CN214875127U

CN214875127U - Auxiliary frame

Info

Publication number: CN214875127U
Application number: CN202023019709.6U
Authority: CN
Inventors: 谢酉鸣; 郑驰浩; 薛丰盛
Original assignee: NINGBO JIANXIN CHASSIS SYSTEM CO Ltd
Current assignee: NINGBO JIANXIN CHASSIS SYSTEM CO Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-11-26
Anticipated expiration: 2030-12-15

Abstract

The application discloses sub vehicle frame, including front beam, rear frame member, left longeron and the right longeron that is the integral type structure, the both ends of left side longeron and right longeron are connected with front beam, rear frame member respectively, front beam, rear frame member, left longeron and right longeron enclose to close and form a fretwork region, utilize integrated into one piece technique with front beam, rear frame member, left longeron and right longeron formation integral type structure, saved the welded technology in back, simplified the processing technology of whole sub vehicle frame, improved manufacturing efficiency. Simultaneously, because the structure of integral type, sub vehicle frame wholeness is better, compares the sub vehicle frame that adopts the arc welding shaping and can avoid the stress concentration of welding area and lead to fatigue crack's production, also promotes thereupon in life.

Description

Auxiliary frame

Technical Field

The application relates to the technical field of automobile parts, in particular to an auxiliary frame.

Background

The sub-frame is a bracket for supporting the front and rear axles and the suspension, and enables the axles and the suspension to be connected with the main frame. All parts of the existing auxiliary frame of the passenger vehicle adopt a stamping forming process, and stamping plates of all parts are welded together by an arc welding technology.

In view of the above-mentioned related technologies, the inventor believes that the stamped plate tends to have a complex structure and different profiles, and further has a high requirement for the arc welding operation, and also needs to design a welding jig for the structure of different stamped plates, and also needs to clamp and fix the stamped plate before the arc welding operation, resulting in a low manufacturing efficiency of the entire subframe.

SUMMERY OF THE UTILITY MODEL

In order to improve manufacturing efficiency, the present application provides a subframe.

The application provides a sub vehicle frame adopts following technical scheme:

the utility model provides an auxiliary frame, is including front beam, rear frame member, left longeron and the right longeron that is the integral type structure, the both ends of left side longeron and right longeron are connected with front beam, rear frame member respectively, front beam, rear frame member, left longeron and right longeron enclose to close and form a fretwork region.

By adopting the technical scheme, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam form an integrated structure by utilizing an integrated forming technology, so that a rear welding process is omitted, the processing process of the whole auxiliary frame is simplified, and the manufacturing efficiency is improved. Simultaneously, because the structure of integral type, sub vehicle frame wholeness is better, compares the sub vehicle frame that adopts the arc welding shaping and can avoid the stress concentration of welding area and lead to fatigue crack's production, also promotes thereupon in life.

Preferably, the auxiliary beam is integrated with the left longitudinal beam and the right longitudinal beam; the two ends of the auxiliary beam are respectively connected with the left longitudinal beam and the right longitudinal beam, and the auxiliary beam is located between the front cross beam and the rear cross beam.

Through adopting above-mentioned technical scheme, the intensity of whole sub vehicle frame has firstly been strengthened in setting up of auxiliary beam, and secondly the auxiliary beam arranges that better when promoting whole sub vehicle frame intensity between preceding, the rear end rail distributes more evenly with the bearing capacity that receives, further promotion life. Moreover, the auxiliary beam, the left longitudinal beam and the right longitudinal beam are of an integrated structure, so that the overall strength is improved, and meanwhile, the situation that the stress concentration of a welding area is generated due to the existence of a welding seam is effectively avoided.

Preferably, the front cross beam and the rear cross beam have a height difference in a vertical arrangement direction.

By adopting the technical scheme, the adjusting parts can be arranged on the front cross beam and the rear cross beam within the height difference range and are used for being matched with different vehicle frame models.

Preferably, the left longitudinal beam comprises a first upper section beam and a first lower section beam, and the right longitudinal beam comprises a second upper section beam and a second lower section beam; the rear cross beam is connected with the first upper section beam, the second upper section beam and the second lower section beam, the first upper section beam and the second upper section beam are connected with the rear cross beam, the first lower section beam and the second lower section beam respectively, and the first upper section beam and the second upper section beam are connected with the front cross beam and the auxiliary beam respectively.

Through adopting above-mentioned technical scheme, the difference in height of preceding, back crossbeam in vertical side has been realized in setting up of upper and lower section roof beam, and preceding, back crossbeam is independent respectively simultaneously and is connected with upper and lower section roof beam and makes the bearing capacity can obtain the dispersion, the life of the whole sub vehicle frame of better promotion.

Preferably, two ends of the first upper section beam and the first lower section beam are connected with each other and enclose to form a first weight reduction area; and two ends of the second upper section beam and the second lower section beam are mutually connected and enclose to form a second weight reduction area.

Through adopting above-mentioned technical scheme, first and second subtract heavy district makes whole left longeron and right longeron obtain subtracting the weight, reduces the whole weight of sub vehicle frame, reaches lightweight effect.

Preferably, the end face of the auxiliary beam is provided with a weight reduction groove, and a grid reinforcing rib is arranged in the weight reduction groove.

Through adopting above-mentioned technical scheme, subtract the weight reduction with whole auxiliary beam of seting up of heavy groove, and then better make whole sub vehicle frame reach lightweight effect, the setting of net strengthening rib is in order to guarantee that whole auxiliary beam possesses higher intensity simultaneously.

Preferably, the first upper beam and the second upper beam are provided with reinforcing ribs on the outer surfaces.

Through adopting above-mentioned technical scheme, the setting up of stiffening rib makes the intensity of left and right longeron obtain promoting, and then the bulk strength of better promotion sub vehicle frame.

Preferably, a front mounting bracket is arranged on the front cross beam, at least one rear mounting bracket is arranged on the rear cross beam, an upper left mounting bracket and at least one lower left mounting bracket are arranged on the left longitudinal beam, and an upper right mounting bracket and at least one lower right mounting bracket are arranged on the right longitudinal beam.

By adopting the technical scheme, the arrangement of the mounting brackets is convenient for the connection of suspension parts such as a control arm, a stabilizer bar and the like.

Preferably, the two ends of the front cross beam are provided with front bushing mounting holes, and the two ends of the rear cross beam are provided with rear bushing mounting holes.

Through adopting above-mentioned technical scheme, the setting of preceding, back bush mounting hole is convenient for the installation of transmission with the bush.

Preferably, the front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam are all integrally formed aluminum alloy structural members and are arranged in a hollow mode.

Through adopting above-mentioned technical scheme, aluminum alloy material weight is lower for whole sub vehicle frame reaches better lightweight effect, and cavity setting makes weight obtaining under the condition with further reduction, has still reduced manufacturing cost simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the auxiliary frame is integrally formed, a subsequent welding process is omitted, the manufacturing efficiency is integrally improved, the integrity of the auxiliary frame with the integrated structure is better due to the absence of a welding area, and the bearing strength is higher;

2. through set up first, the second on left and right longeron subtracts the heavy district, combine to set up some heavy grooves and select for use the aluminum alloy structure on the auxiliary beam, synthesize and make the whole weight of sub vehicle frame reduce, and then reach lightweight effect, nevertheless set up the stiffening rib and subtract the not enough problem of intensity after the weight reduction in left and right longeron simultaneously and set up the net strengthening rib in subtracting the heavy inslot.

Drawings

FIG. 1 is a schematic view of the sub-frame at one of its viewing angles;

FIG. 2 is a schematic view of the sub-frame from another perspective;

FIG. 3 is a left side view of the subframe.

Description of reference numerals: 1. a front cross member; 11. a front bushing mounting hole; 12. a front mounting bracket; 2. a rear cross member; 21. a rear bushing mounting hole; 22. a rear mounting bracket; 3. a left stringer; 31. a first upper beam; 311. a bracket is arranged at the upper left; 32. a first lower section beam; 321. a left lower mounting bracket; 33. a first weight reduction zone; 4. a right stringer; 41. a second upper beam; 411. a bracket is arranged at the upper right part; 42. a second lower section beam; 421. a lower right mounting bracket; 43. a second weight reduction zone; 5. a hollowed-out area; 6. an auxiliary beam; 61. a weight reduction groove; 62. grid reinforcing ribs; 7. and (4) reinforcing ribs.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application discloses sub vehicle frame. Referring to fig. 1, an auxiliary frame is a frame, and includes a front cross member 1, a rear cross member 2, an auxiliary member 6, a left longitudinal member 3, and a right longitudinal member 4. Front beam 1 is parallel arrangement with rear beam 2 approximately, and left longeron 3 is parallel arrangement with right longeron 4 approximately, has certain interval simultaneously between front beam 1 and the rear beam 2, has certain interval between left longeron 3 and the right longeron 4 to front beam 1 realizes being connected through left longeron 3 and right longeron 4 with rear beam 2, and front beam 1, rear beam 2, left longeron 3 and right longeron 4 enclose to close and form a fretwork region 5.

The auxiliary beam 6 has both reinforcing and member connecting functions, and both ends thereof are connected to the left longitudinal beam 3 and the right longitudinal beam 4. Meanwhile, the auxiliary beam 6 is located in the hollow area 5 and is arranged between the front cross beam 1 and the rear cross beam 2.

Front beam 1, rear frame member 2, auxiliary beam 6, left longeron 3 and right longeron 4 formula structure as an organic whole, whole sub vehicle frame adopts the integrated into one piece technique promptly, and is concrete to have adopted integrative casting forming technique. Simultaneously, for making whole sub vehicle frame reach lightweight effect, front beam 1, rear frame member 2, auxiliary beam 6, left longeron 3 and right longeron 4 have all adopted the aluminum alloy structure to front beam 1, rear frame member 2, left longeron 3 and right longeron 4 are hollow structure.

Referring to fig. 1 and fig. 2 together, the front cross beam 1 has a certain curvature, and both ends of the front cross beam 1 have front bushing mounting holes 11, a front mounting bracket 12 is disposed at a middle position of the front cross beam 1, and the front mounting bracket 12 extends toward one side in the hollow area 5. Rear bushing mounting holes 21 are formed in two ends of the rear cross beam 2, two rear mounting brackets 22 are arranged in the middle area of the rear cross beam 2, and the two rear mounting brackets 22 have a certain spacing distance and vertically extend upwards from the end face of the rear cross beam 2.

The left longitudinal beam 3 comprises a first upper beam 31 and a first lower beam 32, one end of the first upper beam 31 is connected with the rear cross beam 2, and two ends of the first lower beam 32 are respectively connected with the front cross beam 1 and the auxiliary beam 6. The first upper section beam 31 and the first lower section beam 32 enclose to form a first weight reduction area 33, a left upper mounting bracket 311 is arranged on the side wall of the first upper section beam 31, and two left lower mounting brackets 321 are arranged on the side wall of the first lower section beam 32.

The right longitudinal beam 4 includes a second upper beam 41 and a second lower beam 42, one end of the second upper beam 41 is connected to the rear cross beam 2, and both ends of the second lower beam 42 are connected to the front cross beam 1 and the auxiliary beam 6, respectively. The second upper section beam 41 and the second lower section beam 42 enclose to form a second weight reduction area 43, a right upper mounting bracket 411 is arranged on the side wall of the second upper section beam 41, and two right lower mounting brackets 421 are arranged on the side wall of the second lower section beam 42.

The auxiliary beam 6 has a lightening groove 61 formed in an end surface facing the first lower beam 32, and a mesh reinforcement 62 is provided in the lightening groove 61.

Referring to fig. 3, the vertical arrangement direction is defined as the direction H in the drawing, and the first upper beam 31 and the second upper beam 41 are approximately distributed vertically, so that a height difference L exists between the front beam 1 and the rear beam 2 in the subframe in the vertical arrangement direction H, and the height difference L facilitates the connection of the adjusting component and the front beam 1/the rear beam 2 to perform the adaptation function with different frames.

The auxiliary frame is integrally formed by casting, so that a subsequent welding process is omitted, and the manufacturing efficiency is improved; meanwhile, the whole aluminum alloy structure is adopted, and the weight is greatly reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an auxiliary frame, its characterized in that, is including front beam (1), rear frame member (2), left longeron (3) and right longeron (4) that are the integral type structure, the both ends of left longeron (3) and right longeron (4) are connected with front beam (1), rear frame member (2) respectively, front beam (1), rear frame member (2), left longeron (3) and right longeron (4) enclose to close and form a fretwork region (5).

2. The auxiliary frame according to claim 1, further comprising an auxiliary beam (6), wherein the auxiliary beam (6) is of an integral structure with the left longitudinal beam (3) and the right longitudinal beam (4); the two ends of the auxiliary beam (6) are respectively connected with the left longitudinal beam (3) and the right longitudinal beam (4), and the auxiliary beam (6) is located between the front cross beam (1) and the rear cross beam (2).

3. A subframe according to claim 1, wherein said front (1) and rear (2) cross members have a height difference in the vertical direction.

4. A subframe according to claim 2, wherein said left longitudinal beam (3) comprises a first upper beam (31) and a first lower beam (32), and said right longitudinal beam (4) comprises a second upper beam (41) and a second lower beam (42); one ends of the first upper section beam (31) and the second upper section beam (41) are connected with the rear cross beam (2), two ends of the first lower section beam (32) are respectively connected with the front cross beam (1) and the auxiliary beam (6), and two ends of the second lower section beam (42) are respectively connected with the front cross beam (1) and the auxiliary beam (6).

5. A subframe according to claim 4 wherein said first upper section beam (31) and said first lower section beam (32) are interconnected at both ends and enclose a first lightening area (33); the two ends of the second upper section beam (41) and the second lower section beam (42) are connected with each other and enclose to form a second weight-reducing area (43).

6. The subframe according to claim 2, wherein the auxiliary beam (6) is provided with lightening slots (61) at the end surfaces, and grid reinforcing ribs (62) are arranged in the lightening slots (61).

7. A sub-frame according to claim 4, in which the first (31) and second (41) upper section beams are provided with reinforcing ribs (7) on the outer surface.

8. A sub-frame according to any one of claims 1-7, characterised in that a front mounting bracket (12) is provided on said front cross member (1), at least one rear mounting bracket (22) is provided on said rear cross member (2), an upper left mounting bracket (311) and at least one lower left mounting bracket (321) are provided on said left side member (3), and an upper right mounting bracket (411) and at least one lower right mounting bracket (421) are provided on said right side member (4).

9. A sub-frame according to any one of claims 1 to 7, in which both ends of said front cross member (1) are provided with front bushing mounting holes (11), and both ends of said rear cross member (2) are provided with rear bushing mounting holes (21).

10. The auxiliary frame according to any one of claims 1 to 7, wherein the front cross member (1), the rear cross member (2), the left longitudinal member (3) and the right longitudinal member (4) are all integrally formed aluminum alloy structural members and are hollow inside.