A new energy vehicle axle housing impact test structure

Abstract

This utility model discloses an impact testing structure for axle housings of new energy vehicles, including a test platform with a test bracket. The test platform is equipped with an axle limiting clamping device and a striking device. A scanning detection device is mounted on the test bracket. This utility model relates to the field of new energy vehicle testing technology. It adopts a horizontal-vertical dual-axis drive architecture. The horizontal angle drive motor drives the angle cylindrical block to achieve horizontal rotation, while the vertical angle drive motor drives the telescopic cylindrical block to complete vertical swing through gear meshing. Combined with the angle ball of the ball joint structure and the connecting flange, it can accurately simulate the spatial posture of the axle under complex working conditions. When the angle ball rotates, the limiting electromagnet and limiting magnet inside the ball arc groove form a non-contact force field to absorb impact energy. The neodymium iron boron magnet array of the buffer sector groove and sector slider further disperses stress, reducing mechanical wear and significantly improving equipment durability.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle testing technology, specifically to an impact testing structure for a new energy vehicle axle housing. Background Technology

[0002] The rapid development of the new energy vehicle industry has placed higher demands on the safety performance of axle housings, while traditional testing equipment has significant limitations in terms of technical implementation.

[0003] Insufficient angle adjustment capability: Existing vehicle axle testing equipment mostly adopts fixed or single-axis adjustment structures, which cannot achieve precise adjustment of spatial attitude (such as multi-directional rotation of ±30° horizontally and ±25° vertically), making it difficult to simulate real collision scenarios under complex working conditions, resulting in test results being out of sync with actual use scenarios.

[0004] Poor reliability of buffering mechanisms: Traditional mechanical buffering systems (such as springs or hydraulic buffers) have problems such as slow response speed (millisecond-level delay) and severe mechanical wear (performance degradation of more than 30% after long-term use), making it difficult to absorb high-energy impacts and easily leading to equipment damage or test data distortion. In view of this, in-depth research was conducted on the above problems, which led to this case. Summary of the Invention

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impact testing structure for a new energy vehicle axle housing, comprising a test platform, a test bracket on the test platform, an axle limiting clamping device and a striking device on the test platform, a scanning detection device on the test bracket, an axle limiting clamping device comprising an angular cylindrical block, a test cylindrical groove and a drive groove on the test platform, the angular cylindrical block being inserted into the inner side of the test cylindrical groove via a bearing, a horizontal angle drive motor being provided on the drive groove, a horizontal angle gear groove being provided on the outer side of the angular cylindrical block, a horizontal angle gear being provided on the drive end of the horizontal angle drive motor, the horizontal angle gear being movably inserted into the inner side of the horizontal angle gear groove, an auxiliary support block being provided on the angular cylindrical block, and a pair of angular cylindrical grooves being provided on the angular cylindrical block. A buffer sector groove is formed on the cylindrical groove, and a buffer disc is provided on the angular cylindrical groove. The buffer disc is inserted into the inner side of the cylindrical groove via a bearing. A sector slider is provided on the buffer disc, and the slide rail of the sector slider is inserted into the inner side of the buffer sector groove. An auxiliary support block is installed on the buffer disc, and a pair of angular cylindrical tubes are provided on the auxiliary support block. Telescopic cylindrical blocks are provided on the inner side of the pair of angular cylindrical tubes, and the telescopic cylindrical blocks are installed on the inner side of the angular cylindrical tubes via bearings. A vertical angle drive is provided on the angular cylindrical tubes, and a vertical angle gear is provided on the drive end of the vertical angle drive. A sleeve ring gear groove is formed on the outer side of the telescopic cylindrical block, and the sleeve ring gear groove meshes with the vertical angle gear. A spherical arc groove is formed on the telescopic cylindrical block, and an angular ball is provided on the inner side of the spherical arc groove. A connecting flange is provided on the angular ball.

[0006] Preferably, the striking device includes a horizontal adjusting screw module, which is installed in pairs on the test bench in parallel, and an electromagnetic striker is provided on each pair of horizontal adjusting screw modules.

[0007] Preferably, the scanning detection device includes a scanning lead screw module, wherein multiple scanning lead screw modules are evenly mounted on a test bracket, and a scanning camera is provided on the scanning lead screw module.

[0008] Preferably, a limiting electromagnet is provided on the inner side of the spherical arc groove, and a limiting magnet is provided on the inner side of the angled sphere.

[0009] Preferably, a pair of buffer magnets are respectively provided on the buffer sector groove and the sector slider.

[0010] Preferably, the horizontal adjusting screw module is equipped with a positioning device. Beneficial effects

[0011] This utility model provides an impact testing structure for axle housings of new energy vehicles. It offers the following advantages: This impact testing structure for axle housings of new energy vehicles adopts a horizontal-vertical dual-axis drive architecture. The horizontal angle drive motor drives the angle cylindrical block to achieve horizontal rotation, while the vertical angle drive motor drives the telescopic cylindrical block to complete vertical swinging through gear meshing. Combined with the angle ball of the ball joint structure and the connecting flange for fixation, it can accurately simulate the spatial posture of the axle under complex working conditions. When the angle ball rotates, the limiting electromagnet and limiting magnet inside the ball arc groove form a non-contact force field, absorbing impact energy. The neodymium iron boron magnet array in the buffer sector groove and sector slider further disperses stress, reducing mechanical wear and significantly improving equipment durability. The electromagnetic impactor mounted on the horizontal adjustment screw module uses pulsed electromagnetic drive to accurately simulate collision scenarios at different speeds. Combined with audio frequency feature analysis, it achieves rapid defect identification. The high-precision 3D scanner driven by the scanning screw module generates a real-time axle housing deformation cloud map and connects to the MES system, supporting quality traceability and process optimization. The closed-loop control system ensures synchronous control of the impact force and detection parameters. The core components adopt a standardized interface design, supporting compatibility testing of axles of different specifications. The magnetic levitation buffer system of the auxiliary support block and buffer disk can independently adjust its stiffness to adapt to the testing requirements of axle housings made of new materials such as aluminum alloy and high-strength steel. This system provides an efficient and reliable test platform for the research and development of lightweight and safety performance of new energy vehicles. Attached Figure Description

[0012] Figure 1 This is a front sectional view of the impact test structure for a new energy vehicle axle housing according to the present invention.

[0013] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the impact test structure of the axle housing of a new energy vehicle according to the present invention.

[0014] Figure 3 This is a partial three-dimensional schematic diagram of the impact test structure of the axle housing of a new energy vehicle according to the present invention.

[0015] In the diagram: 1. Test bench; 2. Test bracket; 3. Test cylindrical groove; 4. Drive groove; 5. Angle cylindrical block; 6. Horizontal angle drive motor; 7. Horizontal angle gear groove; 8. Horizontal angle gear; 9. Auxiliary support block; 10. Angle cylindrical groove; 11. Buffer sector groove; 12. Buffer disc; 13. Sector slider; 14. Angle cylindrical tube; 15. Telescopic cylindrical block; 16. Vertical angle drive motor; 17. Vertical angle gear; 18. Set ring gear groove; 19. Angle ball; 20. Connecting flange. Detailed Implementation

[0016] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further. Example

[0018] Please see Figure 1-3 Existing equipment mostly adopts fixed or single-axis adjustment structures, which cannot achieve precise adjustment of spatial attitude (such as multi-directional rotation of ±30° horizontally and ±25° vertically), making it difficult to simulate real collision scenarios under complex working conditions, resulting in test results being out of sync with actual use scenarios; its mechanical buffering system (such as spring or hydraulic buffer) has a slow response speed (millisecond-level delay) and severe mechanical wear (performance degradation of more than 30% after long-term use), making it difficult to absorb high-energy impacts, which can easily cause equipment damage or data distortion; the collision detection process relies on manual measurement or low-precision articulated arm scanners;

[0019] Therefore, this application protects an impact test structure for a new energy vehicle axle housing. The axle is bolted to a pair of connecting flanges 20. A horizontal adjustment screw module is used to adjust the position of an electromagnetic impactor, which then electromagnetically impacts the axle housing. When the axle housing deforms, it drives the connecting flanges 20, which in turn drive the angle ball 19, causing it to rotate along the inner side of the spherical groove. A limiting electromagnet inside the spherical groove magnetically limits the angle rotation (using a magnetic levitation limiting system). When the connecting flanges 20 and the angle ball 19 drive the telescopic cylindrical block 15, the kinetic energy is transmitted sequentially, causing the auxiliary support block 9 to drive the buffer disc 12. The buffer disc 12 then drives the fan-shaped slider 13, which in turn buffers the magnetic field between the fan-shaped slider 13 and the buffer fan-shaped groove 11, thus preventing impact. The deformation and tensile testing limit device generated by the impact can operate according to the horizontal angle drive motor 6 inside the drive groove 4, which drives the horizontal angle gear 8 on the drive end to rotate. The horizontal angle gear 8 drives the horizontal angle gear groove 7 that meshes with it, which drives the angle cylindrical block 5 on it. The angle cylindrical block 5 drives the device on it, thereby changing the angle between the axle housing and the electromagnetic impactor. At the same time, it can operate through the vertical angle drive motor 16, which drives the vertical angle gear 17 on the drive end of the vertical angle drive motor 16 to rotate. The vertical angle gear 17 drives the sleeve ring gear groove 18 that meshes with it, which drives the telescopic cylindrical block 15 on it. This causes the telescopic cylindrical block 15 to rotate vertically along the inner side of the angle cylindrical tube 14, thereby adjusting the vertical angle of the axle housing and performing multi-angle impact detection on the axle housing. At the same time, it can operate through the scanning screw module, which drives the scanning camera on it to detect the axle housing.

[0020] Furthermore, the angle cylindrical block 5 is installed in the cylindrical groove of the test bench 1 via bearings. The groove 7 of the horizontal angle gear 8 on its outer side meshes with the horizontal angle gear 8 driven by the horizontal angle drive motor 6 to achieve horizontal rotation adjustment. The auxiliary support block 9 is connected to the angle cylindrical block 5 via the buffer disk 12. The fan-shaped slider 13 of the buffer disk 12 slides along the buffer fan-shaped groove 11, and works with the buffer magnet to achieve impact buffering. The angle cylindrical tube 14 is equipped with a telescopic cylindrical block 15. The groove of the vertical angle gear 17 on its outer side meshes with the vertical angle gear 17 driven by the vertical angle drive motor 16. The angle ball 19 is rotated through the groove 18 of the sleeve ring gear, and the connecting flange 20 fixes both ends of the axle. The horizontal adjustment screw module is equipped with an electromagnetic impactor, which can accurately locate the impact point and simulate impacts in different directions. The scanning screw module on the test bracket 2 drives the scanning camera to capture the axle housing deformation data in real time.

[0021] In summary, the axle is bolted to the connecting flange 20. The horizontal angle drive 6 drives the angle cylindrical block 5 to rotate horizontally, and the vertical angle drive 16 drives the telescopic cylindrical block 15 to rotate vertically, thus adjusting the axle's spatial posture. The horizontal adjustment screw module adjusts the electromagnetic impactor to the target position, generating instantaneous impact force through pulsed electromagnetic drive to simulate a collision scenario. When the axle deforms, the angle ball 19 rotates along the spherical arc groove, and the limiting electromagnet and the limiting magnet form a dynamic balance through magnetic repulsion, absorbing the impact energy. The magnetic array of the buffer sector groove 11 and the sector slider 13 further disperses stress. The scanning screw module drives a high-precision 3D scanner to automatically acquire the full-size data of the axle housing.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle axle housing impact test structure, characterized in that, The system includes a test bench (1), a test bracket (2) on the test bench (1), an axle limiting clamping device and a striking device on the test bench (1), a scanning detection device on the test bracket (2), an axle limiting clamping device including an angle cylindrical block (5), a test cylindrical groove (3) and a drive groove (4) on the test bench (1), the angle cylindrical block (5) being inserted into the inner side of the test cylindrical groove (3) via bearings, and a horizontal angle drive motor (6) on the drive groove (4). A horizontal angle gear groove (7) is provided on the outer side of the angle cylindrical block (5). A horizontal angle gear (8) is provided on the driving end of the horizontal angle drive motor (6). The horizontal angle gear (8) is movably inserted into the inner side of the horizontal angle gear groove (7). An auxiliary support block (9) is provided on the angle cylindrical block (5). A pair of angle cylindrical grooves (10) are provided on the angle cylindrical block (5). A buffer sector groove (11) is provided on the angle cylindrical groove (10). A buffer disc (12) is provided on the angle cylindrical groove (10). The buffer disc (12) is inserted into the inner side of the cylindrical groove via a bearing. A sector-shaped slider (13) is provided on the buffer disc (12). The slide rail of the sector-shaped slider (13) is inserted into the inner side of the buffer sector groove (11). The auxiliary support block (9) is installed on the buffer disc (12). A pair of angled cylindrical tubes (14) are provided on the auxiliary support block (9). Telescopic cylindrical blocks (15) are provided on the inner side of the pair of angled cylindrical tubes (14). The telescopic cylindrical blocks (15) are installed on the angled cylindrical tubes (14) via bearings. Inside the cylindrical tube (14), a vertical angle drive (16) is provided on the angle cylindrical tube (14). A vertical angle gear (17) is on the driving end of the vertical angle drive (16). A sleeve ring gear groove (18) is provided on the outer side of the telescopic cylindrical block (15). The sleeve ring gear groove (18) meshes with the vertical angle gear (17). A spherical arc groove is provided on the telescopic cylindrical block (15). An angle ball (19) is provided inside the spherical arc groove. A connecting flange (20) is provided on the angle ball (19).

2. The impact test structure of a new energy vehicle axle housing according to claim 1, characterized in that, The striking device includes a horizontal adjusting screw module, which is installed in pairs on the test bench (1) in parallel. An electromagnetic striker is provided on each pair of horizontal adjusting screw modules.

3. The impact test structure of a new energy vehicle axle housing according to claim 2, characterized in that, The scanning detection device includes a scanning lead screw module, which is evenly installed on the test bracket (2) in multiple units, and a scanning camera is provided on the scanning lead screw module.

4. The impact test structure for a new energy vehicle axle housing according to claim 3, characterized in that, A limiting electromagnet is provided on the inner side of the spherical arc groove, and a limiting magnet is provided on the inner side of the angle ball (19).

5. The impact test structure for a new energy vehicle axle housing according to claim 4, characterized in that, A pair of buffer magnets are respectively provided on the buffer sector groove (11) and the sector slider (13).

6. The impact test structure for a new energy vehicle axle housing according to claim 5, characterized in that, The horizontal adjusting screw module is equipped with a positioning device.

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