CN103326537B - Limited-moment permanent magnetic coupling - Google Patents
Limited-moment permanent magnetic coupling Download PDFInfo
- Publication number
- CN103326537B CN103326537B CN201310242659.3A CN201310242659A CN103326537B CN 103326537 B CN103326537 B CN 103326537B CN 201310242659 A CN201310242659 A CN 201310242659A CN 103326537 B CN103326537 B CN 103326537B
- Authority
- CN
- China
- Prior art keywords
- rotor
- conductor
- limited
- tubular
- magnetic coupling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A kind of limited-moment permanent magnetic coupling, mainly it is made up of p-m rotor, conductor rotor and rotating shaft, p-m rotor is installed limited square thrust mechanism, p-m rotor is divided into tubular p-m rotor and plate-like p-m rotor two parts, and two parts become an entirety, the outer wall of tubular p-m rotor is provided with direct-axis to permanent magnet, plate-like p-m rotor is provided with and is perpendicular to axial permanent magnet；Conductor rotor is made up of tubular conductor cylinder and conductor disc two parts, and two parts become an entirety, and tubular conductor cylinder inwall is provided with copper ring；Conductor disc is provided with copper ring；Coupled by magnetic field and transmit moment of torsion, when running into stall or overload when motor, it is possible to completely disengaged, reach the function of overload protection.
Description
Technical field
The present invention relates to a kind of permanent magnetic coupling, particularly relate to a kind of limited-moment permanent magnetic coupling.
Background technology
Limited-moment permanent magnetic coupling is by with manually given rated power for benchmark, when load is beyond rated power, then carrying out overload protection function.It is mainly used in petrochemical industry ash pulp grinder, colliery coal digging machine etc. and is easily caused the place of electrical fault, by fully automated disengagement, cut off the connection of motor side and load end, carry out overload protection.The Related product of limited-moment permanent magnetic coupling does not occur in the market, a kind of limited-moment permanent magnetic coupling patent that limited-moment permanent magnetic coupling such as notification number is CN202679217U proposed in prior art: main be made up of p-m rotor and drive mechanism in tubular outer p-m rotor, tubular, is characterized as that to be separately installed with permanent magnet on the bottom of p-m rotor in the outer p-m rotor of described tubular and tubular and barrel evenly distributed according to magnetic pole staggered pattern；Two rotors can on respective axle synchronous axial system, drive mechanism is provided with torque limiting device；In the outer p-m rotor of tubular or tubular, p-m rotor can export or input mechanism each other, can slide on drive mechanism；Between two p-m rotors, mechanical connects, and is connected by the action of a magnetic field.This kind of technical scheme is that permanent magnetism is to permanent magnetism scheme, owing to magnetic pole is for being staggered, it is found through experiments between two rotors, produces slippage, then there will be huge seismism, and cannot be completely disengaged according to what envision when running into stall or transship, moment of torsion transmission efficiency is substantially reduced on the one hand；Big vibrations abnormal on the other hand are huge to the own loss of motor and equipment.Therefore the limited-moment permanent magnetic coupling of this kind of scheme is unfavorable for commercial production, it is impossible to enough promote the productivity, improves production efficiency.
Summary of the invention
In order to overcome, the vibrations existed in above-mentioned prior art are big, completely disengaged cannot carry out the technical problems such as overload protection; the present invention proposes a kind of new limited-moment permanent magnetic coupling technical scheme; it is little that this programme not only produces vibrations, and can disengage timely when running into overload or stall when motor, carries out overload protection function; can produce in batches; can be good at protection motor, and install simple, it is simple to operation; low cost of manufacture, overload protection effect is obvious.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of limited-moment permanent magnetic coupling, including
One p-m rotor, is made up of tubular p-m rotor and plate-like p-m rotor two parts, and two parts become an entirety, the outer wall of described tubular p-m rotor is provided with direct-axis to permanent magnet, described plate-like p-m rotor is provided with and is perpendicular to axial permanent magnet；
One conductor rotor, is made up of tubular conductor cylinder and conductor disc two parts, and two parts become an entirety, and tubular conductor cylinder inwall is provided with copper ring；Conductor disc is provided with plate-like copper ring；
Described p-m rotor is installed limited square thrust mechanism, described limit square thrust mechanism includes torque spring, limiting plate, adjusting screw rod, fixture and rotating shaft, described limiting plate and fixture are rotatably connected by rotating shaft, torque spring is set in rotating shaft, one torque arm of torque spring is fixed on limiting plate, and another torque arm is fixing with fixture to be connected；Limiting plate and adjusting screw rod are threaded connection；Fixture is fixed on p-m rotor.
One torque arm of heretofore described torque spring is fixed on limiting plate by pressing plate, and another torque arm of torque spring is connected with fixture by hole.
Heretofore described conductor rotor is fixedly mounted on load end square shaft；Described p-m rotor is arranged on motor side square shaft.
Heretofore described p-m rotor is at least installed 1 limit square thrust mechanism.
Heretofore described limiting plate free end is provided with at least one screwed hole.
Beneficial effect:
When the present invention runs into stall or overload when motor, it is possible to fully automated disengagement, reach the effect of protection motor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of limited-moment permanent magnetic coupling fully engaged state in embodiment 1
Fig. 2 is the structural representation of the limit square thrust mechanism of a kind of limited-moment permanent magnetic coupling
Fig. 3 is the structural representation of a kind of limited-moment permanent magnetic coupling normal operating condition of the present invention
Fig. 4 is the structural representation of a kind of limited-moment permanent magnetic coupling overload protection state of the present invention
In figure 1, tubular p-m rotor；2, plate-like p-m rotor；3, conductor disc；4, tubular conductor cylinder；5, limit square thrust mechanism；6, permanent magnet；6 ' permanent magnets；7, plate-like copper ring；8, copper ring；9, load end square shaft；9 ', motor side square shaft 10, spring guide pin；11, limiting plate；12, pressing plate；13, torque spring；14, rotating shaft；15, fixture；16, screw；17, screw；18, adjusting screw rod.
Detailed description of the invention
Embodiment 1
System quiescence state (such as Fig. 1).P-m rotor is made up of tubular p-m rotor 1 and plate-like p-m rotor 2 two parts, and two parts become an entirety, and on tubular p-m rotor 1, permanent magnet 6 ' is placed along axial direction, and according to the relative cross arrangement of magnetic pole；On plate-like p-m rotor 1, permanent magnet 6 is perpendicular places in direction of principal axis, and according to the relative cross arrangement of magnetic pole；P-m rotor is arranged on motor side square shaft 9, and can slide axially；Conductor rotor is made up of tubular conductor cylinder 4 and conductor disc 3, and two parts become an entirety, and tubular conductor cylinder 4 barrel is installed at least two copper ring 8, and conductor disc 3 is installed plate-like copper ring 7；Conductor rotor is fixedly mounted on load end square shaft 9；P-m rotor is arranged on motor side square shaft 9 ', p-m rotor and conductor rotor coaxial line but not coaxial, and can be independently rotated, axially advancing and can carry out contactless engagement with conductor rotor by p-m rotor.Limit square thrust mechanism 5 is fixed on p-m rotor by screw 16, and closely fit with motor side square shaft 9 ', quantity is four, as shown in Figure 2, the fixture 15 of limit square thrust mechanism 5 is fixed on p-m rotor by screw 16, fixture 15 is rotationally connected by screw rod and rotating shaft 14 with limiting plate 11, torque spring 13 is arranged between fixture 15 and limiting plate 11, and it is sleeved in rotating shaft 14, one torque arm of torque spring 13 is fixed on limiting plate 11 by pressing plate 12, and pressing plate 12 is fixed on limiting plate by screw 17；Another torque arm of torque spring is inserted in an aperture on fixture 15, makes the torque spring 13 can not axially activity；The end of limiting plate 11 has 3 screwed holes, is used for installing adjusting screw rod 18, it is therefore an objective in order to lengthen the spacing orientation of limiting plate 11 and regulate the size of centrifugal force suffered by limiting plate 11 in running.P-m rotor is at a fully engaged with conductor rotor as shown in Figure 1, limits square thrust mechanism, is positioned at axial location；Motor one is energized, and enters into starting state.
Starting state (such as Fig. 1).During startup, motor first rotates with conductor rotor, also produces axial force simultaneously, and owing to load is not moved, therefore limit square thrust mechanism, overcomes axial force, limit p-m rotor and move axially, it is provided that big starting torque.After load has started, limit square thrust mechanism, under centrifugal action, is positioned at radial position and enters into running status.
Running status (such as Fig. 3).Conductor rotor is at a fully engaged with p-m rotor; limit square thrust mechanism is positioned at radially state; so that p-m rotor can vertically slidably; after exceeding setting torque; produce axial thrust; p-m rotor is axially moveable rapidly so that p-m rotor and conductor rotor are completely disengaged, enters into state after overload protection.
State (such as Fig. 4) after overload protection.P-m rotor is completely disengaged with conductor rotor, limits square thrust mechanism, is positioned at radial position.Now motor turns, and load does not turn.When, after removal of faults on system, manually promoting spring guide pin 10, p-m rotor is carried out axial thrust, it is possible to return to resting state, loose one's grip, spring guide pin 10 automatically resets.
State after recovery, is resting state (such as Fig. 1).
P-m rotor described in above example is power rotor; conductor rotor is driven rotor; if conductor rotor being arranged on motor side be power rotor; range line thrust mechanism is installed and in conductor rotor; p-m rotor is arranged on load end and is driven rotor, then still fall within the protection domain of the technical program.
The above embodiment of the present invention is intended merely to and clearly demonstrates example of the present invention, but not is the restriction to embodiments of the present invention.Other multi-form changes can also be done with regard to specific embodiment structure on the basis of the above description, every belong to apparent change or variation that technical scheme amplified out still in protection scope of the present invention.
Claims (5)
1. a limited-moment permanent magnetic coupling, it is characterised in that: include
One p-m rotor, it is made up of tubular p-m rotor (1) and plate-like p-m rotor (2) two parts, and two parts become an entirety, the outer wall of described tubular p-m rotor (1) is provided with direct-axis to permanent magnet (6), described plate-like p-m rotor (2) is provided with and is perpendicular to axial permanent magnet (6)；
One conductor rotor, is made up of tubular conductor cylinder (4) and conductor disc (3) two parts, and two parts become an entirety, and tubular conductor cylinder (4) inwall is provided with copper ring (8)；Conductor disc (3) is provided with plate-like copper ring (7)；
Described p-m rotor is installed limited square thrust mechanism (5), described limit square thrust mechanism (5) includes torque spring (13), limiting plate (11), adjusting screw rod (18), fixture (15) and rotating shaft (14), described limiting plate (11) and fixture (15) are rotatably connected by rotating shaft (14), torque spring (13) is set in rotating shaft (14), one torque arm of torque spring (13) is fixed on limiting plate (11), and another torque arm is fixing with fixture (15) to be connected；Limiting plate (11) and adjusting screw rod (18) are threaded connection；Fixture (15) is fixed on p-m rotor.
2. limited-moment permanent magnetic coupling according to claim 1, it is characterized in that: a torque arm of described torque spring (13) is fixed on limiting plate (11) by pressing plate (12), another torque arm of torque spring (13) is connected with fixture (15) by hole.
3. limited-moment permanent magnetic coupling according to claim 1 and 2, it is characterised in that: described conductor rotor is fixedly mounted on load end square shaft (9)；Described p-m rotor is arranged in motor side square shaft (9 ').
4. limited-moment permanent magnetic coupling according to claim 3, it is characterised in that: described p-m rotor is at least installed 1 limit square thrust mechanism.
5. limited-moment permanent magnetic coupling according to claim 3, it is characterised in that described limiting plate free end is provided with at least one screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242659.3A CN103326537B (en) | 2013-06-19 | 2013-06-19 | Limited-moment permanent magnetic coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310242659.3A CN103326537B (en) | 2013-06-19 | 2013-06-19 | Limited-moment permanent magnetic coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103326537A CN103326537A (en) | 2013-09-25 |
| CN103326537B true CN103326537B (en) | 2016-07-06 |
Family
ID=49195122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310242659.3A Active CN103326537B (en) | 2013-06-19 | 2013-06-19 | Limited-moment permanent magnetic coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103326537B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059252A (en) * | 2016-07-20 | 2016-10-26 | 安徽理工大学 | Novel composite double-disc magnetic coupler |
| CN107579645A (en) * | 2017-10-25 | 2018-01-12 | 诸暨和创电机科技有限公司 | A kind of distance-limiting type permanent magnet clutch |
| CN109104070B (en) * | 2018-08-27 | 2021-04-02 | 广西科技大学 | Hybrid permanent magnet transmission device |
| CN110535321B (en) * | 2019-09-05 | 2020-06-26 | 安徽理工大学 | Halbach array coupler |
| WO2021072615A1 (en) * | 2019-10-15 | 2021-04-22 | 安徽理工大学 | Halbach array type coupler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007040545A1 (en) * | 2006-08-31 | 2008-04-17 | Tokai Rubber Industries, Ltd., Komaki | Active vibration damper |
| CN201550013U (en) * | 2009-12-03 | 2010-08-11 | 青岛博远船舶机械有限公司 | Permanent magnet eddy current coupling |
| CN102005898A (en) * | 2010-09-14 | 2011-04-06 | 南京艾凌节能技术有限公司 | Torque limited permanent magnet coupler |
| CN201860246U (en) * | 2010-02-02 | 2011-06-08 | 王荣松 | Permanent magnet torque-limiting coupler |
| CN203339931U (en) * | 2013-06-19 | 2013-12-11 | 南京艾凌永磁调速技术研究有限公司 | Limited torque type permanent magnet coupler |
-
2013
- 2013-06-19 CN CN201310242659.3A patent/CN103326537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007040545A1 (en) * | 2006-08-31 | 2008-04-17 | Tokai Rubber Industries, Ltd., Komaki | Active vibration damper |
| CN201550013U (en) * | 2009-12-03 | 2010-08-11 | 青岛博远船舶机械有限公司 | Permanent magnet eddy current coupling |
| CN201860246U (en) * | 2010-02-02 | 2011-06-08 | 王荣松 | Permanent magnet torque-limiting coupler |
| CN102005898A (en) * | 2010-09-14 | 2011-04-06 | 南京艾凌节能技术有限公司 | Torque limited permanent magnet coupler |
| CN203339931U (en) * | 2013-06-19 | 2013-12-11 | 南京艾凌永磁调速技术研究有限公司 | Limited torque type permanent magnet coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103326537A (en) | 2013-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103326537B (en) | Limited-moment permanent magnetic coupling | |
| CN103095097A (en) | Transmission system with permanent magnet speed regulation clutch | |
| CN101749095B (en) | Electromagnetic fan clutch | |
| CN202468172U (en) | Fan impellor locking device and wind-driven power generator set | |
| CN201884529U (en) | Cam crankshaft manual release electromagnetic brake | |
| CN203339931U (en) | Limited torque type permanent magnet coupler | |
| CN103580446A (en) | Torque limitation universal type permanent magnet coupler | |
| CN103178689B (en) | Torque-limitation type permanent magnetic coupler | |
| CN203957128U (en) | A kind of hydraulic machine transmission mechanism of two shaft pugmill mixer | |
| CN203039551U (en) | Transmission system with permanent magnet speed regulation clutch | |
| CN202260829U (en) | Electromagnetic clutch brake motor | |
| CN202565141U (en) | Permanent-magnet eddy-current transmission device | |
| CN201990191U (en) | Safety pin overload protection device of scraper conveyor | |
| CN204131366U (en) | The special magnetic actuator of high moment of torsion | |
| CN203251216U (en) | Torque restriction type permanent magnet coupler | |
| CN204131367U (en) | The special magnetic actuator of coal pulverizer | |
| CN203086317U (en) | Combined adjusting mechanism of coupling machine | |
| CN102904216B (en) | Motor protection device and motor using same | |
| CN203674954U (en) | Universal permanent magnet coupler of torque-limiting type | |
| CN105782383A (en) | Permanent magnet transmission device of pumping unit and pumping unit | |
| CN102116351A (en) | Sliding block type coupler | |
| CN201590709U (en) | Rear end cover type safety brake | |
| CN201228583Y (en) | Electromagnetic fan clutch | |
| CN204013178U (en) | A kind of vertical clutch transmission assembly | |
| CN201412584Y (en) | Hand wheel rotating and switching device of electric actuating mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Moment-limiting type permanent magnet coupler Effective date of registration: 20190830 Granted publication date: 20160706 Pledgee: Zijin Branch of Nanjing Bank Co., Ltd. Pledgor: Nanjing Ailing Permanent Magnetic Speed Regulating Technology Research Co., Ltd. Registration number: Y2019320000094 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201225 Address after: 210000 1st floor, D4 middle section, Hongfeng Science Park, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee after: JIANGSU JINLING PERMANENT MAGNET INDUSTRY RESEARCH INSTITUTE Co.,Ltd. Address before: 211100 Chunhua Industrial Park, Chunhua street, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Nanjing ailing permanent magnet speed control technology research Co.,Ltd. |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211014 Granted publication date: 20160706 Pledgee: Zijin Branch of Nanjing Bank Co.,Ltd. Pledgor: Nanjing ailing permanent magnet speed control technology research Co.,Ltd. Registration number: Y2019320000094 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211122 Address after: 210000 1st floor, D4 middle section, Hongfeng Science Park, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee after: Nanjing ailing permanent magnet speed control technology research Co.,Ltd. Address before: 210000 1st floor, D4 middle section, Hongfeng Science Park, Nanjing Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee before: JIANGSU JINLING PERMANENT MAGNET INDUSTRY RESEARCH INSTITUTE Co.,Ltd. |