High-strength light-weight automobile auxiliary frame

Abstract

The utility model relates to the technical field of automobile chassis components, in particular to a high-strength light-weight automobile auxiliary frame which comprises a front cross beam and a rear cross beam which are symmetrical to each other, a left longitudinal beam and a right longitudinal beam which are symmetrical to each other are fixedly installed between the front cross beam and the rear cross beam, and a hollow cavity is formed in each cross beam. An inner supporting beam is arranged at the center position of the hollow cavity, a plurality of pressure-resistant supporting plates which are annularly arranged at equal intervals are fixedly installed between the inner supporting beam and the cross beam, and a front top lap joint beam and a rear top lap joint beam which are mutually symmetrical are fixedly installed between the longitudinal beam and the cross beam. Side supporting rods are fixedly installed between the top lap joint beam and the vertical section rod bodies on the left side and the right side of the cross beam, reinforcing supporting bases are fixedly installed between the side supporting rods and the rod bodies at the corner positions of the left side and the right side of the cross beam, and a cross rod is fixedly installed between every two adjacent compression-resistant supporting plates. The utility model has the advantages of high structural strength and light weight.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile chassis assembly, specifically, relate to a high -strength light -duty automobile sub -frame. BACKGROUND

[0002] As the key component of automobile chassis, the performance of sub-frame directly affects the handling, safety and fuel economy of the whole vehicle. There are many types of sub-frames on the market. Traditional sub-frames are usually made of steel. Although this material has high strength and rigidity, it is not conducive to the lightweight design of the automobile. With the rapid development of automobile industry and the increasing demand of consumers for automobile performance, lightweight, high-strength and corrosion-resistant sub-frames have become a new demand in the market.

[0003] Aluminum alloy material has the characteristics of small density, good formability and excellent corrosion resistance, which becomes an important way to realize automobile lightweight. Compared with traditional steel sub-frames, aluminum alloy sub-frames have lighter weight, higher strength and better corrosion resistance.

[0004] However, most of the sub-frames made of aluminum alloy material still use solid structure for the main beam body. The weight of the solid structure main beam body is heavy. In addition, due to the large size of the main beam body, the use of solid structure will cause the weight of the main beam body to be overweight, which is not conducive to achieving the effect of lightweight. In view of this, we propose a high-strength light-weight automobile sub-frame. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-strength light-weight automobile sub-frame to solve the defects in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A high-strength light-weight automobile sub-frame, comprising two mutually symmetrical cross beams, two mutually symmetrical longitudinal beams are fixedly installed between the front and rear cross beams, a hollow chamber is arranged in the cross beam, an inner support beam is arranged at the center position of the hollow chamber, a plurality of annularly equidistantly arranged compression support plates are fixedly installed between the inner support beam and the cross beam, two mutually symmetrical top lap beams are fixedly installed between the longitudinal beams and the cross beams, a side brace is fixedly installed between the top lap beam and the vertical section rod body on the left and right sides of the cross beam, a reinforcing support seat is fixedly installed between the side brace and the rod body at the corner position on the left and right sides of the cross beam, and a cross rod is fixedly installed between two adjacent compression support plates.

[0008] Preferably, the inner support beam is provided with an inner chamber in communication with the outside, and the number of the compression-resistant support plates is 4-12.

[0009] Preferably, the outer end of the cross-shaped rod is fixedly installed on the inner side of the cross beam, and the inner end of the cross-shaped rod is fixedly installed on the adjacent two compression-resistant support plates.

[0010] Preferably, the L-shaped assembling seat is provided with a through hole on the bottom plate and the side plate.

[0011] Preferably, the L-shaped assembling seat is provided with a through hole on the bottom plate and the side plate.

[0012] Preferably, the L-shaped assembling seat is provided with a through hole on the bottom plate and the side plate.

[0013] Preferably, the L-shaped assembling seat is provided with a through hole on the bottom plate and the side plate.

[0014] Preferably, the L-shaped assembling seat is provided with a through hole on the bottom plate and the side plate.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The cross beam is internally provided with a hollow chamber, and the inner support beam is arranged in the hollow chamber, so that the weight is reduced, and the compression-resistant support plate and the cross-shaped rod are matched to form a plurality of triangular support structures, the triangular structure is stable, the weight is reduced under the premise of high strength, and the effect of reducing the weight and ensuring the strength is achieved.

[0017] 2. The longitudinal beam, the bottom compression-resistant beam, the top lap beam, the side support rod and the reinforcing support seat are arranged, so that the further reinforcing operation between the cross beam and the longitudinal beam is realized, and the strength is ensured to meet the requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the whole structure of the utility model;

[0019] Figure 2 It is a schematic view of the whole structure of the utility model; Figure 1 It is an enlarged view of the middle A part;

[0020] Figure 3 It is the sectional view of the beam of the utility model;

[0021] Figure 4 It is the structural schematic view of the assembly seat of the utility model;

[0022] Figure 5 It is the structural schematic view of the positioning seat of the utility model;

[0023] The meaning of each reference numeral in the figure is as follows:

[0024] 1, beam; 10, hollow chamber; 11, inner support beam; 12, inner chamber; 13, compression-resistant support plate; 14, cross-shaped crossbar; 15, assembly seat; 151, through hole; 16, positioning seat; 161, exposed hole; 162, fixing ring; 163, bolt hole;

[0025] 2, longitudinal beam; 20, bottom compression-resistant beam; 21, top lap joint beam; 211, arc-shaped support; 22, fixed support; 23, side support rod; 24, reinforced support seat. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Please refer to Figures 1-5 The utility model provides a technical scheme: a high-strength light-weight automobile auxiliary frame, which comprises two mutually symmetrical beams 1 in front and back, and two mutually symmetrical longitudinal beams 2 are fixedly installed between the two beams 1 in front and back, so as to realize the fixing operation between the two beams 1.

[0028] Specifically, the beam 1 is internally provided with a hollow chamber 10, the center position of the hollow chamber 10 is provided with an inner support beam 11, and the inner support beam 11 is internally provided with an inner chamber 12 connected with the outside, so as to reduce the weight of the beam 1 and the inner support beam 11, and achieve the effect of light weight.

[0029] Specifically, a plurality of compression-resistant support plates 13 arranged in a ring shape at equal intervals are fixedly installed between the inner support beam 11 and the cross beam 1, the number of the compression-resistant support plates 13 is 4-12, a cross-shaped cross bar 14 is fixedly installed between every two adjacent compression-resistant support plates 13, the outer end of the cross-shaped cross bar 14 is fixedly installed on the inner side of the cross beam 1, and the inner end of the cross-shaped cross bar 14 is fixedly installed on the adjacent two compression-resistant support plates 13, so that a plurality of triangular structures are formed between the inner support beam 11 and the cross beam 1. Since the triangle has stability, the structure of the inner support beam 11 and the cross beam 1 is more firm and stable, and the strength is improved.

[0030] In the embodiment, two front and rear top lap beams 21 symmetrical to each other are fixedly installed between the longitudinal beam 2 and the cross beam 1, a side support rod 23 is fixedly installed between the top lap beam 21 and the rod body of the vertical segment on the left and right sides of the cross beam 1, a reinforcing support seat 24 is fixedly installed between the side support rod 23 and the rod body at the corner position on the left and right sides of the cross beam 1, so that the structure between the longitudinal beam 2 and the cross beam 1 is more firm and stable.

[0031] Specifically, an assembly seat 15 is fixedly installed on the rod body at the left and right ends of the cross beam 1, the cross section of the assembly seat 15 is L-shaped, through holes 151 are arranged on the bottom plate body and the side plate body of the assembly seat 15, and the assembly seat 15 is used for normal installation on the vehicle body.

[0032] Further, a positioning seat 16 is fixedly installed on the rod body at the middle position of the cross beam 1, an exposed hole 161 is arranged on the rear side plate body of the positioning seat 16, and the positioning seat 16 is used for positioning assembly operation with the corresponding position on the vehicle body.

[0033] In addition, a fixing ring 162 is integrally formed on the left and right side plate bodies of the positioning seat 16, a bolt hole 163 in communication with the outside is arranged in the fixing ring 162, and the bolt hole 163 is used for bolt insertion for fixing operation.

[0034] It is worth noting that two front and rear bottom compression-resistant beams 20 symmetrical to each other are fixedly installed between the left and right longitudinal beams 2, and the vertical distance between the bottom compression-resistant beam 20 and the cross beam 1 is less than 3 cm, so that the bottom compression-resistant beam 20 can further play a compression-resistant supporting effect, and at the same time, the bottom compression-resistant beam 20 will not be too close to the ground.

[0035] It is worth noting that an arc-shaped support 211 is fixedly installed at one end of the top lap beam 21, the arc-shaped support 211 is fixedly installed on the longitudinal beam 2, a fixed support 22 is fixedly installed at the other end of the top lap beam 21, the fixed support 22 is fixedly installed on the cross beam 1, and the arc-shaped support 211 and the fixed support 22 can increase the fixed contact area between the top lap beam 21 and the longitudinal beam 2 and the cross beam 1, so that the fixing is more firm.

[0036] The high-strength and light-weight automobile auxiliary frame is used, the assembling seat 15 and the positioning seat 16 are normally positioned and fixedly installed on the vehicle body, the top lap joint beam 21, the side support rod 23 and the reinforcing support seat 24 can fixedly support between the longitudinal beam 2 and the cross beam 1, the compression resisting support plate 13 and the cross-shaped cross rod 14 can support the cross beam 1, after being subjected to external force, the compression resisting support plate 13 and the cross-shaped cross rod 14 can avoid the cross beam 1 from being easily deformed.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-strength lightweight automobile subframe, characterized by: The application relates to a reinforced beam structure, which comprises two mutually symmetrical front and rear beams (1), two mutually symmetrical left and right longitudinal beams (2) are fixedly arranged between the front and rear beams (1), a hollow chamber (10) is arranged in the beam (1), an inner support beam (11) is arranged at the center position of the hollow chamber (10), a plurality of annularly equidistantly arranged compression-resistant support plates (13) are fixedly arranged between the inner support beam (11) and the beam (1), two mutually symmetrical top lap beams (21) are fixedly arranged between the longitudinal beams (2) and the beams (1), a side support rod (23) is fixedly arranged between the top lap beam (21) and the vertical rod body on the left and right sides of the beam (1), a reinforcing support seat (24) is fixedly arranged between the side support rod (23) and the rod body at the corner position on the left and right sides of the beam (1), and a cross-shaped cross rod (14) is fixedly arranged between two adjacent compression-resistant support plates (13).

2. The high-strength lightweight automobile subframe according to claim 1, characterized by: The inner support beam (11) is provided with an inner chamber (12) connected with the outside, and the number of the compression-resistant support plates (13) is 4-12.

3. The high-strength lightweight automobile subframe according to claim 1, characterized by: The outer end of the cross rod (14) is fixedly arranged on the inner side of the beam (1), and the inner end of the cross rod (14) is fixedly arranged on the adjacent two compression-resistant support plates (13).

4. The high-strength light-weight automobile subframe according to claim 1, characterized by: The left and right end rod bodies of the beam (1) are fixedly provided with an assembly seat (15), the assembly seat (15) is in L-shaped section, and the bottom plate body and the side plate body of the assembly seat (15) are provided with through holes (151).

5. The high-strength light-weight automobile subframe according to claim 1, characterized by: The middle rod body of the beam (1) is fixedly provided with a positioning seat (16), and the rear side plate body of the positioning seat (16) is provided with an exposure hole (161).

6. The high-strength lightweight automobile subframe according to claim 5, characterized by: The left and right side plate bodies of the positioning seat (16) are integrally provided with a fixing ring (162), and the fixing ring (162) is provided with a bolt hole (163) connected with the outside.

7. The high-strength light-weight automobile subframe according to claim 1, characterized by: Two mutually symmetrical front and rear bottom compression-resistant beams (20) are fixedly arranged between the left and right longitudinal beams (2), and the vertical distance between the bottom compression-resistant beams (20) and the beams (1) is less than 3cm.

8. The high-strength light-weight automobile subframe according to claim 1, characterized by: One end of the top lap beam (21) is fixedly provided with an arc-shaped support (211), the arc-shaped support (211) is fixedly arranged on the longitudinal beam (2), the other end of the top lap beam (21) is fixedly provided with a fixed support (22), and the fixed support (22) is fixedly arranged on the beam (1).

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