CN214138234U - Shiftable electric drive axle and independent suspension vehicle - Google Patents
Shiftable electric drive axle and independent suspension vehicle Download PDFInfo
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- CN214138234U CN214138234U CN202023202196.2U CN202023202196U CN214138234U CN 214138234 U CN214138234 U CN 214138234U CN 202023202196 U CN202023202196 U CN 202023202196U CN 214138234 U CN214138234 U CN 214138234U
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Abstract
The utility model discloses a shiftable electric drive axle and an independent suspension vehicle, wherein a first driving wheel is independently driven by a first driving component, and a second driving wheel is independently driven by a second driving component; the first driving assembly comprises a first motor, a first multi-gear speed reducing mechanism and a first hub reduction gear, and a first clutch and a second clutch are arranged on the first hub reduction gear; the second driving assembly comprises a second motor, a second multi-gear speed reducing mechanism and a second wheel reduction gear, and a third clutch and a fourth clutch are arranged on the second wheel reduction gear. The structure can be more flattened while the required transmission ratio is obtained through the reduction transmission structural form of the multi-gear reduction mechanism matched with the hub reduction gear, and the mechanism arrangement of the whole vehicle is more facilitated; and the working mode switching of two transmission ratios of the hub reduction gear is realized by configuring a clutch on the hub reduction gear, so that the speed adjusting range of the electric drive axle is larger.
Description
Technical Field
The utility model relates to an electric drive axle technical field especially relates to an electric drive axle and independent suspension vehicle of interchangeable fender.
Background
Electric motors are widely used in vehicles such as vehicles. The electric machine may be used in particular for an electric drive axle system of, for example, an electric only vehicle or a hybrid vehicle, in particular an electric only vehicle or a hybrid vehicle. In a vehicle with an independent suspension, a motor in an electric drive axle needs to transmit power to wheels through a transmission mechanism, the existing transmission mechanism usually occupies a large space, the whole vehicle is inconvenient to arrange, and a general electric vehicle mainly adopts the output power of the motor to adjust the speed, and the speed adjusting range is only limited to the adjusting range of the output power of the motor.
In summary, how to solve the problems that the occupied space of the transmission mechanism of the electric drive axle is large, the arrangement of the whole vehicle is inconvenient, and the speed adjusting range is only limited to the adjusting range of the output power of the motor becomes a technical problem to be solved urgently by the technical staff in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electric drive axle and independent suspension vehicle that can shift to solve the big whole car of drive mechanism occupation space of electric drive axle and arrange inconvenient and speed control scope and only confine the problem in motor output's control range.
In order to achieve the above object, the present invention provides a shiftable electric drive axle, which is suitable for an independent suspension vehicle, and comprises a first drive wheel and a second drive wheel symmetrically arranged on an independent suspension, wherein the first drive wheel is independently driven by a first drive assembly, and the second drive wheel is independently driven by a second drive assembly;
the first driving assembly comprises a first motor, a first multiple gear speed reducing mechanism and a first hub reduction gear, and an output shaft of the first motor is coaxially and fixedly connected with an input gear of the first multiple gear speed reducing mechanism; an output gear of the first multiple gear reduction mechanism is in transmission connection with a sun gear of the first wheel-side speed reducer through a first half shaft, a planet carrier of the first wheel-side speed reducer is connected with the first driving wheel, a gear ring of the first wheel-side speed reducer is in transmission connection with an axle housing through a first clutch, and the sun gear of the first wheel-side speed reducer is in transmission connection with the planet carrier of the first wheel-side speed reducer through a second clutch; the second clutch is disengaged when the first clutch is engaged and the second clutch is engaged when the first clutch is disengaged;
the second driving assembly comprises a second motor, a second multiple gear speed reducing mechanism and a second wheel reducer, and an output shaft of the second motor is coaxially and fixedly connected with an input gear of the second multiple gear speed reducing mechanism; an output gear of the second multi-gear speed reducing mechanism is in transmission connection with a sun gear of the second wheel-side speed reducer through a second half shaft, a planet carrier of the second wheel-side speed reducer is connected with the second driving wheel, a gear ring of the second wheel-side speed reducer is in transmission connection with the axle housing through a third clutch, and the sun gear of the second wheel-side speed reducer is in transmission connection with the planet carrier of the second wheel-side speed reducer through a fourth clutch; the fourth clutch is disengaged when the third clutch is engaged and engaged when the third clutch is disengaged.
Preferably, the first multiple gear reduction mechanism is a first triple gear reducer, the first triple gear reducer includes a first input gear, a first intermediate gear, and a first output gear, and the first intermediate gear is engaged with the first input gear and the first output gear, respectively.
Preferably, the second multiple gear reduction mechanism is a second triple gear reducer, the second triple gear reducer includes a second input gear, a second intermediate gear, and a second output gear, and the second intermediate gear is engaged with the second input gear and the second output gear, respectively.
Preferably, the first motor is located on one side of the first multiple gear reduction mechanism close to the first hub reduction gear.
Preferably, the second motor is located on one side of the second multiple gear reduction mechanism close to the second hub reduction gear.
Preferably, the first drive assembly is arranged symmetrically to the second drive assembly.
Preferably, the first motor and the second motor are the same in type.
Preferably, the planetary gear train of the first wheel reduction gear comprises a first planetary gear set and a second planetary gear set which are positioned on different planes, each of the first planetary gear set and the second planetary gear set comprises a plurality of planetary gears, and the planetary gears are rotatably connected with the planetary carrier of the first wheel reduction gear through rotating shafts; the planet gears on the first planet gear set and the planet gears on the second planet gear set are arranged in a staggered mode and are meshed with the sun gear and the gear ring of the first hub reduction gear.
Preferably, the planetary gear train of the second hub reduction gear comprises a third planetary gear set and a fourth planetary gear set which are positioned on different planes, and each of the third planetary gear set and the fourth planetary gear set comprises a plurality of planetary gears which are rotatably connected with the planetary carrier of the second hub reduction gear through rotating shafts; the planet gears on the third planet gear set and the planet gears on the fourth planet gear set are arranged in a staggered mode and are meshed with the sun gear and the gear ring of the second hub reduction gear.
Compared with the introduction content of the background art, the shiftable electric drive axle is suitable for an independent suspension vehicle and comprises a first drive wheel and a second drive wheel which are symmetrically arranged on an independent suspension, wherein the first drive wheel is independently driven through a first drive assembly, and the second drive wheel is independently driven through a second drive assembly; the first driving assembly comprises a first motor, a first multiple gear speed reducing mechanism and a first wheel reduction gear, and an output shaft of the first motor is coaxially and fixedly connected with an input gear of the first multiple gear speed reducing mechanism; an output gear of the first multi-gear speed reducing mechanism is in transmission connection with a sun gear of a first wheel-side speed reducer through a first half shaft, a planet carrier of the first wheel-side speed reducer is connected with a first driving wheel, a gear ring of the first wheel-side speed reducer is in transmission connection with an axle housing through a first clutch, and the sun gear of the first wheel-side speed reducer is in transmission connection with the planet carrier of the first wheel-side speed reducer through a second clutch; when the first clutch is engaged, the second clutch is disengaged, and when the first clutch is disengaged, the second clutch is engaged; the second driving assembly comprises a second motor, a second multiple gear speed reducing mechanism and a second wheel reducer, and an output shaft of the second motor is coaxially and fixedly connected with an input gear of the second multiple gear speed reducing mechanism; an output gear of the second multi-gear speed reducing mechanism is in transmission connection with a sun gear of a second wheel-side speed reducer through a second half shaft, a planet carrier of the second wheel-side speed reducer is connected with a second driving wheel, a gear ring of the second wheel-side speed reducer is in transmission connection with an axle housing through a third clutch, and the sun gear of the second wheel-side speed reducer is in transmission connection with the planet carrier of the second wheel-side speed reducer through a fourth clutch; the fourth clutch is disengaged when the third clutch is engaged and engaged when the third clutch is disengaged. In the practical application process, the first driving wheel is independently driven by the first driving assembly, the second driving wheel is independently driven by the second driving assembly, the first driving assembly outputs power through the first motor, the second driving assembly outputs power through the second motor, namely, wheels on two sides are respectively driven by different motors, the electronic control can be adopted to realize differential speed, the differential speed transmission mode is different from the traditional differential mechanism structure, the structure is simplified, the vehicle bending control is more accurate and smooth, the power consumption in the mechanical transmission process is reduced, and the use efficiency of energy is improved; meanwhile, the first motor transmits power to the first half shaft through the first multi-gear speed reducing mechanism, and then the power is transmitted to the sun gear of the first wheel reduction gear through the first half shaft, and the first wheel reduction gear has two working modes, wherein one working mode is as follows: the first clutch is engaged, the gear ring of the first hub reduction gear is fixedly connected with the axle housing, the second clutch is disengaged, and the sun gear of the first hub reduction gear transmits power to the planet carrier of the first hub reduction gear through the planetary gear train of the first hub reduction gear, so that a low-gear mode of speed reduction is realized; the other working mode is as follows: first clutch separation, first wheel reduction's ring gear and axle housing disconnect-from connection, the second clutch joint, and first wheel reduction's sun gear is fixed with first wheel reduction's planet carrier, and first wheel reduction's drive ratio is 1: 1, realizing a high-grade mode; similarly, the second electric machine transmits power to the second half shaft through the second multiple gear reduction mechanism, and then the power is transmitted to the sun gear of the second hub reduction gear through the second half shaft, and the second hub reduction gear also has two working modes, one working mode is: the third clutch is engaged, the gear ring of the second hub reduction gear is fixedly connected with the axle housing, the fourth clutch is disengaged, and the sun gear of the second hub reduction gear transmits power to the planet carrier of the second hub reduction gear through the planetary gear train of the second hub reduction gear, so that a low gear mode of speed reduction is realized; the other working mode is as follows: the separation of third clutch, second wheel reduction gear's ring gear and axle housing separation and connection, the joint of fourth clutch, second wheel reduction gear's sun gear is fixed with second wheel reduction gear's planet carrier, and second wheel reduction gear's drive ratio is 1: 1, a high-grade mode is realized, and the multiple gear reduction mechanism is matched with a reduction transmission structure form of a hub reduction gear, so that the structure can be more flattened while a required transmission ratio is obtained, the occupied space of a transmission mechanism is greatly reduced, the mechanism arrangement of the whole vehicle is facilitated, and the trend of light weight is met; and the working mode switching of two transmission ratios of the wheel reduction gear is realized by configuring the clutch on the wheel reduction gear, so that the speed adjusting range of the electric drive axle is larger, and the condition that the speed adjusting range is only limited to the output power of the motor is avoided.
Additionally, the utility model also provides an independent suspension vehicle, including electric drive axle, this electric drive axle is the electric drive axle that can shift gears that any above-mentioned scheme described. Since the shiftable electric drive axle has the above technical effects, the independent suspension vehicle with the shiftable electric drive axle should also have corresponding technical effects, which are not described in detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an arrangement structure of a shiftable electric drive axle according to an embodiment of the present invention.
In the context of figure 1 of the drawings,
the first driving wheel 1, the second driving wheel 2, the first motor 11, the output shaft 11a, the first multiple gear reduction mechanism 12, the first input gear 12a, the first intermediate gear 12b, the first output gear 12c, the first wheel reduction gear 13, the sun gear 13a, the planet carrier 13b, the ring gear 13c, the planetary gear train 13d, the first half shaft 14, the first clutch 15, the second motor 21, the output shaft 21a, the second multiple gear reduction mechanism 22, the second input gear 22a, the second intermediate gear 22b, the second output gear 22c, the second wheel reduction gear 23, the sun gear 23a, the planet carrier 23b, the ring gear 23c, the planetary gear train 23d, the second half shaft 24 and the third clutch 25.
Detailed Description
The core of the utility model is to provide an electric drive axle and independent suspension vehicle that can shift to solve the big whole car of drive mechanism occupation space of electric drive axle and arrange inconvenient and speed control scope and only confine the problem in motor output's control range.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the directions or positional relationships indicated as referring to the terms "upper", "lower", "front", "rear", "left" and "right" and the like are only for convenience of description and simplification of description, and do not indicate or imply that the position or element referred to must have a specific direction, be constituted in a specific direction and operate, and thus, should not be construed as limiting the present invention, if the directions or positional relationships indicated on the drawings are based on the directions or positional relationships shown in the drawings. Furthermore, the terms "first," "second," and the like, if referred to, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the embodiment of the present invention provides a shiftable electric drive axle, which is suitable for an independent suspension vehicle, and includes a first drive wheel 1 and a second drive wheel 2 symmetrically disposed on an independent suspension, wherein the first drive wheel 1 is independently driven by a first drive assembly, and the second drive wheel 2 is independently driven by a second drive assembly; the first driving assembly comprises a first motor 11, a first multiple gear speed reducing mechanism 12 and a first wheel reduction gear 13, and an output shaft 11a of the first motor 11 is coaxially and fixedly connected with an input gear of the first multiple gear speed reducing mechanism 12; an output gear of the first multiple gear reduction mechanism 12 is in transmission connection with a sun gear 13a of a first wheel reduction gear 13 through a first half shaft 14, a planet carrier 13b of the first wheel reduction gear 13 is connected with a first driving wheel 1, a gear ring 13c of the first wheel reduction gear 13 is in transmission connection with an axle housing through a first clutch 15, and a sun gear 13a of the first wheel reduction gear 13 is in transmission connection with a planet carrier 13b of the first wheel reduction gear 13 through a second clutch; the second clutch is disengaged when the first clutch 15 is engaged, and the second clutch is engaged when the first clutch 15 is disengaged; the second driving assembly comprises a second motor 21, a second multiple gear speed reducing mechanism 22 and a second wheel reduction gear 23, and an output shaft 21a of the second motor 21 is coaxially and fixedly connected with an input gear of the second multiple gear speed reducing mechanism 22; an output gear of the second multiple gear speed reducing mechanism 22 is in transmission connection with a sun gear 23a of a second wheel reduction gear 23 through a second half shaft 24, a planet carrier 23b of the second wheel reduction gear 23 is connected with the second driving wheel 2, a gear ring 23c of the second wheel reduction gear 23 is in transmission connection with an axle housing through a third clutch 25, and the sun gear 23a of the second wheel reduction gear 23 is in transmission connection with the planet carrier of the second wheel reduction gear through a fourth clutch; the fourth clutch is disengaged when the third clutch 25 is engaged, and engaged when the third clutch 25 is disengaged.
In the practical application process, the first driving wheel is independently driven by the first driving assembly, the second driving wheel is independently driven by the second driving assembly, the first driving assembly outputs power through the first motor, the second driving assembly outputs power through the second motor, namely, wheels on two sides are respectively driven by different motors, the electronic control can be adopted to realize differential speed, the differential speed transmission mode is different from the traditional differential mechanism structure, the structure is simplified, the vehicle bending control is more accurate and smooth, the power consumption in the mechanical transmission process is reduced, and the use efficiency of energy is improved; meanwhile, the first motor transmits power to the first half shaft through the first multi-gear speed reducing mechanism, and then the power is transmitted to the sun gear of the first wheel reduction gear through the first half shaft, and the first wheel reduction gear has two working modes, wherein one working mode is as follows: the first clutch is engaged, the gear ring of the first hub reduction gear is fixedly connected with the axle housing, the second clutch is disengaged, and the sun gear of the first hub reduction gear transmits power to the planet carrier of the first hub reduction gear through the planetary gear train of the first hub reduction gear, so that a low-gear mode of speed reduction is realized; the other working mode is as follows: first clutch separation, first wheel reduction's ring gear and axle housing disconnect-from connection, the second clutch joint, and first wheel reduction's sun gear is fixed with first wheel reduction's planet carrier, and first wheel reduction's drive ratio is 1: 1, realizing a high-grade mode; similarly, the second electric machine transmits power to the second half shaft through the second multiple gear reduction mechanism, and then the power is transmitted to the sun gear of the second hub reduction gear through the second half shaft, and the second hub reduction gear also has two working modes, one working mode is: the third clutch is engaged, the gear ring of the second hub reduction gear is fixedly connected with the axle housing, the fourth clutch is disengaged, and the sun gear of the second hub reduction gear transmits power to the planet carrier of the second hub reduction gear through the planetary gear train of the second hub reduction gear, so that a low gear mode of speed reduction is realized; the other working mode is as follows: the separation of third clutch, second wheel reduction gear's ring gear and axle housing separation and connection, the joint of fourth clutch, second wheel reduction gear's sun gear is fixed with second wheel reduction gear's planet carrier, and second wheel reduction gear's drive ratio is 1: 1, a high-grade mode is realized, and the multiple gear reduction mechanism is matched with a reduction transmission structure form of a hub reduction gear, so that the structure can be more flattened while a required transmission ratio is obtained, the occupied space of a transmission mechanism is greatly reduced, the mechanism arrangement of the whole vehicle is facilitated, and the trend of light weight is met; and the clutch is arranged on the wheel reduction gear to realize the switching of the working modes of two transmission ratios of the wheel reduction gear, and the vehicle obtains different rotating speed modes through the adjustment of the working modes, namely the adjustment of gear shifting, so that the vehicle is accurately controlled, the transmission efficiency and the energy utilization rate are favorably improved, the higher cruising mileage is realized under the condition of unchanged energy, the speed adjusting range of the electric drive axle is larger, and the condition that the speed adjusting range is only limited to the output power of the motor is avoided.
It should be noted that, as will be understood by those skilled in the art, the basic structure of the hub reduction gear generally includes a ring gear, a sun gear, a planetary gear train and a planet carrier, wherein the planetary gear train includes a plurality of planet gears, the planet gears are all meshed with the sun gear and the ring gear, and the planet gears are all rotatably connected with the planet carrier.
It should be noted that, in the foregoing first clutch, the second clutch, the third clutch, and the fourth clutch, a friction clutch may be specifically adopted, and an electromagnetic clutch may also be adopted.
In some specific embodiments, the first driving assembly and the second driving assembly are generally designed to be symmetrically arranged, and the symmetrical arrangement structure is more favorable for balancing the left and right counterweights of the whole vehicle, and it can be understood that, in the practical application process, the asymmetrical arrangement structure can be selected according to the arrangement requirement of the whole vehicle.
In a further embodiment, in order to facilitate the cooperative control of the first motor and the second motor, so as to make the control logic of the straight running and turning running operation of the vehicle simpler, generally speaking, the models of the first motor 11 and the second motor 21 are preferably designed to be the same, but are not limited to be the same, as long as the rotation speed control of the driving wheels after the two pass through the respective transmission mechanisms can be realized.
In some specific embodiments, the first multiple gear reduction mechanism 12 may be specifically a first triple gear reduction unit including a first input gear 12a, a first intermediate gear 12b, and a first output gear 12c, the first intermediate gear 12b meshing with the first input gear 12a and the first output gear 12c, respectively. Similarly, the second multiple gear reduction mechanism 22 may be specifically a second triple gear reducer, which includes a second input gear 22a, a second intermediate gear 22b and a second output gear 22c, and the second intermediate gear 22b is engaged with the second input gear 22a and the second output gear 22c, respectively. It should be understood that the foregoing structural form of the triple gear speed reducer is merely a preferred example of the embodiment of the present invention, and in the practical application process, the structural form of the double gear, or a multiple gear with more than three pairs, may also be selected according to practical requirements, and is not limited in more detail herein.
In some specific embodiments, in order to make the overall occupied space of the transmission mechanism and the motor smaller and more prone to the requirement of flat design, the first motor 11 may be designed to be located on the side of the first multiple gear reduction mechanism 12 close to the first wheel reduction gear 13; similarly, the second motor 21 may be designed to be located on the side of the second multiple gear reduction mechanism 22 close to the second wheel reduction gear 23. It is understood that the arrangement of the first motor and the second motor is merely an example of the embodiment of the present invention, and in the practical application process, the first motor and the second motor may be designed at other positions according to the arrangement requirement of the whole vehicle, which is not limited herein.
In some more specific embodiments, the planetary gear train 13d of the first wheel reduction gear 13 may specifically include a first planetary gear set and a second planetary gear set located on different planes, each of the first planetary gear set and the second planetary gear set includes a plurality of planetary gears, and the planetary gears are rotatably connected with the planetary carrier of the first wheel reduction gear 13 through rotating shafts; the planet gears on the first planet gear set and the planet gears on the second planet gear set are arranged in a staggered mode and are meshed with the sun gear 13a and the gear ring 13c of the first hub reduction gear 13; similarly, the planetary gear train 23d of the second hub reduction gear 23 may specifically include a third planetary gear set and a fourth planetary gear set located on different planes, where the third planetary gear set and the fourth planetary gear set each include a plurality of planetary gears, and the planetary gears are rotatably connected to the planetary carrier of the second hub reduction gear 23 through a rotating shaft; the planet gears on the third planet gear set and the planet gears on the fourth planet gear set are arranged in a staggered mode and are meshed with the sun gear 23a and the gear ring 23c of the second hub reduction gear 23.
Through setting up the planet wheel on different planes to stagger the installation, because the planet wheel is in different planes, mountable planet wheel quantity increases between sun gear and the ring gear, makes the atress more balanced. The planetary gear train is divided into two planetary gear sets which are positioned on different planes, under the condition that the material consumption of the planetary gears, the sun gear and the gear ring is not changed, the number of meshing teeth among the planetary gears, the gear ring and the sun gear is increased, the stress is uniform, the extreme pressure generated among the gear teeth is reduced, and the service life of each part is prolonged.
Additionally, the utility model also provides an independent suspension vehicle, including electric drive axle, this electric drive axle is the electric drive axle that can shift gears that any above-mentioned scheme described. Since the shiftable electric drive axle has the above technical effects, the independent suspension vehicle with the shiftable electric drive axle should also have corresponding technical effects, which are not described in detail herein.
It is right above the utility model provides a can shift electric transaxle and independent suspension vehicle have carried out the detailed introduction. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A shiftable electric drive axle, suitable for independent suspension vehicles, comprising a first (1) and a second (2) drive wheel symmetrically arranged on an independent suspension, characterized in that the first drive wheel (1) is independently driven by a first drive assembly and the second drive wheel (2) is independently driven by a second drive assembly;
the first driving assembly comprises a first motor (11), a first multiple gear reduction mechanism (12) and a first wheel reduction gear (13), and an output shaft (11a) of the first motor (11) is coaxially and fixedly connected with an input gear of the first multiple gear reduction mechanism (12); an output gear of the first multiple gear reduction mechanism (12) is in transmission connection with a sun gear (13a) of the first wheel reduction gear (13) through a first half shaft (14), a planet carrier (13b) of the first wheel reduction gear (13) is connected with the first driving wheel (1), a gear ring (13c) of the first wheel reduction gear (13) is in transmission connection with an axle housing through a first clutch (15), and the sun gear (13a) of the first wheel reduction gear (13) is in transmission connection with the planet carrier (13b) of the first wheel reduction gear (13) through a second clutch; -the second clutch is disengaged when the first clutch (15) is engaged, and the second clutch is engaged when the first clutch (15) is disengaged;
the second driving assembly comprises a second motor (21), a second multiple gear reduction mechanism (22) and a second wheel reduction gear (23), and an output shaft (21a) of the second motor (21) is coaxially and fixedly connected with an input gear of the second multiple gear reduction mechanism (22); an output gear of the second multiple gear speed reducing mechanism (22) is in transmission connection with a sun gear (23a) of the second wheel reduction gear (23) through a second half shaft (24), a planet carrier (23b) of the second wheel reduction gear (23) is connected with the second driving wheel (2), a gear ring (23c) of the second wheel reduction gear (23) is in transmission connection with the axle housing through a third clutch (25), and the sun gear (23a) of the second wheel reduction gear (23) is in transmission connection with the planet carrier of the second wheel reduction gear through a fourth clutch; the fourth clutch is disengaged when the third clutch (25) is engaged and engaged when the third clutch (25) is disengaged.
2. Shiftable electric drive axle according to claim 1, wherein the first multiple gear reduction mechanism (12) is a first triple gear reduction comprising a first input gear (12a), a first intermediate gear (12b) and a first output gear (12c), the first intermediate gear (12b) being in mesh with the first input gear (12a) and the first output gear (12c), respectively.
3. Shiftable electric drive axle according to claim 1, wherein the second multiple gear reduction mechanism (22) is a second triple gear reduction comprising a second input gear (22a), a second intermediate gear (22b) and a second output gear (22c), the second intermediate gear (22b) being in mesh with the second input gear (22a) and the second output gear (22c), respectively.
4. Shiftable electric drive axle according to claim 1, characterized in that the first electric machine (11) is located on the side of the first multiple gear reduction (12) close to the first wheel reduction (13).
5. Shiftable electric drive axle according to claim 1, characterized in that the second electric machine (21) is located on the side of the second multiple gear reduction (22) close to the second wheel reduction (23).
6. The shiftable electric drive axle of claim 1, wherein the first drive assembly is symmetrically arranged with respect to the second drive assembly.
7. Shiftable electric drive axle according to claim 1, characterized in that the first electric motor (11) and the second electric motor (21) are of the same type.
8. Shiftable electric drive axle according to claim 1, wherein the planetary gear train (13d) of the first wheel reduction gear (13) comprises a first planetary gear set and a second planetary gear set in different planes, each of the first planetary gear set and the second planetary gear set comprising a number of planet wheels, which are rotatably connected with the planet carrier of the first wheel reduction gear (13) by means of a rotating shaft; the planet gears on the first planet gear set and the planet gears on the second planet gear set are arranged in a staggered mode and are meshed with the sun gear (13a) and the gear ring (13c) of the first hub reduction gear (13).
9. The shiftable electric drive axle according to claim 1, wherein the planetary gear train (23d) of the second wheel reduction (23) comprises a third planetary gear set and a fourth planetary gear set which are located in different planes, each of the third planetary gear set and the fourth planetary gear set comprising a plurality of planetary gears, and the planetary gears are rotatably connected with the planetary gear carrier of the second wheel reduction (23) through rotating shafts; the planet gears on the third planet gear set and the planet gears on the fourth planet gear set are arranged in a staggered mode and are meshed with the sun gear (23a) and the gear ring (23c) of the second hub reduction gear (23).
10. An independently suspended vehicle comprising an electric drive axle, characterized in that the electric drive axle is a shiftable electric drive axle according to any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023202196.2U CN214138234U (en) | 2020-12-26 | 2020-12-26 | Shiftable electric drive axle and independent suspension vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023202196.2U CN214138234U (en) | 2020-12-26 | 2020-12-26 | Shiftable electric drive axle and independent suspension vehicle |
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| CN214138234U true CN214138234U (en) | 2021-09-07 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292785A (en) * | 2023-04-26 | 2023-06-23 | 一汽解放汽车有限公司 | Two-speed wheel reducer assembly and drive axle assembly |
| CN116619951A (en) * | 2023-06-20 | 2023-08-22 | 一汽解放汽车有限公司 | Coaxial dual-motor electric drive axle assembly with wheel-side reducer |
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2020
- 2020-12-26 CN CN202023202196.2U patent/CN214138234U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116292785A (en) * | 2023-04-26 | 2023-06-23 | 一汽解放汽车有限公司 | Two-speed wheel reducer assembly and drive axle assembly |
| CN116619951A (en) * | 2023-06-20 | 2023-08-22 | 一汽解放汽车有限公司 | Coaxial dual-motor electric drive axle assembly with wheel-side reducer |
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