CN216070199U - Rear section connecting structure of semi-load-bearing vehicle frame - Google Patents
Rear section connecting structure of semi-load-bearing vehicle frame Download PDFInfo
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- CN216070199U CN216070199U CN202122027134.0U CN202122027134U CN216070199U CN 216070199 U CN216070199 U CN 216070199U CN 202122027134 U CN202122027134 U CN 202122027134U CN 216070199 U CN216070199 U CN 216070199U
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Abstract
The utility model discloses a rear section connecting structure of a half-bearing frame, which comprises an upper beam frame and a lower beam frame, wherein the upper beam frame comprises a left upper longitudinal beam, a right upper longitudinal beam and at least one upper connecting cross beam; the lower beam frame comprises a left lower longitudinal beam, a right lower longitudinal beam and at least one lower connecting cross beam; the tail end of the left upper longitudinal beam and the front end of the left lower longitudinal beam are overlapped through the upper wing surface and the lower wing surface of the left upper longitudinal beam and are connected through bolts, and the outer sides of the overlapping area of the left upper longitudinal beam and the left lower longitudinal beam are connected in a reinforcing mode through a left connecting plate; the tail end of the right upper longitudinal beam and the front end of the right lower longitudinal beam are also overlapped through the upper wing surface and the lower wing surface of the right upper longitudinal beam and are connected through bolts, and the outer sides of the overlapping area of the right upper longitudinal beam and the right lower longitudinal beam are connected through a right connecting plate in an enhanced mode; carry out fixed connection through the ingot roof beam between left side connecting plate and the right side connecting plate, and the ingot roof beam also with left side longeron and right side longeron fixed connection down. The utility model is beneficial to improving the rigidity of the frame, improving the resonance frequency and reducing the resonance.
Description
Technical Field
The utility model belongs to the technical field of automobile body structures, and particularly relates to a rear section connecting structure of a half-bearing frame.
Background
Due to NVH (Noise, Vibration, Harshness, Noise, Vibration, and Harshness) performance requirements, the semi-load vehicle chassis needs to improve the frame stiffness, improve the resonance frequency, and reduce resonance. However, in the current domestic passenger car adopting the semi-load type car body structure, the ingot beam (the rear suspension bracket of the engine) is arranged at the upper longitudinal beam, and the cantilever of the ingot beam is longer, so that the rigidity of the car frame at the ingot beam is weaker, resonance is easy to generate during the running of the car, and the NVH performance requirement cannot be met. Therefore, a rear-section connecting structure of a half-load frame, which can solve the above problems, is urgently needed.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems, the utility model provides a rear section connecting structure of a half-bearing frame, which is characterized in that a shoe-shaped beam is fixedly connected with a lower longitudinal beam, the length of a cantilever of the shoe-shaped beam is reduced, the rigidity of the frame is improved, the resonance frequency is improved, and the resonance is reduced.
The technical scheme of the utility model is as follows:
a rear section connecting structure of a half-bearing frame comprises an upper beam frame, a lower beam frame, a left connecting plate, a right connecting plate and a shoe-shaped beam;
the upper beam frame comprises a left upper longitudinal beam, a right upper longitudinal beam and at least one upper connecting cross beam, and the left upper longitudinal beam and the right upper longitudinal beam are connected through the upper connecting cross beam; the lower beam frame comprises a left lower longitudinal beam, a right lower longitudinal beam and at least one lower connecting cross beam, and the left lower longitudinal beam and the right lower longitudinal beam are connected through the lower connecting cross beam;
the tail end of the left upper longitudinal beam and the front end of the left lower longitudinal beam are in lap joint through upper and lower wing surfaces and are connected through bolts, and the outer side of the overlapping area of the left upper longitudinal beam and the left lower longitudinal beam is connected in a reinforcing mode through the left connecting plate; the tail end of the right upper longitudinal beam and the front end of the right lower longitudinal beam are also overlapped through upper and lower wing surfaces and are connected through bolts, and the outer side of the overlapping area of the right upper longitudinal beam and the right lower longitudinal beam is reinforced and connected through the right connecting plate;
the left side connecting plate with carry out fixed connection through between the right side connecting plate ingot roof beam, just ingot roof beam also with longeron under the left side and longeron fixed connection under the right side.
Preferably, the left side connecting plate and the right side connecting plate are both provided with bending edges.
Preferably, the left side connecting plate is connected with the left side upper longitudinal beam through a bolt, and the right side connecting plate is connected with the right side upper longitudinal beam through a bolt.
Preferably, the ingot beam comprises a left bending part, a right bending part and a connecting part, the left bending part and the right bending part are connected through the connecting part, the left bending part, the lower end of the left side connecting plate and the left side lower longitudinal beam are connected through a bolt, and the right bending part, the lower end of the right side connecting plate and the right side lower longitudinal beam are also connected through a bolt.
Preferably, the left side connecting plate and the right side connecting plate both extend upwards to the auxiliary longitudinal beam in the middle section of the frame, and the upper ends of the left side connecting plate and the right side connecting plate are both provided with connecting holes.
The utility model has the beneficial effects that:
in addition, the left connecting plate and the right connecting plate both extend upwards to the middle section auxiliary longitudinal beam of the frame and are connected with the middle section auxiliary longitudinal beam of the frame, so that the integral connection strength of the rear section of the frame is improved, the integral resonance frequency of the frame is improved, and the resonance phenomenon of the whole vehicle during running is reduced; the torsional rigidity of the frame is improved by using the bent edges on the connecting plate; according to the utility model, the left side lower longitudinal beam and the right side lower longitudinal beam are extended to the position of the shoe-shaped beam, so that the shoe-shaped beam can be lapped on the left side lower longitudinal beam and the right side lower longitudinal beam, the length of the cantilever of the shoe-shaped beam is greatly reduced, and thus the overall rigidity of the engine suspension is improved, the overall rigidity of the frame is improved, and the overall resonance frequency of the frame is improved.
Drawings
The utility model is further described with reference to the following figures and examples:
FIG. 1 is a schematic front view of a prior art arrangement;
FIG. 2 is a schematic front view of the present invention;
fig. 3 is a schematic perspective view of the present invention.
Labeled as: 1. an upper beam frame; 11. a left upper stringer; 12. a right upper stringer; 13. an upper connecting beam; 2. a lower beam frame; 21. a left side lower longitudinal beam; 22. a right side lower longitudinal beam; 23. a lower connecting beam; 3. a left side connecting plate; 4. a right side connecting plate; 5. a ingot beam; 51. a left bent part; 52. a connecting portion; 6. and (6) bending edges.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 2 and 3, the rear section connecting structure of the half-load-bearing vehicle frame comprises an upper beam frame 1, a lower beam frame 2, a left connecting plate 3, a right connecting plate 4 and a shoe-shaped beam 5.
The upper beam frame 1 comprises a left upper longitudinal beam 11, a right upper longitudinal beam 12 and at least one upper connecting cross beam 13, and the left upper longitudinal beam 11 and the right upper longitudinal beam 12 are connected through the upper connecting cross beam 13; the side sill 2 includes a left side sill 21, a right side sill 22, and at least one lower connecting cross member 23, and the left side sill 21 and the right side sill 22 are connected by the lower connecting cross member 23.
The tail end of the left upper longitudinal beam 11 and the front end of the left lower longitudinal beam 21 are overlapped through the upper wing surface and the lower wing surface of the left upper longitudinal beam and are connected through bolts, and the outer side of the overlapping area of the left upper longitudinal beam 11 and the left lower longitudinal beam 21 is connected in a reinforcing mode through a left connecting plate 3; the tail end of the upper longitudinal beam 12 on the right side and the front end of the lower longitudinal beam 22 on the right side are in lap joint through upper and lower wing surfaces of the upper and lower longitudinal beams and are connected through bolts, the outer side of the overlapping area of the upper longitudinal beam 12 on the right side and the lower longitudinal beam 22 on the right side is reinforced and connected through a right connecting plate 4, the left connecting plate 3 and the right connecting plate 4 both extend upwards to the auxiliary longitudinal beam in the middle of the frame, and the upper ends of the left connecting plate 3 and the right connecting plate 4 are both provided with connecting holes. In addition, all be equipped with the limit of bending on left side connecting plate 3 and the right side connecting plate 4, the upper and lower longerons that correspond are connected to this embodiment utilization left side connecting plate 3 and right side connecting plate 4, strengthen the connection of the upper and lower longeron that corresponds, still utilize the limit of bending on the connecting plate to improve frame torsional rigidity.
Fixed connection is carried out through ingot roof beam 5 between left side connecting plate 3 and the right side connecting plate 4, and ingot roof beam 5 also with left side longeron 21 and right side longeron 22 fixed connection. Specifically, ingot beam 5 comprises left portion 51 of bending, right portion of bending and connecting portion 52, left portion 51 of bending and right portion of bending link to each other through connecting portion 52, left portion 51 of bending, connect through the bolt between the lower extreme of left side connecting plate 3 and the left side longeron 21, right portion of bending, the lower extreme of right side connecting plate 4 and the longeron 22 under the right side also connect through the bolt, in addition, adopt the bolt to be connected between left side connecting plate 3 and the left side longeron 11, also adopt the bolt to be connected between right side connecting plate 4 and the right side longeron 12.
Compared with the existing structure, the structure of the connecting plate is optimized, so that the left connecting plate 3 and the right connecting plate 4 are connected with the corresponding upper longitudinal beam and the corresponding lower longitudinal beam, the left connecting plate 3 and the right connecting plate 4 are fixedly connected through the shoe-shaped beam 5, in addition, the left connecting plate 3 and the right connecting plate 4 both extend upwards to the middle section auxiliary longitudinal beam of the frame and are connected with the middle section auxiliary longitudinal beam of the frame, the whole connecting strength of the rear section of the frame is improved, the whole resonance frequency of the frame is improved, and the resonance phenomenon of the whole vehicle during running is reduced; this embodiment extends left side longeron 21 and right side longeron 22 to ingot roof beam 5 department for ingot roof beam 5 can overlap joint in left side longeron 21 and right side longeron 22 down, reduces ingot roof beam 5 (suspension support behind the engine) cantilever length greatly, improves engine mounting global rigidity with this, thereby improves frame global rigidity, improves the whole resonant frequency of frame.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (5)
1. A rear section connecting structure of a half-bearing frame is characterized by comprising an upper beam frame, a lower beam frame, a left connecting plate, a right connecting plate and a shoe-shaped beam;
the upper beam frame comprises a left upper longitudinal beam, a right upper longitudinal beam and at least one upper connecting cross beam, and the left upper longitudinal beam and the right upper longitudinal beam are connected through the upper connecting cross beam; the lower beam frame comprises a left lower longitudinal beam, a right lower longitudinal beam and at least one lower connecting cross beam, and the left lower longitudinal beam and the right lower longitudinal beam are connected through the lower connecting cross beam;
the tail end of the left upper longitudinal beam and the front end of the left lower longitudinal beam are in lap joint through upper and lower wing surfaces and are connected through bolts, and the outer side of the overlapping area of the left upper longitudinal beam and the left lower longitudinal beam is connected in a reinforcing mode through the left connecting plate; the tail end of the right upper longitudinal beam and the front end of the right lower longitudinal beam are also overlapped through upper and lower wing surfaces and are connected through bolts, and the outer side of the overlapping area of the right upper longitudinal beam and the right lower longitudinal beam is reinforced and connected through the right connecting plate;
the left side connecting plate with carry out fixed connection through between the right side connecting plate ingot roof beam, just ingot roof beam also with longeron under the left side and longeron fixed connection under the right side.
2. The rear-section connecting structure of the half-load-bearing vehicle frame as claimed in claim 1, wherein the left connecting plate and the right connecting plate are provided with bent edges.
3. The rear half-load-bearing frame connecting structure as claimed in claim 1, wherein the left connecting plate is connected with the left upper longitudinal beam through a bolt, and the right connecting plate is connected with the right upper longitudinal beam through a bolt.
4. The rear half-load-bearing frame connecting structure according to claim 3, wherein the ingot beam is composed of a left bending portion, a right bending portion and a connecting portion, the left bending portion and the right bending portion are connected through the connecting portion, the left bending portion, the lower end of the left connecting plate and the left lower longitudinal beam are connected through bolts, and the right bending portion, the lower end of the right connecting plate and the right lower longitudinal beam are also connected through bolts.
5. The rear half-load-bearing frame connecting structure as claimed in claim 1, wherein the left connecting plate and the right connecting plate extend upward to the middle secondary longitudinal beam, and the upper ends of the left connecting plate and the right connecting plate are provided with connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027134.0U CN216070199U (en) | 2021-08-26 | 2021-08-26 | Rear section connecting structure of semi-load-bearing vehicle frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122027134.0U CN216070199U (en) | 2021-08-26 | 2021-08-26 | Rear section connecting structure of semi-load-bearing vehicle frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216070199U true CN216070199U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122027134.0U Active CN216070199U (en) | 2021-08-26 | 2021-08-26 | Rear section connecting structure of semi-load-bearing vehicle frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216070199U (en) |
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2021
- 2021-08-26 CN CN202122027134.0U patent/CN216070199U/en active Active
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