CN213458635U - Novel rotary magnetic field generator - Google Patents
Novel rotary magnetic field generator Download PDFInfo
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- CN213458635U CN213458635U CN202022536847.5U CN202022536847U CN213458635U CN 213458635 U CN213458635 U CN 213458635U CN 202022536847 U CN202022536847 U CN 202022536847U CN 213458635 U CN213458635 U CN 213458635U
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- rotary
- magnetic field
- rotating
- rod
- worm
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Abstract
The utility model discloses a novel rotary magnetic field generator, which comprises a demonstration device shell, wherein one side of the demonstration device shell is provided with a rotary plate, one side of the rotary plate is provided with a rotary handle, the other side of the rotary plate is provided with a rotary worm, the rotary worm penetrates through the demonstration device shell, the rotary worm is provided with a rotary worm wheel, the rotary worm wheel is meshed with the rotary worm, the middle part of the rotary worm wheel is provided with a rotary rod, the rotary rod is provided with a rotary platform, the rotary platform is connected with the rotary rod, the rotary platform is symmetrically provided with strong permanent magnets, the outer parts of the strong permanent magnets are provided with fixed blocks, the strong permanent magnets penetrate through the fixed blocks, the device uses the rotary magnets to replace the rotary magnetic field generated by the current of a motor stator winding to observe the motion characteristics of a, the principle of the operation of the induction motor is demonstrated, and students can conveniently and quickly master the knowledge of the rotating magnetic field.
Description
Technical Field
The utility model relates to a rotating field particularly, relates to a novel rotating field generator.
Background
"rotating magnetic field" is a magnetic field that rotates in space at a constant rotational speed, with the magnitude of the magnetic field remaining unchanged. When a symmetrical three-phase current flows through the symmetrical three-phase winding, a rotating magnetic field is generated, which rotates the magnetic field in the air gap of the alternating current motor in space continuously as the current alternates. The rotor core is named after continuously rotating along the cylindrical surfaces of the stator core and the rotor core. The rotating magnetic field is the basic condition for interconversion between electrical energy and rotational mechanical energy. Typically, the stator of a three-phase ac motor has symmetrical three-phase windings (see armature windings). When any phase winding is electrified with alternating current, a pulsating magnetic field is generated. However, if balanced three-phase currents are applied to the three-phase symmetrical windings, a magnetic field rotating in space is generated. The axis of symmetry phi of the magnetic field rotates with time, and its speed of rotation ns, which is determined by the current frequency f and the pole pair number P, is called synchronous speed or synchronous speed (expressed in revolutions per minute). The frequency f of the industrial power supply currently applied in China is 50 Hz, so that ns of a two-pole motor (P is 1) is 3000 r/min; the ns of a four-pole motor (P2) is 1500 rpm, and in the electrical engineering discipline, when a magnetic field rotates, three-phase asynchronous motors are mostly used for demonstration, but the demonstration of the three-phase asynchronous motors is not easy to understand for beginners, and the time for mastering the knowledge of the rotating magnetic field is reduced.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel rotatory magnetic field generator to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a novel rotary magnetic field generator comprises a demonstration device shell, wherein a rotary plate is arranged on one side of the demonstration device shell, a rotary handle is arranged on one side of the rotary plate, a rotary worm is arranged on the other side of the rotary plate and penetrates through the demonstration device shell, a rotary worm wheel is arranged on the rotary worm and is meshed with the rotary worm, a rotary rod is arranged in the middle of the rotary worm wheel, a rotary platform is arranged on the rotary rod and is connected with the rotary rod, strong permanent magnets are symmetrically arranged on the rotary platform, fixed blocks are arranged outside the strong permanent magnets and penetrate through the fixed blocks, a partition plate is arranged on the rotary platform, a support column is arranged below the partition plate and is connected with the demonstration device shell, and a rotary bearing is arranged inside the partition plate, the rotary bearing is provided with a connecting rod, the connecting rod is connected with the rotary bearing, and a rotary copper plate is arranged on the periphery of the connecting rod.
Furthermore, one side of the rotating worm is provided with a ball bearing.
Furthermore, one side of the rotating worm wheel is provided with a driven gear, the driven gear is meshed with the rotating worm wheel, the middle part of the driven gear is provided with a gear rod, and fan blades are arranged on the periphery of the gear rod.
Furthermore, a noise reduction plate is arranged on one side of the shell of the demonstration device.
Further, rotatory worm wheel one side is equipped with the removal gear, rotatory worm wheel with the removal gear meshes mutually, the removal gear has driving motor, driving motor and external power source electric connection, the last carriage release lever that is equipped with of driving motor, be equipped with on the carriage release lever and be equipped with the removal ejector pad, the carriage release lever with the removal ejector pad is connected.
Furthermore, a base is arranged below the shell of the demonstration device.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the rotating plate is driven to rotate by the rotating handle, the rotating plate is connected with the rotating worm, the rotating worm is driven to rotate when the rotating plate rotates, the rotating worm is meshed with the rotating worm wheel, the rotating rod is driven to rotate when the rotating worm wheel rotates, the rotating rod is driven to rotate, the rotating rod drives the rotating platform, the rotating platform drives the powerful permanent magnet to rotate when the rotating platform rotates, at the moment, a rotating magnetic field is formed by the rotation of the powerful permanent magnet, and the rotating copper plate on the isolating plate is driven to rotate by the rotating magnetic field. The device uses the rotating magnet to replace the rotating magnetic field generated by the motor stator winding current, observes the motion characteristic of the conductor in the rotating magnetic field, demonstrates the principle of the operation of the induction motor, and is convenient for students to rapidly master the knowledge of the rotating magnetic field.
(2) Through setting up ball bearing, thereby make rotatory worm rotate through ball bearing's fixed, through setting up driven gear, thereby make rotatory worm wheel drive driven gear rotatory when rotatory, and then make driven gear drive flabellum dispel the heat to presentation device shell inside through the gear lever when rotatory, fall the board of making an uproar through setting up, thereby make the noise that can send when can effectual reduction rotatory magnetic field generator operation, through setting up moving gear, thereby make the user of service do not want when manual rotation, make rotatory worm wheel with moving gear meshes mutually through removing the ejector pad, thereby make driving motor drive moving gear drive rotatory worm wheel rotate when rotatory, through setting up the base, thereby reach strutting arrangement's purpose.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a main structure of a novel rotary magnetic field generator according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a housing of a demonstration apparatus in a novel rotary magnetic field generator according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of the middle spacer of the rotary platform in the novel rotary magnetic field generator according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a novel rotating magnetic field generator according to an embodiment of the present invention.
Reference numerals:
1. a presentation device housing; 2. a rotating plate; 3. rotating the handle; 4. rotating the worm; 5. rotating the worm gear; 6. rotating the rod; 7. rotating the platform; 8. a powerful permanent magnet; 9. a fixed block; 10. a separator plate; 11. a support pillar; 12. a rotating bearing; 13. a connecting rod; 14. rotating the copper plate; 15. a ball bearing; 16. a driven gear; 17. rotating the rod; 18. a fan blade; 19. a noise reduction plate; 20. a moving gear; 21. a travel bar; 22. moving the push block; 23. a base.
Detailed Description
The following, with reference to the drawings and the detailed description, further description of the present invention is made:
the first embodiment is as follows:
referring to fig. 1-4, a novel rotary magnetic field generator according to an embodiment of the present invention includes a demonstration device housing 1, said demonstration device housing 1 is provided with a rotary plate 2 on one side of said demonstration device housing 1, said rotary plate 2 is provided with a rotary handle 3 on one side of said rotary plate 2, said rotary plate 2 is provided with a rotary worm 4 on the other side of said demonstration device housing 1, said rotary worm 4 penetrates said demonstration device housing 1, said rotary worm 4 is provided with a rotary worm wheel 5, said rotary worm wheel 5 is engaged with said rotary worm 4, said rotary worm wheel 5 is provided with a rotary rod 6 in the middle, said rotary rod 6 is provided with a rotary platform 7, said rotary platform 7 is connected with said rotary rod 6, rotary platform go up the symmetry and be equipped with powerful permanent magnet 8, powerful permanent magnet 8 the outside is equipped with the fixed block 9, powerful permanent magnet 8 run through the fixed block 9, rotary platform 7 be equipped with the division board 10, the division board 10 have the support column 11, the support column 11 with the presentation device shell 1 be connected, the division board 10 the inside is equipped with swivel bearing 12, swivel bearing 12 be equipped with the connecting rod 13, the connecting rod 13 with swivel bearing 12 be connected, the connecting rod 13 the periphery is equipped with rotatory copper 14.
By the above scheme of the utility model, the rotating handle 3 is arranged, so that the rotating handle 3 drives the rotating plate 2 to rotate, the rotating plate 2 is connected with the rotating worm 4, thereby driving the rotating worm 4 to rotate when the rotating plate 2 rotates, and enabling the rotating worm 4 to be meshed with the rotating worm wheel 5, so that said rotation of said 5 rotating worm wheel drives said 6 rotating rod to rotate, so that the rotating rod 6 drives the rotating platform 7, the rotating platform 7 drives the powerful permanent magnet 8 to rotate during rotation, and then a rotating magnetic field is formed by the rotation of the powerful permanent magnet 8, so that the rotating magnetic field rotates the rotating copper plate 14 on the isolating plate 10. The device uses the rotating magnet to replace the rotating magnetic field generated by the motor stator winding current, observes the motion characteristic of the conductor in the rotating magnetic field, demonstrates the principle of the operation of the induction motor, and is convenient for students to rapidly master the knowledge of the rotating magnetic field.
Example two:
referring to fig. 1-4, the driven gear 16 is arranged on one side of the rotating worm wheel 5, the driven gear 16 is engaged with the rotating worm wheel 5, the gear rod 17 is arranged in the middle of the driven gear 16, the fan blades 18 are arranged on the periphery of the gear rod 17, the noise reduction plate 19 is arranged on one side of the demonstration device shell 1, the moving gear 20 is arranged on one side of the rotating worm wheel 5, the rotating worm wheel 5 is engaged with the moving gear 20, the driving motor is arranged below the moving gear 20, the driving motor is electrically connected with an external power supply, the moving rod 21 is arranged on the driving motor, the moving push block 22 is arranged on the moving rod 21, the movable rod 21 is connected with the movable push block 22, and a base 23 is arranged below the demonstration device shell 1.
By the above-mentioned scheme of the utility model, through setting up ball bearing said 15 said, thereby make the rotatory worm 4 said rotate through ball bearing said 15 said fixed carrying on the rotation, through setting up driven gear said 16 said, thereby make the rotatory worm wheel said 5 said drive driven gear when rotating said 16 said rotate, and then make driven gear said 16 said when rotating through gear pole said 17 said drive flabellum said 18 to the inside heat dissipation of presentation device shell 1, through setting up noise reduction board said 19 said, thereby make can be effective to reduce the noise that the rotatory magnetic field generator sent out when operation, through setting up the moving gear said 20 said, thereby when making the user not want the manual rotation, through moving the ejector pad said 22 make the rotatory worm wheel said 5 said with said moving gear said 20 said mesh, therefore, the driving motor drives the moving gear 20 to rotate, the rotating worm gear 5 is driven to rotate, and the purpose of the supporting device is achieved by arranging the base 23.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.
In practical application, the rotating handle 3 is arranged, so that the rotating handle 3 drives the rotating plate 2 to rotate, the rotating plate 2 is connected with the rotating worm 4, thereby driving the rotating worm 4 to rotate when the rotating plate 2 rotates, and enabling the rotating worm 4 to be meshed with the rotating worm wheel 5, so that said rotation of said 5 rotating worm wheel drives said 6 rotating rod to rotate, so that the rotating rod 6 drives the rotating platform 7, the rotating platform 7 drives the powerful permanent magnet 8 to rotate during rotation, and then a rotating magnetic field is formed by the rotation of the powerful permanent magnet 8, so that the rotating magnetic field rotates the rotating copper plate 14 on the isolating plate 10. Therefore, students can visually see the movement characteristics in the rotating magnetic field, the device replaces the rotating magnetic field generated by the current of the stator winding of the motor with the rotating magnet, observes the movement characteristics of the conductor in the rotating magnetic field, demonstrates the operation principle of the induction motor, and is convenient for the students to quickly master the knowledge of the rotating magnetic field, the rotating worm 4 is fixed and rotated through the ball bearing 15 by arranging the ball bearing 15, the rotating worm wheel 5 drives the driven gear 16 to rotate when rotating, the driven gear 16 drives the fan blades 18 to dissipate heat inside the shell 1 of the demonstration device through the gear rod 17 when rotating, and the noise generated when the rotating magnetic field generator operates can be effectively reduced by arranging the noise reduction plate 19, the movable gear 20 is arranged, so that when a user does not want to manually rotate, the rotating worm wheel 5 is meshed with the movable gear 20 by moving the push block 22, the driving motor drives the movable gear 20 to rotate, the rotating worm wheel 5 is driven to rotate, and the supporting device is arranged by arranging the base 23.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a novel rotary magnetic field generator, includes presentation device shell (1), its characterized in that, presentation device shell (1) one side is equipped with rotor plate (2), rotor plate (2) one side is equipped with twist grip (3), rotor plate (2) opposite side is equipped with rotatory worm (4), rotatory worm (4) run through presentation device shell (1), be equipped with rotatory worm wheel (5) on rotatory worm (4), rotatory worm wheel (5) with rotatory worm (4) mesh mutually, rotatory worm wheel (5) middle part is equipped with rotary rod (6), be equipped with rotary platform (7) on rotary rod (6), rotary platform (7) with rotary rod (6) are connected, the symmetry is equipped with powerful permanent magnet (8) on rotary platform (7), powerful permanent magnet (8) outside is equipped with fixed block (9), powerful permanent magnet (8) run through fixed block (9), be equipped with division board (10) on rotary platform (7), division board (10) have support column (11), support column (11) are connected with presentation device shell (1), division board (10) inside is equipped with swivel bearing (12), be equipped with connecting rod (13) on swivel bearing (12), connecting rod (13) with swivel bearing (12) are connected, connecting rod (13) periphery is equipped with rotatory copper (14).
2. A new rotating magnetic field generator according to claim 1 characterized by the fact that the rotating worm (4) is provided with a ball bearing (15) on one side.
3. A novel rotary magnetic field generator according to claim 1, characterized in that a driven gear (16) is provided at one side of the rotary worm wheel (5), the driven gear (16) is engaged with the rotary worm wheel (5), a gear rod (17) is provided at the middle part of the driven gear (16), and fan blades (18) are provided at the periphery of the gear rod (17).
4. A novel rotating magnetic field generator according to claim 1 characterized by that the demonstration device housing (1) is provided with a noise reduction plate (19) on one side.
5. The novel rotary magnetic field generator according to claim 3, characterized in that a moving gear (20) is disposed on one side of the rotary worm gear (5), the rotary worm gear (5) is engaged with the moving gear (20), a driving motor is disposed under the moving gear (20), the driving motor is electrically connected to an external power source, a moving rod (21) is disposed on the driving motor, a moving push block (22) is disposed on the moving rod (21), and the moving rod (21) is connected to the moving push block (22).
6. A novel rotating magnetic field generator according to claim 4 characterized in that a base (23) is provided under the demonstration device housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022536847.5U CN213458635U (en) | 2020-11-05 | 2020-11-05 | Novel rotary magnetic field generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022536847.5U CN213458635U (en) | 2020-11-05 | 2020-11-05 | Novel rotary magnetic field generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213458635U true CN213458635U (en) | 2021-06-15 |
Family
ID=76298935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022536847.5U Expired - Fee Related CN213458635U (en) | 2020-11-05 | 2020-11-05 | Novel rotary magnetic field generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213458635U (en) |
-
2020
- 2020-11-05 CN CN202022536847.5U patent/CN213458635U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210615 Termination date: 20211105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |