CN203416146U - An inner-radiation-ring simple permanent magnetic shaft coupling - Google Patents
An inner-radiation-ring simple permanent magnetic shaft coupling Download PDFInfo
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- CN203416146U CN203416146U CN201320339940.4U CN201320339940U CN203416146U CN 203416146 U CN203416146 U CN 203416146U CN 201320339940 U CN201320339940 U CN 201320339940U CN 203416146 U CN203416146 U CN 203416146U
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Abstract
Provided is an inner-radiation-ring simple permanent magnetic shaft coupling. Composed of two parts including a conductor outer rotor 1 and a permanent magnetic inner rotor 2, the shaft coupling is suitable for transmitting motor power to a load in a connectionless manner and satisfies requirements for three functions of large errors in centering installation, soft start, and overload slip protection, achieving a wide application range. The shaft coupling has compact structure and light weight and employs an outer single-circular-ring induction device with fixed radial air gap, a radiation-orientation-ring overall magnetic ring structure, and a high-efficient heat-dissipating optimization system. A motor shaft expansion bushing and a motor shaft connection sleeve are connected with a motor shaft. A motor chain introduces motor power. A load expansion bushing and a load connection sleeve are connected with a load shaft. A load chain outputs torque. The shaft coupling is characterized in that the conductor outer rotor 1 rotates an outer copper ring in the single-circular-ring inductor thereof at a high speed in order to cut the magnetic lines of the inner-radiation overall magnetic ring in the permanent magnetic inner rotor 2 with fixed radial air gap so that eddy current is generated on the outer copper ring, that the eddy current simultaneously generates an induced magnetic field which interacts with a permanent magnetic field so as to achieve connectionless power transmission, and that a high-efficient heat-dissipating device is used for decreasing the temperature of the copper ring and the radiation overall magnetic ring and guaranteeing stable operation of system magnetic force.
Description
Technical field
The utility model relates to a kind of device of motor coupler, be particularly useful for frequent motor starting and load variable load frequent, transship the connecting of motor and load under severe operating mode.
Background technology
Shaft coupling is the parts that often use 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 scientific and technical development, 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, conventionally, according to the ability that has uncompensated relative displacement, is divided into positive coupling and flexible coupling.
That positive coupling has advantages of is simple in structure, transmission efficiency is high.But also having can not overload protection, can not bumper and absorbing shock, cannot compensate diaxon relative displacement and the shortcoming of soft start function is provided.
Flexible coupling comprises the flexible coupling of inelastic component and the flexible coupling having elastic component, the former bumper and absorbing shock ability, and the latter's transmission efficiency is lower.Flexible coupling belongs to contact shaft coupling, and the little and very difficult assurance of centering alignment error often causes vibrating and shortening life-span of seal and bearing due to centering installation question, makes that device temperature raises, transmission efficiency reduces.Although part flexible coupling allows to move under larger error of centralization condition, can on motor and bearing axle, produce periodically additional load, 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 that equipment is caused to very large infringement and easily generation personal injury, reduces the impact to electrical network simultaneously.Most of flexible coupling is without soft start and overload slippage defencive function.Although indivedual flexible couplings can provide soft start and overload slippage defencive function but require centering alignment error little, otherwise even there is production accident in the effect that directly affects transmission of power.When existing flexible coupling is all different, possess: centering alignment error is large, soft start and three functions of overload slippage protection.
In practice, running situation is complicated and changeable, the centering of strict guarantee diaxon in any case, and equipment all can produce vibration after operation a period of time, thereby accelerated wear test, shortens equipment life.So in order to improve the reliability of slewing, eliminate the rigid attachment of shaft coupling between motor shaft and bearing axle, make vibration isolation between motor and load, be independent of each other; Allow the larger error of centralization, slippage protection equipment when equipment is subject to large impact, overload; And can provide soft start function.It is the inexorable trend of following shaft coupling development.
Summary of the invention
For solve positive coupling can not transship slippage protection, can not bumper and absorbing shock, cannot compensate diaxon relative displacement and the shortcoming of soft start function is provided.When all different with existing flexible coupling, possess: centering alignment error is large, the deficiency of soft start and three functions of overload slippage protection; the utility model provides a kind of interior radiation ring type permanent magnet clutch, realizes that centering alignment error is large, soft start and three functions of overload slippage protection simultaneously.Can be by power non contact transmission to load and there is the effect of protection motor and load equipment.This interior radiation ring type permanent magnet clutch has had the advantage of positive coupling and flexible coupling concurrently, is the soft start equipment that a machinery-free connects.Owing to being by magnetic field transmitting torque, with air gap, replacing motor and be connected with the entity between load.Thereby diaxon is separated completely, allow the larger error of centralization, realized soft starter for motor, eliminated nuisance vibration, wearing and tearing and fracture, transmission efficiency is high, the harm that has extended electrical machinery life and avoided overload to cause.
The utility model solves the technical scheme adopting: interior radiation ring type simple type permanent magnet clutch, it is characterized in that having the conductor external rotor being connected on motor shaft and the permanent magnetism internal rotor that is connected bearing axle, and between conductor external rotor and permanent magnetism internal rotor, radially have fixing air gap and by magnetic couple effect, realize contactless moment of torsion between motor shaft and bearing axle and transmit.
Described conductor external rotor is to consist of the outward turning change and the conductor loops that are connected on motor shaft, and conductor loops is fixed on outward turning change inner side.
Rotating ring outside is fixed with outer shroud fin outside, and rotating ring side is fixed with side fin outside.
Rotating ring is connected on motor shaft by motor shaft adapter sleeve outside, and while motor shaft adapter sleeve is equipped with motor shaft expansion set outward motor shaft, motor axle key bar are connected as motor power and are exported with motor shaft adapter sleeve.
Described permanent magnetism internal rotor forms by being connected to the whole magnet ring of interior rotating disk on bearing axle and radiant type, the whole magnet ring of radiant type be fixed on interior rotating disk outer shroud.
By bearing axle adapter sleeve, will be connected as a single entity with interior rotating disk and bearing axle.And with bearing axle expansion set, bearing axle adapter sleeve and bearing axle, load axle key bar are connected as a single entity and are inputted as load power.
The utility model is a kind of innovative energy-saving product that utilizes the research and development of permanent-magnet eddy current Driving technique
,adopt the whole internal magnetic ring effective dimensions of radial air gap fixed-size cylindrical ring type induction installation and radially oriented ring type to optimize structure, utilize outer induction conductor loops and the whole internal magnetic ring of radiant type to relatively rotate magnetic conductor with the fixing magnetic line of force generation magnetic induction force of air gap cutting permanent-magnetic clamp radially, realize contactless moment of torsion transmission between motor and load.Own overload slippage protective feature, guarantees in motor, load equipment and interior radiation ring type permanent magnet clutch short time harmless.
The beneficial effects of the utility model are, interior radiation ring type permanent magnet clutch is non-contact type coupling, vibration isolation, allow the larger error of centralization, install simple; can realize soft start and the protection of overload slippage, long service life, reliable; non-maintaining, transmission efficiency is high, and energy-conservation 10 ~ 30%.Greatly reduce systematic running cost and extended useful life of equipment.Use it also can dwindle capacity motor, eliminate " low load with strong power " phenomenon and meet national " energy-saving and emission-reduction " policy.
Accompanying drawing explanation
1. Fig. 1 is the utility model principle schematic.
Conductor external rotor I: by motor shaft band moving-conductor external rotor I High Rotation Speed, outer conductor ring is with the fixing magnetic line of force of the whole magnet ring of air gap cutting radiant type and produce eddy current on sensor conductor ring outside radially, and eddy current produces induced field simultaneously.Utilize efficient radiating apparatus, reduce system temperature, guarantee that magnetic working is stable.
Permanent magnetism internal rotor II: the permanent magnetic field of the whole magnet ring of interior radiant type in permanent magnetism internal rotor II is subject to conductor external rotor and responds to the interaction of the outer induced field in conductor loops outward and make interior rotating ring rotation.And by bearing axle, the output torque of motor is inputed to load.
2. Fig. 2 is the utility model structural representation.
3. Fig. 3 is interior radiation ring type permanent magnet clutch conductor external rotor magnetizer structure figure.Be connected as motor power output precision with motor shaft, and be system radiating simultaneously.For active rotation body.
4. Fig. 4 is interior radiation ring type permanent magnet clutch permanent magnetism internal rotor permanent-magnetic body structure figure: being connected with bearing axle as load torque input module, is passive rotary body.
5. Fig. 5 is the outer inductor component drawings of interior radiation ring type permanent magnet clutch conductor external rotor.Make system produce the device of induced field.
6. Fig. 6 is interior radiation ring type permanent magnet clutch permanent magnet assembly figure: for system provides the device of permanent magnetic field.
7. Fig. 7 is interior radiation ring type permanent magnet clutch assembly drawing.
Reference numeral: rotating ring 9---side fin, 10--outer shroud fin, 11--rivet, 12--viscose glue, 13--motor shaft, 14--motor axle key bar, 15--bearing axle, 16--load axle key bar in I---conductor external rotor, II---permanent magnetism internal rotor, 1---motor shaft expansion set, 2---motor shaft adapter sleeve, 3---outward turning change, 4---conductor loops, the whole magnet ring of 5---radiant type, 6---bearing axle expansion set, 7---bearing axle adapter sleeve, 8---.
Embodiment
This device adopts whole magnet ring effective dimensions in the single circular ring type induction installation in the fixed-size outside of radial air gap and radially oriented ring type to optimize structure.By magnetic couple effect, realize contactless moment of torsion between motor and load and transmit, when load is transshipped, realize the slippage protection to motor and load equipment.In this, radiation ring type permanent magnet clutch concrete structure and technical scheme are as follows:
Conductor external rotor I: by motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, conductor loops 4, side fin 9, outer shroud fin 10 and rivet 11, the cylindrical shape that is connected by screw is whole, and wherein conductor loops 4 and outward turning change 3 are connected and limit conductor loops 4 and outward turning change 3 axially relatively moves for machinery coordinates with rivet 11.Conductor loops 4 and outward turning change 3 form outer inductor.By motor shaft expansion set 1, motor shaft 13, motor axle key bar 14 are connected with motor shaft adapter sleeve 2 as motor power output and are used.During work by motor shaft 13 with moving-conductor external rotor I High Rotation Speed conductor loops 4 with the fixing magnetic line of force of the whole magnet ring 5 of air gap cutting radiant type produce eddy current in conductor loops 4 radially, simultaneously eddy current produce induced field and permanent magnetic field interact drive in rotating disk 8 rotate.Pass to load by Motor torque is contactless.The induced field that eddy current produces is the basis that motor power transmits.Utilize efficient radiating apparatus simultaneously, reduce the temperature of the whole magnet ring 5 of conductor loops 4 and radiant type, guarantee that system magnetic working is stable.
Interior radiation ring type permanent magnet clutch inductor adopts the single circle ring in outside, different according to transmitted power, changes outer conductor ring diameter and gauge.Design the interior radiation ring type permanent magnet clutch of different size.
Permanent magnetism internal rotor II: be comprised of the whole magnet ring 5 of bearing axle expansion set 6, bearing axle adapter sleeve 7, interior rotating ring 8 and radiant type, permanent magnetism internal rotor II adopts viscose glue 12 to be connected the whole magnet ring 5 of radiant type is connected as a single entity with interior rotating disk 8.Adopting screw to connect is connected as a single entity bearing axle adapter sleeve 7 and interior rotating disk 8.Adopt bearing axle expansion set 6 to connect bearing axle adapter sleeve 7 and bearing axle 15, load axle key bar 16 are connected as a single entity, as load power, input is used.During work, the permanent magnetic field of the whole magnet ring 5 of radiant type in permanent magnetism internal rotor II is subject to conductor external rotor and responds to the interaction of the induced field in conductor loops outward and make interior rotating ring 8 rotations.And by bearing axle 15, the output torque of motor is inputed to load.By magnetic couple effect, realizing contactless moment of torsion between motor and load transmits.Permanent magnetic field is the basis of transmitting motor outputting power and inputing to load.
Interior radiation ring type simple type permanent magnet clutch permanent-magnetic clamp adopts the whole magnet ring structure of radially oriented ring type.Different according to transmitted power, in changing, whole magnet ring 5 diameters of radiant type and gauge and the number of poles that magnetizes are how many and design the interior radiation ring type permanent magnet clutch of different size.Realize the moment of torsion transmission of the interior radiation ring type permanent magnet clutch of different size.Own overload slippage protective feature, guarantees in motor, load equipment and interior radiation ring type permanent magnet clutch short time harmless.
1. in Fig. 1, demonstration be principle of the present utility model:
By conductor external rotor I and bis-parts of permanent magnetism internal rotor II, formed.Be characterized in:
Conductor external rotor I connects motor shaft adapter sleeve 2, motor shaft 13, motor axle key bar 14 introducing motor powers by motor shaft expansion set 1, and permanent magnetism internal rotor II connects bearing axle adapter sleeves 7, bearing axle 15, load axle key bar 16 output torques by bearing axle expansion set 6.
During work, by motor shaft band moving-conductor external rotor I and motor synchronous high-speed, rotate its outer induction conductor loops and produce eddy current with the magnetic line of force that radially fixedly air gap cuts in the whole magnet ring of interior radiant type in permanent magnetism internal rotor II, eddy current produces induced field and permanent magnetic field interaction simultaneously, drive the interior rotating ring rotation of permanent magnetism internal rotor II, by magnetic couple effect, by bearing axle, the output torque of motor is inputed to load.Realize contactless moment of torsion transmission between motor and load.Utilize efficient radiating apparatus, reduce the temperature of the whole magnet ring 5 of conductor loops 4 and radiant type, guarantee that system magnetic working is stable.
2. in Fig. 2, demonstration be structure of the present utility model:
Conductor external rotor I is connected motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, conductor loops 4, lateral surface fin 9 and outer shroud fin 10 is linked to be to cylindrical shape integral body with rivet 12 by screw, and wherein conductor loops 4 and outward turning change 3 is connected and limits conductor loops 4 and outward turning change 3 axially relatively moves for machinery coordinates with rivet 12.Conductor loops 4 be positioned at whole magnet ring 5 excircles of radiant type and with the whole magnet ring 5 concentric layouts of radiant type, guarantee the whole magnet ring 5 external diameter radial air gaps of conductor loops 4 internal diameters and radiant type evenly, fix.Radial air gap is even, fixing, can obtain best power source transmission.Conductor external rotor I forms motor power output block.Utilize efficient radiating apparatus, reduce system temperature, guarantee that magnetic working is stable.
Permanent magnetism internal rotor II is comprised of the whole magnet ring 5 of bearing axle expansion set 6, bearing axle adapter sleeve 7, interior rotating ring 8 and radiant type, forms load power input part.Adopting viscose glue 12 to be connected is connected as a single entity the whole magnet ring 5 of radiant type with interior rotating disk 8.Adopting screw to connect is connected as a single entity interior rotating disk 8 with bearing axle adapter sleeve 7.The whole magnet ring 5 of radiant type be positioned at outer induction conductor loops and with conductor loops 4 concentric layouts, guarantee that whole magnet ring 5 external diameters of radiant type are even with conductor loops 4 internal diameter radial air gaps, fix, to obtain best power source transmission.
3. in Fig. 3, demonstration be the utility model conductor external rotor magnetizer structure installation diagram:
It is whole that conductor external rotor I is linked to be single cylindrical shape by motor shaft expansion set 1, motor shaft adapter sleeve 2, outward turning change 3, conductor loops 4, side fin 9, outer shroud fin 10 and rivet 11, and wherein conductor loops 4 and outward turning change 3 are connected and limit conductor loops 4 and outward turning change 3 axially relatively moves for machinery coordinates with rivet 12.Effect: be magnetic field force by electromechanics power-conversion and export to load rotary body, utilize high efficiency and heat radiation simultaneously, reduce system temperature, guarantee that system magnetic working is stable.
Wherein in Fig. 3 motor shaft expansion set 1 with motor shaft adapter sleeve 2 for being connected motor shaft use, motor shaft 13 is connected as a single entity and is used as motor power output with conductor external rotor I.
4. in Fig. 4, demonstration be the utility model permanent magnetism internal rotor permanent-magnetic body structure installation diagram:
Permanent magnetism internal rotor is comprised of the whole magnet ring 5 of bearing axle expansion set 6, bearing axle adapter sleeve 7, interior rotating ring 8 and radiant type, forms load power input part.Adopting viscose glue 12 to be connected is connected as a single entity the whole magnet ring 5 of radiant type with interior rotating disk 8.Adopting screw to connect is connected as a single entity interior rotating disk 8 with bearing axle adapter sleeve 7.Effect: magnetic field force is converted into moment of torsion and inputs to bearing axle.
Wherein in Fig. 4 bearing axle expansion set 6 with bearing axle adapter sleeve 7 for being connected bearing axle use, bearing axle 15 is connected as a single entity and is used as load torque input with permanent magnetism internal rotor II.
5. in Fig. 5, demonstration be the utility model conductor external rotor inductor assembly installation diagram:
Conductor loops 4 in inductor assembly and outward turning change 3 coordinates for machinery, with rivet 12, connects and limits conductor loops 4 and outward turning change 3 axially relatively moves.Outer induction height speed rotated conductors ring 4 radially fixedly can respond to during the magnetic line of force in the whole magnet ring 5 of air gap cutting radiant type and to produce eddy current, eddy current generation induced field in conductor loops 4.Rotating ring 8 rotations in the induced field that eddy current produces and permanent magnetic field interact and drive.Inductor radial air gap is even, fixing, is the basis of realizing controllable torque output.For key size.The inductor that conductor loops 4 is proprietary material, has greatly improved transmission efficiency.
6. in Fig. 6, demonstration be the utility model permanent magnet assembly installation diagram: permanent magnet is comprised of interior rotating ring 8 and the whole magnet ring 5 of radiant type.The whole magnet ring 5 of interior rotating ring 8 and radiant type is mechanical interference fits and splicing, adopts viscose glue 12 to be connected the whole magnet ring 5 of radiant type is connected as a single entity with interior rotating disk 8.The physical dimension control of the whole magnet ring 5 of radiant type and the number of poles that magnetizes are how many, are the bases of realizing controllable torque output.
7. in Fig. 7, demonstration be the utility model assembly drawing: adopt standard screws that each part is fitted together by diagram installation site and der group.
9. the whole interior radiation ring type permanent magnet clutch course of work: interior radiation ring type simple type permanent magnet clutch is non-contact type coupling, replaces motor with air gap and is connected with the entity between load, thereby diaxon is separated completely, allows the larger error of centralization.During electric motor starting, the rotation of conductor external rotor I and motor synchronous high-speed, because conductor external rotor I and permanent magnetism internal rotor II are contactless shaft coupling, permanent magnetism internal rotor II can not rotate immediately.In electric machine rotation process, the whole magnet ring of interior radiant type of the outer conductor ring in conductor external rotor I magnetic conductor list annulus inductor and permanent magnetism internal rotor II permanent magnet produces relative rotation, alternating magnetic field produces eddy current on sensor conductor ring outside by air gap, eddy current produces the permanent magnetic field interaction of induced field and the whole magnet ring of interior radiant type simultaneously, due to load torque effect, passive permanent magnetism internal rotor II is still in static, when active conductor external rotor I turns over after an angle, between induced field in its outer induction conductor loops and the permanent magnetic field of driven permanent magnetism internal rotor II, there is certain slip angle, according to magnetic pole two like magnetic poles repel each other, the principle that there is a natural attraction between the sexes, thereby static poised state is broken, the size of the angle that initiatively conductor external rotor I turns over depends on the size of load torque, now driven permanent magnetism internal rotor II can be subject to the effect of electromagnetic torque, electromagnetic torque increases along with the increase at the slip angle of active conductor external rotor I and driven permanent magnetism internal rotor II, when electromagnetic torque surpasses load torque, driven permanent magnetism internal rotor II starts to rotate.Whole process starting current is approximately 2 times of running current, has realized 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, initiatively conductor external rotor I will keep certain slip angle synchronous operation with driven permanent magnetism internal rotor II.Thereby drive permanent magnetism internal rotor II along the direction rotation identical with conductor external rotor I, result produces torque on load-side output shaft, thereby band dynamic load rotates.Realize the non contact transmission of power.Realize the moment of torsion transmission between motor and load.In when load variable load, radiation ring type permanent magnet clutch self-regulating rotary declinate, guarantees that moment of torsion transmission is smooth.
Utilize efficient radiating apparatus simultaneously, reduce the temperature of the whole magnet ring 5 of conductor loops 4 and radiant type, guarantee that system magnetic working is stable.
The maximum load torque that interior radiation ring type permanent magnet clutch can bear is determined by the peak torque of static torque characteristic, when load torque values surpasses this peak value size, will produce step-out phenomenon.Due to slippage principle, there is not stall in motor.Realized the overload protection to motor and load equipment.Namely permanent-magnetic outer rotor II stalling load stall, but conductor loops 4 in conductor external rotor I still can keep motor speed constant with the fixing magnetic line of force of the whole magnet ring 5 of radiant type of air gap cutting permanent magnetism internal rotor II radially, motor overload work simultaneously.Own overload slippage protective feature, guarantees in motor, load equipment and radiation ring type permanent magnet clutch short time harmless.
Interior radiation ring type permanent magnet clutch package unit has been realized completing of Contactless power transmission and overload slippage protection action, energy-conserving and environment-protective.
Conductor loops adopts the material of magnetic conduction conduction such as copper, aluminum are done all can.
Claims (6)
1. interior radiation ring type simple type permanent magnet clutch, it is characterized in that having the conductor external rotor (I) being connected on motor shaft (13) and the permanent magnetism internal rotor (II) that is connected bearing axle (15), and between conductor external rotor (I) and permanent magnetism internal rotor (II), radially have fixing air gap and realize contactless moment of torsion transmission between motor shaft (13) and bearing axle (15) by magnetic couple effect.
2. interior radiation ring type simple type permanent magnet clutch according to claim 1, it is characterized in that described conductor external rotor (I) is that (form, conductor loops (4) is fixed on outward turning change (3) inner side by being connected to outward turning change (3) on motor shaft (13) and conductor loops (4).
3. interior radiation ring type simple type permanent magnet clutch according to claim 2, is characterized in that rotating ring (3) outside is fixed with outer shroud fin (10) outside, and rotating ring (3) side is fixed with side fin (9) outside.
4. interior radiation ring type simple type permanent magnet clutch according to claim 2, it is characterized in that rotating ring (3) is connected to motor shaft (13) above by motor shaft adapter sleeve (2) outside, outside motor shaft adapter sleeve (2), motor shaft expansion set (1) is housed simultaneously motor shaft (13), motor axle key bar (14) are connected as motor power and are exported with motor shaft adapter sleeve (2).
5. interior radiation ring type simple type permanent magnet clutch according to claim 1, it is characterized in that described permanent magnetism internal rotor (II) forms by being connected to the whole magnet ring of interior rotating disk (8) on bearing axle (15) and radiant type (5), the whole magnet ring of radiant type (5) and being fixed on interior rotating disk (8) outer shroud.
6. interior radiation ring type simple type permanent magnet clutch according to claim 5, it is characterized in that being connected as a single entity with interior rotating disk (8) and bearing axle (23) by bearing axle adapter sleeve (7), and with bearing axle expansion set (6), bearing axle adapter sleeve (7) and bearing axle (15), load axle key bar (16) are connected as a single entity and are inputted as load power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320339940.4U CN203416146U (en) | 2013-06-14 | 2013-06-14 | An inner-radiation-ring simple permanent magnetic shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320339940.4U CN203416146U (en) | 2013-06-14 | 2013-06-14 | An inner-radiation-ring simple permanent magnetic shaft coupling |
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| Publication Number | Publication Date |
|---|---|
| CN203416146U true CN203416146U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320339940.4U Expired - Fee Related CN203416146U (en) | 2013-06-14 | 2013-06-14 | An inner-radiation-ring simple permanent magnetic shaft coupling |
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| Country | Link |
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| CN (1) | CN203416146U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696097A (en) * | 2018-07-17 | 2018-10-23 | 江苏磁谷科技股份有限公司 | It is a kind of to medium-sized permanent magnet clutch |
| CN110120735A (en) * | 2018-02-05 | 2019-08-13 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet soft starter |
-
2013
- 2013-06-14 CN CN201320339940.4U patent/CN203416146U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120735A (en) * | 2018-02-05 | 2019-08-13 | 江苏磁谷科技股份有限公司 | A kind of permanent magnet soft starter |
| CN108696097A (en) * | 2018-07-17 | 2018-10-23 | 江苏磁谷科技股份有限公司 | It is a kind of to medium-sized permanent magnet clutch |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190614 |