CN118849747B - Vehicle transmission - Google Patents
Vehicle transmission Download PDFInfo
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- CN118849747B CN118849747B CN202411337541.3A CN202411337541A CN118849747B CN 118849747 B CN118849747 B CN 118849747B CN 202411337541 A CN202411337541 A CN 202411337541A CN 118849747 B CN118849747 B CN 118849747B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 230000008859 change Effects 0.000 claims abstract description 32
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
- B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing provided between independent half axles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
Abstract
本发明涉及机械传动的技术领域，公开了一种车辆传动装置，包括驱动件、第一行星排、第二行星排和变速机构；变速机构与驱动件连接，变速机构还分别与第二输出端和总输出端连接，变速机构用于控制第三输入端的速度，变速机构上设置有挡位，在车辆需要高速行驶时，驱动件可以通过第一行星排驱动第二行星排开始转动，而驱动件还通过变速机构和第三输入端驱动第二行星排转动，从而使第二行星排在第二输入端和第三输入端的同时驱动下开始转动，并在第二输入端和第三输入端的带动下，第二输出端的转速更高，解决了现有技术中的高速行驶时驱动电机能耗较高的技术问题，达到了车辆在高速行驶时驱动电机转速较低，从而导致驱动电机的能耗较低的技术效果。
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
The invention relates to the technical field of mechanical transmission, in particular to a vehicle transmission device.
Background
In electric vehicles, a transmission is generally provided between drive wheels from the end to the end of a motor for driving, so that, in particular, the rotational speed of the motor is reduced by the transmission and transmitted to the drive wheels. In addition to electric vehicle transmissions of single gear construction, transmissions that can shift two or more gears are often used in electric commercial vehicles.
However, the prior art transmission generally adopts the characteristics of planetary rows, torque is increased through the difference between the rotational speeds of input and output, the rotational speeds of output are controlled through different gear ratios in gears, and each planetary row is provided with one input and one output, so that the rotational speeds of the output of the planetary rows can be deduced according to the characteristics of the planetary rows, the speed reducer is relatively large, and a driving motor also needs to rotate at a high speed when the driving wheel rotates at a high speed, so that the energy consumption of the driving motor is relatively high.
Disclosure of Invention
The invention aims to provide a vehicle transmission device which solves the technical problem of high energy consumption of a driving motor during high-speed running in the prior art.
In order to solve the technical problem, the invention provides a vehicle transmission device, which comprises a driving piece, a first planetary row, a second planetary row and a speed change mechanism;
The driving piece is connected with a first input end of the first planetary row, a first output end of the first planetary row is connected with a second input end of the second planetary row, and a second output end of the second planetary row is connected with a total output end;
The speed change mechanism is connected with a third input end of the second planetary gear set, the speed change mechanism is connected with the driving piece, the speed change mechanism is also connected with the second output end and the total output end respectively, and the speed change mechanism is used for controlling the speed of the third input end.
In an alternative embodiment, 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 parallel to each other and are arranged at intervals, the sliding gear is selectively meshed with the first gear, the second gear or the third gear, and the sliding gear is connected with the third input end.
In an alternative embodiment, the first gear is fixedly arranged, the second gear is connected to the second output and the total output, and the third gear is connected to the drive element.
In an alternative embodiment, the first planet row includes a first sun gear, a first planet wheel, a first planet carrier and a first gear ring, the first sun gear is provided with the first input end, the first planet wheels are provided with a plurality of first planet wheels, each first planet wheel is meshed with the first sun gear, each first planet wheel is rotationally connected with the first planet carrier, and the first planet carrier is provided with the first output end;
the first gear rings are sleeved on the plurality of first planet gears, and the first gear rings are meshed with the plurality of first planet gears respectively.
In an alternative embodiment, the first ring gear is fixedly arranged.
In an alternative embodiment, the second planetary gear set includes a second sun gear, a second planetary gear, a second planet carrier, and a second gear ring, where a plurality of the second planetary gears are connected around the second sun gear in an engaged manner, the second planet carrier is respectively connected with each of the second planetary gears in a rotating manner, the second gear ring is disposed on the plurality of the second planetary gears, and the second gear ring is respectively engaged with the plurality of the second planetary gears;
The second gear ring is provided with a second input end connected with the first output end, the second sun gear is provided with a third input end connected with the first output end, and the second planet carrier is provided with a second output end connected with the total output end.
In an alternative embodiment, the second ring gear is connected to the sliding gear.
In an alternative embodiment, a third planet row is also included;
The third planetary row is provided with a fourth input end which is respectively connected with the speed change mechanism and the second output end, and the third planetary row is also provided with a third output end which is connected with the total output end.
In an alternative embodiment, the third planet row includes a third sun gear, third planet wheels, a third planet carrier and a third gear ring, the periphery of the third sun gear is respectively meshed with a plurality of third planet wheels, each third planet wheel is respectively connected with the third planet carrier in a rotating mode, the third gear ring is sleeved on each third planet wheel, the third gear ring is respectively meshed with each third planet wheel, the third gear ring is fixedly arranged, the third sun gear is provided with a fourth input end, and the third planet carrier is provided with a third output end.
In an alternative embodiment, a differential is also included;
the differential mechanism is provided with the total output end and is respectively connected with the third planetary row, the speed change mechanism and the second planetary row.
The invention provides a vehicle transmission device which comprises a driving piece, a first planet row, a second planet row and a speed changing mechanism, wherein the driving piece is connected with a first input end of the first planet row, a first output end of the first planet row is connected with a second input end of the second planet row, a second output end of the second planet row is connected with a total output end, the speed changing mechanism is connected with a third input end of the second planet row, the speed changing mechanism is connected with the driving piece, the speed changing mechanism is respectively connected with the second output end and the total output end, the speed changing mechanism is used for controlling the speed of the third input end, a gear is arranged on the speed changing mechanism, when a vehicle needs to run at a high speed, the driving piece can drive the second planet row to rotate through the first planet row, and the driving piece can drive the second planet row to rotate through the speed changing mechanism and the third input end, so that the second planet row starts to rotate under the simultaneous driving of the second input end and the third input end, and under the driving of the second input end and the third input end, the speed changing mechanism is higher than the speed of the second output end, the speed changing mechanism is used for controlling the speed of the third input end, the speed of the motor in the prior art, the motor is higher, the motor is driven at a higher speed, and the lower energy consumption is achieved, and the lower when the motor is driven, and the motor is driven at a higher speed and the motor is driven.
Drawings
FIG. 1 is a first schematic structural view of a vehicle transmission according to an embodiment of the present invention;
FIG. 2 is a second schematic structural view of a vehicle transmission according to an embodiment of the present invention;
fig. 3 is a schematic view of a third construction of the vehicle transmission device according to the embodiment of the present invention.
In the figure, the drive member 1, the first planetary gear 2, the second planetary gear 3, the third planetary gear 4, the first gear 5, the second gear 6, the third gear 7, the sliding gear 8, the differential 9, the first input 10, the second input 11, the third input 12, the fourth input 13, the first output 14, the second output 15, the third output 16 and the total output 17.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Prior transmissions typically employ the characteristics of a planetary gear set to increase torque by differential rotational speed of the input and output, and to control rotational speed of the output by different gear ratios in the gear. An input and an output are arranged on each planet row, so that the rotation speed of the output of the planet row can be deduced according to the characteristics of the output, the speed reducer is relatively large, and when the driving wheel rotates at a high speed, the driving motor needs to rotate at a high speed, so that the energy consumption of the driving motor is relatively high.
In view of this, as shown in fig. 1-3, some embodiments of the present invention provide a vehicle transmission including a driving member 1, a first planetary row 2, a second planetary row 3, and a speed change mechanism, wherein the driving member 1 is connected to a first input 10 of the first planetary row 2, a first output 14 of the first planetary row 2 is connected to a second input 11 of the second planetary row 3, a second output 15 of the second planetary row 3 is connected to a total output 17, the speed change mechanism is connected to a third input 12 of the second planetary row 3, the speed change mechanism is connected to the driving member 1, and the speed change mechanism is also connected to the second output 15 and the total output 17, respectively, for controlling a speed of the third input 12.
In the above embodiment, the first planetary gear 2 and the second planetary gear 3 may be arranged in parallel, the first planetary gear 2 is disposed between the second planetary gear 3 and the speed change mechanism, the total output end 17 is disposed on a side of the speed change mechanism facing away from the first planetary gear 2, the connection manner between the first planetary gear 2, the second planetary gear 3, the driving member 1, the speed change mechanism and the total output end 17 includes, but is not limited to, a connection shaft, a tooth plate or a gear, where the driving member 1 may include a driving motor, the driving member 1 may be connected to the first input end 10 of the first planetary gear 2 through the connection shaft or the gear, and after the first planetary gear 2 is decelerated, the rotation speed input by the driving member 1 is decelerated for the first time by the first planetary gear 2, then the rotation speed input by the second planetary gear 3 is started to rotate through the second input end 11, and output is started through the second output end 15 of the second planetary gear 3, so that the rotation speed input by the driving member 1 is decelerated for the second time by the second gear 3, and the speed change mechanism is further controlled by the second planetary gear 3, and the third planetary gear 3 is further controlled to rotate at the second input end 12, and the third input end 12 is further rotated by the third planetary gear 3, and the third planetary gear 3 is controlled to rotate at the third input end 12, and the third input end 12 is further rotated, and the third input end is controlled, and the third input end 12 is higher and can be rotated, and higher, and the third input is simultaneously, and can be rotated.
The second output end 15 is further connected to a total output end 17, and the power output through the second output end 15 can be transmitted to the total output end 17, wherein the total output end 17 can be set as a front axle or a rear axle of the vehicle, the total output end 17 can be a half axle of the vehicle or left and right wheels of the vehicle, and the total output end 17 distributes the power to the left and right wheels of the vehicle so as to enable the vehicle to move.
The vehicle transmission device comprises a driving piece 1, a first planetary row 2, a second planetary row 3 and a speed change mechanism, wherein when a vehicle needs to run at a high speed, the driving piece 1 can drive the second planetary row 3 to start rotating through the first planetary row 2, and the driving piece 1 can drive the second planetary row 3 to rotate through the speed change mechanism and a third input end 12, so that the second planetary row 3 starts rotating under the simultaneous driving of the second input end 11 and the third input end 12, and the rotating speed of the second output end 15 is higher under the driving of the second input end 11 and the third input end 12, the technical problem that the energy consumption of a driving motor is higher during the high-speed running of the vehicle in the prior art is solved, and the technical effect that the rotating speed of the driving motor is lower during the high-speed running of the vehicle, so that the energy consumption of the driving motor is lower is achieved.
In an alternative embodiment, the speed change mechanism comprises a sliding gear 8, a first gear 5, a second gear 6 and a third gear 7, wherein the first gear 5, the second gear 6 and the third gear 7 are arranged in parallel and at intervals, the sliding gear 8 is selectively meshed with the first gear 5, the second gear 6 or the third gear 7, and the sliding gear 8 is connected with a third input end 12.
In the above embodiment, the first gear 5, the second gear 6 and the third gear 7 may be gears of the same size and shape, or gears of different sizes may be used, wherein the first gear 5 is disposed 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 each other and spaced apart, and the second gear 6 and the third gear 7 are not equidistant from the first gear 5, further, the sliding gear 8 may be disposed in one, the sliding gear 8 is disposed on one connecting shaft and drives the sliding gear 8 to move via the connecting shaft, so that the sliding gear 8 is engaged with the first gear 5, the second gear 6 and the third gear 7, respectively, thereby realizing transmission of the first gear, the second gear 6 and the third gear 7, or the sliding gear 8 may be disposed in three, respectively, and when each gear is connected, the other two gears are idle, so as to avoid damage caused by simultaneous engagement of the two gears, and when the first gear 5, the second gear 6 and the third gear 8 are disposed between the first gear 5 and the third gear 8, and the sliding gear 8 may be disposed between the first gear 5 and the second gear 8.
Alternatively, the three sliding gears 8 may be disposed on the same sides of the first gear 5, the second gear 6 and the third gear 7, that is, a sliding gear 8 is disposed between the first gear 5 and the second gear 6, a sliding gear 8 is disposed between the first gear 5 and the third gear 7, and a sliding gear 8 is disposed on a side of the third gear 7 facing away from the first gear 5, and the three sliding gears 8 are driven by the connecting shaft, so that each sliding gear 8 may be connected to the first gear 5, the second gear 6 and the third gear 7.
In an alternative embodiment, the first gear wheel 5 is fixedly arranged, the second gear wheel 6 is connected to the second output 15 and the total output 17, and the third gear wheel 7 is connected to the drive 1.
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 12 of the second planetary row 3 is fixed, at this time, the rotation speed input through the second input 11 is reduced by the second planetary row 3 and then directly output from the second output 15 to the total output 17, at this time, the speed of the total output 17 is minimum, and when the sliding gear 8 is connected to the second gear 6, the sliding gear 8 is connected to the third input 12, and the second gear 6 is connected to the second output 15, so that the rotation speed of the second output 15 is the same as that of the third input 12, that is, the rotation speed input through the second input 11 is directly output through the second output 15 without reduction, at this time, the rotation speed of the second input 11 is the same as that of the second output 15, at this time, the speed of the total output 17 should be the same as that of the first output 14, and does not pass through the second reduction of the second output 3, and when the sliding gear 8 is connected to the third gear 6, the driving member 1 drives the sliding gear 8 through the third gear 7, and drives the sliding gear 8, and the second planetary row 3, and the rotation speed of the second planetary row 11 is increased, and the rotation speed of the second planetary row 11 is simultaneously, and the rotation speed of the second planetary row is increased, the second planetary row is driven by the third planetary row 3, and the rotation speed of the second input is the second input 3, and the third planetary row is the rotation speed, and the rotation speed is the rotation speed and the first planetary output speed, and the speed is the speed and the speed, and the speed is output.
Alternatively, fig. 1 is a schematic structural view of the first gear 5 connected to the sliding gear 8, fig. 2 is a schematic structural view of the second gear 6 connected to the sliding gear 8, and fig. 3 is a schematic structural view of the third gear 7 connected to the sliding gear 8.
In an alternative embodiment, the first planet row 2 comprises a first sun gear, a first planet wheel, a first planet carrier and a first gear ring, wherein the first sun gear is provided with a first input end 10, a plurality of first planet wheels are arranged, each first planet wheel is meshed with the first sun gear, each first planet wheel is rotationally connected with the first planet carrier, the first planet carrier is provided with a first output end 14, the first gear ring is sleeved on the plurality of first planet wheels, and the first gear ring is meshed with the plurality of first planet wheels respectively.
In an alternative embodiment, the first ring gear is fixedly arranged.
In the above embodiment, the diameter of the first sun gear may be larger than that of the first planet gears, and the outer surface of the first sun gear, the outer surface of the first planet gears, and the inner surface of the first ring gear may be provided with helical teeth to increase the connection area between the first sun gear, the first planet gears, and the first ring gear, wherein four first planet gears are disposed around the first sun gear, each first planet gear is rotatably connected to the first planet carrier through a rotation column, a first ring gear is sleeved outside the four first planet gears, and the first ring gear may be fixed in the transmission, and be provided with first input 10 on the first sun gear, first input 10 can set up to the flange, driving piece 1 can be connected with first sun gear through the flange, so that driving piece 1 can drive first sun gear rotation, and under the fixed circumstances of first ring gear, first sun gear can drive a plurality of first planet gears and rotate, a plurality of first planet gears can drive first planet carrier motion in step, so that first output 14 on the first planet carrier can be with the rotational speed output after the speed reduction, wherein, first output 14 can set up as the pivot, first output 14 is with the rotational speed output to the second planet row 3.
In an alternative embodiment, the second planet row 3 comprises a second sun gear, second planet gears, a second planet carrier and a second gear ring, a plurality of second planet gears are connected around the second sun gear in a meshed mode, the second planet carrier is respectively connected with each second planet gear in a rotating mode, the second gear ring is arranged on the plurality of second planet gears, the second gear ring is respectively meshed with the plurality of second planet gears, a second input end 11 connected with the first output end 14 is arranged on the second gear ring, a third input end 12 connected with the first output end 14 is arranged on the second sun gear, and a second output end 15 connected with the total output end 17 is arranged on the second planet carrier.
In the above embodiment, the diameter of the second sun gear may be larger than that of the second planet gear, the outer surface of the second sun gear, the outer surface of the second planet gear and the inner surface of the second gear ring may be provided with helical teeth, so as to increase the connection area between the second sun gear, the second planet gear and the second gear ring, wherein four second planet gears are disposed around the second sun gear, each second planet gear is disposed in square shape, each second planet gear is rotatably connected to the second planet carrier through a rotation post, a second gear ring is sleeved outside the four second planet gears, a third input end 12 is disposed on the second sun gear, a second input end 11 may be disposed on the second gear ring, the second input end 11 and the third input end 12 may be configured as flanges, the first output end 14 may be connected with the second sun gear through the flanges, so that the first planet carrier may drive the second gear ring to rotate, the sliding gear 8 may also be connected with the second sun gear, when the second sun gear driven by the sliding gear 8 rotates, the first planet carrier may drive the second planet gear to rotate, and the second planet carrier may be more than the second planet gear ring gear may be driven by the second planet carrier to rotate, and the second planet carrier may be more than the second planet carrier may be driven by the second planet carrier to rotate at a higher rotation speed than the second gear ring gear, and the second planet motor may be more than the second planet carrier may be driven by the second planet carrier may rotate at a higher rotation speed.
In an alternative embodiment, the planetary gear system further comprises a third planetary gear system 4, a fourth input end 13 connected with the speed change mechanism and a second output end 15 respectively is arranged on the third planetary gear system 4, and a third output end 16 connected with a total output end 17 is also arranged on the third planetary gear system 4.
In the above embodiment, the third planetary row 4 may be disposed between the total output 17 and the transmission mechanism, the third planetary row 4 may be disposed parallel to the second planetary row 3, the fourth input 13 may be disposed as a flange, the fourth input 13 may be connected to the second gear 6 and the second carrier in the transmission mechanism, respectively, and after the second output 15 transmits the rotation speed to the fourth driving section, the rotation speed is decelerated by the third planetary row 4 and then outputted to the total output 17 through the third output 16 of the third planetary row 4, thereby enhancing the driving force to the total output 17.
In an alternative embodiment, the third planet row 4 comprises a third sun gear, third planet gears, a third planet carrier and a third gear ring, the periphery of the third sun gear is respectively meshed with the third planet gears, each third planet gear is respectively connected with the third planet carrier in a rotating mode, the third gear ring is sleeved on each third planet gear, the third gear ring is respectively meshed with each third planet gear, the third gear ring is fixedly arranged, a fourth input end 13 is arranged on the third sun gear, and a third output end 16 is arranged on the third planet carrier.
In the above embodiment, the diameter of the third sun gear may be larger than that of the third planet gear, the outer surface of the third sun gear, the outer surface of the third planet gear and the inner surface of the third ring gear may be provided with helical teeth to increase the connection area between the third sun gear, the third planet gear and the third ring gear, four third planet gears are arranged around the third sun gear, each third planet gear is rotatably connected to the third planet carrier through a rotation column, a third ring gear is sleeved outside the four third planet gears, a fourth input end 13 is provided on the third sun gear, a third output end 16 is provided on the third planet carrier, the second input end 11 and the third input end 12 may be provided as flanges, the second planet carrier may be connected to the third sun gear through a connection shaft, the second gear 6 may also be provided on the connection shaft, and the third ring gear is fixed in the gearbox, so that the rotation speed conveyed through the second planet carrier can be output through the third sun gear, the third planet carrier and the third planet carrier through the third planet carrier.
In an alternative embodiment, the differential gear 9 is further comprised, and a total output end 17 is arranged on the differential gear 9, and the differential gear 9 is respectively connected with the third planetary row 4, the speed change mechanism and the second planetary row 3.
In the above embodiment, the total output 17 may be configured as a flange connected to the input of the differential 9, and the total output 17 may be connected to the third output 16 through a connecting shaft, that is, the input of the differential 9 may be connected to the third carrier through a connecting shaft, so that the third carrier may drive the differential 9 to rotate through the connecting shaft when rotating, so that power is distributed to the left and right half shafts through the differential 9, and then distributed to the driving wheels on the left and right sides through the left and right half shafts, respectively, to drive the vehicle to move.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. A vehicle transmission device is characterized by comprising a driving piece, a first planetary row, a second planetary row and a speed change mechanism;
The driving piece is connected with a first input end of the first planetary row, a first output end of the first planetary row is connected with a second input end of the second planetary row, and a second output end of the second planetary row is connected with a total output end;
The speed change mechanism is connected with a third input end of the second planetary gear set, is connected with the driving piece, is also respectively connected with the second output end and the total output end, and is used for controlling 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 in parallel and at intervals, the sliding gear is selectively meshed with the first gear, the second gear or the third gear, and the sliding gear is connected with the third input end;
The second planet row comprises a second sun gear, second planet gears, a second planet carrier and a second gear ring, wherein a plurality of second planet gears are connected with the second sun gear in a circumferential meshing manner, the second planet carrier is respectively connected with each second planet gear in a rotating manner, the second gear ring is arranged on the plurality of second planet gears, and the second gear ring is respectively meshed with the plurality of second planet gears;
The second gear ring is provided with the second input end connected with the first output end, the second sun gear is provided with the third input end connected with the first output end, and the second planet carrier is provided with the second output end connected with the total output end;
the second gear ring is connected with the sliding gear.
2. The vehicle transmission according to claim 1, wherein the first gear is fixedly provided, the second gear is connected to the second output and the total output, and the third gear is connected to the driving member.
3. The vehicle transmission of claim 1, wherein the first row of planet gears includes a first sun gear, a first planet gear, a first carrier, and a first ring gear, the first sun gear having the first input disposed thereon, the first planet gears having a plurality of first planet gears, each of the first planet gears being in meshing engagement with the first sun gear, each of the first planet gears being rotatably connected to the first carrier, the first carrier having the first output disposed thereon;
the first gear rings are sleeved on the plurality of first planet gears, and the first gear rings are meshed with the plurality of first planet gears respectively.
4. A vehicle transmission according to claim 3, wherein the first ring gear is fixedly disposed.
5. The vehicle transmission of claim 1, further comprising a third planetary row;
The third planetary row is provided with a fourth input end which is respectively connected with the speed change mechanism and the second output end, and the third planetary row is also provided with a third output end which is connected with the total output end.
6. The vehicle transmission device according to claim 5, wherein the third planetary gear row includes a third sun gear, third planetary gears, a third carrier, and a third ring gear, the third sun gear is engaged with the plurality of third planetary gears, each of the third planetary gears is rotatably connected with the third carrier, the third ring gear is sleeved on each of the third planetary gears, the third ring gear is engaged with each of the third planetary gears, the third ring gear is fixedly provided, the third sun gear is provided with the fourth input end, and the third carrier is provided with the third output end.
7. The vehicle transmission of claim 5, further comprising a differential;
the differential mechanism is provided with the total output end and is respectively connected with the third planetary row, the speed change mechanism and the second planetary row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411337541.3A CN118849747B (en) | 2024-09-25 | 2024-09-25 | Vehicle transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2804497Y (en) * | 2005-04-25 | 2006-08-09 | 于春起 | Rear axle eight-bar speed box |
| CN220500396U (en) * | 2023-08-09 | 2024-02-20 | 江苏零一汽车科技有限公司 | Coaxial single-motor three-gear sequence gear shifting electric drive bridge system |
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| CN106763565B (en) * | 2016-12-01 | 2018-09-25 | 中国北方车辆研究所 | The three gear planet speed change mechanisms used suitable for electric vehicle |
| DE102017129589A1 (en) * | 2017-12-12 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Epicyclic differential |
| CN111853181B (en) * | 2020-06-19 | 2022-09-23 | 中国北方车辆研究所 | Three-gear planetary transmission applicable to high-rotation-speed electric drive |
| CN116018287A (en) * | 2020-12-24 | 2023-04-25 | 浙江吉利控股集团有限公司 | A single-motor multi-mode hybrid power system and hybrid vehicle |
| CN218777398U (en) * | 2022-11-23 | 2023-03-31 | 江苏华永复合材料有限公司 | Three-gear electric drive bridge structure |
| CN116733945A (en) * | 2023-07-06 | 2023-09-12 | 上海汽车集团股份有限公司 | Single-planet-wheel type three-gear speed reducer assembly, electric drive axle and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804497Y (en) * | 2005-04-25 | 2006-08-09 | 于春起 | Rear axle eight-bar speed box |
| CN220500396U (en) * | 2023-08-09 | 2024-02-20 | 江苏零一汽车科技有限公司 | Coaxial single-motor three-gear sequence gear shifting electric drive bridge system |
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