A multifunctional dust environment simulation experimental device

Abstract

The present invention relates to the technical field of dust environment simulation experiments, and proposes a multifunctional dust environment simulation experiment device, comprising an apparatus housing, the bottom of the apparatus housing being connected to a first air guide tube, the top of the first air guide tube being connected to a connecting frame, the connecting frame being fixed to the outer wall of the apparatus housing, a protective frame being fixed in the connecting frame, a first servo motor being installed in the protective frame, an exhaust fan being fixed on the output shaft of the first servo motor, the top of the connecting frame being connected to a second air guide tube, an air flow regulating assembly being installed on the top of the apparatus housing, the air flow regulating assembly including a ventilator. Through the above technical solution, the problem that the dust environment simulation experiment device in the prior art is relatively single in functionality, cannot accurately control the air flow delivery amount, delivery direction and distribution range according to actual needs, and thus cannot accurately simulate various dust environment conditions is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust environment simulation experiments, and in particular to a multifunctional dust environment simulation experiment device. Background Art

[0002] Environmental simulation experiments expose products to natural or artificial environmental conditions to evaluate their performance under actual use, transportation, and storage conditions, and analyze and study the impact of environmental factors and their mechanisms of action. The dust environment simulation test device simulates real dust environmental conditions to comprehensively evaluate the working performance of product equipment under different dust environment conditions, providing an important reference for product design and improvement.

[0003] However, there are some problems in the actual working process of the existing dust environment simulation experimental device. For example, a dust environment simulation device with publication number CN103234573A can change the dust conveying volume during operation, and thus can conveniently adjust the dust concentration in the test section in real time, but its functionality is relatively single, and it cannot accurately control the airflow conveying volume, conveying direction and distribution range according to actual needs, and thus cannot accurately simulate various dust environment conditions, and thus cannot meet the research, testing or application needs in different fields. It has poor practicality. Therefore, it is necessary to provide a multifunctional dust environment simulation experimental device to meet the needs of users. Summary of the Invention

[0004] The present invention proposes a multifunctional dust environment simulation experimental device, which solves the problem that the dust environment simulation experimental device in the related art has relatively single functionality, cannot accurately control the airflow delivery volume, delivery direction and distribution range according to actual needs, and thus cannot accurately simulate various dust environment conditions.

[0005] The technical solutions of the present invention are as follows:

[0006] A multifunctional dust environment simulation experimental device comprises a device shell, the bottom of the device shell is connected to a first air guide pipe, the top of the first air guide pipe is connected to a connecting frame, the connecting frame is fixed to the outer wall of the device shell, a protective frame is fixed in the connecting frame, an electric heating pipe is installed in the connecting frame, a first servo motor is installed in the protective frame, an exhaust fan is fixed on the output shaft of the first servo motor, the top of the connecting frame is connected to a second air guide pipe, an air flow adjustment component is installed on the top of the device shell, the air flow adjustment component comprises a ventilator, the ventilator is fixed to the top of the device shell, a first fixing plate is fixed in the ventilator, a first guide groove is provided at the bottom of the first fixing plate, a guide rod is limitedly slidably connected in the first guide groove, a baffle is fixedly connected to the guide rod, and a worm is rotatably connected to the top surface of the device shell, and the worm is rotated The worm gear is meshedly connected, and the worm gear is rotatably connected to the ventilation cylinder through a sealed bearing, and a through hole is formed on the first fixing plate and the worm gear, and the top of the worm gear is provided with a second guide groove, and the bottom limit sliding connection of the guide rod is connected to the second guide groove, the bottom side end of the ventilation cylinder is connected to the first connecting hose, and the other end of the first connecting hose is connected to the ventilation pipe, the middle of the ventilation pipe is fixedly connected to the second connecting hose, the top of the ventilation pipe is fixedly connected to the connecting plate, and the first one-way threaded rod is threadedly connected to the connecting plate, the second fixing plate is fixed in the device housing, the second fixing plate is provided with a first limiting groove, the second fixing plate is rotatably connected to the driving shaft, the top of the driving shaft is fixed with a second rotated disk, the second rotated disk is provided with a second limiting groove, and the ventilation pipe is slidably connected to the first limiting groove and the second limiting groove.

[0007] As a preferred solution of the present invention, in order to be able to adjust the temperature inside the device conveniently and accurately, wherein: a partition plate is fixed in the device shell, a thermal insulation frame is fixed on the top surface of the device shell, a refrigeration plate is installed on the side end of the thermal insulation frame, a spiral rod is rotatably connected in the thermal insulation frame, a second stirring rod is fixed on the spiral rod, the spiral rod is arranged in the conveying cylinder, the conveying cylinder is fixedly connected to the bottom of the thermal insulation frame, the bottom end of the conveying cylinder is connected to a temperature conducting pipe, the temperature conducting pipe is installed in the partition plate, and the bottom of the device shell is rotatably connected to a rotating The rotating shaft and the partition plate are rotatably connected, a first bevel gear is fixed to the top end of the rotating shaft, a second bevel gear is meshed with the first bevel gear, the partition plate is fixedly connected to the middle part of the inner shell of the device, the partition plate and the thermal conduction tube are made of the same material, the middle part of the thermal conduction tube is in a continuous "S" shape, the thickness of the partition plate is greater than the diameter of the thermal conduction tube, the refrigeration plates are symmetrically distributed on both sides of the thermal insulation frame, the conveying cylinder is arranged at the bottom center of the thermal insulation frame, and the length of the conveying cylinder is less than the length of the spiral rod.

[0008] As a preferred solution of the present invention, in order to enable convenient and stable recycling and reuse of used dust, the device housing is provided with a through slot, a rubber pad is fixedly connected to the through slot, a collection net frame is slidably connected to the through slot, the collection net frame is a small-aperture net plate, a first magnetic plate is fixedly connected to the end of the collection net frame, the first magnetic plate is magnetically adsorbed and connected to the device housing, a door panel is installed on the device housing, a dust concentration detector and a temperature and humidity detector are installed on the outer wall of the device housing, a first detection head and a second detection head are installed on the inner wall of the device housing, the dust concentration detector is connected to the first detection head via a cable, and the temperature and humidity detector is connected to the second detection head via a cable, the rubber pads are symmetrically distributed on the upper and lower sides of the through slot, and the rubber pads on both sides are in contact with each other, the collection net frame is symmetrically distributed on both sides of the partition plate, the side end faces of the collection net frame are in contact with the inner wall of the device housing, and the collection net frame is in contact with the side end faces of the partition plate, and the length and width of the first magnetic plate are respectively greater than the length and width of the through slot.

[0009] As a preferred solution of the present invention, in order to be able to conveniently and stably clamp, fix and position the products of the testing experiment, and ensure the stability and accuracy of its subsequent experimental work, wherein: a fixed mesh plate is fixed in the device shell, the fixed mesh plate is a large-aperture mesh plate, and a two-way threaded rod is rotatably connected in the fixed mesh plate, the second bevel gear is fixed to the end of the two-way threaded rod, the two-way threaded rod is threaded with a clamping plate, the clamping plate is limitedly slidably connected to the fixed mesh plate, and a positioning block is fixed on the clamping plate, the fixed mesh plate is symmetrically distributed on both sides of the partition plate, the fixed mesh plate and the partition plate are fixed to each other, the fixed mesh plate corresponds to the second bevel gear one by one through the two-way threaded rod, the two-way threaded rod is connected to the middle part of the fixed mesh plate, the clamping plates are symmetrically distributed on both sides of the two-way threaded rod, the positioning blocks are symmetrically distributed on both sides of the clamping plate, and the cross-section of the positioning block is a right triangle.

[0010] As a preferred solution of the present invention, in order to prevent dust from being deposited inside the device when the air flow speed is slow, causing changes in the dust environment concentration inside the device and affecting the accuracy of subsequent experimental results, and at the same time preventing the deposited dust from causing other adverse effects on the test product, the first air guide pipes are symmetrically distributed on both sides of the bottom of the device housing, the first air guide pipes correspond one-to-one with the second air guide pipes through the connecting frame, the second air guide pipes correspond one-to-one with the ventilation duct, the vertical center line of the ventilation duct, the vertical center line of the second fixing plate, and the vertical center of the end of the first air guide pipe are located on the same vertical line, the first guide groove is a regular hexagon, six guide rods are provided, and the six guide rods are distributed at equal angles in the first guide groove, and the guide rods correspond one-to-one with the second guide groove and the baffle respectively, and adjacent baffles are in contact with each other, the top surface of the baffle is in contact with the bottom surface of the first fixing plate, and the bottom surface of the baffle is in contact with the top surface of the worm gear, and the diameter of the worm gear is larger than the diameter of the ventilation duct.

[0011] As a preferred solution of the present invention, wherein: there are four first limit grooves, the four first limit grooves are distributed at equal angles on the second fixed plate, the first limit grooves correspond one-to-one to the second limit grooves, the first limit grooves correspond one-to-one to the first connecting hoses through the ventilation pipe, the second turntable is located directly above the second fixed plate, the second fixed plate is fitted with the second turntable, the second limit groove is inclined, the width of the second limit groove is equal to the width of the first limit groove, the width of the first limit groove is greater than the diameter of the ventilation pipe, the diameter of the connecting plate is greater than the width of the first limit groove, and the first one-way threaded rods are symmetrically distributed on both sides of the connecting plate.

[0012] As a preferred solution of the present invention, in order to be able to conveniently and accurately adjust the dust concentration inside the device casing, and thus to further accurately simulate different dust environment conditions, wherein: a dust supply component is installed on the top of the device casing, and the dust supply component includes a support plate and a first feed chute, the first feed chute is opened through the top of the ventilation tube and the support plate, the support plate is fixed on the top surface of the ventilation tube, a second servo motor is fixed on the top surface of the device casing, a storage frame is fixed on the top surface of the device casing, a first circular gear is fixed on the output shaft of the second servo motor, a second circular gear is meshed with the first circular gear, the bottom end of the second circular gear is fixed to the top of the screw rod, and the top of the second circular gear A driven shaft is fixed, and a second material discharge trough is opened through the bottom of the storage frame, and a third turntable is fixed on the driven shaft, and a transfer trough is opened through the third turntable, the first material discharge trough is symmetrically distributed on the left and right sides of the support plate, and the second material discharge trough is symmetrically distributed on the front and back sides of the bottom of the storage frame, the shape and size of the first material discharge trough are the same as the shape and size of the second material discharge trough, the length and width of the first material discharge trough are respectively larger than the length and width of the transfer trough, and the transfer troughs are symmetrically distributed on both sides of the third turntable, the top surface of the third turntable is in contact with the bottom end surface of the storage frame, and the bottom end surface of the third turntable is in contact with the top surface of the support plate, the diameter of the support plate and the diameter of the third turntable are the same as the diameter of the storage frame, and the third turntable is made of transparent material.

[0013] The top of described sliding panel also is provided with an interlocking device, and the interlocking device is to be connected with the interlocking gear of interlocking gear. The interlocking gear is connected with the interlocking gear of interlocking gear.

[0014] As a preferred solution of the present invention, in order to be able to perform all-round and uniform stirring treatment on the stored dust and avoid the dust from clumping during long-term storage, which affects the subsequent simulation experiment work, the connecting rods are distributed at equal angles on the driven shaft, the connecting rods are in contact with the inner wall of the storage frame, the first stirring rods are symmetrically distributed on both sides of the connecting rods, the adjustment plate corresponds to the transfer trough one by one, the length and width of the adjustment plate are respectively equal to the width and depth of the transfer trough, the adjustment plate is in contact with the inner wall of the transfer trough, and the top surface of the adjustment plate, the top surface of the rubber plate and the top surface of the transfer trough are flush.

[0015] As a preferred solution of the present invention, the electric heating tube is spiral-shaped, and is evenly distributed in the connecting frame. The end of the first guide tube is connected to the bottom center of the connecting frame, and the bottom end of the second guide tube is connected to the top center of the connecting frame. The door panel is made of transparent material.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. The present invention is provided with an air flow adjustment component, which utilizes the rotation of the second turntable and the joint limiting action of the first limiting groove and the second limiting groove to move each ventilation pipe toward the middle or side at the same time, and utilizes the rotation of the first one-way threaded rod to push the bottom of the ventilation pipe to tilt toward the middle or side, thereby conveniently adjusting the direction of the dust-doped airflow and the distribution range of the airflow; and utilizes the meshing drive of the worm and the worm gear and the joint limiting action of the first guide groove and the second guide groove to move each baffle and simultaneously perform offset translation, thereby conveniently adjusting the size of the ventilation duct's vent, thereby accurately controlling the airflow delivery amount; by adjusting the delivery direction, distribution range and delivery amount of the airflow, various dust environment conditions can be accurately simulated to meet the research, testing or application requirements in different fields.

[0018] 2. The present invention is provided with a dust supply assembly, which is driven by the meshing of the first circular gear and the second circular gear, and can drive each connecting rod to rotate through the driven shaft. In conjunction with the third circular gear and the internal gear, it can drive each first stirring rod to automatically rotate during the revolution, thereby being able to perform all-round and uniform stirring treatment on the stored dust, thereby preventing the dust from agglomerating during long-term storage, thereby affecting subsequent simulation experimental work. At the same time, the driven shaft can drive the third turntable to rotate continuously, thereby driving the transfer trough to be intermittently aligned with the first and second discharge troughs, so that the dust in the storage frame can be intermittently and quantitatively discharged through the second discharge trough, the transfer trough and the first discharge trough, and in conjunction with the first guide pipe, the connecting frame and the second guide pipe, the dust air can be driven to circulate stably inside the device casing. By adjusting the storage space inside the transfer trough, the dust concentration inside the device casing can be conveniently and accurately adjusted, thereby further accurately simulating different dust environment conditions, thereby increasing the diversity and convenience of the device.

[0019] 3. The present invention is provided with a first guide tube, an electric heating tube and a refrigeration plate. When it is necessary to adjust and lower the temperature inside the device shell, the driven shaft is driven to rotate forward by the first circular gear and the second circular gear. At this time, the feeding direction of the spiral rod inside the conveying cylinder is downward, so that the coolant in the insulation frame can be circulated and transported through the temperature guide tube, and the temperature inside the device shell can be adjusted and lowered by using the heat exchange principle; when it is necessary to adjust and increase the temperature inside the device shell, the staff can control the number of opened electric heating tubes to heat the circulating gas, thereby conveniently adjusting and raising the temperature inside the device shell. When it is necessary to further increase the temperature, the driven shaft can be driven to rotate in the opposite direction by the first circular gear and the second circular gear. At this time, the feeding direction of the spiral rod inside the conveying cylinder is upward. At this time, the spiral rod only has a stirring function and cannot perform spiral feeding. Therefore, the coolant in the temperature guide tube stops flowing and the cooling work stops. Subsequently, by increasing the number of electric heating tubes, the temperature inside the device shell can be further increased, thereby conveniently adjusting the temperature inside the device shell. The structure is simple, the cost is low, and it is easy to promote and use.

[0020] 4. The present invention is provided with a fixed mesh plate and a clamping plate. The meshing drive of the first bevel gear and the second bevel gear can drive the bidirectional threaded rods in the fixed mesh plates on both sides to rotate simultaneously. The rotation of the bidirectional threaded rods can drive the clamping plates on both sides to move toward the middle at the same time. In conjunction with the positioning block, the product to be tested can be conveniently and stably clamped and positioned at the center. By simultaneously testing two identical products in the same dust environment and comparing and analyzing the test results, errors in the test results can be avoided.

[0021] 5. The present invention is provided with a collecting net frame, which utilizes the continuous rotation of the exhaust fan, cooperates with the first guide pipe, the connecting frame and the second guide pipe to drive the dust air to circulate stably in the vertical direction inside the device shell, thereby preventing dust from being deposited inside the device when the air flow speed is slow, resulting in changes in the dust environment concentration inside the device, affecting the accuracy of subsequent experimental results, and at the same time preventing the deposited dust from causing other adverse effects on the test product; after the experimental work is completed, the collecting net frame is pushed into the device shell, and the air circulating inside the device shell can be filtered by using the collecting net frame, so that the used dust can be conveniently and stably collected, ensuring the convenience of subsequent reuse, reducing experimental costs, and improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection structure between the connection frame and the protection frame of the present invention;

[0025] Figure 3 This is a schematic diagram of the connection structure between the adjustment plate and the rubber plate of the present invention;

[0026] Figure 4 This is a schematic diagram of the main cross-sectional structure of the housing of the device of the present invention;

[0027] Figure 5 This invention Figure 4 A in the middle is an enlarged structural diagram;

[0028] Figure 6 This is a schematic diagram of the main cross-sectional structure of the connection frame of the present invention;

[0029] Figure 7 This is a schematic diagram of the top cross-sectional structure of the connection frame of the present invention;

[0030] Figure 8 This is a schematic diagram of the main cross-sectional structure of the ventilation duct of the present invention;

[0031] Figure 9 This is a schematic diagram of the worm gear structure from above;

[0032] Figure 10 This is a schematic diagram of the cross-sectional structure of the ventilation duct of the present invention;

[0033] Figure 11 This is a schematic diagram of the baffle structure of the present invention when viewed from above;

[0034] Figure 12 This is a bottom view of the structure of the first guide groove of the present invention;

[0035] Figure 13 This is a schematic diagram of the main cross-sectional structure of the second fixing plate of the present invention;

[0036] Figure 14 This is a bottom view of the structure of the second fixing plate of the present invention;

[0037] Figure 15 This is a schematic diagram of the bottom-up structure of the second turntable of the present invention;

[0038] Figure 16 This is a schematic diagram of the main cross-sectional structure of the material storage frame of the present invention;

[0039] Figure 17 Schematic diagram of the structure of the rubber sheet of the present invention;

[0040] Figure 18 This is a schematic diagram of the top cross-sectional structure of the third turntable of the present invention;

[0041] Figure 19 This is a schematic diagram of the top view of the second feeding chute of the present invention;

[0042] Figure 20 This is a schematic diagram of the upward section structure of the material storage frame of the present invention;

[0043] Figure 21 This is a schematic side view of the structure of the thermal conductive tube of the present invention;

[0044] Figure 22 This is a schematic diagram of the top view of the clamping plate of the present invention;

[0045] Figure 23 This is a schematic diagram of the side cross-sectional structure of the collecting screen frame of the present invention;

[0046] Figure 24 This is a schematic diagram of the side cross-sectional structure of the rubber pad of the present invention;

[0047] Figure 25 It is a side view structural diagram of the dust concentration detector of the present invention.

[0048] Figure: 1, device housing; 2, first air guide tube; 3, connecting frame; 4, protective frame; 5, first servo motor; 6, exhaust fan; 7, second air guide tube; 8, air flow adjustment assembly; 801, ventilator; 802, first fixing plate; 803, through hole; 804, first guide groove; 805, guide rod; 806, baffle; 807, worm; 808, worm gear; 809, second guide groove; 810, first connecting hose; 811, through hole Duct; 812, second connecting hose; 813, connecting plate; 814, first one-way threaded rod; 815, second fixing plate; 816, first limiting groove; 817, driving shaft; 818, second turntable; 819, second limiting groove; 9, dust supply assembly; 901, supporting plate; 902, first feeding chute; 903, second servo motor; 904, first circular gear; 905, second circular gear; 906, driven shaft; 907, connecting Connecting rod; 908, first stirring rod; 909, third circular gear; 910, internal gear; 911, material storage frame; 912, feeding funnel; 913, second magnetic plate; 914, third turntable; 915, transfer trough; 916, second one-way threaded rod; 917, adjustment plate; 918, rubber plate; 919, second discharge trough; 10, partition plate; 11, insulation frame; 12, cooling plate; 13, screw rod; 14, second stirring rod; 15 , conveying cylinder; 16. temperature conducting tube; 17. electric heating tube; 18. fixed screen; 19. bidirectional threaded rod; 20. clamping plate; 21. positioning block; 22. rotating shaft; 23. first bevel gear; 24. second bevel gear; 25. through groove; 26. rubber pad; 27. collecting screen frame; 28. first magnetic plate; 29. ​​door panel; 30. dust concentration detector; 31. first detection head; 32. temperature and humidity detector; 33. second detection head. DETAILED DESCRIPTION

[0049] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments 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 making any creative efforts are within the scope of protection of the present invention.

[0050] Example 1

[0051] like Figures 1 to 25As shown, this embodiment proposes a multifunctional dust environment simulation experimental device, including a device shell 1, the bottom of the device shell 1 is connected to a first air guide pipe 2, the top of the first air guide pipe 2 is connected to a connecting frame 3, the connecting frame 3 is fixed to the outer wall of the device shell 1, a protective frame 4 is fixed in the connecting frame 3, an electric heating pipe 17 is installed in the connecting frame 3, a first servo motor 5 is installed in the protective frame 4, an exhaust fan 6 is fixed on the output shaft of the first servo motor 5, the top of the connecting frame 3 is connected to a second air guide pipe 7, an air flow adjustment component 8 is installed on the top of the device shell 1, the air flow adjustment component 8 includes a ventilator 801, the ventilator 801 is fixed to the top of the device shell 1, a first fixing plate 802 is fixed in the ventilator 801, and the first fixing plate 802 is fixed in the ventilator 801. A first guide groove 804 is provided at the bottom of 02, and a guide rod 805 is slidingly connected in the first guide groove 804, and a baffle 806 is fixedly connected to the guide rod 805. A worm 807 is rotatably connected to the top surface of the device housing 1, and a worm wheel 808 is meshed and connected to the worm 807. The worm wheel 808 is rotatably connected to the ventilation tube 801 through a sealed bearing. A through hole 803 is penetrated and provided on the first fixed plate 802 and the worm wheel 808. A second guide groove 809 is provided on the top of the worm wheel 808. The bottom of the guide rod 805 is slidingly connected in the second guide groove 809. The bottom side end of the ventilation tube 801 is connected to a first connecting hose 810, and the other end of the first connecting hose 810 is connected to a ventilation pipe 811. The ventilation pipe 811 The middle part is fixedly connected with a second connecting hose 812, the top of the ventilation pipe 811 is fixedly connected with a connecting plate 813, the connecting plate 813 is threadedly connected with a first one-way threaded rod 814, a second fixing plate 815 is fixed in the device housing 1, the second fixing plate 815 is penetrated with a first limiting groove 816, the second fixing plate 815 is rotatably connected with a driving shaft 817, the top of the driving shaft 817 is fixed with a second turntable 818, the second turntable 818 is penetrated with a second limiting groove 819, the ventilation pipe 811 is slidably connected in the first limiting groove 816 and the second limiting groove 819, and the rotation of the second turntable 818 can be used to move the ventilation pipes 811 under the joint limiting action of the first limiting groove 816 and the second limiting groove 819. The air duct 811 moves toward the middle or side at the same time, and the rotation of the first one-way threaded rod 814 can push the bottom of the ventilation duct 811 to tilt toward the middle or side, so that the direction of the dust-doped airflow and the distribution range of the airflow can be conveniently adjusted; and by utilizing the meshing drive of the worm 807 and the worm wheel 808, under the joint limiting action of the first guide groove 804 and the second guide groove 809, the various baffles 806 can be moved and displaced at the same time, so that the size of the ventilation port of the ventilation tube 801 can be conveniently adjusted, thereby accurately controlling the airflow delivery amount; by adjusting the delivery direction, distribution range and delivery amount of the airflow, various dust environment conditions can be accurately simulated to meet the research, testing or application needs in different fields.

[0052] Example 2

[0053] like Figures 1 to 25 As shown, based on Example 1, this example further proposes a multifunctional dust environment simulation experimental device.

[0054] In this embodiment, a partition plate 10 is fixed in the device housing 1, a thermal insulation frame 11 is fixed on the top surface of the device housing 1, a refrigeration plate 12 is installed on the side end of the thermal insulation frame 11, a screw rod 13 is rotatably connected in the thermal insulation frame 11, a second stirring rod 14 is fixed on the screw rod 13, the screw rod 13 is arranged in a conveying cylinder 15, the conveying cylinder 15 is fixedly connected to the bottom of the thermal insulation frame 11, the bottom end of the conveying cylinder 15 is connected to a temperature conducting pipe 16, the temperature conducting pipe 16 is installed in the partition plate 10, the bottom of the device housing 1 is rotatably connected to a rotating shaft 22, and the rotating shaft 22 is connected to the partition plate 10. The first bevel gear 23 is fixed to the top of the rotating shaft 22, and the second bevel gear 24 is meshed with the first bevel gear 23. The partition plate 10 is fixedly connected to the middle part of the device housing 1. The partition plate 10 is made of the same material as the temperature conducting tube 16. The middle part of the temperature conducting tube 16 is in a continuous "S" shape. The thickness of the partition plate 10 is greater than the diameter of the temperature conducting tube 16. The refrigeration fins 12 are symmetrically distributed on both sides of the insulation frame 11. The conveying cylinder 15 is arranged at the bottom center of the insulation frame 11. The length of the conveying cylinder 15 is less than the length of the screw rod 13. The wheel 904 and the second circular gear 905 drive the driven shaft 906 to rotate forward. At this time, the feeding direction of the screw rod 13 inside the conveying cylinder 15 is downward, so the coolant in the insulation frame 11 can be circulated and transported through the temperature conducting pipe 16, and the temperature inside the device shell 1 can be adjusted and lowered by using the heat exchange principle; when it is necessary to adjust and increase the temperature inside the device shell 1, the staff can control the number of electric heating pipes 17 to heat the circulating gas, thereby conveniently adjusting and increasing the temperature inside the device shell 1, and when it is necessary to adjust and increase the temperature inside the device shell 1 When the temperature is further increased, the driven shaft 906 can be driven to rotate in the opposite direction by the first circular gear 904 and the second circular gear 905. At this time, the feeding direction of the spiral rod 13 inside the conveying cylinder 15 is upward. At this time, the spiral rod 13 only has a stirring function and cannot perform spiral feeding. Therefore, the coolant inside the temperature guide tube 16 stops flowing and the cooling work is stopped. Subsequently, by increasing the number of electric heating tubes 17, the internal temperature of the device shell 1 can be further increased, and the internal temperature of the device shell 1 can be conveniently adjusted. The structure is simple, the cost is low, and it is easy to promote and use.

[0055] In this embodiment, a through slot 25 is provided on the device housing 1, a rubber pad 26 is fixedly connected in the through slot 25, a collecting mesh frame 27 is slidably connected in the through slot 25, and the collecting mesh frame 27 is a small-aperture mesh plate. The end of the collecting mesh frame 27 is fixedly connected to a first magnetic plate 28, and the first magnetic plate 28 is magnetically adsorbed and connected to the device housing 1. A door panel 29 is installed on the device housing 1. A dust concentration detector 30 and a temperature and humidity detector 32 are installed on the outer wall of the device housing 1. A first detection head 31 and a second detection head 33 are installed on the inner wall of the device housing 1. The dust concentration detector 30 is connected to the first detection head 31 through a cable, and the temperature and humidity detector 32 is connected to the second detection head 33 through a cable. The rubber pads 26 are symmetrically distributed on the upper and lower sides of the through groove 25, and the rubber pads 26 on both sides fit together. The collecting net frame 27 is symmetrically distributed on both sides of the partition plate 10, and the side end faces of the collecting net frame 27 fit the inner wall of the device shell 1. The collecting net frame 27 fits the side end faces of the partition plate 10, and the length and width of the first magnetic plate 28 are respectively greater than the length and width of the through groove 25. By pushing the collecting net frame 27 into the inside of the device shell 1, the collecting net frame 27 can be used to filter the air circulating inside the device shell 1, and then the dust after use can be conveniently and stably collected, ensuring the convenience of subsequent reuse, reducing experimental costs, and improving the working efficiency of the device.

[0056] In this embodiment, a fixed mesh plate 18 is fixed in the device housing 1, and the fixed mesh plate 18 is a large-aperture mesh plate. A bidirectional threaded rod 19 is rotatably connected in the fixed mesh plate 18, and the second bevel gear 24 is fixed to the end of the bidirectional threaded rod 19. The bidirectional threaded rod 19 is threadedly connected to a clamping plate 20, and the clamping plate 20 is limitedly slidably connected to the fixed mesh plate 18. A positioning block 21 is fixed on the clamping plate 20. The fixed mesh plates 18 are symmetrically distributed on both sides of the partition plate 10. The fixed mesh plates 18 and the partition plate 10 are fixed to each other. The fixed mesh plates 18 correspond one to one with the second bevel gear 24 through the bidirectional threaded rod 19. The bidirectional threaded rod 19 is connected to the middle part of the fixed mesh plate 18. 20 is symmetrically distributed on both sides of the bidirectional threaded rod 19, and the positioning blocks 21 are symmetrically distributed on both sides of the clamping plate 20. The cross section of the positioning blocks 21 is a right triangle. The meshing drive of the first bevel gear 23 and the second bevel gear 24 can drive the bidirectional threaded rods 19 in the fixed mesh plates 18 on both sides to rotate at the same time. The rotation of the bidirectional threaded rods 19 can drive the clamping plates 20 on both sides to move toward the middle at the same time. In conjunction with the positioning blocks 21, the product to be tested can be conveniently and stably clamped and positioned at the center. By simultaneously testing two identical products in the same dust environment and comparing and analyzing the test results, errors in the test results can be avoided.

[0057] In this embodiment, the first air guide pipe 2 is symmetrically distributed on both sides of the bottom of the device housing 1. The first air guide pipe 2 corresponds to the second air guide pipe 7 one by one through the connecting frame 3. The second air guide pipe 7 corresponds to the ventilation tube 801 one by one. The vertical center line of the ventilation tube 801, the vertical center line of the second fixing plate 815 and the vertical center of the end of the first air guide pipe 2 are located on the same vertical line. The first guide groove 804 is a regular hexagon. There are six guide rods 805. The six guide rods 805 are distributed at equal angles in the first guide groove 804. The guide rods 805 correspond to the second guide groove 809 and the baffle 806 one by one, respectively. The adjacent baffles 806 fit together. The top surface of the baffle 806 fits with the bottom surface of the first fixing plate 802. The bottom surface of the baffle 806 fits with the top surface of the worm gear 808. The diameter of the wheel 808 is larger than the diameter of the ventilation tube 801. There are four first limiting grooves 816. The four first limiting grooves 816 are distributed at equal angles on the second fixed plate 815. The first limiting groove 816 corresponds one-to-one to the second limiting groove 819. The first limiting groove 816 corresponds one-to-one to the first connecting hose 810 through the ventilation pipe 811. The second turntable 818 is located directly above the second fixed plate 815. The second fixed plate 815 fits the second turntable 818. The second limiting groove 819 is inclined. The width of the second limiting groove 819 is equal to the width of the first limiting groove 816. The width of the first limiting groove 816 is larger than the diameter of the ventilation pipe 811. The diameter of the connecting plate 813 is larger than the width of the first limiting groove 816. The first one-way threaded rod 814 is symmetrically distributed on both sides of the connecting plate 813.

[0058] In this embodiment, a dust supply assembly 9 is installed on the top of the device housing 1. The dust supply assembly 9 includes a support plate 901 and a first discharge chute 902. The first discharge chute 902 is opened through the top of the ventilation tube 801 and the support plate 901. The support plate 901 is fixed on the top surface of the ventilation tube 801. A second servo motor 903 is fixed on the top surface of the device housing 1. A storage frame 911 is fixed on the top surface of the device housing 1. A first circular gear 904 is fixed on the output shaft of the second servo motor 903. A second circular gear 905 is meshed with the first circular gear 904. The bottom end of the second circular gear 905 is fixed to the top of the screw rod 13. The second circular gear 905 The top of the material storage frame 911 is fixed with a driven shaft 906, and the bottom of the material storage frame 911 is provided with a second material discharge trough 919. The driven shaft 906 is fixed with a third turntable 914, and the third turntable 914 is provided with a transfer trough 915. The first material discharge trough 902 is symmetrically distributed on the left and right sides of the support plate 901, and the second material discharge trough 919 is symmetrically distributed on the front and back sides of the bottom of the material storage frame 911. The shape and size of the first material discharge trough 902 are the same as those of the second material discharge trough 919. The length and width of the first material discharge trough 902 are respectively larger than the length and width of the transfer trough 915. The transfer troughs 915 are symmetrically distributed on both sides of the third turntable 914, and the top surface of the third turntable 914 is aligned with the bottom surface of the material storage frame 911. The third turntable 914 is fitted with the top surface of the supporting plate 901. The diameter of the supporting plate 901 and the diameter of the third turntable 914 are the same as the diameter of the storage frame 911. The third turntable 914 is made of a transparent material. The connecting rods 907 are distributed at equal angles on the driven shaft 906. The connecting rods 907 are fitted with the inner wall of the storage frame 911. The first stirring rods 908 are symmetrically distributed on both sides of the connecting rod 907. The adjusting plates 917 correspond to the transfer grooves 915 one by one. The length and width of the adjusting plates 917 are equal to the width and depth of the transfer grooves 915 respectively. The adjusting plates 917 are fitted with the inner wall of the transfer grooves 915. The top surface of the adjusting plate 917, the top surface of the rubber plate 918 and the transfer grooves 915 are fitted. The top surface of the rotating trough 915 is flush, and the driven shaft 906 can drive the third turntable 914 to rotate continuously, thereby driving the transfer trough 915 to intermittently align with the first discharge trough 902 and the second discharge trough 919. Therefore, the dust in the storage frame 911 can be intermittently and quantitatively discharged through the second discharge trough 919, the transfer trough 915 and the first discharge trough 902. In conjunction with the first guide tube 2, the connecting frame 3 and the second guide tube 7, the dust air can be driven to circulate stably inside the device housing 1. By adjusting the internal storage space of the transfer trough 915, the dust concentration inside the device housing 1 can be conveniently and accurately adjusted, thereby further accurately simulating different dust environment conditions.

[0059] In this embodiment, a connecting rod 907 is fixed to the top of the driven shaft 906, and a first stirring rod 908 is rotatably connected to the connecting rod 907. A third circular gear 909 is fixed to the top of the first stirring rod 908, and an internal gear 910 is meshed and connected to the third circular gear 909. The internal gear 910 is fixed to the inner top surface of the storage frame 911, and a feeding funnel 912 is connected to the top of the storage frame 911. A second magnetic plate 913 is magnetically adsorbed and connected to the top surface of the feeding funnel 912. The driven shaft 906 is rotatably connected to the bottom of the storage frame 911 through a sealed bearing. The inner thread of the third turntable 914 is connected to the second one-way threaded rod 916, and the end of the second one-way threaded rod 916 is rotatably connected to the adjustment plate 917. The adjustment plate 91 7 is connected to the transfer groove 915 with a limited sliding connection. The transfer groove 915 is provided with a scale. The top side end of the adjustment plate 917 is fixedly connected to the rubber plate 918. The other end of the rubber plate 918 is fixedly connected to the inner wall of the transfer groove 915. The side end surface of the rubber plate 918 is in contact with the inner wall of the transfer groove 915. The meshing drive of the first circular gear 904 and the second circular gear 905 can drive each connecting rod 907 to rotate through the driven shaft 906. In conjunction with the third circular gear 909 and the internal gear 910, each first stirring rod 908 can be driven to automatically rotate during the revolution, thereby being able to perform all-round and uniform stirring of the stored dust, thereby preventing the dust from agglomerating during long-term storage and affecting subsequent simulation experiments.

[0060] In this embodiment, the electric heating tube 17 is spiral-shaped and is evenly distributed in the connecting frame 3. The end of the first air guide tube 2 is connected to the bottom center of the connecting frame 3, and the bottom end of the second air guide tube 7 is connected to the top center of the connecting frame 3. The door panel 29 is made of a transparent material. The staff can observe the working conditions inside the device through the door panel 29. In combination with the first air guide tube 2, the connecting frame 3 and the second air guide tube 7, the dust air can be driven to circulate stably in the vertical direction inside the device casing 1, thereby preventing dust from being deposited inside the device when the air flow speed is slow, resulting in changes in the dust environment concentration inside the device, affecting the accuracy of subsequent experimental results.

[0061] It should be noted that the present invention is a multifunctional dust environment simulation experimental device. First, the staff can pull the first magnetic plate 28 outward to pull the collecting net frame 27 out of the through slot 25 through the first magnetic plate 28. After the collecting net frame 27 moves out of the through slot 25, the through slot 25 can be automatically closed under the elastic reset action of the rubber pads 26 on both sides. Then the staff will open the door panels 29 on both sides of the device housing 1. At this time, the staff can place two identical products on the fixed net plates 18 on both sides respectively. After the products are placed, the staff can close the door panels 29. At this time, the staff can rotate the rotating shaft 22. Under the rotation action of the rotating shaft 22, the first bevel gear 23 at the top is rotated. It can drive the second bevel gears 24 on both sides to engage and rotate at the same time, and under the rotation of the second bevel gears 24 on both sides, it can drive the bidirectional threaded rods 19 in the fixed mesh plates 18 on both sides to rotate at the same time. Under the rotation of the bidirectional threaded rods 19, it can drive the clamping plates 20 with threaded connections on both sides to move toward the middle at the same time. In the process of the clamping plates 20 on both sides moving toward the middle at the same time, it can drive the inclined surfaces of the positioning blocks 21 on both sides of the clamping plates 20 to contact the product. At this time, under the joint action of the inclined surfaces of the four positioning blocks 21, the product can be conveniently clamped and positioned in the middle part of the fixed mesh plate 18, ensuring the stability of subsequent experimental testing work, and the products on the two fixed mesh plates 18 complete the positioning and clamping work;

[0062] Then the staff can turn on the first servo motor 5 in the connecting frame 3 on both sides. Under the driving action of the first servo motor 5, the exhaust fan 6 can be driven to rotate stably, and then the air inside the device housing 1 can be sucked through the first air guide pipe 2 and transported to the ventilation duct 801 through the second air guide pipe 7. Then the air is transported back to the device housing 1 through the first fixed plate 802 and the through hole 803 on the worm gear 808, the first connecting hose 810 and the ventilation pipe 811, completing the air circulation. During the air circulation process, the staff can rotate the second one-way threaded rod 916 on the third turntable 914. Under the action of the thread rotation of the second one-way threaded rod 916, the adjustment plate 917 connected to the end portion can be pushed to move toward the inside of the transfer tank 915. With the help of the internal scale of the transfer tank 915 and the shielding action of the rubber plate 918, the internal storage space of the transfer tank 915 can be adjusted conveniently and accurately, and the internal storage space of the transfer tanks 915 on both sides can be adjusted to the same level.

[0063] Then the staff can control the second servo motor 903 on the top of the opening device housing 1. Under the driving action of the second servo motor 903, the first circular gear 904 on the output shaft can be driven to rotate, and the second circular gear 905 connected by meshing can drive the driven shaft 906 to rotate stably. Under the rotation action of the driven shaft 906, each connecting rod 907 can be driven to rotate. At this time, each connecting rod 907 can drive each first stirring rod 908 to revolve. During the revolution of each first stirring rod 908, the third circular gear 909 on the top can be driven to revolve inside the internal gear 910. By meshing the internal gear 910 with the third circular gear 909, the first stirring rod 908 in the revolution process can be driven to automatically rotate, thereby The dust stored inside 1 is uniformly stirred in all directions to prevent the dust from agglomerating during long-term storage, which affects the subsequent simulation experiment. At the same time, during the rotation of the driven shaft 906, the third turntable 914 can be driven to rotate continuously, and then the transfer trough 915 can be driven to align with the second discharge trough 919 first. At this time, the dust inside the storage frame 911 can be transported to the transfer trough 915 through the second discharge trough 919. Then, under the continued rotation of the third turntable 914, the transfer trough 915 can be driven to align with the first discharge trough 902 on the top of the support plate 901 and the ventilation duct 801. At this time, the dust in the transfer trough 915 can be transported to the ventilation duct 801 through the first discharge trough 902. Then, under the action of air flow, the dust can be driven to circulate synchronously;

[0064] And with the continuous rotation of the third turntable 914, the transfer trough 915 can be driven to intermittently align with the first discharge trough 902 and the second discharge trough 919 respectively, so that the dust in the storage frame 911 can be intermittently and quantitatively discharged through the second discharge trough 919, the transfer trough 915 and the first discharge trough 902, and the first guide tube 2, the connecting frame 3 and the second guide tube 7 can drive the dust air to circulate stably inside the device housing 1; if it is necessary to simulate a high-concentration dust environment, the internal storage space of the transfer trough 915 can be adjusted to the maximum first, and the dust concentration detector 30 and the first detection head 31 can be used to detect the dust concentration inside the device in real time until the concentration is close to the dust concentration required, and then the staff can rotate the third turntable in the opposite direction. The second one-way threaded rod 916 on the turntable 914 can drive the adjustment plate 917 connected to the end to move toward the side of the transfer tank 915, thereby adjusting and reducing the internal storage space of the transfer tank 915 so that the dust concentration inside the device reaches the required dust concentration; if it is necessary to simulate a low-concentration dust environment, the internal storage space of the transfer tank 915 can be adjusted to be reduced at the beginning. When the dust concentration inside the device reaches the required dust concentration, the second one-way threaded rod 916 on the third turntable 914 is rotated to pull the rubber plate 918 through the adjustment plate 917 to completely cover the transfer tank 915 and close it, thereby ending the dust discharge. The dust concentration inside the device housing 1 can be adjusted conveniently and accurately, thereby accurately simulating different dust environment conditions.

[0065] And during the rotation of the driven shaft 906, the screw rod 13 can be driven to rotate stably in the conveying cylinder 15. Under the rotation of the screw rod 13, the coolant in the insulation frame 11 can be conveyed to the temperature conducting tube 16 through the conveying cylinder 15. Then the coolant can be conveyed to the insulation frame 11 again through the temperature conducting tube 16 to complete the circulation transportation. The cooling plate 12 can be used to continuously cool the partition plate 10. The heat exchange principle can be used to adjust and reduce the temperature inside the device shell 1; when it is necessary to adjust and increase the temperature inside the device shell 1, the staff can control the number of electric heating tubes 17 inside the connecting frame 3 to open, so as to heat the circulating gas and thereby conveniently adjust and increase the temperature inside the device shell 1; and when the temperature needs to be further adjusted When rising, the first circular gear 904 can be driven to rotate in the opposite direction by controlling the second servo motor 903, and then the driven shaft 906 can be driven to rotate in the opposite direction by the second circular gear 905. At this time, the feeding direction of the screw rod 13 inside the conveying cylinder 15 is upward, but there is no feeding channel for upward feeding. At this time, the screw rod 13 only has a stirring function and cannot perform spiral feeding. Or, after the dust feeding work is completed, the second servo motor 903 is directly turned off. At this time, the coolant in the temperature conducting tube 16 stops flowing, and the cooling work is stopped. Subsequently, by increasing the number of electric heating tubes 17, the internal temperature of the device housing 1 can be further increased, and the internal temperature of the device housing 1 can be conveniently adjusted. The internal temperature of the device can be monitored in real time by the temperature and humidity detector 32 and the second detection head 33;

[0066] The second rotary disc 818 can be driven to rotate by the active shaft 817 on the second fixed plate 815, and the second rotary disc 818 can be driven to rotate by the active shaft 817. Under the rotation of the second rotary disc 818, the ventilation pipe 811 can be moved to the middle or side at the same time in the corresponding first limiting groove 816 in the second fixed plate 815 through each second limiting groove 819, so that the distribution range of the airflow mixed with dust can be conveniently adjusted. The staff can also push the ventilation pipe 811 at the bottom of the second connecting hose 812 to tilt by rotating the first one-way threaded rod 814 threadedly connected to one side of the connecting plate 813, so as to adjust the direction of the airflow. In summary, the direction of the airflow mixed with dust and the distribution range of the airflow can be conveniently adjusted. The worm 807, under the action of the rotation of the worm 807, can drive the meshing worm wheel 808 to rotate, and then drive the second guide groove 809 on the worm wheel 808 to perform circular motion. At this time, under the action of the circular motion of each second guide groove 809, the corresponding guide rod 805 can be moved horizontally inside the first guide groove 804. At this time, under the action of the movement of each guide rod 805, the corresponding baffle 806 can be driven to perform offset translation, and then the blocking range of the through hole 803 can be conveniently adjusted, so that the size of the ventilation opening inside the ventilation tube 801 can be conveniently adjusted, thereby accurately controlling the airflow delivery amount; by adjusting the delivery direction, distribution range and delivery amount of the airflow, various dust environment conditions can be accurately simulated to meet the research, testing or application requirements in different fields;

[0067] When the device is finished working, the staff can insert the collection net frame 27 into the through slot 25, and then under the action of air circulation, the dust mixed in the air can be filtered and collected by the collection net frame 27 until all the dust in the air is collected, and then the staff can pull out the collection net frame 27 again. After the collection net frame 27 is pulled out, the staff can lift the second magnetic plate 913 on the feed funnel 912, and then the recovered dust can be dumped into the storage frame 911 for convenient recycling, and then the staff can reversely rotate the rotating shaft 22, and drive the bidirectional threaded rod 19 to rotate in the opposite direction through the first bevel gear 23 and the second bevel gear 24 to complete the disassembly of the product, ensuring the convenience of its subsequent taking work.

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional dust environment simulation experimental device, characterized in that: The invention comprises a device housing (1), wherein the bottom of the device housing (1) is connected to a first air guide tube (2), the top of the first air guide tube (2) is connected to a connecting frame (3), the connecting frame (3) is fixed to the outer wall of the device housing (1), a protective frame (4) is fixed in the connecting frame (3), an electric heating tube (17) is installed in the connecting frame (3), a first servo motor (5) is installed in the protective frame (4), an exhaust fan (6) is fixed on the output shaft of the first servo motor (5), the top of the connecting frame (3) is connected to a second air guide tube (7), an air flow regulating assembly (8) is installed on the top of the device housing (1), the air flow regulating assembly (8) comprises a ventilator (801), the ventilator (80 1) is fixed on the top of the device housing (1), a first fixing plate (802) is fixed in the ventilation tube (801), a first guide groove (804) is provided at the bottom of the first fixing plate (802), a guide rod (805) is slidingly connected in a limited position in the first guide groove (804), a baffle (806) is fixedly connected to the guide rod (805), a worm (807) is rotatably connected to the top surface of the device housing (1), a worm wheel (808) is meshedly connected to the worm (807), and the worm wheel (808) is rotatably connected to the ventilation tube (801) through a sealed bearing, a through hole (803) is provided on both the first fixing plate (802) and the worm wheel (808), and the worm wheel (80 8) is provided with a second guide groove (809) at the top, the bottom of the guide rod (805) is limitedly slidably connected in the second guide groove (809), the bottom side end of the ventilation tube (801) is connected with a first connecting hose (810), the other end of the first connecting hose (810) is connected with a ventilation pipe (811), the middle of the ventilation pipe (811) is fixedly connected with a second connecting hose (812), the top of the ventilation pipe (811) is fixedly connected with a connecting plate (813), the connecting plate (813) is threadedly connected with a first one-way threaded rod (814), a second fixing plate (815) is fixed in the device housing (1), and the second fixing plate (815) is penetrated by a first limiting groove (81 6) A driving shaft (817) is rotatably connected to the second fixed plate (815), a second turntable (818) is fixed to the top of the driving shaft (817), a second limiting groove (819) is penetrated through the second turntable (818), the ventilation pipe (811) is slidably connected in the first limiting groove (816) and the second limiting groove (819), a material storage frame (911) is fixedly mounted on the top surface of the device housing (1), a second servo motor (903) is fixed on the top surface of the device housing (1), a first circular gear (904) is fixed to the output shaft of the second servo motor (903), and a second circular gear (905) is meshedly connected to the first circular gear (904),A driven shaft (906) is fixed to the top of the second circular gear (905), a second material discharge trough (919) is provided through the bottom of the material storage frame (911), a third rotary disc (914) is fixed to the driven shaft (906), and a transfer trough (915) is provided through the third rotary disc (914).

2. A multifunctional dust environment simulation experimental device according to claim 1, characterized in that: A partition plate (10) is fixed in the device housing (1), a thermal insulation frame (11) is fixed on the top surface of the device housing (1), a refrigeration plate (12) is installed on the side end of the thermal insulation frame (11), a spiral rod (13) is rotatably connected in the thermal insulation frame (11), a second stirring rod (14) is fixed on the spiral rod (13), the spiral rod (13) is arranged in a conveying cylinder (15), the conveying cylinder (15) is fixedly connected to the bottom of the thermal insulation frame (11), the bottom end of the conveying cylinder (15) is connected to a thermal conduction pipe (16), the thermal conduction pipe (16) is installed in the partition plate (10), the bottom of the device housing (1) is rotatably connected to a rotating shaft (22), the rotating shaft (22) is connected to the partition plate ( 10) are rotatably connected, a first bevel gear (23) is fixed to the top end of the rotating shaft (22), a second bevel gear (24) is meshedly connected to the first bevel gear (23), the partition plate (10) is fixedly connected to the middle part of the inner part of the device housing (1), the partition plate (10) and the heat conducting tube (16) are made of the same material, the middle part of the heat conducting tube (16) is in a continuous "S" shape, the thickness of the partition plate (10) is greater than the diameter of the heat conducting tube (16), the refrigeration fins (12) are symmetrically distributed on both sides of the heat insulating frame (11), the conveying cylinder (15) is arranged at the bottom center of the heat insulating frame (11), and the length of the conveying cylinder (15) is less than the length of the screw rod (13).

3. The multifunctional dust environment simulation experimental device according to claim 2, characterized in that: The device housing (1) is provided with a through slot (25), a rubber pad (26) is fixedly connected in the through slot (25), a collecting net frame (27) is slidably connected in the through slot (25), the collecting net frame (27) is a small-aperture net plate, a first magnetic plate (28) is fixedly connected to the end of the collecting net frame (27), the first magnetic plate (28) is magnetically adsorbed and connected to the device housing (1), a door panel (29) is installed on the device housing (1), a dust concentration detector (30) and a temperature and humidity detector (32) are installed on the outer wall of the device housing (1), and a first detection head (31) and a second detection head (33) are installed on the inner wall of the device housing (1). ), the dust concentration detector (30) is connected to the first detection head (31) through a cable, the temperature and humidity detector (32) is connected to the second detection head (33) through a cable, the rubber pads (26) are symmetrically distributed on the upper and lower sides of the through slot (25), and the rubber pads (26) on both sides are fitted with each other, the collecting net frame (27) is symmetrically distributed on both sides of the partition plate (10), the side end surface of the collecting net frame (27) is fitted with the inner wall of the device housing (1), and the collecting net frame (27) is fitted with the side end surface of the partition plate (10), and the length and width of the first magnetic plate (28) are respectively greater than the length and width of the through slot (25).

4. The multifunctional dust environment simulation experimental device according to claim 2, characterized in that: A fixed mesh plate (18) is fixed in the housing (1) of the device. The fixed mesh plate (18) is a large-aperture mesh plate. A bidirectional threaded rod (19) is rotatably connected in the fixed mesh plate (18). The second bevel gear (24) is fixed to the end of the bidirectional threaded rod (19). A clamping plate (20) is threadedly connected to the bidirectional threaded rod (19). The clamping plate (20) is limitedly slidably connected to the fixed mesh plate (18). A positioning block (21) is fixed on the clamping plate (20). The fixed mesh plates (18) are symmetrically distributed in the fixed mesh plates. On both sides of the partition plate (10), the fixed mesh plate (18) and the partition plate (10) are fixed to each other, the fixed mesh plate (18) corresponds to the second bevel gear (24) one by one through the bidirectional threaded rod (19), the bidirectional threaded rod (19) is connected to the middle part of the fixed mesh plate (18), the clamping plates (20) are symmetrically distributed on both sides of the bidirectional threaded rod (19), the positioning blocks (21) are symmetrically distributed on both sides of the clamping plates (20), and the cross section of the positioning blocks (21) is a right triangle.

5. The multifunctional dust environment simulation experimental device according to claim 1, characterized in that: The first flow guide tube (2) is symmetrically distributed on both sides of the bottom of the device housing (1). The first flow guide tube (2) corresponds to the second flow guide tube (7) through the connecting frame (3). The second flow guide tube (7) corresponds to the ventilation tube (801) one by one. The vertical center line of the ventilation tube (801), the vertical center line of the second fixing plate (815) and the vertical center of the end of the first flow guide tube (2) are located on the same vertical line. The first guide groove (804) is a regular hexagon. The guide rod (805) is provided with six Six guide rods (805) are distributed at equal angles in the first guide groove (804), the guide rods (805) correspond to the second guide groove (809) and the baffles (806) one by one, adjacent baffles (806) fit together, the top end surface of the baffle (806) fits with the bottom end surface of the first fixed plate (802), the bottom end surface of the baffle (806) fits with the top end surface of the worm wheel (808), and the diameter of the worm wheel (808) is larger than the diameter of the ventilator (801).

6. The multifunctional dust environment simulation experimental device according to claim 1, characterized in that: Four first limiting grooves (816) are provided, and the four first limiting grooves (816) are distributed at equal angles on the second fixing plate (815). The first limiting grooves (816) correspond one-to-one to the second limiting grooves (819). The first limiting grooves (816) correspond one-to-one to the first connecting hose (810) through the ventilation pipe (811). The second rotating disk (818) is located directly above the second fixing plate (815). The second fixing plate (815) fits the second rotating disk (818). The second limiting grooves (819) are inclined. The width of the second limiting grooves (819) is equal to the width of the first limiting grooves (816). The width of the first limiting grooves (816) is greater than the diameter of the ventilation pipe (811). The diameter of the connecting plate (813) is greater than the width of the first limiting grooves (816). The first one-way threaded rods (814) are symmetrically distributed on both sides of the connecting plate (813).

7. The multifunctional dust environment simulation experimental device according to claim 2, characterized in that: A dust supply assembly (9) is installed at the top of the device housing (1), and the dust supply assembly (9) includes a support plate (901) and a first feed chute (902). The first feed chute (902) is opened through the top of the ventilation tube (801) and the support plate (901). The support plate (901) is fixed on the top surface of the ventilation tube (801). The bottom end of the second circular gear (905) is fixed to the top of the spiral rod (13). The first feed chute (902) is symmetrically distributed on the left and right sides of the support plate (901). The second feed chute (919) is symmetrically distributed on the front and back sides of the bottom of the storage frame (911). The shape and size of a lower material trough (902) are the same as those of the second lower material trough (919), the length and width of the first lower material trough (902) are respectively greater than the length and width of the transfer trough (915), the transfer troughs (915) are symmetrically distributed on both sides of the third turntable (914), the top end surface of the third turntable (914) is in contact with the bottom end surface of the storage frame (911), the bottom end surface of the third turntable (914) is in contact with the top end surface of the support plate (901), the diameter of the support plate (901) and the diameter of the third turntable (914) are the same as the diameter of the storage frame (911), and the third turntable (914) is made of a transparent material.

8. The multifunctional dust environment simulation experimental device according to claim 7, characterized in that: A connecting rod (907) is fixed to the top of the driven shaft (906), and a first stirring rod (908) is rotatably connected to the connecting rod (907). A third circular gear (909) is fixed to the top of the first stirring rod (908), and an internal gear (910) is meshed and connected to the third circular gear (909). The internal gear (910) is fixed to the inner top surface of the storage frame (911). A feeding funnel (912) is connected to the top of the storage frame (911), and a second magnetic plate (913) is magnetically adsorbed and connected to the top surface of the feeding funnel (912). The driven shaft (906) rotates through a sealed bearing. The third turntable (914) is rotatably connected to the bottom of the storage frame (911); the inner thread of the third turntable (914) is connected to the second one-way threaded rod (916); the end of the second one-way threaded rod (916) is rotatably connected to the adjustment plate (917); the adjustment plate (917) is limitedly slidably connected to the transfer groove (915); the transfer groove (915) is provided with a scale; the top side end of the adjustment plate (917) is fixedly connected to a rubber plate (918); the other end of the rubber plate (918) is fixedly connected to the inner wall of the transfer groove (915); the side end surface of the rubber plate (918) is in contact with the inner wall of the transfer groove (915).

9. The multifunctional dust environment simulation experimental device according to claim 8, characterized in that: The connecting rods (907) are distributed at equal angles on the driven shaft (906), the connecting rods (907) are in contact with the inner wall of the storage frame (911), the first stirring rods (908) are symmetrically distributed on both sides of the connecting rod (907), the adjusting plate (917) corresponds to the transfer trough (915) one by one, the length and width of the adjusting plate (917) are respectively equal to the width and depth of the transfer trough (915), the adjusting plate (917) is in contact with the inner wall of the transfer trough (915), and the top surface of the adjusting plate (917), the top surface of the rubber plate (918) and the top surface of the transfer trough (915) are flush.

10. The multifunctional dust environment simulation experimental device according to claim 3, characterized in that: The electric heating tube (17) is spiral-shaped and is equidistantly distributed in the connection frame (3). The end of the first guide tube (2) is connected to the bottom center of the connection frame (3), and the bottom end of the second guide tube (7) is connected to the top center of the connection frame (3). The door panel (29) is made of a transparent material.

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