CN221023127U - Double-motor low-cost compact electric drive axle - Google Patents
Double-motor low-cost compact electric drive axle Download PDFInfo
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- CN221023127U CN221023127U CN202323181679.2U CN202323181679U CN221023127U CN 221023127 U CN221023127 U CN 221023127U CN 202323181679 U CN202323181679 U CN 202323181679U CN 221023127 U CN221023127 U CN 221023127U
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Abstract
The utility model relates to a double-motor low-cost compact electric drive axle, which comprises a first motor, a second motor, a reduction gear set, an output gear set and a differential assembly, wherein the differential assembly and the first motor and the second motor are both positioned on the same side of the reduction gear set; the utility model adopts a reasonable arrangement structure, shortens the axial dimension of the electric drive axle, makes the structure more compact, realizes the common parameter design of the input gear sets of the two motors, can realize modularized processing, and reduces the processing cost.
Description
Technical Field
The utility model relates to the technical field of new energy automobile transmission, in particular to a double-motor low-cost compact electric drive axle.
Background
The development of new energy commercial automobiles is increasingly emphasized by the nation, the market competition is increasingly strong, and products with higher power density and higher cost performance are required under the market competition. The traditional double-motor external electric drive axle structure mostly keeps bevel gear transmission, and the structural redundancy is large in arrangement volume and low in power density.
The double-motor three-speed-ratio compact electric drive axle system provided by Chinese patent with publication number of CN216545695U comprises a first input shaft connected with a first motor; a first gear and a second gear; a sliding sleeve; a first parallel axis; third to fifth gears; an intermediate shaft; a planet row; the second input shaft is connected with a second motor; a second parallel shaft arranged in parallel with the second input shaft; a seventh gear and an eighth gear; and a differential. The large-speed gear is formed in a limited space through the combined work of the paired gears and the planetary rows, so that the requirement of the whole vehicle on dynamic property is met, and meanwhile, the small-speed gear can also meet the requirement of the whole vehicle on high vehicle speed.
However, the electric drive axle system still has some defects, the differential mechanism and the two motors are respectively arranged on two sides of the paired gears and the planetary rows, the axial length is larger, the structure is not compact enough, the first input shaft of the first motor is provided with the two gears and the sliding sleeve, the first input shaft is long in length, the installation space is large, the structure is not compact enough, in addition, the second input shaft of the second motor is provided with only one gear, the structure is different, the modularized production cannot be realized, and the processing cost is high.
Accordingly, the present utility model proposes a dual motor low cost compact electric drive axle that solves the above-mentioned problems.
Disclosure of utility model
The utility model aims to solve the technical problem of providing a double-motor low-cost compact electric drive axle, which adopts a reasonable arrangement structure, shortens the axial dimension of the electric drive axle, ensures that the structure is more compact and reduces the processing cost.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a low-cost compact electric drive axle of dual motor, its innovation point lies in: comprising
The first motor is provided with a first input shaft, and a first gear is connected to the first input shaft;
the second motor is provided with a second input shaft, and a tenth gear is connected to the second input shaft;
The speed reduction gear set comprises a first intermediate shaft and a second intermediate shaft, the first intermediate shaft is connected with a second gear and a third gear, the second gear is meshed with the first gear, a seventh gear and an eighth gear are rotatably sleeved on the second intermediate shaft, the speed reduction gear set is connected with a gear shifter and a ninth gear, the ninth gear is meshed with the tenth gear, and the gear shifter is positioned between the seventh gear and the eighth gear and can be selectively combined with the seventh gear or the eighth gear or separated from the seventh gear and the eighth gear;
The output gear set comprises a hollow shaft, a fourth gear, a fifth gear and a sixth gear are connected to the hollow shaft, the fourth gear is meshed with the seventh gear, the fifth gear is meshed with the third gear, and the sixth gear is meshed with the eighth gear;
The differential mechanism assembly is positioned on the same side of the speed reduction gear set as the first motor and the second motor, the differential mechanism assembly is positioned between the first motor and the second motor, the differential mechanism assembly comprises a planetary row and a differential mechanism element, a sun gear of the planetary row is connected to a hollow shaft, the differential mechanism element is provided with a first output half shaft and a second output half shaft, the first output half shaft is rotatably arranged in the hollow shaft in a penetrating mode, and a shell of the differential mechanism element is used as a planet carrier to be connected with planet gears of the planetary row.
Further, the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are parallel to each other.
Further, the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are arranged in a plane.
Further, the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are arranged in a V shape.
Further, the first output half shaft and the second output half shaft are coaxially arranged, the extending directions are opposite, and the first output half shaft and the hollow shaft are coaxially arranged.
Further, the first gear, the second gear, the ninth gear and the tenth gear are in the same plane.
The utility model has the advantages that:
The electric drive axle has the double motors, the double motors can work together or can work independently, the power requirement and the economical requirement are met, the differential mechanism assembly, the first motor and the second motor are arranged on the same side of the reduction gear set, the space between the first motor and the second motor is fully utilized for placing the differential mechanism assembly, the axial size of the electric drive axle is effectively shortened, the structure is more compact, in addition, the input shafts of the first motor and the second motor are connected with only one gear, the input gear sets of the two motors are designed in a common parameter mode, modular processing can be performed, and the processing cost of cutters and the like is reduced.
According to the utility model, the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are parallel to each other and are arranged in a plane, so that the height of the electric drive axle can be effectively reduced, and the electric drive axle is flat.
According to the utility model, the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are parallel to each other and are arranged in a V shape, so that the radial size of the electric drive axle can be effectively reduced, and the structure of the electric drive axle is more compact.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of a dual motor low cost compact electric drive axle of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
A dual-motor low-cost compact electric drive axle as shown in fig. 1 includes a first motor M1, a second motor M2, a reduction gear set, an output gear set, and a differential assembly.
The first motor M1 has a first input shaft 001, a first gear 11A is connected to the first input shaft 001, and the first gear 11A is located on the left side of the first motor M1;
The second motor M2 is arranged side by side with the first motor M1, the second motor M2 is provided with a second input shaft 005, a tenth gear 21A is connected to the second input shaft 005, and the tenth gear 21A is positioned at the left side of the second motor M2;
The reduction gear set comprises a first intermediate shaft 002 and a second intermediate shaft 004, the first intermediate shaft 002 and the second intermediate shaft 004 are respectively positioned between the first input shaft 001 and the second input shaft 005, the first intermediate shaft 002 is connected with a second gear 11B and a third gear 12A, the third gear 12A is positioned at the left side of the second gear 11B, the second gear 11B is meshed with the first gear 11A, a seventh gear 22A and an eighth gear 23A are rotatably sleeved on the second intermediate shaft 004, a gear shifter and a ninth gear 21B are connected, the seventh gear 22A, the gear shifter, the eighth gear 23A and the ninth gear 21B are sequentially arranged from left to right, the ninth gear 21B is meshed with the tenth gear 21A, the gear shifter can be selectively combined with the seventh gear 22A or the eighth gear 23A or separated from the seventh gear 22A, and the eighth gear 23A, and the first gear 11A, the second gear 11B, the ninth gear 21B and the tenth gear 21A are positioned on the same plane;
The output gear set comprises a hollow shaft 003, the hollow shaft 003 is positioned between a first intermediate shaft 002 and a second intermediate shaft 004, a fourth gear 22B, a fifth gear 12B and a sixth gear 23B are sequentially connected on the hollow shaft 003 from left to right, the fourth gear 22B is meshed with a seventh gear 22A, the fifth gear 12B is meshed with a third gear 12A, and the sixth gear 23B is meshed with an eighth gear 23A;
The differential mechanism assembly is located on the same side of the reduction gear set with the first motor M1 and the second motor M2, the differential mechanism assembly is located between the first motor M1 and the second motor M2, the differential mechanism assembly comprises a planetary row and a differential mechanism element X4, the planetary row comprises a sun gear X1, a planetary wheel X2, a gear ring X3 and a planetary frame X5, the sun gear X1 is connected to a hollow shaft 003, the planetary wheel X2 is fitted with the sun gear X1, the gear ring X3 is meshed with the planetary wheel X2, the differential mechanism element X4 is located on the right side of the planetary row, the differential mechanism element X4 is provided with a first output half shaft 006 and a second output half shaft 007, the first output half shaft 006 and the second output half shaft 007 are coaxially arranged, and extend in opposite directions, the first output half shaft 006 rotates to penetrate through the hollow shaft 003 and is coaxially arranged with the hollow shaft 003, and the housing of the differential mechanism element X4 and the planetary frame X5 are the same element, and the planetary gear X2 of the planetary row is connected.
The electric drive axle has two structural configurations, the first: the first input shaft 001, the second input shaft 005, the first intermediate shaft 002, the second intermediate shaft 004 and the hollow shaft 003 are parallel to each other and are arranged in a plane, so that the height dimension of the electric drive axle can be effectively reduced, and the electric drive axle is flat; second kind: the first input shaft 001, the second input shaft 005, the first intermediate shaft 002, the second intermediate shaft 004 and the hollow shaft 003 are parallel to each other and are arranged in a V shape, so that the radial size of the electric drive axle can be effectively reduced, and the electric drive axle structure in the form is more compact.
The electric drive axle has the following power output routes:
Route 1: the power of the first motor M1 is transmitted to a differential mechanism element through a first input shaft 001, a first gear 11A, a second gear 11B, a first intermediate shaft 002, a third gear 12A, a fifth gear 12B, a hollow shaft 003 and a planetary row, and finally, the power output is realized through a first output half shaft 006 and a second output half shaft 007;
route 2: the gear shifter moves leftwards to be combined with the seventh gear 22A, the power of the second motor M2 is transmitted to a differential mechanism element through a second input shaft 005, a tenth gear 21A, a ninth gear 21B, a second intermediate shaft 004, a seventh gear 22A, a fourth gear 22B, a hollow shaft 003 and a planetary row, and finally, the power output is realized through a first output half shaft 006 and a second output half shaft 007;
Route 3: the right shift of the shifter is combined with the eighth gear 23A, the power of the second motor M2 is transmitted to the differential element through the second input shaft 005, the tenth gear 21A, the ninth gear 21B, the second intermediate shaft 004, the eighth gear 23A, the sixth gear 23B, the hollow shaft 003 and the planetary gear, and finally, the power output is realized through the first output half shaft 006 and the second output half shaft 007.
The electric drive axle has the following working phases:
starting: the first motor M1 and the second motor M2 work simultaneously, so that high torque and high power output are met;
Shift stage: the gear shifter is in the middle position and separated from the seventh gear 22A and the eighth gear 23A, the second motor M2 does not output power, and at the moment, the first motor M1 works to meet the power gear shifting output;
low load phase: the second motor M2 does not work, and the first motor M1 works, so that low-power high-speed output is met.
The electric drive axle has the double motors, the double motors can work together or can work independently, the power requirement and the economical requirement are met, the differential mechanism assembly, the first motor and the second motor are arranged on the same side of the reduction gear set, the space between the first motor and the second motor is fully utilized for placing the differential mechanism assembly, the axial size of the electric drive axle is effectively shortened, the structure is more compact, in addition, the input shafts of the first motor and the second motor are connected with only one gear, the input gear sets of the two motors are designed in a common parameter mode, modular processing can be performed, and the processing cost of cutters and the like is reduced.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A double-motor low-cost compact electric drive axle is characterized in that: comprising
The first motor is provided with a first input shaft, and a first gear is connected to the first input shaft;
the second motor is provided with a second input shaft, and a tenth gear is connected to the second input shaft;
The speed reduction gear set comprises a first intermediate shaft and a second intermediate shaft, the first intermediate shaft is connected with a second gear and a third gear, the second gear is meshed with the first gear, a seventh gear and an eighth gear are rotatably sleeved on the second intermediate shaft, the speed reduction gear set is connected with a gear shifter and a ninth gear, the ninth gear is meshed with the tenth gear, and the gear shifter is positioned between the seventh gear and the eighth gear and can be selectively combined with the seventh gear or the eighth gear or separated from the seventh gear and the eighth gear;
The output gear set comprises a hollow shaft, a fourth gear, a fifth gear and a sixth gear are connected to the hollow shaft, the fourth gear is meshed with the seventh gear, the fifth gear is meshed with the third gear, and the sixth gear is meshed with the eighth gear;
The differential mechanism assembly is positioned on the same side of the speed reduction gear set as the first motor and the second motor, the differential mechanism assembly is positioned between the first motor and the second motor, the differential mechanism assembly comprises a planetary row and a differential mechanism element, a sun gear of the planetary row is connected to a hollow shaft, the differential mechanism element is provided with a first output half shaft and a second output half shaft, the first output half shaft is rotatably arranged in the hollow shaft in a penetrating mode, and a shell of the differential mechanism element is used as a planet carrier to be connected with planet gears of the planetary row.
2. The dual motor low cost compact electric drive axle of claim 1 wherein: the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are parallel to each other.
3. The dual motor low cost compact electric drive axle of claim 2 wherein: the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are arranged in a plane.
4. The dual motor low cost compact electric drive axle of claim 2 wherein: the first input shaft, the second input shaft, the first intermediate shaft, the second intermediate shaft and the hollow shaft are arranged in a V shape.
5. The dual motor low cost compact electric drive axle of claim 1 wherein: the first output half shaft and the second output half shaft are coaxially arranged, the extending directions are opposite, and the first output half shaft and the hollow shaft are coaxially arranged.
6. The dual motor low cost compact electric drive axle of claim 1 wherein: the first gear, the second gear, the ninth gear and the tenth gear are in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323181679.2U CN221023127U (en) | 2023-11-24 | 2023-11-24 | Double-motor low-cost compact electric drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323181679.2U CN221023127U (en) | 2023-11-24 | 2023-11-24 | Double-motor low-cost compact electric drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221023127U true CN221023127U (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323181679.2U Active CN221023127U (en) | 2023-11-24 | 2023-11-24 | Double-motor low-cost compact electric drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221023127U (en) |
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2023
- 2023-11-24 CN CN202323181679.2U patent/CN221023127U/en active Active
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