A tension test device for a corner fitting of a corner post of a tank container

Abstract

The application discloses a tank container corner column corner piece tension test device, which is applied to the technical field of tank container corner column corner piece tension test and comprises a rack, a transmission mechanism, two groups of clamps, a supporting mechanism, a detection mechanism, an adjusting mechanism and a corner column corner piece. The supporting mechanism comprises a base, a second motor, a moving seat, a lifting seat and a supporting assembly, the supporting assembly comprises a supporting box, a box cover, two groups of supporting seats and two groups of connecting ports, the adjusting mechanism comprises a pull-out plate, three groups of stands and three groups of fan wheels, the bottom of the supporting box is provided with a pull-out groove, the pull-out plate is located in the pull-out groove, two groups of limiting blocks are fixedly connected in the supporting box, the pull-out plate is in sliding connection with the supporting box, three groups of the stands are fixed to the top of the pull-out plate, and three groups of the fan wheels are in bearing connection with the side portions of the stands, respectively. The application can simplify the test process of the tank container corner column corner piece during tension test, and improve the accuracy of tension test results.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile testing of corner posts and corner fittings of tank containers, and in particular to a tensile testing device for corner posts and corner fittings of tank containers. Background Art

[0002] Tank containers are internationally recognized as the safest means of transporting chemicals and foods. They offer direct interchange between road, rail, and water transport, truly enabling "door-to-door" transportation. They place the tank within an external container frame, facilitating lifting and stacking. Therefore, corner posts and fittings are the primary load-bearing components of a tank container, and their stability under load directly impacts the safety of the tank container.

[0003] Existing tensile testing equipment for tank container corner posts and fittings uses a hydraulic cylinder to directly stretch the fittings, observing their deformation and determining their tensile strength. However, this tensile testing method suffers from poor stability and inaccurate test results, resulting in significant variations in the behavior of the fittings under corresponding tensile forces. Furthermore, the tensile strength of the fittings is also affected by the local environment. When environmental adjustments are required, the fittings must be manually transported and subjected to varying environmental conditions, making this method highly inconvenient.

[0004] Therefore, it is necessary to provide a tank container corner column and corner fitting tensile testing device to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a tensile testing device for corner posts and fittings of tank containers, which can simplify the testing process when conducting tensile tests on corner posts and fittings of tank containers, improve the accuracy of the tensile test results, and solve the problems raised in the above-mentioned background technology.

[0006] To solve the above technical problems, the present invention provides the following technical solution: a tank container corner post and corner fitting tensile testing device, comprising a frame, a transmission mechanism, two sets of clamps, a support mechanism, a detection mechanism, an adjustment mechanism, and a corner post and corner fitting, wherein the transmission mechanism and the detection mechanism are disposed on the top of the frame, the two sets of clamps are disposed on the transmission mechanism, the support mechanism is disposed on the bottom of the frame, the adjustment mechanism is disposed on the support mechanism, and the corner post and corner fitting is disposed on the top of the support mechanism;

[0007] The support mechanism includes a base, a second motor, a moving seat, a lifting seat and a support assembly, and the support assembly includes a support box, a box cover, two sets of support seats and two sets of connection ports;

[0008] The adjusting mechanism comprises a pull-out plate, three sets of stand columns and three sets of fan wheels, the bottom of the supporting box is provided with a pull-out slot, the pull-out slot penetrates through one side of the supporting box, the pull-out plate is located inside the pull-out slot, two sets of limiting blocks are fixedly connected inside the supporting box, the pull-out plate is in sliding connection with the supporting box, three sets of the stand columns are fixed to the top of the pull-out plate, and three sets of the fan wheels are in bearing connection with the side of the stand columns respectively.

[0009] According to the technical scheme, the transmission mechanism comprises a transmission frame, two sets of driving frames, a motor one, a rotating shaft, two sets of lead screws, a moving block and a tension sensor, the transmission frame is fixed to the top of the rack, the transmission frame is fixed to the side of the rack, two sets of the driving frames are fixed to the top of the rack, the motor one is fixed to the inside of the transmission frame, the rotating shaft is in bearing connection with the inside of the transmission frame, the motor one is in belt transmission connection with the rotating shaft, two sets of the lead screws are arranged in the two sets of driving frames respectively, the lead screws are in bearing connection with the driving frames, the end of the lead screw close to the side of the transmission frame penetrates through the transmission frame and is in bearing connection with the transmission frame, and the rotating shaft is in belt transmission connection with the two sets of lead screws.

[0010] According to the technical scheme, the two ends of the moving block are in transmission connection with the two sets of lead screws, the moving block is provided with a force adding rod at the center, the end of the force adding rod away from the transmission frame is provided with the tension sensor, and the end of the force adding rod close to the transmission frame is fixedly connected with a connecting seat one.

[0011] The side of the transmission frame close to the moving block is fixedly connected with a connecting seat two, and two sets of the clamps are fixed to the side of the connecting seat one and the connecting seat two respectively.

[0012] The opposite sides of the two sets of driving frames are respectively in sliding connection with dustproof covers.

[0013] According to the technical scheme, the base is arranged below the rack, the motor two is fixed to the side of the base, the moving seat is arranged on the top of the base, the moving seat is in sliding connection with the base, the moving seat is in transmission connection with the motor two through the lead screw, the lifting seat is fixed to the top of the moving seat, and the supporting assembly is arranged on the top of the lifting seat.

[0014] According to the technical scheme, the supporting box is fixed to the top of the lifting seat, the box cover is connected to the side of the supporting box through a hinge, two sets of grooves are arranged on the top of the supporting box, a plurality of spring ones are arranged in the grooves, the supporting seats are arranged in the grooves, the supporting seats are in sliding connection with the supporting box, the spring ones are fixedly connected with the supporting box and the supporting seats at two ends respectively, the connecting frame is in sliding connection with the inside of the supporting box, and the connecting frame is fixedly connected with the two sets of supporting seats.

[0015] Two sets of pressing blocks are fixedly connected to the box cover, the pressing blocks are located on the inner side of the box cover, two sets of pressing grooves are arranged on the top of the supporting box, and the positions and sizes of the pressing grooves and the pressing blocks are matched.

[0016] According to the above technical solution, an empty groove is provided inside the support box on the side away from the box cover and hinged to the support box, and a plurality of springs 2, two groups of sliders 1, sliders 2 and a plurality of springs 3 are provided inside the empty groove. The spring 2 is arranged in the horizontal direction, and the two ends of the spring 2 are respectively fixedly connected to the support box and the slider 1. The spring 3 is arranged in the vertical direction, and the two ends of the spring 3 are respectively fixedly connected to the slider 2. The slider 1 is located above the slider 2, and the slider 1 and the slider 2 are both slidably connected to the support box. The slider 1 and the slider 2 are close to each other and a matching inclined surface is provided. The top of the slider 1 and the side of the pressure block facing the box cover are both provided with inclined surfaces, and the positions of the two groups of sliders 1 correspond to the pressure grooves.

[0017] The two groups of connection ports are fixed on one side of the support box away from the hinged portion with the box cover, and air flow holes are provided through the support box at positions corresponding to the connection ports.

[0018] According to the above technical solution, the detection mechanism includes a third motor, a camera, and a connecting rod. A connecting plate is fixedly connected to the top of the frame near the transmission frame. The third motor is fixed to the bottom of the connecting plate. The connecting rod is arranged on the top of the connecting plate. The connecting rod is connected to the connecting plate bearing. The output end of the third motor is fixedly connected to the connecting plate. The connecting rod is L-shaped. The camera is arranged below the end away from the third motor.

[0019] The camera and the tension sensor are both electrically connected to a data analysis module, and the data analysis module is used to acquire, identify, and analyze the images captured by the camera and acquire and analyze the tension data acquired by the tension sensor.

[0020] According to the above technical solution, the spacing between two adjacent groups of columns close to the pull-out slot passing through one side of the support box is the same as the spacing between the two groups of air flow holes, and the spacing between the other group of columns and the adjacent columns is half of the spacing between the air flow holes.

[0021] According to the above technical solution, a number of limiting grooves are equidistantly arranged on one side of the pull-out plate close to the air flow hole, and the spacing between two adjacent groups of the limiting grooves is half of the spacing between the two groups of air flow holes. Two groups of limiting protrusions are fixedly connected to the bottom of the connecting frame, and the shape and size of the limiting protrusions match the limiting grooves. The spacing between the two groups of limiting protrusions is the same as the spacing between the two groups of air flow holes and the positions correspond.

[0022] Compared with the prior art, the present invention has the following beneficial effects: when the box cover is closed, the present invention can utilize the pressure block to drive the first and second sliders to move via the inclined surface when the box cover is closed, thereby automatically unblocking the airflow channel. The present invention can also utilize the gravity of the corner column and corner fitting to drive the support seat to descend, and then drive the connecting frame to move downward, automatically opening the airflow holes inside the support box, thereby avoiding the danger of manual operation omissions and accidental activation of the environmental simulation source, thereby improving the safety of the tensile test, and at the same time achieving seamless connection between the clamping process and the environmental simulation conditions, reducing human intervention.

[0023] By setting up an adjustment mechanism, abnormal environments such as low temperature and salt spray can be simulated on specific local areas of corner columns and corner fittings during the tensile test, rather than the traditional overall environmental simulation. This is closer to the scenario where local corner columns and corner fittings are affected by the environment in actual use, and the test results are more targeted, and it is conducive to improving the accuracy and diversity of test data. At the same time, the position of the three sets of fan wheels can be adjusted by using the pull-out plate, and then the three-level adjustment of the fan wheel position can be achieved through the cooperation of the limit groove and the limit protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a partial structural schematic rear view of the present invention;

[0027] Figure 3 The present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0028] Figure 4 It is a schematic structural diagram of the support assembly of the present invention;

[0029] Figure 5 is a rear schematic view of the support assembly of the present invention;

[0030] Figure 6 This is a schematic diagram of the rear cross-sectional structure of the support seat of the present invention in a compressed state;

[0031] Figure 7 This is a schematic cross-sectional view of the structure of the support assembly of the present invention at the pressure groove in the open state;

[0032] Figure 8 The present invention Figure 7 Schematic diagram of the enlarged structure of the middle B area;

[0033] Figure 9This is a schematic cross-sectional view of the connection port of the support assembly of the present invention in an open state;

[0034] Figure 10 The present invention Figure 9 Schematic diagram of the enlarged structure of the middle C area;

[0035] Figure 11 This is a schematic cross-sectional view of the structure of the support assembly of the present invention at the groove portion in a closed state;

[0036] Figure 12 The present invention Figure 11 Schematic diagram of the enlarged structure of the middle D area;

[0037] Figure 13 This is a schematic cross-sectional view of the structure of the support assembly of the present invention at the groove portion in a closed state;

[0038] Figure 14 The present invention Figure 13 Schematic diagram of the enlarged structure of the middle E area;

[0039] Figure 15 This is a top view schematic diagram of the two sets of impellers corresponding to the two sets of airflow holes of the present invention;

[0040] Figure 16 This is a top view schematic diagram of a group of impellers corresponding to one group of airflow holes of the present invention;

[0041] Figure 17 This is a top view schematic diagram of the present invention when both sets of impellers do not correspond to the two sets of airflow holes;

[0042] In the figure: 1. Frame; 2. Transmission mechanism; 21. Transmission frame; 22. Drive frame; 23. Motor 1; 24. Rotating shaft; 25. Screw; 26. Moving block; 27. Force rod; 28. Tension sensor; 29. ​​Dust cover; 210. Connecting seat 2; 3. Clamp; 4. Support mechanism; 41. Base; 42. Motor 2; 43. Moving seat; 44. Lifting seat; 45. Support assembly; 451. Support box; 452. Box cover; 453. Groove; 454. Spring 1; 455 , support seat; 456, pressure block; 457, empty slot; 458, spring two; 459, slider one; 4510, slider two; 4511, spring three; 4512, connecting frame; 4513, connecting port; 5, detection mechanism; 51, motor three; 52, camera; 53, connecting rod; 54, connecting plate; 6, adjustment mechanism; 61, pull-out plate; 62, pull-out slot; 63, limit block; 64, column; 65, fan wheel; 66, limit slot; 67, limit protrusion; 7, corner column and corner piece. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figure 1-17 The present invention provides a technical solution: a tensile testing device for a corner post and corner fitting of a tank container, comprising a frame 1, a transmission mechanism 2, two sets of clamps 3, a support mechanism 4, a detection mechanism 5, an adjustment mechanism 6, and a corner post and corner fitting 7. The transmission mechanism 2 and the detection mechanism 5 are arranged on the top of the frame 1, the two sets of clamps 3 are arranged on the transmission mechanism 2, the support mechanism 4 is arranged at the bottom of the frame 1, the adjustment mechanism 6 is arranged on the support mechanism 4, and the corner post and corner fitting 7 is arranged on the top of the support mechanism 4. The support mechanism 4 is used to assist in clamping the corner post and corner fitting 7 to the two sets of clamps 3, and the clamps 3 are used to clamp the corner post and corner fitting 7. The transmission mechanism 2 is used to drive one set of clamps 3 to move away from the other set of clamps 3 to perform a tensile test on the corner post and corner fitting 7 clamped on the two sets of clamps 3. The adjustment mechanism 6 is used to adjust the airflow distribution state when simulating an abnormal environment.

[0045] Specifically, such as Figure 1-Figure 3 As shown, the transmission mechanism 2 includes a transmission frame 21, two groups of drive frames 22, a motor 23, a rotating shaft 24, two groups of screw rods 25, a moving block 26 and a tension sensor 28. The transmission frame 21 is fixed to the top of the frame 1, the transmission frame 21 is fixed to the side of the frame 1, the two groups of drive frames 22 are fixed to the top of the frame 1, the motor 23 is fixed inside the transmission frame 21, the internal bearing of the transmission frame 21 is connected with the rotating shaft 24, the motor 23 and the rotating shaft 24 are connected by a pulley transmission, the two groups of screw rods 25 are respectively arranged inside the two groups of drive frames 22, the two groups of screw rods 25 are connected to the bearings of the drive frame 22, the end of the screw rod 25 close to the side of the transmission frame 21 passes through the transmission frame 21 and is connected to the bearing of the transmission frame 21, and the rotating shaft 24 and the two groups of screw rods 25 are connected by a pulley transmission.

[0046] Further, such as Figure 1 and Figure 2 As shown, both ends of the moving block 26 are connected to the two sets of screw rods 25 for transmission. A force rod 27 is provided at the center of the moving block 26. A tension sensor 28 is provided at the end of the force rod 27 away from the transmission frame 21. The end of the force rod 27 close to the transmission frame 21 is fixedly connected to a connecting seat 1, and the tension sensor 28 is provided on the side of the moving block 26 away from the transmission frame 21.

[0047] A second connecting seat 210 is fixedly connected to one side of the transmission frame 21 close to the moving block 26 , and two sets of clamps 3 are respectively fixed to the sides of the first connecting seat 210 and the second connecting seat 210 .

[0048] Two groups of drive frame 22 relative to one side are slidingly connected with dust cover 29, dust cover 29 is uniformly respectively in the moving block 26 two sides, the end of dust cover 29 close to the moving block 26 is fixedly connected with the moving block 26, dust cover 29 is used for preventing the pollution of lead screw 25 from external environment, and simultaneously preventing the accidental fracture of angle column corner part 7 from causing unrecoverable damage to lead screw 25 during test.

[0049] In actual operation, motor one 23 starts positive rotation, drives rotating shaft 24 positive rotation through belt wheel transmission, and then drives two groups of lead screw 25 positive rotation through belt wheel transmission of rotating shaft 24, so that moving block 26 moves to the side close to transmission frame 21, moving block 26 moves at the same time to drive dust cover 29 to move, so that the dust cover 29 between moving block 26 and transmission frame 21 is compressed, and the dust cover 29 on the side away from transmission frame 21 of moving block 26 is stretched, which plays a role of continuously protecting the lead screw in the drive frame 22; on the contrary, motor one 23 starts reverse rotation to drive moving block 26 to move away from transmission frame 21, at this time, the angle column corner part 7 clamped by two groups of clamps 3 can be subjected to tensile test, and tensile sensor 28 obtains the tensile force during tensile test.

[0050] It should be noted that dust cover 29 is a folding dust cover; the rotation of lead screw 25 drives moving block 26 to move along the setting direction of lead screw 25, which is the existing driving mode, and will not be described in detail here.

[0051] Specifically, as shown in Figure 1 The support mechanism 4 includes a base 41, a motor two 42, a moving seat 43, a lifting seat 44 and a supporting assembly 45, the base 41 is arranged below the rack 1, the motor two 42 is fixed to the side of the base 41, the moving seat 43 is arranged on the top of the base 41, the moving seat 43 is slidingly connected with the base 41, the moving seat 43 is connected with the motor two 42 through the lead screw transmission, the lifting seat 44 is fixed to the top of the moving seat 43, the supporting assembly 45 is arranged on the top of the lifting seat 44, the motor two 42 is used for driving the moving seat 43 to move left and right on the top of the base 41 along the setting direction of the base 41 through the lead screw transmission, the lifting seat 44 is driven to lift by hydraulic pressure, so as to realize the effect that the supporting assembly 45 supports the angle column corner part 7 and clamps the angle column corner part 7 on the clamp 3.

[0052] Further, as shown in Figure 1 And Figure 4-Figure 6As shown, the support assembly 45 includes a support box 451, a box cover 452, two groups of support seats 455 and two groups of connection ports 4513. The support box 451 is fixed to the top of the lifting seat 44. The box cover 452 is connected to the side of the support box 451 by a hinge. Two groups of grooves 453 are opened on the top of the support box 451. The two groups of grooves 453 are arranged along the setting direction of the frame 1. A plurality of springs 454 are arranged inside the grooves 453. The support seats 455 are arranged in the grooves 453. The support seats 455 are slidably connected to the support box 451. The two ends of the spring 454 are fixedly connected to the support box 451 and the support seats 455 respectively. A connecting frame 4512 is slidably connected to the inside of the support box 451. The connecting frame 4512 is fixedly connected to the two groups of support seats 455.

[0053] Two groups of pressing blocks 456 are fixedly connected to the box cover 452, and the pressing blocks 456 are located on the inner side of the box cover 452. A handle is fixedly connected to the outer side of the box cover 452. Two groups of pressing grooves are provided on the top of the support box 451, and the positions and sizes of the pressing grooves match those of the pressing blocks 456.

[0054] like Figure 4 、 Figure 7-10 As shown, a slot 457 is provided inside the support box 451 on the side away from the box cover 452 and hinged to the support box 451. A plurality of springs 458, two sets of sliders 459, sliders 4510 and a plurality of springs 4511 are provided inside the slot 457. The springs 458 are arranged in a horizontal direction, and the two ends of the springs 458 are fixedly connected to the support box 451 and the slider 459 respectively. The springs 4511 are arranged in a vertical direction, and the two ends of the springs 4511 are fixedly connected to the sliders 4510 and 4511 respectively. 459 is located above slider 2 4510. Slider 1 459 and slider 2 4510 are both slidably connected to the support box 451. The sliding direction of slider 1 459 is parallel to the top of the frame 1, and the sliding direction of slider 2 4510 is perpendicular to the vertical direction of the top of the frame 1. The side where slider 1 459 and slider 2 4510 are close to each other is provided with a matching inclined surface. The top of slider 1 459 and the side of the pressure block 456 facing the box cover 452 are both provided with inclined surfaces. The two groups of sliders 1 459 correspond to the positions of the pressure grooves.

[0055] Two sets of connection ports 4513 are fixed to one side of the support box 451 away from the hinged connection with the box cover 452. Air flow holes are provided on the support box 451 at positions corresponding to the connection ports 4513. The connection ports 4513 are used to connect to air flow pipes. The other end of the air flow pipes is used to connect to an environmental simulation source. The environmental simulation source includes at least a low-temperature air pump or a salt spray generator, which is connected to the connection ports 4513 through pipes to facilitate abnormal environmental simulation of the corner column and corner fitting 7 located in the local enclosed space formed by the support box 451 and the box cover 452.

[0056] In actual operation, the worker uses the lifting appliance to place the corner post corner piece 7 on the supporting seat 455, drives the lifting seat 44 to move along the setting direction of the base 41 by controlling the motor 2, and then drives the lifting seat 44 to lift so that the corner post corner piece 7 on the supporting seat 455 is located between the two sets of clamps 3, and the bottom of the corner post corner piece 7 is flush with the height of the clamping part of the clamp 3, facilitating clamping the corner post corner piece 7 to the clamp 3; when the corner post corner piece 7 is placed above the supporting seat 455, the spring 1 454 is compressed due to the gravity of the corner post corner piece 7, the supporting seat 455 is lowered, and the connecting frame 4512 connected with the supporting seat 455 is also lowered, so that the airflow hole close to the inside of the supporting box 451 is presented and in an open state, as shown in Figure 7

[0057] When the environmental simulation is needed, the worker drives the box cover 452 to close by pulling the handle, so that the pressing block 456 on the box cover 452 is completely inserted into the pressing groove at the top of the supporting box 451; due to the inclined surface of the pressing block 456 and the sliding block 1 459 and the sliding direction of the sliding block 1 459 being parallel to the top of the rack 1 and having a downward movement trend, the pressing block 456 extrudes the sliding block 1 459, so that the sliding block 1 459 moves along the sliding direction and moves close to the inside of the supporting box 451; when the pressing block 456 is completely inserted into the pressing groove, the pressing block 456 slides down from the inclined surface of the sliding block 1 459, i.e., the pressing block 456 is located between the sliding block 1 459 and the supporting box 451; at the same time, the spring 2 458 is compressed, and due to the mutually matching inclined surfaces of the sliding block 1 459 and the sliding block 2 4510 and the sliding direction of the sliding block 2 4510 being a vertical direction perpendicular to the top of the rack 1, when the sliding block 1 459 moves close to the inside of the supporting box 451, the sliding block 1 459 extrudes the sliding block 2 4510, so that the sliding block 2 4510 moves downward along the sliding direction, and the spring 3 4511 is compressed, the sliding block 2 4510 unblocks the airflow hole in the air slot 457, so that the airflow hole is in a communication state, as shown in Figure 11-14 At this time, the worker controls the environmental simulation source to start, and different airflow conditions are introduced into the local closed space formed by the supporting box 451 and the box cover 452 through the airflow pipeline and the airflow hole, so as to achieve the effect of local abnormal environmental simulation on the corner post corner piece 7, facilitate obtaining the influence of the local environmental abnormality on the tensile test result of the corner post corner piece 7, and further improve the accuracy of the tensile test result of the corner post corner piece 7;

[0058] ​After the environmental simulation is completed, the staff first pulls the handle to open the box cover 452, releasing the partially enclosed space formed by the support box 451 and the box cover 452. At this time, the pressure block 456 releases the squeeze on the slider 1 459, and the slider 1 459 moves away from the inside of the support box 451 along the sliding direction under the action of the elastic force of the spring 2 458. At the same time, the slider 1 459 releases the squeeze on the slider 2 4510, and the slider 2 4510 moves upward along the sliding direction under the elastic force of the spring 3 4511, so that the slider 2 4510 continues to block part of the air flow holes in the support box 451. Then the lifting seat 44 is controlled to descend, and the support of the support seat 455 on the diagonal column corner piece 7 is released. At this time, the support seat 455 moves upward under the elastic force of the spring 1 454, and at the same time drives the connecting frame 4512 upward to block the air flow holes near the inside of the support box 451, so as to avoid injury to the staff due to the air flow holes being in the open state when the environmental simulation source is abnormally started.

[0059] It should be noted that the inclined surface at the top of the slider 459 and the inclined surface of the pressure block 456 facing the box cover 452 are not necessarily matched, but the inclined surfaces of the two can satisfy the requirement that the slider 459 is driven to move when the pressure block 456 is in a descending state, and the depth of the pressure block 456 inserted into the pressure groove is greater than the sum of the thickness of the support box 451 at the pressure groove and the height of the inclined surface of the slider 459. A straight section is provided at the bottom of the inclined surface of the pressure block 456; therefore, when the staff releases the pull on the handle and the restriction on the box cover 452 and closes the box cover 452, the slider 459 is released under the elastic force of the spring 458. Under the action of , the straight section of the pressure block 456 inserted in the pressure groove can be squeezed again, and then the slider 1 459 can limit the position of the pressure block 456, preventing the pressure block 456 from sliding out of the pressure groove due to the existence of the inclined surface, releasing the squeezing of the slider 1 459, destroying the closed state of the box cover 452 and the support box 451, and at the same time allowing the slider 2 4510 to block the air flow hole located in the support box 451, destroying the conditions for abnormal environmental simulation, and avoiding injuries to the staff due to the air flow hole being continuously in the open state when the environmental simulation source is abnormally started.

[0060] Specifically, such as Figure 1-Figure 3 As shown, the detection mechanism 5 includes a third motor 51, a camera 52, and a connecting rod 53. A connecting plate 54 is fixedly connected to the top of the frame 1 near the transmission frame 21. The third motor 51 is fixed to the bottom of the connecting plate 54. The connecting rod 53 is arranged on the top of the connecting plate 54. The connecting rod 53 and the connecting plate 54 are connected by bearings. The output end of the third motor 51 is fixedly connected to the connecting plate 54. The connecting rod 53 is L-shaped. The camera 52 is arranged below the end away from the third motor 51. The third motor 51 is used to drive the connecting plate 54 to rotate, thereby driving the camera 52 to adjust its position to prevent accidental collision with the camera 52 when the corner column and corner piece 7 is hoisted onto the support seat 455, thereby affecting subsequent normal analysis and judgment.

[0061] The camera 52 and the tension sensor 28 are both electrically connected with a data analysis module, which is used to acquire, identify and analyze the picture taken by the camera 52 and acquire and analyze the tension data acquired by the tension sensor 28.

[0062] Specifically, as shown in Figure 4 , Figure 5-Figure 8 The adjusting mechanism 6 includes a pull-out plate 61, three groups of stand columns 64 and three groups of fan wheels 65. The bottom of the supporting box 451 is provided with a pull-out slot 62, which penetrates through one side of the supporting box 451. The pull-out plate 61 is located inside the pull-out slot 62. Two groups of limiting blocks 63 are fixedly connected inside the supporting box 451, one group of which is located above the pull-out plate 61, and the other group is located on the side of the pull-out plate 61 away from the air flow holes. The two groups of limiting blocks 63 are used to limit the position of the pull-out plate 61. The pull-out plate 61 is slidingly connected with the supporting box 451. The three groups of stand columns 64 are fixed to the top of the pull-out plate 61. The three groups of fan wheels 65 are bearingly connected to the side of the stand columns 64, respectively. The distance between the adjacent two groups of stand columns 64 near the side of the supporting box 451 penetrated by the pull-out slot 62 is the same as the distance between the two groups of air flow holes. The distance between the other group of stand columns 64 and the adjacent stand column 64 is half of the distance between the air flow holes. The pull-out plate 61 is provided with marks for limiting the corresponding positions thereof.

[0063] A plurality of limiting grooves 66 are equidistantly arranged on the side of the pull-out plate 61 close to the air flow holes. The distance between the adjacent two groups of limiting grooves 66 is half of the distance between the two groups of air flow holes. Two groups of limiting protrusions 67 are fixedly connected to the bottom of the connecting frame 4512. The limiting protrusions 67 are matched with the limiting grooves 66 in shape and size. The distance between the two groups of limiting protrusions 67 is the same as the distance between the two groups of air flow holes and corresponds in position.

[0064] In actual operation, the staff adjusts the pull-out plate 61 according to the actual test conditions to be simulated, so that the fan wheels 65 on the three groups of stand columns 64 present different corresponding conditions with the air flow holes. When the fan wheels 65 correspond in position with the air flow holes, the air flow out of the air flow holes directly faces the fan wheels 65, which can drive the fan wheels 65 to rotate, quickly dispersing the air flow into the inside of the supporting box 451, promoting the uniformity of the environment inside the supporting box 451, so as to be able to judge the influence of the local range of the corner column corner piece 7 affected by the environment on the tension test results. When the fan wheels 65 do not correspond in position with the air flow holes, the air flow will directly impact a specific point of the corner column corner piece 7, so that this point on the corner column corner piece 7 is obviously affected by the environment, so as to be able to acquire the influence of the specific point of the corner column corner piece 7 seriously affected by the environment on the tension test results.

[0065] The three situations of the fan wheels 65 corresponding to the air flow holes are as follows: Figure 15As shown, suitable for determining the influence of the local range environment simulation on the tensile test results of the corner column corner piece 7; case two: one group of fan wheels 65 corresponds to one group of airflow holes, and the other group of fan wheels 65 does not correspond to the other group of airflow holes, as shown in Figure 16 As shown, suitable for determining the influence of a point of the corner column corner piece 7 on the tensile test results after environmental simulation; case three: both groups of fan wheels 65 do not correspond to both groups of airflow holes, as shown in Figure 17 As shown, suitable for determining the influence of two point positions of the corner column corner piece 7 on the tensile test results after environmental simulation.

[0066] It should be noted that the box cover 452 is provided with two groups of shielding curtains on the side facing the supporting box 451, which are located on the side of the supporting seat 455, and are used to form a locally sealed space when the box cover 452 and the supporting box 451 are in a closed state.

[0067] Test method of the tensile test device for the corner column corner piece 7 of the tank container:

[0068] Step one: the staff adjusts the position of the pull-out plate 61 according to the actual test conditions to be simulated, so that the fan wheel 65 and the airflow hole present different corresponding states.

[0069] Step two: use the lifting tool to place the corner column corner piece 7 on the supporting assembly 45, and then control the motor two 42 to start and the lifting seat 44 to lift, and the corner column corner piece 7 is clamped on the two groups of clamps 3.

[0070] Step three: perform tensile test on the corner column corner piece 7.

[0071] Specifically, basic tensile test: after the corner column corner piece 7 is clamped, first control the lifting seat 44 to descend, release the support of the supporting assembly 45 to the corner column corner piece 7, then control the motor one 23 to start and reverse, drive the moving block 26 to move away from the transmission frame 21, and perform tensile test on the corner column corner piece 7 clamped on the two groups of clamps 3, and at the same time, control the motor three 51 to start and drive the connecting plate 54 to rotate, and drive the camera 52 to be located above the corner column corner piece 7.

[0072] Tensile test after abnormal environment simulation: after the corner column corner piece 7 is clamped, keep the lifting seat 44 in a raised state, and the supporting assembly 45 continues to support the corner column corner piece 7, the supporting seat 455 descends under the gravity of the corner column corner piece 7, the spring one 454 is compressed, the descending supporting seat 455 synchronously drives the connecting frame 4512 to descend, so that the airflow hole close to the inside of the supporting box 451 is in an open state, and at the same time, the limiting protrusion 67 below the connecting frame 4512 is inserted into the limiting slot 66 on the pull-out plate 61, limiting the pull-out plate 61, that is, limiting the fan wheel 65, and keeping the corresponding state of the fan wheel 65 and the airflow hole determined in step one;

[0073] Afterwards, the staff drives the box cover 452 to close, so that the pressure block 456 on the box cover 452 is inserted into the pressure groove at the top of the support box 451. Under the action of the pressure block 456, the slider 1 459 is first squeezed to move in the direction of sliding toward the inside of the support box 451. Then, the slider 1 459 moving toward the inside of the support box 451 squeezes the slider 2 4510, causing the slider 2 4510 to move downward in the sliding direction, thereby releasing the blockage of the air flow hole in the empty slot 457, so that the air flow hole becomes connected. Then, the control environment simulation source is activated, and different air flow conditions are introduced into the local enclosed space formed by the support box 451 and the box cover 452 through the air flow duct and the air flow hole, so as to simulate the abnormal environment locally on the corner column corner piece 7.

[0074] After a certain period of simulation, the staff turns off the environmental simulation source and opens the box cover 452 at the same time, and then conducts a basic tensile test.

[0075] Step 4: The data analysis module obtains the tension data detected by the tension sensor 28 and the images captured by the camera 52 when the corner column and corner fitting 7 is subjected to tension testing, and performs data analysis.

[0076] Specifically, when the tensile test is performed again, the data analysis module obtains the tensile data detected by the tensile sensor 28, and simultaneously obtains and identifies the picture taken by the camera 52. When a fracture occurs in the captured picture, the data analysis module records the corresponding fracture position and the corresponding tensile force. The tensile force when the fracture occurs in the basic tensile test is recorded as F, and the tensile force when the fracture occurs in the tensile test after the abnormal environment simulation is recorded as f. Then, combined with the part where the abnormal environment simulation is performed, the tensile force F when the fracture occurs in the basic tensile test, and the tensile force f when the fracture occurs in the tensile test after the abnormal environment simulation, the influence of the abnormal environment on the tensile test results is obtained.

[0077] The data analysis module is also provided with a deviation coefficient for judging whether the tension f of the tension test after abnormal environment simulation is close to the tension F of the basic tension test. The deviation coefficient is denoted as n. When f∈[Fn, F+n], the tension f of the tension test after abnormal environment simulation is close to the tension F of the basic tension test.

[0078] The parts of abnormal environment simulation are different from the parts of abnormal conditions in basic tensile testing:

[0079] When f∈[Fn, F+n] and the fracture location are the same, the abnormal environment does not affect the tensile test results of the corner column corner fitting 7;

[0080] When f∈[Fn, F+n] and the fractured part is in the local range or specific point of the abnormal environment simulation, the abnormal environment has little effect on the tensile test results of the corner column corner fitting 7, but will not cause a significant decrease in tensile force;

[0081] When f∉[Fn, F+n] and the fracture location is the same, it means that the location has its own defects or the test is abnormal, and it is necessary to re-select the corner column and corner piece 7 for the tensile test.

[0082] When f∉[Fn, F+n] and the fractured portion is in a local range or specific point where abnormal environment simulation is being conducted, f<Fn is usually the case. This indicates that the abnormal environment has a significant impact on the tensile test results of the corner column fitting 7 and will significantly reduce the tensile force of the corner column fitting 7. If f>F+n occurs, this may be a test abnormality and the corner column fitting 7 needs to be reselected for the tensile test.

[0083] The abnormal environment simulation locations are the same as the locations where abnormal conditions occur in the basic tensile test:

[0084] When f∈[Fn, F+n] and the fracture location are the same, the abnormal environment does not affect the tensile test results of the corner column corner fitting 7;

[0085] When f∈[Fn, F+n] and the fracture location changes, the abnormal environment does not affect the tensile test results of the corner column corner piece 7, but other parts of the corner column corner piece 7 may have abnormalities, and the corner column corner piece 7 needs to be reselected for tensile testing;

[0086] When f∉[Fn, F+n] and the fracture locations are the same, f<Fn is usually the case, indicating that the abnormal environment has a significant impact on the tensile test results of the corner post fitting 7, significantly reducing the tensile force of the corner post fitting 7. If f>F+n, it may be a test abnormality, and the corner post fitting 7 needs to be reselected for the tensile test.

[0087] When f∉[Fn, F+n] and the fracture site changes, the abnormal environment does not affect the tensile test result of the corner column corner fitting 7, but other parts of the corner column corner fitting 7 may have abnormalities, and the corner column corner fitting 7 needs to be reselected for the tensile test.

[0088] When the corner post and corner fitting 7 is re-selected for the tensile test, if there is still an abnormality in the corner post and corner fitting 7 itself, or there may be abnormalities in other parts, or the test is abnormal, a prompt will be given and the staff will actively check the cause of the abnormality.

[0089] Through the above method, auxiliary clamping can be performed on the corner column and corner fitting 7 undergoing the tensile test. At the same time, a local abnormal environment simulation can be performed on the basis of the tensile test of the basic corner column and corner fitting 7, so as to obtain the tensile test results of the corner column and corner fitting 7 locally affected by the abnormal environment and the influence of different parts affected by the abnormal environment on the tensile test results, thereby improving the accuracy of the tensile test results.

[0090] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0091] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tank container corner post and corner fitting tensile testing device, comprising a frame (1), a transmission mechanism (2), two sets of clamps (3), a support mechanism (4), a detection mechanism (5), an adjustment mechanism (6) and a corner post and corner fitting (7), characterized in that: The transmission mechanism (2) and the detection mechanism (5) are arranged on the top of the frame (1), the two sets of clamps (3) are arranged on the transmission mechanism (2), the support mechanism (4) is arranged on the bottom of the frame (1), the adjustment mechanism (6) is arranged on the support mechanism (4), and the corner column and corner piece (7) are arranged on the top of the support mechanism (4); The support mechanism (4) includes a base (41), a second motor (42), a movable seat (43), a lifting seat (44) and a support assembly (45), wherein the support assembly (45) includes a support box (451), a box cover (452), two groups of support seats (455) and two groups of connection ports (4513); The adjustment mechanism (6) includes a pull-out plate (61), three groups of columns (64) and three groups of impellers (65); a pull-out groove (62) is provided at the bottom of the support box (451); the pull-out groove (62) passes through one side of the support box (451); the pull-out plate (61) is located inside the pull-out groove (62); two groups of limit blocks (63) are fixedly connected inside the support box (451); the pull-out plate (61) is slidably connected to the support box (451); the three groups of columns (64) are fixed to the top of the pull-out plate (61); and the three groups of impellers (65) are respectively connected to the side of the columns (64) by bearings; The support box (451) is fixed to the top of the lifting seat (44), the box cover (452) is connected to the side of the support box (451) through a hinge, two groups of grooves (453) are opened on the top of the support box (451), a plurality of springs (454) are arranged inside the grooves (453), the support seat (455) is arranged in the grooves (453), the support seat (455) is slidably connected to the support box (451), the two ends of the spring (454) are fixedly connected to the support box (451) and the support seat (455), the support box (451) is slidably connected to the inside of the support box (451), and the connection frame (4512) is fixedly connected to the two groups of support seats (455); Two groups of pressing blocks (456) are fixedly connected to the box cover (452), and the pressing blocks (456) are located on the inner side of the box cover (452). Two groups of pressing grooves are provided on the top of the support box (451), and the positions and sizes of the pressing grooves match those of the pressing blocks (456); The support box (451) is provided with an empty slot (457) on the side away from the box cover (452) and hinged to the support box (451). The empty slot (457) is provided with a plurality of springs 2 (458), two groups of sliders 1 (459), sliders 2 (4510) and a plurality of springs 3 (4511). The springs 2 (458) are arranged in a horizontal direction. The two ends of the springs 2 (458) are fixedly connected to the support box (451) and the sliders 1 (459) respectively. The springs 3 (4511) are arranged in a vertical direction. The two ends of spring three (4511) are respectively fixedly connected to slider two (4510), the slider one (459) is located above the slider two (4510), the slider one (459) and the slider two (4510) are both slidably connected to the support box (451), the slider one (459) and the slider two (4510) are close to each other and are provided with matching inclined surfaces, the top of the slider one (459) and the side of the pressure block (456) facing the box cover (452) are both provided with inclined surfaces, and the two groups of sliders one (459) correspond to the positions of the pressure grooves; Two groups of the connection ports (4513) are fixed to one side of the support box (451) away from the hinged connection with the box cover (452), and air flow holes are provided through the support box (451) at positions corresponding to the connection ports (4513). The connection ports (4513) are used to connect to an air flow duct, and the other end of the air flow duct is used to connect to an environmental simulation source. The second slider (4510) moves downward along the sliding direction, releasing the blockage of the air flow hole inside the empty slot (457), so that the air flow hole is in a connected state.

2. A tank container corner post and corner fitting tensile testing device according to claim 1, characterized in that: The transmission mechanism (2) includes a transmission frame (21), two sets of drive frames (22), a motor (23), a rotating shaft (24), two sets of screw rods (25), a moving block (26) and a tension sensor (28), wherein the transmission frame (21) is fixed to the top of the frame (1), the transmission frame (21) is fixed to the side of the frame (1), the two sets of drive frames (22) are fixed to the top of the frame (1), the motor (23) is fixed inside the transmission frame (21), and the transmission frame ( 21) The internal bearing is connected to a rotating shaft (24), the motor 1 (23) and the rotating shaft (24) are connected by a pulley transmission, the two groups of the screw rods (25) are respectively arranged inside the two groups of driving frames (22), the two groups of the screw rods (25) are connected to the bearings of the driving frames (22), the end of the screw rod (25) close to the side of the transmission frame (21) passes through the transmission frame (21) and is connected to the bearing of the transmission frame (21), and the rotating shaft (24) and the two groups of the screw rods (25) are connected by a pulley transmission.

3. A tank container corner post and corner fitting tensile testing device according to claim 2, characterized in that: Both ends of the moving block (26) are transmission-connected to two sets of screw rods (25); a force rod (27) is provided at the center of the moving block (26); a tension sensor (28) is provided at the end of the force rod (27) away from the transmission frame (21); and a connecting seat 1 is fixedly connected to one end of the force rod (27) close to the transmission frame (21); The transmission frame (21) is fixedly connected to a second connecting seat (210) on one side close to the moving block (26), and the two sets of clamps (3) are respectively fixed to the sides of the first connecting seat and the second connecting seat (210); Dust covers (29) are slidably connected to opposite sides of the two groups of drive frames (22).

4. A tank container corner post and corner fitting tensile testing device according to claim 3, characterized in that: The base (41) is arranged below the frame (1), the second motor (42) is fixed to the side of the base (41), the movable seat (43) is arranged on the top of the base (41), the movable seat (43) is slidably connected to the base (41), the movable seat (43) is connected to the second motor (42) through a screw drive, the lifting seat (44) is fixed to the top of the moving seat (43), and the supporting assembly (45) is arranged on the top of the lifting seat (44).

5. A tank container corner post and corner fitting tensile testing device according to claim 4, characterized in that: The detection mechanism (5) includes a motor three (51), a camera (52), and a connecting rod (53); a connecting plate (54) is fixedly connected to the top of the frame (1) near the transmission frame (21); the motor three (51) is fixed to the bottom of the connecting plate (54); the connecting rod (53) is arranged on the top of the connecting plate (54); the connecting rod (53) is connected to the connecting plate (54) by a bearing; the output end of the motor three (51) is fixedly connected to the connecting plate (54); the connecting rod (53) is L-shaped; and the camera (52) is arranged below the end away from the motor three (51); The camera (52) and the tension sensor (28) are both electrically connected to a data analysis module, and the data analysis module is used to acquire, identify, and analyze images captured by the camera (52) and acquire and analyze tension data acquired by the tension sensor (28).

6. A tank container corner post and corner fitting tensile testing device according to claim 5, characterized in that: The spacing between two adjacent groups of columns (64) passing through one side of the support box (451) near the drawing slot (62) is the same as the spacing between the two groups of air flow holes, and the spacing between another group of columns (64) and adjacent columns (64) is half the spacing between the air flow holes.

7. A tank container corner post and corner fitting tensile testing device according to claim 6, characterized in that: A plurality of limiting grooves (66) are equidistantly arranged on one side of the pull-out plate (61) close to the air flow holes, and the spacing between two adjacent groups of the limiting grooves (66) is half the spacing between the two groups of air flow holes. Two groups of limiting protrusions (67) are fixedly connected to the bottom of the connecting frame (4512), and the shape and size of the limiting protrusions (67) match the limiting grooves (66). The spacing between the two groups of limiting protrusions (67) is the same as the spacing between the two groups of air flow holes and the positions correspond.

8. A tank container corner post and corner fitting tensile testing device according to claim 7, characterized in that: When conducting a tensile test, the data analysis module obtains the tensile data detected by the tensile sensor (28), and simultaneously obtains and identifies the image captured by the camera (52). When a fracture occurs in the captured image, the data analysis module records the corresponding fracture position and the corresponding tensile force. The tensile force when the fracture occurs in the basic tensile test is recorded as F, and the tensile force when the fracture occurs in the tensile test after the abnormal environment simulation is recorded as f. Then, the position where the abnormal environment simulation is conducted, the tensile force F when the fracture occurs in the basic tensile test, and the tensile force f when the fracture occurs in the tensile test after the abnormal environment simulation are combined to obtain the influence of the abnormal environment on the tensile test results of the corner column and corner piece (7).

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