CN217074699U - Middle power assembly of electric motorcycle - Google Patents
Middle power assembly of electric motorcycle Download PDFInfo
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- CN217074699U CN217074699U CN202220483711.9U CN202220483711U CN217074699U CN 217074699 U CN217074699 U CN 217074699U CN 202220483711 U CN202220483711 U CN 202220483711U CN 217074699 U CN217074699 U CN 217074699U
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- shaft
- speed reducing
- rotating shaft
- electric motorcycle
- speed reduction
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Abstract
A power assembly arranged in an electric motorcycle comprises an electric motorcycle middle-arranged rack, a motor is arranged at one end of the middle-arranged rack, a rotating shaft is arranged at the other end of the middle-arranged rack, an output shaft of the motor is connected with the rotating shaft through a transmission mechanism, the transmission mechanism comprises a transmission shell, the output shaft and the rotating shaft both extend into the transmission shell, a speed reduction chassis is arranged in the transmission shell, a speed reduction shaft through hole and a rotating shaft counter bore are formed in the speed reduction chassis, a speed reduction shaft is arranged in the speed reduction shaft through hole, a small speed reduction gear is arranged at one end of the speed reduction shaft, the rotating shaft is connected in the rotating shaft counter bore, a large speed reduction gear is arranged on the rotating shaft and meshed with the small speed reduction gear, a synchronous driven gear is arranged at the other end of the speed reduction shaft, a synchronous driving gear is arranged on the output shaft, and the synchronous driving gear is connected with the synchronous driven gear through a synchronous toothed belt.
Description
Technical Field
The utility model relates to a put power assembly in electric motorcycle car belongs to electric motorcycle car power drive field.
Background
The electric motorcycle is one kind of electric vehicle, and its driving power includes electric driving and controlling system, driving force transmission mechanism, etc. the core is to use electric driving motor to work, but its transmission mechanism is basically the same as internal combustion engine, and the transmission mechanism of internal combustion engine motorcycle adopts CVT stepless speed change structure, and its defect is that the transmission speed ratio precision is poor, the efficiency is low, especially can't transmit too high torque, otherwise the belt will skid. And a multi-stage (three-stage) speed reducing mechanism is adopted, the structure is complex, the installation is troublesome, and the development requirement of the electric motorcycle can not be met.
Disclosure of Invention
The utility model aims at overcoming prior art's shortcoming, providing one kind and adopting hold-in range reduction gearing, combining second grade gear reduction structure, make motor drive's transmission velocity ratio accurate, efficient, simple structure, put the power assembly in the electric motorcycle car that the cost is economized.
The utility model discloses put power assembly's technical scheme in electric motorcycle car is: the electric motorcycle comprises a middle-arranged rack of an electric motorcycle, wherein a motor is arranged at one end of the middle-arranged rack, a rotating shaft is arranged at the other end of the middle-arranged rack, and an output shaft of the motor is connected with the rotating shaft through a transmission mechanism.
The utility model discloses a put power assembly in electric motorcycle car, the during operation is rotated by the last synchronous driving gear of motor drive output shaft to drive synchronous driven gear through synchronous cingulum and rotate, synchronous driven gear drives the rotation of speed reduction axle, and the speed reduction axle drives the axis of rotation through the meshing of the little tooth of slowing down and the big tooth of slowing down, and the installation tire in the axis of rotation, thereby the drive electric motorcycle car traveles. This scheme adopts synchronous belt drive, and the transmission moment of torsion is high, and the velocity ratio is accurate, and difficult skidding, the rethread speed reduction of the second grade speed reduction of little tooth and the big tooth of speed reduction, make motor transmission efficient, simplify transmission structure simultaneously, save the cost, improve production efficiency.
The utility model discloses an put power assembly in electric motorcycle car, the axis of rotation counter bore in set up first bearing, the axis of rotation is connected on first bearing, has had first bearing, makes the axis of rotation rotate smoothly. The through hole of the speed reducing shaft is internally provided with a second bearing, the speed reducing shaft is arranged on the second bearing, and the second bearing enables the speed reducing shaft to rotate smoothly. The transmission shell is internally provided with a speed reducing shaft fixing frame, the other end of the speed reducing shaft is connected to the speed reducing shaft fixing frame, the speed reducing shaft is stable to assemble and free of vibration, and the service life is prolonged. The transmission shell is internally provided with a tensioning support, the tensioning support is provided with a tensioning wheel, the tensioning wheel is in contact with the synchronous toothed belt, and the tensioning wheel can adjust the tightness of the synchronous toothed belt to prevent the synchronous toothed belt from slipping.
Drawings
FIG. 1 is a schematic view of a mid-mounted power assembly of an electric motorcycle of the present invention;
FIG. 2 is a schematic perspective view of the mid-mounted power assembly of the electric motorcycle of the present invention;
figure 3 is a schematic view of the speed reduction chassis of the present invention.
Detailed Description
The utility model relates to a middle power assembly of an electric motorcycle, as shown in figures 1-3, comprising a middle frame 1 of the electric motorcycle, a motor 2 is arranged at one end of the middle frame, a rotating shaft 3 is arranged at the other end of the middle frame, an output shaft 4 of the motor 2 is connected with the rotating shaft 3 through a transmission mechanism, the transmission mechanism comprises a transmission shell 5, the output shaft 4 and the rotating shaft 3 both extend into the transmission shell 5, a decelerating chassis 6 is arranged in the transmission shell 5, a decelerating shaft through hole 7 and a rotating shaft counter bore 8 are arranged in the decelerating chassis, a decelerating shaft 9 is arranged in the decelerating shaft through hole 7, a decelerating small tooth 10 is arranged at one end of the decelerating shaft, the rotating shaft 3 is connected in the rotating shaft counter bore 8, a decelerating large tooth 11 is arranged on the rotating shaft 3, the decelerating large tooth 11 is meshed with the decelerating small tooth 10, a synchronous driven gear 13 is arranged at the other end of the decelerating shaft 9, a synchronous driving gear 14 is arranged on the output shaft 4, the synchronous drive gear 14 and the synchronous driven gear 13 are connected by a synchronous toothed belt 15. When the electric motorcycle is in work, the motor 2 drives the synchronous driving gear 14 on the output shaft 4 to rotate, the synchronous driven gear 13 is driven to rotate through the synchronous toothed belt 15, the synchronous driven gear 13 drives the speed reducing shaft 9 to rotate, the speed reducing shaft 9 drives the rotating shaft 3 to rotate through the meshing of the small speed reducing teeth 10 and the large speed reducing teeth 11, tires are mounted on the rotating shaft 3, and therefore the electric motorcycle is driven to run. This scheme adopts synchronous belt drive, and the transmission moment of torsion is high, and the velocity ratio is accurate, and difficult skidding, the rethread speed reduction of the second grade speed reduction of little tooth and the big tooth of speed reduction, make motor transmission efficient, simplify transmission structure simultaneously, save the cost, improve production efficiency. The first bearing 20 is arranged in the rotating shaft counter bore 8, the rotating shaft 3 is connected to the first bearing 20, and the first bearing is arranged to enable the rotating shaft to rotate smoothly. The through hole 7 of the speed reducing shaft is internally provided with a second bearing 21, the speed reducing shaft 9 is arranged on the second bearing 21, and the second bearing is arranged to ensure that the speed reducing shaft rotates smoothly. The transmission shell 5 is internally provided with a speed reducing shaft fixing frame 22, the other end of the speed reducing shaft 9 is connected to the speed reducing shaft fixing frame 22, the speed reducing shaft is stable in assembly and free of vibration, and the service life is prolonged. The transmission shell 5 is internally provided with a tensioning support 23, the tensioning support is provided with a tensioning wheel 24, the tensioning wheel 24 is in contact with the synchronous toothed belt 15, and the tensioning wheel can adjust the tightness of the synchronous toothed belt to prevent the synchronous toothed belt from slipping.
Claims (5)
1. A middle power assembly of an electric motorcycle comprises a middle frame (1) of the electric motorcycle, wherein one end of the middle frame is provided with a motor (2), the other end of the middle frame is provided with a rotating shaft (3), an output shaft (4) of the motor (2) is connected with the rotating shaft (3) through a transmission mechanism, the middle power assembly is characterized in that the transmission mechanism comprises a transmission shell (5), the output shaft (4) and the rotating shaft (3) both extend into the transmission shell (5), a speed reducing chassis (6) is arranged in the transmission shell (5), a speed reducing shaft through hole (7) and a rotating shaft counter bore (8) are arranged in the speed reducing chassis, a speed reducing shaft (9) is arranged in the speed reducing shaft through hole (7), a speed reducing small tooth (10) is arranged at one end of the speed reducing shaft, the rotating shaft (3) is connected in the rotating shaft counter bore (8), a speed reducing large tooth (11) is arranged on the rotating shaft (3), and the speed reducing large tooth (11) is meshed with the speed reducing small tooth (10), the other end of the speed reducing shaft (9) is provided with a synchronous driven gear (13), the output shaft (4) is provided with a synchronous driving gear (14), and the synchronous driving gear (14) is connected with the synchronous driven gear (13) through a synchronous toothed belt (15).
2. The mid-power assembly of an electric motorcycle as claimed in claim 1, wherein the first bearing (20) is disposed in the counter bore (8) of the rotating shaft, and the rotating shaft (3) is connected to the first bearing (20).
3. The mid-engine power assembly of an electric motorcycle as claimed in claim 1, wherein a second bearing (21) is provided in the through hole (7) of the speed reduction shaft, and the speed reduction shaft (9) is provided on the second bearing (21).
4. The mid-set power assembly of the electric motorcycle as claimed in claim 1, wherein a speed reducing shaft fixing frame (22) is provided in the transmission housing (5), and the other end of the speed reducing shaft (9) is connected to the speed reducing shaft fixing frame (22).
5. The mid-set power assembly of the electric motorcycle as claimed in claim 1, wherein a tension bracket (23) is provided in the transmission housing (5), a tension wheel (24) is provided on the tension bracket, and the tension wheel (24) is in contact with the timing belt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220483711.9U CN217074699U (en) | 2022-03-08 | 2022-03-08 | Middle power assembly of electric motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220483711.9U CN217074699U (en) | 2022-03-08 | 2022-03-08 | Middle power assembly of electric motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217074699U true CN217074699U (en) | 2022-07-29 |
Family
ID=82546741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220483711.9U Active CN217074699U (en) | 2022-03-08 | 2022-03-08 | Middle power assembly of electric motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217074699U (en) |
-
2022
- 2022-03-08 CN CN202220483711.9U patent/CN217074699U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Electric motorcycle mid mounted Powertrain Effective date of registration: 20230628 Granted publication date: 20220729 Pledgee: Taizhou Huangyan sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: Taizhou Huangyan Minglong Technology Co.,Ltd. Registration number: Y2023980046233 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |