CN215172163U - Three-gear transmission system with double-motor distributed configuration - Google Patents
Three-gear transmission system with double-motor distributed configuration Download PDFInfo
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- CN215172163U CN215172163U CN202121250538.XU CN202121250538U CN215172163U CN 215172163 U CN215172163 U CN 215172163U CN 202121250538 U CN202121250538 U CN 202121250538U CN 215172163 U CN215172163 U CN 215172163U
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- gearbox
- motor
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- driven
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Abstract
The utility model discloses a three-gear transmission system with a double-motor distributed structure, which comprises a first gearbox, a second gearbox, a first driving motor and a second driving motor; the first gearbox structure is the same as the second gearbox structure, is provided with an input shaft and an output shaft, is the same as the second gearbox structure, is connected with the gear shifting fork through the combination sleeve, and is driven by the gear shifting motor through the worm wheel and the worm. The utility model saves the gear selecting mechanism, directly completes the gear shifting action by the gear shifting motor, optimizes the internal structure of the gearbox, adopts the large transmission ratio design of the worm gear-ball screw combined transmission, and has high transmission precision, stable work and high reliability; the system has no power interruption during gear shifting, and can be driven in various driving modes, thereby meeting the requirements of vehicles under different conditions.
Description
Technical Field
The utility model relates to an automobile transmission system is exactly a three fender transmission systems of bi-motor distributing type configuration.
Background
The electric automobile is driven by a motor, the characteristics of wide working range and high efficiency of the motor are considered, the existing electric automobile in the current market mainly takes a single-speed transmission as a main part, namely a speed reducer with a fixed gear ratio is adopted, the rotating speed of a driving motor is generally higher and exceeds 10000rpm, the requirement on the overall performance of the motor is higher, meanwhile, because the speed ratio adjusting range of the single-speed transmission is limited, the acceleration performance of the automobile is good in a low-speed stage, but the acceleration performance is poor in a high-speed stage, and in addition, the heavy load, the climbing capability and the long-time high-speed cruising performance of the automobile are all limited to a certain extent.
The multi-speed transmission can enable a vehicle to have better power performance and higher running efficiency, and the maximum output torque of the motor can be reduced by a large transmission ratio during low-gear operation; when the high-gear works, the high-speed required rotating speed of the motor can be reduced by the small transmission ratio, the running environment of the motor is improved, the motor is prevented from working for a long time under the working condition of high rotating speed or low rotating speed and large torque, the running efficiency of the motor is improved, the continuous driving process of a vehicle is promoted, and the complexity of a transmission system and the cost of the whole vehicle are increased to a certain extent. The AMT transmission has the advantages of simple structure, low cost and relatively mature technology, and becomes the first choice of the electric automobile transmission, but the pause and the pause of the gear shifting process of the AMT gearbox and the power interruption can influence the comfort of passengers, so that the structure of the transmission system of the electric automobile is optimized, and the research on the multi-gear transmission applicable to the electric automobile is particularly important.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a three keep off transmission system of bi-motor distributed configuration, unpowered interruption when this system shifts, multiple drive mode drives, satisfies the needs under the vehicle different situation.
In order to solve the above technical problem, the utility model discloses a following technical means:
a three-gear transmission system with a double-motor distributed configuration comprises a first gearbox, a second gearbox, a first driving motor and a second driving motor;
the first gearbox is provided with a first input shaft, a first output shaft, a first main reduction gear and a first gear shifting motor, a first gear driving gear, a second gear driving gear and a first synchronizer are arranged on the first input shaft, a first gear shifting fork is arranged on a combination sleeve of the first synchronizer, the first gear shifting fork is connected with a first lead screw, a first worm wheel is arranged on the first lead screw, the first worm wheel is meshed with a first worm, the first worm is driven by the first gear shifting motor, and a first output gear, a first gear driven gear and a first second gear driven gear are arranged on the first output shaft; the first output gear is meshed with the first main reduction gear;
the second gearbox is provided with a second input shaft, a second output shaft, a second main reduction gear and a second gear shifting motor, a second-shaft second-gear driving gear, a third-gear driving gear and a second synchronizer are arranged on the second input shaft, a second gear shifting fork is arranged on a combination sleeve of the second synchronizer, the second gear shifting fork is connected with a second lead screw, a second worm wheel is arranged on the second lead screw, the second worm wheel is meshed with a second worm, and the second worm is driven by the second gear shifting motor; a second shaft second-gear driven gear and a third-gear driven gear are mounted on the second output shaft; the second output gear is meshed with the second main reduction gear.
The gear-up process:
(1) the first gear is lifted and the second gear is lifted:
the first gearbox is in a first-gear working state, when the first gear needs to be lifted to the second gear, the second gear in the second gearbox is shifted to the second gear, the first gear in the first gearbox is picked off, and meanwhile the second gear in the second gearbox is shifted to the second gear, namely a second-shaft second-gear driving gear and a second-shaft second-gear driven gear are meshed to work.
(2) Two gears are lifted to three gears:
the second gearbox is in a second-gear working state, when the second gearbox needs to be lifted to a third gear, the first gearbox is lifted to the second gear, namely, a second-gear driving gear and a second-gear driven gear are meshed to work, then the second gear in the second gearbox is picked off, the third gear is prepared for gear shifting, and then the second gearbox is shifted to the third gear while the second-gear in the first gearbox is picked off, namely, a third-gear main gear and a third-gear driven gear are meshed to work.
A gear-down process:
(1) the third gear is lowered and the second gear is lowered:
the second gearbox is in a three-gear working state, when the gear needs to be lowered to the second gear, the gear shifting preparation is carried out on the second gear in the first gearbox, the first gearbox is shifted to the second gear when the third gear is picked off, the second gear in the first gearbox is shifted to the second gear when the second gear is picked off, and namely the second-shaft second-gear driving gear and the second-gear driven gear are meshed to work.
(2) Two gears are lowered for one gear:
the second gearbox is in a two-gear working state, when the gear needs to be lowered to the first gear, the first gearbox is shifted for gear shifting preparation in the first gear, then the first gearbox is shifted to the first gear while the second gearbox is picked off, and the first-gear driving gear and the first-gear driven gear are meshed for working.
Dual motor four drive mode:
when the first gearbox and the second gearbox are simultaneously in two gears, namely, a two-gear driving gear in the first gearbox and a two-gear driven gear are meshed to work, a two-gear driving gear in the second gearbox and a two-gear driven gear are meshed to work, and four-wheel drive can be realized through double-motor driving.
The first worm is in screw connection with the first gear shifting motor, and the second worm is in screw connection with the second gear shifting motor.
Through the screw connection, the connection of relevant parts is stable and reliable.
Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are:
(1) the setting of two gearboxes of this technical scheme shifts through above-mentioned process, realizes the output of unpowered interruption, makes power take off more steady.
(2) The gear shifting of the two gearboxes is realized by driving a worm gear mechanism to rotate through a gear shifting motor to drive a lead screw to rotate, the lead screw is rotated to push a gear shifting fork to move left and right, so that a combination sleeve is rapidly and synchronously completed with a gear ring to be meshed under the action of a synchronizer and the gear shifting fork to perform gear shifting action.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a perspective view of the first transmission of the present invention.
Fig. 3 is a perspective view of the second transmission according to the present invention.
Description of reference numerals: 1. a first shift motor; 2. tightening the screw; 3. a first worm; 4. a first lead screw; 5. a first worm gear; 6, a second gear driving gear; 7. a first shift fork; 8. a first tapered roller bearing; 9. a second driven gear; 10. a first bushing; 11. a first-gear driven gear; 12. a first main reduction gear; 13. a first output shaft; 14. a first input shaft; 15. a first gear driving gear; 16. a second shift motor; 17. tightening the screw; 18. a second worm; 19. a second lead screw; 20. a second worm gear; 21. a second gear driving gear; 22. a second shift fork; 23. a second tapered roller bearing; 24. a second driven gear; 25. a second shaft sleeve; 26. a third-gear driven gear; 27. a second main reduction gear; 28. a second output shaft; 29. a second input shaft; 30. a third gear drive gear; 31. a first drive motor; 32. a second drive motor.
Detailed Description
The present invention will be further described with reference to the following examples.
Referring to fig. 1 to fig. 3, the three-gear transmission system with a dual-motor distributed configuration of the present invention is composed of a first transmission case, a second transmission case, a first driving motor 31, and a second driving motor 32; the first gearbox is provided with a first input shaft 14, a first output shaft 13, a first main reduction gear 12 and a first gear shifting motor 1, a first-gear driving gear 15, a second-gear driving gear 6 and a first synchronizer are mounted on the first input shaft 14, a first gear shifting fork 7 is arranged on a combination sleeve of the first synchronizer, the first gear shifting fork 7 is connected with a first lead screw 4, a first worm gear 5 is mounted on the first lead screw 4, the first worm gear 5 is meshed with a first worm 3, the first worm 3 is driven by the first gear shifting motor 1, and a first output gear, a first-gear driven gear 11 and a first-shaft second-gear driven gear 9 are mounted on the first output shaft 13; the first output gear meshes with the first main reduction gear 12; the second gearbox is provided with a second input shaft 29, a second output shaft 28, a second main reduction gear 27 and a second gear shifting motor 16, a second-shaft second-gear driving gear 21, a third-gear driving gear 30 and a second synchronizer are arranged on the second input shaft 29, a second gear shifting fork 21 is arranged on a combination sleeve of the second synchronizer, the second gear shifting fork 21 is connected with a second lead screw 19, a second worm gear 20 is arranged on the second lead screw 19, the second worm gear 20 is meshed with a second worm 18, and the second worm 18 is driven by the second gear shifting motor; a second-gear driven gear 24 and a third-gear driven gear 26 are mounted on the second output shaft 28; the second output gear meshes with the second final reduction gear 27.
The utility model discloses rotate by gear shifting motor drive worm gear mechanism and drive the lead screw rotatory when shifting, the lead screw is rotatory to be promoted to shift the shift fork and is removed the removal, make the combination cover accomplish the action of shifting with treating the ring gear of meshing rapidly in step under the effect of synchronous ware with the shift fork of shifting, this mechanism saves the selection and keeps off the mechanism, the action of shifting is directly accomplished by gear shifting motor, gearbox inner structure has been optimized, gear shifting mechanism adopts worm gear-ball combined transmission's big drive ratio design, the transmission precision is high, it is steady to work, the reliability is high.
The utility model discloses the unpowered interruption concrete implementation step that can realize the overall process of shifting does:
the gear-up process:
(1) the first gear is lifted and the second gear is lifted:
the first gearbox is in a first-gear working state, when the first gearbox needs to be lifted to a second gear, the second-gear in the second gearbox is prepared for gear shifting, the first gear in the first gearbox is picked off, and the second gearbox is shifted to the second gear, namely, the second-shaft second-gear driving gear 21 and the second-shaft second-gear driven gear 24 are meshed to work.
(2) Two gears are lifted to three gears:
the second gearbox is in a second-gear working state, when the third gear needs to be raised, the first gearbox is raised to the second gear, namely, the second-gear driving gear 6 is meshed with the first-shaft second-gear driven gear 9 to work, then the second gear in the second gearbox is picked off, the third gear is prepared for gear shifting, then the second gear in the first gearbox is picked off, and meanwhile, the second gearbox is shifted to the third gear, namely, the third-gear main gear 30 is meshed with the third-gear driven gear 26 to work.
A gear-down process:
(1) the third gear is lowered and the second gear is lowered:
the second gearbox is in a three-gear working state, when the gear needs to be lowered to the second gear, the gear shifting preparation is carried out on the second gear in the first gearbox, the first gearbox is shifted to the second gear when the third gear is picked off, the second gearbox is shifted to the second gear when the second gear in the first gearbox is picked off, and namely the second-shaft second-gear driving gear 21 and the second-shaft second-gear driven gear 24 are meshed to work.
(2) Two gears are lowered for one gear:
the second gearbox is in a two-gear working state, when the gear needs to be lowered to the first gear, the first gearbox is shifted for gear shifting preparation in the first gear, then the first gearbox is shifted to the first gear while the second gearbox is picked off, and the first-gear driving gear 15 and the first-gear driven gear 11 are meshed for working.
The utility model discloses the process of shifting that can realize two motor four-wheel drive modes as follows:
when the first gearbox and the second gearbox are in two gears simultaneously, namely, a two-gear driving gear 6 in the first gearbox is meshed with a first-shaft two-gear driven gear 9 to work, a two-shaft two-gear driving gear 21 in the second gearbox is meshed with a second-shaft two-gear driven gear 24 to work, and four-wheel drive can be realized through double-motor driving.
The first worm 3 is in screw connection with the first gear shifting motor 1, and the second worm 18 is in screw connection with the second gear shifting motor 16.
The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all structural equivalents made by using the contents of the specification and drawings are included in the scope of the present invention.
Claims (2)
1. The utility model provides a three keep off transmission system of bi-motor distributed configuration, includes first gearbox, second gearbox, first driving motor, second driving motor, its characterized in that:
the first gearbox is provided with a first input shaft (14), a first output shaft (13), a first main reduction gear (12) and a first gear shifting motor (1), a first gear driving gear (15), a second gear driving gear (6) and a first synchronizer are mounted on the first input shaft (14), a first gear shifting fork (7) is arranged on a combination sleeve of the first synchronizer, the first gear shifting fork (7) is connected with a first lead screw (4), a first worm gear (5) is mounted on the first lead screw (4), the first worm gear (5) is meshed with a first worm (3), the first worm (3) is driven by the first gear shifting motor (1), and a first output gear, a first gear driven gear (11) and a first shaft second gear driven gear (9) are mounted on the first output shaft (13); the first output gear is meshed with a first main reducing gear (12);
the second gearbox is provided with a second input shaft (29), a second output shaft (28), a second main reduction gear (27) and a second gear shifting motor (16), a second-gear driving gear (21), a third-gear driving gear (30) and a second synchronizer are mounted on the second input shaft (29), a second gear shifting fork (22) is arranged on a combination sleeve of the second synchronizer, the second gear shifting fork (22) is connected with a second lead screw (19), a second worm wheel (20) is mounted on the second lead screw (19), the second worm wheel (20) is meshed with a second worm (18), and the second worm (18) is driven by the second gear shifting motor (16); a second-gear driven gear (24) and a third-gear driven gear (26) are mounted on the second output shaft (28); the second output gear meshes with a second main reduction gear (27).
2. The three-gear transmission system of a two-motor distributed configuration according to claim 1, characterized in that: the first worm (3) is in screw connection with the first gear shifting motor (1), and the second worm (18) is in screw connection with the second gear shifting motor (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121250538.XU CN215172163U (en) | 2021-06-07 | 2021-06-07 | Three-gear transmission system with double-motor distributed configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121250538.XU CN215172163U (en) | 2021-06-07 | 2021-06-07 | Three-gear transmission system with double-motor distributed configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215172163U true CN215172163U (en) | 2021-12-14 |
Family
ID=79391158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121250538.XU Expired - Fee Related CN215172163U (en) | 2021-06-07 | 2021-06-07 | Three-gear transmission system with double-motor distributed configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215172163U (en) |
-
2021
- 2021-06-07 CN CN202121250538.XU patent/CN215172163U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |