CN210075048U - Double-sided cutting magnetic eddy current coupler - Google Patents
Double-sided cutting magnetic eddy current coupler Download PDFInfo
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- CN210075048U CN210075048U CN201920443355.6U CN201920443355U CN210075048U CN 210075048 U CN210075048 U CN 210075048U CN 201920443355 U CN201920443355 U CN 201920443355U CN 210075048 U CN210075048 U CN 210075048U
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Abstract
The utility model relates to a magnetic coupling ware, concretely relates to two-sided cutting magnetic vortex coupler, include: conductor rotor, permanent magnet rotor, conductor outer loop, guide picture inner ring, clamping ring, encapsulation, cushion, fan-shaped magnet steel, the utility model discloses an eddy current coupler, the copper conductor ring of cutting magnetic ring magnetic induction line be inside and outside double-deck ring, and for the individual layer ring among the prior art, the copper conductor ring of double-deck ring has increased the magnetic coupling area, and required magnetic ring volume is littleer under same anti-magnetic field intensity, saves the cost relatively.
Description
Technical Field
The utility model relates to a magnetic coupling ware, concretely relates to two-sided cutting magnetic vortex coupler.
Background
A permanent magnet coupler, also known as a magnetic coupler, is a device for realizing torque transmission from a motor to a load through an air gap between a conductor and a permanent magnet, and can realize a transmission mode without mechanical connection between the motor and the load
The magnetic coupler mainly comprises a copper rotor, a permanent magnet rotor and a controller. Generally, a copper rotor is connected to a motor shaft, a permanent magnet rotor is connected to a shaft of a working machine, and there is an air gap between the copper rotor and the permanent magnet rotor, and there is no mechanical connection for transmitting torque. Therefore, the magnetic connection is formed between the motor and the working machine, and the change of the torque and the rotating speed of the working machine shaft is realized by adjusting the air gap.
Permanent magnetic materials are also known as "hard magnetic materials". The materials capable of keeping constant magnetism once magnetized are commonly used permanent magnetic materials such as aluminum-nickel-cobalt permanent magnetic alloy, iron-chromium-cobalt permanent magnetic alloy, permanent magnetic ferrite, rare earth permanent magnetic material, composite permanent magnetic material and the like, however, the market price of the permanent magnetic materials is expensive, the permanent magnetic eddy current couplers in the prior art are single-side cutting magnetic induction line couplers, and in order to not reduce the interaction between the permanent magnet and the counter induction magnetic field, more permanent magnetic materials are required to be consumed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-sided cutting magnetic eddy current coupler: the feature structure of the magnetic induction lines is cut by the double-sided conductor ring in the conductor rotor, so that the permanent magnet material required in the permanent magnet rotor is reduced.
The utility model provides a two-sided cutting magnetism eddy current coupler, comprises conductor rotor and permanent magnet rotor, and the conductor rotor links with the motor, and the permanent magnet rotor links with the load, its characterized in that: the conductor rotor is provided with a double-layer conductor ring for cutting magnetic induction lines of the magnetic ring, the permanent magnet rotor comprises a conductor outer ring on the outer wall and a conductor inner ring on the inner wall of the permanent magnet, and the conductor inner ring, the conductor outer ring and the middle magnetic ring are distributed at equal intervals.
Preferably, the distance between the conductor outer ring, the conductor inner ring and the magnetic ring is 4 mm.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a vortex coupler, the copper conductor ring of cutting magnetic ring magnetic induction line be inside and outside double-deck ring, and for the individual layer ring among the prior art, the copper conductor ring of double-deck ring has increased the magnetic coupling area, and required magnetic ring volume is littleer under same anti-magnetic field intensity, saves the cost relatively.
Drawings
The invention will be further explained with reference to the drawings and examples
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a detailed diagram of the structure of the double-layer conductor ring in the middle-section structural diagram of the present invention;
fig. 3 is a magnetic steel layout diagram of the present invention;
FIG. 4 is a schematic diagram of a prior art single-sided cutting magnetic eddy current coupler;
in the figure: 1-conductor rotor, 2-permanent magnet rotor, 31-conductor outer ring, 32-guide inner ring, 4-pressure ring, 5-encapsulation, 6-cushion block and 7-sector magnetic steel.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
a double-sided cutting magnetic eddy current coupler, comprising: 1-conductor rotor, 2-permanent magnet rotor, 31-conductor outer ring, 32-guide inner ring, 4-pressure ring, 5-encapsulation, 6-cushion block and 7-sector magnetic steel.
Referring to fig. 1, a double-sided cutting magnetic eddy current coupler is composed of a conductor rotor and a permanent magnet rotor, wherein the conductor rotor is connected with a motor, the permanent magnet rotor is connected with a load, the conductor rotor is provided with a double-layer conductor ring for cutting magnetic induction lines of a magnetic ring, the double-layer conductor ring is divided into a conductor inner ring and a conductor outer ring, and the conductor inner ring, the conductor outer ring and the middle magnetic ring are distributed at equal intervals.
Example 1
As shown in fig. 1, 2, 3 and 4, a coupler in the prior art, as shown in fig. 4, utilizes the magnetic induction principle to realize the no-load soft start and torque transmission of a motor, and is composed of two independent rotors without mechanical contact, a permanent magnet outer rotor and a conductor inner rotor, wherein a certain air gap is formed between the permanent magnet outer rotor and the conductor inner rotor, and the air gap is 2mm-3 mm. The conductor inner rotor is connected with the output end of the motor to form a driving end, the permanent magnet outer rotor is connected with the load input end to form a driven end, the motor is started to run, the conductor inner rotor and the permanent magnet outer rotor generate relative motion, an alternating magnetic field formed by the permanent magnet generates eddy current on the conductor inner rotor through an air gap, simultaneously the eddy current generates a counter magnetic field to interact with the magnetic field of the permanent magnet, after the conductor inner rotor rotates by an angle, a certain slip angle exists between the conductor inner rotor and the permanent magnet outer rotor, so that the static balance state is broken, when the magnetic torque exceeds the load starting torque, the driven end starts to rotate, the driving end and the driven end are not in mechanical contact, smooth acceleration and smooth transition are ensured, destructive moment impact is avoided, the peak value of the starting current is greatly reduced, the impact duration time of the peak value starting current is shortened, the, the energy-saving effect is obvious, the motor is started and operated at low speed, and the insulation damage or burning caused by the heating of the motor during starting is avoided; afterwards, under the drive of motor, the driving end will keep certain slip angle synchronous operation with the driven end to drive permanent magnet external rotor and conductor inner rotor syntropy rotatory, the result produces the torque on the load end output shaft, drive the load and be rotary motion and realize the contactless transmission of power, permanent magnet external rotor and conductor inner rotor air gap are fixed unchangeable, and the magnetic coupling area has decided the biggest magnetic torque between conductor and permanent magnet, as shown in figure 1 the utility model discloses well conductor divide into inner ring and outer loop, and interior outer air gap is 4mm, because two-sided cutting magnetism sensing line, required magnetic ring volume is littleer under equal reaction magnetic field intensity, saves the cost.
The method comprises the steps of enabling a fan-shaped magnetic steel to correspond to an arc surface corresponding to the outer circle of an outer rotor base body, adhering the fan-shaped magnetic steel to the outer rotor base body by using special glue, adhering a cushion block to the side surface of the fan-shaped magnetic steel to the outer rotor base body, sequentially arranging the fan-shaped magnetic steels in a staggered mode according to N-S poles as shown in a magnetic steel arrangement diagram of figure 4, separating the fan-shaped magnetic steels through the cushion blocks, uniformly fixing the fan-shaped magnetic steels to the outer rotor base body, sleeving an envelope on the outer circles of the fan-shaped magnetic steels and the cushion blocks, installing a pressing ring into the outer rotor base body, completely wrapping the magnetic ring, finally riveting and fixing the pressing.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (2)
1. The utility model provides a two-sided cutting magnetism eddy current coupler, comprises conductor rotor and permanent magnet rotor, and the conductor rotor links with the motor, and the permanent magnet rotor links with the load, its characterized in that: the conductor rotor is provided with a double-layer conductor ring for cutting magnetic induction lines of the magnetic ring, the permanent magnet rotor comprises a conductor outer ring on the outer wall and a conductor inner ring on the inner wall of the permanent magnet, and the conductor inner ring, the conductor outer ring and the middle magnetic ring are distributed at equal intervals.
2. A double-sided cutting magnetic eddy current coupler according to claim 1, wherein the spacing between the conductor outer ring, the conductor inner ring and the magnetic ring is 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443355.6U CN210075048U (en) | 2019-04-03 | 2019-04-03 | Double-sided cutting magnetic eddy current coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443355.6U CN210075048U (en) | 2019-04-03 | 2019-04-03 | Double-sided cutting magnetic eddy current coupler |
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| Publication Number | Publication Date |
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| CN210075048U true CN210075048U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920443355.6U Active CN210075048U (en) | 2019-04-03 | 2019-04-03 | Double-sided cutting magnetic eddy current coupler |
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| CN (1) | CN210075048U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311197A (en) * | 2020-09-28 | 2021-02-02 | 江苏大学 | 90-degree Halbach distributed double-layer permanent magnet rotor magnetic coupler |
-
2019
- 2019-04-03 CN CN201920443355.6U patent/CN210075048U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311197A (en) * | 2020-09-28 | 2021-02-02 | 江苏大学 | 90-degree Halbach distributed double-layer permanent magnet rotor magnetic coupler |
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