Combined longitudinal beam of light truck frame

Abstract

The utility model discloses a combined longitudinal beam of a light truck frame, the end part of the longitudinal beam (1) is provided with a notch, the longitudinal beam (1) comprises a web (11), an upper side plate (12) and a lower side plate (13), the upper side plate (12) and the lower side plate (13) are arranged on the two sides of the web (11), the upper side plate (12) is shorter than the lower side plate (13), the end part of the longitudinal beam (1) is provided with a front end plate (2), the front end plate (2) is divided into a step plate (21) and a mounting plate (22) arranged on the side edge of the step plate (21), and the mounting plate (22) is provided with a mounting hole (22). A cross beam (4) is arranged between the longitudinal beams (1), a U-shaped plate (5) is arranged between the longitudinal beams (1) and the cross beam (4), the height difference exists between the front ends and the rear ends of the longitudinal beams (1) through the front end plate (2), the torsion resistance of the positions of the longitudinal beams (1) is improved through cooperation of the cross beam (4) and the U-shaped plate (5), the strength of the longitudinal beams (1) is improved, the twist-off situation is reduced, the structure is simple, the development cost is low, and the period is short.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of frame longitudinal beam, specifically, the utility model relates to a light truck frame combined longitudinal beam. BACKGROUND

[0002] The frame is the skeleton of the light truck, and the longitudinal beam is the most important component of the frame. The longitudinal beam connects the leaf spring, the vehicle body cargo compartment and the power assembly and almost all important components. The frame longitudinal beam is complex in stress and has extremely high torsion resistance. If the longitudinal beam has poor torsion resistance, it is easy to deform and even crack. With the increasing richness of light truck deformation products and the increasing types of light truck frames, the types of longitudinal beam profiles are more, the mold development cycle is longer, and the mold cost is higher. Considering the arrangement of the light truck, the front part of the longitudinal beam is a variable cross section.

[0003] A new light truck frame longitudinal beam and its connecting structure are disclosed in a public specification with patent number 202220987295.6 and publication date August 16, 2022. The connecting structure includes a longitudinal beam and a cross beam installed between the longitudinal beams by the connecting structure. The longitudinal beam includes an upper wing plate, a lower wing plate, and a web plate arranged between the upper and lower wing plates. The web plate and the lower wing plate are fixedly provided with a sliding groove structure on the side facing the cross beam. The connecting structure is fixed in the sliding groove by fasteners. The utility model effectively enhances the strength of the original longitudinal beam structure, reduces the quality, reduces the machining time of the longitudinal beam structure, improves the overall working efficiency of the frame, and reduces the cost.

[0004] The current technical solution for the longitudinal beam is as follows: 1. The longitudinal beam is realized by a whole stamping die, which is large in size and long in time, and has high development cost. 2. The longitudinal beam is formed by segmental combination. The existing combined longitudinal beam is heavy or has weak torsion resistance. These two solutions are either large in die size, long in development cycle, or heavy in longitudinal beam, poor in torsion resistance. The front part of the longitudinal beam needs to be combined with the arrangement of the cab suspension, and needs to adopt a sinking structure. The sinking structure has a smaller cross section and poorer torsion resistance. The front spring support is generally located in the front part of the longitudinal beam. The front spring support is complex in stress and large in stress, and is prone to deformation and cracking. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a light truck frame combined longitudinal beam with high structural strength and simple structure.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme: a light truck frame combined longitudinal beam, the end part of the longitudinal beam is provided with a notch, the longitudinal beam includes a web plate and upper and lower side plates arranged on both sides of the web plate, the upper side plate is shorter than the lower side plate, the end part of the longitudinal beam is provided with a reinforcing structure, and the reinforcing structure is a front end plate arranged at the end part of the longitudinal beam.

[0007] The front end plate is divided into a stepped plate and a mounting plate arranged at the side of the stepped plate, one end of the stepped plate is connected with the upper side plate, and the mounting plate is connected with the web plate.

[0008] The stepped plate comprises a short plate, a long plate and an arc-shaped plate arranged between the long plate and the short plate, and the short plate is mounted at the end of the upper side plate by a screw.

[0009] The middle part of the mounting plate is outwardly convex, and a reinforcing plate is arranged at the side of the mounting plate away from the web plate.

[0010] The reinforcing plate is arranged at the outwardly convex part of the middle part of the mounting plate, and four screw holes are arranged on the four corners of the reinforcing plate.

[0011] The longitudinal beams are provided with cross beams, and the cross beams are divided into lower beams connected with the lower side plates and upper beams connected with the upper side plates.

[0012] U-shaped plates are arranged between the upper beams and the lower beams, and the U-shaped plates and the cross beams are connected with the longitudinal beams by screws.

[0013] The U-shaped plates are provided with weight-reducing holes.

[0014] The technical effect of the utility model is that the front end plate makes the front and rear ends of the longitudinal beam have a height difference, cooperates with the cross beams and the U-shaped plates, improves the torsion resistance of the longitudinal beam at this position, improves the strength of the longitudinal beam, reduces the occurrence of torsional fracture, and has simple structure, low development cost, short period. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the shown contents are respectively:

[0016] Figure 1 It is a structural schematic view of a combined longitudinal beam of a light truck frame.

[0017] Figure 2 It is Figure 1 It is a schematic view of a front end plate of a combined longitudinal beam of a light truck frame.

[0018] In the figure, the marks are: 1, longitudinal beam; 11, web plate; 12, upper side plate; 13, lower side plate; 2, front end plate; 21, stepped plate; 211, long plate; 212, short plate; 213, arc-shaped plate; 22, mounting plate; 3, reinforcing plate; 4, cross beam; 41, upper beam; 42, lower beam; 5, U-shaped plate. DETAILED DESCRIPTION

[0019] The specific embodiments of the utility model are further explained in detail by comparing the drawings and describing the embodiments, the purpose is to help the technical personnel in the field to have more complete, accurate and deep understanding of the utility model concept and technical scheme of the utility model, and to help its implementation.

[0020] Please refer to Figures 1-2 The utility model provides a light truck frame combination longitudinal beam, the end of longitudinal beam 1 is equipped with a notch, longitudinal beam 1 includes web plate 11 and the upper side plate 12 and lower side plate 13 of setting on the both sides of web plate 11, the upper side plate 12 is shorter than lower side plate 13, the end of longitudinal beam 1 is equipped with reinforcing structure, and reinforcing structure is the front end plate 2 of setting in the end of longitudinal beam 1, the end of longitudinal beam 1 is equipped with front end plate 2 with front and back end height difference, improves the torsional strength of the end of longitudinal beam 1, reduces the occurrence of torsional fracture.

[0021] Front end plate 2 is divided into stepped plate 21 and mounting plate 22 of setting in the side of stepped plate 21, and one end of stepped plate 21 is connected with upper side plate 12, and mounting plate 22 is connected with web plate 11, and stepped plate 21 is arranged at the notch of longitudinal beam 1, and stepped plate 21 is fixed on longitudinal beam 1 by mounting plate 22, and the torsional strength of longitudinal beam 1 is improved by the stepped plate 21 with height difference.

[0022] Stepped plate 21 includes short plate 212, long plate 211 and arc plate 213 arranged between long plate 211 and short plate 212, and short plate 212 is installed at the end of upper side plate 12 by screw, and the existence of arc plate 213 makes short plate 212 and long plate 211 have height difference, so that the shape of mounting plate 22 has height difference, and the strength of longitudinal beam 1 is improved.

[0023] The middle part of mounting plate 22 protrudes outward, and the side, away from web plate 11, of mounting plate 22 is equipped with reinforcing plate 3, so as to improve the mounting strength of mounting plate 22 and reduce the loosening condition.

[0024] Reinforcing plate 3 is located at the outward protruding part of the middle part of mounting plate 22, and four screw holes are arranged on the four corners of reinforcing plate 3, so as to further improve the mounting strength of mounting plate 22.

[0025] Cross beam 4 is arranged between longitudinal beams 1, and cross beam 4 is divided into lower beam 42 connected with lower side plate 13 and upper beam 41 connected with upper side plate 12, so as to connect the total amount at two ends together.

[0026] U-shaped plate 5 is arranged between upper beam 41 and lower beam 42, and U-shaped plate 5 is connected with longitudinal beam 1 by screw together with cross beam 4, so as to form a box type with the total amount main body and front end plate 2, and the torsional strength of longitudinal beam 1 is improved.

[0027] Weight-reducing holes are arranged on U-shaped plate 5, so as to reduce the weight and cost.

[0028] The utility model discloses a technology effect that: through front end plate 2, the front and back end of longitudinal beam 1 has height difference, and is equipped with cross beam 4 and U-shaped plate 5, improves the torsional capacity of longitudinal beam 1 here, improves the strength of longitudinal beam 1, reduces the occurrence of torsional fracture, and the structure is simple, and the development cost is low, and the period is short.

[0029] The utility model has been described exemplarily above in combination with the drawings. Apparently, the utility model is not limited by the above-mentioned mode in the specific implementation. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A light truck frame assembly rail characterized by: The end of the longitudinal beam (1) is provided with a notch, the longitudinal beam (1) comprises a web plate (11) and upper side plates (12) and lower side plates (13) arranged on both sides of the web plate (11), the upper side plates (12) are shorter than the lower side plates (13), the end of the longitudinal beam (1) is provided with a reinforcing structure, and the reinforcing structure is a front end plate (2) arranged at the end of the longitudinal beam (1).

2. The light truck frame assembly rail of claim 1, wherein: The front end plate (2) is divided into a stepped plate (21) and a mounting plate (22) arranged on the side of the stepped plate (21), one end of the stepped plate (21) is connected with the upper side plate (12), and the mounting plate (22) is connected with the web plate (11).

3. The light truck frame assembly rail of claim 2, wherein: The stepped plate (21) comprises a short plate (212), a long plate (211) and an arc-shaped plate (213) arranged between the long plate (211) and the short plate (212), and the short plate (212) is mounted at the end of the upper side plate (12) through screws.

4. The light truck frame assembly rail of claim 2, wherein: The middle part of the mounting plate (22) is outwardly convex, and the side, away from the web plate (11), of the mounting plate (22) is provided with a reinforcing plate (3).

5. A light truck frame assembly rail according to claim 4, wherein: The reinforcing plate (3) is located at the outwardly convex part of the middle part of the mounting plate (22), and four screw holes are arranged on four corners of the reinforcing plate (3).

6. The light truck frame assembly rail of claim 1, wherein: The longitudinal beams (1) are provided with cross beams (4), the cross beams (4) are divided into lower beams (42) connected with the lower side plates (13) and upper beams (41) connected with the upper side plates (12).

7. A light truck frame assembly rail according to claim 6 wherein: U-shaped plates (5) are arranged between the upper beams (41) and the lower beams (42), and the U-shaped plates (5) and the cross beams (4) are connected with the longitudinal beams (1) through screws.

8. A light truck frame assembly rail according to claim 7, characterized in that: Weight-reducing holes are formed in the U-shaped plates (5).

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