CN212685748U - Rear longitudinal beam sub-assembly - Google Patents
Rear longitudinal beam sub-assembly Download PDFInfo
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- CN212685748U CN212685748U CN202021542250.5U CN202021542250U CN212685748U CN 212685748 U CN212685748 U CN 212685748U CN 202021542250 U CN202021542250 U CN 202021542250U CN 212685748 U CN212685748 U CN 212685748U
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Abstract
The utility model relates to a back longeron subassembly, including supporting the main part, fixing first enhancement subassembly and the second enhancement subassembly on supporting the main part different positions, the support main part be the integrative piece of metal sheet stamping forming, the one end of supporting the main part is through the vertical upwards, the outside continuous longitudinal beam connecting portion of rolling over formation of level, the both sides of supporting the main part are the vertical connection riser that turns over a formation symmetry of turning over upward, the tip that each connection riser corresponds with the longitudinal beam connecting portion all is equipped with the longeron fixed body of rolling over the formation of turning over outward, the horizontal bottom of supporting the main part is fixed baseplate, be fixed with welding nut A and welding nut B of vertical setting on baseplate, be equipped with on baseplate and correspond the matching through-hole respectively with welding nut A and welding nut B; the utility model discloses rational in infrastructure, simple to operate, bearing strength is big.
Description
Technical Field
The utility model relates to a technical field of automobile longitudinal beam, in particular to back longeron subassembly.
Background
In the production and manufacture of automobiles, a rear longitudinal beam assembly is an indispensable component in a vehicle body framework, has a large influence on the overall performance of a vehicle body, and is the most important structural member of the rear floor framework in terms of local functions of the rear longitudinal beam assembly, and mainly plays a role in supporting a rear floor and bearing a rear torsion beam of a chassis, wherein the rear torsion beam is fixed on the rear longitudinal beam in the traditional structure that a rear torsion beam mounting plate is welded at the bottom of the rear longitudinal beam to improve the structural strength of the rear longitudinal beam, and the rear torsion beam mounting plate and the rear longitudinal beam form an open U-shaped bracket; when the vehicle is used for NVH performance development, the dynamic stiffness, the Vibration Transfer Function (VTF) and the Noise Transfer Function (NTF) of the mounting point of the rear torsion beam are important control targets of the NVH level of the vehicle body, and the supporting structure of the mounting bracket of the torsion beam is optimized through CAE analysis, so that the dynamic stiffness, the VTF and the NTF level of the mounting point are effectively improved. However, what torsion beam mounting point support generally adopted behind the car among the prior art is U type supporting structure, and the inboard increase of U type support supports the reinforcement, and the reinforcement design is inboard at the support, and its structural dynamic rigidity is generally weak, leads to back torsion beam to drop because of fatigue endurance fracture easily, has very serious potential safety hazard, and inboard reinforcement structure receives the torsion beam installation space restriction, and it is limited to optimize the space. Therefore, it is highly desirable to improve and optimize the connection structure between the rear torsion beam and the rear side member in the related art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a back longeron subassembly.
The specific contents are as follows: back longeron subassembly is including supporting the main part, fixing first reinforcement component and the second reinforcement component on supporting the different positions of main part, characterized by:
the supporting main part is an integrated part formed by stamping a metal plate, one end of the supporting main part is vertically and horizontally turned outwards to form a longitudinal beam connecting part, two sides of the supporting main part are vertically and upwards turned to form symmetrical connecting vertical plates, the end part of each connecting vertical plate corresponding to the longitudinal beam connecting part is provided with a longitudinal beam fixing body formed by turning outwards, the horizontal bottom of the supporting main part is a fixing bottom plate, the upper surface of the fixing bottom plate is fixedly provided with a welding nut A and a welding nut B which are vertically arranged, and the fixing bottom plate is provided with through holes which are respectively matched with the welding nut A and the welding nut B;
the first reinforcing component comprises a main reinforcing plate and a sub reinforcing plate fixed on the main reinforcing plate, wherein the sub reinforcing plate comprises a sub reinforcing plate A and a sub reinforcing plate B;
the main reinforcing plate is an integrated piece formed by stamping a metal plate, connecting flanges formed by upward turning are arranged on two sides of the main reinforcing plate, a longitudinal beam connecting body formed by upward turning is arranged at one end of the main reinforcing plate, the main reinforcing plate is fixed on a fixed base plate for supporting the main part, the connecting flanges on two sides of the main reinforcing plate are correspondingly fixed on the inner side surface of a connecting vertical plate, the longitudinal beam connecting body is correspondingly flush with a longitudinal beam fixing body at the end part of the connecting vertical plate, an arc-shaped convex reinforcing part A formed by stamping is also arranged on the main reinforcing plate, the arc-shaped convex reinforcing part A, the connecting flanges on the main reinforcing plate and the longitudinal beam connecting body are connected into a whole, a sub reinforcing plate A smoothly attached to the surface of the arc-shaped convex reinforcing part A is also fixed on the upper surface of the arc-shaped convex reinforcing part A, and the sub reinforcing plate A vertically and upwards penetrate through the arc-shaped, the main reinforcing plate is also provided with an arc-shaped convex reinforcing part B formed by stamping, the arc-shaped convex reinforcing part B is connected with the connecting flanging at the other side of the main reinforcing plate to form a whole, the upper surface of the arc-shaped convex reinforcing part B is also fixedly provided with a sub reinforcing plate B which is smoothly attached to the surface of the arc-shaped convex reinforcing part B, the welding nut B vertically and upwards penetrates through the arc-shaped convex reinforcing part B and the sub reinforcing plate B and is fixed with the arc-shaped convex reinforcing part B and the sub reinforcing plate B, the upper surface of the main reinforcing plate is fixedly provided with a vertically arranged welding nut C, and the fixed bottom plate and the main reinforcing plate are respectively provided with a through hole correspondingly matched with;
the second strengthen the subassembly include vice reinforcing plate and fix the welding nut butyl on vice reinforcing plate, vice reinforcing plate is fixed on the PMKD who supports the main part, one side of vice reinforcing plate is for turning over the fixed turn-ups that turns over a formation upwards, should fix the turn-ups and correspond to fix on the interior survey face of longeron connecting portion on supporting the main part, all be equipped with on support main part and the vice reinforcing plate and correspond the through-hole that matches with welding nut butyl.
Preferably, the edges of the connecting vertical plates and the edges of the fixed bottom plate are provided with reinforcing flanges which are formed by outwards turning.
Preferably, the corners of the reinforcing flanges are provided with deformation notches.
Preferably, the folded part of the longitudinal beam connector is provided with a reinforcing rib formed by inward stamping and sinking.
Preferably, a positioning wing plate is further fixed on the connecting vertical plate.
Preferably, the main reinforcing plate and the auxiliary reinforcing plate are provided with liquid leakage holes which are correspondingly communicated with the supporting main part.
Preferably, the longitudinal beam connecting part is further provided with a positioning mounting hole.
The utility model has the advantages of: the utility model relates to a rear longitudinal beam subassembly, namely a main bearing connection structure between a torsion beam and a rear longitudinal beam assembly, which comprises a support main part, a first reinforcing component and a second reinforcing component which are fixed on different positions of the support main part, wherein the first reinforcing component comprises a main reinforcing plate and a sub reinforcing plate which is fixed on the main reinforcing plate, the second reinforcing component comprises an auxiliary reinforcing plate and a welding nut which is fixed on the auxiliary reinforcing plate, the support main part of the utility model is provided with a longitudinal beam connection part which is connected with the rear longitudinal beam assembly, the longitudinal beam connection part is formed by continuous folding and stamping to increase the bearing strength, as the main bearing part adopts stamping forming, unnecessary connection seams are reduced as far as possible under the condition of ensuring the strength, the strength of the whole structure is increased to a certain extent, and the main reinforcing plate is fixed on the support main part, a welded nut for bearing weight of connection all is fixed mutually with main reinforcing plate, increases welded nut's bearing strength, increases the local bearing strength that lifting surface area reduces the support main part simultaneously, and is equipped with integrated into one piece's longeron connector on the main reinforcing plate, it is used for and back longeron assembly fixed connection, and still be equipped with the strengthening rib on the roof beam connection longitudinal joint body, increase the anti deformability of main reinforcing plate, all be equipped with protruding rib and the sub-reinforcing plate of arc that the punching press formed with the welded nut junction on main reinforcing plate, increase from many aspects the utility model discloses a bearing capacity and anti deformability guarantee overall structure's fastness and stability.
Drawings
FIG. 1 is a first perspective view of a rear rail subassembly;
FIG. 2 is a schematic perspective view of a rear side rail subassembly;
FIG. 3 is a perspective view of the support member;
FIG. 4 is a perspective view of the second reinforcement member secured to the support member;
FIG. 5 is a perspective view of a first reinforcement member;
FIG. 6 is a first perspective view of the main stiffener;
FIG. 7 is a schematic perspective view of a second main reinforcing plate;
FIG. 8 is a schematic perspective view of a sub-reinforcing plate A;
FIG. 9 is a schematic perspective view of a sub-reinforcing plate B;
FIG. 10 is a perspective view of a second reinforcement member;
fig. 11 is a schematic perspective view of the rear longitudinal beam assembly according to the present invention;
in the figure: 11. the reinforcing plate comprises a fixed bottom plate, 12 longitudinal beam connecting parts, 13 longitudinal beam fixing bodies, 14 connecting vertical plates, 15 deformation notches, 16 reinforcing flanges, 17 welding nuts B, 18 welding nuts A, 19 through holes corresponding to the welding nuts C on the fixed bottom plate, 20 through holes corresponding to the welding nuts D on the fixed bottom plate, 21 liquid leakage holes communicated with an auxiliary reinforcing plate on the fixed bottom plate, 22 liquid leakage holes communicated with the main reinforcing plate on the fixed bottom plate, 23 positioning mounting holes, 24 positioning wing plates, 31 main reinforcing plates, 32 connecting flanges, 33 longitudinal beam connecting bodies, 34 reinforcing ribs, 35 arc-shaped protrusion reinforcing parts A and 351 through the through holes of the welding nuts A on the arc-shaped protrusion reinforcing parts A, 36 through the through holes of the welding nuts A on the auxiliary reinforcing plates A and 361, 37 through holes of the arc-shaped protrusion reinforcing parts B and 371 through holes through the welding nuts B on the arc-shaped protrusion reinforcing parts B, 38. The auxiliary reinforcing plates B and 381, through holes penetrating through the welding nuts B on the auxiliary reinforcing plate B, liquid leakage holes 39 on the main reinforcing plate, liquid leakage holes 40 on the welding nuts C and 41 on the main reinforcing plate, through holes corresponding to the welding nuts C on the main reinforcing plate, 51 auxiliary reinforcing plates 52, liquid leakage holes 53 on the auxiliary reinforcing plates, nut T and 54, fixing flanges and 60 rear longitudinal beam assemblies.
Detailed Description
In a first embodiment, referring to fig. 1-11, a rear rail sub-assembly includes a supporting main member, a first reinforcement member and a second reinforcement member secured to the supporting main member at different locations; the utility model discloses a back longeron subassembly is partly in the back longeron assembly, and it is used for fixed mounting torsion beam, is torsion beam and the main connection structure that bears between the back longeron assembly.
The supporting main part is an integrated part formed by stamping a metal plate, one end of the supporting main part is vertically and horizontally turned outwards to form a longitudinal beam connecting part, two sides of the supporting main part are vertically and upwards turned to form symmetrical connecting vertical plates, the end part of each connecting vertical plate corresponding to the longitudinal beam connecting part is provided with a longitudinal beam fixing body formed by turning outwards, the horizontal bottom of the supporting main part is a fixing bottom plate, the upper surface of the fixing bottom plate is fixedly provided with a welding nut A and a welding nut B which are vertically arranged, and the fixing bottom plate is provided with through holes which are respectively matched with the welding nut A and the welding nut B;
the first reinforcing component comprises a main reinforcing plate and a sub reinforcing plate fixed on the main reinforcing plate, wherein the sub reinforcing plate comprises a sub reinforcing plate A and a sub reinforcing plate B;
the main reinforcing plate is an integrated piece formed by stamping a metal plate, connecting flanges formed by upward turning are arranged on two sides of the main reinforcing plate, a longitudinal beam connecting body formed by upward turning is arranged at one end of the main reinforcing plate, the main reinforcing plate is fixed on a fixed base plate for supporting the main part, the connecting flanges on two sides of the main reinforcing plate are correspondingly fixed on the inner side surface of a connecting vertical plate, the longitudinal beam connecting body is correspondingly flush with a longitudinal beam fixing body at the end part of the connecting vertical plate, an arc-shaped convex reinforcing part A formed by stamping is also arranged on the main reinforcing plate, the arc-shaped convex reinforcing part A, the connecting flanges on the main reinforcing plate and the longitudinal beam connecting body are connected into a whole, a sub reinforcing plate A smoothly attached to the surface of the arc-shaped convex reinforcing part A is also fixed on the upper surface of the arc-shaped convex reinforcing part A, and the sub reinforcing plate A vertically and upwards penetrate through the arc-shaped, the main reinforcing plate is also provided with an arc-shaped convex reinforcing part B formed by stamping, the arc-shaped convex reinforcing part B is connected with the connecting flanging at the other side of the main reinforcing plate to form a whole, the upper surface of the arc-shaped convex reinforcing part B is also fixedly provided with a sub reinforcing plate B which is smoothly attached to the surface of the arc-shaped convex reinforcing part B, the welding nut B vertically and upwards penetrates through the arc-shaped convex reinforcing part B and the sub reinforcing plate B and is fixed with the arc-shaped convex reinforcing part B and the sub reinforcing plate B, the upper surface of the main reinforcing plate is fixedly provided with a vertically arranged welding nut C, and the fixed bottom plate and the main reinforcing plate are respectively provided with a through hole correspondingly matched with;
the second strengthen the subassembly include vice reinforcing plate and fix the welding nut butyl on vice reinforcing plate, vice reinforcing plate is fixed on the PMKD who supports the main part, one side of vice reinforcing plate is for turning over the fixed turn-ups that turns over a formation upwards, should fix the turn-ups and correspond to fix on the interior survey face of longeron connecting portion on supporting the main part, all be equipped with on support main part and the vice reinforcing plate and correspond the through-hole that matches with welding nut butyl.
The edges of the connecting vertical plates and the edges of the fixed bottom plate are provided with reinforced flanges which are formed by outward turning. The integral deformation resistance of the supporting main part is increased, and the bearing strength of the supporting main part is increased.
The corners of the reinforced flanging are provided with deformation notches, so that the influence on the use strength caused by material cracking due to stress concentration in the flanging process is prevented.
The turnover part of the longitudinal beam connector is provided with a reinforcing rib formed by inward stamping and sinking. The reinforcing ribs are used for increasing the bearing strength and the deformation resistance of the longitudinal beam connector.
And a positioning wing plate is further fixed on the connecting vertical plate, so that the fixture can be conveniently positioned.
The main reinforcing plate and the auxiliary reinforcing plate are respectively provided with a liquid leakage hole which is correspondingly communicated with the supporting main part, and the liquid leakage holes are used for discharging accumulated liquid in parts, so that the oxidation corrosion of accelerated parts is prevented, and the service life of the parts is prevented from being influenced.
Longeron connecting portion on still be equipped with the location mounting hole, be used for the utility model discloses with the location of back longeron assembly when fixed mutually, be convenient for operate.
The utility model discloses a use and principle:
the utility model relates to a rear longitudinal beam subassembly, namely a main bearing and connecting structure between a torsion beam and a rear longitudinal beam assembly, a supporting main part is provided with a longitudinal beam connecting part connected with the rear longitudinal beam assembly, the longitudinal beam connecting part is formed by continuous folding and stamping so as to increase the bearing strength of the longitudinal beam, as the main bearing part of the utility model adopts stamping forming, unnecessary connecting seams are reduced as far as possible under the condition of ensuring the strength, the strength of the whole structure is increased to a certain extent, a main reinforcing plate is also fixed on the supporting main part, a welding nut used for bearing and connecting is fixed with the main reinforcing plate, the bearing strength of the welding nut is increased, the stress area is increased simultaneously, the local bearing strength of the supporting main part is reduced, and an integrally formed longitudinal beam connecting body is arranged on the main reinforcing plate and is also used for fixedly connecting with the rear longitudinal beam assembly, and a reinforcing rib is also arranged on the longitudinal beam connecting body, increase the resistance to deformation ability of main reinforcing plate, all be equipped with the protruding rib of arc and the sub-reinforcing plate that the punching press formed with welded nut junction on main reinforcing plate, increase from many aspects the utility model discloses a bearing capacity and resistance to deformation intensity guarantee overall structure's fastness and stability.
Claims (7)
1. Back longeron subassembly is including supporting the main part, fixing first reinforcement component and the second reinforcement component on supporting the different positions of main part, characterized by:
the supporting main part is an integrated part formed by stamping a metal plate, one end of the supporting main part is vertically and horizontally turned outwards to form a longitudinal beam connecting part, two sides of the supporting main part are vertically and upwards turned to form symmetrical connecting vertical plates, the end part of each connecting vertical plate corresponding to the longitudinal beam connecting part is provided with a longitudinal beam fixing body formed by turning outwards, the horizontal bottom of the supporting main part is a fixing bottom plate, the upper surface of the fixing bottom plate is fixedly provided with a welding nut A and a welding nut B which are vertically arranged, and the fixing bottom plate is provided with through holes which are respectively matched with the welding nut A and the welding nut B;
the first reinforcing component comprises a main reinforcing plate and a sub reinforcing plate fixed on the main reinforcing plate, wherein the sub reinforcing plate comprises a sub reinforcing plate A and a sub reinforcing plate B;
the main reinforcing plate is an integrated piece formed by stamping a metal plate, connecting flanges formed by upward turning are arranged on two sides of the main reinforcing plate, a longitudinal beam connecting body formed by upward turning is arranged at one end of the main reinforcing plate, the main reinforcing plate is fixed on a fixed base plate for supporting the main part, the connecting flanges on two sides of the main reinforcing plate are correspondingly fixed on the inner side surface of a connecting vertical plate, the longitudinal beam connecting body is correspondingly flush with a longitudinal beam fixing body at the end part of the connecting vertical plate, an arc-shaped convex reinforcing part A formed by stamping is also arranged on the main reinforcing plate, the arc-shaped convex reinforcing part A, the connecting flanges on the main reinforcing plate and the longitudinal beam connecting body are connected into a whole, a sub reinforcing plate A smoothly attached to the surface of the arc-shaped convex reinforcing part A is also fixed on the upper surface of the arc-shaped convex reinforcing part A, and the sub reinforcing plate A vertically and upwards penetrate through the arc-shaped, the main reinforcing plate is also provided with an arc-shaped convex reinforcing part B formed by stamping, the arc-shaped convex reinforcing part B is connected with the connecting flanging at the other side of the main reinforcing plate to form a whole, the upper surface of the arc-shaped convex reinforcing part B is also fixedly provided with a sub reinforcing plate B which is smoothly attached to the surface of the arc-shaped convex reinforcing part B, the welding nut B vertically and upwards penetrates through the arc-shaped convex reinforcing part B and the sub reinforcing plate B and is fixed with the arc-shaped convex reinforcing part B and the sub reinforcing plate B, the upper surface of the main reinforcing plate is fixedly provided with a vertically arranged welding nut C, and the fixed bottom plate and the main reinforcing plate are respectively provided with a through hole correspondingly matched with;
the second strengthen the subassembly include vice reinforcing plate and fix the welding nut butyl on vice reinforcing plate, vice reinforcing plate is fixed on the PMKD who supports the main part, one side of vice reinforcing plate is for turning over the fixed turn-ups that turns over a formation upwards, should fix the turn-ups and correspond to fix on the interior survey face of longeron connecting portion on supporting the main part, all be equipped with on support main part and the vice reinforcing plate and correspond the through-hole that matches with welding nut butyl.
2. The rear rail subassembly of claim 1 wherein: the edges of the connecting vertical plates and the edges of the fixed bottom plate are provided with reinforced flanges which are formed by outward turning.
3. The rear rail subassembly of claim 2 wherein: the corners of the reinforced flanging are provided with deformation notches.
4. The rear rail subassembly of claim 1 wherein: the turnover part of the longitudinal beam connector is provided with a reinforcing rib formed by inward stamping and sinking.
5. The rear rail subassembly of claim 1 wherein: and a positioning wing plate is also fixed on the connecting vertical plate.
6. The rear rail subassembly of claim 1 wherein: and the main reinforcing plate and the auxiliary reinforcing plate are respectively provided with a liquid leakage hole which is correspondingly communicated with the supporting main part.
7. The rear rail subassembly of claim 1 wherein: and the longitudinal beam connecting part is also provided with a positioning mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542250.5U CN212685748U (en) | 2020-07-30 | 2020-07-30 | Rear longitudinal beam sub-assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021542250.5U CN212685748U (en) | 2020-07-30 | 2020-07-30 | Rear longitudinal beam sub-assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212685748U true CN212685748U (en) | 2021-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021542250.5U Active CN212685748U (en) | 2020-07-30 | 2020-07-30 | Rear longitudinal beam sub-assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212685748U (en) |
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2020
- 2020-07-30 CN CN202021542250.5U patent/CN212685748U/en active Active
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