A rear bumper beam assembly for engineering vehicles and the engineering vehicle

Abstract

This application relates to the field of engineering vehicle technology and discloses a rear bumper beam assembly for engineering vehicles, comprising: a support assembly for detachable connection to the vehicle frame, a first bumper beam, a second bumper beam, and at least one buffer assembly. The first bumper beam is fixedly connected to the support assembly, and the first and second bumper beams are arranged parallel and spaced apart. The buffer assembly is detachably connected to both the first and second bumper beams. The buffer assembly is used to compensate for the displacement of the second bumper beam through elastic deformation during a collision, while absorbing the impact force. This rear bumper beam assembly has a simple structure and improves the safety performance of engineering vehicles by using the first bumper beam, the second bumper beam, and the buffer assembly to absorb and dissipate force during a collision. It is also easy to install and disassemble, reducing maintenance costs. This application also discloses an engineering vehicle.

Description

Technical Field

[0001] This application relates to the field of engineering vehicle technology, and in particular to a rear bumper beam assembly for engineering vehicles and the engineering vehicles themselves. Background Technology

[0002] Currently, the main transportation equipment used for transporting materials such as coal and sand in large open-pit mines and other off-highway operation sites is engineering vehicles. Due to their complex and variable working environment, they often face harsh operating conditions. During operation, the vehicle body is easily impacted by hard objects such as gravel, which can cause damage or loosening of related components, thereby affecting the service life and safety of the entire vehicle.

[0003] Especially in the chassis of engineering vehicles, structural components such as axles and suspension systems are highly susceptible to damage or loosening due to prolonged exposure to harsh environments and impacts from gravel, affecting the vehicle's normal operation and durability. Currently, most rear-end protection designs for engineering vehicles involve welding the rear bumper beam directly to the main frame. However, this design suffers from insufficient structural strength and weak protective performance; once damaged, complete replacement and repair are difficult and costly. Therefore, optimizing the protective structure of engineering vehicles to improve protective performance and ease of maintenance has become an urgent problem to be solved. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a rear anti-collision beam assembly for engineering vehicles and the engineering vehicle itself.

[0005] This utility model provides a rear anti-collision beam assembly for engineering vehicles, comprising: a support assembly for detachably connecting to the frame of the engineering vehicle, a first anti-collision beam, a second anti-collision beam, and at least one buffer assembly. The first anti-collision beam is fixedly connected to the support assembly, and the first and second anti-collision beams are arranged in parallel and spaced apart. The buffer assembly is detachably connected to the first and second anti-collision beams respectively. The buffer assembly is used to compensate for the displacement of the second anti-collision beam through elastic deformation in the event of a collision, while absorbing the impact force brought by the collision.

[0006] In one embodiment, the buffer assembly includes an elastic element and a mounting plate assembly, wherein the elastic element is detachably connected to the first anti-collision beam and the second anti-collision beam respectively via the mounting plate assembly.

[0007] In one embodiment, the mounting plate assembly includes a first mounting plate and a second mounting plate. One end of the elastic member is fixedly connected to the first mounting plate, and the other end is fixedly connected to the second mounting plate. The first mounting plate is detachably connected to the first anti-collision beam, and the second mounting plate is detachably connected to the second anti-collision beam.

[0008] In one embodiment, the mounting plate assembly further includes a first fastener and a second fastener. The first anti-collision beam has a plurality of first mounting holes, and the second anti-collision beam has a plurality of second mounting holes. The first fastener detachably connects the first mounting plate to the first anti-collision beam through the first mounting holes, and the second fastener detachably connects the second mounting plate to the second anti-collision beam through the second mounting holes.

[0009] In one embodiment, the first anti-collision beam is made of a metal material, and the second anti-collision beam is made of at least one of glass fiber resin, polypropylene composite material, and carbon fiber.

[0010] In one embodiment, both the first anti-collision beam and the second anti-collision beam are arc-shaped structures, and the two ends of the first anti-collision beam are fixedly connected to one side of the support component.

[0011] In one embodiment, the support assembly includes a support member and connectors for detachably connecting to the frame of an engineering vehicle, wherein the two ends of the first anti-collision beam are fixedly connected to one side of the support member, and the connectors are respectively disposed at both ends of the support member on the side away from the first anti-collision beam.

[0012] In one embodiment, the support assembly further includes a support column and a reinforcing plate. The support column is disposed between the support member and the first anti-collision beam, and the reinforcing plate is disposed at the included angle between the connector and the support member.

[0013] In one embodiment, the support assembly further includes limiting plates, which are respectively disposed at both ends of the support member on the side near the first anti-collision beam, for limiting the displacement of the second anti-collision beam.

[0014] In one embodiment, the rear bumper assembly further includes a crumple guide hole disposed on the second bumper.

[0015] Another embodiment of this application provides an engineering vehicle including a frame and the aforementioned rear bumper beam assembly, the rear bumper beam assembly being detachably connected to the frame.

[0016] The beneficial effects of this utility model are as follows: Multiple energy absorption and force relief are achieved through the first anti-collision beam, the second anti-collision beam, and the buffer assembly. When the rear anti-collision beam assembly is impacted, the second anti-collision beam deforms or breaks to achieve the first level of energy absorption and force relief, reducing part of the impact force. The buffer assembly converts the impact force into elastic potential energy through elastic deformation, and is simultaneously compressed, causing the second anti-collision beam to move closer to the first anti-collision beam, forming the second level of energy absorption and force relief, further reducing the impact force. The first anti-collision beam can also reduce the impact force through a third level of energy absorption and force relief via deformation. This design significantly reduces the impact force generated by collisions, improving the safety performance of engineering vehicles. Furthermore, the buffer assembly is detachably connected to both the first and second anti-collision beams, enabling not only rapid assembly of the rear anti-collision beam assembly but also easy disassembly. After a collision, the affected parts of the rear anti-collision beam assembly can be removed for easy replacement with new components, greatly reducing maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of the rear anti-collision beam assembly from one angle according to an embodiment of the present invention.

[0019] Figure 2 This is a structural schematic diagram of the rear anti-collision beam assembly from another angle according to an embodiment of the present invention.

[0020] Figure 3 This is a frontal view of the rear bumper beam assembly of an embodiment of the present invention in a non-impact state.

[0021] Figure 4 This is a frontal schematic diagram of the rear anti-collision beam assembly under impact conditions according to an embodiment of the present invention. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0024] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0026] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0027] Please refer to Figure 1-4 The illustration shows a rear anti-collision beam assembly for an engineering vehicle provided in an embodiment of the present invention, comprising: a support assembly 1 for detachable connection to the frame of the engineering vehicle, a first anti-collision beam 2, a second anti-collision beam 3, and at least one buffer assembly 4. The first anti-collision beam 2 is fixedly connected to the support assembly 1, and the first anti-collision beam 2 and the second anti-collision beam 3 are arranged in parallel and spaced apart. The buffer assembly 4 is detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3 respectively. The buffer assembly 4 is used to compensate for the displacement of the second anti-collision beam 3 through elastic deformation in the event of a collision, while absorbing the impact force brought by the collision.

[0028] In this embodiment, the buffer component 4 can drive the second anti-collision beam 3 to move relative to it, thereby buffering the impact force on the second anti-collision beam 3 caused by a collision. The buffer component 4 includes several arrangement methods. The first method is that one buffer component 4 is set in the middle of the first anti-collision beam 2 and the second anti-collision beam 3 and is detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3 respectively. The second method is that two buffer components 4 are respectively set at both ends of the first anti-collision beam 2 and the second anti-collision beam 3 and are detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3 respectively, which can further improve the overall stability and reduce the impact force, thereby improving the protective effect. The third method is that three buffer components 4 are respectively set at intervals in the middle and at both ends of the first anti-collision beam 2 and the second anti-collision beam 3 and are detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3 respectively, which can further improve the overall stability and safety, and further improve the protective effect. In addition, the number of buffer components 4 can be further increased as needed to further improve stability and reliability. In this embodiment, a third arrangement is adopted, with three buffer components 4 respectively spaced apart in the middle and at both ends of the first anti-collision beam 2 and the second anti-collision beam 3 and respectively detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3. If one of the buffer components 4 is damaged, the remaining buffer components 4 can continue to work, which has better reliability and stability.

[0029] When the rear bumper beam assembly is impacted, the second bumper beam 3 deforms or breaks to absorb energy and reduce the impact force as a first layer. The buffer component 4 converts the impact force into elastic potential energy through elastic deformation, and the buffer component is compressed, causing the second bumper beam 3 to move closer to the first bumper beam 2, forming a second layer of energy absorption and further reducing the impact force. The first bumper beam 2 can also absorb energy and reduce the impact force as a third layer through deformation. This design greatly reduces the impact force generated by the collision and improves the safety performance of engineering vehicles. The support component 1 can both support the first bumper beam 2 and... The second anti-collision beam 3 provides support and forms a buffer between the first anti-collision beam 2 and the vehicle frame, preventing immediate damage to the engineering vehicle from a collision and improving overall safety. At the same time, the buffer component 4 is detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3, and the support component 1 is detachably connected to the vehicle frame. This not only enables the rapid assembly of the rear anti-collision beam assembly but also facilitates its disassembly. After a collision, the affected parts of the rear anti-collision beam assembly can be removed to facilitate the replacement of new parts, greatly reducing maintenance costs.

[0030] In one embodiment, the buffer assembly 4 includes an elastic element 41 and a mounting plate assembly 42, wherein the elastic element 41 is detachably connected to the first anti-collision beam 2 and the second anti-collision beam 3 via the mounting plate assembly 42.

[0031] like Figures 1-4As shown, in this embodiment, the elastic element 41 is fixedly connected to the mounting plate assembly 42. When a collision occurs, the elastic element 41 compensates for the displacement of the second anti-collision beam 3 through elastic deformation, while absorbing the impact force brought by the collision. When a collision occurs, the second anti-collision beam 3 is compressed, causing it to move closer to the first anti-collision beam 2. At the same time, the elastic element 41 is compressed, absorbing the impact force and converting it into elastic energy. After the collision ends, under the elastic force of the elastic element 41, the second anti-collision beam 3 moves away from the first anti-collision beam 2, thereby automatically returning to its original state.

[0032] In one embodiment, the mounting plate assembly 42 includes a first mounting plate 421 and a second mounting plate 422. One end of the elastic member 41 is fixedly connected to the first mounting plate 421 and the other end is fixedly connected to the second mounting plate 422. The first mounting plate 421 is detachably connected to the first anti-collision beam 2, and the second mounting plate 422 is detachably connected to the second anti-collision beam 3.

[0033] like Figures 3-4 As shown, the first mounting plate 421 and the second mounting plate 422 not only enable the elastic element 41 to absorb the impact force generated by the collision more stably, but also facilitate disassembly and maintenance, reducing maintenance costs.

[0034] In one embodiment, the elastic element 41 is at least one of a spring, a bellows, or a shock-absorbing rubber tube.

[0035] In this embodiment, the elastic element 41 is a spring. The spring has two arrangement methods: the first is that multiple small-diameter springs are spaced apart between the first mounting plate 421 and the second mounting plate 422; the second is that a single large-diameter spring is used between the first mounting plate 421 and the second mounting plate 422. This embodiment adopts the second arrangement method, using a single large-diameter spring between the first mounting plate 421 and the second mounting plate 422. The spring absorbs the impact force generated by the collision, converting it into elastic force and damping the shock, thereby mitigating the impact force on the first anti-collision beam 2 and preventing deformation of the first anti-collision beam 2 under minor impacts, thus saving repair costs.

[0036] In one embodiment, the mounting plate assembly 42 further includes a first fastener (not shown in the figure) and a second fastener (not shown in the figure). The first anti-collision beam 2 is provided with a plurality of first mounting holes 21, and the second anti-collision beam 3 is provided with a plurality of second mounting holes 31. The first fasteners detachably connect the first mounting plate 421 to the first anti-collision beam 2 through the first mounting holes 21, and the second fasteners detachably connect the second mounting plate 422 to the second anti-collision beam 3 through the second mounting holes 31.

[0037] like Figures 1-2As shown, the first mounting hole 21 penetrates the first anti-collision beam 2, and the second mounting hole 31 penetrates the second anti-collision beam 3. The second mounting hole 31 not only facilitates disassembly and maintenance but also serves as a crumple zone guide. When the impact force generated by a collision is excessive, because the second mounting hole 31 bears relatively less stress than other areas of the second anti-collision beam 3, the second anti-collision beam 3 first fractures and deforms in the area of ​​the second mounting hole 31, thereby achieving fracture energy absorption and reducing the damage to the first anti-collision beam 2 caused by the collision.

[0038] In this embodiment, the first fastener includes a bolt and a nut, and the second fastener includes a bolt and a nut.

[0039] In one embodiment, the first anti-collision beam 2 is made of metal, and the second anti-collision beam 3 is made of at least one of glass fiber resin, polypropylene composite material, and carbon fiber.

[0040] The metal material can be, for example, steel, aluminum, copper, etc. In this embodiment, the first anti-collision beam 2 is made of carbon steel, and the second anti-collision beam 3 is made of glass fiber resin. The second anti-collision beam 3, made of glass fiber resin, will fracture under significant impact, thus absorbing energy during fracture and reducing damage to the first anti-collision beam 2. The first anti-collision beam 2, made of carbon steel, has increased rigidity and reduced deformation caused by impact.

[0041] In one embodiment, both the first anti-collision beam 2 and the second anti-collision beam 3 are arc-shaped structures, and the two ends of the first anti-collision beam 2 are fixedly connected to one side of the support component 1.

[0042] like Figures 1-4 As shown, the first anti-collision beam 2 and the second anti-collision beam 3 are designed with an arc-shaped structure to improve bending stiffness and resist deformation better when subjected to impact.

[0043] In one embodiment, the support assembly 1 includes a support member 11 and a connector 12 for detachably connecting to the frame of the engineering vehicle. The two ends of the first anti-collision beam 2 are fixedly connected to one side of the support member 11, and the connectors 12 are respectively disposed at the two ends of the support member 11 on the side away from the first anti-collision beam 2.

[0044] like Figures 1-2 As shown, the connector 12 is provided with a connection hole 121, and the connector 12 is detachably connected to the frame of the engineering vehicle through the connection hole 121.

[0045] In one embodiment, the support assembly 1 further includes a support column 13 and a reinforcing plate 14. The support column 13 is disposed between the support member 11 and the first anti-collision beam 2, and the reinforcing plate 14 is disposed at the included angle between the connector 12 and the support member 11.

[0046] like Figures 1-4As shown, in this embodiment, the support column 13 is located in the middle of the support member 11 and the first anti-collision beam 2, which can effectively support the first anti-collision beam 2 and reduce its deformation. The reinforcing plate 14 can improve the structural strength and rigidity of the support assembly 1 and resist structural deformation caused by collision.

[0047] In one embodiment, the support assembly 1 further includes a limiting plate 15, which is respectively disposed at both ends of the support member 11 on the side near the first anti-collision beam 2, for limiting the displacement of the second anti-collision beam 3.

[0048] like Figures 3-4 As shown, when the impact force generated by the collision is large, after the second anti-collision beam 3 presses against the buffer assembly 4, its two ends contact the limiting plate 15. The limiting plate 15 restricts the second anti-collision beam 3 from continuing to compress the buffer assembly 4, so that the second anti-collision beam 3 deforms and breaks quickly due to the force, thereby achieving fracture energy absorption and reducing the damage to the first anti-collision beam 2 caused by the collision.

[0049] In one embodiment, the rear bumper beam assembly further includes a crumple guide hole 5, which is disposed on the second bumper beam 3.

[0050] like Figures 1-2 As shown, by setting the collapse guide hole 5, the second anti-collision beam 3 is made to break and collapse and deform according to the set area, thereby realizing the energy absorption of the fracture and reducing the damage to the first anti-collision beam 2 caused by the collision.

[0051] Working principle:

[0052] When the impact force of the collision is small, the second anti-collision beam 3 is squeezed, causing the second anti-collision beam 3 to move closer to the first anti-collision beam 2. At the same time, the elastic element 41 is compressed, absorbing the impact force and converting it into elastic force. When the collision ends, under the action of the elastic force of the elastic element 41, the second anti-collision beam 3 moves away from the first anti-collision beam 2, thereby automatically returning to its original state.

[0053] When the impact force of the collision is large, the second anti-collision beam 3 is squeezed, causing the second anti-collision beam 3 to move closer to the first anti-collision beam 2. At the same time, the elastic element 41 is compressed. After the elastic element 41 is compressed to a certain extent, the two ends of the second anti-collision beam 3 contact the limiting plate 15. The limiting plate 15 restricts the second anti-collision beam 3 from further compressing the elastic element 41. As a result, the second anti-collision beam 3 is subjected to force and, under the action of the second mounting hole 31 and / or the collapse guide hole 5, it quickly breaks and collapses in the set area. The first anti-collision beam 2 is not damaged or is only slightly damaged. After the collision ends, the second anti-collision beam 3 and the elastic element 41 can be disassembled and the damaged parts can be replaced, which greatly reduces the maintenance cost.

[0054] When the impact force of the collision is very large, the elastic element 41 is compressed, the second anti-collision beam 3 breaks and deforms rapidly to absorb energy, the first anti-collision beam 2 deforms after being subjected to the remaining impact force, and the support element 11 forms a buffer between the first anti-collision beam 2 and the vehicle frame and bears the final impact force, avoiding damage to the engineering vehicle in the first moment and improving the overall safety. After the collision, the second anti-collision beam 3, the elastic element 41, the first anti-collision beam 2 and the support component 1 can be disassembled and the damaged parts can be replaced.

[0055] The rear bumper beam assembly of this embodiment can be applied to mining dump trucks, and of course it can also be applied to other engineering vehicles such as heavy trucks, without limitation.

[0056] Another embodiment of this application provides an engineering vehicle, including a frame and the aforementioned rear bumper beam assembly, the rear bumper beam assembly being detachably connected to the frame.

[0057] The engineering vehicle in this embodiment uses the aforementioned rear anti-collision beam assembly, which not only improves overall safety but also facilitates installation and disassembly, reducing maintenance costs.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A rear bumper beam assembly for engineering vehicles, characterized in that, include: A support assembly (1), a first anti-collision beam (2), a second anti-collision beam (3), and at least one buffer assembly (4) are detachably connected to the frame of an engineering vehicle. The first anti-collision beam (2) is fixedly connected to the support assembly (1). The first anti-collision beam (2) and the second anti-collision beam (3) are arranged in parallel and spaced apart. The buffer assembly (4) is detachably connected to the first anti-collision beam (2) and the second anti-collision beam (3) respectively. The buffer assembly (4) is used to compensate for the displacement of the second anti-collision beam (3) by elastic deformation when a collision occurs, while absorbing the impact force brought by the collision.

2. The rear bumper beam assembly according to claim 1, characterized in that, The buffer assembly (4) includes an elastic element (41) and a mounting plate assembly (42), wherein the elastic element (41) is detachably connected to the first anti-collision beam (2) and the second anti-collision beam (3) respectively via the mounting plate assembly (42).

3. The rear bumper beam assembly according to claim 2, characterized in that, The mounting plate assembly (42) includes a first mounting plate (421) and a second mounting plate (422). One end of the elastic member (41) is fixedly connected to the first mounting plate (421), and the other end is fixedly connected to the second mounting plate (422). The first mounting plate (421) is detachably connected to the first anti-collision beam (2), and the second mounting plate (422) is detachably connected to the second anti-collision beam (3).

4. The rear bumper beam assembly according to claim 3, characterized in that, The mounting plate assembly (42) further includes a first fastener and a second fastener. The first anti-collision beam (2) is provided with a plurality of first mounting holes (21), and the second anti-collision beam (3) is provided with a plurality of second mounting holes (31). The first fastener detachably connects the first mounting plate (421) to the first anti-collision beam (2) through the first mounting holes (21), and the second fastener detachably connects the second mounting plate (422) to the second anti-collision beam (3) through the second mounting holes (31).

5. The rear bumper beam assembly according to claim 1, characterized in that, Both the first anti-collision beam (2) and the second anti-collision beam (3) are arc-shaped structures, and the two ends of the first anti-collision beam (2) are fixedly connected to one side of the support component (1).

6. The rear bumper beam assembly according to claim 5, characterized in that, The support assembly (1) includes a support member (11) and a connector (12) for detachably connecting to the frame of the engineering vehicle. The two ends of the first anti-collision beam (2) are fixedly connected to one side of the support member (11), and the connector (12) is respectively located at both ends of the support member (11) away from the first anti-collision beam (2).

7. The rear bumper beam assembly according to claim 6, characterized in that, The support assembly (1) further includes a support column (13) and a reinforcing plate (14). The support column (13) is located between the support member (11) and the first anti-collision beam (2). The reinforcing plate (14) is located at the angle between the connector (12) and the support member (11).

8. The rear bumper beam assembly according to claim 6, characterized in that, The support assembly (1) also includes a limiting plate (15), which is respectively disposed at both ends of the support member (11) on the side close to the first anti-collision beam (2) to limit the displacement of the second anti-collision beam (3).

9. The rear bumper beam assembly according to claim 1, characterized in that, The rear bumper assembly also includes a crumple guide hole (5), which is disposed on the second bumper beam (3).

10. An engineering vehicle, characterized in that, The vehicle includes a frame and a rear bumper beam assembly as described in any one of claims 1-9, the rear bumper beam assembly being detachably connected to the frame.

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