CN215831063U - Six-gear gearbox - Google Patents
Six-gear gearbox Download PDFInfo
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- CN215831063U CN215831063U CN202121817757.1U CN202121817757U CN215831063U CN 215831063 U CN215831063 U CN 215831063U CN 202121817757 U CN202121817757 U CN 202121817757U CN 215831063 U CN215831063 U CN 215831063U
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Abstract
A six speed transmission is provided comprising an input shaft; a first synchronizer gear; a second synchronizer gear; a first drive gear; a first driven gear and a second driven gear; a second driving gear; a third driven gear and a fourth driven gear; a third driving gear; a fifth driven gear and a sixth driven gear; a countershaft gear; a first synchronizer; a second synchronizer; a planet row; a third synchronizer gear; an output shaft gear; and a third synchronizer. The split flow of the two groups of parallel shafts reduces the bearing pressure of a single pair of gears, larger torque can be borne, the layout of the gearbox is simple and compact, the gearbox has more uniform transmission step ratio, and the gear shifting smoothness is better.
Description
Technical Field
The utility model relates to the field of transmission of gearboxes, in particular to a six-gear gearbox.
Background
In recent years, with the growing new energy market, the configuration of a simple engine and a gearbox cannot meet the new market demand, the demand on a pure electric power assembly is more and more, and various large manufacturers push out various power assemblies matched with various double power sources and double gearboxes for market preemption, however, most of the existing power assembly arrangements have the problems of complex structure, large volume, difficult control, high cost and the like.
Therefore, there is a need for a six-speed transmission that solves one or more of the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
To solve at least one of the above technical problems, according to an aspect of the present invention, there is provided a six-speed transmission using a combination of parallel shafts and planetary rows to realize 6 forward speeds by 3 synchronizers.
Specifically, a six keep off gearbox is provided, its characterized in that includes:
an input shaft;
a first synchronizer gear connected with the input shaft;
a second synchronizer gear connected with the input shaft;
a first drive gear;
the first driven gear and the second driven gear are respectively meshed with the first driving gear;
a second driving gear;
the third driven gear and the fourth driven gear are respectively meshed with the second driving gear;
an intermediate shaft;
the third driving gear is connected to the intermediate shaft;
a fifth driven gear and a sixth driven gear which are respectively meshed with the third driving gear, wherein the first driven gear, the third driven gear and the fifth driven gear are connected through a first parallel shaft, and the second driven gear, the fourth driven gear and the sixth driven gear are connected through a second parallel shaft;
a countershaft gear connected to the countershaft;
the first synchronizer is selectively connected with the first synchronizer gear and the first driving gear or the second driving gear and selectively disconnected from the first synchronizer gear and the first driving gear and the second driving gear;
a second synchronizer selectively connecting or disconnecting the second synchronizer gear and the countershaft gear;
the planet row comprises a sun gear, a planet carrier and a gear ring, wherein the sun gear is connected with the intermediate shaft, and the planet carrier is connected with an output shaft;
a third synchronizer gear connected with the gear ring;
an output shaft gear connected to the output shaft; and
and the third synchronizer is used for selectively connecting the third synchronizer gear with the box or the output shaft gear and selectively disconnecting the third synchronizer gear from the box and the output shaft gear, and the gear ring is connected with the third synchronizer gear through a flange.
According to yet another aspect of the utility model, the first parallel axis is arranged parallel to the input shaft and the second parallel axis.
According to yet another aspect of the utility model, the input shaft, the intermediate shaft and the output shaft are coaxially arranged.
According to still another aspect of the present invention, the first driving gear, the first synchronizer gear, the second driving gear, and the second synchronizer gear are sequentially arranged along the input shaft direction.
According to yet another aspect of the present invention, the counter shaft gear, the third driving gear and the sun gear are sequentially arranged along the counter shaft.
According to still another aspect of the present invention, the six-speed transmission case has a symmetrical arrangement structure with the extending direction of the input shaft as a central axis.
According to another aspect of the utility model, the six-speed transmission further comprises: the first confluence input gear is connected with an output shaft of the first motor; the second confluence input gear is connected with an output shaft of the second motor; and a confluence output gear engaged with the first and second confluence input gears and connected with the input shaft.
According to yet another aspect of the present invention, the six speed transmission has first through sixth forward gears and a reverse gear.
The utility model can obtain one or more of the following technical effects:
1. by means of the shunting of the two groups of parallel shafts, the bearing pressure of a single pair of gears is reduced, and the whole gearbox can bear larger torque;
2. the hierarchical high-low gear shifting is realized through a planet row and a synchronizer;
3. the motor is used as power input, and a reverse gear mechanism of the gearbox is eliminated by utilizing the property that the motor can reverse;
4. the layout of the gearbox is simple and compact;
5. the gear shifting mechanism has a uniform transmission step ratio and good gear shifting smoothness;
6. according to actual requirements, a single motor or double motors can be matched to serve as power sources.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic representation of a six speed transmission according to a first preferred embodiment of the present invention.
Fig. 2 is a schematic view of a six speed transmission according to a second preferred embodiment of the utility model.
Detailed Description
The best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings, wherein the detailed description is for the purpose of illustrating the utility model in detail, and is not to be construed as limiting the utility model, as various changes and modifications can be made therein without departing from the spirit and scope thereof, which are intended to be encompassed within the appended claims.
Example 1
According to a preferred embodiment of the present invention, referring to fig. 1, there is provided a six speed transmission characterized by comprising:
an input shaft 10;
a first synchronizer gear 14 connected with the input shaft 10;
a second synchronizer gear 18 connected with the input shaft 10;
a first drive gear 11;
a first driven gear 12 and a second driven gear 13, which are respectively engaged with the first driving gear 11;
a second drive gear 15;
a third driven gear 16 and a fourth driven gear 17, which are respectively engaged with the second driving gear 15;
an intermediate shaft 20;
a third drive gear 21 connected to the intermediate shaft 20;
a fifth driven gear 22 and a sixth driven gear 23 respectively engaged with the third driving gear 21, wherein the first driven gear 12, the third driven gear 16 and the fifth driven gear 22 are connected by a first parallel shaft 31, and the second driven gear 13, the fourth driven gear 17 and the sixth driven gear 23 are connected by a second parallel shaft 32;
a counter gear 19 connected to the counter shaft 20;
a first synchronizer C1 selectively connecting the first synchronizer gear 14 with the first driving gear 11 or the second driving gear 15 and selectively disconnecting the first synchronizer gear 14 with the first driving gear 11 and the second driving gear 15;
a second synchronizer C2 selectively connecting or disconnecting the second synchronizer gear 18 with the countershaft gear 19;
a planetary row comprising a sun gear 24, planet gears, a planet carrier 26 and a ring gear 25, said sun gear 24 being connected to said intermediate shaft 20, said planet carrier 26 being connected to an output shaft 30;
a third synchronizer gear 28 connected to the ring gear 25;
an output shaft gear 29 connected to the output shaft 30; and
a third synchronizer C3 selectively connecting the third synchronizer gear 28 with the case 27 or the output shaft gear 29 and selectively disconnecting the third synchronizer gear 28 from the case 27 and the output shaft gear 29.
Preferably, the first driving gear 11 has a first central hole through which the input shaft 10 passes.
Preferably, the second driving gear 15 has a second central hole through which the input shaft 10 passes.
Preferably, the ring gear is connected to the third synchronizer gear via a flange 33.
According to a further preferred embodiment of the utility model said first parallel axis 31 is arranged parallel to the input shaft 10 and the second parallel axis 32.
According to a further preferred embodiment of the utility model, the input shaft 10, the intermediate shaft 20 and the output shaft 30 are arranged coaxially.
According to another preferred embodiment of the present invention, the first driving gear 11, the first synchronizer gear 14, the second driving gear 15 and the second synchronizer gear 18 are sequentially arranged along the direction of the input shaft 10.
According to a further preferred embodiment of the present invention, the counter gear 19, the third driving gear 21 and the sun gear 24 are arranged in sequence along the counter shaft 20.
According to a further preferred embodiment of the present invention, the six-speed transmission has a symmetrical arrangement with the direction in which the input shaft 10 extends as the center axis.
According to another preferred embodiment of the present invention, referring to fig. 2, the six speed transmission further comprises: a first confluence input gear 42 connected to an output shaft M1 of the first motor; a second confluence input gear 43 connected to an output shaft M2 of the second motor; and a confluence output gear 41 engaged with the first and second confluence input gears 42 and 43 and connected to the input shaft 10.
According to a further preferred embodiment of the utility model, the six-speed gearbox has first to sixth forward gears and a reverse gear.
According to another preferred embodiment of the present invention, a forward gear corresponding to a speed ratio required for a reverse gear is selected, and the reverse gear is achieved by reversing the electric motor.
According to a further preferred embodiment of the utility model, the ring gear 25 is connected to the third synchronizer gear 28 via a flange 33.
The working principle of the utility model is as follows.
A first forward gear: the synchronizer C1 is shifted to the left to integrally connect the synchronizer C1 gear 14 with the first drive gear 11, the synchronizer C2 keeps the left stationary, and the synchronizer C3 is shifted to the left to integrally connect the synchronizer C3 gear 28 with the housing 27. Power is transmitted to the C1 synchronizer gear 14 from the input shaft 10, the C1 synchronizer gear 14 is connected with the first driving gear 11 into a whole, and the power is transmitted to the first driven gear 12 and the second driven gear 13 from the first driving gear 11, so that first-stage speed reduction and power splitting are realized. The first driven gear 12 and the fifth driven gear 22 are fixedly connected on the parallel shaft 31, the second driven gear 13 and the sixth driven gear 23 are fixedly connected on the parallel shaft 32, and power is transmitted to the third driving gear 21 through the fifth driven gear 22 and the sixth driven gear 23, so that second-stage speed reduction and power confluence are realized. The third driving gear 21 and the sun gear 24 are fixedly connected on the intermediate shaft 20, power is transmitted to the planet row from the sun gear 24, the gear ring 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, the C3 synchronizer gear 28 and the box 27 are connected into a whole through the synchronizer C3, therefore, the gear ring 25 and the box 27 are connected into a whole, the gear ring 25 is fixed, and power is transmitted to the planet carrier 26 from the sun gear 24, so that third-stage speed reduction is realized. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
A second forward gear: the synchronizer C1 is shifted to the right, the synchronizer C1 gear 14 is integrally connected to the second drive gear 15, the synchronizer C2 is kept stationary at the left, and the synchronizer C3 is shifted to the left, the synchronizer C3 gear 28 is integrally connected to the housing 27. Power is transmitted to the C1 synchronizer gear 14 from the input shaft 10, the C1 synchronizer gear 14 is connected with the second driving gear 15 into a whole, and the power is transmitted to the third driven gear 16 and the fourth driven gear 17 from the second driving gear 15, so that first-stage speed reduction and power splitting are realized. The third driven gear 16 and the fifth driven gear 22 are fixedly connected on the parallel shaft 31, the fourth driven gear 17 and the sixth driven gear 23 are fixedly connected on the parallel shaft 32, and power is transmitted to the third driving gear 21 through the fifth driven gear 22 and the sixth driven gear 23, so that second-stage speed reduction and power confluence are realized. The third driving gear 21 and the sun gear 24 are fixedly connected on the intermediate shaft 20, power is transmitted to the planet row from the sun gear 24, the gear ring 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, the C3 synchronizer gear 28 and the box 27 are connected into a whole through the synchronizer C3, therefore, the gear ring 25 and the box 27 are connected into a whole, the gear ring 25 is fixed, and power is transmitted to the planet carrier 26 from the sun gear 24, so that third-stage speed reduction is realized. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
A third forward gear: the synchronizer C1 is shifted to the middle, the synchronizer C2 is shifted to the right, the C2 synchronizer gear 18 is integrally connected to the middle shaft gear 19, the synchronizer C3 is shifted to the left, and the C3 synchronizer gear 28 is integrally connected to the case 27. The power is transmitted to the C2 synchronizer gear 18 from the input shaft 10, and because the C2 synchronizer gear 18 and the intermediate shaft gear 19 are connected into a whole through the synchronizer C2, and the intermediate shaft gear 19 and the sun gear 24 are fixedly connected on the intermediate shaft 20, the power is transmitted to the sun gear 24 from the C2 synchronizer gear 18, and the direct transmission of the power is realized without speed reduction. Because the ring gear 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, and the C3 synchronizer gear 28 and the box 27 are connected into a whole through the synchronizer C3, the ring gear 25 and the box 27 are connected into a whole, the ring gear 25 is fixed, power is transmitted to the planet carrier 26 from the sun gear 24 through the planet row, and the first-stage speed reduction is realized. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
A fourth forward gear: the synchronizer C1 is shifted to the left to integrally connect the C1 synchronizer gear 14 with the first drive gear 11, the synchronizer C2 remains stationary on the left, and the synchronizer C3 is shifted to the right to integrally connect the C3 synchronizer gear 28 with the output shaft gear 29. Power is transmitted to the C1 synchronizer gear 14 from the input shaft 10, the C1 synchronizer gear 14 is connected with the first driving gear 11 into a whole, and the power is transmitted to the first driven gear 12 and the second driven gear 13 from the first driving gear 11, so that first-stage speed reduction and power splitting are realized. The first driven gear 12 and the fifth driven gear 22 are fixedly connected on the parallel shaft 31, the second driven gear 13 and the sixth driven gear 23 are fixedly connected on the parallel shaft 32, and power is transmitted to the third driving gear 21 through the fifth driven gear 22 and the sixth driven gear 23, so that second-stage speed reduction and power confluence are realized. The third driving gear 21 and the sun gear 24 are fixedly connected on the intermediate shaft 20, power is transmitted to the planet row from the sun gear 24, the gear ring 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, the C3 synchronizer gear 28 and the output shaft gear 29 are connected into a whole through the synchronizer C3, the planet carrier 26 and the output shaft gear 29 are fixedly connected on the output shaft 30, so the gear ring 25 and the planet carrier 26 are connected into a whole, the planet row integrally works, and power is transmitted to the planet carrier 26 from the sun gear 24, so that the direct transmission of power is realized without speed reduction. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
A fifth forward gear: the synchronizer C1 is shifted to the right, the synchronizer C1 gear 14 is integrally connected to the second drive gear 15, the synchronizer C2 is kept stationary on the left, the synchronizer C3 is shifted to the right, and the synchronizer C3 gear 28 is integrally connected to the output shaft gear 29. Power is transmitted to the C1 synchronizer gear 14 from the input shaft 10, the C1 synchronizer gear 14 is connected with the second driving gear 15 into a whole, and the power is transmitted to the third driven gear 16 and the fourth driven gear 17 from the second driving gear 15, so that first-stage speed reduction and power splitting are realized. The third driven gear 16 and the fifth driven gear 22 are fixedly connected on the parallel shaft 31, the fourth driven gear 17 and the sixth driven gear 23 are fixedly connected on the parallel shaft 32, and power is transmitted to the third driving gear 21 through the fifth driven gear 22 and the sixth driven gear 23, so that second-stage speed reduction and power confluence are realized. The third driving gear 21 and the sun gear 24 are fixedly connected on the intermediate shaft 20, power is transmitted to the planet row from the sun gear 24, the gear ring 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, the C3 synchronizer gear 28 and the output shaft gear 29 are connected into a whole through the synchronizer C3, the planet carrier 26 and the output shaft gear 29 are fixedly connected on the output shaft 30, so the gear ring 25 and the planet carrier 26 are connected into a whole, the planet row integrally works, and power is transmitted to the planet carrier 26 from the sun gear 24, so that the direct transmission of power is realized without speed reduction. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
A sixth forward gear: the synchronizer C1 is shifted to the middle, the synchronizer C2 is shifted to the right, the C2 synchronizer gear 18 is integrally connected to the middle shaft gear 19, the synchronizer C3 is shifted to the right, and the C3 synchronizer gear 28 is integrally connected to the output shaft gear 29. Power is transmitted to the C2 synchronizer gear 18 from the input shaft 10, and because the C2 synchronizer gear 18 and the intermediate shaft gear 19 are connected into a whole through the synchronizer C2, the intermediate shaft gear 19 and the sun gear 24 are fixedly connected on the intermediate shaft 20, and the power is transmitted to the sun gear 24 from the C2 synchronizer gear 18, the direct transmission of the power is realized, and the speed is not reduced. Because the gear ring 25 and the C3 synchronizer gear 28 are connected into a whole through the connecting flange 33, the C3 synchronizer gear 28 and the output shaft gear 29 are connected into a whole through the synchronizer C3, and the planet carrier 26 and the output shaft gear 29 are fixedly connected on the output shaft 30, the gear ring 25 and the planet carrier 26 are connected into a whole, the planet row works integrally, power is transmitted to the planet carrier 26 through the sun gear 24, and direct transmission of the power is realized without speed reduction. The carrier 26 is fixed to the output shaft 30, and power is transmitted from the carrier 26 to the output shaft 30.
Reversing gear: and selecting a forward gear corresponding to the speed ratio required by the reverse gear, ensuring the control logic to be consistent, and reversing the motor.
Example 2
As shown in fig. 2, the control logic and the gear shifting process are basically the same as those of embodiment 1, except that the power source of the input shaft 10 is input from a single motor, and is converted into a parallel shaft double motor through a set of gear confluence.
The double-motor power converging process:
the confluence output gear 42 is fixedly connected with an output shaft M1 of the motor 1, the confluence output gear 43 is fixedly connected with an output shaft M2 of the motor 2, power is transmitted to the confluence output gear 41 through the confluence gear 42 and the confluence gear 43 by the double motors, and the confluence output gear 41 is fixedly connected with the intermediate shaft, so that the power is transmitted to the intermediate shaft 10.
The utility model can obtain one or more of the following technical effects:
1. by means of the shunting of the two groups of parallel shafts, the bearing pressure of a single pair of gears is reduced, and the whole gearbox can bear larger torque;
2. the hierarchical high-low gear shifting is realized through a planet row and a synchronizer;
3. the motor is used as power input, and a reverse gear mechanism of the gearbox is eliminated by utilizing the property that the motor can reverse;
4. the layout of the gearbox is simple and compact;
5. the gear shifting mechanism has a uniform transmission step ratio and good gear shifting smoothness;
6. according to actual requirements, a single motor or double motors can be matched to serve as power sources.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A six-speed transmission, comprising:
an input shaft;
a first synchronizer gear connected with the input shaft;
a second synchronizer gear connected with the input shaft;
a first drive gear;
the first driven gear and the second driven gear are respectively meshed with the first driving gear;
a second driving gear;
the third driven gear and the fourth driven gear are respectively meshed with the second driving gear;
an intermediate shaft;
the third driving gear is connected to the intermediate shaft;
a fifth driven gear and a sixth driven gear which are respectively meshed with the third driving gear, wherein the first driven gear, the third driven gear and the fifth driven gear are connected through a first parallel shaft, and the second driven gear, the fourth driven gear and the sixth driven gear are connected through a second parallel shaft;
a countershaft gear connected to the countershaft;
the first synchronizer is selectively connected with the first synchronizer gear and the first driving gear or the second driving gear and selectively disconnected from the first synchronizer gear and the first driving gear and the second driving gear;
a second synchronizer selectively connecting or disconnecting the second synchronizer gear and the countershaft gear;
the planet row comprises a sun gear, a planet carrier and a gear ring, wherein the sun gear is connected with the intermediate shaft, and the planet carrier is connected with an output shaft;
a third synchronizer gear connected with the gear ring;
an output shaft gear connected to the output shaft; and
and the third synchronizer is used for selectively connecting the third synchronizer gear with the box or the output shaft gear and selectively disconnecting the third synchronizer gear from the box and the output shaft gear, and the gear ring is connected with the third synchronizer gear through a flange.
2. The six-speed transmission of claim 1, wherein the first parallel shaft is disposed parallel to the input shaft and the second parallel shaft.
3. The six-speed transmission of claim 2, wherein the input, intermediate and output shafts are coaxially arranged.
4. A six speed transmission according to any one of claims 1 to 3 wherein the first drive gear, first synchroniser gear, second drive gear and second synchroniser gear are arranged in sequence along the direction of the input shaft.
5. The six-speed transmission of claim 4, wherein the countershaft gear, third drive gear, and sun gear are arranged sequentially along the countershaft.
6. The six-speed transmission according to claim 5, characterized in that the six-speed transmission has a symmetrical arrangement with the input shaft extending as a central axis.
7. A six speed transmission according to any one of claims 1 to 3 further comprising: the first confluence input gear is connected with an output shaft of the first motor; the second confluence input gear is connected with an output shaft of the second motor; and a confluence output gear engaged with the first and second confluence input gears and connected with the input shaft.
8. The six-speed gearbox according to any one of claims 1 to 3, characterized in that the six-speed gearbox has first to sixth forward gears and a reverse gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817757.1U CN215831063U (en) | 2021-08-05 | 2021-08-05 | Six-gear gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121817757.1U CN215831063U (en) | 2021-08-05 | 2021-08-05 | Six-gear gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215831063U true CN215831063U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121817757.1U Active CN215831063U (en) | 2021-08-05 | 2021-08-05 | Six-gear gearbox |
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| Country | Link |
|---|---|
| CN (1) | CN215831063U (en) |
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2021
- 2021-08-05 CN CN202121817757.1U patent/CN215831063U/en active Active
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