CN210634636U - Automobile auxiliary frame automobile body mounting point reinforcing structure - Google Patents
Automobile auxiliary frame automobile body mounting point reinforcing structure Download PDFInfo
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- CN210634636U CN210634636U CN201921090495.6U CN201921090495U CN210634636U CN 210634636 U CN210634636 U CN 210634636U CN 201921090495 U CN201921090495 U CN 201921090495U CN 210634636 U CN210634636 U CN 210634636U
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Abstract
The utility model relates to a car sub vehicle frame automobile body mounting point additional strengthening, including the crossbeam, the longeron, be fixed in the nut pipe support on the longeron, and be fixed in the nut pipe on the nut pipe support, be equipped with the through-hole that supplies the nut pipe to pass on the longeron, nut pipe support includes the support main part and locates the flange structure in the support main part, nut pipe and support main part fixed connection, flange structure and longeron fixed connection, flange structure is including the first flange structure who locates support main part bottom, locate the second flange structure of support main part both sides, and locate the third flange structure at support main part top, and third flange structure is opposite with first flange structure orientation, flank and longeron fixed connection of third flange structure both ends are through locating. Compared with the prior art, the utility model has the advantages of connect rigidity height, stable in structure, make easily, be difficult for the fracture.
Description
Technical Field
The utility model relates to a car frame especially relates to a car sub vehicle frame automobile body mounting point additional strengthening.
Background
Auxiliary frame and automobile body of automobileThe mounting point needs to bear complex loads of various road conditions, the rigidity and the strength of the mounting point of the auxiliary frame and the vehicle body have high requirements, the common design structure of the mounting point is shown in figure 1, and an assembly structure formed by longitudinal beams, nut pipe brackets, nut pipes and cross beams is connected with the auxiliary frame through bolts. The nut pipe support is welded with three surfaces of the longitudinal beam, the upper end of the nut pipe is welded with the nut pipe support through a round hole, as shown in fig. 2, the lower end of the nut pipe is welded with the cross beam which is lapped on the longitudinal beam, but the lower end of the nut pipe is not welded with the longitudinal beam body. Such a connection has some drawbacks: on one hand, in order to meet the requirements of a welding process, the nut pipe bracket is firstly welded in the longitudinal beam, so that the nut pipe is prevented from being directly welded with the longitudinal beam, a cross beam welded with the nut pipe bears a large load, large deformation is easily caused at the mounting point of the cross beam, and fatigue cracking of the cross beam is easily caused in a high stress area; on the other hand, because the nut pipe support and the nut pipe are welded in a circle, the number of welding areas on the nut pipe is small, the welding precision and the welding quality are not easy to guarantee, the welding support is easy to deform greatly under stress, a high stress area is generated, and the nut pipe support is easy to crack. Chinese patent CN209008667U discloses a nut tube mounting bracket, which includes a bracket main body, a first connecting portion, a second connecting portion and a third connecting portion, wherein the first connecting portion and the second connecting portion are respectively disposed at two sides of the bracket main body, the third connecting portion is disposed at the bottom of the bracket main body, the bracket main body includes a first main body portion, a second main body portion and a fourth connecting portion, the first main body portion and the second main body portion are respectively disposed at two sides of the fourth connecting portion, and the fourth connecting portion is an arc structure for wrapping a rear sub-frame mounting nut tube; however, the structure has the problem of unstable welding with the longitudinal beam in the practical application process, firstly, the nut pipe welding bracket in the patent technology is
The structure is of a structure, only two joints are arranged between the structure and the longitudinal beam, the number of welding surfaces is small, the structure is not beneficial to uniform distribution of stress, and the structure cannot meet the requirement of higher rigidity; in addition, the bottom of the structure has a large covering contact area with the nut tube, and the nut tube is mounted on the longitudinal beamAnd then, the through hole extending out of the nut pipe on the longitudinal beam is shielded, the nut pipe cannot be directly welded with the longitudinal beam, high stress can be caused, and the transverse beam is deformed due to overlarge stress.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a car sub vehicle frame automobile body mounting point additional strengthening in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a reinforcing structure for a car auxiliary frame car body mounting point comprises a cross beam, a longitudinal beam, a nut pipe bracket fixed on the longitudinal beam and a nut pipe fixed on the nut pipe bracket, the longitudinal beam is provided with a through hole for the nut tube to pass through, the nut tube bracket comprises a bracket main body and a flanging structure arranged on the bracket main body, the nut tube is fixedly connected with the bracket main body, the flanging structure is fixedly connected with the longitudinal beam, the flanging structure comprises a first flanging structure arranged at the bottom of the bracket main body, second flanging structures arranged at two sides of the bracket main body and a third flanging structure arranged at the top of the bracket main body, and the third flanging structure and the first flanging structure are opposite in direction, and the third flanging structure is fixedly connected with the longitudinal beam through side wings arranged at two ends of the third flanging structure.
The first flanging structure is a split flanging structure arranged on two sides of the nut pipe, and a first notch is formed between the split flanging structure and the side wall of the nut pipe.
The nut pipe is fixedly connected with the through hole in the longitudinal beam.
And a second notch for spacing the second flanging structure and the third flanging structure is arranged on the nut pipe bracket.
And the bracket main body is provided with a cambered surface structure matched with the nut tube.
Two side surfaces of the nut pipe at opposite positions are fixed on the cambered surface structure through welding seams respectively.
The nut pipe comprises a pipe body and a base, and the base is fixedly connected with the cross beam.
The nut pipe is fixedly connected with the support main body, the nut pipe is fixedly connected with the longitudinal beam, and the nut pipe is fixedly connected with the cross beam through a welding process.
Compared with the prior art, the utility model has the advantages of it is following:
(1) viewed from the side, the nut tube support is
The structure is connected with the longitudinal beam through three welding surfaces, so that the stress is more uniformly dispersed, and the rigidity of the nut pipe bracket is improved;
(2) notches are formed in the corners of the flanging structures of the nut pipe support, and when the nut pipe support is manufactured by adopting a stamping process, the nut pipe support is not easy to crack, is easier to realize in the process and is convenient to process and produce;
(3) the bottom flanging structure of the nut pipe bracket is split, and a gap is arranged between the nut pipe bracket and the nut pipe, so that a through hole on a longitudinal beam can not be blocked, and the nut pipe and a vehicle body longitudinal beam can be conveniently welded;
(4) the utility model discloses a reinforced structure can satisfy the rigidity and the intensity requirement of sub vehicle frame mounting point on the automobile body, reduces the risk that mounting point department produced plastic deformation and fatigue fracture.
Drawings
FIG. 1 is a schematic structural diagram of a prior art reinforcing structure for a vehicle subframe body mounting point of an automobile;
FIG. 2 is a schematic structural view of a nut tube mounting bracket of the prior art;
FIG. 3 is a schematic structural view of the present invention;
fig. 4 is a schematic structural view of the nut tube mounting bracket of the present invention;
FIG. 5 is a schematic view of the assembly of the nut tube on the cross beam and the longitudinal beam according to the present invention;
FIG. 6 is a schematic view of the nut tube assembled to the cross beam according to the present invention;
in the figure, 1 is a longitudinal beam, 2 is a nut pipe bracket, 3 is a nut pipe, 4 is a cross beam, 5 is a nut pipe and nut pipe bracket welding seam, 61 is a first flanging structure, 62 is a second flanging structure, 63 is a third flanging structure, 631 is a side wing, 7 is a first notch, and 8 is a second notch.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.
Comparative example
The prior art is that a reinforcing structure of a vehicle body mounting point of an automobile auxiliary frame is shown in figure 1, and comprises an assembly structure formed by longitudinal beams 1, nut tube brackets 2, nut tubes 3 and cross beams 4 and connected with auxiliary frame bolts; the nut tube support 2 is welded with three surfaces of the longitudinal beam 1, the upper end of the nut tube 3 is welded with the nut tube support 2 through a round hole, as shown in fig. 2, the lower end of the nut tube 3 is welded with the cross beam 4 which is lapped on the longitudinal beam 1, but the nut tube 3 is not welded with the longitudinal beam 1.
On one hand, as shown in fig. 1, in order to meet the requirements of a welding process, a nut pipe bracket 2 is welded in a longitudinal beam 1 firstly, so that a through hole for a nut pipe 3 to pass through on the longitudinal beam 1 is blocked, the nut pipe 3 cannot be directly welded with the longitudinal beam 1, a cross beam 4 welded with the nut pipe 3 bears a large load, large deformation is easily generated at the installation point of the cross beam 4, and a high stress area causes fatigue cracking of the cross beam 4; on the other hand, as shown in fig. 2, since the nut tube bracket 2 and the nut tube 3 are welded by only one turn, the number of welding areas on the nut tube 3 is small, the welding accuracy and quality are not easy to guarantee, the welding bracket 2 is easy to deform greatly under stress, a high stress area is generated, and the nut tube bracket 2 is easy to crack due to fatigue. Therefore, the connecting strength between the nut pipe and the nut pipe bracket and between the nut pipe and the longitudinal beam is mainly increased, so that the stress on the cross beam, the longitudinal beam and the nut pipe bracket is more uniformly dispersed, the rigidity and strength requirements of the auxiliary frame mounting point on the vehicle body are met, and the risk of plastic deformation and fatigue cracking at the mounting point is reduced.
Examples
A car subframe car body mounting point reinforcing structure comprises a cross beam 4, a longitudinal beam 1, a nut tube bracket 2 fixed on the longitudinal beam 1 and a nut tube 3 fixed on the nut tube bracket 2, wherein the longitudinal beam 1 is provided with a through hole for the nut tube 3 to pass through, the nut tube bracket 2 is fixed in a longitudinal beam 5 by welding, the nut tube 3 is fixed on the nut tube bracket 2 by welding, the bottom of the nut tube 3 is welded on the cross beam 4, and the middle part of the nut tube 3 is also welded and fixed with the longitudinal beam 1; nut pipe 3 includes pipe shaft and base, base and 4 fixed connection of crossbeam, and the pipe shaft middle part is connected with longeron 1, and upper portion is connected with nut pipe support 2.
As shown in fig. 4, the nut tube bracket 2 includes a bracket main body and a flange structure provided on the bracket main body, the nut tube 3 is fixedly connected with the bracket main body, and the flange structure is fixedly connected with the longitudinal beam 1; the flanging structures comprise a first flanging structure 61 arranged at the bottom of the support main body, second flanging structures 62 arranged at two sides of the support main body and a third flanging structure 63 arranged at the top of the support main body, the third flanging structure 63 and the first flanging structure 61 face opposite directions, and the third flanging structure 63 is fixedly connected with the longitudinal beam 1 through side wings 631 arranged at two ends of the third flanging structure 63; the first flanging structure 61, the second flanging structure 62 and the third flanging structure 63 are used for providing six welding surfaces to be welded and fixed with the longitudinal beam 5. The first flanging structure 61 is a split flanging structure arranged at two sides of the nut pipe 3, and a first gap 7 is arranged between the split flanging structure and the side wall of the nut pipe 3; the first notch 7 exposes the connecting portion between the longitudinal beam 1 and the nut tube 3, so that the middle portions of the longitudinal beam 1 and the nut tube 3 can be welded and reinforced by welding, that is, the nut tube 3 is fixedly connected with the through hole on the longitudinal beam 1. The nut pipe support 2 is provided with a second notch 8 for separating a second flanging structure 62 and a third flanging structure 63, and the second notch 8 is designed to be not easy to crack when the nut pipe support 2 is manufactured by a stamping process, so that the nut pipe support is easier to realize in the process. The bracket main body is provided with a cambered surface structure matched with the nut tube 3, and two side surfaces of the relative position of the nut tube 3 are respectively fixed on the cambered surface structure through welding seams. In this embodiment, the nut tube 3 and the bracket main body, the nut tube 3 and the longitudinal beam 1, and the nut tube 3 and the cross beam 4 are fixedly connected through a welding process.
The installation process of this embodiment is: the nut pipe bracket 2 is welded with the two side surfaces and the lower surface of the longitudinal beam 1 in advance through six turned edges to form a small assembly of the nut pipe bracket and the longitudinal beam; the nut pipe 3 is welded on the bolt mounting point of the cross beam 4 in advance, as shown in fig. 6, then the nut pipe 3 penetrates through the round hole on the lower bottom surface of the longitudinal beam 1 and is welded on the lower bottom surface of the longitudinal beam 1, and therefore the lower part of the nut pipe 3 is ensured to be welded and fixed with the cross beam 4 and the longitudinal beam 1, as shown in fig. 5; after the nut pipe 3 penetrates through the longitudinal beam 1, the upper part of the nut pipe is half-wrapped by the cambered surface of the nut pipe bracket 2, and then the nut pipe and the nut pipe bracket welding seam 5 at the two sides are welded with the nut pipe bracket 2, so that the welding length of the nut pipe 3 and the nut pipe bracket 2 is greatly increased, the welding quality is favorably ensured, and the upper part of the nut pipe is fixed, as shown in fig. 4; finally, the subframe is fixed to the vehicle body by bolts screwed into the nut pipes 2.
In the structure of the embodiment, as the nut pipe bracket 2 is half-wrapped by the nut pipe 3, and two welding seams are welded on two sides, the effective welding length is increased, the welding quality is easy to guarantee, and the cracking risk of the nut pipe bracket 2 is reduced; because the upper surface of the nut pipe bracket 2 is provided with the flanging, and the two sides and the lower surface are provided with the welding flanging, the rigidity of the nut pipe bracket can be improved; except that the upper end of the nut pipe 3 is welded with the nut pipe bracket 2 in a half-wrapped mode, the lower end of the nut pipe is welded with the longitudinal beam 1 and the cross beam 4, so that the rigidity and the strength of a vehicle body mounting point of the auxiliary frame are greatly improved; the nut tube bracket 2 is integrally formed
The structure is connected with the longitudinal beam through the three welding surfaces, so that the stress is more uniformly dispersed, and the rigidity of the nut pipe support is improved.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. A car auxiliary frame car body mounting point reinforcing structure comprises a cross beam (4), a longitudinal beam (1), a nut pipe support (2) fixed on the longitudinal beam (1) and a nut pipe (3) fixed on the nut pipe support (2), wherein a through hole for the nut pipe (3) to pass through is formed in the longitudinal beam (1), the nut pipe support (2) comprises a support main body and a flanging structure arranged on the support main body, the nut pipe (3) is fixedly connected with the support main body, the flanging structure is fixedly connected with the longitudinal beam (1),
the novel flanging structure is characterized in that the flanging structure comprises a first flanging structure (61) arranged at the bottom of the support main body, second flanging structures (62) arranged at two sides of the support main body and a third flanging structure (63) arranged at the top of the support main body, wherein the orientations of the third flanging structures (63) and the first flanging structures (61) are opposite, and the third flanging structures (63) are fixedly connected with the longitudinal beam (1) through side wings (631) arranged at two ends of the third flanging structures (63).
2. The auxiliary frame body installation point reinforcing structure for the automobile is characterized in that the first flanging structure (61) is a split flanging structure which is arranged on two sides of the nut pipe (3), and a first gap (7) is formed between the split flanging structure and the side wall of the nut pipe (3).
3. The auxiliary frame body installation point reinforcing structure for the automobile is characterized in that the nut tube (3) is fixedly connected with a through hole in the longitudinal beam (1).
4. The auxiliary frame body installation point reinforcing structure for the automobile as claimed in claim 1, wherein the nut tube bracket (2) is provided with a second gap (8) for separating the second flanging structure (62) and the third flanging structure (63).
5. The auxiliary frame body installation point reinforcing structure for the automobile as claimed in claim 1, wherein the bracket main body is provided with a cambered surface structure matched with the nut tube (3).
6. The auxiliary frame body installation point reinforcing structure for the automobile is characterized in that two opposite side surfaces of the nut tube (3) are respectively fixed on the cambered surface structures through welding seams.
7. The auxiliary frame body installation point reinforcing structure for the automobile is characterized in that the nut tube (3) comprises a tube body and a base, and the base is fixedly connected with the cross beam (4).
8. The auxiliary frame body installation point reinforcing structure for the automobile frame is characterized in that the nut tube (3) is fixedly connected with the bracket main body, the nut tube (3) is fixedly connected with the longitudinal beam (1), and the nut tube (3) is fixedly connected with the cross beam (4) through a welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090495.6U CN210634636U (en) | 2019-07-12 | 2019-07-12 | Automobile auxiliary frame automobile body mounting point reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921090495.6U CN210634636U (en) | 2019-07-12 | 2019-07-12 | Automobile auxiliary frame automobile body mounting point reinforcing structure |
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| Publication Number | Publication Date |
|---|---|
| CN210634636U true CN210634636U (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921090495.6U Active CN210634636U (en) | 2019-07-12 | 2019-07-12 | Automobile auxiliary frame automobile body mounting point reinforcing structure |
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| CN (1) | CN210634636U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247097A (en) * | 2021-06-24 | 2021-08-13 | 吉利汽车研究院（宁波）有限公司 | Automobile body mounting point additional strengthening and car suspension support |
-
2019
- 2019-07-12 CN CN201921090495.6U patent/CN210634636U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113247097A (en) * | 2021-06-24 | 2021-08-13 | 吉利汽车研究院（宁波）有限公司 | Automobile body mounting point additional strengthening and car suspension support |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200730 Granted publication date: 20200529 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230730 Granted publication date: 20200529 |