CN113733882A - Dual-motor mechanical coupling electric drive bridge and vehicle - Google Patents

Dual-motor mechanical coupling electric drive bridge and vehicle Download PDF

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Publication number
CN113733882A
CN113733882A CN202111208019.1A CN202111208019A CN113733882A CN 113733882 A CN113733882 A CN 113733882A CN 202111208019 A CN202111208019 A CN 202111208019A CN 113733882 A CN113733882 A CN 113733882A
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CN
China
Prior art keywords
gear
planetary reducer
motor
drive
ring
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Pending
Application number
CN202111208019.1A
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Chinese (zh)
Inventor
胡姗姗
吴瑞丽
徐凌志
徐伟
余荣禄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Dana Axle Co Ltd
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Dongfeng Dana Axle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongfeng Dana Axle Co Ltd filed Critical Dongfeng Dana Axle Co Ltd
Priority to CN202111208019.1A priority Critical patent/CN113733882A/en
Publication of CN113733882A publication Critical patent/CN113733882A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The invention discloses a double-motor mechanical coupling electric drive axle and a vehicle, and relates to the technical field of axles. The double-motor mechanical coupling electric drive bridge comprises a first motor, a second motor, a first planetary reducer, a second planetary reducer and a reverse transmission mechanism. The first motor is connected with a first sun gear of the first planetary reducer and outputs torque through a first planet carrier of the first planetary reducer. The second planetary reducer and the first planetary reducer are coaxially arranged, and the second motor is connected with a second sun gear of the second planetary reducer and outputs torque through the second planetary reducer. And a first gear ring of the first planetary reducer is in reverse transmission connection with the second planetary reducer through a reverse transmission mechanism. The double-motor mechanical coupling electric drive bridge and the vehicle have the characteristics of lower cost and higher reliability.

Description

Dual-motor mechanical coupling electric drive bridge and vehicle
Technical Field
The invention relates to the technical field of axles, in particular to a double-motor mechanical coupling electric drive axle and a vehicle.
Background
The axle is used as a key mechanism for bearing the load of the automobile and maintaining the normal running of the automobile on a road, the power stable output is very important, the power output of the motor is generally controlled by adopting an electronic control mode in the conventional multi-motor electric drive axle, the cost is high, and the reliability is poor.
In view of the above, it is important to develop a dual-electromechanical-coupling electrically driven bridge and a vehicle that can solve the above technical problems.
Disclosure of Invention
The invention aims to provide a double-motor mechanical coupling electric drive axle and a vehicle, which have the characteristics of lower cost and higher reliability.
The invention provides a technical scheme that:
in a first aspect, an embodiment of the present invention provides a dual-motor mechanical coupling electric drive bridge, which includes a first motor, a second motor, a first planetary reducer, a second planetary reducer, and a reverse transmission mechanism;
the first motor is connected with a first sun gear of the first planetary reducer and outputs torque through a first planet carrier of the first planetary reducer;
the second planetary reducer and the first planetary reducer are coaxially arranged, and the second motor is connected with a second sun gear of the second planetary reducer and outputs torque through the second planetary reducer;
and the first gear ring of the first planetary speed reducer is in reverse transmission connection with the second planetary speed reducer through the reverse transmission mechanism.
With reference to the first aspect, in another implementation manner of the first aspect, the second electric machine outputs torque through a second carrier of the second planetary reducer;
and the first gear ring is in reverse transmission connection with a second gear ring of the second planetary speed reducer through the reverse transmission mechanism.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the reverse transmission mechanism includes a first transmission gear and a second transmission gear;
one end of the first transmission gear is connected with the first gear ring, the other end of the first transmission gear is externally meshed with one end of the second transmission gear, and one end, far away from the first transmission gear, of the second transmission gear is connected with the second gear ring, so that the first gear ring and the second gear ring are connected in a reverse transmission mode.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, one end of the first transmission gear, which is connected with the first gear ring, is externally engaged with the first gear ring; one end of the second transmission gear connected with the second gear ring is externally meshed with the second gear ring.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the reverse transmission mechanism includes a plurality of the first transmission gears and a plurality of the second transmission gears;
it is a plurality of first drive gear is with a plurality of first drive gear is outer meshing one by one, and is a plurality of first drive gear follows the periphery of first ring gear sets up.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, a plurality of the first transmission gears are uniformly distributed along the outer periphery of the first gear ring; the plurality of second transmission gears are uniformly distributed along the periphery of the second gear ring.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the dual-motor mechanically-coupled electrically-driven bridge further comprises a driving shaft, and the driving shaft comprises a first half shaft and a second half shaft;
the first half shaft is connected with the first planet carrier so as to output the torque input by the first motor through the first half shaft; the second half shaft is in transmission connection with the second planet carrier so as to output torque input by the second motor through the second half shaft.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first planetary reducer and the second planetary reducer are disposed at an interval, and the first motor and the second motor are disposed between the first planetary reducer and the second planetary reducer.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first motor, the second motor, and the second planetary reducer are coaxially disposed.
In a second aspect, the embodiment of the present invention further provides a vehicle, which includes the dual-motor mechanically-coupled electrically-driven bridge. The double-motor mechanical coupling electric drive bridge comprises a first motor, a second motor, a first planetary reducer, a second planetary reducer and a reverse transmission mechanism; the first motor is connected with a first sun gear of the first planetary reducer and outputs torque through a first planet carrier of the first planetary reducer; the second planetary reducer and the first planetary reducer are coaxially arranged, and the second motor is connected with a second sun gear of the second planetary reducer and outputs torque through the second planetary reducer; and the first gear ring of the first planetary speed reducer is in reverse transmission connection with the second planetary speed reducer through the reverse transmission mechanism.
Compared with the prior art, the double-motor mechanical coupling electric drive bridge provided by the embodiment of the invention has the beneficial effects that compared with the prior art, the double-motor mechanical coupling electric drive bridge comprises the following components:
the double-motor mechanical coupling electric drive bridge comprises a first motor, a second motor, a first planetary reducer, a second planetary reducer and a reverse transmission mechanism, wherein the first motor is connected with a first sun gear of the first planetary reducer, and the first motor outputs torque through a first planet carrier of the first planetary reducer. The second planetary reducer and the first planetary reducer are coaxially arranged, the second motor is connected with a second sun gear of the second planetary reducer, and the second motor outputs torque through the second planetary reducer. And the first gear ring of the first planetary reducer is in reverse transmission connection with the second planetary reducer through the reverse transmission mechanism, so that when the torque output by the first motor is larger than the torque output by the second motor, the first motor drives the first gear ring to rotate reversely.
The beneficial effects of the vehicle provided by the embodiment of the invention compared with the prior art are the same as the beneficial effects of the double-motor mechanical coupling electric drive bridge compared with the prior art, and are not described again.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of a dual-electromechanical mechanically coupled electrically driven bridge according to an embodiment of the present invention.
Icon: 40-a wheel; 10-double-motor mechanical coupling electric drive bridge; 11-a first electric machine; 12-a second electric machine; 13-a first planetary reducer; 131-a first sun gear; 132-a first planet; 133-a first planet carrier; 134-a first ring gear; 14-a second planetary reducer; 141-a second sun gear; 142-a second planet; 143-a second planet carrier; 144-a second ring gear; 15-a reverse drive mechanism; 151-first transmission gear; 152-a second drive gear; 16-a drive shaft; 161-a first half shaft; 162-second half shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like, refer to an orientation or positional relationship as shown in the drawings, or as would be conventionally found in use of the inventive product, or as would be conventionally understood by one skilled in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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 process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a dual electromechanical mechanical coupling electric drive bridge 10 according to an embodiment of the present invention.
The embodiment of the invention provides a dual-motor mechanical coupling electric-driven bridge 10, and the dual-motor mechanical coupling electric-driven bridge 10 has the characteristics of low cost and high reliability. The dual-motor mechanical coupling electric drive bridge 10 can be applied to vehicles such as automobiles and trucks. When the dual electromechanical coupling electric drive axle 10 is applied to a vehicle, the dual electromechanical coupling electric drive axle 10 is connected to a wheel 40 of the vehicle and is used for driving the wheel 40 to rotate. Because the vehicle adopts the double-motor mechanical coupling electric drive bridge 10 provided by the embodiment of the invention, the vehicle also has the characteristics of lower cost and higher reliability.
The structural composition, the operation principle and the advantageous effects of the dual-electromechanical mechanically coupled electrically driven bridge 10 according to the embodiment of the present invention will be described in detail below.
With reference to fig. 1, the dual-motor-mechanical-coupling electric drive bridge 10 includes a first motor 11, a second motor 12, a first planetary reducer 13, a second planetary reducer 14 and a reverse transmission mechanism 15, wherein the first motor 11 is connected to the first sun gear 131 of the first planetary reducer 13, and the first motor 11 outputs torque through the first planet carrier 133 of the first planetary reducer 13. The second planetary gear set 14 is disposed coaxially with the first planetary gear set 13, the second motor 12 is connected to the second sun gear 141 of the second planetary gear set 14, and the second motor 12 outputs torque through the second planetary gear set 14. And the first ring gear 134 of the first planetary reducer 13 is in reverse transmission connection with the second planetary reducer 14 through the reverse transmission mechanism 15, so that when the torque output by the first motor 11 is greater than the torque output by the second motor 12, the first motor 11 drives the first ring gear 134 to rotate reversely, and because the first ring gear 134 is in reverse transmission connection with the second planetary reducer 14 through the reverse transmission mechanism 15, part of the power of the first motor 11 is transmitted to the second planetary reducer 14 through the first ring gear 134 and the reverse transmission mechanism 15 which rotate reversely, so that the purpose of power coupling is achieved.
Further, the second electric machine 12 can output torque through the second carrier 143 of the second planetary gear set 14, and the first ring gear 134 is in reverse drive connection with the second ring gear 144 of the second planetary gear set 14 through the reverse gear mechanism 15. In other words, the first ring gear 134 can be reversed relative to the second ring gear 144 due to the provision of the reverse drive mechanism 15.
In this way, when the torque output by the first electric machine 11 is equal to the torque output by the second electric machine 12, since the first ring gear 134 is in reverse drive connection with the second planetary reducer 14 through the reverse drive mechanism 15, both the first ring gear 134 and the second ring gear 144 are kept stationary, which does not affect the torque output by the first electric machine 11 through the first planetary reducer 13 or the torque output by the second electric machine 12 through the second planetary reducer 14.
When the torque output by the first motor 11 is greater than the torque output by the second motor 12, the first motor 11 drives the first gear ring 134 to rotate reversely, and since the first gear ring 134 is in reverse transmission connection with the second gear ring 144 through the reverse transmission mechanism 15, the first gear ring 134 drives the second gear ring 144 to rotate normally through the reverse transmission mechanism 15, so that part of the power of the first motor 11 is transmitted to the second planetary reducer 14; when the torque output by the first motor 11 is smaller than the torque output by the second motor 12, the second motor 12 drives the second gear ring 144 to rotate reversely, and the second gear ring 144 is connected with the first gear ring 134 through the reverse transmission mechanism 15 in a reverse transmission manner, so that the second gear ring 144 drives the first gear ring 134 to rotate normally through the reverse transmission mechanism 15, and part of the power of the second motor 12 is transmitted to the first planetary reducer 13, thereby achieving the purpose of power coupling.
Further, the reverse gear mechanism 15 may include a first transmission gear 151 and a second transmission gear 152, wherein one end of the first transmission gear 151 is connected to the first gear ring 134, the other end is externally engaged with one end of the second transmission gear 152, and one end of the second transmission gear 152 far from the first transmission gear 151 is connected to the second gear ring 144, so that the first gear ring 134 and the second gear ring 144 are reversely connected through the externally engaged first transmission gear 151 and second transmission gear 152. The structure is simple and the cost is low.
Furthermore, the connection mode of the first transmission gear 151 and the first gear ring 134 is also external engagement, and similarly, the connection mode of the second transmission gear 152 and the second gear ring 144 is also external engagement, and the structure is simple and the cost is low.
It should be noted that, in the present embodiment, only cylindrical gears are disposed at both ends of each of the first transmission gear 151 and the second transmission gear 152, and the structure thereof is manufactured.
Further, the reverse transmission mechanism 15 may include a plurality of first transmission gears 151 and a plurality of second transmission gears 152, wherein the plurality of first transmission gears 151 are externally engaged with the plurality of first transmission gears 151 one by one, the plurality of first transmission gears 151 are disposed along the periphery of the first gear ring 134, and the corresponding plurality of second transmission gears 152 are also disposed along the periphery of the second gear ring 144, so as to improve the stability of the transmission connection of the reverse transmission mechanism 15.
It should be noted that, a plurality of first transmission gears 151 are evenly distributed along the periphery of first ring gear 134 to the radial force that first ring gear 134 receives is offset through the first transmission gears 151 that evenly set up, plays the effect of the even load. Similarly, a plurality of second transmission gears 152 may be uniformly distributed along the outer periphery of the second ring gear 144. So that the radial force applied to the second ring gear 144 is offset to achieve the effect of load balancing.
With continued reference to fig. 1, the two-motor mechanically-coupled electrically-driven axle 10 may further include a drive shaft 16, the drive shaft 16 including a first axle shaft 161 and a second axle shaft 162, wherein the first axle shaft 161 is connected to the first carrier 133 to output the torque of the first motor 11 to the first planetary reducer 13 via the first axle shaft 161. And the second half shaft 162 is drivingly connected with the second carrier 143 to output the torque of the second electric machine 12 input to the second planetary gear reducer 14 through the second half shaft 162.
In this way, when the rotation speed of the first half shaft 161 is lower than the rotation speed of the second half shaft 162, the torque input by the first electric machine 11 is output through the first sun gear 131, the first planetary gear 132 of the first planetary gear reducer 13, the first ring gear 134, the first transmission gear 151, the second transmission gear 152, the second ring gear 144, the second planetary gear 142 of the second planetary gear reducer 14, the second carrier 143, and the second half shaft 162; when the rotation speed of the first axle 161 is higher than that of the second axle 162, the torque input by the second electric machine 12 is output through the second sun gear 141, the second planetary gear 142, the second ring gear 144, the second transmission gear 152, the first transmission gear 151, the first ring gear 134, the first planetary gear 132, the first carrier 133 and the first axle 161, so as to achieve the purpose of differential speed.
In the present embodiment, a wheel reduction gear may be further provided on the wheel 40, and the first half shaft 161 and the second half shaft 162 are connected to the wheel 40 through the corresponding wheel reduction gears, respectively.
Further, the first planetary reducer 13 and the second planetary reducer 14 may be disposed at intervals, and the first motor 11 and the second motor 12 are disposed between the first planetary reducer 13 and the second planetary reducer 14, so as to improve the structural compactness of the dual electromechanical coupling electric drive bridge 10.
Furthermore, the first motor 11, the second motor 12 and the second planetary reducer 14 may be coaxially disposed, in other words, the first planetary reducer 13, the first motor 11, the second motor 12 and the second planetary reducer 14 are sequentially disposed and coaxially disposed, so as to further improve the structural compactness of the dual-motor mechanical coupling electric drive bridge 10.
In addition, the first motor 11 and the second motor 12 may be spaced apart to improve the heat dissipation effect of the first motor 11 and the second motor 12.
The working principle of the double-motor mechanical coupling electric drive bridge 10 provided by the embodiment of the invention is as follows:
the dual-motor mechanically-coupled electric drive bridge 10 includes a first motor 11, a second motor 12, a first planetary reducer 13, a second planetary reducer 14, and a reverse transmission mechanism 15, wherein the first motor 11 is connected to a first sun gear 131 of the first planetary reducer 13, and the first motor 11 outputs a torque through a first carrier 133 of the first planetary reducer 13. The second planetary gear set 14 is disposed coaxially with the first planetary gear set 13, the second motor 12 is connected to the second sun gear 141 of the second planetary gear set 14, and the second motor 12 outputs torque through the second planetary gear set 14. And the first ring gear 134 of the first planetary reducer 13 is in reverse transmission connection with the second planetary reducer 14 through the reverse transmission mechanism 15, so that when the torque output by the first motor 11 is greater than the torque output by the second motor 12, the first motor 11 drives the first ring gear 134 to rotate reversely, and because the first ring gear 134 is in reverse transmission connection with the second planetary reducer 14 through the reverse transmission mechanism 15, part of the power of the first motor 11 is transmitted to the second planetary reducer 14 through the first ring gear 134 and the reverse transmission mechanism 15 which rotate reversely, so that the purpose of power coupling is achieved.
In summary, the embodiment of the present invention provides a dual-motor mechanically-coupled electrically-driven bridge 10, which has the characteristics of low cost and high reliability.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that the features in the above embodiments may be combined with each other and the present invention may be variously modified and changed without conflict. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. A double-motor mechanical coupling electric drive bridge is characterized by comprising a first motor (11), a second motor (12), a first planetary reducer (13), a second planetary reducer (14) and a reverse transmission mechanism (15);
the first electric machine (11) is connected with a first sun gear (131) of the first planetary reducer (13) and outputs torque through a first planet carrier (133) of the first planetary reducer (13);
the second planetary reducer (14) is coaxially arranged with the first planetary reducer (13), and the second motor (12) is connected with a second sun gear (141) of the second planetary reducer (14) and outputs torque through the second planetary reducer (14);
the first gear ring (134) of the first planetary reducer (13) is in reverse transmission connection with the second planetary reducer (14) through the reverse transmission mechanism (15).
2. The dual-electromechanical, mechanically coupled, electric drive axle according to claim 1, characterized in that the second electric machine (12) outputs a torque through a second planet carrier (143) of the second planetary gear reducer (14);
the first gear ring (134) is in reverse drive connection with a second gear ring (144) of the second planetary reducer (14) through the reverse drive mechanism (15).
3. The dual electromechanical mechanically coupled electrically driven bridge according to claim 2, wherein the counter drive mechanism (15) comprises a first drive gear (151) and a second drive gear (152);
one end of the first transmission gear (151) is connected with the first gear ring (134), the other end of the first transmission gear is externally meshed with one end of the second transmission gear (152), and one end, far away from the first transmission gear (151), of the second transmission gear (152) is connected with the second gear ring (144), so that the first gear ring (134) and the second gear ring (144) are connected in a reverse transmission mode.
4. The dual electromechanical mechanically coupled electrical drive bridge according to claim 3, characterized in that the connected end of the first transmission gear (151) and the first ring gear (134) is externally meshed with the first ring gear (134); one end of the second transmission gear (152) connected with the second gear ring (144) is externally meshed with the second gear ring (144).
5. The dual electromechanical mechanically coupled electrically driven bridge according to claim 4, wherein said counter drive mechanism (15) comprises a plurality of said first drive gears (151) and a plurality of said second drive gears (152);
a plurality of first drive gear (151) and a plurality of first drive gear (151) are outer meshing one by one, and are a plurality of first drive gear (151) follow the periphery setting of first ring gear (134).
6. The dual electromechanical mechanically coupled electrically driven bridge according to claim 5, wherein a plurality of said first transmission gears (151) are evenly distributed along the periphery of said first ring gear (134); the second transmission gears (152) are uniformly distributed along the periphery of the second gear ring (144).
7. The dual electromechanical mechanically coupled electrically driven bridge according to any of the claims 2 to 6, further comprising a drive shaft (16), said drive shaft (16) comprising a first half shaft (161) and a second half shaft (162);
the first half shaft (161) is connected with the first planet carrier (133) to output the torque input by the first motor (11) through the first half shaft (161); the second half shaft (162) is in transmission connection with the second planet carrier (143) so as to output the torque input by the second motor (12) through the second half shaft (162).
8. Double-motor mechanically-coupled electrically-driven bridge according to any one of claims 2 to 6, characterized in that said first planetary reducer (13) and said second planetary reducer (14) are arranged at intervals, said first electric motor (11) and said second electric motor (12) being arranged between said first planetary reducer (13) and said second planetary reducer (14).
9. Double electromechanical mechanically coupled electric drive bridge according to claim 8, characterized in that the first electric machine (11), the second electric machine (12) and the second planetary reduction gear (14) are arranged coaxially.
10. A vehicle comprising a two-motor mechanically coupled electric drive axle according to any one of claims 1 to 9.
CN202111208019.1A 2021-10-18 2021-10-18 Dual-motor mechanical coupling electric drive bridge and vehicle Pending CN113733882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111208019.1A CN113733882A (en) 2021-10-18 2021-10-18 Dual-motor mechanical coupling electric drive bridge and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111208019.1A CN113733882A (en) 2021-10-18 2021-10-18 Dual-motor mechanical coupling electric drive bridge and vehicle

Publications (1)

Publication Number Publication Date
CN113733882A true CN113733882A (en) 2021-12-03

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CN202111208019.1A Pending CN113733882A (en) 2021-10-18 2021-10-18 Dual-motor mechanical coupling electric drive bridge and vehicle

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180298994A1 (en) * 2015-12-25 2018-10-18 Byd Company Limited Power-driven system and vehcile having the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180298994A1 (en) * 2015-12-25 2018-10-18 Byd Company Limited Power-driven system and vehcile having the same

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Application publication date: 20211203