CN113931979A - Speed change mechanism of vehicle and vehicle with same - Google Patents

Speed change mechanism of vehicle and vehicle with same Download PDF

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Publication number
CN113931979A
CN113931979A CN202010603747.1A CN202010603747A CN113931979A CN 113931979 A CN113931979 A CN 113931979A CN 202010603747 A CN202010603747 A CN 202010603747A CN 113931979 A CN113931979 A CN 113931979A
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China
Prior art keywords
gear
driven
driven gear
shaft
driving
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Granted
Application number
CN202010603747.1A
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Chinese (zh)
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CN113931979B (en
Inventor
刘华朝
王逢春
华煜
储昭伟
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BYD Co Ltd
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BYD Co Ltd
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Publication date
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Priority to CN202010603747.1A priority Critical patent/CN113931979B/en
Publication of CN113931979A publication Critical patent/CN113931979A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
    • F16H3/22—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially
    • F16H3/30—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial
    • F16H3/32—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear with gears shiftable only axially with driving and driven shafts not coaxial and an additional shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/006—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising eight forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0082—Transmissions for multiple ratios characterised by the number of reverse speeds
    • F16H2200/0086—Transmissions for multiple ratios characterised by the number of reverse speeds the gear ratios comprising two reverse speeds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a vehicle speed change mechanism and a vehicle with the same, wherein the vehicle speed change mechanism comprises: the first input shaft is connected with the engine through a first clutch; the second input shaft is connected with the engine through a second clutch, and a plurality of driving gears are arranged on the first input shaft and the second input shaft; the transmission shaft is sleeved on the first output shaft in an empty mode, and the first output shaft, the transmission shaft and the second output shaft are provided with a plurality of synchronizers and a plurality of driven gears meshed with the driving gears; and one gear of the speed change mechanism realizes power transmission through the driving gear and the driven gear which share other gears. The speed change mechanism has the advantages of low cost, small size and the like.

Description

Speed change mechanism of vehicle and vehicle with same
Technical Field
The invention relates to the technical field of vehicles, in particular to a speed change mechanism of a vehicle and the vehicle with the speed change mechanism.
Background
In the speed change mechanism of the vehicle in the related art, two clutches are usually arranged to improve the shifting smoothness, the gear transmission groups can be arranged in parallel, the size of the speed change mechanism is reduced, a plurality of gears can be arranged on the premise of the same external dimension, and the dynamic property, the economical efficiency and the grade of the whole vehicle are obviously improved. The provision of the shift structure still has the problems of high cost and large radial dimension.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a transmission mechanism for a vehicle, which has advantages of low cost, small size, and the like.
In order to achieve the above object, according to a first aspect embodiment of the present invention, there is provided a transmission mechanism of a vehicle, including: the first input shaft is connected with the engine through a first clutch; the second input shaft is connected with the engine through a second clutch, and a plurality of driving gears are arranged on the first input shaft and the second input shaft; the transmission shaft is sleeved on the first output shaft in an empty mode, and the first output shaft, the transmission shaft and the second output shaft are provided with a plurality of synchronizers and a plurality of driven gears meshed with the driving gears; and one gear of the speed change mechanism realizes power transmission through the driving gear and the driven gear which share other gears.
The vehicle speed change mechanism has the advantages of low cost, small size and the like.
According to some embodiments of the present invention, the plurality of driving gears includes a second-gear driving gear, a fourth-gear driving gear, a sixth-eight gear driving gear, a third-fifth gear driving gear and a seventh-gear driving gear, the second-gear driving gear, the fourth-gear driving gear and the sixth-eight gear driving gear are fixed to the first input shaft, and the third-fifth gear driving gear and the seventh-gear driving gear are fixed to the second input shaft; the plurality of driven gears comprise a fifth-gear driven gear, a seventh-gear driven gear, an eighth-gear driven gear, a second-gear driven gear, a third-gear driven gear, a fourth-gear driven gear and a sixth-gear driven gear, the fifth-gear driven gear is sleeved on the first output shaft in a free mode and is meshed with the third-fifth-gear driving gear, the seven-gear driven gear is fixed on the transmission shaft and is meshed with the seven-gear driving gear, the eight-gear driven gear is sleeved on the transmission shaft in a free mode and is meshed with the six-eight-gear driving gear, the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the sixth-gear driven gear are sleeved on the second output shaft in a hollow manner, the second-gear driven gear is meshed with the second-gear driving gear, the third-gear driven gear is meshed with the third-gear driving gear, the four-gear driven gear is meshed with the four-gear driving gear, and the six-gear driven gear is meshed with the six-eight-gear driving gear; the plurality of synchronizers comprise a fifth-seventh gear synchronizer, an eighth-reverse gear synchronizer, a third-sixth gear synchronizer and a second-fourth gear synchronizer, the fifth-seventh gear synchronizer is arranged on the first output shaft and is positioned between the fifth-gear driven gear and the transmission shaft, the eighth-reverse gear synchronizer is arranged on the transmission shaft and is adjacent to the eighth-gear driven gear, the third-sixth gear synchronizer is arranged on the second output shaft and is positioned between the third-gear driven gear and the sixth-gear driven gear, and the second-fourth gear synchronizer is arranged on the second output shaft and is positioned between the second-gear driven gear and the fourth-gear driven gear; the first gear of the speed change mechanism realizes power transmission through the seven-gear driving gear, the seven-gear driven gear, the six-eight-gear driving gear, the eight-gear driven gear, the two-gear driving gear and the two-gear driven gear.
According to some embodiments of the present invention, the second input shaft is hollow and sleeved on the first input shaft, a portion of the first input shaft extends out of the second input shaft, and the second gear driving gear, the fourth gear driving gear and the sixth and eighth gear driving gear are located on the portion of the first input shaft extending out of the second input shaft.
According to some embodiments of the invention, the second gear driving gear is located at an end of the first input shaft away from the engine, and the fourth gear driving gear is located between the second gear driving gear and the sixth-eighth gear driving gear;
the third and fifth gear drive gear is closer to the engine than the seventh gear drive gear.
According to some embodiments of the invention, the fifth-gear driven gear is located at an end of the transmission shaft facing the engine.
According to some embodiments of the invention, the seven-speed driven gear is located at an end of the propeller shaft adjacent to the engine, and the eight-speed driven gear is located between the seven-speed driven gear and the eight-reverse synchronizer.
According to some specific embodiments of the invention, the third-gear driven gear is located at an end of the second output shaft adjacent to the engine, the second-gear driven gear is located at an end of the second output shaft away from the engine, the sixth-gear driven gear is located between the third-gear driven gear and the second-gear driven gear, and the fourth-gear driven gear is located between the sixth-gear driven gear and the second-gear driven gear.
According to some embodiments of the present invention, the plurality of driven gears further includes a reverse driven gear that is hollow around the transmission shaft, the reverse driven gear is engaged with the second driven gear, and the eight reverse synchronizer is located between the eight reverse driven gear and the reverse driven gear.
According to some embodiments of the present invention, the vehicle transmission mechanism further comprises: the driving shaft is provided with a fixed driving gear, the first output shaft is provided with a fixed first output gear, the second output shaft is provided with a fixed second output gear, and the driving gear is respectively meshed with the first output gear and the second output gear.
According to an embodiment of a second aspect of the invention, a vehicle is proposed, which includes the transmission mechanism of the vehicle according to the embodiment of the first aspect of the invention.
According to the vehicle of the second aspect of the present invention, the vehicle transmission mechanism according to the first aspect of the present invention has the advantages of low cost, high space utilization rate, and the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a vehicular transmission mechanism according to an embodiment of the invention, in which a chain line indicates a meshing relationship.
Fig. 2 is a schematic diagram of the position of the first gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is the power transmission route and the chain line is the meshing relationship schematic line.
Fig. 3 is a schematic diagram of the position of the second gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is a power transmission route and the chain line is a line indicating the meshing relationship.
Fig. 4 is a schematic diagram of the position of third gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is a power transmission route and the chain line is a line indicating the meshing relationship.
Fig. 5 is a schematic diagram of the position of the fourth gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is a power transmission route and the chain line is a line indicating the meshing relationship.
Fig. 6 is a schematic diagram of the position of the fifth gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is a power transmission route and the chain line is a line indicating the meshing relationship.
Fig. 7 is a schematic diagram of the position of the sixth gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is the power transmission route and the chain line is the meshing relationship schematic line.
Fig. 8 is a schematic position diagram of a seventh gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which a broken line is a power transmission route and a chain line is a line indicating a meshing relationship.
Fig. 9 is a schematic position diagram of eight speeds of the transmission mechanism of the vehicle according to the embodiment of the invention, in which a broken line is a power transmission route and a chain line is a line indicating the meshing relationship.
Fig. 10 is a position diagram of a reverse gear of a transmission mechanism of a vehicle according to an embodiment of the invention, in which a broken line is a power transmission route and a chain line is a meshing relationship schematic line.
Fig. 11 is another position diagram of the reverse gear of the transmission mechanism of the vehicle according to the embodiment of the invention, in which the broken line is a power transmission route and the chain line is a meshing relationship diagram line.
Fig. 12 is a schematic structural view of a vehicular transmission mechanism according to another embodiment of the invention, in which the chain line is an engagement relationship indicating line.
Reference numerals:
a speed change mechanism 1,
A first input shaft 100, a first clutch 110, a second gear driving gear 120, a fourth gear driving gear 130, a sixth and eighth gear driving gear 140, a sixth gear driving gear 150, an eighth gear driving gear 160, a fifth gear driving gear 120, a sixth gear driving gear 150, a sixth gear driving gear 160, a sixth gear driving gear, a sixth gear driving gear, a fourth gear, a sixth gear, a fourth gear, a sixth gear, a fourth gear, and a seventh gear,
A second input shaft 200, a second clutch 210, a third-fifth gear driving gear 220, a seventh gear driving gear 230, a fifth gear driving gear,
A first output shaft 300, a fifth-gear driven gear 310, a fifth-seventh-gear synchronizer 320, a first output gear 330,
A propeller shaft 400, a seven-gear driven gear 410, an eight-gear driven gear 420, an eight-reverse synchronizer 430, a reverse driven gear 440, a,
A second output shaft 500, a second-gear driven gear 510, a third-gear driven gear 520, a fourth-gear driven gear 530, a sixth-gear driven gear 540, a third-sixth-gear synchronizer 550, a second-fourth-gear synchronizer 560, a second output gear 570,
An engine 600,
Drive shaft 700, drive gear 710.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "left", "right", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more.
A transmission mechanism 1 of a vehicle according to an embodiment of the invention is described below with reference to the drawings.
As shown in fig. 1 to 11, a transmission mechanism 1 of a vehicle according to an embodiment of the present invention includes a first input shaft 100, a second input shaft 200, a first output shaft 300, a propeller shaft 400, and a second output shaft 500.
The first input shaft 100 is connected with the engine 600 through the first clutch 110, the second input shaft 200 is connected with the engine 600 through the second clutch 210, the first input shaft 100 and the second input shaft 200 are provided with a plurality of driving gears, the transmission shaft 400 is sleeved in the first output shaft 300 in a hollow manner, the first output shaft 300, the transmission shaft 400 and the second output shaft 500 are provided with a plurality of synchronizers and a plurality of driven gears engaged with the plurality of driving gears, wherein the first gear of the speed change mechanism 1 realizes power transmission through the driving gears and the driven gears of other gears.
According to the transmission mechanism 1 of the embodiment of the present invention, the first input shaft 100 is connected to the engine 600 through the first clutch 110, and the second input shaft 200 is connected to the engine 600 through the second clutch 210, so that two clutches are provided, and the uninterrupted shifting power of the transmission mechanism 1 can be realized.
In addition, the first input shaft 100 and the second input shaft 200 are provided with a plurality of driving gears, the transmission shaft 400 is freely sleeved on the first output shaft 300, the transmission shaft 400 and the second output shaft 500 are provided with a plurality of synchronizers and a plurality of driven gears engaged with the plurality of driving gears, wherein the first gear of the speed change mechanism 1 realizes the transmission of power through the driving gears and the driven gears of other gears. Compared with the vehicle speed change mechanism in the related art, the vehicle speed change mechanism 1 in the invention can realize the first-gear function through multi-stage transmission and repeated utilization of other gear gears without independently arranging a first-gear driving gear and a first-gear driven gear, so that the first-gear driving gear and the first-gear driven gear can be omitted, the number of the driving gears and the driven gears is reduced, the whole size of the speed change mechanism 1 is reduced, and the cost is reduced.
Since the synchronizers are used in cooperation with the driven gears and/or the transmission shaft 400, the number of synchronizers to be used can be reduced by reducing the number of the driven gears, thereby further reducing the overall size of the transmission mechanism 1 and further reducing the cost.
Thus, the vehicle speed change mechanism according to the embodiment of the invention has the advantages of low cost, small size and the like.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the plurality of driving gears includes a second driving gear 120, a fourth driving gear 130, a sixth eight driving gear 140, a third five driving gear 220, and a seventh eight driving gear 230, the second driving gear 120, the fourth driving gear 130, and the sixth eight driving gear 140 are fixed to the first input shaft 100, and the third five driving gear 220 and the seventh driving gear 230 are fixed to the second input shaft 200.
The plurality of driven gears include a fifth-gear driven gear 310, a seventh-gear driven gear 410, an eighth-gear driven gear 420, a second-gear driven gear 510, a third-gear driven gear 520, a fourth-gear driven gear 530, and a sixth-gear driven gear 540, the fifth-gear driven gear 310 is freely sleeved on the first output shaft 300 and meshed with the third-fifth-gear driving gear 220, the seventh-gear driven gear 410 is fixed on the transmission shaft 400 and meshed with the seventh-gear driving gear 230, the eighth-gear driven gear 420 is freely sleeved on the transmission shaft 400 and meshed with the sixth-eighth-gear driving gear 410, the second-gear driven gear 510, the third-gear driven gear 520, the fourth-gear driven gear 530 and the sixth-gear driven gear 540 are freely sleeved on the second output shaft 500, the second-gear driven gear 510 is meshed with the second-gear driving gear 120, the third-gear driven gear 520 is meshed with the third-gear driving gear, the fourth-gear driven gear 530 is meshed with the fourth-gear driving gear 130, and the sixth-gear driven gear 540 is meshed with the sixth-eighth-gear driving gear 140.
The plurality of synchronizers includes a fifth-seventh-speed synchronizer 320, an eighth-reverse-speed synchronizer 430, a third-sixth-speed synchronizer 550 and a second-fourth-speed synchronizer 560, the fifth-seventh-speed synchronizer 320 is disposed on the first output shaft 300 and located between the fifth-speed driven gear 310 and the transmission shaft 400, the eighth-reverse-speed synchronizer 430 is disposed on the transmission shaft 400 and adjacent to the eighth-speed driven gear 420, the third-sixth-speed synchronizer 550 is disposed on the second output shaft 500 and located between the third-speed driven gear 520 and the sixth-speed driven gear 540, and the second-fourth-speed synchronizer 560 is disposed on the second output shaft 500 and located between the second-speed driven gear 510 and the fourth-speed driven gear 530.
For example, the fifth-seventh gear synchronizer 320 may rotate the fifth-gear driven gear 310 and the first output shaft 300 synchronously, the fifth-seventh gear synchronizer 320 may also rotate the transmission shaft 400 and the first output shaft 300 synchronously, and when the transmission shaft 400 and the first output shaft 300 rotate synchronously, the fifth-seventh gear synchronizer 320 may be engaged with the transmission shaft 400. And the central axis of the first input shaft 100 and the central axis of the second input shaft 200 may coincide with each other, the central axis of the first output shaft 300 and the central axis of the propeller shaft 400 may coincide with each other, and the central axis of the first input shaft 100, the central axis of the first output shaft 300 and the second output shaft 500 may be parallel to each other.
It will be understood by those skilled in the art that the two objects are fixed and can rotate synchronously, for example, the first input shaft 100 is provided with the two-gear driving gear 120, i.e. the relative position between the two-gear driving gear 120 and the first input shaft 100 is stable, and the two-gear driving gear 120 can rotate synchronously with the first input shaft 100. The empty sleeve means that one object is sleeved on the other object, the axial extension directions of the two objects are the same, the two objects are relatively fixed in the axial direction and the radial direction and can relatively rotate in the circumferential direction, for example, the first output shaft 300 is provided with an empty sleeve fifth-gear driven gear 310, that is, the fifth-gear driven gear 310 is sleeved on the first output shaft 300, wherein the fifth-gear driven gear 310 and the first output shaft 300 are fixed in the radial direction and the axial direction of the first output shaft 300, and the fifth-gear driven gear 310 and the first output shaft 300 can relatively rotate in the circumferential direction of the first output shaft 300.
The first gear of the transmission 1 transmits power through the common seven-gear drive gear 230, the seven-gear driven gear 410, the six-eight-gear drive gear 140, the eight-gear driven gear 160, the second-gear drive gear 120, and the second-gear driven gear 510. As shown in fig. 2, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the first gear function is implemented as follows:
first, the second input shaft 200 is connected to the engine 600 through the second clutch 210, the engine 600 drives the second input shaft 200 to rotate, and the seventh gear driving gear 230 and the second input shaft 200 rotate synchronously; then, the seven-gear driving gear 230 drives the transmission shaft 400 to rotate by being engaged with the seven-gear driven gear 410, and the eight reverse gear synchronizer 430 is matched with the eight-gear driven gear 420 to realize synchronous rotation of the eight-gear driven gear 420 and the transmission shaft 400; secondly, the eight-gear driven gear 420 drives the first input shaft 100 to rotate by being engaged with the six-eight-gear driving gear 140; finally, the second-fourth gear synchronizer 560 cooperates with the second-fourth gear driven gear 510 to realize synchronous rotation of the second-fourth gear driven gear 510 and the second output shaft 500, the second-fourth gear driving gear 120 rotates synchronously with the first input shaft 100, and the second-fourth gear driving gear 120 drives the second output shaft 500 to rotate by meshing with the second-fourth gear driven gear 510. In this manner, the power of the engine 600 can be output by the rotation of the second output shaft 500, and the transmission mechanism 1 of the vehicle can realize the first-gear function by the multi-gear transmission. Compared with the vehicle speed change mechanism in the related art, the vehicle speed change mechanism 1 in the invention can realize the first gear function through multi-stage transmission without independently arranging a first gear driving gear and a first gear driven gear, thereby reducing the number of gears, further reducing the size of the speed change mechanism 1 and lowering the cost.
As shown in fig. 3, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the second gear function is as follows:
the first input shaft 100 is connected to the engine 600 through the first clutch 110, the second-fourth gear synchronizer 560 is matched with the second gear driven gear 510 to realize synchronous rotation of the second gear driven gear 510 and the second output shaft 500, the second gear driving gear 120 is synchronous rotation with the first input shaft 100, the second gear driving gear 120 is meshed with the second gear driven gear 510 to drive the second output shaft 500 to rotate, so that the power of the engine 600 can be output through rotation of the second output shaft 500, and the speed change mechanism 1 of the vehicle can realize a second gear function.
As shown in fig. 4, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the third gear function is as follows:
the second input shaft 200 is connected to the engine 600 through the second clutch 210, the third-sixth gear synchronizer 550 and the third-fifth gear driven gear 520 cooperate to realize synchronous rotation of the third-fifth gear driven gear 520 and the second output shaft 500, the third-fifth gear driving gear 220 and the second input shaft 200 rotate synchronously, the third-fifth gear driving gear 220 drives the second output shaft 500 to rotate by meshing with the third-fifth gear driven gear 520, so that the power of the engine 600 can be output through rotation of the second output shaft 500, and the speed change mechanism 1 of the vehicle can realize a third gear function.
As shown in fig. 5, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the fourth gear function is as follows:
the first input shaft 100 is connected to the engine 600 through the first clutch 110, the second-fourth synchronizer 560 and the fourth driven gear 530 cooperate to realize synchronous rotation of the fourth driven gear 530 and the second output shaft 500, the fourth driving gear 130 rotates synchronously with the first input shaft 100, and the fourth driving gear 130 drives the second output shaft 500 to rotate by meshing with the fourth driven gear 530, so that the power of the engine 600 can be output through rotation of the second output shaft 500, and the transmission mechanism 1 of the vehicle can realize a fourth gear function.
As shown in fig. 6, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the fifth gear function is as follows:
the second input shaft 200 is connected to the engine 600 through the second clutch 210, the fifth-seventh gear synchronizer 320 and the fifth-fifth gear driven gear 310 cooperate to realize synchronous rotation of the fifth-gear driven gear 310 and the first output shaft 300, the third-fifth gear driving gear 220 and the first input shaft 100 rotate synchronously, the third-fifth gear driving gear 220 drives the first output shaft 300 to rotate by meshing with the fifth-gear driven gear 310, so that the power of the engine 600 can be output through rotation of the first output shaft 300, and the transmission mechanism 1 of the vehicle can realize a fifth gear function.
As shown in fig. 7, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the sixth gear function is as follows:
the first input shaft 100 is connected to the engine 600 through the first clutch 110, the third-sixth gear synchronizer 550 and the sixth gear driven gear 540 cooperate to realize synchronous rotation of the sixth gear driven gear 540 and the second output shaft 500, the sixth-eighth gear driving gear 140 and the first input shaft 100 rotate synchronously, the sixth-eighth gear driving gear 140 drives the second output shaft 500 to rotate by meshing with the sixth gear driven gear 540, so that the power of the engine 600 can be output through rotation of the second output shaft 500, and the transmission mechanism 1 of the vehicle can realize a sixth gear function.
As shown in fig. 8, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the process of implementing the seven-speed function is as follows:
the second input shaft 200 is connected to the engine 600 through the second clutch 210, the fifth-seventh gear synchronizer 320 and the transmission shaft 400 (or the seventh gear driven gear 410) cooperate to realize synchronous rotation of the seventh gear driven gear 410 and the first output shaft 300, the seventh gear driving gear 230 and the second input shaft 200 rotate synchronously, the seventh gear driving gear 230 drives the first output shaft 300 to rotate by meshing with the seventh gear driven gear 410, so that the power of the engine 600 can be output through the rotation of the first output shaft 300, and the transmission mechanism 1 of the vehicle can realize a seventh gear function.
As shown in fig. 9, according to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, the eight speed function is implemented as follows:
the first input shaft 100 is connected with the engine 600 through the first clutch 110, the fifth-seventh gear synchronizer 320 is matched with the transmission shaft 400 to realize synchronous rotation between the transmission shaft 400 and the first output shaft 300, the eighth-reverse gear synchronizer 430 is matched with the eighth-gear driven gear 420 to realize synchronous rotation between the eighth-gear driven gear 420 and the transmission shaft 400, the sixth-eighth gear driving gear 140 is synchronously rotated with the first input shaft 100, the sixth-eighth gear driving gear 140 is meshed with the eighth-gear driven gear 420 to drive the transmission shaft 400 to rotate, the first output shaft 300 is synchronously rotated with the transmission shaft 400, so that power of the engine 600 can be output through rotation of the first output shaft 300, and the speed change mechanism 1 of the vehicle can realize an eighth-gear function.
Through the brief description of the process of realizing the functions of the gears of the speed change mechanism 1 of the vehicle, it can be known that the speed change mechanism 1 of the vehicle can realize the control and the change of eight gears, and further improve the dynamic property and the economical efficiency of the whole vehicle. And two keep off to eight keep off and be the two-stage transmission, transfer path is short, and efficiency is higher. In this way, the vehicle transmission mechanism 1 according to the embodiment of the present invention has the advantages of low cost, small size, etc. while realizing eight gears.
As shown in fig. 12, the six-eight speed drive gear 140 of the vehicle transmission mechanism 1 according to the present invention may be separately provided as a six speed drive gear 150 and an eight speed drive gear 160, wherein the six speed drive gear 150 is engaged with a six speed driven gear 540, and the eight speed drive gear 160 is engaged with an eight speed driven gear 420.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the second input shaft 200 is freely sleeved on the first input shaft 100, that is, the second input shaft 200 is sleeved on the first input shaft 100 and the second input shaft 200 is rotatable relative to the first input shaft 100, a portion of the first input shaft 100 extends out of the second input shaft 200, and the second driving gear 120, the fourth driving gear 130 and the sixth driving gear 140 are located on a portion of the first input shaft 100 extending out of the second input shaft 200. In this way, the size of the transmission mechanism 1 can be further reduced.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the fifth driven gear 310 is located at an end of the driving shaft 400 facing the engine 600.
Further, a seven-speed driven gear 410 is located at an end of the propeller shaft 400 adjacent to the engine 600, and an eight-speed driven gear 420 is located between the seven-speed driven gear 410 and the eight reverse synchronizer 430.
Since the transmission shaft 400 is sleeved on the first output shaft 300, the fifth-gear driven gear 310 is located at an end of the first output shaft 300 adjacent to the engine 600, and the seventh-gear driven gear 410 and the eighth-gear driven gear 420 are located at a middle portion of the first output shaft 300. In this way, in the first output shaft 300, the low gear (the fifth gear driven gear 310) is located at both ends of the first output shaft 300, and the high gear (the seventh gear driven gear 410 and the eighth gear driven gear 420) is located in the middle of the first output shaft 300, and since the force applied to the shaft is larger when the low gear is larger than the force applied to the high gear, the low gear is disposed at the end of the first output shaft 300, so that the deformation probability of the first output shaft 300 is reduced, and the service life of the first output shaft 300 is prolonged.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the second driving gear 120 is located at an end of the first input shaft 100 away from the engine 600, and the fourth driving gear 130 is located between the second driving gear 120 and the sixteenth driving gear 140.
Further, the third and fifth gear drive gear 220 is closer to the engine 600 than the seventh gear drive gear 230.
Like this every driving gear more be convenient for and the driven gear that corresponds cooperatees, and the overall arrangement mode is more reasonable, can reduce the size of speed change mechanism 1 with three five grades of driving gears 220 respectively with three keep off driven gear 520 and five grades of driven gear cooperation. And the driving gears with smaller gears are arranged at two ends of the first input shaft 100 on the input shaft, and the driving gears with larger gears are arranged in the middle of the first input shaft 100, because the force applied to the shaft is larger than that applied to the high gear, the force applied to the shaft is larger, and therefore the low gear is arranged at the end of the first input shaft 100, the deformation probability of the first input shaft 100 is reduced, and the service life of the first input shaft 100 is prolonged.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the third-speed driven gear 520 is located at an end of the second output shaft 500 adjacent to the engine 600, the second-speed driven gear 510 is located at an end of the second output shaft 500 away from the engine 600, the sixth-speed driven gear 540 is located between the third-speed driven gear 520 and the second-speed driven gear 510, and the fourth-speed driven gear 530 is located between the sixth-speed driven gear 540 and the second-speed driven gear 510. In this way, the low gears (the third-gear driven gear 520 and the second-gear driven gear 510) on the second output shaft 500 are respectively located at two ends of the second output shaft 500, and the high gears (the fourth-gear driven gear 530 and the sixth-gear driven gear 540) are located in the middle of the second output shaft 500, and since the force applied to the shaft is larger for the low gears than for the high gears, the force applied to the shaft is larger, and therefore, the low gears are arranged at two ends of the second output shaft 500, the deformation probability of the second output shaft 500 is reduced, and the service life of the second output shaft 500 is prolonged.
According to some embodiments of the present invention, as shown in fig. 1 to 11, the plurality of driven gears further includes a reverse driven gear 440 that is hollow on the transmission shaft 400, the eight reverse synchronizer 430 is disposed between the eight reverse driven gear 420 and the reverse driven gear 440, and the reverse driven gear 440 is engaged with the two reverse driven gear 510. In this manner, the transmission mechanism 1 of the vehicle can have the reverse gear position.
The related art shift mechanism requires a separate reverse shaft to support the reverse driven gear and also requires a separate synchronizer for the reverse driven gear.
In the speed change mechanism 1 of the present invention, the reverse driven gear is provided on the transmission shaft 400, so that a reverse shaft and a synchronizer separately engaged with the reverse driven gear 440 can be omitted, the size of the speed change mechanism 1 of the vehicle can be reduced, and the cost can be reduced.
According to the transmission mechanism 1 of the vehicle of the embodiment of the present invention, there are two kinds of processes for realizing the reverse function:
for example, as shown in fig. 10, the first input shaft 100 is connected to the engine 600 through the first clutch 110, the fifth-seventh gear synchronizer 320 is engaged with the transmission shaft 400 to achieve synchronous rotation between the transmission shaft 400 and the first output shaft 300, the eighth-reverse gear synchronizer 430 is engaged with the reverse gear driven gear 440 to achieve synchronous rotation between the reverse gear driven gear 440 and the transmission shaft 400, the second gear driving gear 120 of the first input shaft 100 drives the second gear driven gear 510 to rotate, and the second gear driven gear 510 drives the reverse gear driven gear 440, the transmission shaft 400 and the first output shaft 300 to rotate, so that the power of the engine 600 can be output through the rotation of the first output shaft 300, and the transmission mechanism 1 of the vehicle achieves a reverse gear function.
For another example, as shown in fig. 11, the first input shaft 100 is connected to the engine 600 through the first clutch 110, the third-sixth gear synchronizer 550 is engaged with the third-sixth gear driven gear 520 to realize synchronous rotation between the third-sixth gear driven gear 520 and the second output shaft 500, the eighth-reverse synchronizer 430 is engaged with the reverse gear driven gear 440 to realize synchronous rotation between the reverse gear driven gear 440 and the transmission shaft 400, the second-gear driving gear 120 of the first input shaft 100 drives the second-gear driven gear 510 to rotate, the second-gear driven gear 510 drives the reverse gear driven gear 440 and the transmission shaft 400 to rotate, the seventh-gear driven gear 410 on the transmission shaft 400 rotates synchronously with the transmission shaft 400, the seventh-gear driven gear 410 drives the second input shaft 200 to rotate by being engaged with the seventh-gear driving gear 230, the third-gear driving gear on the second input shaft 200 rotates synchronously with the second input shaft 200, the third-gear driving gear drives the second output shaft 500 to rotate by being engaged with the third-gear driven gear 520, the power of the engine 600 can be output by the rotation of the second output shaft 500, and the transmission mechanism 1 of the vehicle realizes the reverse function.
Therefore, the speed change mechanism 1 of the vehicle is provided with more than one reverse gear function, when the speed change mechanism is actually applied to the vehicle, a proper reverse gear function realization mode can be selected according to parameters of the vehicle, the universality of the speed change mechanism 1 is improved, and the performance of the vehicle can also be improved.
The following table is a schematic position diagram of the synchronizer in each gear of the transmission 1, where the synchronizer a is a five-seven-gear synchronizer 320, the synchronizer b is an eight-reverse-gear synchronizer 430, the synchronizer c is a three-six-gear synchronizer 550, the synchronizer d is a two-four-gear synchronizer 560, L is the synchronizer matched with the left gear, R is the synchronizer matched with the right gear, N is the synchronizer not matched with the gear, ● is the states of the two clutches and the synchronizers in the current gear, and reverse 1 and reverse 2 are two ways of implementing the reverse function.
Figure BDA0002560121150000101
Figure BDA0002560121150000111
According to some embodiments of the present invention, as shown in fig. 1 to 11, the transmission mechanism 1 of the vehicle further includes a driving shaft 700, the driving shaft 700 is provided with a fixed driving gear 710, the first output shaft 300 is provided with a fixed first output gear 330, the second output shaft 500 is provided with a fixed second output gear 570, and the driving gear 710 is engaged with the first output gear 330 and the second output gear 570, respectively. Wherein a fixed differential is provided on the drive shaft 700, and the drive gear 710 is fixedly provided to the housing of said differential. So, engine 600 can drive the input shaft, again by input shaft and output shaft cooperation, and the rethread output shaft is with power transmission to drive shaft 700, and through the setting of gear pair, the output shaft drives drive shaft 700 and rotates simply, and easily operates, and the speed change mechanism 1's of vehicle transmission efficiency is high.
A vehicle according to an embodiment of the invention, which includes a transmission mechanism 1 of the vehicle according to the embodiment of the invention, is described below with reference to the drawings.
According to the vehicle of the embodiment of the invention, the speed change mechanism 1 of the vehicle of the embodiment of the invention has the advantages of low cost, high space utilization rate and the like while realizing eight gears.
Other configurations and operations of the transmission mechanism 1 of the vehicle according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A transmission mechanism of a vehicle, characterized by comprising:
the first input shaft is connected with the engine through a first clutch;
the second input shaft is connected with the engine through a second clutch, and a plurality of driving gears are arranged on the first input shaft and the second input shaft;
the transmission shaft is sleeved on the first output shaft in an empty mode, and the first output shaft, the transmission shaft and the second output shaft are provided with a plurality of synchronizers and a plurality of driven gears meshed with the driving gears;
and one gear of the speed change mechanism realizes power transmission through the driving gear and the driven gear which share other gears.
2. The transmission mechanism for a vehicle according to claim 1, wherein the plurality of drive gears includes a second-gear drive gear, a fourth-gear drive gear, a sixth-eighth-gear drive gear, a third-fifth-gear drive gear, and a seventh-gear drive gear, the second-gear drive gear, the fourth-gear drive gear, and the sixth-eighth-gear drive gear are fixed to the first input shaft, and the third-fifth-gear drive gear and the seventh-gear drive gear are fixed to the second input shaft;
the plurality of driven gears comprise a fifth-gear driven gear, a seventh-gear driven gear, an eighth-gear driven gear, a second-gear driven gear, a third-gear driven gear, a fourth-gear driven gear and a sixth-gear driven gear, the fifth-gear driven gear is sleeved on the first output shaft in a free mode and is meshed with the third-fifth-gear driving gear, the seven-gear driven gear is fixed on the transmission shaft and is meshed with the seven-gear driving gear, the eight-gear driven gear is sleeved on the transmission shaft in a free mode and is meshed with the six-eight-gear driving gear, the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the sixth-gear driven gear are sleeved on the second output shaft in a hollow manner, the second-gear driven gear is meshed with the second-gear driving gear, the third-gear driven gear is meshed with the third-gear driving gear, the four-gear driven gear is meshed with the four-gear driving gear, and the six-gear driven gear is meshed with the six-eight-gear driving gear;
the plurality of synchronizers comprise a fifth-seventh gear synchronizer, an eighth-reverse gear synchronizer, a third-sixth gear synchronizer and a second-fourth gear synchronizer, the fifth-seventh gear synchronizer is arranged on the first output shaft and is positioned between the fifth-gear driven gear and the transmission shaft, the eighth-reverse gear synchronizer is arranged on the transmission shaft and is adjacent to the eighth-gear driven gear, the third-sixth gear synchronizer is arranged on the second output shaft and is positioned between the third-gear driven gear and the sixth-gear driven gear, and the second-fourth gear synchronizer is arranged on the second output shaft and is positioned between the second-gear driven gear and the fourth-gear driven gear;
the first gear of the speed change mechanism realizes power transmission through the seven-gear driving gear, the seven-gear driven gear, the six-eight-gear driving gear, the eight-gear driven gear, the two-gear driving gear and the two-gear driven gear.
3. The vehicle transmission mechanism according to claim 2, wherein the second input shaft is loosely fitted over the first input shaft, a portion of the first input shaft extends out of the second input shaft, and the second gear driving gear, the fourth gear driving gear, and the sixth eight gear driving gear are located on a portion of the first input shaft that extends out of the second input shaft.
4. The vehicle transmission mechanism according to claim 2, wherein the second gear drive gear is located at an end of the first input shaft remote from the engine, and the fourth gear drive gear is located between the second gear drive gear and the sixth-eighth gear drive gear;
the third and fifth gear drive gear is closer to the engine than the seventh gear drive gear.
5. The vehicular transmission mechanism according to claim 2, wherein the fifth-speed driven gear is located at an end of the propeller shaft that faces the engine.
6. The vehicular transmission mechanism according to claim 2, wherein the seven-speed driven gear is located at an end of the propeller shaft adjacent to the engine, and the eight-speed driven gear is located between the seven-speed driven gear and the eight-reverse synchronizer.
7. The vehicle transmission mechanism according to claim 2, wherein the third-speed driven gear is located at an end of the second output shaft adjacent to the engine, the second-speed driven gear is located at an end of the second output shaft remote from the engine, the sixth-speed driven gear is located between the third-speed driven gear and the second-speed driven gear, and the fourth-speed driven gear is located between the sixth-speed driven gear and the second-speed driven gear.
8. The vehicle transmission mechanism according to claim 2, wherein the plurality of driven gears further includes a reverse driven gear that is idly fitted to the transmission shaft, the reverse driven gear is engaged with the second driven gear, and the eight reverse synchronizer is located between the eight reverse driven gear and the reverse driven gear.
9. The vehicular transmission mechanism according to any one of claims 1 to 7, characterized by further comprising:
the driving shaft is provided with a fixed driving gear, the first output shaft is provided with a fixed first output gear, the second output shaft is provided with a fixed second output gear, and the driving gear is respectively meshed with the first output gear and the second output gear.
10. A vehicle characterized by comprising a transmission mechanism of a vehicle according to any one of claims 1 to 9.
CN202010603747.1A 2020-06-29 2020-06-29 Speed change mechanism of vehicle and vehicle with speed change mechanism Active CN113931979B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971572A1 (en) * 2011-02-10 2012-08-17 Pascal Thery Gearbox for automatic torque transmission of motor vehicle, has engagement sleeve rotatably coupled to transfer shaft by radial inner hub located between freewheels, where one of freewheels is coupled to supporting shaft
CN103711845A (en) * 2013-12-30 2014-04-09 长城汽车股份有限公司 Multi-gear dual-clutch transmission and car
FR3010164A1 (en) * 2013-08-29 2015-03-06 Peugeot Citroen Automobiles Sa DOUBLE CLUTCH GEARBOX FOR A MOTOR VEHICLE
JP2016095022A (en) * 2014-11-05 2016-05-26 本田技研工業株式会社 Speed change gear

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2971572A1 (en) * 2011-02-10 2012-08-17 Pascal Thery Gearbox for automatic torque transmission of motor vehicle, has engagement sleeve rotatably coupled to transfer shaft by radial inner hub located between freewheels, where one of freewheels is coupled to supporting shaft
FR3010164A1 (en) * 2013-08-29 2015-03-06 Peugeot Citroen Automobiles Sa DOUBLE CLUTCH GEARBOX FOR A MOTOR VEHICLE
CN103711845A (en) * 2013-12-30 2014-04-09 长城汽车股份有限公司 Multi-gear dual-clutch transmission and car
JP2016095022A (en) * 2014-11-05 2016-05-26 本田技研工業株式会社 Speed change gear

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