Bidirectional deep-sea collision test device for large horizontal pressure cylinders

Abstract

The present invention relates to a bidirectional deep-sea collision test device for a large horizontal pressure cylinder, comprising a horizontally arranged pressure cylinder, the bidirectional deep-sea collision test device comprising a support frame, a pendulum assembly being installed at the front of the inner top surface of the support frame, a pressure-resistant electromagnetic suction assembly being installed on the support frame located behind the pendulum assembly, the pressure-resistant electromagnetic suction assembly adsorbing a heavy ball at the end of the pendulum assembly when energized, and releasing the heavy ball when the pressure-resistant electromagnetic suction assembly loses power, causing the pendulum assembly to swing forward; a movable seat is mounted on the top surface of the support frame for movement along the front-to-back direction, a boom is arranged on the movable seat and extends upward and obliquely toward the front, another set of pressure-resistant electromagnetic suction assemblies is hung at the end of the boom, a drop hammer being adsorbed on the bottom surface of the pressure-resistant electromagnetic suction assembly; a test model is mounted at the front of the inner bottom surface of the pressure cylinder via a fixed seat, the test model being located in front of the pendulum assembly and below the drop hammer at the same time, thereby enabling a bidirectional collision test to be performed on the test model under hydrostatic pressure in the pressure cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure collision testing, in particular to a bidirectional deep-sea collision testing device for a large horizontal pressure cylinder. Background Art

[0002] Due to the harsh ocean environment, underwater collisions between vehicles occur frequently. Compared to surface ships, underwater vehicles have less reserve buoyancy. When they encounter an underwater collision, the combined effects of deepwater pressure and impact loads are more likely to cause structural damage, threatening the lives of crew members and potentially leading to secondary disasters.

[0003] In the existing technology, due to the limitations of test facilities and test costs, the research on structural collision problems in deep-sea high-pressure environments mainly relies on numerical simulation methods. The research progress found in the literature has stopped at software simulation and lacks the necessary experimental research and verification.

[0004] Major domestic research institutions have built a variety of deep-sea environment simulation devices, or pressure cylinders, in various sizes and types. Pressure cylinders are categorized as vertical or horizontal based on their installation layout, but their primary testing scope is hydrostatic pressure testing. Summary of the Invention

[0005] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a rationally structured bidirectional deep-sea collision test device for large horizontal pressure cylinders, which can perform bidirectional collision tests on test models under hydrostatic pressure conditions inside the pressure cylinder, providing an extremely powerful test verification means for the navigation safety of underwater vehicles.

[0006] The technical solutions adopted in the present invention are as follows:

[0007] A bidirectional deep-sea collision test device for a large horizontal pressure cylinder, comprising a horizontally arranged pressure cylinder, the bidirectional deep-sea collision test device comprising a support frame, a pendulum assembly being mounted on the front of the top surface of the support frame, a pressure-resistant electromagnetic suction assembly being mounted on the support frame located behind the pendulum assembly, the pressure-resistant electromagnetic suction assembly attracting a heavy ball at the end of the pendulum assembly when energized, and releasing the heavy ball when the pressure-resistant electromagnetic suction assembly loses power, causing the pendulum assembly to swing forward; a movable seat being mounted on the top surface of the support frame for movement in a front-to-rear direction, a boom being tilted and extending upward from the movable seat toward the front, another set of pressure-resistant electromagnetic suction assemblies being mounted on the end of the boom, and a drop weight being attracted to the bottom surface of the pressure-resistant electromagnetic suction assembly;

[0008] A test model is installed in front of the inner bottom surface of the pressure cylinder via a fixing seat. The test model is located in front of the pendulum assembly and below the drop hammer.

[0009] As a further improvement of the above technical solution:

[0010] The structure of the support frame is as follows: it includes a base, and a front frame and a rear frame are respectively installed on the front and rear ends of the top surface of the base, and the front frame and the rear frame are connected and fixed to form an integrated frame via a crossbeam; a pendulum rod is installed on the top of the front frame, which is rotated downward, and a heavy ball is fixed on the end of the pendulum rod to form a pendulum assembly; a pressure-resistant electromagnetic suction assembly is also installed on the top of the integrated frame located behind the pendulum rod.

[0011] The rocker arm is a telescopic rigid rod, which is connected to the crossbeam at the middle of the top surface of the front frame and the rear frame and is provided with multiple hanging holes spaced along the length direction. The corresponding pressure-resistant electromagnetic suction component is hung in one of the hanging holes through a hand hoist, and the height of the pressure-resistant electromagnetic suction component is adjusted by the hand hoist.

[0012] The front frame and the rear frame are annular structures of the same size and arranged at intervals in the front and rear directions. A plurality of limit assemblies are installed on the front frame and the rear frame at intervals along the circumferential direction, and the ends of the limit assemblies are all against the inner wall surface of the pressure cylinder.

[0013] The top surface of the crossbeam connected to the middle of the top surface of the front frame and the rear frame is provided with a groove along the length direction to form a track for the moving seat to move. The bottom surface of the moving seat is equipped with running wheels that move along the track; the rear end of the top surface of the moving seat is obliquely extended with an armrest.

[0014] A fixing frame extends downward from the middle of the top surface of the front frame, and a horizontal axis with an axial direction running left and right is provided at the bottom end of the fixing frame, and the horizontal axis is rotatably mounted on the top end of the rocker arm; a receiving groove is provided at the top of the rocker arm, and a locking piece is installed on the fixing frame located inside the receiving groove via a pin shaft, and the swing of the rocker arm drives the locking piece to passively swing in the opposite direction, and is stuck between the locking piece and the edge of the receiving groove.

[0015] The accommodating groove is an arc-shaped structure, including an outer convex arc structure formed by connecting an outer convex arc surface 1 and an outer convex arc surface 2, and an inner concave arc structure formed by an inner concave arc surface 1 and an inner concave arc surface 2. The gap between the outer convex arc structure and the inner concave arc structure constitutes a space for accommodating the locking member; the outer convex arc surface 1, the outer convex arc surface 2 and the inner concave arc surface 2 are all concentrically arranged relative to the horizontal axis, the radius of the outer convex arc surface 1 is greater than the radius of the outer convex arc surface 2, and the step where the outer convex arc surface 1 and the outer convex arc surface 2 are connected constitutes a stop; the opposite ends of the inner concave arc surface 1 and the inner concave arc surface 2 constitute end head 1 and end head 2 respectively, the inner concave arc surface 1 is eccentrically arranged compared to the horizontal axis, the distance between the end head 1 of the inner concave arc surface 1 and the horizontal axis is greater than the radius of the inner concave arc surface 2, and the distance between the inner concave arc surface 1 away from the end head and the horizontal axis is less than the radius of the inner concave arc surface 2.

[0016] The locking member is a long strip structure, and the two end portions in the length direction extend inward to form an inner concave bayonet, and the spacing distance between the second inner concave arc surface and the second outer convex arc surface is greater than the width dimension of the locking member.

[0017] The structure of the pressure-resistant electromagnetic suction component is as follows: it includes a pressure-resistant tank body with an opening facing upward, an electromagnetic suction cup is accommodated inside the pressure-resistant tank body, and the electromagnetic suction cup is connected to a power supply via a cable. The electromagnetic suction cup generates magnetic force when it is energized, and the magnetic force disappears when it is de-energized; the upper open end of the pressure-resistant tank body is sealed with a flange end cover via a flange structure to form a closed container, and a watertight joint for the cable to pass out is installed on the flange end cover; a magnetic suction plate is fixedly installed on the bottom surface of the pressure-resistant tank body via a grid member, and a limit plate is installed on the bottom surface of the magnetic suction plate; a plurality of limit plates are arranged at intervals along the circumference, and the inner side surfaces of a single limit plate are all set to an inclined structure, and the inner sides of multiple limit plates together form a conical structure with an opening facing downward.

[0018] The end of the boom is mounted with a pressure-resistant electromagnetic suction component via a lifting and hoisting component, and the structure of the lifting and hoisting component is as follows: it includes a first wheel and a second wheel respectively installed at both ends of the boom, a flexible transmission member is installed between the first wheel and the second wheel to form power transmission, the first wheel located at the movable seat is driven to rotate via a handle, and a lifting cable is installed below the second wheel via a lifting wheel; one end of the lifting cable is fixed to the boom, and the other end of the lifting cable is installed on a shaft coaxially arranged with the second wheel, and the height of the lifting wheel below is adjusted as the lifting cable is installed or released on the shaft; a hook is connected to the bottom of the lifting wheel, and a corresponding pressure-resistant electromagnetic suction component is mounted below the hook.

[0019] The beneficial effects of the present invention are as follows:

[0020] The present invention has a compact and reasonable structure and is easy to operate. Through the power-off separation function, it realizes the horizontal and vertical combined deep-sea collision test in the horizontal pressure cylinder. The pendulum assembly and the drop weight can be adjusted to simulate collision tests with different load sizes. This effectively expands the test items that can be carried out in the pressure cylinder and greatly improves the flexibility of the pressure cylinder. It greatly contributes to the study of the structural response of underwater engineering structures under the impact of heavy balls and provides a very powerful test verification method for the navigation safety of underwater vehicles.

[0021] The present invention also includes the following advantages:

[0022] A locking part is provided in the pendulum assembly, so that the pendulum rod in the pendulum assembly can only swing once and is locked when swinging back, effectively avoiding the structural response caused by secondary lateral collision and the resulting data noise, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the state during the test of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the bidirectional deep-sea collision test device of the present invention.

[0025] Figure 3Schematic diagram of the installation of the pendulum assembly on the front frame of the present invention.

[0026] Figure 4 This is a schematic diagram of the installation of the pressure-resistant electromagnetic suction component on the rear frame of the present invention.

[0027] Figure 5 Schematic diagram of the structure of the pendulum assembly of the present invention.

[0028] Figure 6 It is a schematic diagram of the swing rod and the locking member of the present invention when they are swinging.

[0029] Figure 7 It is a schematic diagram of the state of the swing rod and the locking member of the present invention when they are swung into place.

[0030] Figure 8 It is a schematic diagram of the state of the rocker arm and the locking member when swinging back.

[0031] Figure 9 Schematic diagram of the present invention when the rocker arm and the locking member are locked.

[0032] Figure 10 It is a cross-sectional view of the rocker arm of the present invention.

[0033] Figure 11 It is a structural schematic diagram of the pressure-resistant electromagnetic suction component of the present invention.

[0034] Figure 12 The figure is a schematic diagram of the installation of the lifting and hoisting assembly on the boom of the present invention.

[0035] Including: 1. Pressure cylinder; 2. Support frame; 3. Pressure-resistant electromagnetic suction assembly; 4. Pendulum assembly; 5. Moving seat; 6. Hanging arm; 7. Drop hammer; 8. Lifting and hoisting assembly; 9. Limit assembly; 10. Test model; 11. Sensor assembly;

[0036] 20. Moving wheel; 21. Front frame; 22. Crossbeam; 23. Rear frame; 24. Counterweight; 25. Base; 26. Hand chain hoist; 221. Mounting hole;

[0037] 30. Ring rib; 31. Watertight joint; 32. Lifting lug; 33. Flange end cover; 34. Seal; 35. Pressure tank; 36. Electromagnetic suction cup; 37. Grille; 38. Magnetic plate; 39. Limit plate;

[0038] 40. Fixing bracket; 41. Rocker; 42. Locking member; 43. Receiving slot; 44. Horizontal axis; 45. Pin; 46. Weighted ball; 410. Pointed portion; 421. Inwardly concave bayonet; 431. Outwardly convex arc surface 1; 432. Stopper; 433. Inwardly concave arc surface 1; 434. Endpiece 1; 435. Outwardly convex arc surface 2; 436. Endpiece 2; 437. Inwardly concave arc surface 2;

[0039] 50. Track; 51. Handrail; 52. Travel wheel;

[0040] 71. Safety rope;

[0041] 81. Rotor 1; 82. Flexible transmission member; 83. Rotor 2; 84. Lifting cable; 85. Lifting wheel; 86. Hook;

[0042] 91. Pressing portion; 92. Screw; 93. Limiting seat; 94. Force-applying portion. DETAILED DESCRIPTION

[0043] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0044] like Figure 1 As shown, the bidirectional deep-sea collision test device for a large horizontal pressure cylinder of this embodiment includes a horizontally arranged pressure cylinder 1, and the bidirectional deep-sea collision test device includes a support frame 2. A pendulum assembly 4 is installed on the front of the top surface of the support frame 2. A pressure-resistant electromagnetic suction assembly 3 is installed on the support frame 2 located behind the pendulum assembly 4. When the pressure-resistant electromagnetic suction assembly 3 is energized, it attracts a heavy ball 46 at the end of the pendulum assembly 4. When the pressure-resistant electromagnetic suction assembly 3 is de-energized, it releases the heavy ball 46, causing the pendulum assembly 4 to swing forward. A movable seat 5 is mounted on the top surface of the support frame 2 so as to move in the front-to-back direction. A boom 6 extends upward and tilted forward from the movable seat 5. Another set of pressure-resistant electromagnetic suction assemblies 3 is hung on the end of the boom 6. A drop weight 7 is attracted to the bottom surface of the pressure-resistant electromagnetic suction assembly 3.

[0045] A test model 10 is installed in front of the inner bottom surface of the pressure cylinder 1 via a fixing seat. The test model 10 is located in front of the pendulum assembly 4 and below the drop weight 7.

[0046] Through the power-off separation function of the pressure-resistant electromagnetic suction component 3, a horizontal and vertical combined deep-sea collision test is realized in the horizontal pressure cylinder 1, and the pendulum component 4 and the drop weight 7 can be adjusted to simulate collision tests of different load sizes, effectively expanding the test items that can be carried out in the pressure cylinder 1.

[0047] When hydrostatic pressure is loaded, the heavy ball 46 at the end of the pendulum assembly 4 swings backward and upward and is attracted by the pressure-resistant electromagnetic suction assembly 3 in the energized state. After power is lost, the heavy ball 46 swings forward and hits the test model 10 in front to perform a lateral collision test. Similarly, when pure water pressure is loaded, the drop hammer 7 is attracted by the corresponding pressure-resistant electromagnetic suction assembly 3. After power is lost, the drop hammer 7 falls freely downward and hits the test model 10 below to perform a vertical collision test. This realizes a two-way combined test of the test model 10 under hydrostatic pressure.

[0048] like Figure 2 、 Figure 3 and Figure 4As shown, the structure of the support frame 2 is as follows: it includes a base 25, and the front frame 21 and the rear frame 23 are respectively installed on the front and rear ends of the top surface of the base 25, and the front frame 21 and the rear frame 23 are connected and fixed to form an integrated frame via a crossbeam 22; a pendulum rod 41 is installed on the top of the front frame 21 so as to rotate downward, and a heavy ball 46 is fixed on the end of the pendulum rod 41 to form a pendulum assembly 4; a pressure-resistant electromagnetic suction assembly 3 is also installed on the top of the integrated frame behind the pendulum rod 41.

[0049] The pendulum rod 41 is a telescopic rigid rod, which is connected to the crossbeam 22 at the middle of the top surface of the front frame 21 and the rear frame 23, and is provided with multiple hanging holes 221 spaced apart along the length direction. The corresponding pressure-resistant electromagnetic suction component 3 is hung in one of the hanging holes 221 through the hand hoist 26. By setting up multiple hanging holes 221 on the crossbeam 22, the distance between the pressure-resistant electromagnetic suction component 3 and the pendulum component 4 in the front and rear directions can be conveniently adjusted; the height of the pressure-resistant electromagnetic suction component 3 is adjusted by the hand hoist 26.

[0050] The setting of the hand hoist 26, on the one hand, facilitates the hanging and adjustment of the pressure-resistant electromagnetic suction component 3 relative to the support frame 2, and on the other hand, can also realize the rapid adjustment of the height of the pressure-resistant electromagnetic suction component 3; the hand hoist 26 is a purchased standard product, and is a manual lifting machinery that is simple to use and easy to carry; an upper hook is provided on the top of the hand hoist 26, and a lower hook is provided at the bottom of the hand hoist 26, and a lifting ear 32 extends upward from the top of the pressure-resistant electromagnetic suction component 3, and a hanging cable is passed through each lifting ear 32 and wrapped around it, and the hanging cable is hung on the lower hook above.

[0051] By adjusting the length of the telescopic rigid rod and adjusting the mounting position and height of the pressure-resistant electromagnetic suction component 3 on the beam 22, the pendulum angle and length can be flexibly adjusted to simulate collision tests under different loads.

[0052] like Figure 5 As shown, the structure of the telescopic rigid rod is as follows: it includes an outer tube and an inner tube that are inserted into each other along the length direction, and the ends of the outer tube and the inner tube that are inserted into each other are provided with multiple holes spaced along the length direction, and the individual holes are arranged through along the diameter direction; one of the holes on the outer tube is axially consistent with one of the holes on the inner tube and a pin is inserted into the same; the overall length of the telescopic rigid rod is adjusted by adjusting the insertion distance between the outer tube and the inner tube in the length direction, and the outer tube and the inner tube are relatively fixed after adjustment by the insertion of the pin, which makes the adjustment convenient, reliable and practical.

[0053] The front frame 21 and the rear frame 23 are annular structures of the same size and arranged at intervals in the front and rear directions. A plurality of limit assemblies 9 are installed on the front frame 21 and the rear frame 23 at intervals along the circumferential direction, and the ends of the limit assemblies 9 are all against the inner wall surface of the pressure cylinder 1.

[0054] A moving wheel 20 is installed at the bottom of the base 25, and the base 25 is supported in the pressure cylinder 1 via the moving wheel 20; the integrated frame is arranged concentrically relative to the pressure cylinder 1, and the integrated frame is limited and fixed relative to the pressure cylinder 1 via the limiting components 9 arranged at intervals in the circumferential direction, so that the position of the collision test device relative to the pressure cylinder 1 is relatively fixed, which effectively ensures the smooth and smooth progress of the collision test and ensures the reliability of the test.

[0055] The structure of the limiting assembly 9 is as follows: it includes a limiting seat 93 that penetrates the front frame 21 or the rear frame 23 inside and outside along the thickness direction, the screw 92 penetrates the limiting seat 93 and is screwed together, the end of the screw 92 located on the inner side of the limiting seat 93 is fixedly provided with a force-applying portion 94, and the end of the screw 92 located on the outer side of the limiting seat 93 is fixedly provided with a pressing portion 91, the outer end of the pressing portion 91 is set to an outward convex arc surface structure, and the outward convex arc surface structure is against the inner wall surface of the pressure cylinder 1; force is applied to the force-applying portion 94, so that the screw 92 rotates relative to the limiting seat 93, thereby adjusting the position of the screw 92 in the length direction relative to the limiting seat 93, and adjusting the pressing state of the pressing portion 91 at the end of the screw 92 relative to the inner wall surface of the pressure cylinder 1; a through hole can be opened on the force-applying portion 94, the through hole is perpendicular to the length direction of the screw 92, an external tool passes through the through hole on the force-applying portion 94, and the screw 92 is driven to rotate by the external tool, thereby realizing the pressure adjustment of the limiting assembly 9, which is convenient to use.

[0056] The top surface of the crossbeam 22 connected to the middle of the top surface of the front frame 21 and the rear frame 23 is provided with a groove along the length direction to form a track 50 for the moving seat 5 to move. The bottom surface of the moving seat 5 is equipped with running wheels 52 that move along the track 50; the rear end of the top surface of the moving seat 5 is obliquely extended upward with an armrest 51.

[0057] A fixing frame 40 extends downward from the middle of the inner top surface of the front frame 21, and a horizontal axis 44 with an axial direction of left and right is provided at the bottom end of the fixing frame 40. The horizontal axis 44 is rotatably mounted on the top of the rocker arm 41; a receiving groove 43 is provided at the top of the rocker arm 41, and a locking member 42 is installed on the fixing frame 40 located inside the receiving groove 43 via a pin shaft 45. The swing of the rocker arm 41 drives the locking member 42 to passively swing in the opposite direction, and is stuck between the locking member 42 and the edge of the receiving groove 43.

[0058] In this embodiment, the horizontal axis 44 and the rocker arm 41 can be rotatably mounted via bearings, thereby effectively ensuring the smoothness and reliability of the forward swing of the heavy ball 46 relative to the front frame 21 during the collision test, and the rocker arm 41 effectively ensures the swing trajectory of the heavy ball 46.

[0059] A locking member 42 is provided in the pendulum assembly 4, so that the pendulum rod 41 in the pendulum assembly 4 can only swing once and is locked when swinging back, effectively avoiding the structural response caused by the secondary lateral collision and the resulting data noise, and has good practicality.

[0060] like Figure 6 As shown, the receiving groove 43 is an arc-shaped structure, including an outer convex arc structure formed by connecting the outer convex arc surface 1 431 and the outer convex arc surface 2 435, and an inner concave arc structure formed by the inner concave arc surface 1 433 and the inner concave arc surface 2 437. The interval between the outer convex arc structure and the inner concave arc structure constitutes a space for accommodating the locking member 42; the outer convex arc surface 1 431, the outer convex arc surface 2 435 and the inner concave arc surface 2 437 are all concentrically arranged relative to the horizontal axis 44, the radius of the outer convex arc surface 1 431 is larger than the radius of the outer convex arc surface 2 435, and the outer convex arc surface 1 431 and the outer convex arc surface 433 are connected to each other. The steps where the arc surface 2 435 is connected constitute the stop 432; the opposite ends of the inner concave arc surface 1 433 and the inner concave arc surface 2 437 constitute the end head 1 434 and the end head 2 436 respectively. The inner concave arc surface 1 433 is eccentrically arranged compared to the horizontal axis 44. The distance between the end head 1 434 of the inner concave arc surface 1 433 and the horizontal axis 44 is greater than the radius of the inner concave arc surface 2 437. The distance between the inner concave arc surface 1 433 away from the end head 1 434 and the horizontal axis 44 is less than the radius of the inner concave arc surface 2 437. In other words, the inner concave arc surface 1 433 is formed as follows due to the eccentric arrangement. Figure 6 As shown in the gradually thickening wall, when the locking member 42 is located at the concave arc surface 1 433 , the locking member 42 will be squeezed by the wall of the concave arc surface 1 433 and passively rotated.

[0061] The locking member 42 is an elongated structure, with both ends in the length direction extending inward to form an inner concave bayonet 421 . The distance between the second inner concave arc surface 437 and the second outer convex arc surface 435 is greater than the width of the locking member 42 .

[0062] Before the test, the heavy ball 46 at the end of the pendulum rod 41 is attracted by the pressure-resistant electromagnetic suction component 3 at the rear, and the locking member 42 in the receiving groove 43 is moved. Figure 6 As shown in , the locking member 42 is located at the second concave arc surface 437 , and the locking member 42 is rotated so that its direction conforms to the second concave arc surface 437 .

[0063] like Figure 7 As shown, the pressure-resistant electromagnetic suction assembly 3 loses power, the heavy ball 46 swings downward with the pendulum 41 as the radius, and the receiving groove 43 at the end of the pendulum 41 swings relative to the locking member 42. In the figure, the clockwise direction is the swing direction of the pendulum 41. When the concave arc surface 433 on the receiving groove 43 approaches and contacts the locking member 42, due to the eccentric setting of the concave arc surface 433, the distance between its wall surface and the swing center of the pendulum 41 gradually decreases, thereby applying pressure to the locking member 42 through the wall surface, causing the locking member 42 to passively rotate counterclockwise.

[0064] like Figure 8As shown, when the heavy ball 46 swings back after impact, the pendulum rod 41 and the heavy ball 46 swing back synchronously. As shown in the figure, in the counterclockwise direction, the end 436 at the second concave arc surface 437 approaches and contacts the concave latch 421 on the outer end of the locking member 42, applying force, causing the locking member 42 to further passively rotate counterclockwise. Due to the rotation limit of the locking member 42, the heavy ball 46 is restricted as the pendulum rod 41 continues to swing back in this direction.

[0065] like Figure 9 As shown, when the heavy ball 46 and the rocker arm 41 swing down clockwise for the second time, the concave snap-in 421 at the inner end of the locking member 42 will be close to and fit with the stop 432 at the end of the convex arc surface 431, and apply force, so that the locking member 42 continues to passively rotate counterclockwise until the two ends of the locking member 42 are in contact with the stop 432 and the end 434 respectively, and the second swing down of the heavy ball 46 and the rocker arm 41 is restricted.

[0066] The setting of the locking member 42 in the receiving groove 43 effectively limits the secondary swing of the pendulum rod 41 relative to the fixed frame 40, that is, realizes a single impact of the heavy ball 46; at the same time, the swing angle and swing range of the pendulum rod 41 and the heavy ball 46 can also be limited by setting the length of the receiving groove 43, which effectively contributes to the reliability of the test.

[0067] like Figure 10 As shown, the cross section of the rocker 41 is a teardrop-shaped structure, with the pointed end 410 facing forward, thereby effectively reducing the swing resistance of the heavy ball 46 under high-pressure still water, reducing the flow resistance, and improving the hydrodynamic performance.

[0068] like Figure 11 As shown, the structure of the pressure-resistant electromagnetic suction component 3 is as follows: it includes a pressure-resistant tank body 35 with an opening facing upward, an electromagnetic suction cup 36 is housed inside the pressure-resistant tank body 35, and the electromagnetic suction cup 36 is connected to the power supply via a cable. When the electromagnetic suction cup 36 is energized, a magnetic force is generated, and when the power is lost, the magnetic force disappears; the upper open end of the pressure-resistant tank body 35 is sealed with a flange end cover 33 via a flange structure to form a closed container, and a watertight joint 31 for the cable to pass out is installed on the flange end cover 33; the bottom surface of the pressure-resistant tank body 35 is fixedly mounted with a magnetic suction plate 38 via a grid member 37, and the bottom surface of the magnetic suction plate 38 The limiting plates 39 are installed, and the grid members 37 can be a crisscross reinforcing rib structure for strengthening the overall structure; a plurality of limiting plates 39 are arranged at intervals along the circumference, and the inner side surfaces of a single limiting plate 39 are all set as a slope structure, and the inner sides of the plurality of limiting plates 39 together constitute a conical structure with the opening facing downward, and the heavy ball 46 is in contact with the inner side surface of the conical structure; thereby, through the arrangement of the plurality of limiting plates 39, the heavy ball 46 is jointly limited to the center position of the bottom surface of the pressure-resistant electromagnetic suction component 3, and the shaking of the heavy ball 46 is effectively prevented, thereby effectively ensuring the smooth progress of the test.

[0069] The flange edge of the flange end cover 33 fits into the flange structure on the top of the pressure-resistant tank body 35 and is fixed to each other via fasteners, making the pressure-resistant electromagnetic suction assembly 3 easy to disassemble and maintain; a seal 34 is pressed between the joint surface of the flange end cover 33 and the pressure-resistant tank body 35, and the seal 34 is arranged circumferentially around the opening of the pressure-resistant tank body 35 to achieve a sealed fit between the two; the pressure-resistant tank body 35 is a cylindrical container with an opening facing upward, and annular ribs 30 are circumferentially provided on the outer wall surface of the pressure-resistant tank body 35, and multiple groups of annular ribs 30 are arranged at intervals along the axial direction of the pressure-resistant tank body 35.

[0070] The pressure-resistant electromagnetic suction component 3 is reusable and durable, and can be quickly disassembled and assembled for maintenance, which is very practical.

[0071] The end of the boom 6 is mounted with the pressure-resistant electromagnetic suction component 3 via the lifting and hoisting component 8. Figure 12 As shown, the structure of the lifting and hoisting assembly 8 is as follows: it includes a rotating wheel 1 81 and a rotating wheel 2 83 respectively installed at the two ends of the boom 6, a flexible transmission member 82 is installed between the rotating wheel 1 81 and the rotating wheel 2 83 to form power transmission, the rotating wheel 1 81 located at the movable seat 5 is rotated by the handle, and a lifting cable 84 is installed below the rotating wheel 2 83 via a lifting wheel 85; one end of the lifting cable 84 is fixed to the boom 6, and the other end of the lifting cable 84 is installed on a shaft coaxially arranged with the rotating wheel 2 83, and as the lifting cable 84 is installed or released on the shaft, the height of the lifting wheel 85 below is adjusted; a hook 86 is connected to the bottom of the lifting wheel 85, and the corresponding pressure-resistant electromagnetic suction assembly 3 is hung below the hook 86.

[0072] In this embodiment, the drop hammer 7 is also a spherical structure, which is adsorbed to the bottom surface when the corresponding pressure-resistant electromagnetic suction component 3 is energized. A safety rope 71 is also connected between the drop hammer 7 and the boom 6. The safety rope 71 is provided to prevent the drop hammer 7 from causing impact on the pressure cylinder 1 when it falls.

[0073] The use of the present invention is as follows:

[0074] Place a counterweight 24 behind the support frame 2, install the test model 10 inside the pressure cylinder 1, push the movable seat 5 so that the boom 6 is above the predetermined vertical collision position of the test model 10, and adjust the height of the pressure-resistant electromagnetic suction assembly 3 at the end of the boom 6. Similarly, adjust the position and height of the pressure-resistant electromagnetic suction assembly 3 on the support frame 2, and adjust the height and weight of the heavy ball 46 in the pendulum assembly 4 so that the heavy ball 46 swings down and strikes the predetermined lateral collision position of the test model 10.

[0075] A slave sensor assembly 11, such as a strain sensor, a displacement sensor, etc., is arranged on the test model 10; the corresponding cables of the sensor assembly 11 and the pressure-resistant electromagnetic suction assembly 3 are led out of the pressure cylinder 1 and connected to the corresponding strain tester and power supply; of course, for the support frame 2 and the drop weight 7 and the pendulum assembly 4 thereon, the drop weight 7 and the pendulum assembly 4 can be tested separately, and then the entire collision test device can be installed in the horizontal pressure cylinder, the moving wheel 20 is locked with a bevel, the limit assembly 9 is fitted with the inner wall of the pressure cylinder 1 to limit the position, and then the position relationship relative to the test model 10 is further adjusted to facilitate actual operation;

[0076] Turn on the power supply, and the drop hammer 7 and the heavy ball 46 are respectively adsorbed on the corresponding pressure-resistant electromagnetic suction components 3. The height of the drop hammer 7 can be adjusted by the lifting and hoisting component 8;

[0077] Install the cylinder cover of the pressure cylinder 1 to seal it, and apply hydrostatic pressure until the hydrostatic pressure in the pressure cylinder 1 reaches the target pressure;

[0078] If the power switch of the pressure-resistant electromagnetic suction assembly 3 corresponding to the pendulum assembly 4 is turned off, as the magnetic force on the electromagnetic suction cup 36 in the pressure-resistant electromagnetic suction assembly 3 disappears, the heavy ball 46 swings with the bearing as the center and the pendulum rod 41 as the radius, and hits the preset position on the front test model 10, causing the test model 10 to have a lateral impact structural response. The structural strain of the collision is measured by the strain sensor, and the structural deformation of the collision is measured by the displacement sensor. In addition, the pendulum rod 41 in the pendulum assembly 4 is gradually locked by the locking member 42 after one swing, completing a single lateral impact test on the test model 10.

[0079] If the power switch of the pressure-resistant electromagnetic suction component 3 corresponding to the drop hammer 7 is turned off, the magnetic force on the pressure-resistant electromagnetic suction component 3 disappears, and the drop hammer 7 falls and hits the preset position of the test model 10 below, causing the test model 10 to respond to the vertical impact structure. The sensor component 11 measures the structural strain and deformation of the collision.

[0080] Completed lateral and vertical bidirectional collision tests in a high-pressure hydrostatic environment.

[0081] The present invention effectively expands the test items that can be carried out by the pressure cylinder, greatly improves the flexibility of the use of the pressure cylinder, greatly helps the study of the structural response of underwater engineering structures under the impact of heavy balls, and provides an extremely powerful test verification means for the navigation safety of underwater vehicles.

[0082] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A bidirectional deep-sea collision test device for a large horizontal pressure cylinder, comprising a horizontally arranged pressure cylinder (1), characterized in that: The bidirectional deep-sea collision test device comprises a support frame (2), a pendulum assembly (4) is installed at the front of the top surface of the support frame (2), a pressure-resistant electromagnetic suction assembly (3) is installed on the support frame (2) located behind the pendulum assembly (4), and when the pressure-resistant electromagnetic suction assembly (3) is energized, it adsorbs a heavy ball (46) at the end of the pendulum assembly (4), and when the pressure-resistant electromagnetic suction assembly (3) is de-energized, it releases the heavy ball (46), and the pendulum assembly (4) swings forward; a movable seat (5) is mounted on the top surface of the support frame (2) so as to move along the front-back direction, and a suspension arm (6) is extended upward and tilted toward the front on the suspension arm (6), and another set of pressure-resistant electromagnetic suction assemblies (3) is hung at the end of the suspension arm (6), and a drop hammer (7) is adsorbed on the bottom surface of the pressure-resistant electromagnetic suction assembly (3); A test model (10) is installed in front of the inner bottom surface of the pressure cylinder (1) via a fixed seat. The test model (10) is located in front of the pendulum assembly (4) and below the drop hammer (7).

2. The bidirectional deep-sea collision test device for a large horizontal pressure cylinder according to claim 1, characterized in that: The support frame (2) has the following structure: it includes a base (25), a front frame (21) and a rear frame (23) are respectively installed at the front and rear ends of the top surface of the base (25), and the front frame (21) and the rear frame (23) are connected and fixed to form an integrated frame via a crossbeam (22); a pendulum rod (41) is installed on the top of the front frame (21) so as to rotate downward, and a heavy ball (46) is fixed at the end of the pendulum rod (41) to form a pendulum assembly (4); and a pressure-resistant electromagnetic suction assembly (3) is also installed on the top of the integrated frame located behind the pendulum rod (41).

3. The bidirectional deep-sea collision test device for a large horizontal pressure vessel according to claim 2, characterized in that: The swing rod (41) is a telescopic rigid rod, connected to a crossbeam (22) at the middle of the top surface of the front frame (21) and the rear frame (23), and is provided with a plurality of hanging holes (221) spaced apart along the length direction. A corresponding pressure-resistant electromagnetic suction component (3) is hung in one of the hanging holes (221) via a hand chain hoist (26), and the height of the pressure-resistant electromagnetic suction component (3) is adjusted by the hand chain hoist (26).

4. The bidirectional deep-sea collision test device for a large horizontal pressure vessel according to claim 2, characterized in that: The front frame (21) and the rear frame (23) are annular structures of the same size and arranged at intervals in the front and rear directions. A plurality of limiting assemblies (9) are respectively installed on the front frame (21) and the rear frame (23) at intervals along the circumferential direction, and the ends of the limiting assemblies (9) are all against the inner wall surface of the pressure cylinder (1).

5. The bidirectional deep-sea collision test device for a large horizontal pressure tank according to claim 2, characterized in that: A groove is provided on the top surface of a crossbeam (22) connected to the middle of the top surface of the front frame (21) and the rear frame (23) along the length direction to form a track (50) for the movable seat (5) to move. The bottom surface of the movable seat (5) is equipped with running wheels (52) that move along the track (50); and a handrail (51) is extended obliquely upward from the rear end of the top surface of the movable seat (5).

6. The bidirectional deep-sea collision test device for a large horizontal pressure vessel according to claim 2, characterized in that: A fixing frame (40) extends downward from the middle of the inner top surface of the front frame (21), and a horizontal axis (44) with an axial direction of left and right is provided at the bottom end of the fixing frame (40), and the horizontal axis (44) is rotatably mounted on the top end of the swing rod (41); a receiving groove (43) is provided at the top of the swing rod (41), and a locking member (42) is installed on the fixing frame (40) located inside the receiving groove (43) via a pin shaft (45), and the swing of the swing rod (41) drives the locking member (42) to passively swing in the opposite direction, and the locking member (42) is locked with the edge of the receiving groove (43).

7. The bidirectional deep-sea collision test device for a large horizontal pressure tank according to claim 6, characterized in that: The receiving groove (43) is an arc-shaped structure, including an outer convex arc structure formed by connecting an outer convex arc surface 1 (431) and an outer convex arc surface 2 (435), and an inner concave arc structure formed by an inner concave arc surface 1 (433) and an inner concave arc surface 2 (437). The interval between the outer convex arc structure and the inner concave arc structure constitutes a space for accommodating the locking member (42); the outer convex arc surface 1 (431), the outer convex arc surface 2 (435) and the inner concave arc surface 2 (437) are all concentrically arranged relative to the horizontal axis (44), the radius of the outer convex arc surface 1 (431) is larger than the radius of the outer convex arc surface 2 (435), and the outer convex arc surface 1 is larger than the radius of the outer convex arc surface 2 (435). The step connecting (431) and the outer convex arc surface 2 (435) constitutes a stop (432); the opposite ends of the inner concave arc surface 1 (433) and the inner concave arc surface 2 (437) respectively constitute the end head 1 (434) and the end head 2 (436), the inner concave arc surface 1 (433) is eccentrically arranged compared to the horizontal axis (44), the distance between the end head 1 (434) of the inner concave arc surface 1 (433) and the horizontal axis (44) is greater than the radius size of the inner concave arc surface 2 (437), and the distance between the inner concave arc surface 1 (433) away from the end head 1 (434) and the horizontal axis (44) is less than the radius size of the inner concave arc surface 2 (437).

8. The bidirectional deep-sea collision test device for a large horizontal pressure vessel according to claim 7, characterized in that: The locking member (42) is a long strip structure, and the two end portions in the length direction extend inward to form an inner concave bayonet (421), and the spacing between the second inner concave arc surface (437) and the second outer convex arc surface (435) is greater than the width dimension of the locking member (42).

9. The bidirectional deep-sea collision test device for a large horizontal pressure tank according to claim 1, characterized in that: The structure of the pressure-resistant electromagnetic suction component (3) is as follows: it includes a pressure-resistant tank body (35) with an opening facing upward, an electromagnetic suction cup (36) is accommodated inside the pressure-resistant tank body (35), and the electromagnetic suction cup (36) is connected to a power supply via a cable. When the electromagnetic suction cup (36) is energized, a magnetic force is generated, and when the power is lost, the magnetic force disappears; the upper open end of the pressure-resistant tank body (35) is sealed with a flange end cover (33) via a flange structure to form a closed container, and a watertight joint (31) for the cable to pass out is installed on the flange end cover (33); a magnetic suction plate (38) is fixedly installed on the bottom surface of the pressure-resistant tank body (35) via a grid member (37), and a limit plate (39) is installed on the bottom surface of the magnetic suction plate (38); a plurality of limit plates (39) are arranged at intervals along the circumference, and the inner side surface of each limit plate (39) is set as an inclined structure, and the inner sides of the plurality of limit plates (39) together form a conical structure with an opening facing downward.

10. The bidirectional deep-sea collision test device for a large horizontal pressure tank according to claim 1, characterized in that: The end of the boom (6) is mounted with a pressure-resistant electromagnetic suction component (3) via a lifting and hoisting assembly (8). The structure of the lifting and hoisting assembly (8) is as follows: it comprises a first rotating wheel (81) and a second rotating wheel (83) respectively mounted on the two ends of the boom (6); a flexible transmission member (82) is wound between the first rotating wheel (81) and the second rotating wheel (83) to form power transmission; the first rotating wheel (81) located at the movable seat (5) is driven to rotate via a handle; a lifting cable (84) is wound around the lower portion of the second rotating wheel (83) via a lifting wheel (85); one end of the lifting cable (84) is fixed to the boom (6), and the other end of the lifting cable (84) is wound around a shaft coaxially arranged with the second rotating wheel (83); as the lifting cable (84) is wound around or released on the shaft, the height of the lower lifting wheel (85) is adjusted; a hook (86) is connected to the bottom of the lifting wheel (85), and a corresponding pressure-resistant electromagnetic suction component (3) is hung below the hook (86).

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