Drive shaft assembly and vehicle

Abstract

This application relates to a drive shaft assembly and a vehicle, belonging to the field of vehicle drive shaft technology. The drive shaft assembly includes a shaft handle, a shaft rod, and fasteners. One axial end of the shaft handle has a connecting groove, and the groove wall has a first connecting hole. One axial end of the shaft rod has a second connecting hole, and the end of the shaft rod with the second connecting hole is detachably inserted into the connecting groove. The second connecting hole corresponds to the first connecting hole. Fasteners are simultaneously located in both the first and second connecting holes to connect the shaft handle and the shaft rod. This application designs the drive shaft as a segmented structure including a shaft handle and a shaft rod, and utilizes the cooperation of the connecting groove and fasteners to achieve quick disassembly and connection of the shaft handle and shaft rod. This not only enables partial maintenance of the drive shaft, reducing the need for overall disassembly and lowering maintenance costs and time, but also improves safety during maintenance, avoiding potential damage to other components caused by the overall disassembly of the drive shaft.

Description

Technical Field

[0001] This application relates to the technical field of vehicle drive shafts, and more particularly to a drive shaft assembly and a vehicle. Background Technology

[0002] In the modern automotive industry, the drive shaft is a key component for power transmission, and its reliability and ease of maintenance directly affect vehicle performance and maintenance costs.

[0003] Currently, most vehicles use a unibody driveshaft design. When a malfunction occurs and repairs are needed, it often requires disassembling the entire driveshaft, and even related suspension and transmission systems. This not only increases the complexity and time required for repairs but also significantly raises repair costs. Furthermore, improper handling during the disassembly process can cause unnecessary damage to other components, affecting the overall performance of the vehicle.

[0004] Therefore, how to improve the ease of maintenance while ensuring the stable transmission of power by the drive shaft has become an urgent problem to be solved in the field of automotive design. Utility Model Content

[0005] This application addresses, to at least some extent, one of the technical problems in the related art.

[0006] Therefore, this application aims to provide a drive shaft assembly and vehicle, which adopts a segmented design for the drive shaft and utilizes the cooperation of connecting grooves and fasteners to achieve quick disassembly and connection between the two shaft segments. This not only enables partial maintenance of the drive shaft, reducing the need for overall disassembly and lowering maintenance costs and time, but also improves safety during the maintenance process and avoids potential damage to other components due to the overall disassembly of the drive shaft.

[0007] To achieve the above objectives, in a first aspect, this application provides a drive shaft assembly, comprising:

[0008] The shaft has a connecting groove at one axial end, and the groove wall has a first connecting hole.

[0009] The shaft has a second connecting hole at one end along its axial direction. The end of the shaft with the second connecting hole can be detachably inserted into the connecting groove. The second connecting hole is corresponding to the first connecting hole.

[0010] Fasteners are provided in both the first connecting hole and the second connecting hole to connect the shaft handle and the shaft rod to each other.

[0011] In this technical solution, by designing the drive shaft as a split structure comprising a handle and a shaft rod, when either the handle or the shaft rod is damaged, only the damaged part can be repaired or replaced, eliminating the need to repair or replace the entire drive shaft, thus reducing repair and replacement costs. Furthermore, this design facilitates the manufacture of the drive shaft and simplifies its production. By providing a connecting groove in the handle, allowing the end of the shaft rod to be inserted into the groove, and using fasteners to connect the handle and shaft rod, not only can quick disassembly and installation between the handle and shaft rod be achieved, but the strength of the connection between them can also be increased. By creating a first connecting hole in the groove wall and a second connecting hole in the shaft rod, with fasteners simultaneously placed in both holes, not only can the handle and shaft rod be easily fixed together using fasteners, but the alignment of the first and second connecting holes can also be used to position the connection between the handle and shaft rod, ensuring the connection accuracy.

[0012] In some embodiments of this application, a first connecting part is provided in the connecting groove, and a second connecting part is provided at one end of the shaft near the handle. The second connecting part cooperates with the first connecting part to connect the handle and the shaft.

[0013] In the technical solution, by setting a first connecting part in the connecting groove and a second connecting part on the shaft, the second connecting part and the first connecting part cooperate with each other, which can not only connect the shaft handle and the shaft, but also position the connection position between the shaft handle and the shaft, thereby increasing the connection effect between the shaft handle and the shaft.

[0014] In some embodiments of this application, the first connecting part is an internal spline provided on the wall of the connecting groove, and the second connecting part is an external spline provided on the end of the shaft near the handle. The external spline and the internal spline cooperate to connect the handle and the shaft.

[0015] In the technical solution, the first connecting part is designed as an internal spline and the second connecting part is designed as an external spline. The external spline and the internal spline are used to connect the shaft and the shaft rod. The external spline and the internal spline can also circumferentially position the shaft and the shaft rod, prevent relative rotation between the shaft and the shaft rod in the circumferential direction, and increase the reliability of the connection between the shaft and the shaft rod. At the same time, the spline can transmit torque, so that the circumferential force on the shaft and the shaft rod is uniform.

[0016] In some embodiments of this application, the first connecting hole is arranged radially along the shaft handle, and the second connecting hole is arranged radially along the shaft rod;

[0017] And / or, at least three first connecting holes and three second connecting holes are provided, with the three first connecting holes arranged circumferentially along the shaft handle and the three second connecting holes arranged circumferentially along the shaft rod, and the three first connecting holes and the three second connecting holes are provided in a one-to-one correspondence.

[0018] In this technical solution, the first connecting hole is arranged radially along the shaft handle, and the second connecting hole is arranged radially along the shaft rod. This ensures that when the shaft rod is inserted into the connecting groove, the first connecting hole can be precisely aligned with the second connecting hole, facilitating the placement of fasteners within both holes. By using three connecting holes (one for the first and two for the second), each corresponding to a different first hole, the shaft handle is connected to the shaft rod via three fasteners, increasing the strength of the connection. Furthermore, by arranging the three first connecting holes circumferentially along the shaft handle and the three second connecting holes circumferentially along the shaft rod, the force is evenly distributed when the shaft handle and shaft rod are connected via the three fasteners. This design ensures the connection between the shaft and the shank. Furthermore, the one-to-one correspondence between the three first connecting holes and the three second connecting holes further enhances the positioning effect between the shaft and the shank, thus guaranteeing the connection. The shaft and shank are connected by three fasteners, which form a triangle, further increasing the stability and reliability of the connection. Moreover, the three fasteners can position the shaft and / or shank in three directions. On a plane perpendicular to the shaft or shank, the internal and external splines can be subjected to more even force, avoiding localized stress concentration and improving the fit between the internal and external splines, further ensuring the connection between the shaft and the shank.

[0019] In some embodiments of this application, a bearing is sleeved on the shaft, and the bearing is located near the connection between the shaft and the shaft rod; the bearing is located on the outer periphery of the connecting groove.

[0020] In the technical solution, by setting a bearing on the shaft and placing the bearing at the connection between the shaft and the shaft rod, the bearing can support the rotation of the shaft and distribute the force at the connection between the shaft and the shaft rod, thus preventing the connection between the shaft and the shaft rod from being overloaded and failing. By placing the bearing on the outer periphery of the connecting groove, the bearing can be placed on the outer periphery of the part of the shaft rod that is inserted into the connecting groove, thereby allowing the bearing to better distribute the force on the shaft rod.

[0021] In some embodiments of this application, a movable joint is connected to one end of the shaft near the shaft handle, and the other end of the movable joint away from the shaft is inserted into a connecting groove; a second connecting hole is provided on the movable joint and is located at the end of the movable joint inserted into the connecting groove.

[0022] In the technical solution, a movable joint is set at one end of the shaft near the shaft handle. The movable joint is inserted into the connecting groove so that the shaft is connected to the shaft handle through the movable joint. The movable joint slides relative to the shaft in the axial direction through the shaft handle, so that the drive shaft can freely extend and retract within a certain range. This avoids problems such as stress concentration, component damage or transmission failure caused by fixed length, and ensures that power can be continuously and stably transmitted from the powertrain to the drive wheels, thus ensuring the normal operation of the vehicle.

[0023] In some embodiments of this application, the end of the shaft remote from the shaft is connected to the powertrain, and the end of the shaft remote from the shaft is connected to the drive wheel;

[0024] Alternatively, the end of the shaft away from the shaft rod is connected to the drive wheel, and the end of the shaft rod away from the shaft shaft is connected to the powertrain.

[0025] In the technical solution, by connecting the shaft handle to the powertrain and the shaft rod to the drive wheel, or by connecting the shaft handle to the drive wheel and the shaft rod to the powertrain, when the shaft handle or shaft rod is damaged or worn, it can be disassembled and repaired or replaced separately without the need for overall replacement, thus reducing maintenance costs.

[0026] In some embodiments of this application, the shaft is provided with a fixed section, which is located at the end of the shaft away from the shaft handle, and the fixed section is connected to the drive wheel;

[0027] Alternatively, the shaft may have a fixed section located at the end of the shaft away from the shaft rod, and the fixed section may be connected to the drive wheel.

[0028] In the technical solution, a fixed joint connected to the drive wheel is set at the end of the shaft away from the shaft handle, so that the shaft is connected to the drive wheel through the fixed joint. Alternatively, a fixed joint connected to the drive wheel is set at the end of the shaft handle away from the shaft, so that the shaft handle is connected to the drive wheel through the fixed joint. The fixed joint achieves precise positioning and stable connection between the shaft and the drive wheel or between the shaft handle and the drive wheel, effectively preventing the drive wheel from shifting or loosening during rotation, and ensuring the stability and reliability of power transmission.

[0029] Secondly, this application provides a vehicle, comprising:

[0030] Body;

[0031] The aforementioned drive shaft assembly is mounted on the vehicle body.

[0032] In the technical solution, by installing the aforementioned drive shaft assembly in the vehicle, when the drive shaft malfunctions and needs repair or replacement, only the faulty part can be disassembled, without the need for complete disassembly. This reduces repair costs and time, and also improves safety during the repair process.

[0033] In some embodiments of this application, at least two axles are provided, one axle forming the right drive axle of the vehicle and the other axle forming the left drive axle of the vehicle.

[0034] In the technical solution, at least two axles are set. One axle is used to form the right drive axle of the vehicle, making the right drive axle a segmented structure including a shaft and a shaft. The other axle is used to form the left drive axle of the vehicle, making the left drive axle a segmented structure including a shaft. Both the left and right drive axles include the same type of shaft, so that the left and right drive axles can share the same type of shaft, saving the development cycle and development cost of the right drive axle.

[0035] As can be seen from the above technical solutions, additional aspects and advantages of this application 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 this application. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the drive shaft assembly according to an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of the shaft according to an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of the structure of the movable section according to an embodiment of this application;

[0039] Figure 4 This is a structural schematic diagram of the drive shaft assembly according to an embodiment of this application from another angle;

[0040] Figure 5 yes Figure 4 Sectional view at point AA;

[0041] Figure 6 This is a structural schematic diagram of a fastener according to an embodiment of this application.

[0042] In the above figures: 1. Shaft handle; 2. Shaft rod; 3. Fixed section; 4. Moving section; 5. Fastener; 6. Bearing; 7. Dust cover;

[0043] 11. Connecting groove; 12. Limiting part;

[0044] 101. First connecting hole; 111. First connecting part; 112. Limiting platform;

[0045] 31. Fixed section spherical shell; 32. Fixed section bushing and ring;

[0046] 41. Connecting shaft; 42. Spherical shell of sliding section; 43. Sliding section bushing and ring clamp;

[0047] 401. Second connecting hole; 411. Second connecting part; 412. Protrusion;

[0048] S1, the first paragraph; S2, the second paragraph. Detailed Implementation

[0049] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and 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, and therefore should not be construed as a limitation of this application.

[0050] In this application, unless otherwise expressly 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 connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. 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.

[0053] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0054] It should be noted that in the modern automotive industry, the drive shaft, as a key component for power transmission, directly affects vehicle performance and maintenance costs due to its reliability and ease of maintenance.

[0055] In existing technologies, most vehicle drive shafts are designed as a single unit, especially the right front drive shaft. When a malfunction occurs and repair is needed, it often requires disassembling the entire drive shaft, and even the related suspension and transmission systems. This not only increases the complexity and time required for repairs but also significantly raises repair costs. Furthermore, improper handling during the disassembly process can cause unnecessary damage to other components, affecting the overall performance of the vehicle.

[0056] Based on this, this application proposes a drive shaft assembly and vehicle. By adopting a segmented design for the drive shaft, the drive shaft includes a shaft handle 1 and a shaft rod 2. The quick disassembly and connection between the two shaft segments are achieved by utilizing the cooperation of the connecting groove 11 and the fastener 5. This not only enables partial maintenance of the drive shaft, reducing the need for overall disassembly and lowering maintenance costs and time, but also improves safety during the maintenance process and avoids potential damage to other components due to the overall disassembly of the drive shaft.

[0057] In the following, embodiments of this application will be described in detail with reference to the accompanying drawings.

[0058] As attached Figures 1 to 6 As shown in an illustrative embodiment of the drive shaft assembly and vehicle of this application, the drive shaft assembly includes a shaft handle 1, a shaft rod 2, and a fastener 5; one axial end of the shaft handle 1 is provided with a connecting groove 11, and the groove wall of the connecting groove 11 is provided with a first connecting hole 101; one axial end of the shaft rod 2 is provided with a second connecting hole 401, and the end of the shaft rod 2 with the second connecting hole 401 is detachably inserted into the connecting groove 11, and the second connecting hole 401 is correspondingly provided with the first connecting hole 101; the fastener 5 is provided in the first connecting hole 101 and the second connecting hole 401 when the first connecting hole 101 and the second connecting hole 401 are aligned with each other, so that the shaft handle 1 and the shaft rod 2 are connected to each other.

[0059] It should be noted that fastener 5 is a component such as a bolt or screw, and fastener 5 is preferably a specially made locking bolt to ensure the firmness of the connection between the shaft shank 1 and the shaft rod 2.

[0060] It should also be noted that fastener 5 can only be simultaneously installed in both the first connecting hole 101 and the second connecting hole 401 to achieve the connection between the shaft handle 1 and the shaft rod 2 when the first connecting hole 101 and the second connecting hole 401 are aligned. Therefore, by fixing the shaft handle 1 and the shaft rod 2 with fastener 5, the circumferential connection position of the shaft handle 1 and the shaft rod 2 can be further positioned by aligning the first connecting hole 101 and the second connecting hole 401. Specifically, when the end of the shaft rod 2 is inserted into the connecting groove 11, the connection position of the shaft handle 1 and the shaft rod 2 can be initially positioned; when the first connecting hole 101 and the second connecting hole 401 are aligned, the circumferential connection position of the shaft handle 1 and the shaft rod 2 is further positioned; and fastener 5 is simultaneously installed in both the first connecting hole 101 and the second connecting hole 401 to achieve the fixed connection between the shaft handle 1 and the shaft rod 2.

[0061] like Figure 2 As shown, the connecting groove 11 is provided with a first connecting part 111, such as Figure 3 As shown, the shaft 2 has a second connecting part 411 at one end near the shaft handle 1. The second connecting part 411 cooperates with the first connecting part 111 to connect the shaft handle 1 and the shaft 2, and can also position the connection between the shaft handle 1 and the shaft 2.

[0062] In some embodiments, such as Figure 2 As shown, the first connecting part 111 is an internal spline provided on the wall of the connecting groove 11, such as... Figure 3 As shown, the second connecting part 411 is an external spline located at one end of the shaft 2 near the handle 1. The external spline mates with the internal spline to connect the handle 1 and the shaft 2.

[0063] The shaft shank 1 and shaft rod 2 are connected by internal and external splines. Utilizing the multi-tooth meshing structure, the load is evenly distributed across multiple teeth during torque transmission, effectively reducing the stress on individual teeth. This results in uniform stress distribution between the shaft shank 1 and shaft rod 2. Furthermore, this connection method offers good centering, ensuring coaxiality between the shaft shank 1 and shaft rod 2 and reducing vibration and noise during operation. Simultaneously, the spline tooth profile design provides strong guidance, enabling circumferential positioning of the shaft shank 1 and shaft rod 2 and preventing relative rotation between them, thus increasing the reliability of the connection.

[0064] like Figure 2 As shown, the first connecting hole 101 is provided on the groove wall of the connecting groove 11 along the circumferential direction. The first connecting hole 101 is arranged radially along the shaft handle 1, and the second connecting hole 401 is arranged radially along the shaft rod 2, so that when the shaft rod 2 is inserted into the connecting groove 11, the first connecting hole 101 can be precisely aligned with the second connecting hole 401, thereby facilitating the fastener 5 to be placed in the first connecting hole 101 and the second connecting hole 401.

[0065] In some embodiments, at least three first connecting holes 101 and two connecting holes 401 are provided, with the three first connecting holes 101 and the three second connecting holes 401 corresponding one-to-one, so that the shaft 1 is connected to the shaft 2 by three fasteners 5, thereby increasing the firmness of the connection between the shaft 1 and the shaft 2.

[0066] Preferably, the three first connecting holes 101 are arranged circumferentially along the shaft handle 1, and the three second connecting holes 401 are arranged circumferentially along the shaft rod 2, so that the shaft handle 1 and the shaft rod 2 can be evenly stressed when connected by the three fasteners 5, thereby increasing the connection effect between the shaft handle 1 and the shaft rod 2; and the three fasteners 5 can jointly form a triangle, further increasing the stability and reliability of the connection between the shaft handle 1 and the shaft rod 2. The three fasteners 5 can position the shaft handle 1 and / or the shaft rod 2 from three directions. On the plane perpendicular to the shaft handle 1 or the shaft rod 2, the shaft handle 1 and the shaft rod 2 are evenly stressed, so that the internal and external splines can be more evenly stressed, avoiding local stress concentration in the internal splines and / or external splines, increasing the fit effect of the internal and external splines, and ensuring the connection effect between the shaft handle 1 and the shaft rod 2.

[0067] like Figure 1 , Figure 4 and Figure 5 As shown, a bearing 6 is sleeved on the shaft 1, and the bearing 6 is used to support the rotation of the shaft 1. The bearing 6 is located near the connection between the shaft 1 and the shaft 2, and the bearing 6 is located on the outer periphery of the connecting groove 11, so that the bearing 6 can share the force at the connection between the shaft 1 and the shaft 2, and avoid the connection between the shaft 1 and the shaft 2 from being overloaded and failing.

[0068] like Figure 5 As shown, a limiting part 12 is provided on the shaft handle 1. The limiting part 12 is located on the outer periphery of the shaft handle 1. The bearing 6 is located on the side of the limiting part 12 away from the shaft rod 2, so as to limit the installation position of the bearing 6 on the shaft handle 1 and prevent the bearing 6 from detaching from the shaft handle 1 when the shaft handle 1 is separated from the shaft rod 2.

[0069] In some embodiments, the limiting part 12 is a boss provided on the outer periphery of the shaft 1, and the outer diameter of the limiting part 12 is larger than the inner diameter of the bearing 6 to prevent the bearing 6 from passing through the limiting part 12.

[0070] The two ends of the drive shaft are connected to the drive wheels and the powertrain respectively, so as to transmit power to the drive wheels and drive them to rotate. It should be noted that the power of the powertrain can come from an engine, an electric motor, or both; this is prior art in this field and will not be described further.

[0071] In some embodiments of this application, the end of the shaft 1 away from the shaft 2 is connected to the powertrain, and the end of the shaft 2 away from the shaft 1 is connected to the drive wheel. When the shaft 1 or shaft 2 is damaged or worn, it can be disassembled and repaired or replaced separately without the need for overall replacement, thus reducing maintenance costs.

[0072] In other embodiments of this application, the end of the shaft 1 away from the shaft 2 is connected to the drive wheel, and the end of the shaft 2 away from the shaft 1 is connected to the powertrain. When the shaft 1 or shaft 2 is damaged or worn, it can be disassembled and repaired or replaced separately without the need for overall replacement, thus reducing maintenance costs.

[0073] It should be noted that the shaft 1 is preferably connected to the powertrain, and the shaft 2 is preferably connected to the drive wheel.

[0074] In some embodiments of this application, such as Figure 1 and Figure 4 As shown, a movable joint 4 is connected to one end of the shaft 2 near the shaft handle 1, and the other end of the movable joint 4 away from the shaft 2 is inserted into the connecting groove 11 so that the shaft 2 is connected to the shaft handle 1 through the movable joint 4.

[0075] The second connecting hole 401 is provided on the movable section 4 and is located at one end of the movable section 4 that is inserted into the connecting groove 11; the fastener 5 is provided in the first connecting hole 101 and the second connecting hole 401 when the first connecting hole 101 and the second connecting hole 401 are aligned with each other, so that the shaft 1 and the movable section 4 are connected to each other.

[0076] In some embodiments, the connecting groove 11 is provided with a first connecting part 111, and the end of the movable joint 4 away from the shaft 2 is provided with a second connecting part 411. The second connecting part 411 and the first connecting part 111 cooperate with each other to connect the shaft 1 and the movable joint 4.

[0077] The movable section 4 slides relative to the shaft rod 2 in the axial direction through the shaft handle 1, allowing the drive shaft to extend and retract freely within a certain range. This avoids problems such as stress concentration, component damage, or transmission failure caused by a fixed length, ensuring that power can be continuously and stably transmitted from the powertrain to the drive wheels, thus guaranteeing the normal operation of the vehicle.

[0078] In some embodiments, such as Figure 4 As shown, the movable section 4 includes a movable section spherical shell 42 and a movable section bushing and a ring 43. A connecting shaft 41 is provided on one side of the movable section spherical shell 42, and the connecting shaft 41 is inserted into the connecting groove 11. The movable section bushing and the ring 43 are installed on the side of the movable section spherical shell 42 where the connecting shaft 41 is not provided, and the movable section bushing and the ring 43 are sleeved on the outer periphery of the shaft 2.

[0079] The external spline is provided on the peripheral wall of the connecting shaft 41, and the second connecting hole 401 is also provided on the connecting shaft 41. The second connecting hole 401 is provided near the end of the connecting shaft 41 that is connected to the ball shell 42 of the moving section, so that when the moving section 4 is connected to the shaft handle 1, the connecting shaft 41 can have a larger length to be inserted into the connecting groove 11, thereby increasing the connection effect between the moving section 4 and the shaft handle 1.

[0080] like Figure 3 and Figure 5 As shown, the connecting shaft 41 is provided with a protrusion 412, which is located on the outer periphery of the connecting shaft 41 and at one end of the connecting shaft 41 near the movable joint spherical shell 42; as Figure 5 As shown, a limiting platform 112 is provided in the connecting groove 11. The limiting platform 112 is located on the inner peripheral wall of the connecting groove 11. When the connecting shaft 41 is inserted into the connecting groove 11, the protrusion 412 cooperates with the limiting platform 112 to limit the insertion depth of the connecting shaft 41 in the connecting groove 11. When the protrusion 412 abuts against the limiting platform 112, it indicates that the connecting shaft 41 is inserted into the connecting groove 11, the insertion depth of the connecting shaft 41 in the connecting groove 11 is the maximum, and the mutual mating area of ​​the internal spline and the external spline is the maximum, thereby ensuring the connection effect between the shaft handle 1 and the connecting shaft 41.

[0081] In some embodiments, the second connecting hole 401 is located on the protrusion 412. When the connecting shaft 41 is inserted into the connecting groove 11, the external spline and the internal spline are first engaged, and then the fastener 5 is inserted into the second connecting hole 401 and the first connecting hole 101 to securely connect the connecting shaft 41 and the shaft handle 1. This not only facilitates the operation of connecting the connecting shaft 41 and the shaft handle 1, but also ensures the connection effect between the connecting shaft 41 and the shaft handle 1.

[0082] Preferably, no external spline is provided on the protrusion 412. The external spline is located on the side of the protrusion 412 away from the ball shell 42 of the moving joint. It can be considered that the external spline and the protrusion 412 are arranged along the axial direction of the connecting shaft 41. This design can avoid the cooperation effect of the internal and external splines being affected by the second connecting hole 401 provided on the protrusion 412.

[0083] In some embodiments, the limiting stage 112 divides the inner peripheral wall of the connecting groove 11 into a first segment S1 and a second segment S2. The first segment S1 and the second segment S2 are arranged along the axial direction of the shaft handle 1. When the shaft handle 1 is connected to the connecting shaft 41, the second segment S2 is closer to the moving joint spherical shell 42 than the first segment S1. The internal spline is located on the first segment S1, and the first connecting hole 101 is located on the second segment S2. When the connecting shaft 41 is inserted into the connecting groove 11, the external spline and the internal spline are first engaged, and then the fastener 5 is inserted into the second connecting hole 401 and the first connecting hole 101 to securely connect the connecting shaft 41 to the shaft handle 1. This not only facilitates the connection between the connecting shaft 41 and the shaft handle 1 but also ensures the connection effect between the connecting shaft 41 and the shaft handle 1.

[0084] Preferably, no internal spline is provided on the second segment S2, so as to avoid affecting the mating effect of the internal and external splines due to the first connecting hole 101 provided on the second segment S2.

[0085] It should be noted that, as Figure 4As shown, the bearing 6 is located on the outer periphery of the connecting shaft 41 so that the force on the sliding joint 4 can be transmitted to the bearing 6 radially along the shaft handle 1. This allows the bearing 6 to better share the force on the sliding joint 4 and the shaft 2, ensuring the stability and reliability of the shaft 2, the sliding joint 4 and the shaft handle 1 when rotating.

[0086] The installation steps of the movable section 4 and the shaft handle 1 are as follows: insert the connecting shaft 41 into the connecting groove 11 and align the first connecting hole 101 with the second connecting hole 401. Place the fastener 5 in the aligned first connecting hole 101 and second connecting hole 401 at the same time so that the shaft handle 1 is connected to the movable section 4.

[0087] The disassembly steps of the movable section 4 and the shaft handle 1 are as follows: remove the fastener 5 from the first connecting hole 101 and the second connecting hole 401, and disengage the connecting shaft 41 from the connecting groove 11 so that the movable section 4 and the shaft handle 1 are separated.

[0088] The detachable design of the movable section 4 and the shaft 1 not only reduces the impact of local maintenance on other components, but also avoids unnecessary overall disassembly. Furthermore, it enables the quick separation and reconnection of the movable section 4 and the shaft 1 without the use of special tools, further shortening maintenance time.

[0089] In some embodiments, repair time can be reduced by at least 50%, and repair costs can be reduced by more than 30%.

[0090] It should be noted that in some embodiments, magnetic coupling can also be used to connect the movable section 4 and the shaft 1. However, the stability and load-bearing capacity of the magnetic coupling connection are not as good as the connection method in this application, which uses the mutual cooperation of the connecting groove 11 and the connecting shaft 41 and the fastener 5 for fixed connection.

[0091] It should also be noted that the materials for the connecting shaft 41 and the groove wall of the connecting groove 11 can be ordinary alloy steel or aerospace-grade aluminum alloy, preferably aerospace-grade aluminum alloy, which is lightweight and has good corrosion resistance.

[0092] like Figure 1 and Figure 4 As shown, when the end of the shaft 2 away from the handle 1 is connected to the drive wheel, the shaft 2 is provided with a fixed section 3. The fixed section 3 is located at the end of the shaft 2 away from the handle 1 and is connected to the drive wheel, so that the shaft 2 is connected to the drive wheel through the fixed section 3. The fixed section 3 realizes the precise positioning and stable connection between the shaft 2 and the drive wheel, which can effectively prevent the drive wheel from shifting or loosening during rotation, and ensure the stability and reliability of power transmission.

[0093] When the end of the shaft 1 away from the shaft 2 is connected to the drive wheel, the shaft 1 is provided with a fixing section 3. The fixing section 3 is located at the end of the shaft 1 away from the shaft 2 and is connected to the drive wheel so that the shaft 1 is connected to the drive wheel through the fixing section 3. The fixing section 3 achieves precise positioning and stable connection between the shaft 1 and the drive wheel, which can effectively prevent the drive wheel from shifting or loosening during rotation, and ensure the stability and reliability of power transmission.

[0094] In some embodiments, such as Figure 4 As shown, the fixed section 3 includes a fixed section spherical shell 31 and a fixed section bushing and a ring 32. One end of the fixed section spherical shell 31 is connected to the drive wheel. The fixed section bushing and the ring 32 are sleeved on the outer periphery of the shaft 2, and the fixed section bushing and the ring 32 are installed at the end of the fixed section spherical shell 31 away from the drive wheel.

[0095] It should be noted that the specific structure and working principle of the moving section 4 and the fixed section 3 are common knowledge in this field and will not be elaborated here.

[0096] like Figure 1 and Figure 4 As shown, a dust cover 7 is provided at the end of the shaft 1 away from the moving joint 4. The dust cover 7 is used to prevent external impurities such as dust, mud, and water from entering the connection between the shaft 1 and the powertrain or drive wheel, thereby reducing the risk of failure caused by impurities and ensuring the stability and reliability of the vehicle transmission system.

[0097] It should be noted that the connection shaft 41 and the connection groove 11 disclosed in this application, which cooperate with each other and are connected by fasteners 5, can also be applied to the connection between other two shafts.

[0098] Based on the aforementioned drive shaft assembly, this application provides a vehicle including a vehicle body and the aforementioned drive shaft assembly, the drive shaft assembly being mounted on the vehicle body.

[0099] When a drive shaft malfunctions and needs repair or replacement, only the faulty part can be disassembled, without disassembling the entire shaft. This not only reduces repair costs and time but also improves safety during the repair process, avoiding potential damage to other components.

[0100] In some embodiments, the right drive shaft of the vehicle includes a handle 1 and a shaft 2, so that the right drive shaft of the vehicle can be partially disassembled, reducing the maintenance time and cost of the right drive shaft.

[0101] In other embodiments, at least two axles 2 are provided, one axle 2 for forming the right drive axle of the vehicle and the other axle 2 for forming the left drive axle of the vehicle, so that the left drive axle of the vehicle also includes axle 2, so that both the left and right drive axles include the same axle 2, thereby allowing the left and right drive axles to use the same type of axle 2, thereby saving the development cycle and development cost of the right drive axle.

[0102] It should be noted that the shaft 2 of the right drive shaft needs to be connected to the handle 1, so the shaft 2 needs to be provided with a second connecting hole 401, while the shaft 2 of the left drive shaft does not need to be provided with a second connecting hole 401.

[0103] It should also be noted that if the shaft 2 is detachably connected to the shaft handle 1 via the sliding joint 4, the sliding joint 4 of the right drive shaft is provided with a second connecting hole 401, while the sliding joint 4 of the left drive shaft does not need to be provided with a second connecting hole 401.

[0104] In practical applications, vehicles can also be equipped with intelligent diagnostic systems. These systems can quickly locate faults in the drive shaft, guiding repair personnel to precisely disassemble the faulty section without disassembling the entire drive shaft or related systems. Utilizing intelligent diagnostic systems allows repair personnel to locate faults without complex testing procedures, improving the accuracy and efficiency of fault detection and reducing errors during the repair process.

[0105] In some embodiments, the intelligent diagnostic system is an electronic system that uses sensor data and algorithm models to automatically identify and locate mechanical faults, which will not be described in detail here.

[0106] It should be noted that manual inspection can also replace intelligent diagnostic systems, but the efficiency and accuracy of manual inspection are far lower than those of automated intelligent diagnostic systems.

[0107] Through the description of several embodiments of the drive shaft assembly and vehicle of this application, it can be seen that the drive shaft assembly and vehicle embodiments of this application have at least one or more of the following advantages:

[0108] 1. By designing the drive shaft as a split structure including the shaft handle 1 and the shaft rod 2, when a partial failure occurs in the drive shaft, only the faulty part needs to be disassembled, reducing the need for overall disassembly, thereby reducing maintenance costs and time, improving safety during maintenance, and avoiding potential damage to other components.

[0109] 2. By setting a connecting groove 11 on the shaft handle 1, the movable section 4 connected to the shaft rod 2 can be detachably inserted into the connecting groove 11, and the shaft handle 1 and the movable section 4 are connected by a special locking bolt, so as to realize the quick disassembly and installation of the shaft rod 2 and the shaft handle 1, which improves the safety and convenience of the maintenance process.

[0110] 3. The shaft 1 and the moving section 4 are connected by a spline for torque transmission and connected by a special locking bolt to ensure the continuity and stability of power transmission.

[0111] 4. By opening a first connecting hole 101 in the groove wall of the connecting groove 11 and a second connecting hole 401 in the shaft 2, the fastener 5 is simultaneously placed in the first connecting hole 101 and the second connecting hole 401. This not only facilitates the fixed connection between the shaft handle 1 and the shaft 2 through the fastener 5, but also allows for the positioning of the connection position between the shaft handle 1 and the shaft 2, ensuring the connection accuracy between the shaft handle 1 and the shaft 2.

[0112] 5. An intelligent diagnostic system is set up to detect the fault location of the drive shaft. This system can not only quickly locate the fault location of the drive shaft, but also has high accuracy and efficiency in fault detection, reducing the risk of misoperation during the maintenance process.

[0113] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A drive shaft assembly, characterized in that, include: The shaft (1) has a connecting groove (11) at one end in the axial direction, and the groove wall of the connecting groove (11) has a first connecting hole (101); The shaft (2) has a second connecting hole (401) at one end in the axial direction. The end of the shaft (2) with the second connecting hole (401) is detachably inserted into the connecting groove (11). The second connecting hole (401) is correspondingly provided with the first connecting hole (101). Fastener (5) is provided in both the first connecting hole (101) and the second connecting hole (401) so that the shaft (1) and the shaft (2) are connected to each other.

2. The drive shaft assembly according to claim 1, characterized in that, The connecting groove (11) is provided with a first connecting part (111), and the shaft (2) is provided with a second connecting part (411) at one end near the shaft handle (1). The second connecting part (411) cooperates with the first connecting part (111) to connect the shaft handle (1) and the shaft (2).

3. The drive shaft assembly according to claim 2, characterized in that, The first connecting part (111) is an internal spline provided on the wall of the connecting groove (11), and the second connecting part (411) is an external spline provided on one end of the shaft (2) near the handle (1). The external spline cooperates with the internal spline to connect the handle (1) to the shaft (2).

4. The drive shaft assembly according to claim 1, characterized in that, The first connecting hole (101) is arranged radially along the shaft (1), and the second connecting hole (401) is arranged radially along the shaft (2); And / or, at least three of the first connecting holes (101) and the second connecting holes (401) are provided, with the three first connecting holes (101) arranged circumferentially along the shaft (1) and the three second connecting holes (401) arranged circumferentially along the shaft (2), and the three first connecting holes (101) and the three second connecting holes (401) are provided in a one-to-one correspondence.

5. The drive shaft assembly according to claim 1, characterized in that, A bearing (6) is fitted on the shaft (1), and the bearing (6) is located near the connection between the shaft (1) and the shaft (2); the bearing (6) is located on the outer periphery of the connecting groove (11).

6. The drive shaft assembly according to claim 1, characterized in that, The shaft (2) is connected to a movable joint (4) at one end near the shaft handle (1), and the movable joint (4) is inserted into the connecting groove (11) at the other end away from the shaft (2); the second connecting hole (401) is provided on the movable joint (4) and is located at the end of the movable joint (4) inserted into the connecting groove (11).

7. The drive shaft assembly according to claim 1, characterized in that, The end of the shaft (1) away from the shaft (2) is connected to the powertrain, and the end of the shaft (2) away from the shaft (1) is connected to the drive wheel; Alternatively, the end of the shaft (1) away from the shaft (2) is connected to the drive wheel, and the end of the shaft (2) away from the shaft (1) is connected to the powertrain.

8. The drive shaft assembly according to claim 7, characterized in that, The shaft (2) is provided with a fixed section (3), which is located at the end of the shaft (2) away from the shaft handle (1) and is connected to the drive wheel; Alternatively, the shaft (1) may be provided with a fixing section (3), which is located at the end of the shaft (1) away from the shaft (2) and is connected to the drive wheel.

9. A vehicle, characterized in that, include: Body; The drive shaft assembly according to any one of claims 1 to 8, wherein the drive shaft assembly is disposed on the vehicle body.

10. The vehicle according to claim 9, characterized in that, The axle (2) is provided in at least two parts, one axle (2) is used to form the right drive axle of the vehicle, and the other axle (2) is used to form the left drive axle of the vehicle.

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