Intelligent control dust generating device for simulating self-adaptive operation in dust environment

Abstract

The invention discloses an intelligent control dust generating device for simulating self-adaptive operation in a dust environment, which comprises a box body, a material receiving system, a stirring mechanism, a material discharging system, a material spraying system and a control unit, and is characterized in that the box body is of a square structure, and the top of the box body is provided with a material discharging port. The material receiving system comprises a charging barrel, a powder receiving disc, an electronic weighing machine and a driving mechanism, the charging barrel is arranged on the mounting frame in the box body through the electronic weighing machine, and a charging hole is formed in the top of the charging barrel. The powder receiving disc is rotationally and hermetically arranged on the inner side of the lower end of the charging barrel, an annular guide groove is formed in the upper surface of the powder receiving disc, the driving mechanism drives the powder receiving disc to horizontally rotate, the bottom of the negative-pressure discharging box is in sliding fit with the powder receiving disc and is provided with a suction inlet, and the negative-pressure discharging box is communicated with a spraying system arranged on the outer wall of the box body through a reducing pipe. And the dust entering from the reducing pipe is sprayed to the external space. According to the invention, non-stop feeding can be realized, the long-time performance and completeness of an experiment are ensured, the powder discharge amount is accurately controlled, the experiment accuracy is improved, and the dust generation conditions under different working conditions are simulated.

Description

Technical Field

[0001] The invention belongs to the technical field of mining engineering, and in particular relates to an intelligent dust-generating control device for adaptive operation in simulated dust environment. Background Art

[0002] As the mechanization level of mine operations in my country continues to increase, the production of respirable dust in mines has also increased, seriously affecting the health of underground workers. In mine dust control work, three dimensions can be taken into consideration, namely source control, process control, and individual protection. For the study of the latter two dimensions, it is necessary to simulate the dust generated in the actual production environment under experimental conditions. This requires a dust generator to provide researchers with a controllable dust generation environment so that they can study and evaluate dust characteristics, and conduct related tests and optimizations.

[0003] The dust generation capacity of traditional dust generating devices is very limited. The dust tank space size of a high-precision belt dust generator in a Chinese patent with publication number CN115970599B is small. The dust generating device in a Chinese patent with publication number CN115107311A also has the same problem and cannot meet the diverse experimental requirements. When the dust raw material is insufficient, the experiment needs to be suspended to replenish the dust raw material before continuing the experiment, which will cause experimental errors and affect the experimental process. In addition, the dust generating device in a Chinese patent with publication number CN220120504U uses a fan to provide airflow. The dust mixed with the airflow is easily affected by the environment. Experiments in a relatively humid and hot environment may cause the dust conditions of the experiment to be inconsistent with those of the production site, which will cause large errors in the experimental results. Most dust generating devices do not have a weighing function. The weighing function can be linked with an intelligent control system to achieve more functions. To this end, we propose a dust generating device that is suitable for multiple environments, can operate for a long time, and has a weighing function. Therefore, the existing technology urgently needs to be further improved. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to propose an intelligent dust-generating device for adaptive operation in a simulated dust environment, so as to solve the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An intelligent controlled dust generating device for adaptive operation in simulated dust environment comprises a box body, a material receiving system, a stirring mechanism, a material discharging system, a material spraying system and a control unit. The box body is a square structure, and a front door body and a rear door body are respectively arranged on the front and rear side walls of the box body, and a top cover is arranged on the top rear side, and a material discharge port is opened on the top cover.

[0007] The material receiving system is arranged inside the box, and includes a barrel, a powder receiving plate, an electronic weighing device and a driving mechanism. The electronic weighing device is arranged at the lower part of the box through a mounting frame. The barrel is a cylindrical shape with an open bottom. The barrel is vertically arranged above the electronic weighing device, and a feeding port is opened at the top.

[0008] The powder receiving pan is arranged at the bottom of the barrel and cooperates with the lower end of the barrel in a rotating seal. An annular material guide groove is opened on the upper surface of the powder receiving pan. The driving mechanism is located below the powder receiving pan, and its output end is connected to the bottom of the powder receiving pan and drives the powder receiving pan to rotate around the axis of the barrel.

[0009] The discharging system includes a negative pressure discharging box and a tapered tube. The negative pressure discharging box is fixedly mounted on the inner wall of the barrel, and its bottom is slidably matched with the powder receiving plate. A suction port facing the material guide groove is provided at the bottom of the negative pressure discharging box. A material blocking block matching the cross-section of the material guide groove is provided at the bottom of the negative pressure discharging box, and the material blocking block is located on one side of the suction port. The tapered tube is located outside the barrel, one end of which is connected to the middle part of the negative pressure discharging box, and the other end extends to the outside of the box.

[0010] The stirring mechanism is arranged inside the barrel and adjacent to the negative pressure discharge box. The spraying system is arranged on the outer wall of the box body. The other end of the tapered tube is connected to the inlet end of the spraying system to spray the dust entering the tapered tube into the external space.

[0011] The control unit includes a PLC controller, a touch panel and an emergency stop switch. The touch panel is fixedly embedded in the top rear side of the box, the PLC controller is installed inside the box, the emergency stop switch is arranged on one side of the touch panel, and the touch panel and the emergency stop switch are respectively connected to the PLC controller for communication.

[0012] Furthermore, the box body includes a bottom plate, a top plate, a left side plate, a right side plate and a frame. The bottom plate, the top plate and the two side plates are welded to form the outer shell of the box body. The frame is a steel frame structure matching the outer shell and is fixedly welded to the inner wall of the outer shell.

[0013] The front door body and the rear door body are respectively installed on the front and rear sides of the box body, and the top cover is installed on the top plate. The front door body, the rear door body and the top cover are all provided with a handle.

[0014] Furthermore, the barrel includes a barrel body and an upper end cover, the barrel body is a straight circular tube of equal cross-section, an upper flange is provided on the outer side of the upper end of the barrel body, the edge of the upper end cover is fixedly and sealedly connected to the upper flange, and the feeding port is located on the center side of the upper end cover and communicates with the interior of the barrel body.

[0015] A lower flange is provided on the outer side of the lower part of the cylinder. The electronic weighing device is a circular ring structure and is fixed on the mounting frame. The lower flange is fixedly connected with the electronic weighing device by bolts. The signal output end of the electronic weighing device is communicatively connected with the PLC controller.

[0016] The inner side of the lower end of the cylinder is provided with an annular flange integrally formed therewith, and the powder receiving pan is located above the annular flange. The powder receiving pan is rotatably sealed with the inner wall of the cylinder and the upper surface of the annular flange.

[0017] Furthermore, the powder receiving plate is a circular metal plate matching the inner diameter of the cylinder, and a first annular groove is formed on the circumferential side wall of the powder receiving plate, a first O-ring is embedded in the first annular groove, and the first O-ring is in sliding contact with the inner wall of the cylinder.

[0018] A second annular groove is formed on the upper surface of the annular flange, the center of the second annular groove is located on the axis of the cylinder, a second O-type sealing ring is embedded in the second annular groove, and the second O-type sealing ring is in sliding contact with the bottom of the powder receiving plate.

[0019] Furthermore, the driving mechanism includes a spline shaft, a spline sleeve and a first servo motor. The spline sleeve is vertically arranged below the powder receiving plate and is set on the mounting frame through a bearing seat.

[0020] The first servo motor is fixed at the bottom of the mounting frame, and its output shaft is coaxially fixedly connected to the lower end of the spline sleeve. The spline shaft is movably inserted into the spline sleeve, and its upper end passes through the top of the spline sleeve and is fixedly connected to the bottom of the powder receiving plate as a whole. In the working state, the first servo motor drives the powder receiving plate to rotate horizontally through the spline sleeve.

[0021] Furthermore, the center point of the material guide groove is located at the center of the powder receiving plate, and the cross section along the circumferential direction thereof is a uniform cross section.

[0022] The upper surface of the powder receiving plate is also provided with two annular guide slide grooves, which are respectively located at the inner and outer sides of the material guide groove and are arranged concentrically with the material guide groove.

[0023] Two arc-shaped sliding blocks corresponding to the positions of the guide slide grooves are fixed to the bottom of the negative pressure discharge box. Each arc-shaped sliding block is located in the corresponding guide slide groove and slidably cooperates with the powder receiving plate.

[0024] Furthermore, the stirring mechanism includes a stirring shaft, blades and a second servo motor. The stirring shaft is arranged vertically in an eccentric manner, and its upper end is rotatably matched with the upper end cover through a bearing. The second servo motor is fixedly installed above the top of the barrel, and its output shaft is connected to the upper end of the stirring shaft.

[0025] The blade is a vertically arranged rectangular metal plate, the middle of the blade is fixedly connected to the lower end of the stirring shaft, and the long side of the bottom of the blade is close to the upper surface of the powder receiving plate.

[0026] Furthermore, the negative pressure discharge box is a shell composed of an annular side wall, an upper cover body and a lower cover body. The annular side wall is a cylinder with an irregular cross-section and is vertically arranged on one side of the axis of the cylinder body. The upper cover body and the lower cover body close the upper and lower ends of the annular side wall.

[0027] The suction port is a circular hole opened on the lower cover body, and two arc-shaped sliding blocks are fixedly welded to the bottom of the lower cover body.

[0028] One side outer wall of the annular side wall is attached to and fixed to the inner side wall of the cylinder, and the side outer wall close to the blade is an arc surface adapted to the movement trajectory of the blade end, and the blade is arranged adjacent to the arc outer wall of the negative pressure discharge box.

[0029] Furthermore, the spraying system includes a vacuum generator and a Venturi nozzle, wherein the Venturi nozzle is fixed to an outer wall of one side of the box body through a pipe clamp, and an outlet end of the Venturi nozzle faces rearward.

[0030] The vacuum generator is arranged at the front side of the Venturi nozzle, and its outlet end is connected and communicated with the inlet end of the Venturi nozzle. The inlet end of the vacuum generator is connected and communicated with the middle part of the negative pressure discharge box through the tapered tube.

[0031] By adopting the above technical solution, the beneficial technical effects of the present invention are:

[0032] (1) The present invention adopts a design method of non-stop feeding, which ensures the duration and integrity of the experiment to the greatest extent.

[0033] (2) The use of electronic weighing device can transmit information with the touch panel in both forward and reverse directions. In the forward transmission state, the dust mass is recorded in real time and in time periods, which greatly reduces the error caused by manual weighing, reduces the workload of the experimenters, and ensures the accuracy of the experiment. In the reverse transmission state, different working conditions can be simulated through the touch panel, which has a wider range of applications.

[0034] (3) The present invention controls the dust supply amount by the rotation speed of the powder receiving plate. The electronic weighing device records the dust amount in the barrel in real time and sends it to the PLC controller. The PLC controller adjusts the rotation speed of the powder receiving plate in real time through the data to achieve precise control of the dust generation amount per unit time, and simulates the quantitative dust generation of adaptive operations under multiple environmental conditions according to the actual situation of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is a schematic diagram of a front side view of an intelligently controlled dust generating device for adaptive operation in a simulated dust environment.

[0036] Figure 2 This is a schematic diagram of the rear side view of an intelligent control dust generating device for adaptive operation in simulated dust environment according to the present invention.

[0037] Figure 3 It is a front side structural schematic diagram of the present invention after removing the box body.

[0038] Figure 4 It is a schematic diagram of the rear side structure of the present invention after the box body is removed.

[0039] Figure 5 yes Figure 3 A top view of the combined structure shown in FIG.

[0040] Figure 6 yes Figure 5 It is a cross-sectional view of AA of the combined structure.

[0041] Figure 7 yes Figure 3 A schematic diagram of a part of the device shows a combination of a stirring mechanism, a powder receiving tray and a negative pressure discharge box.

[0042] Figure 8 yes Figure 6 A partial enlarged view of part B.

[0043] Fig. 9 It is a schematic diagram of the bottom view structure of the negative pressure discharge box of the present invention.

[0044] Fig.10 yes Figure 3 A schematic diagram of another part thereof shows a combination of a reducer and a spray system. DETAILED DESCRIPTION

[0045] In order to make the advantages and technical solutions of the present invention more clear and explicit, the present invention is described in detail below in conjunction with specific embodiments.

[0046] Combination Figures 1 to 10 An intelligent controlled dust generating device for adaptive operation in simulated dust environment comprises a box body 1, a material receiving system, a stirring mechanism, a material discharging system, a material spraying system and a control unit. The box body 1 is a square structure. The box body 1 comprises a bottom plate, a top plate 11, a left side plate 12, a right side plate 13 and a frame. The bottom plate, the top plate 11 and the two side plates are welded to form the outer shell of the box body 1. The frame is a steel frame structure matching the outer shell and is fixedly welded to the inner wall of the outer shell.

[0047] A front door body 14 and a rear door body 15 are respectively provided on the front and rear side walls of the box body 1, and the front door body 14 and the rear door body 15 are respectively installed on the front and rear sides of the box body 1, the right side of the front door body 14 is hinged to the front right side of the frame, and the left side of the front door body 14 is locked together with the front left side of the frame, the right side of the rear door body 15 is hinged to the rear right side of the frame, and the left side of the front door body 14 is locked together with the rear left side of the frame.

[0048] In addition, a top cover 16 is installed at the rear of the top plate 11 of the box body 1, the front side of the top cover 16 is hinged to the middle of the top plate 11, and the rear side of the top cover 16 is locked together with the top plate 11. A handle is installed on the front door body 14, the rear door body 15 and the top cover 16 respectively, and the front and rear sides of the box body 1 can be opened by the handles respectively configured on the front door body 14 and the rear door body 15, so as to facilitate the inspection and maintenance of the material receiving system, the stirring mechanism and the material discharging system of the box body 1. In addition, the top cover 16 is provided with a rectangular discharge port 18, and dust can be added to the inside of the material receiving system through the discharge port 18.

[0049] The control unit includes a PLC controller, a touch panel 21 and an emergency stop switch 22. The touch panel 21 is fixedly embedded in the top rear side of the box 1, the PLC controller is installed inside the box 1, and the emergency stop switch 22 is arranged on one side of the touch panel 21. The touch panel 21 and the emergency stop switch 22 are respectively connected to the PLC controller for communication.

[0050] The material receiving system is arranged inside the box 1, which includes a barrel 31, a powder receiving plate 32, an electronic scale 33 and a driving mechanism. The electronic scale 33 is arranged at the lower part of the box 1 through the mounting frame 17. The barrel 31 is a cylindrical shape with an open bottom. The barrel 31 is vertically arranged above the electronic scale 33, and a feeding port 34 is opened on the top.

[0051] The barrel 31 includes a barrel body 311 and an upper end cover 312. The barrel body 311 is a straight circular tube with a uniform cross-section. An upper flange 313 is provided on the outer side of the upper end of the barrel body 311. The edge of the upper end cover 312 is fixedly and sealedly connected to the upper flange 313. The feeding port 34 is located on one side of the center of the upper end cover 312 and communicates with the interior of the barrel body 311.

[0052] A lower flange 314 is provided on the outer side of the lower part of the barrel 311. The electronic scale 33 is a circular ring structure and is fixed on the mounting frame 17. The lower flange 314 is bolted and connected to the electronic scale 33. The signal output end of the electronic scale 33 is communicatively connected to the PLC controller. The electronic scale 33 transmits data to the PLC controller in real time to achieve precise control of the amount of dust inside the barrel 31. When the amount of dust in the barrel 31 is less than the set value, the powder supply mechanism supplies dust into the barrel 31 through the feeding port 34 to ensure continuous operation of the intelligent control dust generating device. The powder supply mechanism adopts the existing technology.

[0053] The powder receiving pan 32 is arranged at the bottom of the barrel 31 and is in rotational sealing cooperation with the lower end of the barrel 31. The inner side of the lower end of the barrel 311 has an annular flange 315 integrally formed therewith. Specifically, the powder receiving pan 32 is a circular metal plate matching the inner diameter of the barrel 311. The powder receiving pan 32 is located above the annular flange 315. The powder receiving pan 32 is in rotational sealing cooperation with the inner wall of the barrel 311 and the upper surface of the annular flange 315.

[0054] The first annular groove is formed on the circumferential side wall of the powder receiving pan 32, and a first O-ring 35 is embedded in the first annular groove, and the first O-ring 35 is in sliding contact with the inner side wall of the cylinder 311. A second annular groove is formed on the upper surface of the annular flange 315, and the center of the second annular groove is located on the axis of the cylinder 311. A second O-ring 36 is embedded in the second annular groove, and the second O-ring 36 is in sliding contact with the bottom of the powder receiving pan 32. During operation, the powder receiving pan 32 rotates horizontally relative to the barrel 31, and the barrel 31 contains dust. The powder receiving pan 32 rotates and seals with the barrel 31 through the first O-ring 35 and the second O-ring 36, so as to prevent the dust inside the barrel 31 from leaking.

[0055] The driving mechanism includes a spline shaft 37, a spline sleeve 38 and a first servo motor 39. The spline sleeve 38 is vertically arranged below the powder receiving plate 32 and is set on the mounting frame 17 through a bearing seat 381. The mounting frame 17 is fixedly connected to the frame bolts inside the box body 1. The spline transmission method is adopted to ensure the transmission rotation while enabling the electronic weighing device 33 to accurately weigh the dust inside the barrel 31, so as to accurately control the dust amount inside the barrel 31 to ensure the dust generation amount per unit time.

[0056] The first servo motor 39 is fixed at the bottom of the mounting frame 17, and its output shaft is coaxially fixedly connected to the lower end of the spline sleeve 38. The signal end of the first servo motor 39 is connected to the PLC controller for communication. The PLC controller controls the direction and speed of the output shaft of the first servo motor 39 through instructions. The spline shaft 37 is movably arranged inside the spline sleeve 38, and its upper end passes through the top of the spline sleeve 38 and is fixedly connected to the bottom of the powder receiving plate 32 as a whole. In the working state, the first servo motor 39 drives the powder receiving plate 32 to rotate horizontally through the spline sleeve 38. The electronic weighing device 33 weighs the weight of the dust inside the barrel 31 in real time, and sends the weighing data to the PLC controller in real time. The speed of the powder receiving plate 32 is controlled by data interaction, so as to realize the precise control of the powder spraying amount, and instantly change the spraying amount per unit time, and accurately simulate the environmental conditions of dust in the mine tunnel.

[0057] An annular guide groove 321 is provided on the upper surface of the powder receiving pan 32. The driving mechanism is located below the powder receiving pan 32. Its output end is connected to the bottom of the powder receiving pan 32 and drives the powder receiving pan 32 to rotate around the axis of the barrel 31. The guide groove 321 is used to collect dust inside the barrel 31 and send the dust in the guide groove 321 into the negative pressure discharge box 41 to achieve stable dust feeding.

[0058] The center point of the guide groove 321 is located at the center of the powder receiving plate 32, and the cross section along the circumferential direction is a uniform cross section. The upper surface of the powder receiving plate 32 is also provided with two annular guide grooves 322, which are respectively located at the inner and outer sides of the guide groove 321 and are arranged concentrically with the guide groove 321.

[0059] The discharging system includes a negative pressure discharging box 41 and a tapering tube 42. The negative pressure discharging box 41 is fixedly mounted on the inner wall of the barrel 31, and its bottom is slidably matched with the powder receiving tray 32. Specifically, two arc-shaped sliding blocks 43 corresponding to the positions of the guide grooves 322 are fixed to the bottom of the negative pressure discharging box 41. Each arc-shaped sliding block 43 is respectively located in the corresponding guide groove 322 and slidably matched with the powder receiving tray 32.

[0060] The bottom of the negative pressure discharge box 41 is provided with a suction port 44 that is directly opposite to the material guide trough 321, and a blocking block 45 that matches the cross-section of the material guide trough 321 is fixed to the bottom of the negative pressure discharge box 41. The blocking block 45 is located on the inner side of the material guide trough 321, and its two sides and bottom are in contact with the inner wall of the material guide trough 321. In addition, the blocking block 45 is located on the side of the suction port along the counterclockwise rotation direction of the powder receiving plate 32, and the side wall of the blocking block 45 close to the suction port 44 is an arc surface concentric with the suction port 44. When the powder receiving plate 32 rotates horizontally to the bottom of the negative pressure discharge box 41, the blocking block 45 blocks and scrapes away the dust filled in the material guide trough 321, so that the material guide trough 321 allows the blocked dust to continuously enter the interior of the negative pressure discharge box 41 through the suction port 44, and the amount of dust entering the negative pressure discharge box 41 per unit time is controlled by controlling the rotation speed of the powder receiving plate 32.

[0061] The tapered tube 42 is located outside the barrel 31, the thick end of the tapered tube 42 is connected to the middle of the negative pressure discharge box 41, and the narrow end of the tapered tube 42 extends to the outside of the box body 1 and is connected to the inlet end of the spraying system. The spraying system continuously inhales the negative pressure discharge box 41 through the tapered tube 42, so that the negative pressure discharge box 41 is in a negative pressure state, and the dust in the guide groove 321 below the negative pressure discharge box 41 continuously enters the negative pressure discharge box 41 through the suction port 44. The dust is atomized and diffused inside the negative pressure discharge box 41, and is accelerated into the spraying system through the tapered tube 42, and then sprayed into the external space through the spraying system.

[0062] The stirring mechanism is arranged inside the barrel 31 and adjacent to the negative pressure discharge box 41. Specifically, the stirring mechanism includes a stirring shaft 51, blades 52 and a second servo motor 53. The stirring shaft 51 is arranged vertically in an eccentric manner, and its upper end is rotatably matched with the upper end cover 312 through a bearing. The second servo motor 53 is fixedly installed above the top of the barrel 31, and its output shaft is connected to the upper end of the stirring shaft 51.

[0063] The blade 52 is a vertically arranged rectangular metal plate. The middle of the blade 52 is fixedly connected to the lower end of the stirring shaft 51 , and the long side of the bottom of the blade 52 is close to the upper surface of the powder receiving plate 32 .

[0064] Specifically, the negative pressure discharge box 41 is a shell composed of an annular side wall, an upper cover and a lower cover. The annular side wall is a cylindrical shape with a special-shaped cross section and is vertically arranged on one side of the axis of the cylinder 311. The upper cover and the lower cover seal the upper and lower ends of the annular side wall. The suction port 44 is a circular hole opened on the lower cover, and two arc-shaped sliders 43 are fixedly welded to the bottom of the lower cover.

[0065] The outer wall of one side of the annular side wall is attached to and fixed to the inner wall of the cylinder 311 as a whole, and the outer wall of one side close to the blade 52 is a circular arc surface adapted to the motion trajectory of the end of the blade 52, and the blade 52 is arranged adjacent to the circular arc outer wall of the negative pressure discharge box 41. The second servo motor 53 drives the blade 52 to rotate through the stirring shaft 51, and the rotation area of ​​the blade 52 is located on the side of the negative pressure discharge box 41 opposite to the rotation direction of the powder receiving plate 32. The rotation area of ​​the blade 52 covers the width of the guide trough 321. The stirring of the lower dust by the blade 52 ensures that the guide trough 321 is filled with dust before entering the bottom of the negative pressure discharge box 41. The dust is stably and evenly fed through the rotation speed of the powder receiving plate 32.

[0066] The spraying system is arranged on the outer wall of the box body 1, and the other end of the reducer 42 is connected to the inlet end of the spraying system, so that the dust entering the reducer 42 is sprayed to the external space. Specifically, the spraying system includes a vacuum generator 61 and a venturi nozzle 62, and the venturi nozzle 62 is fixed on the outer wall of one side of the box body 1 through a pipe clamp 63, and the outlet end of the venturi nozzle 62 faces backward.

[0067] The vacuum generator 61 is arranged at the front side of the Venturi nozzle 62 , and its outlet end is connected to the inlet end of the Venturi nozzle 62 . The inlet end of the vacuum generator 61 is connected to the middle part of the negative pressure discharge box 41 through the tapered tube 42 .

[0068] Parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

[0069] Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0070] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0071] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An intelligent dust-generating device for adaptive operation in simulated dust environment, characterized in that: It includes a box body, a material receiving system, a stirring mechanism, a material discharging system, a material spraying system and a control unit. The box body is a square structure. The front and rear side walls of the box body are respectively provided with a front door body and a rear door body. The top rear side is provided with a top cover, and the top cover is provided with a material discharge port. The material receiving system is arranged inside the box, and includes a material barrel, a powder receiving plate, an electronic weighing device and a driving mechanism. The electronic weighing device is arranged at the lower part of the box through a mounting frame. The material barrel is a cylindrical shape with an open bottom. The material barrel is vertically arranged above the electronic weighing device, and a feeding port is opened at the top of the material barrel. The powder receiving plate is arranged at the bottom of the barrel and is in rotational sealing cooperation with the lower end of the barrel. An annular material guide groove is provided on the upper surface of the powder receiving plate. The driving mechanism is located below the powder receiving plate, and its output end is connected to the bottom of the powder receiving plate, and drives the powder receiving plate to rotate around the axis of the barrel. The discharging system comprises a negative pressure discharging box and a tapered tube. The negative pressure discharging box is fixedly mounted on the inner side wall of the barrel, and its bottom is slidably matched with the powder receiving plate. A suction port facing the material guide groove is provided at the bottom of the negative pressure discharging box. A material blocking block matching the cross section of the material guide groove is provided at the bottom of the negative pressure discharging box. The material blocking block is located on one side of the suction port. The tapered tube is located outside the barrel, and one end of the tapered tube is connected and communicated with the middle part of the negative pressure discharging box, and the other end extends to the outside of the box body. The stirring mechanism is arranged inside the barrel and adjacent to the negative pressure discharge box. The spraying system is arranged on the outer wall of the box body. The other end of the tapered tube is connected to the inlet end of the spraying system to spray the dust entering the tapered tube into the external space. The control unit includes a PLC controller, a touch panel and an emergency stop switch. The touch panel is fixedly embedded in the top rear side of the box, the PLC controller is installed inside the box, the emergency stop switch is arranged on one side of the touch panel, and the touch panel and the emergency stop switch are respectively connected to the PLC controller for communication.

2. According to claim 1, an intelligent control dust generating device for adaptive operation in simulated dust environment is characterized in that: The box body includes a bottom plate, a top plate, a left side plate, a right side plate and a frame. The bottom plate, the top plate and the two side plates are welded to form the outer shell of the box body. The frame is a steel frame structure matching the outer shell and is fixedly welded to the inner wall of the outer shell. The front door body and the rear door body are respectively installed on the front and rear sides of the box body, and the top cover is installed on the top plate. A handle is provided on the front door body, the rear door body and the top cover.

3. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 1, characterized in that: The barrel comprises a barrel and an upper end cover. The barrel is a straight circular tube with a constant cross section. An upper flange is arranged on the outer side of the upper end of the barrel. The edge of the upper end cover is fixedly and sealedly connected to the upper flange. The feed port is located on one side of the center of the upper end cover and communicates with the interior of the barrel. A lower flange is provided on the outer side of the lower part of the cylinder, the electronic weighing device is a circular ring structure and is fixed on the mounting frame, the lower flange is fixedly connected with the electronic weighing device by bolts, and the signal output end of the electronic weighing device is connected to the PLC controller for communication; The inner side of the lower end of the cylinder is provided with an annular flange integrally formed therewith, and the powder receiving pan is located above the annular flange. The powder receiving pan is rotatably sealed with the inner wall of the cylinder and the upper surface of the annular flange.

4. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 3, characterized in that: The powder receiving plate is a circular metal plate matching the inner diameter of the cylinder, and a first annular groove is formed on the circumferential side wall of the powder receiving plate. A first O-type sealing ring is embedded in the first annular groove, and the first O-type sealing ring is in sliding contact with the inner side wall of the cylinder; A second annular groove is formed on the upper surface of the annular flange, the center of the second annular groove is located on the axis of the cylinder, a second O-type sealing ring is embedded in the second annular groove, and the second O-type sealing ring is in sliding contact with the bottom of the powder receiving plate.

5. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 1, characterized in that: The driving mechanism comprises a spline shaft, a spline sleeve and a first servo motor, wherein the spline sleeve is vertically arranged below the powder receiving plate and is arranged on the mounting frame through a bearing seat; The first servo motor is fixed at the bottom of the mounting frame, and its output shaft is coaxially fixedly connected to the lower end of the spline sleeve. The spline shaft is movably inserted into the spline sleeve, and its upper end passes through the top of the spline sleeve and is fixedly connected to the bottom of the powder receiving plate as a whole. In the working state, the first servo motor drives the powder receiving plate to rotate horizontally through the spline sleeve.

6. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 3, characterized in that: The center point of the material guide groove is located at the center of the powder receiving plate, and the cross section along the circumference direction thereof is a uniform cross section; The upper surface of the powder receiving plate is also provided with two annular guide grooves, which are respectively located at the inner and outer sides of the material guide groove and are arranged concentrically with the material guide groove; Two arc-shaped sliding blocks corresponding to the positions of the guide slide grooves are fixed to the bottom of the negative pressure discharge box. Each arc-shaped sliding block is located in the corresponding guide slide groove and slidably cooperates with the powder receiving plate.

7. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 6, characterized in that: The stirring mechanism includes a stirring shaft, blades and a second servo motor. The stirring shaft is arranged vertically in an eccentric manner, and its upper end is rotatably matched with the upper end cover through a bearing. The second servo motor is fixedly installed above the top of the barrel, and its output shaft is connected to the upper end of the stirring shaft. The blade is a vertically arranged rectangular metal plate, the middle of the blade is fixedly connected to the lower end of the stirring shaft, and the long side of the bottom of the blade is close to the upper surface of the powder receiving plate.

8. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 7, characterized in that: The negative pressure discharge box is a shell composed of an annular side wall, an upper cover body and a lower cover body. The annular side wall is a cylindrical shape with a special-shaped cross-section and is vertically arranged on one side of the axis of the cylinder body. The upper cover body and the lower cover body seal the upper and lower ends of the annular side wall. The suction port is a circular hole opened on the lower cover body, and two arc-shaped sliders are fixedly welded to the bottom of the lower cover body; One side outer wall of the annular side wall is attached to and fixed to the inner side wall of the cylinder, and the side outer wall close to the blade is an arc surface adapted to the movement trajectory of the blade end, and the blade is arranged adjacent to the arc outer wall of the negative pressure discharge box.

9. The intelligent dust-generating device for adaptive operation in simulated dust environment according to claim 1, characterized in that: The spraying system includes a vacuum generator and a Venturi nozzle, wherein the Venturi nozzle is fixed to an outer wall of one side of the box body through a pipe clamp, and the outlet end of the Venturi nozzle faces rearward; The vacuum generator is arranged at the front side of the Venturi nozzle, and its outlet end is connected and communicated with the inlet end of the Venturi nozzle. The inlet end of the vacuum generator is connected and communicated with the middle part of the negative pressure discharge box through the tapered tube.

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