A hydrogen storage cylinder drop test device

Abstract

The present invention relates to the technical field of experimental devices, and specifically to a hydrogen storage gas cylinder drop test device, comprising a base frame, on which a ground simulation system and two symmetrically arranged stacking platforms are respectively installed, gas cylinder bodies are stacked on the stacking platforms, the ground simulation system is used to simulate grounds of different hardness and monitor the drop impact force of the gas cylinder bodies, a liftable top frame is provided above the base frame, a hanger that can move along the longitudinal direction of the top frame is provided on the top frame, and a traction frame that can be displaced along the axis direction of the top frame is provided on one side of the hanger. The beneficial effect of the present invention is that in the present invention, when the gas cylinder body is subjected to a drop test, the angle of the flip frame is adjustable and the clamp arm is used to adjust the orientation of the gas cylinder body, so that the gas cylinder body can finally simulate the positive and negative directions of the three orthogonal axes of the gas cylinder body during the drop test, thereby meeting the different drop angle requirements during the drop simulation of the gas cylinder body.

Description

Technical Field

[0001] The invention relates to the technical field of experimental devices, in particular to a hydrogen storage cylinder drop experimental device. Background Art

[0002] In the development of hydrogen storage technology, the safety performance of hydrogen storage cylinders is crucial. In order to ensure the reliability and safety of hydrogen storage cylinders in various use environments, strict drop tests are required. Traditional drop test devices often have single functions and cannot simulate ground conditions of different hardness, nor can they effectively monitor the impact force during the drop process.

[0003] In the prior art, the patent document with publication number CN114813012B discloses a composite material gas cylinder drop device and method, including a frame, a mobile platform and a multi-angle clamp, wherein the mobile platform is arranged on the frame, and a lifting mechanism is arranged between the mobile platform and the frame, and the lifting mechanism is used to change the height of the mobile platform from the bottom of the frame. The above device can control the initial drop velocity of the gas cylinder so that the energy of the gas cylinder falling to the ground meets the standard requirements, but the above device has the following technical problems when used:

[0004] 1. Existing devices can only simulate a single ground hardness. For example, some devices use an impact surface with a fixed hardness, which cannot meet the testing requirements of different ground conditions;

[0005] 2. Existing hydrogen storage cylinder dropping devices mostly adopt fixed-angle dropping and lack multi-axis flipping, automatic material replacement and multi-sensor data collection functions;

[0006] 3. In terms of experimental data monitoring, existing devices can usually only obtain simple impact force data and lack multi-dimensional monitoring of cylinder damage;

[0007] Based on this, the present invention provides a hydrogen storage cylinder drop test device to solve the problems raised in the above background technology. Summary of the invention

[0008] In view of the technical problems existing in the prior art, the present invention provides a hydrogen storage cylinder drop test device to solve the problem that the existing devices can only simulate a single ground hardness. For example, some devices use an impact surface with a fixed hardness, which cannot meet the testing requirements of different ground conditions. The existing hydrogen storage cylinder drop devices mostly use fixed-angle drop, lack multi-axis flipping, automatic material replacement and multi-sensor data acquisition functions. In terms of experimental data monitoring, the existing devices can usually only obtain simple impact force data and lack multi-dimensional monitoring of cylinder damage.

[0009] The technical solution of the present invention to solve the above technical problems is as follows: a hydrogen storage gas cylinder drop test device, comprising a base frame, on which a ground simulation system and two symmetrically arranged stacking platforms are respectively installed, gas cylinder bodies are stacked on the stacking platforms, the ground simulation system is used to simulate grounds of different hardnesses and monitor the falling impact force of the gas cylinder bodies, a liftable top frame is arranged above the base frame, a hanger that can move along the longitudinal direction of the top frame is arranged on the top frame, a traction frame that can be displaced along the axis direction of the top frame is arranged on one side of the hanger, a movable magnetic lifting ring is arranged on the traction frame, and the base frame A lifting mechanism connected with a magnetic lifting ring is installed between the top frame, a lifting frame is installed on the hanging frame in a liftable manner, a flip frame driven by a flip motor is rotatably installed on the lifting frame, a clamping driving member is installed on the flip frame, and the clamping driving member is transmission-connected to two symmetrically arranged clamping arms, each of the clamping arms is provided with a rotating clamping member for clamping the gas cylinder body and driving the gas cylinder body to rotate, and an electric heating plate for clamping the gas cylinder body, the flip frame can drive the gas cylinder body to flip around three orthogonal axes, and a monitoring module is also provided on the clamping arm for monitoring experimental data of the gas cylinder body.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a scissor-type lifting platform is installed between the base frame and the top frame, a single-chip microcomputer is installed on the base frame, a linear transmission module is installed on the top frame, the linear transmission module is connected to the hanger in terms of transmission, a group of axial push rods are installed between the traction frame and the hanger, a vertically arranged screw lifting module is installed on the hanger, and the screw lifting module is connected to the flip frame in terms of transmission.

[0012] The beneficial effect of adopting the above further scheme is that, when in use, the layout height of the top frame and the drop height of the gas cylinder body during the test are controlled by setting the scissor-type lifting platform. The scissor-type lifting platform is a common mechanism in the prior art and will not be described in detail here.

[0013] By setting the linear transmission module, the position of the hanger on the top frame is changed, and finally the falling position of the gas cylinder body on the ground simulation system is switched;

[0014] During each experiment, the linear drive module automatically switches the position of the hanger on the top frame, thereby avoiding experimental data errors caused by repeated falling positions of the gas cylinder body on the ground simulation system;

[0015] By setting the axial push rod, the position of the traction frame relative to the hanger is changed. By changing the position of the traction frame relative to the hanger, the lifting position of the magnetic lifting ring on the gas cylinder body and the distance of the gas cylinder body relative to the hanger during the test are changed.

[0016] By setting the screw rod lifting module, the layout position of the turning frame relative to the gas cylinder body is changed, and then the clamping and turning position of the gas cylinder body on the turning frame is finally changed.

[0017] Furthermore, the lifting mechanism includes a winding wheel and a square shaft rotatably connected to the base frame, a driving motor is installed on the base frame, the output shaft end of the driving motor is fixedly connected to the square shaft, a square groove with openings at both ends and slidably connected to the square shaft is fixedly opened inside the winding wheel, the cross-sections of the square shaft and the square groove are both regular polygons, a lifting cable is wound on the winding wheel, the other end of the lifting cable is fixedly connected to a magnetic lifting ring, two symmetrically arranged guide clamping wheels are rotatably installed on the top frame and the traction frame, and a guide gap for limiting the lifting cable is fixedly arranged between the two guide clamping wheels.

[0018] The beneficial effect of adopting the above further scheme is that when in use, the gas cylinder body to be tested is hoisted by setting the hoisting mechanism. During hoisting, the magnetic hoisting ring and the gas cylinder body are magnetically attracted to each other, thereby completing the fixation between the hoisting cable and the gas cylinder body. When the gas cylinder body is hoisted, the gas cylinder body is clamped by two rotating clamps. Before the drop test, the hoisting cable is pre-released to a set length, and the released length of the hoisting cable is 1.5 times the drop test height of the gas cylinder body. After the drop test, the hoisting cable is pulled by the reel to achieve automatic resetting of the gas cylinder body after the drop test. After the gas cylinder body is automatically reset, the two rotating clamps re-clamp the gas cylinder body, thereby facilitating rapid repeated testing of the gas cylinder body.

[0019] Furthermore, a guide arc groove is provided on the lifting frame, the flip frame is slidably connected to the guide arc groove, and a first belt is installed for transmission between the flip motor and the flip frame.

[0020] The beneficial effect of adopting the above further solution is that the maximum turning angle and turning path of the turning frame are limited by setting the guide arc groove.

[0021] Furthermore, the clamping drive component includes a clamping screw rotatably mounted on a flip frame, a motor is mounted on the side of the flip frame, an output shaft end of the motor is fixedly connected to the clamping screw, a positive thread portion and a negative thread portion are respectively provided on the clamping screw, and the positive thread portion and the negative thread portion are respectively connected to the two clamping arms in a transmission manner.

[0022] The beneficial effect of adopting the above further scheme is that when in use, the distance between the two clamping arms is quickly adjusted through the setting of the motor and the clamping screw, and the distance between the two clamping arms is changed, and then the clamping state of the gas cylinder body by the two rotating clamping parts is quickly changed. When the gas cylinder body falls, the clamping drive part instantly adjusts the distance between the two clamping arms to the maximum and loses the clamping state of the gas cylinder body, so that the gas cylinder body is affected by gravity and falls freely at a set angle, thereby performing a fall simulation.

[0023] Furthermore, the rotating clamping member includes two clamping rollers and a transmission guide wheel rotatably connected to the clamping arm, a worm gear motor is installed on the clamping arm, the output shaft end of the worm gear motor is transmission-connected to a second belt, and the two clamping rollers and the transmission guide wheel are both transmission-connected to the second belt.

[0024] The beneficial effect of adopting the above further scheme is that when the gas cylinder body is subjected to a drop test, the angle of the flip frame is adjustable and the clamp arm is used to adjust the orientation of the gas cylinder body, so that the gas cylinder body can ultimately simulate the positive and negative directions of the three orthogonal axes of the gas cylinder body during the drop test, thereby meeting the different drop angle requirements of the gas cylinder body during the drop simulation.

[0025] Furthermore, the ground simulation system includes two rollers rotatably connected to a base frame, two servo motors are installed on the base frame, the output shaft ends of the two servo motors are fixedly connected to the two rollers respectively, a carrier belt is wound between the two rollers, a group of regularly distributed pads are installed on the carrier belt, and the hardness coefficient of each pad is different. An impact platform is arranged on the inner side of the carrier belt, and a plurality of pressure sensors are installed between the impact platform and the base frame, and the data end of each pressure sensor is connected to the data of the single-chip computer.

[0026] The beneficial effect of adopting the above further solution is that before the drop test, according to the test conditions, firstly, a pad with a specified hardness coefficient is moved to the bottom of the gas cylinder body to be tested, and before the drop test, the gas cylinder body is fully relaxed by setting two servo motors;

[0027] When the gas cylinder body falls, it collides with a pad with a specified hardness coefficient, and then the drop test data of the gas cylinder body on pads with different hardness coefficients can be tested;

[0028] When the gas cylinder body falls, the impact force of the gas cylinder body on the impact platform is monitored through the data feedback of the pressure sensor, and then the experimental data of the gas cylinder body under different drop heights and different hardness coefficient pad conditions are monitored.

[0029] Furthermore, the material stacking platform includes a material stacking table, a guide frame slidably connected to the material stacking table is fixedly mounted on the base frame, a shift push rod is installed between the guide frame and the material stacking table, and a group of regularly distributed brackets for supporting the gas cylinder body are installed on the material stacking table.

[0030] The beneficial effect of adopting the above-mentioned further scheme is that during the experiment, the two rotating clamps can clamp the gas cylinder body to be tested on the stacking table. After the two rotating clamps clamp the gas cylinder body, they are hoisted via the magnetic lifting ring. Through the above-mentioned technical effect arrangement, the experimental device can realize repeated clamping of the gas cylinder body and repeated experiments on the replacement of the gas cylinder body. By realizing the effect of rapid repeated clamping of the gas cylinder body and repeated experiments on the replacement of the gas cylinder body, the functionality of the experimental device is effectively guaranteed and the device can quickly measure multiple sets of data, thereby effectively improving the experimental accuracy of the experimental data of the device.

[0031] Furthermore, the monitoring module includes an audio acquisition sensor and a first image acquisition sensor installed on the base frame, and an infrared temperature probe, a second image acquisition sensor and an infrared flaw detector are respectively installed on the flip frame, and the data ends of the audio acquisition sensor, the first image acquisition sensor, the infrared temperature probe, the second image acquisition sensor and the infrared flaw detector are all connected to the microcontroller data.

[0032] The beneficial effect of adopting the above further scheme is that, by setting up an audio collection sensor, the audio generated when the gas cylinder body falls is monitored, and by collecting the audio when the gas cylinder body falls, the damage and abnormal working condition of the gas cylinder body after falling are monitored through sound characteristics;

[0033] By setting the first image acquisition sensor, a high-frame image of the gas cylinder body when it falls is obtained, and then the collision angle and damage position of the gas cylinder body when it falls can be determined through the image recognition algorithm;

[0034] By setting up an infrared temperature probe, the surface temperature data of the gas cylinder before it falls can be obtained;

[0035] By setting the second image acquisition sensor, the surface images of the gas cylinder body before and after the experiment are obtained, and the damage caused to the gas cylinder body by the experimental parameters is obtained by comparing the images before and after the experiment.

[0036] By setting up an infrared flaw detector, the internal damage conditions of the gas cylinder before and after the test are obtained. By comparing the damage conditions before and after the test, the damage conditions of the gas cylinder caused by the experimental parameters are obtained.

[0037] The beneficial effects of the present invention are:

[0038] 1) In the present invention, when the gas cylinder body is subjected to a drop test, the angle of the flip frame is adjustable and the clamp arm is used to adjust the position of the gas cylinder body, so that the gas cylinder body can simulate the positive and negative directions of the three orthogonal axes of the gas cylinder body during the drop test, thereby meeting the different drop angle requirements of the gas cylinder body during the drop simulation.

[0039] 2) In the present invention, before the drop test, according to the experimental conditions, firstly, a pad with a specified hardness coefficient is moved to the bottom of the gas cylinder body to be tested, and before the drop test, the carrier belt of the gas cylinder body is fully relaxed by setting two servo motors. When the gas cylinder body falls, it collides with the pad with the specified hardness coefficient, and then the drop test data of the gas cylinder body on the pads with different hardness coefficients can be tested. When the gas cylinder body falls, the impact force of the gas cylinder body on the impact table is monitored through the data feedback of the pressure sensor, and then the experimental data of the gas cylinder body under the conditions of different drop heights and pads with different hardness coefficients are monitored.

[0040] 3) During the experiment of the present invention, two rotating clamps can be used on the stacking table to clamp the gas cylinder body to be tested. After the two rotating clamps clamp the gas cylinder body, they are hoisted via the magnetic lifting ring. Through the above-mentioned technical effect arrangement, the experimental device can realize repeated clamping of the gas cylinder body and repeated experiments on the replacement of the gas cylinder body. By realizing the effect of rapid repeated clamping of the gas cylinder body and repeated experiments on the replacement of the gas cylinder body, the functionality of the experimental device is effectively guaranteed and the device can quickly measure multiple sets of data, thereby effectively improving the experimental accuracy of the experimental data of the device.

[0041] 4) In the present invention, by setting an audio acquisition sensor, the audio generated when the gas cylinder body falls is monitored. By collecting the audio when the gas cylinder body falls, the damage and abnormal working conditions of the gas cylinder body after falling are monitored through sound characteristics. By setting a first image acquisition sensor, a high-frame image of the gas cylinder body when it falls is obtained, and then the collision angle and damage position of the gas cylinder body when it falls can be judged through an image recognition algorithm. By setting an infrared temperature probe, the surface temperature data of the gas cylinder body before falling is obtained. By setting a second image acquisition sensor, the surface images of the gas cylinder body before and after the experiment are obtained. By comparing the images before and after the experiment of the gas cylinder body, the damage caused to the gas cylinder body by the experimental parameters is obtained. By setting an infrared flaw detector, the internal damage of the gas cylinder body before and after the experiment of the gas cylinder body is obtained. By comparing the injuries before and after the experiment of the gas cylinder body, the damage caused to the gas cylinder body by the experimental parameters is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of a hydrogen storage cylinder drop test device of the present invention;

[0043] Figure 2 It is a structural schematic diagram of the gas cylinder body and the scissor-type lifting platform of the present invention;

[0044] Figure 3 It is a structural schematic diagram of the linear transmission module and the turning frame of the present invention;

[0045] Figure 4 It is a structural schematic diagram of the magnetic lifting ring and the screw rod lifting module of the present invention;

[0046] Figure 5 It is a structural schematic diagram of the guide clamping wheel and the traction frame of the present invention;

[0047] Figure 6 It is a structural schematic diagram of the bracket and the displacement push rod of the present invention;

[0048] Figure 7 It is a schematic diagram of the structure of the turning motor and the clamping roller of the present invention;

[0049] Figure 8 It is a schematic structural diagram of the transmission guide wheel and the clamping arm of the present invention.

[0050] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0051] 1. Base frame; 2. Cylinder body; 3. Top frame; 4. Hanger; 5. Traction frame; 6. Magnetic lifting ring; 7. Lifting frame; 8. Turning motor; 9. Turning frame; 10. Clamping drive; 11. Clamping arm; 12. Electric heating plate; 13. Scissor lifting platform; 14. Single chip microcomputer; 15. Linear transmission module; 16. Axial push rod; 17. Screw lifting module; 18. Reel; 19. Square shaft; 20. Lifting cable; 21. Guide clamping wheel; 22 , guide arc groove; 23, clamping roller; 24, transmission guide wheel; 25, worm gear motor; 26, winding roller; 27, carrier belt; 28, cushion block; 29, impact table; 30, pressure sensor; 31, coding table; 32, guide frame; 33, shift push rod; 34, bracket; 35, audio acquisition sensor; 36, first image acquisition sensor; 37, infrared temperature probe; 38, second image acquisition sensor; 39, infrared flaw detector. DETAILED DESCRIPTION

[0052] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0053] The present invention provides the following preferred embodiments:

[0054] like Figure 1-8As shown, a hydrogen storage gas cylinder drop test device comprises a base frame 1, on which a ground simulation system and two symmetrically arranged stacking platforms are respectively installed, on which gas cylinder bodies 2 are stacked, and the ground simulation system is used to simulate grounds of different hardness and monitor the drop impact force of the gas cylinder bodies 2;

[0055] The ground simulation system includes two rollers 26 rotatably connected to the base frame 1. Two servo motors are installed on the base frame 1. The output shaft ends of the two servo motors are fixedly connected to the two rollers 26 respectively. A carrier belt 27 is wound between the two rollers 26. A group of regularly distributed pads 28 are installed on the carrier belt 27. The hardness coefficient of each pad 28 is different. An impact table 29 is arranged on the inner side of the carrier belt 27. A plurality of pressure sensors 30 are installed between the impact table 29 and the base frame 1. The data end of each pressure sensor 30 is connected to the data of the single-chip computer 14.

[0056] Before the drop test, according to the test conditions, a pad 28 with a specified hardness coefficient is first moved to the bottom of the gas cylinder body 2 to be tested, and before the drop test, the gas cylinder body 2 is fully relaxed by setting two servo motors;

[0057] When the gas cylinder body 2 falls, it collides with the cushion block 28 with a specified hardness coefficient, and then the drop test data of the gas cylinder body 2 on the cushion block 28 with different hardness coefficients can be tested;

[0058] When the gas cylinder body 2 falls, the impact force of the gas cylinder body 2 on the impact platform 29 is monitored via data feedback from the pressure sensor 30 , and then the experimental data of the gas cylinder body 2 under the conditions of different falling heights and different hardness coefficient pads 28 are monitored.

[0059] The material stacking platform includes a material stacking table 31, a guide frame 32 slidably connected to the material stacking table 31 is fixedly mounted on the base frame 1, a shift push rod 33 is installed between the guide frame 32 and the material stacking table 31, and a group of regularly distributed brackets 34 for supporting the gas cylinder body 2 are installed on the material stacking table 31.

[0060] During the experiment, two rotating clamps can clamp the gas cylinder body 2 to be tested on the material stacking table 31. After the two rotating clamps clamp the gas cylinder body 2, they are hoisted via the magnetic lifting ring 6. Through the above-mentioned technical effect arrangement, the experimental device can realize repeated clamping of the gas cylinder body 2 and repeated experiments on the replacement of the gas cylinder body 2. By realizing the effect of rapid repeated clamping and repeated experiments on the replacement of the gas cylinder body 2, the functionality of the experimental device is effectively guaranteed and the device can quickly measure multiple sets of data, thereby effectively improving the experimental accuracy of the experimental data of the device.

[0061] A liftable top frame 3 is provided above the bottom frame 1;

[0062] A scissor-type lifting platform 13 is installed between the bottom frame 1 and the top frame 3, and a single-chip computer 14 is installed on the bottom frame 1;

[0063] The top frame 3 is provided with a hanger 4 which can move along the longitudinal direction of the top frame 3;

[0064] A linear transmission module 15 is installed on the top frame 3, and the linear transmission module 15 is transmission-connected with the hanger 4;

[0065] A traction frame 5 is provided on one side of the hanger 4 and can be displaced along the axis direction of the top frame 3;

[0066] A set of axial push rods 16 are installed between the traction frame 5 and the hanger 4;

[0067] When in use, the scissor-type lifting platform 13 is set to control the layout height of the top frame 3 and the drop height of the gas cylinder body 2 during the experiment. The scissor-type lifting platform 13 is a common mechanism in the prior art and will not be described here;

[0068] By setting the linear transmission module 15, the position of the hanger 4 on the top frame 3 is changed, and finally the falling position of the gas cylinder body 2 on the ground simulation system is switched;

[0069] During each experiment, the linear transmission module 15 automatically switches the position of the hanger 4 on the top frame 3, thereby avoiding experimental data errors caused by repeated falling positions of the gas cylinder body 2 on the ground simulation system;

[0070] By setting the axial push rod 16, the position of the traction frame 5 relative to the hanger 4 is changed. By changing the position of the traction frame 5 relative to the hanger 4, the hanging position of the magnetic hanging ring 6 on the gas cylinder body 2 and the distance of the gas cylinder body 2 relative to the hanger 4 during the experiment are changed.

[0071] A movable magnetic lifting ring 6 is provided on the traction frame 5, and a lifting mechanism connected to the magnetic lifting ring 6 is installed between the bottom frame 1 and the top frame 3;

[0072] As an implementation mode, the lifting mechanism includes a reel 18 and a square shaft 19 rotatably connected to the base frame 1. A driving motor is installed on the base frame 1, and the output shaft end of the driving motor is fixedly connected to the square shaft 19. The interior of the reel 18 is fixedly provided with a square groove with openings at both ends and slidably connected to the square shaft 19. The cross-sections of the square shaft 19 and the square groove are both regular polygons. A lifting cable 20 is wound on the reel 18, and the other end of the lifting cable 20 is fixedly connected to the magnetic lifting ring 6. Two symmetrically arranged guide clamping wheels 21 are rotatably installed on the top frame 3 and the traction frame 5, and a guide gap for limiting the lifting cable 20 is fixedly arranged between the two guide clamping wheels 21.

[0073] When in use, the gas cylinder body 2 to be tested is hoisted by setting the hoisting mechanism. During hoisting, the magnetic hoisting ring 6 and the gas cylinder body 2 are magnetically attracted to form a whole, thereby completing the fixation between the hoisting cable 20 and the gas cylinder body 2. When the gas cylinder body 2 is hoisted, the gas cylinder body 2 is clamped by two rotating clamps. Before the drop test, the hoisting cable 20 is pre-released to a set length, and the released length of the hoisting cable 20 is 1.5 times the drop test height of the gas cylinder body 2. After the drop test, the hoisting cable 20 is pulled by the reel 18, thereby realizing the automatic reset of the gas cylinder body 2 after the drop test. After the gas cylinder body 2 is automatically reset, the two rotating clamps re-clamp the gas cylinder body 2, thereby facilitating the rapid repetitive test of the gas cylinder body 2.

[0074] A lifting frame 7 is installed on the hanger 4 so as to be liftable;

[0075] A vertically arranged screw lifting module 17 is installed on the hanger 4 , and the screw lifting module 17 is transmission-connected with the turning frame 9 .

[0076] By setting the screw lifting module 17, the layout position of the flip frame 9 relative to the gas cylinder body 2 is changed, and then the clamping flip position of the flip frame 9 on the gas cylinder body 2 is finally changed;

[0077] A turning frame 9 driven by a turning motor 8 is rotatably mounted on the lifting frame 7;

[0078] A guide arc groove 22 is provided on the lifting frame 7 , the turning frame 9 is slidably connected to the guide arc groove 22 , and a first belt is installed between the turning motor 8 and the turning frame 9 for transmission.

[0079] By setting the guide arc groove 22, the maximum turning angle and turning path of the turning frame 9 are limited.

[0080] A clamping drive member 10 is installed on the turning frame 9 , and the clamping drive member 10 is transmission-connected to two symmetrically arranged clamping arms 11 .

[0081] As an embodiment, the clamping drive 10 includes a clamping screw rotatably mounted on the flip frame 9, a motor is installed on the side of the flip frame 9, the output shaft end of the motor is fixedly connected to the clamping screw, and a positive thread portion and a negative thread portion are respectively provided on the clamping screw, and the positive thread portion and the negative thread portion are respectively connected to the two clamping arms 11 in transmission.

[0082] When in use, the distance between the two clamping arms 11 is quickly adjusted by setting the motor and the clamping screw rod. By changing the distance between the two clamping arms 11, the clamping state of the gas cylinder body 2 by the two rotating clamping members is quickly changed. When the gas cylinder body 2 falls, the clamping driving member 10 instantly adjusts the distance between the two clamping arms 11 to the maximum and loses the clamping state of the gas cylinder body 2, so that the gas cylinder body 2 is subjected to gravity and falls freely at a set angle, thereby performing a fall simulation;

[0083] Each clamp arm 11 is provided with a rotating clamping member for clamping the gas cylinder body 2 and driving the gas cylinder body 2 to rotate, and an electric heating plate 12 for clamping the gas cylinder body 2. The flip frame 9 can drive the gas cylinder body 2 to flip around three orthogonal axes. A monitoring module is also provided on the clamp arm 11 for monitoring experimental data of the gas cylinder body 2.

[0084] The rotating clamping member includes two clamping rollers 23 and a transmission guide wheel 24 which are rotatably connected to the clamping arm 11. A worm gear motor 25 is installed on the clamping arm 11. The output shaft end of the worm gear motor 25 is transmission-connected to a second belt. The two clamping rollers 23 and the transmission guide wheel 24 are both transmission-connected to the second belt.

[0085] When the gas cylinder body 2 is subjected to a drop test, the angle of the flip frame 9 is adjustable and the clamp arm 11 is used to adjust the orientation of the gas cylinder body 2, so that the gas cylinder body 2 can simulate the positive and negative directions of the three orthogonal axes of the gas cylinder body 2 during the drop test, thereby meeting the different drop angle requirements of the gas cylinder body 2 during the drop simulation.

[0086] As an implementation mode, the monitoring module includes an audio acquisition sensor 35 and a first image acquisition sensor 36 installed on the base frame 1, and an infrared temperature probe 37, a second image acquisition sensor 38 and an infrared flaw detector 39 are respectively installed on the flip frame 9, and the data ends of the audio acquisition sensor 35, the first image acquisition sensor 36, the infrared temperature probe 37, the second image acquisition sensor 38 and the infrared flaw detector 39 are all connected to the data of the single-chip computer 14.

[0087] By setting the audio collection sensor 35, the audio generated when the gas cylinder body 2 falls is monitored, and the damage and abnormal working condition of the gas cylinder body 2 after falling are monitored through the sound characteristics by collecting the audio when the gas cylinder body 2 falls;

[0088] By setting the first image acquisition sensor 36, a high-frame image of the gas cylinder body 2 when it falls is obtained, and then the collision angle and damage position of the gas cylinder body 2 when it falls can be determined by an image recognition algorithm;

[0089] By setting the infrared temperature probe 37, the surface temperature data of the gas cylinder body 2 before falling is obtained;

[0090] By setting the second image acquisition sensor 38, the surface images of the gas cylinder body 2 before and after the experiment are obtained, and the damage caused to the gas cylinder body 2 by the experimental parameters is obtained by comparing the images of the gas cylinder body 2 before and after the experiment.

[0091] By setting up the infrared flaw detector 39, the internal damage of the gas cylinder body 2 before and after the experiment is obtained, and by comparing the damage before and after the experiment of the gas cylinder body 2, the damage caused by the experimental parameters to the gas cylinder body 2 is obtained.

[0092] The audio acquisition sensor 35, the first image acquisition sensor 36, the infrared temperature probe 37, the second image acquisition sensor 38, the infrared flaw detector 39 and the single chip computer 14 can all be customized or selected according to actual needs.

[0093] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0094] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydrogen storage cylinder drop test device, comprising a base frame (1), characterized in that: The base frame (1) is respectively provided with a ground simulation system and two symmetrically arranged stacking platforms, on which gas cylinder bodies (2) are stacked, the ground simulation system is used to simulate ground surfaces of different hardness and monitor the impact force of the gas cylinder bodies (2) when they fall, a liftable top frame (3) is provided above the base frame (1), a hanger (4) movable along the longitudinal direction of the top frame (3) is provided on the top frame (3), a traction frame (5) movable along the axial direction of the top frame (3) is provided on one side of the hanger (4), a movable magnetic lifting ring (6) is provided on the traction frame (5), a lifting mechanism connected to the magnetic lifting ring (6) is installed between the base frame (1) and the top frame (3), and the hanger ( 4) is provided with a lifting frame (7) which can be lifted and lowered, a turning frame (9) driven by a turning motor (8) is rotatably provided on the lifting frame (7), a clamping driving member (10) is provided on the turning frame (9), and two symmetrically arranged clamping arms (11) are connected to the clamping driving member (10) in a driving manner, each of the clamping arms (11) is provided with a rotating clamping member for clamping the gas cylinder body (2) and driving the gas cylinder body (2) to rotate, and an electric heating plate (12) for clamping the gas cylinder body (2), the turning frame (9) can drive the gas cylinder body (2) to turn around three orthogonal axes, and a monitoring module is also provided on the clamping arm (11) for monitoring experimental data of the gas cylinder body (2); The lifting frame (7) is provided with a guide arc groove (22), the turning frame (9) is slidably connected to the guide arc groove (22), and a first belt is installed between the turning motor (8) and the turning frame (9) for transmission; The ground simulation system comprises two rollers (26) rotatably connected to a base frame (1), the base frame (1) being mounted with two servo motors, the output shaft ends of the two servo motors being fixedly connected to the two rollers (26) respectively, a carrier belt (27) being wound between the two rollers (26), a group of regularly distributed pads (28) being mounted on the carrier belt (27), each pad having a different hardness coefficient, an impact table (29) being arranged on the inner side of the carrier belt (27), a plurality of pressure sensors (30) being mounted between the impact table (29) and the base frame (1), the data end of each of the pressure sensors (30) being connected to the data of a single-chip computer (14).

2. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: A scissor-type lifting platform (13) is installed between the bottom frame (1) and the top frame (3), a single-chip computer (14) is installed on the bottom frame (1), a linear transmission module (15) is installed on the top frame (3), the linear transmission module (15) is in driving connection with the hanger (4), a group of axial push rods (16) is installed between the traction frame (5) and the hanger (4), a vertically arranged screw lifting module (17) is installed on the hanger (4), and the screw lifting module (17) is in driving connection with the flip frame (9).

3. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: The hoisting mechanism comprises a reel (18) and a square shaft (19) rotatably connected to a base frame (1); a driving motor is mounted on the base frame (1); an output shaft end of the driving motor is fixedly connected to the square shaft (19); a square groove with two ends opened and slidably connected to the square shaft (19) is fixedly provided inside the reel (18); the cross-sections of the square shaft (19) and the square groove are both regular polygons; a suspension cable (20) is wound around the reel (18); the other end of the suspension cable (20) is fixedly connected to a magnetic lifting ring (6); two symmetrically arranged guide clamping wheels (21) are rotatably mounted on the top frame (3) and the traction frame (5); a guide slit for limiting the position of the suspension cable (20) is fixedly arranged between the two guide clamping wheels (21).

4. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: The clamping drive member (10) comprises a clamping screw which is rotatably mounted on a turning frame (9), a motor being mounted on a side of the turning frame (9), an output shaft end of the motor being fixedly connected to the clamping screw, a positive thread portion and a negative thread portion being respectively provided on the clamping screw, and the positive thread portion and the negative thread portion being respectively transmission-connected to two clamping arms (11).

5. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: The rotary clamping member comprises two clamping rollers (23) rotatably connected to the clamping arm (11) and a transmission guide wheel (24); a worm gear motor (25) is mounted on the clamping arm (11); an output shaft end of the worm gear motor (25) is transmission-connected to a second belt; the two clamping rollers (23) and the transmission guide wheel (24) are both transmission-connected to the second belt.

6. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: The material stacking platform comprises a material stacking table (31), a guide frame (32) slidably connected to the material stacking table (31) is fixedly mounted on the base frame (1), a displacement push rod (33) is mounted between the guide frame (32) and the material stacking table (31), and a group of regularly distributed brackets (34) for supporting the gas cylinder body (2) are mounted on the material stacking table (31).

7. A hydrogen storage cylinder drop test device according to claim 1, characterized in that: The monitoring module comprises an audio acquisition sensor (35) and a first image acquisition sensor (36) mounted on a base frame (1); an infrared temperature probe (37), a second image acquisition sensor (38) and an infrared flaw detector (39) are respectively mounted on the flip frame (9); and data ends of the audio acquisition sensor (35), the first image acquisition sensor (36), the infrared temperature probe (37), the second image acquisition sensor (38) and the infrared flaw detector (39) are all data-connected to the single-chip computer (14).

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