CN204179922U - Double copper ring formula permanent magnet clutch - Google Patents
Double copper ring formula permanent magnet clutch Download PDFInfo
- Publication number
- CN204179922U CN204179922U CN201420738223.3U CN201420738223U CN204179922U CN 204179922 U CN204179922 U CN 204179922U CN 201420738223 U CN201420738223 U CN 201420738223U CN 204179922 U CN204179922 U CN 204179922U
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- China
- Prior art keywords
- copper ring
- steel loop
- interior
- ring
- permanent magnet
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Abstract
Double copper ring formula permanent magnet clutch, comprises the conductor external rotor be connected with motor shaft and the permanent magnetism internal rotor be connected with bearing axle, and radial between conductor external rotor and permanent magnetism internal rotor have fixing air gap; Conductor external rotor comprise active rotation dish, be respectively connected by screw with active rotation dish in steel loop and outer steel loop, interior steel loop is connected with interior copper ring, interior steel loop and interior copper ring form internal induction body, and outer steel loop is connected with outer copper ring, and outer steel loop and outer copper ring form outer inductor; Permanent magnetism internal rotor comprise passive rotating disk, be connected by screw with passive rotating disk carry magnet ring, carry in magnet ring and be bonded with tile type magnet, carry magnet ring and be connected as a single entity with outer encapsulating and interior encapsulating by bonding and welding.The utility model permanent magnet clutch; possess that centering alignment error is large simultaneously, soft start and overload slippage protect three functions, eliminate nuisance vibration, wearing and tearing and fracture; transmission efficiency is high, extends motor and load equipment life-span and avoids the harm of transshipping and causing.
Description
Technical field
The utility model relates to a kind of motor coupler device, is specifically related to a kind of double copper ring formula permanent magnet clutch.
Background technology
Shaft coupling is the parts often used in mechanical system power transmission process, is widely used in the industries such as petrochemical industry, power industry, mining and boats and ships, Aero-Space, steel and iron industry, papermaking.Along with the development of science and technology, shaft coupling application constantly expands, and technology is also at development, and New Products & New Technology emerges in an endless stream.
The type of shaft coupling is more, usually according to the ability having uncompensated relative displacement, is divided into positive coupling and flexible coupling.
Positive coupling has the advantage that structure is simple, transmission efficiency is high.But also have can not overload protection, can not bumper and absorbing shock, diaxon relative displacement cannot be compensated and the shortcoming of soft start function is provided.
The flexible coupling that flexible coupling comprises inelastic component and the flexible coupling had elastic component, the former bumper and absorbing shock ability, the transmission efficiency of the latter is then lower.Flexible coupling belongs to contact shaft coupling, the little and very difficult guarantee of centering alignment error, often because centering installation question causes vibrating and shorten the life-span of seal and bearing, makes that device temperature raises, transmission efficiency reduces.Although part flexible shaft coupling allows to run under larger error of centralization condition, periodically additional load can be produced on motor and bearing axle, do not tackle the problem at its root.Heavy loading machinery equipment must have the ability to work of " soft start and the protection of overload slippage " in addition, to avoid causing very large infringement to equipment and easily personal injury occurring, reduces the impact to electrical network simultaneously.Major part flexible coupling is without soft start and overload slippage defencive function.Although indivedual flexible coupling can provide soft start with overload slippage defencive function but require that centering alignment error is little, otherwise the effect directly affecting transmission of power even occurs production accident.Existing flexible coupling possesses time all different: centering alignment error is large, soft start and overload slippage protect three functions.
In practice, running situation is complicated and changeable, in any case the centering of strict guarantee diaxon, and equipment all can produce vibration after running a period of time, thus accelerated wear test, shortening equipment life.So the reliability in order to improve slewing, eliminating the rigid attachment of shaft coupling between motor shaft and bearing axle, making isolating technique between motor and load, be independent of each other; Allow the larger error of centralization, the slippage proterctive equipment when equipment is subject to large impact, overload; And can soft start function be provided.It is the inexorable trend of following shaft coupling development.
Utility model content
The purpose of this utility model is to provide a kind of double copper ring formula permanent magnet clutch, possesses that centering alignment error is large simultaneously, soft start and overload slippage protect three functions.
The technical scheme that the utility model adopts is, double copper ring formula permanent magnet clutch, comprises the conductor external rotor be connected with motor shaft and the permanent magnetism internal rotor be connected with bearing axle, and radial between conductor external rotor and permanent magnetism internal rotor have fixing air gap; Conductor external rotor comprise active rotation dish, be respectively connected by screw with active rotation dish in steel loop and outer steel loop, interior steel loop is connected with interior copper ring, interior steel loop and interior copper ring form internal induction body, and outer steel loop is connected with outer copper ring, and outer steel loop and outer copper ring form outer inductor; Permanent magnetism internal rotor comprise passive rotating disk, be connected by screw with passive rotating disk carry magnet ring, carry in magnet ring and be bonded with tile type magnet, carry magnet ring and be connected as a single entity with outer encapsulating and interior encapsulating by bonding and welding.
Feature of the present utility model is also,
Interior copper ring and interior steel loop by rivet interlacement, and limit moving axially of interior copper ring; Outer copper ring and outer steel loop by rivet interlacement, and limit moving axially of outer copper ring.
Active rotation dish is welded with air intake baffle ring.
Motor shaft, motor axle key bar are connected by motor shaft expansion set with active rotation dish, as motor power output mechanism.
Passive rotating disk, bearing axle and load axle key bar are connected as a single entity by bearing axle expansion set, as bearing axle input mechanism.
The beneficial effects of the utility model are,
1. the utility model double copper ring formula permanent magnet clutch, adopts single p-m rotor of radial air gap fixed-size pair of circular ring type induction installation and internal magnetic ring structure, by magnetic field transmitting torque, replaces motor be connected with the entity between load with air gap.Thus separated completely by diaxon, allow the larger error of centralization, achieve soft starter for motor, eliminate nuisance vibration, wearing and tearing and fracture, transmission efficiency is high, extends motor and load equipment life-span and avoids the harm of transshipping and causing.
2. the utility model double copper ring formula permanent magnet clutch is non-contact type coupling, vibration isolation, allows the larger error of centralization, installs simply, and can realize soft start and the protection of overload slippage, long service life, reliable, non-maintaining, transmission efficiency is high, energy-conservation 5 ~ 20%.Greatly reduce system cloud gray model expense and extend useful life of equipment.Use it also can reduce capacity motor, eliminate " low load with strong power " phenomenon and meet national " energy-saving and emission-reduction " policy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model double copper ring formula permanent magnet clutch;
Fig. 2 is the structure chart of conductor external rotor in the utility model double copper ring formula permanent magnet clutch;
Fig. 3 is the structure chart of permanent magnetism internal rotor in the utility model double copper ring formula permanent magnet clutch.
In figure, 1. motor shaft expansion set, 2. active rotation dish, steel loop 3., 4. copper ring in, 5. outer steel loop, 6. outer copper ring, 7. tile type magnet, 8. year magnet ring, 9. outer encapsulating, 10. encapsulating in, 11. passive rotating disks, 12. bearing axle expansion sets, 13. rivets, 14. air intake baffle rings, 15. motor shafts, 16. motor axle key bars, 17. bearing axles, 18. load axle key bars.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model double copper ring formula permanent magnet clutch, see accompanying drawing 1, comprises the conductor external rotor be connected with motor shaft 15 and the permanent magnetism internal rotor be connected with bearing axle 17, and radial between conductor external rotor and permanent magnetism internal rotor have fixing air gap; As shown in Figure 2, conductor external rotor comprise active rotation dish 2, be respectively connected by screw with active rotation dish 2 in steel loop 3 and outer steel loop 5, interior steel loop 3 is connected with interior copper ring 4, interior steel loop 3 forms internal induction body with interior copper ring 4, outer steel loop 5 is connected with outer copper ring 6, outer steel loop 5 forms outer inductor with outer copper ring 6, active rotation dish 2 is welded with air intake baffle ring 14;
Interior copper ring 4 is connected by rivet 13 with interior steel loop 3, and limits moving axially of interior copper ring 4; Outer copper ring 6 and outer steel loop 5 by rivet interlacement, and limit moving axially of outer copper ring 6;
Motor shaft 15, motor axle key bar 16 are connected by motor shaft expansion set 1 with active rotation dish 2, as motor power output mechanism.
As shown in Figure 3, permanent magnetism internal rotor comprise passive rotating disk 11, be connected by screw with passive rotating disk 11 carry magnet ring 8, carry in magnet ring 8 and be bonded with tile type magnet 7, carry magnet ring 8 and be connected as a single entity with outer encapsulating 9 and interior encapsulating 10 by bonding and welding;
Passive rotating disk 11, bearing axle 17 are connected as a single entity by bearing axle expansion set 12, as bearing axle input mechanism with load axle key bar 18.By bearing axle 17, the output torque of motor is contactlessly inputed to load by magnetic couple effect.Permanent magnetic field is the basis of transmitting motor output power and inputing to load.
Fix air gap with copper ring 4 in moving-conductor external rotor High Rotation Speed and outer copper ring 6 with radial direction by motor shaft 15 during work cut the magnetic line of force of tile type magnet 7 and produce eddy current on interior copper ring 4 and outer copper ring 6, eddy current produces induced field and permanent magnetic field and interacts and drive passive rotating disk 11 to rotate to pass to load by contactless for Motor torque simultaneously.The induced field that eddy current produces is the basis that motor power transmits.Utilize air intake baffle ring 14 high-efficiency heat radiation structure, the temperature of copper ring 4, outer copper ring 6 and tile type magnet 7 in reducing simultaneously, ensure that system magnetic working is stablized.
Interior copper ring 4 be positioned at carry magnet ring 8 inner periphery and with carry a magnet ring 8 concentric layout, guarantee that interior copper ring 4 external diameter is interior even through radial air gap, fixing with the tile type magnet 7 carried in magnet ring 8, outer copper ring 6 be positioned at carry magnet ring 8 excircle and with carry a magnet ring 8 concentric layout, guarantee outer copper ring 6 internal diameter and the tile type magnet 7 carried in magnet ring 8 outer through radial air gap evenly, fixing.Inside and outside radial air gap is even, fixing, can obtain best power source transmission.Conductor external rotor composition motor power output block.
Carry magnet ring 8 to be positioned in the middle of inside and outside two induction copper ring and with copper ring 4 and outer copper ring 6 concentric layout, guarantee tile type magnet 7 and interior copper ring 4 and outer copper ring 6 radial air gap evenly, fixing, to obtain best power source transmission.
The utility model double copper ring formula permanent magnet clutch course of work: during electric motor starting, conductor external rotor and motor in synchrony High Rotation Speed, because conductor external rotor and permanent magnetism internal rotor are contactless shaft coupling, permanent magnetism internal rotor can not rotate immediately.In electric machine rotation process, in in the two annulus inductor of conductor external rotor (magnetic conductor), tile type magnet 7 in outer copper ring and permanent magnetism internal rotor (permanent magnet) internal magnetic ring produces relative rotation, alternating magnetic field by air gap interior, outer induction copper ring produces eddy current, the permanent magnetic field of eddy current generation induced field and tile type magnet 7 interacts simultaneously, due to load torque effect, permanent magnetism internal rotor is still in static, after conductor external rotor turns over an angle, in it, induced field in outer induction copper ring and there is certain slip angle between the permanent magnetic field of permanent magnetism internal rotor, according to magnetic pole two like magnetic poles repel each other, the principle that there is a natural attraction between the sexes, thus static poised state is broken, the size of the angle that conductor external rotor turns over depends on the size of load torque, now permanent magnetism internal rotor can be subject to the effect of electromagnetic torque, electromagnetic torque along with the slip angle of conductor external rotor and permanent magnetism internal rotor increase and increase, when electromagnetic torque exceedes load torque, permanent magnetism internal rotor starts to rotate.Whole process starting current is approximately 2 times of running current, achieves electric machine soft starting, reduces the starting power consumption of motor and avoids causing larger voltge surge.Be particularly useful for frequent motor starting and load variable load the connecting of motor and load under operating mode frequently.
After this, under the driving of motor, conductor external rotor keeps certain slip angle synchronous operation by with permanent magnetism internal rotor.Thus driving permanent magnetism internal rotor to rotate along the direction identical with conductor external rotor, result produces torque on load-side output shaft, thus band dynamic load rotates.Realize the non contact transmission of power.Realize the moment of torsion transmission between motor and load.When load variable load, double copper ring formula permanent magnet clutch self-regulating rotary declinate, guarantees that moment of torsion transmission is smooth.
The maximum load torque that the utility model double copper ring formula permanent magnet clutch can bear is determined by the peak torque of static torque characteristic, when load torque values exceedes this peak value size, will produce step-out phenomenon.Due to slippage principle, there is not stall in motor.But the interior copper ring 4 in conductor external rotor and outer copper ring 6 still can keep the constant magnetic line of force fixing the tile type magnet 7 in air gap cutting permanent magnetism internal rotor with radial direction of motor speed, motor overload work simultaneously.Own overload slippage protective feature, guarantees motor, load equipment and harmless in the double copper ring formula permanent magnet clutch short time.
The utility model double copper ring formula permanent magnet clutch package unit achieves Contactless power transmission and overload the completing of slippage protection act, energy-conserving and environment-protective.
Claims (5)
1. double copper ring formula permanent magnet clutch, it is characterized in that, comprise the conductor external rotor be connected with motor shaft (15) and the permanent magnetism internal rotor be connected with bearing axle (17), radial between conductor external rotor and permanent magnetism internal rotor have fixing air gap; Conductor external rotor comprises active rotation dish (2), the interior steel loop (3) be connected by screw with active rotation dish (2) respectively and outer steel loop (5), interior steel loop (3) is connected with interior copper ring (4), interior steel loop (3) and interior copper ring (4) form internal induction body, outer steel loop (5) is connected with outer copper ring (6), outer steel loop (5) and outer copper ring (6) form outer inductor; Permanent magnetism internal rotor comprise passive rotating disk (11), with passive rotating disk (11) be connected by screw carry magnet ring (8), carry in magnet ring (8) and be bonded with tile type magnet (7), carry magnet ring (8) and be connected as a single entity with outer encapsulating (9) and interior encapsulating (10) by bonding and welding.
2. double copper ring formula permanent magnet clutch according to claim 1, is characterized in that, described interior copper ring (4) is connected by rivet (13) with interior steel loop (3), and limits moving axially of interior copper ring (4); Described outer copper ring (6) and outer steel loop (5) by rivet interlacement, and limit moving axially of outer copper ring (6).
3. double copper ring formula permanent magnet clutch according to claim 1, is characterized in that, described active rotation dish (2) is welded with air intake baffle ring (14).
4. according to the arbitrary described double copper ring formula permanent magnet clutch of claims 1 to 3, it is characterized in that, described motor shaft (15), motor axle key bar (16) are connected, as motor power output mechanism by motor shaft expansion set (1) with active rotation dish (2).
5. double copper ring formula permanent magnet clutch according to claim 1, it is characterized in that, described passive rotating disk (11), bearing axle (17) are connected as a single entity, as bearing axle input mechanism by bearing axle expansion set (12) with load axle key bar (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738223.3U CN204179922U (en) | 2014-11-27 | 2014-11-27 | Double copper ring formula permanent magnet clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738223.3U CN204179922U (en) | 2014-11-27 | 2014-11-27 | Double copper ring formula permanent magnet clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204179922U true CN204179922U (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420738223.3U Expired - Fee Related CN204179922U (en) | 2014-11-27 | 2014-11-27 | Double copper ring formula permanent magnet clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204179922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669381A (en) * | 2021-08-25 | 2021-11-19 | 天津市汇智尘科技有限公司 | Moment limiting mechanism and transmission system |
-
2014
- 2014-11-27 CN CN201420738223.3U patent/CN204179922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669381A (en) * | 2021-08-25 | 2021-11-19 | 天津市汇智尘科技有限公司 | Moment limiting mechanism and transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20181127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |