Sectional type frame of new energy logistics vehicle

Abstract

The utility model relates to a new energy logistics vehicle sectional type vehicle frame which comprises a vehicle frame front section (1), a vehicle frame rear section (7) and a vehicle frame middle section (4), the vehicle frame middle section (4) is fixed below the vehicle frame front section (1) and the vehicle frame rear section (7) in a lap joint mode to form an integral vehicle frame, and a concave outline space is formed in the middle of the integral vehicle frame. A fixed installation space can be formed for the battery installation unit, the use space of a cargo compartment frame on the frame is not changed, and meanwhile the applicability of the frame is improved.

Description

Technical Field

[0001] The utility model relates to a new energy logistics vehicle frame, in particular to a new energy logistics vehicle segmented frame which is overlapped and fixed in segments to form a concave structure in the middle and is convenient for reserving an installation position for a battery installation unit. Background Art

[0002] The frames of existing new energy logistics vehicles are generally composed of crossbeams and longitudinal beams connected by riveting and bolting. In order to improve the stability of the cargo compartment, a subframe that supports the stability of the cargo compartment is fixed on the frame. There are many parts, which makes the overall weight of the vehicle heavier, increases the vehicle's energy consumption, and reduces the vehicle's endurance.

[0003] The battery mounting unit is usually installed by hoisting it on the left and right sides of the middle of the frame, so that the center of gravity of the frame is concentrated at the center of the frame, enhancing the stability of the vehicle. However, it also leads to poor torsional resistance of the left and right longitudinal beams of the frame, which is prone to tearing, reducing the performance of the entire vehicle and frame.

[0004] For example, the invention patent document with application publication number CN116788021A discloses a new energy logistics vehicle frame, in which the battery mounting unit is installed by hoisting on the left and right sides of the middle of the frame, so that the center of gravity of the frame is concentrated at the center of the frame. Although the stability of the vehicle is enhanced, the torsion resistance of the left and right longitudinal beams of the frame is poor and tearing is prone to occur. It is necessary to increase the rigidity of the longitudinal beams and the structural strength of the frame, and the performance of the whole vehicle and frame is reduced. Summary of the invention

[0005] The purpose of the utility model is to solve the problem of poor torsional resistance of the left and right longitudinal beams after the battery installation unit is set on the frame of the existing new energy logistics vehicle, and proposes a segmented frame for a new energy logistics vehicle, which not only forms a fixed installation space for the battery installation unit in the middle, but also does not change the space for installing the cargo compartment on the frame, thereby improving the applicability of the frame.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a segmented frame of a new energy logistics vehicle, including a front frame section, a rear frame section, and a middle frame section, wherein the front frame section and the rear frame section are overlapped and fixed on a lower middle frame section to form an integral frame;

[0007] The front section of the frame and the middle section of the frame are overlapped and fixed in a manner that the lower wing surface of the front section right longitudinal beam at the rear end of the front section of the frame and the upper wing surface of the middle section right longitudinal beam at the front end of the middle section of the frame are overlapped and fixed, and the lower wing surface of the front section left longitudinal beam at the rear end of the front section of the frame and the upper wing surface of the middle section left longitudinal beam at the front end of the middle section of the frame are overlapped and fixed; the outer side surfaces of the front section right longitudinal beam and the middle section right longitudinal beam are fixedly connected together by a front section outer connecting plate; the outer side surfaces of the front section left longitudinal beam and the middle section left longitudinal beam are fixedly connected together by another front section outer connecting plate;

[0008] The overlap fixing method of the rear section of the frame and the middle section of the frame is that the lower wing surface of the rear section right longitudinal beam at the front end of the rear section of the frame and the upper wing surface of the middle section right longitudinal beam at the rear end of the middle section of the frame are overlapped and fixed, and the lower wing surface of the rear section left longitudinal beam at the rear end of the front section of the frame and the upper wing surface of the middle section left longitudinal beam at the rear end of the middle section of the frame are overlapped and fixed; the outer side surfaces of the rear section right longitudinal beam and the middle section right longitudinal beam are fixedly connected together by a rear section outer connecting plate; the outer side surfaces of the rear section left longitudinal beam and the middle section left longitudinal beam are fixedly connected together by another rear section outer connecting plate;

[0009] The middle part of the integral frame, the front section connecting beam of the frame, the middle section connecting beam of the frame, and the rear section connecting beam of the frame form a concave contour space.

[0010] Furthermore, in the utility model, the lower wing surface of each longitudinal beam and the upper wing surface of the corresponding longitudinal beam are overlapped and fixed together by a plurality of fixing bolts.

[0011] Furthermore, in the utility model, the front section outer connecting plate and the rear section outer connecting plate are fixed by riveting with fixed rivets.

[0012] Furthermore, in the utility model, the cross-sections of the front section outer connecting plate and the rear section outer connecting plate are groove-shaped.

[0013] Furthermore, in the utility model, the concave contour space is a reserved installation space for a battery mounting unit on the vehicle frame.

[0014] The beneficial effects of the utility model are as follows: compared with the prior art, a fixed installation space is formed in the middle part for the battery installation unit, and the use space of the cargo compartment frame on the frame is not changed, thereby improving the applicability of the frame, protecting the battery from external collisions, and effectively improving the battery life; the battery is installed and arranged on the middle section of the frame between the front section and the rear section of the frame, so that the center of gravity of the frame is concentrated at the center position of the frame, thereby enhancing the stability of the vehicle; the front section, the middle section and the rear section of the frame are connected by external connecting plates (front section external connecting plates, rear section external connecting plates), which can effectively ensure the connection strength of the frame and extend the service life of the segmented frame assembly of the new energy logistics vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a segmented frame of a new energy logistics vehicle of the utility model;

[0016] Figure 2 yes Figure 1 A top view of

[0017] Figure 3 yes Figure 1 A schematic diagram of the structure of the decomposed state;

[0018] Figure 4This is a schematic diagram of the structure of a new energy logistics vehicle in which the front section of the segmented frame and the middle section of the frame are overlapped and fixed;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the front section outer connecting plate of a segmented frame of a new energy logistics vehicle of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of a rear section outer connecting plate of a segmented frame of a new energy logistics vehicle of the utility model.

[0021] As shown in the figure: 1. front section of the frame, 1-1. right longitudinal beam of the front section, 1-2. left longitudinal beam of the front section, 2. fixing rivets, 3. outer connecting plate of the front section, 4. middle section of the frame, 4-1. right longitudinal beam of the middle section, 4-2. left longitudinal beam of the middle section, 5. fixing bolts, 6. outer connecting plate of the rear section, 7. rear section of the frame, 7-1. right longitudinal beam of the rear section, 7-2. left longitudinal beam of the rear section, 8. connecting cross beam of the front section of the frame, 9. connecting cross beam of the middle section of the frame, 10. connecting cross beam of the rear section of the frame. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 4 As shown, a segmented frame of a new energy logistics vehicle includes a frame front section 1, a frame rear section 7, and a frame middle section 4. The frame middle section 4 is overlapped and fixed below the frame front section 1 and the frame rear section 7. The frame front section 1, the frame rear section 7, and the frame middle section 4 form an integral frame.

[0024] The overlapping and fixing method of the front section 1 of the frame and the middle section 4 of the frame is that the lower wing surface of the front section right longitudinal beam 1-1 at the rear end of the front section 1 and the upper wing surface of the middle section right longitudinal beam 4-1 at the front end of the middle section 4 of the frame are overlapped together and fixedly connected by multiple fixing bolts 5, and the lower wing surface of the front section left longitudinal beam 1-2 at the rear end of the front section 1 and the upper wing surface of the middle section left longitudinal beam 4-2 at the front end of the middle section 4 of the frame are overlapped together and fixedly connected by multiple fixing bolts 5; the outer side surfaces of the front section right longitudinal beam 1-1 and the middle section right longitudinal beam 4-1 at the overlapping and fixing position are fixedly connected together by a front section outer connecting plate 3 under the riveting of multiple fixing rivets 2; the outer side surfaces of the front section left longitudinal beam 1-2 and the middle section left longitudinal beam 4-2 at the overlapping and fixing position are fixedly connected together by another front section outer connecting plate 3 under the riveting of multiple fixing rivets 2;

[0025] The overlapping and fixing method of the rear section 7 of the frame and the middle section 4 of the frame is that the lower wing surface of the rear section right longitudinal beam 7-1 at the front end of the rear section of the frame 7 and the upper wing surface of the middle section right longitudinal beam 4-1 at the rear end of the middle section 4 of the frame are overlapped together and fixedly connected by a plurality of fixing bolts 5, and the lower wing surface of the rear section left longitudinal beam 7-2 at the rear end of the front section of the frame 1 and the upper wing surface of the middle section left longitudinal beam 4-2 at the rear end of the middle section 4 of the frame are overlapped together and fixedly connected by a plurality of fixing bolts 5; the outer side surfaces of the rear section right longitudinal beam 7-1 and the middle section right longitudinal beam 4-1 at the overlapping and fixing position are fixedly connected together by a rear section outer connecting plate 6 under the riveting of a plurality of fixing rivets 2; the outer side surfaces of the rear section left longitudinal beam 7-2 and the middle section left longitudinal beam 4-2 at the overlapping and fixing position are fixedly connected together by another rear section outer connecting plate 6 under the riveting of a plurality of fixing rivets 2;

[0026] The middle part of the integral frame, the front section connecting beam 8 of the frame, the middle section connecting beam 9 of the frame, and the rear section connecting beam 10 of the frame form a concave contour space.

[0027] like Figure 4 As shown, in this embodiment, the lower wing surface of each longitudinal beam and the upper wing surface of the corresponding longitudinal beam are overlapped and fixed by multiple fixing bolts 5. This is the best solution in this embodiment. Because the automobile frame has cold work hardening characteristics, the use of welding fixed connection will reduce the frame strength; therefore, the best solution for fixing the outer side surface of each longitudinal beam and the corresponding outer connecting plate is to fix them together by riveting with multiple fixing rivets 2.

[0028] like Figures 5 and 6 As shown, the cross-sections of the front section outer connecting plate 3 and the rear section outer connecting plate 6 are groove-shaped. Since the bending and torsion resistance of the groove-shaped cross-section is better than that of the plate with the same thickness, the optimal cross-section of the outer connecting plate in this embodiment is groove-shaped.

[0029] like Figures 1 to 3 As shown, the concave contour space in the middle of the overall frame is the reserved space for the installation of the battery installation unit on the frame. This implementation solves the problem that the frame of the new energy logistics vehicle can form a fixed installation space for the battery installation unit without changing the space for the cargo compartment on the frame, while improving the applicability of the frame.

[0030] The specific working principle of the utility model is as follows: first, the front section 1 of the frame and the rear section 7 of the frame are overlapped on the middle section 4 of the frame, and the upper wing surface and the lower wing surface of the longitudinal beam corresponding to the overlap are fixedly connected together by a plurality of fixing bolts 5; then, the outer side surface of the overlap of the front section 1 of the frame and the middle section 4 of the frame are fixedly connected together by the corresponding outer connecting plate under the riveting of a plurality of fixing rivets 2; finally, the outer side surface of the overlap of the rear section 7 of the frame and the middle section 4 of the frame are fixedly connected together by the corresponding outer connecting plate under the riveting of a plurality of fixing rivets 2;

[0031] The front section 1, the middle section 4 and the rear section 7 of the frame are overlapped and fixed to form a whole, and together with the front section connecting beam 8, the middle section connecting beam 9 and the rear section connecting beam 10 of the frame, a concave contour space located in the middle of the overall frame is formed, which can form a fixed installation space for the battery installation unit without changing the space for mounting the cargo compartment on the frame, and at the same time improve the applicability of the frame.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any simple modification, equivalent replacement, improvement, etc. made within the technical concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A segmented frame of a new energy logistics vehicle, comprising a front frame section (1) and a rear frame section (7), characterized in that: It also includes a vehicle frame middle section (4), which is overlapped and fixed below the vehicle frame front section (1) and the vehicle frame rear section (7) to form an integral vehicle frame; The front section (1) and the middle section (4) of the frame are overlapped and fixed in such a manner that the lower wing surface of the front section right longitudinal beam (1-1) at the rear end of the front section (1) and the upper wing surface of the middle section right longitudinal beam (4-1) at the front end of the middle section (4) of the frame are overlapped and fixed, and the lower wing surface of the front section left longitudinal beam (1-2) at the rear end of the front section (1) and the upper wing surface of the middle section left longitudinal beam (4-2) at the front end of the middle section (4) of the frame are overlapped and fixed; the outer side surfaces of the front section right longitudinal beam (1-1) and the middle section right longitudinal beam (4-1) are fixedly connected together by a front section outer connecting plate (3); the outer side surfaces of the front section left longitudinal beam (1-2) and the middle section left longitudinal beam (4-2) are fixedly connected together by another front section outer connecting plate (3); The frame rear section (7) and the frame middle section (4) are overlapped and fixed in a manner that the lower wing surface of the rear section right longitudinal beam (7-1) at the front end of the frame rear section (7) and the upper wing surface of the middle section right longitudinal beam (4-1) at the rear end of the frame middle section (4) are overlapped and fixed, and the lower wing surface of the rear section left longitudinal beam (7-2) at the rear end of the frame front section (1) and the upper wing surface of the middle section left longitudinal beam (4-2) at the rear end of the frame middle section (4) are overlapped and fixed; the outer side surfaces of the rear section right longitudinal beam (7-1) and the middle section right longitudinal beam (4-1) are fixedly connected together by a rear section outer connecting plate (6); the outer side surfaces of the rear section left longitudinal beam (7-2) and the middle section left longitudinal beam (4-2) are fixedly connected together by another rear section outer connecting plate (6); The middle part of the integral frame, the front section connecting crossbeam (8) of the frame, the middle section connecting crossbeam (9) of the frame, and the rear section connecting crossbeam (10) of the frame form a concave contour space.

2. The sectional frame of a new energy logistics vehicle according to claim 1 is characterized in that: The lower wing surface of each longitudinal beam and the upper wing surface of the corresponding longitudinal beam are overlapped and fixed together by a plurality of fixing bolts (5).

3. A sectional frame of a new energy logistics vehicle according to claim 1 or 2, characterized in that: The front section outer connecting plate (3) and the rear section outer connecting plate (6) are fixed by riveting using fixing rivets (2).

4. The sectional frame of a new energy logistics vehicle according to claim 3 is characterized in that: The cross-sections of the front section outer connecting plate (3) and the rear section outer connecting plate (6) are groove-shaped.

5. The sectional frame of a new energy logistics vehicle according to claim 1 is characterized in that: The concave contour space is a reserved installation space for the battery installation unit.

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