CN212373147U

CN212373147U - Double-motor driving device

Info

Publication number: CN212373147U
Application number: CN202020974698.8U
Authority: CN
Inventors: 邱国荣; 张露迪
Original assignee: CRRC Changzhou Co Ltd
Current assignee: CRRC Changzhou Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-01-19
Anticipated expiration: 2030-06-02

Abstract

The utility model relates to a drive arrangement's technical field especially relates to a two motor drive arrangement. The double-motor driving device comprises an I-shaped hub, a first motor and a second motor, wherein the first motor and the second motor are respectively arranged on two sides of the I-shaped hub. The double-motor driving device effectively reduces the accessories such as a brake disc, a brake caliper and the like configured for realizing braking by arranging the double-motor structure, reduces the dead weight, improves the efficiency and saves the cost.

Description

Double-motor driving device

Technical Field

The utility model relates to a drive arrangement especially relates to a two motor drive arrangement.

Background

In the fields of traffic and logistics, a hub motor is being popularized and used. The hub motor omits a large number of transmission parts, so that the vehicle structure is simpler, and various complex driving modes can be realized; and the technology of various new energy vehicles is convenient to adopt, and the like. But also has the defects of increasing unsprung mass and rotational inertia of a hub, influencing the operation and control of a vehicle, having limited electric braking performance, consuming a lot of electric energy for maintaining the operation of a braking system and the like. The structure of the hub motor is substantially the same, and the hub motor comprises a bearing of an electric control assembly, an inverter, a rotor, a stator and the like. Generally, the hub motor requires a large rim, which is more than 18 inches.

Taking the hub motor produced by Protean company as an example, the hub motor has the advantages that:

1. the structure of the vehicle can be greatly simplified by applying the hub motor, and the traditional clutch, the traditional gearbox and the traditional transmission shaft do not exist any more. This also means that more space is saved.

2. The hub motor can be matched with the traditional power to form a hybrid electric vehicle, the motor can be arranged in the traditional rim, and a set of power supply system is additionally arranged to realize the hybrid electric vehicle.

3. Since each tire is individually driven, the four-wheel drive mode is very easy to implement. The wheel hub motor technology can even realize the reversal of wheels at two sides to achieve the purpose of pivot steering. In addition, the hub motor is a very good solution for special vehicles, such as centipede vehicles with an excessive number of wheels.

The disadvantages are as follows:

1. the hub motor is mounted in the rim, which adds to the unsprung mass of the vehicle and is not conducive to handling. Also seen as hub motors from Protean corporation, the mass of a single motor is 30 kg.

2. The eddy current braking capacity is not high, and the heavy-duty vehicle needs to be matched with a mechanical braking system to work together. For an electric vehicle, higher energy needs to be consumed to achieve a higher braking effect, and the endurance mileage is influenced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above defect and providing a double-motor driving device.

In order to overcome the defect that exists among the background art, the utility model provides a technical scheme that its technical problem adopted is: the double-motor driving device comprises an I-shaped hub, a first motor and a second motor, wherein the first motor and the second motor are respectively arranged on two sides of the I-shaped hub.

According to the utility model discloses a another embodiment, further include motor one is equipped with rotor one by the upper and lower end of stator one, stator one and constitutes, and one side of I-shaped wheel hub's wheel hub width of cloth is arranged in to rotor one and stator one.

According to the utility model discloses a another embodiment, further include stator one is connected through stator support one and wheel hub width of cloth board, the junction is equipped with the bearing, still connects end cover one on the stator support one, and the upper and lower end of end cover one passes through coupling bolted connection rotor one.

According to the utility model discloses a another embodiment, further include motor two is equipped with rotor two by stator two, the upper and lower end of stator two and constitutes, and the opposite side of I-shaped wheel hub's wheel hub width of cloth is arranged in to rotor two and stator two.

According to the utility model discloses a further embodiment, further include stator two is connected, the junction is equipped with the bearing through stator support two and wheel hub width of cloth, still connects end cover two on the stator support two, and the upper and lower end of end cover two passes through coupling bolted connection rotor two.

According to another embodiment of the present invention, further comprising the outside mounting connection driving tire of the i-shaped wheel hub.

The utility model has the advantages that: the double-motor driving device effectively reduces the accessories such as a brake disc, a brake caliper and the like configured for realizing braking by arranging the double-motor structure, reduces the dead weight, improves the efficiency and saves the cost.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

wherein: 1. the driving tire 2, the hub 3, the rotor I, the end cover I, the stator 6, the bearing 7, the motor I, the motor 8, the stator support I, the hub web 10, the connecting bolt 11, the connecting bolt 12, the rotor II, the stator 14, the stator support II, the motor 16, the bearing 17 and the end cover II.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The embodiments of the basic utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

The double-motor driving device comprises a driving tire 1, a hub 2, a first rotor 3, a first end cover 4, a first stator 5, a bearing 6, a first motor 7, a first stator support 8, a hub web 9, a connecting bolt 10, a connecting bolt 11, a second rotor 12, a second stator 13, a second stator support 14, a second motor 15, a bearing 16 and a second end cover 17.

As shown in fig. 1, the tire comprises an i-shaped hub 2, a first motor 7 and a second motor 15, wherein the first motor 7 and the second motor 15 are respectively installed on two sides of the i-shaped hub 2, and the driving tire 1 is installed and connected on the outer side of the i-shaped hub 2. The action of the first motor 7 and the second motor 15 is controlled by a connected motor controller, the first motor 7 and the second motor 15 can be driven independently, and the two motors can also be controlled by the controller to be driven cooperatively, and when the motors are driven cooperatively, the maximum driving is achieved cooperatively, which is embodied as: one machine is the main machine and the other machine is cooperated to achieve the optimal driving requirement.

The structure of the I-shaped hub 2 can ensure that the first motor 7 and the second motor 15 are respectively arranged at two sides of the middle web plate of the integral hub 2, and the first motor 7 and the second motor 15 which are arranged at two sides of the middle web plate of the integral hub 2 can be driven by a single machine or a double machine through a controller.

The dual-machine driving can realize that:

1. when the synergies are consistent, the maximum function effect is achieved;

2. one machine is mainly matched with the other machine to cooperatively achieve the optimal required function, and the optimal required function comprises that one machine is used for advancing and the other machine is cooperatively used for braking.

Through the structure, the brake disc, the brake calipers and other accessories are not required to be configured for realizing braking, the dead weight is reduced, the efficiency is improved, and the cost is saved.

Preferred embodiment(s) of the invention

The first motor 7 is composed of a first stator 5, a first rotor 3 is sleeved on the first stator 5, and the first rotor 3 and the first stator 5 are arranged on one side of a hub amplitude plate 9 of the I-shaped hub 2.

The first stator 5 is connected with the hub amplitude plate 9 through a first stator support 8, a bearing 6 is arranged at the joint, the first stator support 8 is further connected with a first end cover 4, and the upper end and the lower end of the first end cover 4 are connected with the first rotor 3 through connecting bolts 10. The first stator 5 and the first rotor 3 are positioned between the hub web 9 and the first end cover 4, and the structure is simple and the maintenance is convenient.

Preferred embodiment(s) of the invention

The second motor 15 is composed of a second stator 13, a second rotor 12 is sleeved on the second stator 13, and the second rotor 12 and the second stator 13 are arranged on the other side of the hub amplitude plate 9 of the I-shaped hub 2.

The second stator 13 is connected with the hub amplitude plate 9 through a second stator support 14, a bearing 16 is arranged at the joint, the second stator support 14 is further connected with a second end cover 17, and the upper end and the lower end of the second end cover 17 are connected with the second rotor 12 through a connecting bolt 11.

Examples

When the driving device is started, the first motor 7 and the second motor 15 realize synchronous work through the controller, the directions are coordinated and consistent, the maximum power and the torque are generated, the friction force is overcome, and the driving effect is achieved to the maximum extent; when the equipment is in a normal driving process, according to different driving requirements and friction, the double motors are divided into a main motor and an auxiliary motor, the main motor is used for driving, and the auxiliary motors are cooperatively matched to achieve the optimal demand function; when the equipment is in emergency or normal parking, the main motor is rapidly decelerated through the controller, and meanwhile the auxiliary motor performs reverse action by turning to the generator principle, so that the whole hub parking is accelerated, and energy is recovered. The brake disc, the brake calipers and other accessories are configured without braking, the dead weight is reduced, the efficiency is improved, and the cost is saved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A kind of dual-motor drive unit, characterized by that: the motor comprises an I-shaped hub (2), a first motor (7) and a second motor (15), wherein the first motor (7) and the second motor (15) are respectively arranged on two sides of the I-shaped hub (2).

2. The dual motor drive apparatus of claim 1, wherein: the motor I (7) is composed of a stator I (5), a rotor I (3) is sleeved on the stator I (5), and the rotor I (3) and the stator I (5) are arranged on one side of a hub amplitude plate (9) of the I-shaped hub (2).

3. The dual motor drive apparatus of claim 2, wherein: the first stator (5) is connected with the hub amplitude plate (9) through a first stator support (8), a bearing (6) is arranged at the joint, the first stator support (8) is further connected with a first end cover (4), and the upper end and the lower end of the first end cover (4) are connected with the first rotor (3) through a connecting bolt (10).

4. The dual motor drive apparatus of claim 1, wherein: the motor II (15) is composed of a stator II (13), a rotor II (12) is sleeved on the stator II (13), and the rotor II (12) and the stator II (13) are arranged on the other side of the hub amplitude plate (9) of the I-shaped hub (2).

5. The dual motor drive apparatus of claim 4, wherein: the second stator (13) is connected with the hub amplitude plate (9) through a second stator support (14), a bearing (16) is arranged at the joint, the second stator support (14) is further connected with a second end cover (17), and the upper end and the lower end of the second end cover (17) are connected with a second rotor (12) through a connecting bolt (11).

6. The dual motor drive apparatus of claim 1, wherein: the outer side of the I-shaped hub (2) is connected with a driving tire (1).