CN216916022U - High-strength and high-rigidity aluminum alloy auxiliary frame - Google Patents
High-strength and high-rigidity aluminum alloy auxiliary frame Download PDFInfo
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- CN216916022U CN216916022U CN202123183459.4U CN202123183459U CN216916022U CN 216916022 U CN216916022 U CN 216916022U CN 202123183459 U CN202123183459 U CN 202123183459U CN 216916022 U CN216916022 U CN 216916022U
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- swing arm
- front support
- arm front
- cross beam
- suspension
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 19
- 239000000725 suspension Substances 0.000 claims abstract description 54
- 238000003466 welding Methods 0.000 claims description 20
- 239000003381 stabilizer Substances 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
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Abstract
The utility model provides a high-strength and high-rigidity aluminum alloy auxiliary frame which comprises a left swing arm front support, wherein the left swing arm front support and a right swing arm front support are mirror images, and longitudinal beams are respectively arranged at the lower parts of the left swing arm front support and the right swing arm front support; a rear cross beam and a suspension cross beam are respectively arranged between the two longitudinal beams; the left swing arm front support, the right swing arm front support, the rear cross beam and the suspension cross beam form a closed loop structure; the top surface of the suspension crossbeam is provided with a suspension bracket. The whole auxiliary frame of the utility model forms a closed loop square structure through the two cross beams, the left longitudinal beam and the right longitudinal beam, the whole structure has high strength, the stress at each part is balanced, and the local stress concentration is avoided.
Description
Technical Field
The utility model relates to the technical field of automobile chassis suspension systems, in particular to an aluminum alloy auxiliary frame with high strength and high rigidity.
Background
In recent years, the demand for lightweight automobiles is higher and higher, and aluminum alloy is applied to structural members of various systems of automobiles in large quantities due to high specific strength, and particularly, the application of aluminum alloy is more and more in the field of auxiliary frames of chassis. In addition, the requirements for the safety level of automobiles are also higher and higher. The following technical drawbacks exist: 1) the in-process of turning, whole car produces lateral acceleration, and this acceleration derives from the lateral force between ground and the tire, and the lateral force passes through the wheel and the sub vehicle frame is transmitted to the mounting point before the swing arm, if mounting point department rigidity is less strong, whole car nature controlled can worsen to the fracture condition that loses efficacy appears easily, has very big safety risk. Meanwhile, if the rigidity of the mounting point of the steering engine is poor, the steering pull rod cannot immediately drive wheels to deflect after the steering wheel is turned, so that steering delay occurs, and the driving feeling of a driver is greatly influenced; 2) and because the rear suspension is short in length, only a short area is pressed in the rear suspension bracket (about 60.5mm), and if the rear suspension bracket is completely installed and welded on the suspension beam in the length of 60.5mm, the welding seam at the position is easy to cause fatigue damage.
How to increase the structural strength and how to increase the welding strength and how to avoid local stress concentration becomes a problem which needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides an aluminum alloy auxiliary frame with high strength and high rigidity, so as to solve at least one technical problem.
The technical scheme of the utility model is as follows: the aluminum alloy auxiliary frame with high strength and high rigidity comprises a left swing arm front support, wherein the left swing arm front support and a right swing arm front support are mirror images, and longitudinal beams are respectively arranged at the lower parts of the left swing arm front support and the right swing arm front support; a rear cross beam and a suspension cross beam are respectively arranged between the two longitudinal beams; the left swing arm front support, the right swing arm front support, the rear cross beam and the suspension cross beam form a closed loop structure; the top surface of the suspension crossbeam is provided with a suspension bracket.
The whole auxiliary frame of the utility model forms a closed loop square structure through the two cross beams, the left longitudinal beam and the right longitudinal beam, the whole structure has high strength, the stress at each part is balanced, and the local stress concentration is avoided.
Preferably, the suspension support comprises an E-shaped structure with a downward opening, the E-shaped structure is arranged along the length direction of the suspension cross beam, a semicircular notch is formed in the middle of the top surface of the E-shaped structure with the downward opening, a circular tube arranged along the width direction of the suspension cross beam is arranged in the semicircular notch, and two ends of the circular tube exceed the suspension cross beam. Welding flanges are arranged between the two sides of the excircle of the circular tube and the top surface of the suspension bracket.
According to the utility model, the suspension bracket is locally lengthened, and the welding flanges are additionally arranged on the two sides of the circular tube, so that the length of a welding seam between the suspension bracket and the suspension beam is effectively increased, and the rigidity, the strength and the fatigue durability of the suspension position are ensured.
Drawings
Fig. 1 is a top view of the mounting structure of the present invention.
Fig. 2 is an exploded view of the mounting structure of the upper left bracket and the front bracket of the left swing arm of the present invention.
Fig. 3 is a three-dimensional view of the mounting structure of the left swing arm front bracket, the right swing arm front bracket and the suspension cross beam of fig. 2.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a three-dimensional view of the mounting structure of the suspension cross beam and the suspension bracket of the present invention.
FIG. 6 is a front view of the mounting structure of the rear bracket and the left longitudinal beam of the left swing arm of the present invention.
In the figure: 1. a left upper bracket; 2. a left swing arm front support; 3. a sleeve is installed on the steering engine; 4. a support is arranged at the rear point of the steering engine; 5. a rear cross member; 6. a left stringer; 7. a left swing arm rear support; 8. a right swing arm rear bracket; 9. a right stringer; 10. the stabilizer bar is provided with a sleeve; 11. suspending a beam; 12. a suspension bracket; 13. a right swing arm front support; 14. a right upper bracket; 15. welding a flanging; 1201. a circular tube.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
In the first embodiment, referring to fig. 1, the aluminum alloy subframe with high strength and high rigidity comprises a left swing arm front support 2, wherein the left swing arm front support 2 and a right swing arm front support 13 are mirror images of each other, and longitudinal beams are respectively arranged at the lower parts of the left swing arm front support 2 and the right swing arm front support 13; a rear cross beam 5 and a suspension cross beam 11 are respectively arranged between the two longitudinal beams; the left swing arm front support 2, the right swing arm front support 13, the rear cross beam 5 and the suspension cross beam 11 form a closed loop structure; the top surface of the suspension beam 11 is provided with a suspension bracket 12. The whole auxiliary frame of the utility model forms a closed loop square structure through the two cross beams, the left longitudinal beam and the right longitudinal beam, the whole structure has high strength, the stress at each part is balanced, and the local stress concentration is avoided.
In the second embodiment, on the basis of the first embodiment, referring to fig. 2, U-shaped grooves are formed in the top surfaces of the left swing arm front support 2 and the right swing arm front support 13, a left upper support 1 is arranged in the U-shaped groove of the left swing arm front support 2, and a right upper support 14 is arranged in the U-shaped groove of the right swing arm front support 13; the left upper support 1 and the right upper support 14 are both T-shaped structures, one side flange of each T-shaped structure is installed in a U-shaped groove, and webs of the two T-shaped structures are in contact with the end faces of the left swing arm front support 2 and the right swing arm front support 13 which are close to one side of the web. The swing arm front bracket and the upper bracket of the utility model are welded by adopting a clasping and buckling structure, and the swing arm front bracket and the upper bracket have the advantages that: 1) self-positioning the parts with each other; 2) the length of the welding line is lengthened, and the stress of the welding line in unit length is reduced; 3) not only can the welding line bear force, but also the self structure can mutually transmit force; this structure can greatly promote joint strength between the part and promote the tired atress of welding seam, especially swing arm fore-stock position, whole car side direction and vertical atress are transmitted the sub vehicle frame through the swing arm fore-stock basically from the tire ground point, then transmit for the automobile body, and this position welding seam is in the design process, and intensity and durable have great risk, and this kind of structure has solved this problem effectively.
In the third embodiment, on the basis of the second embodiment, referring to fig. 1 and 2, C-shaped openings with forward openings are respectively arranged at the lower parts of the front support 2 of the left swing arm and the front support 13 of the right swing arm, first through holes are arranged on the top surfaces of the two C-shaped openings, the first through holes penetrate through the end plates at two sides of the C-shaped openings, and steering gear mounting sleeves 3 are arranged in the first through holes. The suspension beam is designed in the middle of the front support of the left swing arm and the right swing arm, so that the lateral rigidity and the strength of a front mounting point of the swing arm and a steering engine (a steering engine sleeve is welded on the front support of the swing arm) are greatly enhanced. During the turning process, the whole vehicle generates lateral acceleration, the acceleration is derived from the lateral force between the ground and the tire, the lateral force is transmitted to the auxiliary frame through the front mounting point of the wheel and the swing arm, the rigidity of the mounting point is strong, the controllability of the whole vehicle is good, and the condition of failure and cracking cannot occur; meanwhile, the rigidity of the mounting point of the steering engine is strong, and after a steering wheel is turned, the steering pull rod can immediately drive wheels to deflect, so that steering delay is avoided, and the driving feeling of a driver is greatly improved.
In the fourth embodiment, on the basis of the third embodiment, referring to fig. 1, 2 and 4, the two longitudinal beams correspond to the left longitudinal beam 6 and the right longitudinal beam 9 respectively, the left longitudinal beam 6 and the right longitudinal beam 9 are located in the C-shaped opening close to one side of the left longitudinal beam and the right longitudinal beam respectively, and the two first through holes penetrate through the left longitudinal beam 6 and the right longitudinal beam 9 respectively. According to the utility model, the longitudinal beam and the swing arm front support are connected in a wrapping manner, so that the length of a welding seam is lengthened, welding is carried out in different directions, the front point of the swing arm is effectively improved, the longitudinal rigidity of a mounting point of a steering engine is improved, and meanwhile, the fatigue life of the auxiliary frame under the longitudinal force (the longitudinal force generated when the whole vehicle is accelerated, braked or passes through a pit) is ensured.
On the basis of the fourth embodiment, referring to fig. 1 and 6, a left swing arm rear bracket 7 is arranged on one side of the left longitudinal beam 6 away from the rear cross beam 5, a right swing arm rear bracket 8 is arranged on one side of the right longitudinal beam 9 away from the rear cross beam 5, and the left swing arm rear bracket 7 is arranged; the left swing arm rear support 7 and the right swing arm rear support 8 are respectively provided with a transverse U-shaped opening, the left longitudinal beam 6 is positioned in the U-shaped opening of the left swing arm rear support 7, and the right longitudinal beam 9 is positioned in the U-shaped opening of the right swing arm rear support 8. The swing arm rear support and the longitudinal beam are welded together in a U-shaped splicing mode, and meanwhile, the left side and the right side are additionally provided with the cross beam (rear cross beam), so that the Y-direction rigidity of a swing arm rear point and a stabilizer bar mounting point is improved, the U-shaped splicing welding is long in length and multiple in welding dimension, the stress of a single point is transferred to all directions, and the fatigue strength of the swing arm rear point is guaranteed.
Sixth embodiment, on the basis of fifth embodiment, referring to fig. 1, vertically arranged second through holes are provided on the left longitudinal beam 6 and the right longitudinal beam 9, stabilizer bar mounting sleeves 10 are provided in the second through holes, a first semicircular groove is provided on one side of the left longitudinal beam 6 close to the left swing arm rear bracket 7 and one side of the right longitudinal beam 9 close to the right swing arm rear bracket 8, second semicircular grooves are provided on the left swing arm rear bracket 7 and the right swing arm rear bracket 8, a third through hole is formed by splicing the second semicircular grooves and the first semicircular grooves, and a stabilizer bar mounting sleeve 10 is also provided in the third through hole. The left swing arm rear support is welded with the left longitudinal beam through the two stabilizer bar mounting sleeves, the right swing arm rear support is welded with the right longitudinal beam through the two stabilizer bar mounting sleeves, the welding length is long, and the fatigue strength of the mounting position of the stabilizer bar is guaranteed.
Seventhly, on the basis of the first embodiment, referring to fig. 1, 3 and 5, the suspension support 12 includes an E-shaped structure with a downward opening, the E-shaped structure is arranged along the length direction of the suspension beam 11, a semicircular notch is formed in the middle of the top surface of the E-shaped structure with the downward opening, a circular tube 1201 arranged along the width direction of the suspension beam 11 is arranged in the semicircular notch, two ends of the circular tube 1201 both exceed the suspension beam 11, and a chamfered notch is formed in the upper portion of one side, away from the suspension beam 11, of the circular tube 1201. Welding flanges 15 are arranged between the two sides of the excircle of the circular tube 1201 and the top surface of the suspension bracket 12. According to the utility model, the suspension bracket is locally lengthened, and the welding flanges are additionally arranged on the two sides of the circular tube, so that the length of a welding seam between the suspension bracket and the suspension beam is effectively increased, and the rigidity, the strength and the fatigue durability of the suspension position are ensured.
In the eighth embodiment, on the basis of the seventh embodiment, a steering gear rear point mounting bracket 4 is arranged between the rear cross beam 5 and the suspension cross beam 11, and one side end face of the steering gear rear point mounting bracket 4 is connected with the left longitudinal beam 6. The rear point bracket of the steering engine is welded between the front and rear cross beams and the longitudinal beam, the structure strengthens the connection of the front and rear cross beams, avoids local stress concentration, and ensures the lateral rigidity and the longitudinal rigidity of the rear point of the steering engine.
Ninth embodiment, on the basis of the first embodiment, referring to fig. 1, the closed loop structure is an isosceles trapezoid structure, and the length of the suspension beam 11 is greater than that of the rear beam 5. The utility model adopts an isosceles trapezoid structure, the whole structure is stable, and the connection is more reliable.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides an aluminum alloy sub vehicle frame of high strength and high rigidity, includes left swing arm fore-stock (2), its characterized in that: the left swing arm front support (2) and the right swing arm front support (13) are mirror images, and longitudinal beams are respectively arranged at the lower parts of the left swing arm front support (2) and the right swing arm front support (13); a rear cross beam (5) and a suspension cross beam (11) are respectively arranged between the two longitudinal beams; the left swing arm front support (2), the right swing arm front support (13), the rear cross beam (5) and the suspension cross beam (11) form a closed loop structure; the top surface of the suspension beam (11) is provided with a suspension bracket (12); the suspension bracket (12) comprises a downward-opening E-shaped structure which is arranged along the length direction of the suspension cross beam (11).
2. The high strength and high stiffness aluminum alloy subframe of claim 1 wherein: the top surfaces of the left swing arm front support (2) and the right swing arm front support (13) are provided with U-shaped grooves, a left upper support (1) is arranged in the U-shaped groove of the left swing arm front support (2), and a right upper support (14) is arranged in the U-shaped groove of the right swing arm front support (13).
3. The high strength and high stiffness aluminum alloy subframe as set forth in claim 2 wherein: the lower parts of the left swing arm front support (2) and the right swing arm front support (13) are respectively provided with a C-shaped opening with a forward opening, the top surfaces of the two C-shaped openings are provided with first through holes, the first through holes penetrate through end plates on two sides of the C-shaped openings, and a steering engine mounting sleeve (3) is arranged in the first through holes.
4. The high strength and high stiffness aluminum alloy subframe as set forth in claim 3 wherein: the two longitudinal beams respectively correspond to the left longitudinal beam (6) and the right longitudinal beam (9), the left longitudinal beam (6) and the right longitudinal beam (9) are respectively positioned in a C-shaped opening close to one side of the C-shaped opening, and the two first through holes respectively penetrate through the left longitudinal beam (6) and the right longitudinal beam (9).
5. The high strength and high stiffness aluminum alloy subframe of claim 4 wherein: a left swing arm rear support (7) is arranged on one side, away from the rear cross beam (5), of the left longitudinal beam (6), and a right swing arm rear support (8) is arranged on one side, away from the rear cross beam (5), of the right longitudinal beam (9); the left swing arm rear support (7) and the right swing arm rear support (8) are respectively provided with a transverse U-shaped opening, the left longitudinal beam (6) is positioned in the U-shaped opening of the left swing arm rear support (7), and the right longitudinal beam (9) is positioned in the U-shaped opening of the right swing arm rear support (8).
6. The high strength and high stiffness aluminum alloy subframe of claim 5 wherein: and vertically arranged second through holes are formed in the left longitudinal beam (6) and the right longitudinal beam (9), and stabilizer bar mounting sleeves (10) are arranged in the second through holes.
7. The high strength and high stiffness aluminum alloy subframe of claim 1 wherein: the middle part of the top surface of the E-shaped structure with the downward opening is provided with a semicircular notch, a round pipe (1201) arranged along the width direction of the suspension cross beam (11) is arranged in the semicircular notch, and two ends of the round pipe (1201) exceed the suspension cross beam (11).
8. The high strength and high stiffness aluminum alloy subframe as set forth in claim 7, wherein: welding flanges (15) are arranged between the two sides of the excircle of the circular tube (1201) and the top surface of the suspension bracket (12).
9. The high strength and high stiffness aluminum alloy subframe of claim 7 wherein: a rear point mounting bracket (4) of the steering engine is arranged between the rear cross beam (5) and the suspension cross beam (11), and one side end face of the rear point mounting bracket (4) of the steering engine is connected with the left longitudinal beam (6).
10. The high strength and high stiffness aluminum alloy subframe of claim 1 wherein: the closed loop structure is an isosceles trapezoid structure, and the length of the suspension cross beam (11) is greater than that of the rear cross beam (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183459.4U CN216916022U (en) | 2021-12-17 | 2021-12-17 | High-strength and high-rigidity aluminum alloy auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183459.4U CN216916022U (en) | 2021-12-17 | 2021-12-17 | High-strength and high-rigidity aluminum alloy auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216916022U true CN216916022U (en) | 2022-07-08 |
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ID=82251714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123183459.4U Active CN216916022U (en) | 2021-12-17 | 2021-12-17 | High-strength and high-rigidity aluminum alloy auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216916022U (en) |
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2021
- 2021-12-17 CN CN202123183459.4U patent/CN216916022U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230529 Address after: No. 1, Shitan Town, Zengcheng, Guangzhou, Guangdong Province, 510700 Patentee after: Guangzhou Honda Research & Development Co.,Ltd. Address before: Building 1, No. 168, xinsiping Road, Lingang New Area, free trade pilot zone, Pudong New Area, Shanghai Patentee before: Shanghai Zesheng Automobile Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Mingqiang Inventor after: Zhang Xingzhuang Inventor after: Li Dong Inventor after: Luo Shibing Inventor after: Yao Lijun Inventor after: Wan Guangqiang Inventor after: Zhou Weilin Inventor after: Yu Yajing Inventor after: Yang Zhen Inventor after: Wang Lizhong Inventor after: Liu Yu Inventor before: Luo Shibing Inventor before: Li Dong Inventor before: Yao Lijun Inventor before: Wan Guangqiang Inventor before: Zhou Weilin Inventor before: Yu Yajing Inventor before: Yang Zhen Inventor before: Wang Lizhong Inventor before: Liu Yu Inventor before: Zhang Xingzhuang |
|
| CB03 | Change of inventor or designer information |