Vehicle, drive axle and axle housing assembly

Abstract

The present application relates to a vehicle, a drive axle and an axle housing assembly. The axle housing assembly includes an axle housing and a filter. Compared with the method in the related art in which the oil outlet pipe is arranged horizontally and the oil inlet pipe is arranged downward along the tangent direction of the driven bevel gear, the oil outlet in the present application is arranged at the bottom of the filter body and below the oil inlet, that is, the filter body is placed in the chamber in the vertical direction, and the filtration is achieved by relying on the gravity of the lubricating oil itself, without the need for auxiliary devices such as oil pumps to increase the pressure of the filtration method. When running on a hilly road, even if the filter tilts a certain angle with the vehicle, the oil outlet will always be located at the bottom of the filter body, which can ensure that the lubricating oil inside the filter body can be discharged smoothly, and can prevent the defect that the lubricating oil cannot be discharged, thereby reducing the failure rate of the drive axle, improving the performance of the drive axle, and extending the service life.

Description

Technical Field

[0001] The present application relates to the technical field of drive axles, and in particular to a vehicle, a drive axle, and an axle housing assembly. Background Art

[0002] During vehicle operation, due to the special nature of metal components, friction pairs such as gears, bearings, and bushings are constantly in contact and wear. Iron filings from this wear mix into the lubricant, seriously affecting the cleanliness of the lubricant within the drive axle. Failure to promptly replace the contaminated lubricant will reduce its lubricating effectiveness, severely impacting the lifespan of the drive axle assembly. However, regular lubricant replacement not only increases vehicle operating costs and maintenance time, but also pollutes the environment if the waste lubricant is improperly disposed of.

[0003] To continuously improve the cleanliness of the lubricating oil in the drive axle and effectively extend the lubricating oil replacement cycle, an effective method is to install a filter on the drive axle. During the operation of the drive axle, the lubricating oil inside the axle housing splashes as the driven bevel gear rotates. The oil inlet of the filter is arranged along the path of the lubricating oil flow. Generally, the oil inlet pipe of the filter is arranged in the lower half of the base and along the tangent direction of the driven bevel gear. In this way, the lubricating oil enters the interior of the filter under the drive of the driven bevel gear under pressure. It flows through the filter screen by inertia, thus achieving the filtration of the lubricating oil. The lubricating oil after being filtered by the filter enters the oil outlet chamber, and then returns to the interior of the axle housing chamber through the oil outlet pipe in a horizontal direction, and is reused by the drive axle.

[0004] However, when the vehicle is traveling on a hill in a mountainous area, for example, the drive axle may easily malfunction due to insufficient lubricating oil, thereby reducing the performance of the drive axle and shortening its service life. Summary of the Invention

[0005] Based on this, it is necessary to overcome the defects of the existing technology and provide a vehicle, drive axle and axle housing assembly, which can reduce the failure rate of the drive axle, improve the performance of the drive axle, and extend the service life.

[0006] An axle housing assembly, comprising:

[0007] an axle housing, wherein the axle housing is provided with a cavity; and

[0008] A filter, the filter comprising a filter body and a mounting member connected to the filter body, the mounting member being arranged at the top of the bridge housing, the filter body being arranged inside the bridge housing, the top of the filter body being provided with an oil inlet communicating with the chamber, the bottom of the filter body being provided with an oil outlet communicating with the chamber, the oil outlet being located below the oil inlet, so that the lubricating oil entering the interior of the filter body through the oil inlet can flow through the filter body under the action of its own gravity and be discharged outwardly into the chamber through the oil outlet.

[0009] In one embodiment, the bridge housing assembly further includes an oil baffle plate spaced apart below the filter, and the oil baffle plate is opposite to the oil outlet in the vertical direction.

[0010] In one embodiment, the filter body includes an outer shell, a filter element arranged inside the outer shell, and a bracket connected to the outer shell; the filter element is installed on the bracket, the filter element is spaced apart from the inner wall of the outer shell and forms a first channel connected to the oil inlet, and a second channel connected to the oil outlet is formed in the middle of the filter element.

[0011] In one embodiment, a first mounting hole communicating with the chamber is provided on the top of the bridge housing, and the mounting member is detachably disposed at the first mounting hole.

[0012] In one embodiment, the mounting member is detachably connected to the filter body, and the filter body can pass through the first mounting hole to the outside of the axle housing or enter the inside of the axle housing.

[0013] In one embodiment, the bridge housing includes a rear cover and an oil drain plug connected to the rear cover; the bottom of the rear cover is provided with an oil leakage hole connected to the chamber, and the oil drain plug is detachably arranged at the oil leakage hole; when the vehicle is placed on a horizontal surface in a normal posture, the oil leakage hole is at the bottom of the bridge housing.

[0014] A drive axle includes the axle housing assembly and a main reducer assembly connected to the axle housing. The main reducer assembly includes a driven bevel gear, which is arranged inside the chamber. When the driven bevel gear rotates, it can drive the lubricating oil inside the chamber to enter the interior of the filter body through the oil inlet.

[0015] In one embodiment, the drive axle also includes a through-shaft logic assembly, which is connected to the main reducer assembly and is also connected to the bridge housing; the driven bevel gear and the filter are respectively located on opposite sides of the through-shaft logic assembly.

[0016] In one embodiment, the driven bevel gear and the filter are spaced apart in the left-right direction of the axle housing, and a distance L between a center line of the driven bevel gear and a center line of the filter in the left-right direction is ≥100 mm.

[0017] A vehicle comprises the drive axle.

[0018] During use of the aforementioned vehicle, drive axle, and axle housing assembly, lubricating oil within the axle housing, driven by the driven bevel gear of the final reducer assembly, can splash into the oil inlet. The lubricating oil entering the filter body through the oil inlet is filtered by the filter body under its own gravity and then discharged into the chamber through the oil outlet, thereby being reused. Furthermore, compared to the related art method of arranging the oil outlet pipe horizontally and the oil inlet pipe downwardly along the tangent of the driven bevel gear, the oil outlet in the present application is arranged at the bottom of the filter body and below the oil inlet. That is, the filter body is placed vertically in the chamber, relying on the lubricating oil's own gravity to achieve filtration, without the need for auxiliary devices such as oil pumps to increase pressure. When operating on a hilly road, even if the filter tilts at a certain angle with the vehicle, the oil outlet remains at the bottom of the filter body, ensuring smooth discharge of lubricating oil from the filter body and preventing the defect of oil being unable to be discharged. This reduces the failure rate of the drive axle, improves the performance of the drive axle, and extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a drive axle according to an embodiment of the present application.

[0020] Figure 2 This is a diagram of the internal structure of a drive axle according to an embodiment of the present application.

[0021] Figure 3 This is a structural diagram of a filter according to an embodiment of the present application.

[0022] Figure 4 for Figure 3 Top view of the structure shown.

[0023] Figure 5 This is a posture diagram of the drive axle according to one embodiment of the present application when the vehicle is normally placed on a horizontal plane.

[0024] 10. Bridge housing; 11. First mounting hole; 12. Rear cover; 121. Oil leak hole; 13. Oil drain plug; 20. Filter; 21. Filter body; 211. Oil inlet; 212. Oil outlet; 213. Housing; 214. Filter element; 2141. Second channel; 215. Bracket; 2151. First connecting plate; 2152. Second connecting plate; 2153. Connecting pipe; 216. First channel; 217. Second mounting hole; 22. Mounting part; 221. First thread; 222. Toggle part; 223. Connecting part; 30. Main reducer assembly; 31. Driven bevel gear; 40. Oil baffle; 50. Through-shaft logic assembly. DETAILED DESCRIPTION

[0025] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0026] As described in the background technology, in the prior art, when a vehicle is traveling, for example, in a climbing condition in a mountainous area, the drive axle is prone to malfunction due to insufficient lubricating oil, resulting in reduced performance and service life of the drive axle. The inventors have discovered through research that the reason for this problem is that the oil outlet pipe of the pressure filter is usually arranged horizontally. When a vehicle is traveling, for example, in a climbing condition in a mountainous area, the outlet pipe of the horizontally arranged pressure filter will be slightly tilted upward. The tilt angle is determined by the slope of the road surface. The greater the slope, the greater the upward tilt angle of the oil outlet pipe, resulting in the filter being unable to discharge oil normally, which in turn easily causes drive axle failure, resulting in reduced performance and reduced service life of the drive axle.

[0027] Based on the above reasons, the present application provides a technical solution for a vehicle, a drive axle and an axle housing assembly, which can reduce the failure rate of the drive axle, improve the performance of the drive axle, and extend the service life.

[0028] See Figures 1 to 3 , Figure 1 The figure shows a structural diagram of a drive axle according to an embodiment of the present application. Figure 2 The internal structure diagram of the drive axle according to one embodiment of the present application is shown. Figure 3A structural diagram of the filter 20 of an embodiment of the present application is shown. An embodiment of the present application provides an axle housing assembly, which includes a axle housing 10 and a filter 20. The axle housing 10 is provided with a chamber. The filter 20 includes a filter body 21 and a mounting member 22 connected to the filter body 21. The mounting member 22 is arranged at the top of the axle housing 10. The filter body 21 is arranged inside the axle housing 10, and the top of the filter body 21 is provided with an oil inlet 211 connected to the chamber, and the bottom of the filter body 21 is provided with an oil outlet 212 connected to the chamber. The oil outlet 212 is located below the oil inlet 211, so that the lubricating oil entering the interior of the filter body 21 through the oil inlet 211 can flow through the filter body 21 under the action of its own gravity and be discharged outwardly into the chamber through the oil outlet 212.

[0029] During use of the above-mentioned axle housing assembly, the lubricating oil inside the axle housing 10 can splash into the oil inlet 211 under the drive of the driven bevel gear 31 of the main reducer assembly 30. The lubricating oil that enters the interior of the filter body 21 through the oil inlet 211 is filtered by the filter body 21 under the action of its own gravity and is discharged to the outside of the chamber through the oil outlet 212, so that it can be reused. In addition, compared with the related art in which the oil outlet pipe is arranged horizontally and the oil inlet pipe is arranged downward along the tangential direction of the driven bevel gear 31, the oil outlet 212 in the present application is arranged at the bottom of the filter body 21 and below the oil inlet 211, that is, the filter body 21 is placed in the chamber in the vertical direction, and relies on the gravity of the lubricating oil to achieve filtration, and does not require auxiliary devices such as oil pumps to increase the pressure of the filtration method. When running on a hilly road section, even if the filter 20 tilts a certain angle with the vehicle, the oil outlet 212 will always be located at the bottom of the filter body 21, which can ensure that the lubricating oil inside the filter body 21 can be discharged smoothly, and can prevent the defect of the lubricating oil being unable to be discharged, thereby reducing the failure rate of the drive axle, improving the performance of the drive axle, and extending the service life.

[0030] See also Figures 1 to 3 In one embodiment, the axle housing assembly further includes an oil baffle 40 spaced apart below the filter 20. The oil baffle 40 is positioned vertically opposite the oil outlet 212. Thus, the oil baffle 40 acts as a barrier below the oil outlet 212, preventing the lubricating oil splashed from the driven bevel gear 31 from flowing back into the filter body 21 through the oil outlet 212, thereby avoiding affecting the normal operation of the filter 20. Furthermore, since the oil baffle 40 is spaced apart from the bottom of the filter 20, the lubricating oil filtered by the filter 20 can be discharged normally through the oil outlet 212 without being affected by the oil baffle 40.

[0031] See also Figures 1 to 3In some embodiments, the filter 20 is located on the side of the axle housing 10. The filter body 21 is positioned adjacent to the sidewall of the axle housing 10. Specifically, the filter body 21 is positioned adjacent to the rear end of the axle housing 10, i.e., the rear cover 12 of the axle housing 10. This arrangement of the filter 20 is rational, occupies minimal space, and does not interfere with various components within the axle housing 10, such as the final drive assembly 30.

[0032] It should be noted that the "oil baffle 40" in this embodiment can be "a part of the bridge housing 10", that is, the "oil baffle 40" and the "other parts of the bridge housing 10" are manufactured as one piece; it can also be an independent component that can be separated from the "other parts of the bridge housing 10", that is, the "oil baffle 40" can be manufactured independently and then combined with the "other parts of the bridge housing 10" into a whole.

[0033] In a specific embodiment, the oil baffle 40 is connected to the inner wall of the bridge housing 10 , for example, and is configured as an integrated structure, specifically, by integral die-casting.

[0034] See also Figure 3 In one embodiment, the filter body 21 includes a housing 213, a filter element 214 disposed inside the housing 213, and a bracket 215 connected to the housing 213. The filter element 214 is mounted on the bracket 215, and the filter element 214 is spaced apart from the inner wall of the housing 213 and is formed with a first channel 216 connected to the oil inlet 211. A second channel 2141 connected to the oil outlet 212 is formed in the middle of the filter element 214. In this way, the lubricating oil splashed from the driven bevel gear 31 first enters the first channel 216 through the oil inlet 211, the first channel 216 is quickly filled with lubricating oil, and then moves horizontally through the filter element 214. After being filtered by the filter element 214, it enters the second channel 2141 and is discharged outwardly into the chamber through the oil outlet 212 of the second channel 2141.

[0035] Based on the previous embodiment, the bracket 215 includes a first connecting plate 2151, a second connecting plate 2152, and a connecting tube 2153 connected between the first and second connecting plates 2151, 2152. The first connecting plate 2151 is connected to the bottom end of the connecting tube 2153, which is also connected to the bottom of the housing 213. The second connecting plate 2152 is connected to the top end of the connecting tube 2153, which is also connected to the top of the housing 213. The filter element 214 is sleeved onto the exterior of the connecting tube 2153. The bottom end of the filter element 214 abuts the first connecting plate 2151, and the top end of the filter element 214 abuts the second connecting plate 2152. The oil inlet 211 is formed on the second connecting plate 2152. The oil outlet 212 is formed on the first connecting plate 2151 and communicates with the connecting tube 2153. The wall of the connecting tube 2153 is provided with multiple filter holes.

[0036] In some embodiments, the filter 20 includes but is not limited to being detachably mounted on the axle housing 10. In this way, after the filter 20 has been used for a period of time, the filter 20 can be disassembled and replaced according to actual needs.

[0037] See also Figure 1 In one embodiment, a first mounting hole 11 communicating with the chamber is provided on the top of the bridge housing 10 . The mounting member 22 is detachably provided at the first mounting hole 11 .

[0038] Specifically, the mounting member 22 includes, but is not limited to, a cover body provided with a first thread 221. The first mounting hole 11 is a threaded hole adapted to accommodate the first thread 221. This allows the mounting member 22 to be quickly and easily installed on the axle housing 10. Furthermore, even after the mounting member 22 is installed in the first mounting hole 11, the axle housing 10 still maintains a good seal due to the threaded engagement.

[0039] See also Figure 3 and Figure 4 In addition to the above embodiment, the mounting member 22 is provided with a toggle portion 222. The toggle portion 222 is, for example, a hexagonal prism or a plum blossom prism. When the toggle portion 222 is connected to a disassembly tool such as a screwdriver, the disassembly tool acts on the toggle portion 222 to rotate the mounting member 22, facilitating assembly and disassembly of the mounting member 22.

[0040] Of course, as some optional solutions, the mounting member 22 can also be detachably mounted on the bridge housing 10, for example, by snapping.

[0041] In one embodiment, the mounting member 22 is detachably connected to the filter body 21, and the filter body 21 can pass through the first mounting hole 11 to exit the axle housing 10 or enter the axle housing 10. In this way, after the filter 20 has been used for a period of time, the mounting member 22 of the filter 20 can be reused, and the filter body 21 can be replaced.

[0042] Based on the above embodiment, the mounting member 22 is provided with a connecting portion 223, and the filter body 21 is provided with a second mounting hole 217. The connecting portion 223 is detachably mounted at the second mounting hole 217. Optionally, a second thread is provided on the outer wall of the connecting portion 223, and the second mounting hole 217 is configured as a threaded hole adapted to the second thread.

[0043] In the prior art, the oil leakage hole 121 is typically located at the bottom of the middle housing portion of the axle housing 10 in the front-to-back direction. However, after a period of use, this hole is prone to oil leakage. Research has revealed that stress is relatively concentrated at the bottom of the middle housing portion of the axle housing 10 in the front-to-back direction, making the oil leakage hole 121 susceptible to deformation, which can lead to oil leakage and prevent the oil drain plug 13 from being installed.

[0044] See also Figure 5 In one embodiment, the axle housing 10 includes a rear cover 12 and an oil drain plug 13 connected to the rear cover 12. An oil leak hole 121 communicating with the chamber is provided at the bottom of the rear cover 12, and the oil drain plug 13 is detachably disposed at the oil leak hole 121. When the vehicle is placed on a horizontal surface in a normal posture, the oil leak hole 121 is at the very bottom of the axle housing 10. In this way, when the axle housing assembly is maintained, after the oil drain plug 13 is opened, the lubricating oil inside the axle housing 10 can be completely discharged to the outside through the oil leak hole 121, reducing the internal lubricating oil residue and simplifying the operation; in addition, the oil leak hole 121 opened at the bottom of the rear cover 12 is not easily deformed, so that oil leakage defects will not occur, and the oil drain plug 13 can be installed normally.

[0045] Based on the above embodiment, the distance S between the oil leakage hole 121 and the ground includes but is not limited to 20 mm, 30 mm, 40 mm, etc., and can be flexibly adjusted and set according to actual needs. Increasing the distance S can correspondingly improve the vehicle's passability in uneven road conditions.

[0046] Of course, in some optional solutions, the oil leakage hole 121 can also be arranged at the bottom or other positions of the middle shell of the axle housing 10 along the front-rear direction.

[0047] In some embodiments, the axle housing 10 includes, but is not limited to, an integral casting, which can reduce the number of parts, improve manufacturing efficiency, and enhance product processing quality and product qualification rate. Of course, as some optional solutions, the axle housing 10 can also be welded to form an integrated structure.

[0048] See also Figures 1 to 3 In one embodiment, an embodiment of the present application further provides a drive axle, which includes the axle housing assembly of any of the above embodiments, and also includes a main reducer assembly 30 connected to the axle housing 10. The main reducer assembly 30 includes a driven bevel gear 31, and the driven bevel gear 31 is arranged inside the chamber. When the driven bevel gear 31 rotates, it can drive the lubricating oil inside the chamber into the interior of the filter body 21 through the oil inlet 211.

[0049] During use of the above-mentioned drive axle, the lubricating oil inside the bridge housing 10 can splash into the oil inlet 211 under the drive of the driven bevel gear 31 of the main reducer assembly 30. The lubricating oil entering the interior of the filter body 21 through the oil inlet 211 is filtered by the filter body 21 under the action of its own gravity and discharged to the outside of the chamber through the oil outlet 212, so that it can be reused. In addition, compared with the related art in which the oil outlet pipe is arranged horizontally and the oil inlet pipe is arranged downward along the tangential direction of the driven bevel gear 31, the oil outlet 212 in the present application is arranged at the bottom of the filter body 21 and below the oil inlet 211, that is, the filter body 21 is placed in the chamber in the vertical direction, and relies on the gravity of the lubricating oil to achieve filtration, and does not require auxiliary devices such as oil pumps to increase the pressure of the filtration method. When running on a hilly road section, even if the filter 20 tilts a certain angle with the vehicle, the oil outlet 212 will always be located at the bottom of the filter body 21, which can ensure that the lubricating oil inside the filter body 21 can be discharged smoothly, and can prevent the defect of the lubricating oil being unable to be discharged, thereby reducing the failure rate of the drive axle, improving the performance of the drive axle, and extending the service life.

[0050] See also Figures 1 to 3 In one embodiment, the drive axle further includes a through-shaft logic assembly 50. This through-shaft logic assembly 50 is connected to the final drive assembly 30 and is also connected to the axle housing 10. The driven bevel gear 31 and the filter 20 are located on opposite sides of the through-shaft logic assembly 50. This creates a certain distance between the filter 20 and the driven bevel gear 31 in the left-right direction, thus preventing any direct impact on the filter 20 caused by the driven bevel gear 31 stirring the lubricating oil.

[0051] See also Figures 1 to 3 In one embodiment, the driven bevel gear 31 and the filter 20 are spaced apart in the left-right direction of the axle housing 10. The left-right distance L between the centerline of the driven bevel gear 31 and the centerline of the filter 20 includes, but is not limited to, 100 mm or greater, and specifically, can be 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, or even greater. This larger distance L prevents the driven bevel gear 31 from directly impacting the filter 20 when stirring the lubricating oil.

[0052] In one embodiment, an embodiment of the present application further provides a vehicle, the vehicle comprising the drive axle of any of the above embodiments.

[0053] During use of the above-mentioned vehicle, the lubricating oil inside the axle housing 10 can splash into the oil inlet 211 under the drive of the driven bevel gear 31 of the main reducer assembly 30. The lubricating oil that enters the interior of the filter body 21 through the oil inlet 211 is filtered by the filter body 21 under the action of its own gravity and is discharged outward into the chamber through the oil outlet 212, so that it can be reused. In addition, compared with the related art in which the oil outlet pipe is arranged horizontally and the oil inlet pipe is arranged downward along the tangential direction of the driven bevel gear 31, the oil outlet 212 in the present application is arranged at the bottom of the filter body 21 and below the oil inlet 211, that is, the filter body 21 is placed in the chamber in the vertical direction, and relies on the gravity of the lubricating oil to achieve filtration, and does not require auxiliary devices such as oil pumps to increase the pressure of the filtration method. When running on a hilly road section, even if the filter 20 tilts a certain angle with the vehicle, the oil outlet 212 will always be located at the bottom of the filter body 21, which can ensure that the lubricating oil inside the filter body 21 can be discharged smoothly, and can prevent the defect of the lubricating oil being unable to be discharged, thereby reducing the failure rate of the drive axle, improving the performance of the drive axle, and extending the service life.

[0054] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0055] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0056] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0057] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0058] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A bridge housing assembly, characterized in that: The axle housing assembly includes: an axle housing, wherein the axle housing is provided with a cavity; and a filter, the filter comprising a filter body and a mounting member connected to the filter body, the mounting member being disposed on the top of the axle housing, the filter body being disposed inside the axle housing, the filter body being provided with an oil inlet communicating with the chamber at the top, and an oil outlet communicating with the chamber at the bottom of the filter body, the oil outlet being located below the oil inlet so that lubricating oil entering the filter body through the oil inlet can flow through the filter body under its own gravity and be discharged outwardly into the chamber through the oil outlet; The axle housing assembly further comprises an oil baffle disposed below the filter at intervals, the oil baffle being vertically opposite to the oil outlet; the filter body comprises a housing, a filter element disposed within the housing, and a bracket connected to the housing; the filter element is mounted on the bracket, the filter element being spaced apart from the inner wall of the housing and forming a first channel communicating with the oil inlet, and a second channel communicating with the oil outlet being formed in the middle of the filter element; The bridge housing includes a rear cover and an oil drain plug connected to the rear cover; an oil leakage hole communicating with the chamber is provided at the bottom of the rear cover, and the oil drain plug is detachably arranged at the oil leakage hole; when the vehicle is placed on a horizontal surface in a normal posture, the oil leakage hole is at the bottom of the bridge housing.

2. The axle housing assembly according to claim 1, characterized in that: The oil baffle and the inner wall of the bridge housing are an integrated structure.

3. The axle housing assembly according to claim 2, characterized in that: The oil baffle and the bridge housing are integrally formed by die-casting.

4. The axle housing assembly according to claim 1, characterized in that: A first mounting hole communicating with the chamber is provided on the top of the bridge housing, and the mounting member is detachably arranged at the first mounting hole.

5. The axle housing assembly according to claim 4, characterized in that: The mounting member is detachably connected to the filter body.

6. The axle housing assembly according to claim 5, characterized in that: The filter body can pass through the first mounting hole to the outside of the axle housing or enter the inside of the axle housing.

7. A drive axle, characterized in that: The drive axle includes the axle housing assembly according to any one of claims 1 to 6, and also includes a main reducer assembly connected to the axle housing, the main reducer assembly includes a driven bevel gear, and the driven bevel gear is arranged inside the chamber. When the driven bevel gear rotates, it can drive the lubricating oil inside the chamber into the interior of the filter body through the oil inlet.

8. The drive axle according to claim 7, characterized in that: The drive axle also includes a through-shaft logic assembly, which is connected to the main reducer assembly and is also connected to the bridge housing; the driven bevel gear and the filter are respectively located on opposite sides of the through-shaft logic assembly.

9. The drive axle according to claim 7, characterized in that: The driven bevel gear and the filter are spaced apart in the left-right direction of the axle housing, and a distance L between a center line of the driven bevel gear and a center line of the filter in the left-right direction is ≥100 mm.

10. A vehicle, characterized in that: The vehicle includes the drive axle according to any one of claims 7 to 9.

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