CN114268211B - Permanent magnet eddy current coupler with adjustable transmission efficiency - Google Patents
Permanent magnet eddy current coupler with adjustable transmission efficiency Download PDFInfo
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- CN114268211B CN114268211B CN202111444830.XA CN202111444830A CN114268211B CN 114268211 B CN114268211 B CN 114268211B CN 202111444830 A CN202111444830 A CN 202111444830A CN 114268211 B CN114268211 B CN 114268211B
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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
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Abstract
A permanent magnet eddy current coupler with adjustable transmission efficiency comprises a base; the right part on the base is provided with a first bushing, a first extension part is arranged in the circumferential direction of 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; the left part on the base is provided with a second bushing, the second bushing is circumferentially provided with a second extension part, a chute is arranged at the position of the base corresponding to the second extension part, a sliding block is arranged in the chute, the second extension part is connected with the sliding block, a connecting sleeve is arranged in the second bushing, the connecting sleeve is matched with the conductor rotor in size, a shaft hole is arranged on the connecting sleeve, a load shaft penetrates through the shaft hole, and the load shaft is coaxially connected with the magnetic rotor through the connecting shaft; an axial distance adjusting device is arranged between the first extension part and the second extension part. The coupling can change the adjustable range of the transmission efficiency.
Description
Technical Field
The invention relates to a permanent magnet eddy current coupler 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, wherein 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 coupler has the advantages of high efficiency, energy saving and high transmission efficiency, and is long in service life and convenient to maintain. The existing permanent magnet eddy current coupler has some defects when in use: when the adjustable transmission device is used, the size of the air gap of the conductor rotor 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 coupler with adjustable transmission efficiency, which can adjust the size of an air gap of a conductor rotor when in use, and change the adjustable range of the transmission efficiency, thereby increasing the adjustable degree of the transmission efficiency of the coupler.
In order to solve the technical problems, the invention provides a permanent magnet eddy current coupler with adjustable transmission efficiency, which comprises a base;
the right part on the base is provided with a first bushing, the first bushing is a round tube body which is horizontally arranged and runs left and right, the left and right directions of the first bushing are all open, the first bushing is circumferentially provided with a first extending part which radially extends, the first bushing is connected with the base through the first extending part, a conductor rotor coaxially penetrates through a bearing in the first bushing, 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, the conductor rotor is internally provided with a magnetic rotor which is coaxially arranged, and the left side of the magnetic rotor exceeds the conductor rotor;
the left part on the base is provided with a second bushing, the second bushing is a round tube body which is horizontally arranged and moves left and right, the first bushing and the second bushing are coaxially arranged, the left and right directions of the second bushing are all open, the second bushing is circumferentially provided with a radially extending second extension part, a left and right moving chute is arranged at the position on the upper side of the base corresponding to the second extension part, a sliding block matched with the sliding chute is arranged in the sliding chute, the second extension part is connected with the sliding block, a connecting sleeve is coaxially arranged in the second bushing in a penetrating manner through a bearing, the connecting sleeve is in a cylindrical shape with an open right side, the inner diameter and the outer diameter of the connecting sleeve are correspondingly the same as those of a conductor rotor, a shaft hole is formed in a bottom plate on the left side of the connecting sleeve, and 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 extension part and the second extension part.
For the sake of simple explanation, the permanent magnet eddy current coupler with adjustable transmission efficiency is hereinafter referred to as the coupler.
The use method and the advantages of the coupling are that: 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 size of an air gap of the conductor rotor is changed, the adjustable range between the magnetic rotor and the conductor rotor is changed, the transmission efficiency adjustable range of the coupler is further changed, the overall use effect of the coupler is improved, and the defect that the conventional permanent magnet eddy current coupler is low in adjustable degree during use is overcome.
In order to achieve better use effect of the coupling, the preferred scheme is as follows:
preferably, the axial distance adjusting device comprises a horizontally arranged rotating shaft which moves left and right, the rotating shaft can axially rotate along the rotating shaft, an external thread is arranged on the outer side of the circumference 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 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.
The rotating shaft is equivalent to a screw rod, the second extension part with the threaded hole is equivalent to a screw rod nut, and the screw rod nut are matched, and when the rotating shaft is rotated, the second extension part drives the second bushing and the connecting sleeve to move left and right, 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 rightward along the circumferential wall thickness, 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 to be in sliding fit with the annular groove.
Preferably, the first extension part is provided with a guide rod extending horizontally leftwards, 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 passes 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 in fit with the guide hole so as 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 and the conductor rotor is maintained.
Preferably, the left side of the magnetic rotor is provided with a blind hole coaxially arranged with the magnetic rotor, the circumferential inner wall of the blind hole is provided with a plurality of hemispherical recesses, the connecting shaft stretches into the blind hole to be matched with the blind hole, radial holes which extend radially are formed in the positions corresponding to the hemispherical recesses on the circumferential side surfaces of the connecting shaft, springs are radially arranged at the bottoms of the radial holes along the connecting shaft, the springs are arranged on one side, close to the shaft core, of the connecting shaft radially and on one side, far away from the shaft core, of the connecting shaft, ejector blocks are arranged on the outer side of each spring, spherical pressing blocks matched with the hemispherical recesses are arranged on the outer sides of the ejector blocks, the outer ends of the spherical pressing blocks stretch into the hemispherical recesses to be matched with the hemispherical recesses, the springs are kept in a compressed state, and the spherical centers of the spherical pressing blocks are located in the radial holes.
The spherical pressing block of the connecting shaft is tightly matched with the hemispherical concave in the blind hole by the resilience force of the spring, so that the magnetic rotor can drive the load shaft to rotate through the connecting shaft when rotating, when the torque is increased, the magnetic rotor and the connecting shaft generate slight relative displacement, the side wall of the blind hole presses the spherical pressing block to enable the spherical pressing block to be pressed into the radial hole due to the existence of the relative displacement, and at the moment, the connecting shaft and the magnetic rotor are separated from clamping, so that the coupling is disconnected when the load is overlarge, and the overload protection effect is achieved.
Preferably, the bottom surface of the right side of the conductor rotor is provided with a plurality of through holes, and the through holes are uniformly distributed on the conductor rotor at equal angles.
Through the design through-hole, can help whole shaft coupling fully 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 partial 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 on the base 1 is provided with a first bushing 2, the first bushing 2 is a round tube body which is horizontally arranged and runs left and right, the left and right directions of the first bushing 2 are all open, the first bushing 2 is circumferentially provided with a first extending part 21 which radially extends, the first bushing 2 is connected with the base 1 through the first extending part 21, a conductor rotor 3 is coaxially arranged in the first bushing 2 in a penetrating way through a bearing, the conductor rotor 3 is in a cylinder shape with an open left side, the right side of the conductor rotor 3 is coaxially connected with a motor shaft 32, the inside of the conductor rotor 3 is provided with a coaxially arranged magnetic rotor 4, and the left side of the magnetic rotor 4 exceeds the conductor rotor 3; the right bottom surface 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.
The left part on the base 1 is provided with a second bushing 5, the second bushing 5 is a round tube body which is horizontally arranged and moves left and right, the first bushing 2 and the second bushing 5 are coaxially arranged, the left and right directions of the second bushing 5 are both open, the second bushing 5 is circumferentially provided with a second extending part 51 which extends radially, the position on the upper side of the base 1, corresponding to the second extending part 51, is provided with a sliding groove 11 which moves left and right, the sliding groove 11 is internally provided with a sliding block 12 matched with the sliding groove 11, the second extending part 51 is connected with the sliding block 12, the second bushing 5 is coaxially provided with a connecting sleeve 6 through a bearing, the connecting sleeve 6 is in a cylinder shape with an open 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 on the left side of the connecting sleeve 6, the shaft hole 61 is internally provided with a load shaft 7, and the load shaft 7 is coaxially connected with the magnetic rotor 4 through a connecting shaft 8;
an axial distance adjusting device is provided between the first extension 21 and the second extension 51.
The axial distance adjusting device comprises a rotating shaft 211 which is horizontally arranged and moves left and right, the rotating shaft 211 can axially rotate along the rotating shaft 211, external threads are arranged on the outer side of the circumference of the rotating shaft 211, the right end of the rotating shaft 211 is arranged on the left side of the first extension part 21, a threaded hole 511 matched with the rotating shaft 211 is formed in the position of the second extension part 51 corresponding to the rotating shaft 211, and the left end of the rotating shaft 211 penetrates through the threaded hole 511 and is matched with the threaded hole 511.
The left side of the first bushing 2 is provided with an annular groove 22 extending rightward along the circumferential wall thickness, a sliding ring 52 matched with the annular groove 22 is arranged at the position corresponding to the annular groove 22 on the right side of the second bushing 5, and the right side of the sliding ring 52 is inserted into the annular groove 22 to be in sliding fit with the annular groove 22.
The first extension portion 21 is provided with a guide rod 212 extending horizontally leftwards, the position of the second extension portion 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 left side of magnetic rotor 4 be equipped with the coaxial blind hole 41 of arranging of magnetic rotor 4, the circumference inner wall of blind hole 41 is equipped with a plurality of hemisphere recesses 411, connecting axle 8 stretch into blind hole 41 in with blind hole 41 cooperation, connecting axle 8 circumference side position on correspond every hemisphere recess 411 department all be equipped with radial hole 81 that extends, the bottom in every radial hole 81 all is equipped with along connecting axle 8 radial arrangement spring 82, establish spring 82 along connecting axle 8 radial be close to the axle core in one side, keep away from the axle core one side outside, the outside of every spring 82 all is equipped with kicking block 83, the kicking block 83 outside is equipped with hemisphere recess 411 assorted spherical briquetting 84, spherical briquetting 84 outer end stretches into hemisphere recess 411 in with hemisphere recess 411 cooperation, spring 82 keeps compressed state, and the sphere center of spherical briquetting 84 is located radial hole 81.
The use method and the advantages of the coupling are that: 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 size of an air gap of the conductor rotor 3 is changed, the adjustable range between the magnetic rotor 4 and the conductor rotor 3 is changed, the transmission efficiency adjustable range of the coupler is further changed, the overall use effect of the coupler is improved, and the defect that the conventional permanent magnet eddy current coupler is low in adjustable degree during use is overcome.
The rotating shaft 211 corresponds to a screw rod, the second extending portion 51 with the threaded hole 511 corresponds to a screw rod nut, and when the rotating shaft 211 is rotated, the second extending portion 51 drives 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 bush 5 and the connecting sleeve 6 during movement, thereby maintaining coaxiality with the conductor rotor 3.
By means of the resilience force of the spring 82, the spherical pressing block 84 of the connecting shaft 8 is tightly matched with the hemispherical concave 411 in the blind hole 41, so that the magnetic rotor 4 can drive the load shaft 7 to rotate through the connecting shaft 8 when rotating, when torque is increased, the magnetic rotor 4 and the connecting shaft 8 are slightly displaced relatively, the side wall of the blind hole 41 presses the spherical pressing block 84 to be pressed into the radial hole 81 due to the existence of the relative displacement, and at the moment, the connecting shaft 8 and the magnetic rotor 4 are disengaged, and therefore, when the load is overlarge, the coupling is disconnected, and the overload protection effect is achieved.
By designing the through holes 31 in the conductor rotor 3, it is possible to assist in sufficient heat dissipation of the entire coupling.
Claims (2)
1. The utility model provides a permanent magnetism vortex coupling of adjustable transmission efficiency which characterized in that: comprises a base;
the right part on the base is provided with a first bushing, the first bushing is a round tube body which is horizontally arranged and runs left and right, the left and right directions of the first bushing are all open, the first bushing is circumferentially provided with a first extending part which radially extends, the first bushing is connected with the base through the first extending part, a conductor rotor coaxially penetrates through a bearing in the first bushing, 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, the conductor rotor is internally provided with a magnetic rotor which is coaxially arranged, and the left side of the magnetic rotor exceeds the conductor rotor;
the left part on the base is provided with a second bushing, the second bushing is a round tube body which is horizontally arranged and moves left and right, the first bushing and the second bushing are coaxially arranged, the left and right directions of the second bushing are all open, the second bushing is circumferentially provided with a radially extending second extension part, a left and right moving chute is arranged at the position on the upper side of the base corresponding to the second extension part, a sliding block matched with the sliding chute is arranged in the sliding chute, the second extension part is connected with the sliding block, a connecting sleeve is coaxially arranged in the second bushing in a penetrating manner through a bearing, the connecting sleeve is in a cylindrical shape with an open right side, the inner diameter and the outer diameter of the connecting sleeve are correspondingly the same as those of a conductor rotor, a shaft hole is formed in a bottom plate on the left side of the connecting sleeve, and 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 extension part and the second extension part;
the axial distance adjusting device comprises a rotating shaft which is horizontally arranged and moves left and right, the rotating shaft can axially rotate along the rotating shaft, an external thread is arranged on the outer side of the circumference of the rotating shaft, the right end of the rotating shaft is arranged on the left side of the first extension part, a threaded hole matched with the rotating shaft is formed in the position of the second extension 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;
the left side of the first bushing is provided with an annular groove extending rightward along the circumferential wall thickness, a sliding ring matched with the annular groove is arranged at the position corresponding to the annular groove on the right side of the second bushing, and the right side of the sliding ring is inserted into the annular groove to be in sliding fit with the annular groove;
the first extension part is provided with a guide rod which horizontally extends leftwards, 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 passes through the guide hole and is matched with the guide hole;
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 hemispheric recesses, the connecting axle stretch into in the blind hole with the blind hole cooperation, correspond every hemispheric recess on the connecting axle circumference side position and all be equipped with radial extension's radial hole, the bottom in every radial hole all is equipped with along the connecting axle radial arrangement spring, establish the spring along the connecting axle radial in being close to the one side of axle core, one side of keeping away from the axle core is outside, the outside of every spring all is equipped with the kicking block, the kicking block outside is equipped with the spherical briquetting with hemispheric recess assorted, the spherical briquetting outer end stretches into in the hemispheric recess and hemispheric recess cooperation, the spring keeps compressed state, and the centre of sphere of spherical briquetting is located radial hole.
2. The permanent magnet eddy current coupling with adjustable transmission efficiency according to claim 1, wherein: the bottom surface of the right side of the conductor rotor is provided with a plurality of through holes, and the through holes 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 |
|---|---|
| CN114268211A CN114268211A (en) | 2022-04-01 |
| CN114268211B true 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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| Publication number | Publication date |
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| CN114268211A (en) | 2022-04-01 |
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