Kunan tester device

Abstract

The invention discloses a Kinan tester device which comprises a first mounting frame, a second mounting frame located on one side of the first mounting frame and a plurality of sample preparation pipes, the plurality of sample preparation pipes are used for placing different materials, and a detection unit used for detecting combustion of the materials is arranged at the top of the first mounting frame. A pressing assembly used for pressing materials is arranged at the top of the second mounting frame, a plurality of heating assemblies used for being matched with sample preparation pipes of different sizes for heating are further arranged in the detection unit, each heating assembly comprises two annular heating plates, and the two annular heating plates form an O shape and the like. The wavy flow guide plate and the spiral fins are used in a mixed mode, so that the uniformity of the overall temperature field of the sample preparation pipe is improved, the sample preparation pipe can be better heated, inert gas is introduced into the detection unit, interference of air to a test result is avoided, and the test detection precision is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Koenig test machine, and particularly relates to a Koenig test instrument device. BACKGROUND

[0002] The Koenig test instrument is a key equipment for evaluating the combustion performance and safety of energetic materials (such as explosives and propellants), and its core function is to simulate the performance changes of the materials by heating or combustion to realize the thermal-mechanical coupling environment under actual working conditions: Combustion mode: the material combustion is triggered by electric spark or laser ignition to obtain energy release parameters such as combustion rate, pressure peak and explosion heat.

[0003] Heating mode: the heating system is used to heat the material to analyze the thermal stability, phase change temperature and thermal decomposition kinetics.

[0004] The existing patent with the publication number CN112014427B discloses a vacuum Koenig test device with solid-liquid dual measurement function, which comprises a left chassis, a right chassis installed on the right side of the left chassis, a sample preparation cavity installed on the top surface of the left chassis, a drop seat installed on the inner cavity bottom surface of the sample preparation cavity, a guide plate installed on the left inner wall of the sample preparation cavity, a guide plate installed on the right inner wall of the sample preparation cavity, an installation frame installed on the left side of the top surface of the sample preparation cavity, an electric cylinder installed on the right side of the installation frame, a clamp seat for clamping the sample preparation tube, and the structure is reasonable, and the two sample preparation tubes containing different materials can be compared after being heated and broken, for example, if the breaking condition of one sample preparation tube is greater than that of the other sample preparation tube, it is proved that the performance of the material in the sample preparation tube with serious breaking is lower than that of the other material, and the solid material has comparison when detected in a sealed heated environment. Of course, if one sample preparation tube does not break or crack, it is proved that the performance of this material is relatively stable.

[0005] It is found that the above device uses combustion mode to detect the performance of the material when in use, but in actual use, when heating, first, after pressing the ignition controller, the electronic ignition and external gas input will make the high-energy igniter ignite, and the two high-energy igniters ignite at the same time. At this time, the sample preparation tubes containing the same capacity of liquid material can be directly inserted into the two spring clamping seats, and the high-energy igniter after ignition heats the two sample preparation tubes from the bottom. The method of heating from the bottom causes the sample preparation tube to break and the liquid to splash on the detection seat structure corresponding to each of them. However, single-point heating from the bottom causes a significant radial temperature gradient of the sample preparation tube, which easily causes local overheating or thermal stress concentration, resulting in unintended rupture or decomposition reaction deviating from the actual working condition. Moreover, the above device only uses the sample preparation tube as a cylindrical thin-walled metal cylinder, and heating from the bottom of the sample preparation tube will cause the fluid near the tube wall to overheat, while the core area temperature is insufficient, affecting the accuracy of the test results.

[0006] Secondly, the device does not perform exhaust operation on the test cavity in use, and air convection in the test cavity can cause the temperature gradient of the sample preparation tube surface to increase, oxygen in the air can participate in thermal decomposition or combustion reaction of some energetic materials, and the measured data, such as thermal decomposition temperature and pressure peak, deviates from the true value, which causes inconvenience in actual use.

[0007] Therefore, it is necessary to provide a new Koenen tester device to solve the above technical problems. SUMMARY

[0008] To solve the above technical problems, the present application provides a Koenen tester device.

[0009] The Koenen tester device provided by the present application comprises a first mounting frame, a second mounting frame located on one side of the first mounting frame, and a plurality of sample preparation tubes for placing different materials. The top of the first mounting frame is provided with a detection unit for material combustion detection. The top of the second mounting frame is provided with a pressing assembly for pressing the material. The detection unit is further provided with a plurality of heating assemblies for adapting to different sizes of sample preparation tubes. Each heating assembly comprises two annular heating plates forming a 0 type. The inside of each annular heating plate is provided with a heating unit. The outside of each annular heating plate is slidably provided with a mounting plate. The size of the annular heating plate matches that of the mounting plate. The inside of each annular heating plate is fixedly provided with a spiral fin and a wave-shaped flow guide plate. The top of the detection unit is further provided with an air inlet and an air outlet for filling inert gas. The surface of each of the air inlet and the air outlet is provided with a second valve. The side of the second mounting frame away from the first mounting frame is further provided with a test unit for improving the test accuracy of the material.

[0010] Preferably, the top of the first mounting frame is fixedly provided with an operation unit and a fixing table. The operation unit is located on one side of the fixing table, and the detection unit is fixedly arranged on the top of the fixing table. The detection unit comprises a test box fixedly arranged on the top of the fixing table. One end of each of the air inlet and the air outlet is fixedly arranged on the top of the test box. A first groove is formed in the inner side wall of the test box. A sliding plate is slidably arranged on the inner side wall of the test box. Both ends of the sliding plate are slidably arranged on the inner side wall of the first groove. A plurality of mounting grooves are formed in the top of the sliding plate. An O-ring is fixedly arranged in each of the mounting grooves. The bottom of each of the sample preparation tubes is inserted into each of the mounting grooves. The inner side of the O-ring is in close contact with the outer side of the sample preparation tube. A first detection seat and a second detection seat are fixedly arranged on the inner side wall of the test box. A detection plate is fixedly arranged on the side of each of the first detection seat and the second detection seat close to the heating assembly. A temperature sensor and a controller are fixedly arranged on the top wall of the test box.

[0011] Preferably, the top of the annular heating plate is provided with two horizontal grooves, the outer side of the annular heating plate is provided with two vertical grooves, one end of each horizontal groove is communicated with the top of the corresponding vertical groove, the horizontal groove and the vertical groove jointly form an L shape, the inner side wall of the horizontal groove and the vertical groove is provided with a first limiting groove, the bottom wall of the horizontal groove and the vertical groove is provided with a second limiting groove, the end of the horizontal groove away from the vertical groove is provided with a third limiting groove, the outer side of the mounting plate is provided with a buckle groove, the bottom of the mounting plate is fixedly provided with two moving blocks, both ends of the two moving blocks are fixedly provided with mounting blocks, one side of the two mounting blocks close to the spiral clamp is fixedly provided with a first fixed block, the bottom of the two mounting blocks is fixedly provided with a second fixed block, the outer side of the two first fixed blocks and the two second fixed blocks is fixedly provided with a plurality of rollers, and the plurality of rollers respectively slide on the inner wall of the first limiting groove and the second limiting groove.

[0012] Preferably, the inside of the arc-shaped heating plate is formed with an independent accommodating cavity, the heating unit is located in the accommodating cavity, the heating unit comprises a plurality of annular heating pipes, the plurality of annular heating pipes are fixedly arranged in the inside of the accommodating cavity, and one end of the annular heating pipe is electrically connected with an external device through a wire.

[0013] Preferably, the top of the second mounting frame is fixedly provided with a first mounting box, the top of the first mounting box is fixedly provided with a fixed plate, one end of the pressing assembly is fixedly connected with the bottom of the fixed plate; The pressing assembly comprises an electric cylinder and a connecting column, the electric cylinder is fixedly arranged on the bottom of the fixed plate, the output end of the electric cylinder penetrates through the top of the first mounting box and is fixedly connected with one end of the connecting column, the inner side wall of the first mounting box is fixedly provided with a guide plate, the other end of the connecting column is fixedly provided with a sample making hammer, the bottom of the sample making hammer penetrates through the surface of the guide plate and extends to the position directly below the guide plate, the outer side of the sample making hammer slides on the surface of the guide plate, the bottom wall of the first mounting box is further fixedly provided with a first placing seat for placing a sample making tube, and the sample making hammer is located directly above the first placing seat.

[0014] Preferably, the inner side wall of the first mounting box is further fixedly provided with a material seat, one side of the material seat is provided with a slot, one side of the material seat is rotatably provided with a first door plate for opening or closing the slot, and a temporary storage box for temporarily storing materials is arranged in the slot.

[0015] Preferably, the test unit comprises a stirring mechanism and a viscosity test assembly, the second mounting frame is further provided with a third mounting frame away from the first mounting frame, the stirring mechanism and the viscosity test assembly are fixedly arranged on the top of the third mounting frame, and the stirring mechanism is located on one side of the viscosity test assembly. The viscosity testing assembly comprises a lifting frame and a viscometer fixed to the movable end of the lifting frame, the bottom of the lifting frame is fixed to the top of the third mounting frame, and the top of the third mounting frame is further provided with a second placement seat for placing a sample preparation tube, which is located directly below the viscometer.

[0016] Preferably, the stirring mechanism comprises a stirring box located on one side of the viscometer, the stirring box is fixed to the top of the third mounting frame, the top of the stirring box is fixed with a motor, the output end of the motor is fixed with a stirring rod, the bottom of the stirring rod penetrates through the top of the stirring box and is annularly provided with a plurality of stirring blades, the plurality of stirring blades are located in the interior of the stirring box, the top of the stirring box is further provided with an inlet, the inlet is located on one side of the motor, the bottom of the stirring box is further provided with an outlet, and the surface of the outlet is further provided with a first valve.

[0017] Preferably, the outer side of the test box is fixed with a side plate, the bottom of the side plate is fixed with a plurality of telescopic rods, the other end of the plurality of telescopic rods is fixed with a connecting plate, and the lower side of the test box is further provided with an adjusting assembly for adjusting the height of the sliding plate. The adjusting assembly comprises a screw rod, one end of the screw rod penetrates through the connecting plate, the fixed table and the bottom of the test box in sequence and is rotationally connected with the bottom of the sliding plate, and the other end of the screw rod is further fixed with a hand wheel.

[0018] Preferably, the outer side of the test box is rotationally provided with a second door plate, and the surface of the second door plate is fixed with a transparent plate. The operation unit comprises an operation table located on one side of the fixed table, the operation table is fixed to the top of the first mounting frame, and the surface of the operation table is further provided with a display screen.

[0019] Compared with the related art, the Koenen tester device provided by the present application has the following beneficial effects: The prior art adopts a bottom single-point heating mode, which causes a significant radial temperature gradient of the sample preparation tube and easily causes local overheating or thermal stress concentration; the present application forms an O-shaped surrounding structure by designing a double-ring heating plate, so that heat is uniformly radiated from the circumference of the sample preparation tube, and the spiral ribs on the inner side of the ring heating plate destroy the laminar boundary layer of the inner wall of the sample preparation tube; since the ribs extend spirally along the axial direction, the thermal expansion thereof will cause non-uniform displacement, which induces the formation of a reverse vortex flow perpendicular to the axial direction in the fluid, thereby strengthening the synergistic effect of heat convection and heat conduction, improving the uniformity of the temperature field distribution on the surface of the sample preparation tube, and further eliminating the radial temperature difference to avoid unintended rupture or data distortion caused by the temperature gradient.

[0020] The application is suitable for heating sample tubes of different lengths by adding mounting plates outside the annular heating plates, and by adding wave-shaped flow guide plates inside the mounting plates when heating longer sample tubes, the wave-shaped flow guide plates are arranged perpendicular to the heat convection direction, the wave crests and wave troughs of the wave-shaped flow guide plates are arranged alternately along the axial direction, the periodic undulating structure breaks the laminar flow state of the fluid, and forces the formation of turbulent vortex, so that the thermal boundary layer thickness is reduced, the heat transfer efficiency is improved, the temperature difference between the tube wall and the core area formed by the two annular heating plates is reduced, and the test precision of the thermal decomposition kinetic parameters is significantly improved, the wave-shaped flow guide plates are used in combination with the spiral ribs, the main vortex driven by the bottom spiral is periodically compressed and stretched by the wave crests and wave troughs of the top wave surface during the rising process, a local pressure gradient is formed, the pressure gradient drives the fluid to accelerate at the wave crest and decelerate at the wave trough, a velocity gradient turbulent flow is generated, at the same time, the wave surface destroys the stability of the vortex, promotes the generation of small-scale vortex, and the wave surface can strengthen the axial turbulence, and the radial-axial mixing of the bottom spiral is complementary, the uniformity of the overall temperature field of the sample tube is improved through the synergistic effect of the two, and the sample tube can be better heated.

[0021] The application sets an air inlet and an air outlet on the top of the detection unit to construct an inert gas dynamic circulation system, before heating, nitrogen rapidly replaces the air in the cavity to reduce the oxygen concentration, during heating, the flow of nitrogen is controlled by adjusting the second valve, so that the low-flow nitrogen continuously maintains the pressure and maintains the positive pressure environment to prevent air from entering, after heating, the nitrogen cools and protects the material residues, avoids high-temperature oxidation, enhances the test precision, avoids the air in the cavity from interfering with the test results and reducing the precision, and the like.

[0022] The application is provided with a test unit for improving the material test precision on the side of the second mounting frame away from the first mounting frame, the test unit is used for stirring and viscosity testing of the material before reaction, the uniformity of the material is ensured by stirring the high-viscosity or easily stratified material, and the viscosity testing can ensure that the viscosity difference of the material in the same batch test is controllable, different viscosity materials are compared, the test groups are divided according to the viscosity range, the control test is independently set for each group, the error caused by cross-group comparison is reduced, and the test precision is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic view of a preferred embodiment of the Kanan tester device provided by the application is shown in the figure; Figure 2 The structure schematic view of the pretreatment unit is shown in the figure; Figure 3 The structure schematic view of the pressing unit is shown in the figure; Figure 4 The structure schematic view of the test unit is shown in the figure; Figure 5 Structure diagram of the first installation frame; Figure 6 Structure diagram of the bottom of the heating assembly; Figure 7 Structure diagram of the top of the heating assembly; Figure 8 Structure diagram of the inside of the annular heating plate; Figure 9 Structure diagram of the mounting plate; Figure 10 Structure diagram of the moving block; Figure 11 Structure diagram of the detection piece; Figure 12 Structure diagram of the detection plate; Figure 13 Structure diagram of the section of the sample preparation tube; Figure 14 Structure diagram of the stirring mechanism.

[0024] Reference numerals in the drawings: 1, first installation frame; 11, operation table; 12, display screen; 13, fixed table; 14, screw rod; 141, hand wheel; 2, second installation frame; 21, first installation box; 22, fixed plate; 221, electric cylinder; 222, connecting column; 223, guide plate; 23, sample preparation hammer; 24, first placement seat; 25, sample preparation tube; 26, material seat; 261, insertion slot; 262, first door plate; 263, temporary storage box; 3, third installation frame; 31, second placement seat; 32, lifting frame; 321, viscometer; 33, stirring box; 331, motor; 332, feeding port; 333, discharging port; 334, first valve; 4, test box; 41, side plate; 411, air inlet; 4111, second valve; 412, air outlet; 413, second door plate; 414, transparent plate; 415, first recess; 42, telescopic rod; 43, connecting plate; 44, sliding plate; 441, installation slot; 442, O-ring; 5, annular heating plate; 51, wire; 52, spiral rib; 53, transverse groove; 531, vertical groove; 532, first limiting groove; 533, second limiting groove; 54, third limiting groove; 55, accommodating cavity; 56, annular heating tube; 6, mounting plate; 61, buckling slot; 62, wave-shaped flow guide plate; 7, moving block; 71, installation block; 72, first fixed block; 73, second fixed block; 74, roller; 8, first detection seat; 81, second detection seat; 82, detection plate; 83, temperature sensor; 84, controller. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the drawings and embodiments.

[0026] Please refer toFigures 1 to 14 wherein, Figure 1 a structural schematic diagram of a preferred embodiment of the Koenen tester device provided by the present application; Figure 2 a structural schematic diagram of the pretreatment unit; Figure 3 a structural schematic diagram of the pressing unit; Figure 4 a structural schematic diagram of the testing unit; Figure 5 a structural schematic diagram of the adjusting assembly; Figure 6 a structural schematic diagram of the bottom of the heating assembly; Figure 7 a structural schematic diagram of the top of the heating assembly; Figure 8 a structural schematic diagram of the inside of the annular heating plate; Figure 9 a structural schematic diagram of the mounting plate; Figure 10 a structural schematic diagram of the moving block; Figure 11 a structural schematic diagram of the detection piece; Figure 12 a structural schematic diagram of the detection plate; Figure 13 a sectional structural schematic diagram of the sample preparation tube; Figure 14 a structural schematic diagram of the stirring mechanism.

[0027] As shown in some embodiments, Figures 1 to 14 including a first mounting frame 1, a second mounting frame 2 located on one side of the first mounting frame 1, and a plurality of sample preparation tubes 25 for placing different materials, the top of the first mounting frame 1 is provided with a detection unit for material combustion detection, the top of the second mounting frame 2 is provided with a pressing assembly for pressing the material, the detection unit is further provided with a plurality of heating assemblies for adapting to different sizes of sample preparation tubes 25 for heating, the plurality of heating assemblies each include two annular heating plates 5 forming a 0 type, the inside of the two annular heating plates 5 is provided with a heating unit, the outside of the two annular heating plates 5 is slidingly provided with a mounting plate 6, the size of the annular heating plate 5 and the mounting plate 6 are matched, the inside of the annular heating plate 5 and the mounting plate 6 are respectively fixed with a spiral fin 52 and a wave-shaped flow guide plate 62, the top of the detection unit is further provided with an air inlet 411 and an air outlet 412 for filling inert gas, the surface of the air inlet 411 and the air outlet 412 is provided with a second valve 4111, and the side of the second mounting frame 2 away from the first mounting frame 1 is further provided with a testing unit for improving the precision of material testing.

[0028] Wherein, the material of the sample preparation tube 25, the annular heating plate 5, the spiral fin 52 and the wave-shaped flow guide plate 62 is stainless steel, and the material of the mounting plate 6 is aluminum alloy.

[0029] The thin-walled design of the sample preparation tube 25, compared with the heating of the existing device, forms an O-shaped surrounding structure with the double-ring heating plate 5, so that the heat is uniformly radiated from the circumference of the sample preparation tube 25, avoiding single-point heating, such as heating from the bottom of the sample preparation tube 25, which causes a significant radial temperature gradient of the sample preparation tube 25, easily causing local overheating or thermal stress concentration, affecting the test results.

[0030] Specifically, by designing the double-ring heating plate 5 to form an O-shaped surrounding structure, the heat is uniformly radiated from the circumference of the sample preparation tube 25, and the spiral ribs 52 inside the ring-shaped heating plate 5 destroy the laminar boundary layer of the inner wall of the sample preparation tube 25. Since the spiral ribs 52 extend spirally along the axial direction, their thermal expansion will cause non-uniform displacement, inducing the formation of a reverse vortex flow perpendicular to the axial direction in the fluid, strengthening the synergistic effect of heat convection and heat conduction, and improving the uniformity of the temperature field distribution on the surface of the sample preparation tube 25, further eliminating the radial temperature difference and avoiding unintended rupture or data distortion caused by temperature gradient.

[0031] Further, by adding the mounting plate 6 outside the ring-shaped heating plate 5, it is suitable for heating sample preparation tubes 25 of different lengths. When heating a longer sample preparation tube 25, a wave-shaped flow guide plate 62 is added inside the mounting plate 6. The direction of the wave-shaped flow guide plate 62 is perpendicular to the direction of heat convection, and the wave crests and troughs of the wave-shaped flow guide plate 62 are arranged alternately along the axial direction. By destroying the laminar flow state through its periodic undulating structure, turbulent vortexes are forced to form, reducing the thickness of the thermal boundary layer and improving the efficiency of heat transfer. The temperature difference between the pipe wall and the core area formed by the ring-shaped heating plate 5 is reduced, significantly improving the testing accuracy of the thermal decomposition kinetic parameters. The wave-shaped flow guide plate 62 is used in combination with the spiral ribs 52. The main vortex driven by the bottom spiral is periodically compressed and stretched by the wave crests and troughs of the wave-shaped surface during its upward movement, forming a local pressure gradient. The pressure gradient drives the fluid to accelerate at the wave crests and decelerate at the wave troughs, generating a velocity gradient turbulent flow. At the same time, the wave-shaped surface destroys the stability of the vortex flow, promotes the generation of small-scale vortices, and the wave-shaped surface can strengthen the axial turbulence, complementing the radial-axial mixing of the bottom spiral. The synergistic effect of the two improves the uniformity of the overall temperature field of the sample preparation tube 25, allowing for better heating of the sample preparation tube 25.

[0032] Further, by setting the gas inlet 411 and the gas outlet 412 on the top of the detection unit, a dynamic inert gas circulation system is constructed. Before heating, nitrogen rapidly replaces the air in the cavity, reducing the oxygen concentration. During heating, the flow of nitrogen is controlled by adjusting the second valve 4111, so that low-flow nitrogen continuously maintains pressure, maintaining a positive pressure environment to prevent air from entering. After heating, nitrogen cools and protects the residual material, avoiding high-temperature oxidation, enhancing the accuracy of the test, avoiding the interference of air in the chamber with the test results, and reducing the accuracy of the test.

[0033] In addition, the test unit for improving the material test precision is arranged on the side of the second mounting frame 2 away from the first mounting frame 1, and the test unit is used for stirring and viscosity test before the material reacts. The stirring of the high-viscosity or easily stratified material ensures the uniformity of the material, and the viscosity test can ensure that the viscosity difference of the material in the same batch test is controllable. By comparing different viscosity materials, the test groups are divided according to the viscosity range, and the control test is independently set for each group, so as to reduce the error caused by cross-group comparison and further improve the precision of the test.

[0034] In some embodiments, reference is made to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the top of the first mounting frame 1 is fixed with an operation unit and a fixing table 13, the operation unit is located on one side of the fixing table 13, and the detection unit is fixed on the top of the fixing table 13.

[0035] The detection unit includes a test box 4, the test box 4 is fixed on the top of the fixing table 13, and one end of the air inlet 411 and the air outlet 412 is fixed on the top of the test box 4, respectively. The influence of air convection in the test box 4 and oxygen on the material can be excluded, the material oxidation can be avoided, the measured data such as thermal decomposition temperature and pressure peak can be closer to the true value, a first groove 415 is formed on the inner side wall of the test box 4, a sliding plate 44 is slidably arranged on the inner side wall of the test box 4, both ends of the sliding plate 44 are slidably arranged on the inner side wall of the first groove 415, a plurality of mounting grooves 441 are formed on the top of the sliding plate 44, a plurality of O-rings 442 are fixed in the plurality of mounting grooves 441, respectively, the bottoms of a plurality of sample preparation tubes 25 are inserted into the plurality of mounting grooves 441, respectively, the inner side of the O-ring 442 is in close contact with the outer side of the sample preparation tube 25, and the first detection seat 8 and the second detection seat 81 are fixed on the inner side wall of the test box 4. The side of the first detection seat 8 and the second detection seat 81 close to the heating assembly is also fixed with a detection plate 82, and the top wall of the test box 4 is fixed with a temperature sensor 83 and a controller 84, respectively.

[0036] The top of the annular heating plate 5 is provided with two horizontal grooves 53, and the outer side of the annular heating plate 5 is provided with two vertical grooves 531. Each horizontal groove 53 is in communication with the top of the corresponding vertical groove 531 at one end, and the horizontal groove 53 and the vertical groove 531 jointly form an L shape. The inner side walls of the horizontal groove 53 and the vertical groove 531 are both provided with a first limiting groove 532, and the bottom walls of the horizontal groove 53 and the vertical groove 531 are both provided with a second limiting groove 533. The end of the horizontal groove 53 away from the vertical groove 531 is also provided with a third limiting groove 54. The outer side of the mounting plate 6 is provided with a buckle groove 61, and the bottom of the mounting plate 6 is fixedly provided with two moving blocks 7. The two ends of the two moving blocks 7 are both fixedly provided with mounting blocks 71. The side of the two mounting blocks 71 close to the spiral pressing piece 52 is fixedly provided with a first fixing block 72. The bottom of the two mounting blocks 71 is fixedly provided with a second fixing block 73. The outer sides of the two first fixing blocks 72 and the two second fixing blocks 73 are both fixedly provided with a plurality of rollers 74. The plurality of rollers 74 respectively slide on the inner walls of the first limiting grooves 532 and the second limiting grooves 533.

[0037] The inside of the arc-shaped heating plate 5 is formed with an independent accommodating cavity 55, and the heating unit is located in the accommodating cavity 55. The heating unit includes a plurality of annular heating pipes 56. The plurality of annular heating pipes 56 are all fixedly arranged in the inside of the accommodating cavity 55, and one end of the annular heating pipe 56 is electrically connected with an external device such as a power supply through the lead wire 51.

[0038] The outer side of the test box 4 is rotationally provided with a second door plate 413. The surface of the second door plate 413 is fixedly provided with a transparent plate 414, which is convenient for observing the test process and improves the convenience and safety of operation.

[0039] The operation unit includes an operation table 11. The operation table 11 is located on one side of the fixing table 13 and is fixedly arranged on the top of the first mounting frame 1. The surface of the operation table 11 is also provided with a display screen 12.

[0040] The material of the O-ring is fluororubber, which has good high-temperature resistance, chemical corrosion resistance, good elasticity and flexibility, and can buffer and protect the sample preparation tube 25. The material is a prior art and will not be described here.

[0041] The heating unit in the heating assembly is a prior art, and the heating principle is a well-known common sense, which will not be described here.

[0042] Specifically, in use, the bottom of the sample preparation tube 25 containing different materials is inserted into the mounting groove 441 on the sliding plate 44, and the O-ring 442 serves as a limit and protection to prevent material leakage and sample preparation tube 25 shaking. At this time, external equipment such as a power supply provides power to the annular heating tube 56 in the annular heating plate 5 through the wire 51. The wire 51 is long enough not to interfere with the subsequent sliding of the sliding plate 44. When the current passes through the resistance wire, such as nickel-chromium alloy, in the annular heating tube 56, the resistance wire generates heat due to the resistance effect. The heat is transferred to the annular heating tube 56 through heat conduction. The annular heating tube 56 generates heat to heat the sample preparation tube 25. The mounting plate 6 can slide in the horizontal groove 53 and vertical groove 531 of the annular heating plate 5 through the bottom moving block 7, mounting block 71, first fixing block 72, second fixing block 73 and roller 74. According to the size of the sample preparation tube 25, it is determined whether the mounting plate 6 needs to be used to ensure uniform heating. At the same time, the spiral ribs 52 on the inside of the annular heating plate 5 and the wave-shaped flow guide plate 62 on the inside of the mounting plate 6 can enhance heat convection and improve heat transfer efficiency. At this time, the temperature sensor 83 monitors the temperature in the test box 4 in real time and transmits the data to the controller 84. The detection plate 82 on the first detection seat 8 and the second detection seat 81 can detect the material. The detection principle, material and structure refer to the detection principle of the material in the authorized announcement No. CN112014427B. The inert gas can be filled into the test box 4 through the air inlet 411 and the air outlet 412 to exclude the influence of air on the detection result. The operator can set the heating parameters, view the detection data, etc. through the display screen 12 on the operation table 11 to realize the control and monitoring of the entire test process. And the transparent plate 414 on the second door plate 413 facilitates the operator to observe the situation in the test box 4.

[0043] Further, the annular heating plate 5 cooperates with the slidable mounting plate 6, and the design of the spiral ribs 52 and the wave-shaped flow guide plate 62 can be adjusted according to the size of the sample preparation tube 25 to enhance heat convection, make the sample preparation tube 25 heat more evenly, reduce local overheating or thermal stress concentration phenomenon, and improve the accuracy of the test result.

[0044] The outside of the test box 4 is fixed with a side plate 41. The bottom of the side plate 41 is fixed with a plurality of telescopic rods 42. The other end of the plurality of telescopic rods 42 is fixed with a connecting plate 43. And the lower part of the test box 4 is also provided with an adjusting assembly for adjusting the height of the sliding plate 22.

[0045] The adjusting assembly comprises a screw rod 14. One end of the screw rod 14 passes through the connecting plate 43, the fixed table 13 and the bottom of the test box 4 in sequence and is rotationally connected with the bottom of the sliding plate 44. And the other end of the screw rod 14 is also fixed with a hand wheel 141.

[0046] Specific, use, rotating hand wheel 141 drive screw 14 rotation, because the screw 14 and connecting plate 43, fixed platform 13 is threaded connection, and connecting plate 43 is limited by telescopic rod 42 horizontal displacement, the rotation of the screw 14 into a vertical linear motion, screw 14 top and slide 44 bottom rotating connection, so the vertical movement of the screw 14 directly drive slide 44 synchronous lifting, in turn, the space of the test box 4 is adjusted, if the test box 4 space becomes smaller, then when heating, will make the test box 4 rapid heating, on the contrary, if the test box 4 space becomes larger, then when heating will make the test box 4 slow heating, telescopic rod 42 through the telescopic compensation slide 44 when the small offset, ensure the stability of movement.

[0047] Some embodiments, reference Figure 1 And Figure 3 As shown in the second mounting bracket 2 of the top fixed with the first installation box 21, the top of the first installation box 21 is fixed with the fixed plate 22, one end of the pressing assembly and the bottom of the fixed plate 22 is fixedly connected.

[0048] Pressing assembly includes electric cylinder 221 and connecting column 222, electric cylinder 221 is fixed at the bottom of the fixed plate 22, the output end of the electric cylinder 221 through the top of the first installation box 21 and with one end of the connecting column 222 fixedly connected, the inner side wall of the first installation box 21 is fixed with the guide plate 223, the other end of the connecting column 222 is fixed with the sample hammer 23, the bottom of the sample hammer 23 through the surface of the guide plate 23 and extends to the directly below the guide plate 23, the outer side of the sample hammer 23 slides on the surface of the guide plate 23, the bottom wall of the first installation box 21 is also fixed with the first placement seat 24 for placing the sample tube 25, and the sample hammer 23 is located directly above the first placement seat 24.

[0049] The inner side wall of the first installation box 21 is also fixed with the material seat 26, one side of the material seat 26 has a slot 261, one side of the material seat 26 is rotatably provided with a first door plate 262 for opening or closing the slot 261, the slot 261 is inserted with a temporary storage box 263 for temporarily storing materials, which improves the applicability of the device.

[0050] Among them, the guide plate 223: horizontally fixed to the inner side wall of the first installation box 21, the central opening is provided with a guide hole, the sample hammer 23 passes through the guide hole and is slidably connected with the guide hole, the guide hole is embedded with a linear bearing or a wear-resistant sleeve, such as polytetrafluoroethylene, which reduces friction and eliminates radial deviation; The sample hammer 23: is a cylindrical metal hammer, the bottom is inlaid with tungsten steel to improve the wear resistance.

[0051] Specifically, for solid materials, a sample preparation hammer 23 is used. Before use, the electric cylinder 221 is in the retracted position, and the bottom of the sample preparation hammer 23 maintains a safe distance from the top of the sample preparation tube 25. During use, after the controller inside the electric cylinder 221 receives the instruction, the output end of the electric cylinder 221 extends, pushing the connecting column 222 and the sample preparation hammer 23 to move vertically downward. The bottom of the sample preparation hammer 23 contacts the material in the sample preparation tube 25, applies a preset pressure, and maintains it for a set time to complete the material compaction or molding. When storing the material, put the material into the temporary storage box 263, open the first door plate 262, insert the temporary storage box 263 into the slot 261, and close the door plate 262. When retrieving the material, reverse the operation of the door plate 262, pull out the temporary storage box 263, and take out the material in the box according to the test requirements.

[0052] In some embodiments, reference is made to Figure 1 , Figure 2 as well as Figure 14 As shown, the test unit includes a stirring mechanism and a viscosity test component. A third mounting frame 3 is placed on the side of the second mounting frame 2 away from the first mounting frame 1. The stirring mechanism and the viscosity test component are both fixed on the top of the third mounting frame 3, and the stirring mechanism is located on one side of the viscosity test component.

[0053] The viscosity testing assembly includes a lifting frame 32 and a viscometer 321 fixed to the movable end of the lifting frame 32. The bottom of the lifting frame 32 is fixed to the top of the third mounting frame 3. The top of the third mounting frame 3 is also fixed with a second placement seat 31 for placing the sample tube 25. The second placement seat 31 is located directly below the viscometer 321.

[0054] The stirring mechanism includes a stirring box 33, which is located on one side of the viscometer 321. The stirring box 33 is fixed on the top of the third mounting bracket 3. A motor 331 is fixed on the top of the stirring box 33. A stirring rod is fixed on the output end of the motor 331. The bottom of the stirring rod passes through the top of the stirring box 33 and is surrounded by multiple stirring blades. All the stirring blades are located inside the stirring box 33. A feed inlet 332 is also fixed on the top of the stirring box 33, which is located on one side of the motor 331. A discharge outlet 333 is also fixed on the bottom of the stirring box 33. The discharge outlet 333 is connected to the box body by a thread for easy cleaning. A first valve 334 is also provided on the surface of the discharge outlet 333.

[0055] The lifting frame 32 is vertically fixed to the top of the third mounting frame 3 and includes a telescopic plate and a limit knob fixed on the telescopic plate. The height of the viscometer 312 can be adjusted by manually turning the limit knob.

[0056] Viscometer 312 is preferably an STM-IV or KU-2 series digital Stormer viscometer.

[0057] Second placing seat 31: fixed on the top of the third mounting frame 3, using a circular positioning groove, embedded silica gel pad, used for fixing the sample tube 25 and absorbing vibration.

[0058] Specifically, for material stirring: in use, open the dust cover on the surface of the feeding port 332 manually, pour the material to be tested, such as powder, liquid or paste, into the stirring box 33, close the dust cover, drive the motor 331, start stirring, and the rotation of the stirring blade generates shear force and convection, so that the material is dispersed. High-viscosity materials can be fully mixed by increasing the rotation speed or prolonging the stirring time. After stirring is completed, the motor 331 is turned off, the first valve 334 is opened, and the mixed material flows into the sample tube 25 or the intermediate container through the discharge port 333.

[0059] For viscosity testing: in use, place the sample tube 25 containing the mixed material in the second placing seat 31, drive the viscometer 321 vertically downward by the lifting frame 32, immerse the rotor of the viscometer 312 into the material to a preset depth, start the viscometer 321, and the rotor rotates at a set speed, such as 60 rpm. The sensor collects torque signals in real time and converts them into viscosity values. The data is displayed on the display screen on the surface of the viscometer 321. After the test is completed, the lifting frame 32 lifts the viscometer 321, the sample tube 25 is taken out, and the test data is saved.

[0060] Further, the stirring and viscosity testing functions are integrated in the third mounting frame 3, reducing the material transfer link and avoiding manual operation pollution. Stirring can ensure the uniformity of the material. If different viscosity materials need to be compared, the materials can be classified according to the viscosity characteristics according to the measurement results of the viscometer 312, such as low-viscosity group and medium-viscosity group, to avoid the large viscosity difference between the groups when comparing the performance of the materials.

[0061] The circuits and controls involved in the present application are prior art and will not be described in detail here.

[0062] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the contents of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A Kronen testing apparatus, comprising a first mounting frame (1), a second mounting frame (2) located on one side of the first mounting frame (1), and a plurality of sample tubes (25), wherein the plurality of sample tubes (25) are used to place different materials, the top of the first mounting frame (1) is provided with a detection unit for detecting the combustion of materials, and the top of the second mounting frame (2) is provided with a pressing component for pressing materials, characterized in that, The detection unit is also equipped with multiple heating components for heating sample tubes (25) of different sizes. Each heating component includes two annular heating plates (5), which form an O-shape. Each annular heating plate (5) has a heating unit inside. Each annular heating plate (5) has a mounting plate (6) slidably mounted on its outer side. The size of the annular heating plate (5) matches that of the mounting plate (6). The annular heating plate (5) and the mounting plate (6) are respectively fixed with spiral ribs (52) and wave-shaped guide plates (62) on their inner sides. The top of the detection unit is also equipped with an inlet (411) and an outlet (412) for filling inert gas. The surfaces of the inlet (411) and the outlet (412) are equipped with second valves (4111). The second mounting frame (2) is also equipped with a test unit for improving the accuracy of material testing on the side away from the first mounting frame (1).

2. The Kronospan testing apparatus according to claim 1, characterized in that, The first mounting bracket (1) has an operating unit and a fixed platform (13) fixed on its top. The operating unit is located on one side of the fixed platform (13), and the detection unit is fixed on the top of the fixed platform (13). The detection unit includes a test box (4), which is fixed to the top of the fixed platform (13). One end of the air inlet (411) and the air outlet (412) are respectively fixed to the top of the test box (4). A first groove (415) is provided on the inner side wall of the test box (4). A sliding plate (44) slides on the inner side wall of the test box (4). Both ends of the sliding plate (44) slide on the inner side wall of the first groove (415). A plurality of mounting slots (441) are provided on the top of the sliding plate (44). 1) Each of the O-rings (442) is fixed inside. The bottom of the multiple sample tubes (25) is respectively inserted into the multiple mounting slots (441). The inner side of the O-ring (442) is in contact with the outer side of the sample tube (25). The inner side wall of the test box (4) is also fixed with a first detection seat (8) and a second detection seat (81). The first detection seat (8) and the second detection seat (81) are also fixed with a detection plate (82) on the side of the heating component. The top wall of the test box (4) is fixed with a temperature sensor (83) and a controller (84).

3. The Kronospan testing apparatus according to claim 2, characterized in that, The top of the annular heating plate (5) has two horizontal grooves (53), and the outer side of the annular heating plate (5) has two vertical grooves (531). One end of each horizontal groove (53) is connected to the top of the corresponding vertical groove (531). The horizontal grooves (53) and the vertical grooves (531) together form an L-shape. The inner sidewalls of the horizontal grooves (53) and the vertical grooves (531) are provided with first limiting grooves (532). The bottom walls of the horizontal grooves (53) and the vertical grooves (531) are provided with second limiting grooves (533). The end of the horizontal groove (53) away from the vertical groove (531) is also provided with a third limiting groove (54). The installation A snap-fit ​​groove (61) is provided on the outer side of the plate (6). Two movable blocks (7) are fixed at the bottom of the mounting plate (6). Mounting blocks (71) are fixed at both ends of the two movable blocks (7). A first fixing block (72) is fixed on the side of the two mounting blocks (71) near the spiral tab (52). A second fixing block (73) is fixed at the bottom of the two mounting blocks (71). Multiple rollers (74) are fixed on the outer side of the two first fixing blocks (72) and the two second fixing blocks (73). The multiple rollers (74) slide on the inner wall of the first limiting groove (532) and the second limiting groove (533), respectively.

4. The Kronospan testing apparatus according to claim 3, characterized in that, The arc-shaped heating plate (5) has an independent receiving cavity (55) inside. The heating unit is located inside the receiving cavity (55). The heating unit includes multiple annular heating tubes (56). The multiple annular heating tubes (56) are all fixed inside the receiving cavity (55), and one end of the annular heating tubes (56) is electrically connected to an external device through a wire (51).

5. The Kronospan testing apparatus according to claim 4, characterized in that, The top of the second mounting bracket (2) is fixed with a first mounting box (21), and the top of the first mounting box (21) is fixed with a fixing plate (22). One end of the pressing component is fixedly connected to the bottom of the fixing plate (22). The pressing assembly includes an electric cylinder (221) and a connecting column (222). The electric cylinder (221) is fixed to the bottom of the fixed plate (22). The output end of the electric cylinder (221) passes through the top of the first mounting box (21) and is fixedly connected to one end of the connecting column (222). A guide plate (223) is fixed on the inner side wall of the first mounting box (21). A sample preparation hammer (23) is fixed to the other end of the connecting column (222). The bottom of the sample preparation hammer (23) passes through the surface of the guide plate (23) and extends to the bottom of the guide plate (23). The outer side of the sample preparation hammer (23) slides on the surface of the guide plate (23). A first placement seat (24) for placing a sample tube (25) is also fixed to the bottom wall of the first mounting box (21), and the sample preparation hammer (23) is located directly above the first placement seat (24).

6. The Kronospan testing apparatus according to claim 5, characterized in that, A material base (26) is also fixed on the inner wall of the first mounting box (21). A slot (261) is provided on one side of the material base (26). A first door plate (262) for opening or closing the slot (261) is rotatably provided on one side of the material base (26). A temporary storage box (263) for temporarily storing materials is inserted in the slot (261).

7. The Kronospan testing apparatus according to claim 6, characterized in that, The test unit includes a stirring mechanism and a viscosity test component. A third mounting frame (3) is also placed on the side of the second mounting frame (2) away from the first mounting frame (1). The stirring mechanism and the viscosity test component are both fixed on the top of the third mounting frame (3). The stirring mechanism is located on one side of the viscosity test component. The viscosity testing assembly includes a lifting frame (32) and a viscometer (321) fixed to the movable end of the lifting frame (32). The bottom of the lifting frame (32) is fixed to the top of the third mounting frame (3). The top of the third mounting frame (3) is also fixed with a second placement seat (31) for placing a sample tube (25). The second placement seat (31) is located directly below the viscometer (321).

8. The Kronospan testing apparatus according to claim 7, characterized in that, The stirring mechanism includes a stirring tank (33), which is located on one side of the viscometer (321). The stirring tank (33) is fixed on the top of the third mounting bracket (3). A motor (331) is fixed on the top of the stirring tank (33). A stirring rod is fixed at the output end of the motor (331). The bottom of the stirring rod passes through the top of the stirring tank (33) and is surrounded by multiple stirring blades. The multiple stirring blades are located inside the stirring tank (33). A feed inlet (332) is also fixed on the top of the stirring tank (33). The feed inlet (332) is located on one side of the motor (331). A discharge outlet (333) is also fixed on the bottom of the stirring tank (33). A first valve (334) is also provided on the surface of the discharge outlet (333).

9. The Kronospan testing apparatus according to claim 8, characterized in that, The test box (4) is fixed with a side plate (41) on the outside, and a plurality of telescopic rods (42) are fixed at the bottom of the side plate (41). A connecting plate (43) is fixed at the other end of the plurality of telescopic rods (42). An adjustment component for adjusting the height of the slide plate (22) is also provided below the test box (4). The adjustment assembly includes a screw (14), one end of which passes through the bottom of the connecting plate (43), the fixed platform (13) and the test box (4) in sequence and is rotatably connected to the bottom of the slide plate (44), and the other end of the screw (14) is also fixed with a handwheel (141).

10. The Kronospan testing apparatus according to claim 9, characterized in that, The test box (4) is rotatably provided with a second door panel (413), and a transparent plate (414) is fixed on the surface of the second door panel (413). The operating unit includes an operating table (11), which is located on one side of the fixed platform (13). The operating table (11) is fixed to the top of the first mounting bracket (1), and the surface of the operating table (11) is also provided with a display screen (12).

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