CN211039579U - Magnetic connecting device for duplicate gears and assembly thereof - Google Patents
Magnetic connecting device for duplicate gears and assembly thereof Download PDFInfo
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- CN211039579U CN211039579U CN201921890342.XU CN201921890342U CN211039579U CN 211039579 U CN211039579 U CN 211039579U CN 201921890342 U CN201921890342 U CN 201921890342U CN 211039579 U CN211039579 U CN 211039579U
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Abstract
The utility model provides a magnetic connecting device of a duplicate gear and a component thereof, which comprises a first gear and a second gear which are coaxially arranged; the first gear is coaxially and fixedly connected with the first magnet, and the second gear is coaxially and fixedly connected with the second magnet; the first magnet and the second magnet are arranged in an up-and-down overlapping mode and are coaxially and fixedly connected through a rotating shaft; the first magnet is provided with a first north pole portion and a first south pole portion, the second magnet is provided with a second north pole portion and a second south pole portion, the first north pole portion and the second south pole portion are opposite in attraction, and the first south pole portion and the second north pole portion are opposite in attraction, so that the first magnet and the second magnet are mutually attracted through magnetic force, transmission torque is generated, and the first gear and the second gear rotate coaxially. By applying the technical scheme, the excessive torque can be automatically leaked, and the torque overload protection effect is achieved.
Description
Technical Field
The utility model relates to a gear interlock field specifically indicates a duplicate gear magnetism connecting device and subassembly thereof.
Background
In the conventional technology, a duplicate gear generally has a hard connection, a ratchet connection, an axial spring pre-pressing ball connection and the like. In the first connection transmission, a driving gear and a driven gear are always kept consistent, and when the torque is larger than a certain value, the gear is damaged. The second kind of transmission torque is influenced by the elastic arm force of the ratchet wheel, exceeds the deformation force of the elastic arm, the upper gear and the lower gear can slide relatively to unload redundant torque, and the effect of torque overload protection is achieved. The third transmission torque is pre-pressed by the spring, the ball is influenced by the relative sliding force of the ball, the ball exceeds the relative sliding force of the ball, the ball can push the pre-pressed spring to move upwards, the upper gear and the lower gear slide relatively, the redundant torque is removed, and the torque overload protection effect is achieved. But rely on the spring pre-compaction, relatively high to the spring requirement, the structure is complicated, and production is more difficult, and the in-process that skids, the gear can jump from top to bottom, has wearing and tearing to the cooperation gear.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a duplicate gear magnetism connecting device and subassembly thereof realizes independently letting out the moment of torsion of many plays, plays moment of torsion overload protection's effect.
In order to solve the technical problem, the utility model provides a magnetic connection device for a duplicate gear, which comprises a first gear and a second gear which are coaxially arranged; the first gear is coaxially and fixedly connected with the first magnet, and the second gear is coaxially and fixedly connected with the second magnet; the first magnet and the second magnet are overlapped up and down and are coaxially connected through a rotating shaft; the first magnet is provided with a first north pole portion and a first south pole portion, the second magnet is provided with a second north pole portion and a second south pole portion, the first north pole portion and the second south pole portion are opposite in attraction, and the first south pole portion and the second north pole portion are opposite in attraction, so that the first magnet and the second magnet are mutually attracted through magnetic force, transmission torque is generated, and the first gear and the second gear rotate coaxially.
In a preferred embodiment, the first magnet and the second magnet are symmetrically and equally divided into an even number of first end faces and second end faces along the center; each first end face is provided with a first north pole part or a first south pole part, and the first north pole part and the first south pole part are arranged at intervals; each second end face is provided with a second north pole part or a second south pole part, and the second north pole part and the second south pole part are arranged at intervals; the first north pole part on the first magnet is opposite and opposite to the second south pole part on the second magnet, and the first south pole part on the first magnet is opposite and opposite to the second north pole part on the second magnet.
In a preferred embodiment, the middle parts of the first gear, the first magnet, the second gear and the second magnet are respectively provided with a first connecting groove, a second connecting groove, a third connecting groove and a fourth connecting groove; the second connecting groove and the fourth connecting groove are arranged in a vertically corresponding manner, a connecting column with a connecting hole is arranged in the second connecting groove and the fourth connecting groove, and the first magnet, the second magnet and the connecting column are arranged in the third connecting groove; the rotating shaft is inserted into the first connecting groove and the connecting hole for fixing.
The utility model also provides a duplicate gear magnetic connecting device component, which adopts the duplicate gear magnetic connecting device and also comprises a first matching duplicate gear device and a second matching duplicate gear device which are arranged on the left and the right of the duplicate gear magnetic connecting device;
the first matching duplicate gear device comprises a second rotating shaft, a third gear and a fourth gear, and the second matching duplicate gear device comprises a third rotating shaft, a fifth gear and a sixth gear; the third gear and the fourth gear are coaxially arranged up and down and are coaxially and fixedly connected through the second rotating shaft; the fifth gear and the sixth gear are coaxially arranged up and down and are coaxially and fixedly connected through the third rotating shaft.
In a preferred embodiment, the third gear of the first mating dual gear arrangement meshes with the second gear of the dual gear magnetic linkage, and the first gear of the dual gear magnetic linkage meshes with the sixth gear of said second mating dual gear arrangement.
In a preferred embodiment, the second rotating shaft rotates to drive the third gear and the fourth gear to rotate coaxially and in the same direction, the third gear drives the second gear to rotate, the second gear drives the first gear and the second gear to rotate coaxially and in the same direction, the first gear drives the sixth gear to rotate, and the sixth gear drives the fifth gear and the sixth gear to rotate coaxially and in the same direction.
In a preferred embodiment, when the torque exceeds the attractive force of the first magnet and the second magnet, the first gear and the second gear rotate relatively in a coaxial direction, and the first magnet and the second magnet are separated relatively.
In a preferred embodiment, the torque depends on the attraction and repulsion between the first and second magnets, and the amount of magnets, the contact surface of the attraction, the diameter of the magnets, and the distance between the magnets
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
the utility model provides a duplicate gear magnetism connecting device and subassembly thereof surpasss the certain limit when the moment of torsion, surpasss the attraction to of magnet, will produce relative rotation between first gear and the second gear, lets out the moment of torsion of many plays moment of torsion overload protection's effect. The like magnetic poles of the magnets repel each other, the unlike magnetic poles attract each other, and the end face multi-stage magnets are mutually attracted and mounted together. The attraction force, the repulsion force, the magnet quantity of the magnet, the contact surface of the attraction force, the diameter of the magnet and the distance between the two magnetic forces are adjusted to change the magnitude of the overload protection torque. In addition, through above-mentioned structural scheme, first magnet, second magnet and spliced pole all set up in inside the third spread groove, overall structure is compact, and the space of connecting has been saved to a great extent, has saved advantages such as second gear need set up the axis of rotation alone.
Drawings
Fig. 1 is a schematic structural view of a duplicate gear magnetic connecting device assembly according to a preferred embodiment of the present invention;
fig. 2 is a schematic structural diagram of a dual-gear magnetic connecting device assembly according to a preferred embodiment of the present invention when the torque exceeds a certain range;
fig. 3 is a schematic cross-sectional structure view of a dual-gear magnetic connecting device assembly according to a preferred embodiment of the present invention;
fig. 4 is a schematic structural view of a dual-gear magnetic connecting device in a preferred embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure view of a dual-gear magnetic connecting device according to a preferred embodiment of the present invention;
fig. 6 is a schematic structural view of a position relationship between the first gear and the first magnet according to the preferred embodiment of the present invention;
fig. 7 is a schematic structural view of a position relationship between a second gear and a second magnet according to a preferred embodiment of the present invention;
fig. 8 is a schematic view of the magnetic pole distribution of the first magnet according to the preferred embodiment of the present invention.
Detailed Description
The invention is further described with reference to the drawings and the detailed description.
Referring to fig. 1 to 8, a magnetic dual-gear connecting device assembly includes a first mating dual-gear device and a second mating dual-gear device disposed on the left and right sides of the magnetic dual-gear connecting device.
The duplicate gear magnetic connecting device comprises a first gear 3 and a second gear 4 which are coaxially arranged; the first gear 3 is coaxially and fixedly connected with a first magnet 10, and the second gear 4 is coaxially and fixedly connected with a second magnet 11; the first magnet 10 and the second magnet 11 are overlapped up and down and are coaxially connected through a first rotating shaft 8; the first magnet 10 is provided with a first north pole portion 101 and a first south pole portion 102, the second magnet 11 is provided with a second north pole portion and a second south pole portion, the first north pole portion 101 and the second south pole portion attract each other in an opposite polarity mode, and the first south pole portion 102 and the second north pole portion attract each other in an opposite polarity mode, so that the first magnet 10 and the second magnet 11 mutually attract each other through magnetic force, transmission torque is generated, and the first gear 3 and the second gear 4 rotate coaxially.
Specifically, the first magnet 10 and the second magnet 11 are symmetrically and equally divided into an even number of first end faces and second end faces along the center; each first end face is provided with a first north pole part 101 or a first south pole part 102, and the first north pole part 101 and the first south pole part 102 are arranged at intervals; each second end face is provided with a second north pole part or a second south pole part, and the second north pole part and the second south pole part are arranged at intervals; the first north pole part 101 of the first magnet 10 is opposite-attracted to the second south pole part of the second magnet 11, and the first south pole part 102 of the first magnet 10 is opposite-attracted to the second north pole part of the second magnet 11.
In this embodiment, the middle portions of the first gear 3, the first magnet 10, the second gear 4 and the second magnet 11 are respectively provided with a first connecting groove, a second connecting groove, a third connecting groove and a fourth connecting groove; the second connecting groove and the fourth connecting groove are arranged in a vertically corresponding manner, a connecting column with a connecting hole is arranged in the second connecting groove and the fourth connecting groove, and the first magnet 10, the second magnet 11 and the connecting column are arranged in the third connecting groove; the first rotating shaft 8 is inserted into the first connecting groove and the connecting hole to be fixed.
Specifically, the first mating dual gear device comprises a second rotating shaft 7, a third gear 1 and a fourth gear 2, and the second mating dual gear device comprises a third rotating shaft 9, a fifth gear 5 and a sixth gear 6; the third gear 1 and the fourth gear 2 are coaxially arranged up and down and are coaxially and fixedly connected through the second rotating shaft 7; the fifth gear 5 and the sixth gear 6 are coaxially arranged up and down and are coaxially and fixedly connected through the third rotating shaft 9.
The third gear 1 of the first mating duplicate gear device is engaged with the second gear 4 of the duplicate gear magnetic connecting device, and the first gear 3 of the duplicate gear magnetic connecting device is engaged with the sixth gear 6 of the second mating duplicate gear device. The second rotating shaft 7 rotates to drive the third gear 1 and the fourth gear 2 to rotate coaxially and in the same direction, the third gear 1 drives the second gear 4 to rotate, the second gear 4 drives the first gear 3 and the second gear 4 to rotate coaxially and in the same direction, the first gear 3 drives the sixth gear 6 to rotate, and the sixth gear 6 drives the fifth gear 5 and the sixth gear 6 to rotate coaxially and in the same direction. When the torque exceeds the facing attraction force of the first magnet 10 and the second magnet 11, the first gear 3 and the second gear 4 rotate relatively in the coaxial direction, and the first magnet 10 and the second magnet 11 are separated relatively. Specifically, the torque depends on the attractive and repulsive forces between the first and second magnets 10 and 11, as well as the amount of magnets, the contact surfaces of the attractive forces, the magnet diameter, and the distance between the magnets.
The utility model provides a duplicate gear magnetism connecting device and subassembly thereof surpasss the certain limit when the moment of torsion, surpasss the attraction of magnet, will produce relative rotation between first gear 3 and the second gear 4, lets out the moment of torsion of excessive play, plays moment of torsion overload protection's effect. The like magnetic poles of the magnets repel each other, the unlike magnetic poles attract each other, and the end face multi-stage magnets are mutually attracted and mounted together. The attraction force, the repulsion force, the magnet quantity of the magnet, the contact surface of the attraction force, the diameter of the magnet and the distance between the two magnetic forces are adjusted to change the magnitude of the overload protection torque.
The above, only be the preferred embodiment of the present invention, but the design concept of the present invention is not limited to this, and any skilled person familiar with the technical field is in the technical scope disclosed in the present invention, and it is right to utilize this concept to perform insubstantial changes to the present invention, all belong to the act of infringing the protection scope of the present invention.
Claims (8)
1. A magnetic connecting device for a duplicate gear is characterized by comprising a first gear and a second gear which are coaxially arranged; the first gear is coaxially and fixedly connected with the first magnet, and the second gear is coaxially and fixedly connected with the second magnet; the first magnet and the second magnet are overlapped up and down and are coaxially connected through a rotating shaft; the first magnet is provided with a first north pole portion and a first south pole portion, the second magnet is provided with a second north pole portion and a second south pole portion, the first north pole portion and the second south pole portion are opposite in attraction, and the first south pole portion and the second north pole portion are opposite in attraction, so that the first magnet and the second magnet are mutually attracted through magnetic force, transmission torque is generated, and the first gear and the second gear rotate coaxially.
2. A dual-gear magnetic connecting device according to claim 1, wherein the first magnet and the second magnet are symmetrically and equally divided into an even number of first end faces and second end faces; each first end face is provided with a first north pole part or a first south pole part, and the first north pole part and the first south pole part are arranged at intervals; each second end face is provided with a second north pole part or a second south pole part, and the second north pole part and the second south pole part are arranged at intervals; the first north pole part on the first magnet is opposite and opposite to the second south pole part on the second magnet, and the first south pole part on the first magnet is opposite and opposite to the second north pole part on the second magnet.
3. A dual gear magnetic connecting device according to claim 1, wherein the first gear, the first magnet, the second gear and the second magnet are provided at the middle portions thereof with a first connecting groove, a second connecting groove, a third connecting groove and a fourth connecting groove, respectively; the second connecting groove and the fourth connecting groove are arranged in a vertically corresponding manner, a connecting column with a connecting hole is arranged in the second connecting groove and the fourth connecting groove, and the first magnet, the second magnet and the connecting column are arranged in the third connecting groove; the rotating shaft is inserted into the first connecting groove and the connecting hole for fixing.
4. A dual gear magnetic connecting device assembly characterized by employing the dual gear magnetic connecting device of any one of claims 1 to 3, further comprising a first mating dual gear device and a second mating dual gear device disposed on the left and right of the dual gear magnetic connecting device;
the first matching duplicate gear device comprises a second rotating shaft, a third gear and a fourth gear, and the second matching duplicate gear device comprises a third rotating shaft, a fifth gear and a sixth gear; the third gear and the fourth gear are coaxially arranged up and down and are coaxially and fixedly connected through the second rotating shaft; the fifth gear and the sixth gear are coaxially arranged up and down and are coaxially and fixedly connected through the third rotating shaft.
5. A dual-gear magnetic linkage assembly according to claim 4, wherein the third gear of a first mating dual gear arrangement meshes with the second gear of a dual-gear magnetic linkage, and the first gear of a dual-gear magnetic linkage meshes with the sixth gear of said second mating dual gear arrangement.
6. A dual-gear magnetic coupling device assembly according to claim 5, wherein rotation of the second rotary shaft causes the third gear and the fourth gear to rotate coaxially and in the same direction, the third gear causes the second gear to rotate, the second gear causes the first gear and the second gear to rotate coaxially and in the same direction, the first gear causes the sixth gear to rotate, and the sixth gear causes the fifth gear and the sixth gear to rotate coaxially and in the same direction.
7. A dual-gear magnetic coupling device assembly according to claim 6, wherein when the torque exceeds the attractive opposing force of the first magnet and the second magnet, the first gear and the second gear rotate relatively in a coaxial direction, and the first magnet and the second magnet are relatively separated.
8. A dual-gear magnetic coupling device assembly according to claim 7, wherein the torque is dependent upon the attractive and repulsive forces between the first and second magnets, as well as the amount of magnets, the contact surfaces of the attractive forces, the magnet diameters, and the distance drawn therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921890342.XU CN211039579U (en) | 2019-11-05 | 2019-11-05 | Magnetic connecting device for duplicate gears and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921890342.XU CN211039579U (en) | 2019-11-05 | 2019-11-05 | Magnetic connecting device for duplicate gears and assembly thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039579U true CN211039579U (en) | 2020-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921890342.XU Active CN211039579U (en) | 2019-11-05 | 2019-11-05 | Magnetic connecting device for duplicate gears and assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039579U (en) |
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2019
- 2019-11-05 CN CN201921890342.XU patent/CN211039579U/en active Active
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