Vehicle and axle card assembly thereof

Abstract

This utility model provides a vehicle and its axle clamp assembly. The axle clamp assembly includes an upper axle clamp, a pressure plate, a lower axle clamp, and connecting members. The pressure plate is spaced above the upper axle clamp, and the pressure plate and the upper axle clamp together form a through hole extending longitudinally through both sides, for the cantilever to pass through. The lower axle clamp is spaced below the upper axle clamp, and the lower axle clamp includes a base plate and a connecting seat. The base plate and the upper axle clamp together form a through hole extending laterally through both sides, for the axle to pass through. The lower longitudinal opening of the connecting seat forms a slot, which is used to engage and fix with the longitudinal end of the base plate, and the connecting seat is used to hinge with the suspension bracket of the suspension assembly. Two connecting members are spaced longitudinally, one end of each connecting member is connected to the lower axle clamp, and the other end extends upward through the upper axle clamp and around the pressure plate, then downward through the upper axle clamp and connects to the lower axle clamp, so as to press and fix the pressure plate, cantilever, upper axle clamp, axle, and lower axle clamp.

Description

Technical Field

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

[0002] With the development of new energy technologies, electric drive axles are gradually being applied to various commercial vehicles, enabling the electrification of the entire vehicle and energy recovery. However, integrating electric drive axles into semi-trailer platforms still faces many structural adaptation challenges. Most existing semi-trailers use traditional mechanical suspension systems, whose original designs did not consider the installation requirements of electric drive axles, especially in the connection structure between the electric drive axle and the suspension, which generally uses simple axle clips or transition connectors. Such connection solutions suffer from insufficient strength, poor adaptability, large vibration response, and limited cable routing, making it difficult to meet the comprehensive requirements of electric drive axles for connection rigidity, stability, and ease of maintenance during operation.

[0003] Therefore, there is an urgent need to propose a new electric drive axle card connection scheme that is structurally reliable, easy to install, and suitable for semi-trailer platforms, so as to ensure the safety and reliability of the vehicle's power system. Utility Model Content

[0004] The purpose of this utility model is to provide a vehicle and its axle clamp assembly, which has the characteristics of reliable structure and convenient installation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: According to one aspect of this application, an axle clamp assembly is provided for connecting an axle of a traveling mechanism and a cantilever of a suspension assembly, the axle being located below the cantilever; the axle clamp assembly includes: Upper shaft card; A pressure plate is positioned above the upper shaft clip, and the pressure plate and the upper shaft clip together form a through hole that extends longitudinally through both sides, the through hole being used for the cantilever to pass through; The lower axle clip is located below the upper axle clip; the lower axle clip includes a base plate and a connecting seat, the base plate and the upper axle clip forming a through hole that extends laterally through both sides, the through hole being for the axle to pass through; the lower longitudinal side opening of the connecting seat forms a slot, the slot being for engaging and fixing with the longitudinal end of the base plate; the connecting seat is used for hinged to the suspension bracket of the suspension assembly; Two connecting parts are spaced apart along the longitudinal direction. One end of each connecting part is connected to the lower axle clip, and the other end extends upward through the upper axle clip and around the pressure plate, then downward through the upper axle clip and connects to the lower axle clip, so as to press and fix the pressure plate, the cantilever, the upper axle clip, the axle, and the lower axle clip.

[0006] In some embodiments, one longitudinal end of the substrate is a snap-fit ​​portion that snaps into the slot. The longitudinal end of the snap-fit ​​portion is provided with an inclined surface that slopes outward from top to bottom, and the slot is adapted to the inclined surface. The connector includes two connecting plates, the bottom of which extends downward beyond the base plate, and the slot is formed on the lower longitudinal side of each connecting plate.

[0007] In some embodiments, the connecting plate is provided with connecting holes for hinged connection with the suspension bracket of the suspension assembly, and the connecting holes and the slots are distributed longitudinally at intervals.

[0008] In some embodiments, the lower shaft clip further includes two vertical stiffeners, which are laterally spaced on the top of the base plate, and the longitudinal ends of each vertical stiffener are fixed to the connecting seat. Each of the vertical stiffeners has a receiving portion with a top opening and extending laterally on both sides. The receiving portion is adapted to the shape of the axle. The receiving portions of the two vertical stiffeners are connected laterally to jointly receive and support the axle.

[0009] In some embodiments, each of the longitudinal ends of each lateral side of the substrate is provided with a mounting hole for the connector to pass through; each of the lateral sides of the substrate is provided with a weight-reducing groove with an outward opening; and the two vertical stiffeners are distributed between the mounting holes on the lateral sides. The connecting seat includes two connecting plates, which are integrally formed with the two vertical stiffeners in a one-to-one correspondence.

[0010] In some embodiments, the vertical stiffeners are inclined outward from top to bottom from the outer side of the connecting seat; The lower axle clip also includes two reinforcing plates, which are longitudinally spaced between the two vertical stiffeners and are arranged on the longitudinal outer side of the receiving portion. The bottom of each reinforcing plate is fixed to the top of the base plate, and each reinforcing plate is spaced from the longitudinal end of the base plate. Each reinforcing plate is used to abut against the longitudinal side of the axle and to be fixed to the axle.

[0011] In some embodiments, the upper shaft clip includes a clip plate, and each of the longitudinal ends on each lateral side of the clip plate is provided with a through hole for the connector to pass through; The card plate has concave surfaces with outward openings on each of its lateral sides.

[0012] In some embodiments, the upper axle clamp further includes two reinforcing members, which are longitudinally spaced at the bottom of the clamp plate. Each reinforcing member is used to abut against one longitudinal side of the axle and to be fixedly connected to the axle. The reinforcement includes an abutment plate and two reinforcing plates. The abutment plate extends laterally, and the two reinforcing plates are respectively disposed at the two lateral ends of the longitudinal outer side of the abutment plate. The two reinforcing plates and the abutment plate are integrally bent into shape.

[0013] In some embodiments, the connector is detachably connected to the lower shaft clip; The connector is a U-bolt.

[0014] According to another aspect of this application, this application also provides a vehicle, comprising: Frame; A suspension assembly includes two suspension components spaced laterally at the bottom of the vehicle frame, each suspension component including two suspension brackets spaced longitudinally and a cantilever connecting the two suspension brackets; A traveling mechanism is located below the cantilever; the traveling mechanism includes a transversely arranged axle and two traveling wheels located at both transverse ends of the axle, the traveling wheels being rotatably connected to the axle; As described in any of the above, the lateral ends of the axle are respectively connected to the cantilever of a suspension assembly via an axle clamp assembly, and the lower axle clamp of the axle clamp assembly is hinged to one of the suspension brackets of the corresponding suspension assembly.

[0015] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: In this application, a slot is provided on the connector of the lower shaft card for engaging and fixing with the longitudinal end of the substrate. This design increases the contact area between the substrate and the connector, which helps to disperse the stress at the connection point, reduce the risk of fatigue cracks, and significantly improve the overall structural strength, stability and durability. Furthermore, the slot design can also play a positioning role in the assembly process of the connector and the substrate, which helps to improve the installation accuracy and increase the production efficiency of the lower shaft card. Attached Figure Description

[0016] Figure 1 This is a partial structural diagram of the vehicle in this embodiment.

[0017] Figure 2 This is a three-dimensional structural diagram of the shaft card assembly in this embodiment.

[0018] Figure 3 This is an exploded structural diagram of the shaft card assembly in this embodiment.

[0019] Figure 4 This is a schematic diagram of the upper shaft card in this embodiment.

[0020] Figure 5This is a three-dimensional structural diagram of the lower shaft card in this embodiment.

[0021] Figure 6 This is a planar structural diagram of the lower shaft card in this embodiment.

[0022] Figure 7 This is a cross-sectional view of the lower shaft card in this embodiment.

[0023] The annotations in the attached figures are explained as follows: 100. Suspension assembly; 110. Suspension bracket; 120. Cantilever; 200. Traveling mechanism; 210. Axle; 300. Axle clip assembly; 1. Upper axle clip; 11. Clip plate; 111. First fixing hole; 112. Concave surface; 12. Reinforcing member; 121. Abutment plate; 122. Reinforcing plate; 13. Through hole; 2. Pressure plate; 21. Pressure groove; 22. Second fixing hole; 3. Lower axle clip; 31. Base plate; 311. Clip-on part; 312. Inclined surface; 313. Mounting hole; 314. Weight reduction groove; 32. Connecting seat; 322. Connecting plate; 3221. Connecting hole; 33. Vertical stiffener; 331. Receiving part; 34. Reinforcing plate; 4. Connecting member; 41. Pressing section; 42. Connecting section; 400. Hinge rod. Detailed Implementation

[0024] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0025] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back, etc.) 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. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0026] 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 the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] This application provides a vehicle including a frame, a suspension assembly, a running gear, and an axle clamp assembly.

[0028] The chassis is a cuboid frame structure. For ease of description, this paper uses the length direction of the chassis as the longitudinal direction and the width direction of the chassis as the transverse direction.

[0029] Figure 1 This is a partial structural diagram of the vehicle in this embodiment.

[0030] refer to Figure 1 The suspension assembly 100 includes two suspension components spaced laterally at the bottom of the vehicle frame. Each suspension component includes two suspension brackets 110 spaced longitudinally and a cantilever 120 connected between the two suspension brackets 110.

[0031] Specifically, the four suspension brackets 110 of the suspension assembly 100 form a rectangular shape, that is, the four suspension brackets 110 are set at the four corners of the rectangle. Among them, the two suspension brackets 110 distributed in the lateral direction are connected by a connecting rod to enhance the structural strength and stability of the suspension assembly 100.

[0032] The cantilever 120 extends longitudinally. The cantilever 120 can be formed by stacking multiple plates, with the longitudinal ends of the upper plate extending outwards beyond the lower plate in any two adjacent plates, resulting in an inverted trapezoidal shape for the cantilever 120. The cantilever 120 is elastic.

[0033] The cantilever 120 has a through-hole for fasteners to pass through.

[0034] The traveling mechanism 200 is located below the cantilever 120. Specifically, the traveling mechanism 200 includes a transversely arranged axle 210 and two traveling wheels located at both ends of the transverse direction of the axle 210. The axle 210 is located below the cantilever 120, and each transverse end of the axle 210 is connected to the cantilever 120 of a suspension assembly. The traveling wheels are rotatably connected to the axle 210. The axle 210 can be an electric drive axle.

[0035] It should be noted that this application does not improve the suspension assembly 100 or the traveling mechanism 200; their related structures can be referred to the prior art.

[0036] The axle clamp assembly 300 is used to connect the axle 210 of the traveling mechanism 200 and the cantilever 120 of the suspension assembly 100. Specifically, each lateral end of the axle 210 is connected to the cantilever 120 of the suspension assembly via an axle clamp assembly 300.

[0037] The following detailed description of specific embodiments of the shaft card assembly 300 of this application, in conjunction with the accompanying drawings, provides a comprehensive overview.

[0038] Figure 2 This is a three-dimensional structural diagram of the shaft card assembly 300 in this embodiment. Figure 3This is an exploded structural diagram of the shaft card assembly in this embodiment.

[0039] refer to Figure 1 and Figure 2 The axle clamp assembly 300 includes an upper axle clamp 1, a pressure plate 2, a lower axle clamp 3, and a connector 4. The pressure plate 2 is positioned above the upper axle clamp 1, and the pressure plate 2 and the upper axle clamp 1 together form a through hole extending longitudinally through both sides, for the cantilever 120 to pass through. The lower axle clamp 3 is positioned below the upper axle clamp 1, and the lower axle clamp 3 includes a base plate 31 and a connecting seat 32. The base plate 31 and the upper axle clamp 1 together form a through hole extending laterally through both sides, for the axle 210 to pass through. The lower longitudinal side opening of the connecting seat 32 forms a slot, which is used to engage and fix with the longitudinal end of the base plate 31. The connecting seat 32 is used to hinge with the suspension bracket 110 of the suspension assembly 100. Two connecting parts 4 are distributed longitudinally at intervals. One end of each connecting part 4 is connected to the lower axle clip 3, and the other end extends upward through the upper axle clip 1 and around the pressure plate 2, then passes downward through the upper axle clip 1 and connects to the lower axle clip 3, so as to press and fix the pressure plate 2, cantilever 120, upper axle clip 1, axle 210 and lower axle clip 3.

[0040] In this application, by providing a slot on the connecting seat 32 of the lower shaft clip 3 for engaging and fixing with the longitudinal end of the substrate 31, this design can increase the contact area between the substrate 31 and the connecting seat 32, which is beneficial for dispersing the stress at the connection point, reducing the risk of fatigue cracks, and significantly improving the overall structural strength, stability and durability. Furthermore, the slot design can also play a positioning role in the assembly process of the connecting seat 32 and the substrate 31, which is beneficial for improving installation accuracy and increasing the production efficiency of the lower shaft clip 3.

[0041] Figure 4 This is a schematic diagram of the upper shaft card 1 in this embodiment.

[0042] refer to Figures 2-4 The upper axle clip 1 includes a clip plate 11, the top surface of which is used to fit against the bottom of the cantilever 120, and the bottom surface of which is used to fit against the top surface of the axle 210.

[0043] The clamping plate 11 has a through hole 13 at each of its longitudinal ends on each of its transverse sides. Optionally, each of the transverse sides of the clamping plate 11 has an outwardly opening concave surface 112. This design can reduce the material used in the clamping plate 11, thereby reducing its weight and contributing to the lightweighting of the shaft clamping assembly 300. Specifically, on the same transverse side of the clamping plate 11, the concave surface 112 is located longitudinally between the two through holes 13.

[0044] The card plate 11 is also provided with a first fixing hole 111, which corresponds to the opening on the cantilever 120 and is used for fasteners to pass through.

[0045] The upper axle clip 1 also includes two reinforcing members 12, which are longitudinally spaced at the bottom of the clip plate 11. Each reinforcing member 12 is used to abut against one longitudinal side of the axle 210 and to be fixedly connected to the axle 210. That is, the two reinforcing members 12 and the clip plate 11 together form a receiving groove with a bottom opening and transversely extending on both sides. The receiving groove can engage with the axle 210. This design can play a positioning role during the installation of the upper axle clip 1 and the axle 210, which helps to improve installation accuracy, facilitate operation, and improve installation efficiency. Furthermore, the upper axle clip 1 and the axle 210 adopt a multiple connection form of snap-fit ​​and fixed connection, which can significantly improve the connection strength, structural stability, and reliability between the upper axle clip 1 and the axle 210.

[0046] Specifically, the reinforcement component 12 is welded and fixed to the card plate 11, and the reinforcement component 12 is welded and fixed to the axle 210.

[0047] For example, the reinforcement member 12 includes an abutment plate 121 and two reinforcing plates 122. Specifically, the abutment plate 121 extends laterally, and the two reinforcing plates 122 are respectively disposed at the two lateral ends of the longitudinal outer side of the abutment plate 121, with each reinforcing plate 122 perpendicular to the abutment plate 121. The design of the reinforcing plates 122 is beneficial to improving the structural strength of the reinforcement member 12, effectively preventing structural distortion of the reinforcement member 12, and improving the structural stability of the reinforcement member 12.

[0048] Optionally, each reinforcing plate 122 can be in the form of a right triangle, a right trapezoid, etc.

[0049] The two reinforcing plates 122 and the abutment plate 121 are integrally bent into shape, which gives the reinforcing member 12 high structural strength.

[0050] refer to Figures 1-3 The pressure plate 2 is positioned above the upper shaft clip 1, and the pressure plate 2 and the upper shaft clip 1 together form a through hole that runs longitudinally through both sides, allowing the cantilever 120 to pass through. That is, in actual application, the pressure plate 2 is attached to the top of the cantilever 120.

[0051] The pressure plate 2 is provided with a second fixing hole 22, which is corresponding to the first fixing hole 111. Since the first fixing hole 111 corresponds to the opening on the cantilever 120, the fastener can be inserted into the first fixing hole 111, the second fixing hole 22 and the opening to further connect and fix the pressure plate 2, the upper shaft clip 1 and the cantilever 120, thereby improving the connection strength and structural stability.

[0052] Figure 5 This is a three-dimensional structural diagram of the lower shaft card 3 in this embodiment. Figure 6 This is a planar structural diagram of the lower shaft card 3 in this embodiment. Figure 7 This is a cross-sectional view of the lower shaft card 3 in this embodiment.

[0053] refer to Figure 2 , Figure 3 , Figures 5-7 The lower shaft clip 3 is located below the upper shaft clip 1. The lower shaft clip 3 includes a base plate 31 and a connecting seat 32. The lower longitudinal side of the connecting seat 32 has an opening forming a slot, which is used to engage and fix with the longitudinal end of the base plate 31.

[0054] For example, one longitudinal end of the substrate 31 is a snap-fit ​​portion 311, which snaps into a slot. Optionally, the longitudinal end of the snap-fit ​​portion 311 is provided with an inclined surface 312 that slopes outward from top to bottom. The slot is adapted to the inclined surface 312. This design increases the contact area between the snap-fit ​​portion 311 and the inner wall of the slot. The inclined surface 312 is also conducive to dispersing the load, achieving smooth load transfer, avoiding stress concentration, and homogenizing stress distribution. This reduces the risk of fatigue cracks and can significantly improve the strength, stability, and durability of the overall structure formed by the fixed connection of the substrate 31 and the connector 32.

[0055] Specifically, the outer periphery of the snap-fit ​​portion 311 is welded and fixed to the connecting seat 32. That is, the substrate 31 and the connecting seat 32 adopt multiple fixing methods of snap-fit ​​and welding, which increases the connection area between the substrate 31 and the connecting seat 32 and enables the weld structure to be distributed circumferentially between the snap-fit ​​portion 311 and the connecting seat 32. This is beneficial to uniformly distribute the stress at the connection between the substrate 31 and the connecting seat 32, reduce the risk of fatigue cracks, and significantly improve the overall structural strength and durability.

[0056] In actual use, the base plate 31 and the upper axle clip 1 form a transverse through hole that allows the axle 210 to pass through.

[0057] Optionally, each side of the substrate 31 is provided with an outward-facing weight-reduction groove 314, and the weight-reduction groove 314 is vertically connected. The design of the weight-reduction groove 314 can reduce the material used in the substrate 31, thereby reducing the weight of the substrate 31, which is conducive to achieving the lightweighting of the shaft card assembly 300.

[0058] Each side of the substrate 31 has a mounting hole 313 at both ends of its longitudinal direction. On the same side of the substrate 31, two mounting holes 313 are arranged on both sides of the weight reduction groove 314. Each mounting hole 313 corresponds to each through hole 13.

[0059] The connecting seat 32 is used to hinge with one of the suspension brackets 110. For example, on the same lateral side of the vehicle frame, the connecting seat 32 and the suspension bracket 110, which is longitudinally adjacent to it, are hinged by a hinge rod 400. Specifically, the suspension bracket 110 has a hinge seat on the side facing the connecting seat 32, and a hinge shaft passes through both the hinge seat and the hinge rod 400 to achieve a hinged connection between them.

[0060] Specifically, the connector 32 includes two connector plates 322, the bottom of which extends downward beyond the substrate 31. A slot is formed on the lower longitudinal side of each connector plate 322. That is, after the connector plate 322 is engaged with the substrate 31, it covers the longitudinal end of the substrate 31, resulting in a large contact area between the connector plate 322 and the substrate 31. Furthermore, each connector plate 322 is welded to the engaging portion 311 of the substrate 31 on both lateral sides of the slot to achieve circumferential welding between the connector plate 322 and the substrate 31.

[0061] Each connecting plate 322 is provided with a connecting hole 3221, which is used to hinge with the suspension bracket 110 of the suspension assembly 100. The end of the hinge rod 400 extends into the gap between the two connecting plates 322, and passes through the connecting hole 3221 on the two connecting plates 322 and the end of the hinge rod 400 through a hinge shaft, so as to realize the hinge of the hinge rod 400 and the connecting plate 322.

[0062] The connecting holes 3221 and slots on each connecting plate 322 are distributed longitudinally at intervals. Since the longitudinal end of the snap-fit ​​part 311 is provided with an inclined surface 312 that slopes outward from top to bottom, interference between the end of the hinge rod 400 and the longitudinal end of the base plate 31 can be avoided, thus preventing the hinge rod 400 from rotating and ensuring the smooth rotation of the hinge rod 400.

[0063] Optionally, the lower shaft clip 3 also includes two vertical stiffeners 33, which are spaced laterally on the top of the base plate 31. Specifically, the bottom of the vertical stiffeners 33 are welded and fixed to the base plate 31. The two vertical stiffeners 33 are distributed between the mounting holes 313 on both sides of the lateral direction to avoid interference with the mounting holes 313.

[0064] The longitudinal ends of each vertical stiffener 33 are fixed to the connecting seat 32. Optionally, the two vertical stiffeners 33 and the two connecting plates 322 are integrally formed in a one-to-one correspondence, which can reduce welds and improve structural strength.

[0065] Specifically, each vertical stiffener 33 has a receiving portion 331 with a top opening and transversely extending on both sides. The receiving portion 331 is adapted to the shape of the axle 210. The receiving portions 331 of the two vertical stiffeners 33 are transversely connected to jointly accommodate and support the axle 210. This design can play a positioning role during the installation of the lower axle clip 3 and the axle 210, and can achieve a high degree of matching between the vertical stiffeners 33 and the outer peripheral surface of the axle 210, thereby enhancing the fit of the assembly and improving the installation accuracy and connection reliability during use.

[0066] At this time, the receiving portions 331 of the two vertical stiffeners 33 are connected to the receiving groove of the upper shaft clip 1 through their top openings, thus forming a through hole together.

[0067] Each vertical stiffener 33 is inclined outward from top to bottom on the outer side away from the connecting seat 32. The geometric characteristics are used to improve the structural stability of the vertical stiffener 33. In addition, this can reduce the material used in the vertical stiffener 33 and reduce its weight, which is conducive to the lightweighting of the shaft clamp assembly 300.

[0068] Optionally, the lower axle clip 3 also includes two reinforcing plates 34. The two reinforcing plates 34 are longitudinally spaced between the two vertical stiffeners 33, and are arranged on the longitudinal outer side of the receiving portion 331. The bottom of each reinforcing plate 34 is fixed to the top of the base plate 31, and each reinforcing plate 34 is spaced from the longitudinal end of the base plate 31. Each reinforcing plate 34 abuts against one longitudinal side of the axle 210 and is used to fix it to the axle 210. The design of the reinforcing plates 34 effectively improves the structural strength of the lower axle clip 3. Furthermore, by fixing the reinforcing plates 34 to the axle 210 based on the snap-fit ​​connection between the vertical stiffeners 33 and the axle 210, a multi-layered connection structure is created between the lower axle clip 3 and the axle 210. This significantly improves the connection strength, structural stability, and reliability between the lower axle clip 3 and the axle 210.

[0069] Specifically, each reinforcing plate 34 is welded and fixed to the base plate 31, the vertical stiffener plate 33, and the axle 210 respectively.

[0070] refer to Figures 1-3 One end of the connector 4 is connected to the lower axle clip 3, and the other end extends upward through the upper axle clip 1 and around the pressure plate 2, then passes downward through the upper axle clip 1 and connects to the lower axle clip 3, so as to press and fix the pressure plate 2, cantilever 120, upper axle clip 1, axle 210 and lower axle clip 3, thereby realizing the connection between axle 210 and cantilever 120.

[0071] That is, the connector 4 is U-shaped. The connector 4 includes a crimping section 41 and two connecting sections 42, which are respectively located on both sides of the length direction of the crimping section 41, and each connecting section 42 is perpendicular to the crimping section 41. Specifically, in actual application, the crimping section 41 extends laterally, and the two connecting sections 42 are arranged on both sides of the crimping section 41 laterally.

[0072] The crimping section 41, facing the connecting section 42, is used to crimp the top surface of the pressure plate 2. Optionally, the side of the crimping section 41 facing the connecting section 42 is adapted to the top surface of the pressure plate 2 to achieve a high degree of matching between the crimping section 41 and the top surface of the pressure plate 2, thereby enhancing the fit and improving installation accuracy and connection reliability during use. Specifically, the top of the pressure plate 2 is provided with an upward-opening and horizontally penetrating crimping groove 21, which is adapted to the crimping section 41 and is used to accommodate the crimping section 41, thus limiting its position.

[0073] Two connecting segments 42 are arranged on the lateral sides of the pressure plate 2, and each connecting segment 42 abuts against one side of the pressure plate 2. Each connecting segment 42 passes through the through hole 13 on the corresponding upper shaft clip 1 and the mounting hole 313 on the base plate 31 from top to bottom, and is connected to the base plate 31.

[0074] Optionally, the connector 4 and the lower axle clip 3 are detachably connected. Specifically, a locking member is fitted on each connecting segment 42, and the locking member is screwed to the connecting segment 42 so that the locking member abuts against the bottom of the base plate 31, and the pressing segment 41 is pressed against the top of the pressure plate 2. Under the cooperation of the locking member and the pressing segment 41, the pressure plate 2, the cantilever 120, the upper axle clip 1, the axle 210, and the lower axle clip 3 can be pressed and fixed.

[0075] Among them, connector 4 is a U-bolt and locking component is a nut.

[0076] An example is provided of a method for connecting the cantilever 120 and the axle 210 using the aforementioned axle clamp assembly 300: The upper axle clip 1 and the lower axle clip 3 are fastened to the upper and lower ends of the axle 210, respectively. The pressure plate 2 is attached to the cantilever 120. The two connecting sections 42 of the connector 4 are distributed laterally and pass through the corresponding holes 13 on the upper axle clip 1 and mounting holes 313 on the lower axle clip 3 from top to bottom, so that the pressing section 41 of the connector 4 is pressed onto the pressure plate 2.

[0077] A locking member is screwed onto each connecting segment 42 of the connector 4, and the locking member is operated to abut against the bottom of the base plate 31, and the pressing segment 41 is pressed against the top of the pressure plate 2, thereby completing the initial installation of the shaft clip assembly 300.

[0078] The upper axle clamp 1's reinforcement member 12 and the axle 210 are welded and fixed together, and the lower axle clamp 3's reinforcing plate 34 and the axle 210 are welded and fixed together, thereby further enhancing the strength of the connection and the overall stability. Specifically, the bottom of the abutment plate 121 of the reinforcement member 12 is welded and fixed together with the axle 210, and the top of the reinforcing plate 34 is welded and fixed together with the axle 210.

[0079] As can be seen from the above technical solution, this utility model has at least the following advantages and positive effects: In this application, a slot is provided on the connector of the lower shaft card for engaging and fixing with the longitudinal end of the substrate. This design increases the contact area between the substrate and the connector, which helps to disperse the stress at the connection point, reduce the risk of fatigue cracks, and significantly improve the overall structural strength, stability and durability. Furthermore, the slot design can also play a positioning role in the assembly process of the connector and the substrate, which helps to improve the installation accuracy and increase the production efficiency of the lower shaft card.

[0080] Furthermore, the longitudinal end of the snap-fit ​​portion of the substrate is provided with an inclined surface that slopes outward from top to bottom. The slot is adapted to the inclined surface. This design increases the contact area between the snap-fit ​​portion and the inner wall of the slot. The inclined surface is also conducive to dispersing the load, achieving smooth load transfer, avoiding stress concentration, and facilitating the homogenization of stress distribution. This reduces the risk of fatigue cracks and can significantly improve the strength, stability, and durability of the overall structure formed by the snap-fit ​​portion and the connecting seat.

[0081] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. An axle clamp assembly for connecting an axle of a traveling mechanism and a cantilever of a suspension assembly, the axle being located below the cantilever; characterized in that, The shaft card assembly includes: Upper shaft card; A pressure plate is positioned above the upper shaft clip, and the pressure plate and the upper shaft clip together form a through hole that extends longitudinally through both sides, the through hole being used for the cantilever to pass through; The lower axle clip is located below the upper axle clip; the lower axle clip includes a base plate and a connecting seat, the base plate and the upper axle clip forming a through hole that extends laterally through both sides, the through hole being for the axle to pass through; the lower longitudinal side opening of the connecting seat forms a slot, the slot being for engaging and fixing with the longitudinal end of the base plate; the connecting seat is used for hinged to the suspension bracket of the suspension assembly; Two connecting parts are spaced apart along the longitudinal direction. One end of each connecting part is connected to the lower axle clip, and the other end extends upward through the upper axle clip and around the pressure plate, then downward through the upper axle clip and connects to the lower axle clip, so as to press and fix the pressure plate, the cantilever, the upper axle clip, the axle, and the lower axle clip.

2. The shaft card assembly according to claim 1, characterized in that, One of the longitudinal ends of the substrate is a snap-fit ​​portion, which snaps into the slot. The longitudinal end of the snap-fit ​​portion is provided with an inclined surface that slopes outward from top to bottom, and the slot is adapted to the inclined surface. The connector includes two connecting plates, the bottom of which extends downward beyond the base plate, and the slot is formed on the lower longitudinal side of each connecting plate.

3. The shaft card assembly according to claim 2, characterized in that, The connecting plate is provided with connecting holes for hinged connection with the suspension bracket of the suspension assembly. The connecting holes and the slots are distributed longitudinally at intervals.

4. The shaft card assembly according to claim 1, characterized in that, The lower shaft clip also includes two vertical stiffeners, which are arranged laterally at the top of the base plate, and the longitudinal ends of each vertical stiffener are fixed to the connecting seat. Each of the vertical stiffeners has a receiving portion with a top opening and extending laterally on both sides. The receiving portion is adapted to the shape of the axle. The receiving portions of the two vertical stiffeners are connected laterally to jointly receive and support the axle.

5. The shaft card assembly according to claim 4, characterized in that, The substrate has a mounting hole at each of its longitudinal ends on each of its transverse sides for the connector to pass through; the substrate has a weight-reducing groove with an outward opening on each of its transverse sides; and the two vertical stiffeners are distributed between the mounting holes on the transverse sides. The connecting seat includes two connecting plates, which are integrally formed with the two vertical stiffeners in a one-to-one correspondence.

6. The shaft card assembly according to claim 4, characterized in that, The vertical stiffener plate is inclined outward from top to bottom from the outer side of the connecting seat; The lower axle clip also includes two reinforcing plates, which are longitudinally spaced between the two vertical stiffeners and are arranged on the longitudinal outer side of the receiving portion. The bottom of each reinforcing plate is fixed to the top of the base plate, and each reinforcing plate is spaced from the longitudinal end of the base plate. Each reinforcing plate is used to abut against the longitudinal side of the axle and to be fixed to the axle.

7. The shaft card assembly according to claim 1, characterized in that, The upper shaft clip includes a clip plate, and each of the longitudinal ends on each of the transverse sides of the clip plate is provided with a through hole for the connector to pass through; The card plate has concave surfaces with outward openings on each of its lateral sides.

8. The shaft card assembly according to claim 7, characterized in that, The upper axle clamp also includes two reinforcing members, which are longitudinally spaced at the bottom of the clamp plate. Each reinforcing member is used to abut against the longitudinal side of the axle and to be fixedly connected to the axle. The reinforcement includes an abutment plate and two reinforcing plates. The abutment plate extends laterally, and the two reinforcing plates are respectively disposed at the two lateral ends of the longitudinal outer side of the abutment plate. The two reinforcing plates and the abutment plate are integrally bent into shape.

9. The shaft clamp assembly according to claim 1, characterized in that, The connector is detachably connected to the lower shaft clip; The connector is a U-bolt.

10. A vehicle, characterized in that, include: Frame; A suspension assembly includes two suspension components spaced laterally at the bottom of the vehicle frame, each suspension component including two suspension brackets spaced longitudinally and a cantilever connecting the two suspension brackets; A traveling mechanism is located below the cantilever; the traveling mechanism includes a transversely arranged axle and two traveling wheels located at both transverse ends of the axle, the traveling wheels being rotatably connected to the axle; According to any one of claims 1 to 9, each lateral end of the axle is connected to the cantilever of a suspension assembly via an axle clamp assembly, and the lower axle clamp of the axle clamp assembly is hinged to one of the suspension brackets of the corresponding suspension assembly.

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