CN210478818U - Rear auxiliary frame mounting structure and vehicle - Google Patents
Rear auxiliary frame mounting structure and vehicle Download PDFInfo
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- CN210478818U CN210478818U CN201921434406.5U CN201921434406U CN210478818U CN 210478818 U CN210478818 U CN 210478818U CN 201921434406 U CN201921434406 U CN 201921434406U CN 210478818 U CN210478818 U CN 210478818U
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Abstract
The utility model discloses a rear auxiliary frame mounting structure, which comprises a beam upper plate and a beam lower plate, wherein the beam upper plate and the beam lower plate are fixedly connected in a buckling way and a cavity is formed between the beam upper plate and the beam lower plate; the mounting bracket is fixed on the second connecting piece, a cavity formed between the mounting bracket and the second connecting piece is used for mounting the nut pipe, the top end of the nut pipe penetrates through the mounting bracket, the middle part of the nut pipe is fixed with the mounting bracket, the bottom end of the nut pipe is abutted against the second connecting piece, a first through hole corresponding to the position of the nut pipe is formed in the second connecting piece, and the nut pipe is used as a mounting point of a mounting bolt of a rear auxiliary frame. The vehicle comprises a rear auxiliary frame arranged below the vehicle body, and the rear auxiliary frame comprises the rear auxiliary frame mounting structure. The mounting point structure can improve the structural strength, the rigidity and the mounting surface precision of the mounting point, and effectively improves load transfer.
Description
Technical Field
The invention relates to an automobile body part, in particular to a rear auxiliary frame mounting structure and a vehicle.
Background
The automobile rear floor framework provides support for the rear auxiliary frame assembly, and the rear auxiliary frame assembly is connected to the automobile body rear floor framework through bolts. Various working conditions on the road surface are directly transmitted into the rear auxiliary frame assembly through the wheels, so that the load bearing capacity of the joint of the rear auxiliary frame assembly and the rear floor framework of the vehicle body is large, complex and variable, the requirements on the strength, rigidity and mounting surface precision of the mounting point on the rear floor framework are high, and the stress of the rear auxiliary frame is effectively transmitted to the vehicle body by considering the local structure.
At present, the mounting point of the rear part of the auxiliary frame of a plurality of vehicle types on the market is arranged inside a rear floor longitudinal beam, and the following problems exist: the size of the section of the longitudinal beam of the rear floor is reduced due to the influence of arrangement, the size of the nut pipe reinforcement is reduced accordingly, and the strength and the rigidity are influenced; and secondly, the bottom of the nut pipe is connected with the reinforcing piece through two weld joints, and the two weld joints are mounting surfaces, so that the influence of welding heat is protected, the mounting surfaces are uneven, and the assembly of the auxiliary frame is influenced.
Disclosure of Invention
The utility model aims at providing a back sub vehicle frame mounting structure and vehicle, it can improve mounting point structural strength, rigidity and installation face precision to effectively promote the load transmission.
The utility model discloses a rear auxiliary frame mounting structure, including crossbeam upper plate and crossbeam hypoplastron, crossbeam upper plate and crossbeam hypoplastron lock fixed connection and form the cavity between crossbeam upper plate and the crossbeam hypoplastron, crossbeam upper plate tip has the first connecting piece of being connected with the side wall, crossbeam hypoplastron tip has the second connecting piece of being connected with the rear floor longeron; the mounting bracket is fixed on the second connecting piece, a cavity formed between the mounting bracket and the second connecting piece is used for mounting a nut pipe, the top end of the nut pipe penetrates through the mounting bracket and the middle part of the nut pipe to be fixed with the mounting bracket, the bottom end of the nut pipe is abutted against the second connecting piece, a first through hole corresponding to the position of the nut pipe is formed in the second connecting piece, and the nut pipe serves as a mounting point of a rear auxiliary frame mounting bolt.
Furthermore, the first connecting piece is in lap joint with the upper plate of the cross beam through a first connecting edge and is in lap joint with the side wall through a second connecting edge; the second connecting piece is in lap joint with the lower plate of the cross beam through a third connecting edge and in lap joint with the longitudinal beam of the rear floor through a fourth connecting edge.
Further, the mounting bracket comprises a top plate and an inclined plate extending downwards along the edge of the top plate, the bottom of the inclined plate is in lap joint with the second connecting piece through a fifth connecting edge, a mounting hole for allowing the top end of the nut pipe to penetrate is formed in the top plate, and the mounting hole is welded and fixed with the middle of the nut pipe.
Furthermore, the top plate is provided with a sixth connecting edge at the edge close to the rear floor longitudinal beam, and the sixth connecting edge is used for being welded and fixed with the rear floor longitudinal beam.
Further, the second connecting piece bottom upper surface is equipped with the reinforcing plate on the position that corresponds with the nut pipe, nut pipe bottom supports and leans on in the reinforcing plate upper surface, is equipped with the coaxial second through-hole of nut pipe on this reinforcing plate.
The utility model provides a vehicle, is including locating the back sub vehicle frame of automobile body below, back sub vehicle frame includes foretell back sub vehicle frame mounting structure.
Compared with the prior art, the utility model following beneficial effect has.
1. The utility model discloses a first connecting piece of being connected with the side wall at the end fixing of crossbeam upper plate, the second connecting piece of being connected with back floor longeron at crossbeam hypoplastron end fixing, second connecting piece upper portion is fixed with the installing support that is used for installing the nut pipe, arranges the mounting point that is about to back sub vehicle frame in the second connecting piece between crossbeam hypoplastron and back floor longeron, compares in back floor longeron inside, and the second connecting piece has bigger cross-section, and through the installing support at the peripheral triangular spatial structure that forms of nut pipe, has effectively promoted mounting point intensity and rigidity.
2. The utility model discloses nut pipe top and installing support fixed connection, the bottom is supported and is leaned on in the reinforcing plate upper surface, because the bottom need not adopt two to protect to weld the connection, has improved the plane degree of installation face, has increased the assembly precision.
3. The utility model discloses first connecting piece and second connecting piece are used for connecting crossbeam upper plate and side wall and crossbeam hypoplastron and back floor longeron respectively for the transmission to crossbeam upper plate, crossbeam hypoplastron, side wall and back floor longeron respectively can be passed through to the load of erection point department through first connecting piece and second connecting piece, and load transmission route is reasonable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the load transfer path at the installation point of the present invention;
FIG. 3 is an enlarged partial schematic view of area A of FIG. 2;
fig. 4 is a schematic view of the mounting bracket of the present invention assembled with a second connector;
FIG. 5 is a cross-sectional view B-B of FIG. 2;
FIG. 6 is a schematic view of the nut tube and the mounting bracket of the present invention;
fig. 7 is a schematic diagram of the arrangement position of the reinforcing plate of the present invention;
figure 8 is an isometric view of the lower plate of the cross beam of the present invention;
fig. 9 is a schematic view of the cooperation between the upper plate of the cross beam and the first connecting member of the present invention.
In the figure, 1-beam upper plate, 11-first bridging surface, 2-beam lower plate, 21-second bridging surface, 3-first connecting piece, 31-first connecting edge, 32-second connecting edge, 4-second connecting piece, 41-third connecting edge, 42-fourth connecting edge, 43-first through hole, 44-mounting bracket fixing surface, 45-reinforcing plate fixing surface, 5-mounting bracket, 51-mounting hole, 52-top plate, 53-sloping plate, 54-fifth connecting edge, 55-sixth connecting edge, 56-seventh connecting edge, 57-eighth connecting edge, 6-nut pipe, 7-reinforcing plate, 71-second through hole, 8-rear floor longitudinal beam.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 9, the rear subframe mounting structure includes a beam upper plate 1 and a beam lower plate 2, the beam upper plate 1 and the beam lower plate 2 are fastened, welded and fixed, and a cavity is formed between the beam upper plate 1 and the beam lower plate 2. The left end and the right end of the beam upper plate 1 are provided with first overlapping surfaces 11 used for being connected with first connecting pieces 3, one ends, close to the beam upper plate 1, of the first connecting pieces 3 are provided with first connecting edges 31 welded and fixed with the first overlapping surfaces 11, and the other ends of the first connecting pieces are in lap joint with side walls through second connecting edges 32. The left end and the right end of the cross beam lower plate 2 are provided with second lapping surfaces 21 used for being connected with a second connecting piece 4, one end, close to the cross beam lower plate 2, of the second connecting piece 4 is provided with a third connecting edge 41 welded and fixed with the second lapping surfaces 21, and the other end of the second connecting piece is lapped with the rear floor longitudinal beam 8 through a fourth connecting edge 42.
The first connecting piece 3 and the second connecting piece 4 respectively extend smoothly with the end parts of the beam upper plate 1 and the beam lower plate 2, and the cross sections of the beam upper plate 1, the beam lower plate 2, the first connecting piece 3 and the second connecting piece 4 are U-shaped.
Referring to fig. 4, 5 and 6, the second connecting member 4 is fixed with a mounting bracket 5, the mounting bracket 5 includes a top plate 52 and an inclined plate 53 extending downward along the edge of the top plate 52, the bottom of the inclined plate 53 is connected with the bottom of the second connecting member 4 through a fifth connecting edge 54, a mounting hole 51 for allowing the top end of the nut tube 6 to pass through is formed in the top plate 52, and the middle of the nut tube 6 is connected with the mounting hole 51 by two weld joints, so that the two are fixedly connected. The bottom end of the nut pipe 6 is abutted against the second connecting piece 4, and the second connecting piece 4 is provided with a first through hole 43 corresponding to the nut pipe 6. The nut pipe 6 is used as a mounting point of a rear auxiliary frame mounting bolt.
In order to improve the connection stability of the mounting bracket 5, the front and rear edges of the top plate 52 are welded to the front and rear side walls of the second connecting member 4 through the seventh connecting edge 56, and the front and rear edges of the inclined plate 53 are welded to the front and rear side walls of the second connecting member 4 through the eighth connecting edge 57.
The nut pipe 6 is adopted as a mounting point of a mounting bolt of the rear auxiliary frame, the nut pipe 6 is fixed in a mounting hole 51 of the mounting bracket 5 through welding, the mounting bracket 5 is fixed on the upper portion of the second connecting piece 4, and the mounting point of the rear auxiliary frame is arranged on the second connecting piece 4 between the cross beam lower plate 2 and the rear floor longitudinal beam 8. Compared with the interior of the rear floor longitudinal beam 8, the second connecting piece 4 has a larger cross section, and a triangular space structure is formed at the periphery of the nut tube 6 through the mounting bracket 5, so that the strength and the rigidity of a mounting point are effectively improved.
The top plate 52 is provided with a sixth connecting edge 55 at the edge close to the rear floor longitudinal beam 8, and the sixth connecting edge 55 is used for being welded and fixed with the rear floor longitudinal beam 8.
In order to further improve the strength of the mounting point and avoid the cracking of the mounting point, a reinforcing plate 7 is arranged on the position, corresponding to the nut pipe 6, of the upper surface of the bottom of the second connecting piece 4, the bottom end of the nut pipe 6 abuts against the upper surface of the reinforcing plate 7, and a second through hole 71, coaxial with the nut pipe 6, is arranged on the reinforcing plate 7.
During specific assembly, firstly, the mounting bracket is assembled, the second through hole 71 of the reinforcing plate 7 is aligned with the first through hole 43 on the second connecting piece 4, the nut tube 6 is placed on the upper surface of the reinforcing plate 7 through welding fixation, the threaded hole in the middle of the nut tube 6 is coaxially arranged with the first through hole 43 and the second through hole 71, the mounting bracket 5 is placed on the second connecting piece 4, the mounting hole 51 on the top plate 52 of the mounting bracket is fixed with the upper part of the nut tube 6 through two welding fixations, the fifth connecting edge 54 at the bottom of the inclined plate 53 is fixed with the mounting bracket fixing surface 44 at the bottom of the second connecting piece 4 through welding, the seventh connecting edge 56 and the eighth connecting edge 57 at the front edge and the rear edge of the mounting bracket 5 are fixed with the mounting bracket fixing surface 44 at the front side wall and the rear side wall of the second connecting piece 4 through welding fixation, and the assembly of the.
Then, assembling the beam assembly, namely overlapping the third connecting edge 41 of the second connecting piece 4 with the nut pipe 6 on the second overlapping surface 21 at the end part of the lower beam plate 2, and fixing the third connecting edge by welding; overlapping the first connecting edge 31 of the first connecting piece 3 on the first overlapping surface 11 of the end part of the beam upper plate 1, and fixing by welding; and then the beam upper plate 1 and the beam lower plate 2 are buckled, welded and fixed.
And finally, the beam assembly is matched and connected with the rear floor longitudinal beam 8 and the side wall, the second connecting edge 32 on the first connecting piece 3 is welded and fixed with the side wall, the fourth connecting edge 42 on the second connecting piece 4 and the sixth connecting edge 55 on the mounting bracket 5 are welded and fixed with the rear floor longitudinal beam 8, and the assembly is completed.
The utility model provides a vehicle, is including locating the back sub vehicle frame of automobile body below, back sub vehicle frame includes foretell back sub vehicle frame mounting structure.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a back sub vehicle frame mounting structure, includes crossbeam upper plate (1) and crossbeam hypoplastron (2), form cavity, its characterized in that between crossbeam upper plate and crossbeam hypoplastron lock fixed connection and crossbeam upper plate and the crossbeam hypoplastron: the end part of the beam upper plate (1) is provided with a first connecting piece (3) connected with the side wall, and the end part of the beam lower plate (2) is provided with a second connecting piece (4) connected with the rear floor longitudinal beam (8);
be fixed with installing support (5) on second connecting piece (4), the cavity that forms between installing support and the second connecting piece is used for installing the nut pipe, nut pipe (6) top is passed installing support and middle part and is fixed with the installing support, and bottom butt second connecting piece, be equipped with on the second connecting piece with nut pipe position corresponding first through-hole (43), the nut pipe is as the mounting point of back sub vehicle frame construction bolt.
2. The rear subframe mounting structure according to claim 1, wherein: the first connecting piece (3) is in lap joint with the beam upper plate (1) through a first connecting edge (31) and is in lap joint with the side wall through a second connecting edge (32);
and the second connecting piece (4) is in lap joint with the cross beam lower plate (2) through a third connecting edge (41) and is in lap joint with the rear floor longitudinal beam (8) through a fourth connecting edge (42).
3. The rear subframe mounting structure according to claim 1 or 2, wherein: the mounting bracket (5) comprises a top plate (52) and an inclined plate (53) extending downwards along the edge of the top plate, the bottom of the inclined plate is in lap joint with the second connecting piece (4) through a fifth connecting edge (54), a mounting hole (51) for allowing the top end of the nut pipe (6) to penetrate is formed in the top plate, and the mounting hole is welded and fixed with the middle of the nut pipe.
4. The rear subframe mounting structure of claim 3, wherein: and a sixth connecting edge (55) is arranged at the edge of the top plate (52) close to the rear floor longitudinal beam (8), and the sixth connecting edge is used for being welded and fixed with the rear floor longitudinal beam.
5. The rear subframe mounting structure according to claim 1 or 2, wherein: the upper surface of the bottom of the second connecting piece (4) is provided with a reinforcing plate (7) at a position corresponding to the nut pipe (6), the bottom end of the nut pipe abuts against the upper surface of the reinforcing plate, and the reinforcing plate is provided with a second through hole (71) coaxial with the nut pipe.
6. A vehicle, characterized in that: the rear sub frame includes a rear sub frame provided under a vehicle body, and the rear sub frame includes the rear sub frame mounting structure according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434406.5U CN210478818U (en) | 2019-08-31 | 2019-08-31 | Rear auxiliary frame mounting structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921434406.5U CN210478818U (en) | 2019-08-31 | 2019-08-31 | Rear auxiliary frame mounting structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210478818U true CN210478818U (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921434406.5U Active CN210478818U (en) | 2019-08-31 | 2019-08-31 | Rear auxiliary frame mounting structure and vehicle |
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| CN (1) | CN210478818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661155A (en) * | 2020-05-22 | 2020-09-15 | 浙江零跑科技有限公司 | Electric vehicle rear auxiliary frame positioning and mounting structure |
-
2019
- 2019-08-31 CN CN201921434406.5U patent/CN210478818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111661155A (en) * | 2020-05-22 | 2020-09-15 | 浙江零跑科技有限公司 | Electric vehicle rear auxiliary frame positioning and mounting structure |
| CN111661155B (en) * | 2020-05-22 | 2021-11-09 | 浙江零跑科技股份有限公司 | Electric vehicle rear auxiliary frame positioning and mounting structure |
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