CN217835756U - Sub vehicle frame assembly and vehicle - Google Patents
Sub vehicle frame assembly and vehicle Download PDFInfo
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- CN217835756U CN217835756U CN202222184867.XU CN202222184867U CN217835756U CN 217835756 U CN217835756 U CN 217835756U CN 202222184867 U CN202222184867 U CN 202222184867U CN 217835756 U CN217835756 U CN 217835756U
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- lap joint
- longitudinal beams
- subframe assembly
- transverse
- cross member
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Abstract
The utility model discloses a sub vehicle frame assembly and vehicle, sub vehicle frame assembly includes: the two longitudinal beams are arranged at intervals transversely; the transverse beam is arranged between the two longitudinal beams, the two transverse ends of the transverse beam are respectively in lap joint with the two longitudinal beams, lap joint extending portions are arranged at the two transverse ends of the transverse beam, and the lap joint extending portions extend towards the direction close to the longitudinal beams and are connected with the longitudinal beams in a lap joint mode. From this, set up the overlap joint extension through the horizontal both ends at the crossbeam, make the overlap joint extension extend the setting towards the direction of longeron to make overlap joint extension and longeron overlap joint, can increase the overlap joint area of crossbeam and longeron like this, thereby when linking to each other crossbeam and longeron welding, can increase the welding area of crossbeam and longeron, improve welding strength, reduce the risk of connection failure between crossbeam and the longeron, and then improve sub vehicle frame assembly's reliability and durability.
Description
Technical Field
The utility model belongs to the technical field of the vehicle technique and specifically relates to a sub vehicle frame assembly and vehicle are related to.
Background
The subframe is a very important safety and load-bearing component in a passenger vehicle chassis and is used for isolating the vibration of a driving unit and bearing and transmitting various forces and moments generated in the driving process of a vehicle. Whether the level of durability of the cross member of the subframe satisfies the requirement is directly related to the safety of driving as an important component.
In the correlation technique, the crossbeam of sub vehicle frame is reasonable inadequately with the structural design of longeron, and the joint strength of crossbeam and longeron is lower, and when sub vehicle frame bore great braking force, the structure inefficacy problem takes place easily with the longeron junction for the crossbeam, leads to sub vehicle frame's reliability lower, influences the security of driving.
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, the utility model provides a sub vehicle frame assembly, this sub vehicle frame assembly reliability and durability are better.
The utility model discloses a vehicle is further proposed.
According to the utility model discloses sub vehicle frame assembly, include: the number of the longitudinal beams is two, and the two longitudinal beams are arranged at intervals transversely; the transverse beam is arranged between the two longitudinal beams, the two transverse ends of the transverse beam are respectively in lap joint with the two longitudinal beams, lap joint extending parts are arranged at the two transverse ends of the transverse beam, and the lap joint extending parts extend towards the direction close to the longitudinal beams and are in lap joint with the longitudinal beams.
From this, set up the overlap joint extension through the horizontal both ends at the crossbeam, make the overlap joint extension set up towards the direction extension of longeron to make overlap joint extension and longeron overlap joint, can increase the overlap joint area of crossbeam and longeron like this, thereby when linking to each other crossbeam and longeron welding, can increase the welding area of crossbeam and longeron, improve welding strength, reduce the risk of connecting the failure between crossbeam and the longeron, and then improve sub vehicle frame assembly's reliability and durability.
According to some embodiments of the invention, the overlapping extension is circular arc shaped.
According to some embodiments of the invention, the cross beam and the overlap extension are provided with a transition arc therebetween.
According to some embodiments of the invention, the overlap extension is provided with the beam integrated into one piece.
According to some embodiments of the invention, the beam comprises: the upper cross beam plate and the lower cross beam plate are arranged below the upper cross beam plate and fixedly connected with the upper cross beam plate, the two transverse ends of the upper cross beam plate are respectively in lap joint with the two longitudinal beams, the two transverse ends of the lower cross beam plate are respectively in lap joint with the two longitudinal beams, and the lap joint extension parts are arranged at the two transverse ends of the lower cross beam plate.
According to some embodiments of the utility model, the horizontal both ends of crossbeam upper plate are provided with lower concave portion of reducing, lower concave portion of reducing is close to crossbeam upper plate overlap joint the overlap joint of longeron sets up.
According to some embodiments of the invention, the lower concave thinning portion is provided on the rear end face of the beam upper plate.
According to the utility model discloses a some embodiments, sub vehicle frame assembly still includes the suspension support, the support mounting groove has been seted up on the crossbeam, the suspension support set up in the support mounting groove and with the cooperation of the horizontal both sides overlap joint of support mounting groove, keep away from the horizontal both sides orientation of support mounting groove the direction of crossbeam is extended and is set up.
According to the utility model discloses a some embodiments, the horizontal both sides orientation of support mounting groove is kept away from the extension length of the direction of crossbeam is L, and L satisfies the relational expression: l is more than or equal to 30mm and less than or equal to 50mm.
According to the utility model discloses vehicle, include: the subframe assembly described above.
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 partial schematic view of a subframe assembly according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of another perspective of a subframe assembly according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of the subframe assembly of FIG. 1 according to an embodiment of the present invention;
fig. 4 is a partial schematic view of another perspective of a subframe assembly according to an embodiment of the present invention.
Reference numerals:
100. a subframe assembly;
10. a stringer;
20. a cross beam; 21. a beam upper plate; 211. a lower concave thinning part; 22. a cross beam lower plate; 221. overlapping the extension; 222. a transition arc; 23. a bracket mounting groove;
30. and (5) suspending the bracket.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
Referring to fig. 1-4, a subframe assembly 100 according to an embodiment of the present invention will be described, where the subframe assembly 100 may be applied to a vehicle.
Referring to fig. 1 to 4, a subframe assembly 100 according to an embodiment of the present invention may mainly include: the transverse beam comprises longitudinal beams 10 and a transverse beam 20, wherein the number of the longitudinal beams 10 is two, the two longitudinal beams 10 are transversely arranged at intervals, the transverse beam 20 is arranged between the two longitudinal beams 10, the two transverse ends of the transverse beam 20 are respectively in lap joint with the two longitudinal beams 10, lap joint extending portions 221 are arranged at the two transverse ends of the transverse beam 20, and the lap joint extending portions 221 extend towards the direction close to the longitudinal beams 10 and are in lap joint with the longitudinal beams 10.
Specifically, the two longitudinal beams 10 are transversely arranged at intervals, the cross beam 20 is arranged between the two longitudinal beams 10, and the two transverse ends of the cross beam 20 are respectively in lap joint with the two longitudinal beams 10, so that the cross beam 20 and the longitudinal beams 10 can be welded and connected at the lap joint, and the connection between the cross beam 20 and the longitudinal beams 10 is realized, so that the whole structure of the subframe assembly 100 is realized, the subframe assembly 100 can bear and transmit various forces and moments generated in the driving process of the vehicle, and the normal driving of the vehicle is ensured.
Further, when the subframe assembly 100 is subjected to a braking force, the cross beam 20 and the longitudinal beam 10 tend to move in a mutually pulling manner, so that the joint between the cross beam 20 and the longitudinal beam 10 is prone to failure, the lap extensions 221 are arranged at the two transverse ends of the cross beam 20, so that the lap extensions 221 extend in a direction close to the longitudinal beam 10 and are in lap joint with the longitudinal beam 10, so that on the premise that the two transverse ends of the cross beam 20 are in lap joint with the two longitudinal beams 10 respectively, the lap joint area between the longitudinal beam 10 and the cross beam 20 can be further increased, so that the lap joint extensions 221 and the longitudinal beam 10 can be welded to each other, the joint strength and the fatigue strength of the cross beam 20 and the longitudinal beam 10 can be increased, the failure risk at the lap joint between the cross beam 20 and the longitudinal beam 10 can be further reduced, and the reliability and the durability of the subframe assembly 100 can be improved.
As shown in fig. 2 and 4, the overlapping extension 221 has a circular arc shape. Specifically, the lap joint extending portion 221 may be configured to be in a circular arc shape, so that when the lap joint extending portion 221 is welded and connected with the longitudinal beam 10, the stress between the lap joint extending portion 221 and the longitudinal beam 10 may be effectively dispersed by the circular arc design, and the problems of stress concentration or fatigue cracking and the like of the lap joint extending portion 221 may be avoided, so that the structural design of the lap joint extending portion 221 may be optimized, the failure risk of the lap joint portion between the cross beam 20 and the longitudinal beam 10 may be further reduced, and the reliability and durability of the subframe assembly 100 may be further improved.
As shown in fig. 2 and 4, a transition arc 222 is disposed between the beam 20 and the overlapping extension 221. Specifically, by arranging the transition arc 222 between the cross beam 20 and the lap joint extension portion 221, the connection transition between the cross beam 20 and the lap joint extension portion 221 can be more smooth and natural, and a sharp structure at the joint of the cross beam 20 and the lap joint extension portion 221 is avoided, so that the stress concentration at the joint of the cross beam 20 and the lap joint extension portion 221 can be prevented, the stress distribution at the joint of the cross beam 20 and the lap joint extension portion 221 is more uniform, the sub-frame assembly 100 is prevented from being damaged due to the cracking and other structures caused by the stress concentration when bearing a larger braking force, and the durability of the sub-frame assembly 100 can be improved.
Further, the lap extensions 221 are provided integrally with the cross member 20. Specifically, by integrally forming the lap joint extending portion 221 and the cross beam 20, the production process of the cross beam 20 and the lap joint extending portion 221 can be simplified, the production efficiency of the subframe assembly 100 can be improved, the connection strength between the cross beam 20 and the lap joint extending portion 221 can be improved, the connection between the cross beam 20 and the lap joint extending portion 221 is prevented from being cracked and damaged due to fatigue under long-term working conditions, and the structural reliability of the subframe assembly 100 can be further improved.
As shown in fig. 1 and 2, the cross beam 20 may mainly include: the cross beam comprises a cross beam upper plate 21 and a cross beam lower plate 22, wherein the cross beam lower plate 22 is arranged below the cross beam upper plate 21 and is fixedly connected with the cross beam upper plate 21, the two transverse ends of the cross beam upper plate 21 are respectively in lap joint with the two longitudinal beams 10, the two transverse ends of the cross beam lower plate 22 are respectively in lap joint with the two longitudinal beams 10, and lap joint extension parts 221 are arranged at the two transverse ends of the cross beam lower plate 22. Specifically, the cross beam lower plate 22 is disposed below the cross beam upper plate 21 and is fixedly connected to the cross beam upper plate 21, the two transverse ends of the cross beam upper plate 21 are respectively in lap joint with the two longitudinal beams 10, and the two transverse ends of the cross beam lower plate 22 are respectively in lap joint with the two longitudinal beams 10, so that lap joint between the cross beam 20 and the two longitudinal beams 10 can be achieved, the structure of the subframe assembly 100 is achieved, and normal operation of the subframe assembly 100 is guaranteed.
Further, considering that the space below the subframe assembly 100 is larger than the space above the subframe assembly 100, the lap joint extending portions 221 are arranged at the two transverse ends of the cross beam lower plate 22, so that the lap joint area of the cross beam 20 and the longitudinal beam 10 is increased through the lap joint extending portions 221, and the failure risk of the joint of the cross beam 20 and the longitudinal beam 10 is reduced, the space below the subframe assembly 100 can be fully utilized, the arrangement of other components of the vehicle above the subframe assembly 100 is ensured, and the structural layout of the subframe assembly 100 can be optimized.
As shown in fig. 1 and 3, the cross member upper plate 21 is provided with lower concave portions 211 at both lateral ends thereof, and the lower concave portions 211 are provided adjacent to the overlapping portions where the cross member upper plate 21 overlaps the longitudinal members 10. Specifically, the lower concave thinning portions 211 can be arranged at the two transverse ends of the upper beam plate 21, and the lower concave thinning portions 211 are arranged at the joint where the upper beam plate 21 is in lap joint with the longitudinal beam 10, so that the rigidity of the joint of the beam 20 and the longitudinal beam 10 can be weakened, the force transmission effect of the beam 20 can be reduced, the stress of the joint of the beam 20 and the longitudinal beam 10 can be reduced, the service life of a welding seam between the beam 20 and the longitudinal beam 10 can be prolonged, and the failure risk of the joint of the beam 20 and the longitudinal beam 10 can be reduced.
Further, as shown in fig. 1 and 3 in combination, the lower concave thinned portion 211 is provided on the rear end surface of the beam upper plate 21. Specifically, when the sub-frame assembly 100 bears braking force, the rear end face of the cross beam upper plate 21 is stressed greatly, and the lower concave thinning portion 211 is arranged on the rear end face of the cross beam upper plate 21, so that the stress on the rear end face of the cross beam upper plate 21 can be weakened, the maximum stress value of the lap joint of the cross beam 20 and the longitudinal beam 10 can be reduced, the service life of a weld joint of the lap joint can be further prolonged, and the failure risk of the joint of the cross beam 20 and the longitudinal beam 10 can be further reduced.
Referring to fig. 1 and 2, the subframe assembly 100 may further include a suspension bracket 30, the cross beam 20 is provided with a bracket mounting groove 23, the suspension bracket 30 is disposed in the bracket mounting groove 23 and is in lap-joint fit with two lateral sides of the bracket mounting groove 23, and two lateral sides of the bracket mounting groove 23 extend toward a direction away from the cross beam 20. Specifically, by providing the bracket mounting groove 23 on the cross beam 20, the suspension bracket 30 can be disposed in the bracket mounting groove 23, and the suspension bracket 30 is in lap-joint fit with both lateral sides of the bracket mounting groove 23, so that stable mounting arrangement of the suspension bracket 30 on the cross beam 20 can be ensured.
Further, the lateral sides of the bracket mounting grooves 23 extend towards the direction away from the cross beam 20, so that the area of the overlap joint between the lateral sides of the bracket mounting grooves 23 and the suspension bracket 30 can be increased, the dynamic and static rigidity of the suspension mounting points can be improved, and the NVH performance of the auxiliary frame assembly 100 can be improved.
Further, as shown in fig. 1, the extension lengths of the lateral sides of the bracket mounting groove 23 toward the direction away from the cross beam 20 are L, and L satisfies the relation: l is more than or equal to 30mm and less than or equal to 50mm. Specifically, the extension length of the direction of keeping away from the beam 20 from the lateral two sides of the bracket mounting groove 23 is set within a reasonable range, so that on one hand, the extension length can be ensured not to be too small, the increase of the area of the lap joint fit of the lateral two sides of the bracket mounting groove 23 and the suspension mounting bracket is ensured, the dynamic stiffness and the static stiffness of the suspension mounting are ensured to be improved, on the other hand, the extension length can be ensured not to be too large, the weight of the beam 20 is prevented from being increased, the structure of the beam 20 is overstaffed, the structural compactness of the auxiliary frame assembly 100 can be ensured, and the normal work of the auxiliary frame assembly 100 is ensured.
According to the utility model discloses vehicle can mainly include: the subframe assembly 100 described above. Specifically, by applying the subframe assembly 100 to a vehicle, the failure risk of the lap joint of the cross beam 20 and the longitudinal beam 10 can be reduced, and the dynamic stiffness and the static stiffness of the suspension mounting point can be improved, so that the structural reliability of the vehicle can be improved, the NVH performance of the vehicle can be improved, and the product competitiveness of the vehicle can be improved.
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 specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 (10)
1. A subframe assembly (100) comprising:
the number of the longitudinal beams (10) is two, and the two longitudinal beams (10) are arranged at intervals in the transverse direction;
the transverse beam (20), the transverse beam (20) is arranged between the longitudinal beams (10), the two transverse ends of the transverse beam (20) are respectively in lap joint with the longitudinal beams (10), lap joint extension parts (221) are arranged at the two transverse ends of the transverse beam (20), and the lap joint extension parts (221) are arranged towards the direction close to the longitudinal beams (10) in an extending mode and are in lap joint with the longitudinal beams (10).
2. The subframe assembly (100) of claim 1 wherein said overlapping extension (221) is radiused.
3. The subframe assembly (100) of claim 1 wherein a transition arc (222) is provided between said cross member (20) and said overlap extension (221).
4. The subframe assembly (100) of claim 1 wherein said lap joint extension (221) is integrally formed with said cross member (20).
5. The subframe assembly (100) of claim 1 wherein said cross member (20) comprises: the novel combined type beam comprises a beam upper plate (21) and a beam lower plate (22), wherein the beam lower plate (22) is arranged below the beam upper plate (21) and is fixedly connected with the beam upper plate (21), the two transverse ends of the beam upper plate (21) are respectively in lap joint with the longitudinal beams (10), the two transverse ends of the beam lower plate (22) are respectively in lap joint with the longitudinal beams (10), and lap joint extending parts (221) are arranged at the two transverse ends of the beam lower plate (22).
6. The subframe assembly (100) of claim 5 wherein said cross member upper plate (21) is provided at lateral ends thereof with lower recessed portions (211), said lower recessed portions (211) being provided adjacent to the overlapping portions where said cross member upper plate (21) overlaps said side members (10).
7. The subframe assembly (100) of claim 6 wherein said lower recess (211) is disposed on a rear face of said cross member upper plate (21).
8. The subframe assembly (100) of claim 1 further comprising a suspension bracket (30), wherein the cross member (20) defines a bracket mounting slot (23), the suspension bracket (30) is disposed in the bracket mounting slot (23) and is in lap-fit with two lateral sides of the bracket mounting slot (23), and two lateral sides of the bracket mounting slot (23) extend away from the cross member (20).
9. The subframe assembly (100) of claim 8 wherein said bracket mounting slot (23) has lateral sides extending away from said cross member (20) for a length L that satisfies the relationship: l is more than or equal to 30mm and less than or equal to 50mm.
10. A vehicle, characterized by comprising: the subframe assembly (100) of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222184867.XU CN217835756U (en) | 2022-08-18 | 2022-08-18 | Sub vehicle frame assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222184867.XU CN217835756U (en) | 2022-08-18 | 2022-08-18 | Sub vehicle frame assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217835756U true CN217835756U (en) | 2022-11-18 |
Family
ID=84015087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222184867.XU Active CN217835756U (en) | 2022-08-18 | 2022-08-18 | Sub vehicle frame assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217835756U (en) |
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2022
- 2022-08-18 CN CN202222184867.XU patent/CN217835756U/en active Active
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