Coal conveying device

Abstract

The utility model provides a coal conveying device which comprises a conveying part used for conveying coal; the blanking hopper is arranged above the conveying part, the blanking hopper is provided with a feeding port, a storage cavity and a discharging port which are sequentially communicated from top to bottom, and the blanking hopper is provided with two mounting side walls which are oppositely arranged in the conveying direction of the conveying part; the dredging assembly comprises a dredging part, and the dredging part is arranged on the mounting side wall in a swinging mode in the vertical direction so as to dredge the coal in the conveying direction of the conveying part; the video recording equipment is used for shooting towards the material storage cavity so as to record the state of the coal in the material storage cavity, and the position of the video recording equipment relative to the blanking hopper is adjustable; and the video display part is electrically connected with the video recording equipment, and the video recording equipment transmits the collected video information to the video display part. The problems that in the prior art, a blanking hopper is blocked, production is affected through manual inspection and cleaning, and the labor intensity is large are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal conveying devices, in particular to a coal conveying device. Background Art

[0002] Coal storage facilities play a vital role in many links of the coal industry chain. Their design and operating efficiency directly affect the operational efficiency and safe production of enterprises. In the process of coal transportation, coal needs to be dumped onto the conveying device. In the process of coal dumping, in order to prevent the coal from scattering on the ground, a drop hopper is usually set above the conveying device. Pour the coal into the drop hopper to reduce or avoid the coal scattering on the ground.

[0003] However, due to the mechanical cutting of coal, the cut coal is of different sizes, and due to the ambient temperature, the water content of the coal is high, and the coal is easily blocked in the hopper. This will not only prevent the coal from flowing out smoothly, but may also cause coal jams, wall sticking and coal freezing, which will seriously affect the company's continuous production and daily operation safety.

[0004] At present, the solution to the problem of hopper blockage mostly relies on manual inspection and cleaning, which is labor-intensive. Due to the lack of accurate judgment methods, it is often difficult for workers to timely and accurately identify the time and specific location of the blockage, which may not only lead to the deterioration of the blockage problem, but also cause interruptions to the company's production activities. In addition, when coal is blocked, workers usually use crowbars to pry the gangue loose to clear the blocked coal. However, the above-mentioned manual inspection and the use of crowbars are labor-intensive. Utility Model Content

[0005] The utility model provides a coal conveying device to solve the problem in the prior art that a drop hopper is blocked, production is affected by manual inspection and cleaning, and the labor intensity is high.

[0006] The utility model provides a coal conveying device, which comprises: a conveying part, which is used to convey coal; a drop hopper, which is arranged above the conveying part, the drop hopper has a feeding port, a storage cavity and a discharge port which are sequentially connected from top to bottom, and the drop hopper has two mounting side walls which are relatively arranged along the conveying direction of the conveying part; a dredging component, which comprises a dredging part, and the dredging part is swingably arranged on the mounting side wall along the vertical direction to dredge the coal in the conveying direction of the conveying part; a video recording device, which is used to shoot toward the storage cavity to record the state of coal in the storage cavity, and the position of the video recording device relative to the drop hopper is adjustable; and a video display part, which is electrically connected to the video recording device, and the video recording device transmits the collected video information to the video display part.

[0007] Furthermore, the dredging part includes: a rotating shaft, which is rotatably arranged on the installation side wall; a dredging rod, which is arranged on the circumferential surface of the rotating shaft, and the dredging rod rotates around the rotating shaft in the vertical direction.

[0008] Furthermore, a plurality of dredging rods are provided, and the plurality of dredging rods are arranged on the circumferential surface of the rotating shaft at intervals along the circumferential direction of the rotating shaft.

[0009] Furthermore, a positioning hole is arranged on the circumferential surface of the rotating shaft, the cross section of the positioning hole is a polygon, one end of the dredging rod is inserted into the positioning hole and is positioned and matched with the positioning hole, and the rotating shaft and the dredging rod are welded.

[0010] Furthermore, the dredging component also includes a first driving part, which is arranged on the dropping hopper and is drivingly connected to the dredging part to enable the dredging part to rotate.

[0011] Furthermore, an installation opening is provided on the installation side wall, the first driving part is provided on the outer side wall of the drop hopper, and the first driving part includes a driving shaft, which passes through the installation opening into the material storage cavity and is drivingly connected to the rotating shaft.

[0012] Furthermore, a first keyway is provided on the circumferential surface of the drive shaft, a through hole is provided on the end surface of the rotating shaft facing the installation side wall, a second keyway is provided on the side wall of the through hole, and the clearing component also includes a connecting key, part of which is provided in the first keyway, the drive shaft and the connecting key are respectively provided in the through hole and the second keyway, and the drive shaft and the rotating shaft are connected via the connecting key.

[0013] Furthermore, the drop hopper includes a hopper body and a flexible pad. The dredging part is swingably arranged on the inner wall of the hopper body in the vertical direction. The flexible pad is arranged at the bottom end of the mounting side wall. The flexible pad extends along the conveying direction of the conveying part, and the bottom of the flexible pad abuts against the top surface of the conveying part.

[0014] Furthermore, the coal conveying device also includes: a vertical support frame, the height of the vertical support frame is adjustable; a horizontal support frame, one end of the horizontal support frame is arranged on the top of the vertical support frame, and the video recording device is movably arranged on the horizontal support frame along the length direction of the horizontal support frame.

[0015] Furthermore, the video recording device includes: a mounting seat, movably arranged on a horizontal support frame; a camera, rotatably arranged on the mounting seat; and a second driving unit, arranged on the mounting seat and connected to the camera drive to enable the camera to rotate relative to the mounting seat.

[0016] By applying the technical solution of the utility model, by adjusting the relative position of the video recording device with respect to the hopper, the video recording device can shoot the state of the coal at different positions in the hopper, and the staff can timely observe the state of the coal in the hopper through the video display unit. When it is observed that the coal in the hopper is blocked, the coal in the hopper is cleared by the clearing component to ensure the smoothness of the coal transportation process. In traditional technical solutions, most of them rely on manual inspections and use crowbars to clear the blocked coal. Compared with traditional technical solutions, the setting of this solution does not require staff to go to the work site to observe whether the coal in the hopper is blocked, and does not require staff to use crowbars to clear the blocked coal, thereby reducing the labor intensity of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The structure diagram of the coal conveying device provided by the embodiment of the utility model is shown;

[0019] Figure 2 A schematic structural diagram showing the dredging assembly provided by an embodiment of the utility model installed on a hopper body is shown.

[0020] The above drawings include the following reference numerals:

[0021] 10. Conveying unit;

[0022] 20. Drop hopper;

[0023] 21. Hopper body; 22. Flexible pad;

[0024] 30. Dredging components;

[0025] 31. Dredging Department;

[0026] 311, rotating shaft; 312, dredging rod;

[0027] 32. First driving unit; 321. Driving shaft;

[0028] 33. Connect key;

[0029] 40. Video recording equipment;

[0030] 41. Mounting seat; 42. Camera;

[0031] 50. Video display unit;

[0032] 60. Vertical support frame;

[0033] 70. Horizontal support frame; 71. Telescopic cylinder;

[0034] 81. Hydraulic pump station; 82. Control system. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1 and Figure 2 As shown, the embodiment of the utility model provides a coal conveying device, which includes a conveying part 10, a hopper 20, a dredging assembly 30, a video recording device 40 and a video display unit 50. Among them, the conveying part 10 is used to convey coal. The hopper 20 is arranged above the conveying part 10, and the hopper 20 has a feed inlet, a storage cavity and a discharge port connected in sequence from top to bottom. The hopper 20 has two mounting side walls arranged oppositely along the conveying direction of the conveying part 10. The dredging assembly 30 includes a dredging part 31, and the dredging part 31 is swingably arranged on the mounting side wall along the vertical direction to dredge the coal in the conveying direction of the conveying part 10. The video recording device 40 is used to shoot toward the storage cavity to record the state of coal in the storage cavity, and the position of the video recording device 40 relative to the hopper 20 is adjustable. The video display unit 50 is electrically connected to the video recording device 40, and the video recording device 40 transmits the collected video information to the video display unit 50.

[0037] By applying the technical solution of the utility model, by adjusting the relative position of the video recording device 40 with respect to the drop hopper 20, the video recording device 40 can shoot the state of the coal at different positions in the drop hopper 20, and the staff can timely observe the state of the coal in the drop hopper 20 through the video display unit 50. When it is observed that the coal in the drop hopper 20 is blocked, the coal in the drop hopper 20 is cleared through the clearing component 30 to ensure the smoothness of the coal transportation process. In traditional technical solutions, most of them rely on manual inspections and clear the blocked coal with a crowbar. Compared with traditional technical solutions, the setting of this solution does not require the staff to go to the work site to observe whether the coal in the drop hopper 20 is blocked, and does not require the staff to use a crowbar to clear the blocked coal, thereby reducing the labor intensity of the staff.

[0038] In the embodiment of the present solution, the conveying part 10 includes a conveyor belt, and the arrangement of the conveyor belt can improve the smoothness of the coal transportation process and reduce the jamming of the conveyor belt after the coal is dumped onto the conveyor belt. In addition, the arrangement of the conveyor belt has a simple structure and strong adaptability.

[0039] In the embodiment of this scheme, the dredging part 31 includes a rotating shaft 311 and a dredging rod 312. The rotating shaft 311 is rotatably arranged on the mounting side wall. The dredging rod 312 is arranged on the circumference of the rotating shaft 311, and the dredging rod 312 swings in the vertical direction around the rotating shaft 311. The arrangement of the rotating shaft 311 and the dredging rod 312 has a simple structure and can ensure the dredging effect on the coal.

[0040] Specifically, in the embodiment of the present solution, the hopper 20 is substantially a cubic shell structure. Two oppositely disposed side walls of the hopper 20 respectively form two mounting side walls, and the two mounting side walls are oppositely disposed along the conveying direction of the conveying part 10 .

[0041] In some embodiments of the present solution, a clearing assembly 30 is provided on one of the mounting side walls.

[0042] This solution does not limit the specific number of the dredging components 30 arranged on the installation side wall. One group or multiple groups can be arranged.

[0043] In the embodiment of the present solution, a group of clearing components 30 are respectively arranged on each mounting side wall.

[0044] Specifically, the axis direction of the rotating shaft 311 is perpendicular to the installation side wall, the dredging rod 312 is parallel to the installation side wall, and the dredging rod 312 can swing 360° in the vertical direction around the rotating shaft 311. Such an arrangement can improve the dredging effect of coal.

[0045] This solution does not limit the number of dredging rods 312 in a set of dredging components 30.

[0046] In some embodiments of the present solution, a clearing rod 312 is provided in a group of clearing assemblies 30.

[0047] In the embodiment of the present solution, a plurality of dredging rods 312 are provided in a group of dredging components 30, and the plurality of dredging rods 312 are arranged at intervals on the circumferential surface of the rotating shaft 311 along the circumferential direction of the rotating shaft 311. Such arrangement can drive the plurality of dredging rods 312 to rotate synchronously during the rotation of the rotating shaft 311, so that the coal at the blocked position is exerted with force by the dredging rods 312, and such continuous action can quickly loosen the coal and restore the fluidity of the coal, so as to facilitate the loosening of the coal at the blocked position, thereby improving the dredging effect and dredging speed of the coal.

[0048] This solution does not limit the specific connection method between the dredging rod 312 and the rotating shaft 311.

[0049] In some embodiments of the present solution, the dredging rod 312 and the rotating shaft 311 are an integrally formed structure, which can be specifically formed by casting.

[0050] In the embodiment of the present scheme, the dredging rod 312 and the rotating shaft 311 are separate structures, and the dredging rod 312 and the rotating shaft 311 are welded.

[0051] Furthermore, in the embodiment of the present solution, a positioning hole is provided on the circumference of the rotating shaft 311, and the cross section of the positioning hole is a polygon. One end of the dredging rod 312 is inserted into the positioning hole and is positioned and matched with the positioning hole, and the rotating shaft 311 and the dredging rod 312 are welded. In this way, when the rotating shaft 311 and the dredging rod 312 are welded, the relative position of the rotating shaft 311 and the dredging rod 312 can be limited through the positioning hole, which improves the stability during the welding process and improves the welding effect of the rotating shaft 311 and the dredging rod 312.

[0052] Furthermore, the dredging assembly 30 further includes a first driving unit 32, which is disposed on the hopper 20 and is drivingly connected to the dredging unit 31 to swing the dredging unit 31. Such a configuration can improve the degree of automation of swinging the dredging unit 31, further improve the smoothness of the coal dredging process, and further reduce the labor intensity of the staff.

[0053] This solution does not limit the specific form of the first driving part 32. The first driving part 32 may include a hydraulic motor or a driving motor.

[0054] In the embodiment of the present solution, the first driving unit 32 includes a hydraulic motor. The coal conveying device also includes a hydraulic pump station 81 and a control system 82, and the hydraulic pump station 81 is connected to the hydraulic motor through a pipeline. The control system 82 is electrically connected to the first solenoid valve of the hydraulic pump station 81, so that the staff can control the working state of the hydraulic motor. Such a setting can significantly improve the dredging efficiency of coal, reduce the downtime of the coal conveying equipment during coal conveying, improve the conveying efficiency of the coal gangue conveying equipment, and further realize the degree of automation of the control of the conveying device.

[0055] Specifically, a mounting opening is provided on the mounting side wall, and the first driving part 32 is provided on the outer side wall of the hopper 20. The first driving part 32 includes a driving shaft 321, and the driving shaft 321 is passed through the mounting opening into the material storage cavity and is drivingly connected to the rotating shaft 311. In this way, the first driving part 32 is located on the outer side wall of the hopper 20, which reduces or avoids the possibility of coal falling on the first driving part 32, and improves the service life of the first driving part 32.

[0056] In some embodiments of the present solution, the coal conveying device further includes a protective cover, which is arranged on the outer side wall of the hopper 20 and is used to protect the first driving part 32. Such an arrangement can further protect the first driving part 32 and improve the service life of the first driving part 32.

[0057] This solution does not limit the specific connection method between the driving shaft 321 and the rotating shaft 311.

[0058] In some embodiments of the present solution, the driving shaft 321 and the rotating shaft 311 are welded.

[0059] In some embodiments of the present solution, the driving shaft 321 and the rotating shaft 311 are connected by fasteners.

[0060] In the embodiment of the present scheme, a first keyway is provided on the circumferential surface of the driving shaft 321, a through hole is provided on the end surface of the rotating shaft 311 facing the mounting side wall, a second keyway is provided on the side wall of the through hole, the dredging assembly 30 further comprises a connecting key 33, a part of the connecting key 33 is provided in the first keyway, the driving shaft 321 and the connecting key 33 are respectively provided in the through hole and the second keyway, and the driving shaft 321 and the rotating shaft 311 are connected via the connecting key 33. Such a configuration can improve the convenience of connecting the driving shaft 321 and the rotating shaft 311.

[0061] Furthermore, the coal conveying device further comprises a connecting bearing, which is arranged in the mounting hole, the outer ring of which is fixedly connected to the hole wall of the mounting hole, and the driving shaft 321 is passed through the connecting bearing and fixedly connected to the inner ring of the connecting bearing. Such an arrangement can improve the stability of the driving shaft 321 during rotation.

[0062] In the embodiment of the present solution, the hopper 20 includes a hopper body 21 and a flexible pad 22, the dredging portion 31 is swingably arranged on the inner side wall of the hopper body 21 in the vertical direction, the flexible pad 22 is arranged at the bottom end of the mounting side wall, the flexible pad 22 extends along the conveying direction of the conveying portion 10, and the bottom of the flexible pad 22 abuts against the top surface of the conveying portion 10. In the process of pouring coal into the hopper 20, the hopper 20 may be shaken, and such an arrangement can reduce the possibility of collision between the hopper 20 and the surface of the conveying portion 10, and improve the stability of the hopper 20.

[0063] In the embodiment of the present solution, the coal conveying device further comprises a vertical support frame 60 and a horizontal support frame 70. The height of the vertical support frame 60 is adjustable. One end of the horizontal support frame 70 is arranged at the top of the vertical support frame 60, and the video recording device 40 is movably arranged on the horizontal support frame 70 along the length direction of the horizontal support frame 70. Such arrangement can facilitate the adjustment of the position of the video recording device 40 relative to the drop hopper 20.

[0064] In the embodiment of the present solution, the coal conveying device further comprises a telescopic oil cylinder 71, which is arranged on the horizontal support frame 70 and is drivingly connected to the video recording device 40. Such arrangement can facilitate adjustment of the position of the video recording device 40 relative to the horizontal support frame 70.

[0065] In some embodiments of the present solution, the telescopic cylinder 71 is connected to the hydraulic pump station 81 through a connecting pipeline, and the control system 82 controls the operating state of the telescopic cylinder 71 through the second solenoid valve of the hydraulic pump station.

[0066] Furthermore, the video recording device 40 includes a mounting seat 41, a camera 42 and a second driving unit. The mounting seat 41 is movably arranged on a horizontal support frame 70, and the telescopic cylinder 71 is drivingly connected to the mounting seat 41. The camera 42 is rotatably arranged on the mounting seat 41. The second driving unit is arranged on the mounting seat 41 and drivingly connected to the camera 42 so that the camera 42 can rotate relative to the mounting seat 41. Such an arrangement enables the camera 42 to shoot different angles and positions of the drop hopper 20, which can improve the monitoring range of the camera 42 and facilitate observation of the state of coal at different positions and angles in the drop hopper 20. Furthermore, the control system 82 is electrically connected to the second driving unit to realize the rotation of the camera 42.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0068] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0069] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0070] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0071] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0072] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A coal conveying device, characterized in that: The coal conveying device comprises: A conveying unit (10), wherein the conveying unit (10) is used to convey coal; A material drop hopper (20) is arranged above the conveying portion (10), the material drop hopper (20) having a material feed port, a material storage cavity and a material discharge port which are sequentially connected from top to bottom, and the material drop hopper (20) has two mounting side walls which are arranged opposite to each other along the conveying direction of the conveying portion (10); A dredging assembly (30) comprises a dredging portion (31), wherein the dredging portion (31) is swingably arranged on the mounting side wall in a vertical direction to dredge coal in a conveying direction of the conveying portion (10); A video recording device (40) is used to shoot toward the storage cavity to record the state of coal in the storage cavity, and the position of the video recording device (40) relative to the drop hopper (20) is adjustable; The video display unit (50) is electrically connected to the video recording device (40), and the video recording device (40) transmits the collected video information to the video display unit (50).

2. The coal conveying device according to claim 1, characterized in that: The dredging part (31) comprises: A rotating shaft (311) rotatably disposed on the mounting side wall; The dredging rod (312) is arranged on the peripheral surface of the rotating shaft (311), and the dredging rod (312) swings in the vertical direction around the rotating shaft (311).

3. The coal conveying device according to claim 2, characterized in that: A plurality of dredging rods (312) are provided, and the plurality of dredging rods (312) are arranged on the circumferential surface of the rotating shaft (311) at intervals along the circumferential direction of the rotating shaft (311).

4. The coal conveying device according to claim 3, characterized in that: A positioning hole is provided on the circumferential surface of the rotating shaft (311), the cross section of the positioning hole is polygonal, one end of the dredging rod (312) is inserted into the positioning hole and is positioned and matched with the positioning hole, and the rotating shaft (311) and the dredging rod (312) are welded.

5. The coal conveying device according to claim 2, characterized in that: The dredging assembly (30) further comprises a first driving part (32), wherein the first driving part (32) is arranged on the dropping hopper (20) and is drivingly connected to the dredging part (31) so as to cause the dredging part (31) to swing.

6. The coal conveying device according to claim 5, characterized in that: The mounting side wall is provided with a mounting opening, the first driving part (32) is provided on the outer side wall of the drop hopper (20), the first driving part (32) comprises a driving shaft (321), the driving shaft (321) is passed through the mounting opening into the material storage cavity and is drivingly connected to the rotating shaft (311).

7. The coal conveying device according to claim 6, characterized in that: A first keyway is provided on the circumferential surface of the driving shaft (321); a through hole is provided on the end surface of the rotating shaft (311) facing the mounting side wall; a second keyway is provided on the side wall of the through hole; the dredging component (30) further comprises a connecting key (33); a portion of the connecting key (33) is provided in the first keyway; the driving shaft (321) and the connecting key (33) are respectively provided in the through hole and the second keyway; and the driving shaft (321) and the rotating shaft (311) are connected via the connecting key (33).

8. The coal conveying device according to claim 1, characterized in that: The drop hopper (20) comprises a hopper body (21) and a flexible pad (22); the dredging portion (31) is swingably arranged on the inner side wall of the hopper body (21) in a vertical direction; the flexible pad (22) is arranged at the bottom end of the mounting side wall; the flexible pad (22) extends along the conveying direction of the conveying portion (10); and the bottom of the flexible pad (22) abuts against the top surface of the conveying portion (10).

9. The coal conveying device according to claim 1, characterized in that: The coal conveying device also includes: A vertical support frame (60), wherein the height of the vertical support frame (60) is adjustable; A horizontal support frame (70), one end of which is arranged on the top of the vertical support frame (60), and the video recording device (40) is movably arranged on the horizontal support frame (70) along the length direction of the horizontal support frame (70).

10. The coal conveying device according to claim 9, characterized in that: The video recording device (40) comprises: A mounting seat (41) movably disposed on the horizontal support frame (70); A camera (42) is rotatably arranged on the mounting seat (41); A second driving unit is arranged on the mounting seat (41) and is drivingly connected to the camera (42) so as to enable the camera (42) to rotate relative to the mounting seat (41).

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