CN215921859U - Electric drive axle and vehicle - Google Patents
Electric drive axle and vehicle Download PDFInfo
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- CN215921859U CN215921859U CN202122505363.9U CN202122505363U CN215921859U CN 215921859 U CN215921859 U CN 215921859U CN 202122505363 U CN202122505363 U CN 202122505363U CN 215921859 U CN215921859 U CN 215921859U
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Abstract
The utility model discloses an electric drive axle and a vehicle, and relates to the technical field of axles. The electric drive bridge comprises a first motor, a first planetary reducer, a second motor, 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 motor is connected with a second sun gear of the second planetary reducer and outputs torque through a second planet carrier of the second planetary reducer. The first gear ring of the first planetary reducer is arranged in parallel with the second gear ring of the second planetary reducer. The reverse transmission mechanism comprises a first transmission piece and a second transmission piece, one end of the first transmission piece is in transmission connection with the first gear ring, the other end of the first transmission piece is externally meshed with one end of the second transmission piece, and the other end of the second transmission piece is in transmission connection with the second gear ring so as to be in reverse transmission connection with the first gear ring and the second gear ring. The electric drive axle and the vehicle have the characteristics of lower cost and higher reliability.
Description
Technical Field
The utility model relates to the technical field of axles, in particular to an 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 an electric drive axle and a vehicle capable of solving the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electric drive axle and a vehicle, which have the characteristics of low cost and high reliability.
The utility model provides a technical scheme that:
in a first aspect, an embodiment of the present invention provides an electric drive bridge, which includes a first motor, a first planetary reducer, a second motor, 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 motor is connected with a second sun gear of the second planetary reducer and outputs torque through a second planet carrier of the second planetary reducer;
the first gear ring of the first planetary reducer and the second gear ring of the second planetary reducer are arranged in parallel; the reverse transmission mechanism comprises a first transmission piece and a second transmission piece, one end of the first transmission piece is in transmission connection with the first gear ring, the other end of the first transmission piece is externally meshed with one end of the second transmission piece, and the other end of the second transmission piece is in transmission connection with the second gear ring so as to be in reverse transmission connection with the first gear ring and the second gear ring.
With reference to the first aspect, in another implementation manner of the first aspect, the first transmission part and the second transmission part are both cylindrical gears, one end of the first transmission part is externally engaged with the first gear ring, the other end of the first transmission part is externally engaged with one end of the second transmission part, and the other end of the second transmission part is externally engaged with the second gear ring.
With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the reverse transmission mechanism includes a plurality of the first transmission members and a plurality of the second transmission members, the plurality of the first transmission members are in one-to-one transmission connection with the plurality of the second transmission members, and the first transmission members are distributed along the periphery of the first 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 plurality of first transmission pieces are uniformly distributed along the outer periphery of the first ring gear.
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 further includes at least one first stabilizing gear, and the first stabilizing gear and the first transmission member are uniformly distributed along the outer periphery of the first 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 further includes at least one second stabilizing gear, and the second stabilizing gear and the second transmission member are uniformly distributed along the outer periphery of the second ring gear.
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 transmission piece includes a first transmission gear, a first transmission rod, and a third transmission gear, which are connected in sequence; the second transmission piece comprises a second transmission gear, a second transmission rod and a fourth transmission gear which are connected in sequence;
the first transmission gear is externally meshed with the first gear ring, the third transmission gear is externally meshed with the second transmission gear, and the third transmission gear is externally meshed with the second gear ring.
In a second aspect, the embodiment of the utility model further provides a vehicle, which comprises the electric drive axle. The electric drive bridge comprises a first motor, a first planetary reducer, a second motor, 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 motor is connected with a second sun gear of the second planetary reducer and outputs torque through a second planet carrier of the second planetary reducer; the first gear ring of the first planetary reducer and the second gear ring of the second planetary reducer are arranged in parallel; the reverse transmission mechanism comprises a first transmission piece and a second transmission piece, one end of the first transmission piece is in transmission connection with the first gear ring, the other end of the first transmission piece is externally meshed with one end of the second transmission piece, and the other end of the second transmission piece is in transmission connection with the second gear ring so as to be in reverse transmission connection with the first gear ring and the second gear ring.
Compared with the prior art, the electric drive bridge provided by the embodiment of the utility model has the beneficial effects that:
the electric drive bridge comprises a first motor, a first planetary reducer, a second motor, 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 torque is output through a first planet carrier of the first planetary reducer. The second motor is connected with a second sun gear of the second planetary reducer and outputs torque through a second planet carrier of the second planetary reducer. And the first ring gear of the first planetary reducer is arranged in parallel with the second ring gear of the second planetary reducer. The reverse transmission mechanism comprises a first transmission piece and a second transmission piece, wherein one end of the first transmission piece is in transmission connection with the first gear ring, the other end of the first transmission piece is externally meshed with one end of the second transmission piece, the other end of the second transmission piece is in transmission connection with the second gear ring, the first gear ring and the second gear ring are connected in a reverse drive manner by the first transmission element and the second transmission element which are engaged with each other, so that, when the torque output by the first motor is different from that of the second motor, part of the power of the first motor can be transmitted to the second planetary reducer through the first gear ring, the first transmission piece, the second transmission piece and the second gear ring, part of the power of the second motor can be transmitted to the first planetary reducer through the second gear ring, the second transmission piece, the first transmission piece and the first gear ring, therefore, power coupling is realized, a mechanical mechanism is adopted to realize power coupling, and the power coupling device is low in cost and high in reliability.
The beneficial effects of the vehicle provided by the embodiment of the utility model relative to the prior art are the same as the beneficial effects of the electric drive bridge relative to the prior art, and are not described in detail herein.
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 utility model 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 an electric drive bridge according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a reverse driving mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a reverse driving mechanism provided in an embodiment of the present invention from another view angle.
Icon: 10-an electrically driven 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 carrier; 133-a first ring gear; 14-a second planetary reducer; 141-a second sun gear; 142-a second planet carrier; 143-a second ring gear; 15-a reverse drive mechanism; 151-first transmission member; 152-a second transmission member; 16-a differential; 17-a transmission 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 products of the present invention, or as would be conventionally understood by one of ordinary skill in the art, and are used merely to facilitate the description and simplify the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, configuration, and operation in a particular orientation, and therefore should not 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 utility model refers to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electric drive bridge 10 according to an embodiment of the present invention.
The embodiment of the utility model provides an electric drive bridge 10, and the electric drive bridge 10 has the characteristics of low cost and high reliability. The electric drive axle 10 can be applied to a vehicle such as a truck or an automobile. When the electric drive axle 10 is applied to a vehicle, the electric drive axle 10 is connected to wheels of the vehicle and is used for driving the wheels to rotate, thereby maintaining the vehicle running. The vehicle is also characterized by lower cost and higher reliability due to the adoption of the electric drive axle 10 provided by the embodiment of the utility model.
The structural composition, the operation principle and the advantageous effects of the electric drive bridge 10 provided by the embodiment of the present invention will be described in detail below.
With continuing reference to fig. 1, and with reference to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the reverse transmission mechanism 15 according to an embodiment of the present invention at a viewing angle. Fig. 3 is a schematic structural diagram of the reverse driving mechanism 15 provided in the embodiment of the present invention from another view angle.
The electric drive axle 10 comprises a first electric machine 11, a first planetary gear set 13, a second electric machine 12, a second planetary gear set 14 and a reversing gear 15, wherein the first electric machine 11 is connected to a first sun gear 131 of the first planetary gear set 13 and outputs a torque via a first planet carrier 132 of 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 outputs torque through the second carrier 142 of the second planetary gear set 14.
And the first ring gear 133 of the first planetary reducer 13 is disposed in parallel with the second ring gear 143 of the second planetary reducer 14. The reverse transmission mechanism 15 includes a first transmission member 151 and a second transmission member 152, wherein one end of the first transmission member 151 is in transmission connection with the first gear ring 133, the other end of the first transmission member 151 is in external engagement with one end of the second transmission member 152, and the other end of the second transmission member 152 is in transmission connection with the second gear ring 143, so as to reversely transmit the first gear ring 133 and the second gear ring 143 through the first transmission member 151 and the second transmission member 152 which are in external engagement, so that when the torques output by the first motor 11 and the second motor 12 are different, part of the power of the first motor 11 can be transmitted to the second planetary reducer 14 through the first gear ring 133, the first transmission member 151, the second transmission member 152 and the second gear ring 143, and part of the power of the second motor 12 can be transmitted to the first planetary reducer 13 through the second gear ring 143, the second transmission member 152, the first transmission member 151 and the first gear ring 133, thereby realizing power coupling, and a mechanical mechanism is adopted to realize power coupling, so that the cost is lower and the reliability is higher.
When the electric drive bridge 10 works and the torque output by the first motor 11 is different from the torque output by the second motor 12, if 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 133 to rotate reversely, and the first gear ring 133 is in reverse transmission connection with the second gear ring 143 through the first transmission member 151 and the second transmission member 152, so as to drive the first gear ring 133 to rotate forwardly, thereby transmitting part of the power on the first motor 11 to the second planetary reducer 14; if 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 143 to rotate reversely, and the second gear ring 143 is in reverse transmission connection with the first gear ring 133 through the second transmission member 152 and the first transmission member 151, so as to drive the first gear ring 133 to rotate forwardly, thereby transmitting part of the power on the second motor 12 to the first planetary reducer 13; when the torque output by the first electric machine 11 and the torque output by the second electric machine 12 are equal, since the first ring gear 133 is in reverse transmission connection with the second ring gear 143 through the first transmission piece 151 and the second transmission piece 152, the first ring gear 133 and the second ring gear 143 can be kept stationary, and the torque output by the first electric machine 11 and the torque output by the second electric machine 12 through the first planetary reducer 13 and the second planetary reducer 14 are not affected.
It should be noted that, in the present embodiment, the electric drive axle 10 further includes a differential 16 and a drive shaft 17, the differential 16 is connected to the first planet carrier 132 and the second planet carrier 142, and is connected to the drive shaft 17, so as to transmit power to the drive shaft 17, and thus drive wheels at the end of the drive shaft 17 to rotate.
Referring to fig. 1, fig. 2 and fig. 3, in the present embodiment, the first transmission member 151 and the second transmission member 152 may be cylindrical gears, and one end of the first transmission member 151 is externally engaged with the first gear ring 133, the other end of the first transmission member 151 is externally engaged with one end of the second transmission member 152, and the other end of the second transmission member 152 is externally engaged with the second gear ring 143, so as to achieve the purpose of connecting the first gear ring 133 and the second gear ring 143 in a reverse transmission manner.
It should be noted that, in this embodiment, only one set of the first transmission member 151 and the second transmission member 152 is included, in other embodiments, the reverse transmission mechanism 15 may also include a plurality of first transmission members 151 and a plurality of second transmission members 152, and the plurality of first transmission members 151 and the plurality of second transmission members 152 are in one-to-one transmission connection, and the plurality of first transmission members 151 are distributed along the periphery of the first gear ring 133, so that the force applied to the first gear ring 133 is relatively uniform. In addition, the first transmission members 151 may also be uniformly distributed along the outer periphery of the first ring gear 133, so that the radial force applied to the first ring gear 133 is offset, thereby performing a load balancing function.
In addition, in other embodiments, the reverse transmission mechanism 15 may further include at least one first stabilizing gear, and the first stabilizing gear and the first transmission member 151 are uniformly distributed along the outer periphery of the first gear ring 133, so that the first stabilizing gear and the first transmission member 151 jointly act on the first gear ring 133 to offset the radial force applied to the first gear ring 133. Of course, in other embodiments, the reverse transmission mechanism 15 may further include at least one second stabilizing gear, and the second stabilizing gear and the second transmission piece 152 are uniformly distributed along the outer periphery of the second gear ring 143, so that the second stabilizing gear and the second transmission piece 152 jointly act on the second gear ring 143 to offset the radial force applied to the second gear ring 143.
It should be noted that, in other embodiments, the first transmission member 151 may also include a first transmission gear, a first transmission rod and a third transmission gear, which are connected in sequence, and similarly, the second transmission member 152 may include a second transmission gear, a second transmission rod and a fourth transmission gear, which are connected in sequence. And the first transmission gear is externally engaged with the first gear ring 133, the third transmission gear is externally engaged with the second transmission gear, and the third transmission gear is externally engaged with the second gear ring 143, so that the purpose of reversely transmitting and connecting the first gear ring 133 and the second gear ring 143 through the first transmission piece 151 and the second transmission piece 152 is realized.
The working principle of the electric drive bridge 10 provided by the embodiment of the utility model is as follows:
the electric drive axle 10 comprises a first electric machine 11, a first planetary gear set 13, a second electric machine 12, a second planetary gear set 14 and a reversing gear 15, wherein the first electric machine 11 is connected to a first sun gear 131 of the first planetary gear set 13 and outputs a torque via a first planet carrier 132 of 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 outputs torque through the second carrier 142 of the second planetary gear set 14. And the first ring gear 133 of the first planetary reducer 13 is disposed in parallel with the second ring gear 143 of the second planetary reducer 14. The reverse transmission mechanism 15 includes a first transmission member 151 and a second transmission member 152, wherein one end of the first transmission member 151 is in transmission connection with the first gear ring 133, the other end of the first transmission member 151 is in external engagement with one end of the second transmission member 152, and the other end of the second transmission member 152 is in transmission connection with the second gear ring 143, so as to reversely transmit the first gear ring 133 and the second gear ring 143 through the first transmission member 151 and the second transmission member 152 which are in external engagement, so that when the torques output by the first motor 11 and the second motor 12 are different, part of the power of the first motor 11 can be transmitted to the second planetary reducer 14 through the first gear ring 133, the first transmission member 151, the second transmission member 152 and the second gear ring 143, and part of the power of the second motor 12 can be transmitted to the first planetary reducer 13 through the second gear ring 143, the second transmission member 152, the first transmission member 151 and the first gear ring 133, thereby realizing power coupling, and a mechanical mechanism is adopted to realize power coupling, so that the cost is lower and the reliability is higher.
In summary, the present invention provides an electric drive bridge 10, which has the features 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 utility model 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 (8)
1. An electric drive bridge is characterized by comprising a first motor (11), a first planetary reducer (13), a second motor (12), a second planetary reducer (14) and a reverse transmission mechanism (15);
the first electric machine (11) is connected to a first sun gear (131) of the first planetary gear set (13) and outputs a torque via a first carrier (132) of the first planetary gear set (13); the second motor (12) is connected with a second sun gear (141) of the second planetary reducer (14) and outputs torque through a second planet carrier (142) of the second planetary reducer (14);
the first ring gear (133) of the first planetary reducer (13) is arranged in parallel with the second ring gear (143) of the second planetary reducer (14); the reverse transmission mechanism (15) comprises a first transmission piece (151) and a second transmission piece (152), one end of the first transmission piece (151) is in transmission connection with the first gear ring (133), the other end of the first transmission piece is externally meshed with one end of the second transmission piece (152), and the other end of the second transmission piece (152) is in transmission connection with the second gear ring (143) to be in reverse transmission connection with the first gear ring (133) and the second gear ring (143).
2. Electric drive bridge according to claim 1, characterized in that the first transmission member (151) and the second transmission member (152) are cylindrical gears, one end of the first transmission member (151) being externally engaged with the first ring gear (133), the other end being externally engaged with one end of the second transmission member (152), the other end of the second transmission member (152) being externally engaged with the second ring gear (143).
3. The electric drive bridge according to claim 2, characterized in that the reversing gear (15) comprises a plurality of the first transmission members (151) and a plurality of the second transmission members (152), the plurality of the first transmission members (151) are in one-to-one transmission connection with the plurality of the second transmission members (152), and the first transmission members (151) are distributed along the outer circumference of the first ring gear (133).
4. An electric drive bridge according to claim 3, characterized in that a plurality of the first transmission members (151) are evenly distributed along the periphery of the first ring gear (133).
5. The electric drive bridge according to claim 1, characterized in that the counter transmission (15) further comprises at least one first stabilizing gearwheel which is evenly distributed with the first transmission member (151) along the periphery of the first ring gear (133).
6. Electric drive bridge according to claim 1, characterized in that the counter transmission (15) further comprises at least one second stabilizing gearwheel, which second stabilizing gearwheel is evenly distributed with the second transmission (152) along the periphery of the second ring gear (143).
7. The electric drive bridge according to claim 2, characterized in that the first transmission member (151) comprises a first transmission gear, a first transmission rod and a third transmission gear which are connected in sequence; the second transmission piece (152) comprises a second transmission gear, a second transmission rod and a fourth transmission gear which are connected in sequence;
the first transmission gear is externally meshed with the first gear ring (133), the third transmission gear is externally meshed with the second transmission gear, and the third transmission gear is externally meshed with the second gear ring (143).
8. Vehicle, characterized in that it comprises an electric drive axle according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122505363.9U CN215921859U (en) | 2021-10-18 | 2021-10-18 | Electric drive axle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122505363.9U CN215921859U (en) | 2021-10-18 | 2021-10-18 | Electric drive axle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215921859U true CN215921859U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122505363.9U Active CN215921859U (en) | 2021-10-18 | 2021-10-18 | Electric drive axle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215921859U (en) |
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2021
- 2021-10-18 CN CN202122505363.9U patent/CN215921859U/en active Active
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