CN205622452U - Large -tonnage is electronic screw press PMSM of formula of driving directly - Google Patents
Large -tonnage is electronic screw press PMSM of formula of driving directly Download PDFInfo
- Publication number
- CN205622452U CN205622452U CN201620303232.9U CN201620303232U CN205622452U CN 205622452 U CN205622452 U CN 205622452U CN 201620303232 U CN201620303232 U CN 201620303232U CN 205622452 U CN205622452 U CN 205622452U
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- screw press
- tonnage
- electronic screw
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Abstract
The utility model provides a large -tonnage is electronic screw press PMSM of formula of driving directly, installs the motor stator on the cylinder rotor including installing the cylinder rotor on electronic screw press flywheel, installs the bush on the face of cylinder outside the cylinder rotor, installs a plurality of groups permanent magnet on the face of cylinder outside the bush, installs the squirrel cage on the permanent magnet outer end, installs the soft iron end terminal between bush, squirrel cage and two permanent magnets. The utility model discloses large -tonnage is electronic screw press PMSM of formula of driving directly, electromagnetic torque is big, and motor drive moment is big, realizes the positive reverse rotation of electronic screw press flywheel, and the motor shaft operates steadily to highly little. But the wide application is in the large -tonnage directly among the electronic screw press of the formula of driving.
Description
Technical field
The present invention relates to large-tonnage direct-drive electric screw press permagnetic synchronous motor, can be widely applied in large-tonnage direct-drive electric screw press.
Background technology
The development trend maximized along with forging, in electric screw press drives motor type, frequency conversion motor power can be accomplished bigger, but it is serious that the motor feels hot, cooling measure need to be increased, AC servo motor is promoted the use of because of expensive impact, and switch reluctance machine rotor stalloy is limited by domestic plate size, and power can not be accomplished the biggest.For the defect of above-mentioned driving motor, a kind of New-type electric machine of exploitation, extremely urgent.
Summary of the invention
It is an object of the invention to provide that a kind of electromagnetic torque is big, motor driving moment big, realize forward and reverse rotation of electric screw press flywheel, motor axial height is little, the large-tonnage direct-drive electric screw press permagnetic synchronous motor that operates steadily.
In order to achieve the above object, large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, including the cylindrical rotor being arranged on electric screw press flywheel, the motor stator being arranged on cylindrical rotor, it is arranged on the lining on cylindrical rotor external cylindrical surface, the some groups of permanent magnets being arranged on excircle of bushing cylinder, are arranged on the mouse cage on permanent magnet outer end, are arranged on the soft iron pole shoe between lining, mouse cage and two permanent magnets.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, described permanent magnet, for built-in permanent magnet, uniform it is arranged on cylindrical rotor circumferencial direction.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, its operation principle is: motor stator incoming transport electric current, rectified circuit conversion becomes DC current, produces rotating excitation field with certain power-up sequence excitation, and rotating excitation field drags rotary pole synchronous rotary with magnetic pull.By changing the electrical current direction of motor stator phase winding, change rotor direction of rotation, thus drive forward and reverse rotation of electric screw press flywheel.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, the built-in permanent magnet of many groups is inlayed at cylindrical rotor circumference, because rotor cylinder diameter is unrestricted, cylindrical rotor can make large diameter cylinder, can place and organize permanent magnet more, enhance the magnetic induction in magnetic field, make cylindrical rotor produce big electromagnetic torque, motor driving moment is big, meets the driving power demand of large-tonnage direct-drive electric screw press.Meanwhile, cylindrical rotor diameter is big, shortens axial dimension accordingly, reduces motor axial height, and motor axial height is little, improves motor running stability.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, permanent magnet uses longitudinal internal hidden type structure, decreases the leakage field between permanent magnet.
In sum, large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, electromagnetic torque is big, and motor driving moment is big, it is achieved forward and reverse rotation of electric screw press flywheel, motor axial height is little, operates steadily.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the present invention is further described.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1.
Detailed description of the invention
In Fig. 1, Fig. 2, large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, including the cylindrical rotor 1 being arranged on electric screw press flywheel 7, the motor stator 2 being arranged on cylindrical rotor, the lining 3 being arranged on cylindrical rotor external cylindrical surface, the some groups of permanent magnets 4 being arranged on excircle of bushing cylinder, the mouse cage 5 being arranged on permanent magnet outer end, it is arranged on the soft iron pole shoe 6 between lining, mouse cage and two permanent magnets.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, described permanent magnet, for built-in permanent magnet, uniform it is arranged on cylindrical rotor circumferencial direction.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, its work process is: during the energising of motor stator phase winding, rotating excitation field is set up in motor, rotary pole N pole and S pole are the most attracting with the S pole of permanent magnet and N respectively, rotary pole rotates with synchronous rotational speed with cylindrical rotor, drags permanent-magnet synchronous and rotates.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, at cylindrical rotor circumferencial direction, mosaic magnet's group number is determined according to electric screw press required driving torque, during the energising of motor stator phase winding, producing rotary pole, according to the magnetic magnetic physical characteristic that there is a natural attraction between the sexes, the same sex is repelled each other, rotating excitation field rotor driven is synchronized with the movement, cylindrical rotor is connected with electric screw press flywheel, directly drives electric screw press flywheel to rotate.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor of the present invention, in FIG, letter is identical, case-insensitive, and for same group of coil, power-up sequence is successively to A, B, C coil electricity.When needs change turns to, it is only necessary to change A, B, C coil electricity sense of current and can change the magnetic direction of generation.When turning clockwise, inferior be 1,2 coil electricity produce magnetic pole be S pole, inferior be 3,4 coil electricity produce magnetic pole be N pole；When turning counterclockwise, inferior be 1,2 coil electricity produce magnetic pole be N pole, inferior be 3,4 coil electricity produce magnetic pole be S pole.
Claims (2)
1. a large-tonnage direct-drive electric screw press permagnetic synchronous motor, it is characterized in that, including the cylindrical rotor being arranged on electric screw press flywheel, the motor stator being arranged on cylindrical rotor, it is arranged on the lining on cylindrical rotor external cylindrical surface, the some groups of permanent magnets being arranged on excircle of bushing cylinder, are arranged on the mouse cage on permanent magnet outer end, are arranged on the soft iron pole shoe between lining, mouse cage and two permanent magnets.
Large-tonnage direct-drive electric screw press permagnetic synchronous motor the most according to claim 1, it is characterised in that described permanent magnet, for built-in permanent magnet, uniform is arranged on cylindrical rotor circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303232.9U CN205622452U (en) | 2016-04-13 | 2016-04-13 | Large -tonnage is electronic screw press PMSM of formula of driving directly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303232.9U CN205622452U (en) | 2016-04-13 | 2016-04-13 | Large -tonnage is electronic screw press PMSM of formula of driving directly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622452U true CN205622452U (en) | 2016-10-05 |
Family
ID=57029800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620303232.9U Expired - Fee Related CN205622452U (en) | 2016-04-13 | 2016-04-13 | Large -tonnage is electronic screw press PMSM of formula of driving directly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436200A (en) * | 2018-05-13 | 2018-08-24 | 陕西理工大学 | The dual-servo-motor of large pitch nut directly drives helix extrusion device |
-
2016
- 2016-04-13 CN CN201620303232.9U patent/CN205622452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436200A (en) * | 2018-05-13 | 2018-08-24 | 陕西理工大学 | The dual-servo-motor of large pitch nut directly drives helix extrusion device |
| CN108436200B (en) * | 2018-05-13 | 2023-09-01 | 陕西理工大学 | Double-motor servo direct-drive screw extrusion device for large-lead nut |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20210413 |