A cleaning device for cleaning the belt surface of the belt conveyor and a cleaning method thereof

Abstract

The application is a cleaning device for cleaning the belt conveyor surface and its cleaning method, which comprises a mounting shell and a brush. The inside of the mounting shell is provided with two parallel rolling cylinders. The two ends of the rolling cylinders are provided with fixed plates with the same coaxial line. The fixed plates are fixedly installed on the inner surface of the mounting shell, and the circular arc surface of the fixed plate is in rotating sealing connection with the inner surface of the rolling cylinder. The side of the fixed plate away from the mounting shell is respectively provided with a cam groove. The cam groove is respectively provided with a proximal convex groove and a distal convex groove. The proximal convex groove is a wave-shaped sliding groove. The distal convex groove is arranged at the same center as the fixed plate. The proximal convex groove is arranged eccentrically with the center of the fixed plate. The proximal convex groove and the distal convex groove are connected at the end. The application cleans the powder on the brush by mechanical vibration, and recycles the powder falling on the belt and the brush by using the air suction flow, thereby improving the cleaning efficiency of the powder and the stability of the recycled powder.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor cleaning devices, and in particular to a cleaning device and method for cleaning material adhering to the surface of a belt conveyor. Background Technology

[0002] Belt conveyors are frequently used when transporting powdery materials. Because the belts of these conveyors carry static electricity, powder in contact with the belt surface easily adheres to the belt due to this static charge. In the prior art, Chinese invention patent application CN110203647A discloses a belt powder conveyor cleaner and a conveyor using this cleaner. This patent uses a brush to clean the powder from the belt surface, preventing the cleaned powder from accumulating on the brush. The brush in this patent is made of steel wire, PE wire, or abrasive nylon wire. However, all three materials acquire static electricity after friction. Therefore, although most of the powder falls off the belt, a small amount still adheres to the brush surface due to static electricity. This patent application lacks a device for cleaning the brush, and as more powder adheres to the brush, the cleanliness of the brush on the belt surface decreases.

[0003] This patent application involves installing an air-blowing rod inside the cleaning housing, with multiple air-blowing holes along the belt direction. An air supply device, connected to the air-blowing rod outside the cleaning housing, provides compressed airflow. The air supply device delivers pressurized air sequentially through the air-blowing rod and air-blowing holes into the cleaning housing. A pulse-jet bag filter is connected to the outside of the cleaning housing to collect dust dispersed inside. However, there is a gap between the cleaning housing and the belt, and the cleaning housing itself is not a sealed structure. Additionally, there is a gap between the powder hopper and the belt. The blowing and suction airflows within the cleaning housing interfere with each other, causing some airflow to flow out through the two gaps sequentially. This results in some powder being discharged into the external environment or re-adhering to the belt surface, reducing both the efficiency of the brush cleaning the belt and the recovery of low-grade powder. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provides a cleaning device and method for cleaning the surface of belt conveyors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device for cleaning the surface of a belt conveyor, comprising a mounting shell and a brush, wherein the top of the mounting shell is provided with an opening, and the interior of the mounting shell is provided with two parallel rolling cylinders, both ends of the rolling cylinders are provided with coaxial fixing plates, the fixing plates are fixedly installed on the inner surface of the mounting shell, and the arc surface of the fixing plates is rotatably and sealingly connected with the inner surface of the rolling cylinders.

[0006] The side of the fixed plate away from the mounting shell is provided with cam grooves. The cam grooves are respectively provided with a proximal convex groove and a distal convex groove. The proximal convex groove is a wavy sliding groove. The distal convex groove is set with the same center as the fixed plate. The proximal convex groove is set eccentrically with the center of the fixed plate. The proximal convex groove and the distal convex groove are connected at their ends.

[0007] The inside of the rolling cylinder is provided with multiple long strips, and sliding blocks are installed at both ends of the long strips. One end of each sliding block extends into the distal and proximal protrusion grooves at corresponding positions.

[0008] The surface of the rotating drum has multiple air inlets corresponding to the positions of the long strips. The brush is installed on the surface of the long strips and extends out of the air inlets. A fixing block is fixedly connected to the inner edge of the air inlet. The long strips are slidably connected to the side of the fixing block.

[0009] The mounting housing is equipped with a power mechanism to drive the rotating drums. A powder collection box is installed at the bottom of the mounting housing. A first dust collection mechanism is connected between the two rotating drums and the powder collection box on the same side. A second dust collection mechanism is connected between the mounting housing and the powder collection box. The mounting housing is installed at the bottom of the belt conveyor bracket by screws. The brush contacts the return belt of the belt conveyor.

[0010] Specifically, a mounting shaft is installed through a bearing at the center of the fixed plate. One end of the mounting shaft is installed through a bearing on the side wall of the mounting housing. The other end of the mounting shaft extends into the rolling cylinder and is circumferentially mounted with several connecting rods. The end of the connecting rod away from the mounting shaft is fixed to the inner surface of the rolling cylinder. The mounting shaft is driven to rotate by a power mechanism.

[0011] Specifically, the power mechanism includes pulleys, a transmission belt, and a drive motor. The two pulleys are fixedly connected to two mounting shafts on one side of the mounting housing, and the transmission belt is sleeved on the two pulleys. A motor bracket is mounted on the outer surface of the other side of the mounting housing, and the drive motor is mounted on the motor bracket and fixedly connected to the corresponding mounting shaft through a coupling.

[0012] Specifically, the first dust collection mechanism includes a ventilation duct, a multi-port pipe, a first connecting pipe, and an exhaust fan. The two ventilation ducts are respectively connected to the ends of two mounting shafts opened on the same side. The ventilation ducts are connected to the inner cavity of the rotating cylinder. One end of the first connecting pipe is inserted into the ventilation duct, and the other end is connected to the multi-port pipe. A first rotary seal is fixedly fitted on the surface of the first connecting pipe. The outer circular surface of the first rotary seal matches and is fixed to the inner surface of the ventilation duct. A filter screen is installed through one side of the powder collection box. The exhaust fan is installed at the bottom of the powder collection box. The outlet of the multi-port pipe enters the powder collection box and is connected to the exhaust fan.

[0013] Specifically, the second dust collection mechanism includes an air guide hood and a second connecting pipe. The bottom of the second connecting pipe is connected to a multi-port pipe inside the powder collection box, and the top is connected to the air guide hood. Two rubber sealing rings are fixedly fitted on the outer circular surface of the top of the air guide hood, and the two rubber sealing rings contact the top of the powder collection box and the bottom of the mounting housing, respectively.

[0014] Specifically, a support member is fixedly fitted on the outer surface of the first connecting pipe. The support member is L-shaped and installed on the mounting housing.

[0015] Specifically, the length of the brush is greater than the width of the belt in the conveyor belt.

[0016] Specifically, the side of the fixing block is provided with a dovetail groove, and a dovetail block is slidably provided inside the dovetail groove. The dovetail block is installed on the long strip block.

[0017] Specifically, a second rotary seal is fixedly fitted onto the arc surface of the fixed plate, and the outer circular surface of the second rotary seal is matched and fixed to the inner surface of the rolling cylinder.

[0018] A cleaning method for removing material adhering to the surface of a belt conveyor includes the following steps:

[0019] Step 1: Install the mounting housing at the bottom of the belt conveyor bracket, with the brush bristles in contact with the surface of the belt, and the belt conveyor in operation, at which point the belt is in a state of continuous rotation.

[0020] Step 2: Start the drive motor. The drive motor drives two rolling drums to rotate. The two rolling drums drive multiple brushes to rub and clean the powder on the surface of the belt in turn. At the same time, when the brushes rotate 180 degrees, they gradually retract into the rolling drums and separate the powder adhering to the brushes through mechanical vibration.

[0021] Step 3: Start the exhaust fan at the same time as starting the drive motor. When the exhaust fan is working, it will draw out the air from the mounting housing and the rotating drum. When the air inside the mounting housing is under negative pressure, the surrounding air flows into the mounting housing. The airflow inside the mounting housing is divided into two suction airflows according to the exhaust path of the exhaust fan to recover the powder in the rotating drum and the mounting housing respectively.

[0022] The beneficial effects of this invention are as follows: By placing the brush inside the rolling drum, during the process of the brush contacting the belt and rotating 180 degrees, the brush moves from the distal convex groove to the proximal convex groove via a long strip block. Because the proximal convex groove is eccentrically positioned relative to the center of the fixed plate, the sliding block causes the brush to move eccentrically into the rolling drum. Since the proximal convex groove is a wavy groove with a continuous concave-convex surface, the sliding block vibrates as it moves within it, facilitating the separation of powder from the brush surface during its retraction into the rolling drum. Combined with the operation of the exhaust fan, external airflow flows into the inner cavity of the rolling drum, facilitating the recovery and processing of the powder separated from the brush. Compared to the shortcomings of the prior art, which cannot address the brush cleaning issue and the mutual interference between the blowing and suction airflows, this invention cleans the powder on the brush through mechanical vibration and simultaneously recovers the powder that falls from the belt and brush using suction airflow, thus improving the cleaning efficiency and the stability of powder recovery. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the cleaning device structure of the present invention;

[0024] Figure 2 This is a schematic diagram showing the position of the filter screen in the cleaning device of the present invention;

[0025] Figure 3 This is a schematic diagram of the power mechanism structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the connection between the first connecting pipe and the mounting shaft of the present invention;

[0027] Figure 5 This is a schematic diagram of the first and second dust collection mechanisms of the present invention;

[0028] Figure 6 This is a schematic diagram showing the connection between the fixing plate, the long strip, and the brush of the present invention;

[0029] Figure 7 This is a schematic diagram showing the connection between the sliding block, the proximal protruding groove, and the distal protruding groove of the present invention.

[0030] Figure 8 This is a schematic diagram showing the connection of the connecting rod, mounting shaft, and rolling cylinder of the present invention;

[0031] Figure 9 This is a schematic diagram showing the connection between the elongated block and the fixing block of the present invention;

[0032] Figure 10 This is a schematic diagram showing the connection between the cleaning device of the present invention and the belt conveyor;

[0033] In the diagram: 1-Drive motor; 2-Brush; 3-Multi-port pipe; 4-First connecting pipe; 5-Support component; 6-Pulley; 7-Drive belt; 8-Mounting housing; 9-Rolling drum; 10-Filter screen; 11-Powder collection box; 12-Mounting shaft; 13-Fixing block; 14-First rotary seal; 15-Second rotary seal; 16-Air inlet; 17-Dovetail groove; 18-Fixing plate; 19-Ventilation duct; 20-Air guide hood; 21-Second connecting pipe; 22-Exhaust fan; 23-Long strip block; 24-Sliding block; 25-Connecting rod; 26-Proximal protruding groove; 27-Distal protruding groove; 28-Dovetail block; 29-Rubber sealing ring; 30-Belt conveyor;

[0034] The following will describe in detail, with reference to the accompanying drawings, embodiments of the present invention. Detailed Implementation

[0035] The present invention will be further described below with reference to embodiments:

[0036] like Figures 1-10 As shown, a cleaning device for cleaning the surface of a belt conveyor includes a mounting housing 8 and a brush 2. The top of the mounting housing 8 is provided with an opening. The mounting housing 8 is installed at the bottom of the support of the belt conveyor 30 by screws. The brush 2 is in contact with the return belt of the belt conveyor 30.

[0037] The mounting housing 8 contains two parallel rolling cylinders 9. Both ends of the rolling cylinders 9 are equipped with coaxial fixing plates 18. The fixing plates 18 are fixedly installed on the inner surface of the mounting housing 8, and the arc surface of the fixing plates 18 is rotatably and sealingly connected to the inner surface of the rolling cylinders 9. Specifically, the fixing plates 18 are equipped with multiple fixing rods by screws, and one end of the fixing rods is installed on the inner surface of the mounting housing 8 by screws. The arc surface of the fixing plates 18 is fixedly fitted with a second rotary seal 15. The outer circular surface of the second rotary seal 15 is matched and fixed to the inner surface of the rolling cylinders 9. The second rotary seal 15 improves the sealing performance of the rolling cylinders 9 when rotating on the arc surface of the fixing plates 18.

[0038] The fixing plate 18 has cam grooves on the side opposite to the mounting housing 8. The cam grooves have a proximal convex groove 26 and a distal convex groove 27. The proximal convex groove 26 is a wavy groove. The distal convex groove 27 is set with the same center as the fixing plate 18. The proximal convex groove 26 is set off from the center of the mounting plate 18. The proximal convex groove 26 and the distal convex groove 27 are connected at their ends.

[0039] The interior of the rolling cylinder 9 is provided with multiple elongated blocks 23. Sliding blocks 24 are installed at both ends of the elongated blocks 23. One end of each sliding block 24 extends into the corresponding distal protrusion groove 27 and proximal protrusion groove 26. The surface of the rolling cylinder 9 is provided with multiple air inlets 16 corresponding to the positions of the elongated blocks 23. The brush 2 is installed on the surface of the elongated blocks 23 and extends through the air inlets 16. A fixing block 13 is fixedly connected to the inner edge of the air inlet 16. The elongated blocks 23 are slidably connected to the side of the fixing block 13. A dovetail groove 17 is provided on the side of the fixing block 13. A dovetail block 28 is slidably installed inside the dovetail groove 17 and is installed on the elongated blocks 23. The maximum distance between the outer arc of the proximal protrusion groove 26 and the side arc of the fixing plate 18 is greater than the sum of the dimensions between the brush 2 and the elongated blocks 23, which facilitates the brush 2 to retract into the interior of the rolling cylinder 9.

[0040] Specifically, the sliding block 24 slides along the inner surfaces of the proximal protrusion groove 26 and the distal protrusion groove 27. After being subjected to force, the long strip 23 first drives the sliding block 24 to slide along the arcuate inner wall of the distal protrusion groove 27. When the sliding block 24 moves to the initial section of the proximal protrusion groove 26, due to the eccentric setting of the proximal protrusion groove 26 and the center of the fixed plate 18, the movement trajectory of the sliding block 24 changes. However, the rolling cylinder 9 still rotates in a circular motion. Therefore, the sliding block 24 moves along the proximal protrusion groove 26. While sliding in the moving groove 26, it also drives the long strip block 23 to slide in the dovetail groove 17 through the dovetail block 28. When the sliding block 24 moves to the middle position of the proximal convex groove 26, the brush 2 moves into the inside of the rolling cylinder 9. Since the proximal convex groove 26 is continuously concave and convex, the sliding block 24 vibrates due to the height fluctuation during the movement. The vibration force is transmitted to the brush 2 in sequence through the sliding block 24 and the fixed block 13. After being subjected to force, the brush 2 vibrates to separate the powder adhering to its surface.

[0041] The air inlet 16 allows external air to flow into the rotating drum 9, facilitating airflow. When the air inlet 16 corresponds to the surface of the belt, the airflow absorbs the powder on the belt surface into the rotating drum 9. Similarly, the powder scattered in the mounting housing 8 can also be transported to the rotating drum 9 through the air inlet 16, improving the efficiency of powder recovery.

[0042] The brush 2 is mounted on the surface of the elongated block 23 by screws. The length of the brush 2 is greater than the width of the belt in the conveyor belt, which increases the contact area between the bristles of the brush 2 and the belt surface, thereby improving the efficiency of cleaning powder from the belt surface. The bristles of the brush 2 pass through the air inlet 16 and extend to the outside of the rotating drum 9. Multiple fixing blocks 13 are mounted inside the air inlet 16 by screws. The side of the fixing block 13 is provided with a dovetail groove 17. A dovetail block 28 is slidably mounted inside the dovetail groove 17. The dovetail block 28 is mounted on the surface of the elongated block 23 by screws, which facilitates the synchronous rotation of the elongated block 23 when the rotating drum 9 rotates, thereby facilitating the synchronous rotation of the brush 2. When the brush 2 retracts into the rotating drum 9, the elongated block 23 slides in the dovetail groove 17 through the dovetail block 28, which improves the stability of the brush 2 moving in the rotating drum 9.

[0043] The mounting housing 8 is equipped with a power mechanism for driving the rotating drum 9. A mounting shaft 12 is installed through the center of the fixing plate 18 via a bearing. One end of the mounting shaft 12 is installed through the bearing on the side wall of the mounting housing 8. The other end of the mounting shaft 12 extends into the drum 9 and is circumferentially mounted with several connecting rods 25. The end of the connecting rod 25 away from the mounting shaft 12 is fixed to the inner surface of the drum 9. The mounting shaft 12 is driven to rotate by the power mechanism. The power mechanism includes a pulley 6, a transmission belt 7, and a drive motor 1. Two pulleys 6 are fixedly connected to two mounting shafts 12 on one side of the mounting housing 8. The transmission belt 7 is sleeved on the two pulleys 6. A motor bracket is installed on the outer surface of the other side of the mounting housing 8. The drive motor 1 is mounted on the motor bracket and fixedly connected to the corresponding mounting shaft 12 via a coupling.

[0044] Specifically, the drive motor 1 is started, and the drive motor 1 controls the installation shaft 12 to rotate. The installation shaft 12 drives the rolling drum 9 to rotate through the connecting rod 25. The rolling drum 9 drives another rolling drum 9 to rotate through the cooperation of two pulleys 6 and the transmission belt 7. After the two rolling drums 9 are subjected to force, they drive multiple brushes 2 to rotate. During the rotation, the powder on the surface of the belt is cleaned, thereby improving the cleaning efficiency of the powder on the surface of the belt.

[0045] A powder collection box 11 is installed at the bottom of the housing 8. A first dust collection mechanism is connected between the two rotating drums 9 on the same side and the powder collection box 11. The first dust collection mechanism includes a ventilation duct 19, a multi-port pipe 3, a first connecting pipe 4, and an exhaust fan 22. The two ventilation ducts 19 pass through the ends of the two mounting shafts 12 opened on the same side. The ventilation ducts 19 and the inner cavity of the rotating drums 9 are connected. One end of the first connecting pipe 4 is inserted into the ventilation duct 19, and the other end is connected to the multi-port pipe 3. A first rotary seal 14 is fixedly sleeved on the surface of the first connecting pipe 4. The outer circular surface of the first rotary seal 14 matches and is fixed to the inner surface of the ventilation duct 19. A filter screen 10 is installed through one side of the powder collection box 11. The filter screen 10 is used for exhaust. The pore size of the filter screen 10 is smaller than the particle size of the powder. The exhaust fan 22 is installed at the bottom of the powder collection box 11. The outlet of the multi-port pipe 3 passes into the powder collection box 11 and is connected to the exhaust fan 22.

[0046] A support member 5 is fixedly sleeved on the outer surface of the first connecting pipe 4. The support member 5 is L-shaped and installed on the mounting housing 8. The support member 5 plays a role in stabilizing the installation position of the first connecting pipe 4 and improving the stability of the connection between the first connecting pipe 4 and the mounting shaft 12.

[0047] Specifically, when the exhaust fan 22 is working, it extracts the gas from the rotating drum 9. The gas in the mounting housing 8 flows into the rotating drum 9 through multiple air inlets 16. The airflow in the rotating drum 9 passes through the ventilation duct 19, the first connecting pipe 4, the multi-port pipe 3, and the exhaust fan 22 in sequence, and then is discharged into the powder collection box 11. When the airflow flows, it carries some of the powder in the mounting housing 8 and the powder in the rotating drum 9 to the powder collection box 11 to complete the powder recycling operation and improve the recycling efficiency of the powder falling on the belt and brush 2.

[0048] A second dust collection mechanism is connected between the mounting housing 8 and the powder collection box 11. The second dust collection mechanism includes an air guide hood 20 and a second connecting pipe 21. The bottom of the second connecting pipe 21 is connected to the multi-port pipe 3 inside the powder collection box 11, and the top is connected to the air guide hood 20. Two rubber sealing rings 29 are fixedly fitted on the outer circular surface of the top of the air guide hood 20. The two rubber sealing rings 29 are in contact with the top of the powder collection box 11 and the bottom of the mounting housing 8, respectively.

[0049] Specifically, when the exhaust fan 22 is working, it extracts the gas inside the mounting housing 8. The process is as follows: the airflow inside the mounting housing 8 passes through the air guide hood 20, the second connecting pipe 21, the multi-port pipe 3 and the exhaust fan 22 in sequence, and then is discharged into the powder collection box 11 for recycling the remaining powder inside the mounting housing 8, which further improves the efficiency of powder recycling.

[0050] In this invention, the drive motor 1 and the exhaust fan 22 are connected to the controller via wires, and the controller is connected to an external power source via wires. The controller can be a power switch or a PLC controller, and the appropriate one can be selected based on the work requirements.

[0051] A cleaning method for removing material adhering to the surface of a belt conveyor includes the following steps:

[0052] Step 1: Install the mounting housing 8 at the bottom of the bracket of the belt conveyor 30, with the bristles of the brush 2 in contact with the surface of the belt, and the belt conveyor 30 in working condition, at which time the belt is in a state of continuous rotation.

[0053] Step 2: Start the drive motor 1. The drive motor 1 drives the two rolling drums 9 to rotate. The two rolling drums 9 drive multiple brushes 2 to rub and clean the powder on the surface of the belt in turn. At the same time, when the brushes 2 rotate 180 degrees, they gradually retract into the rolling drums 9 and separate the powder attached to the brushes 2 by mechanical vibration.

[0054] Step 3: Start the exhaust fan 22 at the same time as starting the drive motor 1. When the exhaust fan 22 is working, it will draw out the air from the mounting housing 8 and the rotating drum 9. When the air in the mounting housing 8 is under negative pressure, the surrounding air flows into the mounting housing 8. The airflow in the mounting housing 8 is divided into two suction airflows according to the suction path of the exhaust fan 22 to recover the powder in the rotating drum 9 and the mounting housing 8 respectively.

[0055] Working principle of this invention:

[0056] The mounting housing 8 is installed on the bottom of the bracket of the belt conveyor 30 with screws. The bristles of the brush 2 are in contact with the surface of the belt, and the belt conveyor 30 is in working condition. At this time, the belt is in a state of continuous rotation. The drive motor 1 is started, and the drive motor 1 drives the connected rolling drum 9 to rotate inside the rolling drum 9. The rolling drum 9 drives another rolling drum 9 to rotate through the cooperation of two pulleys 6 and the transmission belt 7.

[0057] After being subjected to force, the two rolling cylinders 9 drive the long strip block 23 to rotate synchronously through the cooperation of the dovetail block 28 and the dovetail groove 17. After being subjected to force, the long strip block 23 first drives the sliding block 24 to slide along the inner arc of the distal convex groove 27. When the sliding block 24 moves to the initial section of the proximal convex groove 26, the movement trajectory of the sliding block 24 changes because the proximal convex groove 26 is eccentrically set with the center of the fixed plate 18. However, the rolling cylinders 9 still rotate in a circle. Therefore, while the sliding block 24 slides in the proximal convex groove 26, it also drives the long strip block 23 to slide in the dovetail groove 17 through the dovetail block 28.

[0058] When the sliding block 24 moves to the middle position of the proximal protrusion groove 26, the brush 2 moves into the inside of the rolling cylinder 9. Since the proximal protrusion groove 26 is continuously concave and convex, the sliding block 24 vibrates due to the height fluctuation during the movement. The vibration force is transmitted to the brush 2 in sequence through the sliding block 24 and the fixed block 13. After the brush 2 is subjected to force, it vibrates and shakes off the powder attached to its surface.

[0059] When the sliding block 24 moves to the end position of the protruding groove 26, the brush 2 moves out of the rolling cylinder 9 to facilitate the brush 2 to clean the powder on the belt surface again. The present invention improves the efficiency of cleaning the powder on the belt surface by setting multiple brushes 2, which can conveniently perform the cycle of cleaning the powder on the belt surface, cleaning the powder on the brush, and cleaning the powder on the belt surface again.

[0060] At the same time as starting the drive motor 1, the exhaust fan 22 is started. When the exhaust fan 22 is working, it draws out the air inside the mounting housing 8 and the rotating drum 9. When the air inside the mounting housing 8 is in a negative pressure state, the surrounding air flows into the mounting housing 8. The airflow inside the mounting housing 8 is divided into two suction airflows according to the suction path of the exhaust fan 22 to recover the powder in the rotating drum 9 and the mounting housing 8 respectively.

[0061] The first airflow is the airflow inside the rolling drum 9. The airflow flows into the rolling drum 9 through multiple air inlets 16. The airflow inside the rolling drum 9 passes through the ventilation duct 19, the first connecting pipe 4, the multi-port pipe 3 and the exhaust fan 22 in sequence before being discharged into the powder collection box 11. When this airflow flows, it carries some of the powder inside the mounting shell 8 and the powder inside the rolling drum 9 to the powder collection box 11.

[0062] The other airflow is the airflow inside the mounting housing 8. The airflow passes through the air guide hood 20, the second connecting pipe 21, the multi-port pipe 3 and the exhaust fan 22 in sequence before being discharged into the powder collection box 11. This is used to recover the remaining powder inside the mounting housing 8. By recovering the powder through two suction airflows, the powder is prevented from spreading to the external environment, thus improving the powder recovery efficiency.

[0063] This invention cleans the powder on the brush 2 by mechanical vibration, and at the same time uses airflow to recover the powder that falls off the belt and brush 2, thereby improving the cleaning efficiency and the stability of powder recovery.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] The present invention has been described above by way of example. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present invention, or direct application to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A cleaning device for cleaning adhesive residue from the surface of a belt conveyor, comprising a mounting housing (8) and a brush (2), wherein the top of the mounting housing (8) has an opening, characterized in that, The mounting housing (8) contains two parallel rolling cylinders (9). Both ends of the rolling cylinders (9) are provided with coaxial fixing plates (18). The fixing plates (18) are fixedly installed on the inner surface of the mounting housing (8). The arc surface of the fixing plates (18) is rotatably sealed to the inner surface of the rolling cylinders (9). The side of the fixing plates (18) away from the mounting housing (8) is provided with cam grooves. The cam grooves are respectively provided with a proximal convex groove (26) and a distal convex groove (27). The proximal convex groove (26) is a wave-shaped sliding groove. The distal convex groove (27) is set with the same center as the fixing plate (18). The proximal convex groove (26) is set eccentrically with the center of the fixing plate (18). The proximal convex groove (26) and the distal convex groove (27) are connected at their ends. The rolling cylinders (9) contain multiple long strips (23). The two ends of the long strips (23) are provided with sliding blocks (24). One end of the multiple sliding blocks (24) is divided into The protrusion groove (27) and protrusion groove (26) at the corresponding positions are extended to the corresponding positions. The surface of the rolling drum (9) is provided with multiple air inlets (16) corresponding to the positions of the long strip block (23). The brush (2) is installed on the surface of the long strip block (23) and passes through the air inlet (16). The inner edge of the air inlet (16) is fixedly connected to the fixing block (13). The side of the long strip block (23) is slidably connected to the fixing block (13). The mounting shell (8) is provided with a power mechanism to drive the rolling drum (9) to rotate. The bottom of the mounting shell (8) is provided with a powder collection box (11). The same side of the two rolling drums (9) and the powder collection box (11) are connected to the first dust collection mechanism. The mounting shell (8) and the powder collection box (11) are connected to the second dust collection mechanism. The mounting shell (8) is installed at the bottom of the bracket of the belt conveyor (30) by screws. The brush (2) is in contact with the return belt of the belt conveyor (30). A mounting shaft (12) is installed through a bearing at the center of the fixed plate (18). One end of the mounting shaft (12) is installed through a bearing on the side wall of the mounting housing (8). The other end of the mounting shaft (12) extends into the rolling cylinder (9) and is circumferentially mounted with several connecting rods (25). The end of the connecting rod (25) away from the mounting shaft (12) is fixed to the inner surface of the rolling cylinder (9). The mounting shaft (12) is driven to rotate by a power mechanism. The first dust collection mechanism includes a ventilation duct (19), a multi-port pipe (3), a first connecting pipe (4), and an exhaust fan (22). The two ventilation ducts (19) are respectively connected to the ends of the two mounting shafts (12) opened on the same side. The ventilation ducts (19) and the inner cavity of the rolling cylinder (9) are connected. One end of the first connecting pipe (4) is inserted into the ventilation duct (19), and the other end is connected to the multi-port pipe (3). A first rotating seal (14) is fixedly fitted on the surface of the first connecting pipe (4). The outer circular surface of the first rotating seal (14) matches and is fixed with the inner surface of the ventilation duct (19). A filter screen (10) is installed through one side of the powder collection box (11). The exhaust fan (22) is installed at the bottom of the powder collection box (11). The outlet of the multi-port pipe (3) passes into the powder collection box (11) and is connected to the exhaust fan (22).

2. The cleaning device for cleaning material adhering to the surface of a belt conveyor according to claim 1, characterized in that, The power mechanism includes pulleys (6), transmission belts (7), and drive motors (1). The two pulleys (6) are fixedly connected to the two mounting shafts (12) on one side of the mounting housing (8). The transmission belt (7) is sleeved on the two pulleys (6). A motor bracket is installed on the outer surface of the other side of the mounting housing (8). The drive motor (1) is mounted on the motor bracket and fixedly connected to the corresponding mounting shaft (12) through a coupling.

3. A cleaning device for cleaning material adhering to the surface of a belt conveyor according to claim 2, characterized in that, The second dust collection mechanism includes an air guide hood (20) and a second connecting pipe (21). The bottom of the second connecting pipe (21) is connected to the multi-port pipe (3) inside the powder collection box (11), and the top is connected to the air guide hood (20). Two rubber sealing rings (29) are fixedly fitted on the outer surface of the top of the air guide hood (20). The two rubber sealing rings (29) are in contact with the top of the powder collection box (11) and the bottom of the mounting shell (8) respectively.

4. A cleaning device for cleaning material adhering to the surface of a belt conveyor according to claim 3, characterized in that, The outer surface of the first connecting pipe (4) is fixedly fitted with a support (5), which is L-shaped and installed on the mounting shell (8).

5. A cleaning device for cleaning material adhering to the surface of a belt conveyor according to claim 1, characterized in that, The length of the brush (2) is greater than the width of the belt in the conveyor belt.

6. A cleaning device for removing adhesive material from the surface of a belt conveyor according to claim 1, characterized in that, The side of the fixed block (13) is provided with a dovetail groove (17), and a dovetail block (28) is slidably provided inside the dovetail groove (17). The dovetail block (28) is installed on the long strip block (23).

7. A cleaning device for cleaning material adhering to the surface of a belt conveyor according to claim 1, characterized in that, The arc surface of the fixing plate (18) is fixedly fitted with a second rotary seal (15), and the outer circular surface of the second rotary seal (15) is matched and fixed on the inner surface of the rolling cylinder (9).

8. A cleaning method for removing adhesive material from the surface of a belt conveyor, applicable to the cleaning device for removing adhesive material from the surface of a belt conveyor as described in any one of claims 2-3, characterized in that, Includes the following steps: Step 1: Install the mounting housing (8) at the bottom of the bracket of the belt conveyor (30), with the bristles of the brush (2) in contact with the surface of the belt, and the belt conveyor (30) in working condition, at which time the belt is in a state of continuous rotation. Step 2: Start the drive motor (1). The drive motor (1) drives the two rolling drums (9) to rotate. The two rolling drums (9) drive multiple brushes (2) to rub and clean the powder on the surface of the belt in turn. At the same time, when the brushes (2) rotate 180 degrees, they gradually retract into the rolling drums (9) and separate the powder attached to the brushes (2) by mechanical vibration. Step 3: Start the exhaust fan (22) at the same time as starting the drive motor (1). When the exhaust fan (22) is working, it will draw out the air in the mounting shell (8) and the rolling drum (9). When the air in the mounting shell (8) is in a negative pressure state, the surrounding air flows into the mounting shell (8). The airflow in the mounting shell (8) is divided into two suction airflows according to the exhaust path of the exhaust fan (22) to recover the powder in the rolling drum (9) and the mounting shell (8) respectively.

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