CN203457028U - Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure - Google Patents
Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure Download PDFInfo
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- CN203457028U CN203457028U CN201320563010.7U CN201320563010U CN203457028U CN 203457028 U CN203457028 U CN 203457028U CN 201320563010 U CN201320563010 U CN 201320563010U CN 203457028 U CN203457028 U CN 203457028U
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Abstract
The utility model provides a coaxial sleeve type permanent magnetic eddy current coupling employing a magnet-gathering type magnetic circuit structure, and belongs to the technical field of permanent magnetic eddy current transmission. Compared with the conventional coaxial sleeve type permanent magnetic eddy current coupling, the coaxial sleeve type permanent magnetic eddy current coupling employing the magnet-gathering type magnetic circuit structure is advantageous in that permanent magnetic materials employed by the coupling are less, generated torque or transmitted power by unit mass (volume) permanent magnetic materials is higher, the integral structural size is smaller, the coupling can be directly arranged on a rotating shaft of a motor, the eddy current loss consumed by the coupling in operation is smaller, and the temperature is lower. The coaxial sleeve type permanent magnetic eddy current coupling comprises an external rotor, an internal rotor and an end cover shaft, the external rotor is an eddy current ring rotor and comprises an external rotor body and an eddy current ring arranged on the external rotor body, the external rotor body comprises a hollow mandrel, a magnetic conductive cylinder and a chassis, the internal rotor is a permanent magnet rotor and comprises an internal rotor body and a permanent magnet set, the permanent magnet set of the internal rotor corresponds to the eddy current ring of the external rotor, and a gap is reserved between the permanent magnet set and the eddy current ring. The outer end of the internal rotor is provided with the end cover shaft, and the end cover shaft comprises an end cover and a driven shaft.
Description
Technical field
The utility model belongs to permanent-magnet eddy current drive technology field, particularly relates to a kind of coaxial sleeve cartridge type permanent magnet eddy current coupling that adopts magnetism-gathering magnetic line structure.
Background technology
The basic functional principle of permanent-magnet eddy current drive technology is: when permanent magnet rotor and the motion for the relative rotation of ring of eddy rotor, the permanent magnet that in permanent magnet rotor, pole orientation is alternately arranged can produce alternating magnetic field in the ring of eddy of being made by electric conducting material, and then generate the eddy current of alternation within it, this eddy current produces again Induced magnetic field in ring of eddy, stationary magnetic field in Induced magnetic field and permanent magnet rotor interacts, just between two rotors, produce coupling torque, thereby reach the effect of transmitting motion and moment of torsion.The version of permanent magnetic vortex drive device mainly contains two kinds of socket type peace dish-types at present, and its application mainly comprises permanent magnet eddy current coupling (driver) and permanent-magnet eddy current speed regulator.Telescopic permanent magnet eddy current coupling wherein, has that structure is small and exquisite, weight is light, vibrate the design features such as little, permanent magnetic material efficiency is high, eddy current loss is little, the application of succeeding in workplaces such as requiring flexible startup, blocking rotation, limit torque and damping vibration-isolating.
But existing permanent-magnet eddy current drive technology and coaxial sleeve cartridge type permanent magnet eddy current coupling product, have following weak point:
What 1, the magnetic circuit of existing product adopted is discrete magnetic structure
Magnetic structure design is the key problem in technology of permanent magnetic vortex drive device, the quality of magnetic circuit performance can be directly connected to permanent magnetic vortex drive device use material number, the size of overall volume is, the quality of the height of manufacturing cost and service behaviour.So far, the magnetic structure design of telescopic permanent magnet eddy current coupling adopts discrete magnetic structure mostly, on the inner surface or outer surface of magnet rotor cylinder, along even circumferential, even numbered blocks permanent-magnet block is set, each piece magnet radially magnetizes, adjacent two magnet magnetic direction are contrary, and distance relatively far apart.In recent years, along with reduction and the popularization and application of the cost of high performance permanent magnetic materials, and the development of the modern technology that magnetizes, magnetic structure Optimization Theory is also developed rapidly, is improved and applied, and novel magnetic structure emerges in multitude.Modern magnetic structure design theory and method is applied to promoting of permanent-magnet eddy current drive technology, and exploitation is applicable to the novel magnetic circuit of permanent magnetic vortex drive device, to improve the service behaviour of permanent magnetic vortex drive device, imperative.
What 2, the structure mounting means of existing product adopted is separate type
At present, the master and slave magnetic coupling rotor of most permanent magnet eddy current couplings, is all to rely on respectively driving shaft and driven shaft to support, and there is no direct mechanical connection between master and slave rotor.This existing structure form is particularly suitable for the application scenario that motor docks with load rotating shaft direct connection, and allows to have larger the relative position error between two axles, is conducive to vibration isolation damping.But the working condition directly relatively not connecting for master and slave moving axis, the situation that belt pulley is for example directly installed on motor rotary shaft, existing structure can not directly be used, and conventionally need to add the mechanism of a set of independent support driven rotor, makes complex structure huge.Therefore, develop a kind ofly without independent supporting mechanism or rely on the permanent magnet eddy current coupling product of load rotating shaft support, structure compact, there is the clear and definite market demand.
Utility model content
The deficiency existing for prior art, the utility model provides a kind of coaxial sleeve cartridge type permanent magnet eddy current coupling that adopts magnetism-gathering magnetic line structure, compare with existing coaxial sleeve cartridge type permanent magnet eddy current coupling, the permanent magnetic material that the utility model is used still less, the moment of torsion that unit mass (volume) permanent magnetic material can produce or transmission more powerful, overall structure size is less, weight is lighter, can be directly installed on motor rotary shaft and without other support, manufacturing cost is lower, in work, still less, still less, temperature is lower in heating in the eddy current loss of autophage.
To achieve these goals, the utility model adopts following technical scheme: a kind of coaxial sleeve cartridge type permanent magnet eddy current coupling that adopts magnetism-gathering magnetic line structure, comprises external rotor, internal rotor and the end-cover axle of coaxial setting; External rotor is ring of eddy rotor, external rotor body and the ring of eddy being arranged on external rotor body, consists of; External rotor Ti You air-cored axis, magnetic conduction cylindrical shell and chassis form, and air-cored axis is arranged on external rotor body middle part ， air-cored axis one end and is provided with chassis, and chassis is disc-shaped structure, and it is coaxial that magnetic conduction cylindrical shell is arranged on chassis Shang，Qie Yu air-cored axis; Air-cored axis and magnetic conduction cylindrical shell are columnar structured; Ring of eddy is fixed on the magnetic conduction cylinder inner surface of external rotor body; Internal rotor is permanent magnet rotor, internal rotor body and permanent magnet group, consists of; Internal rotor body is columnar structured, is provided with even number set permanent magnet group on internal rotor body sidewall outer surface; Even number set permanent magnet group adopts magnetism-gathering magnetic line structure form, is along the circumferential direction evenly distributed on internal rotor body sidewall outer surface, and the magnet quantity that each group permanent-magnet group comprises is identical; The permanent magnet group of internal rotor is corresponding with the ring of eddy of external rotor, leaves gap between the two; In internal rotor outer end, be provided with end-cover axle, end-cover axle is comprised of end cap and driven shaft, and end cap is disc-shaped structure, and it is fixedly connected with internal rotor body; Between the air-cored axis of internal rotor body and external rotor body, by bearing, be connected, on end cap, be provided with lubricating cup, lubricating cup is connected with the gap of bearing by the lubricant oil way being arranged in internal rotor body, and the outside of end cap is fixedly connected with driven shaft, and the air-cored axis of driven shaft and external rotor body coaxially arranges; Described magnetism-gathering magnetic line structure, be that each group permanent-magnet group is by the magnet composition of two to five close contacts, when described each group permanent-magnet group is comprised of two blocks of magnet, acute angle that the magnetizing direction of described two blocks of magnet and internal rotor body radially form all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; When described each group permanent-magnet group is comprised of three blocks of magnet, the magnetizing direction of middle magnet is identical with internal rotor body radial direction, acute angle that the magnetizing direction of both sides magnet and internal rotor body radially form all≤30 °, and angle is identical, the intersection point of the magnetizing direction of both sides magnet is arranged on permanent magnet group outside; When described each group permanent-magnet group is comprised of four blocks of magnet, the magnetizing direction of middle two blocks of magnet and the acute angle that internal rotor body radially forms all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on outside permanent magnet group; The magnetizing direction of the two blocks of magnet in outside and acute angle that internal rotor body radially forms all≤40 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on outside permanent magnet group; When described each group permanent-magnet group is comprised of five blocks of magnet, the magnetizing direction of middle magnet is identical with internal rotor body radial direction, the magnetizing direction of the both sides magnet adjacent with middle magnet and the acute angle that internal rotor body radially forms all≤20 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; Acute angle that the magnetizing direction of outermost two blocks of magnet and internal rotor body radially form all≤50 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; Described internal rotor body is radially the diametric(al) through the internal rotor body of corresponding magnetic blow out centre; The polar orientation that magnetizes of same group permanent-magnet group internal magnet is identical, the opposite polarity directions that magnetizes of two adjacent groups permanent magnet group; The greatest axial length of the annular solid that described permanent magnet group forms is less than the axial length of ring of eddy.
Described bearing number is two.
The shape of described permanent magnet group internal magnet is identical, and cross section is tile fragment shape, trapezoidal or rectangle.
Close contact or leave gap between described adjacent permanent group, fills non-magnetic isolating pad if leave in ，Ze gap, gap, and non-magnetic isolating pad adopts non-magnet material to make.
The internal diameter of the formed annular solid of described permanent magnet group is identical, external diameter is identical, axial length is identical and end face alignment, and ring of eddy both ends of the surface exceed permanent magnet group both ends of the surface, and exceed the equal in length of both ends of the surface.
On the chassis side wall of the external rotor body corresponding with described permanent magnet group, be provided with several cooling air inlets, be provided with drainage hood outside on the lateral wall on rotor block chassis, drainage hood is corresponding one by one with cooling air inlet; Direction windward during the rotor block rotation outward of the opening of drainage hood.
At described permanent magnet group outer surface, be provided with magnet and seal, magnet is sealed by corrosion-resistant and is made without magnetic metal material; The maximum outside diameter that magnet is sealed is less than the internal diameter of the ring of eddy of external rotor body.
The beneficial effects of the utility model:
The utility model has adopted magnetism-gathering magnetic line structure, compare with the shaft coupling that adopts common discrete magnetic structure have that magnetic material utilance is high, consumption is few, invalid current vortex is little in low cost of manufacture, ring of eddy, energy loss is few, the few temperature rise of heating is low and power transfer efficiency high.The utility model is directly installed on motor rotary shaft, without independent supporting mechanism or dependence load rotating shaft support, and structure compact, easy to use.Torque characteristics of the present utility model is applicable to load staring torque and the large condition of work of motor start-up electric current, and the frequent workplace occurring of impact load, the direct rigid startup of motor band dynamic load can be become to the flexibility startup that load is progressively accelerated, thereby reduce the selection standard of motor, both reduce the initial purchase cost of building of equipment, reduced again the operating idle power consumption of motor.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment (each group permanent-magnet group forms by three blocks of magnet) of the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is that each group permanent-magnet group of the present utility model is by the schematic diagram of the magnetism-gathering magnetic line structure of two magnet compositions;
Fig. 4 is that each group permanent-magnet group of the present utility model is by the schematic diagram of the magnetism-gathering magnetic line structure of four magnet compositions;
Fig. 5 is that each group permanent-magnet group of the present utility model is by the schematic diagram of the magnetism-gathering magnetic line structure of five magnet compositions;
In figure, 1--motor, 11--motor rotary shaft, 12--is axle key initiatively, 13--dog screw, 2--external rotor, 21--air-cored axis, 22--chassis, 23--magnetic conduction cylindrical shell, 24--drainage hood, 25--ring of eddy, 26--hold-down screw, 27--external rotor body, the cooling air inlet of 28--, 29--direction of rotation arrow, 3--internal rotor, 31--internal rotor body, 32--lubricant oil way, 33--permanent magnet group, 34--magnet is sealed, 35--0 ° of angle permanent magnet, 36--30 ° of angle permanent magnet, the non-magnetic isolating pad of 37--, 4--bearing, 5--end-cover axle, 51--end cap, 52--driven shaft, 53--lubricating cup, 54--screw, 6--load belt pulley, 61--driven shaft key, 62--axle head ring washer.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
As shown in Figure 1 and Figure 2, a kind of coaxial sleeve cartridge type permanent magnet eddy current coupling that adopts magnetism-gathering magnetic line structure, comprises external rotor 2, internal rotor 3 and the end-cover axle 5 of coaxial setting; External rotor 2 is ring of eddy rotor, external rotor body 27 and the ring of eddy 25 being arranged on external rotor body 27, consists of; External rotor Ti27You air-cored axis 21, magnetic conduction cylindrical shell 23 and chassis 22 form, make by the steel of magnetic conduction on air-cored axis 21, magnetic conduction cylindrical shell 23 and chassis 22, air-cored axis 21 is arranged on external rotor body 27 middle parts, in air-cored axis 21 one end, be provided with chassis 22, chassis 22 is disc-shaped structure, it is coaxial that magnetic conduction cylindrical shell 23 is arranged on chassis 22 Shang，Qie Yu air-cored axis 21; Air-cored axis 21 is for being provided with keyway in columnar structured ， air-cored axis 21 inner wall surface, and keyway matches with the active axle key 12 being arranged on motor rotary shaft 11, between air-cored axis 21 and motor rotary shaft 11, by dog screw 13, is connected; Magnetic conduction cylindrical shell 23 is thin wall cylinder-shaped structure; Ring of eddy 25 is thin wall circular shape, by copper product, is made, and is arranged on magnetic conduction cylindrical shell 23 inner surfaces of external rotor body 27 by hold-down screw 26.
Internal rotor 3 is permanent magnet rotor, seals 34 be comprised of internal rotor body 31, permanent magnet group 33 and magnet; Internal rotor body 31 is thick cyclinder shape structure, by permeability magnetic material steel, is made, and at internal rotor body 31 sidewall outer surfaces, is provided with 12 group permanent-magnet groups 33; Permanent magnet group 33 is corresponding with the ring of eddy 25 of external rotor 2; Permanent magnet group 33 adopts magnetism-gathering magnetic line structure form, utilizes magnetic-conductive adhesive to be along the circumferential direction evenly fixed on internal rotor body 31 sidewall outer surfaces; At permanent magnet group 33 outer surfaces, be provided with magnet and seal 34, magnet is sealed 34 permanent magnet group 33 is completely coated and is protected, and magnet is sealed 34 and made by stainless steel material; Magnet is sealed the internal diameter that 34 maximum outside diameter is less than ring of eddy 25 on external rotor body 27, leaves gap, as movement clearance and refrigerating gas circulation passage between the two.On chassis 22 sidewalls of the external rotor body 27 corresponding with permanent magnet group 33, be provided with several cooling air inlets 28, be provided with drainage hood 24 outside on chassis 22 outer walls of rotor block 27, drainage hood 24 is corresponding one by one with cooling air inlet 28; Direction windward during rotor block 27 rotation outward of the opening of drainage hood 24; On chassis 22 outer walls of rotor block 27, be provided with direction of rotation arrow 29 outside, indicate the direction of rotation of external rotor body 27, identical with the direction of rotation of motor 1.
In internal rotor 3 outer ends, be provided with end-cover axle 5, end-cover axle 5 is comprised of end cap 51 and driven shaft 52, and end cap 51 is disc-shaped structure, its with internal rotor body 31 between by screw 54, be connected; Between the air-cored axis 21 of internal rotor body 31 and external rotor body 27, by two bearings 4, be connected, bearing 4 inner rings are arranged on the outer wall surface of the air-cored axis 21 of external rotor 27, bearing 4 outer rings are arranged on the inner wall surface of internal rotor body 31, thereby internal rotor 3 is connected with external rotor 2, and makes internal rotor 3 and external rotor 2 coaxially arranged; On end cap 51, be provided with lubricating cup 53, lubricating cup 53 is connected with the gap of bearing by the lubricant oil way 32 being arranged in internal rotor body 31, to provide lubricating oil to bearing 4; The outside of end cap 51 is fixedly connected with driven shaft 52, and driven shaft 52 coaxially arranges with the air-cored axis 21 of external rotor body 27, and load belt pulley 6 is fixed on driven shaft 52 by driven shaft key 61 and axle head ring washer 62.
As shown in Figure 2, the magnetism-gathering magnetic line structure described in the present embodiment, each group permanent-magnet group 33 forms by the bar magnet of three close contacts, and the shape of described permanent magnet group 33 internal magnets is identical, and cross section is tile fragment shape; The middle magnet of each group permanent-magnet group 33 is 0 ° of angle permanent magnet 35, and its magnetizing direction is identical with internal rotor body 31 radial direction, and described internal rotor body 31 is radially the diametric(al) through the internal rotor body 31 at 0 ° of angle permanent magnet 35 center; The magnet that is arranged on 0 ° of angle permanent magnet 35 arranged on left and right sides is 30 ° of angle permanent magnets 36, the acute angle that its magnetizing direction and internal rotor body 31 radially form is 30 °, and described internal rotor body 31 is radially the diametric(al) through the internal rotor body 31 at 30 ° of angle permanent magnet 36 centers; The intersection point of the magnetizing direction of both sides magnet is arranged on permanent magnet group 33 outsides; The polar orientation that magnetizes of same group permanent-magnet group 33 internal magnets is identical, the opposite polarity directions that magnetizes of two adjacent groups permanent magnet group 33; The axial length of described permanent magnet group 33 is less than the axial length of ring of eddy 25; The internal diameter of described permanent magnet group 33 formed annular solids is identical, external diameter is identical, axial length is identical and end face alignment, and ring of eddy 25 both ends of the surface exceed the equal in length of permanent magnet group 33 both ends of the surface.Between described adjacent permanent group 33, leave in ， gap, gap and fill non-magnetic isolating pad 37, non-magnetic isolating pad 37 adopts aluminum to make.
The schematic diagram of the magnetism-gathering magnetic line structure that each group permanent-magnet group 33 forms by two, four, five blocks magnet is respectively as shown in Fig. 3, Fig. 4, Fig. 5.
Below in conjunction with accompanying drawing, a use procedure of the present utility model is described:
When work, first motor rotary shaft 11 drives external rotor 2 to rotate by air-cored axis 21, and the now not yet motion of internal rotor 3 and connected driven shaft 52; Because the polar orientation that magnetizes of two adjacent groups permanent magnet group 33 on internal rotor 3 is contrary, therefore when external rotor 2 is during with internal rotor 3 motion for the relative rotation, the interior formation alternating magnetic field of ring of eddy 25 that the permanent magnet group 33 of internal rotor 3 is understood at external rotor 2; Because ring of eddy 25 is to be become by electric conducting material copper, the alternating magnetic field that permanent magnet group 33 produces can generate the eddy current of alternation within it, and then this eddy current produces Induced magnetic field again in ring of eddy 25; The stationary magnetic field of Induced magnetic field and internal rotor 3 permanent magnet groups 33 interacts, and just between two rotors, produces coupling torque, thereby drives internal rotor 3 and driven shaft 52 to do and identical the rotatablely moving of external rotor 2 directions; After this, in driven shaft 52 output torques one regularly, between external rotor 2 and internal rotor 3, keep certain speed discrepancy, external rotor 2 is faster than internal rotor 3 rotating speeds all the time, the two remains motion for the relative rotation, thereby maintaining all the time above-mentioned coupling process, between two rotors, reaching the object of transmitting motion-promotion force.
Claims (7)
1. adopt a coaxial sleeve cartridge type permanent magnet eddy current coupling for magnetism-gathering magnetic line structure, it is characterized in that comprising external rotor, internal rotor and the end-cover axle of coaxial setting; External rotor is ring of eddy rotor, external rotor body and the ring of eddy being arranged on external rotor body, consists of; External rotor Ti You air-cored axis, magnetic conduction cylindrical shell and chassis form, and air-cored axis is arranged on external rotor body middle part ， air-cored axis one end and is provided with chassis, and chassis is disc-shaped structure, and it is coaxial that magnetic conduction cylindrical shell is arranged on chassis Shang，Qie Yu air-cored axis; Air-cored axis and magnetic conduction cylindrical shell are columnar structured; Ring of eddy is fixed on the magnetic conduction cylinder inner surface of external rotor body; Internal rotor is permanent magnet rotor, internal rotor body and permanent magnet group, consists of; Internal rotor body is columnar structured, is provided with even number set permanent magnet group on internal rotor body sidewall outer surface; Even number set permanent magnet group adopts magnetism-gathering magnetic line structure form, is along the circumferential direction evenly distributed on internal rotor body sidewall outer surface, and the magnet quantity that each group permanent-magnet group comprises is identical; The permanent magnet group of internal rotor is corresponding with the ring of eddy of external rotor, leaves gap between the two; In internal rotor outer end, be provided with end-cover axle, end-cover axle is comprised of end cap and driven shaft, and end cap is disc-shaped structure, and it is fixedly connected with internal rotor body; Between the air-cored axis of internal rotor body and external rotor body, by bearing, be connected, on end cap, be provided with lubricating cup, lubricating cup is connected with the gap of bearing by the lubricant oil way being arranged in internal rotor body, and the outside of end cap is fixedly connected with driven shaft, and the air-cored axis of driven shaft and external rotor body coaxially arranges; Described magnetism-gathering magnetic line structure, be that each group permanent-magnet group is by the magnet composition of two to five close contacts, when described each group permanent-magnet group is comprised of two blocks of magnet, acute angle that the magnetizing direction of described two blocks of magnet and internal rotor body radially form all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; When described each group permanent-magnet group is comprised of three blocks of magnet, the magnetizing direction of middle magnet is identical with internal rotor body radial direction, acute angle that the magnetizing direction of both sides magnet and internal rotor body radially form all≤30 °, and angle is identical, the intersection point of the magnetizing direction of both sides magnet is arranged on permanent magnet group outside; When described each group permanent-magnet group is comprised of four blocks of magnet, the magnetizing direction of middle two blocks of magnet and the acute angle that internal rotor body radially forms all≤15 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on outside permanent magnet group; The magnetizing direction of the two blocks of magnet in outside and acute angle that internal rotor body radially forms all≤40 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on outside permanent magnet group; When described each group permanent-magnet group is comprised of five blocks of magnet, the magnetizing direction of middle magnet is identical with internal rotor body radial direction, the magnetizing direction of the both sides magnet adjacent with middle magnet and the acute angle that internal rotor body radially forms all≤20 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; Acute angle that the magnetizing direction of outermost two blocks of magnet and internal rotor body radially form all≤50 °, and angle is identical, the intersection point of the magnetizing direction of two blocks of magnet is arranged on permanent magnet group outside; Described internal rotor body is radially the diametric(al) through the internal rotor body of corresponding magnetic blow out centre; The polar orientation that magnetizes of same group permanent-magnet group internal magnet is identical, the opposite polarity directions that magnetizes of two adjacent groups permanent magnet group; The greatest axial length of the annular solid that described permanent magnet group forms is less than the axial length of ring of eddy.
2. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, is characterized in that described bearing number is two.
3. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, is characterized in that the shape of described permanent magnet group internal magnet is identical, and cross section is tile fragment shape, trapezoidal or rectangle.
4. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, it is characterized in that between described adjacent permanent group close contact or leave gap, if leave gap, in gap, fill non-magnetic isolating pad, non-magnetic isolating pad adopts non-magnet material to make.
5. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, the internal diameter that it is characterized in that the formed annular solid of described permanent magnet group is identical, external diameter is identical, axial length is identical and end face alignment, ring of eddy both ends of the surface exceed permanent magnet group both ends of the surface, and exceed the equal in length of both ends of the surface.
6. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, it is characterized in that being provided with several cooling air inlets on the chassis side wall of the external rotor body corresponding with described permanent magnet group, on the lateral wall on rotor block chassis, be provided with drainage hood outside, drainage hood is corresponding one by one with cooling air inlet; Direction windward during the rotor block rotation outward of the opening of drainage hood.
7. the coaxial sleeve cartridge type permanent magnet eddy current coupling of employing magnetism-gathering magnetic line structure according to claim 1, is characterized in that at described permanent magnet group outer surface, being provided with magnet seals, and magnet is sealed by corrosion-resistant and made without magnetic metal material; The maximum outside diameter that magnet is sealed is less than the internal diameter of the ring of eddy of external rotor body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320563010.7U CN203457028U (en) | 2013-09-11 | 2013-09-11 | Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320563010.7U CN203457028U (en) | 2013-09-11 | 2013-09-11 | Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure |
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| CN203457028U true CN203457028U (en) | 2014-02-26 |
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| CN201320563010.7U Withdrawn - After Issue CN203457028U (en) | 2013-09-11 | 2013-09-11 | Coaxial sleeve type permanent magnetic eddy current coupling employing magnet-gathering type magnetic circuit structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490589A (en) * | 2013-09-11 | 2014-01-01 | 辽阳泰科雷诺科技有限公司 | Coaxial sleeve type permanent magnet eddy-current coupling with magnetic coagulation type magnetic circuit structure |
| CN103904860A (en) * | 2014-03-14 | 2014-07-02 | 东北大学 | Coaxial sleeve type permanent magnetic eddy-current coupler with fixed end face |
| CN103904862A (en) * | 2014-03-14 | 2014-07-02 | 辽阳泰科雷诺科技有限公司 | Coaxial sleeve type permanent magnet eddy-current speed regulator with fixed end surface |
| CN103904858A (en) * | 2014-03-14 | 2014-07-02 | 东北大学 | Single-tray-type permanent magnet eddy-current coupler with fixed end surface |
| CN103904861A (en) * | 2014-03-14 | 2014-07-02 | 辽阳泰科雷诺科技有限公司 | Double-tray-type permanent magnet eddy-current coupler with fixed end surface |
| CN104811000A (en) * | 2015-04-15 | 2015-07-29 | 苏州威莫磁力传动技术有限公司 | Permanent magnet speed regulator |
| CN107979262A (en) * | 2015-01-21 | 2018-05-01 | 北京华电润泽环保有限公司 | Permanent magnet eddy current coupling |
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2013
- 2013-09-11 CN CN201320563010.7U patent/CN203457028U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490589A (en) * | 2013-09-11 | 2014-01-01 | 辽阳泰科雷诺科技有限公司 | Coaxial sleeve type permanent magnet eddy-current coupling with magnetic coagulation type magnetic circuit structure |
| CN103490589B (en) * | 2013-09-11 | 2015-07-29 | 辽阳泰科雷诺科技有限公司 | A kind of coaxial sleeve cartridge type permanent magnet eddy current coupling adopting magnetism-gathering magnetic line structure |
| CN103904858A (en) * | 2014-03-14 | 2014-07-02 | 东北大学 | Single-tray-type permanent magnet eddy-current coupler with fixed end surface |
| CN103904862A (en) * | 2014-03-14 | 2014-07-02 | 辽阳泰科雷诺科技有限公司 | Coaxial sleeve type permanent magnet eddy-current speed regulator with fixed end surface |
| CN103904861A (en) * | 2014-03-14 | 2014-07-02 | 辽阳泰科雷诺科技有限公司 | Double-tray-type permanent magnet eddy-current coupler with fixed end surface |
| CN103904860A (en) * | 2014-03-14 | 2014-07-02 | 东北大学 | Coaxial sleeve type permanent magnetic eddy-current coupler with fixed end face |
| CN103904862B (en) * | 2014-03-14 | 2016-01-06 | 辽阳泰科雷诺科技有限公司 | The coaxial sleeve cartridge type permanent-magnet eddy current speed regulator that a kind of end face is fixing |
| CN103904861B (en) * | 2014-03-14 | 2016-04-13 | 辽阳泰科雷诺科技有限公司 | Two tray type permanent magnet eddy current couplings that a kind of end face is fixing |
| CN103904858B (en) * | 2014-03-14 | 2016-04-20 | 东北大学 | Single tray type permanent magnet eddy current coupling that a kind of end face is fixing |
| CN103904860B (en) * | 2014-03-14 | 2016-04-20 | 东北大学 | The coaxial sleeve cartridge type permanent magnet eddy current coupling that a kind of end face is fixing |
| CN107979262A (en) * | 2015-01-21 | 2018-05-01 | 北京华电润泽环保有限公司 | Permanent magnet eddy current coupling |
| CN104811000A (en) * | 2015-04-15 | 2015-07-29 | 苏州威莫磁力传动技术有限公司 | Permanent magnet speed regulator |
| CN104811000B (en) * | 2015-04-15 | 2017-12-05 | 苏州威莫磁力传动技术有限公司 | A kind of permanent-magnet speed governor |
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