Auxiliary frame cross beam, auxiliary frame and vehicle

Abstract

The utility model provides an auxiliary frame cross beam, an auxiliary frame and a vehicle. The auxiliary frame cross beam comprises a cross beam body. One side of the cross beam body is provided with an inner concave part extending in the length direction of the cross beam body, and a plurality of connecting arms are arranged in the inner concave part; the multiple connecting arms are sequentially arranged in the extending direction of the inner concave part, each connecting arm is connected between the two opposite inner walls of the inner concave part, and any two adjacent connecting arms are connected in a crossed mode at the inner wall of one side of the inner concave part. According to the auxiliary frame cross beam, the cross beam body can form a structure similar to a truss, light weight is achieved through the characteristics of the structure similar to the truss, the structural performance of the cross beam body is improved, the safety performance and the light weight of an auxiliary frame are improved, and therefore the quality and market competitiveness of a whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary frames, in particular to an auxiliary frame cross beam. Meanwhile, the utility model also relates to an auxiliary frame provided with the auxiliary frame cross beam, and a vehicle provided with the auxiliary frame. Background Art

[0002] The subframe is a very important safety and load-bearing component in the passenger car chassis. It supports the load mass of the front and rear axles. At the same time, it can isolate the vibration of the powertrain, and withstand and transmit various forces and moments generated during the driving of the car.

[0003] At present, lightweighting has become an indispensable technical requirement for vehicle research and development. However, lightweight design of subframes will also lead to a decrease in component material performance and the overall safety performance of subframes. Therefore, existing subframes cannot simultaneously meet the requirements of good structural performance and lightweight, making it difficult to meet product design requirements and not conducive to improving the quality of the entire vehicle. Utility Model Content

[0004] In view of this, the utility model aims to provide a subframe cross beam, which is beneficial to improving structural strength and lightness.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A subframe crossbeam includes a crossbeam body;

[0007] One side of the cross beam body is provided with an inner concave portion extending along the length direction of the cross beam body, and a plurality of connecting arms are provided in the inner concave portion;

[0008] The plurality of connecting arms are arranged in sequence along the extension direction of the inner recess, and each connecting arm is connected between two opposite inner walls of the inner recess, and any two adjacent connecting arms are cross-connected at one inner wall of the inner recess.

[0009] Furthermore, the cross beam body has a curved section that arches upward, and the curved section is arranged close to one end of the cross beam body.

[0010] Furthermore, mounting holes are respectively provided at both ends of the crossbeam body, and the mounting holes (12) are used to install the cross arms in the suspension system.

[0011] Furthermore, the inner recess is located at the bottom of the beam body; and / or the beam body is integrally cast.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The subframe cross beam described in the utility model is connected between two opposite inner walls of the inner recess through each connecting arm, and any two adjacent connecting arms are cross-connected at the inner wall on one side of the inner recess, so that the cross beam body itself can form a truss-like structure, which can not only achieve lightweight, but also utilize the characteristics of the truss structure such as high rigidity and reliability to improve the structural performance of the cross beam body, thereby facilitating the improvement of the quality of the subframe.

[0014] In addition, by setting the curved section, it is convenient to avoid surrounding parts and facilitate the layout of the whole vehicle. The setting of the cross arm mounting hole can facilitate the installation and layout of each cross arm in the suspension system. The inner concave part is located at the bottom of the cross beam body, which can help improve the truss structure's resistance to the Z-direction bending of the cross beam body and improve the Y-direction rigidity of the cross beam body. The cross beam body is integrally cast, which is conducive to ensuring the molding quality and achieving lightweight.

[0015] In addition, another object of the present invention is to provide a subframe, comprising two subframe longitudinal beams arranged opposite to each other on the left and right, and the subframe cross beam as described above connected between the two subframe longitudinal beams.

[0016] Furthermore, it also includes a first sub-frame cross beam and a second sub-frame cross beam connected between the two sub-frame longitudinal beams; in the front-rear direction of the whole vehicle, the sub-frame cross beam is located between the first sub-frame cross beam and the second sub-frame cross beam.

[0017] Further, in the up-down direction of the whole vehicle, the sub-frame cross beam is arranged lower than the first sub-frame cross beam and the second sub-frame cross beam.

[0018] Furthermore, each of the subframe longitudinal beams includes a longitudinal beam front section and a longitudinal beam rear section connected together; the subframe cross beam is connected between the two longitudinal beam rear sections; each of the longitudinal beam front sections includes a first curved beam and a second curved beam arranged oppositely, and in the up and down direction of the vehicle, the first curved beam is arched upward, and the second curved beam is arched downward.

[0019] Furthermore, the subframe is integrally cast.

[0020] In addition, another object of the present invention is to provide a vehicle, which includes the above-mentioned subframe.

[0021] The subframe and the vehicle described in the utility model are provided with the above-mentioned subframe cross beam, which can be beneficial to achieving lightweight and improving the safety performance of the subframe, thereby being beneficial to improving the quality of the entire vehicle.

[0022] Secondly, in the vertical direction of the vehicle, the subframe crossbeam is set lower than the first subframe crossbeam and the second subframe crossbeam, which is convenient for the layout and installation of the powertrain, suspension system, etc. on the subframe. The setting of the first curved beam and the second curved beam can increase the transmission channel of the subframe force, which is conducive to improving the structural strength of the subframe longitudinal beam, and is also conducive to achieving lightweight, and the two can also form a avoidance for surrounding parts. The subframe is cast in one piece, which is conducive to achieving overall lightweight. 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 2 , Figures 4 to 6 They are schematic diagrams of the structure of the subframe according to the embodiment of the utility model at different viewing angles;

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

[0027] Description of reference numerals:

[0028] 1. beam body; 10. bending section; 11. inner concave portion; 111. inner wall; 112. connecting arm; 12. cross arm mounting hole;

[0029] 2. Subframe longitudinal beam; 20. Vehicle body connection hole; 21. Front section of longitudinal beam; 211. First curved beam; 212. Second curved beam; 22. Rear section of longitudinal beam;

[0030] 3. first sub-frame crossbeam; 30. first mounting hole;

[0031] 4. a second subframe crossbeam; 40. a second mounting hole;

[0032] 5. Install the bracket. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] Taking the vehicle where the subframe crossbeam 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 known as the height direction, or the Z direction of the whole vehicle), the left and right direction (also known as the width direction, or the Y direction of the whole vehicle), and the front and rear direction (also known as the length direction, or the X direction of the whole 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".

[0036] In addition, in the description of the present invention, unless otherwise clearly defined, 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] Embodiment 1

[0039] The present embodiment relates to a subframe cross beam, which is beneficial to improving the structural performance of the subframe and achieving lightweight, and has good use effect.

[0040] In terms of overall structure, Figures 1 to 6 As shown, the subframe cross beam of this embodiment includes a cross beam body 1. One side of the cross beam body 1 is provided with an inner recess 11 extending along the length direction of the cross beam body 1, and a plurality of connecting arms 112 are provided in the inner recess 11.

[0041] Furthermore, a plurality of connecting arms 112 are sequentially arranged along the extension direction of the inner recess 11 , and each connecting arm 112 is connected between two opposite inner walls 111 of the inner recess 11 , and any two adjacent connecting arms 112 are cross-connected at the inner wall 111 on one side of the inner recess 11 .

[0042] At this time, as set above, the inner recess 11 and any two adjacent connecting arms 112 are cross-connected at the inner wall 111 on one side of the inner recess 11, so that the beam body 1 itself constitutes a truss-like structure, which can reduce the use of materials and facilitate lightweighting. At the same time, it can also utilize the characteristics of the truss structure such as high strength and reliability to improve the structural performance of the beam body 1, thereby improving the structural load-bearing and safety performance of the sub-frame.

[0043] Based on the above overall introduction, in detail, in this embodiment, in a specific implementation, the subframe where the subframe crossbeam of this embodiment is located can be preferably a rear subframe, and the subframe middle crossbeam can be preferably set as a subframe middle crossbeam. Figure 3 As shown, the inner recess 11 is divided into a plurality of grooves by each connecting arm 112, and each groove can be roughly triangular in shape as a whole, so as to facilitate any two adjacent connecting arms 112 to be cross-connected at the inner wall 111 on one side of the inner recess 11, thereby facilitating the crossbeam body 1 itself to form a truss-like structure.

[0044] In this embodiment, as a preferred implementation form, see Figure 4 As shown, the cross beam body 1 has a curved section 10 that arches upward, and the curved section 10 is arranged near one end of the cross beam body 1. This facilitates the avoidance of surrounding components and facilitates the layout of the entire vehicle. The surrounding components here may include, for example, a powertrain, a suspension assembly, etc.

[0045] In specific implementation, based on the above-mentioned setting of the sub-frame cross beam as the sub-frame middle cross beam, the bent section 10 of this embodiment is close to one end of the cross beam body 1, and can preferably be one end of the sub-frame cross beam close to the right sub-frame longitudinal beam 2, so as to facilitate the overall structural layout of the sub-frame and the installation of related components.

[0046] At the same time, in this embodiment, as a preferred implementation form, mounting holes 12 are respectively provided at both ends of the cross beam body 1, and the mounting holes 12 are used to install the cross arms in the suspension system. It can be understood that the installation and arrangement of each cross arm in the suspension system can be facilitated by the arrangement of the cross arm mounting holes 12. In the specific structure, each cross arm mounting hole 12 is arranged through the cross beam body 1 along the front-rear direction of the vehicle.

[0047] Furthermore, in this embodiment, as a preferred implementation form, combined with Figure 2 and Figure 3 As shown, the inner concave portion 11 is located at the bottom of the cross beam body 1, and at this time, each connecting arm 112 is connected between two opposite inner walls 111 of the inner concave portion 11 in the front-rear direction of the vehicle. The main advantage of this arrangement is that it can help improve the truss structure's resistance to the bending of the cross beam body 1 in the up-and-down direction of the vehicle, and improve the rigidity of the cross beam body 1 in the left-and-right direction of the vehicle.

[0048] Also as a preferred implementation form, the crossbeam body 1 of this embodiment is integrally cast and can be supported by aluminum material to ensure molding quality and achieve lightweight.

[0049] The subframe cross beam of the present embodiment is connected between two opposite inner walls 111 of the inner recess 11 through each connecting arm 112. Any two adjacent connecting arms 112 are cross-connected at the inner wall 111 on one side of the inner recess 11, so that the cross beam body 1 itself can form a truss structure, which can not only achieve lightweight, but also utilize the characteristics of high rigidity and reliability of the truss structure to improve the structural performance of the cross beam body 1, thereby facilitating the improvement of the quality of the subframe.

[0050] Furthermore, the arrangement of the curved section 10 is beneficial to the overall structure and component arrangement of the sub-frame. At this time, the inner recess 11 is located at the bottom of the cross beam body 1, and the cross beam body 1 forms a truss-like structure, which can also compensate for the adverse effects of the curved section 10 on the overall structural performance of the cross beam body 1, so that the sub-frame cross beam can not only meet the structural arrangement of the sub-frame and the installation requirements of components, but also take into account good structural performance and lightweight.

[0051] Embodiment 2

[0052] This embodiment relates to a subframe, which has an overall structure such as Figures 1 to 6 As shown, it includes two sub-frame longitudinal beams 2 arranged opposite to each other on the left and right, and a sub-frame cross beam connected between the two sub-frame longitudinal beams 2 as in the first embodiment.

[0053] Furthermore, in this embodiment, as a preferred implementation form, Figure 1 and Figure 5 As shown, the subframe further includes a first subframe crossbeam 3 and a second subframe crossbeam 4 connected between two subframe longitudinal beams 2. Meanwhile, in the front-rear direction of the vehicle, the subframe crossbeam is located between the first subframe crossbeam 3 and the second subframe crossbeam 4.

[0054] In specific implementation, the subframe of this embodiment can be, for example, a rear subframe, the first subframe crossbeam 3 and the second subframe crossbeam 4 can be, for example, a front subframe crossbeam and a rear subframe crossbeam, and the subframe crossbeam in the first embodiment is a middle subframe crossbeam. Therefore, based on the lightweight and good structural performance of the subframe crossbeam in the first embodiment, the subframe can also have lightweight and good structural performance, thereby improving the use effect of the subframe.

[0055] At the same time, refer to Figure 2As shown, the above-mentioned subframe cross beam includes a main section extending along the left-right direction of the whole vehicle, and connecting sections arranged at both ends of the main section. Each connecting section extends forward along the left-right direction of the whole vehicle and connects the subframe longitudinal beam 2 on the corresponding side, so that when viewed from the up-down direction of the whole vehicle, the subframe cross beam is arched backward to a certain extent. In this way, the structural strength can be improved and it is also beneficial to avoid surrounding components.

[0056] Furthermore, in this embodiment, as a preferred implementation form, refer to Figure 4 As shown in , in the vertical direction of the vehicle, the subframe crossbeam is arranged lower than the first subframe crossbeam 3 and the second subframe crossbeam 4, so as to form a certain degree of avoidance in the vertical direction of the vehicle, thereby facilitating the arrangement and installation of peripheral components such as the powertrain and suspension system on the subframe.

[0057] In addition, in this embodiment, as a preferred implementation form, Figure 1 and Figure 6 As shown, each of the subframe longitudinal beams 2 includes a longitudinal beam front section 21 and a longitudinal beam rear section 22 connected together. Specifically, the subframe cross beam is connected between the two longitudinal beam rear sections 22 to have good connection strength. Each longitudinal beam front section 21 includes a first curved beam 211 and a second curved beam 212 arranged oppositely, and in the vertical direction of the whole vehicle, the first curved beam 211 is arched upward, and the second curved beam 212 is arched downward.

[0058] It can be understood that the arrangement of the first curved beam 211 and the second curved beam 212 can form a force transmission path from the first curved beam 211 to the rear section 22 of the longitudinal beam and a force transmission path from the second curved beam 212 to the rear section 22 of the longitudinal beam, thereby increasing the transmission and dispersion effect of the sub-frame force, which is beneficial to improving the structural strength of the sub-frame longitudinal beam 2, and is also beneficial to achieving lightweight. The avoidance space formed between the first curved beam 211 and the second curved beam 212 can also form an avoidance for surrounding components.

[0059] It can be understood here that, based on the setting of the subframe crossbeam, the subframe of this embodiment can also be built with multiple force transmission rings as a whole to improve the force transmission effect. The first force transmission ring can be composed of the subframe longitudinal beams 2 on both sides, the first subframe crossbeam 3 and the second subframe crossbeam 4. The second force transmission ring can be composed of the above-mentioned first curved beam 211, the second curved beam 212 and the rear section of the longitudinal beam 22. The third force transmission ring can be composed of the first subframe crossbeam 3, the subframe longitudinal beams 2 on both sides and the subframe crossbeam (crossbeam body 1). The fourth force transmission ring can be composed of the second subframe crossbeam 4, the subframe longitudinal beams 2 on both sides and the subframe crossbeam (crossbeam body 1), thereby making the subframe have good collision safety.

[0060] In addition, in this embodiment, as a preferred implementation form, the subframe is integrally cast, and specifically can be cast using aluminum material, so as to achieve overall lightweight. At the same time, the integral casting of the subframe is also conducive to improving the molding quality and overall structural strength.

[0061] It is worth mentioning that the front and rear ends of each subframe longitudinal beam 2 of the present embodiment are respectively provided with a body connection hole 20, each body connection hole 20 is arranged through the upper and lower directions of the whole vehicle, and constitutes the installation point for connecting the subframe with the body of the vehicle. In specific implementation, each body connection hole 20 is also installed with a connection suspension for connecting with the body.

[0062] At the same time, the first subframe cross beam 3 of the present embodiment is provided with a first mounting hole 30 which is arranged through the front-to-rear direction of the vehicle, and the second subframe cross beam 4 is provided with a second mounting hole 40 which is arranged through the front-to-rear direction of the vehicle. A powertrain suspension for connecting to the powertrain is also installed in the first mounting hole 30 and the second mounting hole 40. In specific implementation, the number and arrangement of the first mounting holes 30 and the second mounting holes 40 can be set and adjusted accordingly according to the actual installation requirements of the powertrain. For example, the second mounting holes 40 are two arranged at intervals on the second subframe cross beam 4 along the left-right direction of the vehicle, and when viewed from the up-down direction of the vehicle, the connecting line of the first mounting hole 30 and the two second mounting holes 40 is arranged in a triangle.

[0063] Secondly, refer again Figures 1 to 6 As shown, in this embodiment, a plurality of mounting brackets 5 for mounting the suspension system are provided on the subframe, and for example, each mounting bracket 5 can be specifically connected to each swing arm in the suspension system. Of course, the number and arrangement of the mounting brackets 5 can be set and adjusted accordingly according to the actual installation requirements of the suspension system, for example, the top and bottom of each subframe longitudinal beam 2 are provided with mounting brackets 5, and the mounting brackets 5 on each subframe longitudinal beam 2 are distributed at the front end or the rear end, etc.

[0064] Of course, all structures not mentioned in the sub-frame of this embodiment can refer to the relevant structural parts of the sub-frame well known to those skilled in the art, especially the rear sub-frame, and will not be described in detail here.

[0065] In addition, this embodiment also provides a vehicle, which includes the above-mentioned subframe.

[0066] The subframe and vehicle of this embodiment, by providing the subframe cross beam of the first embodiment, can utilize the advantages of the subframe cross beam in both light weight and good structural performance to improve the light weight and safety performance of the subframe, thereby facilitating the improvement of the quality and market competitiveness of the entire vehicle.

[0067] 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 crossbeam, characterized in that: It comprises a beam body (1); One side of the crossbeam body (1) is provided with an inner recess (11) extending along the length direction of the crossbeam body (1), and a plurality of connecting arms (112) are provided in the inner recess (11); The plurality of connecting arms (112) are arranged in sequence along the extension direction of the inner recess (11), and each of the connecting arms (112) is connected between two opposite inner walls (111) of the inner recess (11), and any two adjacent connecting arms (112) are cross-connected at one inner wall (111) of the inner recess (11).

2. The subframe cross beam according to claim 1, characterized in that: The cross beam body (1) has a curved section (10) that arches upward, and the curved section (10) is arranged close to one end of the cross beam body (1).

3. The subframe cross member according to claim 1, characterized in that: Both ends of the crossbeam body (1) are respectively provided with mounting holes (12), and the mounting holes (12) are used to mount a cross arm in a suspension system.

4. The subframe cross member according to any one of claims 1 to 3, characterized in that: The inner recess (11) is located at the bottom of the beam body (1); and / or, The crossbeam body (1) is integrally cast.

5. A subframe, characterized in that: The vehicle comprises two sub-frame longitudinal beams (2) arranged opposite to each other on the left and right sides, and a sub-frame cross beam according to any one of claims 1 to 4 connected between the two sub-frame longitudinal beams (2).

6. The subframe according to claim 5, characterized in that: It also includes a first sub-frame cross beam (3) and a second sub-frame cross beam (4) connected between the two sub-frame longitudinal beams (2); In the front-rear direction of the whole vehicle, the subframe cross beam is located between the first subframe cross beam (3) and the second subframe cross beam (4).

7. The subframe according to claim 6, characterized in that: In the vertical direction of the whole vehicle, the subframe cross beam is arranged lower than the first subframe cross beam (3) and the second subframe cross beam (4).

8. The subframe according to claim 5, characterized in that: Each of the auxiliary frame longitudinal beams (2) comprises a longitudinal beam front section (21) and a longitudinal beam rear section (22) connected together; The subframe crossbeam is connected between the two longitudinal beam rear sections (22); Each longitudinal beam front section (21) comprises a first curved beam (211) and a second curved beam (212) which are arranged opposite to each other, and in the vertical direction of the vehicle, the first curved beam (211) is arched upward, and the second curved beam (212) is arched downward.

9. The subframe according to any one of claims 5 to 8, characterized in that: The auxiliary frame is integrally cast.

10. A vehicle, characterized in that: The vehicle comprises the subframe according to any one of claims 5 to 9.

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