Power driving system and vehicle

Abstract

The utility model discloses a power driving system and a vehicle, and the power driving system comprises a driving part which is connected with an input shaft; the intermediate shaft is in power connection with the input shaft, the differential structure comprises a planet shaft and two differential components, the planet shaft and the intermediate shaft are relatively fixed, a planet wheel is arranged outside the planet shaft, the two differential components are arranged outside the intermediate shaft in an empty sleeving mode and located on the two sides of the planet shaft respectively, and the differential components are meshed with the planet wheel; and the two output shafts are in power connection with the two differential components in a one-to-one correspondence manner. According to the power driving system, the torque borne by the differential part can be reduced, the weight of the power driving system is reduced, miniaturization and light weight of the differential part are facilitated, arrangement of a differential mechanism shell can be omitted, the number and weight of parts are reduced, the differential part is fully lubricated, the amount of lubricating oil is reduced, and oil stirring loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a power drive system and a vehicle with the power drive system. Background Art

[0002] In the existing power drive system, a differential housing must be provided. The differential housing is used to realize power transmission, and each transmission component is installed on the differential housing. The power of the engine is transmitted to the differential housing to make it start running, and then the power of the differential housing is transmitted to the differential component to realize differential. However, the setting of the differential housing makes the power drive system heavy and occupies too much space, and the differential gear cannot be fully lubricated, so there is room for improvement. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a power drive system, which can reduce the torque borne by the differential component, facilitate the miniaturization and light weight of the differential component, thereby reducing the weight of the power drive system, improving the torque and power density of the power drive system, and can cancel the setting of the differential housing, thereby reducing the number and weight of components, enabling the differential component to be fully lubricated, reducing the amount of lubricating oil, and reducing the churning loss.

[0004] The power drive system according to an embodiment of the utility model includes: a driving member, the driving member is connected with an input shaft; an intermediate shaft and a differential structure, the intermediate shaft is in power connection with the input shaft, the differential structure includes a planetary shaft and two differential components, the planetary shaft is relatively fixed to the intermediate shaft, a planetary gear is arranged outside the planetary shaft, the two differential components are both sleeved outside the intermediate shaft and are respectively located on both sides of the planetary shaft, and the differential components are meshed with the planetary gear; two output shafts, the two output shafts are in power connection with the two differential components in a one-to-one correspondence.

[0005] According to the power drive system of the embodiment of the utility model, by arranging the differential component at the intermediate shaft, the torque borne by the differential component can be reduced, which is beneficial to the miniaturization and light weight of the differential component, thereby reducing the weight of the power drive system and improving the torque and power density of the power drive system. By relatively fixing the planetary shaft and the intermediate shaft, the setting of the differential housing can be cancelled, thereby reducing the number and weight of components, and further reducing the weight of the power drive system to realize lightweight design. At the same time, cancelling the differential housing can also expose the contact sliding surfaces of the planetary gear and the differential component in the cavity of the power drive system, which is beneficial to lubrication by the lubricating liquid. Therefore, under the condition of ensuring full lubrication of the differential component, the amount of lubricating oil can be reduced and the churning loss can be reduced.

[0006] According to the power drive system of some embodiments of the present utility model, the differential component includes a side gear and a driving gear, the side gear and the driving gear are coaxially connected and are both sleeved outside the intermediate shaft; wherein, the output shaft is provided with a driven gear, the side gear meshes with the planet gear, and the driving gear meshes with the driven gear.

[0007] According to the power drive system of some embodiments of the present utility model, there are two planet gears, the two planet gears are respectively connected to both ends of the planet shaft, and the two planet gears are respectively located on both sides of the intermediate shaft, and each planet gear meshes with the side gears of the two differential components respectively.

[0008] According to the power drive system of some embodiments of the present utility model, the side gear is formed with a first limiting spherical surface, the planet gear is formed with a second limiting spherical surface, and the first limiting spherical surface and the second limiting spherical surface are in axial limiting cooperation along the planet shaft.

[0009] According to the power drive system of some embodiments of the present utility model, the two output shafts can be selectively power-connected.

[0010] According to the power drive system of some embodiments of the present utility model, the power drive system further includes a clutch structure, the two output shafts are axially distributed opposite to each other, and the clutch structure is located between the two output shafts and is used to selectively power-connect the two output shafts.

[0011] According to the power drive system of some embodiments of the present utility model, the clutch structure includes a first clutch element, a second clutch element and a synchronizing element, the first clutch element is connected to the end of one output shaft, the second clutch element is connected to the end of the other output shaft, and the synchronizing element is movable relative to the output shaft and is used to selectively synchronously connect the first clutch element and the second clutch element.

[0012] According to the power drive system of some embodiments of the present utility model, the driving member is configured as a driving motor, the motor shaft of the driving motor is configured as the input shaft, the input shaft is provided with a motor gear, and the intermediate shaft is further provided with an input gear, and the motor gear meshes with the input gear.

[0013] According to the power drive system of some embodiments of the present utility model, the input shaft, the intermediate shaft and the output shaft are sequentially spaced apart along the longitudinal direction of the vehicle.

[0014] The present utility model also proposes a vehicle.

[0015] According to the vehicle of the embodiments of the present utility model, it is provided with the power drive system of any one of the above embodiments.

[0016] The advantages of the vehicle and the above-described power drive system over the prior art are the same and will not be elaborated here.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic structural diagram of a power drive system according to an embodiment of the present utility model.

[0020] REFERENCE NUMERALS:

[0021] Power drive system 100,

[0022] Drive motor 1, input shaft 12, motor gear 121, intermediate shaft 2, differential structure 3, planetary shaft 31, planetary gear 32, differential component 33, side gear 331, driving gear 332, input gear 34, output shaft 4, driven gear 41, clutch structure 5, first clutch element 51, second clutch element 52, synchronizing element 53. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0024] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] Unless otherwise specified, the front-back direction in this application is the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction is the transverse direction of the vehicle, i.e., the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

[0027] Next, refer to Figure 1 to describe the power drive system 100 according to an embodiment of the present utility model. The power drive system 100 can reduce the torque received by the differential component 33, which is beneficial to the miniaturization and lightweight of the differential component 33, thereby reducing the weight of the power drive system 100, improving the torque and power density of the power drive system 100, and eliminating the need for a differential housing, thereby reducing the number and weight of components, enabling the differential component 33 to be fully lubricated, reducing the amount of lubricating oil, and reducing the churning loss.

[0028] As Figure 1 shown, the power drive system 100 according to an embodiment of the present utility model includes: a driving member, an intermediate shaft 2, a differential structure 3, and two output shafts 4.

[0029] The driving member is used to provide power to drive the entire power drive system 100 to move. The driving member is connected to an input shaft 12, that is, the driving member can drive the output shaft 4 to rotate. When the output shaft 4 rotates, it can drive the intermediate shaft 2 that is power-connected to the input shaft 12 to rotate, thereby transmitting the power of the driving member to the intermediate shaft 2 and the differential structure 3. In practice, both ends of the input shaft 12 can be supported by bearings for rotation.

[0030] The two differential structures 3 are used to transmit the power of the intermediate shaft 2 to the two output shafts 4 at different speeds. Among them, the differential structure 3 includes a planetary shaft 31 and two differential components 33. The planetary shaft 31 is relatively fixed to the intermediate shaft 2, that is, the planetary shaft 31 can be fixed on the intermediate shaft 2. When the intermediate shaft 2 rotates, it can drive the planetary shaft 31 to rotate synchronously. A planetary gear 32 is provided outside the planetary shaft 31, and the differential component 33 meshes with the planetary gear 32. In this way, when the planetary shaft 31 rotates, it can drive the planetary gear 32 to rotate together, and the planetary gear 32 rotates to drive the differential component 33 meshing with it to rotate. Thus, the power transmission from the intermediate shaft 2 to the differential component 33 is realized.

[0031] Among them, both differential components 33 are sleeved on the intermediate shaft 2 and are respectively located on both sides of the planetary shaft 31. That is to say, the two differentials can rotate relative to the intermediate shaft 2, which is conducive to realizing the differential function, and can reduce the friction and resistance between the planetary shaft 31 and the intermediate shaft 2, improving the transmission efficiency. Setting the two differential components 33 at the position of the intermediate shaft 2 can also make the differential components 33 closer to the middle position of the vehicle, which can reduce the torque received by the differential components 33, facilitating the miniaturization and light weight of the differential components 33, thereby reducing the weight of the power drive system 100 and improving the torque and power density of the power drive system 100.

[0032] In practice, since the planetary shaft 31 of this embodiment can be fixedly connected to the intermediate shaft 2, the power drive system 100 can cancel the differential housing, thereby reducing the number and weight of components, and further reducing the weight of the power drive system 100 to achieve a lightweight design. At the same time, canceling the differential housing can expose the contact and sliding surfaces of the planetary gears and the differential components 33 in the cavity of the power drive system 100, which is conducive to lubrication by the lubricating fluid. Thus, under the condition of sufficient lubrication of the differential components 33, the amount of lubricating oil can be reduced and the oil churning loss can be decreased.

[0033] And the two differential components 33 can be respectively connected to the planetary gears 32 on the planetary shaft 31 to transmit the power of the planetary gears 32 to the differential components 33. Through the rotation of the planetary gears 32, the two differential components 33 on both sides of the planetary shaft 31 can rotate at different speeds, and the two output shafts 4 are power-connected to the two differential components 33 one by one, that is, the two differential components 33 can respectively drive the two output shafts 4 to rotate, thereby transmitting the power to the output shafts 4, making the two output shafts 4 rotate at different speeds, and finally realizing the differential function and the output of power.

[0034] According to the power drive system 100 of the embodiment of the present utility model, by arranging the differential components 33 at the intermediate shaft 2, the torque received by the differential components 33 can be reduced, which is conducive to the miniaturization and light weight of the differential components 33, thereby reducing the weight of the power drive system 100 and improving the torque and power density of the power drive system 100. By fixing the planetary shaft 31 relative to the intermediate shaft 2, the setting of the differential housing can be cancelled, thereby reducing the number and weight of components, and further reducing the weight of the power drive system 100 to achieve a lightweight design. At the same time, canceling the differential housing can also expose the contact and sliding surfaces of the planetary gears and the differential components 33 in the cavity of the power drive system 100, which is conducive to lubrication by the lubricating fluid. Thus, under the condition of sufficient lubrication of the differential components 33, the amount of lubricating oil can be reduced and the oil churning loss can be decreased.

[0035] In some embodiments, the differential component 33 includes a side gear 331 and a driving gear 332, such asFigure 1 As shown, the side shaft gear 331 and the driving gear 332 are coaxially connected and are both sleeved on the intermediate shaft 2. That is to say, the side shaft gear 331 can rotate synchronously with the driving gear 332, and the side shaft gear 331 and the driving gear 332 can rotate relative to the intermediate shaft 2, that is, they can rotate relative to the intermediate shaft 2 by self-rotation or revolution, which is beneficial to realizing the differential function. The design of coaxially connecting the side shaft gear 331 and the driving gear 332 can also facilitate the miniaturization and light weight of the differential component 33, making the structure compact and reducing the number of components.

[0036] Among them, the output shaft 4 is provided with a driven gear 41, as Figure 1 shown, the side shaft gear 331 meshes with the planet gear 32, and the driving gear 332 meshes with the driven gear 41. That is, the rotation of the planet shaft 31 can drive the side shaft gear 331 meshing with it to rotate. The rotation of the side shaft gear 331 drives the coaxial driving gear 332 to rotate synchronously. The rotation of the driving gear 332 can drive the driven gear 41 meshing with it to rotate.

[0037] In actual design, the two driven gears 41 and the two output shafts 4 can be connected by splines respectively.

[0038] In some embodiments, there are two planet gears 32. The two planet gears 32 are respectively connected to both ends of the planet shaft 31, and the two planet gears 32 are respectively located on both sides of the intermediate shaft 2. Each planet gear 32 meshes with the side shaft gears 331 of the two differential components 33 respectively.

[0039] Specifically, as Figure 1 shown, the intermediate shaft 2 and the planet shaft 31 are arranged perpendicular to each other. The differential component 33 is arranged coaxially with the intermediate shaft 2. The two planet gears 32 are installed at both ends of the planet shaft 31, so that the two planet gears 32 are respectively located on both sides of the intermediate shaft 2, that is, on the upper and lower sides of the intermediate shaft 2 as shown in the figure. One side of the two planet gears 32 can mesh with the side shaft gear 331 of one side of the differential component 33, and the other side of the two planet gears 32 can mesh with the side shaft gear 331 of the other side of the differential component 33, that is, in the left and right directions as shown in the figure. The left side of the two planet gears 32 meshes perpendicularly with the side shaft gear 331 of the left differential component 33, and the right side of the two planet gears 32 meshes with the side shaft gear 331 of the right differential component 33. Thus, each planet gear 32 meshes perpendicularly with the side shaft gears 331 of the two differential components 33 respectively. When the planet shaft 31 drives the two planet gears 32 to rotate simultaneously, the two planet gears 32 drive the side shaft gears 331 of the two differential components 33 to rotate synchronously, realizing the adjustment of the relative rotation speed of the side shaft gears 331 of the two differential components 33, that is, the two side shaft gears 331 can rotate at different speeds.

[0040] In some embodiments, the side shaft gear 331 is formed with a first limiting spherical surface, and the planet gear 32 is formed with a second limiting spherical surface. The first limiting spherical surface and the second limiting spherical surface are in axial limiting cooperation along the axial direction of the planet shaft 31.

[0041] Specifically, as Figure 1 shown, the planet gear 32 is perpendicularly meshed with the side shaft gear 331. A first limiting spherical surface can be provided on the side shaft gear 331. At the same time, a second limiting spherical surface adapted to the first limiting spherical surface is provided on the planet shaft 31, that is, the first limiting spherical surface and the first limiting spherical surface are concentric and have the same curvature, and can be mutually attached and supported for limiting cooperation. Thus, through the axial limiting cooperation of the first limiting spherical surface and the second limiting spherical surface along the axial direction of the planet shaft 31, the planet gear 32 can be axially limited, preventing the planet gear 32 from axially disengaging or generating excessive displacement when rotating along the planet shaft 31. Thereby, the planet gear 32 can be kept stable during rotation, reducing the gear wear between the planet gear 32 and the side shaft gear 331, improving the transmission efficiency, and by directly providing limiting spherical surfaces on the side shaft gear 331 and the planet gear 32 without separately providing other limiting components, the structure of the power drive system 100 can be made more compact, reducing the space occupation, and further realizing the miniaturization and light weight of the power drive system 100.

[0042] In actual design, a second limiting spherical surface can be provided on the back side of the planet shaft 31. The second limiting spherical surface is configured as a convex spherical surface, and a first limiting spherical surface is provided at a position on the side shaft gear 331 corresponding to the second limiting spherical surface. The first limiting spherical surface can be configured as a concave spherical surface, and the axial limiting of the planet gear 32 is realized through the cooperation of the convex spherical surface and the concave spherical surface.

[0043] It should be noted that second limiting spherical surfaces are provided on both planet gears 32 at both ends of the planet shaft 31 to ensure the stable rotation of the planet shaft 31 and the two planet shafts 31, and prevent the two planet shafts 31 from disengaging from both ends of the planet shaft 31.

[0044] In some embodiments, the two output shafts 4 can be selectively power-connected.

[0045] That is to say, the two output shafts 4 can be selectively connected according to the differential speed. When it is necessary to limit the differential speed, that is, when it is necessary to make the rotation speeds of the two output shafts 4 the same, the two output shafts 4 can be power-connected to achieve synchronous rotation. When it is necessary to achieve differential speed, that is, when it is necessary to make the rotation speeds of the two output shafts 4 different, the two output shafts 4 can be separated and not connected, that is, the two output shafts 4 can rotate independently respectively to achieve the rotation of the two output shafts 4 at different speeds. Thus, through the selective power connection of the two output shafts 4, different differential speed requirements can be achieved according to different needs, ensuring the flexibility and controllability of the power drive system 100.

[0046] In practice, the selective connection of the output shaft 4 can be achieved through devices such as a clutch, a coupling, a gear box, and a transmission belt.

[0047] In some embodiments, the power drive system 100 further includes a clutch structure 5 , the two output shafts 4 are axially opposite to each other, and the clutch structure 5 is located between the two output shafts 4 and is used to selectively connect the two output shafts 4 in a power manner.

[0048] That is to say, the two output shafts 4 are coaxially arranged and face each other, which is conducive to connecting the two output shafts 4. Figure 1 As shown, a clutch structure 5 is installed between the opposite ends of the two output shafts 4, and the two output shafts 4 can be selectively connected or separated by power through the clutch structure 5, that is, when the two output shafts 4 need to be connected, the clutch structure 5 can be engaged so that both ends of the clutch structure 5 are connected to the two output shafts 4 at the same time, so as to connect the two output shafts 4 by power and realize the same speed rotation of the two output shafts 4; when the two output shafts 4 do not need to be connected, the clutch structure 5 can be disengaged so that both ends of the clutch structure 5 are disconnected from the two output shafts 4 at the same time, or one end of the clutch structure 5 is disconnected from one of the output shafts 4, so as to separate the two output shafts 4 and realize the different speed rotation of the two output shafts 4.

[0049] In some embodiments, the clutch structure 5 includes a first clutch element 51, a second clutch element 52 and a synchronizing element 53, the first clutch element 51 is connected to the end of one output shaft 4, the second clutch element 52 is connected to the end of another output shaft 4, and the synchronizing element 53 is movable relative to the output shaft 4 and is used to selectively and synchronously connect the first clutch element 51 and the second clutch element 52.

[0050] That is to say, the power connection of the two output shafts 4 is achieved by the simultaneous connection of the synchronizing element 53 with the first clutch element 51 and the second clutch element 52, and the separation of the two output shafts 4 is achieved by the synchronizing element 53 being separated from the first clutch element 51, or being separated from the second clutch element 52, or being separated from the first clutch element 51 and the second clutch element 52 at the same time.

[0051] Thus, the connection or separation of the two output shafts 4 is achieved through the first clutch element 51, the second clutch element 52 and the synchronizing element 53, which is beneficial to controlling the vehicle torque output, so that it is possible to better control the torque output to each wheel and achieve smoother and better vehicle handling and escape capabilities.

[0052] In actual design, the first clutch element 51, the second clutch element 52 and the synchronizing element 53 can be constructed as any suitable type of structure such as friction plates, pressure plates, conical elements, synchronizers, dog clutches, etc., which can achieve the connection or separation of the two output shafts 4.

[0053] In some embodiments, the driving member is configured as a driving motor 1. The motor shaft of the driving motor 1 is configured as an input shaft 12. The input shaft 12 is provided with a motor gear 121. The intermediate shaft 2 is further provided with an input gear 34. The motor gear 121 meshes with the input gear 34. That is, the rotation of the motor gear 121 can drive the rotation of the input gear 34, thereby realizing the power transmission from the input shaft 12 to the intermediate shaft 2.

[0054] Specifically, as Figure 1 shown in the left-right direction, the input gear 34 is coaxial with the differential component 33 and is located on the right side of the differential component 33. The motor gear 121 is located above the input gear 34 and meshes with it.

[0055] In some embodiments, the input shaft 12, the intermediate shaft 2, and the output shaft 4 are sequentially spaced apart along the longitudinal direction of the vehicle. That is, the input shaft 12, the intermediate shaft 2, and the output shaft 4 are sequentially distributed along the front-rear direction of the vehicle, and there is a certain interval between the three. In this way, it is beneficial to the distribution of each transmission component, realizes a more compact layout, improves the transmission efficiency, and enables the power drive system 100 to operate smoothly and the vehicle to drive normally.

[0056] Specifically, as Figure 1 shown, the up-down direction shown in the figure is the longitudinal direction of the vehicle. That is, the input shaft 12 is located in the front, the output shaft 4 is located in the rear, the intermediate shaft 2 is located between the input shaft 12 and the output shaft 4, and the differential component 33 is located at the intermediate shaft 2, that is, in the middle region of the vehicle, which can improve the transmission efficiency, is beneficial to reducing the energy loss during the power transmission process, enables the differential component to more effectively adjust the rotational speed of the wheels in a timely manner, and improves the driving stability of the vehicle.

[0057] The present utility model also proposes a vehicle.

[0058] For the vehicle according to the embodiment of the present utility model, the power drive system 100 of any one of the above embodiments is provided. Among them, by arranging the differential component 33 at the intermediate shaft 2, the torque received by the differential component 33 can be reduced, which is beneficial to the miniaturization and light weight of the differential component 33. Thus, the weight of the power drive system 100 can be reduced, and the torque and power density of the power drive system 100 can be improved. By relatively fixing the planetary shaft 31 to the intermediate shaft 2, the setting of the differential housing can be cancelled, thereby reducing the number and weight of components. Furthermore, the weight of the power drive system 100 can be reduced to achieve a light weight design. At the same time, cancelling the differential housing can also expose the contact and sliding surfaces of the planetary gear with the differential component 33 in the cavity of the power drive system 100, which is beneficial to lubrication by the lubricating fluid. Thus, under the condition of ensuring sufficient lubrication of the differential component 33, the amount of lubricating oil can be reduced, and the churning loss can be reduced.

[0059] Thus, the weight of the vehicle can be reduced, the rotational speed of the vehicle wheels can be adjusted in a timely manner, the stability and controllability of the vehicle can be improved, so that the vehicle can maintain good driving performance under various conditions, and the riding comfort of users can be enhanced.

[0060] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power drive system, characterized in that: include: A driving member connected to an input shaft; An intermediate shaft and a differential structure, wherein the intermediate shaft is dynamically connected to the input shaft, and the differential structure comprises a planetary shaft and two differential components, wherein the planetary shaft is relatively fixed to the intermediate shaft, and planetary gears are arranged outside the planetary shaft, and the two differential components are both freely sleeved outside the intermediate shaft and are respectively located on both sides of the planetary shaft, and the differential components are meshed with the planetary gears; Two output shafts are connected to the two differential components in a one-to-one correspondence.

2. The power drive system according to claim 1, characterized in that: The differential component comprises a shaft side gear and a driving gear, wherein the shaft side gear and the driving gear are coaxially connected and are both hollowly sleeved outside the intermediate shaft; Wherein, the output shaft is provided with a driven gear, the shaft-side gear is meshed with the planetary gear, and the driving gear is meshed with the driven gear.

3. The power drive system according to claim 2, characterized in that: There are two planetary gears, which are respectively connected to the two ends of the planetary shaft, and are respectively located on both sides of the intermediate shaft, and each of the planetary gears is respectively meshed with the shaft side gears of the two differential components.

4. The power drive system according to claim 2, characterized in that: The shaft-side gear is formed with a first limiting spherical surface, and the planetary gear is formed with a second limiting spherical surface, and the first limiting spherical surface and the second limiting spherical surface are matched in an axial limiting manner along the planetary shaft.

5. The power drive system according to claim 1, characterized in that: The two output shafts can be selectively connected in power.

6. The power drive system according to claim 5, characterized in that: It also includes a clutch structure, the two output shafts are axially opposite to each other, the clutch structure is located between the two output shafts and is used to selectively connect the two output shafts by power.

7. The power drive system according to claim 6, characterized in that: The clutch structure includes a first clutch element, a second clutch element and a synchronous element. The first clutch element is connected to the end of one of the output shafts, the second clutch element is connected to the end of the other output shaft, and the synchronous element is movable relative to the output shaft and is used to selectively and synchronously connect the first clutch element and the second clutch element.

8. The power drive system according to claim 1, characterized in that: The driving member is configured as a driving motor, a motor shaft of the driving motor is configured as the input shaft, the input shaft is provided with a motor gear, the intermediate shaft is further provided with an input gear, and the motor gear is meshed with the input gear.

9. The power drive system according to claim 1, characterized in that: The input shaft, the intermediate shaft, and the output shaft are sequentially spaced apart from each other in the longitudinal direction of the vehicle.

10. A vehicle, characterized in that: A power drive system according to any one of claims 1 to 9 is provided.

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