CN114268211A - Permanent magnet eddy current coupling with adjustable transmission efficiency - Google Patents
Permanent magnet eddy current coupling with adjustable transmission efficiency Download PDFInfo
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- CN114268211A CN114268211A CN202111444830.XA CN202111444830A CN114268211A CN 114268211 A CN114268211 A CN 114268211A CN 202111444830 A CN202111444830 A CN 202111444830A CN 114268211 A CN114268211 A CN 114268211A
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- bushing
- extending part
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
A permanent magnet eddy current coupling with adjustable transmission efficiency comprises a base; a first bushing is arranged at the right part of the base, a first extending part is circumferentially arranged on the first bushing, a conductor rotor is arranged in the first bushing, the right side of the conductor rotor is coaxially connected with a motor shaft, a magnetic rotor is arranged in the conductor rotor, and the left side of the magnetic rotor exceeds the conductor rotor; a second bushing is arranged at the left part of the base, a second extending part is circumferentially arranged on the second bushing, a sliding groove is formed in the position, corresponding to the second extending part, of the base, a sliding block is arranged in the sliding groove, the second extending part is connected with the sliding block, a connecting sleeve is arranged in the second bushing, the size of the connecting sleeve is matched with that of the conductor rotor, a shaft hole is formed in the connecting sleeve, a load shaft penetrates through the shaft hole, and the load shaft is coaxially connected with the magnetic rotor through a connecting shaft; an axial distance adjusting device is arranged between the first extending part and the second extending part. The adjustable range of transmission efficiency can be changed by the coupler.
Description
Technical Field
The invention relates to a permanent magnet eddy current coupling with adjustable transmission efficiency.
Background
The coupler is a device for transmitting torque, and is generally divided into a rigid coupler and a flexible coupler, the common coupler transmits motion and torque in a direct contact mode, and the permanent magnet eddy current coupler transmits torque in a non-contact mode, so that the permanent magnet eddy current coupler has the advantages of high efficiency, energy saving, high transmission efficiency, long service life and convenience in maintenance. The existing permanent magnet eddy current coupling has some defects when in use: when the adjustable conductor rotor air gap adjusting device is used, the size of the air gap of the conductor rotor air gap cannot be adjusted, so that the adjustable range of the transmission efficiency cannot be changed, and the adjustable degree is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a permanent magnet eddy current coupling with adjustable transmission efficiency, which can adjust the size of an air gap of a conductor rotor when in use, change the adjustable range of the transmission efficiency and further increase the adjustable degree of the transmission efficiency of the coupling.
In order to solve the technical problem, the invention provides a permanent magnet eddy current coupling with adjustable transmission efficiency, which comprises a base;
the right part of the base is provided with a first bushing, the first bushing is a circular pipe body which is horizontally arranged and moves left and right, the left and right directions of the first bushing are open, the first bushing is circumferentially provided with a first extending part which extends radially, the first bushing is connected with the base through the first extending part, a conductor rotor coaxially penetrates through the first bushing through a bearing, the conductor rotor is in a cylindrical shape with an open left side, the right side of the conductor rotor is coaxially connected with a motor shaft, a magnetic rotor which is coaxially arranged is arranged in the conductor rotor, and the left side of the magnetic rotor exceeds the conductor rotor;
the left part of the base is provided with a second bushing, the second bushing is a circular tube body which is horizontally arranged and runs in the left and right directions, the first bushing and the second bushing are coaxially arranged, the left and right directions of the second bushing are both open, the second bushing is circumferentially provided with a second extending part which extends in the radial direction, a sliding groove which runs in the left and right directions is arranged at the position, corresponding to the second extending part, on the upper side of the base, a sliding block matched with the sliding groove is arranged in the sliding groove, the second extending part is connected with the sliding block, a connecting sleeve is coaxially arranged in the second bushing in a penetrating manner through a bearing and is in a cylindrical shape with an opening at the right side, the inner diameter and the outer diameter of the connecting sleeve are the same as those of the conductor rotor, a shaft hole is formed in a bottom plate on the left side of the connecting sleeve, a load shaft is arranged in the shaft hole in a penetrating manner, and the load shaft is coaxially connected with the magnetic rotor through a connecting shaft;
an axial distance adjusting device is arranged between the first extending part and the second extending part.
For the sake of simplicity, the permanent magnet eddy current coupling with adjustable transmission efficiency according to the present invention is hereinafter referred to as the present coupling.
The use method and the advantages of the coupling are as follows: when the coupler is normally used, the distance between the connecting sleeve and the conductor rotor is changed by adjusting the distance adjusting device, so that the air gap size of the conductor rotor is changed, the adjustable range between the magnetic rotor and the conductor rotor is changed, the adjustable range of the transmission efficiency of the coupler is further changed, the overall use effect of the coupler is improved, and the defect that the adjustable degree of the existing permanent magnet eddy current coupler is low when the coupler is used is overcome.
In order to achieve better using effect of the coupling, the preferred scheme is as follows:
preferably, the axial distance adjusting device comprises a rotating shaft which is horizontally arranged and moves left and right, the rotating shaft can rotate along the axial direction of the rotating shaft, external threads are arranged on the outer side of the circumferential direction of the rotating shaft, the right end of the rotating shaft is arranged on the left side of the first extending part, a threaded hole matched with the rotating shaft is formed in the position, corresponding to the rotating shaft, of the second extending part, and the left end of the rotating shaft penetrates through the threaded hole and is matched with the threaded hole.
The rotating shaft is equivalent to a screw rod, the second extending part with the threaded hole is equivalent to a screw rod nut, the screw rod nut and the screw rod nut are matched, and when the rotating shaft is rotated, the second extending part can drive the second bushing and the connecting sleeve to move leftwards and rightwards, so that the distance between the connecting sleeve and the conductor rotor is changed.
Preferably, the left side of the first bushing is provided with an annular groove extending rightwards along the circumferential wall thickness of the first bushing, the right side of the second bushing is provided with a sliding ring matched with the annular groove at a position corresponding to the annular groove, and the right side of the sliding ring is inserted into the annular groove and is in sliding fit with the annular groove.
Preferably, the first extending part is provided with a guide rod extending horizontally to the left, the second extending part is provided with a guide hole matched with the guide rod at a position corresponding to the guide rod, and the left end of the guide rod penetrates through the guide hole and is matched with the guide hole.
The sliding ring is in sliding fit with the annular groove, and the guide rod is matched with the guide hole to improve the stability of the second bushing and the connecting sleeve during movement, so that the coaxiality of the second bushing and the connecting sleeve is kept with the conductor rotor.
As preferred, the magnetic rotor left side be equipped with the coaxial blind hole of arranging of magnetic rotor, the circumference inner wall of blind hole is equipped with a plurality of hemisphere concave recesses, the connecting axle stretch into in the blind hole with the blind hole cooperation, correspond every hemisphere concave recess department on the connecting axle circumference side position and all be equipped with radial hole of radial extension, every downthehole bottom of radial all is equipped with along the connecting axle and radially arranges the spring, establish the spring along the connecting axle radially be close to the axle core in one side, keep away from the one side of axle core for outer, the outside of every spring all is equipped with the kicking block, the kicking block outside be equipped with hemisphere concave recess assorted spherical briquetting, spherical briquetting outer end stretches into in the hemisphere concave recess and hemisphere concave recess cooperation, the spring keeps compression state, and the centre of sphere of spherical briquetting is located radial hole.
Utilize the resilience force of spring, the spherical briquetting of connecting axle closely cooperates with the hemisphere concave yield in the blind hole for can drive the load axle through the connecting axle when the magnetic rotor rotates and rotate, when the moment of torsion increase, slight relative displacement takes place for magnetic rotor and connecting axle, because relative displacement exists, blind hole lateral wall extrusion spherical briquetting makes it by radial downthehole being impressed, connecting axle and magnetic rotor break away from the block this moment, thereby reach the load when too big, shaft coupling disconnection plays overload protection's effect.
Preferably, a plurality of through holes are formed in the bottom surface of the right side of the conductor rotor and are uniformly distributed on the conductor rotor at equal angles.
Through the design through-hole, can help whole shaft coupling fully to dispel the heat.
Drawings
Fig. 1 is a perspective view of the present coupling.
Fig. 2 is a cross-sectional view of the present coupling.
Fig. 3 is a partially enlarged view of a portion a of fig. 2.
Detailed Description
Referring to fig. 1-3, a permanent magnet eddy current coupling with adjustable transmission efficiency comprises a base 1;
the right part of the base 1 is provided with a first bush 2, the first bush 2 is a circular tube body which is horizontally arranged and moves left and right, the left and right directions of the first bush 2 are open, the first bush 2 is circumferentially provided with a first extending part 21 which radially extends, the first bush 2 is connected with the base 1 through the first extending part 21, a conductor rotor 3 coaxially penetrates through the first bush 2 through a bearing, the conductor rotor 3 is in a cylindrical shape with an open left side, the right side of the conductor rotor 3 is coaxially connected with a motor shaft 32, a magnetic rotor 4 which is coaxially arranged is arranged in the conductor rotor 3, and the left side of the magnetic rotor 4 exceeds the conductor rotor 3; the bottom surface of the right side of the conductor rotor 3 is provided with a plurality of through holes 31, and the through holes 31 are uniformly distributed on the conductor rotor 3 at equal angles.
A second bushing 5 is arranged at the left part of the base 1, the second bushing 5 is a circular tube body which is arranged horizontally and runs left and right, the first bushing 2 and the second bushing 5 are arranged coaxially, the second bushing 5 is open left and right, a second extending part 51 which extends radially is arranged in the circumferential direction of the second bushing 5, a sliding groove 11 which runs left and right is arranged at the position, corresponding to the second extending part 51, on the upper side of the base 1, a sliding block 12 which is matched with the sliding groove 11 is arranged in the sliding groove 11, the second extending part 51 is connected with the sliding block 12, a connecting sleeve 6 is coaxially arranged in the second bushing 5 through a bearing in a penetrating manner, the connecting sleeve 6 is in a cylindrical shape with an opening at the right side, the inner diameter and the outer diameter of the connecting sleeve 6 are correspondingly the same as the inner diameter and the outer diameter of the conductor rotor 3, a shaft hole 61 is arranged on a bottom plate at the left side of the connecting sleeve 6, a load shaft 7 is arranged in the shaft hole 61, and the load shaft 7 is coaxially connected with the magnet rotor 4 through a connecting shaft 8;
an axial distance adjusting device is arranged between the first extension part 21 and the second extension part 51.
Axial distance adjusting device move towards pivot 211 including the level is arranged and about, pivot 211 can follow self axial rotation, pivot 211 circumference outside be equipped with the external screw thread, pivot 211 right-hand member is installed in first extension 21 left side, correspond pivot 211 department on the second extension 51 position and be equipped with pivot 211 assorted screw hole 511, pivot 211 left end passes screw hole 511 and cooperates with it.
The left side of the first lining 2 is provided with a circular groove 22 extending rightwards along the circumferential wall thickness, the right side of the second lining 5 is provided with a sliding ring 52 matched with the circular groove 22 corresponding to the circular groove 22, and the right side of the sliding ring 52 is inserted into the circular groove 22 and is in sliding fit with the circular groove 22.
The first extension part 21 is provided with a guide rod 212 horizontally extending towards the left, the position of the second extension part 51 corresponding to the guide rod 212 is provided with a guide hole 512 matched with the guide rod 212, and the left end of the guide rod 212 passes through the guide hole 512 and is matched with the guide hole 512.
The use method and the advantages of the coupling are as follows: when the coupler is normally used, the distance between the connecting sleeve 6 and the conductor rotor 3 is changed by adjusting the distance adjusting device, so that the air gap size of the conductor rotor 3 is changed, the adjustable range between the magnetic rotor 4 and the conductor rotor 3 is changed, the adjustable range of the transmission efficiency of the coupler is further changed, the integral using effect of the coupler is improved, and the defect that the adjustable degree of the existing permanent magnet eddy current coupler is low when the coupler is used is overcome.
The rotating shaft 211 is equivalent to a lead screw, the second extending portion 51 with the threaded hole 511 is equivalent to a lead screw nut, and the two are matched, when the rotating shaft 211 is rotated, the second extending portion 51 can drive the second bushing 5 and the connecting sleeve 6 to move left and right, so that the distance between the connecting sleeve 6 and the conductor rotor 3 is changed.
The sliding ring 52 is slidably engaged with the annular groove 22, and the guide rod 212 is engaged with the guide hole 512, so as to improve the stability of the second liner 5 and the connection sleeve 6 during movement, thereby maintaining the coaxiality with the conductor rotor 3.
Utilize the resilience force of spring 82, the spherical briquetting 84 of connecting axle 8 closely cooperates with hemisphere recess 411 in the blind hole 41, can drive load axle 7 through connecting axle 8 when making magnetic rotor 4 rotate and rotate, when the moment of torsion increase, magnetic rotor 4 takes place slight relative displacement with connecting axle 8, because relative displacement exists, blind hole 41 lateral wall extrusion spherical briquetting 84 makes it pressed in radial hole 81, connecting axle 8 and magnetic rotor 4 break away from the block this moment, thereby reach the load when too big, shaft coupling disconnection, play overload protection's effect.
Through designing through-hole 31 on conductor rotor 3, can help the abundant heat dissipation of whole shaft coupling.
Claims (6)
1. The utility model provides an adjustable transmission efficiency's permanent magnetism eddy current coupling which characterized in that: comprises a base;
the right part of the base is provided with a first bushing, the first bushing is a circular pipe body which is horizontally arranged and moves left and right, the left and right directions of the first bushing are open, the first bushing is circumferentially provided with a first extending part which extends radially, the first bushing is connected with the base through the first extending part, a conductor rotor coaxially penetrates through the first bushing through a bearing, the conductor rotor is in a cylindrical shape with an open left side, the right side of the conductor rotor is coaxially connected with a motor shaft, a magnetic rotor which is coaxially arranged is arranged in the conductor rotor, and the left side of the magnetic rotor exceeds the conductor rotor;
the left part of the base is provided with a second bushing, the second bushing is a circular tube body which is horizontally arranged and runs in the left and right directions, the first bushing and the second bushing are coaxially arranged, the left and right directions of the second bushing are both open, the second bushing is circumferentially provided with a second extending part which extends in the radial direction, a sliding groove which runs in the left and right directions is arranged at the position, corresponding to the second extending part, on the upper side of the base, a sliding block matched with the sliding groove is arranged in the sliding groove, the second extending part is connected with the sliding block, a connecting sleeve is coaxially arranged in the second bushing in a penetrating manner through a bearing and is in a cylindrical shape with an opening at the right side, the inner diameter and the outer diameter of the connecting sleeve are the same as those of the conductor rotor, a shaft hole is formed in a bottom plate on the left side of the connecting sleeve, a load shaft is arranged in the shaft hole in a penetrating manner, and the load shaft is coaxially connected with the magnetic rotor through a connecting shaft;
an axial distance adjusting device is arranged between the first extending part and the second extending part.
2. The transfer efficiency adjustable permanent magnet eddy current coupling of claim 1, wherein: the axial distance adjusting device comprises a rotating shaft which is horizontally arranged and moves left and right, the rotating shaft can rotate along the axial direction of the rotating shaft, external threads are arranged on the outer side of the circumferential direction of the rotating shaft, the right end of the rotating shaft is installed on the left side of the first extending part, a threaded hole matched with the rotating shaft is formed in the position of the second extending part corresponding to the rotating shaft, and the left end of the rotating shaft penetrates through the threaded hole and is matched with the threaded hole.
3. The transfer efficiency adjustable permanent magnet eddy current coupling of claim 1, wherein: first bush left side be equipped with the ring channel that extends right along its circumference wall thickness department, correspond ring channel department on the position of second bush right side and be equipped with ring channel assorted slip ring, the slip ring right side insert in the ring channel with ring channel sliding fit.
4. The transfer efficiency adjustable permanent magnet eddy current coupling of claim 1, wherein: the first extension part is provided with a guide rod extending horizontally to the left, the position of the second extension part corresponding to the guide rod is provided with a guide hole matched with the guide rod, and the left end of the guide rod penetrates through the guide hole and is matched with the guide hole.
5. The transfer efficiency adjustable permanent magnet eddy current coupling of claim 1, wherein: the magnetic rotor left side be equipped with the coaxial blind hole of arranging of magnetic rotor, the circumference inner wall of blind hole is equipped with a plurality of hemisphere indents, the connecting axle stretch into in the blind hole with the blind hole cooperation, correspond every hemisphere indent department on the connecting axle circumference side position and all be equipped with radial hole of radial extension, every radial downthehole bottom all is equipped with along the connecting axle radially arranges the spring, establish the spring along the connecting axle radially be close to the axle core in one side, keep away from the one side of axle core for outer, the outside of every spring all is equipped with the kicking block, the kicking block outside be equipped with hemisphere indent assorted spherical briquetting, spherical briquetting outer end stretch into in the hemisphere indent with the cooperation of hemisphere indent, the spring keeps compression state, and the centre of sphere of spherical briquetting is located radial hole.
6. The transfer efficiency adjustable permanent magnet eddy current coupling of claim 1, wherein: the bottom surface of the right side of the conductor rotor is provided with a plurality of through holes which are uniformly distributed on the conductor rotor at equal angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111444830.XA CN114268211B (en) | 2021-11-30 | 2021-11-30 | Permanent magnet eddy current coupler with adjustable transmission efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111444830.XA CN114268211B (en) | 2021-11-30 | 2021-11-30 | Permanent magnet eddy current coupler with adjustable transmission efficiency |
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| Publication Number | Publication Date |
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| CN114268211A true CN114268211A (en) | 2022-04-01 |
| CN114268211B CN114268211B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111444830.XA Active CN114268211B (en) | 2021-11-30 | 2021-11-30 | Permanent magnet eddy current coupler with adjustable transmission efficiency |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903075A (en) * | 1998-06-10 | 1999-05-11 | Magna Force, Inc. | Permanent magnet coupler with soft start adjustment system |
| WO2011049035A1 (en) * | 2009-10-19 | 2011-04-28 | 株式会社キトー | Torque transmission device |
| CN102647059A (en) * | 2012-04-10 | 2012-08-22 | 江苏大学 | Remote intelligent speed control axial asynchronous magnetic coupling and speed regulating method |
| CN208489787U (en) * | 2018-05-25 | 2019-02-12 | 天津吉玄节能技术股份有限公司 | A kind of axial movement cartridge type permanent-magnet speed governor |
| CN110336434A (en) * | 2019-07-03 | 2019-10-15 | 南京渥孚磁动力科技有限公司 | A kind of two-sided transmission permanent-magnet eddy current magnetic hysteresis shaft coupling |
| CN112542934A (en) * | 2020-07-19 | 2021-03-23 | 陈莉芳 | Permanent magnet speed regulator for moving magnetic steel |
-
2021
- 2021-11-30 CN CN202111444830.XA patent/CN114268211B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5903075A (en) * | 1998-06-10 | 1999-05-11 | Magna Force, Inc. | Permanent magnet coupler with soft start adjustment system |
| WO2011049035A1 (en) * | 2009-10-19 | 2011-04-28 | 株式会社キトー | Torque transmission device |
| CN102647059A (en) * | 2012-04-10 | 2012-08-22 | 江苏大学 | Remote intelligent speed control axial asynchronous magnetic coupling and speed regulating method |
| CN208489787U (en) * | 2018-05-25 | 2019-02-12 | 天津吉玄节能技术股份有限公司 | A kind of axial movement cartridge type permanent-magnet speed governor |
| CN110336434A (en) * | 2019-07-03 | 2019-10-15 | 南京渥孚磁动力科技有限公司 | A kind of two-sided transmission permanent-magnet eddy current magnetic hysteresis shaft coupling |
| CN112542934A (en) * | 2020-07-19 | 2021-03-23 | 陈莉芳 | Permanent magnet speed regulator for moving magnetic steel |
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| CN114268211B (en) | 2023-09-01 |
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