Detachable automatic impact load shedding device and test method

Abstract

This invention relates to a detachable, automatically retractable impact load device and testing method. The device includes a boundary support device, a loading device, and a recovery device. The boundary support device comprises a base section, a middle section, and a head section that are interlocked from bottom to top. The loading device includes a gripper structure, a moment measuring structure, and an impact box structure located inside the boundary support device. The moment measuring structure includes two components respectively engaged on both sides of the gripper structure, and the impact box structure is located at the lower end of the gripper structure. The recovery device includes a motor located at the top of the head section. This invention solves the problems of low automation and low testing efficiency in traditional impact load devices, and optimizes the shortcomings of unidirectional impact testing. It enables rapid assembly and disassembly in different environments, and achieves automatic release and recovery of the impact load.

Description

Technical Field

[0001] This invention relates to the field of marine platform structural strength testing technology, and more specifically, to a detachable automatic shock load retraction device and testing method. Background Technology

[0002] With the development of aerospace and sea-based launch technologies, rocket launches from mobile sea platforms have become an important trend. However, the rocket ignition and liftoff generate enormous impact loads, which are transferred to the platform deck via the launch system. This poses a severe challenge to the platform's structural strength, launch stability, and equipment safety. To effectively assess the reliability of the platform structure and launch system during the ground or dockside phase, this impact process needs to be simulated in a laboratory or test range environment.

[0003] Traditional impact load simulation methods mostly use unidirectional impact test benches, which often require a lot of manual intervention for load setting, release, and reset. This results in low test efficiency, poor repeatability, and difficulty in achieving high-precision timing synchronization and closed-loop control with data acquisition systems, leading to low levels of automation and integration. Traditional impact load devices suffer from problems such as low automation and low test efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a detachable automatic impact load release device and test method, which can realize rapid assembly and disassembly in different environments and realize automatic release and automatic recovery of impact load.

[0005] The technical solution adopted by the present invention to solve its technical problem is: to construct a detachable automatic impact load recovery device, including a boundary support device, a loading device and a recovery device; The boundary support device includes a base section, a middle section, and a head section that are interlocked from bottom to top. The loading device includes a gripper structure, a moment measuring structure, and an impact box structure located inside the boundary support device. The moment measuring structure includes two parts respectively clamped on both sides of the gripper structure, and the impact box structure is located at the lower end of the gripper structure. The recycling device includes a motor, which is located at the top of the first section.

[0006] According to the above scheme, screw holes are evenly arranged vertically on both sides of the base section, the middle section and the first section. The base section, the middle section and the first section are all cubes. A boss is provided on the top of the base section, a groove is provided on the bottom of the middle section, a boss is provided on the top of the middle section and a groove is provided on the bottom of the first section.

[0007] According to the above scheme, the gripper structure includes a gripper base and a gripper head. The gripper base is connected to the motor through a motor push rod. A small pad is provided on the front surface of the gripper base. A first spring is provided on the left and right sides of the small pad. The other end of the first spring is connected to the gripper head. The gripper head is movably connected to the front surface of the gripper base.

[0008] According to the above scheme, the torque measuring structure includes a torque measuring device and a cam. The cam is fixedly mounted on the front end surface of the torque measuring device. A small push rod is fixedly mounted on the upper part of the cam, and a large push rod is fixedly mounted on the lower part of the cam. A second spring is fixedly mounted on the bottom of the torque measuring device, and a second spring support is fixedly mounted on the end of the second spring. A support column for fixing the small push rod is provided on the front end surface of the torque measuring device, and the support column is located at the lateral end of the small push rod.

[0009] According to the above scheme, the impact box structure includes an impact box and an impact box baffle. An impact support and a column are provided on the upper surface of the impact box. The impact support is located on the upper surface of the impact box. There are two columns located on the left and right sides of the impact support. Multiple layers of transverse partitions are provided inside the impact box. An impact box baffle is provided on the front surface of the impact box. An impact head is provided at the bottom of the impact box.

[0010] According to the above scheme, the motor is fixedly mounted on the top of the first section by a motor base pad, which is cut into two parallel pieces and mounted on the top.

[0011] According to the above scheme, it also includes a loading object device, which is the test structure and pressure sensor being tested. According to the above scheme, the chuck and the jaw base are fixedly connected by bolts, the torque measuring device is fixedly connected to the base section, the middle section or the first section by bolts, and the cam is connected to the large push rod and the small push rod by bolts respectively.

[0012] According to the above scheme, one end of the first spring is fixedly connected to the clamp and the other end is fixedly connected to the small pad by welding. The small pad is connected to the clamp base by welding. The support column is connected to the clamp base by welding. The cam is connected to the torque meter by welding. One end of the second spring is connected to the torque meter and the other end is connected to the second spring support by welding.

[0013] The present invention also provides a test method for a detachable automatic shock load retraction device, comprising the following steps: S1. According to the required impact load size, load is applied to the cross plate of the impact box and the impact box baffle is installed. The impact head is installed according to the required impact head type. S2. Place the impact box on the base section, and assemble the middle section and the first section on the base section according to the required impact load height; S3. Connect the torque meter to the middle section or the first section according to the required impact load height; S4. Slowly insert the chuck from the top of the first section. When the wedge-shaped tip of the chuck contacts the impact support, the chuck will be slowly opened by the impact support until the wedge-shaped tip of the chuck is at the bottom of the impact support, thus completing the clamping of the load. At the same time, assemble the motor base pad at the top of the first section and connect the chuck to the motor. S5. Start the motor and slowly lift the chuck. When the first column on the impact box contacts the large push rod, as the chuck rises, the large push rod continuously pushes the cam to rotate, causing the small push rod to contact the end of the chuck and continuously increasing the thrust. At the same time, the second spring located below the fixed torque measuring device is continuously compressed, providing an acceleration to the load until the chuck is released, that is, the load reaches the required height and the load falls, completing the automatic drop loading of the impact load. S6. Repeat step S4 to complete the recovery of the payload.

[0014] The detachable automatic shock load retraction device and test method of the present invention have the following beneficial effects: 1. This invention enables rapid assembly and disassembly in different environments through a boundary support module, fixes the falling track of the impact load, replaces different types of impact heads to simulate different forms of impact load, simulates impact loads at different heights by adjusting the position of the loading module, simulates impact conditions under different loads by adjusting the number of loads in the impact box, realizes automatic release of the impact load through the loading module, and realizes automatic recovery of the impact load through the recovery module. 2. This invention achieves testing requirements in different environments by using a base section, middle section and first section as the boundary support module is connected by a snap-fit ​​method, and by increasing or decreasing the number of middle sections, while reducing the maintenance and replacement costs of components. 3. This invention achieves automatic recovery and resetting of the impactor through a motor-driven recovery device, combined with the automatic release function of the loading device, which reduces manual intervention, shortens the test cycle, improves test efficiency, and avoids the potential safety risks of traditional manual operation. 4. This invention, through flexible adjustment of the number of loads inside the impact box and the combination of replaceable impact heads, can realize various load conditions from single impact to multiple continuous impacts, and from concentrated force to distributed force, and can be applied to research needs in different fields. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the detachable automatic shock load retraction device of the present invention; Figure 2This is a cross-sectional view of the detachable automatic shock load retraction device of the present invention; Figure 3 This is a schematic diagram of the boundary support device structure of the present invention. Figure 4 This is a schematic diagram of the base structure of the present invention; Figure 5 This is a schematic diagram of the middle section structure of the present invention; Figure 6 This is a schematic diagram of the first section of the structure of the present invention; Figure 7 This is a schematic diagram of the motor base pad structure of the present invention; Figure 8 This is a schematic diagram of the motor structure of the present invention; Figure 9 This is a schematic diagram of the impact head structure of the present invention; Figure 10 This is a schematic diagram of the impact box structure of the present invention; Figure 11 This is a schematic diagram of the moment measuring structure of the present invention; Figure 12 This is a schematic cross-sectional view of the moment measuring structure of the present invention; Figure 13 This is a schematic diagram of the gripper structure of the present invention; Figure 14 This is a schematic diagram of the gripper structure of the present invention; Figure 15 This is a schematic diagram of the loading device structure of the present invention; Figure 16 This is a schematic diagram of the recycling device of the present invention; In the diagram: 1. Base section, 2. Screw hole, 3. Boss, 4. Middle section, 5. Groove, 6. First section, 8. Motor base pad, 9. First spring, 10. Motor, 11. Impact head, 12. Impact box, 13. Horizontal partition, 14. Impact box baffle, 15. Column, 16. Impact support, 17. Torque gauge, 18. Cam, 19. Large push rod, 20. Small push rod, 21. Second spring, 22. Support column, 23. Second spring support, 24. Gripper base, 25. Gripper, 26. Motor push rod, 27. Small pad, 28. Gripper device. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0017] like Figure 1-15 As shown, the detachable automatic shock load recovery device of the present invention includes a boundary support device, a loading device, and a recovery device. It also includes a load-bearing device, which is the test structure and pressure sensor. In a preferred embodiment of the present invention, the boundary support device includes a base segment 1, a middle segment 4, and a first segment 6 that are interlocked from bottom to top. Screw holes 2 are vertically and evenly distributed on both sides of the base segment 1, the middle segment 4, and the first segment 6. The base segment 1, the middle segment 4, and the first segment 6 are all cubes. A boss 3 is provided on the top of the base segment 1, and a groove 5 is provided on the bottom of the middle segment 4. The boss 3 on the bottom of the base segment 1 and the groove 5 on the bottom of the middle segment 4 overlap. The boss 3 on the middle segment 4 also overlaps with the groove 5 on other middle segments 4 or the groove 5 on the bottom of the first segment 6.

[0018] In a preferred embodiment of the present invention, the loading device includes a gripper structure, a moment measuring structure, and an impact box structure located inside the boundary support device. The moment measuring structure includes two parts respectively clamped on both sides of the gripper structure, and the impact box structure is located at the lower end of the gripper structure.

[0019] The gripper structure includes a gripper base 24 and a gripper head 25. The gripper base 24 is connected to the motor 10 via a motor push rod 26. A small pad 27 is provided on the front surface of the gripper base 24. A first spring 9 is provided on both sides of the small pad 27. The other end of the first spring 9 is connected to the gripper head 25. The gripper head 25 is movably connected to the front surface of the gripper base 24. The gripper base 24 is used to fix the gripper head 25, and the first spring 9 is used to control the tension of the gripper head 25.

[0020] The torque measuring structure includes a torque meter 17 and a cam 18. The cam 18 is fixedly mounted on the front surface of the torque meter 17. A small push rod 20 is fixedly mounted on the upper part of the cam 18, and a large push rod 19 is fixedly mounted on the lower part of the cam 18. A second spring 21 is fixedly mounted on the bottom of the torque meter 17, and a second spring support 23 is fixedly mounted on the end of the second spring 21. A support column 22 for fixing the small push rod 20 is provided on the front surface of the torque meter 17, and the support column 22 is located at the lateral end of the small push rod 20. The large push rod 19 and the small push rod 20 are used to provide thrust, the second spring 21 is used to provide acceleration, and the cam 18 is used to push the small push rod 20.

[0021] The impact box structure includes an impact box 12 and an impact box baffle 14. An impact support 16 and a column 15 are provided on the upper surface of the impact box 12. The impact support 16 is located on the upper surface of the impact box 12, and two columns 15 are located on the left and right sides of the impact support 16 respectively. Multiple layers of transverse partitions 13 are provided inside the impact box 12. The impact box baffle 14 is provided on the front surface of the impact box 12, and an impact head 11 is provided at the bottom of the impact box 12. The impact box baffle 14 is used to fix the impact box 12, the transverse partitions 13 are used to adjust different loads, and the columns 15 and the impact head 11 are used to apply thrust.

[0022] In a preferred embodiment of the present invention, the recycling device includes a motor 10, which is disposed on top of the first section 6. The motor 10 is fixedly disposed on top of the first section 6 by motor base pads 8, and the motor base pads 10 are two parallel pieces disposed on top. The clamp 25 is fixedly connected to the gripper base 24 by bolts, and the torque meter 17 is fixedly connected to the base section 1, the intermediate section 4, or the first section 6 by bolts. The cam 18 is connected to the large push rod 19 and the small push rod 20 by bolts. One end of the first spring 9 is fixedly connected to the clamp 25 and the other end is fixedly connected to the small pad 27 by welding. The small pad 27 is fixedly connected to the gripper base 24 by welding. The support column 22 is fixedly connected to the base section 1 by welding. The cam 18 is fixedly connected to the torque meter 17 by welding. One end of the second spring 21 is fixedly connected to the torque meter 17 and the other end is fixedly connected to the second spring 21 support by welding.

[0023] The present invention also provides a test method for a detachable automatic shock load retraction device, comprising the following steps: S1. According to the required impact load size, the load is installed on the transverse partition 13 of the impact box 12 and the impact box baffle 14 is installed. Then, according to the required impact head type, the impact head 11 is installed. S2. Place the impact box 12 on the base section 1, and assemble the middle section 4 and the first section 6 on the base section 1 according to the required impact load height. S3. Connect the fixed torque measuring device 17 to the middle section 4 or the first section 6 according to the required impact load height. S4. Slowly insert the chuck 25 from the top of the first section 6. When the wedge-shaped tip of the chuck 25 contacts the impact support 16, the chuck 25 will be slowly opened by the impact support 16 until the wedge-shaped tip of the chuck 25 is located at the bottom of the impact support 16, thus completing the clamping of the load. At the same time, assemble the pad block of the motor 10 base section 1 at the top of the first section 6 to connect the chuck 25 to the motor 10. S5. Start the motor 10 and slowly lift the chuck 25. When the column 15 on the impact box 12 contacts the large push rod 19, as the chuck 25 rises, the large push rod 19 continuously pushes the cam 18 to rotate, causing the small push rod 20 to contact the end of the chuck 25 and continuously increasing the thrust. At the same time, the spring located below the pad of the fixed cam 18 is continuously compressed, providing an acceleration to the load until the chuck 25 is released, that is, the load reaches the required height and the load falls, completing the automatic drop loading of the impact load. S6. Repeat step S4 to complete the recovery of the payload.

[0024] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A detachable automatic impact load retraction device, characterized in that, Includes boundary support devices, loading devices, and recovery devices; The boundary support device includes a base section, a middle section, and a head section that are interlocked from bottom to top. The loading device includes a gripper structure, a moment measuring structure, and an impact box structure located inside the boundary support device. The moment measuring structure includes two parts respectively clamped on both sides of the gripper structure, and the impact box structure is located at the lower end of the gripper structure. The recycling device includes a motor, which is located at the top of the first section.

2. The detachable automatic retraction impact load device according to claim 1, characterized in that, Screw holes are evenly arranged vertically on both sides of the base section, the middle section and the first section. The base section, the middle section and the first section are all cubes. A boss is provided on the top of the base section. A groove is provided on the bottom of the middle section. A boss is provided on the top of the middle section and a groove is provided on the bottom of the first section.

3. The detachable automatic shock load retraction device according to claim 1, characterized in that, The gripper structure includes a gripper base and a gripper head. The gripper base is connected to a motor via a motor push rod. A small pad is provided on the front surface of the gripper base. A first spring is provided on the left and right sides of the small pad. The other end of the first spring is connected to the gripper head. The gripper head is movably connected to the front surface of the gripper base.

4. The detachable automatic shock load retraction device according to claim 1, characterized in that, The torque measuring structure includes a torque meter and a cam. The cam is fixedly mounted on the front end surface of the torque meter. A small push rod is fixedly mounted on the upper part of the cam, and a large push rod is fixedly mounted on the lower part of the cam. A second spring is fixedly mounted on the bottom of the torque meter, and a second spring support is fixedly mounted on the end of the second spring. A support column for fixing the small push rod is provided on the front end surface of the torque meter, and the support column is located at the lateral end of the small push rod.

5. The detachable automatic retraction impact load device according to claim 1, characterized in that, The impact box structure includes an impact box and an impact box baffle. An impact support and a column are provided on the upper surface of the impact box. The impact support is located on the upper surface of the impact box. There are two columns located on the left and right sides of the impact support. Multiple layers of transverse partitions are provided inside the impact box. An impact box baffle is provided on the front surface of the impact box. An impact head is provided at the bottom of the impact box.

6. The detachable automatic retraction impact load device according to claim 1, characterized in that, The motor is fixedly mounted on the top of the first section by a motor base pad, which is cut into two parallel pieces and mounted on the top.

7. The detachable automatic retraction impact load device according to claim 1, characterized in that, It also includes the loaded object device, which is the test structure and pressure sensor being tested.

8. The detachable automatic retraction impact load device according to claim 1, characterized in that, The chuck and the gripper base are fixedly connected by bolts. The torque measuring device is fixedly connected to the base section, the middle section or the first section by bolts. The cam is connected to the large push rod and the small push rod by bolts respectively.

9. The detachable automatic retraction impact load device according to claim 1, characterized in that, One end of the first spring is fixedly connected to the clamp and the other end is fixedly connected to the small pad by welding. The small pad is connected to the clamp base by welding. The support column is connected to the clamp base by welding. The cam is connected to the torque meter by welding. One end of the second spring is connected to the torque meter and the other end is connected to the second spring support by welding.

10. A test method using the detachable automatic shock load retraction device as described in claim 1, characterized in that, Includes the following steps: S1. According to the required impact load size, load is applied to the cross plate of the impact box and the impact box baffle is installed. The impact head is installed according to the required impact head type. S2. Place the impact box on the base section, and assemble the middle section and the first section on the base section according to the required impact load height; S3. Connect the torque meter to the middle section or the first section according to the required impact load height; S4. Slowly insert the chuck from the top of the first section. When the wedge-shaped tip of the chuck contacts the impact support, the chuck will be slowly opened by the impact support until the wedge-shaped tip of the chuck is at the bottom of the impact support, thus completing the clamping of the load. At the same time, assemble the motor base pad at the top of the first section and connect the chuck to the motor. S5. Start the motor and slowly lift the chuck. When the first column on the impact box contacts the large push rod, as the chuck rises, the large push rod continuously pushes the cam to rotate, causing the small push rod to contact the end of the chuck and continuously increasing the thrust. At the same time, the second spring located below the fixed torque measuring device is continuously compressed, providing an acceleration to the load until the chuck is released, that is, the load reaches the required height and the load falls, completing the automatic drop loading of the impact load. S6. Repeat step S4 to complete the recovery of the payload.

Images