Belt conveyor bottom plate cleaning system and cleaning method thereof

Abstract

The invention discloses a belt conveyor bottom plate cleaning system and a cleaning method thereof.The system comprises a supporting device and a cleaning device arranged on the surface of the supporting device, and the supporting device has the function of providing a supporting and cleaning area for the cleaning device; the sweeping device has the functions of sweeping fallen materials on the surface of the bottom plate and pushing the fallen materials to a material collecting area, and the control system has the function of controlling the sweeping device to move back and forth on the surface of the bottom plate. The cleaning device is reasonable in structural design, good in cleaning effect and high in cleaning efficiency, the cleaning device can remove fallen materials attached to the surface of the bottom plate, the robot body drives the cleaning brush to act on the surface of the bottom plate so that the cleaning brush can clean and scrape the fallen materials accumulated on the surface of the bottom plate, automatic cleaning operation is achieved, manpower is saved, and the working efficiency is improved. The labor intensity of workers is relieved, climbing operation is avoided, and the danger of operation of the workers is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyor cleaning equipment, and particularly relates to a belt conveyor bottom plate cleaning system and a cleaning method thereof. Background Art

[0002] As an important conveying device in national production and life, belt conveyors are widely used in multiple industries, such as grain conveying, cut tobacco conveying, etc. Since the conveyed materials sometimes adhere to the belt, as the belt moves, these adhered materials will fall off under the rotation of the belt. Therefore, technicians usually design a bottom plate under the belt conveyor to receive these fallen materials to avoid polluting the production workshop. However, over time, these materials will continuously accumulate on the surface of the bottom plate. If not cleaned in time, the bottom plate will be covered by the materials, and even piled up too high to affect the normal operation of the belt. For this reason, manual methods are usually used to clean the materials accumulated on the surface of the bottom plate. However, for belt conveyors installed at high places, relying solely on manual cleaning not only takes time but also poses risks.

[0003] Therefore, the prior art discloses devices for cleaning the above-mentioned bottom plate:

[0004] The authorized announcement number CN207658611U discloses an automatic cleaning device for the accumulated ash on the belt conveyor pallet. It adopts the form of opening a notch at the bottom of the bottom plate to install a movable door to remove the materials and dust falling on the surface of the pallet. However, the above-mentioned prior art cannot remove the fallen materials adhering to the surface of the bottom plate, and the long-term accumulation of the fallen materials also increases the cleaning difficulty, and still requires manual cleaning regularly. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a belt conveyor bottom plate cleaning system, which can solve the technical problems that the prior art cannot remove the fallen materials adhering to the surface of the bottom plate, and the long-term accumulation of the fallen materials also increases the cleaning difficulty, and still requires manual cleaning regularly. At the same time, the present invention also provides a belt conveyor bottom plate cleaning method, which is applied to a belt conveyor bottom plate cleaning system.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A belt conveyor bottom plate cleaning system, which includes a support device and a cleaning device placed on its surface,

[0008] The support device has the function of providing support for the cleaning device and a cleaning area. The support device includes a bracket and a bottom plate inclinedly arranged at its top end. Lower stop columns and upper stop columns are respectively arranged at the head and tail ends of the bottom plate. The tail of the bottom plate is connected with an aggregate funnel through a dust fall opening opened on its surface. Color tapes are arranged on the surface of the bottom plate;

[0009] The cleaning device has the function of cleaning the materials falling on the surface of the bottom plate and pushing them to the material collection area. The cleaning device includes a robot main body and cleaning brushes symmetrically arranged at its front and rear ends. The robot main body includes a top plate and a traveling mechanism arranged at its bottom. The traveling mechanism includes a motor bracket, a driving motor located at the bottom end of the motor bracket, and a driving wheel connected to the output end of the driving motor. The bottom of the top plate is suspended with a placing plate through copper columns. A control system electrically connected to the traveling mechanism is arranged on the surface of the placing plate;

[0010] The control system has the function of controlling the reciprocating movement of the cleaning device on the surface of the bottom plate. The control system includes a single-chip microcomputer controller placed on the surface of the placing plate, a gray-scale sensor, a motor drive board, and a start button respectively electrically connected to it. The gray-scale sensors are respectively located at the front, rear, left, and right sides below the top plate. The motor drive board is electrically connected to the driving motor. The start button is arranged on the surface of the top plate. The single-chip microcomputer controller is also electrically connected to a power supply.

[0011] Further, the cross-section of the bottom plate is a U-shaped structure. The lower stop column is vertically arranged on the upper surface of the head end of the bottom plate. The upper stop column is vertically arranged on the upper surface of the tail end of the bottom plate. The lower stop column and the upper stop column can limit the running range of the cleaning device on the surface of the bottom plate.

[0012] Further, the opening shape of the dust fall opening is rectangular. It is located in front of the upper stop column. The opening width of the dust fall opening is the same as the width of the bottom surface of the bottom plate. The aggregate funnel is located below the bottom plate. The aggregate funnel is provided with a feed inlet. The feed inlet of the aggregate funnel is fixedly connected to the dust fall opening to form a passage for the materials falling on the surface of the bottom plate to enter the aggregate funnel. A cleaning door is arranged on the bottom side end face of the aggregate funnel.

[0013] Further, the color tapes include longitudinal color tapes arranged along the extension direction of the bottom plate and transverse color tapes vertically arranged at the ends of the longitudinal color tapes. The longitudinal color tapes are located at the middle position of the surface of the bottom plate. The number of the transverse color tapes is several. The several transverse color tapes are evenly distributed at the head and tail ends of the longitudinal color tapes.

[0014] Further, the top plate is set as a rectangular plate-like structure. The bottom end face of the top plate is bolted to the motor bracket. The bottom end of the motor bracket is bolted to the driving motor. The output end of the driving motor penetrates through the side end face of the motor bracket and is connected to the driving wheel.

[0015] Further, the storage board is located at the middle position of the bottom of the top board. The shape and structure of the storage board are set as a rectangle, and its area is smaller than that of the top board. A power socket for placing a power supply is arranged on the upper surface of the side end of the storage board, and a motor drive board and a single-chip microcomputer controller are sequentially placed beside the power socket.

[0016] Further, the single-chip microcomputer controller adopts a control board with the model of STM32, the grayscale sensor adopts an eight-channel integrated grayscale sensor, and the start button adopts a reset button.

[0017] Further, the bottom end surface of the cleaning brush is closely attached to the surface of the bottom board. Symmetrically arranged connecting arms are provided on one side end face of the cleaning brush close to the robot main body. The connecting arms are connected to the motor brackets to fasten the cleaning brush to the front and rear ends of the robot main body. Long round holes are opened at the ends of the connecting arms, and the cleaning brush and the connecting arms can be fastened together through the cooperation of the long round holes and bolts.

[0018] The present invention also provides a method for cleaning the bottom board of a belt conveyor, which is applied to the above-mentioned belt conveyor bottom board cleaning system. The specific steps include:

[0019] Step S1: Debug the equipment, set the number of round trips, and place the cleaning device

[0020] First, by adjusting the position of the long round hole opened at the end of the connecting arm relative to the bolt connected therewith, the degree of attachment of the bottom end surface of the cleaning brush to the surface of the bottom board is adjusted to achieve the purpose of maximizing the cleaning and scraping of the material falling on the surface of the bottom board. Subsequently, according to the operation requirements, the number of round trips of the cleaning device on the surface of the bottom board is preset through the single-chip microcomputer controller, and the robot main body is placed in the middle at the head end of the surface of the bottom board, so that the grayscale sensor A and the grayscale sensor B can be aligned with the longitudinal color bands respectively;

[0021] Step S2: Connect the power supply and start the operation of the cleaning device

[0022] After powering on the control system, press the start button so that the single-chip microcomputer controller receives the start signal to enter the working state. Subsequently, the single-chip microcomputer controller sends an execution signal to the grayscale sensor B, causing the grayscale sensor B to detect the grayscale value on the surface of the bottom plate to determine the position of the longitudinal color band, and converting the detection result into an electrical signal and transmitting it to the single-chip microcomputer controller. The single-chip microcomputer controller sends an execution signal to the motor driver board according to the electrical signal transmitted by the grayscale sensor B, enabling it to start the driving motor to drive the driving wheel to act. The robot body travels along the area involved by the longitudinal color band under the drive of the driving wheel. During this period, the front brush in contact with the surface of the bottom plate pushes the material falling on the surface of the bottom plate from the head end of the bottom plate to the tail end of the bottom plate, causing the material concentrated at the end face on the side of the front brush away from the robot body to fall into the aggregate hopper through the dust collection port. At this time, the robot body still follows the extension of the longitudinal color band and continues to travel towards the tail end of the bottom plate until the grayscale sensors C and D detect the grayscale value of the transverse color band and feedback a signal to the single-chip microcomputer controller. The single-chip microcomputer controller immediately sends a signal to the motor driver board that can reverse the driving motor, thereby controlling the robot body to return; during the return journey of the robot body driving the cleaning brush, the rear brush in contact with the surface of the bottom plate pushes the material falling on the surface of the bottom plate from the tail end of the bottom plate to the head end of the bottom plate again, causing the material concentrated at the end face on the side of the rear brush away from the robot body to be pushed out of the extended area of the bottom plate until the grayscale sensors C and D detect the grayscale value of the transverse color band again and feedback a signal to the single-chip microcomputer controller. The single-chip microcomputer controller controls the robot body to return again. After completing all the operations, the cleaning and scraping work of the material falling on the surface of the bottom plate is completed;

[0023] Step S3: Clean the aggregate hopper

[0024] According to the cleaning frequency and the amount of accumulated dirt, open the cleaning door at regular intervals to clean the material collected in the aggregate hopper.

[0025] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0026] 1. The structure of the present invention is reasonably designed, with good cleaning effect and high cleaning efficiency. The cleaning device can remove the material adhering to the surface of the bottom plate. The robot body drives the cleaning brush to act on the surface of the bottom plate so that the cleaning brush cleans and scrapes the accumulated material on the surface of the bottom plate, realizing automatic cleaning operation, saving manpower, reducing the labor intensity of the staff, avoiding high-altitude operation, and reducing the danger of personnel operation;

[0027] 2. The present invention provides a longitudinal color band that cooperates with a grayscale sensor to guide the robot body to move along the extension direction of the base plate, and provides a transverse color band that cooperates with the grayscale sensor to constrain the robot body's travel to guide the timing of the robot body turning around and returning, thereby achieving the purpose of the robot body moving back and forth on the base plate surface, thereby improving the cleaning effect of the base plate surface;

[0028] Other beneficial effects of the present invention will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 Schematic diagram A of the overall structure of the present invention;

[0031] Figure 2 Schematic diagram B of the overall structure of the present invention;

[0032] Figure 3 It is a schematic structural diagram of the cleaning device of the present invention;

[0033] Figure 4 It is a bottom view structural schematic diagram of the cleaning device of the present invention;

[0034] Figure 5 A schematic structural diagram of the cleaning device of the present invention with the top plate removed;

[0035] Figure 6 Schematic diagram of the internal structure of the robot body of the present invention;

[0036] Figure 7 This is a schematic structural diagram of the rear left arm of the connecting arm of the present invention;

[0037] Figure 8 This is a schematic structural diagram of the rear right arm of the connecting arm of the present invention.

[0038] Among them: 1. Bracket; 2. Bottom plate; 3. Ribbon; 4. Aggregate hopper; 5. Dust outlet; 6. Robot body; 7. Top plate; 8. Drive motor; 9. Motor bracket; 10. Drive wheel; 11. Rear left arm; 12. Front right arm; 13. Rear brush; 14. Front brush; 15. Grayscale sensor A; 16. Grayscale sensor B; 17. Grayscale sensor C; 18. Grayscale sensor D; 19. Power supply slot; 20. Motor drive board; 21. Single chip microcomputer controller; 22. Storage board; 23. Front left arm; 24. Rear right arm; 25. Upper block column; 26. Lower block column; 27. Cleaning door; 28. Power supply; 29. Start button. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0040] As Figures 1 to 8 shown, the present invention provides a belt conveyor bottom plate cleaning system,

[0041] which includes a support device and a cleaning device placed on its surface.

[0042] The support device has the function of providing support and a cleaning area for the cleaning device. The support device includes a bracket 1 and a bottom plate 2 inclined at its top end. Lower stop columns 26 and upper stop columns 25 are respectively arranged at the head and tail ends of the bottom plate 2. The tail of the bottom plate 2 is connected to an aggregate hopper 4 through a dust falling port 5 opened on its surface. Color bands 3 are arranged on the surface of the bottom plate 2.

[0043] The cleaning device has the function of cleaning the material falling on the surface of the bottom plate 2 and pushing it to the material collection area. The cleaning device includes a robot main body 6 and cleaning brushes symmetrically arranged at its front and rear ends. The robot main body 6 includes a top plate 7 and a traveling mechanism arranged at its bottom. The traveling mechanism includes a motor bracket 91, a driving motor 8 located at the bottom end of the motor bracket 91, and a driving wheel 10 connected to the output end of the driving motor 8. A placing plate 22 is suspended below the top plate 7 through copper columns. A control system electrically connected to the traveling mechanism is arranged on the surface of the placing plate 22.

[0044] The control system has the function of controlling the reciprocating movement of the cleaning device on the surface of the bottom plate 2. The control system includes a single-chip microcomputer controller 21 placed on the surface of the placing plate 22, a gray-scale sensor, a motor driving board 20, and a start button 29 that are respectively electrically connected to it. The gray-scale sensors are respectively located at the front, rear, left, and right sides below the top plate 7. The motor driving board 20 is electrically connected to the driving motor 8. The start button 29 is arranged on the surface of the top plate 7. The single-chip microcomputer controller 21 is also electrically connected to a power supply 28.

[0045] In the embodiments of the present invention, the bracket 1 can provide a supporting function for the bottom plate 2 and the component mechanisms thereon. The bottom plate 2 can receive the materials adhered to and dropped from the surface of the belt of the belt conveyor. The cross-section of the bottom plate 2 is a U-shaped structure. The design of this shape can prevent the situation that when the cleaning device cleans and pushes the materials on the surface of the bottom plate 2, the materials are pushed out from the left and right ends of the bottom plate 2 and fall into the working environment. The lower stop post is vertically arranged on the upper surface of the front end of the bottom plate 2, and the upper stop post 25 is vertically arranged on the upper surface of the rear end of the bottom plate 2. The lower stop post 26 and the upper stop post 25 can limit the running range of the cleaning device on the surface of the bottom plate 2 and prevent the cleaning device from falling from the front end or the two ends of the bottom plate 2;

[0046] Specifically, the lower stop post 26 is a long stud, and its number is five, which are evenly distributed on the upper surface of the front end of the bottom plate 2. The upper stop post 25 is also a long stud, and its number is the same as that of the lower stop post 26, and they are evenly distributed on the upper surface of the rear end of the bottom plate 2;

[0047] In the embodiments of the present invention, the opening shape of the dust fall opening 5 is rectangular, and it is located in front of the upper stop post 25. The opening width of the dust fall opening 5 is the same as the width of the bottom surface of the bottom plate 2. The cleaning device cleans and pushes the materials on the surface of the bottom plate 2 to the dust fall opening 5, so that the materials fall into the aggregate funnel 4 through the dust fall opening 5 to achieve the purpose of recovering the materials falling on the surface of the bottom plate 2. The aggregate funnel 4 is located below the bottom plate 2. The aggregate funnel 4 is provided with a feed inlet, and the feed inlet of the aggregate funnel 4 is fixedly connected to the dust fall opening 5 to form a passage for the materials falling on the surface of the bottom plate 2 to enter the aggregate funnel 4. A cleaning door 27 is arranged on the bottom side end surface of the aggregate funnel 4, and through the cleaning door 27, the materials that have been collected in the aggregate funnel 4 for a period of time can be centrally removed;

[0048] In the embodiments of the present invention, the color of the color strip 3 is black to ensure that the color of the color strip 3 can be clearly distinguished from the color of the bottom plate 2 and the gray value of the color strip 3 will not be affected by excessive light. The color strip 3 includes a longitudinal color strip arranged along the extension direction of the bottom plate 2 and a transverse color strip vertically arranged at the end of the longitudinal color strip. The longitudinal color strip is located at the middle position of the surface of the bottom plate 2, and the longitudinal color strip is used to guide the robot main body 6 to walk along the extension direction of the bottom plate 2. The number of the transverse color strips is several, and several transverse color strips are evenly distributed at the front and rear ends of the longitudinal color strip. The transverse color strips are used to restrict the travel of the robot main body 6 to guide the timing of the robot main body 6 to turn around and return. The setting of several transverse color strips can improve the safety of the limit detection of the robot main body 6;

[0049] Specifically, the number of horizontal color bands is set to four. The front ends and rear ends of the vertical color bands are respectively vertically provided with two mutually parallel horizontal color bands. The two horizontal color bands provided at the front end of the vertical color band are both located behind the lower retaining post 26, and the two horizontal color bands provided at the rear end of the vertical color band are both located in front of the dust fall port 5;

[0050] In the embodiment of the present invention, the robot main body 6 can drive the cleaning brush to move back and forth on the surface of the bottom plate 2. The top plate 7 has the function of providing support for the structural components at its bottom end. The traveling mechanism has the function of providing traveling support for the robot main body 6. The top plate 7 is set as a rectangular plate-like structure. The bottom end surface of the top plate 7 is bolted to the motor bracket 91. The bottom end of the motor bracket 91 is bolted to the driving motor 8. The output end of the driving motor 8 penetrates through the side end surface of the motor bracket 91 and is connected to the driving wheel 10. When the driving motor 8 is powered on and operates, the driving wheel 10 connected to the driving motor 8 rotates to drive the robot main body 6 to travel on the surface of the bottom plate 2;

[0051] Specifically, the number of the traveling mechanisms is set to four. Correspondingly, the number of the motor brackets 91, the driving motors 8, and the driving wheels 10 are all set to four. The four motor brackets 91 are installed at the four corners of the top plate 7 so that the four motor brackets 91 can be symmetrically arranged in pairs, and the arrangement positions of the driving wheels 10 all face the outside of the robot main body 6;

[0052] In the embodiment of the present invention, the driving wheel 10 adopts a Mecanum wheel, and it can also adopt a rubber wheel. The rubber wheel has a large grounding area and strong grip, and is suitable for driving the cleaning device to clean and scrape the falling materials on the surface of the bottom plate 2 on the surface of the bottom plate 2 with a larger inclination angle;

[0053] In the embodiment of the present invention, the placement plate 22 has the function of carrying each component in the control system. The placement plate 22 is located at the middle position of the bottom of the top plate 7. The shape structure of the placement plate 22 is set as a rectangle, and its area is smaller than the area of the top plate 7. A power supply 28 slot 19 for placing the power supply 28 is provided on the upper surface of the side end of the placement plate 22. The setting of the power supply 28 slot 19 enables the staff to quickly replace the power supply 28, achieving the purpose of immediately starting the robot main body 6 to perform operations here. The motor drive board 20 and the single-chip microcomputer controller 21 are sequentially placed beside the power supply 28 slot 19;

[0054] In the embodiment of the present invention, the single-chip microcomputer controller 21 adopts a control board with the model number STM32, which has the function of controlling the overall normal operation of the system; it should be noted that this application does not improve the programmable program of the STM32 control board, but only uses its existing control program and principle to realize the data transmission and execution times limiting functions; regarding the control program and principle involved, reference can be made to the product manual of this control board or the existing technical materials;

[0055] The grayscale sensor adopts an eight-channel integrated grayscale sensor, which can determine the position of the color band 3 by detecting the grayscale value on the surface of the bottom plate 2 and convert the detection result into an electrical signal for transmission to the single-chip microcomputer controller 21, so that the single-chip microcomputer controller 21 controls the robot body 6 to travel or turn around and return within the area covered by the color band 3. Specifically, the number of the grayscale sensors is set to four, namely grayscale sensor A15, grayscale sensor B16, grayscale sensor C17 and grayscale sensor D18. Among them, the grayscale sensor A15 is hoisted by a copper column at the middle position of the rear side under the top plate 7, the grayscale sensor B16 is hoisted by a copper column at the middle position of the front side under the top plate 7. The grayscale sensors A15 and B16 can detect the grayscale value of the longitudinal color band on the surface of the bottom plate 2, so that the single-chip microcomputer controller 21 controls the robot body 6 to travel along the extension direction of the longitudinal color band. The grayscale sensor C17 is hoisted by a copper column at the middle position of the left side under the top plate 7, and the grayscale sensor D18 is hoisted by a copper column at the middle position of the right side under the top plate 7. The grayscale sensors C17 and D18 can detect the grayscale value of the transverse color band on the surface of the bottom plate 2, so that the single-chip microcomputer controller 21 controls the robot body 6 to turn around and return at the end of the longitudinal color band. The grayscale sensors A15, B16, C17 and D18 are all electrically connected to the single-chip microcomputer controller 21;

[0056] The motor drive board 20 can provide high-power output for the drive motor 8, so as to facilitate the robot body 6 to climb and travel from the head end to the tail end on the surface of the bottom plate 2. The start button 29 adopts a reset button, which can start the single-chip microcomputer controller 21 to make it enter the working state. The power supply 28 can provide power support for the control system. After the power supply 28 is connected to the control system, press the start button 29 so that the single-chip microcomputer controller 21 receives the start signal to enter the working state. Subsequently, the single-chip microcomputer controller 21 sends an execution signal to the grayscale sensor so that the grayscale sensor detects the grayscale value on the surface of the bottom plate 2 to determine the position of the color band 3, and converts the detection result into an electrical signal for transmission to the single-chip microcomputer controller 21. The single-chip microcomputer controller 21 sends an execution signal to the motor drive board 20 according to the electrical signal transmitted by the grayscale sensor, so as to start the drive motor 8 to drive the drive wheel 10 to act. The robot body 6 travels or stops along the area covered by the color band 3 under the drive of the drive wheel 10;

[0057] In the embodiments of the present invention, the cleaning brush functions to sweep, scrape the material falling on the surface of the bottom plate 2 and push it to the dust collection port 5 under the drive of the robot body 6. The bottom end surface of the cleaning brush is closely attached to the surface of the bottom plate 2. Connecting arms are symmetrically arranged on one side end surface of the cleaning brush close to the robot body 6. The connecting arms are connected to the motor bracket 91 to fasten the cleaning brush to the front and rear ends of the robot body 6. Specifically, the cleaning brush located at the front end of the robot body 6 is regarded as the front brush 14. The connecting arm located on the left side of the side end surface of the front brush 14 close to the robot body 6 is the front left arm 23, and the connecting arm located on the right side is the front right arm 12. The cleaning brush located at the rear end of the robot body 6 is regarded as the rear brush 13. The connecting arm located on the left side of the side end surface of the rear brush 13 close to the robot body 6 is the rear left arm 11, and the connecting arm located on the right side is the rear right arm 24.

[0058] A long circular hole is provided at the end of the connecting arm. Through the cooperation of the long circular hole and the bolt, the cleaning brush and the connecting arm can be fastened together. The setting of the long circular hole facilitates the precise adjustment of the fitting degree between the bottom end surface of the cleaning brush and the surface of the bottom plate 2, so as to achieve the purpose of sweeping and scraping the material falling on the surface of the bottom plate 2 to the maximum extent.

[0059] The present invention also provides a method for cleaning the bottom plate of a belt conveyor, which is applied to the above-mentioned belt conveyor bottom plate cleaning system. The specific steps include:

[0060] Step S1: Debug the equipment, set the number of round trips, and place the cleaning device

[0061] First, by adjusting the position of the long circular hole provided at the end of the connecting arm relative to the bolt that is connected to it, the fitting degree between the bottom end surface of the cleaning brush and the surface of the bottom plate 2 is adjusted to achieve the purpose of sweeping and scraping the material falling on the surface of the bottom plate 2 to the maximum extent. Subsequently, according to the operation requirements, the number of round trips of the cleaning device on the surface of the bottom plate 2 is preset through the single-chip microcomputer controller 21, and the robot body 6 is placed in the middle at the front end of the surface of the bottom plate 2, so that the gray-scale sensor A15 and the gray-scale sensor B16 can be aligned with the longitudinal color band respectively;

[0062] Step S2: Connect the power supply 28 and start the operation of the cleaning device

[0063] After the power supply 28 is connected to the control system, press the start button 29 so that the single-chip microcomputer controller 21 receives a start signal to enter the working state. Subsequently, the single-chip microcomputer controller 21 sends an execution signal to the grayscale sensor B16 so that the grayscale sensor B16 detects the grayscale value on the surface of the bottom plate 2 to determine the longitudinal color band position, and converts the detection result into an electrical signal and transmits it to the single-chip microcomputer controller 21. The single-chip microcomputer controller 21 sends an execution signal to the motor drive board 20 according to the electrical signal transmitted by the grayscale sensor B16, so that it starts the drive motor 8 to drive the drive wheel 10 to act. The robot main body 6 travels along the area involved by the longitudinal color band under the drive of the drive wheel 10. During this period, the front brush 14 in contact with the surface of the bottom plate 2 pushes the material falling on the surface of the bottom plate 2 from the head end of the bottom plate 2 to the tail end of the bottom plate 2, so that the material concentrated at the end face on the side of the front brush 14 away from the robot main body 6 falls into the aggregate funnel 4 through the dust fall port 5. At this time, the robot main body 6 still follows the extension of the longitudinal color band and continues to travel towards the tail end of the bottom plate 2 until the grayscale sensors C17 and D18 detect the grayscale value of the transverse color band and send a signal to the single-chip microcomputer controller 21. The single-chip microcomputer controller 21 immediately sends a signal to the motor drive board 20 that can reverse the drive motor 8, so as to control the robot main body 6 to return; during the period when the robot main body 6 drives the cleaning brush to return, the rear brush 13 in contact with the surface of the bottom plate 2 pushes the material falling on the surface of the bottom plate 2 from the tail end of the bottom plate 2 to the head end of the bottom plate 2 again, so that the material concentrated at the end face on the side of the rear brush 13 away from the robot main body 6 is pushed out of the extended area of the bottom plate 2 until the grayscale sensors C17 and D18 detect the grayscale value of the transverse color band again and send a signal to the single-chip microcomputer controller 21. The single-chip microcomputer controller 21 controls the robot main body 6 to return again. After executing all the times, the cleaning and scraping work of the material falling on the surface of the bottom plate 2 is completed;

[0064] Step S3: Clean the aggregate funnel 4

[0065] According to the cleaning frequency and the amount of accumulated dirt, open the cleaning door 27 at regular intervals to clean the material stored in the aggregate funnel 4.

[0066] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A belt conveyor bottom plate cleaning system, characterized in that: It includes a support device and a cleaning device placed on its surface. The support device has the function of providing support and a cleaning area for the cleaning device. The support device includes a bracket and a bottom plate inclined at its top end. Lower stop columns and upper stop columns are respectively arranged at the head and tail ends of the bottom plate. The tail of the bottom plate is connected to an aggregate funnel through a dust fall opening opened on its surface. Color bands are arranged on the surface of the bottom plate. The cleaning device has the function of cleaning the material falling on the surface of the bottom plate and pushing it to the material collection area. The cleaning device includes a robot main body and cleaning brushes symmetrically arranged at its front and rear ends. The robot main body includes a top plate and a traveling mechanism arranged at its bottom. The traveling mechanism includes a motor bracket, a driving motor located at the bottom end of the motor bracket, and a driving wheel connected to the output end of the driving motor. The bottom of the top plate is suspended with a placement plate through copper columns. A control system electrically connected to the traveling mechanism is arranged on the surface of the placement plate. The control system has the function of controlling the reciprocating movement of the cleaning device on the surface of the bottom plate. The control system includes a single-chip microcomputer controller placed on the surface of the placement plate, a grayscale sensor, a motor drive board, and a start button that are respectively electrically connected to it. The grayscale sensors are respectively located at the front, rear, left, and right sides below the top plate. The motor drive board is electrically connected to the driving motor. The start button is arranged on the surface of the top plate. The single-chip microcomputer controller is also electrically connected to a power supply.

2. The belt conveyor bottom plate cleaning system according to claim 1, characterized in that: The cross-section of the bottom plate is a U-shaped structure. The lower stop column is vertically arranged on the upper surface of the head end of the bottom plate. The upper stop column is vertically arranged on the upper surface of the tail end of the bottom plate. The lower stop column and the upper stop column can limit the running range of the cleaning device on the surface of the bottom plate.

3. The bottom plate cleaning system of a belt conveyor according to claim 1, characterized in that: The dust fall opening is rectangular in shape. It is located in front of the upper stop column. The opening width of the dust fall opening is the same as the bottom surface width of the bottom plate. The aggregate funnel is located below the bottom plate. The aggregate funnel is provided with a feed inlet. The feed inlet of the aggregate funnel is fixedly connected to the dust fall opening to form a passage for the material falling on the surface of the bottom plate to enter the aggregate funnel. A cleaning door is arranged on the bottom side end face of the aggregate funnel.

4. A belt conveyor bottom plate cleaning system according to claim 1, characterized in that: The color bands include longitudinal color bands arranged along the extension direction of the bottom plate and transverse color bands vertically arranged at the ends of the longitudinal color bands. The longitudinal color bands are located at the middle position of the surface of the bottom plate. The number of the transverse color bands is several. The several transverse color bands are evenly distributed at the head and tail ends of the longitudinal color bands.

5. The belt conveyor bottom plate cleaning system according to claim 1, characterized in that: The top plate is set as a rectangular plate-like structure. The bottom end face of the top plate is bolted to the motor bracket. The bottom end of the motor bracket is bolted to the driving motor. The output end of the driving motor penetrates the side end face of the motor bracket and is connected to the driving wheel.

6. The belt conveyor bottom plate cleaning system according to claim 1, wherein: The placement plate is located at the middle position of the bottom of the top plate. The shape structure of the placement plate is set as a rectangle, and its area is smaller than that of the top plate. A power supply slot for placing the power supply is arranged on the upper surface of the side end of the placement plate. The motor drive board and the single-chip microcomputer controller are sequentially placed beside the power supply slot.

7. The belt conveyor bottom plate cleaning system according to claim 1, characterized in that: The single-chip microcomputer controller adopts a control board with the model of STM32. The grayscale sensor adopts an eight-channel integrated grayscale sensor. The start button adopts a reset button.

8. The belt conveyor bottom plate cleaning system according to claim 1, wherein: The bottom end face of the cleaning brush is in close contact with the surface of the bottom plate. On one side of the cleaning brush close to the robot body, connecting arms are symmetrically arranged. The connecting arms are connected to the motor bracket to fasten the cleaning brush to the front and rear ends of the robot body. A long circular hole is formed at the end of the connecting arm. The cleaning brush and the connecting arm can be fastened together through the cooperation of the long circular hole and the bolt.

9. A method for cleaning the bottom plate of a belt conveyor, which is applied to the belt conveyor bottom plate cleaning system described in any one of claims 1 to 8, and is characterized in that: The specific steps include: Step S1: Debug the equipment, set the number of round trips, and place the cleaning device First, by adjusting the position of the long circular hole formed at the end of the connecting arm relative to the bolt connected thereto, the degree of fit between the bottom end face of the cleaning brush and the surface of the bottom plate is adjusted to achieve the purpose of maximizing the cleaning and scraping of the materials falling on the surface of the bottom plate. Subsequently, according to the operation requirements, the number of round trips of the cleaning device on the surface of the bottom plate is preset through the single-chip microcomputer controller, and the robot body is placed in the middle at the head end of the surface of the bottom plate, so that the gray-scale sensor A and the gray-scale sensor B can be aligned with the longitudinal color band respectively; Step S2: Connect the power supply and start the operation of the cleaning device After the power supply is connected to the control system, press the start button so that the single-chip microcomputer controller receives the start signal to enter the working state. Subsequently, the single-chip microcomputer controller sends an execution signal to the gray-scale sensor B so that the gray-scale sensor B detects the gray-scale value of the surface of the bottom plate to determine the position of the longitudinal color band, and converts the detection result into an electrical signal and transmits it to the single-chip microcomputer controller. The single-chip microcomputer controller sends an execution signal to the motor drive board according to the electrical signal transmitted by the gray-scale sensor B to start the drive motor to drive the drive wheel to act. The robot body travels along the area involved by the longitudinal color band under the drive of the drive wheel. During this period, the front brush in contact with the surface of the bottom plate pushes the materials falling on the surface of the bottom plate from the head end of the bottom plate to the tail end of the bottom plate, so that the materials concentrated at the end face of the front brush far from the robot body fall into the aggregate hopper through the dust fall port. At this time, the robot body still follows the extension of the longitudinal color band and continues to travel towards the tail end of the bottom plate until the gray-scale sensor C and the gray-scale sensor D detect the gray-scale value of the transverse color band and feedback signals to the single-chip microcomputer controller. The single-chip microcomputer controller immediately sends a signal to the motor drive board that can reverse the drive motor to control the robot body to return; during the period when the robot body drives the cleaning brush to return, the rear brush in contact with the surface of the bottom plate pushes the materials falling on the surface of the bottom plate from the tail end of the bottom plate to the head end of the bottom plate, so that the materials concentrated at the end face of the rear brush far from the robot body are pushed out of the extended area of the bottom plate until the gray-scale sensor C and the gray-scale sensor D detect the gray-scale value of the transverse color band again and feedback signals to the single-chip microcomputer controller. The single-chip microcomputer controller controls the robot body to return again. After all the times are completed, the cleaning and scraping work of the materials falling on the surface of the bottom plate is completed; Step S3: Clean the aggregate hopper According to the cleaning frequency and the amount of accumulated dirt, open the cleaning door at regular intervals to clean the materials collected in the aggregate hopper.

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