Steering gear mounting structure and vehicle

Abstract

This application relates to the field of vehicle chassis technology, and provides a steering gear mounting structure and a vehicle. The steering gear mounting structure includes a frame crossbeam, a reinforcing plate, and a mounting sleeve. The frame crossbeam has mounting holes at its length-direction ends. The reinforcing plate is fixedly connected to the length-direction ends of the frame crossbeam and has mounting through holes corresponding to the mounting holes. The mounting sleeve is located at the length-direction ends of the frame crossbeam, passing through the mounting holes and mounting through holes, and is fixedly connected to the frame crossbeam. The mounting sleeve is used to mount the steering gear. This configuration utilizes the reinforcing plate to structurally strengthen the connection between the frame crossbeam and the mounting sleeve, i.e., to structurally strengthen the steering gear mounting point, effectively reducing the risk of cracking and weld failure at the connection between the frame crossbeam and the mounting sleeve due to the large forces they need to withstand, thus meeting the needs of markets operating in harsh conditions.

Description

Technical Field

[0001] This application relates to the field of vehicle chassis technology, and in particular to a steering gear mounting structure and a vehicle. Background Technology

[0002] With the rapid development of the automotive industry, the car sales market is no longer limited to the domestic market and has gradually expanded to overseas markets. Therefore, the vehicles produced need to meet the needs of different regional market conditions, especially in areas with harsh market conditions, which place higher demands on vehicle performance.

[0003] The steering gear is a crucial component of a vehicle. It amplifies the steering torque from the steering wheel and changes the direction of force transmission, ultimately driving the steering tie rod to turn the wheels. To mount the steering gear on a vehicle, a steering gear mounting structure is typically installed on the chassis. This structure usually includes a chassis crossbeam and a mounting sleeve welded to the crossbeam. The steering gear is mounted on the mounting sleeve. During operation, the steering force is transmitted to the mounting sleeve, then to the chassis crossbeam, and finally to the wheels, causing wheel deflection.

[0004] However, when vehicles are driven in areas with harsh market conditions, they are subjected to greater torsional forces. Combined with the steering force applied by the steering gear, this results in greater stress on the connection points between the frame crossbeams and the mounting sleeves, making them prone to cracking and weld failure. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a steering gear mounting structure and vehicle to improve the connection strength between the frame crossbeam and the mounting sleeve and reduce the risk of cracking and welding failure.

[0006] The first aspect of this application provides a steering gear mounting structure, including:

[0007] The frame crossbeam has mounting holes at each end along its length.

[0008] A reinforcing plate is fixedly connected to the end of the crossbeam of the vehicle frame along the length direction, and the reinforcing plate is provided with mounting through holes corresponding to the mounting holes;

[0009] A mounting sleeve is provided at the end of the crossbeam of the vehicle frame along its length. The mounting sleeve passes through the mounting hole and the mounting through hole and is fixedly connected to the crossbeam of the vehicle frame. The mounting sleeve is used to install the steering gear.

[0010] The steering gear mounting structure provided in this application features a reinforcing plate at the end of the frame crossbeam along its length. The reinforcing plate has mounting holes corresponding to the mounting holes on the frame crossbeam. A mounting sleeve for mounting the steering gear passes through the mounting holes and mounting holes and is fixedly connected to the frame crossbeam. This configuration strengthens the connection between the frame crossbeam and the mounting sleeve, effectively reinforcing the steering gear mounting point. Without replacing the frame crossbeam, this improves its structural strength and fatigue life, effectively reducing the risk of cracking and weld failure at the connection between the frame crossbeam and the mounting sleeve due to the large forces it must withstand. This allows vehicles using this steering gear mounting structure to meet the needs of different regional market conditions, especially those in harsh environments.

[0011] Optionally, the reinforcing plate includes a top plate, a bottom plate, and a side plate. The top plate and the bottom plate are respectively connected to the upper and lower edges of the side plate and are disposed opposite to each other. The top plate, the bottom plate, and the side plate are respectively welded and fixed to the corresponding parts of the frame crossbeam.

[0012] By welding and fixing the top, bottom, and side plates of the reinforcing plate to the corresponding parts of the frame crossbeam, the reinforcing plate and the frame crossbeam are fixed by multi-face welding. In this way, the added reinforcing plate changes the traditional single-layer plate structure of the position on the frame crossbeam where the mounting sleeve is fixed (i.e., the steering gear mounting point) to a double-layer plate structure of a single-layer plate plus a reinforcing plate. This effectively improves the structural strength and fatigue life of the connection between the frame crossbeam and the mounting sleeve, and effectively reduces the risk of cracking and weld failure caused by the lower structural strength but greater force required at the connection between the frame crossbeam and the mounting sleeve.

[0013] Optionally, the frame crossbeam includes a top wall, a bottom wall, and a rear side wall. The top wall and the bottom wall are respectively connected to the upper and lower edges of the rear side wall, and together with the rear side wall, they form a groove-shaped structure.

[0014] The reinforcing plate is disposed within the trough structure. The top plate is attached to and welded to the top wall, the bottom plate is attached to and welded to the bottom wall, and the side plate is attached to and welded to the rear side wall.

[0015] Through the above configuration, the reinforcing plate is placed within the channel-shaped structure formed by the frame crossbeam. This allows for structural reinforcement of the frame crossbeam without altering its external structure. Furthermore, the reinforcing plate can be shaped to fit the frame crossbeam, meaning it can be conformally designed to the shape of the frame crossbeam. Specifically, the top, bottom, and side plates of the reinforcing plate can be combined to form a U-shaped reinforcing plate that conforms to the shape of the frame crossbeam. This enables multi-faceted bonding and welding between the reinforcing plate and the frame crossbeam, thereby more effectively improving the structural strength and fatigue life of the frame crossbeam.

[0016] Optionally, the two ends of the side plate portion along the length direction of the frame crossbeam are welded and fixed to the rear side wall, the edge of the top plate portion away from the side plate portion is welded and fixed to the top wall, and the edge of the bottom plate portion away from the side plate portion is welded and fixed to the bottom wall.

[0017] The above setup enables the reinforcement plate to be welded and fixed to the frame crossbeam at multiple locations, thereby effectively ensuring the firmness of the welded and fixed reinforcement plate and frame crossbeam.

[0018] Optionally, the mounting holes are provided on the top wall and the bottom wall, and extend vertically through the top wall and the bottom wall; the mounting through holes are provided on the top plate portion and the bottom plate portion, and extend vertically through the top plate portion and the bottom plate portion.

[0019] With the above configuration, the mounting sleeve passes through the top wall and top plate, bottom plate and bottom wall in sequence. By utilizing the top and bottom plates of the reinforcing plate, the number of plates through which the mounting sleeve passes can be increased, thereby improving the stability of the mounting sleeve on the frame crossbeam.

[0020] Optionally, both the mounting hole and the mounting via are circular holes, and the diameter of the mounting via is greater than or equal to the diameter of the mounting hole.

[0021] The above settings ensure that the diameter of the mounting through hole is equal to or slightly larger than the diameter of the mounting hole, so that after the reinforcing plate is fixed to the frame crossbeam, the mounting sleeve can pass smoothly through the mounting hole and the mounting through hole. When the diameter of the mounting through hole is slightly larger than the diameter of the mounting hole, it allows for a certain degree of misalignment between the mounting through hole and the mounting hole, thus reducing the installation positioning accuracy requirements when the reinforcing plate is fixed to the frame crossbeam.

[0022] Optionally, the end of the frame crossbeam along the length direction is provided with an outward protrusion, the outward protrusion protrudes toward the rear side of the frame crossbeam, the reinforcing plate is formed with a protrusion corresponding to the outward protrusion, and the mounting sleeve is fixed at the outward protrusion.

[0023] The above-mentioned design increases the size of the mounting sleeve position on the frame crossbeam by utilizing the outward protrusion, thereby facilitating the installation of the mounting sleeve on the frame crossbeam and improving the stability of the mounting sleeve on the frame crossbeam through the increased size design.

[0024] Optionally, the top of the protruding portion forms an arched surface along the protrusion direction, and the top of the protruding portion along the protrusion direction forms a planar region or an arc region corresponding to the arched surface, wherein the curvature of the arc region is less than the curvature of the arched surface.

[0025] By using the above settings, the planar or arc-shaped area formed on the protrusion of the reinforcing plate is used for installation and positioning with the arched arc-shaped area formed on the outer protrusion of the frame crossbeam. This makes the welding positioning of the reinforcing plate and the frame crossbeam more precise and stable, thereby effectively improving the quality of the edge weld when the reinforcing plate and the frame crossbeam are welded together.

[0026] Optionally, the mounting sleeve includes a tube body and a tube head connected to the tube body. The tube body is disposed in the mounting hole and the mounting through hole. The tube head is located on the top outer side of the frame crossbeam and is welded and fixed to the top of the frame crossbeam. The end of the tube body away from the tube head passes through the mounting hole and is welded and fixed to the bottom of the frame crossbeam.

[0027] The above setup ensures that the end of the mounting sleeve is welded and fixed to the top of the frame crossbeam, and the end of the sleeve away from the end is welded and fixed to the bottom of the frame crossbeam, thereby ensuring the stability of the mounting sleeve welded and fixed to the frame crossbeam.

[0028] A second aspect of this application provides a vehicle including a steering gear mounting structure as described in any of the preceding claims. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the assembly structure of the steering gear mounting structure on the longitudinal beam of the vehicle frame, provided in an embodiment of this application;

[0032] Figure 2 This is a three-dimensional structural diagram of the steering gear mounting structure provided in the embodiments of this application;

[0033] Figure 3 for Figure 2 A three-dimensional structural diagram of the steering gear mounting structure from another perspective;

[0034] Figure 4 for Figure 2 A schematic front view of the steering gear mounting structure shown.

[0035] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction;

[0036] Figure 6 for Figure 2 A top view of the steering gear mounting structure shown.

[0037] Figure 7 for Figure 2 A three-dimensional structural view of the reinforcing plate located on the left side of the steering gear mounting structure shown.

[0038] Figure 8 for Figure 7 The diagram shows the main structural view of the reinforcing plate.

[0039] Figure 9 for Figure 7 A top view of the reinforcing plate shown.

[0040] Figure 10 for Figure 2 A three-dimensional structural diagram of the reinforcing plate located on the right side of the steering gear mounting structure shown.

[0041] Figure 11 for Figure 10 The diagram shows the main structural view of the reinforcing plate.

[0042] Figure 12 for Figure 10 A top view of the reinforcing plate shown.

[0043] Figure 13 for Figure 10 A side view of the reinforcing plate shown.

[0044] Figure 14 A finite element analysis diagram illustrating the losses in a traditional steering gear mounting structure;

[0045] Figure 15 A finite element analysis diagram illustrating the loss situation of the steering gear mounting structure provided in the embodiments of this application.

[0046] Among them, 1. Frame crossbeam; 10. Mounting hole; 11. Top wall; 12. Bottom wall; 13. Rear side wall; 14. Outward protrusion; 141. Arched arc surface; 15. Welding positioning hole;

[0047] 2. Reinforcing plate; 20. Mounting through hole; 21. Top plate; 22. Bottom plate; 23. Side plate; 24. Protrusion; 241. Planar area;

[0048] 3. Install the sleeve; 31. Hollow hole;

[0049] 4. Frame longitudinal beams;

[0050] 5. Lower control arm mounting bracket. Detailed Implementation

[0051] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0053] The steering gear mounting structure and vehicle provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0054] Reference Figures 1 to 6 As shown, some embodiments of this application provide a steering gear mounting structure, including: a frame crossbeam 1, a reinforcing plate 2, and a mounting sleeve 3.

[0055] The frame crossbeam 1 has a mounting hole 10 at its end along the length direction; the reinforcing plate 2 is fixedly connected to the end of the frame crossbeam 1 along the length direction, and the reinforcing plate 2 has a mounting through hole 20 corresponding to the mounting hole 10; the mounting sleeve 3 is located at the end of the frame crossbeam 1 along the length direction, the mounting sleeve 3 passes through the mounting hole 10 and the mounting through hole 20, and is fixedly connected to the frame crossbeam 1, and the mounting sleeve 3 is used to install the steering gear.

[0056] It should be noted that the length direction of the frame crossbeam 1 is also the width direction of the vehicle, or the left-right direction of the vehicle, as shown in the reference. Figure 1 As shown in the a direction.

[0057] The steering gear mounting structure provided in this application embodiment features a reinforcing plate 2 at the end of the frame crossbeam 1 along its length. The reinforcing plate 2 has mounting through holes 20 corresponding to the mounting holes 10 on the frame crossbeam 1. A mounting sleeve 3 for mounting the steering gear passes through the mounting holes 10 and 20 and is fixedly connected to the frame crossbeam 1. This configuration strengthens the connection between the frame crossbeam 1 and the mounting sleeve 3, effectively reinforcing the steering gear mounting point. Without replacing the frame crossbeam 1, this improves the structural strength and fatigue life of the frame crossbeam 1, thereby effectively reducing the risk of cracking and weld failure at the connection between the frame crossbeam 1 and the mounting sleeve 3 due to the large forces it needs to withstand. This allows vehicles using this steering gear mounting structure to meet the needs of different regional market conditions, especially those in areas with harsh operating conditions.

[0058] In specific implementation, refer to Figure 1 As shown, mounting sleeves 3 are installed at both ends of the frame crossbeam 1 along its length. Both mounting sleeves 3 are used to install steering gears. That is, both ends of the frame crossbeam 1 along its length have steering gear mounting points. Reinforcing plates 2 can be installed at both ends of the frame crossbeam 1 along its length to structurally reinforce the steering gear mounting points at both ends. Specifically, mounting holes 10 are provided at both ends of the frame crossbeam 1 along its length. Two reinforcing plates 2 are fixedly connected to both ends of the frame crossbeam 1 along its length. The reinforcing plates 2 are provided with mounting through holes 20 corresponding to the mounting holes 10. Two mounting sleeves 3 are respectively provided at both ends of the frame crossbeam 1 along its length. The mounting sleeves 3 pass through the mounting holes 10 and the mounting through holes 20 and are fixedly connected to the frame crossbeam 1.

[0059] Reference Figure 1 The diagram shows the assembly structure of the steering gear mounting structure provided in this embodiment on the frame longitudinal beam 4. Generally, a vehicle frame includes two opposing and spaced-apart frame longitudinal beams 4, spaced apart along the width of the vehicle. The steering gear mounting structure provided in this embodiment connects the two frame longitudinal beams 4. Specifically, lower control arm mounting brackets 5 are connected to both ends of the frame crossbeam 1 along its length. Each lower control arm mounting bracket 5 is connected to one frame longitudinal beam 4, so that the frame crossbeam 1 is mounted between the two frame longitudinal beams 4 using the two lower control arm mounting brackets 5. A mounting sleeve 3 is connected to both ends of the frame crossbeam 1 along its length. The mounting sleeve 3 is used to mount the steering gear. Specifically, the mounting sleeve 3 has a hollow hole 31, and the steering gear is connected to the hollow hole 31. During operation, the steering force is transmitted to the mounting sleeve 3, and then to the frame crossbeam 1 connected to the mounting sleeve 3, ultimately acting on the wheel to cause wheel deflection.

[0060] Reference Figures 2 to 6The diagram shown is a schematic diagram of the steering gear mounting structure provided in an embodiment of this application. Figure 2 In the figure, direction 'a' indicates the length direction of the frame crossbeam 1. The frame crossbeam 1 has mounting holes 10 at both ends along its length for connecting mounting sleeves 3, and reinforcing plates 2 at both ends along its length. The reinforcing plates 2 have mounting through holes 20 corresponding to the mounting holes 10 on the frame crossbeam 1. The mounting sleeves 3 for mounting the steering gear can pass through the mounting holes 10 and 20 and be fixedly connected to the frame crossbeam 1.

[0061] Reference Figures 7 to 9 As shown, Figure 2 The diagram shows the structure of the reinforcing plate 2 located on the left side of the steering gear mounting structure; refer to... Figures 10 to 13 As shown, Figure 2 The diagram shows the structure of the reinforcing plate 2 on the right side of the steering gear mounting structure. In a specific implementation, the reinforcing plate 2 on the left and the reinforcing plate 2 on the right can be arranged symmetrically.

[0062] In some embodiments, refer to Figures 7 to 13 As shown, the reinforcing plate 2 includes a top plate portion 21, a bottom plate portion 22, and a side plate portion 23. The top plate portion 21 and the bottom plate portion 22 are respectively connected to the upper and lower edges of the side plate portion 23 and are disposed opposite to each other. This arrangement allows the top plate portion 21, the bottom plate portion 22, and the side plate portion 23 of the reinforcing plate 2 to jointly form a U-shaped reinforcing plate. Specifically, the shape of the reinforcing plate 2 can be designed to conform to the shape of the frame crossbeam 1, so that the reinforcing plate 2 fits the frame crossbeam 1 better and provides better local reinforcement to the frame crossbeam 1.

[0063] Reference Figures 2 to 6 As shown, the top plate 21, bottom plate 22, and side plate 23 of the reinforcing plate 2 are welded and fixed to the corresponding parts of the frame crossbeam 1. This arrangement allows for multi-faceted welding and fixing of the reinforcing plate 2 to the frame crossbeam 1, thereby improving the firmness of the fixation between the reinforcing plate 2 and the frame crossbeam 1. The addition of the reinforcing plate 2 transforms the traditional single-layer plate structure of the location on the frame crossbeam 1 used to fix the mounting sleeve 3 (i.e., the steering gear mounting point) into a double-layer plate structure consisting of a single-layer plate and the reinforcing plate 2. This effectively improves the structural strength and fatigue life of the connection between the frame crossbeam 1 and the mounting sleeve 3, and effectively reduces the risk of cracking and weld failure at the connection between the frame crossbeam 1 and the mounting sleeve 3 due to lower structural strength but higher required force.

[0064] In some embodiments, refer to Figures 2 to 6As shown, the frame crossbeam 1 includes a top wall 11, a bottom wall 12, and a rear side wall 13. The top wall 11 and the bottom wall 12 are respectively connected to the upper and lower edges of the rear side wall 13, and together with the rear side wall 13, they form a channel-shaped structure. The reinforcing plate 2 is disposed in the channel-shaped structure. The top plate portion 21 is attached to the top wall 11 and welded to it. The bottom plate portion 22 is attached to the bottom wall 12 and welded to it. The side plate portion 23 is attached to the rear side wall 13 and welded to it.

[0065] This configuration allows the reinforcing plate 2 to be placed within the channel-shaped structure formed by the frame crossbeam 1, thereby strengthening the frame crossbeam 1 without altering its external structure. Furthermore, the shape of the reinforcing plate 2 is adapted to the frame crossbeam 1; that is, the reinforcing plate 2 is conformally designed to the shape of the frame crossbeam 1. This means that the top plate 21 of the reinforcing plate 2 is attached to and welded to the top wall 11 of the frame crossbeam 1, the bottom plate 22 is attached to and welded to the bottom wall 12 of the frame crossbeam 1, and the side plate 23 is attached to and welded to the rear side wall 13 of the frame crossbeam 1. This multi-faceted attachment and welding of the reinforcing plate 2 to the frame crossbeam 1 effectively improves the structural strength and fatigue life of the frame crossbeam 1.

[0066] It should be noted that, in specific implementation, the frame crossbeam 1 may include a rear crossbeam plate and a front crossbeam plate that are interlocked. The rear crossbeam plate and the front crossbeam plate may be arranged opposite to each other and interlocked along the longitudinal direction of the vehicle. Specifically, the rear crossbeam plate may be a groove-shaped structure with the slot facing forward, and the front crossbeam plate may be a groove-shaped structure with the slot facing backward. The slots of the rear crossbeam plate and the front crossbeam plate are opposite to each other and interlocked. The rear crossbeam plate may include the aforementioned top wall 11, bottom wall 12, and rear side wall 13. The reinforcing plate 2 is disposed within the groove-shaped structure formed by the rear crossbeam plate, and the mounting sleeve 3 is installed on the rear crossbeam plate.

[0067] In some embodiments, the two ends of the side plate portion 23 along the length of the frame crossbeam 1 are welded and fixed to the rear side wall 13, the edge of the top plate portion 21 away from the side plate portion 23 is welded and fixed to the top wall 11, and the edge of the bottom plate portion 22 away from the side plate portion 23 is welded and fixed to the bottom wall 12. This arrangement enables the reinforcing plate 2 to be welded and fixed to the frame crossbeam 1 at multiple locations, thereby effectively ensuring the firmness of the welded fixation between the reinforcing plate 2 and the frame crossbeam 1.

[0068] In some embodiments, refer to Figure 2 , Figure 3 and Figure 6As shown, mounting holes 10 are provided on the top wall 11 and the bottom wall 12, and extend vertically through the top wall 11 and the bottom wall 12; mounting through holes 20 are provided on the top plate portion 21 and the bottom plate portion 22, and extend vertically through the top plate portion 21 and the bottom plate portion 22. In specific assembly, the mounting sleeve 3 passes through the top wall 11 and the top plate portion 21, the bottom plate portion 22 and the bottom wall 12 in sequence, thereby utilizing the top plate portion 21 and the bottom plate portion 22 of the reinforcing plate 2 to increase the number of plate layers through which the mounting sleeve 3 passes, thereby improving the stability of the mounting sleeve 3 fixed on the frame crossbeam 1.

[0069] In some embodiments, refer to Figure 2 , Figure 3 and Figure 6 As shown, both mounting hole 10 and mounting through hole 20 are circular holes, and the diameter of mounting through hole 20 is greater than or equal to the diameter of mounting hole 10. This arrangement allows mounting sleeve 3 to pass smoothly through mounting hole 10 and mounting through hole 20, thereby enabling mounting sleeve 3 to be installed on the frame crossbeam 1.

[0070] In practical implementation, the diameter of the mounting through hole 20 can be set to be slightly larger than the diameter of the mounting hole 10. For example, the diameter of the mounting through hole 20 can be set to be 2mm larger than the diameter of the mounting hole 10, that is, 1mm larger on one side. This setting allows for a certain degree of misalignment between the mounting through hole 20 and the mounting hole 10, thus reducing the installation positioning accuracy requirements when the reinforcing plate 2 is fixedly connected to the frame crossbeam 1.

[0071] In some embodiments, refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the end of the frame crossbeam 1 along its length is provided with an outward protrusion 14, which protrudes towards the rear side of the frame crossbeam 1. The reinforcing plate 2 has a protrusion 24 corresponding to the outward protrusion 14, and the mounting sleeve 3 is fixed at the outward protrusion 14. This arrangement increases the size of the frame crossbeam 1 for fixing the mounting sleeve 3 by utilizing the outward protrusion 14, thereby facilitating the installation of the mounting sleeve 3 on the frame crossbeam 1 and improving the stability of the mounting sleeve 3 on the frame crossbeam 1 through the increased size design.

[0072] In specific implementation, protrusions 14 can be provided at both ends of the frame crossbeam 1 along the length direction. That is, protrusions 14 are provided at both ends of the frame crossbeam 1 along the length direction for fixing the mounting sleeves 3, so as to facilitate the installation and fixing of the two mounting sleeves 3 on the frame crossbeam 1.

[0073] It should be noted that the reinforcing plate 2 is usually formed by sheet metal stamping. If the protrusion 24 on the reinforcing plate 2 has the same curvature as the protrusion 14 on the frame crossbeam 1, it is easy to cause poor fit between the edge of the reinforcing plate 2 and the welding connection part of the frame crossbeam 1, resulting in poor welding connection strength. In order to ensure the welding connection effect between the reinforcing plate 2 and the frame crossbeam 1, a certain gap space can be set between the protrusion 24 of the reinforcing plate 2 and the protrusion 14 of the frame crossbeam 1 to ensure good fit between the edge of the reinforcing plate 2 and the welding connection part of the frame crossbeam 1, thereby achieving a good welding effect.

[0074] In some embodiments, refer to Figure 6 As shown, the outer protrusion 14 of the frame crossbeam 1 forms an arched arc surface 141 at the top along the protruding direction, referring to... Figure 9 , Figure 12 and Figure 13 As shown, the top of the protrusion 24 of the reinforcing plate 2 forms a planar region 241 corresponding to the arched surface 141 along the protrusion direction. That is to say, the area on the protrusion 24 of the reinforcing plate 2 that corresponds to the arched surface 141 of the outward protrusion 14 is not an arched region that is completely fitted with the arched surface 141, but a planar region 241.

[0075] This configuration ensures a certain gap between the planar area 241 of the protrusion 24 and the arched surface 141 of the outer protrusion 14, guaranteeing a good fit between the edge of the reinforcing plate 2 and the welded connection of the frame crossbeam 1, thus achieving a good welding effect. Furthermore, the planar area 241 on the protrusion 24 of the reinforcing plate 2 and the arched surface 141 on the outer protrusion 14 of the frame crossbeam 1 can be used for installation and positioning, limiting the left and right displacement of the reinforcing plate 2 along the length of the frame crossbeam 1. This makes the welding positioning of the reinforcing plate 2 and the frame crossbeam 1 more precise and stable, thereby effectively improving the quality of the edge weld when the reinforcing plate 2 and the frame crossbeam 1 are welded together.

[0076] In specific implementation, the outer protrusion 14 of the frame crossbeam 1 forms an arched surface 141 at its top along the protrusion direction. A first transition region connecting to the arched surface 141 is formed on both sides of the arched surface 141 along the length of the frame crossbeam 1. The first transition region gradually protrudes towards the rear side of the frame crossbeam 1 in the direction closer to the arched surface 141. Correspondingly, the protrusion 24 of the reinforcing plate 2 forms a planar region 241 corresponding to the arched surface 141 at its top along the protrusion direction. A second transition region connecting to the planar region 241 is formed on both sides of the planar region 241 along the length of the frame crossbeam 1. The second transition region gradually protrudes towards the rear side of the frame crossbeam 1 in the direction closer to the planar region 241. (Refer to...) Figure 9 and Figure 12The top view structural schematic diagram of the reinforcing plate 2 shown, the convex portion 24 on the reinforcing plate 2 is formed into a "ji" shaped boss structure.

[0077] In some other embodiments, the outer convex portion 14 of the vehicle frame cross member 1 has an arched arc surface 141 protruding towards the rear side of the vehicle frame cross member 1. The area of the convex portion 24 of the reinforcing plate 2 corresponding to the arched arc surface 141 forms an arc surface area, and the curvature of the arc surface area is smaller than the curvature of the arched arc surface 141 of the outer convex portion 14. That is to say, the area of the convex portion 24 of the reinforcing plate 2 corresponding to the arched arc surface 141 of the outer convex portion 14 is not an arched area that completely fits the arched arc surface 141, but an arc surface area with a curvature smaller than the arched arc surface 141.

[0078] With such a setting, there is a certain gap space between the arc surface area of the convex portion 24 and the arched arc surface 141 of the outer convex portion 14, so as to ensure that the edge of the reinforcing plate 2 fits well with the welded connection part of the vehicle frame cross member 1, thereby achieving a good welding effect; and the arc surface area on the convex portion 24 of the reinforcing plate 2 can be used for installation positioning with the arched arc surface 141 on the outer convex portion 14 of the vehicle frame cross member 1, restricting the left and right misalignment of the reinforcing plate 2 along the length direction of the vehicle frame cross member 1, making the welding positioning of the reinforcing plate 2 and the vehicle frame cross member 1 more accurate and stable, and thus effectively improving the quality of the edge weld bead when the reinforcing plate 2 and the vehicle frame cross member 1 are welded at the edge.

[0079] In some embodiments, referring to Figure 2 shown, a welding positioning hole 15 is provided at a position on the vehicle frame cross member 1 close to the reinforcing plate 2. In order to avoid this welding positioning hole 15, one end of the reinforcing plate 2 along the length direction of the vehicle frame cross member 1 close to the welding positioning hole 15 can be set as an inclined end face.

[0080] In some embodiments, referring to Figure 1 shown, the mounting sleeve 3 includes a tube body and a tube head connected to the tube body. The tube body passes through the mounting hole 10 and the mounting through hole 20, and the tube head is located outside the top of the vehicle frame cross member 1 and is welded and fixed to the top of the vehicle frame cross member 1. One end of the tube body away from the tube head passes through the mounting hole 10 and is welded and fixed to the bottom of the vehicle frame cross member 1. With such a setting, the tube head of the mounting sleeve 3 is welded and fixed to the top of the vehicle frame cross member 1, and one end of the tube body away from the tube head is welded and fixed to the bottom of the vehicle frame cross member 1, so as to ensure the stability of the welding and fixing of the mounting sleeve 3 and the vehicle frame cross member 1.

[0081] It should be noted that during assembly, the reinforcing plate 2 can be welded and fixed to the corresponding part of the frame crossbeam 1 first. Then, the mounting sleeve 3 is passed through the mounting hole 10 on the frame crossbeam 1 and the mounting through hole 20 on the reinforcing plate 2, and then the mounting sleeve 3 is welded and fixed to the frame crossbeam 1. It is understood that there can be no direct connection between the mounting sleeve 3 and the reinforcing plate 2. That is, after adding the reinforcing plate 2, there is no need to change the original welding connection operation between the mounting sleeve 3 and the frame crossbeam 1, nor is there an additional welding connection operation between the mounting sleeve 3 and the reinforcing plate 2, thus making the entire assembly operation simpler and faster.

[0082] To better verify the effectiveness of the steering gear mounting structure provided in this application embodiment, finite element analysis was performed on the damage of a traditional steering gear mounting structure (where no reinforcing plate is provided at the connection between the frame crossbeam and the mounting sleeve) and the steering gear mounting structure provided in this application embodiment (where a reinforcing plate 2 is provided at the connection between the frame crossbeam 1 and the mounting sleeve 3). (Refer to...) Figure 14 The image shown is a schematic diagram of finite element simulation analysis of damage to a traditional steering gear mounting structure; refer to... Figure 15 The figure shown is a schematic diagram of finite element simulation analysis of the damage to the steering gear mounting structure provided in the embodiment of this application.

[0083] Reference Figure 14 As shown, in a traditional steering gear mounting structure, the maximum damage value at the welded joint between the frame crossbeam and the mounting sleeve is 6.8; (Refer to...) Figure 15 As shown, in the steering gear mounting structure provided in this application embodiment, the maximum damage value of the welded part between the frame crossbeam 1 and the mounting sleeve 3 is 0.79. In comparison, it can be seen that the performance of the steering gear mounting structure provided in this application embodiment at this welded part is improved by 8.6 times.

[0084] Other embodiments of this application provide a vehicle including a steering gear mounting structure as described in any of the above embodiments.

[0085] The vehicle provided in this application embodiment has the beneficial effects of the steering gear mounting structure of any of the above embodiments because it includes the steering gear mounting structure of any of the above embodiments, which will not be repeated here.

[0086] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0087] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steering gear mounting structure, characterized in that, include: A frame crossbeam (1) is provided with mounting holes (10) at its ends along the length direction; A reinforcing plate (2) is fixedly connected to the end of the crossbeam (1) along the length direction of the frame. The reinforcing plate (2) is provided with mounting through holes (20) corresponding to the mounting holes (10). The mounting sleeve (3) is located at the end of the crossbeam (1) along the length direction. The mounting sleeve (3) passes through the mounting hole (10) and the mounting through hole (20) and is fixedly connected to the crossbeam (1). The mounting sleeve (3) is used to install the steering gear.

2. The steering gear mounting structure according to claim 1, characterized in that, The reinforcing plate (2) includes a top plate (21), a bottom plate (22), and a side plate (23). The top plate (21) and the bottom plate (22) are respectively connected to the upper and lower edges of the side plate (23) and are arranged opposite to each other. The top plate (21), the bottom plate (22), and the side plate (23) are respectively welded and fixed to the corresponding parts of the frame crossbeam (1).

3. The steering gear mounting structure according to claim 2, characterized in that, The frame crossbeam (1) includes a top wall (11), a bottom wall (12) and a rear side wall (13). The top wall (11) and the bottom wall (12) are respectively connected to the upper and lower edges of the rear side wall (13) and together with the rear side wall (13) form a groove structure. The reinforcing plate (2) is disposed in the groove structure. The top plate (21) is attached to and welded to the top wall (11). The bottom plate (22) is attached to and welded to the bottom wall (12). The side plate (23) is attached to and welded to the rear side wall (13).

4. The steering gear mounting structure according to claim 3, characterized in that, The two ends of the side plate portion (23) along the length direction of the frame beam (1) are welded and fixed to the rear side wall (13), the top plate portion (21) away from the side plate portion (23) is welded and fixed to the top wall (11), and the bottom plate portion (22) away from the side plate portion (23) is welded and fixed to the bottom wall (12).

5. The steering gear mounting structure according to claim 3, characterized in that, The mounting hole (10) is provided on the top wall (11) and the bottom wall (12), and passes through the top wall (11) and the bottom wall (12) vertically; the mounting through hole (20) is provided on the top plate part (21) and the bottom plate part (22), and passes through the top plate part (21) and the bottom plate part (22) vertically.

6. The steering gear mounting structure according to claim 1, characterized in that, Both the mounting hole (10) and the mounting through hole (20) are round holes, and the diameter of the mounting through hole (20) is greater than or equal to the diameter of the mounting hole (10).

7. The steering gear mounting structure according to any one of claims 1 to 6, characterized in that, The frame crossbeam (1) has an outward protrusion (14) at its end along the length direction. The outward protrusion (14) protrudes toward the rear side of the frame crossbeam (1). The reinforcing plate (2) has a protrusion (24) corresponding to the outward protrusion (14). The mounting sleeve (3) is fixed at the outward protrusion (14).

8. The steering gear mounting structure according to claim 7, characterized in that, The convex portion (14) forms an arched arc surface (141) at the top along the protrusion direction, and the protruding portion (24) forms a planar region (241) or an arc surface region corresponding to the arched arc surface (141) at the top along the protrusion direction. The curvature of the arc surface region is less than the curvature of the arched arc surface (141).

9. The steering gear mounting structure according to any one of claims 1 to 6, characterized in that, The mounting sleeve (3) includes a tube body and a tube head connected to the tube body. The tube body is installed in the mounting hole (10) and the mounting through hole (20). The tube head is located on the top outer side of the frame crossbeam (1) and is welded and fixed to the top of the frame crossbeam (1). The end of the tube body away from the tube head passes through the mounting hole (10) and is welded and fixed to the bottom of the frame crossbeam (1).

10. A vehicle, characterized in that, Includes the steering gear mounting structure as described in any one of claims 1 to 9.

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