CN211335439U - Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors - Google Patents

Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors Download PDF

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Publication number
CN211335439U
CN211335439U CN201921544498.2U CN201921544498U CN211335439U CN 211335439 U CN211335439 U CN 211335439U CN 201921544498 U CN201921544498 U CN 201921544498U CN 211335439 U CN211335439 U CN 211335439U
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motor
gear
stage
double
speed
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CN201921544498.2U
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Inventor
张步良
杨博
陈选楠
唐建颖
周军
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Dongfeng Dana Axle Co Ltd
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Dongfeng Dana Axle Co Ltd
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Abstract

The utility model relates to a two grades of speed reduction electricity that two motor integration two grades of AMT double speed parallel shafts exported drives axle. Belongs to the technical field of new energy vehicles. It solves current drive axle of electricity and has the motor to generate heat great and occupy the problem that chassis structural arrangement space. It is mainly characterized in that: the differential mechanism comprises a first motor, a second motor, a speed reducer, a differential mechanism, a first half shaft and a second half shaft; the reducer comprises a primary driving gear and a secondary primary reducing driven gear which are meshed, a primary driving gear and a primary reducing driven gear which are meshed, and two secondary reducer driving wheels and a secondary reducing driven wheel which are meshed; the first motor, the second-stage reduction driven wheel and the differential are arranged by adopting parallel shafts. The utility model has the characteristics of the coaxial compact design of structure, transmission efficiency height, the chassis structural arrangement of being convenient for, the dead weight is light and improve whole car economic nature.

Description

Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors
Technical Field
The utility model belongs to the technical field of new energy automobile. In particular to a two-stage speed reduction electric drive axle integrating two motors and outputting two-gear AMT double-speed parallel shafts.
Background
With the development of science and technology and the requirements of environmental protection and energy conservation, the development of the power chain of the whole vehicle is changed from the original engine, the gearbox and the traditional axle into the currently adopted motor and the transmission axle to provide power, and most manufacturers adopt an external single-motor structure at present. The structure is limited by factors such as motor power, an efficient working area and the like, the cost is too high under the condition of higher bearing, the heat generated by the motor is increased, the service life of the motor is influenced and the like; the size of each part is large, the number of the parts is large, the integration level is too low, the arrangement space of a chassis structure is occupied, the arrangement number of batteries and the transmission efficiency are influenced, and the driving range of the vehicle is short; the power performance and the economical efficiency of the whole vehicle are hardly considered.
Disclosure of Invention
In order to overcome prior art not enough, the utility model provides a two grades of speed reduction electricity of two integrated grades of AMT double speed parallel shaft outputs drive axle that drives.
In order to achieve the above object, the utility model adopts the following technical solutions: the utility model provides a two grades of speed reduction electricity that two grades of AMT double speed parallel shaft of two motor integration drive axles that drive, includes first motor, reduction gear, differential mechanism, first semi-axis, second semi-axis, independent suspension system and axle housing, its characterized in that: the device also comprises a second motor; the speed reducer comprises two groups of meshed first-stage driving gears and first-stage second-stage speed reducing driven gears, two groups of meshed first-stage driving gears and first-stage speed reducing driven gears, two meshed second-stage speed reducer driving gears and a second-stage speed reducing driven gear, and two synchronizers, wherein the second-stage speed reducer driving gears, the first-stage speed reducing driven gears, the first-stage second-stage speed reducing driven gears and the synchronizers are coaxially arranged in two groups; the first motor shaft of the first motor is integrated with two primary driving gears, and the second motor shaft of the second motor is integrated with the other two primary driving gears; the first motor, the second motor, the secondary speed reduction driven wheel and the differential are arranged in a parallel shaft mode; the independent suspension system is arranged between the middle part of the axle housing and the two wheel edges.
In the scheme, an independent suspension system is respectively arranged between the middle part of the axle housing and the two wheel edges, the upper end of the independent suspension system is connected with an automobile body, and the lower end of the independent suspension system is connected with the axle housing.
In the above scheme, the first motor and the second motor are driving motors of the same type.
In the scheme, the secondary speed reduction driven wheel and the differential are integrated to form the secondary speed reduction driven wheel and the differential; the secondary speed reduction driven wheel and the differential are respectively connected with the first half shaft and the second half shaft through meshing sleeve splines.
In the above scheme, the first motor and the second motor are distributed in mirror symmetry relative to a vertical plane on which the first half shaft and the second half shaft are located.
In the above scheme, the first motor, the second motor and the speed reducer are arranged transversely.
In the scheme, an independent suspension system is respectively arranged between the middle part of the axle housing and two wheel sides, the upper end of the independent suspension system is connected with an automobile body, and the lower end of the independent suspension system is connected with the axle housing; the first motor and the second motor are driving motors with the same model; the secondary speed reduction driven wheel and the differential are designed integrally to form a secondary speed reduction driven wheel and a differential; the secondary speed reduction driven wheel and the differential are respectively in splined connection with the first half shaft and the second half shaft through meshing sleeves; the first motor and the second motor are distributed in a mirror symmetry mode relative to a vertical plane where the first half shaft and the second half shaft are located; the first motor, the second motor and the speed reducer are transversely arranged.
The utility model discloses a bi-motor is as the power supply, with motor shaft and one-level speed reduction driving gear design as an organic whole. When the first gear (low gear) works, the first gear (low gear) second-stage driven gear and the differential are connected together through the meshing sleeve spline, the wheel is transmitted through the half shaft, the first gear (low gear) power transmission is realized, and at the moment, the second gear (high gear) second-stage driven gear and the differential slide through the roller pins between the first gear (low gear) second-stage driven gear and the differential. When the two-gear (high gear) works, the two-gear (high gear) secondary driven wheel and the differential are connected together through the three parts of the meshing sleeve splines and are transmitted to wheels through the half shaft, so that the power transmission of the two-gear (high gear) is realized, and at the moment, the one-gear (low gear) secondary driven cylindrical gear and the differential slide through the roller pins between the two parts.
The utility model discloses a two pairs of gears are evenly arranged from top to bottom, have realized the power reposition of redundant personnel, have effectively reduced the gear specification. The trafficability characteristic of the whole vehicle is improved. The utility model discloses a biax is arranged, makes reduction gear spatial structure arrange more rationally, arranges differential mechanism between two driven gear of two-stage reduction, and further spatial arrangement is further compact ingenious.
The utility model discloses the switching of two gears, control about driving the meshing cover through the motor promotion declutch shift lever, keep off driven cylindrical gear meshing with one respectively through the spline, realized shifting and the transmission of power, make the motor work in higher high-efficient district all the time, promoted whole car efficiency.
The utility model discloses integrated independent suspension system, compact structure improves whole car ride comfort and controls and operating stability etc.. The utility model discloses motor, reduction gear transversal arrangement have saved the chassis space for whole car can arrange more batteries, has improved the continuation of the journey mileage of whole car.
Compared with the prior art, the utility model coaxial compact design of structure, transmission efficiency is high, and the chassis structure of being convenient for arranges that the dead weight is light. The double-gear structure is adopted, so that the whole vehicle can better adapt to different working conditions, and the economy of the whole vehicle is improved. And the two-stage speed reduction is adopted, so that the dynamic property of the whole vehicle is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a first motor; 2. a first motor shaft; 3. a first primary two-gear reduction driven gear; 4. A first primary-stage first-gear reduction driven gear; 5. a first synchronizer; 6. a first secondary reduction drive gear; 7. a second motor; 8. a second motor shaft; 9. a second first-stage two-gear reduction driven gear; 10. a second primary first-gear speed reduction driven gear; 11. a second synchronizer; 12. a second secondary reduction drive gear; 13. a secondary speed reduction driven wheel and a differential mechanism; 14. a first half shaft; 15. a second half shaft; 16. a first wheel; 17. a second wheel; 18. an independent suspension system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the utility model relates to a two grades of AMT double speed parallel shaft output's of two motor integration second reduction electricity drive axle, including first motor 1 and second motor 7, the reduction gear, differential mechanism, first semi-axis 14, second semi-axis 15, independent suspension system 18 and axle housing, the reduction gear includes two sets of meshed one-level driving gears and one-level two fender speed reduction driven gear, two sets of meshed one-level driving gears and one-level one keep off speed reduction driven gear, two meshed second reduction gear driving gears and one second reduction driven gear, and two synchronizers, wherein, the second reduction gear action wheel, one-level one keeps off speed reduction driven gear, one-level two keep off speed reduction driven gear and synchronizer divide two sets of coaxial settings. The first motor shaft 2 of the first motor 1 and two first-level driving gears are integrally designed, the second motor shaft 8 of the second motor 7 and the other two first-level driving gears are integrally designed, and the first motor shaft 2 and the second motor shaft 8 are used as a motor output shaft and an input shaft of a speed reducer. The first motor 1, the second motor 7, the second-stage reduction driven wheel and the differential mechanism are arranged by adopting parallel shafts. An independent suspension system 18 is respectively arranged between the middle part of the axle housing and the two wheel edges, the upper end of the independent suspension system 18 is connected with an automobile body, and the lower end of the independent suspension system is connected with the axle housing. The differential is connected by splines of the sleeve to a first axle shaft 14 and a second axle shaft 15, respectively, the first axle shaft 14 and the second axle shaft 15 being connected to a first wheel 16 and a second wheel 17, respectively.
The first motor 1 and the second motor 7 are drive motors of the same type. The secondary speed reduction driven wheel and the differential mechanism are designed integrally to form a secondary speed reduction driven wheel and a differential mechanism 13, and the secondary speed reduction driven wheel and the differential mechanism 13 are connected with the first half shaft 14 and the second half shaft 15 through meshing sleeve splines respectively. The first electric machine 1 and the second electric machine 7 are distributed with mirror symmetry with respect to a vertical plane in which the first half-shaft 14 and the second half-shaft 15 are located. The first motor 1, the second motor 7 and the speed reducer are arranged transversely.
Because the driven wheel and the differential mechanism 13 are not provided with power coupling devices, the output speeds of the two motors to the driven wheel are ensured to be the same in the normal running process; due to the existence of the two synchronizers, the two motors can be shifted at different times, and the smoothness during shifting is improved. The utility model converts a high-power motor into two low-power motors under the condition of not reducing the output power, thereby reducing the high-power output working condition, prolonging the service life of the motor and reducing the production and maintenance cost; the transmission mechanism adopts primary speed reduction, has compact structure and high transmission efficiency, and is convenient for structural arrangement of the chassis; the integrated independent suspension system has a compact structure, and improves the running smoothness, operation stability and the like of the whole vehicle.
When the motor works normally, the first motor shaft 2 and the first primary driving gear, the second motor shaft 8 and the second primary driving gear drive the first primary two-gear speed reducing driven gear 3, the second primary two-gear speed reducing driven gear 9 and the first primary one-gear speed reducing driven gear 4, the second first-level reduction driven gear 10, the first-level reduction driven gear 4, the second first-level reduction driven gear 10, the first-level second-level reduction driven gear 3, the second first-level second-level reduction driven gear 9, the first second-level reduction driving gear shaft 6 and the second-level reduction driving gear 12 drive a second-level reduction driven gear and a differential mechanism 13 through spline matching of the first synchronizer 5 and the second synchronizer 11, power is transmitted to the first half shaft 14 and the second half shaft 15, and the first half shaft 14 and the second half shaft 15 drive a first wheel 16 and a second wheel 17, so that the power is transmitted to the wheels from the motor.
When the first gear runs, the first synchronizer 5 and the second synchronizer 11 are connected with the first primary second-gear speed reduction driven gear 3 and the second primary second-gear speed reduction driven gear 9, the power of the first primary first-gear speed reduction driven gear 4 and the second primary first-gear speed reduction driven gear 10 is transmitted to the second-stage speed reduction driven wheel and the differential mechanism 13, the power is transmitted to the first half shaft 14 and the second half shaft 15, the first half shaft 14 and the second half shaft 15 drive the first wheel 16 and the second wheel 17, and therefore the power is transmitted to the wheels from the motor.
In the second-gear operation, the first synchronizer 5 and the second synchronizer 11 are engaged with the first primary first-gear speed reduction driven gear 4 and the second primary first-gear speed reduction driven gear 10, the power of the first primary second-gear speed reduction driven gear 3 and the second primary second-gear speed reduction driven gear 9 is transmitted to the second-stage speed reduction driven gear and the differential mechanism 13, the power is transmitted to the first half shaft 14 and the second half shaft 15, and the first half shaft 14 and the second half shaft 15 drive the first wheel 16 and the second wheel 17, so that the power is transmitted to the wheels from the motor.
The utility model discloses a bi-motor, one-level speed reduction, parallel shaft arrange, and the structure of this kind of compactness is arranged and can be reduced high-power motor and use, and reduce cost shortens the driving chain, raises the efficiency, reduces the shared space of axle, reduces the weight of whole axle, increases the battery capacity in carriage, promotes the vehicle and continues to go the mileage.

Claims (7)

1. The utility model provides a two grades of speed reduction electricity that two grades of AMT double speed parallel shaft of two motor integration drive axles that drive, includes first motor (1), reduction gear, differential mechanism, first semi-axis (14), second semi-axis (15), independent suspension system (18) and axle housing, its characterized in that: also comprises a second motor (7); the speed reducer comprises two groups of meshed first-stage driving gears and first-stage second-stage speed reducing driven gears, two groups of meshed first-stage driving gears and first-stage speed reducing driven gears, two meshed second-stage speed reducer driving gears and a second-stage speed reducing driven gear, and two synchronizers, wherein the second-stage speed reducer driving gears, the first-stage speed reducing driven gears, the first-stage second-stage speed reducing driven gears and the synchronizers are coaxially arranged in two groups; a first motor shaft (2) of the first motor (1) is integrated with two primary driving gears, and a second motor shaft (8) of the second motor (7) is integrated with the other two primary driving gears; the first motor (1), the second motor (7), the secondary speed reduction driven wheel and the differential are arranged in a parallel shaft manner; and the independent suspension system (18) is arranged between the middle part of the axle housing and two wheel edges.
2. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output according to claim 1 is characterized in that: an independent suspension system (18) is respectively arranged between the middle of the axle housing and the two wheel edges, the upper end of the independent suspension system (18) is connected with an automobile body, and the lower end of the independent suspension system is connected with the axle housing.
3. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output as claimed in claim 1 or 2, wherein: the first motor (1) and the second motor (7) are driving motors with the same model.
4. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output as claimed in claim 1 or 2, wherein: the secondary speed reduction driven wheel and the differential are designed integrally to form a secondary speed reduction driven wheel and a differential (13); the two-stage reduction driven wheel and the differential (13) are respectively connected with the first half shaft (14) and the second half shaft (15) through meshing sleeve splines.
5. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output as claimed in claim 1 or 2, wherein: the first motor (1) and the second motor (7) are distributed in a mirror symmetry mode relative to a vertical plane where the first half shaft (14) and the second half shaft (15) are located.
6. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output as claimed in claim 1 or 2, wherein: the first motor (1), the second motor (7) and the speed reducer are transversely arranged.
7. The two-stage speed reduction electric drive axle with the double-motor integrated two-gear AMT double-speed parallel shaft output according to claim 1 is characterized in that: an independent suspension system (18) is respectively arranged between the middle part of the axle housing and the two wheel sides, the upper end of the independent suspension system (18) is connected with the automobile body, and the lower end of the independent suspension system is connected with the axle housing; the first motor (1) and the second motor (7) are driving motors with the same model; the secondary speed reduction driven wheel and the differential are designed integrally to form a secondary speed reduction driven wheel and a differential (13); the secondary speed reduction driven wheel and the differential (13) are respectively in spline connection with a first half shaft (14) and a second half shaft (15) through meshing sleeves; the first motor (1) and the second motor (7) are distributed in a mirror symmetry mode relative to a vertical plane where the first half shaft (14) and the second half shaft (15) are located; the first motor (1), the second motor (7) and the speed reducer are transversely arranged.
CN201921544498.2U 2019-09-17 2019-09-17 Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors Active CN211335439U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921544498.2U CN211335439U (en) 2019-09-17 2019-09-17 Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921544498.2U CN211335439U (en) 2019-09-17 2019-09-17 Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors

Publications (1)

Publication Number Publication Date
CN211335439U true CN211335439U (en) 2020-08-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921544498.2U Active CN211335439U (en) 2019-09-17 2019-09-17 Two-level speed reduction electric drive axle integrating two-gear AMT double-speed parallel shaft output of double motors

Country Status (1)

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CN (1) CN211335439U (en)

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