CN218777399U - Single-motor-driven integrated drive axle system - Google Patents
Single-motor-driven integrated drive axle system Download PDFInfo
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- CN218777399U CN218777399U CN202223189193.9U CN202223189193U CN218777399U CN 218777399 U CN218777399 U CN 218777399U CN 202223189193 U CN202223189193 U CN 202223189193U CN 218777399 U CN218777399 U CN 218777399U
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- single motor
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Abstract
The integrated drive axle system driven by the single motor is provided and comprises the following components: the power input gear is fixedly connected to the short shaft and driven by the single-motor power unit; a minor axis; the spline housing can be relatively rotatably arranged in the short shaft in a penetrating way; the double-star planet row is fixedly connected to the first end of the spline housing, and a planet carrier of the double-star planet row is connected with the short shaft; the central shaft can penetrate through the spline sleeve in a relatively rotating manner, the first end of the central shaft is connected to the gear ring of the double-star planet row, and the second end of the central shaft is fixedly connected to the power output unit; a drive engaging tooth fixedly connected to the central shaft; an engagement gear sleeve slidably connected to the second end of the spline sleeve; and a brake engaging tooth attached to the case. The requirements of different road conditions on power, vehicle speed and economy can be met.
Description
Technical Field
The utility model relates to a new energy automobile spare part field especially relates to a single motor drive's integrated form transaxle system.
Background
New energy automobiles are increasingly receiving attention from the nation and the automobile industry. Integrated electric drive axle systems have gradually become the mainstream drive form for heavy commercial vehicles in the new generation. However, the existing electric drive bridge has a complex transmission structure, low efficiency, heavy weight and high cost, and is difficult to meet the requirements of different road conditions on power, vehicle speed and economy.
Therefore, there is a need to develop a single motor driven integrated drive axle system to solve one or more of the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a single motor driven integrated drive axle system, comprising:
the power input gear is fixedly connected to the short shaft and driven by the single-motor power unit;
a minor axis;
the spline housing can be relatively rotatably arranged in the short shaft in a penetrating way;
the double-star planet row is fixedly connected to the first end of the spline housing, and a planet carrier of the double-star planet row is connected with the short shaft;
the central shaft penetrates through the spline sleeve in a relatively rotatable manner, the first end of the central shaft is connected to the gear ring of the double-star planet row, and the second end of the central shaft is fixedly connected to the power output unit;
the driving engagement teeth are fixedly connected to the central shaft;
an engagement gear sleeve slidably connected to the second end of the spline sleeve; and
the brake engaging teeth are connected to the box body;
wherein the engagement sleeve is switchable between a first position in which the engagement sleeve engages the brake engagement teeth and a second position in which the engagement sleeve engages the drive engagement teeth.
In accordance with yet another aspect of the present invention, a single motor power unit includes a single motor and a drive gear.
According to yet another aspect of the present invention, the drive gear is engaged with the power input gear.
According to the utility model discloses in another aspect, the double star planet row includes sun gear, interior planet wheel, outer planet wheel, planet carrier and ring gear, and this sun gear fixed connection is in the first end of spline housing.
According to still another aspect of the present invention, the single motor power unit is composed of a single motor, a first gear and a second gear, the first gear is driven by the single motor, the second gear is engaged with the first gear, and the power input gear is engaged with the second gear.
According to the utility model discloses in another aspect, single motor power unit comprises single motor, first drive gear, second drive gear, transmission shaft and third drive gear, and first drive gear is driven by single motor, and second drive gear meshes with first drive gear, and second drive gear and third drive gear set up respectively in the transmission shaft both ends, power input gear meshes in third drive gear.
According to the utility model discloses still another aspect, power take off unit includes differential mechanism, and this differential mechanism is provided with the differential mechanism casing, differential mechanism casing and center pin fixed connection.
According to yet another aspect of the present invention, the differential is connected to a first output half shaft and a second output half shaft.
According to the utility model discloses still be provided with the planet row between center pin and the differential mechanism casing.
The utility model discloses can obtain following one or more technological effect:
1. a driving motor is matched with a double-star planet row speed change mechanism, so that the gear shifting function is realized, the gear speed step ratio of two gears can be controlled at a proper level, the gear shifting impact is reduced as much as possible on the premise of meeting the dynamic property and the economical efficiency of the whole vehicle, and the driving control comfort is improved.
2. By adopting the double-star planet row speed change mechanism, the bearing capacity of the planet gear is effectively improved, and the size requirement of the system structure is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of the main structure of a single motor driven integrated drive axle system (omitting a single motor power unit) according to a preferred embodiment of the present invention.
Fig. 2 is a first schematic structural diagram of a single motor power unit of a single motor-driven integrated transaxle system according to a preferred embodiment of the present invention.
Fig. 3-4 are schematic power transmission paths of a single motor driven integrated drive axle system according to a preferred embodiment of the present invention.
Fig. 5 is a schematic structural view of a single motor driven integrated drive axle system (single motor power unit having a second configuration) in accordance with another preferred embodiment of the present invention.
Detailed Description
The best mode of the invention will be described in detail with reference to the drawings, and the specific embodiments are to be considered as illustrative of the invention, but it should be understood that the invention is not limited to the details and since various changes and modifications can be made without departing from the spirit and scope of the invention, which is intended to be included within the scope of the invention.
Example 1
In accordance with a preferred embodiment of the present invention, and with reference to fig. 1-4, there is provided a single motor driven integrated drive axle system characterized by consisting of:
a power input gear 8 fixedly connected to the stub shaft 2 and driven by a single motor power unit;
a short shaft 2;
a spline housing 14 relatively rotatably inserted in the stub shaft 2;
the double-star planet row is fixedly connected to the first end of the spline housing 14, and a planet carrier 9 of the double-star planet row is connected with the short shaft 2;
the central shaft 22 is arranged in the spline housing 14 in a relatively rotatable manner, and a first end of the central shaft is connected to the gear ring 13 of the double-star planet row, and a second end of the central shaft is fixedly connected to the power output unit;
a driving engagement tooth 21 fixedly connected to the central shaft 22;
an engaging sleeve 15 slidably connected to the second end of the spline housing 14; and
a brake engagement tooth 19 connected to the case 20;
wherein the drive engaging teeth 15 are switchable between a first position, in which the drive engaging teeth 15 engage the brake engaging teeth 19, and a second position, in which the drive engaging teeth 21 engage.
According to yet another preferred embodiment of the present invention, referring to fig. 5, the single motor power unit includes a single motor M1 and a transmission gear.
According to a further preferred embodiment of the invention, see fig. 5, the transmission gear is in mesh with said power input gear 8.
According to a further preferred embodiment of the present invention, the double planetary gear set comprises a sun gear 10, an inner planetary gear 11, an outer planetary gear 12, a planet carrier 9 and a ring gear 13, the sun gear 10 being fixedly connected to a first end of a spline housing 14.
According to still another preferred embodiment of the present invention, the single motor power unit is composed of a single motor M1, a first gear, which is driven by the single motor, and a second gear, which is engaged with the first gear, and the power input gear 8 is engaged with the second gear.
According to another preferred embodiment of the present invention, referring to fig. 2, the single motor power unit is composed of a single motor M1, a first transmission gear 4, a second transmission gear 5, a transmission shaft 6 and a third transmission gear 7, the first transmission gear is driven by the single motor, the second transmission gear is engaged with the first transmission gear, the second transmission gear and the third transmission gear are respectively provided at both ends of the transmission shaft, and the power input gear 8 is engaged with the third transmission gear 7. Preferably, the single motor is connected to the first transmission gear 4 through the motor shaft 3.
According to a further preferred embodiment of the invention, the power take-off unit comprises a differential 28, which is provided with a differential housing 27, which differential housing 27 is fixedly connected with the central shaft 22.
According to a further preferred embodiment of the present invention, said differential 28 is connected to a first output half shaft 30 and a second output half shaft 29.
According to a further preferred embodiment of the present invention, a planetary row is further provided between the central shaft 22 and the differential case 27. The planet row comprises a sun wheel 23, planet wheels 24, a ring wheel 25 and a planet carrier 26. Preferably, the engaging gear sleeve 15 is connected with a shifting fork 16, the shifting fork 16 is fixed on a shifting transmission rod 17, and a shifting motor 18 drives the shifting transmission rod 17 to slide left and right to realize shifting.
Referring to fig. 3-4, as shown by the thick solid line in the drawings, it shows the power transmission route schematic diagram of the single motor driven integrated drive axle system of the present invention, and power is transmitted from the single motor M1 to the first output half shaft 30 and the second output half shaft 29 and then to the left and right wheels.
The utility model discloses can obtain following one or more technological effect:
1. a driving motor is matched with the double-star planetary gear row speed change mechanism, so that the gear shift function is realized, the gear speed step ratio of two gears can be controlled at a proper level, the gear shift impact is reduced as far as possible on the premise of meeting the dynamic property and the economical efficiency of the whole vehicle, and the driving control comfort is improved.
2. By adopting the double-star planet row speed change mechanism, the bearing capacity of the planet gear is effectively improved, and the size requirement of the system structure is reduced.
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 (9)
1. A single motor driven integrated drive axle system is characterized by comprising the following components:
the power input gear is fixedly connected to the short shaft and driven by the single-motor power unit;
a minor axis;
the spline housing can be relatively rotatably arranged in the short shaft in a penetrating way;
the double-star planet row is fixedly connected to the first end of the spline housing, and a planet carrier of the double-star planet row is connected with the short shaft;
the central shaft penetrates through the spline sleeve in a relatively rotatable manner, the first end of the central shaft is connected to the gear ring of the double-star planet row, and the second end of the central shaft is fixedly connected to the power output unit;
a drive engaging tooth fixedly connected to the central shaft;
an engagement gear sleeve slidably connected to the second end of the spline sleeve; and
the brake engaging teeth are connected to the box body;
wherein the engagement sleeve is switchable between a first position in which the engagement sleeve engages the brake engagement teeth and a second position in which the engagement sleeve engages the drive engagement teeth.
2. The single motor driven integrated transaxle system of claim 1 wherein the single motor power unit comprises a single motor and a drive gear.
3. The single motor driven integrated transaxle system of claim 2 wherein the drive gear is engaged with the power input gear.
4. The single motor driven integrated drive axle system according to any one of claims 1 to 3, wherein the double planetary row comprises a sun gear, an inner planetary gear, an outer planetary gear, a planet carrier and an annulus, the sun gear being fixedly connected to the first end of the spline housing.
5. The single motor driven integrated transaxle system of claim 1 wherein the single motor power unit comprises a single motor, a first gear and a second gear, the first gear being driven by the single motor, the second gear being engaged with the first gear, and the power input gear being engaged with the second gear.
6. The single-motor-driven integrated drive axle system according to claim 1, wherein the single-motor power unit is composed of a single motor, a first transmission gear, a second transmission gear, a transmission shaft and a third transmission gear, the first transmission gear is driven by the single motor, the second transmission gear is meshed with the first transmission gear, the second transmission gear and the third transmission gear are respectively arranged at two ends of the transmission shaft, and the power input gear is meshed with the third transmission gear.
7. The single motor driven integrated drive axle system according to claim 6 wherein the power take off unit comprises a differential having a differential housing fixedly connected to the central shaft.
8. The single motor driven integrated drive axle system according to claim 7 wherein said differential is connected to a first output half shaft and a second output half shaft.
9. The single motor drive integrated drive axle system of claim 7 wherein a planetary row is further disposed between the central axle and the differential housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223189193.9U CN218777399U (en) | 2022-11-29 | 2022-11-29 | Single-motor-driven integrated drive axle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223189193.9U CN218777399U (en) | 2022-11-29 | 2022-11-29 | Single-motor-driven integrated drive axle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218777399U true CN218777399U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223189193.9U Active CN218777399U (en) | 2022-11-29 | 2022-11-29 | Single-motor-driven integrated drive axle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218777399U (en) |
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2022
- 2022-11-29 CN CN202223189193.9U patent/CN218777399U/en active Active
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