CN210027019U - Coupling speed change gear for vehicle - Google Patents
Coupling speed change gear for vehicle Download PDFInfo
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- CN210027019U CN210027019U CN201920983900.0U CN201920983900U CN210027019U CN 210027019 U CN210027019 U CN 210027019U CN 201920983900 U CN201920983900 U CN 201920983900U CN 210027019 U CN210027019 U CN 210027019U
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Abstract
The utility model relates to an automobile-used coupling speed change gear, including casing, first motor, second motor, planetary gear mechanism, input shaft and output shaft, in planetary gear mechanism located the casing, planetary gear mechanism's planet carrier was connected with the power take off end transmission of automobile-used engine, and planetary gear mechanism's sun gear is connected with first motor drive, and planetary gear mechanism's ring gear is connected with second motor drive. The input shaft and the output shaft are arranged along the same straight line and extend away from each other. The input shaft is fixedly arranged on the side surface of the planet carrier, and the planet carrier is in transmission connection with the power output end of the vehicle engine through the input shaft. The output shaft is fixedly arranged on the side surface of the gear ring, and the gear ring drives a driving wheel of the vehicle through the output shaft. The utility model discloses a structure transmission efficiency is higher and the suitability is wider.
Description
Technical Field
The utility model relates to a power transmission part field for the vehicle, concretely relates to automobile-used coupling speed change gear.
Background
Under the call of two world issues of energy conservation and environmental protection, the hybrid electric vehicle is the best choice for solving the problem of fuel consumption and economy at present in order to deal with increasingly strict fuel laws and regulations. The method is not only applied to the field of cars, but also applied to the field of buses, such as various medium and large buses, public transport vehicles and the like, and is more suitable for responding to calls for energy conservation and emission reduction.
Chinese patent application No. CN103153665B discloses a hybrid vehicle drive device including a planetary gear mechanism (10), a one-way clutch (20), and a torque limiter (30), a sun gear (11) of the planetary gear mechanism being connected to a first rotating electric machine (MG 1), a carrier (14) being connected to an engine (1), a ring gear (13) being connected to a second rotating electric machine (MG 2) and drive wheels, the ring gear being disposed on the inner peripheral side of a hollow rotating body (16), and is connected to the drive wheels via an intermediate shaft transmission gear (15) disposed on the outer peripheral side of the rotating body, and when the rotation direction of the ring gear during forward traveling of the hybrid vehicle is set to the positive direction, the one-way clutch restricts rotation of the carrier in the negative direction, the torque limiter operates in accordance with transmission torque of the one-way clutch to restrict the transmission torque of the one-way clutch, and the one-way clutch and the torque limiter are disposed inside the rotating body. However, this solution is not suitable for all vehicle models, in particular for applications in the passenger car field, and has the following disadvantages: firstly, the parallel shaft transmission scheme adopted by the power input and output of the scheme can generate larger torsional stress when transmitting torque, and particularly in the field of passenger cars, the parallel shaft transmission scheme is difficult to apply because the passenger cars generally have the characteristic of larger power, namely the scheme has poor applicability and is difficult to apply to the field of passenger cars; secondly, the power output of the gear ring of the planetary gear mechanism of the scheme is also influenced by a plurality of transmission structures such as gears and the like, the whole power output efficiency is necessarily reduced, and the scheme is a transverse engine scheme; thirdly, the first motor and the second motor are arranged in parallel, a rotor shaft of the first motor and a rotating shaft of the engine are arranged on the same axis, the whole structure has poor vibration control effect, and the whole NVH level is low; fourth, the one-way clutch of this scheme's outer wheel is connected with the planet carrier and interior wheel is connected with the casing, has restricted one-way clutch's size, and especially explicit in the description of this scheme figure 1 shows, and one-way clutch is located the ring gear, has restricted one-way clutch's performance and heat-sinking capability, especially in the passenger train field, because the passenger train generally has the great characteristics of power, the one-way clutch performance and the heat-sinking capability of this scheme are difficult to be applicable.
Disclosure of Invention
The utility model provides a coupling speed change gear for vehicle to solve above-mentioned problem.
The utility model adopts the following technical scheme:
the utility model provides a vehicle coupling speed change gear, includes casing, first motor, second motor, planetary gear mechanism, input shaft and output shaft, and planetary gear mechanism locates in the casing, and planetary gear mechanism's planet carrier is connected with the power take off end transmission of automobile-used engine, and planetary gear mechanism's sun gear is connected with first motor transmission, and planetary gear mechanism's ring gear is connected with the second motor transmission. The input shaft and the output shaft are arranged along the same straight line and extend away from each other. The input shaft is fixedly arranged on the side surface of the planet carrier, and the planet carrier is in transmission connection with the power output end of the vehicle engine through the input shaft. The output shaft is fixedly arranged on the side surface of the gear ring, and the gear ring drives a driving wheel of the vehicle through the output shaft.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:
the utility model discloses a locate ring gear side and input shaft and output shaft along same straight line with automobile-used coupling speed change gear's output shaft and the structure that the extension set up that deviates from each other, the power take off of engine and automobile-used coupling speed change gear's coaxial design of power take off has been realized promptly, this structure does not need parallel shaft transmission power, consequently and torsional stress littleer and automobile-used coupling speed change gear's vibration is more controllable, coaxial design can also make the engine indulge and put concurrently, and the engine indulges puts the driving system transmission efficiency who will bring higher, can be suitable for benefits such as passenger train field. And the output shaft of the coupling speed change gear for the vehicle is arranged on the side surface of the gear ring, the circumferential outer edge of the gear ring is reserved to be matched with the transmission of the second motor, and the gear ratio of the transmission connection structure of the second motor can be conveniently set due to the fact that the gear ring has a certain size.
Further:
the input shaft is provided with an overrunning clutch, the overrunning clutch is connected with the input shaft and the shell and is used for limiting the reverse rotation of the input shaft, and the forward rotation direction of the input shaft is the rotation direction of driving the input shaft to rotate when the vehicle engine works.
The overrunning clutch comprises an inner wheel, a limiting mechanism and an outer wheel from inside to outside in sequence, the outer wheel is fixedly connected with the inner edge of the shell, the inner wheel is sleeved outside the input shaft, the inner wheel and the input shaft rotate synchronously, and the limiting mechanism is used for allowing the inner wheel to rotate in the forward direction and limiting the inner wheel to rotate in the reverse direction.
The sun gear is additionally provided with a first transmission gear which is fixedly arranged on the side surface of the sun gear, which is far away from the output shaft, the first transmission gear is arranged between the planet carrier and the overrunning clutch, the sun gear and the first transmission gear can be synchronously sleeved outside the input shaft in a fixed-shaft rotating manner, and the first motor is in transmission connection with the sun gear through the first transmission gear.
The input shaft fixing sleeve is provided with a connecting tooth, the connecting tooth is used for mounting the overrunning clutch, and one side of the connecting tooth, which is adjacent to the planetary gear mechanism, is adjacent to one side of the first transmission gear, which is far away from the position of the output shaft.
And a circle of second transmission teeth are distributed on the circumferential outer edge of the gear ring, and the second motor is in transmission connection with the gear ring through the second transmission teeth.
The rotor shaft of the first motor is provided with a first motor gear, and the first motor gear is meshed with the first transmission gear. And a rotor shaft of the second motor is provided with a second motor gear, and the second motor gear is meshed with the second transmission gear. The first motor gear and the second motor gear are respectively arranged on two sides of a vertical plane where the output shaft is located, and the first motor gear and the second motor gear are symmetrically arranged relative to the vertical plane where the output shaft is located.
The vehicle engine is a longitudinal engine. The input shaft and the output shaft extend in the longitudinal direction of the vehicle. The vehicle longitudinal direction is a vehicle longitudinal direction.
The input shaft is in driving connection with the power output end of the vehicle engine through a vibration damping torque limiter.
As can be seen from the above description of the structure of the further aspects of the present invention, compared with the prior art, the further aspects of the present invention have the following advantages:
first, this scheme has realized making first motor antiport and restriction planet carrier antiport through freewheel clutch's setting under the pure electric mode of going of automobile-used engine inoperative to realize first motor and second motor collaborative work, output power jointly. And locate input shaft and the cooperation in with freewheel clutch and connect the input shaft, the structure that the casing is fixed is connected to the foreign steamer, this position has sufficient space to arrange the freewheel clutch of driving system required performance (should have sufficient space for comparing in the scheme of background art with foreign steamer connection in the planet carrier, the freewheel clutch of this scheme is connected with the planet carrier via the input shaft through interior wheel, set up the position and select for use the size to receive other structural restrictions still less), and because freewheel clutch is whole bulky, therefore it is bigger with lubricated liquid area of contact, heat dispersion is better. The structure is particularly used on a passenger car mainly using pure electric driving, the coupling speed change device for the car can be matched with the first motor with larger torque and power, the working condition that the first motor and the second motor cooperatively output power for a longer time can be borne, and the structure durability is stronger.
Secondly, this scheme is through the structure that first motor gear and second motor gear set up about the vertical plane symmetry of input shaft place (first motor and second motor set up about the vertical plane symmetry of input shaft place promptly), optimizes whole automobile-used coupling speed change gear's structure, wholly better just can promote whole NVH level to structural vibration control, if this structure under the operating mode of first motor and second motor collaborative output power, the rotor shaft of two motor work is to opposite directions, and vibration can obtain suppression etc..
Drawings
Fig. 1 is a schematic structural diagram of the coupling speed changing device for a vehicle according to the present invention, wherein the first motor and the second motor are not shown in the drawing.
Fig. 2 is an exploded schematic view of the coupling transmission for a vehicle according to the present invention, wherein the first motor and the second motor are not shown in the drawing.
Fig. 3 is a rear view schematic diagram of the coupling speed changing device for a vehicle according to the present invention, wherein the first motor and the second motor are not shown in the drawing.
Fig. 4 is a schematic diagram of a coupling transmission for a vehicle according to the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Referring to fig. 1, 2 and 4, a coupling speed changing device for a vehicle includes a housing 9, a first motor 1, a second motor 2, a planetary gear mechanism, an input shaft 4 and an output shaft 5, wherein the planetary gear mechanism is disposed in the housing 9. The planetary gear mechanism comprises a sun gear 31, a plurality of planet gears 32, a gear ring 33 and a planet carrier 34, wherein the plurality of planet gears 32 are respectively and uniformly distributed in the gear ring 33 in a manner of being meshed with the inner edge of the gear ring 33, the planet gears 32 are rotatably and freely assembled on the planet carrier 34, the sun gear 31 is respectively and rotatably arranged in the middle of the arrangement position of the planet gears 32 in a manner of being meshed with the planet gears 32, and the sun gear 31, the planet carrier 34 and the gear ring 33 can be rotatably arranged around the same axis. The planet carrier 34 of the planetary gear mechanism is in transmission connection with the power output end of the vehicle engine 6, the sun gear 31 of the planetary gear mechanism is in transmission connection with the first motor 1, and the ring gear 33 of the planetary gear mechanism is in transmission connection with the second motor 2. The carrier 34 and the ring gear 33 are provided with side walls on the side facing away from the vehicle engine 6, and the side wall of the carrier 34 is provided adjacent to the side wall of the ring gear 33. The input shaft 4 is fixedly arranged on the side surface of the planet carrier 34, and the planet carrier 34 is in transmission connection with the power output end of the vehicle engine 6 through the input shaft 4. The output shaft 5 is fixedly arranged on the side surface of the gear ring 33, and the gear ring 33 drives the driving wheel of the vehicle through the output shaft 5. The input shaft 4 and the output shaft 5 are respectively disposed on two sides of the side walls of the carrier 34 and the ring gear 33 that face away from each other. The input shaft 4 and the output shaft 5 extend along the same straight line and away from each other. The vehicle engine 6 is a vertical engine. The input shaft 4 and the output shaft 5 extend in the longitudinal direction of the vehicle. The vehicle longitudinal direction is a vehicle longitudinal direction. The input shaft 4 is drivingly connected to the power take-off of the vehicle engine 6 via a vibration-damping torque limiter 7.
With continued reference to fig. 1, 2, and 4, the input shaft 4 is provided with an overrunning clutch 8, the overrunning clutch 8 is disposed to connect the input shaft 4 to the housing 9, the overrunning clutch 8 is configured to limit the reverse rotation of the input shaft 4, and the forward rotation direction of the input shaft 4 is the rotation direction in which the input shaft 4 is driven to rotate when the vehicle engine 6 is operated. The overrunning clutch 8 includes an inner wheel 81, a limiting mechanism and an outer wheel 82 in sequence from inside to outside, the outer wheel 82 is fixedly connected to the inner edge of the housing 9, the inner wheel 81 is sleeved outside the input shaft 4 and the inner wheel 81 and the input shaft 4 rotate synchronously, the limiting mechanism is disposed between the inner wheel 81 and the outer wheel 82, and the limiting mechanism is used for allowing the inner wheel 81 to rotate in the forward direction and limiting the inner wheel 81 to rotate in the reverse direction. The structure of the limiting mechanism, such as a wedge limiting mechanism, a roller limiting mechanism, etc., can be selected by those skilled in the art as desired. The input shaft 4 is fixedly sleeved with a connecting tooth for mounting the overrunning clutch 8, i.e., the inner wheel 81 is sleeved outside the connecting tooth. The outer ring 82 has a gear structure along the outer circumferential edge thereof, and the gear structure along the outer circumferential edge of the outer ring 82 is used for connection with the housing 9.
Referring to fig. 2, 3 and 4, the sun gear 31 is additionally provided with a first transmission gear 311, the first transmission gear 311 is fixedly disposed on a side surface of the sun gear 31 away from the output shaft 5, the first transmission gear 311 is disposed between the planet carrier 34 and the overrunning clutch 8, the sun gear 31 and the first transmission gear 311 are synchronously sleeved outside the input shaft 4 in a fixed-axis rotation manner, and the first motor 1 is in transmission connection with the sun gear 31 through the first transmission gear 311. The side of the connecting tooth adjacent to the planetary gear mechanism is adjacent to the side of the first transmission gear 311 away from the output shaft 5, i.e. the first transmission gear 311 and the sun gear 31 are fixed by the connecting tooth. A circle of second transmission teeth 331 is arranged on the circumferential outer edge of the gear ring 33, and the second motor 2 is in transmission connection with the gear ring 33 through the second transmission teeth 331. The rotor shaft of the first motor 1 is provided with a first motor gear 11, and the first motor gear 11 is engaged with the first transmission gear 311. The rotor shaft of the second motor 2 is provided with a second motor gear 21, and the second motor gear 21 is engaged with the second transmission gear 331. The first motor gear 11 and the second motor gear 21 are respectively disposed on both sides of a vertical plane on which the output shaft 5 is located, and the first motor gear 11 and the second motor gear 21 are symmetrically disposed with respect to the vertical plane on which the output shaft 5 is located.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (9)
1. A coupling speed change device for a vehicle comprises a shell, a first motor, a second motor and a planetary gear mechanism, wherein the planetary gear mechanism is arranged in the shell, a planet carrier of the planetary gear mechanism is in transmission connection with a power output end of a vehicle engine, a sun gear of the planetary gear mechanism is in transmission connection with the first motor, and a gear ring of the planetary gear mechanism is in transmission connection with the second motor; the method is characterized in that: the input shaft and the output shaft are arranged along the same straight line and extend away from each other; the input shaft is fixedly arranged on the side surface of the planet carrier, and the planet carrier is in transmission connection with the power output end of the vehicle engine through the input shaft; the output shaft is fixedly arranged on the side surface of the gear ring, and the gear ring drives a driving wheel of the vehicle through the output shaft.
2. The coupling transmission device for vehicle as claimed in claim 1, wherein: the input shaft is additionally provided with an overrunning clutch, the overrunning clutch is connected with the input shaft and the shell and used for limiting the reverse rotation of the input shaft, and the forward rotation direction of the input shaft is the rotation direction of driving the input shaft to rotate when the vehicle engine works.
3. The coupling transmission device for vehicle as claimed in claim 2, wherein: the overrunning clutch comprises an inner wheel, a limiting mechanism and an outer wheel from inside to outside in sequence, the outer wheel is fixedly connected with the inner edge of the shell, the inner wheel is sleeved outside the input shaft, the inner wheel and the input shaft rotate synchronously, and the limiting mechanism is used for allowing the inner wheel to rotate in the forward direction and limiting the inner wheel to rotate in the reverse direction.
4. The coupling transmission device for vehicle as claimed in claim 2, wherein: the sun gear is additionally provided with a first transmission gear which is fixedly arranged on the side surface of one side of the sun gear, which is far away from the output shaft, the first transmission gear is arranged between the planet carrier and the overrunning clutch, the sun gear and the first transmission gear can be synchronously sleeved outside the input shaft in a shaft-fixing rotation mode, and the first motor is in transmission connection with the sun gear through the first transmission gear.
5. The coupling transmission device for vehicle as claimed in claim 4, wherein: the input shaft is fixedly sleeved with a connecting tooth, the connecting tooth is used for mounting the overrunning clutch, and one side of the connecting tooth, which is adjacent to the planetary gear mechanism, is adjacent to one side of the first transmission gear, which is deviated from the position of the output shaft.
6. The coupling transmission device for vehicle as claimed in claim 4, wherein: and a circle of second transmission teeth are distributed on the circumferential outer edge of the gear ring, and the second motor is in transmission connection with the gear ring through the second transmission teeth.
7. The coupling transmission device for vehicle as claimed in claim 6, wherein: a rotor shaft of the first motor is provided with a first motor gear, and the first motor gear is meshed with the first transmission gear; a rotor shaft of the second motor is provided with a second motor gear, and the second motor gear is meshed with the second transmission gear; the first motor gear and the second motor gear are respectively arranged on two sides of a vertical plane where the output shaft is located, and the first motor gear and the second motor gear are symmetrically arranged relative to the vertical plane where the output shaft is located.
8. The coupling transmission device for vehicle as claimed in claim 1, wherein: the vehicle engine is a longitudinal engine; the input shaft and the output shaft extend along the longitudinal direction of the vehicle; the vehicle longitudinal direction is the vehicle length direction.
9. The coupling transmission device for vehicle according to claim 8, wherein: the input shaft is in transmission connection with a power output end of the vehicle engine through a vibration damping torque limiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983900.0U CN210027019U (en) | 2019-06-27 | 2019-06-27 | Coupling speed change gear for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983900.0U CN210027019U (en) | 2019-06-27 | 2019-06-27 | Coupling speed change gear for vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN210027019U true CN210027019U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920983900.0U Active CN210027019U (en) | 2019-06-27 | 2019-06-27 | Coupling speed change gear for vehicle |
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| CN (1) | CN210027019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347721A (en) * | 2021-12-07 | 2022-04-15 | 杨小丽 | Main and auxiliary motor double-speed-ratio electric automobile drive axle |
-
2019
- 2019-06-27 CN CN201920983900.0U patent/CN210027019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347721A (en) * | 2021-12-07 | 2022-04-15 | 杨小丽 | Main and auxiliary motor double-speed-ratio electric automobile drive axle |
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