Vehicle transmission

Abstract

The present invention relates to the technical field of mechanical transmission, and discloses a vehicle transmission device, including a driving member, a first planetary gear, a second planetary gear and a speed change mechanism; the speed change mechanism is connected to the driving member, and the speed change mechanism is also respectively connected to the second output end and the total output end, the speed change mechanism is used to control the speed of the third input end, and the speed change mechanism is provided with a gear position. When the vehicle needs to travel at a high speed, the driving member can drive the second planetary gear to start rotating through the first planetary gear, and the driving member also drives the second planetary gear to rotate through the speed change mechanism and the third input end, so that the second planetary gear starts to rotate under the simultaneous drive of the second input end and the third input end, and driven by the second input end and the third input end, the speed of the second output end is higher, which solves the technical problem of high energy consumption of the driving motor when traveling at a high speed in the prior art, and achieves the technical effect that the driving motor speed is low when the vehicle travels at a high speed, thereby resulting in low energy consumption of the driving motor.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, and in particular to a vehicle transmission device. Background Art

[0002] In electric vehicles, a transmission is generally provided between the motor end for driving and the drive wheel at the end, so as to transmit the motor speed to the drive wheel after being reduced by the transmission. In addition to electric vehicle transmissions with a single gear structure, transmissions that can switch two or more gears are often used in electric commercial vehicles.

[0003] However, the transmission of the prior art generally adopts the characteristics of a planetary gear, increases torque by using the speed difference between input and output, controls the output speed by using different gear ratios in the gear, and is provided with an input and an output on each planetary gear. As a result, it can be inferred from its characteristics that the speed of the planetary gear output is relatively large, and when the drive wheel rotates at high speed, the drive motor also needs to rotate at high speed, and the energy consumption of the drive motor is relatively high. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle transmission device to solve the technical problem of high energy consumption of the driving motor during high-speed driving in the prior art.

[0005] In order to solve the above technical problems, the present invention provides a vehicle transmission device, including a driving member, a first planetary gear, a second planetary gear and a speed change mechanism;

[0006] The driving member is connected to the first input end of the first planetary gear, the first output end of the first planetary gear is connected to the second input end of the second planetary gear, and the second output end of the second planetary gear is connected to the total output end;

[0007] The speed change mechanism is connected to the third input end of the second planetary gear, the speed change mechanism is connected to the driving member, and the speed change mechanism is also connected to the second output end and the total output end respectively, and the speed change mechanism is used to control the speed of the third input end.

[0008] In an optional embodiment, the speed change mechanism includes a sliding gear, a first gear, a second gear and a third gear;

[0009] The first gear, the second gear and the third gear are arranged parallel to each other and at intervals, the sliding gear selectively meshes with the first gear, the second gear or the third gear, and the sliding gear is connected to the third input end.

[0010] In an optional implementation, the first gear is fixedly arranged, the second gear is connected to the second output end and the total output end, and the third gear is connected to the driving member.

[0011] In an optional embodiment, the first planetary gear comprises a first sun gear, a first planetary gear, a first planet carrier and a first ring gear, the first sun gear is provided with the first input end, a plurality of first planetary gears are provided, each of the first planetary gears is meshed with the first sun gear, each of the first planetary gears is rotatably connected with the first planet carrier, and the first planet carrier is provided with the first output end;

[0012] The first gear ring is sleeved on the first planetary gears, and the first gear ring is meshed with the first planetary gears respectively.

[0013] In an optional embodiment, the first ring gear is fixed.

[0014] In an optional embodiment, the second planetary gear row includes a second sun gear, second planetary gears, a second planet carrier and a second ring gear, a plurality of second planetary gears are meshed and connected around the second sun gear, the second planet carrier is rotatably connected to each of the second planetary gears, the second ring gear is provided on the plurality of second planetary gears, and the second ring gear is meshed with the plurality of second planetary gears respectively;

[0015] The second ring gear is provided with the second input end connected to the first output end, the second sun gear is provided with the third input end connected to the first output end, and the second planet carrier is provided with the second output end connected to the total output end.

[0016] In an optional embodiment, the second ring gear is connected to the sliding gear.

[0017] In an optional embodiment, a third planetary gear is further included;

[0018] The third planetary gear is provided with a fourth input end respectively connected to the speed change mechanism and the second output end, and the third planetary gear is also provided with a third output end connected to the total output end.

[0019] In an optional embodiment, the third planetary gear includes a third sun gear, a third planetary gear, a third planet carrier and a third ring gear. The third sun gear is respectively meshed with a plurality of the third planetary gears, each of the third planetary gears is respectively rotatably connected to the third planet carrier, the third ring gear is sleeved on each of the third planetary gears, the third ring gear is respectively meshed with each of the third planetary gears, and the third ring gear is fixedly arranged, the third sun gear is provided with the fourth input end, and the third planet carrier is provided with the third output end.

[0020] In an optional embodiment, a differential is also included;

[0021] The total output end is arranged on the differential, and the differential is respectively connected to the third planetary gear, the speed change mechanism and the second planetary gear.

[0022] The present invention provides a vehicle transmission device, comprising a driving member, a first planetary gear, a second planetary gear and a speed change mechanism; the driving member is connected to the first input end of the first planetary gear, the first output end of the first planetary gear is connected to the second input end of the second planetary gear, and the second output end of the second planetary gear is connected to the total output end; the speed change mechanism is connected to the third input end of the second planetary gear, the speed change mechanism is connected to the driving member, and the speed change mechanism is also connected to the second output end and the total output end respectively, the speed change mechanism is used to control the speed of the third input end, and the speed change mechanism is provided with a gear position. When the vehicle needs to travel at a high speed, the driving member can drive the second planetary gear to start rotating through the first planetary gear, and the driving member also drives the second planetary gear to rotate through the speed change mechanism and the third input end, so that the second planetary gear starts to rotate under the simultaneous driving of the second input end and the third input end, and driven by the second input end and the third input end, the speed of the second output end is higher, which solves the technical problem of high energy consumption of the driving motor when traveling at a high speed in the prior art, and achieves the technical effect that the driving motor speed is low when the vehicle travels at a high speed, thereby resulting in low energy consumption of the driving motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a first structural schematic diagram of a vehicle transmission device mentioned in an embodiment of the present invention;

[0024] Figure 2 is a second structural schematic diagram of the vehicle transmission device mentioned in an embodiment of the present invention;

[0025] Figure 3 It is a third structural schematic diagram of the vehicle transmission device mentioned in an embodiment of the present invention.

[0026] In the figure, 1-driving member; 2-first planetary gear; 3-second planetary gear; 4-third planetary gear; 5-first gear; 6-second gear; 7-third gear; 8-sliding gear; 9-differential; 10-first input terminal; 11-second input terminal; 12-third input terminal; 13-fourth input terminal; 14-first output terminal; 15-second output terminal; 16-third output terminal; 17-total output terminal. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The transmission of the prior art generally adopts the characteristics of planetary gears, increases torque through the speed difference between input and output, and controls the output speed through different gear ratios in the gears. Each planetary gear is provided with an input and an output, which leads to the output speed of the planetary gear. According to its characteristics, it can be inferred that the speed of the reducer is relatively large, and the drive motor needs to rotate at a high speed when the drive wheel rotates at a high speed, resulting in high energy consumption of the drive motor.

[0030] In view of this, if Figure 1-Figure 3 As shown, some embodiments of the present invention provide a vehicle transmission device, including a driving member 1, a first planetary gear 2, a second planetary gear 3 and a speed change mechanism; the driving member 1 is connected to the first input end 10 of the first planetary gear 2, the first output end 14 of the first planetary gear 2 is connected to the second input end 11 of the second planetary gear 3, and the second output end 15 of the second planetary gear 3 is connected to the total output end 17; the speed change mechanism is connected to the third input end 12 of the second planetary gear 3, the speed change mechanism is connected to the driving member 1, and the speed change mechanism is also connected to the second output end 15 and the total output end 17 respectively, and the speed change mechanism is used to control the speed of the third input end 12.

[0031] In the above embodiment, the first planetary row 2 and the second planetary row 3 can be arranged in parallel, the first planetary row 2 is arranged between the second planetary row 3 and the speed change mechanism, the total output end 17 is arranged on the side of the speed change mechanism away from the first planetary row 2, and the connection method between the first planetary row 2, the second planetary row 3, the driving member 1, the speed change mechanism and the total output end 17 includes but is not limited to a connecting shaft, a tooth plate or a gear, wherein the driving member 1 may include a driving motor, and the driving member 1 may be connected to the first input end 10 of the first planetary row 2 through a connecting shaft or a gear, and after being decelerated by the first planetary row 2, it is driven from the first output end 14 to the second input end 11 of the second planetary row 3, so that the speed input by the driving member 1 is first decelerated by the first planetary row 2, and then the second planetary row 3 is decelerated by the second output end 14. The speed inputted by the second input terminal 11 starts to rotate, and starts to be outputted through the second output terminal 15 of the second planetary gear 3, so that the speed inputted by the driving member 1 is decelerated twice by the second planetary gear 3, and the driving member 1 is also connected to the speed changing mechanism, and the speed changing mechanism is connected to the third input terminal 12 of the second planetary gear 3, and the speed changing mechanism is used to control the speed of the third input terminal 12 of the second planetary gear 3, and can control the third input terminal 12 to rotate, and can also control the third input terminal 12 to be stationary, and the third input terminal 12 can cooperate with the second input terminal 11 to adjust the speed of the second output terminal 15, and when the third input terminal 12 and the second input terminal 11 are driven synchronously, the speed of the second output terminal 15 of the second planetary gear 3 can be made higher, so that the speed of the total output terminal 17 of the vehicle is higher, and the vehicle travels faster.

[0032] The second output terminal 15 is also connected to the total output terminal 17, and the power output through the second output terminal 15 can be transmitted to the total output terminal 17, wherein the total output terminal 17 can be set as the front axle or the rear axle of the vehicle, the total output terminal 17 can be the half-axle of the vehicle or the left and right wheels of the vehicle, and the total output terminal 17 distributes the power to the left and right wheels of the vehicle to make the vehicle move.

[0033] Some embodiments of the present invention provide a vehicle transmission device, comprising a drive member 1, a first planetary gear 2, a second planetary gear 3 and a speed change mechanism; when the vehicle needs to travel at high speed, the drive member 1 can drive the second planetary gear 3 to start rotating through the first planetary gear 2, and the drive member 1 also drives the second planetary gear 3 to rotate through the speed change mechanism and the third input terminal 12, so that the second planetary gear 3 starts to rotate under the simultaneous drive of the second input terminal 11 and the third input terminal 12, and driven by the second input terminal 11 and the third input terminal 12, the rotation speed of the second output terminal 15 is higher, which solves the technical problem of high energy consumption of the driving motor when traveling at high speed in the prior art, and achieves the technical effect that the driving motor has a lower rotation speed when the vehicle is traveling at high speed, thereby resulting in lower energy consumption of the driving motor.

[0034] In an optional embodiment, the speed change mechanism includes a sliding gear 8, a first gear gear 5, a second gear gear 6 and a third gear gear 7; the first gear gear 5, the second gear gear 6 and the third gear gear 7 are arranged parallel to each other and at intervals, the sliding gear 8 selectively engages with the first gear gear 5, the second gear gear 6 or the third gear gear 7, and the sliding gear 8 is connected to the third input terminal 12.

[0035] In the above embodiment, the first gear 5, the second gear 6 and the third gear 7 can be gears of the same size and shape, or gears of different sizes, wherein the first gear 5 is arranged between the second gear 6 and the third gear 7, the first gear 5, the second gear 6 and the third gear 7 are parallel to and spaced from each other, and the second gear 6 and the third gear 7 are not at the same distance from the first gear 5, further, the sliding gear 8 can be arranged as one, the sliding gear 8 is arranged on a connecting shaft and drives the sliding gear 8 to move via the connecting shaft, so that the sliding gear 8 is respectively connected to the first gear 5, the second gear 6 and the third gear 7 The third gear 7 is meshed to realize the transmission of the first gear, the second gear and the third gear. Alternatively, three sliding gears 8 can be provided, and the three sliding gears 8 are respectively used to connect the first gear 5, the second gear 6 and the third gear 7, and when each gear is connected, the other two gears are idle to avoid damage caused by the simultaneous meshing of the two gears. Two sliding gears 8 can be provided between the first gear 5 and the second gear 6, and one sliding gear 8 can be provided between the first gear 5 and the third gear 7, so that each sliding gear 8 can be connected to the first gear 5, the second gear 6 or the third gear 7 when the connecting shaft slides.

[0036] Optionally, the three sliding gears 8 can also be respectively arranged on the same side of the first gear gear 5, the second gear gear 6 and the third gear gear 7, that is, there is a sliding gear 8 between the first gear gear 5 and the second gear gear 6, a sliding gear 8 is also arranged between the first gear gear 5 and the third gear gear 7, and a sliding gear 8 is also arranged on the side of the third gear 7 away from the first gear gear 5. The three sliding gears 8 are driven by the connecting shaft, so that each sliding gear 8 can be respectively connected to the first gear gear 5, the second gear gear 6 and the third gear gear 7.

[0037] In an optional embodiment, the first gear 5 is fixedly arranged, the second gear 6 is connected to the second output end 15 and the total output end 17 , and the third gear 7 is connected to the driving member 1 .

[0038] In the above embodiment, when the sliding gear 8 is connected to the first gear 5, the sliding gear 8 is fixed, so that the third input end 12 of the second planetary gear 3 is fixed. At this time, the speed input through the second input end 11 is directly output from the second output end 15 to the total output end 17 after being decelerated by the second planetary gear 3. At this time, the speed of the total output end 17 is the smallest; and when the sliding gear 8 is connected to the second gear 6, the sliding gear 8 is connected to the third input end 12, and the second gear 6 is connected to the second output end 15, resulting in the second output end 15 and the third input end 12 having the same speed, that is, the speed input through the second input end 11 is not decelerated. The output is directly output through the second output terminal 15, the rotation speed of the second input terminal 11 is the same as the rotation speed of the second output terminal 15, and the speed of the total output terminal 17 should be the same as the speed of the first output terminal 14, without the secondary deceleration of the second planetary gear 3; and when the sliding gear 8 is connected to the third gear gear 7, the driving member 1 drives the sliding gear 8 to rotate through the third gear gear 7, and the sliding gear 8 drives the third input terminal 12 to rotate. At the same time, the first planetary gear 2 drives the second input terminal 11 to rotate, so that the second planetary gear 3, in cooperation with the second input terminal 11 and the third input terminal 12, increases the rotation speed of the second output terminal 15, thereby increasing the rotation speed of the total output terminal 17.

[0039] Optional, Figure 1 This is a schematic diagram of the structure when the first gear 5 is connected to the sliding gear 8. Figure 2 It is a schematic diagram of the structure when the second gear 6 is connected to the sliding gear 8. Figure 3 It is a schematic diagram of the structure when the third gear 7 is connected to the sliding gear 8.

[0040] In an optional embodiment, the first planetary row 2 includes a first sun gear, a first planetary gear, a first planet carrier and a first ring gear, the first sun gear is provided with a first input end 10, a plurality of first planetary gears are provided, each first planetary gear is meshed with the first sun gear, each first planetary gear is rotatably connected to the first planet carrier, and a first output end 14 is provided on the first planet carrier; the first ring gear is mounted on a plurality of first planetary gears, and the first ring gear is respectively meshed with the plurality of first planetary gears.

[0041] In an optional embodiment, the first ring gear is fixed.

[0042] In the above embodiment, the diameter of the first sun gear can be larger than that of the first planetary gear, and the outer surface of the first sun gear, the outer surface of the first planetary gear and the inner surface of the first gear ring can be provided with helical teeth to increase the connection area between the first sun gear, the first planetary gear and the first gear ring, wherein four first planetary gears are arranged around the first sun gear, the four first planetary gears are arranged in a square, each first planetary gear is rotatably connected to the first planet carrier through a rotating column, and a first gear ring is sleeved on the outer side of the four first planetary gears, the first gear ring can be fixed in the gearbox, and the first sun gear is provided with a first input end 10, the first input end 10 can be set as a flange, the driving member 1 can be connected to the first sun gear through the flange, so that the driving member 1 can drive the first sun gear to rotate, and when the first gear ring is fixed, the first sun gear can drive multiple first planetary gears to rotate, and the multiple first planetary gears can synchronously drive the first planet carrier to move, so that the first output end 14 on the first planet carrier can output the decelerated speed, wherein the first output end 14 can be set as a rotating shaft, and the first output end 14 outputs the speed to the second planetary row 3.

[0043] In an optional embodiment, the second planetary row 3 includes a second sun gear, a second planetary gear, a second planetary carrier and a second ring gear, a plurality of second planetary gears are meshed and connected around the second sun gear, the second planetary carrier is respectively rotatably connected to each second planetary gear, the second ring gear is arranged on the plurality of second planetary gears, and the second ring gear is respectively meshed with the plurality of second planetary gears; the second ring gear is provided with a second input terminal 11 connected to the first output terminal 14, the second sun gear is provided with a third input terminal 12 connected to the first output terminal 14, and the second planetary carrier is provided with a second output terminal 15 connected to the total output terminal 17.

[0044] In the above embodiment, the diameter of the second sun gear can be larger than that of the second planetary gear, and the outer surface of the second sun gear, the outer surface of the second planetary gear and the inner surface of the second gear ring can be provided with helical teeth to increase the connection area between the second sun gear, the second planetary gear and the second gear ring, wherein four second planetary gears are provided around the second sun gear, the four second planetary gears are arranged in a square, each second planetary gear is rotatably connected to the second planet carrier through a rotating column, and a second gear ring is provided on the outer side of the four second planetary gears, a third input end 12 is provided on the second sun gear, a second input end 11 can be provided on the second gear ring, and the second input end 11 and the third input end 12 can both be provided as flanges The first output end 14 can be connected to the second sun gear through a flange, so that the first planet carrier can drive the second ring gear to rotate, and the sliding gear 8 can also be connected to the second sun gear. When the second sun gear driven by the sliding gear 8 rotates, the first planet carrier drives the second ring gear to rotate, so that the multiple second planetary gears start to rotate under the cooperation of the second ring gear and the second sun gear, and the multiple second planetary gears drive the second planet carrier to start rotating, so that the rotation speed of the second output end 15 is obtained by the cooperation of the second ring gear and the second sun gear. The rotation speed of the second output end 15 can be increased under the cooperation of the second ring gear and the second sun gear. Compared with the case where only a single input speed can be used, a higher rotation speed can be increased, and the motor is more labor-saving.

[0045] In an optional embodiment, a third planetary gear 4 is further included; the third planetary gear 4 is provided with a fourth input terminal 13 connected to the speed change mechanism and the second output terminal 15 respectively, and the third planetary gear 4 is also provided with a third output terminal 16 connected to the total output terminal 17.

[0046] In the above embodiment, the third planetary gear 4 can be arranged between the total output end 17 and the speed change mechanism, the third planetary gear 4 can be arranged in parallel with the second planetary gear 3, the fourth input end 13 can be set as a flange, and the fourth input end 13 can be connected to the second gear 6 and the second planetary carrier in the speed change mechanism respectively. After the second output end 15 transmits the speed to the fourth driving-in section, it is decelerated by the third planetary gear 4, and then output to the total output end 17 through the third output end 16 of the third planetary gear 4, thereby improving the driving force to the total output end 17.

[0047] In an optional embodiment, the third planetary gear 4 includes a third sun gear, a third planetary gear, a third planet carrier and a third ring gear. The third sun gear is respectively meshed with multiple third planetary gears, each third planetary gear is respectively rotatably connected to the third planet carrier, the third ring gear is mounted on each third planetary gear, the third ring gear is respectively meshed with each third planetary gear, and the third ring gear is fixedly arranged, a fourth input port 13 is arranged on the third sun gear, and a third output port 16 is arranged on the third planet carrier.

[0048] In the above embodiment, the diameter of the third sun gear can be larger than that of the third planetary gear, and the outer surface of the third sun gear, the outer surface of the third planetary gear and the inner surface of the third gear ring can be provided with helical teeth to increase the connection area between the third sun gear, the third planetary gear and the third gear ring, wherein four third planetary gears are arranged around the third sun gear, the four third planetary gears are arranged in a square, each third planetary gear is rotatably connected to the third planet carrier through a rotating column, and a third gear ring is sleeved on the outer side of the four third planetary gears, a fourth input end 13 is provided on the third sun gear, and a third output end 16 is provided on the third planet carrier, the second input end 11 and the third input end 12 can be provided as flanges, the second planet carrier can be connected to the third sun gear respectively through a connecting shaft, and the second gear 6 can also be provided on the connecting shaft, and the third gear ring is fixed in the gearbox, so that the speed transmitted through the second planet carrier can be reduced through the third sun gear, the third planetary gear and the third planet carrier, and thus output through the third output end 16 on the third planet carrier.

[0049] In an optional embodiment, a differential 9 is further included; a total output end 17 is provided on the differential 9, and the differential 9 is connected to the third planetary gear 4, the speed change mechanism and the second planetary gear 3 respectively.

[0050] In the above embodiment, the total output end 17 can be set as a flange connected to the input end of the differential 9, and the total output end 17 can be connected to the third output end 16 through a connecting shaft, that is, the input end of the differential 9 can be connected to the third planetary carrier through a connecting shaft, so that when the third planetary carrier rotates, it can drive the differential 9 to rotate through the connecting shaft, thereby distributing power to the left and right half shafts through the differential 9, and then distributing it to the driving wheels on the left and right sides through the left and right half shafts, so as to drive the vehicle to move.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle transmission device, characterized in that: It includes a driving member, a first planetary gear, a second planetary gear and a speed change mechanism; The driving member is connected to the first input end of the first planetary gear, the first output end of the first planetary gear is connected to the second input end of the second planetary gear, and the second output end of the second planetary gear is connected to the total output end; The speed change mechanism is connected to the third input end of the second planetary gear, the speed change mechanism is connected to the driving member, and the speed change mechanism is also connected to the second output end and the total output end respectively, and the speed change mechanism is used to control the speed of the third input end; The speed change mechanism comprises a sliding gear, a first gear, a second gear and a third gear; The first gear, the second gear and the third gear are arranged parallel to each other and spaced apart, the sliding gear is selectively meshed with the first gear, the second gear or the third gear, and the sliding gear is connected to the third input end; The second planetary gear comprises a second sun gear, second planetary gears, a second planet carrier and a second ring gear, wherein the second sun gear is circumferentially meshed with a plurality of the second planetary gears, the second planet carrier is rotatably connected to each of the second planetary gears, the second ring gear is disposed on the plurality of the second planetary gears, and the second ring gear is meshed with the plurality of the second planetary gears respectively; The second ring gear is provided with the second input end connected to the first output end, the second sun gear is provided with the third input end connected to the first output end, and the second planet carrier is provided with the second output end connected to the total output end; The second gear ring is connected to the sliding gear.

2. The vehicle transmission device according to claim 1, characterized in that: The first gear is fixedly arranged, the second gear is connected to the second output end and the total output end, and the third gear is connected to the driving member.

3. The vehicle transmission device according to claim 1, characterized in that: The first planetary gear comprises a first sun gear, a first planetary gear, a first planet carrier and a first ring gear, the first sun gear is provided with the first input end, a plurality of first planetary gears are provided, each of the first planetary gears is meshed with the first sun gear, each of the first planetary gears is rotatably connected with the first planet carrier, and the first planet carrier is provided with the first output end; The first gear ring is sleeved on the first planetary gears, and the first gear ring is meshed with the first planetary gears respectively.

4. The vehicle transmission device according to claim 3, characterized in that: The first gear ring is fixed.

5. The vehicle transmission device according to claim 1, characterized in that: Also included is a third planetary row; The third planetary gear is provided with a fourth input end respectively connected to the speed change mechanism and the second output end, and the third planetary gear is also provided with a third output end connected to the total output end.

6. The vehicle transmission device according to claim 5, characterized in that: The third planetary gear comprises a third sun gear, a third planetary gear, a third planet carrier and a third ring gear. The third sun gear is circumferentially meshed with a plurality of the third planetary gears respectively. Each of the third planetary gears is rotatably connected with the third planet carrier respectively. The third ring gear is sleeved on each of the third planetary gears. The third ring gear is meshed with each of the third planetary gears respectively and the third ring gear is fixedly arranged. The fourth input end is arranged on the third sun gear, and the third output end is arranged on the third planet carrier.

7. The vehicle transmission device according to claim 5, characterized in that: Also includes differentials; The total output end is arranged on the differential, and the differential is respectively connected to the third planetary gear, the speed change mechanism and the second planetary gear.

Images