CN210733712U

CN210733712U - Independent suspension electric drive axle with double motors and single-speed parallel shafts

Info

Publication number: CN210733712U
Application number: CN201921543193.XU
Authority: CN
Inventors: 高德安; 田贵文; 孙彩霞; 吴锐丽; 谢忠军
Original assignee: Dongfeng Dana Axle Co Ltd
Current assignee: Dongfeng Dana Axle Co Ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-12
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a name is independent electric drive axle that hangs of two motor single-speed parallel shafts. Belongs to the technical field of automobile manufacturing. The electric drive axle mainly solves the problems that the existing electric drive axle occupies the structural arrangement space of the chassis and influences the arrangement quantity of batteries. It is mainly characterized in that: the device comprises a first motor, a second motor, a gear box, a transmission shaft assembly, an independent suspension system, a first wheel and a second wheel; the first motor and the second motor are respectively arranged on two sides of the gear box; the gear box comprises a reducer assembly, wherein the reducer assembly comprises a primary driving gear and a secondary driving gear which are meshed with each other; the motor shafts of the first motor and the second motor are parallel to the transmission shaft of the transmission shaft assembly. The utility model has the characteristics of occupy chassis structural arrangement space less relatively, do not influence the battery and arrange quantity, the high-efficient workspace of motor wide, energy utilization is high, the vehicle is long in the journey of continuing to go and can compromise whole car dynamic property and economic nature, the independent electric drive axle that hangs of mainly used single-speed parallel shaft.

Description

Independent suspension electric drive axle with double motors and single-speed parallel shafts

Technical Field

The utility model belongs to the technical field of the automobile manufacturing. In particular to an independent suspension electric drive axle with double motors and single-speed parallel shafts.

Background

The rapid development of the automobile industry and the increasing demand of people for automobiles drive the continuous increase of the automobile output and the automobile holding capacity, thereby aggravating the energy problems and the environmental problems which are generally concerned by people at present. The pure electric vehicle has the characteristics of low noise, no pollution, diversified energy sources and high energy efficiency, and is an important way for solving the vehicle problem in urbanization.

At present, in an independent suspension electric drive axle with a single-speed parallel shaft, an automobile manufacturer uses a drive motor, and in order to meet the requirement of dynamic property, the volume and the mass of the motor are large, so that the motor not only occupies a large chassis structure arrangement space, but also influences the arrangement quantity of batteries; the maximum rotating speed of the motor is generally low, the efficient working area of the motor is narrow, the energy utilization rate is low, the driving range of the vehicle is short, and the dynamic property and the economical efficiency of the whole vehicle are hardly considered.

Disclosure of Invention

In order to overcome the prior art not enough, the utility model provides a two quick parallel axles of motor list independently hang electric drive axle.

In order to achieve the above object, the utility model adopts the following technical solutions: the utility model provides a two quick parallel shaft's of motor list independent suspension electric drive axle, includes first motor, gear box, transmission shaft assembly, first wheel and second wheel, and the gear box contains the reduction gear assembly, and one side at the gear box is installed to first motor, its characterized in that: the reducer assembly comprises a primary driving gear and a primary driven gear which are meshed with each other, and a secondary driving gear and a secondary driven gear which are meshed with each other; the suspension system further comprises a second motor and an independent suspension system, wherein the second motor is arranged on the other side of the gear box; the motor shafts of the first motor and the second motor are parallel to the transmission shaft of the transmission shaft assembly.

The utility model discloses among the technical solution the output of first motor and second motor respectively with the spline meshing of one-level driving gear.

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 utility model discloses among the technical solution: the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft, and two ends of the differential are connected with the half shaft.

The independent suspension system in the technical proposal of the utility model comprises a cylinder type shock absorber and a spiral spring which are respectively arranged at the inner sides of a first wheel and a second wheel; the upper end of the cylinder type shock absorber is connected with the vehicle body, and the lower end of the cylinder type shock absorber is connected with the vehicle axle.

The first motor and the second motor in the technical solution of the utility model are driving motors with the same model; the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft, and two ends of the differential are connected with the half shaft; the independent suspension system comprises a cylinder type shock absorber and a spiral spring which are respectively arranged on the inner sides of the first wheel and the second wheel; the upper end of the cylinder type shock absorber is connected with the vehicle body, and the lower end of the cylinder type shock absorber is connected with the vehicle axle.

The utility model discloses based on current electric drive axle, adopt dual drive motor parallel arrangement to provide power, motor output torque passes through reduction gear, semi-axis and transmits the wheel, and volume and quality that this kind of structure was arranged and can be reduced single motor, and the space utilization is more reasonable, reduces the shared space of axle, increases the battery capacity in carriage, and the highest rotational speed of small motor is higher, and high-efficient interval is wide, has promoted whole car efficiency, has increased the vehicle and has continued to go the mileage. The independent suspension system design reduces the inclination and vibration of the automobile body, and improves the driving stability and comfort of the automobile.

The utility model has the characteristics of occupy that chassis structure arrangement space is less relatively, do not influence the battery and arrange quantity, the high-efficient workspace of motor is wide, energy utilization is high, the vehicle is extended to the mileage and can compromise whole car dynamic nature and economic nature. The utility model discloses the independent electric drive axle that hangs of the single fast parallel axis of mainly used.

Drawings

Fig. 1 is a schematic structural diagram of the electric drive axle assembly of the present invention.

The names corresponding to the sequence numbers in the figure are as follows: the device comprises a first motor 1, a second motor 2, a primary driving gear 3, a primary driven gear 4, a secondary driving gear 5, a secondary driving gear 6, a half shaft 7, a first wheel 8 and a second wheel 9; the independent suspension system 10; a tube type shock absorber 101; a coil spring 102.

Detailed Description

As shown in fig. 1, the present invention relates to an independent suspension electric drive axle of dual-motor single-speed parallel shaft, which comprises a first motor 1, a second motor 2, a gear box, a differential (not shown), a transmission shaft assembly, an independent suspension system 10, a first wheel 8 and a second wheel 9. Wherein, first motor 1 installs in one side of gear box, and second motor 2 installs in the opposite side of gear box, and the output of first motor 1 and second motor 2 meshes with the spline of one-level driving gear 3 respectively. The first motor 1 and the second motor 2 are driving motors with the same model, and the sum of the power of the first motor 1 and the power of the second motor 2 is equal to the power of the existing single motor, so that the size and the mass of the first motor 1 and the second motor 2 can be relatively small, the chassis structure space is convenient to arrange in a balanced manner, and the arrangement quantity of batteries is not influenced. The first motor 1 and the second motor 2 may be different types of driving motors. The gearbox contains a speed reducer assembly comprising a meshed primary drive gear 3 and primary driven gear 4, and a meshed secondary drive gear 5 and secondary driven gear 6. The transmission shaft assembly comprises a differential mechanism, wherein two ends of the differential mechanism are connected with one end of a half shaft 7. The motor shafts of the first motor 1 and the second motor 2 are parallel to the half shaft 7. The independent suspension system 10 is constituted by a tube damper 101 and a coil spring 102, etc., which are provided inside the first wheel 8 and the second wheel 9, respectively, and the tube damper 101 is connected to the vehicle body at the upper end and to the axle at the lower end.

First motor 1, second motor 2 arranges respectively in the both sides of one-level driving gear 3, first motor 1, second motor 2 output torque transmits one-level driving gear 3 through splined connection, one-level driving gear 3 passes through gear engagement and transmits one-level driven gear 4 with power, one-level driven gear 4 transmits second grade driving gear 5 through splined connection, second grade driving gear 5 transmits second grade driven gear 6 through gear engagement, second grade drive gear 6 passes through differential mechanism and transmits power for semi-axis 7, then input first wheel 8 respectively, second wheel 9.

The cylinder type shock absorber 101 of the independent suspension system 10 is connected with the vehicle body at the upper end, is connected with the vehicle axle at the lower end, and is elastically connected with the front part of the vehicle axle and the vehicle body through the spiral spring 102, so that the impact caused by uneven road surfaces is relieved.

The utility model has the advantages as follows: the design of double motors is adopted, so that the high-efficiency area of the motor is wider, and the use is more excellent; 2. each motor has small volume and more reasonable arrangement, and the space of the chassis is saved; 3. the double motors are symmetrically arranged on two sides of the gear box, so that the problem of motor offset is solved, and the driving comfort of the vehicle is improved; 4. the independent suspension design reduces the inclination and vibration of the vehicle body.

Claims

1. The utility model provides a two quick parallel axle's of motor list independent suspension electric drive axle, includes first motor (1), gear box, transmission shaft assembly, first wheel (8) and second wheel (9), and the gear box contains the reduction gear assembly, and one side at the gear box is installed in first motor (1), its characterized in that: the reducer assembly comprises a primary driving gear (3) and a primary driven gear (4) which are meshed with each other, and a secondary driving gear (5) and a secondary driven gear (6) which are meshed with each other; the gearbox also comprises a second motor (2) and an independent suspension system (10), wherein the second motor (2) is arranged on the other side of the gearbox; the motor shafts of the first motor (1) and the second motor (2) are parallel to the transmission shaft of the transmission shaft assembly.

2. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1, characterized in that: the output ends of the first motor (1) and the second motor (2) are respectively meshed with the spline of the first-stage driving gear (3).

3. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the first motor (1) and the second motor (2) are driving motors with the same type or different types.

4. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft (7), and two ends of the differential are connected with the half shaft (7).

5. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the independent suspension system (10) comprises a cylinder type shock absorber (101) and a spiral spring (102) which are respectively arranged on the inner sides of the first wheel (8) and the second wheel (9); the upper end of the cylinder type shock absorber (101) is connected with a vehicle body, and the lower end of the cylinder type shock absorber is connected with a vehicle axle.

6. The dual-motor single-speed parallel-axle independent suspension electric drive axle of claim 1 or 2, characterized in that: the first motor (1) and the second motor (2) are driving motors with the same model; the device also comprises a differential mechanism; the transmission shaft assembly comprises a half shaft (7), and two ends of the differential are connected with the half shaft (7); the independent suspension system (10) comprises a cylinder type shock absorber (101) and a spiral spring (102) which are respectively arranged on the inner sides of the first wheel (8) and the second wheel (9); the upper end of the cylinder type shock absorber (101) is connected with a vehicle body, and the lower end of the cylinder type shock absorber is connected with a vehicle axle.