A strength testing component for a new energy vehicle chassis

Abstract

This application provides a strength testing component for a new energy vehicle chassis, relating to the field of new energy vehicle chassis testing. The strength testing component includes: a base support structure, a new energy vehicle chassis, a load-bearing and lateral loading structure, a longitudinal and bottom loading structure, and a rear-end positioning structure. This strength testing component has comprehensive testing capabilities, performing lateral force strength testing, load-bearing and battery-load-bearing beam strength testing, and separate testing of longitudinal strength on both sides and one side. Furthermore, it can independently test the force strength on both sides and one side of the bottom of the new energy vehicle chassis. It aims to meet multiple testing requirements for new energy vehicle chassis, significantly improve testing accuracy, thereby ensuring the safety and reliability of the new energy vehicle chassis and ensuring that the new energy vehicle chassis fully complies with relevant standards and requirements in actual use.

Description

Technical Field

[0001] This application relates to the field of new energy vehicle chassis testing technology, and more specifically, to a strength testing component for a new energy vehicle chassis. Background Technology

[0002] As the "skeleton" of new energy vehicles, the chassis's strength directly affects the vehicle's safety, driving stability, and the protection capabilities of core components such as batteries. During the design and production of automobiles, chassis load testing is required for new energy vehicles, thus giving rise to the new energy vehicle chassis strength testing.

[0003] In related technologies, the strength testing components for new energy vehicle chassis have limited testing capabilities when conducting chassis testing. They only test the chassis's load-bearing strength, lateral compressive strength, and longitudinal compressive strength. However, in real-world environments, such as the impact of a single-sided impact on the longitudinal side of the chassis, the impact of a bottom impact on the lower part of the chassis, and the load-bearing stress at the chassis battery support, existing strength testing components are not suitable for testing the strength of new energy vehicle chassis. Therefore, how to test the longitudinal unilateral stress, bottom stress, and load-bearing stress at the chassis battery support has become a technical problem that needs to be solved. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a strength testing component for a new energy vehicle chassis. This component possesses comprehensive testing capabilities, enabling it to perform lateral stress strength testing, load-bearing and battery-supporting beam strength testing, and separate longitudinal lateral and unilateral stress strength testing on the new energy vehicle chassis. Furthermore, this strength testing component can also independently test the stress strength on both sides and one side of the bottom of the new energy vehicle chassis. This aims to meet multiple testing requirements for new energy vehicle chassis, significantly improve testing accuracy, thereby ensuring the safety and reliability of the new energy vehicle chassis and ensuring that the new energy vehicle chassis fully complies with relevant standards and requirements in actual use.

[0005] The strength testing component for a new energy vehicle chassis according to an embodiment of this application includes: a base support structure, a new energy vehicle chassis, a load-bearing and lateral loading structure, a longitudinal and bottom loading structure, and a rear positioning structure.

[0006] The base support structure supports the new energy vehicle chassis. The load-bearing and lateral loading structure is disposed on both sides of the upper part of the base support structure. The upper part of the load-bearing and lateral loading structure spans across both sides of the new energy vehicle chassis. In the lateral mode, the load-bearing and lateral loading structure can apply pressure to the upper part of the new energy vehicle chassis. In the longitudinal mode, the load-bearing and lateral loading structure can apply pressure to the battery load-bearing structure of the new energy vehicle chassis. The sides of the load-bearing and lateral loading structure can apply pressure to the new energy vehicle chassis. Lateral pressure is applied at multiple points on both sides of the vehicle chassis; the longitudinal and bottom loading structures are located at the front end of the upper part of the base support structure. When the longitudinal and bottom loading structures are pushed forward, they can apply pressure to one or both sides of the longitudinal direction of the new energy vehicle chassis. When the longitudinal and bottom loading structures are pulled backward, they can apply upward pressure to one or both sides of the bottom of the new energy vehicle chassis; the rear end positioning structure is fixedly connected to the rear end of the upper part of the base support structure, and the rear end positioning structure can support one or both sides of the rear end of the new energy vehicle chassis.

[0007] According to some embodiments of this application, the base support structure includes a base, a rear support column, a front support seat, and a spare hinge seat. The rear support column is fixedly connected to both sides of the rear end of the base, and the front support seat is fixedly connected to both sides of the front end of the base. The rear support column and the front support seat respectively support the rear end and the front end of the new energy vehicle chassis. The spare hinge seat is fixedly connected to both sides of the front end of the base and can be hinged to the front end of the new energy vehicle chassis.

[0008] According to some embodiments of this application, the load-bearing and lateral loading structure includes a lateral slide rail, a slide rail-type lateral pressure mechanism, a lateral pressure slider, a first hydraulic cylinder, and a load-bearing pressure mechanism. The lateral slide rails are laterally and equally spaced on the base support structure. There are two slide rail-type lateral pressure mechanisms and two lateral pressure sliders. The two slide rail-type lateral pressure mechanisms are slidably connected to both ends of the plurality of lateral slide rails, and the two lateral pressure sliders are slidably connected to the two slide rail-type lateral pressure mechanisms. The slide rail-type lateral pressure mechanism drives the lateral pressure slider to slide longitudinally. The output end of the first hydraulic cylinder is connected to one side of the two slide rail-type lateral pressure mechanisms respectively. The first hydraulic cylinder is fixedly connected to the base support structure. The load-bearing pressure mechanism is disposed on both sides of the base support structure. The top end of the lateral pressure slider slides laterally along the load-bearing pressure mechanism. The force-applying end of the load-bearing pressure mechanism can be converted from lateral pressure application to longitudinal pressure application.

[0009] According to some embodiments of this application, the slide rail type lateral pressure mechanism includes a heavy-duty slide rail, a limiting mounting plate, a threaded rod, a mounting bracket, and a motor. The heavy-duty slide rail is slidably connected to both ends of a plurality of transverse slide rails. The limiting mounting plate is fixedly connected to both ends of the heavy-duty slide rail. The threaded rod is rotatably connected between the limiting mounting plates at both ends of the heavy-duty slide rail. The threaded rod is threaded through the transverse pressure sliding block. The mounting bracket is fixedly connected to the outside of the limiting mounting plate. The motor is fixedly connected to the mounting bracket, and the output end of the motor is connected to the end of the threaded rod.

[0010] According to some embodiments of this application, the lateral pressure applying slider includes a mounting block, a heavy-duty slider, a lateral wedge-shaped pressure applying block, a lateral arc-shaped pressure applying block, and a limiting slider. The heavy-duty slider is fixedly connected to the bottom end of the mounting block and slidably connected to the slide rail type lateral pressure applying mechanism. The mounting block has a threaded hole, and the slide rail type lateral pressure applying mechanism is threaded through the threaded hole. The slide rail type lateral pressure applying mechanism drives the mounting block through the thread. The lateral wedge-shaped pressure applying block is fixedly connected to the lower end of the inner side of the mounting block, and the lateral arc-shaped pressure applying block is fixedly connected to the upper end of the inner side of the mounting block. The limiting slider is fixedly connected to the lateral arc-shaped pressure applying block and the top end of the mounting block, and the limiting slider slides laterally along the bearing pressure applying mechanism.

[0011] According to some embodiments of this application, the bearing and pressure-applying mechanism includes a limiting slide rod, a bearing platform, a second hydraulic cylinder, and a pressure-applying platform. The limiting slide rod is longitudinally arranged on both sides of the base support structure. The two ends of the bearing platform are slidably connected to the limiting slide rod. A first sliding groove is transversely opened on the lower side of the bearing platform. The top end of the transverse pressure-applying slider is slidably connected to the first sliding groove. The second hydraulic cylinder is fixedly connected to the upper side of the bearing platform. The output end of the second hydraulic cylinder extends out from the lower side of the bearing platform. The pressure-applying platform is rotatably connected to the output end of the second hydraulic cylinder. The pressure-applying platform can switch between transverse and longitudinal directions around the output end of the second hydraulic cylinder.

[0012] According to some embodiments of this application, the longitudinal and bottom loading structure includes a track mounting component, a third hydraulic cylinder, a longitudinal connecting component, a sliding force-applying frame, a first adjusting head, and a swing-type bottom loading component. The track mounting component is fixedly connected to the front end of the base support structure. The third hydraulic cylinder is fixedly connected to the upper end inside the track mounting component. The longitudinal connecting component is fixedly connected to the output end of the third hydraulic cylinder. The two sides of the longitudinal connecting component are slidably connected to the two sides of the upper end of the track mounting component. The sliding force-applying frame is slidably connected to the rear sides of both ends of the longitudinal connecting component. The first adjusting head can be inserted into the inner side of the sliding force-applying frame. The first adjusting head is located at the... Between the inner side of the sliding force-applying frame and the rear side of the longitudinal connecting member, the longitudinal connecting member applies pressure to the sliding force-applying frame through the first adjusting head. The outer side of the sliding force-applying frame can press against one side of the front end of the new energy vehicle chassis. The swing-type bottom loading members are located on both sides of the track mounting member. The bottom end of the swing-type bottom loading member is connected to the base support structure. The first adjusting head can be inserted into the front side of the longitudinal connecting member. The front side of the longitudinal connecting member can push the front end of the swing-type bottom loading member downward through the first adjusting head. The rear end of the swing-type bottom loading member swings upward to apply pressure to the bottom of the new energy vehicle chassis.

[0013] According to some embodiments of this application, the longitudinal connecting member includes a longitudinal connecting frame, a longitudinal slider, a fixing frame, and a first adjusting rail. The longitudinal slider is fixedly connected to both ends of the lower side of the longitudinal connecting frame, and the longitudinal slider is slidably connected to the rail mounting member. The fixing frame is fixedly connected to both ends of the front side of the longitudinal connecting frame, and the first adjusting rail is fixedly connected to the front side of the fixing frame. The first adjusting head can be inserted into the first adjusting rail.

[0014] According to some embodiments of this application, the sliding force-applying frame includes a force-applying plate, an adjusting slide rod, and a second adjusting slide rail. The adjusting slide rod is fixedly connected to both ends of the inner side of the force-applying plate and slides through the longitudinal connecting member. The second adjusting slide rail is fixedly connected to the inner side of the force-applying plate. The first adjusting head is composed of a first adjusting block with a second sliding groove, and the second adjusting slide rail is inserted into the second sliding groove.

[0015] According to some embodiments of this application, the swing-type bottom loading member includes an ear seat, a V-shaped swing frame, a push block, a reinforcing plate, a swing limiting block, a movable lifting force-applying head, and an arc-shaped block. The ear seat is fixedly connected to the base support structure, and the ear seats are respectively located on both sides of the track mounting member. The bottom end of the V-shaped swing frame is rotatably connected to the ear seat. The push block is fixedly connected to the upper side of the front end of the V-shaped swing frame. The reinforcing plate is fixedly connected to the inside of the V-shaped swing frame. The swing limiting block is fixedly connected to the upper side of the rear end of the V-shaped swing frame. The movable lifting force-applying head is hinged to the swing limiting block. Both sides of the swing limiting block and both sides inside the movable lifting force-applying head are set as inclined surfaces. The inclined surfaces of the swing limiting block limit the angle of the movable lifting force-applying head swinging back and forth. The arc-shaped block is fixedly connected to the rear side of the push block. The front side of the longitudinal connecting member can push the arc-shaped block through the first adjusting head.

[0016] The beneficial effects of this application are as follows: During the lateral strength testing of a new energy vehicle chassis, the chassis is placed on a base support structure, with the rear end of the chassis abutting against a tail-end positioning structure. Pressure is gradually applied to both sides of the load-bearing and lateral loading structures to test the lateral force strength of the chassis. The lateral force application points of the load-bearing and lateral loading structures move longitudinally along the load-bearing and lateral loading structures to test the lateral force strength at multiple points on the chassis. During the strength testing of the load-bearing and battery-bearing crossbeams of the new energy vehicle chassis, pressure is applied to the upper side of the chassis from the upper end of the load-bearing and lateral loading structures to test the chassis's load-bearing strength. Furthermore, as the upper end of the load-bearing and lateral loading structures moves longitudinally, the load-bearing strength at multiple points on the chassis can also be tested. When the upper end of the load-bearing and lateral loading structures changes from a lateral to a longitudinal position, the strength of the crossbeams supporting the battery inside the chassis is also tested. During the longitudinal strength test of a new energy vehicle chassis, first, the load-bearing and lateral loading structures are positioned close to both sides of the chassis. These structures restrict the position of the chassis sides. Simultaneously, the longitudinal and bottom loading structures apply longitudinal pressure to both sides of the front end of the chassis. The rear positioning structure supports both sides of the rear end of the chassis. The longitudinal strength of both sides of the longitudinal and bottom loading structures is then tested. Next, the rear positioning structure is adjusted so that it presses against one side of the rear end of the chassis. Then, the longitudinal and bottom loading structures are adjusted to apply pressure to the other side of the front end of the chassis. The stress strength on one longitudinal side of the chassis is then tested. Finally, the support position of the rear positioning structure and the force application position of the longitudinal and bottom loading structures are switched, and the stress strength on the other longitudinal side of the chassis is tested. During the strength testing of the bottom of a new energy vehicle chassis, the load-bearing and lateral loading structures are first operated, with their upper ends pressing against the upper side of the chassis. Simultaneously, the longitudinal and bottom loading structures apply upward pressure to both sides of the bottom front of the chassis, testing the stress strength at the bottom of the chassis. Then, the longitudinal and bottom loading structures are adjusted to apply upward pressure to one side of the chassis bottom, testing the single-sided stress strength at the bottom of the chassis. In summary, this new energy vehicle chassis strength testing component has comprehensive testing capabilities, enabling separate testing of lateral stress strength, load-bearing and battery-supporting crossbeam strength, and longitudinal bilateral and unilateral stress strength. Furthermore, this component can also independently test the stress strength on both sides and one side of the chassis bottom. This aims to meet multiple testing requirements for new energy vehicle chassis, significantly improve testing accuracy, and thus ensure the safety and reliability of the chassis, ensuring that it fully complies with relevant standards and requirements in actual use.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a strength testing component for a new energy vehicle chassis according to an embodiment of this application;

[0020] Figure 2 This is a three-dimensional structural diagram of a base support structure supporting a new energy vehicle chassis according to an embodiment of this application;

[0021] Figure 3 This is a three-dimensional structural diagram showing the connection between the load-bearing and lateral loading structure and the base support structure according to an embodiment of this application;

[0022] Figure 4 This is a three-dimensional structural diagram of the connection between the first hydraulic cylinder and the slide rail type lateral pressure mechanism according to an embodiment of this application;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the transverse pressure sliding block according to an embodiment of this application;

[0024] Figure 6 This is a three-dimensional structural schematic diagram of the bearing and pressure-applying mechanism according to an embodiment of this application;

[0025] Figure 7 This is a three-dimensional structural diagram of the longitudinal and bottom loading structure according to an embodiment of this application;

[0026] Figure 8 This is a three-dimensional structural schematic diagram of the track mounting component according to an embodiment of this application;

[0027] Figure 9 This is a three-dimensional structural diagram of the connection between the third oil cylinder and the longitudinal connecting member according to an embodiment of this application;

[0028] Figure 10 This is a three-dimensional structural diagram of the sliding force-applying frame and the first adjusting head according to an embodiment of this application;

[0029] Figure 11 This is a three-dimensional structural schematic diagram of the swing-type bottom loading member according to an embodiment of this application;

[0030] Figure 12 This is a three-dimensional structural diagram of the tail end positioning structure according to an embodiment of this application.

[0031] Icons: 100 - Base support structure; 110 - Base; 120 - Rear support column; 130 - Front support seat; 140 - Spare hinge seat; 200 - New energy vehicle chassis; 300 - Load-bearing and lateral loading structure; 310 - Lateral slide rail; 320 - Slide rail type lateral pressure mechanism; 321 - Heavy-duty slide rail; 322 - Limiting mounting plate; 323 - Threaded rod; 324 - Mounting bracket; 325 - Motor; 330 - Lateral pressure slider; 331 - Mounting Block; 332-Heavyweight slider; 333-Threaded hole; 334-Transverse wedge-shaped pressure block; 335-Transverse arc-shaped pressure block; 336-Limiting slider; 340-First hydraulic cylinder; 350-Bearing pressure mechanism; 351-Limiting slide rod; 352-Bearing platform; 3521-Bearing plate; 3522-Fixing sleeve; 353-First slide groove; 354-Second hydraulic cylinder; 355-Pressure platform; 3551-Force application seat; 3552-Force application fork; 400-Longitudinal 410 - Bottom loading structure; 411 - Track mounting component; 412 - Longitudinal slide rail; 413 - Hydraulic cylinder seat; 420 - Third hydraulic cylinder; 430 - Longitudinal connector; 431 - Longitudinal connecting frame; 432 - Longitudinal slider; 433 - Fixing frame; 434 - First adjusting track; 440 - Sliding force application frame; 441 - Force application plate; 442 - Adjusting slide rod; 443 - Second adjusting slide rail; 450 - First adjusting head; 451 - First adjusting... 452-Second slide rail; 460-Swing type bottom loading component; 461-Ear seat; 462-V-shaped swing frame; 463-Push block; 464-Reinforcing plate; 465-Swing limit block; 466-Movable lifting force application head; 467-Arc-shaped block; 500-Tail end positioning structure; 510-Positioning mounting component; 511-Positioning mounting seat; 512-Third adjusting slide rail; 520-Second adjusting head; 521-Second adjusting block; 522-Third slide rail. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The strength testing component for a new energy vehicle chassis according to an embodiment of this application is described below with reference to the accompanying drawings.

[0035] Please see Figures 1 to 12 The strength testing component for a new energy vehicle chassis according to an embodiment of this application includes: a base support structure 100, a new energy vehicle chassis 200, a load-bearing and lateral loading structure 300, a longitudinal and bottom loading structure 400, and a rear positioning structure 500.

[0036] Please see Figure 1 The base support structure 100 supports the new energy vehicle chassis 200. The load-bearing and lateral loading structure 300 is located on both sides of the upper part of the base support structure 100, spanning both sides of the new energy vehicle chassis 200. In lateral mode, the load-bearing and lateral loading structure 300 can apply pressure to the upper part of the new energy vehicle chassis 200. In longitudinal mode, the load-bearing and lateral loading structure 300 can apply pressure to the battery support structure of the new energy vehicle chassis 200. The sides of the load-bearing and lateral loading structure 300 can also apply pressure to the new energy vehicle chassis. Lateral pressure is applied at multiple points on both sides of the chassis 200; the longitudinal and bottom loading structure 400 is set at the front end of the upper part of the base support structure 100. When the longitudinal and bottom loading structure 400 is pushed forward, it can apply pressure to one or both sides of the longitudinal direction of the new energy vehicle chassis 200. When the longitudinal and bottom loading structure 400 is pulled backward, it can apply upward pressure to one or both sides of the bottom of the new energy vehicle chassis 200; the tail end positioning structure 500 is fixedly connected to the tail end of the upper part of the base support structure 100. The tail end positioning structure 500 can support one or both sides of the rear end of the new energy vehicle chassis 200.

[0037] In this embodiment, during the lateral strength test of the new energy vehicle chassis 200, the new energy vehicle chassis 200 is placed on the base support structure 100, and the rear end of the new energy vehicle chassis 200 abuts against the tail end positioning structure 500. The load-bearing and lateral loading structure 300 gradually applies pressure to both sides of the new energy vehicle chassis 200 to test the lateral force strength of the new energy vehicle chassis 200. The lateral force application part of the load-bearing and lateral loading structure 300 moves along the longitudinal direction of the load-bearing and lateral loading structure 300 to test the lateral force strength of the new energy vehicle chassis 200 at multiple points. During the strength testing of the load-bearing and battery-bearing crossbeams of the new energy vehicle chassis 200, pressure is applied to the upper side of the new energy vehicle chassis 200 by the upper end of the load-bearing and lateral loading structure 300 to test the load-bearing strength of the new energy vehicle chassis 200. As the upper end of the load-bearing and lateral loading structure 300 moves longitudinally, the load-bearing strength of multiple points of the new energy vehicle chassis 200 can also be tested. When the upper end of the load-bearing and lateral loading structure 300 changes from a lateral to a longitudinal position, the strength of the crossbeam supporting the battery inside the new energy vehicle chassis 200 by the upper end of the load-bearing and lateral loading structure 300 is also tested. During the longitudinal strength test of the new energy vehicle chassis 200, firstly, the load-bearing and lateral loading structures 300 are positioned close to both sides of the new energy vehicle chassis 200, restricting the position of both sides of the new energy vehicle chassis 200. Simultaneously, the longitudinal and bottom loading structures 400 apply longitudinal pressure to both sides of the front end of the new energy vehicle chassis 200. The rear positioning structure 500 supports both sides of the rear end of the new energy vehicle chassis 200. The longitudinal strength of both sides of the longitudinal and bottom loading structures 400 is then tested. The rear positioning structure 500 is then adjusted so that it abuts against one side of the rear end of the new energy vehicle chassis 200. The longitudinal and bottom loading structures 400 are then adjusted so that they apply pressure to the other side of the front end of the new energy vehicle chassis 200. The force strength on one longitudinal side of the new energy vehicle chassis 200 is then tested. Finally, the support position of the rear positioning structure 500 and the force application position of the longitudinal and bottom loading structures 400 are switched, and the force strength on the other longitudinal side of the new energy vehicle chassis 200 is tested. During the bottom strength testing of the new energy vehicle chassis 200, the load-bearing and lateral loading structure 300 is first operated so that its upper end presses against the upper side of the new energy vehicle chassis 200. Simultaneously, the longitudinal and bottom loading structures 400 apply upward pressure to both sides of the front bottom of the new energy vehicle chassis 200, testing the stress strength at the bottom of the new energy vehicle chassis 200. Then, the longitudinal and bottom loading structures 400 are adjusted so that they apply upward pressure to one side of the bottom of the new energy vehicle chassis 200, testing the single-sided stress strength at the bottom of the new energy vehicle chassis 200. In summary, this new energy vehicle chassis strength testing component has comprehensive testing capabilities, enabling separate testing of the lateral stress strength, load-bearing and battery-supporting crossbeam strength, and longitudinal bilateral and single-sided stress strength of the new energy vehicle chassis 200.Furthermore, the strength testing component for this new energy vehicle chassis can independently test the stress strength on both sides and one side of the bottom of the new energy vehicle chassis 200. This aims to meet multiple testing requirements of the new energy vehicle chassis 200, significantly improve testing accuracy, thereby ensuring the safety and reliability of the new energy vehicle chassis 200, and ensuring that the new energy vehicle chassis 200 fully complies with relevant standards and requirements in actual use.

[0038] Please see Figures 1 to 2 The base support structure 100 includes a base 110, a rear support column 120, a front support seat 130, and a spare hinge seat 140. The rear support column 120 is fixedly connected to both sides of the rear end of the base 110, and the front support seat 130 is fixedly connected to both sides of the front end of the base 110. The rear support column 120 and the front support seat 130 respectively support the rear end and the front end of the new energy vehicle chassis 200. The spare hinge seat 140 is fixedly connected to both sides of the front end of the base 110 and can be hinged to the front end of the new energy vehicle chassis 200. During the lateral strength testing and load-bearing capacity testing of the new energy vehicle chassis 200, as well as the battery load-bearing beam strength testing, the rear end of the new energy vehicle chassis 200 is supported by the rear support column 120, and the front end of the new energy vehicle chassis 200 is hinged by the spare hinge seat 140. Using the spare hinge seat 140 for load-bearing capacity testing and battery load-bearing beam strength testing allows for simultaneous testing of the welding strength of the hinge seat during actual installation of the front end of the new energy vehicle chassis 200. During longitudinal and bottom testing of the new energy vehicle chassis 200, the front end of the new energy vehicle chassis 200 is supported by the front support seat 130, and the hinge at the spare hinge seat 140 is released, ensuring that the longitudinal and upward deformation of the new energy vehicle chassis 200 is not affected by the spare hinge seat 140.

[0039] Please see Figures 1 to 3The load-bearing and lateral loading structure 300 includes a transverse slide rail 310, a slide rail-type lateral pressure mechanism 320, a lateral pressure slider 330, a first hydraulic cylinder 340, and a load-bearing pressure mechanism 350. The transverse slide rails 310 are laterally and equally spaced on the base support structure 100. Two slide rail-type lateral pressure mechanisms 320 and two lateral pressure sliders 330 are each provided. The two slide rail-type lateral pressure mechanisms 320 are slidably connected to both ends of the multiple transverse slide rails 310, and the two lateral pressure sliders 330 are slidably connected to the two slide rail-type lateral pressure mechanisms 350. On the pressure applying mechanism 320, the slide rail type lateral pressure applying mechanism 320 drives the transverse pressure applying slider 330 to slide longitudinally. The output end of the first oil cylinder 340 is respectively connected to the opposite side of the two slide rail type lateral pressure applying mechanisms 320. The first oil cylinder 340 is fixedly connected to the base support structure 100. The bearing pressure applying mechanism 350 is set on both sides of the base support structure 100. The top of the transverse pressure applying slider 330 slides laterally along the bearing pressure applying mechanism 350. The force applying end of the bearing pressure applying mechanism 350 can be converted from transverse pressure application to longitudinal pressure application. During the lateral strength test of the new energy vehicle chassis 200, the first hydraulic cylinder 340 drives two sliding rail type lateral pressure mechanisms 320 to slide along the lateral sliding rail 310. The sliding rail type lateral pressure mechanism 320 drives the lateral pressure slider 330 to gradually press against both sides of the new energy vehicle chassis 200. The lateral pressure slider 330 applies pressure to the new energy vehicle chassis 200 laterally to test the lateral force strength of the new energy vehicle chassis 200. In addition, the sliding rail type lateral pressure mechanism 320 drives the lateral pressure slider 330 to move in the longitudinal position to realize the lateral multi-point force test of the new energy vehicle chassis 200. During the load-bearing capacity and battery load-bearing crossbeam strength testing of the new energy vehicle chassis 200, the load-bearing pressure applying mechanism 350 applies pressure to the upper part of the new energy vehicle chassis 200 to test the load-bearing capacity of the new energy vehicle chassis 200. The load-bearing pressure applying mechanism 350 changes from horizontal to vertical, allowing it to extend into the new energy vehicle chassis 200. The load-bearing pressure applying mechanism 350 applies pressure to the battery load-bearing crossbeam inside the new energy vehicle chassis 200 to test the load-bearing capacity of the battery load-bearing crossbeam inside the new energy vehicle chassis 200. The horizontal pressure applying slider 330 drives the load-bearing pressure applying mechanism 350 to move longitudinally, realizing multi-point load-bearing capacity testing of the upper part of the new energy vehicle chassis 200.

[0040] Please see Figures 1 to 4The slide rail type lateral pressure mechanism 320 includes a heavy-duty slide rail 321, a limiting mounting plate 322, a threaded rod 323, a mounting bracket 324, and a motor 325. The heavy-duty slide rail 321 is slidably connected to both ends of a plurality of transverse slide rails 310. The limiting mounting plate 322 is fixedly connected to both ends of the heavy-duty slide rail 321. The threaded rod 323 is rotatably connected between the limiting mounting plates 322 at both ends of the heavy-duty slide rail 321. The threaded rod 323 is threaded through the transverse pressure sliding block 330. The mounting bracket 324 is fixedly connected to the outside of the limiting mounting plate 322. The motor 325 is fixedly connected to the mounting bracket 324. The output end of the motor 325 is connected to the end of the threaded rod 323. The first hydraulic cylinder 340 drives two heavy-duty slide rails 321 to slide along the transverse slide rail 310. The heavy-duty slide rails 321 drive the transverse pressure sliding block 330 to apply transverse pressure to the new energy vehicle chassis 200. When the transverse force strength detection point of the new energy vehicle chassis 200 is changed, the motor 325 is started. The motor 325 drives the threaded rod 323 to rotate. The threaded rod 323 drives the transverse pressure sliding block 330 to slide along the heavy-duty slide rail 321 through the thread transmission principle, thereby changing the detection point of the transverse pressure sliding block 330 on the transverse pressure of the new energy vehicle chassis 200.

[0041] Please see Figures 1 to 5 The transverse pressure sliding block 330 includes a mounting block 331, a heavy-duty sliding block 332, a transverse wedge-shaped pressure block 334, a transverse arc-shaped pressure block 335, and a limiting sliding block 336. The heavy-duty sliding block 332 is fixedly connected to the bottom end of the mounting block 331 and slidably connected to the slide rail type lateral pressure mechanism 320. The mounting block 331 has a threaded hole 333, and the slide rail type lateral pressure mechanism 320 is threaded through the threaded hole 333. The slide rail type lateral pressure mechanism 320 drives the mounting block 331 through the thread. The transverse wedge-shaped pressure block 334 is fixedly connected to the lower end of the inner side of the mounting block 331, and the transverse arc-shaped pressure block 335 is fixedly connected to the upper end of the inner side of the mounting block 331. The limiting sliding block 336 is fixedly connected to the top end of the transverse arc-shaped pressure block 335 and the mounting block 331, and the limiting sliding block 336 slides laterally along the bearing pressure mechanism 350. The threaded rod 323 drives the mounting block 331 through the threaded transmission principle. The mounting block 331 drives the heavy slider 332 to slide along the heavy slide rail 321. The heavy slider 332 drives the transverse wedge-shaped pressure block 334 to gradually apply pressure to the middle of the new energy vehicle chassis 200. The shape of the transverse wedge-shaped pressure block 334 matches the outer shape of the middle of the new energy vehicle chassis 200. The heavy slider 332 drives the transverse arc-shaped pressure block 335 to apply pressure to the front and rear outer sides of the new energy vehicle chassis 200.

[0042] Please see Figures 1 to 6The bearing and pressure-applying mechanism 350 includes a limiting slide bar 351, a bearing platform 352, a second hydraulic cylinder 354, and a pressure-applying platform 355. The limiting slide bar 351 is longitudinally arranged on both sides of the base support structure 100. The two ends of the bearing platform 352 are slidably connected to the limiting slide bar 351. A first sliding groove 353 is transversely opened on the lower side of the bearing platform 352. The top of the transverse pressure-applying slider 330 is slidably connected to the first sliding groove 353. The second hydraulic cylinder 354 is fixedly connected to the upper side of the bearing platform 352. The output end of the second hydraulic cylinder 354 extends out from the lower side of the bearing platform 352. The pressure-applying platform 355 is rotatably connected to the output end of the second hydraulic cylinder 354, and the pressure-applying platform 355 rotates around the output end of the second hydraulic cylinder 354 to switch between transverse and longitudinal directions. The limiting slider 336 is slidably connected to the first sliding groove 353. The transverse arc-shaped pressure-applying block 335 and the mounting block 331 drive the bearing platform 352 to slide along the limiting slide bar 351 through the limiting slider 336. The output end of the second hydraulic cylinder 354 drives the pressure platform 355 to move downward. When the pressure platform 355 is arranged laterally, it applies pressure to the main beams on both sides of the new energy vehicle chassis 200 to test the load-bearing strength of the new energy vehicle chassis 200. When the pressure platform 355 rotates around the output end of the second hydraulic cylinder 354 to the longitudinal position, it extends into the interior of the new energy vehicle chassis 200 and presses down on the battery support beam inside the new energy vehicle chassis 200 to test the load-bearing strength of the battery support beam inside the new energy vehicle chassis 200.

[0043] Please see Figures 1 to 6 The support platform 352 includes a support plate 3521 and a fixing sleeve 3522. The fixing sleeve 3522 is fixedly connected to both ends of the upper side of the support plate 3521, and the fixing sleeve 3522 is slidably sleeved on the limiting slide rod 351. The transverse arc-shaped pressure block 335 and the mounting block 331 drive the support plate 3521 through the limiting slider 336, and the support plate 3521 slides along the limiting slide rod 351 through the fixing sleeve 3522.

[0044] Please see Figures 1 to 6 The pressure application platform 355 includes a force application seat 3551 and force application forks 3552. The force application forks 3552 are fixedly connected to the four corners of the force application seat 3551. When the force application seat 3551 is in a lateral position, the force application forks 3552 can press down on both sides of the new energy vehicle chassis 200. When the force application seat 3551 is in a longitudinal position, the force application forks 3552 can extend into the new energy vehicle chassis 200 to press down on the crossbeam supporting the battery within the new energy vehicle chassis 200. The force application forks 3552 at the four corners of the force application seat 3551 maintain overall rigidity while reducing the weight of the entire pressure application platform 355. The force application forks 3552 apply pressure to both sides of the new energy vehicle chassis 200 and the crossbeam supporting the battery within the new energy vehicle chassis 200 to test the load-bearing capacity.

[0045] Please see Figures 1 to 7The longitudinal and bottom loading structure 400 includes a track mounting component 410, a third hydraulic cylinder 420, a longitudinal connecting component 430, a sliding force-applying frame 440, a first adjusting head 450, and a swing-type bottom loading component 460. The track mounting component 410 is fixedly connected to the front end of the base support structure 100. The third hydraulic cylinder 420 is fixedly connected to the upper end inside the track mounting component 410. The longitudinal connecting component 430 is fixedly connected to the output end of the third hydraulic cylinder 420. The two sides of the longitudinal connecting component 430 are slidably connected to the two sides of the upper end of the track mounting component 410. The sliding force-applying frame 440 is slidably connected to the rear sides of both ends of the longitudinal connecting component 430. The first adjusting head 450 can be inserted into the inner side of the sliding force-applying frame 440. The first adjusting head 450 is located at... Between the inner side of the sliding force-applying frame 440 and the rear side of the longitudinal connecting member 430, the longitudinal connecting member 430 applies pressure to the sliding force-applying frame 440 through the first adjusting head 450. The outer side of the sliding force-applying frame 440 can press down on one side of the front end of the new energy vehicle chassis 200. The swing-type bottom loading member 460 is located on both sides of the track mounting member 410. The bottom end of the swing-type bottom loading member 460 is connected to the base support structure 100. The first adjusting head 450 can be inserted into the front side of the longitudinal connecting member 430. The front side of the longitudinal connecting member 430 can push the front end of the swing-type bottom loading member 460 to swing downward through the first adjusting head 450. The rear end of the swing-type bottom loading member 460 swings upward to apply pressure to the bottom of the new energy vehicle chassis 200. When simultaneously testing the longitudinal strength of the new energy vehicle chassis 200 on both sides, a first adjusting head 450 is inserted into the sliding force-applying frame 440 at both ends of the longitudinal connecting member 430. The third oil cylinder 420 pushes the longitudinal connecting member 430 to slide along the track mounting member 410. Both ends of the longitudinal connecting member 430 apply pressure to the sliding force-applying frame 440 through the first adjusting head 450. The sliding force-applying frame 440 at both ends of the longitudinal connecting member 430 simultaneously apply pressure to both longitudinal sides of the new energy vehicle chassis 200 to test the longitudinal strength of the new energy vehicle chassis 200. When testing the longitudinal unilateral strength of the new energy vehicle chassis 200, the sides of the new energy vehicle chassis 200 are stabilized and restricted by the lateral pressure sliding block 330. Subsequently, a first adjusting head 450 is inserted into the sliding force frame 440 at one end of the longitudinal connecting member 430. The support at the tail end positioning structure 500 corresponding to the first adjusting head 450 is released. One end of the longitudinal connecting member 430 applies pressure to the sliding force frame 440 through the first adjusting head 450. The sliding force frame 440 at one end of the longitudinal connecting member 430 applies pressure to one longitudinal side of the new energy vehicle chassis 200 to test the longitudinal unilateral strength of the new energy vehicle chassis 200. It should be noted that by adjusting the position of the first adjusting head 450 and the position of the support at the tail end positioning structure 500, the strength of the other longitudinal side of the new energy vehicle chassis 200 is tested.Simultaneously testing the strength of both sides of the bottom of the new energy vehicle chassis 200, the bearing platform 352 presses down on the upper part of the new energy vehicle chassis 200 to stabilize the new energy vehicle chassis 200. The first adjusting head 450 is inserted into the front side of both ends of the longitudinal connecting member 430. The third oil cylinder 420 pulls the longitudinal connecting member 430 to slide along the track mounting member 410. The front side of the longitudinal connecting member 430 can push the front end of the two swing-type bottom loading members 460 to swing downward through the first adjusting head 450. The rear end of the swing-type bottom loading members 460 swings upward to apply pressure to the bottom of the new energy vehicle chassis 200. At the same time, the strength of both sides of the bottom of the new energy vehicle chassis 200 is tested. When testing the strength of one side of the bottom of the new energy vehicle chassis 200, the support platform 352 presses down on the upper part of the new energy vehicle chassis 200 to stabilize it. The first adjusting head 450 is inserted into the front side of one end of the longitudinal connecting member 430. The third hydraulic cylinder 420 pulls the longitudinal connecting member 430 to slide along the track mounting member 410. The front side of the longitudinal connecting member 430 can push the front end of one of the swing-type bottom loading members 460 downward through the first adjusting head 450. The other swing-type bottom loading member 460 is not pushed by the longitudinal connecting member 430 due to the lack of the first adjusting head 450. The rear end of the swing-type bottom loading member 460 swings upward to apply pressure to one side of the bottom of the new energy vehicle chassis 200. The strength of one side of the bottom of the new energy vehicle chassis 200 is tested. It should be noted that the strength of the other side of the bottom of the new energy vehicle chassis 200 is tested by moving the first adjusting head 450 to the front side of the other end of the longitudinal connecting member 430. By adjusting the position of the first adjusting head 450, the strength of both sides of the bottom of the new energy vehicle chassis 200 can be tested simultaneously, and the strength of one side of the bottom of the new energy vehicle chassis 200 can be tested.

[0046] Please see Figures 1 to 8 The track mounting component 410 includes a U-shaped mounting frame 411, a longitudinal slide rail 412, and a cylinder seat 413. The U-shaped mounting frame 411 is fixedly connected to the front end of the base support structure 100. The longitudinal slide rail 412 is fixedly connected to both sides of the top of the U-shaped mounting frame 411. The longitudinal connector 430 is slidably connected to the longitudinal slide rail 412 on both sides. The cylinder seat 413 is installed inside the U-shaped mounting frame 411. A third cylinder 420 is fixedly connected to the cylinder seat 413, and the output end of the third cylinder 420 extends to the rear end of the cylinder seat 413. The U-shaped mounting frame 411 supports the longitudinal slide rail 412. The cylinder seat 413 is installed inside the U-shaped mounting frame 411 and provides stable support for the installation of the third cylinder 420. The longitudinal slide rail 412 serves as a sliding guide for the longitudinal connector 430.

[0047] Please see Figures 1 to 9The longitudinal connecting member 430 includes a longitudinal connecting frame 431, a longitudinal slider 432, a fixing frame 433, and a first adjusting rail 434. The longitudinal slider 432 is fixedly connected to both ends of the lower side of the longitudinal connecting frame 431 and slidably connected to the rail mounting member 410. The fixing frame 433 is fixedly connected to both ends of the front side of the longitudinal connecting frame 431. The first adjusting rail 434 is fixedly connected to the front side of the fixing frame 433, and the first adjusting head 450 can be inserted into the first adjusting rail 434. The longitudinal connecting frame 431 slides along the longitudinal slide rail 412 via the longitudinal slider 432. When the first adjusting head 450 is installed on the front side of the longitudinal connecting member 430, the first adjusting head 450 is inserted into the first adjusting rail 434.

[0048] Please see Figures 1 to 10 The sliding force-applying frame 440 includes a force-applying plate 441, an adjusting slide rod 442, and a second adjusting slide rail 443. The adjusting slide rod 442 is fixedly connected to both ends of the inner side of the force-applying plate 441 and slides through the longitudinal connecting member 430. The second adjusting slide rail 443 is fixedly connected to the inner side of the force-applying plate 441. The first adjusting head 450 is composed of a first adjusting block 451 with a second sliding groove 452. The second adjusting slide rail 443 is inserted into the second sliding groove 452. When the first adjusting head 450 is installed on the rear side of the longitudinal connecting member 430, the second adjusting slide rail 443 is inserted into the second sliding groove 452 of the first adjusting block 451, thus completing the installation of the first adjusting head 450.

[0049] Please see Figures 1 to 11The swing-type bottom loading component 460 includes an ear seat 461, a V-shaped swing frame 462, a push block 463, a reinforcing plate 464, a swing limiting block 465, a movable lifting force-applying head 466, and an arc-shaped block 467. The ear seat 461 is fixedly connected to the base support structure 100 and is located on both sides of the track mounting component 410. The bottom end of the V-shaped swing frame 462 is rotatably connected to the ear seat 461. The push block 463 is fixedly connected to the upper side of the front end of the V-shaped swing frame 462. The reinforcing plate 464 is fixedly connected to the V-shaped swing frame. Inside 462, the swing limit block 465 is fixedly connected to the upper side of the rear end of the V-shaped swing frame 462, and the movable lifting force head 466 is hinged to the swing limit block 465. Both sides of the swing limit block 465 and both sides inside the movable lifting force head 466 are set as slopes. The slopes of the swing limit block 465 limit the angle of the movable lifting force head 466 swinging back and forth. The arc block 467 is fixedly connected to the rear side of the push block 463. The front side of the longitudinal connecting member 430 can push the arc block 467 through the first adjusting head 450. The third cylinder 420 pulls the longitudinal connecting piece 430. The first adjusting head 450 installed on the front side of the longitudinal connecting piece 430 pushes the arc-shaped block 467. The arc-shaped block 467 drives the pushing block 463. The pushing block 463 drives the front end of the V-shaped swing frame 462 to swing downward. The V-shaped swing frame 462 rotates around the ear seat 461. The rear end of the V-shaped swing frame 462 swings upward. The swing limit block 465 moves upward. Because the swing limit block 465 restricts the amplitude of the back-and-forth swing of the movable lifting force head 466, one end of the movable lifting force head 466 first contacts the bottom of the new energy vehicle chassis 200. As the movable lifting force head 466 continues to move upward, the new energy vehicle chassis 200 drives the movable lifting force head 466 to align around the swing limit block 465, so that the top plane of the movable lifting force head 466 abuts against the bottom of the new energy vehicle chassis 200. The longitudinal connecting piece 430 applies pressure to the pushing block 463, and the pushing block 463 transmits the pressure to the movable lifting force head 466 through the V-shaped swing frame 462. The movable lifting force head 466 applies upward pressure to the bottom of the new energy vehicle chassis 200, and the force strength of the bottom of the new energy vehicle chassis 200 is detected.

[0050] Please see Figures 1 to 12The tail-end positioning structure 500 includes a positioning mounting component 510 and a second adjusting head 520. The positioning mounting component 510 is fixedly connected to the rear end of the base support structure 100, and the second adjusting head 520 is slidably inserted into the front side of the positioning mounting component 510. The rear end of the new energy vehicle chassis 200 can abut against the second adjusting head 520. The positioning mounting component 510 includes a positioning mounting seat 511 and a third adjusting slide rail 512. The positioning mounting seat 511 is fixedly connected to the rear end of the base support structure 100, and the third adjusting slide rail 512 is fixedly connected to the front side of the positioning mounting seat 511. The second adjusting head 520 is composed of a second adjusting block 521 with a third sliding groove 522, and the third adjusting slide rail 512 is inserted into the third sliding groove 522. When adjusting the support position at the rear positioning structure 500, the third sliding grooves 522 on the two second adjusting blocks 521 are inserted into the two third adjusting rails 512, so that the positioning mounting seat 511 provides support to both sides of the rear end of the new energy vehicle chassis 200 through the two second adjusting blocks 521. A second adjusting block 521 is inserted into the third adjusting rail 512 at one end of the positioning mounting seat 511, so that the position of the positioning mounting seat 511 with the second adjusting block 521 provides unilateral support to the rear end of the new energy vehicle chassis 200. By adjusting the positions of the first adjusting head 450 and the second adjusting head 520, simultaneous detection of the longitudinal strength on both sides of the new energy vehicle chassis 200 and unilateral longitudinal strength detection of the new energy vehicle chassis 200 can be achieved.

[0051] Specifically, the working principle of the strength testing component for the new energy vehicle chassis is as follows: During lateral strength testing and load-bearing testing of the new energy vehicle chassis 200 and the battery-bearing crossbeam strength testing, the rear end of the new energy vehicle chassis 200 is supported by the rear support column 120, and the front end of the new energy vehicle chassis 200 is hinged by the spare hinge seat 140. The spare hinge seat 140 is used to test the load-bearing capacity and battery-bearing crossbeam strength of the new energy vehicle chassis 200, simultaneously testing the welding strength of the hinge seat during actual installation of the front end of the new energy vehicle chassis 200. During longitudinal and bottom testing of the new energy vehicle chassis 200, the front end of the new energy vehicle chassis 200 is supported by the front support seat 130, and the hinge at the spare hinge seat 140 is released, ensuring that the longitudinal and upward deformation of the new energy vehicle chassis 200 is not affected by the spare hinge seat 140.

[0052] During the lateral strength test of the new energy vehicle chassis 200, the first hydraulic cylinder 340 slides along the two heavy-duty slide rails 321 on the lateral slide rail 310. The heavy-duty slide rails 321 drive the lateral pressure sliding block 330 to gradually press against both sides of the new energy vehicle chassis 200. The lateral pressure sliding block 330 applies pressure to the new energy vehicle chassis 200 laterally, and the lateral force strength of the new energy vehicle chassis 200 is tested. When the lateral force strength test point of the new energy vehicle chassis 200 is changed, the motor 325 is started. The motor 325 drives the threaded rod 323 to rotate. The threaded rod 323 drives the mounting block 331 through the thread transmission principle. The mounting block 331 drives the heavy-duty sliding block 332 along the lateral force strength test point. The heavy-duty slide rail 321 slides, changing the detection point of the lateral pressure of the lateral pressure slider 330 on the new energy vehicle chassis 200. When the lateral strength of the middle part of the new energy vehicle chassis 200 is tested, the heavy-duty slider 332 drives the lateral wedge-shaped pressure block 334 to gradually apply pressure to the middle part of the new energy vehicle chassis 200. The shape of the lateral wedge-shaped pressure block 334 matches the outer shape of the middle part of the new energy vehicle chassis 200. When the lateral strength of the front and rear parts of the new energy vehicle chassis 200 is tested, the heavy-duty slider 332 drives the lateral arc-shaped pressure block 335 to apply pressure to the outer parts of the front and rear parts of the new energy vehicle chassis 200, thus detecting the lateral force strength of the new energy vehicle chassis 200 at multiple points.

[0053] During the load-bearing capacity and battery load-bearing crossbeam strength testing of the new energy vehicle chassis 200, the output end of the second hydraulic cylinder 354 drives the pressure platform 355 to move downwards. When the pressure platform 355 is arranged laterally, it applies pressure to the main beams on both sides of the new energy vehicle chassis 200 to test the load-bearing capacity of the new energy vehicle chassis 200. When the pressure platform 355 rotates around the output end of the second hydraulic cylinder 354 to a longitudinal position, it extends into the interior of the new energy vehicle chassis 200, pressing down on the battery load-bearing crossbeam inside the chassis 200 to test its load-bearing capacity. With the pressure platform 355 arranged laterally, the laterally curved pressure block 335 and the mounting block 331 drive the bearing platform 352 to slide along the limiting slide rod 351 via the limiting slider 336. Furthermore, as the bearing platform 352 moves longitudinally, it can also test the load-bearing capacity at multiple points on the new energy vehicle chassis 200.

[0054] Simultaneously testing the longitudinal strength of the new energy vehicle chassis 200, the heavy-duty slide rail 321 drives the transverse pressure slider 330 to approach the sides of the new energy vehicle chassis 200, restricting the position of the sides of the new energy vehicle chassis 200. Two first adjustment heads 450 are respectively inserted into the second adjustment slide rails 443 on the force plates 441 at both ends of the longitudinal connecting frame 431, and two second adjustment heads 520 are inserted into the two third adjustment slide rails 512, so that the positioning mounting seat 511 provides support to the rear sides of the new energy vehicle chassis 200 through the two second adjustment heads 520. The third hydraulic cylinder 420 pushes the longitudinal connecting frame 431, and the longitudinal slider 432 of the longitudinal connecting frame 431 slides along the longitudinal slide rail 412. Both ends of the longitudinal connecting frame 431 apply pressure to the force plates 441 through the first adjustment heads 450. The force plates 441 at both ends of the longitudinal connecting frame 431 simultaneously apply pressure to the longitudinal sides of the new energy vehicle chassis 200, thus testing the longitudinal strength of the new energy vehicle chassis 200.

[0055] When testing the longitudinal unilateral strength of the new energy vehicle chassis 200, the sides of the new energy vehicle chassis 200 are stabilized and restricted by the transverse pressure sliding block 330. Subsequently, a first adjusting head 450 is inserted into the second adjusting slide rail 443 of the force plate 441 at one end of the longitudinal connecting frame 431. The second adjusting head 520 on the positioning mounting seat 511 corresponding to the first adjusting head 450 is pulled out, and the support of the positioning mounting seat 511 on the side corresponding to the first adjusting head 450 is released, so that the second adjusting head 520 on the other side of the positioning mounting seat 511 provides support for the new energy vehicle chassis 200. The longitudinal connecting frame 431 applies pressure to the sliding force frame 440 through the first adjusting head 450. The force plate 441 on the longitudinal connecting frame 431, on which the first adjusting head 450 is installed, applies pressure to the longitudinal unilateral strength of the new energy vehicle chassis 200. It should be noted that by adjusting the position of the first adjusting head 450 and the position of the second adjusting head 520, the strength of the other longitudinal side of the new energy vehicle chassis 200 is tested.

[0056] Simultaneously testing the strength of both sides of the bottom of the new energy vehicle chassis 200, the bearing platform 352 presses down on the upper part of the new energy vehicle chassis 200 to stabilize it. Two first adjusting heads 450 are inserted into the first adjusting rails 434 at the front ends of the longitudinal connecting frame 431. The third hydraulic cylinder 420 pulls the longitudinal connecting frame 431, and the longitudinal slider 432 slides along the longitudinal slide rail 412. The front of the longitudinal connecting frame 431 pushes the pushing arc blocks 467 of the two swing-type bottom loading components 460 through the two first adjusting heads 450. The arc blocks 467 drive the pushing block 463, which in turn drives the front end of the V-shaped swing frame 462 to swing downwards. The V-shaped swing frame 462 rotates around the ear seat 461, and the rear end of the V-shaped swing frame 462 swings upwards. The swing limit block 465... As it moves upward, the swing limit block 465 restricts the amplitude of the movable lifting force head 466's back-and-forth swing. One end of the movable lifting force head 466 first contacts the bottom of the new energy vehicle chassis 200. As the movable lifting force head 466 continues to move upward, the new energy vehicle chassis 200 drives the movable lifting force head 466 to align around the swing limit block 465, so that the top plane of the movable lifting force head 466 abuts against the bottom of the new energy vehicle chassis 200. The longitudinal connecting frame 431 applies pressure to the pushing block 463, and the pushing block 463 transmits the pressure to the movable lifting force head 466 through the V-shaped swing frame 462. The movable lifting force head 466 applies upward pressure to both sides of the bottom of the new energy vehicle chassis 200 at the same time, and the strength of both sides of the bottom of the new energy vehicle chassis 200 is detected.

[0057] When testing the bottom unilateral strength of the new energy vehicle chassis 200, the bearing platform 352 presses down on the upper part of the new energy vehicle chassis 200 to stabilize it. One of the first adjustment heads 450 is inserted into the first adjustment rail 434 on the front side of one end of the longitudinal connecting frame 431. The third hydraulic cylinder 420 pulls the longitudinal connecting frame 431, and the longitudinal slider 432 slides along the longitudinal slide rail 412. The front side of the longitudinal connecting frame 431 pushes the front end of one of the swing-type bottom loading parts 460 downward through the first adjustment head 450. When the other swing-type bottom loading component 460 is not pushed by the longitudinal connecting component 430 due to the lack of the first adjusting head 450, the rear end of the V-shaped swing frame 462 of the swing-type bottom loading component 460 swings upward, and the movable lifting force-applying head 466 applies pressure to one side of the bottom of the new energy vehicle chassis 200 to test the strength of one side of the bottom of the new energy vehicle chassis 200. It should be noted that the strength of the other side of the bottom of the new energy vehicle chassis 200 is tested by moving the first adjusting head 450 to the front side of the other end of the longitudinal connecting frame 431.

[0058] In summary, this strength testing component for the new energy vehicle chassis possesses comprehensive testing capabilities, enabling it to perform lateral force strength testing, load-bearing capacity testing, and battery-supporting beam strength testing on the new energy vehicle chassis 200. Furthermore, by adjusting the position of the first adjusting head 450, the component allows for simultaneous testing of the strength on both sides of the bottom of the new energy vehicle chassis 200, as well as independent testing of the strength on one side of the bottom. Similarly, by adjusting the positions of the first adjusting head 450 and the second adjusting head 520, it allows for simultaneous testing of the longitudinal strength on both sides of the new energy vehicle chassis 200, as well as independent testing of the longitudinal strength on one side of the bottom. This design aims to meet multiple testing requirements for the new energy vehicle chassis 200, significantly improving testing accuracy and ensuring the safety and reliability of the new energy vehicle chassis 200, thus ensuring that the new energy vehicle chassis 200 fully complies with relevant standards and requirements in actual use.

[0059] It should be noted that the specific models and specifications of the first hydraulic cylinder 340, the motor 325, the second hydraulic cylinder 354, and the third hydraulic cylinder 420 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0060] The power supply and operating principle of motor 325 are clear to those skilled in the art and will not be described in detail here.

[0061] The fluid supply and operating principles of the first hydraulic cylinder 340, the second hydraulic cylinder 354, and the third hydraulic cylinder 420 are clear to those skilled in the art and will not be described in detail here.

[0062] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A strength testing component for a new energy vehicle chassis, characterized in that, include: Base support structure (100); A new energy vehicle chassis (200), wherein the base support structure (100) supports the new energy vehicle chassis (200). A load-bearing and lateral loading structure (300) is provided on both sides of the upper part of the base support structure (100). The upper part of the load-bearing and lateral loading structure (300) spans both sides of the new energy vehicle chassis (200). When the upper part of the load-bearing and lateral loading structure (300) is in lateral mode, the load-bearing and lateral loading structure (300) can apply pressure to the upper part of the new energy vehicle chassis (200). When the upper part of the load-bearing and lateral loading structure (300) is in longitudinal mode, the load-bearing and lateral loading structure (300) can apply pressure to the battery load-bearing structure of the new energy vehicle chassis (200). The two sides of the load-bearing and lateral loading structure (300) can apply lateral pressure to multiple points on both sides of the new energy vehicle chassis (200). A longitudinal and bottom loading structure (400) is provided at the front end of the upper part of the base support structure (100). When the longitudinal and bottom loading structure (400) is pushed forward, it can apply pressure to one or both sides of the longitudinal direction of the new energy vehicle chassis (200). When the longitudinal and bottom loading structure (400) is pulled backward, it can apply upward pressure to one or both sides of the bottom of the new energy vehicle chassis (200). The tail end positioning structure (500) is fixedly connected to the tail end of the upper part of the base support structure (100). The tail end positioning structure (500) can support one or both sides of the rear end of the new energy vehicle chassis (200). The base support structure (100) includes a base (110), a rear support column (120), a front support seat (130), and a spare hinge seat (140). The rear support column (120) is fixedly connected to both sides of the rear end of the base (110), and the front support seat (130) is fixedly connected to both sides of the front end of the base (110). The rear support column (120) and the front support seat (130) respectively support the rear end and the front end of the new energy vehicle chassis (200). The spare hinge seat (140) is fixedly connected to both sides of the front end of the base (110) and can be hinged to the front end of the new energy vehicle chassis (200).

2. The strength testing component for a new energy vehicle chassis according to claim 1, characterized in that, The bearing and lateral loading structure (300) includes a lateral slide rail (310), a slide rail-type lateral pressure mechanism (320), a lateral pressure slider (330), a first hydraulic cylinder (340), and a bearing pressure mechanism (350). The lateral slide rails (310) are laterally and equally spaced on the base support structure (100). There are two slide rail-type lateral pressure mechanisms (320) and two lateral pressure sliders (330). The two slide rail-type lateral pressure mechanisms (320) are slidably connected to both ends of the plurality of lateral slide rails (310), and the two lateral pressure sliders (330) are slidably connected to the two slide rail-type lateral pressure mechanisms. On the mechanism (320), the slide rail type lateral pressure mechanism (320) drives the transverse pressure slider (330) to slide longitudinally. The output end of the first cylinder (340) is respectively connected to the opposite side of the two slide rail type lateral pressure mechanisms (320). The first cylinder (340) is fixedly connected to the base support structure (100). The bearing pressure mechanism (350) is arranged on both sides of the base support structure (100). The top end of the transverse pressure slider (330) slides laterally along the bearing pressure mechanism (350). The force-applying end of the bearing pressure mechanism (350) can be converted from transverse pressure application to longitudinal pressure application.

3. The strength testing component for a new energy vehicle chassis according to claim 2, characterized in that, The slide rail type lateral pressure mechanism (320) includes a heavy-duty slide rail (321), a limiting mounting plate (322), a threaded rod (323), a mounting bracket (324), and a motor (325). The heavy-duty slide rail (321) is slidably connected to both ends of a plurality of transverse slide rails (310). The limiting mounting plate (322) is fixedly connected to both ends of the heavy-duty slide rail (321). The threaded rod (323) is rotatably connected between the limiting mounting plates (322) at both ends of the heavy-duty slide rail (321). The threaded rod (323) is threaded through the transverse pressure slider (330). The mounting bracket (324) is fixedly connected to the outside of the limiting mounting plate (322). The motor (325) is fixedly connected to the mounting bracket (324). The output end of the motor (325) is connected to the end of the threaded rod (323).

4. The strength testing component for a new energy vehicle chassis according to claim 2, characterized in that, The transverse pressure sliding block (330) includes a mounting block (331), a heavy-duty sliding block (332), a transverse wedge-shaped pressure block (334), a transverse arc-shaped pressure block (335), and a limiting sliding block (336). The heavy-duty sliding block (332) is fixedly connected to the bottom end of the mounting block (331), and the heavy-duty sliding block (332) is slidably connected to the slide rail type lateral pressure mechanism (320). The mounting block (331) has a threaded hole (333), and the slide rail type lateral pressure mechanism (320) is threaded through the threaded hole. (333) The slide rail type lateral pressure mechanism (320) drives the mounting block (331) by thread. The transverse wedge pressure block (334) is fixedly connected to the lower end of the inner side of the mounting block (331). The transverse arc pressure block (335) is fixedly connected to the upper end of the inner side of the mounting block (331). The limiting slider (336) is fixedly connected to the transverse arc pressure block (335) and the top end of the mounting block (331). The limiting slider (336) slides laterally along the bearing pressure mechanism (350).

5. The strength testing component for a new energy vehicle chassis according to claim 2, characterized in that, The bearing and pressure-applying mechanism (350) includes a limiting slide rod (351), a bearing platform (352), a second hydraulic cylinder (354), and a pressure-applying platform (355). The limiting slide rod (351) is arranged longitudinally on both sides of the base support structure (100). The bearing platform (352) is slidably connected to the limiting slide rod (351) at both ends. A first sliding groove (353) is opened horizontally through the lower side of the bearing platform (352). The top end of the horizontal pressure-applying slider (330) is slidably connected to the first sliding groove (353). The second hydraulic cylinder (354) is fixedly connected to the upper side of the bearing platform (352). The output end of the second hydraulic cylinder (354) extends out of the lower side of the bearing platform (352). The pressure-applying platform (355) is rotatably connected to the output end of the second hydraulic cylinder (354). The pressure-applying platform (355) rotates horizontally and vertically around the output end of the second hydraulic cylinder (354).

6. The strength testing component for a new energy vehicle chassis according to claim 1, characterized in that, The longitudinal and bottom loading structure (400) includes a track mounting component (410), a third hydraulic cylinder (420), a longitudinal connector (430), a sliding force-applying frame (440), a first adjusting head (450), and a swing-type bottom loading component (460). The track mounting component (410) is fixedly connected to the front end of the base support structure (100). The third hydraulic cylinder (420) is fixedly connected to the upper end inside the track mounting component (410). The longitudinal connector (430) is fixedly connected to the output end of the third hydraulic cylinder (420). The two sides of the longitudinal connector (430) are slidably connected to the two sides of the upper end of the track mounting component (410). The sliding force-applying frame (440) is slidably connected to the rear sides of both ends of the longitudinal connector (430). The first adjusting head (450) can be inserted into the inner side of the sliding force-applying frame (440). The first adjusting head (450) is located on the sliding... Between the inner side of the moving force-applying frame (440) and the rear side of the longitudinal connecting member (430), the longitudinal connecting member (430) applies pressure to the sliding force-applying frame (440) through the first adjusting head (450). The outer side of the sliding force-applying frame (440) can press against one side of the front end of the new energy vehicle chassis (200). The swing-type bottom loading member (460) is located on both sides of the track mounting member (410). The bottom end of the swing-type bottom loading member (460) is connected to the base support structure (100). The first adjusting head (450) can be inserted into the front side of the longitudinal connecting member (430). The front side of the longitudinal connecting member (430) can push the front end of the swing-type bottom loading member (460) to swing downward through the first adjusting head (450). The rear end of the swing-type bottom loading member (460) swings upward to apply pressure to the bottom of the new energy vehicle chassis (200).

7. The strength testing component for a new energy vehicle chassis according to claim 6, characterized in that, The longitudinal connector (430) includes a longitudinal connector (431), a longitudinal slider (432), a fixing frame (433), and a first adjusting rail (434). The longitudinal slider (432) is fixedly connected to both ends of the lower side of the longitudinal connector (431). The longitudinal slider (432) is slidably connected to the rail mounting component (410). The fixing frame (433) is fixedly connected to both ends of the front side of the longitudinal connector (431). The first adjusting rail (434) is fixedly connected to the front side of the fixing frame (433). The first adjusting head (450) can be inserted into the first adjusting rail (434).

8. The strength testing component for a new energy vehicle chassis according to claim 6, characterized in that, The sliding force-applying frame (440) includes a force-applying plate (441), an adjusting slide rod (442), and a second adjusting slide rail (443). The adjusting slide rod (442) is fixedly connected to both ends of the inner side of the force-applying plate (441). The adjusting slide rod (442) slides through the longitudinal connecting member (430). The second adjusting slide rail (443) is fixedly connected to the inner side of the force-applying plate (441). The first adjusting head (450) is composed of a first adjusting block (451) with a second slide groove (452). The second adjusting slide rail (443) is inserted into the second slide groove (452).

9. The strength testing component for a new energy vehicle chassis according to claim 6, characterized in that, The swing-type bottom loading component (460) includes an ear seat (461), a V-shaped swing frame (462), a push block (463), a reinforcing plate (464), a swing limiting block (465), a movable lifting force application head (466), and an arc-shaped block (467). The ear seat (461) is fixedly connected to the base support structure (100). The ear seats (461) are located on both sides of the track mounting component (410). The bottom end of the V-shaped swing frame (462) is rotatably connected to the ear seat (461). The push block (463) is fixedly connected to the upper side of the front end of the V-shaped swing frame (462). The reinforcing plate (464) is fixedly connected to the V-shaped swing frame. Inside the frame (462), the swing limiting block (465) is fixedly connected to the upper side of the rear end of the V-shaped swing frame (462), and the movable lifting force head (466) is hinged to the swing limiting block (465). Both sides of the swing limiting block (465) and both sides inside the movable lifting force head (466) are set as slopes. The slope of the swing limiting block (465) limits the angle of the movable lifting force head (466) swinging back and forth. The arc block (467) is fixedly connected to the rear side of the push block (463), and the front side of the longitudinal connecting member (430) can push the arc block (467) through the first adjusting head (450).

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