New energy vehicle whole vehicle detection platform with protection device

CN122430082BActive Publication Date: 2026-10-23JIETONGDA AUTOMOBILE GROUP CO LTD
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Patent Information

Application Number
CN202610777132.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-06-01
Publication Date
2026-10-23
Estimated Expiration
2046-06-01

AI Technical Summary

Technical Problem

[0005]针对现有技术的不足,本发明提供了一种带有防护装置的新能源车辆整车检测平台,解决了传统检测平台减震效果差、检测数据精度低、车辆对位易偏移、缺少安全防护、设备易磨损维保成本高的问题

Benefits of technology

1、本发明通过设置弧形顶板簧与层叠板簧组合式减震机构,可根据震动强弱完成分级吸能缓冲,有效吸收车辆制动、避震检测作业产生的冲击力。减少震动对转速、制动力、悬架参数等采集工作的干扰,抑制数据波动,规避数据失真问题,显著提升整车各项性能检测结果的稳定性与精准度。

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Abstract

The application relates to the technical field of new energy vehicle detection equipment, and discloses a new energy vehicle whole vehicle detection platform with a protection device, which comprises a detection table base, a side sliding detection table is fixedly installed at the top end of the detection table base, a brake detection table is fixedly installed at the top end of the detection table base and close to the side sliding detection table, a shock absorption detection table is fixedly installed at the top end of the detection table base and close to the brake detection table, a vehicle deviation rectifying mechanism is arranged at the top end of the detection table base and close to the shock absorption detection table, three mounting grooves are formed in the bottom end of the detection table base, and a damping mechanism is arranged in the mounting groove. The new energy vehicle whole vehicle detection platform integrates automatic deviation rectifying, conveying and multiple detection structures, is matched with a composite damping and self-adaptive balance structure, is additionally provided with an explosion-proof closed protection and fire extinguishing monitoring assembly, has high detection precision, stable and safe operation, is convenient to operate, can reduce equipment abrasion, reduces operation and maintenance cost, and has a wide application range.
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Description

Technical Field

[0001] This invention relates to the field of new energy vehicle testing equipment technology, specifically a new energy vehicle whole vehicle testing platform with protective devices. Background Technology

[0002] With the rapid development of the new energy vehicle industry, vehicle safety performance testing has become a crucial step in vehicle manufacturing and annual inspections. Multiple performance aspects, such as sideslip, braking, and shock absorption, require testing using specialized testing platforms. Currently, conventional testing platforms on the market have limited functionality, mostly only capable of basic testing. Vehicle loading / unloading and station switching rely on manual operation, resulting in low testing efficiency. Furthermore, misaligned vehicle placement can easily lead to false positives and missed detections, making it difficult to meet the demands of large-scale testing operations.

[0003] Existing testing platforms generally suffer from insufficient vibration damping performance. During vehicle braking and bumpy simulation testing, strong vibrations and impacts are generated. Simple vibration damping structures cannot effectively absorb this energy, easily causing fluctuations in test data and decreased accuracy. Furthermore, long-term vibration accelerates wear on internal components such as transmissions and bearings, leading to frequent abnormal noises, high malfunction and maintenance frequency, and significantly increased operating costs.

[0004] Furthermore, traditional testing platforms lack specific protective designs. New energy vehicles are equipped with power batteries, posing risks of overheating and fire during testing. Tire bursts and flying parts can also threaten operator safety. Conventional open structures lack fireproofing and isolation protection measures, resulting in significant safety hazards. Therefore, developing a new energy vehicle whole-vehicle testing platform that combines precise shock absorption, automatic correction, and comprehensive protection has practical application value. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a new energy vehicle whole vehicle testing platform with protective devices, which solves the problems of poor shock absorption, low accuracy of test data, easy vehicle misalignment, lack of safety protection, easy wear and tear of equipment and high maintenance costs of traditional testing platforms.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a new energy vehicle whole vehicle testing platform with protective devices, comprising a testing platform base, a side slip testing platform fixedly installed on one side of the top of the testing platform base, a brake testing platform fixedly installed on the side of the top of the testing platform base near the side slip testing platform, a shock absorption testing platform fixedly installed on the side of the top of the testing platform base near the brake testing platform, a vehicle correction mechanism provided on the side of the top of the testing platform base near the shock absorption testing platform, and three mounting slots provided at the bottom of the testing platform base, each mounting slot containing a shock absorption mechanism, the shock absorption mechanism including an arc-shaped top leaf spring, arc-shaped top leaf springs provided on both sides of the mounting slot, and one end of the left side arc-shaped top leaf spring connected to the inner sidewall of the mounting slot via a hanger, and arc-shaped stacked leaf springs installed at the bottom of each arc-shaped top leaf spring, the length of the arc-shaped stacked leaf springs decreasing sequentially from top to bottom.

[0007] Preferably, a conveyor belt is fixedly installed on the top of the testing platform base near the vehicle correction mechanism, and in and out ramps are fixedly installed at both ends of the testing platform base.

[0008] Preferably, an explosion-proof glass cover is fixedly installed on the outer top of the test platform base. Slide grooves are provided on both sides of the inner wall of the explosion-proof glass cover. Slide blocks are movably installed inside each slide groove. The inner ends of the slide blocks are respectively movably installed with both ends of a closed door. Guide rails are fixedly installed on the inner wall of the explosion-proof glass cover near the slide grooves. Movable blocks are movably installed inside each guide rail. The inner ends of each movable block are movably installed on one side of the closed door via a first connecting rod. The other side of the closed door is movably installed on the inner wall of the explosion-proof glass cover via a second connecting rod. Telescopic cylinders are fixedly installed at the bottom of each guide rail, and the driving ends of the telescopic cylinders are fixedly installed in the middle of the corresponding movable block.

[0009] Preferably, an aerosol automatic fire extinguishing device is fixedly installed on one side of the top wall of the explosion-proof glass cover, a sensor assembly is fixedly installed at the bottom of the aerosol automatic fire extinguishing device, and a detection camera is fixedly installed on the other side of the top wall of the explosion-proof glass cover.

[0010] Preferably, the vehicle correction mechanism includes a rectangular opening slot, which is formed at the top of the test bench base. A threaded rod is movably installed inside the rectangular opening slot, and a correction platform is fixedly installed on the outer diameter of the threaded rod. A reduction motor is fixedly installed inside the test bench base on the side near the rectangular opening slot, and the drive end of the reduction motor is fixedly installed at one end of the threaded rod.

[0011] Preferably, both sides of the arc-shaped top leaf spring and the arc-shaped stacked leaf spring are fixedly connected by two sets of limiting brackets. The bottom ends of the arc-shaped stacked leaf springs on both sides are fixedly installed on the top two sides of the cross frame. The middle parts of the arc-shaped top leaf spring and the arc-shaped stacked leaf springs are fixedly installed on the top of the cross frame by U-shaped brackets, and the bottom ends of the U-shaped brackets are fixedly installed at the four corners of the support plate. Several support pads are fixedly installed at the bottom of the cross frame.

[0012] Preferably, the other end of the arc-shaped top leaf spring on the left is movably mounted with a first U-shaped connector, the end of the first U-shaped connector is movably mounted on one end of the first crank, and the other end of the first crank is fixedly mounted on one end of the arc-shaped top leaf spring on the corresponding side on the right.

[0013] Preferably, the other end of the right-side arc-shaped top leaf spring is movably mounted with a second U-shaped connector. The end of the second U-shaped connector is movably mounted on one end of the second crank, and the other end of the second crank is movably mounted on the inner side wall of the mounting groove via a rotating shaft. The middle parts of the corresponding first crank and second crank are movably connected by a connecting rod.

[0014] This invention provides a vehicle testing platform for new energy vehicles with protective devices. It has the following advantages: 1. This invention, through the combination of an arc-shaped top leaf spring and a stacked leaf spring shock absorption mechanism, can perform graded energy absorption and buffering according to the intensity of vibration, effectively absorbing the impact force generated during vehicle braking and shock absorption testing. It reduces the interference of vibration on the acquisition of speed, braking force, suspension parameters, etc., suppresses data fluctuations, avoids data distortion problems, and significantly improves the stability and accuracy of various vehicle performance test results.

[0015] 2. The shock absorption mechanism of this invention is equipped with a crank, connecting rod, and U-shaped connector linkage assembly, possessing adaptive leveling capability. When the vehicle's center of gravity shifts, the structure adjusts the height of the shock absorption components on both sides in a coordinated manner, balancing the force on the platform and ensuring that the supported foot pads are synchronously grounded and bear pressure. This effectively avoids overload damage to components on one side, maintains the levelness of the testing platform, and ensures smooth testing.

[0016] 3. The equipment of this invention is equipped with an explosion-proof glass sealing cover and an electrically operated closed door, which can prevent flying debris and avoid the risks of mechanical operation. It also integrates a monitoring camera, sensors, and an aerosol fire extinguishing device to monitor the internal working conditions in real time and quickly handle potential hazards such as thermal runaway and fire in new energy vehicle batteries. Combined with an automated opening and closing door, it enables unmanned close-range operation, comprehensively improving operational safety. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the closed door in this invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the vehicle correction mechanism in this invention; Figure 6 This is a front view of the present invention; Figure 7 This is a schematic diagram of the shock absorption mechanism in this invention; Figure 8 This is a schematic diagram of the arc-shaped top leaf spring in this invention.

[0018] The components include: 1. Test bench base; 2. Side slip test bench; 3. Brake test bench; 4. Vibration damping test bench; 5. Vehicle alignment mechanism; 501. Rectangular opening slot; 502. Threaded rod; 503. Gear motor; 504. Alignment platform; 6. Conveyor belt; 7. Mounting slot; 8. Vibration damping mechanism; 801. Arc-shaped top leaf spring; 802. Arc-shaped laminated leaf spring; 803. Limiting frame; 804. Cross frame; 805. U-shaped bracket; 806. Support plate; 807. 808. First U-shaped connector; 809. First crank; 810. Second crank; 811. Connecting rod; 812. Support foot pad; 9. In / out ramp; 10. Explosion-proof glass cover; 11. Slide rail; 12. Sliding block; 13. Sealing door; 14. Guide rail; 15. Movable block; 16. First connecting rod; 17. Second connecting rod; 18. Telescopic cylinder; 19. Automatic aerosol fire extinguishing device; 20. Sensor assembly; 21. Detection camera. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0020] Please see the appendix Figure 1 -Appendix Figure 8 This invention provides a new energy vehicle testing platform with protective devices, such as... Figure 1As shown, the system includes a testing platform base 1, which serves as the supporting structure for the entire testing equipment. It integrates and mounts all testing components, protective components, and shock-absorbing support components, bearing all loads during vehicle testing and ensuring the coordinated and stable operation of all structures. A sideslip testing platform 2 is fixedly installed on one side of the top of the testing platform base 1. The sideslip testing platform 2 is primarily used to test the sideslip performance of new energy vehicle wheels, determining whether the vehicle's wheel alignment parameters meet the acceptable standards. It is one of the core components for overall vehicle safety performance testing. A brake testing platform 3 is fixedly installed on the top of the testing platform base 1, near the sideslip testing platform 2. The brake testing platform 3 can specifically test the performance of the vehicle's braking system, simulating braking states under different driving conditions, testing key indicators such as braking force and braking balance, and identifying faults such as brake failure and brake drift. A shock absorber testing platform 4 is fixedly installed on the top of the testing platform base 1, near the brake testing platform 3. The shock absorber testing platform 4 is used to test the shock absorption performance and fatigue level of the new energy vehicle's suspension and shock absorber system, simulating road bumps, verifying the buffering capacity of the vehicle's shock absorber structure, and judging the vehicle's driving comfort and structural stability. A vehicle alignment mechanism 5 is located on the top side of the test platform base 1, near the vibration damping test platform 4. This mechanism, in conjunction with the top camera structure, performs vehicle posture detection and correction, resolving issues of vehicle deviation and tilting after entering the platform. This ensures the vehicle wheels accurately align with each test station, avoiding false or missed detections caused by misalignment. Three mounting slots 7 are located at the bottom of the test platform base 1. These slots are internal cavities specifically designed to provide assembly space for the vibration damping mechanism 8, limiting its installation position and range of motion to prevent positional displacement during operation. Each mounting slot 7 houses a vibration damping mechanism 8, arranged in a parallel, evenly distributed pattern. This provides comprehensive vibration damping and buffering support to the test platform base 1 from the bottom, reducing the vibration and impact generated during testing. The vibration damping mechanism 8 includes an arc-shaped top leaf spring 801, which is the main energy-absorbing component at the top. It can absorb and release the initial vibration impact force transmitted from the base by deforming its arc-shaped structure. Both sides of the mounting slot 7 are equipped with arc-shaped top leaf springs 801, and one end of the left arc-shaped top leaf spring 801 is connected to the inner wall of the mounting slot 7 by a hanger. The hanger acts as a hinge for fixation, ensuring that the left arc-shaped top leaf spring 801 is firmly installed while reserving space for deformation to accommodate the downward and rebound actions of the spring during vibration. The bottom of each arc-shaped top leaf spring 801 is equipped with an arc-shaped stacked leaf spring 802, and the length of the arc-shaped stacked leaf spring 802 decreases from top to bottom. The arc-shaped stacked leaf spring 802 serves as an auxiliary damping component, forming a composite damping system with the arc-shaped top leaf spring 801. The tiered length structure can adapt to vibrations of different intensities. Under high load conditions, multiple sets of leaf springs simultaneously share the impact force, improving the overall damping effect.

[0021] In this embodiment, a conveyor belt 6 is fixedly installed on the top of the testing platform base 1 near the vehicle correction mechanism 5. The conveyor belt 6 serves as an automated vehicle transport component, enabling the new energy vehicle to be tested to move laterally within the platform. This allows the vehicle to sequentially pass through the correction station, shock absorption testing station, braking testing station, and sideslip testing station, eliminating the need for manual vehicle operation and simplifying the testing process. Both ends of the testing platform base 1 are fixedly equipped with inbound and outbound ramps 9, corresponding to the vehicle loading and unloading stations, respectively. The ramp structure eliminates the height difference between the ground and the testing platform base 1, reducing the difficulty of vehicle movement on and off the platform and facilitating smooth vehicle entry and exit from the testing platform.

[0022] Furthermore, an explosion-proof glass cover 10 is fixedly installed on the outer top of the testing platform base 1. The explosion-proof glass cover 10 encloses all testing structures, forming a closed testing chamber. This isolates the chamber from external environmental factors such as dust and wind, and also prevents safety hazards caused by flying debris or tire bursts during testing, thus constructing a basic safety protection barrier. Slide grooves 11 are provided on both sides of the inner wall of the explosion-proof glass cover 10. The slide grooves 11 provide a guide trajectory for the vertical opening and closing of the closed door 13, restricting the movement path of the slider 12 and ensuring that the closed door 13 does not deviate or jam during opening and closing. Sliders 12 are movably installed inside the slide grooves 11. The sliders 12 are fixedly engaged with the ends of the closed door 13 and can synchronously complete the lifting and sliding movements with the closed door 13, sharing the load-bearing capacity of the closed door 13. The inner ends of the sliders 12 are movably installed with the two ends of the closed door 13. The two symmetrically arranged closed doors 13 cooperate with each other to realize the closing and opening of the explosion-proof glass cover 10 chamber. The chamber is closed during operation and opened during maintenance or vehicle entry / exit. Guide rails 14 are fixedly installed on the inner wall of the explosion-proof glass cover 10 near the slide groove 11. The guide rails 14 provide a horizontal moving track for the movable block 15, constrain the movement direction of the movable block 15, and ensure the stability of the transmission structure. Movable blocks 15 are movably installed inside the guide rails 14. The movable blocks 15 act as power transfer components, receiving the driving force of the telescopic cylinder 18 and transmitting the power to the first connecting rod 16, thereby driving the entire transmission structure. The inner ends of the movable blocks 15 are movably installed on one side of the closed door 13 through the first connecting rod 16. The first connecting rod 16 is a core transmission rod that can convert the horizontal displacement of the movable blocks 15 into the vertical lifting displacement of the closed door 13. The other side of the closed door 13 is movably installed on the inner wall of the explosion-proof glass cover 10 through the second connecting rod 17. The second connecting rod 17 plays the role of auxiliary support and limiting transmission, forming a double-link transmission structure with the first connecting rod 16, allowing the closed door 13 to smoothly complete the switching action from vertical storage to horizontal closure. Telescopic cylinders 18 are fixedly installed at the bottom of the guide rail 14, and the drive end of the telescopic cylinders 18 is fixedly installed in the middle of the corresponding side movable block 15. The telescopic cylinders 18 provide a dedicated power source for the opening and closing operation of the closed door 13. Through the extension and retraction of its own piston rod, the movable block 15 is driven to make linear reciprocating motion along the guide rail 14 to realize automated opening and closing control.

[0023] Furthermore, an aerosol automatic fire extinguishing device 19 is fixedly installed on one side of the top wall of the explosion-proof glass enclosure 10. Designed specifically for the characteristics of new energy vehicle testing, the aerosol automatic fire extinguishing device 19 is designed to handle fires caused by battery overheating, short circuits, etc. Upon triggering a fire, it can quickly release extinguishing media to curb the spread of the fire. A sensor assembly 20 is fixedly installed at the bottom of the aerosol automatic fire extinguishing device 19. The sensor assembly 20 integrates temperature sensors, smoke sensors, and other detection elements, enabling it to collect real-time environmental data inside the cavity of the explosion-proof glass enclosure 10 around the clock, accurately identify early fire signals such as high temperatures and smoke, and simultaneously activate the aerosol automatic fire extinguishing device 19. A detection camera 21 is fixedly installed on the other side of the top wall of the explosion-proof glass enclosure 10, facing the detection area of ​​the platform base. On one hand, it captures real-time images of the vehicle inspection, facilitating remote monitoring of the operation status by staff; on the other hand, it collects images of the vehicle's posture, providing data support for the vehicle alignment mechanism 5 to achieve intelligent posture correction.

[0024] Furthermore, the vehicle correction mechanism 5 includes a rectangular slot 501, which is formed on the surface of the test bench base 1 to accommodate the threaded rod 502 and the correction platform 504, while also vertically limiting the correction platform 504 to prevent it from wobbling during operation. The threaded rod 502 is movably installed inside the rectangular slot 501. The threaded rod 502, relying on its external thread structure, works with the correction platform 504 to form a screw drive structure, converting rotational power into linear power. The correction platform 504 is fixedly installed on the outer diameter of the threaded rod 502, directly contacting the vehicle's front wheels. Through its lateral movement, the platform slightly adjusts the position of the front wheels, thereby correcting the vehicle's tilt and deviation. A geared motor 503 is fixedly installed inside the base 1 of the testing table, near the rectangular opening slot 501. The drive end of the geared motor 503 is fixedly installed at one end of the threaded rod 502. The geared motor 503 provides power for the correction operation. It can precisely adjust the speed and direction according to the offset data fed back by the testing camera 21, drive the threaded rod 502 to rotate in the forward or reverse direction, and complete the automated correction operation.

[0025] Furthermore, both sides of the arc-shaped top leaf spring 801 and the arc-shaped laminated leaf spring 802 are fixedly connected by two sets of limiting brackets 803. The limiting brackets 803 are used to bind the ends of the arc-shaped top leaf spring 801 and the arc-shaped laminated leaf spring 802 to prevent the springs from shifting or separating during the damping operation, thus ensuring the integrity of the composite damping structure. The bottom ends of the arc-shaped laminated leaf springs 802 on both sides are fixedly installed on the top sides of the cross frame 804. The cross frame 804 serves as a transitional load-bearing structure, concentrating the impact force transmitted by the damping springs above and evenly distributing the load to the bottom support structure. The middle parts of the arc-shaped top leaf spring 801 and the arc-shaped laminated leaf spring 802 are fixedly installed on the top of the cross frame 804 by U-shaped brackets 805, and the bottom ends of the U-shaped brackets 805 are fixedly installed at the four corners of the support plate 806. The U-shaped brackets 805 are used to reinforce the middle structure of the spring body and prevent excessive bending deformation in the middle when the spring body is compressed. The support plate 806 can increase the bottom force-bearing area and improve the overall structural strength of the shock absorption mechanism 8. Several support pads 812 are fixedly installed at the bottom of the cross frame 804. The support pads 812 are in direct contact with the ground foundation and serve as the bottommost support component of the shock absorption mechanism 8. At the same time, they increase the friction and prevent the platform from slipping during operation.

[0026] Furthermore, a first U-shaped connector 807 is movably mounted on the other end of each of the left-side arc-shaped top leaf springs 801. The first U-shaped connector 807 adopts a hinged assembly method, which can flexibly adapt to the deformation angle of the arc-shaped top leaf spring 801, and at the same time realize the linkage docking between the spring body and the first crank 808. The ends of the first U-shaped connectors 807 are movably mounted on one end of the first crank 808, and the other end of the first crank 808 is fixedly mounted on one end of the corresponding right-side arc-shaped top leaf spring 801. The first crank 808 is the core transmission component of the balance linkage structure, which can rotate synchronously with the lifting and lowering movement of the single-sided arc-shaped top leaf spring 801 to transmit adjustment power.

[0027] Furthermore, a second U-shaped connector 809 is movably mounted on the other end of the right-side arc-shaped top leaf spring 801. The second U-shaped connector 809 has the same structure and function as the first U-shaped connector 807, and is used to complete the movable connection between the arc-shaped top leaf spring 801 and the second crank 810, ensuring the flexibility of power transmission. The ends of the second U-shaped connectors 809 are movably mounted on one end of the second crank 810, and the other end of the second crank 810 is movably mounted on the inner wall of the mounting groove 7 via a rotating shaft. The rotating shaft can rotate and limit the second crank 810 to determine its range of motion, thereby cooperating with the overall balance adjustment operation. The middle parts of the corresponding first crank 808 and second crank 810 are movably connected by a connecting rod 811. The connecting rod 811 acts as a power bridge. When the center of gravity of the test platform base 1 shifts or the damping structure on one side is raised, the height of the damping mechanism 8 on the other side can be adjusted by linking the crank and the connecting rod 811, realizing adaptive leveling of the entire platform and balancing the overall compressive load.

[0028] Working principle: First, the telescopic cylinder 18 drives the movable block 15 to move, which in turn moves one end of the first connecting rod 16. When the first connecting rod 16 moves, it works in conjunction with the second connecting rod 17 to move the closed door 13 from a vertical position to a horizontal position and then raise it, thereby opening the closed door 13. The vehicle to be tested drives onto the testing platform base 1 via the side ramp 9 and then onto the conveyor belt 6, after which the closed door 13 closes. The car is then put in neutral and the brake is released. The conveyor belt 6 is started, moving the car and first moving the front wheels to the vehicle steering mechanism 5. On the bias platform 504, the vehicle's position is detected by the detection camera 21. If the vehicle is tilted, the threaded rod 502 is driven to rotate by the reduction motor 503. With the limit of the rectangular opening slot 501, the correction platform 504 is moved to move the front wheels of the car, thereby correcting the position of the car. Then the conveyor belt 6 continues to control the movement of the car, so that the front wheels of the car pass through the shock absorber test platform 4, the brake test platform 3 and the sideslip test platform 2 in sequence for multiple tests. After the tests are completed, the closed door 13 is opened and the car drives out through the entrance and exit ramp 9 on the other side.

[0029] During the testing process, the rotation of the rollers, rapid acceleration and braking of the vehicle, and shock absorption testing all cause vibrations in the test bench base 1. The support pads 812 contact the ground, and the weight of the test bench base 1 is applied to the uppermost curved top leaf spring 801. The continuous impact force generated during testing causes the curved top leaf spring 801 to compress and absorb energy, then quickly rebounds to release the energy. This damping reduces fluctuations in torque, speed, braking force, axle load, and suspension parameters during data acquisition, improving data accuracy. As the vibration frequency gradually increases, the powerful impact force causes the curved top leaf spring 801 and all the curved laminated leaf springs 802 to deform, allowing each leaf to share the impact force. The leaves between the curved laminated leaf springs 802 rub rapidly to dissipate a large amount of energy. The larger impact force also makes the rebound of the curved laminated leaf springs 802 smoother, greatly reducing the impact force on the test bench base 1. While improving safety, it reduces eccentric wear and abnormal noise of rotating parts, lowers the failure rate of bearings and seals, and significantly reduces maintenance frequency. During testing, when the center of gravity of the test bench base 1 shifts, the support pads 812, crossbeams 804, arc-shaped top leaf springs 801 and arc-shaped laminated leaf springs 802 on one side will be lifted first. The first U-shaped connector 807 will drive one end of the first crank 808 to rotate downwards. The other end of the first crank 808 will drive one end of the second crank 810 to rotate along with it through the connecting rod 811, causing the other end of the second crank 810 to press down on the second U-shaped connector 809. This causes the support pads 812, crossbeams 804, arc-shaped top leaf springs 801 and arc-shaped laminated leaf springs 802 on the other side to descend, so that the support pads 812 can all contact the ground and participate in absorbing the impact force, avoiding excessive pressure on the support pads 812 on one side.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle whole vehicle testing platform with protective devices, comprising a testing platform base (1), characterized in that, A side slip test platform (2) is fixedly installed on one side of the top of the test platform base (1). A brake test platform (3) is fixedly installed on the side of the top of the test platform base (1) near the side slip test platform (2). A shock absorber test platform (4) is fixedly installed on the side of the top of the test platform base (1) near the brake test platform (3). A vehicle correction mechanism (5) is provided on the side of the top of the test platform base (1) near the shock absorber test platform (4). Three mounting brackets are provided at the bottom of the test platform base (1). The mounting groove (7) is provided with a shock-absorbing mechanism (8) inside. The shock-absorbing mechanism (8) includes an arc-shaped top leaf spring (801). Arc-shaped top leaf springs (801) are provided on both sides inside the mounting groove (7), and one end of the arc-shaped top leaf spring (801) is connected to the inner wall of the mounting groove (7) by a hanger. Arc-shaped stacked leaf springs (802) are installed at the bottom of the arc-shaped top leaf springs (801), and the length of the arc-shaped stacked leaf springs (802) decreases from top to bottom. An explosion-proof glass cover (10) is fixedly installed on the outer top of the test platform base (1). Slide grooves (11) are provided on both sides of the inner wall of the explosion-proof glass cover (10). Slide blocks (12) are movably installed inside each slide groove (11). The inner ends of each slide block (12) are movably installed with the two ends of a sealing door (13). Guide rails (14) are fixedly installed on the inner wall of the explosion-proof glass cover (10) near the slide grooves (11). 4) Each of the interiors is equipped with movable blocks (15). The inner ends of the movable blocks (15) are movably installed on one side of the closed door (13) via the first connecting rod (16). The other side of the closed door (13) is movably installed on the inner wall of the explosion-proof glass cover (10) via the second connecting rod (17). The bottom of each guide rail (14) is fixedly equipped with a telescopic cylinder (18), and the driving end of the telescopic cylinder (18) is fixedly installed in the middle of the movable block (15) on the corresponding side. The other end of the arc-shaped top leaf spring (801) on the left side is movably mounted with a first U-shaped connector (807). The end of the first U-shaped connector (807) is movably mounted on one end of the first crank (808), and the other end of the first crank (808) is fixedly mounted on one end of the arc-shaped top leaf spring (801) on the corresponding side on the right side. The other end of the right-side arc-shaped top leaf spring (801) is movably mounted with a second U-shaped connector (809). The end of the second U-shaped connector (809) is movably mounted on one end of the second crank (810), and the other end of the second crank (810) is movably mounted on the inner side wall of the mounting groove (7) via a rotating shaft. The middle parts of the first crank (808) and the second crank (810) are movably connected by a connecting rod (811).

2. The new energy vehicle testing platform with protective device according to claim 1, characterized in that, A conveyor belt (6) is fixedly installed on the top of the test platform base (1) near the side of the vehicle correction mechanism (5), and in and out ramps (9) are fixedly installed at both ends of the test platform base (1).

3. The new energy vehicle whole vehicle testing platform with protective device according to claim 1, characterized in that, An aerosol automatic fire extinguishing device (19) is fixedly installed on one side of the top wall of the explosion-proof glass cover (10), a sensor assembly (20) is fixedly installed at the bottom of the aerosol automatic fire extinguishing device (19), and a detection camera (21) is fixedly installed on the other side of the top wall of the explosion-proof glass cover (10).

4. The new energy vehicle whole vehicle testing platform with protective device according to claim 1, characterized in that, The vehicle correction mechanism (5) includes a rectangular opening slot (501), which is located at the top of the test bench base (1). A threaded rod (502) is movably installed inside the rectangular opening slot (501). A correction platform (504) is fixedly installed on the outer diameter of the threaded rod (502). A reduction motor (503) is fixedly installed inside the test bench base (1) on the side near the rectangular opening slot (501), and the drive end of the reduction motor (503) is fixedly installed at one end of the threaded rod (502).

5. The new energy vehicle whole vehicle testing platform with protective device according to claim 1, characterized in that, The two sides of the arc-shaped top leaf spring (801) and the arc-shaped stacked leaf spring (802) are fixedly connected by two sets of limiting brackets (803). The bottom ends of the arc-shaped stacked leaf springs (802) on both sides are fixedly installed on the top two sides of the cross frame (804). The middle parts of the arc-shaped top leaf spring (801) and the arc-shaped stacked leaf spring (802) are fixedly installed on the top of the cross frame (804) by U-shaped brackets (805), and the bottom ends of the U-shaped brackets (805) are fixedly installed at the four corners of the support plate (806). Several support pads (812) are fixedly installed at the bottom of the cross frame (804).

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