CN217130223U - A vehicle that is used for drive assembly of vehicle and has it - Google Patents

Abstract

The utility model discloses a vehicle that is used for drive assembly of vehicle and has it, drive assembly includes: a first driver and a second driver; the planetary gear assembly comprises a movable gear ring, a first sun gear and a planet carrier device, wherein the first sun gear is connected with the first speed reducing mechanism, the planet carrier device is connected with the second speed reducing mechanism, and the planet carrier device comprises a plurality of first planet gears which are meshed with the first sun gear and the movable gear ring; the locking mechanism is disposed adjacent to the movable ring gear, and is movable between a locking position to lock the movable ring gear and a releasing position to release the movable ring gear. According to the utility model discloses a drive assembly when the vehicle is got rid of poverty, can guarantee to realize the coaxial synchronous revolution of first wheel and second wheel at the driving in-process.

Description

A vehicle that is used for drive assembly of vehicle and has it

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a vehicle that is used for individual drive assembly of vehicle to have it.

Background

In the related art, when the locking structure of the vehicle performs the synchronization function, the vehicle needs to stop running, and two ends of a transmission shaft of the vehicle are respectively matched with a left electric drive assembly gear and a right electric drive assembly gear of the vehicle. However, because there is the processing difference in the formation process of the left electric drive assembly gear and the right electric drive assembly gear, the transmission shaft is difficult to align the left electric drive assembly gear and the right electric drive assembly gear simultaneously, so that the vehicle can generate abnormal sound, and the left electric drive assembly gear or the right electric drive assembly gear can be damaged simultaneously, thereby reducing the reliability of parts, and further increasing the failure rate of the whole vehicle and the after-sale cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a drive assembly for vehicle, when the vehicle is got rid of poverty, can guarantee to realize the coaxial synchronous revolution of left wheel and right wheel at the driving in-process, can avoid the vehicle to produce the abnormal sound.

Another object of the present invention is to provide a vehicle using the above driving assembly.

According to the utility model discloses a drive assembly for vehicle of first aspect embodiment includes: a first driver and a second driver; a first reduction mechanism drivingly connected to the first drive and a first wheel of the vehicle, respectively, and a second reduction mechanism drivingly connected to the second drive and a second wheel of the vehicle, respectively; a planetary gear assembly including a movable ring gear, a first sun gear and a planet carrier device, the first sun gear being connected to the first reduction mechanism, the planet carrier device being connected to the second reduction mechanism, the planet carrier device including a plurality of first planet gears meshing with both the first sun gear and the movable ring gear; a locking mechanism disposed adjacent to the movable gear ring, the locking mechanism being movable between a locking position to lock the movable gear ring and a releasing position to release the movable gear ring.

According to the utility model discloses a drive assembly for vehicle, through making the planetary gear subassembly be located between first reduction gears and the second reduction gears, and first sun gear links to each other with first reduction gears, the planet carrier device links to each other with the second reduction gears, and locking mechanism is close to movable ring gear setting, and locking mechanism is movable between the locking position of locking movable ring gear and the release position of release movable ring gear. Therefore, when the vehicle is taken off, the coaxial synchronous rotation of the first wheel and the second wheel can be ensured in the driving process, the abnormal sound of the vehicle can be avoided, the reliability of parts of the driving assembly is improved, and the failure rate and the after-sale cost of the whole vehicle are reduced.

According to some embodiments of the invention, the outer peripheral surface of the movable ring gear has an extension extending radially outward of the movable ring gear; the locking mechanism comprises at least one friction plate, the friction plate is arranged on one side of the extending portion in the axial direction of the movable gear ring, the friction plate abuts against the extending portion when the locking mechanism is located at the locking position, and the friction plate and the extending portion are spaced from each other when the locking mechanism is located at the releasing position.

According to some embodiments of the invention, the locking mechanism further comprises: the friction plate comprises a mounting seat, a groove is formed in the mounting seat, the extending portion is matched in the groove, the extending portion and the inner wall of the groove are spaced from each other, and the friction plate is movably arranged on the inner wall of the groove.

According to some embodiments of the present invention, the mounting base is provided with at least one cylinder, and the friction plate is provided with at least one piston movable in the cylinder; the locking mechanism further includes: an actuator connected to the cylinder for driving the piston to move within the cylinder to switch the locking mechanism between the locked position and the released position.

According to some embodiments of the utility model, the friction disc with be equipped with the elastic component that resets between the mount pad, follow the axial direction of activity ring gear the elastic component that resets orientation is kept away from the direction of extension often stimulates the friction disc.

According to some embodiments of the present invention, the number of the friction plates is two, and the friction plates are respectively located along the extending portion on both sides of the movable ring gear in the axial direction.

According to some embodiments of the invention, the first driver and the first reduction gear are located on one axial side of the mobile gear ring, and the second driver and the second reduction gear are located on the other axial side of the mobile gear ring.

According to some embodiments of the invention, the first driver and the second driver are symmetrically disposed about the planetary gear assembly, and the first reduction mechanism and the second reduction mechanism are symmetrically disposed about the planetary gear assembly.

According to some embodiments of the present invention, the first reduction gear comprises a first transmission gear, a second transmission gear, a third transmission gear and a fourth transmission gear, the first transmission gear is fixed on the first output shaft of the first driver, the second transmission gear and the third transmission gear are coaxially arranged, the second transmission gear is engaged with the first transmission gear, the fourth transmission gear is engaged with the third transmission gear, one end of the fourth transmission gear is connected to the first sun gear, and the other end of the fourth transmission gear is adapted to be connected to the first wheel; the second speed reducing mechanism comprises a fifth transmission gear, a sixth transmission gear, a seventh transmission gear and an eighth transmission gear, the fifth transmission gear is fixed on a second output shaft of the second driver, the sixth transmission gear and the seventh transmission gear are coaxially arranged, the sixth transmission gear is meshed with the fifth transmission gear, the eighth transmission gear is meshed with the seventh transmission gear, one end of the eighth transmission gear is connected with the planet carrier device, and the other end of the eighth transmission gear is suitable for being connected with the second wheel.

According to some embodiments of the present invention, the planetary gear assembly is located between the fourth drive gear and the eighth drive gear; and/or the first driver and the second driver are coaxially arranged; and/or the second transmission gear, the third transmission gear, the sixth transmission gear and the seventh transmission gear are coaxially arranged.

According to some embodiments of the invention, the planet carrier arrangement further comprises: fixing the gear ring; a second sun gear connected to the second reduction mechanism; a plurality of second planetary gears coaxially fixed with the plurality of first planetary gears, respectively, the plurality of second planetary gears being engaged with both the second sun gear and the fixed ring gear.

According to the utility model discloses vehicle of second aspect embodiment, including first wheel, second wheel and according to the utility model discloses a be used for drive assembly of vehicle of above-mentioned first aspect embodiment, first wheel with drive assembly's first reduction gears links to each other, the second wheel with drive assembly's second reduction gears links to each other.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a drive assembly according to an embodiment of the present invention;

fig. 2 is an assembly schematic view of a speed reduction mechanism and a lock mechanism according to an embodiment of the present invention;

FIG. 3 is an exploded view of the locking mechanism shown in FIG. 2;

fig. 4 is an assembly schematic view of another angle of the speed reducing mechanism and the locking mechanism according to the embodiment of the present invention;

FIG. 5 is a schematic view of a planetary gear assembly according to an embodiment of the present invention;

fig. 6 is a schematic view of a drive assembly according to another embodiment of the present invention.

Reference numerals:

100: a drive assembly;

1: a first driver; 11: a first output shaft; 2: a second driver; 21: a second output shaft;

3: a first speed reduction mechanism; 31: a first drive gear; 32: a second transmission gear; 33: a third transmission gear;

34: a fourth transmission gear; 4: a second reduction mechanism; 41: a fifth transmission gear; 42: a sixth transmission gear;

43: a seventh transmission gear; 44: an eighth transmission gear; 5: a planetary gear assembly; 51: a movable gear ring;

511: an extension portion; 52: a first sun gear; 53: a planet carrier arrangement; 531: a first planetary gear;

532: a planet carrier; 54: fixing the gear ring; 55: a second sun gear; 56: a second planetary gear;

6: a locking mechanism; 61: a friction plate; 611: a piston; 612: a restoring elastic member; 62: a mounting seat;

621: a groove; 622: a cylinder body; 63: an actuator; 64: a pipeline.

Detailed Description

A drive assembly 100 for a vehicle according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 6.

As shown in fig. 1 to 6, a drive assembly 100 for a vehicle according to an embodiment of the first aspect of the present invention includes a first driver 1, a second driver 2, a first reduction gear mechanism 3, a second reduction gear mechanism 4, a planetary gear assembly 5, and a lock mechanism 6.

Specifically, the first reduction mechanism 3 is drivingly connected to the first drive 1 and a first wheel of the vehicle, the second reduction mechanism 4 is drivingly connected to the second drive 2 and a second wheel of the vehicle, the planetary gear assembly 5 includes a movable ring gear 51, a first sun gear 52, and a carrier device 53, the first sun gear 52 is connected to the first reduction mechanism 3, the carrier device 333 is connected to the second reduction mechanism 4, and the carrier device 53 includes a plurality of first planetary gears 531 that mesh with both the first sun gear 52 and the movable ring gear 51. In the description of the present invention, "a plurality" means two or more. The lock mechanism 6 is disposed adjacent to the movable ring gear 51, and the lock mechanism 6 is movable between a lock position to lock the movable ring gear 51 and a release position to release the movable ring gear 51.

For example, in the example of fig. 1 to 6, the planetary gear assembly 5 may be located between the first reduction mechanism 3 and the second reduction mechanism 4, the first sun gear 52 is located in the middle of the movable ring gear 51, the first sun gear 52 is coaxially disposed with the movable ring gear 51, the first sun gear 52 may be in meshing connection with the movable ring gear 51 through three first planet gears 531, the carrier device 53 further includes a carrier 532, the three first planet gears 531 are connected at one end of the carrier 532 at intervals, and the second reduction mechanism 4 is connected with the carrier 532. The lock mechanism 6 may be provided on one side in the radial direction of the movable ring gear 51. When the locking mechanism 6 is in the locking position, the movable ring gear 51 is fixed, and the first sun gear 52 and the plurality of first planet gears 3331 are driven coaxially and synchronously, so that the torques of the first driver 1 and the second driver 2 can be concentrated on the central axis of the first sun gear 52, and the vehicle can be timely trapped when the wheels slip. When the lock mechanism 4 is in the release position, the first driver 1 and the second driver 2 can independently drive the first reduction mechanism 3 and the second reduction mechanism 4, respectively, and at this time, the movable ring gear 51 can freely rotate, and the first sun gear 52 and the plurality of first planetary gears 3331 rotate independently of each other, so that the normal running of the vehicle is ensured.

When the vehicle runs normally and there is no difference in rotation speed between the first driver 1 and the second driver 2, the first reduction mechanism 3 and the second reduction mechanism 4 respectively drive the first sun gear 52 and the planet carrier device 53 to rotate, at this time, the plurality of first planet gears 3331 are stationary relative to the first sun gear 52 and drive the movable ring gear 331 to rotate, the rotation directions of the first sun gear 52, the plurality of first planet gears 531 and the movable ring gear 51 are the same, and the rotation speeds of the first wheel and the second wheel are the same; when the vehicle runs normally and a rotation speed difference exists between the first driver 1 and the second driver 2, the first reduction mechanism 3 and the second reduction mechanism 4 respectively drive the first sun gear 52 and the planet carrier device 53 to rotate, the plurality of first planet gears 531 rotate and drive the movable ring gear 51 to rotate, if the rotation speed of the planet carrier device 53 is greater than that of the first sun gear 52, the rotation directions of the first sun gear 52, the plurality of first planet gears 531 and the movable ring gear 51 are the same, and the rotation speed of the first wheel is less than that of the second wheel; if the rotational speed of the carrier device 53 is less than the rotational speed of the first sun gear 52, the rotational directions of the first sun gear 52 and the plurality of first planet gears 531 are the same, the rotational direction of the movable ring gear 51 is opposite to the rotational directions of the first sun gear 52 and the plurality of first planet gears 531, and the rotational speed of the first wheel is greater than the rotational speed of the second wheel.

From this, compare with the locking structure of traditional vehicle, drive assembly 100 can realize the simultaneous drive and the differential drive of first wheel and second wheel at the driving in-process of vehicle, can realize the coaxial synchronous revolution of first wheel and second wheel when the vehicle is stranded, in order to guarantee that the vehicle can get rid of poverty, and the alignment process of transmission shaft and first reduction gears 3 and second reduction gears 4 has been omitted, thereby can avoid appearing the circumstances such as gear grinding, gear beating or latch when locking mechanism 6 is located locking position, and then can avoid the vehicle to produce abnormal sound, the reliability of the part of drive assembly 100 has been improved, whole car fault rate and after-sale cost have been reduced.

According to the drive assembly 100 for a vehicle of the embodiment of the present invention, by having the planetary gear assembly 5 located between the first reduction mechanism 3 and the second reduction mechanism 4, and the first sun gear 52 connected to the first reduction mechanism 3, the planet carrier device 53 is connected to the second reduction mechanism 4, the locking mechanism 6 is provided adjacent to the movable ring gear 51, and the locking mechanism 6 is movable between the locking position of locking the movable ring gear 51 and the releasing position of releasing the movable ring gear 51. Therefore, when the vehicle is getting rid of trouble, the coaxial synchronous rotation of the first wheel and the second wheel can be ensured in the driving process, the abnormal sound of the vehicle can be avoided, the reliability of the parts of the driving assembly 100 is improved, and the failure rate of the whole vehicle and the after-sale cost are reduced.

According to some embodiments of the present invention, referring to fig. 2 and 4, the outer peripheral surface of the movable ring gear 51 has an extension 511 extending radially outward of the movable ring gear 51. The lock mechanism 6 includes at least one friction plate 61, the friction plate 61 is provided on one side of the extending portion 511 in the axial direction of the movable ring gear 51, the friction plate 61 abuts against the extending portion 511 when the lock mechanism 6 is in the lock position, and the friction plate 61 and the extending portion 511 are spaced apart from each other when the lock mechanism 6 is in the release position. Specifically, when the locking mechanism 6 is located at the locking position, the friction plate 61 is pressed against the extending portion 511, and the movable ring gear 61 is stopped by the friction force between the friction plate 61 and the extending portion 511, so that the torques of the first driver 1 and the second driver 2 are concentrated on the central axis of the first sun gear 52, the coaxial synchronous rotation of the first speed reduction mechanism 3 and the second speed reduction mechanism 4 is realized, the slipping phenomenon of one side wheel can be avoided, and the vehicle can be quickly taken out of the position. When the lock mechanism 6 is in the release position, the friction plate 61 is not in contact with the extension 511 to ensure that the movable ring gear 51 can rotate freely, and the vehicle can run normally.

Further, the locking mechanism 6 further includes a mounting seat 62, a groove 621 is formed on the mounting seat 62, the extending portion 511 is fitted in the groove 621, and the extending portion 511 and the inner wall of the groove 621 are spaced apart from each other, and the friction plate 61 is movably disposed on the inner wall of the groove 621. Referring to fig. 3 in combination with fig. 2 and 4, a groove 621 is formed on one side of the mounting seat 62 adjacent to the movable ring gear 51, the groove 621 extends along the length direction of the mounting seat 62, two ends of the groove 621 are respectively communicated with two ends of the mounting seat 62 in the length direction, and the mounting seat 62 can be clamped on the extending portion 511 through the groove 621. When the lock mechanism 6 is located at the lock position, the friction plate 61 is moved in the axial direction of the movable ring gear 51 and toward the extension portion 511, so that the friction plate 61 is pressed against the extension portion 511; when the lock mechanism 6 is located at the release position, the friction plate 61 is moved in the axial direction of the movable ring gear 51 and away from the extension portion 511, so that the friction plate 61 is disengaged from the extension portion 511. Thereby, locking and releasing of the locking mechanism 6 are achieved.

Further, the mounting seat 62 is provided with at least one cylinder 622, and the friction plate 61 is provided with at least one piston 611 movable in the cylinder 622. The locking mechanism 6 further includes an actuator 63, and the actuator 63 is connected to the cylinder 622 for driving the piston 611 to move in the cylinder 622 so that the locking mechanism 6 is switched between the locking position and the releasing position. As shown in fig. 3, two cylinders 622 are disposed on one side of the mounting seat 62 in the width direction, the two cylinders 622 are spaced apart from each other along the length direction of the mounting seat 62, each cylinder 622 can be connected to the actuator 63 through a pipeline 64, two pistons 611 are disposed on the friction plate 61 at intervals, and the two pistons 611 are respectively fitted in the two cylinders 622. When the actuator 63 receives the coaxial synchronization signal, the actuator 63 may apply a force to the friction plate 61 through the pipeline 64, so that the two pistons 611 move in a direction toward the extension portion 511 and press the friction plate 61 against the extension portion 511; when the actuator 63 receives the off signal, the actuator 63 releases the force applied to the friction plate 61, and the two pistons 611 move in the direction away from the extension 511 to disengage the friction plate 61 from the extension 511. Thus, automatic locking and releasing of the locking mechanism 6 can be achieved during driving.

Alternatively, the actuator 63 may be a hydraulic actuator, a pneumatic actuator, or an electric motor actuator. For example, when the actuator 63 is a hydraulic actuator, the hydraulic actuator pumps the fluid to the cylinder 622 through the pipeline 64 and pushes the friction plate 61 to move toward the extension 511 after receiving the coaxial synchronization signal; the hydraulic actuator receives the opening signal, and actively releases the pressure in the cylinder 622, so that the friction plate 61 is automatically separated from the extension portion 511.

In some alternative embodiments, drive assembly 100 for a vehicle further includes a controller (not shown) communicatively coupled to actuator 63. When the controller receives the coaxial synchronization signal (i.e. the driver starts the synchronization key) and transmits the coaxial synchronization signal to the hydraulic actuator, the hydraulic actuator pressurizes the cylinder 622 to push the friction plate 61 to move; when the controller receives the off signal (i.e. the driver closes the synchronization button) and transmits the off signal to the hydraulic actuator, the hydraulic actuator releases the pressure of the cylinder 622, so that the friction plate 61 is automatically separated from the extension portion 511. Alternatively, the synchronization key may be provided on the instrument panel of the vehicle. Therefore, the user requirements can be better met.

In some alternative embodiments, the drive assembly 100 for a vehicle further includes a wheel speed sensor (not shown) communicatively coupled to the controller. The wheel speed sensor is used for detecting the wheel speeds of the first wheel and the second wheel, and when the wheel speed difference between the first wheel and the second wheel is greater than or equal to 100rpm, the actuator 63 receives the coaxial synchronous signal; the actuator 63 is turned off when the difference between the wheel speeds of the first wheel and the second wheel is less than 100 rpm. Thereby, the lock mechanism 6 can be controlled more accurately in accordance with the wheel speeds of the first wheel and the second wheel.

According to some embodiments of the present invention, as shown in fig. 3, a resilient restoring member 612 is disposed between the friction plate 61 and the mounting seat 62, and the friction plate 61 is pulled along the axial direction of the movable ring gear 331 and the resilient restoring member 612 toward the direction away from the extension portion 3311. When the controller receives the open signal, the friction plate 61 may be disengaged from the extension 511 by the restoring force of the return elastic member 612. So set up, locking mechanism 6's simple structure, convenient assembly can improve locking mechanism 6's assembly efficiency.

In some alternative embodiments, referring to fig. 3, the friction plates 61 are two, and the two friction plates 61 are respectively located on both sides of the extension portion 511 in the axial direction of the movable ring gear 51. With this arrangement, the frictional force between the friction plates 61 and the extended portion 511 can be increased, and when the lock mechanism 6 is located at the lock position, the extended portion 511 can be firmly clamped between the two friction plates 61, while the lock mechanism 6 can be quickly switched to the lock position.

According to some embodiments of the present invention, as shown in fig. 1, the first driver 1 and the first reduction mechanism 3 are located on one axial side of the movable ring gear 51, and the second driver 2 and the second reduction mechanism 4 are located on the other axial side of the movable ring gear 51. For example, the first driver 1 and the second driver 2 are symmetrically disposed about the planetary gear assembly 5, and the first reduction mechanism 3 and the second reduction mechanism 4 are symmetrically disposed about the planetary gear assembly 5. Thus, when the locking mechanism 6 is in the locking position, it is ensured that the torques of the first driver 1 and the second driver 2 can be concentrated on the central axis of the first sun gear 52, and the structure of the driving assembly 100 is more regular.

According to some embodiments of the present invention, referring to fig. 1, the first speed reducing mechanism 3 includes a first transmission gear 31, a second transmission gear 32, a third transmission gear 33 and a fourth transmission gear 34, the first transmission gear 31 is fixed on the first output shaft 11 of the first driver 1, the second transmission gear 32 and the third transmission gear 33 are coaxially disposed, the second transmission gear 32 is engaged with the first transmission gear 31, the fourth transmission gear 34 is engaged with the third transmission gear 33, one end of the fourth transmission gear 34 is connected to the first sun gear 52, and the other end of the fourth transmission gear 34 is adapted to be connected to the first wheel. Wherein, the second transmission gear 32 and the third transmission gear 33 are fixedly connected. When the first driver 1 works, the first output shaft 11 can drive the first transmission gear 31 to rotate, the second transmission gear 32 and the third transmission gear 33 can be driven to rotate by the rotation of the first transmission gear 31, so that the fourth transmission gear 34 can be driven to rotate by the rotation of the third transmission gear 33, and then the first sun gear 52 and the first wheel can be driven to rotate by the rotation of the fourth transmission gear 34, so that the normal running of the vehicle is ensured.

Further, as shown in fig. 1, the second reduction mechanism 4 includes a fifth transfer gear 41, a sixth transfer gear 42, a seventh transfer gear 43, and an eighth transfer gear 44, the fifth transfer gear 41 is fixed on the second output shaft 21 of the second driver 2, the sixth transfer gear 42 and the seventh transfer gear 43 are coaxially disposed, the sixth transfer gear 42 is engaged with the fifth transfer gear 41, the eighth transfer gear 44 is engaged with the seventh transfer gear 43, one end of the eighth transfer gear 44 is connected to the carrier device 53, and the other end of the eighth transfer gear 44 is adapted to be connected to the second wheel. Wherein, the sixth transmission gear 42 and the seventh transmission gear 43 are fixedly connected. When the second driver 2 works, the second output shaft 21 can drive the fifth transmission gear 41 to rotate, and the rotation of the fifth transmission gear 41 can drive the sixth transmission gear 42 and the seventh transmission gear 43 to rotate, so that the eighth transmission gear 44 can be driven to rotate by the rotation of the seventh transmission gear 43, and further the planet carrier 532 and the second wheel can be driven to rotate by the rotation of the eighth transmission gear 44, so as to ensure the normal running of the vehicle.

In some alternative embodiments, referring to fig. 1, the planetary gear assembly 5 is located between the fourth transmission gear 34 and the eighth transmission gear 44, and/or the first driver 1 and the second driver 2 are coaxially arranged, and/or the second transmission gear 32, the third transmission gear 33, the sixth transmission gear 42 and the seventh transmission gear 43 are coaxially arranged. So configured, the structure of the drive assembly 100 can be made more compact, thereby facilitating a miniaturized design of the drive assembly 100.

According to other embodiments of the present invention, as shown in fig. 6, the planet carrier device 53 further includes a fixed ring gear 54, a second sun gear 55 and a plurality of second planet gears 56, the second sun gear 55 is connected to the second speed reduction mechanism 4, the plurality of second planet gears 56 are coaxially fixed with the plurality of first planet gears 531, respectively, and the plurality of second planet gears 56 are engaged with both the second sun gear 55 and the fixed ring gear 54. Because the first wheel and the second wheel do not rotate at the same speed when the movable ring gear 51 is locked, the inertia after the vehicle is out of the position may cause the running vehicle to be unstable. Therefore, by arranging the fixed ring gear 54, the second sun gear 55 and the plurality of second planetary gears 56, the transmission ratio between the first wheel and the second wheel can be effectively adjusted, so that the rotation speeds of the first wheel and the second wheel are consistent after the movable ring gear 51 is locked, and the running stability of the vehicle after getting out of trouble can be ensured.

According to a vehicle (not shown) of the second aspect of the present invention, the vehicle comprises a first wheel, a second wheel and a driving assembly 100 for a vehicle according to the first aspect of the present invention, the first wheel is connected to the first speed reduction mechanism 3 of the driving assembly 100, and the second wheel is connected to the second speed reduction mechanism 4 of the driving assembly 100.

According to the utility model discloses vehicle, through adopting above-mentioned drive assembly 100, can realize the coaxial synchronous rotation of first wheel and second wheel at the driving in-process to make the vehicle can get rid of poverty fast.

Other configurations and operations of vehicles according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A drive assembly for a vehicle, comprising:

a first driver and a second driver;

a first reduction mechanism drivingly connected to the first drive and a first wheel of the vehicle, respectively, and a second reduction mechanism drivingly connected to the second drive and a second wheel of the vehicle, respectively;

a planetary gear assembly including a movable ring gear, a first sun gear and a planet carrier device, the first sun gear being connected to the first reduction mechanism, the planet carrier device being connected to the second reduction mechanism, the planet carrier device including a plurality of first planet gears meshing with both the first sun gear and the movable ring gear;

a locking mechanism disposed adjacent to the movable gear ring, the locking mechanism being movable between a locking position to lock the movable gear ring and a releasing position to release the movable gear ring.

2. The drive assembly for a vehicle according to claim 1, wherein the outer peripheral surface of the movable ring gear has an extension that extends outward in a radial direction of the movable ring gear;

the locking mechanism comprises at least one friction plate, the friction plate is arranged on one side of the extending portion in the axial direction of the movable gear ring, the friction plate abuts against the extending portion when the locking mechanism is located at the locking position, and the friction plate and the extending portion are spaced from each other when the locking mechanism is located at the releasing position.

3. The drive assembly for a vehicle of claim 2, wherein said locking mechanism further comprises:

the friction plate comprises a mounting seat, a groove is formed in the mounting seat, the extending portion is matched in the groove, the extending portion and the inner wall of the groove are spaced from each other, and the friction plate is movably arranged on the inner wall of the groove.

4. A drive assembly for a vehicle according to claim 3 wherein said mounting is provided with at least one cylinder and said friction plate is provided with at least one piston movable within said cylinder;

the locking mechanism further includes:

an actuator connected to the cylinder for driving the piston to move within the cylinder to switch the locking mechanism between the locked position and the released position.

5. The drive assembly for the vehicle according to claim 4, wherein a return elastic member is provided between the friction plate and the mount, and the friction plate is constantly pulled in an axial direction of the movable ring gear by the return elastic member toward a direction away from the extended portion.

6. The drive assembly for the vehicle according to claim 2, wherein the friction plates are two, and the two friction plates are respectively located on both sides of the extension portion in the axial direction of the movable ring gear.

7. The drive assembly for the vehicle according to claim 1, wherein the first driver and the first reduction mechanism are located on one side in an axial direction of the movable ring gear, and the second driver and the second reduction mechanism are located on the other side in the axial direction of the movable ring gear.

8. The drive assembly for a vehicle of claim 7, wherein the first and second drivers are symmetrically disposed about the planetary gear assembly and the first and second reduction mechanisms are symmetrically disposed about the planetary gear assembly.

9. The drive assembly for a vehicle according to claim 1, wherein the first reduction mechanism includes a first transmission gear fixed to a first output shaft of the first driver, a second transmission gear coaxially disposed with the third transmission gear, a third transmission gear meshed with the first transmission gear, and a fourth transmission gear meshed with the third transmission gear, one end of the fourth transmission gear being connected to the first sun gear, and the other end of the fourth transmission gear being adapted to be connected to the first wheel;

the second speed reducing mechanism comprises a fifth transmission gear, a sixth transmission gear, a seventh transmission gear and an eighth transmission gear, the fifth transmission gear is fixed on a second output shaft of the second driver, the sixth transmission gear and the seventh transmission gear are coaxially arranged, the sixth transmission gear is meshed with the fifth transmission gear, the eighth transmission gear is meshed with the seventh transmission gear, one end of the eighth transmission gear is connected with the planet carrier device, and the other end of the eighth transmission gear is suitable for being connected with the second wheel.

10. The drive assembly for a vehicle of claim 9, wherein said planetary gear assembly is located between said fourth drive gear and said eighth drive gear; and/or

The first driver and the second driver are coaxially arranged; and/or

The second transmission gear, the third transmission gear, the sixth transmission gear and the seventh transmission gear are coaxially arranged.

11. The drive assembly for a vehicle of claim 1, wherein said planet carrier arrangement further comprises:

fixing the gear ring;

a second sun gear connected to the second reduction mechanism;

a plurality of second planetary gears coaxially fixed with the plurality of first planetary gears, respectively, the plurality of second planetary gears being engaged with both the second sun gear and the fixed ring gear.

12. A vehicle comprising a first wheel coupled to a first reduction mechanism of the drive assembly, a second wheel coupled to a second reduction mechanism of the drive assembly, and a drive assembly for a vehicle according to any of claims 1-11.

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