CN220391342U - Reinforcing structure for mounting point of rear auxiliary frame and vehicle - Google Patents
Reinforcing structure for mounting point of rear auxiliary frame and vehicle Download PDFInfo
- Publication number
- CN220391342U CN220391342U CN202321903964.8U CN202321903964U CN220391342U CN 220391342 U CN220391342 U CN 220391342U CN 202321903964 U CN202321903964 U CN 202321903964U CN 220391342 U CN220391342 U CN 220391342U
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- longitudinal beam
- welding
- plate
- welded
- mounting point
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- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 87
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims description 76
- 230000002787 reinforcement Effects 0.000 claims description 44
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000005284 excitation Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a rear auxiliary frame mounting point reinforcing structure and a vehicle, comprising a rear longitudinal beam lower plate, a rear longitudinal beam upper plate, a rear longitudinal beam side sealing plate, a first reinforcing piece, a second reinforcing piece, a third reinforcing piece and a threaded pipe; the rear longitudinal beam lower plate, the rear longitudinal beam upper plate and the rear longitudinal beam side sealing plates are welded to form a closed longitudinal beam; the first reinforcing piece, the second reinforcing piece, the third reinforcing piece and the threaded pipe are welded to form a reinforcing structure with a threaded pipe arranged in the middle and supported in the upper, lower, left and right directions, and the supports in the four directions are welded with the corresponding surfaces of the longitudinal beams respectively. The utility model can provide support for the longitudinal beam up and down and left and right, and transmit the force transmitted by the chassis to four surfaces of the longitudinal beam, thereby increasing more bearing structures and further increasing the dynamic rigidity and strength of the mounting point.
Description
Technical Field
The utility model relates to the technical field of a reinforcing structure of a mounting point of a rear auxiliary frame, in particular to a reinforcing structure of a mounting point of a rear auxiliary frame and a vehicle.
Background
On rough road surfaces, the road noise in the passenger cabin becomes more prominent because of no engine noise masking, so the road noise control of the electric vehicle is more strict than that of the traditional fuel vehicle. The auxiliary frame is one of main paths for road surface excitation to be transmitted to the vehicle body through the suspension, and the dynamic rigidity of the side mounting point of the vehicle body of the rear auxiliary frame needs to be controlled, so that the vibration isolation of the vehicle body is enhanced, the force transmitted to the vehicle body by the chassis is reduced, and the complaints of passengers caused by large road noise are avoided.
The mounting point of the rear auxiliary frame of the existing electric automobile is mainly selected on a longitudinal beam, because of the limitation of the internal space and the manufacturing process of the longitudinal beam, a structure of a threaded pipe and a reinforcing piece in the longitudinal beam is generally adopted, the threaded pipe is respectively welded with the top surface of the longitudinal beam and the reinforcing piece (as a rear auxiliary frame mounting assembly disclosed in patent document CN218229133U and a vehicle with the same), the reinforcing piece and the left side and right side surfaces of the longitudinal beam are welded, the structure can only meet basic strength requirements, the dynamic rigidity of the mounting point of the side of the vehicle body of the rear auxiliary frame is low, and road surface excitation is transmitted into the vehicle through the rear auxiliary frame, so that the problem of large noise in the vehicle is caused.
Therefore, it is necessary to develop a rear subframe mounting point reinforcing structure and a vehicle.
Disclosure of Invention
The utility model aims to provide a reinforcing structure for a mounting point of a rear auxiliary frame and a vehicle, which can provide support for longitudinal beams in the up-down and left-right directions, transmit the force transmitted by a chassis to four surfaces of the longitudinal beams, increase more bearing structures and increase the dynamic rigidity and strength of the mounting point.
The utility model relates to a reinforcing structure for a mounting point of a rear auxiliary frame, which comprises a rear longitudinal beam lower plate, a rear longitudinal beam upper plate, a rear longitudinal beam side sealing plate, a first reinforcing piece, a second reinforcing piece, a third reinforcing piece and a threaded pipe, wherein the rear longitudinal beam upper plate is provided with a first reinforcing piece and a second reinforcing piece; the rear longitudinal beam lower plate, the rear longitudinal beam upper plate and the rear longitudinal beam side sealing plates are welded to form a closed longitudinal beam; the first reinforcing piece, the second reinforcing piece, the third reinforcing piece and the threaded pipe are welded to form a reinforcing structure with a threaded pipe arranged in the middle and supported in the upper, lower, left and right directions, and the supports in the four directions are welded with the corresponding surfaces of the longitudinal beams respectively.
Optionally, the first reinforcement includes the horizontal plate to and set up the first welding turn-ups on the side of back longeron side seal board is kept away from to the horizontal plate, the first welding turn-ups of first reinforcement are welded with the back longeron hypoplastron respectively. The welding area with the rear side rail lower plate is increased while the rigidity is increased.
Optionally, a first bolt hole for allowing the mounting bolt of the auxiliary frame to pass through is formed in the lower plate of the rear longitudinal beam; and a second bolt hole is formed in the horizontal plate at a position corresponding to the first bolt hole.
Optionally, reinforcing flanges are arranged on the front side and the rear side of the horizontal plate, and the two first reinforcing flanges are respectively positioned on the front side and the rear side of the first welding flange; the strength of the first reinforcing member is increased.
Optionally, the second reinforcement member includes a first vertical plate, a second welding flange disposed below the first vertical plate, a third welding flange disposed on one side of the first vertical plate far from the side sealing plate of the rear longitudinal beam, and a fourth welding flange disposed above the first vertical plate;
the first vertical plate is provided with a first groove for placing the threaded pipe;
the first reinforcing piece, the second reinforcing piece and the rear longitudinal beam lower plate are welded at the second welding flanging position by three layers of spot welding;
the second reinforcing piece and the upper plate of the rear longitudinal beam are welded at the position of the third welding flanging and the fourth welding flanging by adopting two layers of spot welding; and the vertical support is provided for the longitudinal beam, so that the dynamic stiffness of the mounting point in the vertical direction is improved.
Optionally, the third reinforcement comprises a second vertical plate, and a lap joint flanging is arranged on one side of the second vertical plate, which is close to the side sealing plate of the rear longitudinal beam; the third reinforcing piece is connected with the rear longitudinal beam side sealing plate at the lap joint flanging position through structural adhesive; the second reinforcing piece and the third reinforcing piece provide left and right direction support for the longitudinal beam, and meanwhile, the force in the up and down direction is transmitted to the left and right sides of the longitudinal beam, so that the dynamic stiffness of the mounting point is improved.
Optionally, a second groove for placing the threaded pipe is formed in the middle of the second vertical plate, welding surfaces are formed in the left and right parts of the second vertical plate, and the third reinforcing piece is welded with the second reinforcing piece through the welding surfaces; the second reinforcing piece and the third reinforcing piece provide left and right direction support for the longitudinal beam, and meanwhile, the force in the up and down direction is transmitted to the left and right sides of the longitudinal beam, so that the dynamic stiffness of the mounting point is improved.
Optionally, the first reinforcement and the threaded pipe are welded by carbon dioxide arc welding; the second reinforcement and the threaded pipe are welded through carbon dioxide arc welding; and the third reinforcement and the threaded pipe are welded by carbon dioxide arc welding.
Optionally, the rear side rail lower plate and the rear side rail upper plate are welded by two layers of spot welding.
In a second aspect, the utility model provides a vehicle employing a rear subframe mounting point reinforcing structure according to the utility model.
The utility model has the beneficial effects that:
(1) The utility model can provide support for the longitudinal beam up and down and left and right, and transmit the force transmitted by the chassis to four surfaces of the longitudinal beam, thereby increasing more bearing structures and further increasing the dynamic rigidity and strength of the mounting point.
(2) The first reinforcement is designed with three flanging, so that the rigidity is increased, and the welding area with the lower plate of the rear longitudinal beam is increased; the rear longitudinal beam lower plate and the first reinforcing piece are welded, so that the stress of the rear longitudinal beam lower plate is reduced, and the strength is increased.
(3) The second reinforcement is designed with a groove and three turnups, the threaded pipe is placed in the groove and welded with the second reinforcement, the upper turnups are welded with the upper plate of the rear longitudinal beam, the lower turnups are welded with the first reinforcement and the lower plate of the rear longitudinal beam through three layers of spot welding, support in the vertical direction is provided for the longitudinal beam, and the dynamic stiffness in the vertical direction of the mounting point is improved.
(4) The third reinforcement is designed with a groove and a flanging, the threaded pipe is placed in the groove and welded with the third reinforcement, the second reinforcement and the third reinforcement are welded through two layers of spot welding, and the flanging is connected with the side sealing plate of the rear longitudinal beam through structural adhesive. The second reinforcement and the third reinforcement provide support in the left-right direction for the longitudinal beam, and meanwhile force in the up-down direction is transmitted to the left side surface and the right side surface of the longitudinal beam, so that the dynamic stiffness of the mounting point is improved.
Drawings
Fig. 1 is an exploded view of the rear subframe mounting point reinforcing structure of the present embodiment;
FIG. 2 is a schematic structural view of a first reinforcing member according to the present embodiment;
FIG. 3 is a schematic structural view of a second reinforcing member according to the present embodiment;
FIG. 4 is a schematic structural view of a third reinforcing member according to the present embodiment;
FIG. 5 is a schematic view of the welding of the first reinforcement member to the threaded pipe in this embodiment;
FIG. 6 is a schematic view of the welding of the second reinforcement member to the threaded pipe in this embodiment;
FIG. 7 is a schematic view of the third reinforcement and threaded pipe weld in this embodiment;
FIG. 8 is a schematic view of the welding of the first reinforcement member, the second reinforcement member, and the rear rail lower plate in this embodiment;
FIG. 9 is a schematic view of the welding of the first stiffener, the rear rail lower plate and the rear rail upper plate in this embodiment;
FIG. 10 is a schematic view of the welding of the second reinforcement member to the rear rail upper plate in this embodiment;
FIG. 11 is a schematic view of the connection of the third stiffener to the rear rail side closure plate in this embodiment;
in the figure: 1-first bolt holes, 2-rear longitudinal beam lower plates, 3-rear longitudinal beam side sealing plates, 4-rear longitudinal beam upper plates, 5-first reinforcing parts, 6-second reinforcing parts, 7-third reinforcing parts, 8-threaded pipes, 9-first welding flanges, 10-reinforcing flanges, 11-horizontal plates, 12-second welding flanges, 13-third welding flanges, 14-fourth welding flanges, 15-first grooves, 16-welding surfaces, 17-lap flanges, 18-second welding surfaces, 19-carbon dioxide arc welding, 20-first vertical plates, 21-second vertical plates, 22-second bolt holes and 23-second grooves.
Detailed Description
Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the following description of the embodiments of the present utility model with reference to the accompanying drawings and preferred examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
As shown in fig. 1 to 11, in the present embodiment, a rear subframe mounting point reinforcing structure includes a rear side rail lower plate 2, a rear side rail upper plate 4, a rear side rail side seal plate 3, a first reinforcing member 5, a second reinforcing member 6, a third reinforcing member 7, and a threaded pipe 8; the rear longitudinal beam lower plate 2, the rear longitudinal beam upper plate 4 and the rear longitudinal beam side sealing plates 3 are welded to form a closed longitudinal beam; the first reinforcing piece 5, the second reinforcing piece 6, the third reinforcing piece 7 and the threaded pipe 8 are welded to form a reinforcing structure with a threaded pipe being centered and supported in the upper, lower, left and right directions, and the supports in the four directions are welded with the corresponding surfaces of the longitudinal beams respectively. The support is provided for the longitudinal beam up and down and left and right, the force transmitted by the chassis is transmitted to four surfaces of the longitudinal beam, and more bearing structures are added, so that the dynamic stiffness and strength of the mounting point are increased.
Referring to fig. 2, in this embodiment, the first reinforcement member 5 includes a horizontal plate 11, and a first welding flange 9 provided on a side of the horizontal plate 11 remote from the rear side rail side seal plate 3. The front and back sides of the horizontal plate 11 are respectively provided with a reinforcing flange 10, and the two first reinforcing flanges 10 are respectively positioned on the front and back sides of the first welding flange 9. The reinforcing flange 10 serves to reinforce the rigidity, and the first welding flange 9 is a welding edge.
Referring to fig. 1 and 2, in this embodiment, a first bolt hole 1 for passing through a subframe mounting bolt is formed in the rear side rail lower plate 2; the horizontal plate 11 is provided with a second bolt hole 22 at a position corresponding to the first bolt hole 1.
Referring to fig. 3, in the present embodiment, the second reinforcement member 6 includes a first vertical plate 20, a second welding flange 12 disposed below the first vertical plate 20, a third welding flange 13 disposed on a side of the first vertical plate 20 away from the rear side rail side seal plate 3, and a fourth welding flange 14 disposed on an upper side of the first vertical plate 20; the first vertical plate 20 is provided with a first groove 15 for placing the threaded pipe 8, and the first groove 15 is used for placing the threaded pipe 8.
Referring to fig. 4, in this embodiment, the third reinforcement member 7 includes a second vertical plate 21, and a lap joint flange 17 disposed on one side of the second vertical plate 21 near the rear side rail side seal plate 3. The middle part of the second vertical plate 21 is provided with a second groove 23 for placing the threaded pipe 8, the left and right parts of the second vertical plate 21 are both provided with welding surfaces 16, and the third reinforcing piece 7 is welded with the second reinforcing piece 6 through the welding surfaces 16.
Referring to fig. 5, the first reinforcement 5 and the threaded pipe 8 are welded by carbon dioxide welding 19.
Referring to fig. 6, the second reinforcement 6 and the threaded pipe 8 are welded by carbon dioxide welding 19.
Referring to fig. 7, the third reinforcement 7 and the threaded pipe 8 are welded by carbon dioxide welding 19, and the third reinforcement 7 and the second reinforcement 6 are welded by two-layer spot welding by the welding surface 16.
Referring to fig. 8, in the present embodiment, the first reinforcement 5 and the rear side sill lower plate 2 are welded by two-layer spot welding by the first welding flange 9; the stress of the lower plate of the rear longitudinal beam is reduced, and the strength is increased. The first reinforcing member 5, the second reinforcing member 6, and the rear side member lower plate 2 are welded by three-layer spot welding at the second welding flange 12.
Referring to fig. 9, in the present embodiment, the rear side member lower plate 2, the rear side member upper plate 4 are welded by two-layer spot welding; the first reinforcing member 5, the rear side member lower plate 2 and the rear side member upper plate 4 are welded by three layers of spot welding at the first welding flange 9.
Referring to fig. 10, in the present embodiment, the second reinforcement member 6 and the rear side rail upper plate 4 are welded by two-layer spot welding at the positions of the fourth welding flange 14 and the third welding flange 13.
Referring to fig. 11, in this embodiment, the third reinforcement member 7 and the rear rail side seal plate 3 are connected by structural adhesive at the position of the lap joint flange 17. The rear side member lower plate 2, the rear side member side seal plate 3, and the rear side member upper plate 4 are welded by spot welding.
Through above realize after auxiliary frame mounting point additional strengthening, can provide the support of controlling, upper and lower direction for the longeron, four faces of longeron are transmitted with the power transmission that the chassis comes, when satisfying intensity, provide higher mounting point dynamic stiffness.
In this embodiment, a vehicle employs the rear subframe mounting point reinforcing structure as described in this embodiment.
The embodiments described above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the embodiments described above, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the present utility model should be made in the equivalent manner, and are included in the scope of the present utility model.
Claims (10)
1. A rear auxiliary frame mounting point reinforced structure which is characterized in that: the novel steel wire rope welding device comprises a rear longitudinal beam lower plate (2), a rear longitudinal beam upper plate (4), a rear longitudinal beam side sealing plate (3), a first reinforcing piece (5), a second reinforcing piece (6), a third reinforcing piece (7) and a threaded pipe (8); the rear longitudinal beam lower plate (2), the rear longitudinal beam upper plate (4) and the rear longitudinal beam side sealing plates (3) are welded to form a closed longitudinal beam; the first reinforcing piece (5), the second reinforcing piece (6), the third reinforcing piece (7) and the threaded pipe (8) are welded to form a reinforcing structure with a threaded pipe arranged in the middle and supported in the upper, lower, left and right directions, and the supports in the four directions are welded with the corresponding surfaces of the longitudinal beams respectively.
2. The rear subframe mounting point reinforcing structure as claimed in claim 1, wherein: the first reinforcement (5) comprises a horizontal plate (11) and a first welding flanging (9) arranged on one side of the horizontal plate (11) far away from the rear longitudinal beam side sealing plate (3), and the horizontal plate (11) and the first welding flanging (9) of the first reinforcement (5) are welded with the rear longitudinal beam lower plate (2) respectively.
3. The rear subframe mounting point reinforcing structure as claimed in claim 2, wherein: a first bolt hole (1) for allowing the installation bolt of the auxiliary frame to pass through is formed in the rear longitudinal beam lower plate (2); a second bolt hole (22) is formed in the horizontal plate (11) at a position corresponding to the first bolt hole (1).
4. The rear subframe mounting point reinforcing structure as claimed in claim 2, wherein: reinforcing flanges (10) are arranged on the front side and the rear side of the horizontal plate (11), and the two first reinforcing flanges (10) are respectively positioned on the front side and the rear side of the first welding flange (9).
5. The rear subframe mounting point reinforcing structure as claimed in claim 1, wherein: the second reinforcement (6) comprises a first vertical plate (20), a second welding flange (12) arranged below the first vertical plate (20), a third welding flange (13) arranged on one side of the first vertical plate (20) far away from the rear longitudinal beam side sealing plate (3), and a fourth welding flange (14) arranged on the upper side of the first vertical plate (20);
a first groove (15) for placing the threaded pipe (8) is formed in the first vertical plate (20);
the first reinforcing piece (5), the second reinforcing piece (6) and the rear longitudinal beam lower plate (2) are welded at the position of the second welding flanging (12) by three layers of spot welding;
the second reinforcing piece (6) and the rear longitudinal beam upper plate (4) are welded by adopting two layers of spot welding at the positions of the third welding flanging (13) and the fourth welding flanging (14).
6. The rear subframe mounting point reinforcing structure as claimed in claim 1, wherein: the third reinforcement (7) comprises a second vertical plate (21), and a lap joint flanging (17) is arranged on one side of the second vertical plate (21) close to the rear longitudinal beam side sealing plate (3); the third reinforcement (7) and the rear longitudinal beam side sealing plate (3) are connected through structural adhesive at the position of the lap joint flanging (17).
7. The rear subframe mounting point reinforcing structure as claimed in claim 6, wherein: the middle part of second riser (21) is equipped with second recess (23) that are used for placing screwed pipe (8), both sides all are equipped with welding face (16) about second riser (21), and third reinforcement (7) are welded with second reinforcement (6) through welding face (16).
8. The rear subframe mounting point reinforcing structure as claimed in claim 1, wherein: the first reinforcement (5) and the threaded pipe (8) are welded by carbon dioxide arc welding (19); the second reinforcement (6) and the threaded pipe (8) are welded by carbon dioxide arc welding (19); the third reinforcement (7) and the threaded pipe (8) are welded by carbon dioxide welding (19).
9. The rear subframe mounting point reinforcing structure as claimed in claim 1, wherein: the rear longitudinal beam lower plate (2) and the rear longitudinal beam upper plate (4) are welded through two layers of spot welding.
10. A vehicle, characterized in that: a rear subframe mounting point reinforcing structure as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321903964.8U CN220391342U (en) | 2023-07-19 | 2023-07-19 | Reinforcing structure for mounting point of rear auxiliary frame and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321903964.8U CN220391342U (en) | 2023-07-19 | 2023-07-19 | Reinforcing structure for mounting point of rear auxiliary frame and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220391342U true CN220391342U (en) | 2024-01-26 |
Family
ID=89602609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321903964.8U Active CN220391342U (en) | 2023-07-19 | 2023-07-19 | Reinforcing structure for mounting point of rear auxiliary frame and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220391342U (en) |
-
2023
- 2023-07-19 CN CN202321903964.8U patent/CN220391342U/en active Active
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