Universe hydrogen cylinder flexible speed impact test bench

Abstract

The invention discloses a universal hydrogen cylinder flexible impact test bench, which belongs to the technical field of impact test devices, and comprises a frame body, a gas cylinder supporting device, a position adjusting mechanism, an impact device, a high-speed camera and a control system, the gas cylinder supporting device is mounted on the frame body; the position adjusting mechanism comprises three position adjusting assemblies distributed at intervals in the circumferential direction. Each position adjusting assembly comprises an adjusting motor, a sliding groove block, a lead screw, a guide rod, a pin shaft, a rocker, a first shaft rod and a second shaft rod. The impact device comprises a hydraulic clamp and an impact head, the second shaft rod is rotationally connected to the hydraulic clamp in the horizontal direction, and the hydraulic clamp can clamp or loosen the impact head; the high-speed camera is slidably arranged on one side of the gas cylinder supporting device in the horizontal direction. And the control system is used for respectively controlling the adjusting motor and the hydraulic clamp. According to the invention, low-speed impact can be accurately applied to various positions of the hydrogen cylinder, and the safety and reliability of the hydrogen cylinder at different impact positions can be effectively evaluated.

Description

Technical Field

[0001] The present invention relates to the technical field of impact test devices, and in particular to a full-range hydrogen cylinder soft-speed impact test bench. Background Art

[0002] As a key container for storing and transporting hydrogen, the safety of hydrogen cylinders is of crucial importance in the current widespread application of hydrogen energy. During the production, transportation, and use of hydrogen cylinders, they may be subjected to various low-speed impacts, such as collisions and drops. Due to the special properties of hydrogen, once a hydrogen cylinder is damaged by impact and hydrogen leaks, it is extremely likely to trigger serious safety accidents such as explosions.

[0003] Currently, most of the existing impact test devices can only perform impact tests on specific positions of hydrogen cylinders, and cannot meet the requirements for comprehensive and accurate impact tests on various positions of hydrogen cylinders, making it difficult to comprehensively evaluate the safety and reliability of hydrogen cylinders under different impact conditions. Summary of the Invention

[0004] The purpose of the present invention is to provide a full-range hydrogen cylinder soft-speed impact test bench to solve the problems existing in the above-mentioned prior art, which can accurately apply low-speed impacts to various positions of hydrogen cylinders and effectively evaluate the safety and reliability of hydrogen cylinders under different impact positions.

[0005] To achieve the above purpose, the present invention provides the following solution:

[0006] The present invention provides a full-range hydrogen cylinder soft-speed impact test bench, including a frame body, a gas cylinder support device, a position adjustment mechanism, an impact device, a high-speed camera, and a control system;

[0007] The gas cylinder support device is installed on the frame body;

[0008] The position adjustment mechanism includes three position adjustment components distributed at intervals along the circumferential direction. The position adjustment component includes an adjustment motor, a chute block, a lead screw, a guide rod, a pin shaft, a rocker, a first shaft rod, and a second shaft rod; the guide rod is fixed on the frame body, the output shaft of the adjustment motor is fixedly connected to the lead screw, the chute block is threadedly connected to the lead screw and slidably arranged on the guide rod, the first shaft rod is rotatably connected to the chute block in the horizontal direction, the second shaft rod is rotatably connected to the impact device in the horizontal direction, the first shaft rod and the second shaft rod are connected by the rocker, and the rocker is rotatably connected to the first shaft rod and the second shaft rod through the pin shaft;

[0009] The impact device includes a hydraulic clamp and an impact head. The second shaft rod is rotatably connected to the hydraulic clamp in the horizontal direction, and the hydraulic clamp can clamp or loosen the impact head;

[0010] The high-speed camera is slidably arranged horizontally on one side of the gas cylinder support device;

[0011] The control system is used to separately control the adjustment motor and the hydraulic fixture.

[0012] In one embodiment, the hydraulic fixture includes a chuck, an electric hydraulic telescopic rod, a push block, a spring, and a hydraulic push rod motor. Three push block chutes are circumferentially arranged at the bottom of the chuck. One electric hydraulic telescopic rod is respectively arranged in each push block chute. The spring is also arranged in each push block chute. One push block is slidably arranged in each push block chute. One end of the push block is connected to the push rod of the electric hydraulic telescopic rod, and the other end is connected to the spring. The hydraulic push rod motor is fixed at the upper end of the chuck and is used to control the telescopic movement of the electric hydraulic telescopic rod.

[0013] In one embodiment, a first guard plate and a second guard plate are fixedly arranged on the frame body. The first guard plate and the second guard plate are respectively arranged on both sides of the frame body. The gas cylinder support device, the position adjustment mechanism, and the impact device are located between the first guard plate and the second guard plate.

[0014] In one embodiment, a V-shaped support groove is arranged on the gas cylinder support device.

[0015] In one embodiment, an anti-slip buffer pad is arranged in the V-shaped support groove.

[0016] In one embodiment, the gas cylinder support device is fixed to the frame body by bolts.

[0017] In one embodiment, the control system includes a control button, and the control button is fixed to the frame body.

[0018] In one embodiment, a force sensor and a displacement sensor are arranged on the impact head, and both the force sensor and the displacement sensor are signal-connected to the control system.

[0019] In one embodiment, the control system further includes a switch button.

[0020] The present invention has achieved the following technical effects compared with the prior art:

[0021] The full-range hydrogen gas cylinder soft-speed impact test bench provided by the present invention can realize the adjustment of different positions and different impact energies through three position adjustment components, making up for the deficiency that most existing impact test devices can only perform impact tests on specific positions of hydrogen gas cylinders. It can accurately apply low-speed impacts at various positions of the hydrogen gas cylinder, and effectively evaluate the safety and reliability of the hydrogen gas cylinder under different impact positions. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is the front view of the structure of the global hydrogen cylinder soft-speed impact test bench in the embodiment of the present invention;

[0024] Figure 2 It is the axonometric view of the structure of the global hydrogen cylinder soft-speed impact test bench in the embodiment of the present invention;

[0025] Figure 3 It is the schematic structural view of the position adjustment mechanism in the embodiment of the present invention;

[0026] Figure 4 It is the bottom view of the structure of the impact mechanism in the embodiment of the present invention;

[0027] Figure 5 It is the front view of the structure of the impact mechanism in the embodiment of the present invention;

[0028] Figure 6 It is the schematic structural view of the impact head in the embodiment of the present invention.

[0029] In the figure: 1 - frame body, 2 - gas cylinder support device, 3 - impact device, 310 - hydraulic fixture, 311 - chuck, 312 - electric hydraulic telescopic rod, 313 - push block, 314 - spring, 315 - hydraulic push rod motor, 316 - push block chute, 320 - impact head, 4 - high-speed camera, 5 - position adjustment assembly, 501 - adjustment motor, 502 - chute block, 503 - lead screw, 504 - guide rod, 505 - pin shaft, 506 - rocker, 507 - first shaft rod, 508 - second shaft rod, 6 - first guard plate, 7 - second guard plate, 8 - control button, 9 - switch button, 10 - hydrogen cylinder. Specific embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] The object of the present invention is to provide a full-range hydrogen cylinder soft-speed impact test bench to solve the problems existing in the prior art, which can accurately apply low-speed impacts at various positions of the hydrogen cylinder and effectively evaluate the safety and reliability of the hydrogen cylinder under different impact positions.

[0032] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] As Figures 1-6 shown, this embodiment provides a full-range hydrogen cylinder soft-speed impact test bench, which includes a frame 1, a gas cylinder support device 2, a position adjustment mechanism, an impact device 3, a high-speed camera 4 and a control system;

[0034] The gas cylinder support device 2 is installed on the frame 1 and is used to support and place the hydrogen cylinder 10;

[0035] The position adjustment mechanism includes three position adjustment components 5 distributed at intervals along the circumferential direction. The position adjustment component 5 includes an adjustment motor 501, a chute block 502, a lead screw 503, a guide rod 504, a pin shaft 505, a rocker 506, a first shaft rod 507 and a second shaft rod 508; the guide rod 504 is fixed on the frame 1, the output shaft of the adjustment motor 501 is fixedly connected with the lead screw 503, the chute block 502 is threadedly connected with the lead screw 503 and slidably arranged on the guide rod 504, the first shaft rod 507 is rotatably connected to the chute block 502 in the horizontal direction, the second shaft rod 508 is rotatably connected to the impact device 3 in the horizontal direction, and the first shaft rod 507 and the second shaft rod 508 are connected by the rocker 506. The rocker 506 is rotatably connected to the first shaft rod 507 and the second shaft rod 508 through the pin shaft 505; both ends of the first shaft rod 507 are respectively connected to a rocker 506, the other ends of the two rockers 506 are respectively connected to both ends of the second shaft rod 508, and the first shaft rod 507, the second shaft rod 508 and the two rockers 506 form a parallelogram structure and can move stably;

[0036] The impact device 3 includes a hydraulic fixture 310 and an impact head 320. The second shaft rod 508 is rotatably connected to the hydraulic fixture 310 in the horizontal direction, and the hydraulic fixture 310 can clamp or loosen the impact head 320;

[0037] The high-speed camera 4 is slidably arranged on one side of the gas cylinder support device 2 in the horizontal direction; the high-speed camera 4 can move left and right to the front of the impact position, and record the entire impact situation before, during and after the impact through the high-speed shooting of the high-speed camera 4;

[0038] The control system is used to control the adjustment motor 501 and the hydraulic fixture 310 respectively.

[0039] The adjustment of different positions and different impact energies can be achieved through three position adjustment components 5. First, by controlling three adjustment motors 501 out of sync, the lead screw 503 is driven to rotate, causing the chute block 502 that cooperates with the lead screw 503 to move up and down, driving the position and angle of the rocker 506 to change, and finally placing the impact device 3 above the impact position. Second, by controlling the three adjustment motors 501 synchronously, moving the same distance up and down simultaneously, the required impact energy adjustment (i.e., the height adjustment of the impact head 320) is achieved. This device makes up for the deficiency that most existing impact test devices can only conduct impact tests on specific positions of the hydrogen cylinder 10, and can accurately apply low-speed impacts at various positions of the hydrogen cylinder 10, effectively evaluating the safety and reliability of the hydrogen cylinder 10 under different impact positions.

[0040] In this embodiment, the hydraulic fixture 310 includes a chuck 311, an electric hydraulic telescopic rod 312, a push block 313, a spring 314, and a hydraulic push rod motor 315. Three push block chutes 316 are provided along the circumference at the bottom of the chuck 311. An electric hydraulic telescopic rod 312 is respectively arranged in each push block chute 316, and a spring 314 is also provided in each push block chute 316. A push block 313 is slidably arranged in each push block chute 316. One end of the push block 313 is connected to the push rod of the electric hydraulic telescopic rod 312, and the other end is connected to the spring 314. The hydraulic push rod motor 315 is fixed at the upper end of the chuck 311 and is used to control the electric hydraulic telescopic rod 312 to achieve telescoping. When clamping the impact head 320, the electric hydraulic telescopic rod 312 is extended through the hydraulic push rod motor 315, and then the push block 313 fixed thereto is pushed to move centripetally to achieve clamping. When releasing the impact head 320, the electric hydraulic telescopic rod 312 is shortened through the hydraulic push rod motor 315, and then the push block 313 fixed thereto is pulled to move centrifugally to achieve release.

[0041] In this embodiment, a first protective plate 6 and a second protective plate 7 are fixedly arranged on the frame 1. The first protective plate 6 and the second protective plate 7 are respectively arranged on both sides of the frame 1. The gas cylinder support device 2, the position adjustment mechanism, and the impact device 3 are located between the first protective plate 6 and the second protective plate 7. The first protective plate 6 and the second protective plate 7 are used to protect the experimental process and avoid the threat to people caused by flying debris that may be generated during the experiment.

[0042] In this embodiment, a V-shaped support groove is provided on the gas cylinder support device 2, and the V-shaped support groove can make the hydrogen cylinder 10 stably in a natural placement state. An anti-slip buffer pad is provided in the V-shaped support groove to prevent the hydrogen cylinder 10 from shifting and being damaged during the impact process. The gas cylinder support device 2 is fixed to the frame 1 through bolts to ensure no oscillation occurs during the impact.

[0043] In this embodiment, the control system includes a control button 8 which is fixed on the frame 1. The adjustment motor 501 and the hydraulic push rod motor 315 can be respectively controlled through the control button 8 to realize the adjustment of the position and the clamping and releasing of the impact head 320.

[0044] In this embodiment, a force measuring sensor and a displacement sensor are provided on the impact head 320, which can accurately capture the force value change, the displacement change of the impact position and the deformation amount of the specimen during the impact instant. Both the force measuring sensor and the displacement sensor are signal-connected to the control system to transmit the measurement data to the control system in real time.

[0045] In this embodiment, the control system further includes a switch button 9 for controlling the on / off of the whole device.

[0046] In the present invention, specific examples are used to illustrate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A full range hydrogen cylinder soft speed impact test bench, characterized by: It includes a frame, a gas cylinder support device, a position adjustment mechanism, an impact device, a high-speed camera and a control system; The gas cylinder supporting device is installed on the frame; The position adjustment mechanism includes three position adjustment components distributed at intervals along the circumferential direction, and the position adjustment components include an adjustment motor, a slide block, a lead screw, a guide rod, a pin shaft, a rocker, a first shaft rod and a second shaft rod; the guide rod is fixed to the frame, the output shaft of the adjustment motor is fixedly connected to the lead screw, the slide block is threadedly connected to the lead screw and slidably arranged on the guide rod, the first shaft rod is rotatably connected to the slide block in the horizontal direction, the second shaft rod is rotatably connected to the impact device in the horizontal direction, the first shaft rod is connected to the second shaft rod through the rocker, and the rocker is rotatably connected to the first shaft rod and the second shaft rod through the pin shaft; The impact device comprises a hydraulic clamp and an impact head, the second shaft is rotatably connected to the hydraulic clamp in a horizontal direction, and the hydraulic clamp can clamp or loosen the impact head; The high-speed camera is slidably arranged on one side of the gas cylinder supporting device in a horizontal direction; The control system is used to control the adjustment motor and the hydraulic clamp separately.

2. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The hydraulic clamp includes a chuck, an electric hydraulic telescopic rod, a push block, a spring and a hydraulic push rod motor. Three push block slide grooves are circumferentially arranged at the bottom of the chuck, and an electric hydraulic telescopic rod is arranged in each push block slide groove. The spring is also arranged in each push block slide groove. A push block is slidably arranged in each push block slide groove. One end of the push block is connected to the push rod of the electric hydraulic telescopic rod, and the other end is connected to the spring. The hydraulic push rod motor is fixed at the upper end of the chuck to control the electric hydraulic telescopic rod to achieve telescopic movement.

3. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized in that: The frame is fixedly provided with a first guard plate and a second guard plate, the first guard plate and the second guard plate are respectively arranged on both sides of the frame, and the gas cylinder supporting device, the position adjustment mechanism and the impact device are located between the first guard plate and the second guard plate.

4. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The gas cylinder supporting device is provided with a V-shaped supporting groove.

5. The full-range hydrogen cylinder soft velocity impact test bench according to claim 4 is characterized in that: An anti-slip buffer pad is arranged in the V-shaped supporting groove.

6. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The gas cylinder supporting device is fixed to the frame by bolts.

7. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The control system comprises a control button, and the control button is fixed on the frame.

8. The full range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The impact head is provided with a force sensor and a displacement sensor, and both the force sensor and the displacement sensor are connected to the control system signal.

9. The full-range hydrogen cylinder soft velocity impact test bench according to claim 1 is characterized by: The control system also includes a switch button.

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