CN214900524U - Coaxial line type driving motor assembly - Google Patents
Coaxial line type driving motor assembly Download PDFInfo
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- CN214900524U CN214900524U CN202121174218.0U CN202121174218U CN214900524U CN 214900524 U CN214900524 U CN 214900524U CN 202121174218 U CN202121174218 U CN 202121174218U CN 214900524 U CN214900524 U CN 214900524U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model provides a coaxial line formula driving motor assembly has got rid of traditional mechanical transmission's design constraint, with the axis of drive assembly and the output shaft sharing of differential mechanism, by drive assembly direct power drive differential mechanism realize advancing, moving back, turn to the function, it is multiple functional, reduce mechanical complex structure, and then reduce the cooperation noise that the part was brought more, make transmission system obtain simplifying, also can reduce high accuracy spare part cost, the energy saving, reduce the volume, occupation space diminishes, the adaptability is better; and this application adopts the form that external rotor motor and differential mechanism combine to drive vehicle using motor, and the motor rotational speed of this kind of form is low, and drive mechanism is simple, and small in noise, simple process, with low costs, non-maintaining, energy saving and emission reduction, and the axis only uses as the connecting axle of drive wheel this moment, does not have the machinery constraint on the axis, laborsaving during the drive, and steady safety after the whole cooperation is ridden safely and comfortablely.
Description
Technical Field
The utility model relates to a moped drive technical field especially relates to with axle line formula driving motor assembly.
Background
At present, an electric moped is in a trial-manufacturing stage, a special motor is not provided, only a forward and backward function can be realized if the electric moped is driven by only the motor, the function is single, if the functions of speed reduction, steering and the like are realized, a gear needs to be installed on an intermediate shaft of the motor, and the gear is meshed with a main speed reduction gear on a differential mechanism for assembly and use, so that the problems of large size, large occupied space, more parts, complex mechanical structure, large part matching noise, high cost of high-precision parts, resource waste, energy conservation and emission reduction are solved, the electric moped can be only assembled and used in the electric moped with large radial assembly space, but cannot be assembled and used in the electric moped with small radial assembly space, and the adaptability is poor.
In addition, the existing driving motors for the moped all use the motors in the form of the inner rotor, the motors are high in rotating speed, complex in transmission mechanism, high in required precision, complex in process and high in production cost, and output requirements cause large size, heavy and high maintenance cost.
Disclosure of Invention
According to the technical problem, the utility model provides a coaxial line type driving motor assembly, which is characterized in that the coaxial line type driving motor assembly comprises a driving unit and a differential mechanism, wherein the differential mechanism is arranged at the right end of the driving unit;
the driving unit comprises a driving assembly, a shell and a planetary mechanism, wherein the driving assembly and the planetary mechanism are installed in the shell, and the planetary mechanism is connected to the right side of the driving assembly;
the driving assembly comprises a stator, a rotor and a middle shaft, the rotor is sleeved outside the stator, the middle shaft is arranged in the center of the stator, and two ends of the middle shaft extend to the outer side of the shell;
the planetary mechanism includes support, planet wheel, ring gear, sun gear, the ring gear is fixed in the shell, the ring gear inner gearing is connected with the planet wheel, the planet wheel has n, and n the planet wheel is along ring gear circumference evenly distributed, and the support is installed on n planet wheel right side, the support suit is epaxial in, the sun gear is installed at support left end center, the sun gear suit is outside the axis, the sun gear is connected with n planet wheel meshing, the outer tip of sun gear is crossed the planet wheel and is connected with the rotor center.
The differential mechanism comprises a differential shell, umbrella-shaped teeth, a connecting shaft, planet gears and a differential end cover, wherein the differential end cover is installed at the right end of the differential shell, a threaded structure is arranged outside the port of the differential end cover, and a rotating and matching screw hole is circumferentially formed in one side, close to the driving unit, of the differential shell; the differential mechanism is characterized in that a connecting shaft is longitudinally arranged in the differential shell, planetary gears are symmetrically arranged at the upper end and the lower end of the connecting shaft, umbrella-shaped teeth are connected to the planetary gears in a meshed mode, two umbrella-shaped teeth are symmetrically arranged on the left side and the right side in the differential shell respectively, the umbrella-shaped teeth on the left side are arranged on the right end portion of the middle shaft, the umbrella-shaped teeth on the left side are connected with the right end portion of the middle shaft through splines, and the outer end portions of the umbrella-shaped teeth on the right side penetrate through a differential end cover and are connected with a fixed shaft.
The number of the planet gears is 3, the shell comprises a shell body and an end cover, and the end cover is arranged at the left end of the shell body; the stator is fixedly connected with the end cover. The right end of the bracket extends to the outer side of the shell and is clamped and connected with a differential shell of the differential mechanism; the driving component is an outer rotor motor.
The utility model has the advantages that: the utility model discloses break away from traditional mechanical transmission's design restraint, with the output of drive assembly and the coaxial sharing of differential mechanism's output shaft, realize advancing by the direct power drive differential mechanism of drive assembly, move back, turn to the function, it is multiple functional, reduce mechanical complex structure, reduce energy loss, the cooperation noise that the part was brought more also can be reduced simultaneously, make transmission system obtain simplifying, also can reduce high accuracy spare part cost, the energy saving, reduce the volume, occupation space diminishes, whole radial dimension is less, not only can assemble and use in the great electric motor car of radial assembly space, also can assemble and use in the less electric motor car of radial assembly space, adaptability is better.
The moped is driven by combining the outer rotor motor and the differential mechanism, the motor is low in rotating speed, simple in transmission mechanism, low in noise, simple in process, low in cost, free of maintenance, energy-saving and emission-reducing, the process function cost of the current product is optimized, energy conservation and environmental protection are facilitated, the development of a large health industry is facilitated, and the moped is stable and safe after being integrally matched, and safe and comfortable to ride; after the outer rotor motor is adopted, the outer rotor of the outer rotor motor is connected with the sun gear of the planetary mechanism, the differential mechanism is driven to rotate through the support of the planetary mechanism, the bevel gear of the differential mechanism is connected through the spline to enable the middle shaft to rotate, the middle shaft at the moment is only used as a connecting shaft of the driving wheel, mechanical constraint is not generated on the middle shaft, and labor is saved during driving.
In addition, the port of the differential end cover is externally provided with a thread structure, the flywheel can be installed at the thread structure of the differential end cover in a thread mode, the differential end cover can be used as a driving motor of the electric bicycle, a rotating and matching screw hole is formed in the circumferential direction, close to one side of the driving unit, of the differential shell, a brake device can be installed at the assembling screw hole of the differential shell, the differential end cover has a brake function, and the application range is wide.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic view of the external structure of the differential mechanism of the present invention;
FIG. 4 is a schematic structural view of the differential housing of the present invention near the driving unit;
fig. 5 is a schematic structural view of the present invention in use.
As shown in the figure: 1. an end cap; 2. a stator; 3. a rotor; 4. a ring gear; 5. a planet wheel; 6. a support; 7. a middle shaft; 8. a shell, 9, a differential shell; 9-1, assembling screw holes; 10. umbrella-shaped teeth; 11. a connecting shaft; 12. a planet gear; 13. a differential end cover; 14. a sun gear; 15. a drive unit; 16. a bearing; 17. a fixed mount; 18. lifting lugs; 19. a chassis; 20. a drive wheel; 21. and fixing the shaft.
Detailed Description
Example 1
The coaxial line type driving motor assembly is characterized by comprising a driving unit 15 and a differential mechanism, wherein the differential mechanism is installed at the right end of the driving unit 15, the driving unit 15 comprises a driving component, a shell and a planetary mechanism, the driving component and the planetary mechanism are installed in the shell, and the planetary mechanism is connected to the right side of the driving component;
the driving assembly comprises a stator 2, a rotor 3 and a middle shaft 7, the rotor 3 is sleeved outside the stator 2, the middle shaft 7 is installed in the center of the stator 2, and two ends of the middle shaft 7 extend to the outer side of the shell;
the planetary mechanism comprises a support 6, planetary wheels 5 and a gear ring 4, the gear ring 4 is fixed in the shell, the planetary wheels 5 are connected in the gear ring 4 in an inner meshing manner, the number of the planetary wheels 5 is n, the n planetary wheels 5 are uniformly distributed along the circumferential direction of the gear ring 4, the inner sides of the n planetary wheels 5 are connected with the support 6 in an meshing manner, and the support 6 is sleeved on a middle shaft 7; a sun wheel 14 is installed in the center of the left end of the support 6, the sun wheel 14 is sleeved outside the middle shaft 7, the sun wheel 14 is meshed with the n planet wheels 5, and the outer end of the sun wheel 14 passes over the planet wheels 5 to be connected with the center of the rotor 3.
The differential mechanism comprises a differential shell 9, bevel gears 10, a connecting shaft 11, planet gears 12 and a differential end cover 13, wherein the differential end cover 13 is installed at the right end of the differential shell 9, the connecting shaft 11 is longitudinally installed in the differential shell 9, the planet gears 12 are symmetrically installed at the upper end and the lower end of the connecting shaft 11, the bevel gears 10 are in meshing connection with the planet gears 12, two bevel gears 10 are symmetrically arranged on the left side and the right side in the differential shell 9 respectively, the left bevel gear 10 is installed at the right end of the middle shaft 7, the left bevel gear 10 is connected with the right end of the middle shaft 7 through a spline, and the outer end part of the right bevel gear 10 penetrates through the differential end cover 13 and is connected with a fixed shaft 21.
The right end of the bracket 6 extends to the outer side of the shell and is clamped and connected with a differential shell 9 of the differential mechanism;
the number of the planet wheels 5 is 3, the shell comprises a shell 8 and an end cover 1, and the end cover 1 is arranged at the left end of the shell 8; the stator 2 is fixedly connected with the end cover 1;
the driving component is an outer rotor motor;
a thread structure is arranged outside the port of the differential end cover 13, and a rotating and matching screw hole 9-1 is circumferentially arranged on one side of the differential shell 9 close to the driving unit 15.
Example 2
When the utility model is used, the end parts of the fixed shafts 21 arranged at the outer end part of the middle shaft 7 and the umbrella-shaped teeth 10 at the right end are respectively connected with the driving wheel 20, then the bearings 16 are sleeved on the fixed shafts 21 arranged at the outer part of the shell 8 and the umbrella-shaped teeth 10 at the right end of the middle shaft 7, the fixed frames 17 with the lifting lugs 18 are arranged outside the bearings 16, then the fixed frames 17 with the lifting lugs 18 are sleeved outside the shell 8, then the fixed frames 17 are fixed on the chassis 19 through the lifting lugs 18, and at the moment, the driving wheel 20 carried by the driving unit 15 and the differential mechanism is arranged at the bottom of the vehicle body;
then the motor works, the rotor 3 rotates around the stator 2, and drives the planet gear 5 to rotate through the sun gear 14, the planet gear 5 rotates and drives the support 6 to rotate, the support 6 drives the differential shell 9 to rotate, then the differential shell 9 is connected with the planet gear 12 through a connecting shaft to drive the umbrella-shaped teeth 10 to rotate, and then the driving wheel 20 connected with the end of the fixed shaft 21 arranged at the outer end of the middle shaft 7 and the umbrella-shaped teeth 10 at the right end rotates, and at the moment, the moped can move forward or backward;
when the steering is carried out, the steering function is realized by utilizing the differential operation of the two bevel gears 10 and the planet gears 12, and meanwhile, the planet gears 5 rotate along with the support 6 to realize the deceleration function;
in addition, a flywheel can be installed at the threaded structure of the differential end cover 13 in a threaded mode, the flywheel can be used as a driving motor of the electric bicycle, a brake device can be installed at the position of the assembling screw hole 9-1 of the differential shell, and the flywheel has a brake function.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The coaxial line type driving motor assembly is characterized by comprising a driving unit and a differential mechanism, wherein the differential mechanism is arranged at the right end of the driving unit;
the driving unit comprises a driving assembly, a shell and a planetary mechanism, wherein the driving assembly and the planetary mechanism are installed in the shell, and the planetary mechanism is connected to the right side of the driving assembly.
2. The coaxial line drive motor assembly of claim 1, wherein the drive assembly comprises a stator, a rotor, a center shaft, the rotor is sleeved outside the stator, the center shaft is installed at the center of the stator, and two ends of the center shaft extend to the outer side of the housing;
the planetary mechanism includes support, planet wheel, ring gear, sun gear, the ring gear is fixed in the shell, the ring gear inner gearing is connected with the planet wheel, the planet wheel has n, and n the planet wheel is along ring gear circumference evenly distributed, and the support is installed on n planet wheel right side, the support suit is epaxial in, the sun gear is installed at support left end center, the sun gear suit is outside the axis, the sun gear is connected with n planet wheel meshing, the outer tip of sun gear is crossed the planet wheel and is connected with the rotor center.
3. The coaxial line type driving motor assembly according to claim 1, wherein the differential mechanism comprises a differential housing, two bevel-shaped teeth, a connecting shaft, planet gears and a differential end cover, the differential end cover is mounted at the right end of the differential housing, the connecting shaft is longitudinally mounted in the differential housing, the planet gears are symmetrically mounted at the upper end and the lower end of the connecting shaft, the bevel-shaped teeth are in meshing connection with the planet gears, the two bevel-shaped teeth are respectively arranged at the left side and the right side of the connecting shaft in a bilateral symmetry manner, the bevel-shaped teeth at the left side are mounted at the right side output end of the driving unit, and the outer end parts of the bevel-shaped teeth at the right side penetrate through the differential end cover.
4. The coaxial line drive motor assembly of claim 2, wherein there are 3 planet gears.
5. The coaxial line drive motor assembly of claim 2, wherein the housing comprises a housing and an end cap, the end cap is mounted to a left end of the housing, and the stator is fixedly connected to the end cap.
6. The coaxial line drive motor assembly of claim 1, wherein the drive component is an external rotor motor.
7. The coaxial line drive motor assembly according to claim 3, wherein a threaded structure is provided outside the port of the differential end cap, and a rotation screw hole is provided circumferentially on one side of the differential housing close to the drive unit.
8. The coaxial line drive motor assembly of claim 2, wherein the right end of the bracket extends to the outside of the housing and is engaged with the differential mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174218.0U CN214900524U (en) | 2021-05-28 | 2021-05-28 | Coaxial line type driving motor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121174218.0U CN214900524U (en) | 2021-05-28 | 2021-05-28 | Coaxial line type driving motor assembly |
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| Publication Number | Publication Date |
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| CN214900524U true CN214900524U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121174218.0U Active CN214900524U (en) | 2021-05-28 | 2021-05-28 | Coaxial line type driving motor assembly |
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| CN (1) | CN214900524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537053A (en) * | 2024-01-10 | 2024-02-09 | 常州市佳博机械制造有限公司 | Differential output mechanism |
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2021
- 2021-05-28 CN CN202121174218.0U patent/CN214900524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117537053A (en) * | 2024-01-10 | 2024-02-09 | 常州市佳博机械制造有限公司 | Differential output mechanism |
| CN117537053B (en) * | 2024-01-10 | 2024-04-19 | 常州市佳博机械制造有限公司 | Differential output mechanism |
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