CN214112204U

CN214112204U - Vehicle driving system and vehicle

Info

Publication number: CN214112204U
Application number: CN202022792862.6U
Authority: CN
Inventors: 杨冬生; 陆国祥; 杨胜麟; 朱新明; 柯政廷
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-09-03
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a vehicle driving system, include: a first power unit; a second power unit; the power input end of the first transmission mechanism is in transmission connection with the first power unit, the first power output end of the first transmission mechanism is in transmission connection with the first propeller, and the second power output end of the first transmission mechanism is in transmission connection with the first wheel; and the power input end of the second transmission mechanism is in transmission connection with the second power unit, the first power output end of the second transmission mechanism is in transmission connection with the second propeller, and the second power output end of the second transmission mechanism is in transmission connection with the second wheel. The vehicle driving system not only can realize the running and steering of the vehicle in water, but also has simple structure and low cost.

Description

Vehicle driving system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a vehicle driving system and vehicle.

Background

With the development of social economy, the living standard of people is continuously improved, in holidays, many people like driving to go out of the country, and in the process of driving out of the country, the people may encounter the situation that wading or floating water is needed and need the vehicle to have a certain function of wading or floating water.

The prior art has a vehicle, and this vehicle is equipped with two screws, drives two screws through two motors respectively and rotates to realize that the vehicle traveles in aqueous and turns to. In order to realize the running and steering of the vehicle in water, two independent motors are additionally arranged on the existing driving system, the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a vehicle driving system, which not only can realize the running and steering of the vehicle in water, but also does not need to add a separate power unit, and has simple structure and low cost.

The utility model discloses a vehicle driving system, include: a first power unit; a second power unit; the power input end of the first transmission mechanism is in transmission connection with the first power unit, the first power output end of the first transmission mechanism is in transmission connection with the first propeller, and the second power output end of the first transmission mechanism is in transmission connection with the first wheel; and the power input end of the second transmission mechanism is in transmission connection with the second power unit, the first power output end of the second transmission mechanism is in transmission connection with the second propeller, and the second power output end of the second transmission mechanism is in transmission connection with the second wheel.

Further, the first transmission mechanism comprises a first reduction gear set and a first shunt assembly, the first shunt assembly comprises a first bevel gear and a second bevel gear which are meshed with each other, the input end of the first reduction gear set is in transmission connection with the first power unit, the output end of the first reduction gear set is in transmission connection with the first bevel gear, the first bevel gear is used for transmission connection with the first wheel, and the second bevel gear is used for transmission connection with the first propeller; the second transmission mechanism comprises a second reduction gear set and a second shunt assembly, the second shunt assembly comprises a third bevel gear and a fourth bevel gear which are meshed with each other, the input end of the second reduction gear set is in transmission connection with the second power unit, the output end of the second reduction gear set is in transmission connection with the third bevel gear, the third bevel gear is used for being in transmission connection with the second wheel, and the fourth bevel gear is used for being in transmission connection with the second propeller.

Further, the first power unit and the second power unit are arranged between the first transmission mechanism and the second transmission mechanism, the first power unit and the second power unit are arranged along the radial direction of the first power unit, and output shafts of the first power unit and the second power unit are parallel.

Further, the first reduction gear set includes a first gear, a second gear, a third gear and a fourth gear, the first gear is in transmission connection with the output shaft of the first power unit, the first gear is meshed with the second gear, the second gear and the third gear are installed together in a synchronous rotation manner, the third gear is meshed with the fourth gear, and the fourth gear and the first bevel gear are installed together in a synchronous rotation manner.

Furthermore, the number of teeth of the first gear is smaller than that of the second gear, and the number of teeth of the third gear is smaller than that of teeth of the fourth gear.

Further, the rotation axes of the second gear and the third gear coincide, the fourth gear coincides with the rotation axis of the first bevel gear, and the axis of the output shaft of the first power unit, the rotation axis of the second gear and the rotation axis of the fourth gear are parallel.

Further, the first transmission mechanism further comprises a first housing, the first gear, the second gear, the third gear, the fourth gear, the first bevel gear and the second bevel gear are all located in the first housing, the first reduction gear set further comprises a first rotating shaft and a second rotating shaft, the first shunt assembly further comprises a third rotating shaft, a fourth rotating shaft and a first half shaft, the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are rotatably mounted on the first housing, the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other, the fourth rotating shaft and the third rotating shaft are perpendicular to each other, the first rotating shaft is in transmission connection with an output shaft of the first power unit, the first gear is fixedly mounted on the first rotating shaft, the second gear and the third gear are fixedly mounted on the second rotating shaft side by side, the fourth gear and the first bevel gear are fixedly mounted on the third rotating shaft side by side, the two ends of the fourth rotating shaft are respectively located inside and outside the first shell, the second bevel gear is fixedly installed at the end part, located in the first shell, of the fourth rotating shaft, the end part, located outside the first shell, of the fourth rotating shaft is used for fixedly installing the first propeller, one end of the first half shaft is used for being in transmission connection with the first wheel, and the other end of the first half shaft is in transmission connection with the third rotating shaft.

Further, the second reduction gear set includes a fifth gear, a sixth gear, a seventh gear and an eighth gear, the fifth gear is in transmission connection with the output shaft of the second power unit, the fifth gear is meshed with the sixth gear, the sixth gear and the seventh gear are installed together in a synchronous rotation manner, the seventh gear is meshed with the eighth gear, the eighth gear and the third bevel gear are installed together in a synchronous rotation manner, and the fourth gear and the rotation axis of the eighth gear coincide.

Further, the number of teeth of the fifth gear is smaller than that of the sixth gear, and the number of teeth of the seventh gear is smaller than that of the eighth gear.

Further, the rotation axes of the sixth gear and the seventh gear coincide, the rotation axis of the eighth gear and the third bevel gear coincide, and the axis of the output shaft of the second power unit, the rotation axis of the sixth gear and the rotation axis of the eighth gear are parallel.

Further, the second transmission mechanism further includes a second housing, the fifth gear, the sixth gear, the seventh gear, the eighth gear, the third bevel gear and the fourth bevel gear are all located in the second housing, the second reduction gear set further includes a fifth rotating shaft and a sixth rotating shaft, the second flow-dividing assembly further includes a seventh rotating shaft, an eighth rotating shaft and a second half shaft, the fifth rotating shaft, the sixth rotating shaft, the seventh rotating shaft and the eighth rotating shaft are rotatably mounted on the second housing, the fifth rotating shaft, the sixth rotating shaft and the seventh rotating shaft are parallel to each other, the eighth rotating shaft and the seventh rotating shaft are perpendicular to each other, the fifth rotating shaft is in transmission connection with the output shaft of the second power unit, the fifth gear is fixedly mounted on the fifth rotating shaft, the sixth gear and the seventh gear are fixedly mounted on the sixth rotating shaft side by side, the eighth gear and the third bevel gear are fixedly mounted on the seventh rotating shaft side by side, the two ends of the eighth rotating shaft are respectively located inside and outside the second shell, the fourth bevel gear is fixedly installed at the end part, located in the second shell, of the eighth rotating shaft, the end part, located outside the second shell, of the eighth rotating shaft is used for fixedly installing the second propeller, one end of the second half shaft is used for being in transmission connection with the second wheel, and the other end of the second half shaft is in transmission connection with the seventh rotating shaft.

Further, the first power unit and the second power unit are both motors.

The utility model also provides a vehicle, include: the vehicle driving system comprises a first propeller, a second propeller, a first wheel, a second wheel and the vehicle driving system, wherein the first propeller is in transmission connection with a first power output end of a first transmission mechanism, the second propeller is in transmission connection with a first power output end of a second transmission mechanism, the first wheel is in transmission connection with a second power output end of the first transmission mechanism, and the second wheel is in transmission connection with a second power output end of the second transmission mechanism.

Further, the axis of the first propeller is parallel to the axis of the second propeller, the axis of the first wheel coincides with the axis of the second wheel, the axis of the first propeller is perpendicular to the axis of the first wheel, and the axis of the second propeller is perpendicular to the axis of the second wheel.

Has the advantages that:

the utility model discloses a vehicle driving system, first screw can be driven through first drive mechanism by first power pack, and the second screw can be driven through second drive mechanism by second power pack, but two screws individual drive, and then realize going and turning to of vehicle in aqueous. In addition, the first power unit can drive the first wheels through the first transmission mechanism, the second power unit can drive the second wheels through the second transmission mechanism, namely the propeller and the wheels share the power unit and the transmission mechanism, the propeller is not required to be provided with an independent power unit and transmission mechanism, and the propeller driving device is simple in structure, low in cost and convenient to control.

The utility model discloses a vehicle, on can realizing land traveling and the basis that the aquatic was gone, simple structure, it is with low costs, convenient control moreover.

Drawings

FIG. 1 is a schematic view of a vehicle drive system according to an embodiment of the present invention;

fig. 2 is a schematic view of a vehicle according to an embodiment of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A vehicle drive system 1000 and a vehicle 10000 according to an embodiment of the present invention are described below with reference to fig. 1 and 2.

The utility model discloses a vehicle actuating system 1000 of an embodiment, include: a first power unit 100; a second power unit 200; the power input end of the first transmission mechanism is in transmission connection with the first power unit 100, the first power output end of the first transmission mechanism is used for being in transmission connection with the first propeller 300, and the second power output end of the first transmission mechanism is used for being in transmission connection with the first wheel 700 of the vehicle; and a power input end of the second transmission mechanism is in transmission connection with the second power unit 200, a first power output end of the second transmission mechanism is in transmission connection with the second propeller 400, and a second power output end of the second transmission mechanism is in transmission connection with the second wheel 800 of the vehicle.

The embodiment of the present invention provides an embodiment, the first propeller 300 can be driven by the first power unit 100 through the first transmission mechanism, the second propeller 400 can be driven by the second power unit 200 through the second transmission mechanism, and the two propellers can be driven separately, so as to realize the driving and steering of the vehicle in water. Specifically, to make the vehicle go straight in water, the two propellers can be rotated at the same rotating speed in the same direction, to make the vehicle turn in water, the rotating speeds of the two propellers can be different, or one propeller is stopped, or the two propellers are rotated in opposite directions (namely, the rotating directions are opposite), and the turning of the vehicle in water is realized through the matching of the two propellers.

The embodiment of the utility model provides an in, first screw 300 and first wheel 700 sharing first power unit 100 and first drive mechanism, second screw 400 and second wheel 800 sharing second power unit 200 and second drive mechanism through the sharing, need not set up solitary drive arrangement for two screws, have simplified the structure, have made things convenient for control, and the holistic compact structure of vehicle driving system 1000 moreover, the convenience is arranged on the vehicle.

In one embodiment, the first transmission mechanism comprises a first reduction gear set and a first splitter assembly, the first splitter assembly comprises a first bevel gear 501 and a second bevel gear 502 which are meshed with each other, an input end of the first reduction gear set is in transmission connection with the first power unit 100, an output end of the first reduction gear set is in transmission connection with the first bevel gear 501, the first bevel gear 501 is used for transmission connection with the first wheel 700, and the second bevel gear 502 is used for transmission connection with the first propeller 300. The first shunting assembly is not limited to the above-mentioned structure, and may be other structures capable of realizing power shunting, such as a combination of a main gear and two sub-gears, or a planetary gear mechanism.

The second transmission mechanism comprises a second reduction gear set and a second shunt assembly, the second shunt assembly comprises a third bevel gear 601 and a fourth bevel gear 602 which are meshed with each other, the input end of the second reduction gear set is in transmission connection with the second power unit 200, the output end of the second reduction gear set is in transmission connection with the third bevel gear 601, the third bevel gear 601 is used for being in transmission connection with the second wheel 800, and the fourth bevel gear 602 is used for being in transmission connection with the second propeller 400. The second shunting assembly is not limited to the above-mentioned structure, and may be other structures capable of realizing power shunting, such as a combination of a main gear and two sub-gears, or a planetary gear mechanism, etc.

By providing the first and second splitter assemblies, power of the first power unit 100 may be split to the first propeller 300 and the first wheel 700, and power of the second power unit 200 may be split to the second propeller 400 and the second wheel 800.

The first wheel 700 and the second wheel 800 may be a front left wheel and a front right wheel of the vehicle, and the first wheel 700 and the second wheel 800 may also be a rear left wheel and a rear right wheel of the vehicle, i.e. the first wheel 700 and the second wheel 800 may be only the front wheels of the vehicle at the same time, or the rear wheels of the vehicle at the same time.

In one embodiment, the first power unit 100 and the second power unit 200 are disposed between the first transmission mechanism and the second transmission mechanism, the first power unit 100 and the second power unit 200 are arranged along a radial direction of the first power unit 100 and output shafts of the two are parallel, the radial direction of the first power unit 100 refers to a direction perpendicular to an axial direction of the output shaft of the first power unit 100, and the first power unit 100 and the second power unit 200 are overlapped or partially overlapped as viewed from the radial direction of the first power unit 100. With the above arrangement, the volume of the entire vehicle drive system 1000, in particular, the axial length of the vehicle drive system 1000 can be reduced.

In one embodiment, the first reduction gear set includes a first gear 503, a second gear 504, a third gear 505, and a fourth gear 506, the first gear 503 is in driving connection with the output shaft of the first power unit 100, the second gear 504 and the third gear 505 are synchronously rotatably mounted together, the fourth gear 506 is synchronously rotatably mounted with the first bevel gear 501, the first gear 503 is engaged with the second gear 504, and the third gear 505 is engaged with the fourth gear 506.

The second reduction gear set comprises a fifth gear 603, a sixth gear 604, a seventh gear 605 and an eighth gear 606, the fifth gear 603 is in transmission connection with the output shaft of the second power unit 200, the sixth gear 604 and the seventh gear 605 are mounted together in a synchronously rotatable manner, the eighth gear 606 and the third bevel gear 601 are mounted together in a synchronously rotatable manner, the fifth gear 603 is in mesh with the sixth gear 604, and the seventh gear 605 and the eighth gear 606 are in mesh. That is, the first reduction gear set and the second reduction gear set have similar structures, so that the structure can be simplified and the control is convenient.

In one embodiment, the number of teeth of the first gear 503 is smaller than the number of teeth of the second gear 504, and the number of teeth of the third gear 505 is smaller than the number of teeth of the fourth gear 506; the number of teeth of the fifth gear 603 is smaller than that of the sixth gear 604, and the number of teeth of the seventh gear 605 is smaller than that of the eighth gear 606. Generally, the larger the number of teeth of the gear, the larger the diameter of the gear, i.e. the larger the gear; the smaller the number of teeth of the gear, the smaller the diameter of the gear, i.e. the smaller the gear. The embodiment of the utility model provides an in, through the cooperation of a plurality of gear wheels and pinion, not only can realize slowing down, can further save space moreover, make whole vehicle actuating system 1000's structure compacter, reduce the volume.

In one embodiment, the rotation axes of the second gear 504 and the third gear 505 coincide, the fourth gear 506 coincides with the rotation axis of the first bevel gear 501, and the axis of the output shaft of the first power unit 100, the rotation axis of the second gear 504, and the rotation axis of the fourth gear 506 are parallel. That is, the first gear 503, the second gear 504, the third gear 505, and the fourth gear 506 are arranged in parallel on one side of the first power unit 100 and the second power unit 200 to reduce the volume of the vehicle drive system 1000. The axes of rotation of the sixth gear 604 and the seventh gear 605 coincide, the axis of rotation of the eighth gear 606 and the third bevel gear 601 coincide, and the axis of the output shaft of the second power unit 200, the axis of rotation of the sixth gear 604 and the axis of rotation of the eighth gear 606 are parallel. That is, a fifth gear 603, a sixth gear 604, a seventh gear 605 and an eighth gear 606 are arranged in parallel on the other side of the first power unit 100 and the second power unit 200 to reduce the volume of the vehicle drive system 1000.

In one embodiment, the first transmission mechanism includes a first housing 507, the first reduction gear set further includes a first rotating shaft 508 and a second rotating shaft 509, the first splitter assembly further includes a third rotating shaft 510, a fourth rotating shaft 511 and a first half shaft 512, the first rotating shaft 508 is rotatably mounted on the first housing 507 through a bearing, the first rotating shaft 508 and the output shaft of the first power unit 100 are coupled together through a coupling and can rotate synchronously, the first gear 503 is fixedly mounted on the first rotating shaft 508, the second gear 504 and the third gear 505 are fixedly mounted on the second rotating shaft 509 side by side, the second rotating shaft 509 is rotatably mounted on the first housing 507 through a bearing, the third rotating shaft 510 is rotatably mounted on the first housing 507 through a bearing, the fourth gear 506 and the first bevel gear 501 are fixedly mounted on the third rotating shaft 510 side by side, the fourth rotating shaft 511 is rotatably mounted on the first housing 507 through a bearing, two ends of the fourth rotating shaft 511 are respectively located inside and outside the first housing 507, the second bevel gear 502 is fixedly mounted at the end of the fourth rotating shaft 511 located inside the first housing 507, the end of the fourth rotating shaft 511 located outside the first housing 507 is used for fixedly mounting the first propeller 300, one end of the first half shaft 512 is used for being in transmission connection with the first wheel 700, and the other end of the first half shaft 512 is in transmission connection with the third rotating shaft 510. The first gear 503, the second gear 504, the third gear 505, the fourth gear 506, the first bevel gear 501 and the second bevel gear 502 are all located in the first housing 507, the first rotating shaft 508, the second rotating shaft 509 and the third rotating shaft 510 are parallel to each other, and the fourth rotating shaft 511 and the third rotating shaft 510 are perpendicular to each other.

In one embodiment, the second transmission mechanism includes a second housing 607, the second reduction gear set further includes a fifth rotating shaft 608 and a sixth rotating shaft 609, the second splitter assembly further includes a seventh rotating shaft 610, an eighth rotating shaft 611 and a second half shaft 612, the fifth rotating shaft 608 is rotatably mounted on the second housing 607 through a bearing, the fifth rotating shaft 608 and the output shaft of the second power unit 200 are connected together through a coupling and can rotate synchronously, the fifth gear 603 is fixedly mounted on the fifth rotating shaft 608, the sixth gear 604 and the seventh gear 605 are fixedly mounted on the sixth rotating shaft 609 side by side, the sixth rotating shaft 609 is rotatably mounted on the second housing 607 through a bearing, the seventh rotating shaft 610 is rotatably mounted on the second housing 607 through a bearing, the eighth gear 606 and the third bevel gear 601 are fixedly mounted on the seventh rotating shaft 610 side by side, the eighth rotating shaft 611 is rotatably mounted on the second housing 607 through a bearing, both ends of the eighth rotating shaft 611 are respectively located inside and outside the second housing 607, the fourth bevel gear 602 is fixedly mounted at the end of the eighth rotating shaft 611 located inside the second housing 607, the end of the eighth rotating shaft 611 located outside the second housing 607 is used for fixedly mounting the second propeller 400, one end of the second half shaft 612 is used for being in transmission connection with the second wheel 800, and the other end of the second half shaft 612 is in transmission connection with the seventh rotating shaft 610. The fifth gear 603, the sixth gear 604, the seventh gear 605, the eighth gear 606, the third bevel gear 601 and the fourth bevel gear 602 are all located in the second housing 607, the fifth rotating shaft 608, the sixth rotating shaft 609 and the seventh rotating shaft 610 are parallel to each other, and the eighth rotating shaft 611 and the seventh rotating shaft 610 are perpendicular to each other.

The first propeller 300 and the second propeller 400 may be detached when the vehicle is normally driven on a road, so as to prevent the propellers from being damaged. When the vehicle needs to travel in water, the first and

second propellers

300 and 400 may be mounted to the fourth and eighth rotating

shafts

511 and 611, respectively, to achieve travel and steering in water.

The first power unit 100 may employ an internal combustion engine, an electric motor, or other power unit, and the second power unit 200 may employ an internal combustion engine, an electric motor, or other power unit. In one embodiment, first power unit 100 and second power unit 200 are each electric motors. The rotating speed of the motor can be accurately controlled, so that the rotating speeds of the first propeller 300 and the second propeller 400 can be accurately controlled, the steering of the vehicle in water is realized through the rotating speed difference of the two propellers, and the more accurate the rotating speed control of the propellers is, the more accurate the rotating speed difference is, and the better the steering effect is.

The embodiment of the utility model provides an in, the transmission is connected can be realized through multiple mode, as long as can realize the transmission can, for example two parts directly link to each other, perhaps link to each other through the shaft coupling between two parts, perhaps link to each other through the universal joint between two parts, the utility model discloses do not limit to the concrete mode that the transmission is connected.

In the embodiment of the present invention, the power input end of the first transmission mechanism may be a component or a part of a component, such as the first gear 503, the first rotating shaft 508 or the end of the first rotating shaft 508, but not limited to these. The first power output end of the first transmission mechanism may be a component or a part of a component, such as the fourth rotating shaft 511 or an end of the fourth rotating shaft 511, but is not limited to the above. The second power output of the first transmission mechanism may be a member or a portion of a member, such as, but not limited to, the first half shaft 512 or the end of the first half shaft 512.

Similarly, the power input end of the second transmission mechanism, the first power output end of the second transmission mechanism, and the second power output end of the second transmission mechanism may be one component or a part of one component, for example, the power input end of the second transmission mechanism may be the end of the fifth gear 603, the fifth rotating shaft 608, or the fifth rotating shaft 608, the first power output end of the second transmission mechanism may be the end of the eighth rotating shaft 611 or the eighth rotating shaft 611, and the second power output end of the second transmission mechanism may be the end of the second half shaft 612 or the second half shaft 612, but is not limited thereto.

Similarly, the input end of the first reduction gear set, the output end of the first reduction gear set, the input end of the second reduction gear set, and the output end of the second reduction gear set may be one component or a part of one component, for example, the input end of the first reduction gear set may be, for example, the end of the first gear 503, the first rotating shaft 508, or the first rotating shaft 508, the output end of the first reduction gear set may be the fourth gear 506, the input end of the second reduction gear set may be, for example, the end of the fifth gear 603, the fifth rotating shaft 608, or the fifth rotating shaft 608, and the output end of the second reduction gear set may be, for example, the eighth gear 606, but is not limited to these.

The utility model discloses a vehicle 10000 of an embodiment, include: the first propeller 300 is in transmission connection with a first power output end of a first transmission mechanism, the second propeller 400 is in transmission connection with a first power output end of a second transmission mechanism, the first wheel 700 is in transmission connection with a second power output end of the first transmission mechanism, the second wheel 800 is in transmission connection with a second power output end of the second transmission mechanism, and the specific connection mode and connection position are as described above.

The axis of the first wheel 700 coincides with the axis of the second wheel 800, the axis of the first propeller 300 is perpendicular to the axis of the first wheel 700, the axis of the second propeller 400 is perpendicular to the axis of the second wheel 800, the axis of the first propeller 300 is parallel to the axis of the second propeller 400, and the two propellers are arranged in parallel side by side, so that the directions of thrust generated by the two propellers are consistent, and the two propellers jointly push the vehicle to advance in water.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the terms "mounting," "connecting," "setting," "communicating," and the like are to be understood in a broad sense, and may be direct mounting, connecting, setting, or communicating, or indirect mounting, connecting, setting, or communicating. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle drive system, comprising:

a first power unit;

a second power unit;

the power input end of the first transmission mechanism is in transmission connection with the first power unit, the first power output end of the first transmission mechanism is in transmission connection with the first propeller, and the second power output end of the first transmission mechanism is in transmission connection with the first wheel;

and the power input end of the second transmission mechanism is in transmission connection with the second power unit, the first power output end of the second transmission mechanism is in transmission connection with the second propeller, and the second power output end of the second transmission mechanism is in transmission connection with the second wheel.

2. The vehicle drive system of claim 1, wherein the first transmission comprises a first reduction gear set and a first splitter assembly, the first splitter assembly comprising a first bevel gear and a second bevel gear that intermesh, an input of the first reduction gear set being in driving connection with the first power unit, an output of the first reduction gear set being in driving connection with the first bevel gear, the first bevel gear being for driving connection with the first wheel, the second bevel gear being for driving connection with the first propeller;

the second transmission mechanism comprises a second reduction gear set and a second shunt assembly, the second shunt assembly comprises a third bevel gear and a fourth bevel gear which are meshed with each other, the input end of the second reduction gear set is in transmission connection with the second power unit, the output end of the second reduction gear set is in transmission connection with the third bevel gear, the third bevel gear is used for being in transmission connection with the second wheel, and the fourth bevel gear is used for being in transmission connection with the second propeller.

3. The vehicle drive system according to claim 1, wherein the first power unit and the second power unit are disposed between the first transmission mechanism and the second transmission mechanism, the first power unit and the second power unit being arranged in a radial direction of the first power unit with output shafts thereof being parallel.

4. A vehicle drive system according to claim 2, wherein the first reduction gear set comprises a first gear, a second gear, a third gear and a fourth gear, the first gear being in driving connection with the output shaft of the first power unit, the first gear being in meshing engagement with the second gear, the second and third gears being mounted for synchronous rotation, the third gear being in meshing engagement with the fourth gear, the fourth gear being mounted for synchronous rotation with the first bevel gear.

5. The vehicle drive system according to claim 4, characterized in that the number of teeth of the first gear is smaller than the number of teeth of the second gear, and the number of teeth of the third gear is smaller than the number of teeth of the fourth gear.

6. A vehicle drive system according to claim 4, wherein the rotational axes of the second and third gears coincide, the fourth gear coincides with the rotational axis of the first bevel gear, and the axis of the output shaft of the first power unit, the rotational axis of the second gear, and the rotational axis of the fourth gear are parallel.

7. The vehicle drive system of claim 6, wherein the first transmission further comprises a first housing, the first gear, the second gear, the third gear, the fourth gear, the first bevel gear, and the second bevel gear all being located within the first housing,

the first speed reduction gear set further comprises a first rotating shaft and a second rotating shaft, the first shunt assembly further comprises a third rotating shaft, a fourth rotating shaft and a first half shaft, the first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are rotatably arranged on the first shell, the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other, the fourth rotating shaft and the third rotating shaft are mutually vertical,

first pivot with the output shaft transmission of first power unit is connected, first gear fixed mounting be in the first pivot, second gear and third gear fixed mounting side by side in the second pivot, fourth gear and first bevel gear fixed mounting side by side in the third pivot, the both ends of fourth pivot are located respectively inside and outside the first casing, second bevel gear fixed mounting be in the position of fourth pivot the tip in the first casing, be located of fourth pivot the outer tip of first casing is used for fixed mounting first screw, the one end of first semi-axis be used for with first wheel transmission is connected, the other end of first semi-axis with third pivot transmission is connected.

8. A vehicle drive system according to claim 4 wherein the second reduction gear set comprises a fifth gear in driving connection with the output shaft of the second power unit, a sixth gear in mesh with the sixth gear, the sixth and seventh gears being mounted for synchronous rotation, the seventh and eighth gears being in mesh, the eighth gear being mounted for synchronous rotation with a third bevel gear, and an eighth gear having its axis of rotation coincident with the eighth gear.

9. The vehicle drive system according to claim 8, characterized in that the number of teeth of the fifth gear is smaller than the number of teeth of the sixth gear, and the number of teeth of the seventh gear is smaller than the number of teeth of the eighth gear.

10. A vehicle drive system according to claim 8, wherein the rotation axes of the sixth gear and the seventh gear coincide, the rotation axis of the eighth gear coincides with the rotation axis of the third bevel gear, and the axis of the output shaft of the second power unit, the rotation axis of the sixth gear, and the rotation axis of the eighth gear are parallel.

11. The vehicle drive system of claim 10, wherein the second transmission further comprises a second housing, the fifth gear, sixth gear, seventh gear, eighth gear, third bevel gear, and fourth bevel gear each being located within the second housing,

the second reduction gear set further comprises a fifth rotating shaft and a sixth rotating shaft, the second shunt assembly further comprises a seventh rotating shaft, an eighth rotating shaft and a second half shaft, the fifth rotating shaft, the sixth rotating shaft, the seventh rotating shaft and the eighth rotating shaft are rotatably arranged on the second shell, the fifth rotating shaft, the sixth rotating shaft and the seventh rotating shaft are parallel to each other, the eighth rotating shaft and the seventh rotating shaft are perpendicular to each other,

the fifth rotating shaft is in transmission connection with an output shaft of the second power unit, a fifth gear is fixedly mounted on the fifth rotating shaft, a sixth gear and a seventh gear are fixedly mounted on the sixth rotating shaft side by side, an eighth gear and a third bevel gear are fixedly mounted on the seventh rotating shaft side by side, two ends of the eighth rotating shaft are respectively located inside and outside the second shell, a fourth bevel gear is fixedly mounted on the eighth rotating shaft and located at the end part inside the second shell, and the eighth rotating shaft and located at the end part outside the second shell are used for fixed mounting of the second propeller, one end of a second half shaft is used for being in transmission connection with a second wheel, and the other end of the second half shaft is in transmission connection with the seventh rotating shaft.

12. The vehicle drive system of claim 1, wherein the first and second power units are each electric machines.

13. A vehicle, characterized by comprising: a first propeller, a second propeller, a first wheel, a second wheel, and the vehicle drive system of any of claims 1-12, the first propeller being in driving connection with the first power output of the first drive mechanism, the second propeller being in driving connection with the first power output of the second drive mechanism, the first wheel being in driving connection with the second power output of the first drive mechanism, the second wheel being in driving connection with the second power output of the second drive mechanism.

14. The vehicle of claim 13, characterized in that the axis of the first propeller and the axis of the second propeller are parallel, the axis of the first wheel being coincident with the axis of the second wheel, the axis of the first propeller being perpendicular to the axis of the first wheel, the axis of the second propeller being perpendicular to the axis of the second wheel.