CN113794353B - Electromagnetic induction passive magnetic planet wheel contactless transmission device - Google Patents
Electromagnetic induction passive magnetic planet wheel contactless transmission device Download PDFInfo
- Publication number
- CN113794353B CN113794353B CN202110925250.6A CN202110925250A CN113794353B CN 113794353 B CN113794353 B CN 113794353B CN 202110925250 A CN202110925250 A CN 202110925250A CN 113794353 B CN113794353 B CN 113794353B
- Authority
- CN
- China
- Prior art keywords
- wheel
- planet
- electromagnetic induction
- transmission device
- sun
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Friction Gearing (AREA)
Abstract
The invention provides an electromagnetic induction passive magnetic planet wheel contactless transmission device which comprises a shell, an iron ring, a copper ring, a sun gear train, four surface-mounted planet wheel trains and a planet carrier, wherein the iron ring, the copper ring, the sun gear train, the four surface-mounted planet wheel trains and the planet carrier are sequentially arranged in the shell from front to back, the four surface-mounted planet wheel trains are uniformly arranged on the front surface of the planet carrier along the circumferential direction, and a plurality of permanent magnets are uniformly distributed on a planet wheel disc of the surface-mounted planet wheel train. The magnetic planetary wheel transmission device solves the technical problems of single structure, too many permanent magnets, high cost, high processing and magnetizing difficulty, fixed speed ratio and the like of the magnetic wheel in the prior art, and provides the magnetic planetary wheel transmission device which is based on electromagnetic induction, simple in structure, simple and convenient to manufacture, low in cost, and capable of passively adjusting the speed ratio along with the load and providing flexible output torque.
Description
Technical Field
The invention relates to an electromagnetic induction passive magnetic planet wheel non-contact transmission device, and belongs to the technical field of magnetic non-contact transmission devices.
Background
Because the traditional mechanical gear adopts contact transmission, vibration noise in the operation process is inevitable, and when the bearing load torque is overlarge, the hidden trouble of tooth tip abrasion and even tooth breakage exists.
With the development of magnetic materials, magnetic gears have also been increasingly used. The current applications for magnetic wheels are mainly two: one is to use magnetic wheel coupling transmission, but mostly adopts three-rotor structure, the structure is complex, or each stage only has a pair of magnetic wheel meshing transmission, the running precision is low; the other method is to adopt a magnetic planetary gear train to carry out non-contact transmission, but the prior art has the technical problems of single structure, too much permanent magnet consumption, high cost, large processing and magnetizing difficulty, fixed speed ratio and the like.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a magnetic planetary gear transmission device which is based on electromagnetic induction, has a simple structure, is simple and convenient to manufacture, is low in cost, can passively adjust the speed ratio along with the load, and can provide flexible output torque.
The invention provides an electromagnetic induction passive magnetic planet wheel contactless transmission device which comprises a shell, an iron ring, a copper ring, a sun gear train, four surface-mounted planet gear trains and a planet carrier, wherein the iron ring, the copper ring, the sun gear train, the four surface-mounted planet gear trains and the planet carrier are sequentially arranged in the shell from front to back, the four surface-mounted planet gear trains are uniformly arranged on the front surface of the planet carrier along the circumferential direction, and a plurality of permanent magnets are uniformly distributed on a planet wheel disc of the surface-mounted planet gear trains.
Preferably, the housing comprises a front end cover, a shell and a rear end cover, the front surface of the shell is provided with the front end cover, and the rear surface of the shell is provided with the rear end cover.
Preferably, the sun gear train includes sun gear axle, sun iron wheel and sun copper wheel, installs sun iron wheel and sun copper wheel in proper order behind sun gear axle, and when the sun gear train is rotatory, because the electromagnetic induction law, the sun copper wheel among the sun gear train cuts the magnetic line of force that permanent magnet and sun iron wheel coupling formed on the planetary wheel dish to it is rotatory to drive the planetary wheel dish, and then makes the magnetic line of force that permanent magnet and iron ring coupling formed again by the copper ring cutting, under the irrotational condition of casing, the planet carrier is rotatory for the casing.
Preferably, axial magnetic circuits are respectively arranged between the planetary wheel disc and the iron ring and between the sun iron wheel and the planetary wheel disc.
Preferably, the surface-mounted planetary gear train comprises a plurality of permanent magnets, a planetary wheel disc, a planetary wheel shaft and a ball bearing, wherein the planetary wheel shaft is mounted at the center of the planetary wheel disc through the ball bearing, so that the planetary wheel shaft and the planetary wheel disc can rotate relatively.
Preferably, 8 permanent magnets are uniformly stuck on the front surface of the planetary wheel disc along the circumferential direction.
Preferably, the permanent magnets are magnetized along the axial direction, and the magnetizing directions of every two adjacent permanent magnets are opposite.
Preferably, the rear end cover centrally houses a ball bearing to engage the output shaft without affecting rotation of the output shaft.
Preferably, the front end cover centrally houses a ball bearing to fit the sun gear shaft and not affect rotation of the sun gear shaft.
Preferably, the planet carrier and the output shaft are of an integral structure.
The electromagnetic induction passive magnetic planet wheel contactless transmission device has the beneficial effects that:
1. the permanent magnets are only adhered to the surfaces of the planetary wheel discs, so that the permanent magnet material is less in use amount and low in cost.
2. The non-contact electromagnetic induction type transmission is adopted between the sun wheel and the planet wheel and between the planet wheel and the copper ring and the iron ring, so that the noise vibration between the gears is eliminated fundamentally.
3. The sun wheel, the copper ring and the iron ring are all made of pure copper or pure iron, no permanent magnet or winding is arranged in advance, no fixed coupling point is arranged when the sun wheel, the copper ring and the iron ring are coupled with the magnetic field of the planet wheel, namely, no fixed transmission ratio exists, therefore, the speed ratio can be passively adjusted according to the load, the torque of the output shaft is flexibly transmitted, and the transmission device cannot be damaged due to the problems of overload, locked rotation and the like.
4. The axial magnetic circuits are arranged between the planetary wheel disc and the iron ring and between the sun iron wheel and the planetary wheel disc, so that the volume of the transmission device can be effectively reduced compared with the radial magnetic circuit
5. The invention adopts a gearless planetary gear structure, does not need to consider the problem of tooth number matching between a sun gear and a planetary gear and between the planetary gear and an outer ring, and has the advantages of unlimited number of planetary gears and simple structure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is an exploded schematic view of an electromagnetic induction passive magnetic planetary wheel contactless transmission device according to the present invention;
FIG. 2 is an assembly structure diagram of an electromagnetic induction passive magnetic planet wheel contactless transmission device according to the present invention
FIG. 3 is a side cross-sectional view of an electromagnetic induction passive magnetic planet wheel contactless transmission device according to the present invention
FIG. 4 is a front cross-sectional view of an electromagnetic induction passive magnetic planet wheel contactless transmission device according to the present invention
FIG. 5 is an exploded view of the sun gear system
FIG. 6 is an exploded view of the planetary gear train
Wherein, 1-front end cover; 2-iron ring; 3-a copper ring; 4-sun gear shaft; 5-sun iron wheel; 6-sun copper wheel; 7-a housing; 8-a permanent magnet; 9-a planetary wheel disc; 10-a planet carrier; 11-rear end cap; 12-a ball bearing; 13-planet wheel shaft.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1 to 6. The electromagnetic induction passive magnetic planet wheel contactless transmission device comprises a shell, an iron ring 2, a copper ring 3, a sun gear train, four surface-mounted planet gear trains and a planet carrier 10, wherein the iron ring 2, the copper ring 3, the sun gear train, the four surface-mounted planet gear trains and the planet carrier 10 are sequentially installed in the shell from front to back, the four surface-mounted planet gear trains are evenly placed on the front surface of the planet carrier 10 along the circumferential direction, and a plurality of permanent magnets 8 are evenly distributed on a planet wheel disc 9 of the surface-mounted planet gear trains.
The shell comprises a front end cover 1, a shell 7 and a rear end cover 11, wherein the front end cover 1 is arranged on the front surface of the shell 7, and the rear end cover 11 is arranged on the rear surface.
The invention mainly comprises a front end cover 1, an iron ring 2, a copper ring 3, a sun gear train, a shell 7, four surface-mounted planetary gear trains, a planet carrier 10 and a rear end cover 11. Wherein, the ball bearing 12 is arranged at the center of the front end cover 1 to match with the sun gear shaft 4, the rotation of the sun gear shaft 4 is not influenced, and the outer ring of the front end cover 1 is connected with the shell 7. The iron ring 2 and the copper ring 3 are sequentially arranged behind the front end cover 1.
The sun gear system consists of a sun gear shaft 4, a sun iron wheel 5 and a sun copper wheel 6, wherein the sun iron wheel 5 and the sun copper wheel 6 are sequentially arranged behind the sun gear shaft 4.
The surface-mounted planetary gear train consists of permanent magnets 8, a planetary wheel disc 9, a planetary wheel shaft 13 and ball bearings 12, wherein the planetary wheel shaft 13 is installed at the center of the planetary wheel disc 9 through the ball bearings 12, so that the planetary wheel shaft and the planetary wheel disc 9 can rotate relatively, a plurality of fan-shaped permanent magnets 8 are uniformly adhered to the front surface of the planetary wheel disc 9 in the circumferential direction, the permanent magnets 8 are magnetized in the axial direction, the magnetizing directions of every two adjacent permanent magnets 8 are opposite, and the four surface-mounted planetary gear trains are uniformly arranged on the front surface of the planetary carrier 10 in the circumferential direction. The planet carrier 10 and the output shaft are integrated, that is, the rotation speed of the planet carrier 10 is the output rotation speed.
Axial magnetic circuits are arranged between the planetary wheel disc 9 and the iron ring 2 and between the sun iron wheel 5 and the planetary wheel disc 9, and compared with a radial magnetic circuit, the size of the transmission device can be effectively reduced.
The ball bearing 12 is arranged at the center of the rear end cover 11 to match the output shaft without influencing the rotation of the output shaft, and the outer ring of the rear end cover 11 is connected with the shell 7. When the sun gear train is rotatory, because the electromagnetic induction law, sun copper wheel 6 cuts the magnetic force line that permanent magnet 8 and sun iron wheel 5 coupling formed on the planet rim plate 9 to it is rotatory to drive planet rim plate 9, and then makes the magnetic force line that permanent magnet 8 and iron ring 2 coupling formed cut by copper ring 3 again, and under the circumstances that shell 7 can not rotate, planet carrier 10 is rotatory for shell 7, and the output shaft is rotatory promptly.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only exemplary of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention can be also reasonably combined with the features described in the above-mentioned embodiments.
Claims (9)
1. The electromagnetic induction passive magnetic planet wheel contactless transmission device is characterized by comprising a shell, an iron ring (2), a copper ring (3), a sun gear train, four surface-mounted planet wheel trains and a planet carrier (10), wherein the iron ring (2), the copper ring (3), the sun gear train, the four surface-mounted planet wheel trains and the planet carrier (10) are sequentially arranged in the shell from front to back, the four surface-mounted planet wheel trains are uniformly placed on the front surface of the planet carrier (10) along the circumferential direction, and a plurality of permanent magnets (8) are uniformly distributed on a planet wheel disc (9) of the surface-mounted planet wheel train; the sun gear train includes sun gear axle (4), sun iron wheel (5) and sun copper wheel (6), install sun iron wheel (5) and sun copper wheel (6) in proper order at sun gear axle (4) rear, when the sun gear train is rotatory, because the electromagnetic induction law, permanent magnet (8) and the magnetic line of force that sun iron wheel (5) coupling formed on sun copper wheel (6) cutting planet rim plate (9) in the sun gear train, thereby it is rotatory to drive planet rim plate (9), and then make permanent magnet (8) and the magnetic line of force that iron ring (2) coupling formed again by copper ring (3), under the circumstances that the casing can not rotate, the casing is rotatory relatively in planet carrier (10).
2. The electromagnetic induction passive magnetic planet contactless transmission device according to claim 1, wherein the housing comprises a front end cover (1), a housing (7) and a rear end cover (11), the front surface of the housing (7) is provided with the front end cover (1), and the rear surface is provided with the rear end cover (11).
3. The electromagnetic induction passive magnetic planet contactless transmission device according to claim 1, characterized in that axial magnetic circuits are arranged between the planet wheel disc (9) and the iron ring (2) and between the sun iron wheel (5) and the planet wheel disc (9).
4. The electromagnetic induction passive magnetic planetary contactless transmission device according to claim 2, characterized in that the surface-mounted planetary gear train includes several permanent magnets (8), a planetary wheel disc (9), a planetary wheel shaft (13) and a ball bearing (12), and the planetary wheel shaft (13) is mounted at the center of the planetary wheel disc (9) through the ball bearing (12) so that they can rotate relatively.
5. The electromagnetic induction passive magnetic planet wheel contactless transmission device according to claim 4, characterized in that 8 permanent magnets (8) are uniformly stuck on the front surface of the planet wheel disc (9) along the circumferential direction.
6. The electromagnetic induction passive magnetic planet wheel contactless transmission device according to claim 4, characterized in that the permanent magnets (8) are magnetized in the axial direction, and the magnetizing directions of every two adjacent permanent magnets (8) are opposite.
7. The electromagnetic induction passive magnetic planet contactless transmission device according to claim 4, characterized in that the ball bearing (12) is placed in the center of the rear end cover (11) to match the output shaft, and the rotation of the output shaft is not affected.
8. The electromagnetic induction passive magnetic planetary contactless transmission of claim 4, characterized by the fact that the front end cover (1) houses centrally a ball bearing (12) to fit the sun gear shaft (4) without affecting the rotation of the sun gear shaft (4).
9. The electromagnetic induction passive magnetic planet wheel contactless transmission device according to claim 1, characterized in that the planet carrier (10) and the output shaft are of an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110925250.6A CN113794353B (en) | 2021-08-12 | 2021-08-12 | Electromagnetic induction passive magnetic planet wheel contactless transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110925250.6A CN113794353B (en) | 2021-08-12 | 2021-08-12 | Electromagnetic induction passive magnetic planet wheel contactless transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113794353A CN113794353A (en) | 2021-12-14 |
| CN113794353B true CN113794353B (en) | 2022-07-26 |
Family
ID=79181663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110925250.6A Active CN113794353B (en) | 2021-08-12 | 2021-08-12 | Electromagnetic induction passive magnetic planet wheel contactless transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113794353B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780342A (en) * | 2012-08-27 | 2012-11-14 | 西北工业大学 | Four-phase transverse magnetic field permanent-magnet motor with magnetism-collected structure |
| CN203674952U (en) * | 2013-12-18 | 2014-06-25 | 江苏大学 | Magnetic field enhanced high-torque density magneto-type planetary gear |
| CN104506015A (en) * | 2014-11-19 | 2015-04-08 | 南方科技大学 | Magnetic transmission device |
| CN109139854A (en) * | 2018-09-29 | 2019-01-04 | 济南大学 | A kind of magnetic-type planetary gear design method |
| CN111786535A (en) * | 2020-07-01 | 2020-10-16 | 中原工学院 | Multi-group combined type permanent magnet eddy current coupler |
-
2021
- 2021-08-12 CN CN202110925250.6A patent/CN113794353B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780342A (en) * | 2012-08-27 | 2012-11-14 | 西北工业大学 | Four-phase transverse magnetic field permanent-magnet motor with magnetism-collected structure |
| CN203674952U (en) * | 2013-12-18 | 2014-06-25 | 江苏大学 | Magnetic field enhanced high-torque density magneto-type planetary gear |
| CN104506015A (en) * | 2014-11-19 | 2015-04-08 | 南方科技大学 | Magnetic transmission device |
| CN109139854A (en) * | 2018-09-29 | 2019-01-04 | 济南大学 | A kind of magnetic-type planetary gear design method |
| CN111786535A (en) * | 2020-07-01 | 2020-10-16 | 中原工学院 | Multi-group combined type permanent magnet eddy current coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113794353A (en) | 2021-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110336451B (en) | Combined eccentric magnetic force harmonic gear transmission device | |
| CN113794353B (en) | Electromagnetic induction passive magnetic planet wheel contactless transmission device | |
| CN217301454U (en) | Integrated planetary reduction power module | |
| CN216290628U (en) | Non-contact double-stage speed reducing motor | |
| KR20210024134A (en) | Vehicle powertrain and vehicle | |
| CN212096415U (en) | Magnetic gear transmission robot joint module | |
| JP3942102B2 (en) | Magnetic planetary gear unit | |
| CN107332429A (en) | A kind of magnetic force coupling gearing device | |
| CN111015728B (en) | Composite planetary magnetic transmission integrated robot joint | |
| CN211046724U (en) | Cylinder type magnetic wheel transmission device | |
| CN218927867U (en) | Planetary gear motor with high torque density and joint module | |
| CN211039626U (en) | Ultra-silent speed reducer | |
| CN206409596U (en) | It is a kind of to be used for gear and the permanent magnet gear transmission device of torque drive | |
| CN205618629U (en) | Disk permanent magnetism speed change gear | |
| CN215293464U (en) | Zero-friction magnetic suspension planetary transmission mechanism | |
| CN220190606U (en) | Wheel coupling transmission device with permanent magnet floating flexible inertia | |
| CN211530990U (en) | Magnetic wheel | |
| CN221354080U (en) | Compact centrally-mounted motor | |
| CN210693745U (en) | Two-stage series magnetic wheel transmission device | |
| CN217328304U (en) | Two-stage cycloid speed reducer | |
| CN211039619U (en) | Low-noise speed reducer | |
| CN216975700U (en) | Torque-adjustable magnetic transmission planetary speed reducer | |
| CN211333267U (en) | Bionic robot elbow joint output device | |
| CN209164500U (en) | A kind of planet wheel decelerator with multistep speed regulation | |
| CN218913634U (en) | Bilateral coupling axial nutation magnetic speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |