CN211000773U - Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge - Google Patents
Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge Download PDFInfo
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- CN211000773U CN211000773U CN201921543154.XU CN201921543154U CN211000773U CN 211000773 U CN211000773 U CN 211000773U CN 201921543154 U CN201921543154 U CN 201921543154U CN 211000773 U CN211000773 U CN 211000773U
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Abstract
The utility model discloses a two motor single-speed second grade deceleration strip wheel limit speed reduction independent suspension parallel axis electricity drive bridge. Belongs to the technical field of new energy vehicles. The single motor mainly solves the problems of high energy loss, low transmission efficiency and weaker dynamic property of the existing single motor. It is mainly characterized in that: the system comprises a first motor, a second motor, a first half shaft, a second half shaft, a first wheel-side reducer assembly, a second wheel-side reducer assembly, a first reducer assembly and a second reducer assembly; the first and second motors are respectively arranged on the first and second speed reducer assemblies; the first and second speed reducer assemblies respectively comprise an input gear, a first and second speed reduction gears, an output gear and an intermediate shaft; two ends of the half shaft are respectively connected with the wheel-side reducer assembly and the reducer assembly; the first half shaft, the second half shaft, the first motor shaft and the second motor shaft are parallel to each other. The utility model has the characteristics of bi-motor drive, control transmission system mutual independence, cancel mechanical differential and save chassis space and weight, the parallel axis of mainly used single-speed second grade deceleration strip wheel limit speed reduction independent suspension drives the axle electrically.
Description
Technical Field
The utility model belongs to the technical field of new energy automobile. In particular to a double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge.
Background
With the increasing importance of automobile exhaust pollution and energy consumption in all parts of the world, new energy automobiles become the vehicle models which are researched and developed by automobile manufacturers in all countries. The whole vehicle power system is also changed from the original engine + gearbox + traditional axle into the currently adopted motor + transmission axle to provide power. At present, the mature and more applied electric drive technology in domestic and foreign markets is based on a transmission system consisting of a single motor and a differential speed reducer, the single motor centralized drive mode mainly depends on rigid power transmission of gears and couplings, the loss of the single motor centralized drive mode is almost the same as that of a common fuel automobile in the power transmission process, the energy loss is high, the transmission efficiency is low, and the dynamic property is weaker.
Disclosure of Invention
In order to overcome prior art not enough, the utility model provides a two motor single-speed second grade deceleration strip wheel limit speed reduction independent suspension parallel shaft electricity drive bridge.
In order to achieve the above object, the utility model adopts the following technical solutions: the utility model provides a two motor single-speed second grade deceleration strip wheel limit speed reduction independent suspension parallel shaft electricity drive bridge, includes first motor, first semi-axis, second semi-axis, first wheel limit reduction gear assembly, second wheel limit reduction gear assembly and first reduction gear assembly, its characterized in that: the first motor is arranged on a first speed reducer assembly, the first speed reducer assembly comprises a first input gear and a first primary speed reducing gear which are meshed, a first secondary speed reducing gear and a first output gear which are meshed, and a first intermediate shaft, and the first primary speed reducing gear and the first secondary speed reducing gear are arranged on the first intermediate shaft; the motor is characterized by further comprising a second motor and a second speed reducer assembly, wherein the second motor is mounted on the second speed reducer assembly, the second speed reducer assembly comprises a second input gear and a second first-stage speed reducing gear which are meshed with each other, a second-stage speed reducing gear and a second output gear which are meshed with each other, and a second intermediate shaft, and the second first-stage speed reducing gear and the second-stage speed reducing gear are arranged on the second intermediate shaft; two ends of the first half shaft are respectively connected with the first wheel-side reducer assembly and the first reducer assembly, and two ends of the second half shaft are respectively connected with the first wheel-side reducer assembly and the second reducer assembly; the first half shaft, the second half shaft, the first motor shaft and the second motor shaft are parallel to each other.
The first motor and the second motor are coaxial and arranged at intervals in the technical proposal of the utility model; the first motor shaft is connected with the first input gear through a spline, and the second motor shaft is connected with the second input gear through a spline.
The utility model discloses among the technical solution first motor and first reduction gear assembly and second motor and the total composition bilateral symmetry of second reduction gear arrange.
The utility model discloses among the technical solution first motor be the driving motor of the same model or different models with the second motor.
The first hub reduction gear assembly in the technical solution of the present invention comprises a first sun gear, a first planet carrier and a first gear ring, wherein the first sun gear is mounted on the end surface of a first half shaft; the second hub reduction gear assembly comprises a second sun gear, a second planet carrier and a second gear ring, and the second sun gear is arranged on the end face of the second half shaft; the half shaft is connected with the sun gear through a spline.
The utility model discloses in the technical solution the first output gear is fixedly installed on the first half axle; the second output gear is fixedly mounted on the second half shaft.
The first motor and the second motor in the technical solution of the utility model are driving motors with the same model; the first motor and the second motor are coaxial and arranged at intervals; the first motor and the first reducer assembly are symmetrically arranged on two sides of the total components of the second motor and the second reducer; the first motor shaft is connected with the first input gear through a spline, and the second motor shaft is connected with the second input gear through a spline; the first half shaft is connected with the first wheel, and the second half shaft is connected with the second wheel; the first hub reduction gear assembly comprises a first sun gear, a first planet carrier and a first gear ring, wherein the first sun gear is arranged on the end face of the first half shaft; the second hub reduction gear assembly comprises a second sun gear, a second planet carrier and a second gear ring, and the second sun gear is arranged on the end face of the second half shaft; the half shaft is connected with the sun gear through a spline; the half shaft is connected with the sun gear through a spline.
The first wheel-side reducer assembly in the technical solution of the utility model is fixed on the first wheel; and the second wheel-side reducer assembly is fixedly arranged on a second wheel.
The utility model discloses bi-motor and reduction gear divide bilateral symmetry to arrange, and left and right sides transmission system is the same, and the output fixed mounting of motor shaft has input gear, and input gear meshes connects one-level reduction gear, and one-level reduction gear fixed mounting has second grade reduction input gear in the one end of jackshaft, and the other end fixed mounting of jackshaft has second grade reduction input gear, and second grade reduction input gear meshes and connects second grade reduction output gear, second grade reduction output gear installs in semi-axis one end, and the sun gear is installed to the semi-axis other end, and planetary gear is connected in the sun gear meshing, and the ring gear is fixed motionless, and planetary gear drives the.
The utility model discloses control transmission system mutual independence, no mechanical connection has cancelled mechanical differential mechanism isotructure, has saved the chassis space, has reduced whole bridge weight, has improved continuation of the journey mileage. The single-speed two-stage speed reduction is adopted, the structure is simple, the torque is large, and the loss in the energy transfer process is small. The wheel reduction gear is integrated, and the vehicle trafficability and the dynamic property are further improved.
The utility model adopts the independent suspension structure, which can reduce the inclination and the vibration of the car body, reduce the impact force received by the car body and improve the driving comfort; the center of gravity can be lowered, thereby improving the driving stability.
The utility model discloses owing to cancelled differential mechanism, control such as turn antiskid adopts the electron differential, and two wheel torques can independently distribute at any time according to the running state, and control is more accurate, and control efficiency is higher.
The utility model discloses electric drive axle adopts two motor drives, and distributed symmetrical arrangement, independent suspension compare traditional centralized drive form, and distributed drive adopts electronic differential control, has reduced the mechanical loss that differential mechanism brought, has improved transmission efficiency; the torque of each motor is independently controllable, the response is fast, and the stability of the vehicle can be improved by coordinately controlling each motor; under the requirement of the same power, the power can be distributed to each motor, so that the size of the motor is reduced, and the axle is more flexibly arranged; the single-speed two-stage speed reduction integrated transmission system is simple in structure and light in weight, and the endurance mileage can be improved; the integrated hub reduction further reduces the speed and increases the torque, and the trafficability characteristic and the dynamic characteristic of the electric drive bridge are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The names corresponding to the sequence numbers in the figure are as follows: 1-a first electric machine, 2-a first motor shaft, 3-a first input gear, 4-a first reduction gear, 5-a first intermediate shaft, 6-a first reduction gear, 7-a first output gear, 8-a first half shaft, 9-a first ring gear, 10-a first planet carrier, 11-a first sun gear, 12-a first planet gear, 13-a first wheel, 14-a second electric machine, 15-a second motor shaft, 16-a second input gear, 17-a second first reduction gear, 18-a second intermediate shaft, 19-a second reduction gear, 20-a second output gear, 21-a second half shaft, 22-a second ring gear, 23-a second planet carrier, 24-a second sun gear, 25-a second planet gear, 26-second wheel.
Detailed Description
As shown in fig. 1, the utility model relates to a two motor single-speed second grade deceleration strip wheel limit speed reduction independent suspension parallel shaft electricity drive bridge, including first motor 1, second motor 14, first semi-axis 8, second semi-axis 21, first wheel reduction assembly, second wheel reduction assembly, first reduction assembly and second reduction assembly. Wherein the first electric machine 1 is mounted on a first retarder assembly and the second electric machine 14 is mounted on a second retarder assembly. The first motor 1 and the first reducer assembly are symmetrically arranged on two sides of the total component of the second motor 14 and the first reducer, the double motors, the gear box and the reducers are symmetrically arranged on two sides, and the transmission systems on the left side and the right side are the same. The first motor 1 and the second motor 14 are driving motors of the same type, and the first motor 1 and the second motor 14 are arranged coaxially and at intervals. The first half shaft 8, the second half shaft 21, the first motor shaft 2 and the second motor shaft 15 are parallel to each other.
The first speed reducer assembly comprises a first input gear 3 and a first primary speed reduction gear 4 which are meshed, a first secondary speed reduction gear 6 and a first output gear 7 which are meshed, and a first intermediate shaft 5, wherein the first primary speed reduction gear 4 and the first secondary speed reduction gear 6 are arranged on the first intermediate shaft 5. The second reduction assembly comprises a second input gear 16 and a second first reduction gear 17 which are meshed, a second reduction gear 19 and a second output gear 20 which are meshed, and a second intermediate shaft 18, wherein the second first reduction gear 17 and the second reduction gear 19 are arranged on the second intermediate shaft 18. The first motor shaft 2 is connected to the first input gear 3 through a spline, and the second motor shaft 15 is connected to the second input gear 16 through a spline. The two ends of the first half shaft 8 are respectively connected with the first wheel-side reducer assembly and the first reducer assembly, and the two ends of the second half shaft 21 are respectively connected with the first wheel-side reducer assembly and the second reducer assembly. The first hub reduction gear assembly comprises a first sun gear 11, a first planet gear 12, a first planet carrier 10 and a first gear ring 9, wherein the first sun gear 11 is arranged on the end face of the first half shaft 8. The second hub reduction gear assembly comprises a second sun gear 24, a second planet gear 25, a second planet carrier 23 and a second ring gear 22, wherein the second sun gear 24 is arranged on the end surface of the second half shaft 21. The first axle shaft 8 and the second axle shaft 21 are connected with the first sun gear 11 and the second sun gear 24 through splines respectively. The first output gear 7 is fixedly mounted on the first axle shaft 8 and the second output gear 20 is fixedly mounted on the second axle shaft 23.
The second motor 14 is connected with a second motor shaft 15, a second input gear 16 is fixedly mounted at the output end of the second motor shaft 15, the second input gear 16 is meshed with a second first-stage reduction gear 17, the second first-stage reduction gear 17 is fixedly mounted at one end of a second intermediate shaft 18, a second-stage reduction gear 19 is mounted at the other end of the second intermediate shaft 18, the second-stage reduction gear 19 is meshed with a second output gear 20, the second output gear 20 is fixedly mounted on a second half shaft 21, a second sun gear 24 is mounted at the end face of the second output half shaft 21, the second sun gear 24 drives a second planet gear 25 to rotate, a second gear ring 22 is fixed and fixed, the second planet gear 25 drives a second planet carrier 23 to rotate, and the second planet carrier 23 drives a second wheel 26 to rotate through a wheel hub.
The utility model has the characteristics of as follows: 1. the dual-motor drive is adopted, the left transmission system and the right transmission system are mutually independent and are symmetrically arranged, mechanical connection is avoided, structures such as a mechanical differential are omitted, loss in the energy transfer process is small, the space of a chassis is saved, the weight of the whole bridge is reduced, and the endurance mileage is improved; 2. the independent suspension structure is adopted, so that the inclination and the vibration of the vehicle body can be reduced, the impact force received by the vehicle body is reduced, and the driving comfort is improved; the center of gravity can be lowered, and the driving stability is improved; 3. two-stage speed reduction is adopted, so that the torque is large and the dynamic property is strong; 4. the integrated wheel edge is decelerated, the system integration level is high, the ground clearance of the whole bridge is larger, and the trafficability of the vehicle is improved; the dynamic property of the vehicle is enhanced, the starting acceleration time of the vehicle is reduced, and the climbing capability of the vehicle is enhanced; 5. by adopting distributed driving control, the torque of each motor is independently controllable, the response is fast, the stability of the vehicle can be improved by coordinately controlling each motor, and the control is more accurate.
Claims (8)
1. The utility model provides a two motor single-speed second grade deceleration strip wheel limit speed reduction independent suspension parallel shaft electricity drive bridge, includes first motor (1), first semi-axis (8), second semi-axis (21), first wheel limit reduction gear assembly, second wheel limit reduction gear assembly and first reduction gear assembly, its characterized in that: the first motor (1) is arranged on a first speed reducer assembly, the first speed reducer assembly comprises a first input gear (3) and a first primary speed reducing gear (4) which are meshed, a first secondary speed reducing gear (6) and a first output gear (7) which are meshed, and a first intermediate shaft (5), and the first primary speed reducing gear (4) and the first secondary speed reducing gear (6) are arranged on the first intermediate shaft (5); the motor is characterized by further comprising a second motor (14) and a second speed reducer assembly, wherein the second motor (14) is installed on the second speed reducer assembly, the second speed reducer assembly comprises a second input gear (16) and a second first-stage speed reducing gear (17) which are meshed with each other, a second-stage speed reducing gear (19) and a second output gear (20) which are meshed with each other, and a second intermediate shaft (18), and the second first-stage speed reducing gear (17) and the second-stage speed reducing gear (19) are arranged on the second intermediate shaft (18); two ends of the first half shaft (8) are respectively connected with the first wheel-side reducer assembly and the first reducer assembly, and two ends of the second half shaft (21) are respectively connected with the first wheel-side reducer assembly and the second reducer assembly; the first half shaft (8), the second half shaft (21), the first motor shaft (2) and the second motor shaft (15) are parallel to each other.
2. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1, is characterized in that: the first motor (1) and the second motor (14) are coaxially arranged at intervals; the first motor shaft (2) is connected with the first input gear (3) through a spline, and the second motor shaft (15) is connected with the second input gear (16) through a spline.
3. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1 or 2, is characterized in that: the first motor (1) and the first reducer assembly are symmetrically arranged on two sides of the total composition of the second motor (14) and the second reducer.
4. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1 or 2, is characterized in that: the first motor (1) and the second motor (14) are driving motors with the same type or different types.
5. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1 or 2, is characterized in that: the first hub reduction gear assembly comprises a first sun gear (11), a first planet gear (12), a first planet carrier (10) and a first gear ring (9), wherein the first sun gear (11) is arranged on the end face of a first half shaft (8); the second wheel-side reducer assembly comprises a second sun gear (24), a second planet gear (25), a second planet carrier (23) and a second gear ring (22), and the second sun gear (24) is mounted on the end face of the second half shaft (21); the half shafts are connected with the sun gears (11, 24) through splines.
6. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1 or 2, is characterized in that: the first output gear (7) is fixedly arranged on a first half shaft (8); a second output gear (20) is fixedly mounted on a second axle shaft (21).
7. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1, is characterized in that: the first motor (1) and the second motor (14) are driving motors with the same model; the first motor (1) and the second motor (14) are coaxially arranged at intervals; the first motor (1) and the first reducer assembly are symmetrically arranged on two sides of the total component of the second motor (14) and the second reducer; the first motor shaft (2) is connected with the first input gear (3) through a spline, and the second motor shaft (15) is connected with the second input gear (16) through a spline; the first half-shaft (8) is connected with a first wheel (13), and the second half-shaft (21) is connected with a second wheel (26); the first hub reduction gear assembly comprises a first sun gear (11), a first planet gear (12), a first planet carrier (10) and a first gear ring (9), wherein the first sun gear (11) is arranged on the end face of a first half shaft (8); the second wheel-side reducer assembly comprises a second sun gear (24), a second planet gear (25), a second planet carrier (23) and a second gear ring (22), and the second sun gear (24) is mounted on the end face of the second half shaft (21); the half shaft is connected with the sun gears (11, 24) through splines; the half shafts are connected with the sun gears (11, 24) through splines.
8. The parallel-axis electric drive bridge with the dual-motor single-speed two-stage speed reduction belt and the wheel-side speed reduction independent suspension according to claim 1 or 2, is characterized in that: the first wheel-side reducer assembly is fixedly arranged on a first wheel (13); the second wheel reduction assembly is fixedly arranged on a second wheel (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543154.XU CN211000773U (en) | 2019-09-17 | 2019-09-17 | Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543154.XU CN211000773U (en) | 2019-09-17 | 2019-09-17 | Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge |
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| Publication Number | Publication Date |
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| CN211000773U true CN211000773U (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921543154.XU Active CN211000773U (en) | 2019-09-17 | 2019-09-17 | Double-motor single-speed two-stage deceleration strip wheel-side deceleration independent suspension parallel-shaft electric drive bridge |
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| CN (1) | CN211000773U (en) |
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- 2019-09-17 CN CN201921543154.XU patent/CN211000773U/en active Active
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