CN201577018U - Novel permanent magnet rotor of permanent magnet speed regulator - Google Patents
Novel permanent magnet rotor of permanent magnet speed regulator Download PDFInfo
- Publication number
- CN201577018U CN201577018U CN2009202556613U CN200920255661U CN201577018U CN 201577018 U CN201577018 U CN 201577018U CN 2009202556613 U CN2009202556613 U CN 2009202556613U CN 200920255661 U CN200920255661 U CN 200920255661U CN 201577018 U CN201577018 U CN 201577018U
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- China
- Prior art keywords
- permanent
- magnet
- speed governor
- magnetic support
- novel
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- 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 - Lifetime
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Abstract
A novel permanent magnet rotor of a permanent magnet speed regulator adopts the scheme that a magnetic base is fixed on a steel disc delivering torque and is ring-shaped; and the steel disc is disc-shaped integrally, and a circular lug boss is arranged at the middle part. The magnetic base is connected and fixed on the steel disc through bolts, and the circular lug boss in the middle of the steel disc protrudes into an annular hole of the magnetic base. The structure adopted in the permanent magnet rotor can increase stress on the system to fully perform magnetic path optimal design. Under the condition of delivering identical power, the volume of the permanent magnet speed regulator with the structure is smaller, the cost is lower, the structure is simpler, the installation is more convenient, and the performance is more reliable.
Description
Technical field
The utility model relates to permanent-magnet speed governor.Relate in particular to permanent magnet rotor structure in the permanent-magnet speed governor.
Background technology
The patent of invention ZL98802726.7 that U.S. Magna Force Inc. proposed on February 20th, 1998 discloses a kind of permanent-magnet speed governor, mainly is made up of conductor rotor, p-m rotor and air gap adjusting device.Be installed between prime mover and the load machine, can be according to the needs of load machine system operation process, regulate the rotating speed that size of gaps between copper rotor and the p-m rotor changes load machine by the air gap adjusting device, and motor keeps constant rotating speed constant.
The permanent magnet rotor structure of this permanent-magnet speed governor comprises magnetic support 21, steel disk 22 and drag ring 20 (see figure 1)s.Magnetic support is discoid, and permanent magnet is installed on its magnetic support, and magnetic support is the moment of torsion transmitting element, is bumped into steel part and wear-resisting spare part at its running part; Steel disk is an annular, and steel disk is fixed on the magnetic support.
But there is following defective in above-mentioned permanent magnet rotor structure:
1. structure more complicated, cost of manufacture height.Magnetic support spare is an Al-alloy parts, not only want the fixed magnets position, also want transfer torque simultaneously, owing to consider alloy aluminum easy deformation and wearing and tearing, therefore its running part will be bumped into steel part and wear-resisting spare part to increase its stress performance and anti-wear performance, so complex structure, machining accuracy height, fabrication and processing cost height.
2. magnet arrangement density is limited, and the volume of unit power is big.Because when carrying out magnetic Circuit Design, take into full account the mechanical property of aluminum component, so its magnet arrangement density is restricted, can not be optimized magnetic circuit well, in order to strengthen transfer torque, can only increase the external diameter of magnet rotor, thereby volume is big.
The existence of above-mentioned defective has reduced the reliability of whole permanent-magnet speed governor, has increased volume, also influences the extensive popularization of this new technology.
The utility model content
The purpose of this utility model is to provide a kind of novel permanent magnetic rotor (see figure 2) of new permanent-magnet speed governor, comprises permanent magnet, magnetic support, steel disk, and magnetic support is that annular is fixed on the steel disk.The magnetic support effect is only for determining magnet positions, not transfer torque; And moment of torsion is born by steel disk, and steel disk integral body is discoid, and the middle part is the round boss (see figure 3).The mounting means of this p-m rotor is more simple, and permanent magnet is installed in the magnetic support, magnetic support and steel disk Bolt Connection, and the boss at steel disk middle part protrudes in the looping pit of magnetic support.Because magnetic support is the transfer torque not as determining magnet positions only, therefore need not be bumped into steel part and wear-resisting spare part at its running part, structure is simpler, installs more conveniently, and volume is littler.Can carry out sufficient design optimization to magnetic circuit as required for this reason.One circle is arranged along the center of circle above the magnetic support or the square hole/trapezoidal hole of magnet, (seeing Fig. 4-5) are installed more than a circle; This square hole base thickness degree is 0.5-3mm; This square hole can be uniform, also can be non-distribution equalizing structure, (see figure 6).The magnet mounting means is that N-S-N-S also can be the N-N-S-S formula, (see figure 7).The magnet rotor that can realize same volume like this can transmit bigger power.
Technique scheme is compared with the p-m rotor of the disclosed permanent-magnet speed governor of patent of invention ZL98802726.7, and its beneficial effect is: simple and reliable for structure, low cost of manufacture is installed more conveniently, and the magnet rotor of equal volume can transmit more high pulling torque.
Description of drawings
Fig. 1 is the sectional side elevation of the disclosed permanent-magnet speed governor of ZL98802726.7.
Fig. 2 is the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Fig. 3 is the sectional side elevation of the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Fig. 4 is the magnet mounting means of the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Fig. 5 is the magnet shape of the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Fig. 6 is the mounting means of magnet N-S-N of the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Fig. 7 is the mounting means of magnet N-N-S-S of the novel permanent magnetic rotor of the utility model permanent-magnet speed governor.
Embodiment
With reference to accompanying drawing 2-7, the novel permanent magnetic rotor of permanent-magnet speed governor comprises: magnetic support 1, permanent magnet 2 and steel disk 3.Magnetic support 1 is fixed on the steel disk for circular ring, and the magnetic support effect is only for determining magnet positions, not transfer torque; And moment of torsion is born by steel disk 3, and steel disk integral body is discoid, and the middle part is a round boss 4.The mounting means of this p-m rotor is more simple, and permanent magnet 2 is installed in the magnetic support, magnetic support and steel disk Bolt Connection, and the boss at steel disk middle part protrudes in the looping pit of magnetic support.Because magnetic support is the transfer torque not as determining magnet positions only, therefore need not be bumped into steel part and wear-resisting spare part at its running part, structure is simpler, installs more conveniently, and volume is littler.Can carry out sufficient design optimization to magnetic circuit as required for this reason.One circle is arranged along the center of circle above the magnetic support or the square hole/trapezoidal hole of magnet is installed more than a circle; This square hole base thickness degree is 0.5-3mm; This square hole can be uniform, also can be non-distribution equalizing structure.The magnet mounting means is that N-S-N-S also can be the N-N-S-S formula.The magnet rotor that can realize same volume like this can transmit bigger power.
Claims (9)
1. the novel permanent magnetic rotor of permanent-magnet speed governor, it comprises: permanent magnet, magnetic support and steel disk.Permanent magnet is installed in the magnetic support, and magnetic support links to each other with steel disk, it is characterized in that: magnetic support is installed on the steel disk of transfer torque.
2. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1, it is characterized in that: the magnetic support material is aluminium alloy or other non-ferrous material, is shaped as circular.
3. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1 is characterized in that: a circle is arranged along the center of circle above the magnetic support or the square hole/trapezoidal hole of magnet is installed more than a circle.
4. the square hole of the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 3, it is characterized in that: this square hole hole base thickness degree is 0.5-3mm.
5. the square hole of the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 3, it is characterized in that: this square hole can be uniform, and is also can right and wrong uniform.
6. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1, it is characterized in that: the magnetic support hole shape can be a rectangle or trapezoidal.
7. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1 is characterized in that: magnetic support and steel disk Bolt Connection.
8. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1, it is characterized in that: the layout of permanent magnet on magnetic support can be that N-S-N-S is spaced, and also can adopt N-N-S-S to be spaced.
9. the novel permanent magnetic rotor of permanent-magnet speed governor according to claim 1, it is characterized in that: steel disk is a disc, the steel disk middle part is a round boss, protrudes in the magnetic support looping pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202556613U CN201577018U (en) | 2009-11-24 | 2009-11-24 | Novel permanent magnet rotor of permanent magnet speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202556613U CN201577018U (en) | 2009-11-24 | 2009-11-24 | Novel permanent magnet rotor of permanent magnet speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577018U true CN201577018U (en) | 2010-09-08 |
Family
ID=42696889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202556613U Expired - Lifetime CN201577018U (en) | 2009-11-24 | 2009-11-24 | Novel permanent magnet rotor of permanent magnet speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979837A (en) * | 2012-11-30 | 2013-03-20 | 江苏大学 | Permanent magnet disc brake and braking method thereof |
| CN103107674A (en) * | 2013-01-14 | 2013-05-15 | 浙江大学 | Disks of permanent magnet eddy coupling with smaller time-lag effects in disc type |
-
2009
- 2009-11-24 CN CN2009202556613U patent/CN201577018U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979837A (en) * | 2012-11-30 | 2013-03-20 | 江苏大学 | Permanent magnet disc brake and braking method thereof |
| CN102979837B (en) * | 2012-11-30 | 2015-02-04 | 江苏大学 | Permanent magnet disc brake and braking method thereof |
| CN103107674A (en) * | 2013-01-14 | 2013-05-15 | 浙江大学 | Disks of permanent magnet eddy coupling with smaller time-lag effects in disc type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tu Chunchun Document name: Notification to Pay the Fees |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |