Steering gear bracket and axle

Abstract

The present invention relates to a steering gear bracket and axle, wherein the steering gear bracket comprises: a mounting member; two connecting members, wherein the two connecting members are respectively arranged at both ends of the mounting member in a first direction, and the two connecting members are used to be mounted on the bottom of a shell, and together with the mounting member, form an installation space for accommodating a steering gear. In actual application, the above-mentioned steering gear bracket can be mounted on the bottom of the shell, and the steering gear can be mounted on the steering gear bracket. When the steering gear drives the wheel end assembly to rotate through a pull rod mechanism, the movement of the pull rod mechanism will only occupy the space below the shell. In this way, the pull rod mechanism will not occupy the horizontal space of the shell during movement, thereby allowing more space in the vehicle layout for installing battery components. For example, more space can be freed up for battery installation to improve the vehicle's endurance, greatly improving the flexibility of the vehicle layout.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, in particular to a steering gear bracket and a vehicle axle. Background Art

[0002] The vehicle steering gear is the most important component in the vehicle steering system. Its function is to appropriately convert the steering torque and steering angle from the steering wheel, and finally drive the wheel end assembly to rotate through the pull rod mechanism, thereby steering the vehicle.

[0003] Currently, a vehicle steering gear is usually mounted directly on the vehicle housing. When the vehicle steering gear drives the pull rod mechanism to move, the movement of the pull rod mechanism will occupy a large amount of space in the housing in the horizontal direction, thereby affecting the overall layout of the vehicle. Summary of the Invention

[0004] Based on this, it is necessary to provide a steering gear bracket and axle that improve the above-mentioned defects in order to address the problem that the movement of the pull rod mechanism occupies a large amount of space in the horizontal direction of the shell, thereby affecting the overall layout of the vehicle.

[0005] A steering gear bracket, comprising:

[0006] Mounting parts;

[0007] Two connecting members are respectively arranged at two ends of the mounting member in the first direction. The two connecting members are used to be installed at the bottom of the shell and together with the mounting member form an installation space for accommodating the steering gear.

[0008] In one embodiment, each of the connecting members includes a connecting body and a vertical plate, wherein the vertical plate is connected at an angle between the connecting body and the mounting member, and the connecting body is used to be mounted on the shell.

[0009] In one embodiment, each of the connecting members further includes a first reinforcement member, and the first reinforcement member is respectively connected to the connecting body and the vertical plate.

[0010] In one embodiment, the mounting member includes a mounting body and two second reinforcement members, the mounting body is used to mount the diverter, and each of the second reinforcement members is respectively connected to one of the vertical plates and the mounting body.

[0011] In one embodiment, the connecting body, the vertical plate, the first reinforcement, the mounting body and the second reinforcement are integrally formed.

[0012] In one embodiment, the steering gear bracket further includes a fastener, and each of the connecting members is fixedly connected to the mounting member via the fastener.

[0013] In one embodiment, the mounting member is provided with an escape portion extending through the second direction, and the escape portion is used to allow the output shaft of the steering gear to extend out of the mounting space through the escape portion.

[0014] A vehicle axle comprises a steering gear, a housing and the steering gear bracket as described above, wherein the steering gear bracket is arranged at the bottom of the housing.

[0015] In one embodiment, the axle further includes a wheel end assembly and a pull rod mechanism. The wheel end assembly is mounted on the shell and is transmission-connected to the steering gear through the pull rod mechanism. The steering gear drives the wheel end assembly to rotate through the pull rod mechanism. The pull rod mechanism is located on the side of the mounting member facing away from the shell.

[0016] In one embodiment, the axle further includes a fixing plate and a locking assembly; along the second direction, each of the connecting members is correspondingly provided with a fixing plate, and the fixing plate is arranged on a side of the housing away from the corresponding connecting member;

[0017] The housing is provided with locking assemblies fixedly connecting the fixing plate and the corresponding connecting piece on opposite sides in the third direction;

[0018] The first direction, the second direction, and the third direction intersect each other and are not coplanar.

[0019] In practical applications, the steering gear bracket can be mounted on the bottom of the housing, and the steering gear mounted on the steering gear bracket. Since the steering gear is not mounted directly on the housing, but is instead mounted below the housing via the steering gear bracket, when the steering gear drives the wheel end assembly to rotate via the pull rod mechanism, the movement of the pull rod mechanism only occupies the space below the housing. This ensures that the pull rod mechanism does not occupy the horizontal space of the housing during movement, thereby allowing more space in the vehicle layout for installing battery components. For example, more space can be freed up for battery installation to improve the vehicle's range, greatly enhancing the flexibility of the vehicle layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the axle in some embodiments of the present invention;

[0021] Figure 2 for Figure 1 A schematic structural diagram of a steering gear bracket in an axle in an embodiment;

[0022] Figure 3 for Figure 2 A schematic structural diagram of the stent deployed in the embodiment;

[0023] Figure 4Schematic diagram of the structure of a steering gear bracket in another embodiment of the present invention.

[0024] Axle 100;

[0025] Steering gear bracket 200; steering gear 210; output shaft 211; housing 220; wheel end assembly 230; drive motor 240;

[0026] Mounting member 10; mounting body 11; second reinforcement member 12; flange 13; avoidance portion 14; opening 15; avoidance hole 16;

[0027] Connecting member 20; connecting body 21; vertical plate 22; first reinforcing member 23; weight-reducing hole 24; fixing hole 25;

[0028] Fastener 30; fixing plate 31; U-bolt 32; locking hole 33;

[0029] Tie rod mechanism 40; steering arm 41; tie rod 42; steering knuckle arm 43;

[0030] First direction X; second direction Y; third direction Z. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of the present invention, it should be understood that 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" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it 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 intermediary. Furthermore, when a first feature is "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 "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.

[0036] It should be noted that when 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. When 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] See Figure 1 and Figure 2 The axle 100 provided in some embodiments of the present invention includes a shell 220, a steering gear 210 and a steering gear bracket 200. The steering gear bracket 200 is installed at the bottom of the shell 220, and the steering gear 210 is installed on the steering gear bracket 200. Compared with the traditional installation method of the steering gear 210, the steering gear 210 can be installed at a position below the shell 220 through the steering gear bracket 200.

[0038] The housing 220 further includes a wheel-end assembly 230 and a tie rod mechanism 40. The wheel-end assembly 230 is mounted on the housing 220 and is in transmission connection with the steering gear 210 via the tie rod mechanism 40, so that the steering gear 210 can drive the wheel-end assembly 230 to rotate via the tie rod mechanism 40. When the steering gear 210 is mounted below the housing 220 via the steering gear bracket 200, the tie rod mechanism 40 connected to the steering gear 210 is no longer located horizontally in the housing 220, but is located below the housing 220 along with the steering gear 210. In this way, the tie rod mechanism 40 only occupies a portion of the space below the housing during movement, leaving more space in the horizontal direction of the housing for the installation of components, greatly enhancing the flexibility of vehicle layout.

[0039] In actual application, the steering gear bracket 200 can be installed at the bottom of the housing 220, and then the steering gear 210 can be installed on the steering gear bracket 200. Since the steering gear 210 is not directly installed on the housing 220, but is installed at a position below the housing 220 through the steering gear bracket 200. Therefore, when the steering gear 210 drives the wheel end assembly to rotate through the pull rod mechanism 40, the pull rod mechanism 40 is no longer located in the horizontal space of the housing 220, but is located below the housing 220 together with the steering gear 210. In this way, the pull rod mechanism 40 does not occupy the horizontal space of the housing 220 during movement, thereby allowing more space for the installation of components in the vehicle layout. For example, more space can be freed up for the installation of batteries to improve the vehicle's endurance, greatly improving the flexibility of the vehicle layout.

[0040] In one embodiment of the present invention, a steering gear bracket 200 includes a mounting member 10 and two connecting members 20. The mounting member 10 is used to mount a steering gear 210. The two connecting members 20 are respectively mounted at both ends of the mounting member 10 in a first direction X. The two connecting members 20 are mounted on the bottom of a housing 220 and, together with the mounting member 10, form a mounting space for accommodating the steering gear 210. Specifically, each connecting member 20 is connected to the mounting member 10 and the bottom of the housing 220 at both ends in a second direction Y intersecting the first direction X. In this way, the two connecting members 20 and the mounting member 10 form the aforementioned mounting space at the bottom of the housing 220.

[0041] Furthermore, to avoid interference between the rod mechanism 40 and the two connecting members 20, the rod mechanism 40 is located on the side of the mounting member 10 facing away from the housing 220. In this way, the rod mechanism 40 moves below the mounting member 10, while the connecting member 20 is located on the side of the mounting member 10 close to the housing. Therefore, the connecting member 20 does not interfere with the rod mechanism 40. In order to enable the steering gear 210 to drive the rod mechanism 40 located below the mounting member 10, the mounting member 10 is provided with an avoidance portion 14 extending through the second direction. The output shaft 211 of the steering gear 210 extends out of the mounting space through the avoidance portion 14, that is, the output shaft 211 extends below the mounting member 10 and is connected to the rod mechanism 40, thereby driving the rod mechanism 40 to rotate through the rotation of the output shaft 211.

[0042] Among them, the pull rod mechanism 40 includes a steering arm 41, a transverse tie rod 42 and a steering knuckle arm 43, and is connected to one end of the steering arm 41, the other end of the steering arm 41 is connected to one end of the transverse tie rod 42, the other end of the transverse tie rod 42 is connected to one end of the steering knuckle arm 43, and the other end of the steering knuckle arm 43 is connected to the wheel end assembly 230, so that the rotation of the output shaft 211 of the steering gear 210 is converted into the swing of the wheel end assembly 230 through the joint action of the steering arm 41, the transverse tie rod 42 and the steering knuckle arm 43.

[0043] Furthermore, the axle 100 includes two wheel-end assemblies 230, each mounted at either end of the housing 220. To simultaneously drive the rotation of both wheel-end assemblies 230, a tie rod mechanism 40 includes two tie rods 42 and two steering knuckle arms 43. Each wheel-end assembly 230 is connected to a steering arm 41 via a tie rod 42 and a steering knuckle arm 43. Rotation of the output shaft 211 of the steering gear 210 simultaneously drives the rotation of both wheel-end assemblies 230. Thus, the rotation of both wheel-end assemblies 230 is driven by a single steering arm 41, ensuring consistent movement of the two wheel-end assemblies 230. This prevents inconsistent deflection of the two wheel-end assemblies 230 during driving, which could result in accelerated tire wear.

[0044] Specifically in the embodiment, in order to facilitate the disassembly and assembly of the steering gear 210 on the steering gear bracket 200, a separate avoidance portion is described.

[0045] In the embodiment, the escape portion 14 includes an escape hole 16 and an opening 15 connected to the escape hole 16. The opening 15 is located on one side of the mounting plate in the third direction Z. The third direction Z intersects with the first direction X and the second direction Y in pairs and is not coplanar. Thus, when installing the steering gear 210, the output shaft 211 of the steering gear 210 can directly enter the escape hole 16 through the opening 15 and then extend the output shaft 211 through the escape hole 16 to the bottom of the mounting member 10. This eliminates the need to disassemble the output shaft 211 of the steering gear 210, greatly facilitating installation and removal of the steering gear 210 from the mounting member 10.

[0046] In one embodiment of the present invention, to secure the steering gear bracket 200 to the housing 220, the axle 100 further includes a fixing plate 31 and a locking assembly. A fixing plate 31 is provided corresponding to each connector 20 along the second direction. The fixing plate 31 is disposed on the side of the housing 220 facing away from the corresponding connector 20, i.e., the fixing plate 31 is mounted on the top of the housing. Locking assemblies are provided on opposite sides of the housing 220 in the third direction, securing the fixing plate 31 to the connector 20. Thus, the entire steering gear bracket 200 is mounted on the housing 220 via the locking assemblies and fixing plates 31, thereby completing the installation and fixation of the entire steering gear bracket 200. Since the entire steering gear bracket 200 is mounted on the housing 220, the steering gear bracket 200 can be mounted on the housing 220 without requiring modifications to the housing 220, such as drilling holes. This allows the steering gear bracket 200 to be directly mounted on an existing housing 220, significantly improving the adaptability of the steering gear bracket 200.

[0047] Specifically, the axle includes two fixing plates 31 and four locking assemblies. The two fixing plates 31 are arranged at intervals on the top of the shell 220 and correspond to two connecting members 20. Two of the locking assemblies are located on both sides of the shell 220 in the third direction Z, and penetrate one of the fixing plates 31 and the corresponding connecting member 20 to lock and fix the fixing plate 31 and the corresponding connecting member 20; the remaining two locking assemblies are located on both sides of the shell 220 in the third direction Z, and penetrate the other fixing plate 31 and the corresponding connecting member 20 to lock and fix the other fixing plate 31 and the corresponding connecting member 20.

[0048] To enable the locking assembly to lock the fixing plate 31 and the connector 20, each locking assembly includes a U-shaped bolt 32 and two nuts. Each fixing plate 31 is provided with four locking holes 33 arranged in an array, two of which are located on one side of the housing 220 in the third direction Z, and the other two locking holes 33 are located on the other side of the housing 220 in the third direction Z. Each connector 20 is provided with four fixing holes 25 arranged in an array, with the four fixing holes 25 corresponding to the four locking holes 33. Each U-shaped bolt 32 is inserted through the two locking holes 33 and the corresponding two fixing holes 25 located on the side of the housing 220 in the third direction Z. The opening 15 end of the U-shaped bolt 32 is locked to the connector 20 via a nut, thereby locking the fixing plate 31 and the connector 20 together via the U-shaped bolt 32. The same applies to the remaining U-shaped bolts 32.

[0049] In other embodiments, each locking assembly may also include a stud bolt and two nuts. After the stud bolt passes through the fixing hole 25 and the locking hole 33, the two ends of the stud bolt are respectively locked on the fixing plate 31 and the connecting member 20 by two nuts. Similarly, the fixing plate 31 and the connecting member 20 can also be locked and fixed to each other.

[0050] In one embodiment of the present invention, each connecting member 20 includes a connecting body 21 and a vertical plate 22. The vertical plate 22 is connected between the connecting body 21 and the mounting member 10 at an angle. The connecting body 21 is attached to the bottom of the housing 220 and is provided with the four fixing holes 25 mentioned above, so that the connecting body 21 can be fixedly connected to the housing 220 through the locking assembly. By combining the two connecting members 20 with the mounting member 10, the steering gear bracket 200 is formed as a whole. shape, which can reduce the gap between the connecting member 20 and the shell 220, so that the two connecting members 20 and the bottom of the shell 220 fit more closely, thereby making the connection between the steering gear bracket 200 and the shell 220 more compact, which not only prevents the locking assembly from loosening, but also reduces the noise generated by the steering gear bracket 200 when the vehicle is running.

[0051] In some embodiments, each connector 20 further includes a first reinforcement member 23, which is connected to the connector body 21 and the vertical plate 22, respectively, thereby improving the connection strength between the connector body 21 and the vertical plate 22, thereby increasing the overall lateral rigidity and strength of the steering gear bracket 200. Furthermore, the mounting member 10 includes a mounting body 11 and two second reinforcement members 12. The mounting body 11 is used to mount the steering gear 210, and each second reinforcement member 12 is connected to one of the vertical plates 22 and the mounting body 11. The second reinforcement members 12 improve the connection strength between the mounting body 11 and the connector 20, thereby increasing the overall lateral rigidity and strength of the steering gear bracket 200.

[0052] Optionally, the first reinforcement 23 is a hem provided on one side of the connecting body 21 and bent toward the mounting body 11, and the first reinforcement 23 and the mounting body 11 are connected by welding. The second reinforcement 12 is a hem provided on one side of the mounting body 11 and bent toward the housing 220, and the second reinforcement 12 is connected to the vertical plate 22 by welding.

[0053] The mounting member 10 further includes a flange 13 formed on the mounting body 11. The flange 13 is provided at one end of the mounting body 11 in the third direction Z. The other end of the mounting body 11 is provided with an opening 15 and a relief portion 14. The flange 13 increases the vertical rigidity and strength of the mounting body 11, ensuring that the mounting body 11 can reliably bear the weight and vertical load of the steering gear 210.

[0054] In one embodiment, the connecting body 21, the vertical plate 22, the first reinforcement 23, the mounting body 11, the second reinforcement 12 and the flange 13 are all integrally formed from a single steel plate. Figure 3 As shown, the steering gear bracket 200 can be made of a steel plate, which is cut and bent according to the dotted lines, and then welded and drilled to form the final structure.

[0055] In order to reduce the weight of the steering gear bracket 200 , a weight-reducing hole 24 is further provided on each connecting body 21 . The weight-reducing hole 24 can be directly formed by stamping before bending the steel plate.

[0056] In other embodiments, such as Figure 4 As shown, the steering gear bracket 200 also includes a fastener 30. Each connecting member 20 is connected to the mounting member 10 via the fastener 30. The fastener 30 can be a bolt or a rivet, etc. At the same time, fixing ears are provided on the mounting body 11 and the vertical plate 22. The fixing ears on the mounting body 11 and the vertical plate 22 are provided with multiple connecting holes. The fastener 30 is passed through the connecting holes on the mounting body 11 and the connecting holes on the vertical plate 22, thereby connecting the mounting body and the vertical plate 22 to each other, completing the assembly of the steering gear bracket 200.

[0057] In one embodiment of the present invention, the axle 100 further includes a drive motor 240 mounted on the housing 220. The drive motor 240 is in transmission connection with the two wheel-end assemblies 230 to drive the two wheel-end assemblies 230 to rotate. In conjunction with the steering gear 210 and wheel-end assemblies 230 within the axle 100, the axle 100 simultaneously comprises independent modules for steer-by-wire (i.e., the steering gear 210), brake-by-wire (i.e., the wheel-end assemblies 230), and drive-by-wire (i.e., the drive motor 240), greatly enhancing the flexibility of the axle 100's placement on the vehicle. Furthermore, the steering gear bracket 200 further reduces the space required for the axle 100's placement, further enhancing the flexibility of the vehicle's overall layout.

[0058] The steering gear bracket 200 has at least the following advantages:

[0059] By installing the steering gear bracket 200 at the bottom of the housing 220 and then installing the steering gear 210 on the steering gear bracket 200, the steering gear 210 is not directly installed on the housing 220, but is installed below the housing 220 through the steering gear bracket 200. Therefore, when the steering gear 210 drives the wheel end assembly to rotate through the pull rod mechanism 40, the pull rod mechanism 40 is no longer located in the horizontal direction of the housing 220, but is located below the housing 220 together with the steering gear 210. In this way, the pull rod mechanism 40 does not occupy the horizontal space of the housing 220 during movement, so that there is more space in the vehicle layout for the installation of components. For example, more space can be freed up for the installation of batteries to improve the vehicle's endurance, greatly improving the flexibility of the vehicle layout.

[0060] 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.

[0061] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A steering gear bracket, characterized in that: The steering gear bracket includes: Mounting member (10); Two connecting members (20), the two connecting members (20) are respectively arranged at both ends of the mounting member (10) in the first direction, the two connecting members (20) are used to be installed at the bottom of the housing (220) of the axle, and together with the mounting member (10) form an installation space for accommodating the steering gear (210), Each of the connecting members (20) includes a connecting body (21) and a vertical plate (22), wherein the vertical plate (22) is connected between the connecting body (21) and the mounting member (10) at an angle, and the connecting body (21) is used to be mounted on the housing (220). Each of the connecting members (20) also includes a first reinforcement member (23), wherein the first reinforcement member (23) is connected to the connecting body (21) and the vertical plate (22) respectively. The mounting member (10) includes a mounting body (11) and two second reinforcement members (12), the mounting body (11) is used to mount the steering gear (210), each second reinforcement member (12) is respectively connected to one of the vertical plates (22) and the mounting body (11), the bottom of the mounting member (10) is provided with a avoidance portion (14) extending through the second direction, the avoidance portion (14) is used to allow the output shaft of the steering gear to extend out of the mounting space through the avoidance portion (14), the output shaft extends to the bottom of the mounting member and is connected to the pull rod mechanism, and the steering arm of the pull rod mechanism is driven by the rotation of the output shaft, the other end of the steering arm is connected to one end of the transverse tie rod, the pull rod mechanism is located on the side of the mounting member away from the shell and below the shell, and also includes two fixing plates and locking assemblies, each locking assembly includes a U-bolt and two nuts, the fixing plate is arranged on the top of the shell and corresponds to two connecting members, and the steering gear bracket is hung on the shell through the locking assembly and the fixing plate along the second direction.

2. The steering gear bracket according to claim 1, characterized in that: The connecting body (21), the vertical plate (22), the first reinforcement member (23), the mounting body (11) and the second reinforcement member (12) are integrally formed.

3. The steering gear bracket according to claim 1, characterized in that: The steering gear bracket further comprises a fastener (30), and each of the connecting members (20) is fixedly connected to the mounting member (10) via the fastener (30).

4. A vehicle axle, characterized in that: The invention comprises a steering gear (210), a housing (220), and a steering gear bracket (200) according to any one of claims 1 to 3, wherein the steering gear bracket (200) is arranged at the bottom of the housing (220).

5. The axle according to claim 4, characterized in that The axle further includes a wheel end assembly (230) and a pull rod mechanism (40), wherein the wheel end assembly (230) is mounted on the housing (220) and is transmission-connected to the steering gear (210) via the pull rod mechanism (40), and the steering gear (210) drives the wheel end assembly (230) to rotate via the pull rod mechanism (40), and the pull rod mechanism (40) is located on a side of the mounting member (10) facing away from the housing (220).

6. The axle according to claim 4, characterized in that The axle further comprises a fixing plate (31) and a locking assembly; Along the second direction (Y), each of the connecting members (20) is correspondingly provided with a fixing plate (31), and the fixing plate (31) is arranged on a side of the housing (220) facing away from the corresponding connecting member (20); the housing (220) is provided with locking assemblies fixedly connecting the fixing plate (31) and the corresponding connecting member (20) on opposite sides in the third direction (Z); the first direction (X), the second direction (Y), and the third direction (Z) intersect with each other and are not coplanar.

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