CN103532341A - Permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation - Google Patents
Permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation Download PDFInfo
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- CN103532341A CN103532341A CN201310542565.8A CN201310542565A CN103532341A CN 103532341 A CN103532341 A CN 103532341A CN 201310542565 A CN201310542565 A CN 201310542565A CN 103532341 A CN103532341 A CN 103532341A
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Abstract
The invention discloses a permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation. The permanent magnetic eddy speed regulator capable of achieving the fast magnetism regulation comprises a speed reducing motor (1), an electric brush (2), a bevel gear mechanism (3), a load shaft (4), a sliding ring (5), a right bearing (6), an inner rotor (7), a right permanent magnetic rotor end cover (8), a right end ring (9), a magnetism regulating ring (10), a permanent magnetic rotor (11), a left rotor end cover (12), a left bearing (13), a motor driving shaft (14), a left end cover (15), a left end ring (16) and a driving side iron core (17), wherein the speed reducing motor (1) is fixed at a shaft extending end of the inner rotor (7); the output shaft of the speed reducing motor (1) is connected with the bevel gear mechanism (3); the electric brush (2) is in sliding contact and electrical connection with the sliding ring (5). According to the permanent magnetic eddy speed regulator, the magnetic resistance on the inner side of a permanent magnet is regulated through the magnetism regulating ring so as to change the intensity of the magnetic field on the outer side of the permanent magnetic rotor, thereby achieving the purpose of regulating coupling moment and speed.
Description
Technical field:
What the present invention relates to is a kind of permanent-magnet eddy current speed regulating device, refers more particularly to a kind of permanent-magnet eddy current adjuster of quick adjustable magnetic, belongs to the technical field of permanent-magnet eddy current transmission.
Background technology:
Common mechanical transmission, mainly by modes such as chain drive, frictional drive, hydraulic drive, gear drive and belt-type transmissions, is directly connected to load on line shaft through plant equipment, and machine driving exists the problems such as mechanical wear, the higher-order of oscillation.In addition, although during electric motor starting, the peak value of starting current and institute's bringing onto load size are irrelevant, connect heavy load directly startup can extend the motor start-up time, increase that the motor feels hot and temperature rise, affect motor useful life.For fear of this problem, user increases as much as possible capacity motor when to choice of electrical machine, and this had both increased cost input one time, had caused again motor low load with strong power phenomenon, had reduced efficiency and the loss that increases electric power, waste mass energy.
Permanent magnetic vortex drive device can be isolated motor and driven shaft, reduces dither and noise, reduces the harmful effect of load disturbance to machine operation point, greatly improves the operational efficiency of whole system, and has long working life, does not have the advantage of harmonic pollution.And magnetic actuator can play the effect of soft start, strengthen motor bringing onto load and start ability.
The general structure of permanent magnet transmission is: outside internal rotor inner side or external rotor, with Surface Mount or embedded mode, arrange the permanent magnet that magnetic pole is alternate, be called p-m rotor; Correspondingly, relative with permanent magnet is conductor rotor.P-m rotor and conductor rotor are coaxially settled, and all can freely independently rotate.
The operation principle of permanent magnet transmission is: when motor driving shaft drives rotating conductor rotor, owing to existing relative motion between p-m rotor and conductor rotor, according to the law of electromagnetic induction, sliver in magnetic force line cutting conductor rotor, on sliver, produce moving raw electromotive force, under moving raw electromotive force excitation, produce eddy current, electric current produces simultaneously Induced magnetic field and permanent magnet magnetic field interactions, traction permanent magnetic rotor motion.By the two-way flow of energy, permanent magnet rotor also can be used as driving shaft, and conductor rotor is as driven shaft, and mode of speed regulation is identical.
The gas length that patent ZL200710134483.4 proposes by adjusting between permanent magnet and conductor rotor regulates air-gap field intensity, and the size of coupling torque is controlled, and reaches load speed governing object, and has proposed related device---air gap adjuster.But in practical application, because gas length is original just little, scope is only within several millimeters to several centimetres, and the attraction between permanent magnet and conductor rotor is very large, and not only this mechanism is difficult to realization,, and the precision of air gap adjustment and smoothness can not be guaranteed.Can also adopt in addition the length of action of adjusting between p-m rotor and conductor rotor to regulate coupling torque size, thereby realize load speed governing, but along with p-m rotor area of contact reduces, outside part permanent magnet will be directly exposed to, it can attract metal fragment around, airborne magnetic dust, machine tool etc., these foreign material attracted to p-m rotor surface and even enter in working gas gap, will have a strong impact on the normal operation of speed regulator.
The present invention's employing neither changes working gas gap length and does not also change the way of p-m rotor area of contact, by the ingehious design to permanent-magnet eddy current speed regulator, air-gap field intensity is adjusted flexibly, reaches the stepless adjustment object of axle carry-over moment and speed.
Summary of the invention:
Technical problem: it is large that the technical issues that need to address of the present invention are to provide a kind of transmitted power, output torque adjustment scope is large, and unit volume is exerted oneself many, and can adjust in real time the operating mode permanent magnetic vortex drive device of (comprising torque rotary speed and power output).
Technical scheme: for solving the problems of the technologies described above, the invention provides a kind of permanent-magnet eddy current speed regulator of quick adjustable magnetic, the permanent-magnet eddy current speed regulator of this quick adjustable magnetic comprises: gear motor, brush, bevel gear mechanism, bearing axle, slip ring, right bearing, internal rotor, p-m rotor right end cap, right-hand member ring, adjustable magnetic ring, p-m rotor, rotor left end cap, left bearing, motor driving shaft, left end cap, left end ring, drive end iron core, sliver;
Described gear motor is fixed on the shaft extension end of internal rotor, the output shaft of gear motor is connected with bevel gear mechanism, brush and slip ring sliding contact also keep being electrically connected, by brush and slip ring, provide gear motor required working power, one end of bevel gear mechanism is fixedly connected with bearing axle, described internal rotor inner side and left bearing, right bearing connects, pass through left bearing, right bearing makes relative motion between internal rotor and bearing axle, internal rotor outside is rigidly connected with adjustable magnetic ring, outside around adjustable magnetic ring is annular permanent-magnet rotor, the two sides of p-m rotor are connected with p-m rotor left end cap with p-m rotor right end cap respectively, p-m rotor left end cap and bearing axle are rigidly connected, outside around p-m rotor is that annular drive end is unshakable in one's determination, between drive end iron core and p-m rotor, by air gap, realize magnetic Field Coupling, at drive end iron core, towards air gap, have a plurality of grooves that distribute along even circumferential and be equipped with sliver in each groove, the two ends of sliver are respectively by left end ring and right-hand member ring short circuit, form a cagelike structure conductor,
Described drive end iron core left side is connected with left end cap, and left end cap and driving shaft are rigidly connected.Described motor driving shaft, left end cap, left end ring, right-hand member ring, drive end iron core and sliver form the drive part of speed regulator.
Preferably, p-m rotor adopts permanent magnet and alternate structure unshakable in one's determination, and wherein the magnetizing direction of adjacent permanent magnet is contrary each other, and the polarity that forms N-S-S-N is relative between two; Described adjustable magnetic ring is by non-magnetizer and magnetic conductor successively forming of alternate form.
Preferably, internal rotor and adjustable magnetic ring rotate around bearing axle, change the relative position of adjustable magnetic ring and p-m rotor, thereby quick adjustment air-gap field are realized the adjusting of load speed.
Beneficial effect: the present invention adjusts the size of magnetic resistance inside permanent magnet by adjustable magnetic ring, thus the magnetic field intensity in p-m rotor outside changed, realize the object that coupling torque and speed regulate.
Owing to adopting this structure of adjustable magnetic ring, regulate the required vertical force of air gap to change the required moment of torsion of rotation adjustable magnetic ring into, greatly reduced actuating force, and because gear motor and the bevel gear governor motion on internal rotor is fixed in employing, improved flexibility and the stability of real-time speed regulating, there is compact conformation, be applicable to high-power applications and fast response time.In addition, this speed regulator air gap remains constant, adopts the mode of rotation adjustable magnetic ring can realize quick adjustment.Meanwhile, magnetism-regulating structure of the present invention has avoided p-m rotor existence to be exposed to the part outside air gap, has solved preferably the problem of air gap suction impurity.
Accompanying drawing explanation
Fig. 1 is the profile of permanent-magnet eddy current speed regulator of the present invention
Fig. 2 is the vertical view of p-m rotor
Fig. 3 is the vertical view of adjustable magnetic ring
Fig. 4 is the schematic diagram of minimum load state
Fig. 5 is the schematic diagram of maximum output state
Fig. 6 is bevel gear speed regulator scheme of installation
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the permanent-magnet eddy current speed regulator of described quick adjustable magnetic adopts adjustable magnetic ring to regulate air-gap field intensity, comprises gear motor 1, brush 2, bevel gear mechanism 3, bearing axle 4, slip ring 5, right bearing 6, internal rotor 7, p-m rotor right end cap 8, right-hand member ring 9, adjustable magnetic ring 10, p-m rotor 11, rotor left end cap 12, left bearing 13, motor driving shaft 14, left end cap 15, left end ring 16, drive end iron core 17, sliver 18, permanent magnet 19, iron core 20, magnetic conductor 21, non-magnetizer 22.
Described gear motor 1 is fixed on the shaft extension end of internal rotor 7, the output shaft of gear motor is connected with bevel gear mechanism 3, brush 2 is electrically connected with slip ring 5 sliding contacts maintenance, by brush and slip ring, provide gear motor 1 required working power, one end of bevel gear mechanism 3 is fixedly connected with bearing axle 4, described internal rotor 7 inner sides and left bearing 13, right bearing 6 connects, by can be movable relatively between bearing internal rotor 7 and bearing axle 4, internal rotor 7 outsides and adjustable magnetic ring 10 are rigidly connected, outside around adjustable magnetic ring is annular permanent-magnet rotor 11, the two sides of p-m rotor 11 are connected with p-m rotor left end cap 12 with p-m rotor right end cap 8 respectively, p-m rotor left end cap 12 is rigidly connected with bearing axle 4, outside around p-m rotor 11 is annular drive end iron core 17, between drive end unshakable in one's determination 17 and p-m rotor 11, by air gap, realize magnetic Field Coupling, at drive end iron core 17, towards air gap, have a plurality of grooves that distribute along even circumferential and in each groove, be equipped with sliver 18, the two ends of sliver 18 are respectively by left end ring 16 and right-hand member ring 9 short circuits, form a cagelike structure conductor.Described drive end 17 left sides unshakable in one's determination are connected with left end cap 15, and left end cap 15 is rigidly connected with driving shaft 14.Described motor driving shaft 14, left end cap 15, left end ring 16, right-hand member ring 9, drive end unshakable in one's determination 17 and sliver 18 form the drive part of speed regulator.
As seen from Figure 2, p-m rotor 11 adopts the structure that permanent magnet 19 is alternate with iron core 20.Wherein the magnetizing direction of adjacent permanent magnet 19 is contrary each other, and the polarity that forms N-S-S-N is relative between two; Described adjustable magnetic ring 10 is by non-magnetizer 22 and magnetic conductor 21 successively forming of alternate form.
As seen from Figure 3, adjustable magnetic ring 10 forms by non-magnetizer 22 is alternate successively with magnetic conductor 21.
By Fig. 4,5 known adjustable magnetic principles of the present invention, when the non-magnetizer of adjustable magnetic ring and permanent magnet over against time (as Fig. 4), magnetic resistance is maximum inside permanent magnet, gap density is maximum outside p-m rotor, coupling torque is the highest; When the magnetic conductor of adjustable magnetic ring and permanent magnet over against time (as Fig. 5), magnetic resistance is minimum inside permanent magnet, the excitation ability of p-m rotor is seriously undermined, now outside p-m rotor, the magnetic flux density of air gap is minimum, the torque of transmission is minimum.Adjust adjustable magnetic ring and make them between above-mentioned two positions, realize the adjusting of load speed.
As seen from Figure 6, gear motor is fixed on internal rotor outrigger shaft, gear motor output shaft is connected with bevel gear head, bevel gear seat is fixed on bearing axle, bevel gear head is connected by mechanical engagement with bevel gear seat, when gear motor rotates, drive rotating shaft bevel gear head to rotate, make the position of the relative bearing axle of adjustable magnetic ring, magnetic guiding loop, p-m rotor left end cap etc. that relative changes occur.
Adjustable magnetic ring 10 can be used to quick adjustment air-gap field, and speed control principle is as follows: when the non-magnetizer of adjustable magnetic ring and permanent magnet over against time, magnetic resistance is maximum inside permanent magnet, gap density is maximum outside p-m rotor, coupling torque is the highest; When the magnetic conductor of adjustable magnetic ring and permanent magnet over against time, magnetic resistance is minimum inside permanent magnet, the excitation ability of p-m rotor is seriously undermined, now outside p-m rotor, the magnetic flux density of air gap is minimum, the torque of transmission is minimum.Adjust adjustable magnetic ring and make them between above-mentioned two positions, realize the adjusting of load speed.
Driving shaft and bearing axle can exchange, and realize the two-way flow of energy.
The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection scope of the present invention.
Claims (3)
1. the permanent-magnet eddy current speed regulator of a quick adjustable magnetic, it is characterized in that, the permanent-magnet eddy current speed regulator of this quick adjustable magnetic comprises: gear motor (1), brush (2), bevel gear mechanism (3), bearing axle (4), slip ring (5), right bearing (6), internal rotor (7), p-m rotor right end cap (8), right-hand member ring (9), adjustable magnetic ring (10), p-m rotor (11), rotor left end cap (12), left bearing (13), motor driving shaft (14), left end cap (15), left end ring (16), drive end (17), sliver (18) unshakable in one's determination;
Described gear motor (1) is fixed on the shaft extension end of internal rotor (7), the output shaft of gear motor (1) is connected with bevel gear mechanism (3), brush (2) is electrically connected with slip ring (5) sliding contact maintenance, by brush and slip ring, provide gear motor (1) required working power, one end of bevel gear mechanism (3) is fixedly connected with bearing axle (4), described internal rotor (7) inner side and left bearing (13), right bearing (6) connects, by left bearing (13), right bearing (6) makes relative motion between internal rotor (7) and bearing axle (4), internal rotor (7) outside is rigidly connected with adjustable magnetic ring (10), outside around adjustable magnetic ring is annular permanent-magnet rotor (11), the two sides of p-m rotor (11) are connected with p-m rotor left end cap (12) with p-m rotor right end cap (8) respectively, p-m rotor left end cap (12) is rigidly connected with bearing axle (4), outside around p-m rotor (11) is annular drive end (17) unshakable in one's determination, between drive end (17) unshakable in one's determination and p-m rotor (11), by air gap, realize magnetic Field Coupling, at drive end (17) unshakable in one's determination, towards air gap, have a plurality of grooves that distribute along even circumferential and in each groove, be equipped with sliver (18), the two ends of sliver (18) are respectively by left end ring (16) and right-hand member ring (9) short circuit, form a cagelike structure conductor,
Described drive end (17) unshakable in one's determination left side is connected with left end cap (15), and left end cap (15) is rigidly connected with driving shaft (14); Described motor driving shaft (14), left end cap (15), left end ring (16), right-hand member ring (9), drive end (17) unshakable in one's determination and sliver (18) form the drive part of speed regulator.
2. the permanent-magnet eddy current speed regulator of quick adjustable magnetic according to claim 1, it is characterized in that, p-m rotor (11) adopts permanent magnet (19) and (20) alternate structure unshakable in one's determination, and wherein the magnetizing direction of adjacent permanent magnet (19) is contrary each other, and the polarity that forms N-S-S-N is relative between two; Described adjustable magnetic ring (10) is by non-magnetizer (22) and magnetic conductor (21) the successively formation of alternate form.
3. according to the permanent-magnet eddy current speed regulator of the quick adjustable magnetic described in claim 1 and 2, it is characterized in that, internal rotor (7) and adjustable magnetic ring (10) rotate around bearing axle (4), change the relative position of adjustable magnetic ring (10) and p-m rotor (11), thereby quick adjustment air-gap field, realizes the adjusting of load speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310542565.8A CN103532341B (en) | 2013-10-25 | 2013-10-25 | A kind of permanent-magnet eddy current speed regulator of quick adjustable magnetic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310542565.8A CN103532341B (en) | 2013-10-25 | 2013-10-25 | A kind of permanent-magnet eddy current speed regulator of quick adjustable magnetic |
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| CN103532341A true CN103532341A (en) | 2014-01-22 |
| CN103532341B CN103532341B (en) | 2015-11-18 |
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| CN201310542565.8A Expired - Fee Related CN103532341B (en) | 2013-10-25 | 2013-10-25 | A kind of permanent-magnet eddy current speed regulator of quick adjustable magnetic |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852550A (en) * | 2015-04-14 | 2015-08-19 | 苏州威莫磁力传动技术有限公司 | Claw-pole magnetism-gathering permanent-magnetic speed regulator |
| WO2016045154A1 (en) * | 2014-09-25 | 2016-03-31 | 刁俊起 | Fixed magnetic gap permanent magnet speed governor |
| CN105896911A (en) * | 2015-01-15 | 2016-08-24 | 李启飞 | 517 type ball screw electric speed regulation disc type magnetic coupling |
| CN109831087A (en) * | 2019-04-15 | 2019-05-31 | 金陵科技学院 | A kind of NEW TYPE OF COMPOSITE permanent-magnet eddy current governor |
| CN110542568A (en) * | 2019-09-20 | 2019-12-06 | 西南交通大学 | Rail eddy current braking performance testing device and testing method thereof |
| CN112870459A (en) * | 2021-01-19 | 2021-06-01 | 温州医科大学附属第一医院 | Portable drainage bag |
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| WO2011018011A1 (en) * | 2009-08-11 | 2011-02-17 | Yu Yali | High efficient electromagnetic torque adjustable boiler-grate permanent-magnet coupling |
| CN201781402U (en) * | 2010-08-17 | 2011-03-30 | 陈传松 | Energy-saving speed-regulating permanent-magnet driver |
| CN203537213U (en) * | 2013-10-25 | 2014-04-09 | 东南大学 | Permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation |
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2013
- 2013-10-25 CN CN201310542565.8A patent/CN103532341B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011018011A1 (en) * | 2009-08-11 | 2011-02-17 | Yu Yali | High efficient electromagnetic torque adjustable boiler-grate permanent-magnet coupling |
| CN201781402U (en) * | 2010-08-17 | 2011-03-30 | 陈传松 | Energy-saving speed-regulating permanent-magnet driver |
| CN203537213U (en) * | 2013-10-25 | 2014-04-09 | 东南大学 | Permanent magnetic eddy speed regulator capable of achieving fast magnetism regulation |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045154A1 (en) * | 2014-09-25 | 2016-03-31 | 刁俊起 | Fixed magnetic gap permanent magnet speed governor |
| CN105896911A (en) * | 2015-01-15 | 2016-08-24 | 李启飞 | 517 type ball screw electric speed regulation disc type magnetic coupling |
| CN104852550A (en) * | 2015-04-14 | 2015-08-19 | 苏州威莫磁力传动技术有限公司 | Claw-pole magnetism-gathering permanent-magnetic speed regulator |
| CN104852550B (en) * | 2015-04-14 | 2017-11-14 | 苏州威莫磁力传动技术有限公司 | A kind of pawl pole magneticfocusing permanent-magnet speed governor |
| CN109831087A (en) * | 2019-04-15 | 2019-05-31 | 金陵科技学院 | A kind of NEW TYPE OF COMPOSITE permanent-magnet eddy current governor |
| CN109831087B (en) * | 2019-04-15 | 2023-08-08 | 金陵科技学院 | Novel compound permanent magnet eddy current speed regulator |
| CN110542568A (en) * | 2019-09-20 | 2019-12-06 | 西南交通大学 | Rail eddy current braking performance testing device and testing method thereof |
| CN112870459A (en) * | 2021-01-19 | 2021-06-01 | 温州医科大学附属第一医院 | Portable drainage bag |
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