阅读说明：本技术 具有吸能功能的前副车架及汽车 (Front auxiliary frame with energy absorption function and automobile ) 是由 卢大平 章桂林 田雷 祝庆 于 2019-08-30 设计创作，主要内容包括：本发明揭示了一种具有吸能功能的前副车架及汽车,包括相互平行的前横梁和中横梁,所述前横梁和中横梁的两端分别与内凹且呈镜像结构设置的左纵梁和右纵梁连接；所述左纵梁和右纵梁上均设有一吸能孔,所述吸能孔分别临近于左前推力杆支架和右前推力杆支架,且呈对称结构设置。本发明的有益效果主要体现在：前副车架结构精简合理,既提升了前副车架的强度,又便于前副车架与汽车车身以及其他部件的安装,同时,左纵梁和右纵梁上设有吸能孔,可充分吸收碰撞所产生的能力。(The invention discloses a front auxiliary frame with an energy absorption function and an automobile, which comprise a front cross beam and a middle cross beam which are parallel to each other, wherein two ends of the front cross beam and the middle cross beam are respectively connected with a left longitudinal beam and a right longitudinal beam which are concave and arranged in a mirror image structure; all be equipped with an energy-absorbing hole on left side longeron and the right longeron, the energy-absorbing hole is close to left front thrust bar support and right front thrust bar support respectively, and is the symmetrical structure setting. The invention has the following beneficial effects: the front auxiliary frame is simple and reasonable in structure, the strength of the front auxiliary frame is improved, the front auxiliary frame is convenient to mount with an automobile body and other parts, and meanwhile, the energy absorption holes are formed in the left longitudinal beam and the right longitudinal beam, so that the capacity generated by collision can be fully absorbed.)

1. Preceding sub vehicle frame with energy-absorbing function, its characterized in that: the front cross beam and the middle cross beam are parallel to each other, and two ends of the front cross beam (1) and the middle cross beam (2) are respectively connected with a left longitudinal beam (3) and a right longitudinal beam (4) which are concave and arranged in a mirror image structure;

the left longitudinal beam (3) at least comprises a left front bending end (31) and a left vertical end (32) integrated with the left front bending end, a left front thrust rod support (311) is fixedly arranged on the left front bending end (31), and the left front thrust rod support (311) is close to the front cross beam (1); a left steering gear bracket (321) and a left control arm bracket (322) are fixedly arranged on the left vertical end (32), wherein the left control arm bracket (322) is close to the middle cross beam (2);

the right longitudinal beam (4) at least comprises a right front bent end (41) and a right vertical end (42) integrated with the right front bent end, a right front thrust rod bracket (411) is fixedly arranged on the right front bent end (41), and the right front thrust rod bracket (411) is close to the front cross beam (1); a right steering gear support (421) and a right control arm support (422) are fixedly arranged on the right vertical end (42), wherein the right control arm support (422) is close to the middle cross beam (2);

all be equipped with an energy-absorbing hole (5) on left side longeron (3) and right longeron (4), energy-absorbing hole (5) are close to left front thrust bar support (311) and right front thrust bar support (411) respectively, and are the symmetrical structure setting.

2. The energy-absorbing front subframe of claim 1, wherein: left side vertical end (32) keep away from the one end of left front bending end (31) and still be equipped with rather than left back bending end (33) as an organic whole, right side vertical end (42) are kept away from the one end of right front bending end (41) still is equipped with rather than right back bending end (43) as an organic whole, still be equipped with between left side back bending end (33) and right back bending end (43) rather than rear beam (6) of rigid coupling, rear beam (6) with rear beam (6) are parallel.

3. The energy-absorbing front subframe of claim 2, wherein: the rear cross beam (6) is further fixedly provided with a left oblique beam (61) and a right oblique beam (62), the other ends of the left oblique beam (61) and the right oblique beam (62) are fixedly connected with the middle cross beam (2), and the left oblique beam (61) and the right oblique beam (62) cut a large trapezoidal space formed by the rear cross beam (6), the middle cross beam (2), the left longitudinal beam (3) and the right longitudinal beam (4) into three small trapezoidal spaces.

4. The energy-absorbing front subframe according to claim 1, wherein the angle between the front cross member (1) and the left front curved end (31) is 30 ~ 60 °.

5. The energy-absorbing front subframe of claim 4, wherein: the included angle between the front cross beam (1) and the left front bent end (31) is 45 degrees.

6. The energy-absorbing front subframe of claim 3, wherein: the front cross beam (1), the middle cross beam (2), the rear cross beam (6), the left oblique beam (61) and the right oblique beam (62) are all high-strength aluminum alloy extruded section cutting pieces.

7. The energy-absorbing front subframe of claim 3, wherein: the left longitudinal beam (3) and the right longitudinal beam (4) are high-strength aluminum alloy extruded section bending and cutting pieces.

8. The energy-absorbing front subframe of claim 3, wherein: the left front thrust rod support (311), the left direction machine support (321), the left control arm support (322), the right front thrust rod support (411), the right direction machine support (421) and the right control arm support (422) are all aluminum bending pieces or aluminum castings.

9. An automobile, characterized in that: the energy-absorbing front subframe according to any one of claims 1 to 8.

Technical Field

The invention relates to an automobile part, in particular to a front auxiliary frame with an energy absorption function and an automobile.

Background

The vehicle sub-frame is an independent structural member in the whole vehicle system, and is used for connecting a control arm, a stabilizer bar, a steering gear, a power assembly suspension, various wire harnesses, sensors and the like. The vehicle subframe bears most of the weight of the vehicle and has the following functions: transferring all loads of the suspension system to the vehicle floor; isolating vibration and noise transmitted by the suspension system and the transmission system; together with the vehicle body structure, absorb the energy generated during the collision of the vehicle; supporting the weight of the powertrain and carrying the various loads transmitted from the engine mount and the transmission mount; modular integration of steering and wheel control is provided. However, the existing subframe has low strength and cannot effectively absorb energy generated in the collision process; the integration level is not high, need be connected with sub vehicle frame through the intermediate beam when connecting other devices, and the intermediate beam usually need link to each other with sub vehicle frame through welding or bolted connection's mode for it is relatively loaded down with trivial details when the installation.

The invention patent named front auxiliary frame assembly is disclosed by the Chinese patent office on 26/3/2008, and the publication number is CN 201040541Y. The assembly comprises a front auxiliary frame front cross beam welding assembly, a front auxiliary frame rear cross beam welding assembly, a front auxiliary frame left longitudinal beam welding assembly and a front auxiliary frame right longitudinal beam welding assembly, wherein every two of the front auxiliary frame left longitudinal beam welding assembly and the front auxiliary frame right longitudinal beam welding assembly are mutually connected to. This preceding sub vehicle frame assembly is hollow frame construction, and intensity is less, can not effectively absorb the energy that produces among the collision process, and the integrated level is not high, lacks the connection structure of other devices to cause the installation relatively complicated.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a front auxiliary frame with an energy absorption function and an automobile.

The purpose of the invention is realized by the following technical scheme:

a front auxiliary frame with an energy absorption function comprises a front cross beam and a middle cross beam which are parallel to each other, wherein two ends of the front cross beam and the middle cross beam are respectively connected with a left longitudinal beam and a right longitudinal beam which are concave and arranged in a mirror image structure;

the left longitudinal beam at least comprises a left front bending end and a left vertical end integrated with the left front bending end, a left front thrust rod support is fixedly arranged on the left front bending end, and the left front thrust rod support is close to the front cross beam; a left steering gear bracket and a left control arm bracket are fixedly arranged on the left vertical end, wherein the left control arm bracket is close to the middle cross beam;

the right longitudinal beam at least comprises a right front bent end and a right vertical end integrated with the right front bent end, a right front thrust rod bracket is fixedly arranged on the right front bent end, and the right front thrust rod bracket is close to the front cross beam; a right steering gear support and a right control arm support are fixedly arranged on the right vertical end, wherein the right control arm support is close to the middle cross beam;

all be equipped with an energy-absorbing hole on left side longeron and the right longeron, the energy-absorbing hole is close to left front thrust bar support and right front thrust bar support respectively, and is the symmetrical structure setting.

Preferably, the one end that left vertical end kept away from left front bend end still is equipped with rather than left back bend end as an organic whole, right vertical end is kept away from the one end of right front bend end still is equipped with rather than right back bend end as an organic whole, still be equipped with the back crossbeam rather than the rigid coupling between left back bend end and the right back bend end, the back crossbeam with the back crossbeam is parallel.

Preferably, the rear cross beam is further fixedly provided with a left oblique beam and a right oblique beam, the other ends of the left oblique beam and the right oblique beam are fixedly connected with the middle cross beam, and the left oblique beam and the right oblique beam cut a large trapezoidal space formed by the rear cross beam, the middle cross beam, the left longitudinal beam and the right longitudinal beam into three small trapezoidal spaces.

Preferably, the angle between the front cross beam and the left front bent end is 30 ~ 60 degrees.

Preferably, the included angle between the front cross beam and the left front bent end is 45 degrees.

Preferably, the front cross beam, the middle cross beam, the rear cross beam, the left oblique beam and the right oblique beam are all high-strength aluminum alloy extruded section cutting pieces.

Preferably, the left longitudinal beam and the right longitudinal beam are high-strength aluminum alloy extruded section bending cutting pieces.

Preferably, the left front thrust rod support, the left direction machine support, the left control arm support, the right front thrust rod support, the right direction machine support and the right control arm support are all aluminum bending pieces or aluminum castings.

An automobile comprises the front auxiliary frame with the energy absorption function.

The invention has the following beneficial effects:

1. the front auxiliary frame is simple and reasonable in structure, the strength of the front auxiliary frame is improved, the front auxiliary frame is convenient to mount with an automobile body and other parts, and meanwhile, the left longitudinal beam and the right longitudinal beam are provided with energy absorption holes which can fully absorb the capacity generated by collision;

2. the front cross beam, the middle cross beam, the left longitudinal beam and the right longitudinal beam are mutually matched to form a trapezoidal structure, and an included angle of 30 ~ 60 degrees is formed between the front cross beam and the left longitudinal beam, so that stress can be effectively decomposed during offset collision of the vehicle, and the strength requirement of low-speed collision of the vehicle is met;

3. the left oblique beam and the right oblique beam cut a large trapezoidal space formed by the middle cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam into three small trapezoidal spaces, so that the stability of the three small trapezoidal spaces can be improved, the three small trapezoidal spaces are gradually crushed or deformed under the condition of stress, and more capacity can be absorbed;

4. the energy absorption hole is positioned at the joint of the left front bent end and the left vertical end, and the joint is bent under the high-speed frontal collision, so that the impact force on a driver is reduced;

5. the front auxiliary frame is of an all-aluminum alloy structure, and the density of aluminum alloy is smaller than that of steel, so that the weight of the front auxiliary frame provided by the invention is smaller than that of the prior art, and the light weight of a vehicle is realized;

6. when the vehicle collides, the concave design of the left longitudinal beam and the right longitudinal beam can enable the left longitudinal beam and the right longitudinal beam to have larger elastic deformation, and part of the impact force can be removed, so that the pressure resistance of the left longitudinal beam and the right longitudinal beam is enhanced. In addition, the left longitudinal beam and the right longitudinal beam are designed in a three-section mode, when the impact force borne by the left front bending end reaches the limit, the left vertical end can deform, the deformation capacity of the left longitudinal beam is enhanced in the process, and the energy absorption capacity of the left longitudinal beam in the collision process is effectively improved.

Drawings

The technical scheme of the invention is further explained by combining the accompanying drawings as follows:

FIG. 1: the invention has a structure schematic diagram.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.

The present invention is not limited to the above embodiments, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in FIG. 1, the invention discloses a front subframe with an energy absorption function, which comprises a front cross beam 1 and a middle cross beam 2 which are parallel to each other, wherein two ends of the front cross beam 1 and the middle cross beam 2 are respectively connected with a left longitudinal beam 3 and a right longitudinal beam 4 which are concave and arranged in a mirror image structure. Specifically, the left longitudinal beam 3 at least comprises a left front bending end 31 and a left vertical end 32 integrated with the left front bending end 31, a left front thrust rod support 311 is fixedly arranged on the left front bending end 31, and the left front thrust rod support 311 is close to the front cross beam 1. Set firmly left direction machine support 321 and left control arm support 322 on the vertical end 32 in a left side, wherein, left control arm support 322 with well crossbeam 2 is close to. The right longitudinal beam 4 at least comprises a right front bent end 41 and a right vertical end 42 integrated with the right front bent end 41, a right front thrust rod bracket 411 is fixedly arranged on the right front bent end 41, and the right front thrust rod bracket 411 is close to the front cross beam 1. A right-direction machine support 421 and a right control arm support 422 are fixedly arranged on the right vertical end 42, wherein the right control arm support 422 is close to the middle cross beam 2. In the above, the left front thrust rod bracket 311 and the right front thrust rod bracket 411 are close to the front cross beam 1, and the front cross beam 1, the left longitudinal beam 3 and the right longitudinal beam 4 can share the gravity of the left front thrust rod and the right front thrust rod, so as to prevent the left longitudinal beam 3 and the right longitudinal beam 4 from being deformed under the long-time action. Right control arm support 422 and left control arm support 322 with the centre sill 2 is pressed close to, can by centre sill 2, left longeron 3 and right longeron 4 undertake jointly the gravity of left control arm and right control arm prevents left longeron 3 and right longeron 4 discover deformation under long-time effect.

All be equipped with an energy-absorbing hole 5 on left longeron 3 and the right longeron 4, energy-absorbing hole 5 is close to left front thrust bar support 311 and right front thrust bar support 411 respectively, and is the symmetrical structure setting. In this embodiment, the energy absorbing hole 5 is located at the junction of the left front bent end 31 and the left vertical end 32 and the junction of the right front bent end 41 and the right vertical end 42, and the energy absorbing hole 5 is located right below a body member. The energy-absorbing hole is located at the joint of the left front bending end and the left vertical end, and under the high-speed frontal collision, the joint is bent, so that the impact force on a driver is reduced. In addition, the energy absorption holes can be arranged to fully absorb the capacity generated by collision. Of course, the number and the positions of the energy absorption holes can be relatively finely adjusted.

The one end that left vertical end 32 kept away from left front bend end 31 still is equipped with rather than left back bend end 33 as an organic whole, right vertical end 42 is kept away from the one end of right front bend end 41 still is equipped with rather than right back bend end 43 as an organic whole, still be equipped with the rear cross beam 6 rather than the rigid coupling between left back bend end 33 and the right back bend end 43, rear cross beam 6 with rear cross beam 6 is parallel. The rear cross beam 6 is further fixedly provided with a left oblique beam 61 and a right oblique beam 62, the other ends of the left oblique beam 61 and the right oblique beam 62 are fixedly connected with the middle cross beam 2, and the left oblique beam 61 and the right oblique beam 62 cut a large trapezoidal space formed by the rear cross beam 6, the middle cross beam 2, the left longitudinal beam 3 and the right longitudinal beam 4 into three small trapezoidal spaces. The left oblique beam and the right oblique beam cut a large trapezoidal space formed by the middle cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam into three small trapezoidal spaces, so that the stability of the three small trapezoidal spaces can be improved, the three small trapezoidal spaces are gradually crushed or deformed under the condition of stress, and more capacity can be absorbed.

In the embodiment, the included angle between the front cross beam 1 and the left front bent end 31 is 30 ~ 60 degrees, preferably, the included angle between the front cross beam 1 and the left front bent end 31 is 45 degrees, and the arrangement can effectively resolve stress during offset collision of the vehicle and meet the strength requirement of low-speed collision of the vehicle.

Further, the front cross beam 1, the middle cross beam 2, the rear cross beam 6, the left oblique beam 61 and the right oblique beam 62 are all high-strength aluminum alloy extruded section cutting pieces. The left longitudinal beam 3 and the right longitudinal beam 4 are high-strength aluminum alloy extruded section bending cutting pieces. The left front thrust rod support 311, the left steering gear support 321, the left control arm support 322, the right front thrust rod support 411, the right steering gear support 421 and the right control arm support 422 are all aluminum bent pieces or aluminum castings. The parts are all of an all-aluminum alloy structure, and the density of the aluminum alloy is smaller than that of the steel, so that the weight of the front auxiliary frame provided by the invention is smaller than that of the prior art, and the light weight of the vehicle is realized.

The other design point of the invention is as follows: when the vehicle collides, the concave design of the left longitudinal beam and the right longitudinal beam can enable the left longitudinal beam and the right longitudinal beam to have larger elastic deformation, and part of the impact force can be removed, so that the pressure resistance of the left longitudinal beam and the right longitudinal beam is enhanced. In addition, the left longitudinal beam and the right longitudinal beam are designed in a three-section mode, if the impact force borne by the left front bending end reaches the limit, the left vertical end can deform, the deformation capacity of the left longitudinal beam is enhanced in the process, and the energy absorption capacity of the left longitudinal beam in the collision process is effectively improved.

The invention also discloses an automobile which comprises the front auxiliary frame with the energy absorption function.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.