Swing arm mounting structure, subframe and vehicle

Abstract

This utility model discloses a swing arm mounting structure, a subframe, and a vehicle, relating to the field of vehicle chassis technology. The swing arm mounting structure includes: a connecting bracket adapted to connect to the subframe longitudinal beam, the connecting bracket having a subframe mounting point for connection to the vehicle frame; and a swing arm bracket connected to the connecting bracket and integrally formed with it, the swing arm bracket being used to connect to the suspension swing arm. This utility model's swing arm mounting structure, by connecting the connecting bracket to the subframe longitudinal beam and the vehicle frame, and integrating the swing arm bracket and the connecting bracket into a single unit, effectively distributes the load from the swing arm to the subframe, improving the structure's strength and durability.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis technology, and in particular to a swing arm mounting structure, a subframe having the swing arm mounting structure, and a vehicle having the subframe. Background Technology

[0002] Large vehicles with a frame and subframe structure are typically divided into air spring models and coil spring models. In related technologies, the subframe longitudinal beams of air spring models need to be connected to the frame sequentially through multiple structural components, resulting in lower structural strength at the connection points and a higher risk of breakage between adjacent structural components, as well as higher development costs. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a swing arm mounting structure, which improves the strength and durability of the structure by connecting the connecting bracket to the subframe longitudinal beam and the frame, and by connecting the swing arm bracket and the connecting bracket into an integral structure.

[0004] The swing arm mounting structure according to an embodiment of the present utility model includes: a connecting bracket, the connecting bracket being adapted to be connected to the subframe longitudinal beam, the connecting bracket being provided with a subframe mounting point for connecting to the frame; and a swing arm bracket, the swing arm bracket being connected to the connecting bracket and forming an integral part with the connecting bracket, the swing arm bracket being used to connect to the suspension swing arm.

[0005] According to the swing arm mounting structure of this utility model embodiment, the connecting bracket can connect the subframe longitudinal beam and the frame, thereby improving the strength and durability of the structure. At the same time, the swing arm bracket and the connecting bracket can be connected into an integral structure, thereby effectively distributing the load from the swing arm to the subframe, further improving the strength and durability of the structure.

[0006] According to some embodiments of the present utility model, the swing arm mounting structure includes an upper bracket plate and a lower bracket plate. The swing arm bracket and the lower bracket plate are both connected below the upper bracket plate, and the upper bracket plate is adapted to be connected to the subframe longitudinal beam. Both the upper bracket plate and the lower bracket plate are provided with the subframe mounting point.

[0007] According to some embodiments of the present invention, in the swing arm mounting structure, a bracket space is defined between the lower plate of the bracket and the upper plate of the bracket, and the subframe mounting point is constructed as a mounting hole, which extends into the bracket space.

[0008] According to some embodiments of the present utility model, the bottom of the inner end of the upper plate of the bracket is formed with a connecting flange for connecting with the longitudinal beam of the subframe. At least a portion of the connecting flange is formed with an arc-shaped contact surface, which is used to contact and connect with the outer peripheral wall of the longitudinal beam of the subframe.

[0009] According to some embodiments of the present invention, the upper plate of the bracket has a plurality of edge lines extending along the length direction, and the edge lines are formed with rounded chamfers.

[0010] According to some embodiments of the present invention, the upper plate of the bracket is provided with at least one weight-reducing hole.

[0011] This utility model also proposes a subframe.

[0012] The subframe according to an embodiment of the present utility model includes a subframe longitudinal beam, a reinforcing support member, and a swing arm mounting structure as described in any of the above embodiments. The reinforcing support member is connected to the outer end of the connecting bracket and a subframe mounting point is provided at the connection point. The inner edge of the reinforcing support member is connected to the outer edge of the subframe longitudinal beam.

[0013] According to some embodiments of the present utility model, in the subframe, the outer edge of the reinforcing support member is formed with a clearance notch, which is used to avoid the air spring top support.

[0014] Alternatively, the reinforcing support may have a mounting portion for mounting a spring top support.

[0015] According to some embodiments of the present invention, the subframe includes an upper support plate and a lower support plate, which are spliced ​​together in the vertical direction.

[0016] This utility model also proposes a vehicle.

[0017] The vehicle according to the present invention includes a subframe of any of the above embodiments.

[0018] The vehicle, the subframe, and the aforementioned swing arm mounting structure have the same advantages over the prior art, and will not be repeated here.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the subframe structure of the air spring vehicle according to an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the subframe structure of a coil spring vehicle according to an embodiment of this utility model;

[0023] Figure 3 This is a side view of the subframe according to an embodiment of the present invention;

[0024] Figure 4 This is a top view of the subframe of the air spring vehicle according to an embodiment of the present invention;

[0025] Figure 5 This is a top view of the subframe of a coil spring vehicle according to an embodiment of the present invention;

[0026] Figure 6 yes Figure 5 Cross-sectional view at point AA;

[0027] Figure 7 yes Figure 5 Cross-sectional view at point BB;

[0028] Figure 8 This is a schematic diagram of the structure of the connecting bracket according to an embodiment of the present utility model;

[0029] Figure 9 This is a structural schematic diagram of the connecting bracket and reinforcing support of the coil spring vehicle according to an embodiment of this utility model;

[0030] Figure 10 This is a structural schematic diagram of the connecting bracket and reinforcing support of the air spring vehicle according to an embodiment of this utility model.

[0031] Figure label:

[0032] Swing arm mounting structure 100,

[0033] Connecting bracket 1, subframe mounting point 11, bracket upper plate 12, connecting flange 121, curved mating surface 122, edge line 123, rounded chamfer 124, weight reduction hole 125, bracket lower plate 13.

[0034] 2. Swing arm bracket; 3. Suspension swing arm.

[0035] Subframe 200,

[0036] Subframe longitudinal beam 2001, reinforcing support 2002, upper support plate 20021, lower support plate 20022, clearance notch 2003, mounting part 2004. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Existing vehicles are divided into air spring models and coil spring models. In air spring models, multiple structural components can be sequentially connected to the frame on the subframe longitudinal beam 2001, thereby enhancing the structural strength and durability. However, in coil spring models, the space occupied by the coil spring mounting bracket in the subframe 200 prevents the installation of multiple structural components, thus reducing the overall strength and durability of the subframe. The connecting bracket 1 and reinforcing support 2002 used in the subframe 200 of this invention can be applied to both air spring and coil spring models. For coil spring models, the reinforcing support 2002 and the coil spring mounting bracket are integrated into a single mounting part 2004, thereby increasing the parts commonality rate of the subframe 200 for both air spring and coil spring models and reducing development costs.

[0041] The following is for reference. Figures 1-10The description of the swing arm mounting structure 100 according to an embodiment of the present utility model is as follows: by setting the connecting bracket 1 to be able to connect the subframe longitudinal beam 2001 and the frame, and connecting the swing arm bracket 2 and the connecting bracket 1 into an integral structure, the load from the suspension swing arm 3 can be effectively distributed to the subframe 200, thereby improving the strength and durability of the structure.

[0042] like Figures 1-3 and Figures 8-10 As shown, the swing arm mounting structure 100 according to an embodiment of the present utility model includes: a connecting bracket 1 and a swing arm bracket 2.

[0043] The connecting bracket 1 is suitable for connection to the subframe longitudinal beam 2001. In other words, the connecting bracket 1 can be fixedly connected to the subframe longitudinal beam 2001. Simultaneously, the connecting bracket 1 is provided with a subframe mounting point 11 for connection to the vehicle frame, meaning the connecting bracket 1 can be connected and fixed to the vehicle frame at the subframe mounting point 11. Therefore, the subframe longitudinal beam 2001 and the vehicle frame can be interconnected through the connecting bracket 1, meaning the load on the subframe longitudinal beam 2001 can be directly transferred to the vehicle frame through the connecting bracket 1, thereby improving the load-bearing capacity of the subframe 200 and enhancing its structural strength and durability.

[0044] By setting the connecting bracket 1 to be directly connected to the subframe longitudinal beam 2001 and the frame, the number of structural components that transfer load between the subframe longitudinal beam 2001 and the frame can be reduced. That is, it is not necessary to connect and install through two or more intermediate structural components. This not only reduces processing costs, but also avoids the situation where the force transmission position between two or more intermediate structural components breaks during the load transmission process, thus reducing the setup cost, while ensuring structural strength and force transmission stability.

[0045] Furthermore, the swing arm bracket 2 is connected to the connecting bracket 1, and the swing arm bracket 2 and the connecting bracket 1 are integrated. That is, the swing arm bracket 2 and the connecting bracket 1 can be directly connected as an integrated structure or formed as an integrated structure through a fixed connection. Thus, both the swing arm bracket 2 and the connecting bracket 1 are mounted on the subframe longitudinal beam 2001, and both can transmit loads to the subframe longitudinal beam 2001. Specifically, the swing arm bracket 2 is used to connect to the suspension swing arm 3, meaning the suspension swing arm 3 can be mounted on the swing arm bracket 2. Therefore, the suspension swing arm 3 can transmit the load to the subframe longitudinal beam 2001 through the swing arm bracket 2. When the suspension swing arm 3 controls the movement of the wheels, the subframe longitudinal beam 2001 can provide support for the suspension swing arm 3 to achieve control of the vehicle's wheels.

[0046] Furthermore, the control arm bracket 2 and the connecting bracket 1 are connected and fixed into an integral structure, forming a mutually supportive and reinforced structure. This allows the load from the suspension control arm 3 to be effectively distributed to the subframe longitudinal beam 2001 and the subframe mounting point 11, and then transferred to the frame through the subframe mounting point 11, thereby improving the load-bearing capacity and structural strength of the suspension control arm 3 and the subframe 200.

[0047] According to the swing arm mounting structure 100 of this utility model embodiment, the connecting bracket 1 can be connected to the subframe longitudinal beam 2001 and the frame respectively, thereby improving the strength and durability of the structure. At the same time, the swing arm bracket 2 and the connecting bracket 1 can be connected into an integral structure, thereby effectively distributing the load from the suspension swing arm 3 to the subframe 200, further improving the strength and durability of the structure.

[0048] In some embodiments, the connecting bracket 1 includes an upper bracket plate 12 and a lower bracket plate 13. The swing arm bracket 2 and the lower bracket plate 13 are both connected below the upper bracket plate 12, and the upper bracket plate 12 is adapted to be connected to the subframe longitudinal beam 2001. That is, the upper bracket plate 12 and the lower bracket plate 13 can cooperate with each other to form the connecting bracket 1. In the actual installation process, the upper bracket plate 12 and the lower bracket plate 13 can be made to face each other and gradually move closer together. As the upper bracket plate 12 and the lower bracket plate 13 gradually move closer together, they can press against each other and be fixedly connected. For example, the upper bracket plate 12 and the lower bracket plate 13 can be welded to make the connecting bracket 1 have higher structural strength and be able to withstand greater loads.

[0049] Furthermore, one end of the upper bracket plate 12 can be connected to the subframe longitudinal beam 2001. This can be achieved by welding or bolting the upper bracket plate 12 to the subframe longitudinal beam 2001, ensuring a relatively fixed connection with high strength and ease of installation. Since the upper bracket plate 12 is installed above the subframe longitudinal beam 2001, the connecting bracket 1 can be connected to the subframe longitudinal beam 2001 via the upper bracket plate 12. This allows for flexible selection of the installation position of the connecting bracket 1 on the subframe longitudinal beam 2001, and the connecting bracket 1 can be installed above the subframe longitudinal beam 2001, making installation more convenient.

[0050] Meanwhile, both the upper plate 12 and the lower plate 13 of the bracket are provided with subframe mounting points 11. That is to say, both the upper plate 12 and the lower plate 13 of the bracket can be connected to the frame through the subframe mounting points 11. At the same time, the subframe mounting points 11 of the upper plate 12 and the lower plate 13 of the bracket can cooperate with each other to connect with the frame. In this way, the load between the subframe longitudinal beam 2001 and the frame can be transferred through the cooperation between the upper plate 12 and the lower plate 13 of the bracket. Specifically, the load in the subframe longitudinal beam 2001 can be transferred to the frame through the upper plate 12, through the lower plate 13, or through both the upper plate 12 and the lower plate 13. Thus, the load transfer path of the connecting bracket 1 can be flexibly selected, and the structural form of the cooperation between the upper plate 12 and the lower plate 13 of the bracket can transfer a larger load, which is beneficial to improving the load-bearing capacity and structural strength of the connecting bracket 1.

[0051] Specifically, such as Figures 1-3 and Figures 8-10 As shown, the installation positions of the connecting bracket 1 and the swing arm bracket 2 from top to bottom are: upper bracket plate 12 - lower bracket plate 13 - swing arm bracket 2. The upper bracket plate 12 and the lower bracket plate 13 cooperate with each other, and their subframe mounting points 11 cooperate with each other to connect with the frame, thereby realizing the connection between the subframe longitudinal beam 2001 and the frame. When the suspension swing arm 3 is installed on the swing arm bracket 2 and controls the wheel movement, the load can be transferred to the subframe longitudinal beam 2001 through the swing arm bracket 2. The subframe longitudinal beam 2001 can transfer the load to the frame through the connecting bracket 1. Thus, the suspension swing arm 3 realizes the transfer of load to the frame, thereby reducing the load borne by the subframe 200 and improving the strength and load-bearing capacity of the structure.

[0052] In some embodiments, a support space is defined between the lower support plate 13 and the upper support plate 12, and the subframe mounting point 11 is configured as a mounting hole that extends into the support space. That is, the cross-section formed by the cooperation of the lower support plate 13 and the upper support plate 12 has a large cross-sectional height, thereby significantly improving the bending and shear resistance of the connecting support 1. This prevents the connecting support 1 from deforming under large loads, thus avoiding structural failure. Simultaneously, the cavity-type connecting support 1, while possessing a large load-bearing capacity, can significantly reduce its material usage, thereby reducing structural weight and cost. Furthermore, the lower support plate 13 and the upper support plate 12 are relatively easy to manufacture individually, facilitating the processing and installation of the connecting support 1. Furthermore, the mounting holes that penetrate the bracket space allow the lower bracket plate 13 and the upper bracket plate 12 to be connected to the same position on the vehicle frame. That is, the subframe mounting point 11 of the lower bracket plate 13 and the subframe mounting point 11 of the upper bracket plate 12 can both be connected to the same position on the vehicle frame, thereby forming an integral connecting bracket 1 with the lower bracket plate 13 and the upper bracket plate 12 to connect with the vehicle frame and transfer the load.

[0053] Specifically, such as Figure 1 , Figure 2 and Figures 7-10 As shown, the upper plate 12 and lower plate 13 of the bracket cooperate to form a cavity structure. The subframe mounting points 11 of the two plates are directly opposite each other and spaced apart. Thus, at least part of the two subframe mounting points 11 and the space between them forms mounting holes. The swing arm mounting structure 100 can be connected to the frame through the mounting holes. For example, bolts can be used to pass through the mounting holes from bottom to top to connect with the frame. That is, the bolts can pass through the subframe mounting points 11 of the lower plate 13, the bracket space, and the subframe mounting points 11 of the upper plate 12 from bottom to top and then be threaded to the frame. Thus, the connecting bracket 1 and the frame are interconnected, and the subframe longitudinal beam 2001 can transfer the load to the frame through the connecting bracket 1, which helps to improve the strength and load-bearing capacity of the structure.

[0054] In some embodiments, the bottom of the inner end of the upper bracket plate 12 is formed with a connecting flange 121 for connecting with the subframe longitudinal beam 2001. At least a portion of the connecting flange 121 is formed with an arc-shaped contact surface 122 for contacting the outer peripheral wall of the subframe longitudinal beam 2001. That is, the upper bracket plate 12 can increase the contact area with the subframe longitudinal beam 2001 through the connecting flange 121. In this way, when the upper bracket plate 12 transfers the load to the subframe longitudinal beam 2001, the damage to the subframe longitudinal beam 2001 can be minimized, thereby improving the durability of the structure.

[0055] Specifically, such as Figures 1-3 and Figures 8-10 As shown, the bottom of the upper plate 12 of the bracket has an outwardly extending connecting flange 121, and the edge of the connecting flange 121 has an arc-shaped contact surface 122 to press against the sub-frame longitudinal beam 2001. In this way, the connecting flange 121 can extend along the outer wall contour on the axis of the sub-frame longitudinal beam 2001, and the arc-shaped contact surface 122 is in close contact with the outer wall of the sub-frame longitudinal beam 2001. As a result, the contact area between the upper plate 12 of the bracket and the sub-frame longitudinal beam 2001 can be increased, avoiding the upper plate 12 of the bracket from exerting large pressure on the sub-frame longitudinal beam 2001 locally when the load is transferred between the upper plate 12 of the bracket and the sub-frame longitudinal beam 2001, which would damage the outer wall of the sub-frame longitudinal beam 2001. As a result, the connection strength and structural durability of the sub-frame longitudinal beam 2001 and the upper plate 12 of the bracket can be improved, and the maximum value of the load that can be transferred can be increased.

[0056] Furthermore, the lower bracket plate 13 has an upward-facing flange along its edge. The upper bracket plate 12 and the lower bracket plate 13 are fastened together. That is, the flange of the lower bracket plate 13 extends towards the upper bracket plate 12 and presses against the lower side of the upper bracket plate 12. Thus, the upper bracket plate 12 and the lower bracket plate 13 cooperate to form a cavity structure with a support space in the middle. During the upward movement of the suspension arm 3, as the height of the suspension arm 3 increases, the distance between the top surface of the suspension arm 3 and the lower bracket plate 13 gradually decreases, eventually resulting in contact or collision. By flipping the edge of the lower bracket plate 13 upward, the relatively sharp edge of the lower bracket plate 13 can be prevented from contacting the suspension arm 3, thereby avoiding collision with the suspension arm 3 and preventing collision damage to the outer shell of the suspension arm 3. This increases the service life of the suspension arm 3, reduces the replacement frequency of the suspension arm 3, and lowers the replacement cost. Therefore, it is possible to avoid the edge of the lower plate 13 of the bracket colliding with the suspension arm 3 when the suspension arm 3 moves upward, thereby reducing the risk of collision damage. At the same time, the arrangement space can be utilized to the maximum extent to increase the cross-sectional height of the connecting bracket 1, which is conducive to enhancing the structural strength of the connecting bracket 1.

[0057] In some embodiments, the upper plate 12 of the support has a plurality of edge lines 123 extending along the length direction, and a rounded chamfer 124 is formed at the edge lines 123. The reasonable design of the edge lines 123 can avoid stress concentration when transmitting load, thereby reducing the local damage to the structure caused by stress concentration. At the same time, the reasonable design of the edge lines 123 can clarify the force transmission path and guide the stress concentration distribution so that the load is transmitted in a specific direction.

[0058] Specifically, such as Figures 1-3 and Figures 8-10 As shown, the top and side surfaces of the upper plate 12 of the bracket have smooth edge lines 123, and the edge lines 123 are set along the length direction of the upper plate 12 of the bracket. That is to say, the direction of the edge lines 123 is the direction connecting the subframe longitudinal beam 2001 and the subframe mounting point 11. In the actual load transfer process, after the subframe longitudinal beam 2001 transfers the load to the connecting bracket 1, the load can be transferred along the direction of the edge lines 123, that is, the load is transferred to the subframe mounting point 11 along the length direction of the connecting bracket 1. At the same time, the edge lines 123 form smooth chamfers 124, which can avoid stress concentration and disperse stress to improve the service life of the structural components when the connecting bracket 1 transfers the load; and the smooth chamfers 124 make the processing and manufacturing of the upper plate 12 of the bracket simple and easy to install.

[0059] In some embodiments, the upper plate 12 of the bracket is provided with at least one weight-reducing hole 125. That is, the upper plate 12 of the bracket may have one, two, or more weight-reducing holes 125, and the specific number can be flexibly selected. Furthermore, the shape of the weight-reducing hole 125 may be circular, strip-shaped, or other shapes. The weight-reducing hole 125 can reduce the amount of manufacturing material used in the upper plate 12 of the bracket, thereby reducing material costs. It can also reduce the structural weight of the entire vehicle by reducing its own weight. At the same time, the rational design of the number, shape, and position of the weight-reducing holes 125 can eliminate redundant materials and improve material utilization. In addition, the weight-reducing hole 125 can redistribute the load transmission path, thereby avoiding high stress concentration in local locations and reducing structural damage.

[0060] Specifically, such as Figure 1 , Figure 2 and Figure 8 As shown, the upper plate 12 of the bracket is provided with a circular weight-reducing hole 125 and a strip-shaped weight-reducing hole 125. The length direction of the strip-shaped weight-reducing hole 125 is the length direction of the connecting bracket 1, that is, the direction of load transfer on the connecting bracket 1 is the length direction of the strip-shaped weight-reducing hole 125. This can minimize the possibility of stress concentration during load transfer. In addition, the circular weight-reducing hole 125 has a small stress concentration coefficient, which can further avoid stress concentration during load transfer. Moreover, the circular weight-reducing hole 125 is easy to manufacture. Furthermore, the two weight-reducing holes 125 are arranged at intervals along the length direction of the upper plate 12 of the bracket. By setting two weight-reducing holes 125, stress can be further dispersed. During the load transfer process, the load can pass through the circular weight-reducing hole 125 and the strip-shaped weight-reducing hole 125 in sequence, so that the load can be smoothly transferred to the subframe mounting point 11.

[0061] This utility model also proposes a subframe 200.

[0062] The subframe 200 according to an embodiment of the present utility model includes a subframe longitudinal beam 2001, a reinforcing support member 2002, and a swing arm mounting structure 100 of any of the above embodiments. The reinforcing support member 2002 and the swing arm mounting structure 100 can cooperate with each other to transfer loads. The swing arm mounting structure 100 can be installed on the subframe longitudinal beam 2001, so that the subframe longitudinal beam 2001 and the swing arm mounting structure 100 can transfer loads with each other.

[0063] The reinforcing support 2002 is connected to the outer end of the connecting bracket 1, and a subframe mounting point 11 is provided at the connection. The inner edge of the reinforcing support 2002 is connected to the outer edge of the subframe longitudinal beam 2001. In other words, the reinforcing support 2002 is installed on the subframe longitudinal beam 2001, and the subframe mounting point 11 at the end of the reinforcing support 2002 can be connected to the frame. Thus, the reinforcing support 2002 can transfer the load to the frame to improve the load-bearing capacity of the structure. Therefore, both the subframe mounting point 11 of the connecting bracket 1 and the subframe mounting point 11 of the reinforcing support 2002 can be connected to the frame. In this way, the connecting bracket 1 and the reinforcing support 2002 can cooperate with each other to jointly transfer the load. When the load transmitted from the subframe longitudinal beam 2001 to the frame is large, part of the load from the subframe longitudinal beam 2001 can be transmitted to the frame by the reinforcing support 2002, and another part of the load can be transmitted to the frame by the swing arm mounting structure 100. As a result, the load that the subframe longitudinal beam 2001 can transmit to the frame increases significantly, which is beneficial to improving the overall stability of the structure.

[0064] Specifically, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 9 and Figure 10 As shown, one end of the connecting bracket 1 and the reinforcing support 2002 are both mounted on the subframe longitudinal beam 2001, and the other ends are close to each other. Each of the close ends has a subframe mounting point 11, through which a bolt passes. The bolt's thread passes through the subframe mounting point 11 from the bottom of the connecting bracket 1, and the bolt's limiting head can press against the bottom of the connecting bracket 1. The threaded part can be threaded to the frame. Thus, one end of the connecting bracket 1 and the reinforcing support 2002 are connected to the subframe longitudinal beam 2001, and the other end is connected to the frame. That is, the subframe 200 and the frame are connected to each other through the connecting bracket 1 and the reinforcing support 2002. Therefore, the subframe 200 can transfer the load to the frame, thereby improving the load-bearing capacity and structural strength of the subframe 200.

[0065] In some embodiments, the outer edge of the reinforcing support 2002 is formed with a clearance recess 2003, which is used to avoid the air spring top support; that is, an air spring can be provided at the clearance recess 2003 to support the frame, specifically, such as Figure 1 , Figure 4 and Figure 10 As shown, the clearance notch 2003 can accommodate the air spring top support, and the air spring can be installed on the air spring top support so that the air spring can be connected to the frame.

[0066] Alternatively, in some other embodiments, the reinforcing support 2002 is formed with a mounting portion 2004 for mounting a coil spring; that is, a coil spring can be mounted on the reinforcing support 2002 to support the vehicle frame. Specifically, as... Figure 2 , Figure 5 and Figure 9 As shown, the mounting part 2004 and the reinforcing support 2002 are integrated into one structure. In this way, the coil spring can be installed on the mounting part 2004 and then connected to the frame. At the same time, the reinforcing support 2002 can be connected to the frame to enhance the strength of the structure.

[0067] Therefore, when the vehicle is an air spring model, the reinforcing support 2002 can be constructed as a structural member with a clearance notch 2003; when the vehicle is a coil spring model, the reinforcing support 2002 can be constructed as a structural member with a mounting portion 2004. In both cases, the subframe 200 can be equipped with the reinforcing support 2002 while simultaneously connecting the air spring or coil spring to the frame. Thus, the subframe 200 of the air spring model and the subframe 200 of the coil spring model have similar structures, which helps reduce development costs. Furthermore, the lengths of the weld beads in both models are closer, making it easier to control the amount of welding deformation.

[0068] It should be noted that the mounting part 2004 includes an upper plate and a lower plate, which form a closed space. In other words, the mounting part 2004 can form a cavity structure with an internal space, which can reduce the amount of material used and the weight of its own processing and manufacturing, and has high structural strength. In the actual installation process, the upper plate and the lower plate of the mounting part 2004 can be aligned with each other and brought closer together. As the upper plate and the lower plate gradually approach each other, they will eventually press against each other, thus fixing the upper plate and the lower plate together. For example, they can be welded at the contact surface of the upper plate edge and the lower plate edge, which helps to improve the structural strength of the mounting part 2004 and give the mounting part 2004 a higher load-bearing capacity.

[0069] Meanwhile, the mounting part 2004 can be directly connected to the connecting bracket 1. That is, the upper plate of the mounting part 2004 can be directly connected to the connecting bracket 1, the lower plate of the mounting part 2004 can be directly connected to the connecting bracket 1, or both the upper and lower plates of the mounting part 2004 can be connected to the connecting bracket 1, thereby realizing the transfer of load between the subframe longitudinal beam 2001 and the mounting part 2004. Furthermore, connecting the subframe longitudinal beam 2001 and the mounting part 2004 through the connecting bracket 1 can further avoid stress concentration and help to disperse the load transferred from the connecting bracket 1, thereby improving the load-bearing capacity of the structure.

[0070] Specifically, such as Figure 2 and Figure 9As shown, the side of the mounting part 2004 can be pressed against the side of the connecting bracket 1, and the side profile of the mounting part 2004 is suitable for contacting the side of the connecting bracket 1. The two can be welded along the contact profile line of the mounting part 2004 and the connecting bracket 1. Thus, the mounting part 2004 and the connecting bracket 1 form a fixed connection with high connection strength, which helps to distribute the load transmitted by the connecting bracket 1 and improve the load-bearing capacity of the structure.

[0071] In some embodiments, the reinforcing support 2002 includes an upper support plate 20021 and a lower support plate 20022, which are spliced ​​together in the vertical direction. During actual installation, the upper support plate 20021 and the lower support plate 20022 can be vertically aligned. As they approach each other, their outer contours gradually close to form a closed reinforcing support 2002. The upper support plate 20021 and the lower support plate 20022 can be fixedly connected at the closure point by welding. Therefore, the reinforcing support 2002 has high structural strength, reduces material usage to lower structural weight, and features a simple structure, convenient installation, and low cost.

[0072] This utility model also proposes a vehicle.

[0073] The vehicle according to the present invention includes a subframe 200 of any of the above embodiments. By enabling the connecting bracket 1 to connect the subframe longitudinal beam 2001 and the frame, and by integrating the swing arm bracket 2 and the connecting bracket 1 into a single unit, the load from the swing arm can be effectively distributed to the subframe 200. Furthermore, the reinforcing support 2002 can transfer the load of the subframe longitudinal beam 2001 to the frame. Therefore, by providing the connecting bracket 1 and the reinforcing support 2002, the strength and durability of the structure can be improved.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A swing arm mounting structure characterized by comprising: include: A connecting bracket (1) is adapted to be connected to a subframe longitudinal beam (2001), and the connecting bracket (1) is provided with a subframe mounting point (11) for connecting to the frame; The swing arm bracket (2) is connected to the connecting bracket (1) and is integral with the connecting bracket (1). The swing arm bracket (2) is used to connect to the suspension swing arm (3).

2. The swing arm mounting structure according to claim 1, characterized by The connecting bracket (1) includes an upper bracket plate (12) and a lower bracket plate (13). The swing arm bracket (2) and the lower bracket plate (13) are both connected below the upper bracket plate (12). The upper bracket plate (12) is adapted to be connected to the subframe longitudinal beam (2001). The upper bracket plate (12) and the lower bracket plate (13) are both provided with the subframe mounting point (11).

3. The swing arm mounting structure according to claim 2, characterized by The bracket space is defined between the lower bracket plate (13) and the upper bracket plate (12), and the subframe mounting point (11) is constructed as a mounting hole that extends into the bracket space.

4. The swing arm mounting structure according to claim 2, characterized by The bottom of the inner end of the upper plate (12) of the bracket has a connecting flange (121) for connecting with the longitudinal beam (2001) of the subframe. At least a portion of the connecting flange (121) has an arc-shaped mating surface (122) for mating with the outer peripheral wall of the longitudinal beam (2001).

5. The swing arm mounting structure according to claim 2, characterized by The upper plate (12) of the bracket has a plurality of edge lines (123) extending along the length direction, and the edge lines (123) are formed with rounded chamfers (124).

6. The swing arm mounting structure according to claim 2, characterized by The upper plate (12) of the bracket is provided with at least one weight-reducing hole (125).

7. A subframe (200), characterized by The device includes a subframe longitudinal beam (2001), a reinforcing support (2002), and a swing arm mounting structure as described in any one of claims 1-6. The reinforcing support (2002) is connected to the outer end of the connecting bracket (1) and the subframe mounting point (11) is provided at the connection. The inner edge of the reinforcing support (2002) is connected to the outer edge of the subframe longitudinal beam (2001).

8. The subframe (200) according to claim 7, characterized in that The outer edge of the reinforcing support (2002) is provided with a clearance notch (2003), which is used to avoid the top support of the air spring; Alternatively, the reinforcing support (2002) may have a mounting portion (2004) for mounting a spring top support.

9. The subframe (200) of claim 7, characterized in that, The reinforcing support (2002) includes an upper support plate (20021) and a lower support plate (20022), which are spliced ​​together in the vertical direction.

10. A vehicle characterized by comprising: Includes the subframe (200) according to any one of claims 7-9.

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