CN218112337U - Single electromechanical bridge - Google Patents
Single electromechanical bridge Download PDFInfo
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- CN218112337U CN218112337U CN202222139587.7U CN202222139587U CN218112337U CN 218112337 U CN218112337 U CN 218112337U CN 202222139587 U CN202222139587 U CN 202222139587U CN 218112337 U CN218112337 U CN 218112337U
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Abstract
There is provided a single electro-mechanical bridge comprising: a motor having a motor shaft; the primary driving gear is connected with the motor shaft; the first parallel shaft is sequentially connected with a first primary driven gear, a first secondary driving gearwheel and a first secondary driving pinion; the second parallel shaft is sequentially connected with a second primary driven gear, a second secondary driving gearwheel and a second secondary driving pinion; the intermediate shaft is fixedly connected with a synchronous gear and a planet row, and is sleeved with a secondary driven large gear and a secondary driven small gear in a relatively rotatable manner; a synchronizing sleeve switchable between a first position and a second position; and the differential is connected with the first output half shaft and the second output half shaft and is connected with the planet carrier of the planet row. The single-motor coaxial transmission is adopted, the volume is small, the weight is light, and the space utilization rate is high.
Description
Technical Field
The utility model relates to a new energy automobile spare part field especially relates to a single electromechanical bridge that drives.
Background
The development of new energy automobiles is more and more emphasized by the nation. The electric drive axle is an important core component of a new energy automobile, and mainly integrates a motor, a controller, a speed change mechanism and a differential mechanism into an electric drive axle assembly formed on an axle. Through the integrated design, can further reduce the volume weight of assembly on the one hand, improve power, volume, the moment of torsion density of system, on the other hand promotes the NVH level of electric drive assembly through integrating with the matching that becomes more meticulous, and the serialization of being convenient for, mass production improve the commonality of product and reduce development and manufacturing cost. However, the combination of the motor and the transmission mechanism, the differential mechanism, etc. alone results in the electric drive axle being too large in size, weight, complex in structure and low in transmission efficiency.
Therefore, there is a need to develop a single electro-mechanical bridge to solve one or more of the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the at least one technical problem, according to the utility model discloses an aspect provides a single electromechanical bridge that drives, its characterized in that includes:
a motor having a motor shaft;
the primary driving gear is connected with the motor shaft;
the first parallel shaft is sequentially connected with a first primary driven gear, a first secondary driving gearwheel and a first secondary driving pinion;
the second parallel shaft is sequentially connected with a second primary driven gear, a second secondary driving gearwheel and a second secondary driving pinion;
the intermediate shaft is fixedly connected with a synchronous gear and a planet row, and is sleeved with a secondary driven large gear and a secondary driven small gear in a relatively rotatable manner;
a synchronizing sleeve switchable between a first position and a second position; and
the differential is connected with a first output half shaft and a second output half shaft and is connected with a planet carrier of the planet row;
wherein, one-level driving gear meshes with first primary driven gear and second one-level driven gear respectively, and the driven pinion of second grade meshes with first second grade initiative gear wheel and second grade initiative gear wheel respectively, and the driven gear wheel of second grade meshes with first second grade initiative pinion and second grade initiative pinion respectively, joint synchronizing gear and second grade driven pinion when synchronous tooth cover is located the first position, synchronous tooth cover with joint synchronizing gear and the driven gear wheel of second grade when being located the second position.
According to a further aspect of the invention, the motor shaft, the intermediate shaft and the differential are arranged in sequence and coaxial with each other.
According to the utility model discloses in another aspect, first output semi-axis passes behind the center of jackshaft, motor shaft and motor in proper order and wheel connection.
According to the utility model discloses in another aspect, the driven gear wheel of second grade and the driven pinion of second grade are located synchronous gear's both sides.
According to the utility model discloses in another aspect, the planet row includes sun gear, planet wheel, ring gear and planet carrier, and the ring gear is connected in the box.
According to yet another aspect of the invention, the single electro-mechanical bridge has a symmetrical configuration about the first output half shaft.
According to another aspect of the present invention, the second stage driven pinion is provided with a first engaging tooth.
According to the utility model discloses still another aspect, the driven gear wheel of second grade is provided with the second and combines the tooth.
According to the utility model discloses in another aspect, this synchronous tooth cover still can switch to the intermediate position, and this synchronous tooth cover breaks away from with the passive pinion of second grade and the passive gear wheel of second grade when being located the intermediate position.
According to yet another aspect of the present invention, the single electro-mechanical axle has a first forward gear, a second forward gear, a neutral gear, and a reverse gear.
The utility model discloses can obtain following one or more technological effect:
1. single-motor coaxial transmission is adopted, the size is small, the weight is light, and the space utilization rate is high;
2. the double-parallel-shaft compound transmission is adopted, so that the requirement on the size of the gear can be reduced while the requirement on large torque can be transmitted.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural view of a single electromechanical bridge according to a preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of the power transmission of the first forward gear of the single electro-mechanical axle according to a preferred embodiment of the present invention.
Fig. 3 is a schematic diagram of the second forward gear power transmission of a single electro-mechanical axle in accordance with a preferred embodiment of the present invention.
Detailed Description
The best mode of the present invention will be described in detail with reference to the accompanying drawings, wherein the detailed description is to be regarded as illustrative in nature and not as restrictive, and various changes and modifications may be made without departing from the spirit and scope of the present invention.
Example 1
According to a preferred embodiment of the present invention, referring to fig. 1, there is provided a single electro-mechanical driven bridge, characterized by comprising:
a motor 10 having a motor shaft 11;
the primary driving gear 12 is connected with the motor 11 through a shaft;
the first parallel shaft 16 is sequentially connected with a first primary driven gear 13, a first secondary driving gearwheel 14 and a first secondary driving pinion 15;
a second parallel shaft 20 which is connected with a second primary driven gear 17, a second secondary driving gearwheel 18 and a second secondary driving pinion 19 in sequence;
the intermediate shaft 24 is fixedly connected with the synchronous gear 22 and the planet row, and is sleeved with a secondary driven pinion 21 and a secondary driven bull gear 23 in a relatively rotatable manner;
a synchronizing sleeve C1 switchable between a first position and a second position; and
a differential 29 to which a first output half shaft 31 and a second output half shaft 31 are connected and which is connected to the carrier 28 of the planetary row;
wherein, one-level driving gear 12 meshes with first primary driven gear 13 and second one-level driven gear 17 respectively, second grade driven pinion 21 meshes with first second grade initiative gear wheel 14 and second grade initiative gear wheel 18 respectively, second grade driven pinion 23 meshes with first second grade initiative pinion 15 and second grade initiative pinion 19 respectively, joint synchronizing gear 22 and second grade driven pinion 21 when synchronous tooth cover C1 is located the first position, synchronous tooth cover C1 with joint synchronizing gear 22 and second grade driven pinion 23 when being located the second position.
According to a further preferred embodiment of the present invention, the motor shaft, the intermediate shaft and the differential are arranged in sequence and coaxial with each other.
According to another preferred embodiment of the present invention, the first output half shaft is connected to the wheel after passing through the center of the intermediate shaft, the motor shaft, and the motor in this order.
According to a further preferred embodiment of the present invention, the secondary driven gearwheel 23 and the secondary driven pinion 21 are located on both sides of the synchronizing gear 22.
According to a further preferred embodiment of the invention, the planetary gear set comprises a sun gear 25, planet gears 26, a ring gear 27 and a planet carrier 28, the ring gear 27 being connected to the housing.
According to a further preferred embodiment of the invention, the single electro-mechanical bridge has a symmetrical configuration with respect to the first output half shaft 30.
According to a further preferred embodiment of the invention, the secondary driven pinion is provided with a first coupling tooth.
According to a further preferred embodiment of the present invention, the secondary driven gearwheel is provided with second engaging teeth.
According to the utility model discloses still another preferred embodiment, this synchronous tooth cover still can switch to the intermediate position, and this synchronous tooth cover breaks away from with the passive pinion of second grade and the passive gear wheel of second grade when being located the intermediate position.
According to a further preferred embodiment of the present invention, the single electro-mechanical drive axle has a first forward gear, a second forward gear, a neutral gear and a reverse gear.
According to another preferred embodiment of the present invention, there is also provided a single electromechanical axle, wherein the long half shaft 31 passes through the motor 10 and the motor shaft 11 from the middle, and is arranged in a sleeve shaft manner;
the primary driving gear 12 is connected to the motor 10 through a motor shaft 11;
a primary driven gear 13, a secondary driving gearwheel 14 and a secondary driving pinion 15 are connected on a parallel shaft 16;
the primary driven gear 17, the secondary driving gearwheel 18 and the secondary driving gearwheel 19 are connected on a parallel shaft 20;
the synchronous gear 22 and the sun gear 25 are connected to the intermediate shaft 24;
the synchronous gear sleeve C1 is connected with the second sun gear 26;
the planet carrier 28 is connected with a differential 29;
the ring gear 27 is fixed to the case.
The working principle of the utility model is as follows.
As shown in fig. 2, the first forward gear power transmission process is:
the first-stage driving gear 12 is connected to the motor 10 through a motor shaft 11, the first-stage driving gear 12 is meshed with the first-stage driven gears 13 and 17 at the same time, power is transmitted to the first-stage driven gears 13 and 17 from the motor 10, the second-stage driven gear 13, the second-stage driving gear 14 and the second-stage driving pinion 15 are connected to the parallel shaft 16, the first-stage driven gear 17, the second-stage driving gear 18 and the second-stage driving gear 19 are connected to the parallel shaft 20, and the power is continuously transmitted to the second-stage driving pinions 15 and 19 to achieve first-stage speed reduction.
The synchronous gear sleeve C1 is shifted to the right side, so that the synchronous gear 22 and the secondary driven large gear 23 are connected into a whole, the synchronous gear 22 and the sun gear 25 are connected onto the intermediate shaft 24, the secondary driving small gears 15 and 19 are simultaneously meshed with the secondary driven large gear 23, power is transmitted to the sun gear 25 through the secondary driven large gear 23, the synchronous gear 22 and the intermediate shaft 24, and secondary speed reduction is realized.
The carrier 28 is connected to a differential 29, and the power sun gear 25 is transmitted to the differential 29 via the carrier 28, achieving a third reduction.
After being distributed by the differential, the power is transmitted to the wheels on two sides through the long half shaft 30 and the short half shaft 31 respectively.
As shown in fig. 3, the second forward speed power transmission process is:
the first-stage driving gear 12 is connected to the motor 10 through a motor shaft 11, the first-stage driving gear 12 is meshed with the first-stage driven gears 13 and 17 at the same time, power is transmitted to the first-stage driven gears 13 and 17 through the motor 10, the other-stage driven gear 13, the second-stage driving gear 14 and the second-stage driving pinion 15 are connected to the parallel shaft 16, the first-stage driven gear 17, the second-stage driving gear 18 and the second-stage driving gear 19 are connected to the parallel shaft 20, and power is continuously transmitted to the second-stage driving pinions 15 and 19 to achieve first-stage speed reduction.
The synchronous gear sleeve C1 is shifted to the left side, so that the secondary driven pinion 21 and the synchronous gear 22 are connected into a whole, the synchronous gear 22 and the sun gear 25 are connected onto the intermediate shaft 24, the secondary driving pinions 15 and 19 are simultaneously meshed with the secondary driven gearwheel 23, and power is transmitted to the sun gear 25 through the secondary driven pinion 21, the synchronous gear 22 and the intermediate shaft 24, so that secondary speed reduction is realized.
The carrier 28 is connected to a differential 29, and the power sun gear 25 is transmitted to the differential 29 via the carrier 28, achieving a third reduction.
After being distributed by the differential, the power is transmitted to the wheels on two sides through the long half shaft 30 and the short half shaft 31 respectively.
The power transmission process of the neutral gear is as follows:
the synchronous gear sleeve C1 is shifted to the middle, so that the power can be interrupted between the secondary driven gear and the intermediate shaft, and neutral gear is realized.
The power transmission process of the reverse gear is as follows:
the motor is controlled to rotate reversely, the synchronous gear sleeve C1 is shifted to the right side, the power transmission process is consistent with the first forward gear, the output steering is opposite, and reverse gear is achieved.
The utility model discloses can obtain following one or more technological effect:
1. single-motor coaxial transmission is adopted, the size is small, the weight is light, and the space utilization rate is high;
2. the double-parallel-shaft compound transmission is adopted, so that the requirement on the size of the gear can be reduced while the requirement on large torque can be transmitted.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A single electromechanical bridge, comprising:
a motor having a motor shaft;
the primary driving gear is connected with the motor shaft;
the first parallel shaft is sequentially connected with a first primary driven gear, a first secondary driving gearwheel and a first secondary driving pinion;
the second parallel shaft is sequentially connected with a second primary driven gear, a second secondary driving gearwheel and a second secondary driving pinion;
the intermediate shaft is fixedly connected with a synchronous gear and a planet row, and is sleeved with a secondary driven large gear and a secondary driven small gear in a relative rotation manner;
a synchronizing sleeve switchable between a first position and a second position; and
the differential is connected with a first output half shaft and a second output half shaft and is connected with a planet carrier of the planet row;
wherein, one-level driving gear respectively with first primary driven gear and the meshing of second one-level driven gear, second grade driven pinion respectively with first second grade initiative gear wheel and the meshing of second grade initiative gear wheel, the meshing of second grade driven gear wheel respectively with first second grade initiative pinion and the meshing of second grade initiative pinion, joint synchronizing gear and second grade driven pinion when synchronous gear sleeve is located the first position, synchronous gear sleeve is located the second position with joint synchronizing gear and second grade driven gear wheel.
2. The single electromechanical drive axle according to claim 1, wherein said motor, motor shaft, intermediate shaft and differential are arranged in sequence and coaxial with each other.
3. The single electro-mechanical axle as defined in claim 2 wherein said first output axle shaft passes through the intermediate shaft, the motor shaft, and the center of the motor in sequence before being connected to the wheels.
4. The single electro-mechanical axle as defined in claim 2 wherein said secondary driven bull gear and said secondary driven pinion gear are located on opposite sides of said synchronizing gear.
5. The single electro-mechanical axle of any one of claims 1-4 wherein the planet row includes a sun gear, planet gears, a ring gear, and a planet carrier, the ring gear being connected to the housing.
6. The single electro-mechanical bridge as set forth in claim 5, wherein the single electro-mechanical bridge has a symmetrical configuration about the first output axle shaft.
7. The single electromechanical bridge of claim 6, wherein the secondary driven pinion gear is provided with a first engaging tooth.
8. The single electro-mechanical axle as defined in claim 7 wherein the secondary driven bull gear is provided with second engaging teeth.
9. The single electromechanical axle of claim 8 wherein the synchronizing sleeve is further switchable to an intermediate position wherein the synchronizing sleeve is disengaged from the secondary driven pinion gear and the secondary driven bull gear.
10. The single-motor driven axle according to claim 9 having a first forward gear, a second forward gear, a neutral gear, and a reverse gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222139587.7U CN218112337U (en) | 2022-08-15 | 2022-08-15 | Single electromechanical bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222139587.7U CN218112337U (en) | 2022-08-15 | 2022-08-15 | Single electromechanical bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218112337U true CN218112337U (en) | 2022-12-23 |
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ID=84523695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222139587.7U Active CN218112337U (en) | 2022-08-15 | 2022-08-15 | Single electromechanical bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218112337U (en) |
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2022
- 2022-08-15 CN CN202222139587.7U patent/CN218112337U/en active Active
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