Dust removal device of coal sampling machine

Abstract

The utility model relates to a coal sampling machine dust removal device which comprises a box body assembly, a cleaning brush and a dust collection assembly, the box body assembly comprises a box body and a cover body, a mounting cavity opened upwards is formed in the box body and used for mounting a coal sampling machine body, and the cover body is located at the top of the box body and used for covering or exposing the open end of the mounting cavity; the cleaning brush is located in the mounting cavity and comprises a brush handle and bristles fixed to the brush handle, the brush handle is rotatably connected to the cover body, and the bristles are used for making contact with the inner surface of the cover body. The dust collection assembly comprises a dust collection structure and a dust collection pipeline, and the dust collection pipeline can at least partially stretch into the cover body so as to suck dust on the cover body under the suction effect of the dust collection structure. After coal sampling is completed, coal dust and the like attached to the inner surface of the cover body can be cleaned through the cleaning brush, and the coal dust and the like swept down by the cleaning brush are sucked through the dust suction assembly, so that fine particle substances such as the coal dust and the like attached to the inner surface of the cover body of the coal sampling machine are cleaned.

Description

Technical Field

[0001] The present disclosure relates to the technical field of coal production and manufacturing, and specifically, to a dust removal device for a coal sample preparation machine. Background Art

[0002] Coal sample preparation refers to the process of extracting samples from coal for chemical analysis. Coal sample preparation usually includes steps such as coal sample collection, crushing, mixing, and sub-sampling to ensure that the samples extracted from the original coal are representative and can accurately reflect the properties and components of the coal. Coal sample preparation is an important link in coal quality evaluation and utilization and has an important impact on the analysis and test results of coal.

[0003] During the process of coal sample preparation, a certain amount of coal dust will be generated. Especially during the crushing and mixing of coal, a large amount of fine particulate matter will adhere to the inner surface of the cover of the coal sample preparation machine and is likely to gush out instantly when the cover is opened, which is likely to pollute the experimental environment and damage the physical health of the operators. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a dust removal device for a coal sample preparation machine to solve the problems existing in the related art.

[0005] To achieve the above purpose, the present disclosure provides a dust removal device for a coal sample preparation machine, including:

[0006] A box body assembly, the box body assembly includes a box body and a cover body. The box body has an upwardly open installation cavity for installing the main body of the coal sample preparation machine. The cover body is located at the top of the box body and is used to cover or expose the open end of the installation cavity;

[0007] A cleaning brush, located in the installation cavity. The cleaning brush includes a brush handle and bristles fixed to the brush handle. The brush handle is rotatably connected to the cover body, and the bristles are used to contact the inner surface of the cover body;

[0008] A dust suction assembly, including a dust suction structure and a dust suction pipe. The dust suction pipe can at least partially extend into the cover body to suck the dust on the cover body under the suction action of the dust suction structure.

[0009] Optionally, the dust suction pipe includes a first dust suction pipeline and a second dust suction pipeline that can rotate relative to the first dust suction pipeline;

[0010] The first dust suction pipeline is connected to the brush handle, and a dust suction port is provided on the brush handle. The inlet of the first dust suction pipeline is communicated with the dust suction port.

[0011] Optionally, the first dust suction pipeline and the second dust suction pipeline are connected by a rotary joint.

[0012] Optionally, the dust suction structure comprises a cavity, a piston and a filter, a dust suction cavity is formed in the cavity, the piston is movably disposed in the dust suction cavity, and a side wall of the piston abuts against the dust suction cavity;

[0013] The cavity is provided with an inlet and an outlet, and the inlet and the outlet are both located at an end of the cavity away from the piston;

[0014] The second dust suction pipeline comprises a first dust suction section and a second dust suction section, one end of the first dust suction section is connected to the first dust suction pipeline, the other end of the first dust suction section is connected to the inlet, and the second dust suction section is connected to the outlet;

[0015] The filter plate is used to be arranged in the dust suction chamber, the piston is located on one side of the filter plate, and the inlet and the outlet are located on the other side of the filter plate.

[0016] Optionally, the coal sampling machine dust removal device also includes a driving member and a transmission structure, and the transmission structure is constructed to be able to transmit and connect the piston and the first dust suction pipeline to the driving member, so that the driving member can drive the first dust suction pipeline to rotate and drive the piston to reciprocate in the dust suction chamber.

[0017] Optionally, the transmission structure includes a transmission shaft, a first transmission member, a second transmission member and a rotating member, the driving member is transmission-connected to the transmission shaft, the first transmission member is sleeved on the transmission shaft, the second transmission member and the rotating member are sleeved on the first dust suction pipeline, and the second transmission member is transmission-connected to the first transmission member;

[0018] The dust suction structure includes a connecting plate and a connecting rod, one end of the connecting rod is connected to the piston, and the other end of the connecting rod is connected to the connecting plate. The contour of the contact portion between the rotating member and the connecting plate is constructed so that the connecting plate can move toward or away from the cavity during the rotation of the rotating member.

[0019] Optionally, the rotating member is formed as a cam, the first transmission member is formed as a first pulley, the second transmission member is formed as a second pulley, and the first pulley is connected to the second pulley via a transmission belt;

[0020] The dust suction structure also includes an elastic member, which is sleeved on the connecting rod, one end of the elastic member abuts against the connecting plate, and the other end of the elastic member abuts against the cavity.

[0021] Optionally, the dust removal device of the coal sample preparation machine further includes a mounting frame for mounting on the side of the cover away from the box body. An accommodation cavity is formed between the mounting frame and the cover body. Both the transmission structure and the dust suction structure are mounted in the accommodation cavity, and the driving member is mounted on the side of the mounting frame away from the accommodation cavity.

[0022] Optionally, the dust suction assembly further includes a dust storage bucket for being arranged outside the box body, and the dust storage bucket is connected to the second dust suction section.

[0023] Optionally, the dust storage bucket includes a bucket cover and a bucket body. A dust suction hole is formed in the bucket cover, and one end of the second dust suction section away from the outlet is connected to the dust suction hole;

[0024] A mounting plate is arranged on one side of the box body, and the bucket cover is mounted on the mounting plate.

[0025] Through the above technical solution, since the brush handle of the cleaning brush is rotatably connected to the cover body, the bristles of the cleaning brush can contact the inner surface of the cover body, and the dust suction pipe can at least partially extend into the cover body, and the dust on the cover body can be sucked through the dust suction structure. In this way, after the coal sample preparation is completed, the operator can use the cleaning brush to clean the fine particulate matters such as coal dust attached to the inner surface of the cover body, and the dust suction assembly can suck the fine particulate matters such as coal dust swept by the cleaning brush, so as to realize the cleaning of the fine particulate matters such as coal dust attached to the inner surface of the cover body of the coal sample preparation machine. Then, the cover body is opened to take out the coal sample, effectively avoiding the situation that a large amount of fine particulate matters such as coal dust are attached to the inner surface of the cover body of the coal sample preparation machine during the coal sample preparation process, which is likely to spout out instantly when the cover plate is opened, polluting the experimental environment and damaging the health of the operator.

[0026] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and are used to explain the present disclosure together with the following specific implementation manners, but do not constitute a limitation to the present disclosure. In the drawings:

[0028] Figure 1 FIG. is a schematic perspective view of a dust removal device of a coal sample preparation machine provided by an exemplary embodiment of the present disclosure, wherein the cover body is in a closed state.

[0029] Figure 2 FIG. is a schematic perspective view of a dust removal device of a coal sample preparation machine provided by an exemplary embodiment of the present disclosure, wherein the cover body is in an open state.

[0030] Figure 3 FIG. Figure 3 is a partial cross-sectional schematic view of a dust removal device for a coal sample preparation machine provided by an exemplary embodiment of the present disclosure, in which a dust suction assembly and a transmission structure installed in a mounting frame are shown.

[0031] Figure 4 is Figure 3 an enlarged schematic view of A in

[0032] Figure 5 FIG. is a three-dimensional structural schematic view of a cleaning brush provided by an exemplary embodiment of the present disclosure, in which a first dust suction pipeline, a rotary joint, and a rotating member are shown.

[0033] Figure 6 FIG.

[0032] is a three-dimensional structural schematic view of a dust suction structure provided by an exemplary embodiment of the present disclosure.

[0034] Description of Reference Numerals

[0035] 1 - housing assembly; 11 - housing; 111 - installation cavity; 121 - mounting plate; 12 - cover; 2 - cleaning brush; 21 - brush handle; 211 - dust suction port; 22 - bristles; 3 - dust suction assembly; 31 - dust suction structure; 311 - cavity; 3111 - dust suction cavity; 3112 - inlet; 3113 - outlet; 312 - piston; 313 - filter sheet; 314 - connecting plate; 315 - connecting rod; 316 - elastic member; 32 - dust suction pipeline; 321 - first dust suction pipeline; 322 - second dust suction pipeline; 3221 - first dust suction section; 3222 - second dust suction section; 4 - main body of coal sample preparation machine; 5 - rotary joint; 6 - driving member; 7 - transmission structure; 71 - transmission shaft; 72 - first transmission member; 721 - first pulley; 73 - second transmission member; 731 - second pulley; 74 - rotating member; 741 - cam; 75 - transmission belt; 8 - mounting frame; 81 - accommodation cavity; 9 - dust storage bucket; 91 - bucket cover; 92 - bucket body. Detailed Embodiments

[0036] The following describes in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0037] In the present disclosure, unless otherwise stated, the orientation terms such as "upper", "lower", "left", "right", etc. indicate the orientation or position relationship defined based on the drawing direction shown in the corresponding drawings, and are only for facilitating the description of the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present disclosure. The terms "inside and outside" refer to the inside and outside of the corresponding structural contour.

[0038] In addition, it should be noted that terms such as "first" and "second" are used to distinguish one element from another, and do not have an order or importance. In addition, in the description with reference to the accompanying drawings, the same reference numerals in different drawings represent the same elements.

[0039] In the description of the present disclosure, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", "coupled", and "installed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0040] As Figures 1 to 6 shown, the present disclosure provides a dust removal device for a coal sample preparation machine, including a box body assembly 1, a cleaning brush 2, and a dust suction assembly 3. The box body assembly 1 includes a box body 11 and a cover body 12. An upwardly open installation cavity 111 is provided in the box body 11 for installing the main body 4 of the coal sample preparation machine. The cover body 12 is located at the top of the box body 11 and is used to cover or expose the open end of the installation cavity 111. The cleaning brush 2 is located in the installation cavity 111 and includes a brush handle 21 and bristles 22 fixed to the brush handle 21. The brush handle 21 is rotatably connected to the cover body 12, and the bristles 22 are used to contact the inner surface of the cover body 12. The dust suction assembly 3 includes a dust suction structure 31 and a dust suction pipe 32. The dust suction pipe 32 can at least partially extend into the cover body 12 to suck the dust on the cover body 12 under the suction action of the dust suction structure 31.

[0041] In the above dust removal device for a coal sample preparation machine, since the box body assembly 1 includes the box body 11 and the cover body 12, and an installation cavity 111 for installing the main body 4 of the coal sample preparation machine is provided in the box body assembly 1, in this way, during the coal sample preparation process, the operator can close the cover body 12, and the coal dust generated during the coal sample preparation process will not spout into the external environment.

[0042] Through the above technical solution, since the brush handle 21 of the cleaning brush 2 is rotatably connected to the cover body 12, the bristles 22 of the cleaning brush 2 can contact the inner surface of the cover body 12, and the dust suction pipeline 32 can at least partially extend into the cover body 12, and the dust on the cover body 12 is sucked through the dust suction structure 31. In this way, after the coal sample preparation machine finishes sample preparation, the operator can use the cleaning brush 2 to clean fine particulate matters such as coal dust adhering to the inner surface of the cover body 12, and the dust suction assembly 3 sucks the fine particulate matters such as coal dust swept down by the cleaning brush 2, so as to realize the cleaning of the fine particulate matters such as coal dust adhering to the inner surface of the cover body 12 of the coal sample preparation machine. Then, the cover body 12 is opened to take out the coal sample, effectively avoiding the situation that a large amount of fine particulate matters such as coal dust are generated during the coal sample preparation process and adhere to the inner surface of the cover body 12 of the coal sample preparation machine, which is likely to gush out instantly when the cover plate is opened, easily polluting the experimental environment and damaging the health of the operator.

[0043] The present disclosure does not limit the specific implementation manner of the dust suction pipeline, as long as the dust suction pipeline can meet the suction requirements for fine particulate matters such as coal dust on the inner surface of the cover body 12. As an implementation manner of the present disclosure, optionally, as Figure 3 and Figure 4 shown, the dust suction pipeline 32 includes a first dust suction pipeline 321 and a second dust suction pipeline 322 that can rotate relative to the first dust suction pipeline 321. The first dust suction pipeline 321 is connected to the brush handle 21, and a dust suction port 211 is provided on the brush handle 21. The inlet of the first dust suction pipeline 321 is communicated with the dust suction port 211. In other words, the first dust suction pipeline 321 is directly connected to the brush handle 21 and can rotate with the rotation of the brush handle 21. The dust suction effect of the first dust suction pipeline 321 is good, effectively avoiding the situation that the distance between the cleaning brush 2 and the first dust suction pipeline 321 is relatively far, and the first dust suction pipeline 321 cannot suck some fine particulate matters such as coal dust.

[0044] In addition, since the second dust suction pipeline 322 can rotate relative to the first dust suction pipeline 321, that is, when the first dust suction pipeline 321 rotates, the second dust suction pipeline 322 can remain stationary, and the second dust suction pipeline 322 does not need to rotate with the rotation of the first dust suction pipeline 321, effectively avoiding the situation that the rotation of the second dust suction pipeline 322 is likely to interfere with other components of the dust removal device of the coal sample preparation machine.

[0045] The present disclosure does not limit the specific connection manner between the first dust suction pipeline 321 and the second dust suction pipeline 322, as long as the second dust suction pipeline 322 can rotate relative to the first dust suction pipeline 321. As an implementation manner of the present disclosure, optionally, as Figure 4 and Figure 5As shown, the first dust suction pipeline 321 and the second dust suction pipeline 322 are connected by a rotary joint 5. The rotary joint 5 can not only rotatably connect the first dust suction pipeline 321 and the second dust suction pipeline 322, so that the second dust suction pipeline 322 can rotate relative to the first dust suction pipeline 321, but also seal the connection between the first dust suction pipeline 321 and the second dust suction pipeline 322, effectively preventing fine particulate matter such as coal dust from overflowing from the connection between the first dust suction pipeline 321 and the second dust suction pipeline 322, and avoiding the situation of polluting the experimental environment and / or damaging the physical health of the operators.

[0046] As another embodiment, the first dust suction pipeline 321 and the second dust suction pipeline 322 can also be connected by a sliding joint or the like.

[0047] The present disclosure does not limit the specific composition of the dust suction structure 31, as long as the dust suction structure 31 can suck fine particulate matter such as coal dust on the inner surface of the cover body 12 through the dust suction pipeline 32. As an embodiment of the present disclosure, as Figure 3 and Figure 4 shown, the dust suction structure 31 includes a cavity 311, a piston 312 and a filter sheet 313. A dust suction cavity 3111 is formed in the cavity 311. The piston 312 is movably arranged in the dust suction cavity 3111, and the side wall of the piston 312 abuts against the dust suction cavity 3111. An inlet 3112 and an outlet 3113 are formed on the cavity 311. Both the inlet 3112 and the outlet 3113 are located at one end of the cavity 311 away from the piston 312. The second dust suction pipeline 322 includes a first dust suction section 3221 and a second dust suction section 3222. One end of the first dust suction section 3221 is connected to the first dust suction pipeline 321, and the other end of the first dust suction section 3221 is connected to the inlet 3112. The second dust suction section 3222 is connected to the outlet 3113. The filter sheet 313 is used to be arranged in the dust suction cavity 3111. The piston 312 is located on one side of the filter sheet 313, and the inlet 3112 and the outlet 3113 are located on the other side of the filter sheet 313.

[0048] Since the cavity 311 is formed with an inlet 3112, an outlet 3113 and a dust suction cavity 3111, and the piston 312 is movably disposed in the dust suction cavity 3111, in other words, the dust suction structure 31 can be formed as a piston 312-cylinder structure, when the piston 312 moves in the dust suction cavity 3111 in a direction away from the inlet 3112 and the outlet 3113, the dust suction cavity 3111 can generate negative pressure, and the dust suction cavity 3111 can generate negative pressure through the first dust suction pipeline 321 and the first dust suction section 32 21 sucks away fine particulate matter such as coal dust from the inner side of the cover body 12. When the piston 312 moves in the dust suction chamber 3111 toward the direction close to the inlet 3112 and the outlet 3113, the dust suction chamber 3111 can generate positive pressure and discharge fine particulate matter such as coal dust from the outlet 3113 of the chamber 311 through the second dust suction pipeline 322, thereby achieving the absorption and cleaning of fine particulate matter such as coal dust attached to the inner surface of the coal sampling machine cover body 12.

[0049] In addition, since the filter 313 is used to be set in the dust suction chamber 3111, and the piston 312 is located on one side of the filter 313, the inlet 3112 and the outlet 3113 are located on the other side of the filter 313, in other words, fine particulate matter such as coal dust entering the chamber 311 can be blocked by the filter 313, and the fine particulate matter such as coal dust entering the chamber 311 will not come into contact with the piston 312, which effectively prevents the fine particulate matter such as coal dust entering the chamber 311 from entering the piston 312 and affecting the movement of the piston 312 in the dust suction chamber 311, and even causing the piston 312 to be unable to move, and the dust suction structure 31 is unable to absorb fine particulate matter such as coal dust, and the dust suction structure 31 has a longer service life.

[0050] In order to drive the brush handle 21 to rotate and drive the piston 312 of the dust suction structure 31 to move, optionally, as Figure 3 and Figure 6 As shown, the above-mentioned dust removal device for the coal sample preparation machine may also include a driving member 6 and a transmission structure 7. The transmission structure 7 is configured to be able to drive the piston 312 and the first dust suction pipeline 321 to the driving member 6, so that the driving member 6 can drive the first dust suction pipeline 321 to rotate and can drive the piston 312 to reciprocate in the dust suction chamber 3111. In other words, only one driving member 6 is required to be provided on the dust removal device, so that the first dust suction pipeline 321 can be driven to rotate through the transmission structure 7, thereby driving the brush handle 21 to rotate on the inner surface of the cover body 12, and the piston 312 can be driven to reciprocate in the dust suction chamber 3111 at the same time, without the need to provide two driving members 6, which is conducive to reducing the cost of the dust removal device for the coal sample preparation machine.

[0051] The present disclosure does not limit the specific structure of the transmission structure 7. As an implementation method of the present disclosure, Figure 3 and Figure 4As shown, the transmission structure 7 includes a transmission shaft 71, a first transmission member 72, a second transmission member 73, and a rotating member 74. The driving member 6 is drivingly connected to the transmission shaft 71. The first transmission member 72 is sleeved on the transmission shaft 71. Both the second transmission member 73 and the rotating member 74 are sleeved on the first dust suction pipeline 321, and the second transmission member 73 is drivingly connected to the first transmission member 72. The dust suction structure 31 includes a connecting plate 314 and a connecting rod 315. One end of the connecting rod 315 is connected to the piston 312, and the other end of the connecting rod 315 is connected to the connecting plate 314. The contour of the contact portion between the rotating member 74 and the connecting plate 314 is configured to enable the connecting plate 314 to move along one side approaching or departing from the cavity 311 during the rotation of the rotating member 74.

[0052] In other words, when the driving member 6 rotates, the driving member 6 can drive the second transmission member 73 sleeved on the first dust suction pipeline 321 to rotate through the first transmission member 72, thereby driving the first dust suction pipeline 321, the rotating member 74 connected to the first dust suction pipeline 321, and the brush handle 21 to rotate. Since the contour of the contact portion between the rotating member 74 and the connecting plate 314 is configured to enable the connecting plate 314 to move along one side approaching or departing from the cavity 311 during the rotation of the rotating member 74, thus, when the rotating member 74 rotates with the first dust suction pipeline 321, the rotating member 74 can drive the connecting plate 314 to move along one side approaching or departing from the cavity 311 to drive the piston 312 to reciprocate, so as to realize the suction of fine particulate matters such as coal dust on the inner surface of the cover body 12 by the dust suction structure 31.

[0053] The present disclosure does not limit the specific structures of the rotating member 74, the first transmission member 72, and the second transmission member 73. As an implementation manner of the present disclosure, as Figures 3 to 5 shown, the rotating member 74 is formed as a cam 741, the first transmission member 72 is formed as a first belt pulley 721, the second transmission member 73 is formed as a second belt pulley 731, the first belt pulley 721 and the second belt pulley 731 are connected by a transmission belt 75. The dust suction structure 31 further includes an elastic member 316. The elastic member 316 is sleeved on the connecting rod 315. One end of the elastic member 316 abuts against the connecting plate 314, and the other end of the elastic member 316 abuts against the cavity 311. Since the lift and return stroke of the cam 741 are different, thus, when the cam 741 rotates, it can enable the connecting plate 314 to move along one side approaching or departing from the cavity 311, thereby driving the piston 312 to reciprocate.

[0054] In addition, since the dust suction structure 31 further includes an elastic member 316, and one end of the elastic member 316 abuts against the connecting plate 314, and the other end of the elastic member 316 abuts against the cavity 311, in this way, when the cam 741 rotates, the elastic member 316 can always apply a force to the connecting plate 314 to make it move towards the cam 741, and the connecting plate 314 can always be in contact with the cam 741, effectively avoiding the disengagement of the connecting plate 314 from the cam 741 and the situation where the cam 741 cannot drive the connecting plate 314 to move towards or away from the side of the cavity 311.

[0055] As another embodiment, the above-mentioned rotating member 74 can also be formed into a disk, the rotation center of the disk does not coincide with the axis of the first dust suction pipeline 321, the above-mentioned first transmission member 72 can also be formed into a first gear, and the above-mentioned second transmission member 73 can also be formed into a second gear.

[0056] To facilitate the installation of the coal sample preparation machine dust removal device on the cover 12, optionally, as Figure 1 and Figure 3 shown, the coal sample preparation machine dust removal device further includes a mounting frame 8. The mounting frame 8 is used to be mounted on the side of the cover 12 away from the box body 11. An accommodation cavity 81 is formed between the mounting frame 8 and the cover 12. The transmission structure 7 and the dust suction structure 31 are both mounted in the accommodation cavity 81, and the driving member 6 is mounted on the side of the mounting frame 8 away from the accommodation cavity 81. In other words, the coal sample preparation machine dust removal device is mounted on the cover 12 through the mounting frame 8, and the coal sample preparation machine dust removal device will not interfere with other components on the cover 12. At the same time, since the transmission structure 7 and the dust suction structure 31 are both mounted in the accommodation cavity 81, and the driving member 6 is mounted on the side of the mounting frame 8 away from the accommodation cavity 81, the accommodation cavity 81 can protect the transmission structure 7 and the dust suction structure 31, and the service life of the coal sample preparation machine is relatively long.

[0057] To collect the fine particulate matter such as coal dust sucked by the dust suction assembly 3, optionally, as Figures 1 to 3 shown, the dust suction assembly 3 further includes a dust storage bucket 9. The dust storage bucket 9 is used to be arranged outside the box body 11, and the dust storage bucket 9 is connected to the second dust suction section 3222. In this way, the fine particulate matter such as coal dust discharged from the dust suction structure 31 through the second dust suction section 3222 will not be directly discharged into the experimental environment, but is discharged into the dust storage bucket 9 for collection, effectively avoiding the situation where the fine particulate matter such as coal dust is directly discharged into the experimental environment, which is likely to pollute the experimental environment or damage the physical health of the operator.

[0058] The present disclosure does not limit the specific structure of the dust storage bucket 9, as long as the dust storage bucket 9 can collect the fine particulate matter such as coal dust. Optionally, as Figures 1 to 3As shown, the dust storage bucket 9 includes a bucket lid 91 and a bucket body 92. A dust suction hole is provided on the bucket lid 91. One end of the second dust suction section 3222 away from the outlet 3113 is connected to the dust suction hole. An installation plate 121 is provided on one side of the box body 11, and the bucket lid 91 is installed on the installation plate 121. In this way, when there is a large amount of fine particulate matter such as coal dust collected in the dust storage bucket 9, the operator can open the bucket lid 91 and pour out the fine particulate matter such as coal dust stored in the bucket body 92, effectively avoiding the situation where the fine particulate matter such as coal dust collected in the dust storage bucket 9 blocks the second dust suction section 3222 and / or the dust suction structure 31.

[0059] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0060] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0061] In addition, any combination can be made between various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A dust removal device for a coal sample making machine, characterized in that: include: A box assembly, the box assembly comprising a box and a cover, the box having an upwardly open mounting cavity, the mounting cavity being used to mount the coal sample making machine body, the cover being located at the top of the box, and being used to cover or expose the open end of the mounting cavity; A cleaning brush is located in the mounting cavity, the cleaning brush comprises a brush handle and bristles fixed on the brush handle, the brush handle is rotatably connected to the cover body, and the bristles are used to contact the inner surface of the cover body; The dust suction component comprises a dust suction structure and a dust suction pipe. The dust suction pipe can at least partially extend into the cover body to suck dust on the cover body under the suction action of the dust suction structure.

2. The dust removal device for coal sample preparation machine according to claim 1, characterized in that: The dust suction pipeline comprises a first dust suction pipeline and a second dust suction pipeline that can rotate relative to the first dust suction pipeline; The first dust suction pipeline is connected to the brush handle, a dust suction port is provided on the brush handle, and an inlet of the first dust suction pipeline is communicated with the dust suction port.

3. The dust removal device for coal sample preparation machine according to claim 2, characterized in that: The first dust suction pipeline and the second dust suction pipeline are connected via a rotary joint.

4. The dust removal device for coal sample preparation machine according to claim 2, characterized in that: The dust suction structure comprises a cavity, a piston and a filter sheet, a dust suction cavity is formed in the cavity, the piston is movably arranged in the dust suction cavity, and a side wall of the piston abuts against the dust suction cavity; The cavity is provided with an inlet and an outlet, and the inlet and the outlet are both located at an end of the cavity away from the piston; The second dust suction pipeline comprises a first dust suction section and a second dust suction section, one end of the first dust suction section is connected to the first dust suction pipeline, the other end of the first dust suction section is connected to the inlet, and the second dust suction section is connected to the outlet; The filter plate is used to be arranged in the dust suction chamber, the piston is located on one side of the filter plate, and the inlet and the outlet are located on the other side of the filter plate.

5. The dust removal device for coal sample preparation machine according to claim 4, characterized in that: The coal sample preparation machine dust removal device also includes a driving member and a transmission structure, and the transmission structure is constructed to be able to connect the piston and the first dust suction pipeline to the driving member, so that the driving member can drive the first dust suction pipeline to rotate and drive the piston to reciprocate in the dust suction chamber.

6. The dust removal device for coal sample preparation machine according to claim 5, characterized in that: The transmission structure comprises a transmission shaft, a first transmission member, a second transmission member and a rotating member, the driving member is transmission-connected to the transmission shaft, the first transmission member is sleeved on the transmission shaft, the second transmission member and the rotating member are sleeved on the first dust suction pipeline, and the second transmission member is transmission-connected to the first transmission member; The dust suction structure includes a connecting plate and a connecting rod, one end of the connecting rod is connected to the piston, and the other end of the connecting rod is connected to the connecting plate. The contour of the contact portion between the rotating member and the connecting plate is constructed so that the connecting plate can move toward or away from the cavity during the rotation of the rotating member.

7. The dust removal device for coal sample preparation machine according to claim 6, characterized in that: The rotating member is formed as a cam, the first transmission member is formed as a first pulley, the second transmission member is formed as a second pulley, and the first pulley is connected to the second pulley via a transmission belt; The dust suction structure also includes an elastic member, which is sleeved on the connecting rod, one end of the elastic member abuts against the connecting plate, and the other end of the elastic member abuts against the cavity.

8. The dust removal device for coal sample preparation machine according to claim 5, characterized in that: The coal sampling machine dust removal device also includes a mounting frame, which is used to be installed on a side of the cover body away from the box body, and an accommodating cavity is formed between the mounting frame and the cover body, the transmission structure and the dust suction structure are both installed in the accommodating cavity, and the driving member is installed on a side of the mounting frame away from the accommodating cavity.

9. The dust removal device for coal sample preparation machine according to claim 5, characterized in that: The dust collection assembly also includes a dust storage bucket, which is used to be arranged on the outside of the box body and is connected to the second dust collection section.

10. The dust removal device for coal sample preparation machine according to claim 9, characterized in that: The dust storage bucket comprises a bucket cover and a bucket body, the bucket cover is provided with a dust suction hole, and an end of the second dust suction section away from the outlet is connected to the dust suction hole; A mounting plate is provided at one side of the box body, and the barrel cover is mounted on the mounting plate.

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