CN117068266A - Reinforcing connection structure of front auxiliary frame - Google Patents
Reinforcing connection structure of front auxiliary frame Download PDFInfo
- Publication number
- CN117068266A CN117068266A CN202311222398.9A CN202311222398A CN117068266A CN 117068266 A CN117068266 A CN 117068266A CN 202311222398 A CN202311222398 A CN 202311222398A CN 117068266 A CN117068266 A CN 117068266A
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- Prior art keywords
- plate
- reinforcing
- reinforcing plate
- connection
- rear floor
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 96
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000005284 excitation Effects 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 8
- 238000013016 damping Methods 0.000 abstract description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
- B60N2/015—Attaching seats directly to vehicle chassis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/16—Mud-guards or wings; Wheel cover panels
- B62D25/163—Mounting devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a reinforced connection structure of a front auxiliary frame, which belongs to the field of front auxiliary frame structures, and is characterized in that a first reinforcing plate and a second reinforcing plate which are connected are arranged between a rear floor beam and a storage plate beam, and are arranged in a vertical direction, so that the bending rigidity of a wheel cover in the vertical direction is higher, and the excitation of a damping pavement in the vertical direction is more obvious; meanwhile, the first reinforcing plate, the second reinforcing plate and the wheel cover inner plate form a cavity beam structure, so that the transmission and dispersion of stress of the wheel cover inner plate and the absorption of collision energy at the rear end can be optimized, the rigidity strength is improved, meanwhile, the safety coefficient at the rear end of the vehicle body is improved, and the rigidity of the front auxiliary frame is enhanced; the structure meets the structural requirement and improves the structural mode through the connection assembly among the structural components; the connection rigidity and the mode of the front auxiliary frame are improved, so that the support of the auxiliary frame is firmer, the mode is higher, the motor mode is effectively avoided, resonance is avoided, and the safety and the comfort of the vehicle are improved.
Description
Technical Field
The invention belongs to the technical field of automobiles, in particular to the field of front auxiliary frame structures, and particularly relates to a reinforced connection structure of a front auxiliary frame.
Background
The road surface excitation is a main excitation source of the vehicle in the running process, excitation energy is transmitted to the passenger cabin through the modes of tires, suspensions, auxiliary frames and vehicle bodies, if the rigidity of the vehicle body parts close to the tires is insufficient, and the vehicle body parts particularly relate to wheel cover areas, the road surface excitation vibration and noise attenuation effects are small, the tire radiation noise is obvious, and the driving experience is seriously influenced.
Currently, for rear wheels, it is a more common way to strengthen the rigidity and strength of the rear wheel cover, and the specific ways include:
1. the reinforcing plate structure is designed to be directly welded with the inner plate of the rear wheel cover, so that the rigidity of the panel of the rear wheel cover is increased, and the vibration is reduced. But the structure of the prior reinforcing plate is simple and the reinforcing effect is not enough.
2. The reinforcing wheel cover is connected with the periphery, a single L-shaped connecting plate is generally designed to be connected with the floor, the structure of the connecting plate is simple, the arrangement of the connecting plate is not considered, the reinforcing effect cannot be achieved, and the quality and cost of the whole automobile are increased.
3. The rear end of the existing vehicle type, including SUV and sedan, does not form a continuous and stable force transmission structure, so that the force transmission at a certain position is interrupted, the local stress is concentrated, and the durability is affected.
Therefore, the common four-point front auxiliary frame has insufficient strength, sufficient bending rigidity and proper torsional rigidity, so that the adaptability of the automobile to road surface unevenness is ensured, resonance among all parts of the automobile in the using process cannot be completely avoided, the early damage of certain parts is caused, and the service life of the automobile is reduced.
Disclosure of Invention
In order to overcome the technical defects, the invention provides a reinforced connecting structure of a front auxiliary frame, which can solve the technical problem that the existing front auxiliary frame cannot bear the bending moment and the tolerance of shearing force generated by various loads such as torsion, bending and the like due to insufficient rigidity when in operation.
In order to achieve the above purpose, the present invention adopts the following technical contents:
a reinforced connection structure of a front auxiliary frame comprises a first reinforcing plate and a second reinforcing plate;
the first reinforcing plate is connected with the second reinforcing plate to form an L-shaped structural body, and the L-shaped structural body is arranged in a vertical direction relative to the rear floor longitudinal beam;
the first reinforcing plate and the second reinforcing plate are respectively connected with the wheel cover inner plate, and form a vertical cavity beam structure;
the L-shaped structure body is connected between the rear floor beam and the shelf beam.
Further, the L-shaped structural body is connected with the rear floor cross beam through a connecting piece; the connecting piece is respectively connected with the inner plate of the wheel cover and the rear floor longitudinal beam.
Further, the connecting piece is L-shaped and comprises a first connecting plate and a second connecting plate which are connected;
the top of the first connecting plate is connected with the bottom of the first reinforcing plate; the top of the second connecting plate is connected with the bottom of the second reinforcing plate;
the middle parts of the first connecting plate and the second connecting plate are in transition in an arc mode, and the bottoms of the first connecting plate and the second connecting plate are respectively connected with the rear floor beam.
Further, a plurality of connecting holes are formed in the side edge of the first connecting plate, and connecting holes are formed in the top and the bottom of the first connecting plate respectively; the side of the second connecting plate is provided with a plurality of connecting holes.
Further, the connecting piece is connected with the L-shaped structural body, the rear floor cross beam, the wheel cover inner plate and the rear floor longitudinal beam through bolts.
Further, the connecting piece is connected with the L-shaped structural body and the rear floor cross beam in a covering mode.
Further, the transverse dimension of the first reinforcing plate gradually decreases from top to bottom.
Further, the L-shaped structural body, the connecting piece, the rear floor beam and the shelf beam form a force transmission ring structure together.
Further, a rectangular plane is arranged at the top of the first reinforcing plate; the first reinforcing plate is connected with the seat lock catch mounting plate through a rectangular plane.
Further, the first reinforcing plate and the second reinforcing plate are connected through inner flanging welding of the first reinforcing plate and the second reinforcing plate.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a reinforced connection structure of a front auxiliary frame, which is characterized in that a first reinforcing plate and a second reinforcing plate which are connected are arranged between a rear floor beam and a storage plate beam, and are arranged in a vertical direction, so that the bending rigidity of a wheel cover in the vertical direction is higher, and the excitation of a damping pavement in the vertical direction is more obvious; meanwhile, the first reinforcing plate, the second reinforcing plate and the wheel cover inner plate form a cavity beam structure, so that the transmission and dispersion of stress of the wheel cover inner plate and the absorption of collision energy at the rear end can be optimized, the rigidity strength is improved, meanwhile, the safety coefficient at the rear end of the vehicle body is improved, and the rigidity of the front auxiliary frame is enhanced; the structure meets the structural requirement and improves the structural mode through the connection assembly among the structural components; the connection rigidity and the mode of the front auxiliary frame are improved, so that the support of the auxiliary frame is firmer, the mode is higher, the motor mode is effectively avoided, resonance is avoided, and the safety and the comfort of the vehicle are improved.
Preferably, the invention also provides a connecting piece for connecting the reinforcing plate with the rear floor beam, and reinforcing the rear wheel cover inner plate by means of the strength of the rear floor longitudinal beam, the beam and the shelf beam, thereby improving the rigidity and the mode of the wheel cover inner plate as a whole.
Further preferably, the side edges of the first connecting plate and the second connecting plate are provided with a plurality of connecting holes, and the connecting holes are distributed in a scattered manner, so that the rigidity and the mode of the large plates such as the lifted floor and the inner plate of the wheel cover are very beneficial to the overall connection due to the fact that the parts involved in the whole connection are wide and the connection manner and direction are comprehensive.
Further preferably, the connecting piece is fixed with the L-shaped structural body (namely the first reinforcing plate and the second reinforcing plate), the rear floor cross beam, the wheel cover inner plate and the rear floor longitudinal beam by bolts; the bolts are adopted for connection, so that the positioning is convenient and quick.
Further preferably, the connecting piece adopts the mode of covering to link to each other with L shape structure and rear floor crossbeam, and the one end of connecting piece links to each other with L shape structure, and the other end links to each other with the cavity on rear floor crossbeam upper portion, has kept the continuity of two part cavities, is favorable to collision security performance.
Further preferably, the first stiffener plate has a transverse dimension that tapers from top to bottom, which facilitates providing a mounting point for the connector.
Preferably, the L-shaped structural body, the connecting piece, the rear floor beam and the shelf beam form a force transmission ring structure together, the force transmission ring structure has obvious effects of damping tire noise and road surface excitation, the riding comfort is greatly improved, the durability of the rear end of the vehicle is more optimized, and the new feeling of the vehicle after durability is maintained.
Preferably, the top of the first reinforcing plate is provided with a rectangular plane, so that on one hand, a mounting point is conveniently provided for the seat lock catch mounting plate, and on the other hand, the seat lock catch mounting plate is conveniently matched with a seat backrest to limit the optimal angle of the seat.
Preferably, the first reinforcing plate and the second reinforcing plate are welded and connected through the inner side flanging of the first reinforcing plate and the second reinforcing plate, so that the L-shaped structural body is more stable and reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a reinforced connection structure of a front subframe according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a first reinforcing plate and a second reinforcing plate of a reinforcing connection structure of a front subframe according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a first reinforcing plate of a reinforcing connection structure of a front subframe according to an embodiment of the present invention;
fig. 4 is a connection schematic diagram of a first connection plate and a second connection plate of a reinforcing connection structure of a front subframe according to an embodiment of the present invention.
Reference numerals:
a first reinforcing plate-1; a second reinforcing plate-2; wheel cover inner plate-3; a first connection plate-4; a second connection plate-5; a rear floor cross member-6; a shelf beam-7; rear floor stringers-8;
rectangular plane-1-1; .
A first connection hole-4-1; a second connection hole-4-2; a third connecting hole-4-3; fourth connecting hole-4-4; fifth connecting holes-4-5; a sixth connecting hole-5-1; seventh connecting hole-5-2; eighth connecting hole-5-3.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the following specific embodiments are used for further describing the invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
examples
In the prior art, the common four-point front subframe has insufficient strength, sufficient bending rigidity and appropriate torsional rigidity to ensure the adaptability of the automobile to road surface unevenness, and also cannot completely avoid resonance among various parts of the automobile in the use process, so that early damage of certain parts is caused, and the service life of the automobile is reduced, therefore, in order to solve the problems, the embodiment provides a reinforced connection structure of the front subframe, which is a structural design of a full-frame six-point front subframe, and the specific structure is shown in fig. 1 and comprises:
a first reinforcing plate 1, a second reinforcing plate 2, a first connecting plate 4 and a second connecting plate 5; a wheel cover inner plate 3, a rear floor cross beam 6, a shelf cross beam 7 and a rear floor longitudinal beam 8; the specific structure is as follows:
as shown in FIG. 2, the reinforcing plate 2 is arranged in the Z direction, and compared with the arrangement mode that the common vehicle type surface is attached to the surface of the inner plate of the wheel cover, the arrangement ensures that the bending rigidity of the wheel cover in the Z direction is larger, and the excitation of the damping pavement in the Z direction is more obvious; in addition, the front second reinforcing plate 2 is welded at the inner flanging, the outer flanging is connected with the wheel cover inner plate 3 respectively, a vertical cavity beam structure is formed in the Z direction, the cavity can optimize the transmission and dispersion of stress of the wheel cover inner plate 3 and the absorption of collision energy of the rear end, and the safety coefficient of the rear end of the vehicle body is improved while the rigidity strength is improved.
As shown in fig. 3, the first reinforcing plate 1 is of a trapezoid structure design, is derived from a triangle, has higher supporting stability, and has a rectangular plane 1-1 structure design at the upper part, firstly, is convenient for providing mounting points for a seat lock catch mounting plate, and secondly, is matched with a seat backrest to limit the optimal angle of the seat; the size of the Y-direction from top to bottom is gradually reduced, the outer side flanging is along with the outline of the inner plate of the wheel cover, and in addition, the size of the lower part is reduced so as to provide mounting points for the front connecting plate and the rear connecting plate.
As shown in fig. 2, the second reinforcing plate 2 has an L-shaped structure and is divided into a long side Z-direction and a short side Y-direction, and flanges extending forward in the X-direction are arranged at the long side and the short side, so that the connection with peripheral parts is facilitated, and in addition, the flanges extending from the long side and the short side are smoothly transited by utilizing an arc shape, so that the transmission of stress is facilitated; the outer side of the long side is connected with the inner plate 3 of the wheel cover, and the flanging extending from the long side is connected with the first reinforcing plate 1; the short side body and the extended flanging form an L-shaped supporting frame structure in the Y direction, so that the L-shaped supporting frame structure is convenient to be positioned and connected with the front cross beam of the object placing plate.
The structural design of the first reinforcing plate 1 and the second reinforcing plate 2 and the vertical cavity beam structure formed with the wheel cover inner plate 3 are all one of the invention points.
As shown in fig. 4, the connecting piece composed of the first connecting plate 4 and the second connecting plate 5 is also one of the invention points, and the specific structure is as follows: the connecting piece is innovatively designed into a front-back L-shaped connecting plate structure, and is arranged near the beam at the upper part of the rear floor and the reinforcing plate of the wheel cover, the inner plate 3 of the wheel cover and the reinforcing plate (namely the first reinforcing plate 1 and the second reinforcing plate 2) of the wheel cover are arranged on the rear floor, the beam at the upper part of the rear floor is connected and reinforced in an omnibearing way, and the rigidity and the mode of the wheel cover plate are greatly improved by means of the strength of the longitudinal beam and the transverse beam.
The first connecting plate 4 and the second connecting plate 5 are connected front and back in the X direction and form a cavity structure, one end covers and connects the cavity of the front second reinforcing plate 2, and the other end covers and connects the cavity of the beam at the upper part of the rear floor, so that the continuity of the cavity is maintained, and the collision safety performance is facilitated; and the front connecting plate and the rear connecting plate are more in transition by utilizing an arch structure, so that the bearing and stress optimization of the connecting position are improved.
In addition, the connection between the first connecting plate 4 and the second connecting plate 5 and the periphery is also a bright point, the first body is in the current connection mode, and all the connections with the periphery are fastened by bolts, so that the positioning and the installation are convenient and quick; the second body is a connecting part, as shown in fig. 4, the front and rear connecting plates are provided with 8 bolt connecting points, the first connecting plates 4 are 5, the second connecting plates 5 are 3, the first connecting holes 4-1 are the Y-direction connection of the first connecting plates 4 and the first reinforcing plates 1, the second connecting holes 4-2 are the Z-direction connection of the first connecting plates 4 and the upper cross beam of the rear floor, the third connecting holes 4-3 are the X-direction connection of the first connecting plates 4 and the upper cross beam of the rear floor, the fourth connecting holes 4-4 are the Z-direction connection of the first connecting plates 4 and the rear floor longitudinal beam cover plates and the seat mounting plates, the fifth connecting holes 4-5 are the first connecting plates 4, the first reinforcing plates 1, the wheel cover inner plates 3 are connected in the Y-direction, the sixth connecting holes 5-1 are the second connecting plates 5 and the second reinforcing plates 2, the wheel cover inner plates 3 are connected in the Y-direction connection of the second connecting plates 5-2, the eighth connecting holes 5-3 are the Z-direction connection of the second connecting plates 5 and the cover plates of the rear floor longitudinal beams 8, the whole connecting plates are connected in the Z-direction, the whole connecting holes 4 and the whole connecting plates are connected in the Z-direction, the whole connecting plates and the mode of the rear floor longitudinal beams is very good for the overall rigidity, the mode, the overall mode and the mode of the connection is very good, and the mode, and the overall mode is involved, and the mode is convenient.
As shown in fig. 1, another aspect of the present invention is: the first connecting plate 4, the second connecting plate 5, the first reinforcing plate 1 and the second reinforcing plate 2, the rear floor beam 6 and the shelf beam 7 form a force transmission ring structure, the force transmission ring is stable and continuous, stress transmission is not interrupted at each corner, the stress transmission path is greatly optimized, the durability and the supporting stability of the rear end of the vehicle body are improved, the excitation can be effectively attenuated, and the noise radiation is improved.
Through the innovative structural design, the reinforcing plate structure of the rear wheel cover inner plate is designed, the front and rear connecting plate structures are designed on the basis of the reinforcing plate, the connection between the wheel cover inner plate and the rear floor longitudinal beam, the connection between the rear floor longitudinal beam and the rear floor and the connection between the rear wheel cover inner plate and the rear floor are increased, the structure and arrangement of the connecting plates are optimized, the rigidity and the mode of the rear wheel cover inner plate are integrally improved by means of the strength of the rear floor longitudinal beam, the strength of the rear floor transverse beam and the strength of the material placing plate transverse beam, a continuous stable force transmission ring structure is formed at the rear end of a vehicle, the driving comfort is greatly improved, the durability of the rear end of the vehicle is more optimized, and the sense of new driving after durability is kept.
In summary, the invention provides a reinforced connection structure of a front auxiliary frame, which has the following advantages compared with the existing reinforced connection mode:
according to the reinforced connecting structure, the first reinforcing plate and the second reinforcing plate which are connected are arranged between the rear floor beam and the object placing plate beam, and are arranged in the vertical direction, so that the bending rigidity of the wheel cover in the vertical direction is higher, and the excitation of the damping pavement in the vertical direction is more obvious; meanwhile, the first reinforcing plate, the second reinforcing plate and the wheel cover inner plate form a cavity beam structure, so that the transmission and dispersion of stress of the wheel cover inner plate and the absorption of collision energy at the rear end can be optimized, the rigidity strength is improved, meanwhile, the safety coefficient at the rear end of the vehicle body is improved, and the rigidity of the front auxiliary frame is enhanced; the structure meets the structural requirement and improves the structural mode through the connection assembly among the structural components; the connection rigidity and the mode of the front auxiliary frame are improved, so that the support of the auxiliary frame is firmer, the mode is higher, the motor mode is effectively avoided, resonance is avoided, and the safety and the comfort of the vehicle are improved.
And the connection of the wheel cover inner plate with the rear floor longitudinal beam, the cross beam and the rear floor is increased, the structure and arrangement of the connecting plates are optimized, the rear wheel cover inner plate is reinforced by means of the strength of the rear floor longitudinal beam, the cross beam and the object placing plate cross beam, the rigidity and the mode of the wheel cover inner plate are integrally improved, a continuous and stable force transmission ring structure is formed at the rear end of the vehicle, the effect of damping tire noise and road surface excitation is obvious, the driving comfort is greatly improved, the durability of the rear end of the vehicle is more optimized, and the new feeling after durability is kept.
The above embodiment is only one of the implementation manners capable of implementing the technical solution of the present invention, and the scope of the claimed invention is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily recognized by those skilled in the art within the technical scope of the present invention.
Claims (10)
1. The reinforcing connection structure of the front auxiliary frame is characterized by comprising a first reinforcing plate (1) and a second reinforcing plate (2);
the first reinforcing plate (1) is connected with the second reinforcing plate (2) to form an L-shaped structure body, and the L-shaped structure body is arranged in a vertical direction relative to the rear floor longitudinal beam (8);
the first reinforcing plate (1) and the second reinforcing plate (2) are respectively connected with the wheel cover inner plate (3), and the first reinforcing plate, the second reinforcing plate and the wheel cover inner plate form a vertical cavity beam structure;
the L-shaped structure body is connected between the rear floor beam (6) and the shelf beam (7).
2. A reinforcing connection structure for a front subframe according to claim 1, wherein the L-shaped structure is connected to the rear floor cross member (6) by a connecting member; the connecting pieces are respectively connected with the wheel cover inner plate (3) and the rear floor longitudinal beam (8).
3. A reinforcing connection structure for a front subframe according to claim 2, wherein the connection member is L-shaped and comprises a first connection plate (4) and a second connection plate (5) connected to each other;
the top of the first connecting plate (4) is connected with the bottom of the first reinforcing plate (1); the top of the second connecting plate (5) is connected with the bottom of the second reinforcing plate (2);
the middle parts of the first connecting plate (4) and the second connecting plate (5) are in transition in an arc mode, and the bottoms of the first connecting plate and the second connecting plate are respectively connected with the rear floor beam (6).
4. A reinforcing connection structure for a front subframe according to claim 3, wherein the side edge of the first connection plate (4) is provided with a plurality of connection holes, and the top and bottom are respectively provided with connection holes; the side of the second connecting plate (5) is provided with a plurality of connecting holes.
5. The reinforcing connection structure of a front subframe according to claim 2, wherein the connection member is connected to the L-shaped structure, the rear floor cross member (6), the wheel house inner panel (3) and the rear floor side member (8) by bolts.
6. A reinforcing connection structure for a front subframe according to claim 2, wherein the connection member is connected to the L-shaped structure and the rear floor cross member (6) in a covering manner, respectively.
7. A reinforcing connection structure for a front subframe according to claim 2, characterized in that the transverse dimension of the first reinforcing plate (1) decreases gradually from top to bottom.
8. A reinforced connection structure of a front subframe according to claim 2, characterized in that the L-shaped structure, the connection piece, the rear floor cross member (6) and the shelf cross member (7) together form a force transmission ring structure.
9. A reinforcing connection structure of a front subframe according to claim 1, characterized in that the top of the first reinforcing plate (1) is provided with a rectangular plane (1-1); the first reinforcing plate (1) is connected with the seat lock catch mounting plate through a rectangular plane (1-1).
10. The reinforcing connection structure of a front subframe according to claim 1, wherein the first reinforcing plate (1) and the second reinforcing plate (2) are connected by an inside flange welding of both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311222398.9A CN117068266A (en) | 2023-09-20 | 2023-09-20 | Reinforcing connection structure of front auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311222398.9A CN117068266A (en) | 2023-09-20 | 2023-09-20 | Reinforcing connection structure of front auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117068266A true CN117068266A (en) | 2023-11-17 |
Family
ID=88713567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311222398.9A Pending CN117068266A (en) | 2023-09-20 | 2023-09-20 | Reinforcing connection structure of front auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117068266A (en) |
-
2023
- 2023-09-20 CN CN202311222398.9A patent/CN117068266A/en active Pending
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