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

Abstract

The invention discloses a phenolic resin fast-growing poplar laminated board ultimate bearing capacity testing device and method, and relates to the technical field of bearing capacity testing devices.The phenolic resin fast-growing poplar laminated board ultimate bearing capacity testing device comprises a workbench, and a shell is fixedly installed at the top of the workbench; in the invention, when the temperature or humidity in the equipment needs to be adjusted, water is added into the box body, then the water in the box body can be heated or cooled under the mutual cooperation of the cooling device, the cooling pipe, the circulating pump, the power supply and the heating pipe, and then the water in the box body can be heated or cooled under the mutual interaction of a water pump, a water conveying pipe, a communicating pipe and other structures. Water in the box body can be sucked out and fed into the equipment, so that the interior of the equipment is humidified, cooled or heated, under the action of a series of subsequent assemblies, the humidity in the equipment can be reduced, heating or cooling treatment is completed, temperature or humidity adjustment is achieved, and the service life of the equipment is prolonged. And the phenolic resin fast-growing poplar glued board is prevented from being easily influenced by the environment during detection.

Description

Technical Field

[0001] The invention relates to the technical field of bearing capacity testing devices, in particular to a device and method for testing the ultimate bearing capacity of a phenolic resin fast-growing poplar plywood board. Background Art

[0002] The wood structure is developed into high-rise buildings. The wood structure currently used is mainly glued laminated timber structure, which has a short construction period, is renewable and comfortable to live in. The wood is light and high-strength, with good seismic performance. Compared with light steel structure and reinforced concrete structure, its building life cycle carbon emissions are the lowest. Among them, fast-growing poplar wood, as a renewable material, has very rich reserves and meets the requirements of low-carbon economy and circular economy. Fast-growing poplar has the advantages of fast growth, straight trunk, fewer growth knots, and high yield rate, but it also has defects such as soft wood fiber material, large variability, easy corrosion and low strength. Fast-growing poplar glued laminated timber, which is made by gluing fast-growing poplar veneers, can significantly improve its mechanical properties, increase bearing capacity, and improve deformation capacity. Phenolic resin fast-growing poplar glued laminated timber uses fast-growing poplar boards as raw materials and is glued with adhesives. It is a wood structure building material with great potential, but its bearing capacity needs to be tested and studied by a bearing capacity testing device to determine whether it meets the requirements of building materials.

[0003] In the prior art, when testing phenolic resin fast-growing poplar plywood boards through a load-bearing capacity testing device, the plywood boards are directly placed on the testing device for testing. Since the testing device has a single structure, it is impossible to adjust the temperature and humidity inside the device when testing the plywood boards, so that the test results of the plywood boards are affected by environmental factors, thereby reducing the accuracy of the plywood board test structure, and it is difficult to test the plywood boards under different temperature and humidity environments, thereby affecting the comprehensiveness of the test results and the practicality of the testing device. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood boards, so as to solve the problem raised in the above background that when the plywood boards are tested, the temperature and humidity inside the equipment cannot be adjusted, so that the test results of the plywood boards are affected by environmental factors.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device, comprising a workbench, a shell is fixedly installed on the top of the workbench, two temperature sensors are fixedly installed on the inner surface wall of the shell, two humidity sensors are fixedly installed on the inner surface wall of the shell, a mounting groove is opened on one side of the outer wall of the shell, a connecting pipe is movably inserted on the inner surface wall of the mounting groove, a transmission wheel is fixedly sleeved on the outer surface wall of the connecting pipe, two limit blocks are fixedly installed on one side of the outer wall of the shell, and the two limit blocks A tooth row is movably inserted between the inner walls, and one side of the outer wall of the tooth row is meshed with the outer wall of the transmission wheel, a connecting rod is movably connected to the inner wall of the tooth row, a third motor is fixedly installed on one side of the outer wall of the shell, an eccentric wheel is fixedly sleeved on the output end of the third motor, and the outer wall of the eccentric wheel is movably connected to the inner wall of the connecting rod, an air pipe is fixedly connected to the outer wall of the connecting pipe, a water pipe is fixedly connected to the outer wall of the connecting pipe, valves are provided on the inner walls of the water pipe and the air pipe, and a box is fixedly installed on the bottom of the inner wall of the workbench.

[0006] Preferably, a top cover is fixedly installed on the top of the box body, a movable cover is provided on the inner wall of the top cover, a water inlet is provided on the top of the top cover, a cooling device is fixedly installed on the top of the top cover, a cooling pipe is provided on the outer wall of the cooling device, and the cooling pipe is arranged inside the box body, a circulating pump is fixedly installed on the top of the top cover, and a circulating pump is provided on the outer wall of the cooling pipe, a power supply is fixedly installed on the top of the top cover, a heating pipe is provided on the outer wall of the power supply, and the heating pipe is arranged inside the box body, and a water pump is fixedly installed on the inner wall of the workbench, and the water or air inside the box body can be cooled by the cooperation of the cooling device, the cooling pipe and the circulating pump, and the water or air inside the box body can be heated by the interaction of the power supply and the heating pipe.

[0007] Preferably, the water pump is connected to the outer wall of the box body by a pipe, and the outer wall of the water pump is fixedly connected to the outer wall of the water pipe, a dehumidification box is fixedly installed on the bottom of the inner wall of the workbench, and one side of the outer wall of the dehumidification box is fixedly connected to the outer wall of the air pipe, a plurality of dehumidification filter plates are provided on the inner wall of the dehumidification box, one side of the outer wall of the dehumidification box is fixedly connected to a connecting pipe, an air pump is fixedly installed on the bottom of the inner wall of the workbench, the air pump is connected to the outer wall of the box body by a pipe, and the outer wall of the air pump is fixedly connected to the outer wall of the connecting pipe, under the action of the water pump, the water that has been heated or cooled inside the box body can be sucked out, under the action of the air pump, the air that has been heated or cooled inside the box can be sucked out 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 enters the interior of the equipment through the air pipe.

[0008] 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, a first telescopic rod is fixedly installed on the top of the shell, and the telescopic end of the first telescopic rod is fixedly connected to one side of the outer wall of the movable plate, a display screen is provided on one side of the outer wall of the shell, an operating table is provided on one side of the outer wall of the shell, two groups of movable grooves are opened on the top of the workbench, movable frames are movably embedded between the inner walls of the two groups of the movable grooves, supporting wheels are movably embedded in the inner walls of the two movable frames, and a bidirectional screw rod is movably inserted between the inner walls of the two movable frames, the display screen can display the operating status of the equipment and the data of the display board, and the equipment can be controlled through the operating table according to the displayed data.

[0009] Preferably, the outer wall fixing sleeve of the bidirectional screw rod is provided with a first gear, a first motor is fixedly installed on one side of the outer wall of the workbench, the output end fixing sleeve of the first motor is provided with a second gear, and the outer wall of the second gear is meshingly connected with the outer wall of the first gear. The first motor can be used as power output, and under the action of the first gear and the second gear, the bidirectional screw rod is driven to rotate.

[0010] Preferably, a mounting box is fixedly mounted on the top of the inner wall of the shell, an infrared rangefinder is fixedly mounted on one side of the outer wall of the mounting box, a mounting frame is movably inserted into the inner surface wall of the mounting box, and the infrared rangefinder can measure the distance moved by the mounting frame in real time.

[0011] Preferably, a second telescopic rod is fixedly installed on the top of the mounting frame, and one side of the outer wall of the second telescopic rod is fixedly connected to one side of the inner wall of the mounting box, and a mounting plate is fixedly installed on the bottom of the mounting frame, and the second telescopic rod can drive the mounting frame to move inside the mounting box.

[0012] Preferably, an ultrasonic detection device is fixedly installed on the top of the mounting plate, and the probe of the ultrasonic detection device passes through the mounting plate, two visual sensors are fixedly installed on the outer wall of the mounting plate, and two groups of movable blocks are movably embedded in the inner wall of the mounting plate, and a bidirectional threaded rod is movably inserted between the inner walls of the two groups of movable blocks, and a second motor is fixedly installed on one side of the outer wall of the mounting plate, and the output end of the second motor is fixedly connected to the outer wall of the bidirectional threaded rod. Under the action of the ultrasonic detection device, the inside of the wooden board can be inspected to determine whether the wooden board is damaged or broken, so as to determine whether the wooden board is damaged or broken, and the second motor can be used as power output to drive the bidirectional threaded rod to rotate.

[0013] Preferably, a group of pressure sensors are fixedly installed on the inner surface walls of the two groups of movable blocks, a pressure plate is arranged between the inner surface walls of the two groups of movable blocks, and one side of the outer wall of the pressure sensor is in contact with one side of the outer wall of the pressure plate. The pressure sensor can detect the pressure exerted on the pressure plate, thereby detecting the pressure exerted on the wooden board.

[0014] The method for using the phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device comprises the following steps:

[0015] 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, the second gear is driven to rotate, and at the same time, under the action of the second gear, the bidirectional screw is driven to rotate, thereby driving the movable frame to move inside the movable groove, adjusting the support wheel to a suitable position, and moving the support wheel to move inside the movable frame, and further adjusting the position of the support wheel. Then, under the operation of the staff, the plywood is placed on the top of the support wheel, and then, under the action of the second telescopic rod, the mounting frame is driven to move downward inside the mounting box to a suitable position, and the mounting plate, the visual sensor and the ultrasonic detection device are driven to a suitable position. Then, under the action of the ultrasonic detection device, the plywood is detected, and the results are transmitted to the display screen for display, so as to determine whether the plywood is damaged. If the plywood is damaged, it needs to be replaced. If no damage occurs, subsequent tests can be carried out, the side cover is closed, and then, under the action of the temperature sensor and the humidity sensor, the temperature and humidity inside the equipment are detected and transmitted to the display screen for display;

[0016] S2. When the humidity inside the equipment is low, water is injected into the box from the water injection port under the operation of the staff. When the temperature inside the equipment is too high, after the box is filled with water, the water inside the box is subjected to heat absorption and cooling treatment under the action of the cooling device, the circulating pump and the cooling pipe. After the water inside the box is cooled, the water inside the box is sucked out under the action of the water pump, and sprayed out from the replaced atomizing nozzle through the water pipe and the connecting pipe, so as to humidify and cool the inside of the equipment. At the same time, under the action of the third motor, the eccentric wheel is driven to rotate, and under the action of the connecting rod and the limit block, the gear row is driven to reciprocate, and under the action of the transmission wheel, the connecting pipe and the replaced atomizing nozzle are driven to reciprocate, so that the water mist is sprayed more evenly inside the equipment. When it is necessary to heat up the inside of the equipment, water is sent into the box from the water injection port, and the water inside the box is heated under the action of the power supply and the heating pipe, and sent into the equipment from the above structure and method, so as to humidify and heat up the inside of the equipment.

[0017] S3. When it is necessary to lower the humidity and temperature inside the equipment, under the operation of the staff, the water inside the box is sucked out from the water inlet and the movable cover is opened. Then, with 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 dehumidification box through the connecting pipe. The moisture in the air is adsorbed under the action of the dehumidification filter plate installed inside. Then, it is sprayed out from the replaced nozzle through the air supply pipe and the connecting pipe. Under the action of the third motor, the eccentric wheel, the connecting rod and other structures, the air entering the equipment is made more uniform. When it is necessary to lower the humidity inside the equipment and increase the temperature, the air inside the box can be heated by the power supply and the heating pipe, and the heated air is transported to the inside of the equipment through the above structure, thereby reducing the humidity inside the equipment while increasing the temperature inside the equipment.

[0018] S4. When adjusting the temperature and humidity inside the equipment, the size of the slot on the top of the shell can be adjusted by the first telescopic rod and the movable plate to improve the adjustment effect of the temperature and humidity inside the equipment. After the temperature and humidity inside the equipment are adjusted, the second telescopic rod drives the mounting frame to move downward inside the mounting box, drives the mounting plate and the pressing plate to move downward to bend the plywood, and under the action of the pressure sensor, the pressure on 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 rangefinder, the distance moved by the mounting frame is detected and transmitted to the display screen for display, so that the pressure on the plywood can be detected. While the plywood board is being bent, the plywood board is detected under the action of the visual sensor and the ultrasonic detection device, and the data is transmitted to the display screen for display, so as to judge whether the plywood is damaged, and obtain the bearing capacity of the phenolic resin fast-growing poplar plywood board to complete the test.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. During use, through the action of a series of components, when it is necessary to adjust the temperature or humidity inside the equipment, first determine whether to add water inside the box according to the need. When it is necessary to humidify the inside of the equipment, add water inside the box, and then, with the cooperation of the cooling device, cooling pipe, circulating pump, power supply and heating pipe, the water inside the box can be heated or cooled. Then, under the interaction of structures such as water pump, water pipe, connecting pipe, etc., the water inside the box can be sucked out and sent into the equipment, so as to humidify and cool or heat the inside of the equipment. When it is necessary to reduce the humidity inside the equipment, the water inside the box is discharged, and the air inside the box is heated or cooled. Then, under the interaction of structures such as air pump, connecting pipe, dehumidification box, dehumidification filter plate, air pipe, etc., the humidity inside the equipment can be reduced, and the inside of the equipment can be heated or cooled. Through the above method, the temperature or humidity inside the equipment can be adjusted, and the phenolic resin fast-growing poplar plywood can be prevented from being easily affected by the environment during detection, the accuracy and comprehensiveness of the test results can be improved, and the practicality of the test device can be greatly improved.

[0021] 2. When in use, through the action of a series of components, when it is necessary to test the bearing capacity of the phenolic resin fast-growing poplar plywood, first place the wood board in a suitable position, then under the action of the ultrasonic detection device, ultrasonic waves are generated on the wood board and recovered, and the data is transmitted to the display screen after processing for display, so as to judge whether there is damage or breakage inside the wood board, avoid experimental testing of damaged wood boards, and thus improve the accuracy of the test results;

[0022] 3. When in use, through the action of a series of components, when it is necessary to test the bearing capacity of the phenolic resin fast-growing poplar plywood, firstly, under the cooperation of the first motor, the first gear, the second gear, the bidirectional screw rod and the movable frame, the support wheel can be driven to move and the support wheel can be adjusted to a suitable position, and under the action of the second motor and the bidirectional threaded rod, the movable block, the pressure sensor and the pressure plate can be driven to move to a suitable position, so that they can be adjusted according to the size of the wood board, thereby improving its practicality;

[0023] 4. When in use, through the action of a series of components, during the load-bearing capacity test of phenolic resin fast-growing poplar plywood, through the action of visual sensors and display screens, the state of the wood board can be detected in real time and transmitted to the display screen for display, so that the staff can observe more clearly, and under the action of the outer shell and side cover, the wood board can be prevented from breaking during the test and its debris can be prevented from splashing, thereby protecting the staff and avoiding injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a main structural stereogram of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0025] Figure 2 It is a front structural cross-sectional view of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0026] Figure 3 It is a main structural exploded stereoscopic diagram of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0027] Figure 4 It is a main structural sectional three-dimensional exploded view of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0028] Figure 5 This is a schematic diagram of the main structure of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0029] Figure 6 It is a disassembled stereoscopic diagram of the main structure part of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0030] Figure 7 This is an enlarged view of structure A of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention;

[0031] Figure 8 This is a sectional view of the main structural part of the device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to the present invention.

[0032] In the figure:

[0033] 1. Workbench; 2. 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 slot; 11. Movable frame; 12. Support wheel; 13. Bidirectional screw rod; 14. First gear; 15. First motor; 16. Second gear; 17. Mounting box; 18. Infrared rangefinder; 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. First Second motor; 27. Pressure sensor; 28. Pressure plate; 29. ​​Mounting slot; 30. Connecting pipe; 31. Transmission wheel; 32. Limit block; 33. Gear row; 34. Linking rod; 35. Eccentric wheel; 36. Third motor; 37. Air pipe; 38. Water pipe; 39. Valve; 40. Box body; 41. Top cover; 42. Movable cover; 43. Water inlet; 44. Cooling device; 45. Cooling pipe; 46. Circulation 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] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 8 As shown: a phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device comprises 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, a mounting groove 29 is opened on one side of the outer wall of the shell 2, a connecting pipe 30 is movably inserted into the inner surface wall of the mounting groove 29, a transmission wheel 31 is fixedly sleeved on the outer surface wall of the connecting pipe 30, two limit blocks 32 are fixedly installed on one side of the outer wall of the shell 2, a tooth row 33 is movably inserted between the inner surface walls of the two limit blocks 32, and One side of the outer wall of the tooth row 33 is meshed with the outer wall of the transmission wheel 31, and the inner wall of the tooth row 33 is movably connected with a connecting rod 34. A third motor 36 is fixedly installed on one side of the outer wall of the outer shell 2. An eccentric wheel 35 is fixedly sleeved on the output end of the third motor 36, 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 connecting pipe 30 is fixedly connected with an air pipe 37, and the outer wall of the connecting pipe 30 is fixedly connected with a water pipe 38. The inner walls of the water pipe 38 and the air pipe 37 are both provided with valves 39. A box 40 is fixedly installed on the bottom of the inner wall of the workbench 1.

[0036] like Figure 8 As shown, a top cover 41 is fixedly installed on the top of the box body 40, a movable cover 42 is provided on the inner wall of the top cover 41, a water injection port 43 is provided 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 provided on the outer wall of the cooling device 44, and the cooling pipe 45 is arranged inside the box body 40, a circulating pump 46 is fixedly installed on the top of the top cover 41, and a circulating pump 46 is provided on the outer 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 provided on the outer wall of the power supply 47, and the heating pipe 48 is arranged inside the box body 40, and a water pump 49 is fixedly installed on the inner wall of the workbench 1, through the mutual cooperation of the cooling device 44, the cooling pipe 45 and the circulating pump 46, the water or air inside the box body 40 can be cooled, and through the interaction of the power supply 47 and the heating pipe 48, the water or air inside the box body 40 can be heated.

[0037] like Figure 8As shown, the water pump 49 is connected to the outer wall of the box body 40 through a pipeline, and the outer wall of the water pump 49 is fixedly connected to the outer wall of the water pipe 38, a dehumidification box 50 is fixedly installed at the bottom of the inner wall of the workbench 1, and one side of the outer wall of the dehumidification box 50 is fixedly connected to the outer wall of the air pipe 37, a plurality of dehumidification filter plates 53 are arranged on the inner wall of the dehumidification box 50, one side of the outer wall of the dehumidification box 50 is fixedly connected to a connecting pipe 51, an air pump 52 is fixedly installed at the bottom of the inner wall of the workbench 1, and the air pump 52 is connected to the outer wall of the air pipe 37. The outer walls of the box body 40 are connected by pipes, and the outer wall of the air pump 52 is fixedly connected to the outer wall of the connecting pipe 51. Under the action of the water pump 49, the water that has been heated or cooled inside the box body 40 can be sucked out. Under the action of the air pump 52, the air that has been heated or cooled inside the box body 40 can be sucked out and sent to the inside of 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 interior of the equipment through the air pipe 37.

[0038] like Figure 1-Figure 4 As shown, 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, a first telescopic rod 5 is fixedly installed on the top of the shell 2, and the telescopic end of the first telescopic rod 5 is fixedly connected to one side of the outer wall of the movable plate 4, a display screen 6 is provided on one side of the outer wall of the shell 2, and an operating table 7 is provided on one side of the outer wall of the shell 2, two groups of movable grooves 10 are opened on the top of the workbench 1, movable frames 11 are movably embedded between the inner walls of the two groups of movable grooves 10, support wheels 12 are movably embedded in the inner walls of the two movable frames 11, and a bidirectional screw rod 13 is movably inserted between the inner walls of the two movable frames 11, the display screen 6 can display the operating status of the equipment and the data of the display board, and the equipment can be controlled through the operating table 7 according to the displayed data.

[0039] like Figure 4 As shown, the outer wall of the bidirectional screw rod 13 is fixedly sleeved with a first gear 14, and a first motor 15 is fixedly installed on one side of the outer wall of the workbench 1. 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 meshingly 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] like Figure 2-Figure 5 As shown, a mounting box 17 is fixedly mounted on the top of the inner wall of the housing 2, an infrared rangefinder 18 is fixedly mounted on one side of the outer wall of the mounting box 17, and a mounting bracket 19 is movably inserted into the inner surface wall of the mounting box 17. The infrared rangefinder 18 can measure the moving distance of the mounting bracket 19 in real time.

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

[0042] like Figure 5 As shown, an ultrasonic detection device 22 is fixedly installed on the top of the mounting plate 21, and the probe of the ultrasonic detection device 22 passes through the mounting plate 21, two visual sensors 23 are fixedly installed on the outer wall of the mounting plate 21, and two groups of movable blocks 24 are movably embedded in the inner wall of the mounting plate 21, 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, and the output end of the second motor 26 is fixedly connected to the outer wall of the bidirectional threaded rod 25. Under the action of the ultrasonic detection device 22, the inside of the wooden board can be inspected to determine whether the wooden board 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] like Figure 5 As shown, a group of pressure sensors 27 are fixedly installed on the inner surface walls of the two groups of movable blocks 24, a pressure plate 28 is arranged between the inner surface 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 pressure plate 28. The pressure sensor 27 can detect the pressure exerted on the pressure plate 28, thereby detecting the pressure exerted on the wooden board.

[0044] In the present invention, 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 at the same time, under the action of the second gear 14, the bidirectional screw rod 13 is driven to rotate, thereby driving the movable frame 11 to move inside the movable groove 10, adjusting the support wheel 12 to a suitable position, and at the same time, moving the support wheel 12 to move inside the movable frame, further adjusting the position of the support wheel 12, and then, under the operation of the staff, the plywood is placed on the top of the support wheel 12, and then, under the action of the second telescopic rod 20, the mounting frame 19 is driven to move downward to a suitable position inside the mounting box 17, and the mounting plate 21, the visual sensor 23 and the ultrasonic detection device are moved. 22 is driven to a suitable position, and then under the action of the ultrasonic detection device 22, an ultrasonic wave is generated and emitted from its probe to the plywood. When the ultrasonic wave propagates in the plywood, it will interact with its internal structure, defects or different media. When the ultrasonic wave encounters defects (such as cracks, holes) or boundaries inside the plywood, part of the ultrasonic wave will be reflected. These reflected waves will be received by the probe of the ultrasonic detection device 22 and converted into electrical signals, and transmitted to the display screen 6 for display, so as to determine whether the plywood is damaged. If the plywood is damaged, it needs to be replaced. If no damage occurs, subsequent tests can be carried out. The side cover 3 is closed, and then the temperature sensor 8 and the humidity sensor 8 are used. Under the action of sensor 9, the temperature and humidity inside the equipment are detected and transmitted to display screen 6 for display. When the humidity inside the equipment is low, water is injected into the box body 40 from the water injection port 43 under the operation of the staff. When the temperature inside the equipment is too high, after the box body 40 is filled with water, the cooling water inside the cooling pipe 45 is driven to circulate under the action of the circulation pump 46, and the water inside the box body 40 is subjected to heat absorption and cooling treatment. The cooling water after absorbing heat moves to the inside of the cooling device 44, and the cooling water is subjected to heat dissipation treatment through the semiconductor heat dissipation device inside the cooling device, so that the water inside the box body 40 can be continuously cooled for a long time. When the water inside the box body 40 is cooled, the water inside the box body 1 is cooled under the action of the water pump 49. The water is sucked out and sprayed out from the replaced atomizing nozzle through the water delivery pipe 38 and the connecting pipe 30 to humidify and cool the inside of the equipment. At the same time, under the action of the third motor 36, the eccentric wheel 35 is driven to rotate. At the same time, under the action of the connecting rod 34 and the limit block 32, the gear row 33 is driven to reciprocate, and under the action of the transmission wheel 31, the connecting pipe 30 and the replaced atomizing nozzle are driven to reciprocate, so that the water mist is sprayed more evenly inside the equipment. When it is necessary to heat up the inside of the equipment, water is sent into the box body 40 from the water injection port 43, and the water inside the box body 40 is heated by the power supply 47 and the heating pipe 48, and sent into the equipment through the above structure and method to humidify and heat the inside of the equipment.When it is necessary to reduce the humidity and temperature inside the equipment, under the operation of the staff, the water inside the box 40 is sucked out from the water injection port 43 and the movable cover 42 is opened. Then, under the cooperation of the circulation 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 dehumidification box 50 through the connecting pipe 51. The dehumidification filter plate 53 installed inside (which is provided with hygroscopic materials such as activated carbon and limestone) The moisture in the air is adsorbed by the device, and then it is sprayed out from the replaced nozzle through the air delivery pipe 37 and the connecting pipe 30, and the air entering the device is made more uniform by the third motor 36, the eccentric wheel 35, the connecting rod 34 and other structures. When it is necessary to reduce the humidity inside the device and increase the temperature, the air inside the box 40 can be heated by the power supply 47 and the heating pipe 48, and the heated air is transported to the inside of the device through the above structure, thereby reducing the humidity inside the device and increasing the temperature inside the device. When adjusting the temperature and humidity inside the device, the size of the slot opened on the top of the housing 2 can be adjusted by the first telescopic rod 5 and the movable plate 4 to improve the adjustment effect of the temperature and humidity inside the device. After the temperature and humidity inside the device are adjusted, the second telescopic rod 20 drives the mounting frame 19 to move downward inside the mounting box 17, drives the mounting plate 21 and the pressing plate 28 to move downward to bend the plywood, and under the action of the pressure sensor 27, the pressure on the plywood is detected in real time and transmitted to the display screen 6 for display. At the same time, under the action of the infrared rangefinder 18, the distance moved by the mounting frame 19 is detected and transmitted to the display screen 6 for display, so that the pressure on the plywood can be detected. While the plywood is being bent, the plywood is detected under the action of the visual sensor 23 and the ultrasonic detection device 22, and the data is transmitted to the display screen 6 for display, so as to judge whether the plywood is damaged, and obtain the bearing capacity of the phenolic resin fast-growing poplar plywood, and complete the test.

[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 rangefinder 18, the visual sensor 23, and the pressure sensor 27 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method 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 rangefinder 18, the visual sensor 23, and the pressure sensor 27 are no longer explained in detail.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Phenolic resin fast-growing poplar plywood ultimate bearing capacity testing device, characterized by: The invention comprises a workbench (1), wherein a shell (2) is fixedly mounted on the top of the workbench (1), two temperature sensors (8) are fixedly mounted on the inner surface wall of the shell (2), two humidity sensors (9) are fixedly mounted on the inner surface wall of the shell (2), a mounting groove (29) is provided on one side of the outer wall of the shell (2), a connecting pipe (30) is movably inserted into the inner surface wall of the mounting groove (29), a transmission wheel (31) is fixedly sleeved on the outer surface wall of the connecting pipe (30), two limit blocks (32) are fixedly mounted on one side of the outer wall of the shell (2), a tooth row (33) is movably inserted between the inner surface walls of the two limit blocks (32), and one side of the outer wall of the tooth row (33) is in contact with the transmission wheel (31). The outer wall of the moving wheel (31) is meshed and connected, the inner wall of the tooth row (33) is movably connected with a linkage rod (34), a third motor (36) is fixedly mounted on one side of the outer wall of the housing (2), an eccentric wheel (35) is fixedly sleeved on the output end of the third motor (36), and the outer wall of the eccentric wheel (35) is movably connected with the inner wall of the linkage rod (34), the outer wall of the connecting pipe (30) is fixedly connected with an air pipe (37), the outer wall of the connecting pipe (30) is fixedly connected with a water pipe (38), the inner walls of the water pipe (38) and the air pipe (37) are both provided with valves (39), and a box (40) is fixedly mounted on the bottom of the inner wall of the workbench (1).

2. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to claim 1, characterized in that: A top cover (41) is fixedly mounted on the top of the box body (40), a movable cover (42) is provided on the inner wall of the top cover (41), a water injection port (43) is provided on the top of the top cover (41), a cooling device (44) is fixedly mounted on the top of the top cover (41), a cooling pipe (45) is provided on the outer wall of the cooling device (44), and the cooling pipe (45) is arranged inside the box body (40), a circulating pump (46) is fixedly mounted on the top of the top cover (41), and a circulating pump (46) is provided on the outer wall of the cooling pipe (45), a power supply (47) is fixedly mounted on the top of the top cover (41), a heating pipe (48) is provided on the outer wall of the power supply (47), and the heating pipe (48) is arranged inside the box body (40), and a water pump (49) is fixedly mounted on the inner wall of the workbench (1).

3. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to claim 2, characterized in that: The water pump (49) is connected to the outer wall of the box body (40) through a pipeline, and the outer wall of the water pump (49) is fixedly connected to the outer wall of the water pipe (38). A dehumidification box (50) is fixedly installed at the bottom of the inner wall of the workbench (1), and one side of 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). One side of the outer wall of the dehumidification box (50) is fixedly connected to a connecting pipe (51). An air pump (52) is fixedly installed at the bottom of the inner wall of the workbench (1). The air pump (52) is connected to the outer wall of the box body (40) through a pipeline, and the outer wall of the air pump (52) is fixedly connected to the outer wall of the connecting pipe (51).

4. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood 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 mounted with a first telescopic rod (5), and the telescopic end of the first telescopic rod (5) is fixedly connected to 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 operating table (7), the top of the workbench (1) is provided with two groups of movable grooves (10), movable frames (11) are movably embedded between the inner walls of the two groups of movable grooves (10), the inner walls of the two movable frames (11) are movably embedded with support wheels (12), and a bidirectional screw rod (13) is movably inserted between the inner walls of the two movable frames (11).

5. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to claim 4, characterized in that: A first gear (14) is fixedly sleeved on the outer wall of the bidirectional screw rod (13); a first motor (15) is fixedly mounted on one side of the outer wall of the workbench (1); a second gear (16) is fixedly sleeved on the output end of the first motor (15); and the outer wall of the second gear (16) is meshingly connected with the outer wall of the first gear (14).

6. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to claim 5, characterized in that: A mounting box (17) is fixedly mounted on the top of the inner wall of the housing (2), an infrared rangefinder (18) is fixedly mounted on one side of the outer wall of the mounting box (17), and a mounting frame (19) is movably inserted into the inner surface wall of the mounting box (17).

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

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

9. The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood according to claim 8, characterized in that: A group of pressure sensors (27) are fixedly mounted on the inner surface walls of the two groups of movable blocks (24), a pressure plate (28) is arranged between the inner surface 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 pressure plate (28).

10. A method for using a device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood, characterized in that: The device for testing the ultimate bearing capacity of phenolic resin fast-growing poplar plywood as claimed in any one of claims 1 to 9 is used, comprising the following steps: S1. When the test device is used to test the bearing capacity of the phenolic resin fast-growing poplar plywood, the first motor (15) is used to drive the second gear (16) to rotate, and the second gear (14) is used to drive the bidirectional screw rod (13) to rotate, thereby driving the movable frame (11) to move inside the movable groove (10), adjusting the support wheel (12) to a suitable 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), and then, under the action of the second telescopic rod (20), the mounting frame (19) is driven to move in the mounting box. (17) the interior moves downward to a suitable position, and drives the mounting plate (21), the visual sensor (23) and the ultrasonic detection device (22) to a suitable 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 determine whether the plywood is damaged. If the plywood is damaged, it needs to be replaced. If no damage occurs, subsequent tests can be carried out, the side cover (3) is closed, and then, under the action of the temperature sensor (8) and the humidity sensor (9), the temperature and humidity inside the device are detected, and transmitted to the display screen (6) for display; S2. When the humidity inside the device is low, water is injected into the box (40) from the water injection port (43) under the operation of the staff. When the temperature inside the device is too high, after the box (40) is filled with water, the water inside the box (40) is subjected to heat absorption and cooling treatment under the action of the cooling device (44), the circulating pump (46) and the cooling pipe (45). After the water inside the box (40) is cooled, the water inside the box (1) is sucked out under the action of the water pump (49) and sprayed out from the replaced atomizing nozzle through the water delivery pipe (38) and the connecting pipe (30), so as to increase humidity and cool down the inside of the device. At the same time, the third motor (36) Under the action of the eccentric wheel (35), the eccentric wheel (35) is driven to rotate. At the same time, under the action of the connecting rod (34) and the limit block (32), the tooth row (33) is driven to reciprocate. Under the action of the transmission wheel (31), the connecting pipe (30) and the replaced atomizing nozzle are driven to reciprocate, so that the water mist is sprayed more evenly inside the device. When the temperature inside the device needs to be increased, water is sent from the water injection port (43) into the box body (40). Under the action of the power supply (47) and the heating pipe (48), the water inside the box body (40) is heated and sent into the device through the above structure and method to humidify and heat the inside of the device. S3. When it is necessary to lower the humidity and temperature inside the equipment, under the operation of the staff, the water inside the box (40) is sucked out from the water inlet (43) and the movable cover (42) is opened. Then, with the cooperation of the circulation 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 dehumidification box (50) through the connecting pipe (51). Under the action of the dehumidification filter plate (53) installed inside, the air in the air is cooled. The moisture is adsorbed and then sprayed out from the replaced nozzle through the air delivery pipe (37) and the connecting pipe (30). The air entering the interior of the device is made more uniform through the action of the third motor (36), the eccentric wheel (35), the connecting rod (34) and other structures. When it is necessary to reduce the humidity inside the device and increase the temperature, the air inside the box (40) can be heated through the action of the power supply (47) and the heating pipe (48), and the heated air is transported to the interior of the device through the above structure, thereby reducing the humidity inside the device and increasing the temperature inside the device; S4. When adjusting the temperature and humidity inside the device, the size of the notch opened on the top of the housing (2) can be adjusted by the first telescopic rod (5) and the movable plate (4) to improve the adjustment effect of the temperature and humidity inside the device. After the temperature and humidity inside the device are adjusted, the second telescopic rod (20) drives the mounting frame (19) to move downward inside the mounting box (17), drives the mounting plate (21) and the pressing plate (28) to move downward, and the plywood is bent. The pressure sensor (27) is used to adjust the pressure on the plywood. The force is detected in real time and transmitted to the display screen (6) for display. At the same time, the distance moved by the mounting frame (19) is detected under the action of the infrared rangefinder (18) and transmitted to the display screen (6) for display, thereby detecting the pressure on the plywood. While the plywood is being bent, the plywood is detected under the action of the visual sensor (23) and the ultrasonic detection device (22), and the data is transmitted to the display screen (6) for display, thereby determining whether the plywood is damaged and obtaining the bearing capacity of the phenolic resin fast-growing poplar plywood to complete the test.

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