Device for testing ultimate bearing capacity of phenolic resin fast-growing poplar plywood and method

Abstract

Provided are a device for testing the ultimate bearing capacity of a phenolic resin fast-growing poplar plywood and a method. The test device comprises a workbench (1), a housing (2) being fixedly mounted at the top of the workbench (1). When the humidity in the device needs to be increased and the temperature therein needs to be increased or decreased, water is added into a box body (40); then, under the mutual cooperation of a cooling device (44), a cooling pipe (45), a circulation pump (46), a power supply (47) and a heating pipe (48), the water inside the box body (40) is heated or cooled; and then, under the interaction of structures such as a water pump (49), a water conveying pipe (38) and a communication pipe (30), the water inside the box body (40) is pumped out and conveyed into the device. When the humidity in the device needs to be reduced and the temperature therein needs to be increased or decreased, the water inside the box body (40) is discharged; air inside the box body (40) is heated or cooled; and then, under the interaction of structures such as an air pump (52), a connecting pipe (51), a dehumidification box (50), a dehumidification filter plate (53), and an air supply pipe (37), the air inside the box body (40) is supplied into the device, so as to regulate the temperature or humidity in the device, thereby improving the accuracy and comprehensiveness of test results.

Description

Phenolic resin fast-growing poplar glued wood board ultimate bearing capacity testing device and method TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing capacity testing device, in particular to a phenolic resin fast-growing poplar glued wood board ultimate bearing capacity testing device and method. BACKGROUND

[0002] In response to the "double carbon" goal and to achieve green and low-carbon development, China advocates the development of wood structure buildings, and the development of wood structure to high-rise buildings. Currently, the wood structure mainly used is glued wood structure, which has a short construction period, is renewable and comfortable to live in. Wood is light in weight and high in strength, and has good seismic performance. Compared with light steel structure and reinforced concrete structure, the carbon emissions of wood structure in the building life cycle are the least. Fast-growing poplar, as a renewable material, is very abundant and meets the requirements of low-carbon economy and circular economy. Fast-growing poplar has the advantages of fast growth, straight trunk, fewer knots, and high yield, but also has the defects of soft wood fiber material, large variability, easy corrosion, and low strength. Fast-growing poplar glued wood, which is made by gluing fast-growing poplar veneers, can significantly improve its mechanical properties, increase its bearing capacity, and improve its deformation capacity. Phenolic resin fast-growing poplar glued wood material, which is made of fast-growing poplar boards as raw materials and glued with adhesives, is a potential wood structure building material. However, its bearing capacity needs to be tested and researched by a bearing capacity testing device to determine whether it meets the requirements of building materials.

[0003] In the prior art, when testing the phenolic resin fast-growing poplar glued wood board by the bearing capacity testing device, the glued wood board is directly placed in the testing device for testing. Since the testing device has a simple structure, the temperature and humidity inside the device cannot be adjusted when testing the glued wood board, which affects the test results of the glued wood board due to environmental factors, thereby reducing the accuracy of the glued wood board testing structure and making it difficult to test the glued wood board under different temperature and humidity environments, thereby affecting the comprehensiveness of the test results and the practicality of the testing device.

[0004] SUMMARY

[0005] The present application aims to provide a phenolic resin fast-growing poplar glued wood board ultimate bearing capacity testing device and method to solve the problem of not being able to adjust the temperature and humidity inside the device when testing the glued wood board, which affects the test results of the glued wood board due to environmental factors.

[0006] In order to achieve the above object, the present application provides the following technical scheme: phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device, including workbench, the top of the workbench is fixedly installed with the shell, the inner wall of the shell is fixedly installed with two temperature sensors, the inner wall of the shell is fixedly installed with two humidity sensors, the outer wall of the shell is provided with a mounting groove, the inner wall of the mounting groove is movably inserted with a communication pipe, the outer wall of the communication pipe is fixedly sleeved with a transmission wheel, the outer wall of the shell is fixedly installed with two limit blocks, the inner wall of the two limit blocks is movably inserted with a gear row, and the outer wall of the gear row is meshed with the outer wall of the transmission wheel, the inner wall of the gear row is movably connected with a connecting rod, the outer wall of the shell is fixedly installed with a third motor, the output end of the third motor is fixedly sleeved with an eccentric wheel, and the outer wall of the eccentric wheel is movably connected with the inner wall of the connecting rod, the outer wall of the communication pipe is fixedly communicated with a gas pipe, the outer wall of the communication pipe is fixedly communicated with a water pipe, the inner wall of the water pipe and the gas pipe is provided with a valve, and the inner wall of the workbench is fixedly installed with a box.

[0007] Preferably, the top of the box is fixedly installed with a top cover, the inner wall of the top cover is provided with a movable cover, the top of the top cover is provided with a water inlet, the top of the top cover is fixedly installed with a cooling device, the outer wall of the cooling device is provided with a cooling pipe, and the cooling pipe is arranged in the box, the top of the top cover is fixedly installed with a circulating pump, and the outer wall of the cooling pipe is provided with a circulating pump, the top of the top cover is fixedly installed with a power supply, the outer wall of the power supply is provided with a heating pipe, and the heating pipe is arranged in the box, the inner wall of the workbench is fixedly installed with a water pump, the water or air in the box can be cooled by the cooperation of the cooling device, the cooling pipe and the circulating pump, and the water or air in the box can be heated by the interaction of the power supply and the heating pipe.

[0008] Preferably, the water pump and the outer wall of the box are connected by a pipeline, and the outer wall of the water pump is fixedly communicated with the outer wall of the water pipe, the inner wall of the workbench is fixedly installed with a dehumidification box, and the outer wall of the dehumidification box is fixedly communicated with the outer wall of the gas pipe, the inner wall of the dehumidification box is provided with a plurality of dehumidification filter plates, the outer wall of the dehumidification box is fixedly communicated with a connecting pipe, the inner wall of the workbench is fixedly installed with a gas pump, the gas pump and the outer wall of the box are connected by a pipeline, and the outer wall of the gas pump is fixedly communicated with the outer wall of the connecting pipe, under the action of the water pump, the water in the box can be pumped out after heating or cooling, under the action of the gas pump, the air in the box can be pumped out after heating or cooling and sent into the dehumidification box, under the action of the dehumidification filter plate, the moisture in the air is removed to reduce the humidity in the air, and finally the air enters the equipment through the gas pipe.

[0009] Preferably, the outer wall of the shell is provided with two side covers, the inner wall of the shell is provided with a movable plate, the top of the shell is fixedly installed with a first telescopic rod, the telescopic end of the first telescopic rod is fixedly connected with one side of the outer wall of the movable plate, one side of the outer wall of the shell is provided with a display screen, one side of the outer wall of the shell is provided with an operation table, the top of the workbench is provided with two groups of movable grooves, the inner walls of the two groups of movable grooves are movably embedded with movable racks, the inner walls of the two movable racks are movably embedded with supporting wheels, and a bidirectional screw rod is movably inserted between the inner walls of the two movable racks. The display screen can display the running status of the equipment and the data of the wood board, and the equipment can be controlled through the operation table according to the displayed data.

[0010] Preferably, the outer wall of the bidirectional screw rod is fixedly sleeved with a first gear, the outer wall of the workbench is fixedly installed with a first motor, the output end of the first motor is fixedly sleeved with a second gear, and the outer wall of the second gear is meshed and connected with the outer wall of the first gear. The first motor can be used as a power output, and under the action of the first gear and the second gear, the bidirectional screw rod is driven to rotate.

[0011] Preferably, the inner wall of the shell is fixedly installed with a mounting box at the top, the outer wall of the mounting box is fixedly installed with an infrared range finder on one side, and the inner wall of the mounting box is movably inserted with a mounting rack. The infrared range finder can measure the moving distance of the mounting rack in real time.

[0012] Preferably, the top of the mounting rack is fixedly installed with a second telescopic rod, one side of the outer wall of the second telescopic rod is fixedly connected with one side of the inner wall of the mounting box, and the bottom of the mounting rack is fixedly installed with a mounting plate. The second telescopic rod can drive the mounting rack to move inside the mounting box.

[0013] Preferably, the top of the mounting plate is fixedly installed with an ultrasonic detection device, and the probe of the ultrasonic detection device penetrates the mounting plate. The outer wall of the mounting plate is fixedly installed with two visual sensors, the inner walls of the mounting plate are movably embedded with two groups of movable blocks, a bidirectional threaded rod is movably inserted between the inner walls of the two groups of movable blocks, the outer wall of the mounting plate is fixedly installed with a second motor, and the output end of the second motor is fixedly connected with the outer wall of the bidirectional threaded rod. Through the action of the ultrasonic detection device, the inside of the wood board can be detected to determine whether the wood board is damaged or broken. The second motor can be used as a power output to drive the bidirectional threaded rod to rotate.

[0014] Preferably, the inner walls of the two groups of movable blocks are fixedly installed with a group of pressure sensors, the inner walls of the two groups of movable blocks are provided with a pressing plate, and one side of the outer wall of the pressure sensor is in contact with one side of the outer wall of the pressing plate. The pressure received by the pressing plate can be detected by the pressure sensor to detect the pressure received by the wood board.

[0015] The use method of the phenolic resin fast-growing poplar plywood ultimate bearing capacity test device comprises the following steps:

[0016] S1, when the test device detects the bearing capacity of the phenolic resin fast-growing poplar plywood, first, under the action of the first motor, drive the second gear to rotate, at the same time, under the action of the second gear, drive the bidirectional lead screw to rotate, so as to drive the movable frame to move inside the movable groove, adjust the support wheel to the appropriate position, and move the support wheel inside the movable frame to further adjust the position of the support wheel, then under the operation of the staff, place the plywood on the top of the support wheel, then under the action of the second telescopic rod, drive the mounting frame to move downward to the appropriate position inside the mounting box, and drive the mounting plate, visual sensor and ultrasonic detection device to the appropriate position, then under the action of the ultrasonic detection device, detect the plywood and transmit the result to the display screen for display, so as to judge whether the plywood has been damaged, if the plywood is damaged, it needs to be replaced, if there is no damage, the subsequent test can be carried out, close the side cover, then under the action of the temperature sensor and humidity sensor, detect the temperature and humidity inside the equipment and transmit them to the display screen for display;

[0017] S2, when the humidity inside the equipment is low, under the operation of the staff, water is injected into the box body from the water injection port, when the temperature inside the equipment is too high, after the box body is filled with water, under the action of the cooling device, circulating pump and cooling pipe, the water inside the box body is cooled, when the water inside the box body is cooled, under the action of the water pump, the water inside the box body is pumped out and sprayed from the replaced atomizing nozzle through the water conveying pipe and the communication pipe, to humidify and cool the inside of the equipment, at the same time, under the action of the third motor, drive the eccentric wheel to rotate, at the same time, under the action of the connecting rod and the limiting block, drive the gear rack to reciprocate, and under the action of the transmission wheel, drive the communication pipe and the replaced atomizing nozzle to reciprocate, so that the water mist sprayed inside the equipment is more uniform, when it is needed to heat the inside of the equipment, after water is sent into the box body from the water injection port, under the action of the power supply and the heating pipe, the water inside the box body is heated, and the above structure and method are sent into the equipment, to humidify and heat the inside of the equipment;

[0018] S3, when the humidity and temperature inside the device need to be reduced, under the operation of the worker, the water inside the box is sucked out from the water injection port and the movable cover is opened, then under the cooperation of the circulating pump, the cooling device and the cooling pipe, the air inside the box can be cooled, then under the action of the air pump, the cold air inside the box is sucked out and enters the dehumidifying box through the connecting pipe, under the action of the dehumidifying filter plate installed in the dehumidifying box, the moisture in the air is adsorbed, then the air is sprayed out from the replaced spray head through the air conveying pipe and the communication pipe, and under the action of the third motor, the eccentric wheel and the communication rod, the air entering the device is more uniform, when the humidity inside the device needs to be reduced and the temperature needs to be increased, the air inside the box can be heated through the power supply and the heating pipe, and the heated air is sent to the device through the above structure, so that the humidity inside the device is reduced and the temperature inside the device is increased;

[0019] S4, when the temperature and humidity inside the device are adjusted, the size of the slot opened on the top of the shell can be adjusted through the first telescopic rod and the movable plate, the adjustment effect of the temperature and humidity inside the device is improved, when the temperature and humidity inside the device are adjusted, under the action of the second telescopic rod, the mounting frame moves downward in the mounting box, the mounting plate and the pressing plate move downward to press and bend the plywood, under the action of the pressure sensor, the pressure received by the plywood is detected in real time and transmitted to the display screen for display, at the same time, under the action of the infrared range finder, the distance moved by the mounting frame is detected and transmitted to the display screen for display, so that the pressure received by the plywood can be detected, the plywood is pressed and bent at the same time, under the action of the visual sensor and the ultrasonic detection device, the plywood is detected and the data is transmitted to the display screen for display, so that whether the plywood is damaged or not can be judged, and the bearing capacity of the phenolic resin fast-growing poplar plywood can be obtained, and the test is completed.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1、In use, through the action of a series of components, when the temperature or humidity inside the device needs to be adjusted, first determine whether to add water to the box according to the needs, when the device needs to be humidified, add water to the box, then cooperate with the cooling device, cooling pipe, circulating pump, power supply and heating pipe, the water in the box can be heated or cooled, then the water in the box can be pumped out and sent into the device under the action of the water pump, water pipe, communication pipe and other structures, so as to humidify and cool or heat the device, when the humidity inside the device needs to be reduced, the water in the box is discharged, and the air inside the box is heated or cooled, then under the action of the air pump, connecting pipe, dehumidification box, dehumidification filter plate, air pipe and other structures, the humidity inside the device can be reduced, and the device can be heated or cooled, through the above method, the temperature or humidity inside the device can be adjusted, the phenolic resin fast-growing poplar plywood is not easily affected by the environment during testing, the accuracy and comprehensiveness of the test results are improved, and the practicality of the testing device is greatly improved;

[0022] 2、In use, through the action of a series of components, when the load-bearing capacity of the phenolic resin fast-growing poplar plywood needs to be detected, first place the wood board in the appropriate position, then under the action of the ultrasonic detection device, the wood board generates ultrasonic waves and recovers, and after processing, the data is transmitted to the display screen for display, so as to judge whether the wood board is damaged or broken, avoid testing the wood board that has been damaged, and improve the accuracy of the test results;

[0023] 3、In use, through the action of a series of components, when the load-bearing capacity of the phenolic resin fast-growing poplar plywood needs to be detected, first drive the supporting wheel to move under the cooperation of the first motor, first gear, second gear, bidirectional screw rod and movable frame, adjust the supporting wheel to the appropriate position, and under the action of the second motor and bidirectional screw rod, drive the movable block, pressure sensor and pressing plate to the appropriate position, so that they can be adjusted according to the size of the wood board, and improve the practicability;

[0024] 4、In use, through the action of a series of components, during the load-bearing capacity detection of the phenolic resin fast-growing poplar plywood, the state of the wood board can be detected in real time and transmitted to the display screen for display under the action of the visual sensor and display screen, so that the worker can observe more clearly, and under the action of the shell and side cover, the wood board can be prevented from breaking and the debris can be prevented from splashing during detection, thereby protecting the worker and avoiding injury to the worker. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0026] Fig. 2 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0027] Fig. 3 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0028] Fig. 4 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0029] Fig. 5 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0030] Fig. 6 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0031] Fig. 7 is an enlarged view of structure A of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application;

[0032] Fig. 8 is a front view of the structure of the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device according to the present application.

[0033] In the drawings: 1, workbench; 2, outer shell; 3, side cover; 4, movable plate; 5, first telescopic rod; 6, display screen; 7, operation table; 8, temperature sensor; 9, humidity sensor; 10, movable groove; 11, movable frame; 12, supporting wheel; 13, bidirectional screw rod; 14, first gear; 15, first motor; 16, second gear; 17, mounting box; 18, infrared distance meter; 19, mounting frame; 20, second telescopic rod; 21, mounting plate; 22, ultrasonic detection device; 23, visual sensor; 24, movable block; 25, bidirectional threaded rod; 26, second motor; 27, pressure sensor; 28, pressing plate; 29, mounting groove; 30, communication pipe; 31, transmission wheel; 32, limiting block; 33, gear row; 34, linkage rod; 35, eccentric wheel; 36, third motor; 37, gas conveying pipe; 38, water conveying pipe; 39, valve; 40, box body; 41, top cover; 42, movable cover; 43, water inlet; 44, cooling device; 45, cooling pipe; 46, circulating pump; 47, power supply; 48, heating pipe; 49, water pump; 50, dehumidification box; 51, connecting pipe; 52, air pump; 53, dehumidification filter plate. DETAILED DESCRIPTION

[0034] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0035] Referring to FIGS. 1-8, the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device includes a workbench 1, a shell 2 is fixedly installed on the top of the workbench 1, two temperature sensors 8 are fixedly installed on the inner surface wall of the shell 2, two humidity sensors 9 are fixedly installed on the inner surface wall of the shell 2, an installation groove 29 is formed on one side of the outer wall of the shell 2, a communication pipe 30 is movably inserted into the inner surface wall of the installation groove 29, a transmission wheel 31 is fixedly sleeved on the outer surface wall of the communication pipe 30, two limiting blocks 32 are fixedly installed on one side of the outer wall of the shell 2, a gear rack 33 is movably inserted between the inner surface walls of the two limiting blocks 32, one side of the outer wall of the gear rack 33 is meshingly connected with the outer surface wall of the transmission wheel 31, a connecting rod 34 is movably connected with the inner surface wall of the gear rack 33, a third motor 36 is fixedly installed on one side of the outer wall of the shell 2, an eccentric wheel 35 is fixedly sleeved on the output end of the third motor 36, and the outer surface wall of the eccentric wheel 35 is movably connected with the inner surface wall of the connecting rod 34, a gas conveying pipe 37 is fixedly connected with the outer surface wall of the communication pipe 30, a water conveying pipe 38 is fixedly connected with the outer surface wall of the communication pipe 30, valves 39 are arranged on the inner surface walls of the water conveying pipe 38 and the gas conveying pipe 37, and a box body 40 is fixedly installed on the inner wall bottom of the workbench 1.

[0036] As shown in FIG. 8, a top cover 41 is fixedly installed on the top of the box body 40, the inner surface wall of the top cover 41 is provided with a movable cover 42, a water inlet 43 is arranged on the top of the top cover 41, a cooling device 44 is fixedly installed on the top of the top cover 41, a cooling pipe 45 is arranged on the outer surface wall of the cooling device 44 and in the interior of the box body 40, a circulating pump 46 is fixedly installed on the top of the top cover 41 and on the outer surface wall of the cooling pipe 45, a power supply 47 is fixedly installed on the top of the top cover 41, a heating pipe 48 is arranged on the outer surface wall of the power supply 47 and in the interior of the box body 40, a water pump 49 is fixedly installed on the inner surface wall of the workbench 1, the water or air in the interior of the box body 40 can be cooled by the cooperation of the cooling device 44, the cooling pipe 45 and the circulating pump 46, and the water or air in the interior of the box body 40 can be heated by the cooperation of the power supply 47 and the heating pipe 48.

[0037] As shown in Figure 8, the water pump 49 is connected to the outer wall of the box 40 through the pipeline, and the outer wall of the water pump 49 is fixedly connected to the outer wall of the water pipe 38, the inner wall of the workbench 1 is fixedly installed with a dehumidification box 50, and the outer wall of the dehumidification box 50 is fixedly connected to the outer wall of the air pipe 37, the inner wall of the dehumidification box 50 is provided with a plurality of dehumidification filter plates 53, and the outer wall of the dehumidification box 50 is fixedly connected to the connecting pipe 51, the inner wall of the workbench 1 is fixedly installed with a gas pump 52, the gas pump 52 is connected to the outer wall of the box 40 through the pipeline, and the outer wall of the gas pump 52 is fixedly connected to the outer wall of the connecting pipe 51, under the action of the water pump 49, the water in the box 40 can be pumped out, under the action of the gas pump 52, the air in the box 40 can be pumped out and sent into the dehumidification box 50, under the action of the dehumidification filter plate 53, the moisture in the air is removed to reduce the humidity in the air, and finally enters the equipment through the air pipe 37.

[0038] As shown in Figures 1-4, the outer wall of the shell 2 is provided with two side covers 3, the inner wall of the shell 2 is provided with a movable plate 4, the top of the shell 2 is fixedly installed with a first telescopic rod 5, and the telescopic end of the first telescopic rod 5 is fixedly connected to the outer wall of the movable plate 4, the outer wall of the shell 2 is provided with a display screen 6, the outer wall of the shell 2 is provided with an operation platform 7, the top of the workbench 1 is provided with two groups of movable grooves 10, the inner walls of the two groups of movable grooves 10 are movably embedded with movable racks 11, the inner walls of the two movable racks 11 are movably embedded with supporting wheels 12, and the inner walls of the two movable racks 11 are movably inserted with a bidirectional screw rod 13, the display screen 6 can display the running status of the equipment and the data of the wood board, and the equipment can be controlled according to the displayed data through the operation platform 7.

[0039] As shown in Figure 4, the outer wall of the bidirectional screw rod 13 is fixedly sleeved with a first gear 14, the outer wall of the workbench 1 is fixedly installed with a first motor 15, the output end of the first motor 15 is fixedly sleeved with a second gear 16, and the outer wall of the second gear 16 is meshed and connected with the outer wall of the first gear 14, the first motor 15 can be used as a power output, and under the action of the first gear 4 and the second gear 16, the bidirectional screw rod 13 is driven to rotate.

[0040] As shown in Figures 2-5, the inner wall of the shell 2 is fixedly installed with a mounting box 17, the outer wall of the mounting box 17 is fixedly installed with an infrared range finder 18, the inner wall of the mounting box 17 is movably inserted with a mounting rack 19, and the infrared range finder 18 can measure the moving distance of the mounting rack 19 in real time.

[0041] As shown in Figure 5, the top of the mounting frame 19 is fixedly installed with a second telescopic rod 20, and the outer wall of the second telescopic rod 20 is fixedly connected with the inner wall of the mounting box 17, the bottom of the mounting frame 19 is fixedly installed with a mounting plate 21, and the second telescopic rod 20 can drive the mounting frame 19 to move inside the mounting box 17.

[0042] As shown in Figure 5, the top of the mounting plate 21 is fixedly installed with an ultrasonic detection device 22, and the probe of the ultrasonic detection device 22 penetrates through the mounting plate 21, the outer wall of the mounting plate 21 is fixedly installed with two visual sensors 23, the inner wall of the mounting plate 21 is movably embedded with two groups of movable blocks 24, the inner wall between the two groups of movable blocks 24 is movably inserted with a bidirectional threaded rod 25, the outer wall of the mounting plate 21 is fixedly installed with a second motor 26, and the output end of the second motor 26 is fixedly connected with the outer wall of the bidirectional threaded rod 25, under the action of the ultrasonic detection device 22, the inside of the wood plate can be detected to determine whether the wood plate is damaged or broken, and the second motor 26 can be used as a power output to drive the bidirectional threaded rod 25 to rotate.

[0043] As shown in Figure 5, the inner wall of the two groups of movable blocks 24 is fixedly installed with a group of pressure sensors 27, and the inner wall between the two groups of movable blocks 24 is provided with a pressing plate 28, and the outer wall of the pressure sensor 27 is in contact with the outer wall of the pressing plate 28, the pressure sensor 27 can detect the pressure received by the pressing plate 28, so as to detect the pressure received by the wood plate.

[0044] In the application, when the test device detects the bearing capacity of the phenolic resin fast-growing poplar plywood, first, under the action of the first motor 15, the second gear 16 is driven to rotate, and under the action of the second gear 14, the bidirectional lead screw 13 is driven to rotate, thereby driving the movable frame 11 to move inside the movable groove 10, adjusting the support wheel 12 to the appropriate position, and moving the support wheel 12 inside the movable frame to further adjust the position of the support wheel 12. Then, under the operation of the staff, the plywood is placed on the top of the support wheel 12. Subsequently, under the action of the second telescopic rod 20, the mounting frame 19 is driven to move downward inside the mounting box 17 to the appropriate position, and the mounting plate 21, the visual sensor 23 and the ultrasonic detection device 22 are driven to the appropriate position. Subsequently, under the action of the ultrasonic detection device 22, ultrasonic waves are generated and emitted from the probe thereof to the plywood. When the ultrasonic waves propagate in the plywood, they will interact with the internal structure, defects or different media. When the ultrasonic waves encounter defects (such as cracks or cavities) inside the plywood or boundaries, part of the ultrasonic waves will be reflected. These reflected waves will be received by the probe of the ultrasonic detection device 22 and converted into electrical signals, which are transmitted to the display screen 6 for display, thereby determining whether the plywood has been damaged. If the plywood is damaged, it needs to be replaced. If there is no damage, subsequent testing can be performed. The side cover 3 is closed, and then the temperature and humidity inside the device are detected by the temperature sensor 8 and the humidity sensor 9, and transmitted to the display screen 6 for display. When the humidity inside the device is low, under the operation of the staff, water is injected into the box 40 from the water inlet 43. When the temperature inside the device is too high, after the box 40 is filled with water, the cooling water inside the cooling pipe 45 is circulated and flows under the action of the circulating pump 46, thereby absorbing heat from the water inside the box 40 to reduce the temperature. The cooled water moves to the cooling device 44, which uses a semiconductor heat dissipation device to dissipate heat from the cooling water, so that it can continuously cool the water inside the box 40 for a long time. When the water inside the box 40 is cooled, the water inside the box 1 is pumped out by the water pump 49 and sprayed from the replaced atomizing nozzle through the water supply pipe 38 and the communication pipe 30, thereby humidifying and cooling the device inside. At the same time, under the action of the third motor 36, the eccentric wheel 35 is driven to rotate, and under the action of the connecting rod 34 and the limiting block 32, the gear rack 33 is driven to reciprocate, and under the action of the transmission wheel 31, the communication pipe 30 and the replaced atomizing nozzle are driven to reciprocate, thereby making the water mist sprayed inside the device more uniform. When it is necessary to heat the device inside, after water is fed into the box 40 from the water inlet 43, the water inside the box 40 is heated by the power supply 47 and the heating pipe 48, and is fed into the device from the above structure and method, thereby humidifying and heating the device inside.When it is necessary to reduce the humidity and temperature inside the device, under the operation of the worker, the water inside the box 40 is sucked out from the water inlet 43 and the movable cover 42 is opened, then under the cooperation of the circulating pump 46, the cooling device 44 and the cooling pipe 45, the air inside the box 40 can be cooled, then under the action of the air pump 52, the cold air inside the box 1 is sucked out and enters the dehumidifying box 50 through the connecting pipe 51, under the action of the dehumidifying filter plate 53 (which is provided with activated carbon, limestone and other moisture absorbing materials) installed inside, the moisture in the air is adsorbed, then it is sprayed out from the replaced nozzle through the air conveying pipe 37 and the communication pipe 30, and under the action of the third motor 36, the eccentric wheel 35, the communication rod 34 and other structures, the air entering the device is more uniform, when it is necessary to reduce the humidity and improve the temperature inside the device, under the action of the power supply 47 and the heating pipe 48, the air inside the box 40 can be heated, and the heated air is conveyed to the inside of the device through the above-mentioned structure, so that the humidity inside the device is reduced while the temperature inside the device is improved, when adjusting the temperature and humidity inside the device, the size of the slot opened on the top of the shell 2 can be adjusted through the first telescopic rod 5 and the movable plate 4, so that the adjustment effect of the temperature and humidity inside the device is improved, when the adjustment of the temperature and humidity inside the device is completed, under the action of the second telescopic rod 20, the mounting bracket 19 moves downward in the mounting box 17, the mounting plate 21 and the pressing plate 28 move downward to press and bend the plywood, and under the action of the pressure sensor 27, the pressure received by the plywood is detected in real time and displayed on the display screen 6, and under the action of the infrared range finder 18, the distance moved by the mounting bracket 19 is detected and transmitted to the display screen 6 for display, so that the pressure received by the plywood can be detected, and when the plywood is pressed and bent, under the action of the visual sensor 23 and the ultrasonic detection device 22, the plywood is detected and the data is transmitted to the display screen 6 for display, so that whether the plywood is damaged or not can be judged, and the bearing capacity of the phenolic resin fast-growing poplar plywood can be obtained, and the test is completed.

[0045] The wiring diagram of the first motor 15, the second motor 26, the third motor 36, the temperature sensor 8, the humidity sensor 9, the infrared range finder 18, the visual sensor 23 and the pressure sensor 27 in the present application belongs to the common knowledge in the field, and the working principle is a known technology, and the model is selected according to the actual use, so the control mode and wiring arrangement of the first motor 15, the second motor 26, the third motor 36, the temperature sensor 8, the humidity sensor 9, the infrared range finder 18, the visual sensor 23 and the pressure sensor 27 will not be explained in detail.

[0046] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for testing the ultimate bearing capacity of a phenol-formaldehyde resin fast-growing poplar glued wood board, characterized in that it comprises: Including the workbench (1), the top of the workbench (1) is fixedly installed with the shell (2), the inner wall of the shell (2) is fixedly installed with two temperature sensors (8), the inner wall of the shell (2) is fixedly installed with two humidity sensors (9), the outer wall of the shell (2) is provided with a mounting groove (29) on one side, the inner wall of the mounting groove (29) is movably inserted with a communication pipe (30), the outer wall of the communication pipe (30) is fixedly sleeved with a transmission wheel (31), the outer wall of the shell (2) is fixedly installed with two limit blocks (32) on one side, the inner wall of the two limit blocks (32) is movably inserted with a gear rack (33), and the outer wall of the gear rack (33) is meshed with the outer wall of the transmission wheel (31), the inner wall of the gear rack (33) is movably connected with a connecting rod (34), the outer wall of the shell (2) is fixedly installed with a third motor (36) on one side, the output end of the third motor (36) is fixedly sleeved with an eccentric wheel (35), and the outer wall of the eccentric wheel (35) is movably connected with the inner wall of the connecting rod (34), the outer wall of the communication pipe (30) is fixedly communicated with a gas pipe (37), the outer wall of the communication pipe (30) is fixedly communicated with a water pipe (38), the inner wall of the water pipe (38) and the gas pipe (37) is provided with a valve (39), and the inner wall of the workbench (1) is fixedly installed with a box (40) on the bottom.

2. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 1, characterized in that: The top of the box (40) is fixedly installed with a top cover (41), the inner wall of the top cover (41) is provided with a movable cover (42), the top of the top cover (41) is provided with a water inlet (43), the top of the top cover (41) is fixedly installed with a cooling device (44), the outer wall of the cooling device (44) is provided with a cooling pipe (45), and the cooling pipe (45) is arranged in the box (40), the top of the top cover (41) is fixedly installed with a circulating pump (46), and the outer wall of the cooling pipe (45) is provided with a circulating pump (46), the top of the top cover (41) is fixedly installed with a power supply (47), the outer wall of the power supply (47) is provided with a heating pipe (48), and the heating pipe (48) is arranged in the box (40), and the inner wall of the workbench (1) is fixedly installed with a water pump (49).

3. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 2, characterized in that: The water pump (49) and the outer wall of the box (40) are connected by a pipeline, and the outer wall of the water pump (49) is fixedly communicated with the outer wall of the water pipe (38), the inner wall of the workbench (1) is fixedly installed with a dehumidification box (50) on the bottom, and the outer wall of the dehumidification box (50) is fixedly communicated with the outer wall of the gas pipe (37) on one side, the inner wall of the dehumidification box (50) is provided with a plurality of dehumidification filter plates (53), the outer wall of the dehumidification box (50) is fixedly communicated with a connecting pipe (51) on one side, the inner wall of the workbench (1) is fixedly installed with a gas pump (52) on the bottom, the gas pump (52) and the outer wall of the box (40) are connected by a pipeline, and the outer wall of the gas pump (52) is fixedly communicated with the outer wall of the connecting pipe (51).

4. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 3, characterized in that: The outer wall of the shell (2) is provided with two side covers (3), the inner wall of the shell (2) is provided with a movable plate (4), the top of the shell (2) is fixedly provided with a first telescopic rod (5), and the telescopic end of the first telescopic rod (5) is fixedly connected with one side of the outer wall of the movable plate (4), one side of the outer wall of the shell (2) is provided with a display screen (6), one side of the outer wall of the shell (2) is provided with an operation table (7), the top of the workbench (1) is provided with two groups of movable grooves (10), and the inner walls of the two groups of movable grooves (10) are movably embedded with movable racks (11), the inner walls of the two movable racks (11) are movably embedded with supporting wheels (12), and a bidirectional screw rod (13) is movably inserted between the inner walls of the two movable racks (11).

5. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 4, characterized in that: The outer wall of the bidirectional screw rod (13) is fixedly provided with a first gear (14), and the outer wall of the first gear (14) is fixedly provided with a second gear (16), and the outer wall of the second gear (16) is fixedly provided with a second gear (16). The outer wall of the first gear (14) is meshed and connected.

6. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 5, characterized in that: The inner wall of the shell (2) is fixedly provided with a mounting box (17), and the outer wall of the mounting box (17) is fixedly provided with an infrared range finder (18).

7. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 6, characterized in that: The top of the mounting frame (19) is fixedly provided with a second telescopic rod (20), and one side of the outer wall of the second telescopic rod (20) is fixedly connected with one side of the inner wall of the mounting box (17). The bottom of the mounting frame (19) is fixedly provided with a mounting plate (21).

8. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 7, characterized in that: The top of the mounting plate (21) is fixedly provided with an ultrasonic detection device (22), and the probe of the ultrasonic detection device (22) penetrates the mounting plate (21), and the outer wall of the mounting plate (21) is fixedly provided with two visual sensors (23). The inner walls of the mounting plate (21) are movably embedded with two groups of movable blocks (24), and a bidirectional threaded rod (25) is movably inserted between the inner walls of the two groups of movable blocks (24), and a second motor (26) is fixedly installed on one side of the outer wall of the mounting plate (21). The output end of the second motor (26) is fixedly connected with the outer wall of the bidirectional threaded rod (25).

9. The phenol formaldehyde resin fast growing poplar plywood ultimate bearing capacity test device according to claim 8, characterized in that: A group of pressure sensors (27) are fixedly installed on the inner walls of the two groups of movable blocks (24), a pressing plate (28) is arranged between the inner walls of the two groups of movable blocks (24), and one side of the outer wall of the pressure sensor (27) is in contact with one side of the outer wall of the pressing plate (28).

10. A method of using a device for testing the ultimate load capacity of a phenol-formaldehyde resin fast-growing poplar glued-wood board, characterized in that, The phenolic resin fast-growing poplar plywood ultimate bearing capacity test device of any one of claims 1-9 is used, comprising the following steps: S1, in the test device to the phenolic resin fast-growing poplar plywood bearing capacity detection, first in the first motor (15) under the action of the second gear (16) rotation, while in the second gear (14) under the action of the bidirectional screw rod (13) rotation, thus driving the movable frame (11) in the movable groove (10) movement, the support wheel (12) is adjusted to the appropriate position, while moving the support wheel (12) in the movable frame movement, the position of the support wheel (12) is further adjusted, then under the operation of the staff, the plywood is placed on the top of the support wheel (12), then under the action of the second telescopic rod (20), the mounting bracket (19) is driven to move downward in the mounting box (17) to the appropriate position, And the mounting plate (21), visual sensor (23) and ultrasonic detection device (22) are driven to the appropriate position, then under the action of the ultrasonic detection device (22), the plywood is detected, and the result is transmitted to the display screen (6) for display, so as to judge whether the plywood has been damaged, if the plywood is damaged, it needs to be replaced, if there is no damage, the subsequent test can be carried out, the side cover (3) is closed, then under the action of the temperature sensor (8) and the humidity sensor (9), the temperature and humidity in the equipment are detected and transmitted to the display screen (6) for display; S2, when the humidity in the equipment is low, under the operation of the staff, water is injected into the box (40) from the water inlet (43), when the temperature in the equipment is too high, after the box (40) is filled with water, the water in the box (40) is cooled by the cooling device (44), circulating pump (46) and cooling pipe (45), when the water in the box (40) is cooled, under the action of the water pump (49), the water in the box (1) is pumped out and sprayed from the replaced atomizing nozzle through the water pipe (38) and the communication pipe (30), which can humidify and cool the equipment, at the same time, under the action of the third motor (36), the eccentric wheel (35) is driven to rotate, under the action of the connecting rod (34) and the limiting block (32), the gear rack (33) is driven to reciprocate, and under the action of the transmission wheel (31), the communication pipe (30) and the replaced atomizing nozzle are driven to reciprocate, so that the water mist is sprayed more uniformly in the equipment, when the equipment needs to be heated, after the water is sent into the box (40) from the water inlet (43), the water in the box (40) is heated by the power supply (47) and the heating pipe (48), and the above structure and method are sent into the equipment, which can humidify and heat the equipment; S3, when the humidity and temperature inside the device need to be reduced, under the operation of the worker, the water inside the box (40) is sucked out from the water inlet (43) and the movable cover (42) is opened, then under the cooperation of the circulating pump (46), the cooling device (44) and the cooling pipe (45), the air inside the box (40) can be cooled, then under the action of the air pump (52), the cold air inside the box (1) is sucked out and enters the dehumidifying box (50) through the connecting pipe (51), under the action of the dehumidifying filter plate (53) installed in it, the moisture in the air is adsorbed, then it is sprayed out from the replaced nozzle through the air conveying pipe (37) and the connecting pipe (30), and under the action of the third motor (36), the eccentric wheel (35), the connecting rod (34) and other structures, the air entering the device is more uniform, when the humidity inside the device needs to be reduced and the temperature needs to be improved, the air inside the box (40) can be heated by the power supply (47) and the heating pipe (48), and the heated air is conveyed to the inside of the device through the above structure, so as to reduce the humidity inside the device while improving the temperature inside the device; S4, when adjusting the temperature and humidity inside the device, the size of the slot opened on the top of the shell (2) can be adjusted by the first telescopic rod (5) and the movable plate (4), so as to improve the adjustment effect of the temperature and humidity inside the device, when the temperature and humidity inside the device are adjusted, under the action of the second telescopic rod (20), the mounting bracket (19) moves downward in the mounting box (17), drives the mounting plate (21) and the pressing plate (28) to move downward to press and bend the plywood, and under the action of the pressure sensor (27), the pressure received by the plywood is detected in real time and displayed on the display screen (6), at the same time, under the action of the infrared range finder (18), the distance moved by the mounting bracket (19) is detected and transmitted to the display screen (6) for display, so that the pressure received by the plywood can be detected, at the same time of pressing and bending the plywood, under the action of the visual sensor (23) and the ultrasonic detection device (22), the plywood is detected and the data is transmitted to the display screen (6) for display, so as to judge whether the plywood is damaged and the bearing capacity of the plywood is obtained, and the test is completed. ​

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