CN218094098U - Unpowered-interruption gear-shifting gearbox - Google Patents
Unpowered-interruption gear-shifting gearbox Download PDFInfo
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- CN218094098U CN218094098U CN202221841279.2U CN202221841279U CN218094098U CN 218094098 U CN218094098 U CN 218094098U CN 202221841279 U CN202221841279 U CN 202221841279U CN 218094098 U CN218094098 U CN 218094098U
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- 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
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Abstract
The utility model provides a gearbox of shifting does not have power failure belongs to motor transmission technical field. The gear shifting device solves the problem of how to improve gear shifting smoothness on the premise of ensuring the service life and the assembly rationality. The unpowered interrupt gear shifting gearbox comprises a left input shaft, a right input shaft and an output shaft, wherein the left input shaft and the right input shaft are in transmission connection with the output shaft respectively and form a plurality of gears, the gearbox further comprises a plurality of gear shifting synchronizers used for achieving switching between the gears respectively, at least one gear shifting synchronizer is arranged on the left input shaft and the left input shaft, and at least one pair of gear shifting synchronizers is arranged on the output shaft. This unpowered interruption gearbox of shifting can improve the problem of the ride comfort of shifting under the prerequisite of guaranteeing life and assembly rationality.
Description
Technical Field
The utility model belongs to the technical field of motor transmission, a gearbox of shifting without power interruption is related to.
Background
The transmission is an indispensable component assembly in automobiles and is mainly used for changing the driving force and the running speed of the automobile on the premise that the rotating speed and the torque of an engine do not change.
With the continuous innovation of the technology, the electric and hybrid vehicles are continuously and rapidly developed in recent years, and a Chinese patent (application publication No. CN 106382349A) discloses a dual-motor compact gearbox without power interruption, which specifically comprises a motor A, a motor B, a planet row speed reduction device and a mechanical gearbox module; the planetary gear reduction device includes: the sun gear, the planet carrier and the gear ring; the gearbox module comprises an input shaft A, an input shaft B, four pairs of reduction gears and an output shaft; according to the gearbox, the space size of the gearbox is reduced through overall planning of the overall space of the motor and the gearbox, the light design requirement is met, the economy of the gearbox is improved, and three matched gears can be achieved.
As can be seen from the description and the drawings of the above-mentioned comparison document, the synchronous toothholder for changing gears is fixed on the input shaft a and the input shaft B, the synchronous sleeve for changing gears is slidably connected to the synchronous toothholder, and the gears are switched by the synchronous sleeve sliding up and down and meshing with a certain reduction gear.
However, in order to meet the gear shifting requirement in an automobile with four or more gears, a conventional technical means generally includes that a plurality of pairs of reduction gears are additionally mounted on an input shaft a and an input shaft B, and a synchronous gear seat and a synchronous gear sleeve are simultaneously mounted on the input shaft a and the input shaft B and positioned between each pair of reduction gears, but each synchronous gear seat and each synchronous gear sleeve have a certain volume, so that the length and the size of each input shaft have large requirements, the torques generated by the working of different synchronous gear seats and synchronous gear sleeves are different, and the requirement on the rigidity of the input shaft is also very high; meanwhile, in order to ensure the performance of the automobile, the speed ratio of the gearbox in each gear has certain requirements, the speed ratio steps formed by the synchronous tooth holders integrated on each input shaft and the synchronous tooth sleeves in the working process are difficult to coordinate, and impact jerk is easily generated in the gear shifting process.
Disclosure of Invention
The utility model aims at having the above-mentioned problem to current technique, provided a gearbox of shifting without power interruption, the utility model aims to solve the technical problem that: how to improve the gear shifting smoothness on the premise of ensuring the service life and the assembly rationality.
The purpose of the utility model can be realized by the following technical proposal: the gearbox is characterized in that at least one shifting synchronizer is arranged on each of the left input shaft and the input shaft, and at least one pair of shifting synchronizers is arranged on the output shaft.
The unpowered interrupted gear-shifting gearbox comprises a left input shaft, a right input shaft and an output shaft, wherein the left input shaft and the right input shaft are both connected with a driving source, the output shaft is used for outputting power outwards, the left input shaft and the right input shaft can form a plurality of gears after being respectively connected with the output shaft, at least one gear-shifting synchronizer is arranged on the left input shaft and the right input shaft, at least one gear-shifting synchronizer is arranged on the output shaft, the gear-shifting synchronizer of the left input shaft can realize gear shifting in the gear on the left input shaft, the gear-shifting synchronizer of the right input shaft can realize gear shifting in the gear on the right input shaft, the gear-shifting synchronizer arranged on the output shaft can realize gear shifting in the gear on the output shaft, and the installation positions of the gear-shifting synchronizers are dispersed, the original installation of the shifting synchronizers only on the input shaft A and the input shaft B is changed into the installation of the shifting synchronizers on the left input shaft and the right input shaft, and the plurality of shifting synchronizers are also installed on the output shaft, so that the defects of overhigh manufacturing cost and serious kinetic energy loss caused by selecting and using the left and right input shafts and the output shaft with longer sizes can be avoided while the installation space on the left and right input shafts and the output shaft is reasonably utilized, the problems of bending and fracture caused by the fact that the left and right input shafts and the output shaft bear the torque of each shifting synchronizer independently can also be avoided, in addition, each gear speed ratio step formed by each shifting synchronizer can be more balanced, the shifting is more smooth, and the phenomenon of shock pause is avoided.
In the power-interruption-free gear shifting gearbox, the left input shaft and the right input shaft are respectively provided with a plurality of gear shifting driving gears I and a plurality of gear shifting driving gears II, the output shaft is provided with a plurality of gear shifting driven gears, the plurality of gear shifting driving gears I are meshed with the plurality of corresponding gear shifting driven gears, and the plurality of gear shifting driving gears II are meshed with the plurality of corresponding gear shifting driven gears to jointly form a plurality of gears.
The left input shaft and the output shaft are connected in a matching mode through a first gear shifting driving gear and a second gear shifting driven gear, and the right input shaft and the output shaft are connected in a matching mode through a second gear shifting driving gear and a second gear shifting driven gear, so that power can be transmitted from the output shaft to the outside; the right input shaft and the output shaft are connected in a matched mode through a second gear shifting driving gear and a second gear shifting driven gear, and therefore power can be transmitted to the outside from the output shaft; the gear shifting synchronizer on the left input shaft is switched between two adjacent gear shifting driving gears I to realize gear shifting, the gear shifting synchronizer on the right input shaft is switched between two adjacent gear shifting driving gears II to realize gear shifting, and the gear shifting synchronizer on the output shaft is switched between two adjacent gear shifting driven gears to realize gear shifting.
In the power-interruption-free gear shifting gearbox, the number of the gears and the gear shifting synchronizer is four, the four gear shifting synchronizers are respectively a first gear shifting synchronizer, a second gear shifting synchronizer, a third gear shifting synchronizer and a fourth gear shifting synchronizer, the first gear shifting synchronizer and the second gear shifting synchronizer are axially arranged on the output shaft at intervals and are used for realizing the switching between a first gear and a second gear, and the third gear shifting synchronizer and the fourth gear shifting synchronizer are respectively arranged on the left input shaft and the right input shaft and are used for realizing the switching between a third gear and a fourth gear.
Through with the synchronous ware of shifting first with the synchronous ware of shifting second along axial interval setting on the output shaft, the synchronous ware of shifting third sets up on left input shaft, the synchronous ware of shifting fourth sets up on right input shaft, from this, thereby guarantee that each synchronous ware mounted position of shifting is even and the decentralization, through the synchronous ware of shifting first with the synchronous ware of shifting second cooperation control vehicle, two keep off the switching, through the synchronous ware of shifting third with the synchronous ware of shifting four cooperations control vehicle three, four keep off the position switching, effectively guarantee the car at the in-process ride comfort of shifting.
In the above-mentioned transmission case of shifting gears without power interruption, the transmission case of shifting gears without power interruption further comprises a left motor set and a right motor set which are composed of a plurality of motors, wherein a left planetary gear assembly is arranged on the left input shaft, a right planetary gear assembly is arranged on the right input shaft, the left motor set is connected with the left input shaft through the left planetary gear assembly, and the right motor set is connected with the right input shaft through the right planetary gear assembly.
This gearbox carries out power take off through the left motor group that constitutes by a plurality of motors and right motor group, it is higher in order to reach power take off efficiency through the mode of a plurality of motor cooperation output power, install left planetary gear assembly on the left input shaft simultaneously, install right planetary gear assembly on the right motor, can slow down by left and right motor group output power earlier, thereby make the motor rotational speed of high-speed rotation descend, make follow-up velocity ratio regulation more accurate (left planetary gear assembly is prior art with there being planetary gear assembly, in order to avoid the content to be miscellaneous, the present case is no longer repeated two concrete structures again, power is specifically by the sun gear input of planetary gear assembly, and export by the planet carrier).
In the above-mentioned transmission case with no power interruption, a left reduction gear is provided on the left planetary gear assembly, a right reduction gear is provided on the right planetary gear assembly, a left output gear is provided on the left electric machine set, a right output gear is provided on the right electric machine set, the left output gear is engaged with the left reduction gear, and the right output gear is engaged with the right reduction gear.
When the left and right motor sets output power, the output power can be firstly transmitted to the left output gear and the right output gear, then the left output gear is matched with the left reduction gear to enable the power to be input into the left planetary gear assembly, the right output gear is also matched with the right reduction gear to enable the power to be input into the right planetary gear assembly, therefore, the power output by the left and right motor sets is firstly reduced through the matching of the left and right reduction gears and the left and right planetary gear assemblies, so that the speed ratio steps of each gear of the automobile are more balanced, and the gear shifting is smoother (besides, as a specific scheme, the left and right motor sets comprise two motors, the left output gear or the right output gear is mounted on an output shaft of each motor, the two left output gears are meshed with the left reduction gear, and the two right output gears are meshed with the right reduction gear).
In the above-mentioned power-interruption-free gear shifting transmission, the plurality of gear shifting driven gears include a first gear driven gear and a second gear driven gear which are loosely sleeved on the output shaft, the plurality of gear shifting driving gears include a first gear driving gear and a second gear driving gear which are fixed on the left input shaft, the first gear driving gear is meshed with the first gear driven gear, the second gear driving gear is meshed with the second gear driven gear, the gear shifting synchronizer is located between the first gear driven gear and the second gear driven gear and includes a first gear hub fixed on the output shaft and a first gear sleeve connected with the first gear hub through a spline, and the first gear sleeve can be meshed with the first gear driven gear or the second gear driven gear through the first gear hub sliding along the axial direction of the output shaft.
The output shaft and the left input shaft are matched with the first gear driving gear through the first gear driven gear I, the first second gear driving gear is matched with the first second gear driven gear to realize connection, and the first gear shifting synchronizer is specifically positioned between the first gear driven gear I and the first second gear driven gear I; similarly, when the first gear sleeve slides downwards, the first gear sleeve is finally meshed with the second engaging gear on the first secondary driven gear, so that after power is transmitted to the first secondary driven gear from the first secondary driving gear, the power can sequentially pass through the first gear sleeve and the gear hub to drive the output shaft to output power outwards.
In the above-mentioned power-interruption-free gear-shifting gearbox, the plurality of gear-shifting driven gears further include a first-gear driven gear two and a second-gear driven gear two that are loosely fitted on the output shaft, the plurality of gear-shifting driving gears second include a first-gear driving gear two and a second-gear driving gear two that are fixed on the right input shaft, the first-gear driving gear two is engaged with the first-gear driven gear two, the second-gear driving gear two is engaged with the second-gear driven gear two, the gear-shifting synchronizer is located between the first-gear driven gear two and the second-gear driven gear two and includes a gear hub two that is fixed on the output shaft and a gear sleeve two that is connected with the gear hub two through a spline, and the gear sleeve two can be engaged with the first-gear driven gear two or the second-gear driven gear two through the gear hub two that slide axially along the output shaft.
The output shaft and the right input shaft are matched with the first-gear driving gear II through the first-gear driven gear II, the second-gear driving gear II is matched with the second-gear driven gear II to realize connection, the second gear shifting synchronizer is specifically positioned between the first-gear driven gear II and the second-gear driven gear II, the second gear shifting synchronizer specifically comprises a gear sleeve II and a gear hub II, the gear hub II is fixedly connected onto the output shaft, the gear sleeve II is connected with the gear sleeve II through a spline, so that the gear sleeve II can axially slide on the output shaft relative to the gear hub II, as a preferred scheme, a third engaging gear is arranged on the first-gear driven gear II, a fourth engaging gear is arranged on the second-gear driven gear II, and when the gear sleeve II slides upwards, the second engaging gear is finally meshed with the third engaging gear on the first-gear driven gear II, therefore, after power is conveyed to the first-gear driven gear II through the first-gear driving gear II, the gear hub II and the output shaft are driven to output power outwards; similarly, when the gear sleeve II slides downwards, the gear sleeve II is finally meshed with the engaging teeth IV on the second-gear driven gear II, so that power can be transmitted to the second-gear driven gear II from the second-gear driving gear II, can sequentially pass through the gear sleeve II and the gear hub II, and drives the output shaft to output power outwards.
In the above-mentioned power-interruption-free gear shift transmission, the plurality of gear shift driven gears further include a third gear driven gear and a fourth gear driven gear fixed to the output shaft, the plurality of gear shift driving gears include a third gear driving gear and a fourth gear driving gear that are loosely fitted to the left input shaft, the third gear driving gear is engaged with the third gear driven gear, the fourth gear driving gear is engaged with the fourth gear driven gear, the gear shift synchronizer is located between the third gear driving gear and the fourth gear driving gear and includes a third gear hub fixed to the left input shaft and a third gear sleeve that is three-phase-connected to the third gear hub through a spline, and the third gear sleeve can be axially slid along the left input shaft through the third gear hub and is engaged with the first three gear driving gear or the first four gear driving gear.
The output shaft and the left input shaft are matched with the first three-gear driving gear through the first three-gear driven gear, the first four-gear driving gear is matched with the fourth four-gear driven gear to realize connection, and the third gear shifting synchronizer is positioned between the first three-gear driving gear and the first four-gear driving gear, the third gear shifting synchronizer comprises a third gear sleeve and a third gear hub, the third gear hub is fixedly connected to the left input shaft, the third gear sleeve is connected with the third gear sleeve through a spline, so that the third gear sleeve can axially slide on the input shaft relative to the third gear hub, as a preferred scheme, the first three-gear driving gear is provided with a fifth engaging gear, the first four-gear driving gear is provided with a sixth engaging gear, and when the third gear sleeve slides upwards, the fifth engaging gear is finally meshed with the fifth engaging gear on the first three-gear driving gear, so that after power is transmitted to the first three-gear driven gear through the first three-gear driving gear and the third gear hub, the power can sequentially pass through the third gear sleeve and drive the output shaft to output power outwards; similarly, when the gear sleeve III slides downwards, the gear sleeve III is finally meshed with the engaging teeth on the first four-gear driving gear, so that after power is transmitted to the first four-gear driven gear from the first four-gear driving gear, the power can sequentially pass through the gear sleeve III and the gear hub III and drive the output shaft to output the power outwards.
In the above-mentioned power-interruption-free gear-shifting transmission, the plurality of second gear-shifting driving gears further include a second third gear driving gear and a second fourth gear driving gear which are loosely fitted on the right input shaft, the plurality of second third gear driving gears are engaged with the third gear driven gear, the second fourth gear driving gear is engaged with the fourth gear driven gear, the fourth gear-shifting synchronizer is located between the second third gear driving gear and the second fourth gear driving gear and includes a fourth gear hub fixed on the right input shaft and a fourth gear sleeve connected with the fourth gear hub through a spline, and the fourth gear sleeve can axially slide along the right input shaft through the fourth gear hub and is engaged with the second third gear driving gear or the second fourth gear driving gear.
The output shaft and the right input shaft are matched with the third-gear driving gear II through the third-gear driven gear, the fourth-gear driving gear II is matched with the fourth-gear driven gear to realize connection, the fourth-gear synchronizer is specifically positioned between the third-gear driving gear II and the fourth-gear driving gear II, the fourth-gear synchronizer comprises a gear sleeve IV and a gear hub IV, the gear hub IV is fixedly connected onto the right input shaft, the fourth-gear sleeve is connected with the fourth-gear sleeve through a spline, so that the fourth-gear sleeve can axially slide on the input shaft relative to the fourth-gear sleeve, as a preferred scheme, the third-gear driving gear II is provided with a coupling tooth VII, the fourth-gear driving gear II is provided with a coupling tooth VIII, and when the fourth-gear sleeve upwards slides, the fourth-gear sleeve is finally meshed with the coupling tooth VII on the third-gear driving gear II, therefore, after power is transmitted to the third-gear driven gear from the third-gear driving gear II, the power can sequentially pass through the gear sleeve IV and the gear hub IV and drive the output shaft to output power outwards; similarly, when the gear sleeve IV slides downwards, the gear sleeve IV is finally meshed with the engaging teeth on the fourth-gear driving gear II, so that after power is transmitted to the fourth-gear driven gear from the fourth-gear driving gear II, the power can sequentially pass through the gear sleeve IV and the gear hub IV and drive the output shaft to output the power outwards.
Compared with the prior art, this unpowered interruption gearbox of shifting possesses following advantage:
1. through setting up each synchronizer of shifting respectively on left and right input shaft and output shaft, the unbalance of each synchronizer speed ratio rank of shifting when avoiding shifting causes the impact of shifting, and also can avoid left and right input shaft and output shaft to bear respectively the synchronizer moment of torsion of shifting alone and produce crooked, cracked defect when the installation space of rational utilization left and right input shaft and output shaft.
2. The power output by the left and right motor sets is subjected to multi-stage speed reduction by matching the reduction gear with the left and right planetary gear assemblies, so that the speed ratio steps of subsequent gears are balanced, and the gear shifting smoothness is ensured.
Drawings
FIG. 1 is a schematic structural layout of the present non-power-interrupting shifting transmission.
In the figure: 1. a left motor set; 11. a left output gear;
2. a right motor group; 21. a right output gear;
3. a left input shaft;
4. a right input shaft;
5. an output shaft; 51. a first gear shifting synchronizer; 511. a first gear sleeve; 512. a first gear hub; 52. a second gear shifting synchronizer; 521. a second gear sleeve; 522. a gear hub II; 53. a third gear shifting synchronizer; 531. a third gear sleeve; 532. a gear hub III; 54. a fourth gear shifting synchronizer; 541. A gear sleeve IV; 542. a gear hub IV;
6. a left planetary gear assembly; 61. a left reduction gear;
7. a right planetary gear assembly; 71. a right reduction gear;
8. a first gear shifting driving gear; 81. a first gear driving gear I; 82. two gears are driving gears I; 83. a first third gear driving gear; 84. a first four-gear driving gear;
9. a second gear shifting driving gear; 91. a first gear driving gear II; 92. a second driving gear; 93. a third gear driving gear II; 94. a fourth gear driving gear II;
10. a shift driven gear; 101. a first gear driven gear I; 102. a first secondary driven gear; 103. a first gear driven gear II; 104. a second driven gear II; 105. A third-gear driven gear; 106. and a fourth-gear driven gear.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, the transmission case without power interruption includes a left motor set 1, a right motor set 2, a left input shaft 3, a right input shaft 4 and an output shaft 5, where the left motor set 1 and the right motor set 2 both include two power motors, a left output gear 11 is fixed on each power motor output shaft 5 of the left motor set 1, a right output gear 21 is fixed on each power motor output shaft 5 of the right motor set 2, a left planetary gear assembly 6 is installed on the left input shaft 3, a right planetary gear assembly 7 is installed on the right input shaft 4, a left reduction gear 61 connected to the left planetary gear assembly 6 is fixed on the left input shaft 3, a left reduction gear 71 connected to the right planetary gear assembly 7 is fixed on the right input shaft 4, the left motor set 1 can input reduction power to the left input shaft 3 by meshing the left output gears 11 with the left reduction gear 61, the right motor set 2 can input power to the right input shaft 4 by meshing the right output gears 21 with the left reduction gear 71, and the left input power can be input to the right input shaft 4 by the left planetary gear assembly, and the left input shaft 6 or the left planetary gear assembly 7 can be input power by the left reduction gear, and the left planetary gear assembly or the left planetary gear assembly 7.
As shown in fig. 1, a left input shaft 3 and a right input shaft 4 are arranged in parallel, an output shaft 5 is located between the left input shaft 3 and the right input shaft 4, a gear shifting synchronizer is arranged on the left input shaft 3, a gear shifting synchronizer is arranged on the right input shaft 4, a plurality of gear shifting synchronizers are arranged on the output shaft 2, and the four gear shifting synchronizers are respectively a gear shifting synchronizer one 51, a gear shifting synchronizer two 52, a gear shifting synchronizer three 53 and a gear shifting synchronizer four 54; the output shaft 5 is provided with a first shifting synchronizer 51 and a second shifting synchronizer 52 at intervals along the axial direction, the left input shaft 3 is provided with a third shifting synchronizer 53, the right input shaft 4 is provided with a fourth shifting synchronizer 54, the left input shaft 3 is provided with a plurality of first shifting driving gears 8 which specifically comprise a first driving gear 81 and a second driving gear 82 which are fixed on the left input shaft 3, the output shaft 5 is provided with a plurality of shifting driven gears 10 which specifically comprise a first driven gear 101 and a second driven gear 102 which are sleeved on the output shaft 5, the first driven gear 101 is meshed with the first driving gear 81, the second driven gear 102 is meshed with the first driving gear 82, the first driven gear 101 is provided with a first engaging tooth, the second driven gear 102 is provided with a second engaging tooth, the first shifting synchronizer 51 is positioned between the first driven gear 101 and the second driven gear 102 and specifically comprises a first gear hub 512 which is fixed on the output shaft 5 and a first gear sleeve 511 which is connected with the first gear hub 512 through splines, and the first gear sleeve 511 can slide on the output shaft 5 along the axial direction relative to the first gear hub 512 and is engaged with the first or the second gear or the first engaging with the second gear.
As shown in fig. 1, a plurality of shift driving gears 9 are disposed on the right input shaft 4, and specifically include a first-gear driving gear two 91 and a second-gear driving gear two 92 fixed on the right input shaft 4, a plurality of shift driven gears 10 further include a first-gear driven gear two 103 and a second-gear driven gear two 104 that are loosely fitted on the output shaft 5, the first-gear driven gear two 103 is engaged with the first-gear driving gear two 91, the second-gear driven gear two 104 is engaged with the second-gear driving gear two 92, the first-gear driven gear two 103 is provided with a third engaging tooth, the second-gear driven gear two 104 is provided with a fourth engaging tooth, the second shift synchronizer 52 is located between the first-gear driven gear two 103 and the second-gear driven gear two 104 and specifically includes a second gear hub 522 fixed on the output shaft 5 and a second gear sleeve 521 connected with the second gear hub 522 through a spline, and the second gear sleeve 521 can axially slide on the output shaft 5 relative to the second gear hub 522 and is engaged with the third engaging tooth or the fourth engaging tooth.
As shown in fig. 1, the plurality of first shift driving gears 8 further include a first three-gear driving gear 83 and a first four-gear driving gear 84 that are loosely fitted on the left input shaft 3, the shift driven gear 10 further includes a first three-gear driven gear 105 and a first four-gear driven gear 106 that are fixed to the output shaft 5, the first three-gear driving gear 83 is engaged with the first three-gear driven gear 105, the first four-gear driving gear 84 is engaged with the first four-gear driven gear 106, the third shift synchronizer 53 is located between the first three-gear driving gear 83 and the first four-gear driving gear 84 and includes a third gear hub 532 fixed to the left input shaft 3 and a third gear sleeve 531 connected to the third gear hub 532 through splines, the first three-gear driving gear 83 is provided with a fifth engaging tooth, the first four-gear driving gear 84 is provided with a sixth engaging tooth, and the third gear sleeve 531 is capable of axially sliding on the left input shaft 3 relative to the third gear hub 532 and is engaged with the fifth engaging tooth or the sixth engaging tooth.
As shown in fig. 1, the second plurality of shift driving gears further include a second three-gear driving gear 93 and a second four-gear driving gear 94 that are freely sleeved on the right input shaft 4, the second three-gear driving gear 93 is engaged with the third three-gear driven gear 105, the second four-gear driving gear 94 is engaged with the fourth four-gear driven gear 106, the fourth shift synchronizer 54 is located between the second three-gear driving gear 93 and the second four-gear driving gear 94 and includes a fourth gear hub 542 fixed on the right input shaft 4 and a fourth gear sleeve 541 connected with the fourth gear hub 542 through splines, the second three-gear driving gear 93 is provided with a seventh engaging gear, the second four-gear driving gear 94 is provided with an eighth engaging gear 541, and the fourth gear sleeve 542 can slide on the right input shaft 4 in the axial direction relative to the fourth gear hub 542 and is engaged with the seventh engaging gear 541 or the eighth engaging gear 541.
In addition, the left reduction gear 61 and the left reduction gear 71 are matched with the left planetary gear assembly 6 and the right planetary gear assembly 7, so that the power speed ratio output by the left motor set 1 and the right motor set 2 can reach about 8, then the speed ratio can reach about 30 through a first shifting synchronizer 51 (namely, in the first gear), the speed ratio can reach about 14.5 through a second shifting synchronizer 52 (namely, in the second gear), the speed ratio can reach about 7.6 through a third shifting synchronizer 53 (namely, in the third gear), the speed ratio can reach about 4.35 through a fourth shifting synchronizer 54 (namely, in the fourth gear), the speed ratio step of each gear is about 6.7, and meanwhile, the speed regulation is synchronous through the left motor set 2 and the right motor set 2, so that the speed ratio steps are effectively guaranteed to be more balanced, and the gear shifting is further guaranteed to be smoother.
The working principle is as follows: in a starting state, a driver controls the first gear sleeve 511 to slide upwards on the output shaft 5 and be meshed with the first engaging gear on the first-gear driven gear 101, controls the second gear sleeve 521 to slide upwards on the output shaft 5 and be meshed with the second engaging gear on the second first-gear driven gear 103 in a three-phase mode (at the moment, the first-gear driving gear 81 and the second-gear driving gear 91 are no longer in an empty sleeve state), in the state, power input into the left input shaft 3 by the left motor set 1 is transmitted to the first-gear driven gear 101 through the first-gear driving gear 81, power input into the right input shaft 4 by the right motor set 2 is transmitted to the second first-gear driven gear 103 through the second-gear driving gear 91, then the output shaft 5 is driven to rotate through the first-gear driven gear 101 and the second-gear driven gear 103 to transmit power outwards, and in the state, the automobile is in the first gear; when the vehicle is shifted upwards, the driver controls the first gear sleeve 511 to slide downwards and engage with the second engaging teeth on the first secondary driven gear 102 (at the moment, the second gear sleeve 521 is still engaged with the third engaging teeth on the second primary driven gear 103 to ensure that the vehicle can still run under the first-gear power), then the driver controls the second gear sleeve 521 to slide downwards and engage with the fourth engaging teeth on the second secondary driven gear 104 (at the moment, because the first gear sleeve 511 is already engaged with the first secondary driven gear 102, the power output by the left input shaft 3 can be transmitted to the first secondary driven gear 102 through the first secondary driving gear 82, and the vehicle runs under the second-gear power); the driver controls the third gear sleeve 531 to slide upwards and to be meshed with the fifth engaging gear on the first third-gear driving gear 83 (at the moment, the first gear sleeve 511 slides upwards and is separated from the first-gear driven gear 101 and the second-gear driven gear 102), then controls the fourth gear sleeve 541 to slide upwards and is meshed with the seventh engaging gear on the second third-gear driving gear 93 (at the moment, the second gear sleeve 521 slides upwards and is separated from the second-gear driven gear 103 and the second-gear driven gear 104), power is input into the output shaft 5 through the left motor set 1 and the third-gear driving gear 105 in sequence, the right motor set 2 and the right motor set 2 are input into the output shaft 5 through the right input shaft 4, the second third-gear driving gear 93 and the third-gear driven gear 105 in sequence, and the vehicle is completely engaged into the third gear; the driver controls the third gear sleeve 531 to slide downwards and be meshed with the engaging teeth on the first four-gear driving gear 84 in a six-phase mode, then controls the fourth gear sleeve 541 to slide downwards and be meshed with the engaging teeth on the second four-gear driving gear 94 in an eight-phase mode, power is input into the output shaft 5 through the left motor set 1 and the fourth driving gear 84 and the fourth driven gear 106 in sequence, the right motor set 2 and the right input shaft 4, the second four-gear driving gear 94 and the fourth driven gear 106 in sequence in the state, and the vehicle is completely engaged in the fourth gear; otherwise, the downshift operation can be completed through the reverse steps.
When the vehicle is in a light load state, a driver can be meshed with the first engaging tooth on the first-gear driven gear 101 through the first gear sleeve 511, the second gear sleeve 521 is static, the second gear shifting synchronizer 52 is in a neutral gear state, the vehicle is in a first gear at the moment, when the vehicle speed is continuously increased, the driver controls the second gear sleeve 521 to slide downwards to be meshed with the fourth engaging tooth on the second-gear driven gear 104, the second gear shifting synchronizer 52 controls the vehicle to be in a second gear, meanwhile, the driver controls the first gear sleeve 511 to slide downwards to enable the first gear shifting synchronizer 51 to exit from the first gear and enter the neutral gear state, the vehicle is in the second gear at the moment, when the vehicle speed is continuously increased, the driver controls the third gear sleeve 531 to slide upwards to be meshed with the fifth engaging gear on the first three-gear driving gear 83, so that the third gear of the shifting synchronizer 53 is engaged with the third gear, meanwhile, the driver controls the second gear sleeve 521 to slide upwards to enable the second gear of the shifting synchronizer 52 to exit from the second gear and enter a neutral gear state, at the moment, the vehicle is engaged with the third gear, when the vehicle speed is continuously increased, the driver controls the fourth gear sleeve 541 to slide downwards to be meshed with the eighth engaging gear on the second four-gear driving gear 94, so that the fourth gear of the shifting synchronizer 54 is engaged with the fourth gear, at the same time, the driver controls the third gear sleeve 531 to slide downwards to enable the third gear of the shifting synchronizer 53 to exit from the third gear and enter the neutral gear state, and at the moment, the vehicle is engaged with the fourth gear.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms left electric machine set 1, left output gear 11, right electric machine set 2, right output gear 21, left input shaft 3, right input shaft 4, output shaft 5, shift synchronizer one 51, sleeve one 511, hub one 512, shift synchronizer two 52, sleeve two 521, hub two 522, shift synchronizer three 53, sleeve three 531, hub three 532, shift synchronizer four 54, sleeve four 541, hub four 542, left planetary gear assembly 6, left reduction gear 61, right planetary gear assembly 7, left reduction gear 71, shift driving gear one 8, first driving gear one 81, second driving gear one 82, third driving gear one 83, fourth driving gear one 84, shift driving gear two 9, first driving gear two 91, second driving gear two 92, third driving gear two 93, fourth driving gear two 94, second driving gear 10, first driven gear one 101, first driven gear 102, second driven gear 103, second driven gear 104, third driven gear 105, fourth driven gear 106 are used herein more often, and other terms are not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any one of the additional limitations of the present invention.
Claims (9)
1. The utility model provides a gearbox of shifting without power interruption, includes left input shaft (3), right input shaft (4) and output shaft (5), and left input shaft (3) and right input shaft (4) are connected with output shaft (5) transmission respectively and form a plurality of fender position, and the gearbox still includes a plurality of synchronizers of shifting that are used for realizing respectively shifting between the fender position, its characterized in that all is equipped with one on left input shaft (3) and input shaft (4) and shifts the synchronizers, be equipped with at least a pair of synchronizers of shifting on output shaft (5).
2. The transmission case of claim 1, wherein the left input shaft (3) and the right input shaft (4) are respectively provided with a plurality of first shift driving gears (8) and a plurality of second shift driving gears (9), the output shaft (5) is provided with a plurality of shift driven gears (10), the plurality of first shift driving gears (8) are engaged with the plurality of corresponding shift driven gears (10), and the plurality of second shift driving gears (9) are engaged with the plurality of corresponding shift driven gears (10) to form a plurality of gears.
3. The transmission case of claim 2, wherein there are four gears and four shifting synchronizers, and the four shifting synchronizers are a first shifting synchronizer (51), a second shifting synchronizer (52), a third shifting synchronizer (53) and a fourth shifting synchronizer (54), respectively, the first shifting synchronizer (51) and the second shifting synchronizer (52) are axially arranged on the output shaft (5) at intervals and are used for realizing the switching between the first gear and the second gear, and the third shifting synchronizer (53) and the fourth shifting synchronizer (54) are respectively arranged on the left input shaft (3) and the right input shaft (4) and are used for realizing the switching between the third gear and the fourth gear.
4. The transmission case of claim 3, further comprising a left motor set (1) and a right motor set (2) composed of a plurality of motors, wherein a left planetary gear assembly (6) is disposed on the left input shaft (3), a right planetary gear assembly (7) is disposed on the right input shaft (4), the left motor set (1) and the left input shaft (3) are connected through the left planetary gear assembly (6), and the right motor set (2) and the right input shaft (4) are connected through the right planetary gear assembly (7).
5. The power-interruption-free gear-shifting gearbox according to claim 4, wherein a left reduction gear (61) is arranged on the left planetary gear assembly (6), a right reduction gear (71) is arranged on the right planetary gear assembly (7), a left output gear (11) is arranged on the left motor set (1), a right output gear (21) is arranged on the right motor set (2), the left output gear (11) is meshed with the left reduction gear (61), and the right output gear (21) is meshed with the right reduction gear (71).
6. The drop-out shift gearbox as claimed in claim 4 or 5, wherein said plurality of shift driven gears (10) includes a first gear driven gear (101) and a second gear driven gear (102) that are free-sleeved on said output shaft (5), said plurality of shift driving gears (8) includes a first gear driving gear (81) and a second gear driving gear (82) that are fixed to said left input shaft (3), said first gear driving gear (81) is meshed with said first gear driven gear (101), said second gear driving gear (82) is meshed with said second gear driven gear (102), said first shift synchronizer (51) is located between said first gear driven gear (101) and said second gear driven gear (102) and includes a first gear hub (512) that is fixed to said output shaft (5) and a first gear sleeve (511) that is connected to said first gear hub (512) by splines, said first gear sleeve (511) is capable of axially sliding along said output shaft (5) by said first gear hub (512) to mesh with said first gear driven gear (101) or said second gear driven gear (102).
7. The drop-out shift transmission of claim 6, wherein said plurality of shift driven gears (10) further includes a second first driven gear (103) and a second driven gear (104) that are loosely fitted over said output shaft (5), said plurality of shift driving gears (9) includes a second first driving gear (91) and a second driving gear (92) that are fixed to said right input shaft (4), said second first driving gear (91) is engaged with said second first driven gear (103), said second driving gear (92) is engaged with said second driven gear (104), said second shift synchronizer (52) is located between said second first driven gear (103) and said second driven gear (104) and includes a second gear hub (522) that is fixed to said output shaft (5) and a second gear sleeve (521) that is connected to said second gear hub (522) by splines, and said second gear sleeve (521) is capable of axially sliding along said output shaft (5) through said second gear hub (522) to engage with said second driven gear (103) or said second driven gear (104).
8. The transmission according to claim 7, characterized in that said plurality of shift driven gears (10) further comprises a first three-gear driven gear (105) and a first four-gear driven gear (106) fixed to said output shaft (5), said plurality of shift driving gears (8) comprise a first three-gear driving gear (83) and a first four-gear driving gear (84) that are freely mounted on said left input shaft (3), said first three-gear driving gear (83) meshes with said first three-gear driven gear (105), said first four-gear driving gear (84) meshes with said first four-gear driven gear (106), said third shift synchronizer (53) is positioned between said first three-gear driving gear (83) and said first four-gear driving gear (84) and comprises a third gear hub (532) fixed to said left input shaft (3) and a third gear sleeve (531) splined to said third gear hub (532), said third gear sleeve (531) can axially slide along said left input shaft (3) through said third gear hub (532) to mesh with said first three-gear driving gear (83) or said first four-gear driving gear (84).
9. The unpowered interrupted shift gearbox according to claim 8, wherein the plurality of second shift driving gears (9) further includes a second third driving gear (93) and a second fourth driving gear (94) which are loosely fitted on the right input shaft (4), the second third driving gear (93) is engaged with the third driven gear (105), the second fourth driving gear (94) is engaged with the fourth driven gear (106), the fourth shift synchronizer (54) is located between the second third driving gear (93) and the second fourth driving gear (94) and includes a fourth gear hub (542) fixed on the right input shaft (4) and a fourth gear sleeve (541) connected with the fourth gear hub (542) through splines, and the fourth gear sleeve (541) is axially slidable along the right input shaft (4) through the fourth gear hub (542) to be engaged with the second third driving gear (93) or the second fourth driving gear (94).
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| CN202221841279.2U CN218094098U (en) | 2022-07-15 | 2022-07-15 | Unpowered-interruption gear-shifting gearbox |
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| CN202221841279.2U CN218094098U (en) | 2022-07-15 | 2022-07-15 | Unpowered-interruption gear-shifting gearbox |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087534A1 (en) * | 2022-10-24 | 2024-05-02 | 浙江吉利控股集团有限公司 | Vehicle speed changing device and method, driving device, and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024087534A1 (en) * | 2022-10-24 | 2024-05-02 | 浙江吉利控股集团有限公司 | Vehicle speed changing device and method, driving device, and vehicle |
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