CN218662036U

CN218662036U - Subframe and vehicle

Info

Publication number: CN218662036U
Application number: CN202223186839.8U
Authority: CN
Inventors: 陈帅彰; 岳志强
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-21
Anticipated expiration: 2032-11-28

Abstract

The utility model discloses a sub vehicle frame and vehicle, sub vehicle frame includes: a stringer; the crossbeam, the crossbeam connect in between the longeron, the front end structure of crossbeam is the first domes of backward bulge, the rear end structure of crossbeam is the second domes of forward bulge, the aspect ratio and/or the quantity difference of first domes with the second domes, the installing support for the installation exhaust hangs, the installing support set up in on the crossbeam. Therefore, the front end and the rear end of the cross beam are designed, so that the structural strength of the cross beam can be effectively enhanced, the frequency avoidance can be realized, the exhaust vibration energy transfer can be reduced, and the exhaust vibration transfer to the vehicle body is attenuated.

Description

Subframe and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a sub vehicle frame and vehicle are related to.

Background

At present, the cross-country vehicle type is liked by more and more users, in order to satisfy the demand of market to cross-country vehicle type, the continuous generation motorcycle type of promoting, cross-country vehicle type not only will satisfy cross-country performance, still need provide quiet comfortable driving space in the car for the user, especially the NVH performance of vehicle.

In the related art, an exhaust system is a main excitation vibration noise source of a vehicle, and exhaust vibration can cause vehicle noise, for example, the exhaust system has large excitation and insufficient exhaust suspension vibration attenuation, and the exhaust suspension vibration attenuation is poor, so that the exhaust vibration is transmitted to an auxiliary frame to cause vehicle body vibration, and the problems of vibration and noise of a cab are caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an auxiliary frame, which has high structural strength and can effectively avoid frequency.

The utility model discloses a vehicle is further proposed.

According to the utility model discloses a sub vehicle frame, include: a longitudinal beam; the cross beam is connected between the longitudinal beams, the front end of the cross beam is constructed into a first arched structure protruding backwards, the rear end of the cross beam is constructed into a second arched structure protruding forwards, and the first arched structure and the second arched structure are different in aspect ratio and/or number; and the mounting bracket is used for mounting the exhaust hanger, and the mounting bracket is arranged on the cross beam.

From this, according to the utility model discloses a sub vehicle frame designs through front end and the rear end to the crossbeam, can strengthen the structural strength of crossbeam effectively, can also realize keeping away frequently, can reduce the transmission of exhaust vibration energy, and the decay is discharged to automobile body transmission vibration.

In some examples of the invention, the beam comprises: the lower plate is arranged on the upper plate, the front end of the upper plate is provided with the first arch-shaped structures, the rear end of the upper plate is provided with at least two second arch-shaped structures, at least one of the first arch-shaped structures and the second arch-shaped structures is provided with a third arch-shaped structure, and the third arch-shaped structures are arch pit structures.

In some examples of the present invention, the front end of the lower plate is provided with the first arch structure and the rear end is provided with the second arch structure, the second arch structure is further provided with a fourth arch structure recessed forward, and the fourth arch structure is an arch pit structure.

In some examples of the invention, the upper plate comprises: a front plate portion and a rear plate portion configured to be stepped therebetween, the front plate portion and the rear plate portion differing in width in a front-rear direction.

In some examples of the invention, the transition between the front plate portion and the rear plate portion is a fifth arch that protrudes forward or rearward.

In some examples of the present invention, the upper plate is provided with a plurality of reinforcing protrusions, at least two of the reinforcing protrusions are disposed on the upper plate in different extending directions.

In some examples of the present invention, the middle portion of the lower plate is provided with a sixth arch structure protruding upward or downward, the sixth arch structure is a triangle on the lower plate, a first lightening hole is provided in the sixth arch structure, and the first lightening hole is a triangle correspondingly.

In some examples of the present invention, each of left and right sides of at least one of the upper plate and the lower plate is provided with a plurality of second lightening holes, and the number and/or shape of the second lightening holes on the left and right sides are different.

In some examples of the invention, the longitudinal beam is provided with a triangular reinforcing bracket at a rear end edge of the cross beam.

According to the utility model discloses a vehicle, include: the auxiliary frame is provided.

Additional aspects and advantages of the 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.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a subframe assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of a subframe assembly according to an embodiment of the present invention;

FIG. 3 is a schematic view of a portion of a subframe assembly according to an embodiment of the present invention;

fig. 4 is a schematic view of a partial structure of the subframe assembly according to the embodiment of the present invention.

Reference numerals:

2. an auxiliary frame; 21. a cross beam; 22. a longitudinal beam; 23. a first dome; 24. a second dome; 25. an upper plate; 26. a lower plate; 27. a third dome; 28. a fourth dome; 29. a front plate portion; 30. a rear plate portion; 31. a fifth dome; 32. a reinforcing protrusion; 33. a sixth dome; 34. a first lightening hole; 35. a second lightening hole; 36. a reinforcing bracket; 4. mounting a bracket; 5. the exhaust is hung.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

In the following, referring to fig. 1-4, a subframe 2 according to an embodiment of the invention is described, which subframe 2 is applied in a vehicle, such as an off-road vehicle.

As shown in fig. 1 to 3, the subframe 2 includes: crossbeam 21 and longeron 22, crossbeam 21 is connected between longeron 22, longeron 22 is connected in the both sides of crossbeam 21 promptly, crossbeam 21 can be provided with the installing support 4 that the exhaust hung 5, installing support 4 can set up the front end at crossbeam 21, the front end of crossbeam 21 constructs for the convex first domes 23 backward, the rear end of crossbeam 21 constructs for convex second domes 24 forward, first domes 23 and second domes 24 are located the front and back both ends of crossbeam 21 respectively, the structural strength of crossbeam 21 can be promoted in the setting of first domes 23 and second domes 24 like this, thereby promote the structural strength of sub vehicle frame 2. And the arrangement of the first arch structure 23 and the second arch structure 24 can enable the two sides of the cross beam 21 to form a horn mouth-like structure, increase the welding area and strength between the cross beam and the longitudinal beam 22, further increase the structural strength of the auxiliary frame 2 and reduce the vibration response sensitivity. The improvement of the strength of the cross beam 21 can effectively increase the connection strength of the mounting bracket 4 and the cross beam 21.

Wherein the first dome 23 and the second dome 24 differ in aspect ratio and/or number. That is, the first dome 23 and the second dome 24 may have different aspect ratios; the number of first arches 23 and second arches 24 may also be different, for example, there may be one first arch 23 and two second arches 24; the first and

second arches

23 and 24 may both have different aspect ratios and numbers. The height-to-width ratio of the arch structure is the ratio of the height to the width of the arch structure, the height of the arch structure refers to the vertical distance from the highest point of the arch structure to the connecting line of the two ends of the arch structure, and the width of the arch structure refers to the distance between the two ends of the arch structure. The height-width ratio and/or the number of the first arch structure 23 and the second arch structure 24 are set to be different, so that the strength difference of the front side and the rear side of the auxiliary frame 2 can be realized, the vibration frequency of the front side and the rear side of the auxiliary frame 2 can be different, the frequency can be effectively avoided at the auxiliary frame 2, the exhaust vibration energy transmission can be reduced, the vibration of the exhaust is attenuated to the vehicle body, the vibration noise in the vehicle can be reduced, and a quiet and comfortable driving space is provided for a user.

From this, according to the utility model discloses sub vehicle frame 2 through designing the front end and the rear end to crossbeam 21, can strengthen crossbeam 21's structural strength effectively, can also realize keeping away frequently, can reduce the transmission of exhaust vibration energy, and the decay is discharged and is transmitted the vibration to the automobile body.

According to an alternative embodiment of the present invention, as shown in fig. 3, the cross beam 21 comprises: the structure comprises an upper plate 25 and a lower plate 26, wherein the lower plate 26 is arranged below the upper plate 25, the upper plate 25 is connected with the lower plate 26, a first arch structure 23 is arranged at the front end of the upper plate 25, at least two second arch structures 24 are arranged at the rear end of the upper plate 25, at least one of the first arch structure 23 and the second arch structure 24 is provided with a third arch structure 27, and the third arch structure 27 is an arch pit structure. The first and

second arches

23 and 24 are located at the front and rear ends of the upper plate 25, respectively, and thus the structural strength of the upper plate 25 can be improved by forming the first and

second arches

23 and 24 into a form of an arch having a smaller front and a larger rear. The arch-shaped dimple structure is located in at least one of the first arch 23 and the second arch 24, which may further increase the strength of the upper plate 25. For example, the first arch 23 may have an aspect ratio of 0.21, the at least two second arches 24 may be two, and the two second arches 24 may have aspect ratios of 0.15 and 0.09, respectively, so that the structural strength of the subframe 2 may be enhanced. That is, the first and

second arches

23 and 24 are not only different in number, but also different in aspect ratio, so that the frequencies can be better avoided.

Further, as shown in fig. 3, a first arch 23 is provided at the front end of the lower plate 26, a second arch 24 is provided at the rear end of the lower plate 26, a fourth arch 28 recessed forward is further provided on the second arch 24, and the fourth arch 28 is an arch pit structure. The first arch-shaped structure 23 and the second arch-shaped structure 24 are also respectively arranged at the front end and the rear end of the lower plate 26, so that the structural strength of the lower plate 26 can be improved, the arch-shaped pit structure is arranged in at least one of the first arch-shaped structure 23 and the second arch-shaped structure 24, the strength of the lower plate 26 can be further increased, the overall framework strength of the auxiliary frame 2 is improved, and the vibration response sensitivity of a vehicle body is further reduced. For example, the first dome 23 has an aspect ratio of 0.21, the second dome 24 has an aspect ratio of 0.09, and the fourth dome 28 has an aspect ratio of 0.3. Wherein the fourth dome 28 is located at a position one-third of the extending direction of the second dome 24, by disposing the fourth dome 28 at this position, the strength of the other side can be increased, and the vibration response sensitivity can be lowered.

As shown in fig. 3, the upper plate 25 includes: the front plate portion 29 and the rear plate portion 30 are configured in a step shape, the front plate portion 29 and the rear plate portion 30 are different in width in the front-rear direction, and a fifth arch structure 31 is formed at the transition of the front plate portion 29 and the rear plate portion 30. The two-step structure of 2. Furthermore, the step is designed as an arch, i.e., the fifth arch 31, thereby increasing the overall strength of the upper plate 25. The fifth arch 31 may be disposed to project rearwardly or forwardly.

Further, as shown in fig. 4, the upper plate 25 is provided with a plurality of reinforcing protrusions 32, and at least two reinforcing protrusions 32 extend in different directions on the upper plate 25. The plurality of reinforcing protrusions 32 can increase the structural strength of the upper plate 25, and can perform a frequency avoiding function at least to some extent by adjusting the extending direction of at least two reinforcing protrusions 32. For example, a part of the reinforcing protrusions 32 may extend in the left-right direction, and another part of the reinforcing protrusions 32 may extend in the front-rear direction.

Specifically, as shown in fig. 4, a sixth arch 33 protruding upward or downward is provided in the middle of the lower plate 26, the sixth arch 33 is triangular on the lower plate 26, and first lightening holes 34 are provided in the sixth arch 33, and the first lightening holes 34 are correspondingly triangular. The sixth arch structure 33 is located in the middle of the lower plate 26, the sixth arch structure 33 can strengthen the local structural strength of the weak portion of the middle of the lower plate 26, and the triangular first lightening hole 34 is located inside the sixth arch structure 33, so that the weight of the lower plate 26 can be reduced, and the light-weight design of the subframe 2 is achieved.

As shown in fig. 3 and 4, a plurality of second lightening holes 35 are respectively formed on the left and right sides of at least one of the upper plate 25 and the lower plate 26, and the number and/or shape of the second lightening holes 35 are different on the left and right sides, so that the plurality of second lightening holes 35 can reduce the weight of the subframe 2, thereby further realizing the lightweight design of the subframe 2. Moreover, by providing the plurality of second lightening holes 35 in different numbers and shapes, the structural strength of the left and right sides of the subframe 2 can be made different, and thus a certain degree of frequency avoidance can be achieved in the left-right direction. The plurality of second lightening holes 35 are at least one of circular, elongated and arc-shaped.

In addition, as shown in fig. 3, the longitudinal beam 22 is provided with a triangular reinforcing bracket 36 at the rear end edge of the cross beam 21, and the provision of the reinforcing bracket 36 can make the connection between the longitudinal beam 22 and the cross beam 21 more firm, thereby improving the overall structural strength of the subframe 2. The reinforcing brace 36 may be provided on the side rail 22 on the left side.

According to the utility model discloses vehicle, include: the subframe 2 of the above embodiment.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A subframe, comprising:

a stringer;

the cross beam is connected between the longitudinal beams, the front end of the cross beam is constructed into a first arched structure protruding backwards, the rear end of the cross beam is constructed into a second arched structure protruding forwards, and the first arched structure and the second arched structure are different in aspect ratio and/or number;

and the mounting bracket is used for mounting the exhaust hanger and is arranged on the cross beam.

2. The subframe of claim 1 wherein said cross member comprises: the lower plate is arranged on the upper plate, the front end of the upper plate is provided with the first arch-shaped structures, the rear end of the upper plate is provided with at least two second arch-shaped structures, at least one of the first arch-shaped structures and the second arch-shaped structures is provided with a third arch-shaped structure, and the third arch-shaped structures are arch-shaped pit structures.

3. The subframe of claim 2 wherein said lower plate has said first arch disposed at a forward end thereof and said second arch disposed at a rearward end thereof, said second arch further having a forwardly concave fourth arch disposed thereon, said fourth arch being an arch shaped dimple arrangement.

4. The subframe of claim 2 wherein said upper plate comprises: a front plate portion and a rear plate portion configured to be stepped therebetween, the front plate portion and the rear plate portion differing in width in a front-rear direction.

5. The subframe of claim 4 wherein said transition between said front and rear plate portions is a fifth arcuate structure that projects forwardly or rearwardly.

6. The subframe of claim 2 wherein said upper plate is provided with a plurality of reinforcing bosses, at least two of said reinforcing bosses extending in different directions from one another on said upper plate.

7. The subframe of claim 2 wherein said lower plate is provided with an upwardly or downwardly projecting sixth arch at a central portion thereof, said sixth arch being triangular in shape at said lower plate, said sixth arch being provided with first lightening holes therein, said first lightening holes correspondingly being triangular in shape.

8. The subframe according to claim 2 wherein said at least one of said upper and lower plates is provided with a plurality of second lightening holes on each of left and right sides thereof, and wherein said second lightening holes on each of the left and right sides are different in number and/or shape.

9. The subframe of claim 1 wherein said side members are provided with triangular reinforcement brackets at rear end edges of said cross members.

10. A vehicle, characterized by comprising: the subframe of any one of claims 1-9.