CN2922266Y - Planemt magnetic powder clutch - Google Patents
Planemt magnetic powder clutch Download PDFInfo
- Publication number
- CN2922266Y CN2922266Y CN 200620050577 CN200620050577U CN2922266Y CN 2922266 Y CN2922266 Y CN 2922266Y CN 200620050577 CN200620050577 CN 200620050577 CN 200620050577 U CN200620050577 U CN 200620050577U CN 2922266 Y CN2922266 Y CN 2922266Y
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- CN
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- Prior art keywords
- planet
- speed
- magnetic powder
- rotation case
- rotation
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Abstract
The utility model relates to a speed regulation clutch, in particular to a planet magnetic powder clutch with planet mechanism. The utility model is characterized in that an active shaft is arranged in the center of the mechanism and is pivoted with a planet mechanism. A rotating shell revolving around the main shaft is arranged around surroundings of the planet mechanism, wherein, the rotating shell is an empty cavity with the planet mechanism arranged inside. The planet mechanism is provided with a magnetic powder device. An electro-magnetic device is arranged in the rotating shell. The planet mechanism and the rotating shell rotate around the active shaft after electrified and transmit the rotation by the shell shaft. The utility model can make the speed regulation range of the electric motor from zero to rating speed, having the advantages of stable speed regulation, non-level speed regulation state, continuous regulation, infinity of level numbers and smooth speed regulation.
Description
Technical field
The utility model relates to the speed governing clutch, refers in particular to the planet magnetic powder cluth that adopts planetary mechanism.
Background technology
In present industrial production, the mechanism of the more stable and necessary bringing onto load starting of requirement speed, as crane, elevator, bender, forcing press, ribbon conveyer etc., carrying out member has the speed governing requirement, and mechanical operation stability is high more, requires the speed adjusting performance of motor good more.Usually adopt dc speed-regulating motor, frequency control, tandem control and slip electric motor to drive.But dc speed-regulating motor is bulky, and energy loss is many; Frequency control can not realize the adjustment from zero to nominal torque, and higher because of the frequency converter cost, and it is cost an arm and a leg; The speed governing of the string utmost point is because the restriction of number of poles can't realize stepless speed regulation; Electromagnetic speed control can smooth stepless speed-regulating and is widely used, but, the mechanism characteristics of this governing system under the different exciting electric current is very soft, and exciting current is less, software feature is outstanding more, and the stall poor performance is replied slowly, such mechanism characteristics, the mechanism that obvious incompatibility run stability is had relatively high expectations.For this reason, design a kind of planet gear type magnetic powder cluth, utilized common alternating current machine and this special magnetic powder clutch combination speed governing, thereby reached the purpose of stepless speed regulation.
Summary of the invention
The purpose of this utility model is improved at shortcoming that exists in the background technology and problem, provide that a kind of adjusting range is big, exciting voltage is low, temperature change is little, safe and reliable, stall performance height, reply in time, volume is little, light weight, low cost, long planet magnetic powder cluth of life-span.
The technical solution of the utility model is: construct a kind of structure that planetary mechanism and magnetic powder clutched mechanism are combined as a whole, be characterized in that driving shaft is located at the central authorities of mechanism, and articulate a planet mechanism, the outer periphery one of planetary mechanism is around the rotation case of main axis rotation, wherein rotation case is a cavity body, planetary mechanism is located in the cavity of shell, be provided with the magnetic device in the planetary mechanism, be provided with calutron in the rotation case, energising back planetary mechanism and rotation case rotate around driving shaft jointly, and by enclosure axis motion are spread out of.
The utility model has following excellent in performance:
1, speed adjustable range.The speed adjustable range of motor is meant when motor drags nominal load, the maximum speed n that can reach
MaxWith minimum speed n
MinThe ratio.The planetary mechanism of forming by planet carrier and rotation case, planetary gear as can be known, gearratio in the train
, when magnetic was encouraged the electric current maximum, because under the electromagnetic attraction effect, along with rotating speed raises, attraction is big more, rotation case and the adhesive of planetary gear two-wheeled were tight more, make its n
2=0,
This moment n
3max=n
2, promptly maximum output speed is the motor rated speed.When exciting current hour, be magnetic band and rotation case disengaged position on the planetary gear, this n
5min=0, hence one can see that, and the clutch of this structure can use the speed adjustable range of motor to reach 0～rated speed.
2, the stability of speed governing.The stability of electric machine speed regulation is meant when load torque changes, and the degree that motor speed changes thereupon in order to weigh the degree of rotating speed load variations, adopts the static difference rate to represent.Be that example is calculated synchronous speed n now with the 1.1kW ac adjustable speed motor
0=1500r/min, actual speed n
e=1400r/min, the static difference rate is S%=(n
0-n
e)/n
0* 100%=6.7%, during with planet magnetic powder cluth combined speed regulating, because the mechanism characteristics hardness of motor increases, rotation speed change reduces, and rated speed is n
0=1400r/min, actual speed n
e=1380r/min, static difference rate S%=1.4% embodies speed governing stability preferably.
3, the flatness of speed governing.In certain speed adjustable range, the progression of speed governing is many more, and flatness is good more, in planet magnetic powder cluth structure, because torque is risen fast, magnetic band and output housing contacts reply by, in case after the stable contact, speed does not change, smoothing factor ψ ≈ 1 presents the stepless speed regulation state, be that rotating speed is adjustable continuously, progression has embodied speed governing flatness preferably near infinite more.
Description of drawings
Fig. 1 is the utility model front view
Fig. 2 is Fig. 1 end view
Fig. 3 is the utility model torque-current performance diagram
Fig. 4 is the utility model torque-speed characteristic figure
Embodiment
As shown in Figure 1, characteristics of the present utility model are central authorities that driving shaft (7) is located at mechanism, and articulate a planet mechanism, the outer periphery one of planetary mechanism is around the rotation case (4) of main shaft (7) rotation, wherein rotation case (4) is a cavity body, planetary mechanism is located in the cavity of shell (4), be provided with the magnetic device in the planetary mechanism, rotation case is provided with calutron in (4), energising back planetary mechanism and rotation case (4) rotate around driving shaft (7) jointly, and by enclosure axis (8) motion are spread out of.
Planetary mechanism described in the utility model comprises planet carrier (1), planetary gear (5), magnetic band (6), wherein planet carrier (1) one end is located on the driving shaft (7) and rotates with driving shaft (7), the other end is connected with planetary gear (5), make planetary gear (5) around its end points rotation, the periphery of planetary gear (5) is provided with magnetic band (6).Described rotation case (4) comprises magnet exciting coil (3), conducting ring (2), output shaft (8), wherein magnet exciting coil (3) is located on the excircle of rotation case (4), conducting ring (2) is located at the outer ring of magnet exciting coil, and output shaft (8) is connected a side of rotation case (4).
Operation principle of the present utility model:
The driving shaft of motor drives planet carrier and rotates, and when magnetic powder cluth when energising or exciting current are very not little, planetary gear revolves round the sun around shell with the input speed of motor.Owing to adopted special unsaturation magnetic Circuit Design and atomic little spherical magnetic, the magnetic flux that coil produces can (0.005～0.01s) works as useful flux in moment, therefore, when energized, the working chamber of magnetic band sucks magnetic on the planetary gear, and bulging causes planetary gear to contact with rotation case by the magnetic band rapidly.And the exciting current of magnetic powder cluth and torque are like linear, and along with the growth of exciting current, the suction-combining force of magnetic band and planetary gear, rotation case increases gradually, and the output torque increases.Simultaneously, know again, export torque corresponding to a certain current value by the magnetic powder cluth torque-speed characteristic, and irrelevant with rotating speed, by adjusting the exciting current value, change rotating speed of motor.
Claims (3)
1, a kind of planet magnetic powder cluth, it is characterized in that driving shaft (7) is located at the central authorities of mechanism, and articulate a planet mechanism, the outer periphery one of planetary mechanism is around the rotation case (4) of main shaft (7) rotation, wherein rotation case (4) is a cavity body, planetary mechanism is located in the cavity of shell (4), be provided with the magnetic device in the planetary mechanism, rotation case is provided with calutron in (4), energising back planetary mechanism and rotation case (4) rotate around driving shaft (7) jointly, and by enclosure axis (8) motion are spread out of.
2, planet magnetic powder cluth according to claim 1, it is characterized in that described planetary mechanism comprises planet carrier (1), planetary gear (5), magnetic band (6), wherein planet carrier (1) one end is located on the driving shaft (7) and rotates with driving shaft (7), the other end is connected with planetary gear (5), make planetary gear (5) around its end points rotation, the periphery of planetary gear (5) is provided with magnetic band (6).
3, planet magnetic powder cluth according to claim 1, it is characterized in that described rotation case (4) comprises magnet exciting coil (3), conducting ring (2), output shaft (8), wherein magnet exciting coil (3) is located on the excircle of rotation case (4), conducting ring (2) is located at the outer ring of magnet exciting coil, and output shaft (8) is connected a side of rotation case (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620050577 CN2922266Y (en) | 2006-04-03 | 2006-04-03 | Planemt magnetic powder clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620050577 CN2922266Y (en) | 2006-04-03 | 2006-04-03 | Planemt magnetic powder clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2922266Y true CN2922266Y (en) | 2007-07-11 |
Family
ID=38254736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620050577 Expired - Fee Related CN2922266Y (en) | 2006-04-03 | 2006-04-03 | Planemt magnetic powder clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2922266Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786388A (en) * | 2016-12-30 | 2017-05-31 | 安徽理工大学 | Speed-regulating type magnetic coupler overload protection arrangement and method |
| CN111786509A (en) * | 2020-07-24 | 2020-10-16 | 合肥工业大学 | Integrated motor clutch coupling actuator |
-
2006
- 2006-04-03 CN CN 200620050577 patent/CN2922266Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786388A (en) * | 2016-12-30 | 2017-05-31 | 安徽理工大学 | Speed-regulating type magnetic coupler overload protection arrangement and method |
| CN111786509A (en) * | 2020-07-24 | 2020-10-16 | 合肥工业大学 | Integrated motor clutch coupling actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |