CN202276273U - Magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically - Google Patents
Magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically Download PDFInfo
- Publication number
- CN202276273U CN202276273U CN2011202666875U CN201120266687U CN202276273U CN 202276273 U CN202276273 U CN 202276273U CN 2011202666875 U CN2011202666875 U CN 2011202666875U CN 201120266687 U CN201120266687 U CN 201120266687U CN 202276273 U CN202276273 U CN 202276273U
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- rotor
- copper
- magnetic
- rotors
- magnet rotor
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Abstract
The utility model discloses a magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically. The magnetic coupler includes a first magnetic rotor (1), a second magnetic rotor (2), a first copper rotor (3), and a second copper rotor (4). The first magnetic rotor (1) and the second magnetic rotor (2) are provided with a first positioning face (9) and a second positioning face (10). The first magnetic rotor (1) is provided with a stop block (6). A first gap (7) is arranged between the first magnetic rotor (1) and the first copper rotor (3), and a second gap (8) is arranged between the second magnetic rotor (2) and the second copper rotor (4). For the magnetic coupler capable of changing the gaps between the magnetic rotors and the copper rotors automatically, in the static state, the gaps are at the designed minimum value, and in the starting state, when a power machine drives the copper rotors to rotate while the magnetic rotors are in the static state, i.e. the rotating speed difference between the copper rotors and the magnetic rotors is maximum, the axial force between the copper rotors and the magnetic rotors is maximum, and the gaps are at the designed maximum value, and the soft start can be realized at the moment.
Description
Technical field
The utility model relates to the magnetic coupling that a kind of magnet rotor and copper rotor gap can change voluntarily.
Background technology
With permanent magnetism power can transfer torque be the technology of common knowledge; Magnetic coupling is based on the actuated element of a kind of transferring power of this technology, and a side of magnetic coupling is the permanent magnet (title magnet rotor) that polarity arranges according to certain rules to be installed and opposite side is equipped with copper dish (title copper rotor), when power drives the copper rotor rotation; The magnetic line of force by copper dish cutting permanent magnet; On the copper dish, produce eddy current, and the magnetic field interaction of the magnetic field of eddy current and permanent magnet makes magnet rotor rotate with copper rotor, have no mechanical connection between them and gapped; They are connected with engine, working machine respectively; Just can give working machine with the transmission of power of engine, and the gap length between them has determined the size of transferring power ability, the ability of the bigger then transferring power in gap is more little; When the magnetic field interaction of the magnetic field of eddy current and permanent magnet makes magnet rotor rotate with copper rotor; Also have axial thrust load, its size is relevant with the speed discrepancy between magnet rotor and the copper rotor, and bigger then each other the axial thrust of speed discrepancy is big more.
The utility model content
The purpose of the utility model provides the magnetic coupling that a kind of magnet rotor and copper rotor gap can change voluntarily.
The utility model for realizing the technical scheme that above-mentioned purpose adopted is: the magnetic coupling that a kind of magnet rotor and copper rotor gap can change voluntarily; Comprise first magnet rotor (1), second magnet rotor (2), first copper rotor (3) and second copper rotor (4); Said first magnet rotor (1) and second magnet rotor (2) are provided with first locating surface (9) and second locating surface (10); First magnet rotor (1) is provided with block (6); Be provided with first gap (7) between first magnet rotor (1) and first copper rotor (3), be provided with second gap (8) between second magnet rotor (2) and second copper rotor (4).
Said first magnet rotor (1) and second magnet rotor (2) can be free to slide on axle (5).
When inactive state, first magnet rotor (1) and second magnet rotor (2) respectively with two first locating surfaces (9) and second locating surface (10) lean on last, the minimum value that first gap (7) and second gap (8) are.
When starting state, the block (6) that first magnet rotor (1) that is free to slide on the axle (5) and second magnet rotor (2) are pulled on first magnet rotor (1) is run into second magnet rotor (2), and first gap (7) and second gap (8) are maximum.
The magnetic coupling that a kind of magnet rotor of the utility model and copper rotor gap can change voluntarily, when inactive state, its gap is the minimum value of design; When starting state; When engine drives that copper rotor rotates and magnet rotor during also in inactive state, promptly the speed discrepancy between copper rotor and the magnet rotor is maximum, and then the axial force between them is maximum; Its gap is the maximum of design, more can realize this moment " soft start "; When magnet rotor and working machine start the back, when normally moving, promptly the speed discrepancy between copper rotor and the magnet rotor hour, its gap can be got back to the minimum value of design again, magnetic coupling will remain under the perfect condition and move.
Description of drawings
Fig. 1 is the structural representation of a kind of magnet rotor of the utility model and the copper rotor gap magnetic coupling that can change voluntarily.
Among the figure: 1, first magnet rotor; 2, second magnet rotor; 3, first copper rotor; 4, second copper rotor; 5, axle; 6, block; 7, first gap; 8, second gap; 9, first locating surface; 10, second locating surface.
Embodiment
Magnetic coupling as shown in Figure 1, that magnet rotor and copper rotor gap can change voluntarily comprises first magnet rotor 1, second magnet rotor 2, first copper rotor 3 and second copper rotor 4; First magnet rotor 1 and second magnet rotor 2 are provided with first locating surface 9 and second locating surface, 10, the first magnet rotors 1 and are provided with between block 6, the first magnet rotors 1 and first copper rotor 3 and are provided with gap 7; Be provided with gap 8 between second magnet rotor 2 and second copper rotor 4; Two magnet rotors can be free to slide on axle 5, wherein two first copper rotors 3 and second copper rotor 4, and its axial location is fixed; When the block 6 on first magnet rotor 1 and second magnet rotor 2 are run into; Magnet rotor 1,2 and copper rotor 3, the maximum of the gap between 47,8 for designing when two magnet rotors were opened in 1,2 minutes, are leaned on last time with two locating surfaces 9,10 respectively; Gap 7 between first magnet rotor 1, second magnet rotor 2 and first copper rotor 3, second copper rotor 4 and gap 8 are the minimum value of design; When inactive state, first magnet rotor 1 of magnetic coupling and second magnet rotor 2 respectively with two first locating surfaces 9 and second locating surface 10 lean on last, this moment gap 7 with 8 minimum values for designing; When starting state; When engine drives that first copper rotor 3 and second copper rotor 4 rotate and first magnet rotor 1 and second magnet rotor 2 during also in inactive state; Promptly the speed discrepancy between first copper rotor 3, second copper rotor 4 and first magnet rotor 1, second magnet rotor 2 is maximum; Then the axial force between them is maximum; Because the axial location of first copper rotor 3 and second copper rotor 4 is fixed, so under the effect of axial force, run at the block 6 and second magnet rotor 2 that first magnet rotor 1 that is free to slide on the axle 5 and second magnet rotor 2 are pulled on first magnet rotor 1; This moment, gap 7 was the maximum of design with gap 8, so just can realize " soft start " of working machine; First magnet rotor 1 and second magnet rotor 2 (with working machine together) in the boosting velocity procedure after starting; The speed discrepancy of they and first copper rotor 3 and second copper rotor 4 is more and more littler; Axial force between them is also more and more littler, and first magnet rotor 1 and second magnet rotor 2 can slide on axle 5 under the effect of axial force; When working machine when projected working point is worked; Speed discrepancy at first magnet rotor 1 and second magnet rotor 2 and first copper rotor 3 and second copper rotor 4 is very little; Axial force between them is also very little, the gap 7 of this moment and the minimum value of gap 8 for design, and magnetic coupling moves under design condition.
Claims (4)
1. magnet rotor and the copper rotor gap magnetic coupling that can change voluntarily; It is characterized in that: comprise first magnet rotor (1), second magnet rotor (2), first copper rotor (3) and second copper rotor (4); Said first magnet rotor (1) and second magnet rotor (2) are provided with first locating surface (9) and second locating surface (10); First magnet rotor (1) is provided with block (6); Be provided with first gap (7) between first magnet rotor (1) and first copper rotor (3), be provided with second gap (8) between second magnet rotor (2) and second copper rotor (4).
2. the magnetic coupling that a kind of magnet rotor according to claim 1 and copper rotor gap can change voluntarily is characterized in that: said first magnet rotor (1) and second magnet rotor (2) can be free to slide on axle (5).
3. the magnetic coupling that a kind of magnet rotor according to claim 1 and copper rotor gap can change voluntarily; It is characterized in that: when inactive state; First magnet rotor (1) and second magnet rotor (2) respectively with two first locating surfaces (9) and second locating surface (10) lean on last, the minimum value that first gap (7) and second gap (8) are.
4. the magnetic coupling that a kind of magnet rotor according to claim 1 and copper rotor gap can change voluntarily; It is characterized in that: when starting state; The block (6) that first magnet rotor (1) that is free to slide on the axle (5) and second magnet rotor (2) are pulled on first magnet rotor (1) is run into second magnet rotor (2), and first gap (7) and second gap (8) are maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202666875U CN202276273U (en) | 2011-07-26 | 2011-07-26 | Magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202666875U CN202276273U (en) | 2011-07-26 | 2011-07-26 | Magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276273U true CN202276273U (en) | 2012-06-13 |
Family
ID=46196610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202666875U Expired - Fee Related CN202276273U (en) | 2011-07-26 | 2011-07-26 | Magnetic coupler capable of changing gaps between magnetic rotors and copper rotors automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014151823A1 (en) * | 2013-03-14 | 2014-09-25 | Magnadrive Corporation | Apparatus, systems, and methods for monitoring elevated temperatures in rotating couplings and drives |
-
2011
- 2011-07-26 CN CN2011202666875U patent/CN202276273U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014151823A1 (en) * | 2013-03-14 | 2014-09-25 | Magnadrive Corporation | Apparatus, systems, and methods for monitoring elevated temperatures in rotating couplings and drives |
| CN105191089A (en) * | 2013-03-14 | 2015-12-23 | 麦格纳驱动公司 | Apparatus, systems, and methods for monitoring elevated temperatures in rotating couplings and drives |
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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 |
Granted publication date: 20120613 Termination date: 20140726 |
|
| EXPY | Termination of patent right or utility model |