Weight-reduction type vehicle lower control box

Abstract

The utility model discloses a weight reduction type vehicle lower control box which comprises a main frame and a surrounding plate, the main frame comprises a top bearing part and a front side supporting part, the top bearing part comprises two top cross beams which are arranged in parallel, the end corner of each top cross beam is provided with an end lifting lug, and the front side supporting part is provided with a front side supporting part; two middle lifting lugs are arranged in the middle of each top cross beam at intervals; the front side supporting part comprises two vertical beams vertically connected to the front side of the top cross beam and at least one supporting vertical plate perpendicular to the top cross beam. The coaming comprises a top plate covering the top of the main frame, a bottom plate covering the bottom of the main frame, and a front side plate, a rear side plate, a left side plate and a right side plate covering the periphery of the main frame. According to the mode, the main frame is optimized through stress distribution, the bearing capacity is guaranteed, meanwhile, weight reduction is achieved, load distribution is dispersed through eight lifting lugs, stress concentration is avoided, redundant materials are reduced, the weight is further reduced, and light weight is achieved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle undercarriage technology, and in particular to a heavy-duty vehicle undercarriage control box. Background Technology

[0002] In the installation of electrical components under the train, the undercarriage box plays an important role. It not only provides a stable installation foundation for various electrical components, but also needs to meet extremely stringent requirements for strength, sealing, and electrical clearance.

[0003] However, traditional designs often employ overly conservative and redundant structures to meet these stringent requirements, resulting in a significant increase in the weight of the carriages and negatively impacting the overall train's operating speed. An excessively heavy carriage undoubtedly increases the power consumption of the EMU, limiting its speed and hindering it from achieving optimal performance in high-speed operation.

[0004] Therefore, how to effectively reduce the weight of the enclosure while ensuring it meets the necessary strength requirements has become a pressing technical challenge. Utility Model Content

[0005] The main technical problem solved by this utility model is to provide a weight-reducing vehicle under-control box. By optimizing the main frame structure through stress distribution, the load-bearing capacity can be guaranteed while achieving weight reduction. The eight lifting lugs distribute the load, avoid stress concentration, reduce redundant materials, further reduce weight, and achieve lightweighting.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a heavy-duty vehicle under-control box, including: a main frame, the main frame including a main frame and a surrounding plate connected to the periphery of the main frame;

[0007] The main framework includes:

[0008] The top load-bearing part includes two parallel top beams, each top beam having an end lug at one end corner, and two middle lugs spaced apart at the middle position of each top beam.

[0009] The front support portion includes two vertical beams connected to the front side of the top crossbeam, and at least one support plate arranged perpendicular to the top crossbeam.

[0010] The enclosure includes: a top panel covering the top of the main frame, a bottom panel covering the bottom of the main frame, and front, rear, left, and right side panels covering the perimeter of the main frame.

[0011] In a preferred embodiment of this utility model, the upright beam and the supporting upright plate are fixedly connected to the top crossbeam by a continuous weld.

[0012] In a preferred embodiment of this utility model, both the end lugs and the middle lugs are stamped and formed in an L-shape. The vertical arms of the end lugs and the middle lugs are welded and fixed to the side of the top crossbeam. The horizontal arms of the end lugs and the middle lugs are provided with lifting holes to suspend the entire box body under the vehicle body.

[0013] In a preferred embodiment of this utility model, the support plate shown is provided with weight reduction holes, and the distribution of the weight reduction holes is based on the stress distribution area of ​​the support plate.

[0014] In a preferred embodiment of this utility model, the top plate, bottom plate, front side plate, rear side plate, left side plate and right side plate are all made of aluminum alloy by stamping, and the plate surface is provided with weight reduction grooves.

[0015] In a preferred embodiment of this utility model, the area between the support plate and the front side plate forms a high-voltage equipment installation area.

[0016] In a preferred embodiment of this utility model, a bottom inspection door is provided on the bottom plate, and a side inspection door is provided on the front side plate, with the side inspection door corresponding to the location of the high-voltage equipment installation area.

[0017] The beneficial effects of this utility model are:

[0018] The main frame structure is optimized based on stress distribution, overcoming the limitation of traditional undercarriage boxes where "strength depends on weight." While ensuring strength and load-bearing capacity, weight reduction is achieved. Eight lifting lugs are used to connect to the vehicle body, distributing the load to eight support points, avoiding concentrated loads, and reducing redundant materials required due to local overload, thereby effectively reducing the overall weight. At the same time, weight reduction and lightweighting significantly reduce manufacturing and transportation costs, meeting the demands of market competition. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0020] Figure 1 This is a schematic diagram of a preferred embodiment of the under-control box for a heavy-duty vehicle according to the present invention;

[0021] Figure 2 This is a schematic diagram of a preferred embodiment of the main frame of this utility model;

[0022] Figure 3 This is a front view of a preferred embodiment of the under-control box for a heavy-duty vehicle according to this utility model;

[0023] Figure 4 This is a side view of a preferred embodiment of the under-body control box for a heavy-duty vehicle according to this utility model;

[0024] Figure 5 This is a top view of a preferred embodiment of the under-body control box for a heavy-duty vehicle according to this utility model;

[0025] Figure 6 This is a bottom view of a preferred embodiment of the under-body control box for a heavy-duty vehicle according to this utility model;

[0026] The components in the attached diagram are labeled as follows:

[0027] 1. Top crossbeam, 2. Vertical beam, 3. Support plate, 4. Weight reduction hole, 5. End lifting lug, 6. Middle lifting lug, 7. Lifting hole, 8. Top plate, 9. Bottom plate, 10. Front side plate, 11. Rear side plate, 12. Left side plate, 13. Right side plate, 14. Bottom inspection door, 15. Side inspection door, 16. High-voltage equipment installation area. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 6 This utility model relates to a preferred embodiment of a control box for a heavy-duty vehicle.

[0031] The reduced-weight vehicle under-control box includes a main frame. The main frame uses topological calculation to calculate each location of the installed equipment. The strength of the supporting frame is derived from the weight of the equipment and the operating conditions. An appropriate margin is set on this basis to further ensure the extreme operating conditions, thereby designing the corresponding frame structure.

[0032] In one exemplary embodiment, the main frame includes a main frame and a perimeter panel connected to the perimeter of the main frame.

[0033] Specifically, the first part is the main frame, which includes a top load-bearing part and a front support part. The top load-bearing part includes two parallel top beams 1, which serve as the main load-bearing components and bear the top load of the entire box.

[0034] The front support section includes two vertical beams 2 connected to the front of the top crossbeam 1 and at least one support plate 3 arranged perpendicularly to the top crossbeam 1. The vertical beams 2 and the support plate 3 are fixedly connected to the top crossbeam 1 by continuous welds, which ensures the integrity and stability of the structure and can effectively transfer loads, ensuring that the main frame has good load-bearing performance when under stress.

[0035] Furthermore, the support plate 3 shown is provided with weight reduction holes 4. The distribution of the weight reduction holes 4 is based on the stress distribution area of ​​the support plate 3. Without weakening the structural strength, the amount of material used is effectively reduced, and the lightweight design of the box is achieved.

[0036] This utility model adopts the above-mentioned optimized main frame, which achieves weight reduction while ensuring strength and load-bearing capacity, and does not increase manufacturing costs, thus improving the overall practicality and competitiveness of the product.

[0037] Based on the above structure, each top beam 1 has an end lug 5 at its corner and two middle lugs 6 spaced apart at the middle position of each top beam 1, forming an eight-point suspension system.

[0038] Furthermore, both the end lugs 5 and the middle lugs 6 are stamped and formed in an L-shape. The vertical arms of the end lugs 5 and the middle lugs 6 are welded and fixed to the side of the top crossbeam 1. The horizontal arms of the end lugs 5 and the middle lugs 6 are provided with lifting holes 7 to suspend the entire box body under the vehicle body.

[0039] The eight-point suspension system distributes the load to eight support points by evenly arranging lifting lugs at both ends and the middle of the box, avoiding concentrated loads and reducing redundant materials required due to local overload, thereby effectively reducing the overall weight.

[0040] Secondly, there are the enclosure panels, which include the top panel 8 covering the top of the main frame, the bottom panel 9 covering the bottom of the main frame, and the front side panel 10, rear side panel 11, left side panel 12 and right side panel 13 covering the four sides of the main frame. These panels together constitute the outer shell of the enclosure, which serves as a protective function and also provides space and convenience for the installation and maintenance of internal equipment.

[0041] Furthermore, the top plate 8, bottom plate 9, front side plate 10, rear side plate 11, left side plate 12 and right side plate 13 are all made of aluminum alloy by stamping, and the plate surface is provided with weight reduction grooves. The weight reduction grooves are also based on the stress distribution area of ​​the plate to ensure that the amount of material used is reduced to the maximum extent without weakening the structural strength.

[0042] The area between the supporting plate 3 and the front side plate 10 forms a high-voltage equipment installation area 16, which allows the high-voltage equipment to be centrally arranged, facilitating installation and maintenance.

[0043] The base plate 9 is provided with a bottom inspection door 14, and the front side plate 10 is provided with a side inspection door 15. The side inspection door 15 corresponds to the high-voltage equipment installation area 16. The inspection door allows maintenance personnel to quickly and conveniently access the equipment that needs to be inspected, thus improving maintenance efficiency.

[0044] The beneficial effects of this utility model's heavy-duty vehicle under-control box are:

[0045] The main frame structure was optimized based on stress distribution, avoiding the bulky problem caused by the unreasonable structure of traditional undercarriage boxes. While ensuring strength and load-bearing capacity, the weight reduction effect was achieved without increasing manufacturing costs, thus improving the overall practicality and competitiveness of the product.

[0046] The vehicle is connected to the car body with eight lifting lugs, which distributes the load to eight support points, avoiding concentrated loads and reducing the amount of redundant material needed due to local overload, thereby effectively reducing the overall weight.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A control box for a heavy-duty vehicle, characterized in that, include: The main frame includes a main frame and a surrounding panel connected to the periphery of the main frame; The main framework includes: The top load-bearing part includes two parallel top beams, each top beam having an end lug at one end corner, and two middle lugs spaced apart at the middle position of each top beam. The front support portion includes two vertical beams connected to the front side of the top crossbeam, and at least one support plate arranged perpendicular to the top crossbeam. The enclosure includes: a top panel covering the top of the main frame, a bottom panel covering the bottom of the main frame, and front, rear, left, and right side panels covering the perimeter of the main frame.

2. The control box for the reduced-weight vehicle according to claim 1, characterized in that, The vertical beams and supporting plates are fixedly connected to the top crossbeam by continuous welds.

3. The control box for the reduced-weight vehicle according to claim 1, characterized in that, Both the end lugs and the middle lugs are stamped and formed in an L-shape. The vertical arms of the end lugs and the middle lugs are welded and fixed to the side of the top crossbeam. The horizontal arms of the end lugs and the middle lugs are provided with lifting holes to suspend the entire box body under the vehicle body.

4. The control box for the reduced-weight vehicle according to claim 1, characterized in that, The support plate shown has weight-reducing holes, and the distribution of the weight-reducing holes is based on the stress distribution area of ​​the support plate.

5. The control box for the reduced-weight vehicle according to claim 1, characterized in that, The top plate, bottom plate, front side plate, rear side plate, left side plate, and right side plate are all made of aluminum alloy by stamping, and the plate surface is provided with weight reduction grooves.

6. The heavy-duty vehicle under-control box according to claim 1, characterized in that, The area between the support plate and the front side plate forms the high-voltage equipment installation area.

7. The control box for the reduced-weight vehicle according to claim 6, characterized in that, The bottom plate is provided with a bottom inspection door, and the front side plate is provided with a side inspection door, the side inspection door being located in the high-voltage equipment installation area.

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