阅读说明：本技术 一种新型铝合金副车架 (Novel aluminum alloy auxiliary frame ) 是由 白甫停 江翁 王飞 余进超 于 2020-12-26 设计创作，主要内容包括：本发明公开了一种新型铝合金副车架,包括前横梁、后横梁、左纵梁和右纵梁,所述前横梁、后横梁、左纵梁和右纵梁均采用铝合金型材挤压成形,形成的中空管状结构；所述副车架还包括左前安装支架、右前安装支架、左后安装支架和右后安装支架；所述左前安装支架、右前安装支架、左后安装支架和右后安装支架均采用铝合金铸造而成；本发明的一种新型铝合金副车架,通过挤压成形的前横梁、后横梁、左纵梁和右纵梁,质量轻、成品率高,成本低,焊接易于控制；而本发明的左前安装支架、右前安装支架、左后安装支架和右后安装支架需要与车身或底盘其他部位进行连接,结构变化较为复杂,通过铸造成形的铸造件,有利于提高其机械性能。(The invention discloses a novel aluminum alloy auxiliary frame which comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, wherein the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are all formed by extruding aluminum alloy sections to form a hollow tubular structure; the auxiliary frame also comprises a left front mounting bracket, a right front mounting bracket, a left rear mounting bracket and a right rear mounting bracket; the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket are all cast by aluminum alloy; according to the novel aluminum alloy auxiliary frame, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are formed through extrusion, so that the novel aluminum alloy auxiliary frame is light in weight, high in yield, low in cost and easy to control welding; the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket of the invention need to be connected with other parts of the vehicle body or the chassis, the structural change is more complex, and the mechanical property of the cast part is improved by casting.)

1. The utility model provides a novel aluminum alloy sub vehicle frame, includes front beam (1), rear frame (2), left longeron (3) and right longeron (4), its characterized in that:

the front cross beam (1), the rear cross beam (2), the left longitudinal beam (3) and the right longitudinal beam (4) are all formed by adopting aluminum alloy profiles in an extrusion mode to form a hollow tubular structure;

the auxiliary frame further comprises a left front mounting bracket (5), a right front mounting bracket (6), a left rear mounting bracket (7) and a right rear mounting bracket (8); the left front mounting bracket (5), the right front mounting bracket (6), the left rear mounting bracket (7) and the right rear mounting bracket (8) are all cast by aluminum alloy; the two ends of the left front mounting bracket (5), the right front mounting bracket (6), the left rear mounting bracket (7) and the right rear mounting bracket (8) are respectively provided with an assembly groove (9);

two ends of the front cross beam (1) are respectively installed in the assembling grooves (9) of the left front installing support (5) and the right front installing support (6) and are connected through welding; two ends of the rear cross beam (2) are respectively installed in the assembly grooves (9) of the left rear installation bracket (7) and the right rear installation bracket (8) and are connected through welding; two ends of the left longitudinal beam (3) are respectively installed in the assembling grooves (9) of the left front installing support (5) and the left rear installing support (7) and are connected through welding; and two ends of the right longitudinal beam (4) are respectively installed in the assembling grooves (9) of the right front installing support (6) and the right rear installing support (8) and are connected through welding.

2. The novel aluminum alloy subframe as claimed in claim 1, wherein: the left front mounting bracket (5) is provided with a left bushing mounting hole (10), and a left bushing (11) is mounted in the left bushing mounting hole (10); and the right front mounting bracket (6) is provided with a right bushing mounting hole (12), and a right bushing (13) is mounted in the right bushing mounting hole (12).

3. The novel aluminum alloy subframe as claimed in claim 1, wherein: installing support (5) are equipped with first mounting hole (14) that are used for with the body coupling before a left side, installing support (6) are equipped with second mounting hole (15) that are used for with the body coupling before the right side, installing support (7) are installed after a left side be equipped with be used for with body coupling's third installation (16), installing support (8) are equipped with fourth mounting hole (17) that are used for with the body coupling after the right side.

4. The novel aluminum alloy subframe as claimed in claim 1, wherein: the left longitudinal beam (3) is provided with a left front swing arm upper mounting bracket (18); the rear cross beam (2) is provided with a mounting bracket (19) on the right front swing arm.

5. The novel aluminum alloy subframe as claimed in claim 1, wherein: the lower part of the left front mounting bracket (5) is provided with a left front swing arm lower mounting bracket (20); and a lower right front swing arm mounting bracket (21) is arranged at the lower part of the right front mounting bracket (6).

6. The novel aluminum alloy subframe as claimed in claim 1, wherein: the upper part of the left rear mounting bracket (7) is provided with a left rear swing arm upper mounting bracket (22), and the lower part of the left rear mounting bracket (7) is provided with a left rear swing arm lower mounting bracket (23); the upper part of the right rear mounting bracket (8) is provided with a right rear swing arm upper mounting bracket (24), and the lower part is provided with a right rear swing arm lower mounting bracket (25).

7. The novel aluminum alloy subframe as claimed in claim 1, wherein: the left front mounting bracket (5) and the right front mounting bracket (6) are respectively provided with a first grid structure (26), a plurality of first lightening holes (27) are formed in the first grid structure (26), and the first lightening holes (27) are hollow holes with different shapes.

8. The novel aluminum alloy subframe as claimed in claim 1, wherein: the left rear mounting bracket (7) and the right rear mounting bracket (8) are respectively provided with a second grid structure (28), and a plurality of second lightening holes (29) which are circular are formed in the second grid structure (28).

Technical Field

The invention relates to the field of automobile manufacturing, in particular to a novel aluminum alloy auxiliary frame.

Background

At present, the global automobile output and the holding quantity are continuously increased, and the requirement on the safety of the automobile is higher and higher. The auxiliary frame is an important component of the current mainstream car chassis, the structural form, the rigidity and the strength of the auxiliary frame have great influence on the durability, the comfort and the controllability of the whole car and are important bases for measuring the design level of the car chassis, so that the research on the structural design and the optimization technology of the auxiliary frame of the car is concerned. At present, the auxiliary frame mainly adopts a steel stamping welding auxiliary frame, the connecting structure of the steel stamping welding auxiliary frame generally adopts a stamping welding support form and is connected with an auxiliary frame main body through welding, but the auxiliary frame of the structure has the defects of heavier weight, more parts and supports, more and long welding seams, various processes, difficult quality control and the like.

Based on the situation, the invention provides a novel aluminum alloy auxiliary frame which can effectively solve the problems.

Disclosure of Invention

The invention aims to provide a novel aluminum alloy auxiliary frame. According to the novel aluminum alloy auxiliary frame, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are formed through extrusion, so that the novel aluminum alloy auxiliary frame is light in weight, high in yield, low in cost and easy to control welding; meanwhile, the length and the width of the auxiliary frame can be changed only by changing the lengths of the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam under the condition of not changing a die, so that the wheel base and the wheel base of the whole vehicle are changed, and the development cost and the tooling cost are saved; the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket of the invention need to be connected with other parts of a vehicle body or a chassis, the structural change is complex, the casting part formed by casting aluminum alloy is beneficial to improving the mechanical property, various problems of different materials in the welding process can be avoided, and the welding consistency can be ensured.

The invention is realized by the following technical scheme:

a novel aluminum alloy auxiliary frame comprises a front cross beam, a rear cross beam, a left longitudinal beam and a right longitudinal beam, wherein the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are all formed by adopting aluminum alloy section bars in an extrusion mode to form a hollow tubular structure;

the auxiliary frame also comprises a left front mounting bracket, a right front mounting bracket, a left rear mounting bracket and a right rear mounting bracket; the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket are all cast by aluminum alloy; the two ends of the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket are respectively provided with an assembling groove;

two ends of the front cross beam are respectively installed in the assembling grooves of the left front installing support and the right front installing support and are connected through welding; two ends of the rear cross beam are respectively arranged in the assembly grooves of the left rear mounting bracket and the right rear mounting bracket and are connected by welding; two ends of the left longitudinal beam are respectively installed in the assembling grooves of the left front installing support and the left rear installing support and are connected through welding; and two ends of the right longitudinal beam are respectively installed in the assembling grooves of the right front installing support and the right rear installing support and are connected through welding.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the left front mounting bracket is provided with a left bush mounting hole, and a left bush is mounted in the left bush mounting hole; the right front mounting bracket is provided with a right bushing mounting hole, and a right bushing is mounted in the right bushing mounting hole.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the front left mounting bracket is provided with a first mounting hole for being connected with a vehicle body, the front right mounting bracket is provided with a second mounting hole for being connected with the vehicle body, the rear left mounting bracket is provided with a third mounting hole for being connected with the vehicle body, and the rear right mounting bracket is provided with a fourth mounting hole for being connected with the vehicle body.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the left longitudinal beam is provided with a left front swing arm upper mounting bracket; the rear cross beam is provided with a mounting bracket on the right front swing arm.

According to the above technical solution, as a further preferable technical solution of the above technical solution, a left front swing arm lower mounting bracket is provided at a lower portion of the left front mounting bracket; and the lower part of the right front mounting bracket is provided with a right front swing arm lower mounting bracket.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the upper part of the left rear mounting bracket is provided with a left rear swing arm upper mounting bracket, and the lower part thereof is provided with a left rear swing arm lower mounting bracket; the upper part of the right rear mounting bracket is provided with a right rear swing arm upper mounting bracket, and the lower part of the right rear mounting bracket is provided with a right rear swing arm lower mounting bracket.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the left front mounting bracket and the right front mounting bracket are respectively provided with a first grid structure, a plurality of first lightening holes are formed inside the first grid structure, and each of the first lightening holes is a hollow hole with a different shape.

According to the above technical solution, as a further preferable technical solution of the above technical solution, the left rear mounting bracket and the right rear mounting bracket are respectively provided with a second grid structure, and a plurality of second lightening holes in a circular shape are formed in the second grid structure.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam which are formed by extrusion are light in weight, high in yield, low in cost and easy to control welding; meanwhile, the length and the width of the auxiliary frame can be changed only by changing the lengths of the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam under the condition of not changing a die, so that the wheel base and the wheel base of the whole vehicle are changed, and the development cost and the tooling cost are saved;

2. the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are hollow tubular structures, so that the requirement of an automobile on the light weight of an auxiliary frame can be met;

3. the left front mounting bracket, the right front mounting bracket, the left rear mounting bracket and the right rear mounting bracket of the invention need to be connected with other parts of the vehicle body or the chassis, the structural change is more complex, and the mechanical property of the invention can be improved by casting and forming.

4. The invention adopts aluminum alloy extrusion forming and aluminum alloy casting parts, can avoid various problems of different materials in the welding process, and can ensure the welding consistency.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic bottom view of the present invention.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

a novel aluminum alloy auxiliary frame comprises a front cross beam 1, a rear cross beam 2, a left longitudinal beam 3 and a right longitudinal beam 4, wherein the front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are all formed by adopting aluminum alloy section bars in an extrusion mode to form a hollow tubular structure;

the auxiliary frame further comprises a left front mounting bracket 5, a right front mounting bracket 6, a left rear mounting bracket 7 and a right rear mounting bracket 8; the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 are all cast by aluminum alloy; the two ends of the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 are provided with assembling grooves 9;

two ends of the front cross beam 1 are respectively arranged in the assembly grooves 9 of the left front mounting bracket 5 and the right front mounting bracket 6 and are connected by welding; two ends of the rear cross beam 2 are respectively arranged in the assembly grooves 9 of the left rear mounting bracket 7 and the right rear mounting bracket 8 and are connected through welding; two ends of the left longitudinal beam 3 are respectively installed in the assembling grooves 9 of the left front installing support 5 and the left rear installing support 7 and are connected through welding; and two ends of the right longitudinal beam 4 are respectively installed in the assembling grooves 9 of the right front installing support 6 and the right rear installing support 8 and are connected through welding.

Example 2:

a novel aluminum alloy auxiliary frame comprises a front cross beam 1, a rear cross beam 2, a left longitudinal beam 3 and a right longitudinal beam 4, wherein the front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are all formed by adopting aluminum alloy section bars in an extrusion mode to form a hollow tubular structure;

the auxiliary frame further comprises a left front mounting bracket 5, a right front mounting bracket 6, a left rear mounting bracket 7 and a right rear mounting bracket 8; the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 are all cast by aluminum alloy; the two ends of the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 are provided with assembling grooves 9;

two ends of the front cross beam 1 are respectively arranged in the assembly grooves 9 of the left front mounting bracket 5 and the right front mounting bracket 6 and are connected by welding; two ends of the rear cross beam 2 are respectively arranged in the assembly grooves 9 of the left rear mounting bracket 7 and the right rear mounting bracket 8 and are connected through welding; two ends of the left longitudinal beam 3 are respectively installed in the assembling grooves 9 of the left front installing support 5 and the left rear installing support 7 and are connected through welding; and two ends of the right longitudinal beam 4 are respectively installed in the assembling grooves 9 of the right front installing support 6 and the right rear installing support 8 and are connected through welding.

The front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 are formed by extrusion, so that the invention has the advantages of light weight, high yield, low cost and easy control of welding; meanwhile, the length and the width of the auxiliary frame can be changed only by changing the lengths of the front cross beam 1, the rear cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 under the condition of not changing a die, so that the wheel base and the wheel base of the whole vehicle are changed, and the development cost and the tooling cost are saved; the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 are connected with other parts of a vehicle body or a chassis, the structural change is complex, the mechanical property of the cast part is improved by casting the aluminum alloy, various problems of different materials in the welding process can be avoided, and the welding consistency can be ensured.

Further, in another embodiment, the left front mounting bracket 5 is provided with a left bushing mounting hole 10, and a left bushing 11 is mounted in the left bushing mounting hole 10; and the right front mounting bracket 6 is provided with a right bushing mounting hole 12, and a right bushing 13 is mounted in the right bushing mounting hole 12.

Further, in another embodiment, the left front mounting bracket 5 is provided with a first mounting hole 14 for connecting with a vehicle body, the right front mounting bracket 6 is provided with a second mounting hole 15 for connecting with the vehicle body, the left rear mounting bracket 7 is provided with a third mounting hole 16 for connecting with the vehicle body, and the right rear mounting bracket 8 is provided with a fourth mounting hole 17 for connecting with the vehicle body.

Further, in another embodiment, the left longitudinal beam 3 is provided with a left front swing arm upper mounting bracket 18; the rear cross beam 2 is provided with a right front swing arm upper mounting bracket 19.

Further, in another embodiment, the lower part of the left front mounting bracket 5 is provided with a left front swing arm lower mounting bracket 20; and a lower right front swing arm mounting bracket 21 is arranged at the lower part of the right front mounting bracket 6.

Further, in another embodiment, the upper part of the left rear mounting bracket 7 is provided with a left rear swing arm upper mounting bracket 22, and the lower part is provided with a left rear swing arm lower mounting bracket 23; the upper part of the right rear mounting bracket 8 is provided with a right rear swing arm upper mounting bracket 24, and the lower part is provided with a right rear swing arm lower mounting bracket 25.

Further, in another embodiment, the left front mounting bracket 5 and the right front mounting bracket 6 are respectively provided with a first grid structure 26, a plurality of first lightening holes 27 are formed in the first grid structure 26, and each first lightening hole 27 is a hollow hole with a different shape.

Further, in another embodiment, the left rear mounting bracket 7 and the right rear mounting bracket 8 are respectively provided with a second grid structure 28, and a plurality of second lightening holes 29 in a circular shape are opened in the second grid structure 28.

According to the invention, the first grid structure 26 and the second grid structure 28 are arranged, so that the local rigidity of the left front mounting bracket 5, the right front mounting bracket 6, the left rear mounting bracket 7 and the right rear mounting bracket 8 is enhanced, the vibration transmitted to each mounting point of the auxiliary frame body by an engine is reduced, and the comfort of an automobile is improved; and the arrangement of the first lightening hole 27 and the second lightening hole 29 further meets the requirement of the automobile on the light weight of the auxiliary frame.

According to the description and the drawings of the invention, a person skilled in the art can easily manufacture or use the novel aluminum alloy auxiliary frame and can produce the positive effects recorded in the invention.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.