Turnover mechanism of hydraulic bursting test device for vehicle hydrogen cylinder

Abstract

The utility model discloses a turnover mechanism of a vehicle hydrogen cylinder water pressure bursting test device, the turnover mechanism is composed of a support underframe, a support platform, gas cylinder clamping assemblies, gas cylinder horizontal clamping assemblies and a hydraulic cylinder, in the utility model, the support platform is provided with a plurality of gas cylinder clamping assemblies and a plurality of gas cylinder horizontal clamping assemblies, meanwhile, the overall stability of the mechanism is kept through the supporting bottom frame at the bottom, the supporting platform and the supporting bottom frame are connected through the rotating shaft, the hydraulic cylinder is further arranged between the supporting platform and the supporting base, the structural connection of the supporting platform and the supporting base is enhanced through the hydraulic cylinder, and the stability of the mechanism is improved. The bearing capacity of the mechanism is improved, the supporting platform is driven to rotate through the hydraulic cylinder, the whole overturning process is kept stable, and the safety and flexibility of the blasting experiment are further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen energy technology, and in particular to a flipping mechanism for a vehicle-mounted hydrogen cylinder water pressure explosion test device. Background Technology

[0002] Current tilting mechanisms for hydrostatic burst testing of automotive hydrogen cylinders are primarily designed for tilting small automotive hydrogen cylinders. However, with industry development and the varying applications of hydrogen cylinders, their sizes, types, and test pressures have increased, requiring tilting mechanisms with greater load-bearing capacity. Existing tilting mechanisms, when filled with the medium during hydrostatic burst testing, cannot meet the high load-bearing capacity and cannot reliably tilt large automotive hydrogen cylinders, resulting in lower safety and flexibility in burst testing.

[0003] Therefore, existing technologies still need to be improved and enhanced. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a flipping mechanism for a vehicle hydrogen cylinder hydrostatic explosion test device, which aims to solve the problem that the existing flipping mechanisms have low load-bearing capacity, which makes it impossible to stably complete the flipping of large-sized vehicle hydrogen cylinders, resulting in low safety and flexibility in explosion tests.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tilting mechanism for a vehicle-mounted hydrogen cylinder hydrostatic explosion test device comprises a support base, a support platform, a cylinder clamping assembly, a cylinder horizontal clamping assembly, and a hydraulic cylinder. The support base is connected to the support platform via a rotating shaft and has a slot. The support platform has multiple gaps, and multiple cylinder clamping assemblies are spaced apart at the upper end of the support platform. The cylinder horizontal clamping assembly is located at the gaps in the support platform. The cylinder is fixed to the support platform by the cylinder clamping assembly and the cylinder horizontal clamping assembly. One end of the hydraulic cylinder is rotatably connected to the support base, and the other end is rotatably connected to the side of the support platform away from the slot.

[0007] Furthermore, a baffle is provided on the side of the support platform facing the slot, and a gas cylinder blocking bracket is provided on the baffle.

[0008] Furthermore, the support platform has slide rails on two opposite sides. The gas cylinder clamping assembly consists of a clamping frame, a cylinder, a linear shaft, and a clamping fixture. The two ends of the clamping frame are mounted on the slide rails via sliders. The cylinder is located in the middle of the clamping frame, and its output end passes through the clamping frame and is connected to the clamping fixture. The linear shaft is located on both sides of the cylinder and passes through the clamping frame and is connected to both ends of the clamping fixture.

[0009] Furthermore, the clamping fixture has a V-shaped structure with an included angle of 90°-170°.

[0010] Furthermore, the gas cylinder horizontal clamping assembly consists of a horizontal clamping support block, a horizontal clamping slider, a lead screw support seat, a horizontal clamping screw, and a handwheel. The lead screw support seat is located on both sides of the bottom of the support platform. The horizontal clamping screw is rotatably connected to the lead screw support seat, and one end of the horizontal clamping screw is connected to a handwheel. The outer surface of the horizontal clamping screw has two sets of threads with opposite directions of rotation centered on the center of the support platform. Two horizontal clamping sliders are located on the horizontal clamping screw, and the horizontal clamping support block is screwed and fixed to the horizontal clamping slider.

[0011] Furthermore, the horizontal clamping support block is a right-angled triangular slider, and the inclined surfaces of the two right-angled triangular sliders are arranged opposite each other.

[0012] Furthermore, the hydraulic cylinder is connected to the hydraulic pump station, which controls the direction of the output pressure through an electromagnetic directional valve, thereby controlling the extension and retraction of the hydraulic cylinder. A hydraulically controlled check valve is also connected between the electromagnetic directional valve and the hydraulic cylinder.

[0013] Furthermore, the cylinder is connected to an air source, which controls the direction of the output pressure through a three-position five-way valve, thereby controlling the extension and retraction of the cylinder. An induction check valve, a speed control valve, and a three-position five-way valve are connected sequentially between the cylinder and the air source.

[0014] The technical solution adopted in this utility model has the following beneficial effects:

[0015] In this invention, multiple gas cylinder clamping components and multiple gas cylinder horizontal clamping components are set on the support platform. Large-sized hydrogen cylinders can be clamped to prevent them from falling during the flipping process. At the same time, the bottom is supported by a base frame to maintain the overall stability of the mechanism. The support platform and the base frame are connected by a rotating shaft, and a hydraulic cylinder is also provided between the support platform and the base frame. The hydraulic cylinder not only strengthens the structural connection between the support platform and the base frame and improves the load-bearing capacity of the mechanism, but also drives the support platform to rotate, so that the entire flipping process remains stable, further ensuring the safety and flexibility of the explosion experiment. Attached Figure Description

[0016] Figure 1 A schematic diagram of the planar structure of the flipping mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model;

[0017] Figure 2 A three-dimensional structural schematic diagram of the flipping mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model;

[0018] Figure 3 A schematic diagram of the flipping mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model after flipping;

[0019] Figure 4 A schematic diagram of the cylinder clamping assembly structure of the flipping mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model;

[0020] Figure 5 A schematic diagram of the cylinder horizontal clamping assembly structure of the tilting mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model;

[0021] Figure 6 A schematic diagram of the hydraulic system structure of the tilting mechanism of a vehicle hydrogen cylinder hydrostatic explosion test device provided by this utility model;

[0022] Figure 7 A schematic diagram of the pneumatic system structure of the flipping mechanism of a vehicle-mounted hydrogen cylinder hydrostatic explosion test device provided by this utility model.

[0023] 1. Support base frame; 2. Rotary shaft; 3. Support platform; 4. Gas cylinder clamping assembly; 5. Gas cylinder horizontal clamping assembly; 6. Hydraulic cylinder; 7. Clamping frame; 8. Cylinder; 9. Linear shaft; 10. Clamping fixture; 11. Groove; 12. Horizontal clamping support block; 13. Horizontal clamping slider; 14. Screw support seat; 15. Horizontal clamping screw; 16. Handwheel; 17. Clearance; 18. Hydraulic control check valve; 19. Solenoid directional valve; 20. Hydraulic pump station; 21. Baffle; 22. Induction check valve; 23. Speed ​​control valve; 24. Three-position five-way valve; 25. Gas source; 26. Gas cylinder blocking frame; 27. Slide rail; 28. Slider. Detailed Implementation

[0024] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0025] A tilting mechanism for a vehicle-mounted hydrogen cylinder hydrostatic explosion test device, such as Figure 1 and Figure 2As shown, the flipping mechanism consists of a support base frame 1, a support platform 3, a gas cylinder clamping assembly 4, a gas cylinder horizontal clamping assembly 5, and a hydraulic cylinder 6. The support base frame 1 is connected to the support platform 3 via a rotating shaft 2, and the support base frame 1 is provided with a slot 11. The support platform 3 is provided with multiple gaps 17. Multiple gas cylinder clamping assemblies 4 are spaced apart on the upper end of the support platform 3. The gas cylinder horizontal clamping assembly 5 is provided at the gaps 17 of the support platform 3. The gas cylinder is fixed to the support platform 3 by the gas cylinder clamping assembly 4 and the gas cylinder horizontal clamping assembly 5. One end of the hydraulic cylinder 6 is rotatably connected to the support base frame 1, and the other end is rotatably connected to the side of the support platform 3 away from the slot 11. The hydraulic cylinder 6 is fixed to the support platform 3 and the support base frame 1 by a support shaft and a nut.

[0026] First, the hydrogen cylinder is clamped and fixed by multiple sets of cylinder clamping components 4 and cylinder horizontal clamping components 5, keeping the hydrogen cylinder stable. During the flipping process, the hydraulic cylinder 6 is activated, pushing the support platform 3 to rotate around the rotation axis 2, causing the support platform 3 to rotate into the slot 11, thus completing the flipping action of the hydrogen cylinder. This allows the hydrogen cylinder to complete a 90° angle flip, changing from a horizontal state to a side-standing state. Figure 3 As shown.

[0027] Multiple gas cylinder clamping components 4 and multiple gas cylinder horizontal clamping components 5 are installed on the support platform 3. These components can clamp large-sized hydrogen cylinders, improving the load-bearing capacity at various angles during the flipping process and preventing them from falling. This makes the overall mechanism more suitable for large-sized hydrogen cylinders. At the same time, the bottom is supported by a support frame 1 to maintain the overall stability of the mechanism. The support platform 3 and the support frame 1 are connected by a rotating shaft 2. A hydraulic cylinder 6 is also installed between the support platform 3 and the support base. The hydraulic cylinder 6 not only strengthens the structural connection between the support platform 3 and the support base and improves the load-bearing capacity of the mechanism, but also drives the support platform 3 to rotate, keeping the entire flipping process stable and further ensuring the safety and flexibility of the explosion experiment.

[0028] Meanwhile, a baffle 21 is provided on the side of the support platform 3 facing the slot 11. A gas cylinder blocking frame 26 is provided on the baffle 21. When the hydrogen cylinder is flipped, the blocking frame 26 prevents the hydrogen cylinder from sliding directly to the ground after flipping, thus forming a buffer and further ensuring the safety of the explosion test.

[0029] In the embodiments of this utility model, such as Figure 2 and Figure 4As shown, the support platform 3 has slide rails 27 on two opposite sides. The gas cylinder clamping assembly 4 consists of a clamping frame 7, a cylinder 8, a linear shaft 9, and a clamping fixture 10. The two ends of the clamping frame 7 are mounted on the slide rails 27 via sliders 28. The cylinder 8 is located in the middle of the clamping frame 7, and its output end passes through the clamping frame 7 and is connected to the clamping fixture 10. The linear shaft 9 is located on both sides of the cylinder 8 and passes through the clamping frame 7 to connect with the two ends of the clamping fixture 10. The clamping fixture 10 has a V-shaped structure with an included angle of 90°-170°.

[0030] Select the appropriate clamping fixture 10 according to the diameter of the vehicle hydrogen cylinder. When the diameter of the vehicle hydrogen cylinder is 200-500mm, select the clamping fixture 10 with a smaller angle; when the diameter of the vehicle hydrogen cylinder is 500-1200mm, select the clamping fixture 10 with a larger angle. After selection, it is installed and fixed on the clamping frame 7 via the cylinder 8 and the linear shaft 9. Due to the setting of the slide rail 27 and the slider 28, the entire gas cylinder clamping assembly 4 can slide on the slide rail 27 of the support device 2, such as... Figure 1 The cylinder can slide left and right, thereby adjusting the position of the cylinder clamping component 4 on the support platform 3 according to the length of the cylinder.

[0031] In this embodiment, as Figure 2 and Figure 5 As shown, the gas cylinder horizontal clamping assembly 5 consists of a horizontal clamping support block 12, a horizontal clamping slider 13, a lead screw support seat 14, a horizontal clamping screw 15, and a handwheel 16. The lead screw support seat 14 is located on both sides of the bottom of the support platform 3. The horizontal clamping screw 15 is rotatably connected to the lead screw support seat 14, and one end of the horizontal clamping screw 15 is connected to the handwheel 16. The outer surface of the horizontal clamping screw 15 has two sets of threads with opposite directions of rotation centered on the center of the support platform 3. Two horizontal clamping sliders 13 are located on the horizontal clamping screw 15, and the horizontal clamping support block 12 is screwed and fixed to the horizontal clamping slider 13.

[0032] The horizontal clamping support block 12 is fixed to the horizontal clamping slider 13 with screws. The horizontal clamping screw 15 is fixed to the support platform 3 after being connected to the lead screw support seat 14 by threads. Since the left and right horizontal clamping sliders 13 and the left and right ends of the horizontal clamping screw 15 rotate in different directions, the horizontal clamping screw 15 is rotated by the rotation of the handwheel 16, thereby adjusting the distance between the two horizontal clamping support blocks 12 to clamp the hydrogen cylinder. The gas cylinder horizontal clamping assembly 5 is set entirely within the gap 17, so the structure on both sides of the gap 17 can limit the horizontal clamping slider 13.

[0033] Among them, the horizontal clamping support block 12 is a right-angled triangular slider, and the inclined surfaces of the two right-angled triangular sliders are arranged opposite each other, making the gas cylinder horizontal clamping assembly 5 more suitable for clamping hydrogen cylinders.

[0034] In this embodiment, as Figure 6 As shown, the hydraulic system of the tilting support mechanism is powered by a hydraulic pump station 20. The direction of the output pressure is controlled by an electromagnetic directional valve 19, which controls the extension and retraction of the hydraulic cylinder 6, thereby achieving the tilting of the vehicle-mounted hydrogen cylinder hydrostatic explosion test device. The hydraulically controlled check valve 18 maintains pressure and locks the hydraulic cylinder 6 during its operation, ensuring that the hydraulic cylinder 6 is always stopped at the required position and preventing it from sliding down.

[0035] In this embodiment, as Figure 7 As shown, the clamping mechanism's pneumatic system is powered by an air source 25. A three-position five-way valve 24 controls the direction of the output pressure, thus controlling the extension and retraction of the cylinder 8, thereby clamping and releasing the gas cylinder clamping assembly 4. The induced check valve 22 maintains pressure and locks the cylinder 8 during its movement, ensuring the hydraulic cylinder 6 remains at the desired position and preventing slippage. The speed control valve 23 regulates the airflow into the cylinder 8, thereby adjusting its movement speed.

[0036] Hydrogen energy, with its zero-emission characteristics, is considered the ultimate energy source for automobiles. With the rapid development and industrialization of hydrogen fuel cells and electric vehicles, current automotive hydrogen storage technology relies on high-pressure hydrogen storage cylinders. These cylinders often require explosion tests to verify their safety. The tilting mechanism of the automotive hydrogen cylinder hydrostatic explosion test device is suitable for industries such as automotive, chemical, universities, laboratories, research institutions, government agencies, and aerospace, for production, application, and research of automotive hydrogen cylinders. It enables the hydrogen cylinder to meet the requirements of relevant standards such as GB / T 42612-2023 "Automotive Compressed Hydrogen Plastic Liner Carbon Fiber Fully Wound Cylinder" and GB / T 35544-2017 "Automotive Compressed Hydrogen Aluminum Liner Carbon Fiber Fully Wound Cylinder," and allows the cylinder to tilt when filled with the medium.

[0037] The tilting mechanism of the vehicle hydrogen cylinder hydrostatic burst testing device of this application has improved load-bearing capacity to accommodate larger vehicle hydrogen cylinders. It incorporates a base frame, platform, and hydraulic cylinder 6 connection structure, making the tilting mechanism more robust and able to withstand greater loads. Multiple clamping components are also included to ensure stability and safety during the tilting process when tilting heavier and larger hydrogen cylinders. The new tilting mechanism increases operational flexibility, enabling it to perform tasks that were previously impossible, and can accommodate vehicle hydrogen cylinders with outer diameters of 200–1200 mm and lengths of 300–3500 mm. The equipment adopts semi-automatic control, is easy to operate, and is constructed entirely of steel, making it robust and reliable, suitable for large hydrogen cylinders.

[0038] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A flipping mechanism for a vehicle-mounted hydrogen cylinder hydrostatic explosion test device, characterized in that, The flipping mechanism consists of a support base (1), a support platform (3), a gas cylinder clamping assembly (4), a gas cylinder horizontal clamping assembly (5), and a hydraulic cylinder (6). The support base (1) is connected to the support platform (3) through a rotating shaft (2), and the support base (1) is provided with a slot (11). The support platform (3) is provided with multiple gaps (17). Multiple gas cylinder clamping assemblies (4) are spaced apart on the upper end of the support platform (3). The gas cylinder horizontal clamping assembly (5) is located at the gap (17) of the support platform (3). The gas cylinder is fixed on the support platform (3) through the gas cylinder clamping assembly (4) and the gas cylinder horizontal clamping assembly (5). One end of the hydraulic cylinder (6) is rotatably connected to the support base (1), and the other end is rotatably connected to the side of the support platform (3) away from the slot (11).

2. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 1, characterized in that, A baffle (21) is provided on the side of the support platform (3) facing the slot (11), and a gas cylinder blocking bracket (26) is provided on the baffle (21).

3. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 1, characterized in that, The support platform (3) has slide rails (27) on two opposite sides. The gas cylinder clamping assembly (4) consists of a clamping frame (7), a cylinder (8), a linear shaft (9) and a clamping fixture (10). The two ends of the clamping frame (7) are mounted on the slide rail (27) via sliders (28). The cylinder (8) is located in the middle of the clamping frame (7), and its output end passes through the clamping frame (7) and is connected to the clamping fixture (10). The linear shaft (9) is located on both sides of the cylinder (8) and passes through the clamping frame (7) and is connected to both ends of the clamping fixture (10).

4. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 3, characterized in that, The clamping fixture (10) has a V-shaped structure with an included angle of 90°-170°.

5. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 1, characterized in that, The gas cylinder horizontal clamping assembly (5) consists of a horizontal clamping support block (12), a horizontal clamping slider (13), a screw support seat (14), a horizontal clamping screw (15), and a handwheel (16). The screw support seat (14) is located on both sides of the bottom of the support platform (3). The horizontal clamping screw (15) is rotatably connected to the screw support seat (14), and one end of the horizontal clamping screw (15) is connected to the handwheel (16). The outer surface of the horizontal clamping screw (15) is provided with two sets of threads with opposite directions centered on the center of the support platform (3). Two horizontal clamping sliders (13) are located on the horizontal clamping screw (15), and the horizontal clamping support block (12) is screwed and fixed on the horizontal clamping slider.

6. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 1, characterized in that, The horizontal clamping support block (12) is a right-angled triangular slider, and the inclined surfaces of the two right-angled triangular sliders are arranged opposite each other.

7. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 1, characterized in that, The hydraulic cylinder (6) is connected to the hydraulic pump station (20). The hydraulic pump station (20) controls the direction of the output pressure through the solenoid directional valve (19) to control the extension and retraction of the hydraulic cylinder (6). A hydraulic control check valve (18) is also connected between the solenoid directional valve (19) and the hydraulic cylinder (6).

8. The flipping mechanism of the vehicle hydrogen cylinder water pressure explosion test device according to claim 3, characterized in that, The cylinder (8) is connected to the air source (25). The air source (25) controls the direction of the output pressure through the three-position five-way valve (24) to control the extension and retraction of the cylinder (8). The cylinder (8) and the air source (25) are connected in sequence to the induction check valve (22), the speed control valve (23) and the three-position five-way valve (24).

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