Lightweight anti-bending trapezoidal framework structure of frame longitudinal beam

Abstract

The utility model relates to the technical field of vehicle frames, in particular to a light-weight anti-bending trapezoidal framework structure of a frame longitudinal beam, which comprises two connecting blocks, an upper wing plate and a lower wing plate are fixedly connected between the connecting blocks, the upper wing plate is positioned on the upper side of the lower wing plate, and two symmetrical protective shells are arranged on the outer sides of the upper wing plate and the lower wing plate. A plurality of uniformly distributed trapezoidal web plates are fixedly connected between the upper wing plate and the lower wing plate, each trapezoidal web plate comprises a trapezoidal frame, a main buffer block is fixedly connected to the upper end of each trapezoidal frame, two symmetrical supporting rods are fixedly connected between the inner walls of the trapezoidal frames, each supporting rod comprises a main rod, a storage groove is formed in the upper end of each main rod, and an auxiliary rod is inserted into each storage groove; the springs are fixedly connected between the auxiliary rods and the inner bottom ends of the containing grooves, the combined design of the trapezoidal web plates and the supporting rods can be achieved, stress can be evenly dispersed when the frame longitudinal beam bears bending loads, the bending resistance is effectively improved, and the bearing requirements of a vehicle under different working conditions can be met.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame technology, specifically a lightweight, bending-resistant trapezoidal skeleton structure for the longitudinal beams of a vehicle frame. Background Technology

[0002] As a key load-bearing component of the vehicle frame, the longitudinal beams are the "backbone" of the entire vehicle structure, bearing various complex loads from the vehicle body, cargo, and road impacts during driving. Their performance directly affects the vehicle's safety, stability, and fuel economy, and has a decisive impact on the vehicle's overall performance and service life.

[0003] In traditional vehicle frame longitudinal beam designs, the common structural forms are solid or simple hollow rectangular cross-sections. While solid longitudinal beams offer high strength, they also have significant drawbacks. Due to their solid structure, they require a large amount of material, increasing the frame's weight. In today's automotive industry, which prioritizes energy conservation, emission reduction, and lightweighting, an excessively heavy frame increases fuel consumption, reduces fuel economy, and also raises manufacturing costs. Furthermore, solid longitudinal beams exhibit uneven stress distribution under load, leading to localized stress concentrations. This makes them more susceptible to fatigue failure in certain areas, thus affecting the frame's lifespan.

[0004] While simple hollow rectangular cross-section longitudinal beams reduce weight to some extent, they also present several problems. Although the hollow structure reduces material usage, its bending resistance is relatively weak. During vehicle operation, especially on bumpy roads or under heavy loads, the frame longitudinal beams need to withstand significant bending loads. Due to their simple structure, hollow rectangular cross-section longitudinal beams cannot effectively distribute stress evenly throughout the structure, making them prone to deformation or even fracture under large loads, thus failing to meet the load-bearing requirements of vehicles under various operating conditions.

[0005] Therefore, a lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of the vehicle frame is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of a vehicle frame. The combined design of the trapezoidal web and support rods enables the longitudinal beams of the frame to evenly distribute stress when subjected to bending loads, effectively improving bending resistance and meeting the load-bearing requirements of vehicles under different operating conditions.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam, comprising two connecting blocks, with an upper wing plate and a lower wing plate fixedly connected between the connecting blocks. The upper wing plate is located above the lower wing plate. Two mutually symmetrical protective shells are provided on the outer sides of the upper and lower wing plates. Multiple evenly distributed trapezoidal web plates are fixedly connected between the upper and lower wing plates. Each trapezoidal web plate includes a trapezoidal frame, with a main buffer block fixedly connected to the upper end of the trapezoidal frame. Two mutually symmetrical support rods are fixedly connected between the inner walls of the trapezoidal frame. This design of the trapezoidal web plates and support rods allows the vehicle frame longitudinal beam to evenly distribute stress when subjected to bending loads, effectively improving bending resistance and meeting the load-bearing requirements of vehicles under different working conditions.

[0008] Preferably, the support rod includes a main rod, the upper end of which is chiseled with a storage groove, a secondary rod is inserted into the storage groove, and a spring is fixedly connected between the secondary rod and the bottom end of the storage groove.

[0009] Preferably, the upper wing plate has two symmetrical slots at its upper end, and the bottom of the protective shell has a locking block that engages with the slots. By setting the slots, the installation and removal of the protective shell can be made more convenient.

[0010] Preferably, the upper end of the trapezoidal frame has two symmetrical upper mounting holes, and the bottom end of the trapezoidal frame has three evenly distributed lower mounting holes. By providing the upper and lower mounting holes, technicians can easily install the trapezoidal web between the upper and lower flanges.

[0011] Preferably, the outer end of the trapezoidal frame is chiseled with multiple evenly distributed energy-absorbing grooves, and the inner wall of the energy-absorbing groove is fixedly connected with a secondary buffer block. By setting the energy-absorbing groove and the secondary buffer block, the pressure on the entire equipment can be absorbed and dispersed, stress concentration can be avoided, fatigue damage at the connection can be reduced, and the service life of the upper and lower wing plates can be improved.

[0012] Preferably, both the secondary buffer block and the primary buffer block are made of rubber material. By using rubber material to make the secondary buffer block and the primary buffer block, they can have strong buffering properties, thereby improving the stress dispersion effect of the equipment when the entire equipment is subjected to external forces.

[0013] Preferably, the spring is made of stainless steel and the surface of the spring is coated with anti-rust paint. By setting the spring and coating its surface with anti-rust paint, the spring is less prone to corrosion during long-term use, thereby improving the service life of the spring.

[0014] Compared with the prior art, this utility model provides a lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of a vehicle frame, which has the following beneficial effects:

[0015] 1. The trapezoidal web and support rod combination design, together with the buffer structure, evenly distributes bending load stress, significantly improves the bending resistance of the frame longitudinal beams, and meets the load-bearing requirements of different working conditions such as heavy load and high speed driving.

[0016] 2. The upper wing plate is equipped with a slot to engage with the protective shell's locking block, and the trapezoidal web plate is equipped with upper and lower mounting holes, making the installation and disassembly of the protective shell and the installation of the trapezoidal web plate simple, reducing maintenance costs and improving work efficiency.

[0017] 3. The rust-proof treatment of the springs, the setting of rubber buffer blocks and the design of energy-absorbing grooves effectively reduce stress concentration and fatigue damage, enhance the stability of the longitudinal beam structure of the frame, extend the service life, and ensure the safety of vehicle operation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a perspective view of the interior of this utility model;

[0020] Figure 3 This is a perspective view of the upper and lower wing plates of this utility model;

[0021] Figure 4 This is a perspective view of the trapezoidal frame portion of this utility model;

[0022] Figure 5 This is a perspective view of the support rod portion of this utility model.

[0023] In the picture:

[0024] 1. Connecting block; 2. Upper wing plate; 201. Slot; 3. Lower wing plate; 4. Protective shell; 5. Trapezoidal web plate; 6. Trapezoidal frame; 601. Upper mounting hole; 602. Lower mounting hole; 603. Energy absorption groove; 604. Secondary buffer block; 7. Main buffer block; 8. Support rod; 9. Main rod; 10. Storage groove; 11. Secondary rod; 12. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1 - Figure 4This embodiment of a lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam includes two connecting blocks 1. An upper wing plate 2 and a lower wing plate 3 are fixedly connected between the connecting blocks 1. The upper wing plate 2 is located above the lower wing plate 3. Two mutually symmetrical protective shells 4 are provided on the outer sides of the upper wing plate 2 and the lower wing plate 3. Multiple evenly distributed trapezoidal web plates 5 are fixedly connected between the upper wing plate 2 and the lower wing plate 3. The trapezoidal web plate 5 includes a trapezoidal frame 6. A main buffer block 7 is fixedly connected to the upper end of the trapezoidal frame 6. Two mutually symmetrical support rods 8 are fixedly connected between the inner walls of the trapezoidal frame 6. The combined design of the trapezoidal web plate and the support rods enables the vehicle frame longitudinal beam to evenly distribute stress when subjected to bending loads, effectively improving bending resistance and meeting the load-bearing requirements of the vehicle under different working conditions.

[0028] Two symmetrical support rods 8 are fixedly connected between the inner walls of the trapezoidal frame 6. The support rods 8 cooperate with the trapezoidal frame 6 to enhance the strength and stability of the trapezoidal web 5. The support rods 8 include a main rod 9, with a receiving groove 10 cut into the upper end of the main rod 9. A secondary rod 11 is inserted into the receiving groove 10. A spring 12 is fixedly connected between the secondary rod 11 and the bottom end of the receiving groove 10. The spring 12 is made of stainless steel and has anti-rust paint on its surface to ensure that it is not easily corroded during long-term use, thereby improving the service life of the spring 12. When the trapezoidal web 5 is subjected to external force, the secondary rod 11 will move along the receiving groove 10 into the main rod 9, and the spring 12 will deform. Through this deformation, the stress on the trapezoidal frame 6 is dispersed, avoiding the occurrence of stress concentration.

[0029] The combination of the trapezoidal web 5 and the support rod 8 allows the longitudinal beams of the frame to evenly distribute stress when subjected to bending loads. During vehicle operation, the longitudinal beams of the frame are subjected to bending loads from various factors such as uneven road surfaces and cargo weight. At this time, the trapezoidal structure of the trapezoidal web 5 can evenly transfer the load to various parts, while the support rod 8 further disperses the stress through the deformation of its internal spring 12, reducing the damage to the structure caused by excessive local stress. This ability to evenly distribute stress effectively improves the bending resistance of the longitudinal beams of the frame, enabling them to meet the load-bearing requirements of the vehicle under different working conditions. Whether it is heavy-duty transportation or high-speed driving, the structural stability and reliability of the longitudinal beams of the frame can be guaranteed, thereby improving the safety and service life of the vehicle.

[0030] Please see Figure 3 - Figure 5 The support rod 8 includes a main rod 9, with a storage groove 10 cut into the upper end of the main rod 9. A secondary rod 11 is inserted into the storage groove 10. A spring 12 is fixedly connected between the secondary rod 11 and the bottom end of the storage groove 10. Two symmetrical slots 201 are cut into the upper end of the upper wing plate 2. A locking block is provided at the bottom of the protective shell 4. The locking block engages with the slots 201. By setting the slots 201, the installation and disassembly of the protective shell 4 can be made more convenient.

[0031] Please see Figure 4 The trapezoidal frame 6 has two symmetrical upper mounting holes 601 at its upper end and three evenly distributed lower mounting holes 602 at its bottom end. By setting the upper mounting holes 601 and lower mounting holes 602, technicians can easily install the trapezoidal web plate 5 between the upper wing plate 2 and the lower wing plate 3. The outer end of the trapezoidal frame 6 has multiple evenly distributed energy-absorbing grooves 603. The inner wall of the energy-absorbing grooves 603 is fixedly connected to the secondary buffer block 604. By setting the energy-absorbing grooves 603 and the secondary buffer block 604, the pressure on the entire equipment can be absorbed and dispersed, stress concentration can be avoided, fatigue damage at the connection can be reduced, and the service life of the upper wing plate 2 and the lower wing plate 3 can be improved. The secondary buffer block 604 and the main buffer block 7 are both made of rubber material. By using rubber material to make the secondary buffer block 604 and the main buffer block 7, they can have strong buffering properties, thereby improving the stress dispersion effect of the equipment when the entire equipment is subjected to external force.

[0032] Please see Figure 5 The spring 12 is made of stainless steel and has anti-rust paint on its surface. By setting the spring 12 and coating its surface with anti-rust paint, the spring 12 is not easily corroded during long-term use, thereby improving the service life of the spring 12.

[0033] The working principle of the above embodiments is as follows:

[0034] When the entire device is subjected to external force, the main buffer block 7 and the support rod 8 can act as a buffer. At the same time, under the action of external force, the trapezoidal frame 6 will undergo slight deformation. With the deformation of the spring 12, the auxiliary rod 11 can move along the receiving groove 10 into the main rod 9, thereby dispersing the stress on the trapezoidal frame 6, reducing fatigue damage at the connection, and improving the structural stability and service life of the frame longitudinal beam. The combined design of the trapezoidal web and the support rod can make the frame longitudinal beam evenly disperse the stress when subjected to bending load, effectively improving the bending resistance and meeting the load-bearing requirements of the vehicle under different working conditions.

[0035] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections.

[0036] Any connection method that can achieve its beneficial effect can be implemented, so the specific structural composition and working principle will not be described in detail in this embodiment.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam, comprising two connecting blocks (1), characterized in that: The connecting blocks (1) are fixedly connected to an upper wing plate (2) and a lower wing plate (3). The upper wing plate (2) is located on the upper side of the lower wing plate (3). The upper wing plate (2) and the lower wing plate (3) are provided with two mutually symmetrical protective shells (4) on their outer sides. The upper wing plate (2) and the lower wing plate (3) are fixedly connected to a plurality of evenly distributed trapezoidal web plates (5). The trapezoidal web plate (5) includes a trapezoidal frame (6). The upper end of the trapezoidal frame (6) is fixedly connected to a main buffer block (7). The inner walls of the trapezoidal frame (6) are fixedly connected to two mutually symmetrical support rods (8).

2. The lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of a vehicle frame according to claim 1, characterized in that: The support rod (8) includes a main rod (9), the upper end of which is chiseled with a storage groove (10), a secondary rod (11) is inserted into the storage groove (10), and a spring (12) is fixedly connected between the secondary rod (11) and the bottom end of the storage groove (10).

3. The lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of a vehicle frame according to claim 1, characterized in that: The upper wing plate (2) has two symmetrical slots (201) at its upper end, and the bottom of the protective shell (4) is provided with a locking block, which engages with the slots (201).

4. The lightweight, bending-resistant trapezoidal frame structure for the longitudinal beams of a vehicle frame according to claim 1, characterized in that: The upper end of the trapezoidal frame (6) has two symmetrical upper mounting holes (601), and the lower end of the trapezoidal frame (6) has three evenly distributed lower mounting holes (602).

5. The lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam according to claim 1, characterized in that: The trapezoidal frame (6) has multiple evenly distributed energy-absorbing grooves (603) at its outer end, and a secondary buffer block (604) is fixedly connected to the inner wall of the energy-absorbing groove (603).

6. The lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam according to claim 5, characterized in that: Both the secondary buffer block (604) and the main buffer block (7) are made of rubber material.

7. The lightweight, bending-resistant trapezoidal frame structure for a vehicle frame longitudinal beam according to claim 2, characterized in that: The spring (12) is made of stainless steel and the surface of the spring (12) is coated with anti-rust paint.

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