matrix try to get to the heart of a matter outward flange (3-1) and inward flange (3-2) on (3-3); The matrix center of (3-3) of trying to get to the heart of a matter is provided with main shaft via hole (3-5), and matrix is tried to get to the heart of a matter and also is provided with louvre (3-4) on (3-3); First magnetic conductive board (1-1) is near the inner ring of outward flange (3-1), and second magnetic conductive board (1-2) is near the outer ring of inward flange (3-2).
CN201210330346.9A 2012-09-07 2012-09-07 Permanent-magnet dipole pair and permanent-magnet coupling device with same Active CN102832781B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1146207A (en) * 1981-02-06 1983-05-10 Nova Scotia Research Foundation Corporation Slotted air-cooled magnetic isolation coupling
DE3545214A1 (en) * 1984-12-28 1986-07-03 Královopolská strojírna, N.P., Brünn/Brno Hermetic magnetic coupling without a gland
JPH07111772A (en) * 1993-10-07 1995-04-25 Koyo Seiko Co Ltd Magnetic coupling
US6841909B2 (en) * 2002-08-01 2005-01-11 Albert Six Magnetic drive system
CN101102071A (en) * 2006-07-06 2008-01-09 Zf腓德烈斯哈芬股份公司 Hysteresis clutch/brake
CN201478985U (en) * 2009-08-11 2010-05-19 余亚莉 Barrel-type permanent magnet coupling shaft coupler capable of adjusting air-gap magnetic field coupling distances and areas
CN201478983U (en) * 2009-06-22 2010-05-19 余亚莉 Permanent magnetic coupling device of cylindrical transmission shaft
CN202160092U (en) * 2011-08-15 2012-03-07 西安巨舟电子设备有限公司 Speed-adjustable magnetic force coupler
CN202856591U (en) * 2012-09-07 2013-04-03 西安巨舟电子设备有限公司 Magnetic dipole pair and permanent magnetic coupler based on magnetic dipole pair

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1146207A (en) * 1981-02-06 1983-05-10 Nova Scotia Research Foundation Corporation Slotted air-cooled magnetic isolation coupling
DE3545214A1 (en) * 1984-12-28 1986-07-03 Královopolská strojírna, N.P., Brünn/Brno Hermetic magnetic coupling without a gland
JPH07111772A (en) * 1993-10-07 1995-04-25 Koyo Seiko Co Ltd Magnetic coupling
US6841909B2 (en) * 2002-08-01 2005-01-11 Albert Six Magnetic drive system
CN101102071A (en) * 2006-07-06 2008-01-09 Zf腓德烈斯哈芬股份公司 Hysteresis clutch/brake
CN201478983U (en) * 2009-06-22 2010-05-19 余亚莉 Permanent magnetic coupling device of cylindrical transmission shaft
CN201478985U (en) * 2009-08-11 2010-05-19 余亚莉 Barrel-type permanent magnet coupling shaft coupler capable of adjusting air-gap magnetic field coupling distances and areas
CN202160092U (en) * 2011-08-15 2012-03-07 西安巨舟电子设备有限公司 Speed-adjustable magnetic force coupler
CN202856591U (en) * 2012-09-07 2013-04-03 西安巨舟电子设备有限公司 Magnetic dipole pair and permanent magnetic coupler based on magnetic dipole pair

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