Front axle assembly and vehicle

Abstract

The utility model discloses a front axle assembly and a vehicle, the front axle assembly comprises a speed reducer, the speed reducer is provided with a through hole, and a first assembling part is formed in the circumferential direction of the through hole; a first assembling part is formed at the end of the speed reducer, a second assembling part is formed at the end of the half-shaft sleeve, the speed reducer and the half-shaft sleeve are connected in a matched mode through the first assembling part and the second assembling part, and the shape of the first assembling part is matched with the shape of the second assembling part. And the width of the first assembly part and / or the second assembly part in the radial direction of the through hole is not less than 11mm. According to the front axle assembly, by arranging the first assembly part and / or the second assembly part with the width not smaller than 11 mm, the anti-shearing capacity and the anti-fatigue performance of a connecting point can be improved, so that the service life of parts is prolonged, the risk that oil leaks from a combination surface when a vehicle runs under the limit running working condition is reduced, efficient operation of the front axle assembly is guaranteed, and the service life of the front axle assembly is prolonged. And the working reliability of the front axle assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a front axle assembly and a vehicle. Background Technology

[0002] Related technologies indicate that the front axle, as a key component of the off-road vehicle's transmission system, is divided into two structures: integral front axles and split front axles. The former must withstand not only significant torque and vertical loads during operation, but also various complex alternating stresses caused by changes in road conditions. The latter, while only bearing torque and not vertical loads, still experiences alternating tensile and compressive forces at its mating surfaces when overcoming the reaction torque generated by the driving torque. This is because the main reducer assembly and the inner half-shaft assembly of the half-shaft sleeve are connected by flanges with bolts and sealed with a flat sealant. Therefore, the structural rationality of the split front axle sleeve mating surface significantly impacts the sealing performance of the internal gear oil. Currently, the minimum sealing width of the existing sleeve mating surface is only 7mm. Under extreme off-road conditions, the mating surface is more prone to excessive deformation due to insufficient rigidity, leading to oil leakage. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, this invention provides a front axle assembly that ensures efficient operation and improves the reliability of the front axle assembly.

[0004] This utility model also proposes a vehicle having the aforementioned front axle assembly.

[0005] According to a first aspect of the present invention, a front axle assembly includes: a reducer having a through hole and a first mounting portion having a circumferentially formed therein; a half-shaft sleeve having a second mounting portion formed at its end; the reducer and the half-shaft sleeve being connected by the first mounting portion and the second mounting portion through a mating connection; the shapes of the first mounting portion and the second mounting portion being adapted to each other; and the width of the first mounting portion and / or the second mounting portion in the radial direction of the through hole being not less than 11 mm.

[0006] According to the front axle assembly of this utility model, by providing a first assembly part and / or a second assembly part with a width of not less than 11mm, the shear resistance and fatigue resistance of the connection point can be improved, thereby extending the service life of the components, reducing the risk of oil leakage at the joint surface under extreme driving conditions, ensuring the efficient operation of the front axle assembly, and improving the working reliability of the front axle assembly.

[0007] In some embodiments, the reducer includes a housing and a cover, the cover being disposed on the housing, the housing and the cover together defining the through hole, the first assembly having a first assembly portion and a second assembly portion, the first assembly portion being formed on the housing and the second assembly portion being formed on the cover.

[0008] In some embodiments, the first assembly portion and the second assembly portion are connected end to end and extend circumferentially around the through hole, wherein the width of the first assembly portion in the radial direction of the through hole is not less than 11 mm.

[0009] In some embodiments, the first assembly portion is formed as a first assembly surface, the second assembly portion is formed as a second assembly surface, and the first assembly surface and the second assembly surface are adapted to each other.

[0010] In some embodiments, the reducer has a boss on the side facing the half-shaft sleeve, the through hole is formed on the boss and penetrates the boss in the axial direction, and the first mounting part is formed on the end face of the boss away from the reducer.

[0011] In some embodiments, the end of the half-shaft sleeve facing the reducer has a circumferentially extending flange that surrounds the half-shaft sleeve, and the second mounting portion is formed on the side surface of the flange facing the reducer.

[0012] In some embodiments, a first connecting hole is formed on the boss, and a second connecting hole is formed on the flange. The first connecting hole and the second connecting hole are arranged correspondingly, and the reducer and the half-shaft sleeve are connected by fasteners passing through the first connecting hole and the second connecting hole.

[0013] In some embodiments, the front axle assembly further includes a sealing ring, which is sleeved between the reducer and the half-shaft sleeve.

[0014] In some embodiments, a connecting ring adapted to extend into the through hole is formed on the side of the flange opposite to the half-shaft sleeve, and the sealing ring is sleeved on the connecting ring.

[0015] The vehicle according to the second aspect of the present invention includes the front axle assembly according to the first aspect of the present invention.

[0016] The vehicle according to this utility model improves the overall performance and reliability of the vehicle by providing the front axle assembly described in the first aspect.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front axle assembly according to an embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the reducer in the front axle assembly shown;

[0020] Figure 3 yes Figure 1 The diagram shows a schematic of the half-shaft sleeve of the front axle assembly.

[0021] Figure label:

[0022] 100. Front axle assembly;

[0023] 1. Reducer; 11. Through hole; 12. First assembly section; 121. First assembly sub-section; 122. Second assembly sub-section;

[0024] 13. Housing; 14. Cover; 15. Boss; 16. First connecting hole;

[0025] 2. Half-shaft sleeve; 21. Flange; 22. Connecting ring; 23. Second connecting hole;

[0026] 3. Sealing ring; 4. Fasteners. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] The following is for reference. Figures 1-3 A front axle assembly 100 according to a first aspect embodiment of the present invention is described.

[0029] like Figure 1 As shown, the front axle assembly 100 according to the first aspect of the present invention includes: a reducer 1 and a half-shaft sleeve 2.

[0030] Specifically, the reducer 1 has a through hole 11, and a first mounting part 12 is formed circumferentially in the through hole 11. A second mounting part is formed at the end of the half-shaft sleeve 2. The reducer 1 and the half-shaft sleeve 2 are connected by the first mounting part 12 and the second mounting part. The shapes of the first mounting part 12 and the second mounting part are adapted to ensure the stability and sealing of the connection. The width of the first mounting part 12 and / or the second mounting part in the radial direction of the through hole 11 is not less than 11mm, which ensures the strength and durability of the connection and solves the problem of the reducer 1.

[0031] Understandably, the through hole 11 provides space for the installation of the half-shaft sleeve 2. The shape of the first assembly part 12 is adapted to the shape of the second assembly part, thereby achieving a tight fit. The width of the first assembly part 12 and / or the second assembly part in the radial direction of the through hole 11 is not less than 11 mm. This can be either the width of the first assembly part 12 in the radial direction of the through hole 11 is not less than 11 mm, or the width of the second assembly part in the radial direction of the through hole 11 is not less than 11 mm, or both the width of the first assembly part 12 and the second assembly part in the radial direction of the through hole 11 is not less than 11 mm. This ensures sufficient contact area, thereby providing sufficient mechanical strength and stability. Furthermore, a larger width can disperse the force, reduce the pressure per unit area, and reduce the risk of failure due to local stress concentration.

[0032] The minimum sealing width of the existing sleeve joint surface is only 7mm. Under extreme off-road conditions, the joint surface is more prone to excessive deformation due to insufficient rigidity, leading to oil leakage. To solve the above problem, the front axle assembly 100 according to the present invention improves the shear resistance and fatigue resistance of the connection point by setting a first assembly part 12 and / or a second assembly part with a width of not less than 11mm, thereby extending the service life of the components, reducing the risk of oil leakage at the joint surface under extreme driving conditions, ensuring the efficient operation of the front axle assembly 100, and improving the working reliability of the front axle assembly 100.

[0033] It should be noted that the vehicles or automobiles mentioned in this application can refer to large automobiles, small automobiles, special-purpose vehicles, etc. For example, according to the vehicle type, the vehicles or automobiles in this application can be sedans, off-road vehicles, multi-purpose vehicles (MPVs), or other types of vehicles.

[0034] In some embodiments of this utility model, such as Figure 1 and Figure 2As shown, the reducer 1 includes a housing 13 and a cover 14. The cover 14 covers the housing 13, and the housing 13 and the cover 14 together define a through hole 11. The first assembly part 12 has a first assembly portion 121 and a second assembly portion 122. The first assembly portion 121 is formed on the housing 13, and the second assembly portion 122 is formed on the cover 14. It can be understood that the housing 13, as the main load-bearing component of the reducer 1, supports the internal gears and other transmission components and withstands various loads from the outside. The first assembly portion 121 is formed on the housing 13 for cooperating with the second assembly portion at the end of the half-shaft sleeve 2. The cover 14 covers the housing 13, protecting the internal parts and defining the through hole 11 together with the housing 13. The second assembly portion 122 is formed on the cover 14. The second assembly portion 122 and the first assembly portion 121 on the housing 13 together constitute the complete first assembly part 12. The structure is simple, easy to assemble and maintain, and reduces production and maintenance costs.

[0035] In some embodiments of this utility model, such as Figure 2 As shown, the first assembly section 121 and the second assembly section 122 are connected end-to-end and extend circumferentially around the through hole 11. The width of the first assembly section 121 in the radial direction of the through hole 11 is not less than 11 mm. It can be understood that the first assembly section 121 and the second assembly section 122 are connected end-to-end circumferentially around the through hole 11 to form a continuous integral assembly structure. This helps to disperse the force, making the load evenly distributed across the entire annular contact surface, reducing the risk of local stress concentration, and enhancing the stability of the overall structure. Especially under torque and alternating loads, it can provide better torsional resistance and fatigue resistance. The width of the first assembly section 121 in the radial direction of the through hole 11 is not less than 11 mm, ensuring that the front axle assembly 100 can withstand the pressure, tension, and shear force from the half-shaft sleeve 2. The larger radial width can effectively reduce the stress per unit area, reducing the risk of deformation or damage. The wide assembly surface is conducive to achieving more reliable sealing, especially under dynamic conditions, where good sealing is crucial to preventing gear oil leakage.

[0036] For example, the width of the first assembly distributed in the radial direction of the through hole 11 is any value not less than 11mm. Specifically, it can be 11mm, 11.1mm, 11.2mm, 11.3mm, 11.4mm, 11.5mm, 11.6mm, 11.7mm, 11.8mm, 11.9mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, etc.

[0037] In some embodiments of this utility model, the first assembly part 12 is formed as a first assembly surface, and the second assembly part is formed as a second assembly surface, with the first assembly surface and the second assembly surface being adapted to each other. Thus, by forming the first and second assembly surfaces, the connection between the reducer 1 and the half-shaft sleeve 2 not only achieves efficient and stable power transmission, but also improves the reliability, sealing, and durability of the entire system.

[0038] In some feasible embodiments, such as Figure 2 and Figure 3 As shown, both the first and second assembly surfaces can be formed as planes, or, in some other feasible embodiments, one of the first and second assembly surfaces is formed as a convex surface, and the other of the first and second assembly surfaces is formed as a concave surface. The convex and concave surfaces can fit together completely, ensuring the sealing between the first and second assembly surfaces.

[0039] In some embodiments of this utility model, such as Figure 1 As shown, a boss 15 is formed on the side of the reducer 1 facing the half-shaft sleeve 2. A through hole 11 is formed on the boss 15 and penetrates the boss 15 along its axial direction. A first mounting part 12 is formed on the end face of the boss 15 facing away from the reducer 1. It can be understood that the boss 15 increases the thickness of the reducer 1 housing 13 in the connection area, thereby improving the mechanical strength and rigidity of this part, helping to better withstand the pressure, tension and shear force from the half-shaft sleeve 2, reducing the risk of local stress concentration, and improving the fatigue resistance of the overall structure.

[0040] In some embodiments of this utility model, such as Figure 1 and Figure 3 As shown, a flange 21 extending circumferentially around the end of the half-shaft sleeve 2 facing the reducer 1 is formed, and a second mounting portion is formed on the side surface of the flange 21 facing the reducer 1. It can be understood that the flange 21 extending circumferentially around the end of the half-shaft sleeve 2 facing the reducer 1, and the second mounting portion located on the side surface of the flange 21 facing the reducer 1, further increases the thickness of the connection area by the fit between the flange 21 and the boss 15, improving local mechanical strength, increasing the contact area at the connection between the reducer 1 and the half-shaft sleeve 2, and improving connection stability. Simultaneously, the design of the through hole 11 makes the assembly tighter, reduces leakage paths, and improves sealing.

[0041] In some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, a first connecting hole 16 is formed on the boss 15, such as Figure 1 and Figure 3As shown, a second connecting hole 23 is formed on the flange 21. The first connecting hole 16 and the second connecting hole 23 are arranged correspondingly. The reducer 1 and the half-shaft sleeve 2 are connected by fasteners 4 passing through the first connecting hole 16 and the second connecting hole 23. As shown in the figure, there are four first connecting holes 16 and four second connecting holes 23. The four first connecting holes 16 and the four second connecting holes 23 are arranged in a one-to-one correspondence. The reducer 1 and the half-shaft sleeve 2 are firmly connected by fasteners 4, which not only realizes efficient and stable power transmission, but also improves the reliability, sealing and durability of the entire system.

[0042] In some embodiments of this utility model, such as Figure 3 As shown, the front axle assembly 100 also includes a sealing ring 3, which is fitted between the reducer 1 and the half-shaft sleeve 2. It is understood that the main function of the sealing ring 3 is to prevent gear oil or other lubricating media from leaking from the connection between the reducer 1 and the half-shaft sleeve 2. The sealing ring 3 is located between the first mounting surface (the end face of the reducer 1 boss 15) and the second mounting surface (the surface of the half-shaft sleeve 2 flange 21). Under vibration, temperature changes, and alternating loads generated during vehicle operation, the sealing ring 3 can maintain its elasticity and sealing performance. This not only achieves efficient mechanical fixing but also significantly enhances sealing performance, ensuring the stable operation of the front axle assembly 100 under various operating conditions.

[0043] Furthermore, a connecting ring 22 suitable for extending into the through hole 11 is formed on the side of the flange 21 opposite to the half-shaft sleeve 2, and the sealing ring 3 is sleeved on the connecting ring 22. This enhances the sealing performance, ensures the stable operation of the front axle assembly 100 under various operating conditions, and the connecting ring 22 provides an ideal installation position for the sealing ring 3, making the seal more reliable, while also simplifying the assembly and maintenance process.

[0044] Furthermore, the reducer 1 has a chamfer in the circumferential direction of the through hole 11. In order to avoid the sealing ring 3 being over-compressed, the size of the chamfer is increased from 1X45° to 2X45°, thereby ensuring the sealing effect.

[0045] The vehicle according to a second aspect of the present invention includes a front axle assembly 100 according to the first aspect of the present invention described above.

[0046] The vehicle according to the present invention improves the overall performance and reliability of the vehicle by providing the front axle assembly 100 of the first aspect embodiment described above.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] Furthermore, 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0051] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A front axle assembly (100), characterized by, The application relates to a front axle assembly (100) comprising: a speed reducer (1) formed with a through hole (11) having a first assembly part (12) formed in the circumferential direction of the through hole (11); a half shaft sleeve (2) having a second assembly part formed at the end thereof, the speed reducer (1) and the half shaft sleeve (2) being connected through the first assembly part (12) and the second assembly part, the first assembly part (12) and the second assembly part being adapted in shape, and the first assembly part (12) and / or the second assembly part having a width in the radial direction of the through hole (11) of not less than 11 mm.

2. The front axle assembly (100) of claim 1, wherein, The speed reducer (1) comprises a housing (13) and a cover (14), the cover (14) being arranged on the housing (13), the housing (13) and the cover (14) jointly defining the through hole (11), the first assembly part (12) having a first assembly subpart (121) and a second assembly subpart (122), the first assembly subpart (121) being formed on the housing (13), and the second assembly subpart (122) being formed on the cover (14).

3. The front axle assembly (100) of claim 2, wherein, The first assembly subpart (121) and the second assembly subpart (122) are sequentially connected end to end and extend in the circumferential direction of the through hole (11), the first assembly subpart (121) having a width in the radial direction of the through hole (11) of not less than 11 mm.

4. The front axle assembly (100) of any one of claims 1-3, wherein, The first assembly part (12) is formed as a first assembly surface, and the second assembly part is formed as a second assembly surface, the first assembly surface being adapted to the second assembly surface.

5. The front axle assembly (100) of claim 4, wherein, The speed reducer (1) is formed with a boss (15) on the side thereof facing the half shaft sleeve (2), the through hole (11) being formed on the boss (15) and penetrating the boss (15) in the axial direction of the boss (15), and the first assembly part (12) being formed on the side end surface of the boss (15) facing away from the speed reducer (1).

6. The front axle assembly (100) of claim 5, wherein, The half shaft sleeve (2) is formed with a flange (21) extending in the circumferential direction of the half shaft sleeve (2) on the end thereof facing the speed reducer (1), and the second assembly part is formed on the side surface of the flange (21) facing the speed reducer (1).

7. The front axle assembly (100) of claim 6, wherein, The boss (15) is formed with a first connecting hole (16), the flange (21) is formed with a second connecting hole (23), the first connecting hole (16) and the second connecting hole (23) being arranged correspondingly, and the speed reducer (1) and the half shaft sleeve (2) are connected through a fastener (4) penetrating the first connecting hole (16) and the second connecting hole (23).

8. The front axle assembly (100) of claim 6, wherein, Further comprising: a sealing ring (3) sleeved between the speed reducer (1) and the half shaft sleeve (2).

9. The front axle assembly (100) of claim 8, wherein, The side of the flange (21) facing away from the half shaft sleeve (2) is formed with a connecting ring (22) adapted to extend into the through hole (11), and the sealing ring (3) is sleeved on the connecting ring (22).

10. A vehicle characterized by comprising: The front axle assembly (100) according to any one of claims 1-9.

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