Coal sample container cleaning device and cleaning method

Abstract

The present application belongs to the technical field of coal detection, and discloses a coal sample container cleaning device and a cleaning method. The coal sample container cleaning device comprises a locking mechanism, a cleaning mechanism and a blowing mechanism. The locking mechanism comprises a locking disc and a plurality of locking assemblies. The locking disc is rotatable, and the rotational axis of the locking disc does not coincide with its own axis. The locking disc is provided with a through hole in the axial direction. The plurality of locking assemblies are arranged in the locking disc in a circumferential direction. Coal sample containers of different diameters can be locked to the locking disc through the locking assemblies. The cleaning mechanism comprises a liftable cleaning brush. The cleaning brush can rotate around its own axis. The cleaning brush is arranged below the locking disc. The cleaning brush can extend into the coal sample container through the through hole to clean the coal sample container. The blowing mechanism can communicate with the inner cavity of the coal sample container to blow hot air into the coal sample container. The coal sample container cleaning device and the cleaning method can completely clean coal sample containers of different specifications, have high cleaning efficiency and strong versatility.

Description

Technical Field

[0001] This invention relates to the field of coal testing technology, and in particular to a coal sample container cleaning device and cleaning method. Background Technology

[0002] When measuring parameters of coal, a coal sample container is required to hold the coal sample. After each measurement, residual coal slag will remain inside the coal sample container. Therefore, a cleaning device is needed to clean it to prevent the residual coal slag from contaminating new coal samples and affecting the measurement results. For example, patent CN113909240A discloses a cleaning mechanism for loading containers for coal samples. Although this mechanism can clean coal sample containers, it is only applicable to one type of coal sample container and has poor versatility. Summary of the Invention

[0003] The purpose of this invention is to provide a coal sample container cleaning device and cleaning method that can completely clean coal sample containers of different specifications, with high cleaning efficiency and strong versatility.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] On the one hand, a coal sample container cleaning device is provided, comprising:

[0006] A locking mechanism includes a locking disc and multiple locking components. The locking disc is rotatable, and the axis of rotation of the locking disc is not coincident with its own axis. The locking disc is provided with a through hole along the axial direction. The multiple locking components are arranged circumferentially on the locking disc. Coal sample containers of different diameters can be locked to the locking disc by the locking components so that the inner cavity of the coal sample container is opposite to the through hole.

[0007] The cleaning mechanism includes a liftable cleaning brush that can rotate around its own axis. The rotation axis of the locking disc coincides with the axis of the cleaning brush. The cleaning brush is located below the locking disc and can extend into the coal sample container through the through hole to clean the coal sample container.

[0008] A blower mechanism is provided, which is connected to the inner cavity of the coal sample container to blow hot air into the coal sample container.

[0009] Preferably, the locking disc has an installation cavity, and the locking assembly includes a first limiting rod and a second limiting rod. One end of the first limiting rod is radially movably disposed in the installation cavity, and the other end extends into the through hole. The second limiting rod is disposed at the end of the first limiting rod that extends into the through hole. The edge of the container opening of the coal sample container can be limited and abutted against the first limiting rod. By moving the first limiting rod, the second limiting rod can be limited and abutted against the side wall of the coal sample container to lock the coal sample container to the locking disc.

[0010] Preferably, the locking mechanism further includes a locking drive and a linkage structure. The locking drive is rotatably mounted on the locking disc. The output end of the locking drive is rotatably connected to the linkage structure. The end of the first limiting rod away from the second limiting rod is rotatably connected to the linkage structure. The locking drive can drive multiple first limiting rods to move synchronously through the linkage structure.

[0011] Preferably, the linkage structure includes a first linkage and a plurality of second linkages. The first linkage is annular and is rotatably disposed within the mounting cavity along its own axis. The second linkages are correspondingly disposed with the locking components one by one. One end of the second linkage is rotatably connected to the first linkage, and the other end is rotatably connected to the first limiting rod. The output end of the locking drive is rotatably connected to the first linkage to drive the first linkage to rotate around its own axis.

[0012] Preferably, the side wall of the locking disc is provided with a plurality of openings communicating with the mounting cavity, and the openings are provided one-to-one with the locking components, and the first limiting rod extends into the through hole through the openings.

[0013] Preferably, the device further includes a mounting bracket and a drive assembly disposed on the mounting bracket. The drive assembly includes a rotary drive element, a drive rod, and a plurality of third connecting rods. One end of the drive rod is connected to the output end of the rotary drive element, and the other end is rotatably connected to the locking disc. A plurality of third connecting rods are spaced apart along the circumference of the locking disc. One end of each third connecting rod is rotatably connected to the locking disc, and the other end is rotatably connected to the mounting bracket. The rotary drive element can drive the drive rod to rotate, thereby driving the locking disc to rotate.

[0014] Preferably, the cleaning mechanism further includes a cleaning drive component, a lifting drive component, and a connecting frame. The cleaning drive component is disposed on the connecting frame and its output end is connected to the cleaning brush to drive the cleaning brush to rotate. The lifting drive component is disposed on the mounting frame and its output end is connected to the connecting frame to drive the cleaning brush to lift.

[0015] Preferably, the device also includes a first detection element, which is disposed on the locking disc and is used to detect whether a coal sample container is placed on the locking disc.

[0016] Preferably, the system also includes a sewage discharge channel, which is connected to the through hole and to an external recycling device at the other end. The sewage discharge channel covers the cleaning brush, and the debris in the coal sample container can be discharged to the recycling device through the sewage discharge channel.

[0017] On the other hand, a method for cleaning a coal sample container is provided, which uses the above-mentioned coal sample container cleaning device and includes the following steps:

[0018] S1. The coal sample container is locked to the locking disc by the locking assembly, so that the inner cavity of the coal sample container is opposite to the through hole of the locking disc;

[0019] S2. Drive the cleaning brush upward to extend into the inner cavity of the coal sample container until the cleaning brush abuts against the bottom wall of the coal sample container;

[0020] S3. Drive the locking disc and the cleaning brush to rotate, and drive the blower mechanism to blow hot air into the inner cavity of the coal sample container to clean the coal sample container.

[0021] The beneficial effects of this invention are:

[0022] The coal sample container cleaning device and method provided by this invention, in specific use, involves placing the coal sample container with its opening facing downwards on a locking plate, and locking the coal sample container onto the locking plate using locking components, so that the inner cavity of the coal sample container is aligned with the through hole. Then, the cleaning brush is driven upwards until its end abuts against the bottom wall of the coal sample container. Next, the locking plate and cleaning brush are driven to rotate, and a blower is activated to blow hot air into the inner cavity of the coal sample container, thereby cleaning the coal sample container. Multiple locking components can lock coal sample containers of different diameters onto the locking plate, and the cleaning brush can be driven to rise and fall to reach into coal sample containers of different depths for cleaning, thus adapting to different specifications of coal sample containers and exhibiting strong versatility. During cleaning, because the rotation axis of the locking disc is not coincident with its own axis but coincident with the axis of the cleaning brush, the locking disc rotates eccentrically around the cleaning brush. This allows the rotating cleaning brush to completely clean the inner wall of the coal sample container. The rotating locking disc also causes the coal sample container to shake, allowing the residual coal slag inside the coal sample container to fall off more smoothly. The eccentric rotation of the locking disc and the cleaning brush work together to improve cleaning efficiency, thereby completely cleaning the coal sample container. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the coal sample container cleaning device provided by the present invention;

[0024] Figure 2This is a schematic diagram of the coal sample container cleaning device provided by the present invention cleaning one type of coal sample container;

[0025] Figure 3 This is a schematic diagram of the coal sample container cleaning device provided by the present invention cleaning another type of coal sample container.

[0026] Figure 4 This is a three-dimensional schematic diagram of the coal sample container cleaning device provided by the present invention without showing the mounting frame;

[0027] Figure 5 This is a schematic diagram of the internal structure of the locking mechanism of the coal sample container cleaning device provided by the present invention;

[0028] Figure 6 This is a three-dimensional schematic diagram of the locking mechanism of the coal sample container cleaning device provided by the present invention;

[0029] Figure 7 This is a side view of the locking mechanism of the coal sample container cleaning device provided by the present invention;

[0030] Figure 8 This is a schematic diagram of the cleaning mechanism of the coal sample container cleaning device provided by the present invention from one perspective;

[0031] Figure 9 This is a schematic diagram of the cleaning mechanism of the coal sample container cleaning device provided by the present invention from another perspective.

[0032] In the picture:

[0033] 1. Locking mechanism; 11. Locking disc; 111. Through hole; 112. Connecting seat; 113. Fixing plate; 12. Locking assembly; 121. First limiting rod; 122. Second limiting rod; 13. Locking drive component; 14. First connecting rod; 141. Support ball wheel; 15. Second connecting rod; 16. Guide wheel;

[0034] 2. Cleaning mechanism; 21. Cleaning brush; 211. Mounting cylinder; 212. Brush bristles; 213. Air vent; 22. Cleaning drive component; 23. Lifting drive component; 24. Connecting frame; 241. Connecting joint;

[0035] 3. Mounting bracket; 31. First mounting plate; 311. First clearance hole; 32. Second mounting plate;

[0036] 4. Drive assembly; 41. Rotary drive component; 42. Drive rod; 43. Third link;

[0037] 5. Sewage discharge channel;

[0038] 6. First inspection piece;

[0039] 7. Second inspection item;

[0040] 100. Coal sample container. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0042] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0045] See Figures 1 to 9This embodiment provides a coal sample container cleaning device that can completely clean coal sample containers 100 of different specifications, with high cleaning efficiency and strong versatility. The coal sample container cleaning device includes a locking mechanism 1, a cleaning mechanism 2, and a blower mechanism. The locking mechanism 1 includes a locking disc 11 and multiple locking components 12. The locking disc 11 is rotatable, and the rotation axis of the locking disc 11 is not coincident with its own axis. The locking disc 11 has a through hole 111 along the axial direction. The multiple locking components 12 are circumferentially spaced on the locking disc 11. Coal sample containers 100 of different diameters can be locked to the locking disc 11 by the locking components 12, so that the inner cavity of the coal sample container 100 is opposite to the through hole 111. The cleaning mechanism 2 includes a liftable cleaning brush 21, which can rotate around its own axis. The rotation axis of the locking disc 11 coincides with the axis of the cleaning brush 21. The cleaning brush 21 is located below the locking disc 11 and can extend into the coal sample container 100 through the through hole 111 to clean the coal sample container 100. The blower mechanism can communicate with the inner cavity of the coal sample container 100 to blow hot air into the coal sample container 100.

[0046] See Figures 1 to 3 In practical use, the coal sample container 100 is placed face down on the locking plate 11, and the coal sample container 100 is locked onto the locking plate 11 by the locking assembly 12, so that the inner cavity of the coal sample container 100 is aligned with the through hole 111. Then, the cleaning brush 21 is driven to rise until the end of the cleaning brush 21 abuts against the bottom wall of the coal sample container 100. Then, the locking plate 11 and the cleaning brush 21 are driven to rotate, and the blower is activated to blow hot air into the inner cavity of the coal sample container 100, thereby cleaning the coal sample container 100. Multiple locking assemblies 12 can lock coal sample containers 100 of different diameters onto the locking plate 11, and the cleaning brush 21 can be driven to rise and fall to reach into coal sample containers 100 of different depths for cleaning, thus adapting to coal sample containers 100 of different specifications and having strong versatility. During cleaning, since the rotation axis of the locking disc 11 does not coincide with its own axis but coincides with the axis of the cleaning brush 21, that is, the locking disc 11 rotates eccentrically around the cleaning brush 21, the rotating cleaning brush 21 can completely clean the inner wall of the coal sample container 100. The rotating locking disc 11 can also cause the coal sample container 100 to shake, so that the residual coal slag in the coal sample container 100 can fall more smoothly. The eccentric rotation of the locking disc 11 and the cleaning brush 21 can improve the cleaning efficiency, thereby completely cleaning the coal sample container 100.

[0047] Optionally, see Figure 4The locking disc 11 has an installation cavity. The locking assembly 12 includes a first limiting rod 121 and a second limiting rod 122. One end of the first limiting rod 121 is radially movably disposed in the installation cavity, and the other end extends into the through hole 111. The second limiting rod 122 is disposed at the end of the first limiting rod 121 that extends into the through hole 111. The edge of the container opening of the coal sample container 100 can be limited and abutted against the first limiting rod 121. By moving the first limiting rod 121, the second limiting rod 122 can be limited and abutted against the side wall of the coal sample container 100 to lock the coal sample container 100 to the locking disc 11. Specifically, when installing the coal sample container 100, firstly, according to the diameter of the coal sample container 100, multiple first limiting rods 121 are driven to move to a suitable position, and the coal sample container 100 is placed with its opening facing downwards on the multiple first limiting rods 121, so that the multiple first limiting rods 121 jointly support the coal sample container 100; then, the multiple first limiting rods 121 are driven to move radially again until the multiple second limiting rods 122 are limited to abutting against the side wall of the coal sample container 100, thereby stably limiting the coal sample container 100 on the locking disc 11. In this embodiment, the second limiting rods 122 extend into the coal sample container 100, that is, the second limiting rods 122 are limited to abutting against the inner side wall of the coal sample container 100. In other embodiments, the second limiting rods 122 may not extend into the coal sample container 100, but abutting against the outer side wall of the coal sample container 100 can also limit the coal sample container 100 on the locking disc 11.

[0048] In the current embodiment, the first limiting rod 121 and the second limiting rod 122 are arranged vertically. Preferably, the side of the second limiting rod 122 facing the coal sample container 100 is arc-shaped to more stably limit and abut against the side wall of the coal sample container 100. Furthermore, an elastic element is provided on the side of the second limiting rod 122 facing the coal sample container 100, allowing the second limiting rod 122 to elastically contact the coal sample container 100 through the elastic element, thereby effectively protecting the coal sample container 100 and preventing scratches. Optionally, the elastic element is made of rubber material, which has high elasticity and good protective effect, and can also increase the friction between the second limiting rod 122 and the coal sample container 100, further improving the stability of the limiting of the coal sample container 100 and the locking disc 11.

[0049] Optionally, the side wall of the locking disc 11 is provided with a plurality of openings communicating with the mounting cavity. The openings are provided one-to-one with the locking components 12. The first limiting rod 121 extends into the through hole 111 through the opening, thereby providing a guiding effect for the movement of the first limiting rod 121 and ensuring that the first limiting rod 121 can stably extend or retract into the mounting cavity.

[0050] Optionally, see Figure 5The locking mechanism 1 also includes a locking drive component 13 and a connecting rod structure. The locking drive component 13 is rotatably mounted on the locking disc 11. The output end of the locking drive component 13 is rotatably connected to the connecting rod structure. The end of the first limiting rod 121 away from the second limiting rod 122 is rotatably connected to the connecting rod structure. The locking drive component 13 can drive multiple first limiting rods 121 to move synchronously through the connecting rod structure. The locking drive component 13 and the connecting rod structure can connect multiple locking components 12 together, so that multiple first limiting rods 121 can be driven to move synchronously by one locking drive component 13, thereby causing multiple second limiting rods 122 to simultaneously abut against the side wall of the coal sample container 100 to lock the coal sample container 100, thus saving costs.

[0051] Furthermore, the linkage structure includes a first linkage 14 and multiple second linkages 15. The first linkage 14 is annular and rotatably disposed within the mounting cavity along its own axis. The second linkages 15 are correspondingly disposed one-to-one with the locking assembly 12. One end of the second linkage 15 is rotatably connected to the first linkage 14, and the other end is rotatably connected to the first limiting rod 121. The output end of the locking drive 13 is rotatably connected to the first linkage 14 to drive the first linkage 14 to rotate around its own axis. Activating the locking drive 13 can drive the first linkage 14 to rotate, thereby driving the multiple second linkages 15 connected thereto to rotate, which in turn drives the first limiting rods 121 connected to the second linkages 15 to extend or retract through the opening in the mounting cavity. This allows the multiple second limiting rods 122 to abut against the side wall of the coal sample container 100, thereby locking the coal sample container 100 onto the locking disc 11. Optionally, a connecting seat 112 is provided on the locking disc 11, and the locking drive component 13 is rotatably mounted on the connecting seat 112 to avoid interference with the locking disc 11 when driving the first connecting rod 14 to rotate. Further, the locking drive component 13 may include, but is not limited to, a cylinder, an electric cylinder, etc.

[0052] Optionally, multiple support rollers 141 are circumferentially spaced on both sides of the first connecting rod 14. The support rollers 141 can roll into contact with the inner wall of the mounting cavity, thereby providing support for the first connecting rod 14.

[0053] Optionally, the locking mechanism 1 further includes a guide assembly. The guide assembly is disposed in the mounting cavity and has multiple members spaced apart along the circumference of the first connecting rod 14. The guide assembly includes two spaced guide wheels 16. The two guide wheels 16 together clamp the first connecting rod 14. When the first connecting rod 14 rotates, the first connecting rod 14 can roll into contact with the guide wheels 16, thereby providing guidance for the rotation of the first connecting rod 14 and ensuring the stability of the first connecting rod 14 during rotation.

[0054] Optionally, see Figure 3 , Figure 6 and Figure 7It also includes a mounting frame 3 and a drive assembly 4 mounted on the mounting frame 3. The drive assembly 4 includes a rotary drive member 41, a drive rod 42, and multiple third connecting rods 43. One end of the drive rod 42 is connected to the output end of the rotary drive member 41, and the other end is rotatably connected to the locking disc 11. Multiple third connecting rods 43 are spaced apart along the circumference of the locking disc 11. One end of the third connecting rod 43 is rotatably connected to the locking disc 11, and the other end is rotatably connected to the mounting frame 3. The rotary drive member 41 can drive the drive rod 42 to rotate, thereby driving the locking disc 11 to rotate. The mounting frame 3 serves as the mounting base. The locking mechanism 1 and the cleaning mechanism 2 are both mounted on the mounting frame 3. The mounting frame 3 includes a first mounting plate 31 and a second mounting plate 32 spaced apart vertically, and a frame connecting the first mounting plate 31 and the second mounting plate 32. Specifically, the locking mechanism 1 is mounted on the first mounting plate 31 of the mounting bracket 3. The first mounting plate 31 has a first clearance hole 311, through which the cleaning brush 21 can extend into the coal sample container 100, thereby avoiding interference with the first mounting plate 31. The rotary drive 41 can drive the drive rod 42 to rotate, and the locking disc 11 is rotatably connected to the mounting bracket 3 via the third connecting rod 43. Activating the rotary drive 41 can drive the locking disc 11 to rotate eccentrically. Optionally, the rotary drive 41 is a motor. In other embodiments, the eccentric rotation of the locking disc 11 can also be achieved by using an eccentric shaft, cam, or other means.

[0055] Optionally, see Figure 4 , Figure 8 and Figure 9 The cleaning mechanism 2 also includes a cleaning drive component 22, a lifting drive component 23, and a connecting frame 24. The cleaning drive component 22 is mounted on the connecting frame 24 and its output end is connected to the cleaning brush 21 to drive the cleaning brush 21 to rotate. The lifting drive component 23 is mounted on the mounting frame 3 and its output end is connected to the connecting frame 24 to drive the cleaning brush 21 to rise and fall. After the coal sample container 100 is locked onto the locking disc 11, the lifting drive component 23 is first driven to allow the cleaning brush 21 to extend into the coal sample container 100. Then, the cleaning drive component 22 is activated to drive the cleaning brush 21 to rotate, thereby cleaning the inside of the coal sample container 100, which is convenient to use. Specifically, the lifting drive component 23 is mounted on the second mounting plate 32 of the mounting frame 3. Optionally, the lifting drive component 23 may include, but is not limited to, an electric cylinder or a pneumatic cylinder, and the cleaning drive component 22 may be a rotary motor.

[0056] Optionally, the cleaning brush 21 includes a mounting cylinder 211 and bristles 212 disposed on the mounting cylinder 211. A drive shaft is connected to the output end of the cleaning drive component 22, and the end of the drive shaft away from the cleaning drive component 22 is connected to the mounting cylinder 211, thereby driving the cleaning brush 21 to rotate. Further, bristles 212 are disposed on the side wall and top of the mounting cylinder 211. Even further, an air hole 213 is disposed on the mounting cylinder 211, and the exhaust end of the blower mechanism communicates with the mounting cylinder 211. When the blower mechanism is activated, hot air can be blown into the coal sample container 100 through the air hole 213 on the mounting cylinder 211. Optionally, the blower mechanism is a fan. In this embodiment, a connecting joint 241 communicating with the inner cavity of the mounting cylinder 211 is disposed on the connecting frame 24, and the blower mechanism communicates with the inner cavity of the mounting cylinder 211 through the connecting joint 241.

[0057] Optionally, it also includes a sewage discharge channel 5, which is connected to the through hole 111 and connected to an external recycling device at the other end. The sewage discharge channel 5 is covered by the cleaning brush 21, allowing debris in the coal sample container 100 to be discharged to the recycling device through the sewage discharge channel 5. The sewage discharge channel 5 is covered by the cleaning brush 21 to prevent residual coal slag in the coal sample container 100 from splashing. The residual coal slag is discharged to the recycling device through the sewage discharge channel 5, thereby protecting the environment. Specifically, a second clearance hole is provided on the connecting frame 24, through which the sewage discharge channel 5 passes through the connecting frame 24 to avoid interference with the connecting frame 24. Optionally, a cloth bag is used for the sewage discharge channel 5, as cloth is readily available and inexpensive. Specifically, one end of the cloth bag is connected to the first mounting plate 31 and opposite to the first clearance hole 311, and the other end is connected to the second mounting plate 32. The second mounting plate 32 is provided with a third clearance hole that communicates with the sewage discharge channel 5, through which the sewage discharge channel 5 connects to the recycling device.

[0058] Optionally, the system also includes a controller. The locking mechanism 1, the cleaning mechanism 2, and the blower mechanism are all electrically connected to the controller. The controller can send signals to the locking mechanism 1, the cleaning mechanism 2, and the blower mechanism to achieve automated cleaning of the coal sample container 100. In this embodiment, a PLC controller is selected as the controller.

[0059] Optionally, a first detection element 6 is also included. The first detection element 6 is disposed on the locking plate 11 and is used to detect whether a coal sample container 100 is placed on the locking plate 11. Further, the first detection element 6 is electrically connected to the controller and fixed to the locking plate 11 by the first fixing plate 113. The first detection element 6 can detect whether a coal sample container 100 is placed on the locking plate 11 in real time and send the detection result to the controller. If a coal sample container 100 is detected on the locking plate 11, the controller drives the locking drive element 13 to lock the coal sample container 100 on the locking plate 11. Then, the controller sends a signal to the cleaning mechanism 2 to clean the coal sample container 100. Optionally, the first detection element 6 includes, but is not limited to, a proximity switch, a micro switch, a limit switch, a photoelectric switch, a diffuse reflection sensor, etc.

[0060] It is understandable that, since the locking drive component 13 is connected to the locking structure via a linkage structure, the extension and retraction distance of the output end of the locking drive component 13 can be converted into the movement distance of the first limiting rod 121. Therefore, by controlling the extension distance of the locking drive component 13, the second limiting rod 122 can be made to abut against coal sample containers 100 of different diameters, thereby locking the coal sample containers 100. Based on this, multiple limiting switches are spaced along the extension and retraction path of the output end of the locking drive component 13. Each limiting switch corresponds to a coal sample container 100 of a certain diameter, thereby limiting the extension length of the locking drive component 13 to lock coal sample containers 100 of different diameters. The number and specific position of the limiting switches are determined according to the diameter of the coal sample container 100 to be locked. For example, in this embodiment, two limiting switches are provided to lock coal sample containers 100 with diameters of 300mm and 400mm, respectively. Furthermore, an identifier electrically connected to the controller is also provided. A specification label is provided on the coal sample container 100. The identifier can identify the specification label to determine the diameter and depth of the coal sample container 100. Optionally, the identifier is a camera.

[0061] In other embodiments, a measuring element is provided on the side of the second limiting rod 122 facing the coal sample container 100. The measuring element is electrically connected to the controller to measure the pressure between the coal sample container 100 and the second limiting rod 122. When the pressure between the coal sample container 100 and the second limiting rod 122 reaches a preset value, it indicates that the coal sample container 100 is locked. Optionally, the measuring element is a pressure sensor.

[0062] Similarly, multiple limit switches are set on the lifting path of the cleaning brush 21. Different limit switches correspond to coal sample containers 100 at different depths. The controller can control the output end of the lifting drive component 23 to extend or retract to the corresponding limit switch position according to the depth of the coal sample container 100, thereby limiting the lifting stroke of the cleaning brush 21 and preventing the cleaning brush 21 from rising too much and damaging the bristles 212 at its top.

[0063] Further, see Figure 7 The system also includes a second detection element 7, which is electrically connected to the controller. The second detection element 7 is used to detect the rotational speed of the locking disc 11. Specifically, the second detection element 7 detects the rotational speed of the locking disc 11 in real time and feeds it back to the controller. The controller calculates the relative rotational speed between the locking disc 11 and the cleaning brush 21 based on the rotational speeds of the locking disc 11 and the cleaning brush 21 (the rotational speed of the cleaning brush 21 is determined based on the rotational speed of the cleaning drive component 22), thereby determining whether the cleaning frequency meets the cleaning requirements. Specifically, if the relative rotational speed is not equal to 0, it means that the cleaning frequency meets the cleaning requirements. Optionally, the second detection element 7 is a speed sensor.

[0064] This embodiment also provides a method for cleaning a coal sample container, using the aforementioned coal sample container cleaning device, including the following steps:

[0065] S1. The coal sample container 100 is locked to the locking plate 11 by the locking assembly 12, so that the inner cavity of the coal sample container 100 is opposite to the through hole 111 of the locking plate 11;

[0066] S2. Drive the cleaning brush 21 to rise and extend into the inner cavity of the coal sample container 100 until the cleaning brush 21 abuts against the bottom wall of the coal sample container 100.

[0067] S3. Drive the locking disc 11 and cleaning brush 21 to rotate, and drive the blower mechanism to blow hot air into the inner cavity of the coal sample container 100 to clean the coal sample container 100.

[0068] Specifically, step S1 includes:

[0069] S11. Place the coal sample container 100 with its opening facing down on multiple first limiting rods 121, and insert the second limiting rod 122 into the coal sample container 100. The first detection element 6 detects in real time whether a coal sample container 100 is placed on the locking plate 11. If so, the identifier identifies the specifications of the coal sample container 100 to determine the diameter and depth of the coal sample container 100.

[0070] S12, the controller sends a signal to the locking drive 13. When the output end of the locking drive 13 extends and retracts to the corresponding limit switch, it stops extending and retracting, so that the second limit rod 122 is in limit contact with the inner wall of the coal sample container 100, thereby locking the coal sample container 100 on the locking plate 11.

[0071] In step S2, the controller sends a signal to the lifting drive 23 to drive the cleaning brush 21 to rise until the output end of the lifting drive 23 extends to the limit switch position at the corresponding depth. At this time, the cleaning brush 21 stops rising and the bristles 212 at the top of the cleaning brush 21 abut against the bottom wall of the coal sample container 100.

[0072] In step S3, the rotary drive 41 is activated to drive the locking disc 11 to rotate eccentrically, and the cleaning drive 22 is activated to drive the cleaning brush 21 to rotate. At the same time, the air outlet mechanism is activated so that the hot air generated by the blower mechanism is blown into the coal sample container 100 through the air hole 213 on the mounting cylinder 211, thereby cleaning the coal sample container 100. During the cleaning process, the second detection element 7 detects the rotation speed of the locking disc 11 in real time and feeds it back to the controller to determine whether the cleaning frequency meets the cleaning requirements, so as to adjust the rotation speed of the locking disc 11 and the cleaning brush 21 in a timely manner.

[0073] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A coal sample container cleaning device, characterized in that, include: The locking mechanism (1) includes a locking disc (11) and multiple locking components (12). The locking disc (11) is rotatable, and the rotation axis of the locking disc (11) does not coincide with its own axis. The locking disc (11) is provided with a through hole (111) along the axial direction. Multiple locking components (12) are arranged circumferentially on the locking disc (11). Coal sample containers (100) of different diameters can be locked to the locking disc (11) through the locking components (12) so that the inner cavity of the coal sample container (100) is opposite to the through hole (111). The cleaning mechanism (2) includes a liftable cleaning brush (21), which can rotate around its own axis. The rotation axis of the locking disc (11) coincides with the axis of the cleaning brush (21). The cleaning brush (21) is located below the locking disc (11). The cleaning brush (21) can extend into the coal sample container (100) through the through hole (111) to clean the coal sample container (100). A blower mechanism, which is connected to the inner cavity of the coal sample container (100) to blow hot air into the coal sample container (100); The coal sample container cleaning device further includes a mounting frame (3) and a drive assembly (4) disposed on the mounting frame (3). The drive assembly (4) includes a rotary drive (41), a drive rod (42) and a plurality of third connecting rods (43). One end of the drive rod (42) is connected to the output end of the rotary drive (41), and the other end is rotatably connected to the locking disc (11). A plurality of third connecting rods (43) are arranged at intervals along the circumference of the locking disc (11). One end of the third connecting rod (43) is rotatably connected to the locking disc (11), and the other end is rotatably connected to the mounting frame (3). The rotary drive (41) can drive the drive rod (42) to rotate so as to drive the locking disc (11) to rotate.

2. The coal sample container cleaning device according to claim 1, characterized in that, The locking disc (11) is provided with an installation cavity. The locking assembly (12) includes a first limiting rod (121) and a second limiting rod (122). One end of the first limiting rod (121) is radially movably disposed in the installation cavity, and the other end extends into the through hole (111). The second limiting rod (122) is disposed at the end of the first limiting rod (121) that extends into the through hole (111). The edge of the container opening of the coal sample container (100) can be limited and abutted against the first limiting rod (121). By moving the first limiting rod (121), the second limiting rod (122) can be limited and abutted against the side wall of the coal sample container (100) to lock the coal sample container (100) to the locking disc (11).

3. The coal sample container cleaning device according to claim 2, characterized in that, The locking mechanism (1) further includes a locking drive (13) and a linkage structure. The locking drive (13) is rotatably disposed on the locking disc (11). The output end of the locking drive (13) is rotatably connected to the linkage structure. The end of the first limiting rod (121) away from the second limiting rod (122) is rotatably connected to the linkage structure. The locking drive (13) can drive multiple first limiting rods (121) to move synchronously through the linkage structure.

4. The coal sample container cleaning device according to claim 3, characterized in that, The linkage structure includes a first linkage (14) and a plurality of second linkages (15). The first linkage (14) is annular and is rotatably disposed in the mounting cavity along its own axis. The second linkages (15) are arranged one-to-one with the locking assembly (12). One end of the second linkage (15) is rotatably connected to the first linkage (14), and the other end is rotatably connected to the first limiting rod (121). The output end of the locking drive (13) is rotatably connected to the first linkage (14) to drive the first linkage (14) to rotate around its own axis.

5. The coal sample container cleaning device according to claim 2, characterized in that, The side wall of the locking disc (11) is provided with a plurality of openings communicating with the mounting cavity. The openings are provided one-to-one with the locking assembly (12). The first limiting rod (121) extends into the through hole (111) through the opening.

6. The coal sample container cleaning device according to claim 1, characterized in that, The cleaning mechanism (2) further includes a cleaning drive (22), a lifting drive (23) and a connecting frame (24). The cleaning drive (22) is disposed on the connecting frame (24) and its output end is connected to the cleaning brush (21) to drive the cleaning brush (21) to rotate. The lifting drive (23) is disposed on the mounting frame (3) and its output end is connected to the connecting frame (24) to drive the cleaning brush (21) to rise and fall.

7. The coal sample container cleaning device according to any one of claims 1-6, characterized in that, It also includes a first detection element (6), which is disposed on the locking plate (11) and is used to detect whether a coal sample container (100) is placed on the locking plate (11).

8. The coal sample container cleaning device according to any one of claims 1-6, characterized in that, It also includes a sewage discharge channel (5), which is connected to the through hole (111) and the other end is connected to an external recycling device. The sewage discharge channel (5) is covered outside the cleaning brush (21), and the debris in the coal sample container (100) can be discharged to the recycling device through the sewage discharge channel (5).

9. A method for cleaning coal sample containers, characterized in that, The application of the coal sample container cleaning device as described in any one of claims 1-8 includes the following steps: S1. The coal sample container (100) is locked to the locking disc (11) by the locking assembly (12) so that the inner cavity of the coal sample container (100) is opposite to the through hole (111) of the locking disc (11); S2. Drive the cleaning brush (21) to rise and extend into the inner cavity of the coal sample container (100) until the cleaning brush (21) abuts against the bottom wall of the coal sample container (100); S3. Drive the locking disc (11) and the cleaning brush (21) to rotate, and drive the blower to blow hot air into the inner cavity of the coal sample container (100) to clean the coal sample container (100).

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