CN209757260U - auxiliary frame structure of passenger car - Google Patents
auxiliary frame structure of passenger car Download PDFInfo
- Publication number
- CN209757260U CN209757260U CN201920237221.9U CN201920237221U CN209757260U CN 209757260 U CN209757260 U CN 209757260U CN 201920237221 U CN201920237221 U CN 201920237221U CN 209757260 U CN209757260 U CN 209757260U
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- cross beam
- longitudinal beam
- energy
- rear cross
- absorbing
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Abstract
The utility model discloses a passenger car auxiliary frame structure, the key points of the technical proposal are that a tubular beam type auxiliary frame structure is adopted, the end part position of the end part of a front beam connected with a left longitudinal beam is provided with a left extension part of the front beam, the end part of the front beam connected with a right longitudinal beam is provided with a right extension part of the front beam, the end part of a rear beam connected with the left longitudinal beam is provided with a left extension part of the rear beam, the end part of the rear beam connected with the right longitudinal beam is provided with a right extension part of the rear; reinforcing ribs are arranged at the joints of the rear cross beam and the left longitudinal beam and the joints of the rear cross beam and the right longitudinal beam, and an energy-absorbing longitudinal beam is arranged between the front cross beam 1 and the front U-shaped cross beam; and holes are symmetrically formed in low-stress areas such as the inner side curved surface and the lower half curved surface of the left longitudinal beam and the right longitudinal beam. The effects of effectively reducing the process cost, improving the collision energy absorption safety performance, greatly reducing the structure weight and reducing the production cost are achieved.
Description
Technical Field
The utility model relates to a passenger car chassis technical field, more specifically say, it relates to a passenger car sub vehicle frame structure.
Background
The subframe is an important component of the chassis structure of a motor vehicle. Generally, a sheet metal stamping type subframe is connected with a vehicle body through bolts, bushings and the like. The new energy automobile is limited by a power battery, the endurance mileage is limited, and the weight of the whole automobile is strictly controlled. Generally, the auxiliary frame is a metal plate stamping type auxiliary frame, the auxiliary frame is complex in structure, complex in stamping process, high in mold cost and heavy in structure, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a tubular beam formula sub vehicle frame structure, it has can effectively reduce the technological requirement, improves the security performance, reduces structure weight, reduction in production cost's advantage by a wide margin.
In order to achieve the above purpose, the utility model provides a following technical scheme:
An auxiliary frame structure of a passenger vehicle comprises a front cross beam, a left longitudinal beam, a rear cross beam, a right longitudinal beam and a front U-shaped cross beam; the front cross beam, the left longitudinal beam, the rear cross beam, the right longitudinal beam and the front U-shaped cross beam main body are connected through welding to form a main body frame, the left longitudinal beam and the right longitudinal beam are located between the front cross beam and the rear cross beam, and two ends of the left longitudinal beam and the right longitudinal beam are fixedly connected with the front cross beam and the rear cross beam respectively to form a square structure; the end part of one end, connected with the left longitudinal beam, of the front cross beam is provided with a left extension part of the front cross beam, the end part, connected with the right longitudinal beam, of the front cross beam is provided with a right extension part of the front cross beam, the end part, connected with the left longitudinal beam, of the rear cross beam is provided with a left extension part of the rear cross beam, the end part, connected with the right longitudinal beam, of the rear cross beam is provided with a right extension part of the rear cross beam, and the; reinforcing ribs are arranged at the joints of the rear cross beam and the left longitudinal beam and the joints of the rear cross beam and the right longitudinal beam, and an energy-absorbing longitudinal beam is arranged between the front cross beam and the front U-shaped cross beam; holes are symmetrically formed in the inner side curved surface and the lower half curved surface of the left longitudinal beam and the right longitudinal beam.
Through adopting above-mentioned technical scheme, adopt tubular beam formula sub vehicle frame structure, can improve sub vehicle frame body structural rigidity and stability, promote the travelling comfort. Through the holes formed in the left and right longitudinal beams in the low stress area, on one hand, sewage can be discharged, the structure weight is effectively reduced, on the other hand, when collision occurs, the auxiliary frame can be effectively collapsed and absorbed energy, and the collision safety performance is improved;
Further, as a preferred scheme, a plurality of assembly bodies are arranged on the front U-shaped cross beam, and the assembly bodies are fixedly connected with the front U-shaped cross beam in a welding mode.
Further, as a preferable scheme, the top ends of the left extending part and the right extending part of the rear cross beam are provided with a protruding part at the outer side, and the cross-sectional area of the top ends of the extending parts is smaller than that of the inner side.
Further, as a preferred scheme, the front cross beam, the rear cross beam, the front U-shaped cross beam and the energy-absorbing longitudinal beam are hollow round tubes, the front cross beam and the rear cross beam are hollow round tubes with the same cross section, the front U-shaped cross beam and the energy-absorbing longitudinal beam have the same cross section, and the cross sections of the front U-shaped cross beam and the energy-absorbing longitudinal beam are smaller than the cross sections of the front cross beam and the rear cross beam.
Furthermore, as a preferred scheme, the energy-absorbing longitudinal beam is positioned between the front U-shaped cross beam and the front cross beam, one end of the energy-absorbing longitudinal beam is fixedly connected with the front U-shaped cross beam, the other end of the energy-absorbing longitudinal beam is fixedly connected with the front cross beam, and the number and the structure of the energy-absorbing longitudinal beams can be actually adjusted according to collision safety requirements.
Furthermore, as an optimal scheme, a left swing arm mounting front support, a steering pull rod left mounting support and a left swing arm mounting rear support are arranged on the left longitudinal beam, and the left swing arm mounting front support, the steering pull rod left mounting support and the left swing arm mounting rear support are arranged on the left longitudinal beam in a welding mode.
Further, as a preferred scheme, a front suspension mounting bracket is arranged on the front cross beam, a right suspension bracket is arranged at the front end of the right longitudinal beam, and a rear suspension mounting bracket is arranged on the rear cross beam; the front suspension mounting bracket is arranged on the front cross beam in a welding mode, the rear suspension mounting bracket is arranged on the rear cross beam in a welding mode, and the right suspension mounting bracket is arranged on the right longitudinal beam in a welding mode.
Preferably, the passenger car subframe is made of a profile.
Further, as a preferred scheme, the auxiliary chassis part structures, such as a power assembly suspension, a swing arm, a stabilizer bar, a steering gear mounting bracket and the like, are actually arranged according to design requirements.
Furthermore, as the preferred scheme, the number of the mounting bolts of the mounting rear points of the auxiliary frame and the vehicle body can be actually adjusted according to the requirement.
To sum up, the utility model discloses following beneficial effect has:
the utility model provides a pair of tubular beam formula sub vehicle frame structure, relative panel beating punching press formula sub vehicle frame can effectively reduce the technological requirement, also can reduce structure weight by a wide margin. Meanwhile, the structure is compact, the stress is reasonable, the through holes are formed in the low-stress area, on one hand, when collision occurs, the through holes, the front U-shaped cross beam and the energy-absorbing longitudinal beam act together to enable the auxiliary frame to effectively collapse and absorb energy, and the collision safety performance is improved; on the other hand, the structure weight is further reduced, and meanwhile, the requirement on the punching process is reduced by the tubular beam structure, so that the production cost is reduced.
Drawings
Fig. 1 is a schematic view of a subframe structure of a passenger vehicle.
In the figure: 1. a front cross member; 2. a left stringer; 3. a rear cross member; 4. a right stringer; 5. a front U-shaped cross beam; 11. a front suspension mounting bracket; 21. the left swing arm is provided with a front bracket; 22. a left steering pull rod mounting bracket; 23. the left swing arm is provided with a rear bracket; 31. a rear suspension mounting bracket; 41. a right suspension bracket; 42. an aperture; 51. an energy-absorbing stringer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An auxiliary frame structure of a passenger vehicle comprises a front cross beam 1, a left longitudinal beam 2, a rear cross beam 3, a right longitudinal beam 4 and a front U-shaped cross beam 5; the main bodies of the front cross beam 1, the left longitudinal beam 2, the rear cross beam 3, the right longitudinal beam 4 and the front U-shaped cross beam 5 are connected through welding to form a main body frame, the left longitudinal beam 2 and the right longitudinal beam 4 are positioned between the front cross beam 1 and the rear cross beam 3, and two ends of the left longitudinal beam 2 and the right longitudinal beam 4 are fixedly connected with the front cross beam 1 and the rear cross beam 3 respectively to form a square structure; the end part of one end, connected with the left longitudinal beam 2, of the front cross beam 1 is provided with a left extending part of the front cross beam 1, the end part of one end, connected with the right longitudinal beam 4, of the front cross beam 1 is provided with a right extending part of the front cross beam 1, the end part of one end, connected with the left longitudinal beam 2, of the rear cross beam 3 is provided with a left extending part of the rear cross beam 3, the end part, connected with the right longitudinal beam 4, of the rear cross beam 3 is provided with a right extending part of the rear; reinforcing ribs are arranged at the joints of the rear cross beam 3 and the left longitudinal beam 2 and the joints of the rear cross beam 3 and the right longitudinal beam 4, and an energy-absorbing longitudinal beam 51 is arranged between the front cross beam 1 and the front U-shaped cross beam 5; holes 42 are symmetrically formed in low-stress areas such as the inner side curved surface and the lower half curved surface of the left longitudinal beam 2 and the right longitudinal beam 4.
the invention adopts a tubular beam type auxiliary frame structure and is welded and formed; the tubular beam type auxiliary frame can not only improve the integral rigidity of the auxiliary body, reduce the wheel bounce caused by the deformation of the body, improve the stability and the grip capacity, but also effectively filter the jolt from the ground and improve the comfort. The front cross beam 1, the rear cross beam 3, the left longitudinal beam 2 and the right longitudinal beam 4 are welded and formed, and the auxiliary frame has the advantages of simple structure, short forming time, consistent performance, no connection defect, high precision and the like.
According to the requirement of collision design, holes 42 are formed in the inner side curved surface and the lower semi-curved surface of the left longitudinal beam 3 and the right longitudinal beam 4 in a low stress area, so that on one hand, sewage can be discharged, the weight of the structure is effectively reduced, on the other hand, when collision occurs, the auxiliary frame can be effectively collapsed and energy absorbed, and the collision safety performance is improved; according to the design requirement, the chassis connecting piece structure comprises a power assembly suspension, a control arm, a stabilizer bar, a steering gear mounting bracket and the like, so that the structure is compact.
The auxiliary frame main body comprises a front cross beam 1, a left longitudinal beam 2, a rear cross beam 3, a right longitudinal beam 4 and a front U-shaped cross beam 5 which are all connected through welding. Wherein left longeron 2, right longeron 4 is located between front beam 1 and the rear beam 3, and left longeron 2, the both ends of right longeron 4 are equallyd divide do not with front beam 1 and rear beam 3 fixed connection, constitute a mouthful style of calligraphy structure, appearance structural design through mouthful style of calligraphy, make sub vehicle frame can obtain outstanding torsion and bending mode behind the car, and section bar damping performance is good, therefore, welded forming's section bar sub vehicle frame structure, can filter the tiny vibrations that ground transmission comes effectively, external impact force is effectively alleviated, improve the travelling comfort when putting in order the car and traveling, and compare in traditional steel car sub vehicle frame, it is obvious to subtract heavy effect.
The auxiliary frame is characterized in that the middle parts of the auxiliary frame formed by connecting the front cross beam 1, the rear cross beam 3, the left longitudinal beam 2 and the right longitudinal beam 4 are cavity parts, the front cross beam 1, the rear cross beam 3, the front U-shaped cross beam 5 and the energy-absorbing longitudinal beam 51 are hollow round tubes, the front cross beam 1 and the rear cross beam 3 are hollow round tubes with the same cross section, the front U-shaped cross beam 5 and the energy-absorbing longitudinal beam 51 have the same cross section, and the cross sections of the front U-shaped cross beam 5 and the energy-absorbing longitudinal beam 51 are smaller than the cross sections of the front cross. The front cross beam 1, the rear cross beam 3, the front U-shaped beam and the energy-absorbing longitudinal beam 51 adopt the same specification, so that the machining is convenient, the working procedures are reduced, and the cost is reduced.
Above-mentioned structure through set up cavity portion at sub vehicle frame middle part behind the car, cavity portion can compromise intensity, whole rigidity performance again when satisfying passenger car sub vehicle frame and subtract heavy, improves whole car reliability, and cavity portion and square structure cooperation for sub vehicle frame can obtain outstanding torsion and bending mode, and safe and reliable when guaranteeing that whole car traveles. When collision occurs, the rigidity of the rear auxiliary frame of the automobile can be effectively improved, impact force can be absorbed, and the reliability is high.
The front cross beam is characterized in that a left extending portion of the front cross beam 1 is arranged at the end portion of one end, connected with the left longitudinal beam 2, of the front cross beam 1, a right extending portion of the front cross beam 1 is arranged at the end portion of one end, connected with the right longitudinal beam 4, of the front cross beam 1, a left extending portion of the rear cross beam 3 is arranged at the end portion of one end, connected with the left longitudinal beam 2, of the rear cross beam 3, and a right extending portion of the rear cross beam 3 is arranged at the. The extending part is also provided with an upward bulge so that the auxiliary frame can be conveniently installed on the vehicle body.
Through the arrangement that the front suspension mounting bracket 11 is arranged on the front cross beam 1 and the rear suspension mounting bracket 31 is arranged on the rear cross beam 3, corresponding parts can be mounted on the auxiliary frame, the connection reliability of the corresponding parts is ensured, and the corresponding parts are welded on the front cross beam 3 and the rear cross beam 3. The connection between the parts and the rear auxiliary frame is reliable. A left swing arm mounting front support 21, a steering pull rod left mounting support 22 and a left swing arm mounting rear support 23 are arranged on the left longitudinal beam 2, and a right suspension support 41 is arranged at the front end of the right longitudinal beam 4. The steering pull rod mounting bracket is arranged on the left longitudinal beam 2 and consists of two fixedly connected supporting pieces, the supporting pieces are narrow in upper ends and wide in lower ends, through holes 42 are formed in the upper portions of the supporting pieces, the through holes 42 are located in the vertical right positions, and the through holes are used for mounting the steering pull rod through screws. Above-mentioned structure, left swing arm installation fore-stock 21 sets up on left longeron 2 through welding the dress mode, and right swing arm installing support sets up on right longeron 4 through welding the dress mode, and be connected reliably between the sub vehicle frame.
Aiming at the problems of large weight, more assembly parts, long assembly beat, inconsistent composition and performance of dissimilar alloys and difficult control of precision of the auxiliary frame of the passenger vehicle in the prior automobile manufacturing technology, the auxiliary frame of the passenger vehicle has the advantages of simple structure, low manufacturing cost, light weight, short forming time, consistent performance, no connection defect, high precision and the like, can effectively absorb external impact force when collision occurs, and can ensure the personal safety of drivers and passengers when the whole vehicle is used.
The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.
Claims (9)
1. An auxiliary frame structure of a passenger vehicle comprises a front cross beam (1), a left longitudinal beam (2), a rear cross beam (3), a right longitudinal beam (4) and a front U-shaped cross beam (5); the main bodies of the front cross beam (1), the left longitudinal beam (2), the rear cross beam (3), the right longitudinal beam (4) and the front U-shaped cross beam (5) are connected through welding to form a main body frame, the left longitudinal beam (2) and the right longitudinal beam (4) are positioned between the front cross beam (1) and the rear cross beam (3), and two ends of the left longitudinal beam (2) and the right longitudinal beam (4) are fixedly connected with the front cross beam (1) and the rear cross beam (3) respectively to form a square-shaped structure; the method is characterized in that: the end part of one end, connected with the left longitudinal beam (2), of the front cross beam (1) is provided with a left extending part of the front cross beam (1), the end part, connected with the right longitudinal beam (4), of the front cross beam (1) is provided with a right extending part of the front cross beam (1), the end part, connected with the left longitudinal beam (2), of the rear cross beam (3) is provided with a left extending part of the rear cross beam (3), the end part, connected with the right longitudinal beam (4), of the rear cross beam (3) is provided with a right extending part of the rear cross beam (3), and the extending parts are provided with assembly points; reinforcing ribs are arranged at the joints of the rear cross beam (3) and the left longitudinal beam (2) and the rear cross beam (3) and the right longitudinal beam (4), and an energy-absorbing longitudinal beam (51) is arranged between the front cross beam (1) and the front U-shaped cross beam (5); and holes (42) are symmetrically formed in low-stress areas such as the inner side curved surface and the lower half curved surface of the left longitudinal beam (2) and the right longitudinal beam (4).
2. The passenger vehicle subframe structure of claim 1, wherein: a plurality of assembly bodies are arranged on the front U-shaped cross beam (5), and the assembly bodies are fixedly connected with the front U-shaped cross beam (5) in a welding mode.
3. The passenger vehicle subframe structure of claim 1, wherein: the outer sides of the top ends of the left extension part and the right extension part of the rear cross beam (3) are provided with protruding parts, and the cross sectional area of the top ends of the extension parts is smaller than that of the inner sides.
4. The passenger vehicle subframe structure of claim 1, wherein: the energy-absorbing beam is characterized in that the front cross beam (1), the rear cross beam (3), the front U-shaped cross beam (5) and the energy-absorbing longitudinal beam (51) are hollow round tubes, the front cross beam (1) and the rear cross beam (3) are hollow round tubes with the same cross section, the front U-shaped cross beam (5) and the energy-absorbing longitudinal beam (51) have the same cross section, and the cross sections of the front U-shaped cross beam (5) and the energy-absorbing longitudinal beam (51) are smaller than the cross sections of the front cross beam (1) and the rear cross beam (3).
5. The passenger vehicle subframe structure of claim 4, wherein: the energy-absorbing longitudinal beam (51) is positioned between the front U-shaped cross beam (5) and the front cross beam (1), one end of the energy-absorbing longitudinal beam (51) is fixedly connected with the front U-shaped cross beam (5), and the other end of the energy-absorbing longitudinal beam is fixedly connected with the front cross beam (1).
6. The passenger vehicle subframe structure of claim 5, wherein: the number of the energy-absorbing longitudinal beams (51) is arranged according to the requirement of collision safety performance.
7. The passenger vehicle subframe structure of claim 1, wherein: the left longitudinal beam (2) is provided with a left swing arm mounting front support (21), a steering pull rod left mounting support (22) and a left swing arm mounting rear support (23), and the left swing arm mounting front support (21), the steering pull rod left mounting support (22) and the left swing arm mounting rear support (23) are arranged on the left longitudinal beam (2) in a welding mode.
8. The passenger vehicle subframe structure of claim 1, wherein: a front suspension mounting bracket (11) is arranged on the front cross beam (1), a right suspension bracket (41) is arranged at the front end of the right longitudinal beam (4), and a rear suspension mounting bracket (31) is arranged on the rear cross beam (3); the front suspension mounting bracket (11) is arranged on the front cross beam (1) in a welding mode, the rear suspension mounting bracket (31) is arranged on the rear cross beam (3) in a welding mode, and the right suspension bracket (41) is arranged on the right longitudinal beam (4) in a welding mode.
9. A passenger vehicle subframe structure according to any one of claims 1 to 8, wherein: the auxiliary frame of the passenger car is made of a section bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237221.9U CN209757260U (en) | 2019-02-26 | 2019-02-26 | auxiliary frame structure of passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920237221.9U CN209757260U (en) | 2019-02-26 | 2019-02-26 | auxiliary frame structure of passenger car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209757260U true CN209757260U (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920237221.9U Expired - Fee Related CN209757260U (en) | 2019-02-26 | 2019-02-26 | auxiliary frame structure of passenger car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209757260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111891219A (en) * | 2020-07-27 | 2020-11-06 | 东风汽车股份有限公司 | Outer connected system of many suspensions on electric automobile |
| CN113120083A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Auxiliary frame and automobile |
-
2019
- 2019-02-26 CN CN201920237221.9U patent/CN209757260U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120083A (en) * | 2019-12-31 | 2021-07-16 | 比亚迪股份有限公司 | Auxiliary frame and automobile |
| CN111891219A (en) * | 2020-07-27 | 2020-11-06 | 东风汽车股份有限公司 | Outer connected system of many suspensions on electric automobile |
| CN111891219B (en) * | 2020-07-27 | 2021-08-06 | 东风汽车股份有限公司 | Outer connected system of many suspensions on electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20210226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |