Vehicle chassis, circumferential lightning protection and explosion protection strategy and assembling method

Abstract

The invention provides a vehicle chassis and a circumferential anti-thunder and anti-explosion strategy and an assembling method, and relates to the field of anti-thunder and anti-explosion structures and materials.The anti-thunder and anti-explosion strategy is characterized in that a V-shaped structure and armor steel materials are adopted, the V-shaped structure is of a V-shaped double-layer longitudinal double-V shape or a W-shaped transverse double-V shape, and armor steel is DF1600A armor steel; the assembling method comprises the following steps: 1) early-stage preparation: i) vehicle inspection and cleaning; ii) preparing and inspecting parts; 2) assembling the V-shaped structure: i) positioning and preliminarily fixing; ii) mounting the V-shaped structure; the method comprises the steps of (1) carrying out V-shaped structure design, (2) carrying out V-shaped structure design, (3) carrying out armor steel assembling, (1) carrying out cutting and forming, (3) carrying out armor steel positioning and mounting, (4) carrying out overall debugging and inspection, (3) carrying out connection tightness inspection and (3) carrying out protection performance preliminary detection, through the synergistic effect of a V-shaped structure and an armor steel material, the explosion threat with the explosion equivalent not larger than 6 kgTNT can be effectively resisted, and the viability of a 4 * 4 or 6 * 6 wheel type special vehicle in a dangerous environment is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of lightning protection and explosion-proof structures and materials, and particularly to vehicle chassis and circumferential lightning and explosion-proof strategies and assembly methods. Background Technology

[0002] In military operations, counter-terrorism operations, and other hazardous environments, wheeled special vehicles often face threats from landmines, improvised explosive devices (IEDs), and other explosive devices. Existing vehicle protection technologies suffer from limited effectiveness, complex structures, and difficulties in installation when dealing with complex and ever-changing explosion scenarios. This is especially true for 4x4 or 6x6 wheeled special vehicles, where an explosive yield of no more than 6 kg TNT is urgently needed. Therefore, an effective mine and explosion protection strategy and installation method are urgently required to improve vehicle survivability and combat effectiveness, and ensure the normal operation of vehicles and the safety of personnel in hazardous environments. Summary of the Invention

[0003] To address the problems in the background art, this invention provides a vehicle chassis and circumferential lightning and explosion protection strategy and assembly method. Through the synergistic effect of the V-shaped structure and armor steel material, it can effectively resist the threat of explosions with an explosive yield of no more than 6 kg TNT, greatly improving the survivability of 4×4 or 6×6 wheeled special vehicles in dangerous environments.

[0004] The present invention provides a vehicle chassis and a circumferential lightning and explosion protection strategy and assembly method.

[0005] The lightning and explosion protection strategy employs a V-shaped structure and armor steel material. The V-shaped structure can disperse the energy of the explosion shock wave, guiding the impact force generated by the explosion to both sides of the vehicle, reducing the direct impact on the vehicle chassis. The armor steel material, with its high strength and high toughness, provides solid physical protection for the vehicle, resisting the penetration of explosion fragments.

[0006] The assembly method includes the following steps:

[0007] 1) Preliminary preparations:

[0008] i) Vehicle inspection and cleaning: Conduct a comprehensive and detailed inspection of 4×4 or 6×6 wheeled special vehicles, including the structural integrity of the chassis, the flatness of the surface, and the connection status of each component; use professional cleaning tools and cleaning agents to thoroughly remove oil, dust, rust and other impurities from the vehicle chassis and surrounding surfaces to ensure that the installation surface is clean and flat, providing a good foundation for subsequent assembly work.

[0009] ii) Component preparation and inspection: According to the design requirements, prepare the necessary V-shaped structural components, DF1600A armor steel plates, locating pins, bolts, nuts and other components; conduct strict quality inspection on each component, check whether its dimensional accuracy meets the design drawings, and whether there are defects such as cracks, scratches, and deformation on the surface. Replace any non-compliant components in a timely manner to ensure the reliability of the quality of all components.

[0010] 2) V-shaped structure assembly:

[0011] i) Positioning and initial fixing: Determine the installation position of the V-shaped structure based on the design layout of the vehicle chassis;

[0012] ii) Installation of V-shaped structure: Connection is made using locating pins and bolts in the non-protected direction;

[0013] 3) Armor steel assembly:

[0014] i) Cutting and shaping: Based on the shape and size of the vehicle chassis and the circumferential protection area, use professional cutting equipment (such as plasma cutters, laser cutters, etc.) to cut the DF1600A armor steel plates. During the cutting process, strictly control the cutting precision to ensure that the dimensions of the cut armor steel meet the design requirements. After cutting, grind the edges of the armor steel to remove burrs and sharp edges to prevent injury to personnel during installation and use. For some complex-shaped protection areas, the armor steel needs to be bent and shaped using professional bending equipment (such as hydraulic bending machines) according to the bending radius and angle required by the design to ensure that the armor steel can fit well with the vehicle surface.

[0015] ii) Armor Steel Positioning and Installation: Place the cut and shaped armor steel on the vehicle chassis and in the corresponding protective positions around the perimeter. Use locating pins in the non-protective direction for initial positioning. The arrangement of the locating pins should be rationally designed according to the size and shape of the armor steel to ensure that the armor steel will not shift during installation. After positioning, temporarily fix the armor steel to the vehicle surface using spot welding. The spot welds should be evenly distributed, and the spacing between the welds should not be too large to ensure that the armor steel will not loosen during subsequent installation. Then, use bolts and nuts in the non-protective direction to formally connect the armor steel to the vehicle. During the connection process, select appropriate bolt specifications and tightening torque according to the thickness of the armor steel and the stress conditions to ensure a firm and reliable connection. For armor steel in some critical parts, a combination of welding and bolting can be used for reinforcement to further improve its connection strength.

[0016] 4) Overall debugging and inspection:

[0017] i) Connection tightness check: After the V-shaped structure and armor steel are assembled, a comprehensive inspection of all bolted connections is carried out. Using a torque wrench, each bolt is checked and tightened according to the specified tightening torque to ensure that all bolts are tightened in place and the connection is firm and reliable. For the locating pins, check whether they are loose. If they are loose, they should be replaced or re-fixed in time.

[0018] ii) Preliminary inspection of protective performance: The installation quality of the V-shaped structure and armor steel is initially assessed through visual inspection and simple tapping tests; the shape of the V-shaped structure is checked to see if it meets the design requirements and whether there is any deformation or damage; the fit between the armor steel and the vehicle surface is checked to see if there are any gaps or lifting; at the same time, a simple test of the vehicle's driving performance is conducted to check whether there is any abnormal vibration or noise during the vehicle's operation, to ensure that the installation work does not adversely affect the normal driving performance of the vehicle.

[0019] Furthermore, the V-shaped structure is either a double-layered V-shaped longitudinal double V-shape or a W-shaped transverse double V-shape. The double-layered V-shaped longitudinal double V-shape structure further enhances the dispersion capability of the explosive shock wave through its double-layer design. The longitudinal arrangement allows the shock wave to be effectively guided and attenuated along a specific direction during propagation. The W-shaped transverse double V-shape structure constructs multiple protective barriers in the transverse direction. When an explosion occurs on the side of the vehicle, it can disperse and absorb the shock wave from multiple angles, improving the vehicle's circumferential lightning and explosion protection performance.

[0020] Furthermore, in step ii) of the assembly method 2), for the V-shaped double-layer longitudinal double V-shaped structure, the lower V-shaped plate is first placed at the corresponding position on the vehicle chassis, and a high-precision non-protective locating pin is used for initial positioning to ensure the accurate positioning of the lower V-shaped plate. The diameter and length of the locating pin should be precisely selected according to the size of the locating hole on the V-shaped plate to ensure that the locating pin can be tightly inserted into the locating hole and play a good positioning role. Then, temporary bolts are used to initially fix the lower V-shaped plate to the vehicle chassis. The tightening torque of the temporary bolts should not be too large to ensure stability. The lower V-shaped plate should be fixed in place and easily adjustable. After the lower V-shaped plate is initially fixed, place the upper V-shaped plate on top of the lower V-shaped plate according to the design requirements, and use locating pins for positioning to ensure the accurate relative position of the upper and lower V-shaped plates. Then, use bolts and nuts in the non-protected direction to firmly connect the upper and lower V-shaped plates to the vehicle chassis. When tightening the bolts and nuts, follow a certain sequence and tightening torque requirements. Generally, a cross-tightening method is used to gradually tighten the bolts to the specified torque value to ensure the firmness and uniformity of the connection.

[0021] Furthermore, in step ii) of the assembly method 2), for the W-type transverse double V-shaped structure, a high-precision locating pin in the non-protective direction is used for initial positioning to ensure the accurate position of the W-type transverse double V-shaped plate. The diameter and length of the locating pin must be precisely selected according to the size of the locating hole on the W-type transverse double V-shaped plate to ensure that the locating pin can be tightly inserted into the locating hole and play a good positioning role. Then, in the non-protective direction, bolts and nuts are used to firmly connect the W-type transverse double V-shaped plate to the vehicle chassis. When tightening the bolts and nuts, they must be operated in a certain order and according to the tightening torque requirements. Generally, a cross-tightening method is used to gradually tighten the bolts to the specified torque value to ensure the firmness and uniformity of the connection.

[0022] Furthermore, the armor steel is DF1600A armor steel, which has the following mechanical properties: HBW~500, tensile strength~1600MPa, yield strength~1400MPa, elongation~10%, and impact toughness (-40℃)~24J.

[0023] The vehicle chassis and circumferential lightning and explosion protection strategy and assembly method provided by this invention have the following beneficial effects:

[0024] This invention, through the synergistic effect of the V-shaped structure and armor steel material, can effectively resist the threat of explosions with an explosive yield of no more than 6 kg TNT, greatly improving the survivability of 4×4 or 6×6 wheeled special vehicles in dangerous environments.

[0025] Furthermore, the DF1600A armor steel used is a common armor material that is readily available on the market and has a mature production process, ensuring material quality and supply stability. The non-protected locating pins and bolt connections make the vehicle's lightning and explosion protection modification process simple and quick, without requiring specialized and complex equipment and technicians. This allows for the completion of vehicle protection upgrades in a short time, reducing unnecessary structural complexity, lowering the probability of malfunctions, and improving the vehicle's combat response speed. Detailed Implementation

[0026] To make the objectives, solutions, and advantages of the technical solutions of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below. Unless otherwise stated, the terms used herein have their ordinary meanings in the art.

[0027] Example 1:

[0028] This invention proposes a vehicle chassis and circumferential lightning and explosion protection strategy and installation method. The lightning and explosion protection strategy adopts a V-shaped structure and armor steel material. The V-shaped structure can disperse the energy of the explosion shock wave and guide the impact force generated by the explosion to both sides of the vehicle, reducing the direct impact on the vehicle chassis. The armor steel material, with its high strength and high toughness, provides solid physical protection for the vehicle and resists the penetration of explosion fragments.

[0029] The V-shaped structure can be either a double-layered V-shaped longitudinal double V-shape or a W-shaped transverse double V-shape. The double-layered V-shaped longitudinal double V-shape further enhances the ability to disperse blast shock waves through its double-layer design. The longitudinal arrangement allows the shock wave to be effectively guided and attenuated along a specific direction during propagation. The W-shaped transverse double V-shape constructs multiple protective barriers in the transverse direction. When an explosion occurs on the side of the vehicle, it can disperse and absorb the shock wave from multiple angles, improving the vehicle's circumferential lightning and explosion protection performance.

[0030] The armor steel is DF1600A armor steel, and its mechanical properties are as follows: HBW~500, tensile strength ~1600MPa, yield strength ~1400MPa, elongation ~10%, impact toughness (-40℃) ~24J;

[0031] The assembly method includes the following steps:

[0032] 1) Preliminary preparations:

[0033] i) Vehicle inspection and cleaning: Conduct a comprehensive and detailed inspection of 4×4 or 6×6 wheeled special vehicles, including the structural integrity of the chassis, the flatness of the surface, and the connection status of each component; use professional cleaning tools and cleaning agents to thoroughly remove oil, dust, rust and other impurities from the vehicle chassis and surrounding surfaces to ensure that the installation surface is clean and flat, providing a good foundation for subsequent assembly work.

[0034] ii) Component preparation and inspection: According to the design requirements, prepare the necessary V-shaped structural components, DF1600A armor steel plates, locating pins, bolts, nuts and other components; conduct strict quality inspection on each component, check whether its dimensional accuracy meets the design drawings, and whether there are defects such as cracks, scratches, and deformation on the surface. Replace any non-compliant components in a timely manner to ensure the reliability of the quality of all components.

[0035] 2) V-shaped structure assembly:

[0036] i) Positioning and initial fixing: Determine the installation position of the V-shaped structure based on the design layout of the vehicle chassis;

[0037] ii) Installation of V-shaped structure: Connection is made using locating pins and bolts in the non-protected direction;

[0038] For a V-shaped double-layer longitudinal double-V structure, first place the lower V-shaped plate in the corresponding position on the vehicle chassis. Use high-precision non-protective locating pins for initial positioning to ensure the accurate placement of the lower V-shaped plate. The diameter and length of the locating pins must be precisely selected according to the size of the locating holes on the V-shaped plate to ensure that the locating pins can be tightly inserted into the locating holes and play a good positioning role. Then, use temporary bolts to initially fix the lower V-shaped plate to the vehicle chassis. The tightening torque of the temporary bolts should not be too large to ensure stable fixation of the V-shaped plate and facilitate subsequent... Further adjustments are recommended; after the lower V-shaped plate is initially fixed, place the upper V-shaped plate on top of the lower V-shaped plate according to the design requirements, and use locating pins for positioning to ensure the accurate relative position of the upper and lower V-shaped plates; then, use bolts and nuts in the non-protected direction to firmly connect the upper and lower V-shaped plates to the vehicle chassis; when tightening the bolts and nuts, operate in a certain order and according to the required tightening torque, generally using a cross-tightening method, gradually tightening the bolts to the specified torque value to ensure the firmness and uniformity of the connection;

[0039] For the W-type transverse double V-shaped structure, high-precision locating pins in the non-protected direction are used for initial positioning to ensure the accurate placement of the W-type transverse double V-shaped plate. The diameter and length of the locating pins must be precisely selected according to the size of the locating holes on the W-type transverse double V-shaped plate to ensure that the locating pins can be tightly inserted into the locating holes and play a good positioning role. Then, in the non-protected direction, bolts and nuts are used to firmly connect the W-type transverse double V-shaped plate to the vehicle chassis. When tightening the bolts and nuts, they must be operated in a certain order and according to the required tightening torque. Generally, a cross-tightening method is used to gradually tighten the bolts to the specified torque value to ensure the firmness and uniformity of the connection.

[0040] 3) Armor steel assembly:

[0041] i) Cutting and shaping: Based on the shape and size of the vehicle chassis and the circumferential protection area, use professional cutting equipment (such as plasma cutters, laser cutters, etc.) to cut the DF1600A armor steel plates. During the cutting process, strictly control the cutting precision to ensure that the dimensions of the cut armor steel meet the design requirements. After cutting, grind the edges of the armor steel to remove burrs and sharp edges to prevent injury to personnel during installation and use. For some complex-shaped protection areas, the armor steel needs to be bent and shaped using professional bending equipment (such as hydraulic bending machines) according to the bending radius and angle required by the design to ensure that the armor steel can fit well with the vehicle surface.

[0042] ii) Armor Steel Positioning and Installation: Place the cut and shaped armor steel on the vehicle chassis and in the corresponding protective positions around the perimeter. Use locating pins in the non-protective direction for initial positioning. The arrangement of the locating pins should be rationally designed according to the size and shape of the armor steel to ensure that the armor steel will not shift during installation. After positioning, temporarily fix the armor steel to the vehicle surface using spot welding. The spot welds should be evenly distributed, and the spacing between the welds should not be too large to ensure that the armor steel will not loosen during subsequent installation. Then, use bolts and nuts in the non-protective direction to formally connect the armor steel to the vehicle. During the connection process, select appropriate bolt specifications and tightening torque according to the thickness of the armor steel and the stress conditions to ensure a firm and reliable connection. For armor steel in some critical parts, a combination of welding and bolting can be used for reinforcement to further improve its connection strength.

[0043] 4) Overall debugging and inspection:

[0044] i) Connection tightness check: After the V-shaped structure and armor steel are assembled, a comprehensive inspection of all bolted connections is carried out. Using a torque wrench, each bolt is checked and tightened according to the specified tightening torque to ensure that all bolts are tightened in place and the connection is firm and reliable. For the locating pins, check whether they are loose. If they are loose, they should be replaced or re-fixed in time.

[0045] ii) Preliminary inspection of protective performance: The installation quality of the V-shaped structure and armor steel is initially assessed through visual inspection and simple tapping tests; the shape of the V-shaped structure is checked to see if it meets the design requirements and whether there is any deformation or damage; the fit between the armor steel and the vehicle surface is checked to see if there are any gaps or lifting; at the same time, a simple test of the vehicle's driving performance is conducted to check whether there is any abnormal vibration or noise during the vehicle's operation, to ensure that the installation work does not adversely affect the normal driving performance of the vehicle.

[0046] The following points should be noted in this article:

[0047] 1. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0048] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A vehicle chassis and circumferential lightning and explosion protection strategy and assembly method, characterized in that, The lightning and explosion protection strategy employs a V-shaped structure and armor steel material. The V-shaped structure can disperse the energy of the explosion shock wave, guiding the impact force generated by the explosion to both sides of the vehicle, reducing the direct impact on the vehicle chassis. The armor steel material, with its high strength and high toughness, provides solid physical protection for the vehicle, resisting the penetration of explosion fragments. The assembly method includes the following steps: 1) Preliminary preparations: i) Vehicle inspection and cleaning: Conduct a comprehensive and detailed inspection of 4×4 or 6×6 wheeled special vehicles, including the structural integrity of the chassis, the flatness of the surface, and the connection status of each component; use professional cleaning tools and cleaning agents to thoroughly remove oil, dust, rust and other impurities from the vehicle chassis and surrounding surfaces to ensure that the installation surface is clean and flat, providing a good foundation for subsequent assembly work. ii) Component preparation and inspection: According to the design requirements, prepare the necessary V-shaped structural components, DF1600A armor steel plates, locating pins, bolts, nuts and other components; conduct strict quality inspection on each component, check whether its dimensional accuracy meets the design drawings, and whether there are defects such as cracks, scratches, and deformation on the surface. Replace any non-compliant components in a timely manner to ensure the reliability of the quality of all components. 2) V-shaped structure assembly: i) Positioning and initial fixing: Determine the installation position of the V-shaped structure based on the design layout of the vehicle chassis; ii) Installation of V-shaped structure: Connection is made using locating pins and bolts in the non-protected direction; 3) Armor steel assembly: i) Cutting and shaping: Based on the shape and size of the vehicle chassis and the circumferential protection area, use professional cutting equipment (such as plasma cutters, laser cutters, etc.) to cut the DF1600A armor steel plates. During the cutting process, strictly control the cutting precision to ensure that the dimensions of the cut armor steel meet the design requirements. After cutting, grind the edges of the armor steel to remove burrs and sharp edges to prevent injury to personnel during installation and use. For some complex-shaped protection areas, the armor steel needs to be bent and shaped using professional bending equipment (such as hydraulic bending machines) according to the bending radius and angle required by the design to ensure that the armor steel can fit well with the vehicle surface. ii) Armor Steel Positioning and Installation: Place the cut and shaped armor steel on the vehicle chassis and in the corresponding protective positions around the perimeter. Use locating pins in the non-protective direction for initial positioning. The arrangement of the locating pins should be rationally designed according to the size and shape of the armor steel to ensure that the armor steel will not shift during installation. After positioning, temporarily fix the armor steel to the vehicle surface using spot welding. The spot welds should be evenly distributed, and the spacing between the welds should not be too large to ensure that the armor steel will not loosen during subsequent installation. Then, use bolts and nuts in the non-protective direction to formally connect the armor steel to the vehicle. During the connection process, select appropriate bolt specifications and tightening torque according to the thickness of the armor steel and the stress conditions to ensure a firm and reliable connection. For armor steel in some critical parts, a combination of welding and bolting can be used for reinforcement to further improve its connection strength. 4) Overall debugging and inspection: i) Connection tightness check: After the V-shaped structure and armor steel are assembled, a comprehensive inspection of all bolted connections is carried out. Using a torque wrench, each bolt is checked and tightened according to the specified tightening torque to ensure that all bolts are tightened in place and the connection is firm and reliable. For the locating pins, check whether they are loose. If they are loose, they should be replaced or re-fixed in time. ii) Preliminary inspection of protective performance: The installation quality of the V-shaped structure and armor steel is initially assessed through visual inspection and simple tapping tests; the shape of the V-shaped structure is checked to see if it meets the design requirements and whether there is any deformation or damage; the fit between the armor steel and the vehicle surface is checked to see if there are any gaps or lifting; at the same time, a simple test of the vehicle's driving performance is conducted to check whether there is any abnormal vibration or noise during the vehicle's operation, to ensure that the installation work does not adversely affect the normal driving performance of the vehicle.

2. The vehicle chassis and circumferential lightning and explosion protection strategy and assembly method according to claim 1, characterized in that: The V-shaped structure is either a double-layered V-shaped longitudinal double V-shape or a W-shaped transverse double V-shape. The double-layered V-shaped longitudinal double V-shape structure further enhances the dispersion capability of the blast shock wave through its double-layer design. The longitudinal arrangement allows the shock wave to be effectively guided and attenuated along a specific direction during propagation. The W-shaped transverse double V-shape structure constructs multiple protective barriers in the transverse direction. When an explosion occurs on the side of the vehicle, it can disperse and absorb the shock wave from multiple angles, improving the vehicle's circumferential lightning and explosion protection performance.

3. The vehicle chassis and circumferential lightning and explosion protection strategy and assembly method according to claim 2, characterized in that: In step ii) of the assembly method 2), for the V-shaped double-layer longitudinal double V-shaped structure, first place the lower V-shaped plate in the corresponding position on the vehicle chassis, and use a high-precision non-protective locating pin for initial positioning to ensure the accurate position of the lower V-shaped plate; the diameter and length of the locating pin should be precisely selected according to the size of the locating hole on the V-shaped plate to ensure that the locating pin can be tightly inserted into the locating hole and play a good positioning role; then, use temporary bolts to initially fix the lower V-shaped plate to the vehicle chassis. The tightening torque of the temporary bolts should not be too large to ensure stable fixation. The V-shaped plate should be fixed in a way that facilitates subsequent adjustments. After the lower V-shaped plate is initially fixed, place the upper V-shaped plate on top of the lower V-shaped plate according to the design requirements, and use locating pins for positioning to ensure the accurate relative position of the upper and lower V-shaped plates. Then, use bolts and nuts in the non-protected direction to firmly connect the upper and lower V-shaped plates to the vehicle chassis. When tightening the bolts and nuts, operate in a certain order and according to the required tightening torque. Generally, a cross-tightening method is used to gradually tighten the bolts to the specified torque value to ensure the firmness and uniformity of the connection.

4. The vehicle chassis and circumferential lightning and explosion protection strategy and assembly method according to claim 2, characterized in that: In step ii) of the assembly method 2), for the W-type transverse double V-shaped structure, a high-precision locating pin in the non-protective direction is used for initial positioning to ensure the accurate position of the W-type transverse double V-shaped plate. The diameter and length of the locating pin must be precisely selected according to the size of the locating hole on the W-type transverse double V-shaped plate to ensure that the locating pin can be tightly inserted into the locating hole and play a good positioning role. Then, in the non-protective direction, the W-type transverse double V-shaped plate is firmly connected to the vehicle chassis using bolts and nuts. When tightening the bolts and nuts, the operation should be carried out in a certain order and according to the tightening torque requirements. Generally, a cross-tightening method is used to gradually tighten the bolts to the specified torque value to ensure the firmness and uniformity of the connection.

5. The vehicle chassis and circumferential lightning and explosion protection strategy and assembly method according to claim 1, characterized in that: The armor steel is DF1600A armor steel, and its mechanical properties are as follows: HBW~500, tensile strength ~1600MPa, yield strength ~1400MPa, elongation ~10%, impact toughness (-40℃) ~24J.