Drive axle and vehicle

Abstract

The drive axle and the vehicle comprise at least one gear-position gear set and at least one gear shifting mechanism, at least one gear shifting mechanism is located between the gear-position gear set and wheels of the vehicle, and at least one part of the gear shifting mechanism is located at an axle package corner of the drive axle. According to the drive axle provided by the embodiment of the invention, at least one part of the gear shifting mechanism is arranged at the corner of the axle package, so that the space utilization rate is increased, and the structural layout of the drive axle is optimized.

Description

Technical Field

[0001] This disclosure relates to a drive axle and a vehicle. Background Technology

[0002] In related technologies, the number of gears in a single-motor multi-speed drive axle is usually 3 or 4, requiring at least two sets of shifting mechanisms, which results in a large size and occupies a lot of layout space. Summary of the Invention

[0003] This disclosure provides a drive axle and vehicle that at least partially solve the above-mentioned problems.

[0004] The first aspect of this disclosure provides a drive axle, comprising:

[0005] At least one gear set and at least one shifting mechanism, at least one of the at least one shifting mechanism being located between the gear set and the wheel of the vehicle, and at least a portion of the shifting mechanism being located at the axle corner of the drive axle.

[0006] In conjunction with the first aspect above, in one possible implementation, the at least one gear set includes a first gear set, a second gear set, and a third gear set, and the at least one shifting mechanism includes a first shifting mechanism and a second shifting mechanism. The first shifting mechanism is located between the first gear set and the second gear set, the second shifting mechanism is located between the third gear set and the vehicle wheel, and at least a portion of the second shifting mechanism is located at the axle corner of the drive axle.

[0007] In conjunction with the first aspect above, in one possible implementation, the first gear set includes a first driving gear and a first driven gear, the second gear set includes a second driving gear and a second driven gear, the third gear set includes a third driving gear and a third driven gear, the first shifting mechanism is located between the first driven gear and the second driven gear, and the second shifting mechanism is located between the third driven gear and the vehicle wheel.

[0008] In conjunction with the first aspect above, in one possible implementation, the drive axle further includes a planetary reducer and a differential, wherein the input end of the planetary reducer is selectively connected to the first-gear driven gear, the second-gear driven gear, and the third-gear driven gear, and the output end of the planetary reducer is connected to the differential.

[0009] In conjunction with the first aspect above, in one possible implementation, the planetary reducer includes a sun gear shaft and a planet carrier, wherein the first-gear driven gear, the second-gear driven gear, and the third-gear driven gear are all mounted on the sun gear shaft, and the planet carrier is connected to the differential.

[0010] In conjunction with the first aspect above, in one possible implementation, the drive axle further includes a power source and a reduction gear assembly, wherein the input end of the reduction gear assembly is connected to the power source, and the output end of the reduction gear assembly is connected to the first gear, the second gear, and the third gear.

[0011] In conjunction with the first aspect above, in one possible implementation, the deceleration assembly includes a deceleration drive gear and a deceleration driven gear, the deceleration drive gear being connected to a power source, and the deceleration driven gear being connected to a first-gear drive gear, a second-gear drive gear, and a third-gear drive gear.

[0012] In conjunction with the first aspect above, in one possible implementation, the reduction passive gear is positioned between the second-gear drive gear and the third-gear drive gear.

[0013] In conjunction with the first aspect above, in one possible implementation, the power source includes an electric motor.

[0014] In conjunction with the first aspect mentioned above, in one possible implementation, the first gear drive gear, the second gear drive gear, and the third gear drive gear are arranged sequentially.

[0015] In conjunction with the first aspect above, in one possible implementation, the reduction drive gear, the reduction driven gear, the first gear drive gear, the second gear drive gear, and the third gear drive gear all have a gap between themselves and the oil level of the lubricating oil disposed in the drive axle housing.

[0016] In conjunction with the first aspect mentioned above, in one possible implementation, there is a gap between the third-speed driven gear and the oil level of the lubricating oil disposed in the drive axle housing.

[0017] The drive axle provided in this disclosure improves space utilization and optimizes the structural layout of the drive axle by arranging at least a portion of the shifting mechanism at the corner of the axle package.

[0018] This disclosure also provides a vehicle including a drive axle as provided in any of the above embodiments.

[0019] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this disclosure. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0021] To gain a more complete understanding of this disclosure and its beneficial effects, the following description will be made in conjunction with the accompanying drawings, wherein the same reference numerals denote the same parts in the following description.

[0022] Figure 1 This is a schematic diagram of the drive bridge according to some embodiments;

[0023] Figure 2 This is a schematic diagram of the first gear power transmission route of a drive axle according to some embodiments;

[0024] Figure 3 This is a schematic diagram of the second gear power transmission route of a drive axle according to some embodiments;

[0025] Figure 4 This is a schematic diagram of the three-speed power transmission route of a drive axle according to some embodiments;

[0026] Figure 5 This is a schematic diagram of the drive bridge according to some other embodiments;

[0027] Figure 6 This is a schematic diagram of the drive bridge according to some other embodiments;

[0028] Figure 7 This is a schematic diagram of the drive bridge according to some other embodiments. Detailed Implementation

[0029] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the protection scope of this disclosure.

[0030] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0032] Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "electrical connection," and "communication" should be interpreted broadly. For example, they can refer to fixed electrical connections, detachable electrical connections, or integral electrical connections. Connections can be direct or indirect through an intermediate medium, and can be internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0034] In embodiments of this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in embodiments of this disclosure is not limited. Functions may be performed in the order shown or discussed, or may be performed substantially simultaneously or in reverse order depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0035] In this disclosure, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0036] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0037] In some embodiments, such as Figure 1-7 As shown, this disclosure provides a drive axle, including:

[0038] At least one gear set and at least one shifting mechanism, at least one of the shifting mechanisms being located between the gear set and the wheel of the vehicle, and at least a portion of the shifting mechanism being located at the axle corner 23 of the drive axle.

[0039] The drive axle provided in this embodiment improves space utilization and optimizes the structural layout of the drive axle by arranging at least a portion of the shifting mechanism at the axle corner 23.

[0040] In the above embodiments, by arranging at least a portion of the shift mechanism at the axle housing corner 23, the inertia of the layout of the drive axle shift mechanism in the input shaft or intermediate shaft area in the related technology is broken. The shift structure that originally occupied the Y-direction space is transferred to the corner 23 area formed by the inner wall of the axle housing and the end of the half shaft 20. This area is often regarded as "invalid space" and reserved with redundant gaps in related designs. The solution of this disclosure transforms this space into a functional space through structural reconstruction, reduces the overall Y-direction size of the reducer, and provides key space margin for the arrangement of key chassis accessories such as airbags, air suspension, and battery packs.

[0041] In conjunction with the first aspect above, in one possible implementation, at least one gear set includes a first gear set, a second gear set, and a third gear set, and at least one shifting mechanism includes a first shifting mechanism 16 and a second shifting mechanism 12. The first shifting mechanism 16 is located between the first gear set and the second gear set, and the second shifting mechanism 12 is located between the third gear set and the vehicle wheel. At least a portion of the second shifting mechanism 12 is located at the axle corner 23 of the drive axle.

[0042] This scheme achieves switching between three fixed reduction ratios by setting up three gear sets and working in conjunction with a dual shifting mechanism. The first shifting mechanism 16 is arranged between the first-gear driven gear 14 and the second-gear driven gear 18 to switch between the first and second gear power paths; the second shifting mechanism 12 is arranged between the third-gear driven gear 19 and the wheel, and its axial projection is embedded in the projection of the axle housing angle 23, thereby shortening the Y-axis dimension.

[0043] In conjunction with the first aspect mentioned above, in one possible implementation, the first gear set includes a first-gear drive gear 9 and a first-gear driven gear 14, the second gear set includes a second-gear drive gear 10 and a second-gear driven gear 18, the third gear set includes a third-gear drive gear 11 and a third-gear driven gear 19, the first shifting mechanism 16 is located between the first-gear driven gear 14 and the second-gear driven gear 18, and the second shifting mechanism 12 is located between the third-gear driven gear 19 and the vehicle's wheels.

[0044] In this structure, the first gear drive gear 9, the second gear drive gear 10, and the third gear drive gear 11 can all rotate synchronously with the same reduction driven gear 8 via splines, thus achieving coaxial power input; while the first gear driven gear 14, the second gear driven gear 18, and the third gear driven gear 19 are independently supported on the sun gear shaft 5 by bearings, and only participate in power transmission when the shifting mechanism is engaged.

[0045] In conjunction with the first aspect mentioned above, in one possible implementation, the drive axle further includes a planetary reducer and a differential 6. The input end of the planetary reducer is selectively connected to the first-gear driven gear 14, the second-gear driven gear 18, and the third-gear driven gear 19, and the output end of the planetary reducer is connected to the differential 6.

[0046] The planetary reducer serves as a reduction unit, with the sun gear shaft 5 acting as the common rotating shaft for the three sets of driven gears, enabling power transmission for each gear. The planet carrier 4 and the differential 6 housing can be rigidly connected, outputting power to the left and right half shafts 20.

[0047] In conjunction with the first aspect mentioned above, in one possible implementation, the planetary reducer includes a sun gear shaft 5 and a planet carrier 4, with a first-gear driven gear 14, a second-gear driven gear 18, and a third-gear driven gear 19 all mounted on the sun gear shaft 5, and the planet carrier 4 connected to the differential 6.

[0048] The sun gear shaft 5 is a hollow structure, fitted onto the half shaft 20, while the three external sets of driven gears can be independently installed through bearings, ensuring that each gear can rotate freely in the non-working state without power coupling.

[0049] The first shifting mechanism 16 is mounted on the sun gear shaft 5 and located between the first-gear driven gear 14 and the second-gear driven gear 18, and is used to switch between first and second gear; the second shifting mechanism 12 is mounted on the sun gear shaft 5 and is arranged between the third-gear driven gear 19 and the wheel, and is used to switch between third gear.

[0050] The sun gear shaft 5 is mounted on the half-shaft 20, meaning that the first shift mechanism 16 and the second shift mechanism 12 are located at the half-shaft 20, which allows for a more compact drive axle structure. Compared to the first shift mechanism 16 and the second shift mechanism 12 being located on two separate shafts (the shaft where the drive gear is located), this reduces the space occupied and the size of the drive axle.

[0051] In conjunction with the first aspect mentioned above, in one possible implementation, the drive axle further includes a power source and a reduction gear assembly. The input end of the reduction gear assembly is connected to the power source, and the output end of the reduction gear assembly is connected to the first gear drive gear 9, the second gear drive gear 10, and the third gear drive gear 11.

[0052] The power source is connected to the three-speed gear set via a reduction assembly, which can have one, two, or other reduction stages. The reduction assembly transmits power from the power source to the first-speed drive gear 9, the second-speed drive gear 10, and the third-speed drive gear 11.

[0053] In conjunction with the first aspect mentioned above, in one possible implementation, the reduction assembly includes a reduction drive gear 7 and a reduction driven gear 8. The reduction drive gear 7 is connected to a power source, and the reduction driven gear 8 is connected to a first-gear drive gear 9, a second-gear drive gear 10, and a third-gear drive gear 11.

[0054] First-level reduction can be achieved through the reduction drive gear 7 and the reduction driven gear 8. Combined with the gear set and planetary reducer, the drive axle can achieve three-level reduction, and all three gears are three-level reductions. The number of shafts is small and the power chain is simplified, which can achieve efficient transmission. At the same time, there are fewer parts, better reliability, and the X-axis space of the drive axle can be greatly freed up.

[0055] In conjunction with the first aspect mentioned above, in one possible implementation, the reduction passive gear 8 is positioned between the second-gear drive gear 10 and the third-gear drive gear 11.

[0056] This arrangement aligns the axial center of the reduction driven gear 8 with the meshing centers of the second-gear drive gear 10 and the third-gear drive gear 11. Simultaneously, this position prevents the reduction driven gear 8 from contacting the lubricating oil surface 21, thus avoiding violent oil churning during high-speed rotation.

[0057] In conjunction with the first aspect mentioned above, in one possible implementation, the power source includes an electric motor 1.

[0058] The power source can be any suitable power device, such as motor 1, which drives the vehicle.

[0059] In conjunction with the first aspect mentioned above, in one possible implementation, the first gear drive gear 9, the second gear drive gear 10, and the third gear drive gear 11 are arranged sequentially.

[0060] The three driving gears are arranged in a stepped manner along the axis of the reduction driven gear 8, with uniform spacing, to ensure that the gear meshing area does not overlap during the shifting process and to avoid mis-meshing.

[0061] In conjunction with the first aspect mentioned above, in one possible implementation, the reduction drive gear 7, the reduction driven gear 8, the first gear drive gear 9, the second gear drive gear 10, and the third gear drive gear 11 all have a gap between themselves and the oil level 21 of the lubricating oil provided in the drive axle housing.

[0062] That is, these gears do not directly contact the oil level 21 of the lubricating oil in the drive axle housing, and the lubricating oil will not be agitated when these gears rotate.

[0063] The speeds of the reduction drive gear 7, reduction driven gear 8, first gear drive gear 9, second gear drive gear 10, and third gear drive gear 11 are relatively high. By separating these gears from the lubricating oil surface 21 in the gearbox, oil churning losses can be effectively avoided, and transmission efficiency can be improved.

[0064] In conjunction with the first aspect mentioned above, in one possible implementation, there is a gap between the third-speed driven gear 19 and the oil level 21 of the lubricating oil disposed in the drive axle housing.

[0065] That is, the third-speed driven gear 19 does not directly contact the oil level 21 of the lubricating oil in the drive axle housing, and will not agitate the lubricating oil when it rotates.

[0066] The following is in conjunction with the appendix Figure 1-7 The drive bridge of an embodiment of this disclosure will be described.

[0067] like Figure 1 As shown, a drive axle includes: a motor 1, a reduction gear assembly, a first gear assembly, a second gear assembly, a third gear assembly, two sets of shifting mechanisms, a planetary reducer, and a differential assembly.

[0068] The reduction drive gear 7 is connected to the motor shaft via a spline or is coaxial with the motor shaft. The reduction drive gear 7 and the reduction driven gear 8 are in constant mesh. The reduction driven gear 8 is coaxially arranged with the first gear drive gear 9, the second gear drive gear 10, and the third gear drive gear 11 and rotates at the same speed.

[0069] The sun gear shaft 5 is fitted onto the half-shaft 20. The gear hubs of the first shifting mechanism 16 and the second shifting mechanism 12 are connected to the sun gear shaft 5 via splines. The first-gear driven gear 14, the second-gear driven gear 18, and the third-gear driven gear 19 are fixedly connected to the first, second, and third-gear engagement teeth 15, 17, and 19, respectively. The first, second, and third-gear driven gears are fitted onto the sun gear shaft 5 and are connected to the first, second, and third-gear driving gears 9, 10, and 11 for transmission. By adjusting the sliding sleeve of the first shifting mechanism 16, it can selectively couple with one of the first or second-gear engagement teeth, or it can choose not to couple with the engagement tooth. When the sliding sleeve is coupled with the engagement tooth, it can drive the driven gear of the corresponding gear. By adjusting the sliding sleeve of the second shifting mechanism 12, it can selectively couple or decouple with the third-gear engagement tooth 13. When the sliding sleeve is coupled with the third-gear engagement tooth, it can drive the third-gear driven gear. The outer edge of the gear ring 3 is connected to the housing by splines or other means. The planet gear 3 meshes with the gear ring 2 and the sun gear. The planet gear 3 is mounted on the planet carrier 4 via planet shafts. The planet carrier 4 shares a housing with the differential 6. The half shaft 20 is connected to the differential 6 via splines.

[0070] like Figure 2 As shown, in first gear, the sliding sleeve on the first shifting mechanism 16 is coupled with the first gear engagement gear 15, while the second shifting mechanism is in a decoupled state. The power of the motor 1 drives the reduction driven gear 8 via the reduction drive gear 7, and then transmits the power to the first drive gear 9 on the second shaft (the shaft where the first drive gear 9, the second drive gear 10, and the third drive gear 11 are located). After being reduced by the first drive gear 9 and the first driven gear 14, two-stage reduction is completed. The first driven gear 14 transmits the power to the sun gear shaft 5 through the first shifting mechanism 16, and then reduces the power again through the planetary reducer, thus completing three-stage reduction. The planet carrier 4 transmits the power to the differential 6, and finally outputs it to the wheel end through the half shaft 20.

[0071] like Figure 3 As shown, in second gear, the sliding sleeve on the first shifting mechanism 16 is coupled with the second gear engagement gear 17, while the second shifting mechanism is decoupled. The power of the motor 1 drives the reduction driven gear 8 via the reduction drive gear 7, and then transmits the power to the second gear drive gear 10 on the second shaft. After being reduced by the second gear drive gear 10 and the second gear driven gear 18, two-stage reduction is completed. The second gear driven gear 18 transmits the power to the sun gear shaft 5 through the first shifting mechanism 16, and then reduces the power again through the planetary reducer, thus completing three-stage reduction. The planet carrier 4 transmits the power to the differential 6, and finally outputs it to the wheel end through the half shaft 20.

[0072] like Figure 4As shown, in the third gear state, the first shifting mechanism 16 is in a decoupled state, and the sliding sleeve on the second shifting mechanism 12 is coupled with the third gear engagement gear 13. The power of the motor 1 drives the reduction driven gear 8 through the reduction drive gear 7, and then transmits the power to the third gear drive gear 11 on the second shaft. After the third gear drive gear 11 and the third gear driven gear 19 reduce the speed, two-stage reduction is completed. The third gear driven gear 19 transmits the power to the sun gear shaft 5 through the second shifting mechanism 12, and then reduces the speed again through the planetary reducer. Thus, three-stage reduction is completed. The planet carrier 4 transmits the power to the differential 6, and finally outputs it to the wheel end through the half shaft 20.

[0073] like Figure 5 As shown in the figure, the oil level 21 is as follows. Due to the small number of shafts and the fact that the high-speed gears are all located on the first shaft (the shaft where the reduction drive gear 7 is located) and the second shaft, the reduction drive gear 7 and the reduction driven gear 8 can avoid oil churning losses. The planetary reducer, the first-speed driven gear 14, and the second-speed driven gear 18 at the half-shaft have low speeds, resulting in minimal oil churning losses. Furthermore, oil churning losses can be further reduced by setting up oil guide grooves. With this configuration, the first, second, and third gears are all three-stage reductions, and the high-speed gears have no oil churning, ultimately achieving efficient operation of the transmission system. In addition, due to the small number of shafts, this architecture can significantly reduce the X-axis dimensions, providing ample space for the arrangement of other chassis accessories.

[0074] like Figure 6 As shown, for a high-speed ratio transmission scheme, to ensure the reliability of the first-stage reduction gear and to increase the center distance of the first-stage reduction gear, interference between the motor housing and other transmission components is avoided. The second-speed driving gear 10, the reduction driven gear 8, and the third-speed driving gear 11 are arranged adjacent to each other, and the second shifting mechanism 12 is placed outside the third-speed driven gear 19 at the half-shaft 20.

[0075] like Figure 7 As shown, the second shift mechanism 12 is located at the axle housing corner 23 of the axle housing 24. This arrangement effectively utilizes the space within the corner 23 of the axle housing 24 within the inclined surface of the axle housing window, reduces the Y-axis dimension of the front axle reducer, and provides ample space for the placement of accessories such as the airbag 22, making it suitable for more vehicle models.

[0076] The drive axle provided in this embodiment improves space utilization and optimizes the structural layout of the drive axle by arranging at least a portion of the shifting mechanism at the axle corner 23.

[0077] This disclosure also provides a vehicle including a drive axle as provided in any of the above embodiments.

[0078] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. A drive axle, characterized in that, include: At least one gear set with multiple gear positions; as well as At least one shifting mechanism, at least one of which is located between the gear set and the wheel of the vehicle, and at least a portion of the shifting mechanism is located at the axle corner of the drive axle.

2. The drive axle according to claim 1, characterized in that, The at least one gear set includes: a first gear set, a second gear set, and a third gear set; the at least one shifting mechanism includes: a first shifting mechanism and a second shifting mechanism; the first shifting mechanism is located between the first gear set and the second gear set; the second shifting mechanism is located between the third gear set and the vehicle wheel; and at least a portion of the second shifting mechanism is located at the axle corner of the drive axle.

3. The drive axle according to claim 2, characterized in that, The first gear set includes a first-gear drive gear and a first-gear driven gear; the second gear set includes a second-gear drive gear and a second-gear driven gear; the third gear set includes a third-gear drive gear and a third-gear driven gear; the first shifting mechanism is located between the first-gear driven gear and the second-gear driven gear; and the second shifting mechanism is located between the third-gear driven gear and the vehicle's wheel.

4. The drive axle according to claim 3, characterized in that, The drive axle further includes a planetary reducer and a differential. The input end of the planetary reducer is selectively connected to the first-gear driven gear, the second-gear driven gear, and the third-gear driven gear. The output end of the planetary reducer is connected to the differential.

5. The drive axle according to claim 4, characterized in that, The planetary reducer includes a sun gear shaft and a planet carrier. The first-speed driven gear, the second-speed driven gear, and the third-speed driven gear are all mounted on the sun gear shaft. The planet carrier is connected to the differential.

6. The drive axle according to claim 4, characterized in that, The drive axle further includes a power source and a reduction gear assembly. The input end of the reduction gear assembly is connected to the power source, and the output end of the reduction gear assembly is connected to the first gear, the second gear, and the third gear.

7. The drive axle according to claim 6, characterized in that, The deceleration assembly includes a deceleration drive gear and a deceleration driven gear. The deceleration drive gear is connected to a power source, and the deceleration driven gear is connected to the first gear drive gear, the second gear drive gear, and the third gear drive gear.

8. The drive axle according to claim 7, characterized in that, The reduction passive gear is positioned between the second-gear drive gear and the third-gear drive gear.

9. The drive axle according to claim 6, characterized in that, The power source includes: an electric motor.

10. The drive axle according to claim 6, characterized in that, The first gear, second gear, and third gear are arranged in sequence.

11. The drive axle according to claim 7, characterized in that, The reduction drive gear, reduction driven gear, first gear drive gear, second gear drive gear, and third gear drive gear all have gaps between them and the oil level of the lubricating oil in the drive axle housing.

12. The drive axle according to claim 3, characterized in that, There is a gap between the third-speed driven gear and the oil level of the lubricating oil in the drive axle housing.

13. A vehicle, characterized in that, include: The drive axle as described in any one of claims 1-12.

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