Auxiliary frame and vehicle

Abstract

The utility model provides an auxiliary frame and a vehicle. The auxiliary frame comprises auxiliary frame longitudinal beams arranged on the left side and the right side respectively, a first auxiliary frame cross beam, a second auxiliary frame cross beam and a steering gear installation support, wherein the first auxiliary frame cross beam and the second auxiliary frame cross beam are connected between the auxiliary frame longitudinal beams on the two sides. The steering gear installation support is located in an area defined by the first auxiliary frame cross beam, the second auxiliary frame cross beam and the auxiliary frame longitudinal beams on the two sides and is close to the first auxiliary frame cross beam and the auxiliary frame longitudinal beam on one side. A first steering gear installation point is arranged on the steering gear installation support, the rear end of the steering gear installation support is connected to the auxiliary frame longitudinal beam on the same side, and the front end of the steering gear installation support is connected to the first auxiliary frame cross beam. According to the auxiliary frame, the rigidity of the installation point of the first steering gear can be improved, meanwhile, the force transmission path of the installation point of the steering gear can be increased, collision force can be dispersed easily, and therefore the collision safety of the whole vehicle can be improved easily.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle bodies, in particular to a subframe. Meanwhile, the utility model also relates to a vehicle provided with the subframe. Background Art

[0002] When in use, the existing front subframe is usually equipped with components such as the suspension system, engine, transmission and steering gear, among which the rear end of the steering gear is generally fixed to the front subframe through a steering gear mounting bracket and a sleeve. However, the existing steering gear mounting bracket is connected to the side of the subframe longitudinal beam, and the sleeve used to connect with the steering gear is connected to the top of the steering gear mounting bracket, which makes the steering gear mounting point have low rigidity and a single force transmission path, which is not conducive to the dispersion of collision force and is difficult to meet the requirements of vehicle collision safety. Utility Model Content

[0003] In view of this, the utility model aims to provide a subframe, which can improve the collision safety of the entire vehicle.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A sub-frame, the sub-frame comprising sub-frame longitudinal beams arranged on left and right sides, a first sub-frame cross beam and a second sub-frame cross beam connected between the sub-frame longitudinal beams on both sides, and a steering gear mounting bracket;

[0006] The steering gear mounting bracket is located in an area surrounded by the first sub-frame cross beam, the second sub-frame cross beam and the sub-frame longitudinal beams on both sides, and is arranged close to the first sub-frame cross beam and the sub-frame longitudinal beam on one side;

[0007] The steering gear mounting bracket is provided with a first steering gear mounting point, and the rear end of the steering gear mounting bracket is connected to the auxiliary frame longitudinal beam on the same side, and the front end of the steering gear mounting bracket is connected to the first auxiliary frame cross beam.

[0008] Furthermore, a beam connecting plate is connected between the bottoms of the first sub-frame beam and the second sub-frame beam, and the bottom end of the steering gear mounting bracket is connected to the beam connecting plate.

[0009] Furthermore, the steering gear mounting bracket includes a bracket upper plate, and the first steering gear mounting point is arranged on the bracket upper plate; the rear end of the bracket upper plate is connected to the auxiliary frame longitudinal beam on the same side, the front end of the bracket upper plate is connected to the first auxiliary frame cross beam, the bottom end of the bracket upper plate is connected to the cross beam connecting plate, and a cavity is formed between the bracket upper plate, the first auxiliary frame cross beam, the cross beam connecting plate, and the auxiliary frame longitudinal beam on the same side.

[0010] Furthermore, an avoidance notch is provided on the upper plate of the bracket near the position where the longitudinal beam of the sub-frame on the same side is connected to the first sub-frame cross beam, and a reinforcing rib is provided on the upper plate of the bracket around the avoidance notch.

[0011] Furthermore, the steering gear mounting bracket also includes a bracket lower plate, the bracket lower plate is located in the cavity, and the bracket lower plate is connected to the bracket upper plate.

[0012] Furthermore, the first steering gear mounting point includes a steering gear mounting sleeve arranged on the upper plate of the bracket; the top of the steering gear mounting sleeve is connected to the upper plate of the bracket, and the bottom of the steering gear mounting sleeve is connected to the bottom of the lower plate of the bracket.

[0013] Furthermore, a radially outwardly extending boss is provided at the top of the steering gear mounting sleeve; the boss is overlapped on the top of the bracket upper plate, and the bottom of the steering gear mounting sleeve passes through the bracket lower plate.

[0014] Furthermore, the upper plate of the bracket and the lower plate of the bracket are both integrally stamped and formed; the upper plate of the bracket has an upper plate top wall and an upper plate side wall, the lower plate of the bracket has a lower plate bottom wall and a lower plate side wall, and the lower plate bottom wall is connected to the upper plate side wall, the lower plate side wall is connected to the upper plate top wall, and a cavity is formed between the upper plate of the bracket and the lower plate of the bracket.

[0015] Furthermore, second steering gear mounting points are respectively provided on the sub-frame longitudinal beams on both sides, and the connecting lines between the second steering gear mounting points and the first steering gear mounting points on both sides are in the form of a triangle; and / or, a plurality of swing arm rear mounting points are provided on the sub-frame longitudinal beams on both sides, and when viewed from the left and right direction of the whole vehicle, the steering gear mounting bracket is arranged correspondingly to one of the swing arm rear mounting points on the sub-frame longitudinal beam on the same side.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The sub-frame described in the utility model can increase the rigidity of the first steering gear installation point by making the steering gear installation bracket connected to the sub-frame longitudinal beam and the first sub-frame cross beam respectively, and can also increase the force transmission path of the first steering gear installation point by utilizing the connection between the sub-frame longitudinal beam and the first sub-frame cross beam, which is beneficial to the dispersion of collision force and helps to improve collision safety.

[0018] In addition, by further connecting with the crossbeam connecting plate, the second subframe crossbeam can be used to increase the stiffness of the steering gear mounting point, and the collision force transmission path at the mounting point after the steering gear is installed can also be increased. The steering gear mounting bracket includes a bracket upper plate, and a cavity is formed between the bracket upper plate and the subframe longitudinal beam, the first subframe crossbeam and the crossbeam connecting plate, which can ensure the structural strength of the steering gear mounting bracket and help ensure the stiffness of the first steering gear mounting point. The avoidance gap is provided to facilitate the arrangement of the bracket upper plate in the subframe, and the reinforcement ribs are provided to reduce the influence of the avoidance gap on the structural strength of the bracket upper plate while ensuring the overall stiffness of the steering gear mounting bracket.

[0019] Secondly, the lower plate of the bracket is set to further increase the overall structural strength of the steering gear mounting bracket. The top of the steering gear mounting sleeve is connected to the upper plate of the bracket, and the bottom is connected to the lower plate of the bracket, which can not only reduce the opening stress of the sleeve installation point on the upper plate of the bracket, but also shorten the sleeve length, which is beneficial to the weight reduction and verticality control of the sleeve. The steering gear mounting sleeve adopts a T-shaped sleeve, so that the top boss overlaps the top of the upper plate of the bracket, and the bottom of the sleeve crosses the lower plate of the bracket, which can ensure the reliability of the steering gear mounting sleeve on the steering gear mounting bracket.

[0020] In addition, the upper and lower plates of the bracket are integrally stamped and formed, which can facilitate the preparation of the two, and form a cavity between the upper and lower plates of the bracket, which can better improve the structural strength of the steering gear mounting bracket and improve the rigidity of the first steering gear mounting point. The connection line between the front and rear mounting points of the steering gear is triangular, which can ensure the stability of the steering gear installation. At the same time, the steering gear mounting bracket is arranged corresponding to one of the rear mounting points of the swing arm, and the rigidity of the rear mounting point of the swing arm can be increased with the help of the steering gear mounting bracket, which can improve the stability of the swing arm installation.

[0021] Another object of the present invention is to provide a vehicle, wherein the vehicle is provided with the subframe as described above.

[0022] The vehicle described in the utility model is provided with the above-mentioned subframe, which can increase the rigidity of the first steering gear installation point and the force transmission path at the first steering gear installation point, thereby facilitating the dispersion of collision force, thereby facilitating improving the collision performance of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the overall structure of the subframe according to an embodiment of the utility model;

[0025] Figure 2for Figure 1 A schematic diagram of the structure from another perspective of the structure shown in ;

[0026] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the steering gear mounting bracket according to an embodiment of the utility model;

[0028] Figure 5 for Figure 4 A schematic diagram of the structure from another perspective of the structure shown in ;

[0029] Figure 6 This is a schematic diagram of the structure of the upper plate of the bracket according to an embodiment of the utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the lower plate of the bracket according to an embodiment of the utility model;

[0031] Figure 8 It is a structural schematic diagram of the steering gear mounting sleeve according to an embodiment of the utility model;

[0032] Description of reference numerals:

[0033] 1. Subframe longitudinal beam; 2. First subframe crossbeam; 3. Second subframe crossbeam; 4. Subframe front crossbeam;

[0034] 5. Steering gear mounting bracket; 50. Cavity; 51. Bracket upper plate; 510. Avoidance gap; 511. Upper plate top wall; 5111. First connecting hole; 512. Upper plate side wall; 513. Reinforcement rib; 514. First top wall flange; 515. First side wall flange; 516. Second top wall flange; 517. Second side wall flange; 52. Bracket lower plate; 521. Lower plate bottom wall; 5211. Second connecting hole; 522. Lower plate side wall; 53. Cavity; 54. Steering gear mounting sleeve; 541. Boss;

[0035] 6. Crossbeam connecting plate; 7. Steering gear front mounting sleeve; 8. Swing arm rear mounting sleeve; 9. Body connecting bracket; 100. Body longitudinal beam. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0038] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] Taking the vehicle in which the subframe described in the utility model is located as an example, the directional words such as "up, down, left, right, front, and back" used in the embodiment are defined based on the up and down direction (also called the height direction, or the Z direction of the whole vehicle), the left and right direction (also called the width direction, or the Y direction of the whole vehicle), and the front and rear direction (also called the length direction, or the X direction of the whole vehicle) of the vehicle. "Inside and outside" are defined based on the contour of the corresponding parts. For example, "inside" and "outside" are defined based on the contour of the vehicle, and the side of the vehicle contour close to the middle of the vehicle is "inside", and the opposite is "outside".

[0040] In addition, in the description of the present invention, unless otherwise clearly defined, the mating parts may be connected by conventional connection structures in the art. Moreover, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0041] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0042] Embodiment 1

[0043] This embodiment relates to a subframe, which can not only increase the rigidity of the first steering gear installation point, but also increase the force transmission path at the first steering gear installation point, thereby improving the collision force dispersion effect and further improving the collision safety.

[0044] In terms of overall structure, Figures 1 to 8 As shown, the sub-frame of this embodiment includes sub-frame longitudinal beams 1 arranged on the left and right sides, a first sub-frame cross beam 2 and a second sub-frame cross beam 3 connected between the sub-frame longitudinal beams 1 on both sides, and a steering gear mounting bracket 5.

[0045] Secondly, the steering gear mounting bracket 5 is located in the area surrounded by the first sub-frame cross beam 2, the second sub-frame cross beam 3 and the sub-frame longitudinal beams 1 on both sides, and is arranged close to the first sub-frame cross beam 2 and the sub-frame longitudinal beam 1 on one side. In addition, the steering gear mounting bracket 5 is provided with a first steering gear mounting point, and the rear end of the steering gear mounting bracket 5 is connected to the sub-frame longitudinal beam 1 on the same side, and the front end of the steering gear mounting bracket 5 is connected to the first sub-frame cross beam 2.

[0046] At this time, as set above, the steering gear mounting bracket 5 can be connected to the subframe longitudinal beam 1 and the first subframe cross beam 2 respectively. Based on this, not only the stiffness of the first steering gear mounting point can be increased to improve the installation stability of the steering gear, but also the force transmission path of the first steering gear mounting point can be increased, which is beneficial to the dispersion of collision force, thereby helping to improve collision safety.

[0047] Based on the above overall introduction, in detail, in the specific implementation, the subframe of this embodiment is generally the front subframe in the vehicle, and correspondingly, the first subframe cross beam 2 is the middle cross beam of the subframe, the second subframe cross beam 3 is the rear cross beam of the subframe, and the rear end of the steering gear mounting bracket 5 is preferably connected to the subframe longitudinal beam 1 on the left side, that is, the steering gear mounting bracket 5 is located on the inner side of the subframe longitudinal beam 1 on the left side, and at the same time, the front end of the steering gear mounting bracket 5 is connected to the first subframe cross beam 2, which will not be repeated below.

[0048] Of course, the related structural parts not mentioned in the subframe of this embodiment can refer to the various structures in the vehicle body structure well known to those skilled in the art, such as Figure 1 As shown in the figure, the left and right sub-frame longitudinal beams 1 are provided with body connection brackets 9 for connecting with the body longitudinal beams 100, and the left and right sub-frame front cross beams 4 located in front of the first sub-frame cross beam 2 are also provided between the left and right sub-frame longitudinal beams 1.

[0049] In this embodiment, as a preferred implementation form, Figures 1 to 3 As shown in FIG. , a beam connecting plate 6 is connected between the bottoms of the first sub-frame beam 2 and the second sub-frame beam 3 , and the bottom end of the steering gear mounting bracket 5 is connected to the beam connecting plate 6 .

[0050] Here, by further connecting the steering gear mounting bracket 5 to the crossbeam connecting plate 6, the second subframe crossbeam 3 can be used to increase the stiffness of the steering gear mounting point, and the collision force transmission path at the mounting point position after the steering gear is installed can also be increased, thereby facilitating the improvement of the collision safety of the entire vehicle.

[0051] When this embodiment is implemented, the cross beam connecting plate 6 can be a connecting plate separately arranged between the first sub-frame cross beam 2 and the second sub-frame cross beam 3, or when both the first sub-frame cross beam 2 and the second sub-frame cross beam adopt an upper and lower plate buckled structure, the cross beam connecting plate 6 and the cross beam lower plate of the two are an integrated structure.

[0052] In this embodiment, as a preferred implementation form, combined with Figures 3 to 5 As shown, the steering gear mounting bracket 5 includes a bracket upper plate 51, and the first steering gear mounting point is arranged on the bracket upper plate 51. The rear end of the bracket upper plate 51 is connected to the auxiliary frame longitudinal beam 1 on the same side, the front end of the bracket upper plate 51 is connected to the first auxiliary frame cross beam 2, the bottom end of the bracket upper plate 51 is connected to the cross beam connecting plate 6, and a cavity 50 is formed between the bracket upper plate 51, the first auxiliary frame cross beam 2, the cross beam connecting plate 6, and the auxiliary frame longitudinal beam 1 on the same side.

[0053] It can be understood that the steering gear mounting bracket 5 includes a bracket upper plate 51, and a cavity 50 is formed between the bracket upper plate 51 and the subframe longitudinal beam 1, the first subframe cross beam 2 and the cross beam connecting plate 6, which can ensure the structural strength of the steering gear mounting bracket 5, and further help to ensure the rigidity of the first steering gear mounting point.

[0054] Furthermore, as a preferred implementation form, in this embodiment, an avoidance notch 510 is provided on the bracket upper plate 51 near the position where the same-side sub-frame longitudinal beam 1 is connected to the first sub-frame cross beam 2 , and a reinforcing rib 513 is provided on the bracket upper plate 51 surrounding the avoidance notch 510 .

[0055] By configuring in this way, the avoidance gap 510 can be provided to facilitate the arrangement of the bracket upper plate 51 in the sub-frame, and the reinforcing ribs 513 can be provided to reduce the influence of the avoidance gap 510 on the structural strength of the bracket upper plate 51 while ensuring the overall rigidity of the steering gear mounting bracket 5.

[0056] In addition, in this embodiment, as a preferred implementation form, continue to refer to Figure 4 As shown, the steering gear mounting bracket 5 also includes a bracket lower plate 52, which is located in the cavity 50 and connected to the bottom of the bracket upper plate 51. At this time, based on the arrangement of the bracket lower plate 52, the overall structural strength of the steering gear mounting bracket 5 can be further increased, thereby enhancing the rigidity of the steering gear mounting point.

[0057] To expand, in this embodiment, as a preferred implementation form, the first steering gear mounting point includes a steering gear mounting sleeve 54 provided on the bracket upper plate 51. The top of the steering gear mounting sleeve 54 is connected to the bracket upper plate 51, and the bottom of the steering gear mounting sleeve 54 is connected to the bracket lower plate 52.

[0058] As configured above, the top of the steering gear mounting sleeve 54 is connected to the bracket upper plate 51, and the bottom is connected to the bracket lower plate 52, which can not only reduce the opening stress of the sleeve mounting point of the bracket upper plate 51, but also shorten the sleeve length, which is beneficial to the weight reduction and verticality control of the sleeve.

[0059] Furthermore, in this embodiment, as a preferred implementation form, combined with Figure 4 , Figure 5 and Figure 8 As shown, the top of the steering gear mounting sleeve 54 is provided with a radially outwardly extending boss 541, so that the steering gear mounting sleeve 54 adopts a T-shaped sleeve structure. Specifically, the boss 541 overlaps the top of the bracket upper plate 51, and the bottom of the steering gear mounting sleeve 54 passes through the bracket lower plate 52.

[0060] Here, based on the steering gear mounting sleeve 54 adopting a T-shaped sleeve, the top boss 541 is overlapped on the top of the bracket upper plate 51, and the bottom of the sleeve also passes through the structural design of the bracket lower plate 52, which is conducive to ensuring the reliability of the steering gear mounting sleeve 54 on the steering gear mounting bracket 5.

[0061] In addition, in this embodiment, as a preferred implementation form, the bracket upper plate 51 and the bracket lower plate 52 are integrally stamped. Figures 4 to 7 As shown in the figure, the bracket upper plate 51 has an upper plate top wall 511 and an upper plate side wall 512, the bracket lower plate 52 has a lower plate bottom wall 521 and a lower plate side wall 522, and the lower plate bottom wall 521 is connected to the upper plate side wall 512, the lower plate side wall 522 is connected to the upper plate top wall 511, and a cavity 53 is formed between the bracket upper plate 51 and the bracket lower plate 52.

[0062] The main advantage of such a configuration is that by integrally stamping the upper plate 51 and the lower plate 52 of the bracket, the preparation of both can be facilitated. At the same time, a cavity 53 is formed between the upper and lower plates of the bracket, which can better improve the structural strength of the steering gear mounting bracket 5, thereby improving the rigidity of the first steering gear mounting point.

[0063] It is worth mentioning that in this embodiment, in the specific implementation, Figure 6 and Figure 7As shown in the figure, a first connecting hole 5111 is provided on the top wall 511 of the upper plate for the steering gear mounting sleeve 54 to pass through and overlap, and a second connecting hole 5211 corresponding to the first connecting hole 5111 is provided on the bottom wall 521 of the lower plate to cooperate with the bottom of the steering gear mounting sleeve 54.

[0064] Secondly, the front end of the upper plate top wall 511 of this embodiment is also provided with a first top wall flange 514 for connecting with the top of the first sub-frame cross beam 2, and the rear end of the upper plate top wall 511 is provided with a second top wall flange 516 for connecting with the top of the same-side sub-frame longitudinal beam 1. At the same time, the front end of the upper plate side wall 512 of this embodiment is provided with a first side wall flange 515 for connecting with the side of the first sub-frame cross beam 2, and the rear end of the upper plate side wall 512 is provided with a second side wall flange 517 for connecting with the side of the same-side sub-frame longitudinal beam 1. In this way, the connection area between the bracket upper plate 51 and the same-side sub-frame longitudinal beam 1 and the first sub-frame cross beam 2 can be increased, so as to improve the connection strength of the bracket upper plate 51.

[0065] In addition, in this embodiment, as a preferred implementation form, continue to refer to Figure 2 and Figure 3 As shown, second steering gear mounting points are respectively provided on the auxiliary frame longitudinal beams 1 on both sides, and the connecting lines between the second steering gear mounting points and the first steering gear mounting points on both sides are in the form of a triangle.

[0066] Here, when the sub-frame of the present embodiment is the front sub-frame, the first steering gear mounting point is the rear steering gear mounting point, and the second steering gear mounting points on both sides are the front steering gear mounting points. At the same time, the connection line between the front and rear steering gear mounting points is formed into a triangle, and the high stability of the triangle structure can be utilized to ensure the stability of the steering gear installation. In the specific structure, the second steering gear mounting point on each side includes a steering gear front mounting sleeve 7 provided on the longitudinal beam 1 of the sub-frame on the same side, and each steering gear front mounting sleeve 7 is used to be screwed and connected to the corresponding mounting position on the steering gear.

[0067] At the same time, as a preferred implementation form, in this embodiment, multiple swing arm rear mounting points are provided on the auxiliary frame longitudinal beams 1 on both sides. When viewed from the left and right direction of the vehicle, the steering gear mounting bracket 5 is arranged corresponding to one of the swing arm rear mounting points on the auxiliary frame longitudinal beam 1 on the same side.

[0068] It is understandable that by arranging the steering gear mounting bracket 5 corresponding to one of the rear mounting points of the swing arm, the rigidity of the rear mounting point of the swing arm can be increased with the help of the steering gear mounting bracket 5, thereby facilitating the improvement of the stability of the swing arm installation.

[0069] In specific implementation, the above-mentioned swing arm rear mounting point may include a swing arm rear mounting sleeve 8 provided on the auxiliary frame longitudinal beam 1, that is, the rear mounting point of the swing arm is connected to the auxiliary frame through each swing arm rear mounting sleeve 8. Of course, the number and arrangement of the swing arm rear mounting points (that is, the swing arm rear mounting sleeve 8) on each side auxiliary frame longitudinal beam 1 can be set and adjusted accordingly according to the actual installation requirements of the swing arm. For example, each side auxiliary frame longitudinal beam 1 is provided with three swing arm rear mounting points arranged at intervals along its own length direction, and the swing arm rear mounting point located at the front is arranged correspondingly to the steering gear mounting bracket 5 on the same side.

[0070] The sub-frame of this embodiment, by connecting the steering gear mounting bracket 5 to the sub-frame longitudinal beam 1 and the first sub-frame cross beam 2 respectively, can increase the rigidity of the first steering gear mounting point with the help of the sub-frame longitudinal beam 1 and the first sub-frame cross beam 2, and can also increase the force transmission path of the first steering gear mounting point by utilizing the connection between the sub-frame longitudinal beam 1 and the first sub-frame cross beam 2, which is beneficial to the dispersion of collision force and helps to improve collision safety.

[0071] Embodiment 2

[0072] This embodiment relates to a vehicle, in which the subframe in the first embodiment is provided.

[0073] The vehicle of this embodiment, by setting the subframe in the first embodiment, can improve the stiffness of the first steering gear mounting point, so as to improve the installation stability of the steering gear. At the same time, it can also increase the force transmission path of the first steering gear mounting point, which is beneficial to the dispersion of collision force, thereby helping to improve the safety quality of the whole vehicle.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A subframe, characterized in that: The sub-frame comprises sub-frame longitudinal beams (1) arranged on the left and right sides, a first sub-frame cross beam (2) and a second sub-frame cross beam (3) connected between the sub-frame longitudinal beams (1) on the two sides, and a steering gear mounting bracket (5); The steering gear mounting bracket (5) is located in an area enclosed by the first sub-frame cross beam (2), the second sub-frame cross beam (3) and the sub-frame longitudinal beams (1) on both sides, and is arranged close to the first sub-frame cross beam (2) and the sub-frame longitudinal beam (1) on one side; The steering gear mounting bracket (5) is provided with a first steering gear mounting point, and the rear end of the steering gear mounting bracket (5) is connected to the auxiliary frame longitudinal beam (1) on the same side, and the front end of the steering gear mounting bracket (5) is connected to the first auxiliary frame cross beam (2).

2. The subframe according to claim 1, characterized in that: A beam connecting plate (6) is connected between the bottoms of the first sub-frame beam (2) and the second sub-frame beam (3), and the bottom end of the steering gear mounting bracket (5) is connected to the beam connecting plate (6).

3. The subframe according to claim 2, characterized in that: The steering gear mounting bracket (5) comprises a bracket upper plate (51), and the first steering gear mounting point is arranged on the bracket upper plate (51); The rear end of the bracket upper plate (51) is connected to the auxiliary frame longitudinal beam (1) on the same side, the front end of the bracket upper plate (51) is connected to the first auxiliary frame cross beam (2), the bottom end of the bracket upper plate (51) is connected to the cross beam connecting plate (6), and a cavity (50) is formed between the bracket upper plate (51), the first auxiliary frame cross beam (2), the cross beam connecting plate (6), and the auxiliary frame longitudinal beam (1) on the same side.

4. The subframe according to claim 3, characterized in that: The bracket upper plate (51) is provided with an avoidance notch (510) near the position where the auxiliary frame longitudinal beam (1) and the first auxiliary frame cross beam (2) on the same side are connected, and the bracket upper plate (51) is provided with a reinforcing rib (513) arranged around the avoidance notch (510).

5. The subframe according to claim 3, characterized in that: The steering gear mounting bracket (5) further comprises a bracket lower plate (52), wherein the bracket lower plate (52) is located in the cavity (50), and the bracket lower plate (52) is connected to the bottom of the bracket upper plate (51).

6. The subframe according to claim 5, characterized in that: The first steering gear installation point comprises a steering gear installation sleeve (54) arranged on the upper plate (51) of the bracket; The top of the steering gear mounting sleeve (54) is connected to the bracket upper plate (51), and the bottom of the steering gear mounting sleeve (54) is connected to the bracket lower plate (52).

7. The subframe according to claim 6, characterized in that: The top of the steering gear mounting sleeve (54) is provided with a radially outwardly extending boss (541); The boss (541) overlaps the top of the bracket upper plate (51), and the bottom of the steering gear mounting sleeve (54) passes through the bracket lower plate (52).

8. The subframe according to claim 5, characterized in that: The bracket upper plate (51) and the bracket lower plate (52) are integrally stamped and formed; The bracket upper plate (51) has an upper plate top wall (511) and an upper plate side wall (512), and the bracket lower plate (52) has a lower plate bottom wall (521) and a lower plate side wall (522), and the lower plate bottom wall (521) is connected to the upper plate side wall (512), and the lower plate side wall (522) is connected to the upper plate top wall (511), and a cavity (53) is formed between the bracket upper plate (51) and the bracket lower plate (52).

9. The subframe according to any one of claims 1 to 8, characterized in that: A second steering gear mounting point is respectively provided on the auxiliary frame longitudinal beams (1) on both sides, and the connecting lines between the second steering gear mounting points and the first steering gear mounting points on both sides are in the form of a triangle; and / or, A plurality of swing arm rear mounting points are provided on the auxiliary frame longitudinal beams (1) on both sides. When viewed from the left and right direction of the vehicle, the steering gear mounting bracket (5) is arranged corresponding to one of the swing arm rear mounting points on the auxiliary frame longitudinal beam (1) on the same side.

10. A vehicle, characterized in that: The vehicle is provided with the subframe according to any one of claims 1 to 9.

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