CN201256353Y - Axial direction cooling permanent magnet coupler for inner rotor - Google Patents
Axial direction cooling permanent magnet coupler for inner rotor Download PDFInfo
- Publication number
- CN201256353Y CN201256353Y CNU2008201636090U CN200820163609U CN201256353Y CN 201256353 Y CN201256353 Y CN 201256353Y CN U2008201636090 U CNU2008201636090 U CN U2008201636090U CN 200820163609 U CN200820163609 U CN 200820163609U CN 201256353 Y CN201256353 Y CN 201256353Y
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- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- internal rotor
- inner rotor
- steel loop
- 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.)
- Expired - Fee Related
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The utility model discloses an inner rotor axial cooling permanent magnetic coupling, which comprises an outer rotor which is connected with a drive component through a shaft, an inner rotor which is connected with a driven component through the shaft, and a separation sleeve which is connected with a flange plate of the driven component in a sealed mode, wherein the separation sleeve is located between the outer rotor and the inner rotor, a centrifugal diversion bottom outlet is arranged on one end of the inner rotor close to the driven component, the axial cord of the centrifugal diversion bottom outlet and the axial cord of the inner rotor form a theta angle, and the range of the theta angle is -75 degrees to 75 degrees. Working media and the inner rotor are arranged in a sealed space formed by the flange plate of the driven component and the separation sleeve, and a gap is arranged between the inner rotor and the flange plate and the separation sleeve. When the inner rotor works, the working media are rotated and cooled along the axial direction of the inner rotor through the centrifugal diversion bottom outlet and the gap. The inner rotor axial cooling permanent magnetic coupling extends the high temperature using limit of permanent magnetic couplings.
Description
Technical field
The invention belongs to power transmission device, relate to a kind of shaft coupling, a kind of specifically inner rotor shaft is to the cooling permanent magnet clutch.
Background technology
In chemical industry and electronics industry, permanent magnet clutch is because the non contact transmission of its moment, thereby original dynamic seal (packing) is converted to static sealing, fundamentally solves the leakage problem of equipment, and is selected by many manufacturing enterprises.
Permanent magnet clutch comprises the external rotor that is connected with driving part, separation sleeve, the internal rotor that is connected with slave unit.External rotor hollow, separation sleeve and internal rotor are inserted in the external rotor hollow cavity, and separation sleeve is between external rotor and internal rotor.External rotor utilizes the principle that the same sex of permanent magnetic material is repelled each other, there is a natural attraction between the sexes to drive the internal rotor rotation that links to each other with the axle of slave unit, reaches the purpose of transmission of torque.Slave unit and separation sleeve form an enclosure space, and internal rotor is positioned at this enclosure space.Be illustrated in figure 3 as the internal rotor generalized section, in the enclosure space that internal rotor 22, slave unit 24, separation sleeve 20 form, be flooded with some flowable working medias 21, be mainly liquid state or gaseous state leak materials.Because the magnetic field that the internal rotor high speed rotating forms can produce induced current (eddy current), thereby produce thermal effect on the metal separation sleeve, cause the internal rotor temperatures at localized regions to raise.Working media is along with internal rotor rotates, and in the confined space environment, working media only in the inner rotor radial rotation, does not axially flow, and working media is static with respect to internal rotor in fact.This internal rotor operating mechanism, the poor heat radiation temperatures at localized regions raises when serious even causes that magnetic material because of too high temperature produces loss of excitation, makes shaft coupling lose the function of transmission of torque.
A kind of permanent magnetism coaxial inductive ring type asynchronous coupling is disclosed in China's utility model patent 200620078996.9, its objective is that be provided for can be at the shaft coupling that surpasses on the magnetic drive pump that uses under 250 ℃ the operating mode, the external rotor of drum shape connects with machine shaft, the axis 00 of external rotor ' coaxial with machine shaft, it is characterized in that the axis of the drum shape internal rotor made by hysteresis material and the axis 00 of external rotor ' coaxial, the drum shape separation sleeve of being made by nonmagnetic substance is installed between external rotor and internal rotor, internal rotor is installed in the separation sleeve, drum wall inboard at external rotor, around permanent magnet is installed, the drum wall installation site in the axial direction of internal rotor is corresponding with permanent magnet.
Summary of the invention
The utility model provides a kind of inner rotor shaft of high temperature operating limit of expanding to the cooling permanent magnet clutch.
A kind of inner rotor shaft is to the cooling permanent magnet clutch, comprise the external rotor that is connected with the axle of driving part, with the internal rotor that spool is connected of slave unit, with the airtight separation sleeve that is connected of the ring flange of slave unit, separation sleeve is between external rotor and internal rotor, described internal rotor is provided with the centrifugal flow guiding hole near the slave unit end, the centrifugal flow guiding axially bored line becomes the θ angle with the internal rotor axis, and the θ angular region is-75 °～+ 75 °.In the confined space that the ring flange of slave unit and separation sleeve form, there are working media and internal rotor, have the space between internal rotor and ring flange and the separation sleeve.Working media cools off along the rotation of internal rotor axis direction by centrifugal flow guiding hole and space during the internal rotor rotation.
Described centrifugal flow guiding hole is provided with more than two or two around the internal rotor axis.
Described centrifugal flow guiding hole becomes the center symmetry with internal rotor near slave unit end center.
The bonding some steel bars of described external rotor inwall, some steel bars form steel loop, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
The bonding some steel bars of described internal rotor outer wall, some steel bars form steel loop, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
Described internal rotor is a tubbiness, and the bucket end is provided with the centrifugal flow guiding hole.
The centrifugal flow guiding hole is provided with more than two or two around the internal rotor axis, has reached the minimum requirement of internal rotor degree of unbalance.The centrifugal flow guiding hole becomes the center symmetry with internal rotor near slave unit end center, and this is designed to theoretical degree of unbalance minimum, and can rationally carry out the internal rotor weight balancing and regulate.
By the bonding steel loop that forms of some steel bars, some steel bars form steel loop, and the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction has promoted shaft coupling transmission of torque efficient and stability.
The utility model inner rotor shaft the heating of internal rotor concentration of local, by mobile other position that is delivered to of working media, reaching the effect of heat radiation, thereby is expanded the high temperature operating limit to the centrifugal flow guiding hole of cooling permanent magnet clutch.
Description of drawings
Fig. 1 is the utility model permanent magnet clutch generalized section;
Fig. 2 is the internal rotor section intention of the utility model permanent magnet clutch;
Fig. 3 is the internal rotor generalized section of existing permanent magnet clutch;
Fig. 4 is another internal rotor generalized section of the utility model permanent magnet clutch;
In the accompanying drawing arrow represent MEDIA FLOW to.
Embodiment
The utility model inner rotor shaft is to the cooling permanent magnet clutch as illustrated in fig. 1 and 2, comprise with axle 5 external rotors that are connected 3 of driving part, with spool 8 internal rotors that are connected 6 of slave unit, with the ring flange 7 airtight separation sleeves that are connected 2 of slave unit, separation sleeve 2 is between external rotor 3 and internal rotor 6, and internal rotor 6 is provided with the centrifugal flow guiding hole near the slave unit end.The centrifugal flow guiding axially bored line becomes the θ angle with the internal rotor axis, and the θ angular region is-75 °～+ 75 °.The centrifugal flow guiding hole is provided with more than two or two around internal rotor 6 axis, becomes the center symmetry with internal rotor 6 near slave unit end center.
The bonding some steel bars 10 of external rotor 3 inwalls form steel loop by some steel bars 10, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
The bonding some steel bars 11 of internal rotor 6 outer walls form steel loop by some steel bars 11, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
The utility model course of work is permanent magnet clutch as illustrated in fig. 1 and 2, is positioned at the space of driving part ring flange 4, slave unit ring flange 7,1 formation of outer protective jacket.Driving shaft 5 rotations drive external rotor 3, utilize magnetic force to drive internal rotor 6 rotations, thereby make driven shaft 8 rotations reach the transmission effect.Working media 9 produces centrifugal force with internal rotor 6 high speed rotating in the internal rotor 6 centrifugal flow guiding holes, force working media 9 to a lateral movement, thereby form inner internal rotor 6 axial circulating currents, reach separation sleeve 2 is diffused into whole device because of local pyrexia that eddy current produced near magnet steel, thereby expand the purpose of high temperature operating limit.
The internal rotor of permanent magnet clutch as shown in Figure 4, it directly partly welds with operating mechanism of slave unit 12 and drives operating mechanism and rotate.
Claims (7)
1, a kind of inner rotor shaft is to the cooling permanent magnet clutch, comprise with the external rotor (3) that is connected of axle (5) of driving part, the internal rotor (6) that is connected with spool (8) of slave unit, with the airtight separation sleeve that is connected of ring flange (7) (2) of slave unit, separation sleeve (2) is positioned between external rotor (3) and the internal rotor (6), it is characterized in that: described internal rotor (6) is provided with the centrifugal flow guiding hole near the slave unit end.
2, permanent magnet clutch as claimed in claim 1 is characterized in that: described centrifugal flow guiding axially bored line becomes the θ angle with the internal rotor axis, and the θ angular region is-75 °～+ 75 °.
3, permanent magnet clutch as claimed in claim 1 is characterized in that: described centrifugal flow guiding hole is provided with more than two or two around internal rotor (6) axis.
4, permanent magnet clutch as claimed in claim 3 is characterized in that: described centrifugal flow guiding hole becomes the center symmetry with internal rotor (6) near slave unit end center.
5, permanent magnet clutch as claimed in claim 1 is characterized in that: the bonding some steel bars of described external rotor (3) inwall (10), some steel bars (10) form steel loop, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
6, permanent magnet clutch as claimed in claim 1 is characterized in that: the bonding some steel bars of described internal rotor (6) outer wall (11), some steel bars (11) form steel loop, the ring wall of the vertical steel loop of steel loop magnetization back steel loop internal magnetic field direction.
7, permanent magnet clutch as claimed in claim 1 is characterized in that: described internal rotor (6) is a tubbiness, and the bucket end is provided with the centrifugal flow guiding hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201636090U CN201256353Y (en) | 2008-09-01 | 2008-09-01 | Axial direction cooling permanent magnet coupler for inner rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201636090U CN201256353Y (en) | 2008-09-01 | 2008-09-01 | Axial direction cooling permanent magnet coupler for inner rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201256353Y true CN201256353Y (en) | 2009-06-10 |
Family
ID=40739681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201636090U Expired - Fee Related CN201256353Y (en) | 2008-09-01 | 2008-09-01 | Axial direction cooling permanent magnet coupler for inner rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201256353Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490588A (en) * | 2013-09-11 | 2014-01-01 | 辽阳泰科雷诺科技有限公司 | Double-layer sleeve type permanent-magnetic eddy transmission device of magnet-gathering type magnetic structure |
| CN112436713A (en) * | 2020-11-27 | 2021-03-02 | 佛山玄同科技有限公司 | Magnetic coupling and transmission mechanism |
-
2008
- 2008-09-01 CN CNU2008201636090U patent/CN201256353Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490588A (en) * | 2013-09-11 | 2014-01-01 | 辽阳泰科雷诺科技有限公司 | Double-layer sleeve type permanent-magnetic eddy transmission device of magnet-gathering type magnetic structure |
| CN103490588B (en) * | 2013-09-11 | 2015-06-17 | 辽阳泰科雷诺科技有限公司 | Double-layer sleeve type permanent-magnetic eddy transmission device of magnet-gathering type magnetic structure |
| CN112436713A (en) * | 2020-11-27 | 2021-03-02 | 佛山玄同科技有限公司 | Magnetic coupling and transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20130901 |