CN218702670U - Large speed ratio single motor-driven bridge - Google Patents
Large speed ratio single motor-driven bridge Download PDFInfo
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- CN218702670U CN218702670U CN202222712297.7U CN202222712297U CN218702670U CN 218702670 U CN218702670 U CN 218702670U CN 202222712297 U CN202222712297 U CN 202222712297U CN 218702670 U CN218702670 U CN 218702670U
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- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model provides a single electromechanical bridge of big velocity ratio is provided, by the following parts: the first gear is connected with a motor shaft of the single motor; the parallel shaft is fixedly provided with a second gear and a third gear; the intermediate shaft is fixedly connected with a fourth gear, a first planet row and intermediate shaft joint teeth in sequence; the differential mechanism comprises a differential mechanism shell and a differential gear, wherein the differential mechanism shell is connected with a power input shaft, and the differential gear is connected with a first output half shaft and a second output half shaft; the first wheel side speed reducing mechanism is connected between the first output half shaft and the first wheel; the second wheel side speed reducing mechanism is connected between the second output half shaft and a second wheel; and an engaging sleeve switchable between a first position and a second position. The single motor is externally arranged, so that the space on one side of the electric drive bridge can be increased, and the arrangement of a power battery is facilitated.
Description
Technical Field
The utility model relates to a new energy automobile spare part field especially relates to a single electromechanical bridge that drives of big velocity ratio.
Background
Along with the deepening of the new energy strategy of the country, the new energy passenger vehicle is gradually becoming the mainstream motorcycle type, but the electric progress of commercial vehicle is lagged behind a lot compared with the passenger vehicle, the current mainstream new energy commercial vehicle is still based on the central driving form that the fuel vehicle structure transformation of transmission came, mainly change transmission engine and gearbox power assembly into motor and gearbox power assembly, transmission shaft and transaxle have been kept, this kind of structure integration degree is lower, high efficiency, and owing to kept the transmission shaft, more chassis space has been taken up, can't arrange power battery in a large number on the chassis.
In addition, there is a design of dual-motor electric bridge in the prior art, however, the arrangement of dual motors is not favorable for space saving, and cannot adapt to larger capacity/space arrangement of power batteries.
How to improve electric drive axle's integrated level, how rationally arrange transmission system structure, how abundant utilization space, reduce system size, increase the ground clearance of bridge, improve the mechanical efficiency of system etc. all are the problem that the industry is urgent to solve.
Accordingly, there is a need to develop a single electro-mechanical axle with a high speed ratio that solves 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 the utility model discloses an aspect provides a single electromechanical bridge of big velocity ratio, its characterized in that comprises following part:
the first gear is connected with a motor shaft of the single motor;
the parallel shaft is fixedly provided with a second gear and a third gear;
the intermediate shaft is fixedly connected with a fourth gear, a first planet row and intermediate shaft joint teeth in sequence;
the differential mechanism comprises a differential mechanism shell and a differential gear, wherein the differential mechanism shell is connected with a power input shaft, and the differential gear is connected with a first output half shaft and a second output half shaft;
the first wheel side speed reducing mechanism is connected between the first output half shaft and the first wheel;
the second wheel side speed reducing mechanism is connected between the second output half shaft and a second wheel; and
an engaging sleeve switchable between a first position and a second position;
the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear; the sleeve engages the first carrier of the first planetary row with the power input shaft when in the first position and engages the intermediate shaft engagement teeth with the power input shaft when in the second position.
According to yet another aspect of the invention, the single motor is arranged in parallel to the first output half shaft.
According to a further aspect of the invention, the parallel shafts are arranged parallel to the first output half shaft.
According to a further aspect of the invention, the engaging sleeve is also switchable to an intermediate position and disengaged from the first planet carrier and the intermediate shaft engaging teeth of the first planet row.
According to a further aspect of the invention, the first hub reduction mechanism comprises a second planetary row and the second hub reduction mechanism comprises a third planetary row.
According to the utility model discloses in another aspect, first planet row includes first sun gear, first planet wheel, first ring gear and first planet carrier, and first ring gear is connected in the box, first sun gear fixed connection in the jackshaft.
According to the utility model discloses in another aspect, the second planet row includes second sun gear, second planet wheel, second ring gear and second planet carrier, and the second ring gear is connected in the box, second sun gear fixed connection in first output semi-axis, second planet carrier is connected in first wheel.
According to the utility model discloses in another aspect, the third planet row includes third sun gear, third planet wheel, third ring gear and third planet carrier, and third ring gear is connected in the box, third sun gear fixed connection in second output semi-axis, third planet carrier connect in the second wheel.
The utility model discloses can obtain following one or more technological effect:
1. the single motor is arranged externally, so that the space on one side of the electric drive bridge can be increased, and the arrangement of a battery is facilitated; meanwhile, the single motor drive can simplify the control strategy and reduce the electric control cost.
2. The power of the motor is transmitted to the intermediate shaft through the parallel shaft, so that the whole system is more flexible in arrangement, the space can be fully utilized and the size of the system can be reduced by adjusting the angles among the motor shaft, the parallel shaft and the intermediate shaft, and the motor with different radial sizes and motors with different rotating speeds can be adapted by adjusting the center distance between the motor shaft and the parallel shaft and the center distance between the parallel shaft and the intermediate shaft;
3. the wheel edge speed reducing mechanism adopts a planetary row design and is placed on a wheel edge, so that the structure of a traditional wheel reduction axle can be adopted, the development cost is reduced, and the structural size of a middle gearbox of an electric drive axle can be 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 structural view of a high speed ratio single electro-mechanical bridge according to 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 bridge with a high speed ratio, characterized by consisting of:
the first gear 03 is connected with a motor shaft 02 of the single motor 01;
a parallel shaft 05 fixedly provided with a second gear 04 and a third gear 06;
the intermediate shaft 08 is fixedly connected with a fourth gear 07, a first planet row and intermediate shaft joint teeth 13 in sequence;
the differential comprises a differential shell 16 and a differential gear 17, wherein the differential shell 16 is connected with a power input shaft 15, and the differential gear 17 is connected with a first output half shaft 24 and a second output half shaft 18;
a first wheel reduction mechanism connected between the first output axle shaft 24 and a first wheel 29;
a second wheel reduction mechanism connected between the second output axle 18 and a second wheel 23; and
an engaging sleeve 14 switchable between a first position and a second position;
the first gear 03 is meshed with the second gear 04, and the third gear 06 is meshed with the fourth gear 07; the sleeve 14 in a first position engages the first carrier 12 of the first planetary row with the power input shaft 15, and the sleeve 14 in a second position engages the intermediate shaft engagement teeth 13 with the power input shaft 15.
Preferably, the power driven and supplied by the single motor is transmitted, via the first gear, the second gear, the third gear, the fourth gear and the intermediate shaft, to the power input shaft provided on the differential, through the first planet carrier of the first planet row or through the intermediate shaft engaging teeth, and then to the first and second output half shafts to the first and second wheels, respectively.
According to a further preferred embodiment of the invention, said single motor is arranged parallel to the first output half shaft 24.
According to a further preferred embodiment of the invention, said parallel axes are arranged parallel to the first output half shaft 24.
According to a further preferred embodiment of the invention, said engaging sleeve 14 can also be switched to an intermediate position and disengaged from the first planet carrier 12 and the intermediate shaft engaging teeth 13 of the first planet row.
According to a further preferred embodiment of the present invention, the first wheel reduction mechanism includes a second planetary row, and the second wheel reduction mechanism includes a third planetary row.
According to another preferred embodiment of the present invention, the first planetary row includes a first sun gear 09, a first planet gear 10, a first ring gear 11, and a first carrier 12, the first ring gear 11 is connected to the case, and the first sun gear 10 is fixedly connected to the intermediate shaft.
According to a further preferred embodiment of the present invention, the second planetary row comprises a second sun gear 25, a second planet gear 26, a second ring gear 27 and a second planet carrier 28, the second ring gear 27 being connected to the box, the second sun gear 25 being fixedly connected to said first output half shaft 24, the second planet carrier 28 being connected to the first wheel 29.
According to a further preferred embodiment of the present invention, the third planetary row comprises a third sun gear 19, a third planetary gear 20, a third ring gear 21 and a third planet carrier 22, the third ring gear 21 is connected to the box, the third sun gear 19 is fixedly connected to the second output half shaft 18, and the third planet carrier 22 is connected to the second wheel 23.
The utility model discloses can obtain following one or more technological effect:
1. the single motor is arranged externally, so that the space on one side of the electric drive bridge can be increased, and the arrangement of a power battery is facilitated; meanwhile, the single motor drive can simplify the control strategy and reduce the electric control cost.
2. The power of the motor is transmitted to the intermediate shaft through the parallel shaft, so that the whole system is more flexible in arrangement, the space can be fully utilized and the size of the system can be reduced by adjusting the angles among the motor shaft, the parallel shaft and the intermediate shaft, and the motor with different radial sizes and motors with different rotating speeds can be adapted by adjusting the center distance between the motor shaft and the parallel shaft and the center distance between the parallel shaft and the intermediate shaft;
3. the wheel edge speed reducing mechanism adopts a planetary row design and is placed on a wheel edge, so that the structure of a traditional wheel reduction axle can be adopted, the development cost is reduced, and the structural size of a middle gearbox of an electric drive axle can be 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 (8)
1. A high-speed-ratio single-motor electric-driven bridge is characterized by comprising the following components:
the first gear is connected with a motor shaft of the single motor;
the parallel shaft is fixedly provided with a second gear and a third gear;
the intermediate shaft is fixedly connected with a fourth gear, a first planet row and intermediate shaft engaging teeth in sequence;
the differential mechanism comprises a differential mechanism shell and a differential gear, wherein the differential mechanism shell is connected with a power input shaft, and the differential gear is connected with a first output half shaft and a second output half shaft;
the first wheel side speed reducing mechanism is connected between the first output half shaft and the first wheel;
the second wheel side speed reducing mechanism is connected between the second output half shaft and a second wheel; and
an engaging sleeve switchable between a first position and a second position;
the first gear is meshed with the second gear, and the third gear is meshed with the fourth gear; the sleeve engages the first carrier of the first planetary row with the power input shaft when in the first position and engages the intermediate shaft engagement teeth with the power input shaft when in the second position.
2. The high speed ratio single electro-mechanical axle of claim 1, wherein said single electric motor is arranged parallel to the first output half shaft.
3. The high speed ratio single electro-mechanical axle according to claim 2, wherein said parallel axes are arranged parallel to the first output half shaft.
4. A high ratio single electromechanical axle according to any one of claims 1 to 3, wherein said engagement sleeve is further shiftable to a neutral position and disengaged from the first carrier and countershaft engagement teeth of the first planetary row.
5. The high speed ratio single electro-mechanical axle of claim 4, wherein the first wheel reduction mechanism includes a second planetary row and the second wheel reduction mechanism includes a third planetary row.
6. The high speed ratio single motor electric drive axle of claim 5 wherein the first planetary row includes a first sun gear, a first planet gear, a first ring gear, and a first carrier, the first ring gear being connected to the housing, the first sun gear being fixedly connected to the intermediate shaft.
7. The high speed ratio single electro-mechanical axle of claim 6, wherein the second planetary row includes a second sun gear, a second planet gear, a second ring gear, and a second planet carrier, the second ring gear being connected to the case, the second sun gear being fixedly connected to the first output half shaft, and the second planet carrier being connected to the first wheel.
8. The high speed ratio single motor-driven axle according to claim 6, wherein the third planetary row comprises a third sun gear, a third planet gear, a third ring gear, and a third carrier, the third ring gear is connected to the case, the third sun gear is fixedly connected to the second output half shaft, and the third carrier is connected to the second wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222712297.7U CN218702670U (en) | 2022-10-14 | 2022-10-14 | Large speed ratio single motor-driven bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222712297.7U CN218702670U (en) | 2022-10-14 | 2022-10-14 | Large speed ratio single motor-driven bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218702670U true CN218702670U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222712297.7U Active CN218702670U (en) | 2022-10-14 | 2022-10-14 | Large speed ratio single motor-driven bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218702670U (en) |
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2022
- 2022-10-14 CN CN202222712297.7U patent/CN218702670U/en active Active
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Effective date of registration: 20240312 Address after: No.8, Jiangfang Road, Changjiang Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee after: Jiangsu Huayong composite materials Co.,Ltd. Country or region after: China Address before: 130000 No. 85 Puyang Street, Changchun Automobile Development Zone, Jilin Province (in the courtyard of Changchun automobile economic and Trade Development Zone Economic and Trade Corporation) Patentee before: Tomson (Jilin) Auto Parts Co.,Ltd. Country or region before: China |