CN210770098U - Axle driving device, drive axle assembly and vehicle - Google Patents
Axle driving device, drive axle assembly and vehicle Download PDFInfo
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- CN210770098U CN210770098U CN201921762644.9U CN201921762644U CN210770098U CN 210770098 U CN210770098 U CN 210770098U CN 201921762644 U CN201921762644 U CN 201921762644U CN 210770098 U CN210770098 U CN 210770098U
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Abstract
The utility model provides an axle driving device, a drive axle assembly and a vehicle, wherein, the axle driving device comprises a power input shaft, a first power output shaft for driving a first axle and a second power output shaft for driving a second axle; an inter-axle differential is arranged between the power input shaft and the first power output shaft; one output end of the interaxle differential is connected with a first power output shaft, a driving gear is arranged at the other output end of the interaxle differential, and a driven gear meshed with the driving gear is arranged on a second power output shaft; the power input shaft is combined with or separated from the driving gear so as to correspondingly lock or unlock the inter-axle differential. When the vehicle slips, turns or passes over a rugged road, the vehicle can be helped to normally run through the axle driving device.
Description
Technical Field
The utility model relates to the technical field of vehicles, especially, relate to an axle drive arrangement, transaxle assembly and vehicle.
Background
In a vehicle, the axle driving device is used for transmitting power generated by an engine or a motor to an axle, so that the vehicle is driven to run through the axle.
For some medium and large vehicles, the axle drive device is used to drive two axles, so that the wheels on the corresponding axles generate power. When the vehicle turns or runs on a rugged road, the paths and paths of the wheels are different, which can cause the rotation speed interference between different axles, so that the vehicle cannot run normally, and thus the vehicle tires are abnormally worn.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide an axle drive arrangement, transaxle assembly and vehicle for solve among the prior art vehicle turn to or go when rugged road surface, make the problem that the vehicle can not normally travel because of the rotational speed interference between the different axles.
In order to solve the above problem, the utility model provides a: an axle driving device comprises a power input shaft, a first power output shaft and a second power output shaft, wherein the first power output shaft is used for driving a first axle;
an inter-axle differential is arranged between the power input shaft and the first power output shaft;
one output end of the interaxial differential is connected with the first power output shaft, the other output end of the interaxial differential is provided with a driving gear, and the second power output shaft is provided with a driven gear meshed with the driving gear;
the power input shaft is combined with or separated from the driving gear so as to correspondingly lock or unlock the inter-axle differential.
As a further improvement of the above technical solution, the inter-axle differential includes a case, a first side gear, and a second side gear;
a planet carrier and a planet wheel rotatably arranged on the planet carrier are arranged in the shell, and the planet carrier is synchronously and rotatably connected with the power input shaft;
the first side gear and the second side gear are both meshed with the planet gear;
the first half shaft gear is connected with the driving gear in a synchronous rotating mode, and the second half shaft gear is fixedly connected with the first power output shaft.
As a further improvement of the technical scheme, the planet wheels are multiple and distributed in an annular array around the central shaft of the planet carrier.
As a further improvement of the above technical solution, the power input shaft is coupled to or decoupled from the driving gear through an inter-shaft differential lock;
the inter-axle differential lock comprises a first locking part and a second locking part, wherein the first locking part is in synchronous rotating connection with the power input shaft;
the first locking part is arranged on the power input shaft in a sliding mode, the second locking part is fixedly arranged on the driving gear, and the first locking part is combined with or separated from the second locking part by sliding;
when the first locking part is combined with the second locking part, the first locking part and the second locking part are synchronously and rotatably connected.
As a further improvement of the above technical solution, the first locking portion is provided with a gear shaping, and the second locking portion is provided with a slot corresponding to the gear shaping.
As a further improvement of the above technical solution, a toggle device is arranged on the first locking part;
the toggle device is used for driving the first locking part to slide on the power input shaft.
As a further improvement of the technical scheme, the shifting device comprises a shifting fork arranged on the first locking part and a power unit used for driving the shifting fork to move.
As a further improvement of the technical scheme, the power unit comprises one of an electric push rod, a hydraulic cylinder or an air cylinder.
The utility model discloses still provide: a drive axle assembly comprising an axle drive arrangement as described above.
The utility model discloses still provide: a vehicle comprising an axle drive arrangement as described above.
The utility model has the advantages that: the utility model provides an axle drive arrangement, including power input shaft, be used for driving the first power output shaft of first axle and be used for driving the second power output shaft of second axle. The power input shaft transmits power to the first and second power output shafts, thereby causing wheels on the first and second axles to rotate.
When partial wheels on the first axle or the second axle are in a slipping condition, the inter-axle differential can be in a locking state through the combination of the power input shaft and the driving gear. When the inter-axle differential is in a locked state, the two output ends of the inter-axle differential synchronously rotate with the power input shaft and the first power output shaft, and at the moment, the power input shaft directly drives the second power output shaft to rotate through the driving gear and the driven gear, so that the first axle and the second axle are ensured to obtain enough torque to enable the vehicle to normally run.
When the vehicle turns or runs on a rugged road, the interaxle differential can be in an unlocked state by separating the power input shaft from the driving gear. When the inter-axle differential is in an unlocked state, the torque of the power input shaft is divided into two parts through two output ends of the inter-axle differential: one part is transmitted to the first power output shaft, and the other part is transmitted to the second power output shaft through the driving gear and the driven gear. At this time, the inter-axle differential acts as a differential, allowing the wheels on the first and second axles to create a speed differential, thereby facilitating the vehicle to turn or drive over a rough road surface.
When the vehicle skids, turns or passes over a rugged road, the vehicle can be helped to normally run by the axle driving device, and abnormal abrasion of tires is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 shows a schematic view of an axle drive arrangement;
FIG. 2 shows an exploded view of an inter-axle differential;
FIG. 3 shows a schematic view of a first locking portion;
FIG. 4 shows a schematic view of a second locking connection;
FIG. 5 shows a schematic view of a power input shaft;
FIG. 6 is a schematic view of an axle drive assembly with the first and second locking portions disengaged;
FIG. 7 is a schematic view of an axle drive assembly with a first locking connection coupled to a second locking connection;
FIG. 8 shows a schematic view of a drive axle assembly.
Description of the main element symbols:
1-a power input shaft; 2-a first power take-off shaft; 3-a second power output shaft; 4-a second axle; 5-interaxial differential; 6-a driving gear; 7-a driven gear; 8-a shell; 9-a first half-shaft gear; 10-a second side gear; 11-a planet carrier; 12-a planet wheel; 13-a first locking portion; 14-a second locking portion; 15-through groove; 16-a via hole; 17-gear shaping; 18-a slot; 19-a toggle device; 20-a shifting fork; 21-inserting groove; 22-drive axle assembly.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of 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.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Example one
The vehicle can be powered by an engine or an electric motor, and the power generated by the engine or the electric motor is transmitted to the axle driving device after being decelerated and torque-increased by a speed reducer and the like, so that wheels on the first axle and the second axle 4 are driven to rotate.
Referring to fig. 1, in the present embodiment, an axle driving apparatus is provided, which includes a power input shaft 1, a first power output shaft 2 for driving a first axle, and a second power output shaft 3 for driving a second axle 4. For ease of viewing, the first axle is not shown in FIG. 1.
An inter-axle differential 5 is arranged between the power input shaft 1 and the first power output shaft 2.
One output end of the interaxle differential 5 is connected with the first power output shaft 2, the other output end of the interaxle differential 5 is provided with a driving gear 6, and the second power output shaft 3 is provided with a driven gear 7 engaged with the driving gear 6.
The power input shaft 1 is engaged with or disengaged from the drive gear 6 to lock or unlock the inter-axle differential 5, respectively.
When the power input shaft 1 is combined with the driving gear 6, the inter-axle differential 5 is in a locked state, and at this time, the inter-axle differential 5 does not play a differential role.
When the inter-axle differential 5 is in a locked state, the two output ends of the inter-axle differential 5 cannot rotate relatively, and the two output ends of the inter-axle differential 5, the power input shaft 1 and the first power output shaft 2 can be regarded as rigid connection and can rotate synchronously with each other. At this time, the power input shaft 1 also directly drives the second power output shaft 3 to rotate through the driving gear 6 and the driven gear 7.
When some wheels on the first axle or the second axle 4 slip, the inter-axle differential 5 may be locked to ensure that sufficient torque is available for the first axle and the second axle 4 to allow the vehicle to run normally.
When the power input shaft 1 is disengaged from the drive gear 6, the inter-axle differential 5 is in the unlocked state, and at this time, the inter-axle differential 5 performs a differential function.
When the bearing differential is in the unlocked state, the two output ends of the inter-axle differential 5 divide the torque of the power input shaft 1 into two parts: one part of the power is transmitted to the first power output shaft 2, and the other part is transmitted to the second power output shaft 3 through the driving gear 6 and the driven gear 7. At this time, the inter-axle differential 5 functions as a differential, and the two output ends of the bearing differential allow different rotations.
When the vehicle is turning or traveling on a rough road, the inter-axle differential 5 can be placed in an unlocked state, allowing a speed difference to be generated between the wheels of the first and second axles 4, thereby facilitating the vehicle to turn or travel over a rough road.
As shown in fig. 2, in the present embodiment, the inter-axle differential 5 includes a case 8, a first side gear 9, and a second side gear 10.
A planet carrier 11 and planet wheels 12 rotatably arranged on the planet carrier 11 are arranged in the housing 8, and the first side gear 9 and the second side gear 10 are both meshed with the planet wheels 12. Wherein, the planet carrier 11 may be provided with a mounting shaft for mounting the planet wheel 12.
In the present embodiment, the planet gears 12 are provided in plurality and distributed in an annular array about the central axis of the planet carrier 11. The planet wheels 12 may alternatively be bevel gears, wherein the axles of the planet wheels 12 are inserted into the housing 8 and are rotationally connected to the housing 8.
The number of planet wheels 12 can be set as desired, for example four, five, etc.
Preferably, the number of the planet wheels 12 may be set to three. Therefore, the stability of transmission can be ensured, and meanwhile, the manufacturing and assembling cost can be better saved.
The planet carrier 11 and the housing 8 do not rotate relatively, and the planet carrier 11 and the power input shaft 1 are connected in a synchronous rotation mode.
The planet carrier 11 may be provided with a connecting hole coaxial with the central axis thereof, and one end of the power input shaft 1 may be provided with a connecting end in interference fit with the connecting hole. Wherein, in order to avoid the relative rotation between the planet carrier 11 and the power input shaft 1, the cross sections of the connecting hole and the connecting end can be set to be in non-circular shapes such as triangle, rectangle, etc.
Besides, the synchronous rotation connection can also be realized in a fixed connection mode. Or the synchronous rotary connection between the two elements is realized through the matching of the flat key and the key slot.
In the present embodiment, the two output ends of the inter-axle differential 5 correspond to the first side gear 9 and the second side gear 10, respectively.
The first half shaft gear 9 is connected with the driving gear 6 in a synchronous rotating mode, and the second half shaft gear 10 is fixedly connected with the first power output shaft 2. Meanwhile, the driving gear 6 and the first half-shaft gear 9 are both sleeved on the power input shaft 1 and are both in clearance fit with the power input shaft 1.
The power input shaft 1, the driving gear 6, the first side gear 9, the second side gear 10 and the first power output shaft 2 are all coaxially arranged.
After the power input shaft 1 is separated from the driving gear 6, the inter-axle differential 5 is in an unlocked state:
when the power input shaft 1 rotates, the planet carrier 11 rotates synchronously therewith, at the moment, under the action of the planet carrier 11, the planet wheel 12 revolves around the central shaft of the planet carrier 11, and the first side gear 9 and the second side gear 10 are driven to rotate by the planet wheel 12;
the first half shaft gear 9 rotates to drive the driving gear 6 to synchronously rotate, and thus drives the driven gear 7 to rotate, and then drives the second power output shaft 3;
the second side gear 10 rotates to drive the first power output shaft 2 to rotate synchronously.
When the inter-axle differential 5 is in the unlocked state, the power input shaft 1 transmits torque to the second power output shaft 3 and the first power output shaft 2 through the first side gear 9 and the second side gear 10 of the inter-axle differential 5, respectively. In the running process of the vehicle, the planet wheels 12 in the interaxle differential 5 not only revolve, but also rotate due to the reasons of steering, different friction forces borne by the tires and the like, so that the first side gear 9 and the second side gear 10 are allowed to generate speed difference on the premise of not losing power, and the differential function is realized.
After the power input shaft 1 is combined with the driving gear 6, the inter-axle differential 5 is in a locking state, and at the moment, the power input shaft 1 is connected with the driving gear 6 in a synchronous rotating mode:
when the power input shaft 1 rotates, the planet carrier 11 and the driving gear 6 synchronously rotate along with the power input shaft;
the driving gear 6 drives the driven gear 7 to rotate, thereby driving the second output shaft;
since the driving gear 6 is connected with the first side gear 9 in a synchronous rotation manner, the planet gears 12 cannot rotate, so that the second side gear 10 has the first side gear 9 in a synchronous rotation manner;
the first half-shaft gear 9 rotates, thereby driving the first output shaft.
When the inter-axle differential 5 is in a locked state, in the running process of the vehicle, the planet wheels 12 in the inter-axle differential 5 only revolve but cannot rotate, so that the inter-axle differential 5 cannot play a role in differential, and the first output shaft and the second output shaft can output enough torque.
In the present embodiment, both the driving gear 6 and the driven gear 7 may be spur gears. The driving gear 6 and the driven gear 7 have the same structure and size, that is, the parameters such as the tooth number, the modulus, the pressure angle, the reference circle diameter and the addendum circle diameter are equal.
Since the driving gear 6 and the driven gear 7 have the same number of teeth, the gear train composed of the driving gear 6 and the driven gear 7 has a gear ratio of 1: 1.
To couple or decouple the power input shaft 1 to the driving gear 6, in the present embodiment, the power input shaft 1 may be coupled to or decoupled from the driving gear 6 by an inter-shaft differential lock.
As shown in fig. 3 and 4, the inter-axle differential lock includes a first lock portion 13 and a second lock portion 14, wherein the first lock portion 13 is connected to the power input shaft 1 for synchronous rotation.
The first locking portion 13 is slidably disposed on the power input shaft 1, the second locking portion 14 is fixedly disposed on the driving gear 6, and the first locking portion 13 is slidably engaged with or disengaged from the second locking portion 14, wherein when the first locking portion 13 is engaged with the second locking portion 14, the first locking portion 13 and the second locking portion 14 are synchronously and rotatably connected.
In this embodiment, the first locking portion 13 is sleeved on the power input shaft 1, and the first locking portion 13 is in clearance fit with the power input shaft 1. The second locking portion 14 may be integrated with the driving gear 6.
As shown in fig. 3 and 5, in order to connect the first locking portion 13 to the power input shaft 1 in a synchronous rotation manner, two symmetrical straight through grooves 15 may be formed on the side surface of the first locking portion 13, and a circular through hole 16 may be formed on the power input shaft 1.
A bolt which penetrates through the power input shaft 1 can be fixedly arranged in the through hole 16, and the bolt penetrates through the two through grooves 15 and is connected with the two through grooves in a sliding mode. The first locking portion 13 can rotate synchronously with the power input shaft 1 under the restriction and action of the latch.
As shown in fig. 3 and 4, in order to enable the first locking portion 13 and the second locking portion 14 to rotate synchronously after being combined, the first locking portion 13 may be provided with a gear shaping 17, and the second locking portion 14 may be provided with a slot 18 corresponding to the gear shaping 17. Correspondingly, a protrusion is formed between two adjacent gear teeth 17 on the first locking portion 13, and a groove corresponding to the protrusion is formed between two adjacent slots 18 on the second locking portion 14.
When the first locking portion 13 is combined with the second locking portion 14, the gear 17 is inserted into the insertion groove 18, and the protrusion is also inserted into the opposite groove.
The first locking portion 13 and the second locking portion 14 are combined to have the same function as a coupler.
In the present embodiment, in order to realize the combination or separation of the first locking portion 13 and the second locking portion 14, a toggle device 19 is disposed on the first locking portion 13, wherein the toggle device 19 is used for driving the first locking portion 13 to slide on the power input shaft 1.
The shifting device 19 includes a shift fork 20 disposed on the first locking portion 13 and a power unit for driving the shift fork 20 to move. Wherein, the outer side wall of the first locking part 13 can be provided with an insertion groove 21, and the fork head of the shifting fork 20 is inserted into the insertion groove 21.
When the inter-axle differential 5 needs to be locked, the power unit is started, the shifting fork 20 is driven to be acted by a force towards the second locking part 14, so that the first locking part 13 is close to the second locking part 14, and finally the combination between the first locking part 13 and the second locking part 14 is realized;
when it is desired to unlock the interaxle differential 5, the power unit is activated, which drives the shift fork 20 to receive a force acting away from the second locking portion 14, thereby causing the first locking portion 13 to be away from the second locking portion 14, and finally achieving separation between the first locking portion and the second locking portion 14.
Wherein, the power unit may comprise one of an electric push rod, a hydraulic cylinder or a pneumatic cylinder.
As shown in fig. 6, when the vehicle turns or travels on a rough road, the first locking portion 13 is separated from the second locking portion 14 by the action of the toggle device 19, thereby bringing the inter-axle differential 5 into the unlocked state.
As shown in fig. 7, in the event of a slip of the vehicle tire, the first locking portion 13 is engaged with the second locking portion 14 by the toggle device 19, thereby bringing the inter-axle differential 5 into a locked state.
The axle driving device has strong operability and can be freely adjusted according to road conditions and tire rotating speeds.
As shown in fig. 8, in the present embodiment, a drive axle assembly 22 is also provided, which includes the above-mentioned axle driving device.
The axle assembly 22 includes a housing with an axle drive disposed therein.
Referring to fig. 1 and 8, to simplify the structure and reduce the occupied space, the second axle 4 may be directly installed in a housing of the transaxle assembly 22, wherein wheels at both ends of the second axle 4 are located outside the housing.
In the present embodiment, the second axle 4 may be a wheel reduction axle.
The first power take-off shaft 2 extends outside the housing, thereby facilitating connection to the first axle. The first axle may be provided with a reversing component, such as a reversing gear, so that the first power output shaft 2 can output the same steering direction as the second power output shaft 3.
In this embodiment, a vehicle is also proposed, comprising the axle drive arrangement as described above.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. An axle driving device is characterized by comprising a power input shaft, a first power output shaft for driving a first axle and a second power output shaft for driving a second axle;
an inter-axle differential is arranged between the power input shaft and the first power output shaft;
one output end of the interaxial differential is connected with the first power output shaft, the other output end of the interaxial differential is provided with a driving gear, and the second power output shaft is provided with a driven gear meshed with the driving gear;
the power input shaft is combined with or separated from the driving gear so as to correspondingly lock or unlock the inter-axle differential.
2. The axle drive arrangement of claim 1, wherein the inter-axle differential includes a housing, a first side gear, and a second side gear;
a planet carrier and a planet wheel rotatably arranged on the planet carrier are arranged in the shell, and the planet carrier is synchronously and rotatably connected with the power input shaft;
the first side gear and the second side gear are both meshed with the planet gears;
the first half shaft gear is connected with the driving gear in a synchronous rotating mode, and the second half shaft gear is fixedly connected with the first power output shaft.
3. The axle drive of claim 2, wherein the planet gears are a plurality of planet gears and are distributed in an annular array about a central axis of the planet carrier.
4. The axle drive arrangement of claim 1, wherein the power input shaft is coupled to or decoupled from the drive gear via an inter-axle differential lock;
the inter-axle differential lock comprises a first locking part and a second locking part, wherein the first locking part is in synchronous rotating connection with the power input shaft;
the first locking part is arranged on the power input shaft in a sliding mode, the second locking part is fixedly arranged on the driving gear, and the first locking part is combined with or separated from the second locking part by sliding;
when the first locking part is combined with the second locking part, the first locking part and the second locking part are synchronously and rotatably connected.
5. The axle drive arrangement of claim 4, wherein the first locking portion has a gear shaping disposed thereon and the second locking portion has a socket disposed thereon that corresponds to the gear shaping.
6. The axle drive of claim 4, wherein the first locking portion is provided with a toggle arrangement;
the toggle device is used for driving the first locking part to slide on the power input shaft.
7. The axle driving device according to claim 6, wherein the striking device comprises a fork disposed on the first locking portion and a power unit for driving the fork to move.
8. The axle drive of claim 7, wherein the power unit comprises one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.
9. A drive axle assembly comprising an axle drive arrangement according to any one of claims 1 to 8.
10. A vehicle comprising an axle drive arrangement according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762644.9U CN210770098U (en) | 2019-10-18 | 2019-10-18 | Axle driving device, drive axle assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921762644.9U CN210770098U (en) | 2019-10-18 | 2019-10-18 | Axle driving device, drive axle assembly and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN210770098U true CN210770098U (en) | 2020-06-16 |
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| CN201921762644.9U Active CN210770098U (en) | 2019-10-18 | 2019-10-18 | Axle driving device, drive axle assembly and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116424033A (en) * | 2023-05-17 | 2023-07-14 | 一汽解放汽车有限公司 | Auto double drive axle |
-
2019
- 2019-10-18 CN CN201921762644.9U patent/CN210770098U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116424033A (en) * | 2023-05-17 | 2023-07-14 | 一汽解放汽车有限公司 | Auto double drive axle |
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