An automated mining device for coal mining

Abstract

This invention provides an automatic mining device for coal mining, comprising a coal mining machine as the main body, a rotating drum at the front end of the coal mining machine, a coal conveyor belt inside the coal mining machine for conveying coal backward, and a top conveyor belt at the front end of the coal mining machine and behind the drum; an outwardly extending support frame at the front end of the coal mining machine, with a rotating shaft installed between the two support frames, and multiple cutting discs spaced apart in the middle of the rotating shaft; and a buffer plate on each side of the top conveyor belt above the coal mining machine. By setting up a top conveyor belt and cutting discs, this invention allows the coal mining machine to operate automatically under the drive of a conveyor motor during excavation, catching falling coal and conveying it above the coal conveyor belt. Unlike traditional coal mining machines that require backtracking to clear coal, this eliminates the need for such reversing operations, allowing the coal mining machine to continue advancing, greatly improving the efficiency of coal mining operations and ensuring the continuity of the mining process.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology, and in particular relates to an automatic mining device for coal mining. Background Technology

[0002] Thin coal seam mining machines are typically designed for mining operations where the coal seam thickness is relatively thin. Compared to ordinary mining machines, they are characterized by their low profile and compact structure, which allows them to better adapt to the limited mining space of thin coal seams.

[0003] Existing thin coal seam mining machines have certain problems in use: When the mining machine is tunneling, the vibration generated by the front drum mining coal can easily cause the coal near the front to collapse. Once coal falls, it is often necessary to reverse the mining machine and use an excavator to clean up the fallen coal before tunneling can continue. This method is not only cumbersome to operate and greatly affects the efficiency and continuity of coal mining work, but also increases the cost of manpower and materials as well as the wear and tear on equipment. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic mining device for coal mining, and the technical solution adopted is as follows:

[0005] An automatic mining device for coal mining includes a coal mining machine as the main body, a rotating drum at the front end of the coal mining machine, a coal conveyor belt for conveying coal backward inside the coal mining machine, and a top conveyor belt at the front end of the coal mining machine and behind the drum; an outwardly extending support frame at the front end of the coal mining machine, a rotating shaft installed between the two support frames, and multiple cutting discs spaced apart in the middle of the rotating shaft; and a buffer plate above the coal mining machine and on both sides of the top conveyor belt.

[0006] Furthermore, one end of the rotating shaft is connected to a cutting motor installed inside the support frame via a transmission belt, which can drive the cutting disc to continuously and uniformly cut large pieces of coal.

[0007] Furthermore, multiple protruding rods are provided below the buffer plate, and a buffer groove for the movement of the protruding rods is provided inside the coal mining machine. A spring is provided inside the buffer groove and below the protruding rods. This buffer structure can buffer the impact force of large pieces of coal and prevent the top conveyor belt from tearing or deviating due to the strong impact force generated by the sudden drop of coal. Furthermore, the cross-section of the protruding rod is an inverted T-shaped structure.

[0008] Furthermore, the top conveyor belt is supported at both ends by support shafts. One end of the support shaft is connected to a conveyor motor installed inside the coal mining machine via a transmission belt. By rotating the top conveyor belt, the coal falling above the conveyor belt can be transported to the coal conveyor belt below.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. This utility model, by setting up a top conveyor belt, can automatically operate under the drive of the conveyor motor during the mining machine's excavation, catching the falling coal and transporting it above the conveyor belt. Unlike traditional mining machines, it does not require backing up to clear coal, thus maintaining the continuous forward excavation of the mining machine, greatly improving the efficiency of coal mining work and ensuring the continuity of the mining process.

[0011] 2. This utility model utilizes a structural design including buffer plates, protruding rods, buffer grooves, and springs located on both sides of the top conveyor belt. When large pieces of coal collide with the buffer plates, the impact force can be effectively transmitted and absorbed and converted by the springs, allowing the large pieces of coal to slide smoothly onto the top conveyor belt. This prevents the top conveyor belt from tearing or deviating due to the strong impact force generated by the sudden fall of large pieces of coal, ensuring that the top conveyor belt can continuously and normally perform its function of conveying coal, extending the service life of the equipment, and improving the stability of equipment operation.

[0012] 3. This utility model has a rotating shaft structure with a cutting disc at the front end of the coal mining machine, and the cutting motor drives it to crush and cut large pieces of coal conveyed by the top conveyor belt, so that the cut pieces can fall smoothly into the coal conveyor belt, improving its smoothness. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the installation structure of the buffer plate of this utility model;

[0016] Figure 4 This is a schematic diagram of the installation structure of the cutting motor of this utility model;

[0017] Figure 5 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 6 This is a utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0019] In the picture:

[0020] 1-Coal mining machine, 11-Support frame, 12-Coal conveyor belt, 13-Buffer trough, 14-Spring, 2-Drum, 3-Rotating shaft, 31-Cutting motor, 32-Cutting disc, 4-Top conveyor belt, 41-Support shaft, 42-Conveyor motor, 5-Buffer plate, 51-Protruding rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] As attached Figure 1-6 As shown.

[0023] An automatic mining device for coal mining includes a coal mining machine 1 as the main body, with a rotating drum 2 at the front end of the coal mining machine 1. The coal mining machine 1 is a thin coal seam type coal mining machine that is currently available on the market. It adopts an external traction method. The front drum 2 can swing up and down under the action of the gear clutch inside the coal mining machine 1 to adjust the coal mining height. A coal conveyor belt 12 for conveying coal backward is provided inside the coal mining machine 1. The rear end of the coal conveyor belt 12 is connected to a scraper conveyor. The installation and use of the coal mining machine 1, drum 2 and coal conveyor belt 12 are all existing technologies.

[0024] A top conveyor belt 4 is provided at the front end of the coal mining machine 1 and behind the drum 2. Both ends of the top conveyor belt 4 are supported by support shafts 41. One end of the support shaft 41 is connected to the conveyor motor 42 installed inside the coal mining machine 1 through a transmission belt. Based on the above structure, the top conveyor belt 4 is driven to run by the conveyor motor 42.

[0025] The function of the top conveyor belt 4 is to prevent coal from collapsing near the front of the coal mining machine 1 due to the vibration generated by the front drum mining coal when the coal mining machine 1 is advancing. The top conveyor belt 4 can transport the collapsed coal to the front of the coal mining machine 1 and place it above the coal conveyor belt 12, thereby preventing coal from accumulating in this area and affecting subsequent mining work and the normal movement of the entire coal mining machine 1.

[0026] Furthermore, compared to the traditional method where coal mining machine 1 needs to be reversed and an excavator used to clear the fallen coal when it first starts mining, the top conveyor belt 4 in this device greatly improves work efficiency and continuity.

[0027] A buffer plate 5 is installed above the coal mining machine 1 and on both sides of the top conveyor belt 4. Multiple inverted T-shaped protrusions 51 are installed below the buffer plate 5. A buffer groove 13 for the movement of the protrusions 51 is installed inside the coal mining machine 1. A spring 14 is installed inside the buffer groove 13 and below the protrusions 51. Through this structural design, when the coal mining machine 1 is tunneling, large chunks of coal falling can first impact the buffer plate 5. The buffer plate 5 will transmit this impact force to the spring 14 in the buffer groove 13 below through the multiple inverted T-shaped protrusions 51. Upon receiving pressure, the spring 14 will undergo elastic deformation, gradually absorbing and converting the impact energy. This effectively buffers and disperses the originally severe impact force, allowing the large chunks of coal to subsequently slide onto the top conveyor belt 4 in a relatively stable and gentle manner. This prevents the top conveyor belt 4 from tearing or deviating due to the strong impact force generated by the sudden fall of large chunks of coal, ensuring that the top conveyor belt 4 can continuously and normally perform its function of conveying coal.

[0028] A support frame 11 extending outward is provided at the front end of the coal mining machine 1. A rotating shaft 3 is installed between the two support frames 11. Multiple cutting discs 32 are spaced apart in the rotating shaft 3. One end of the rotating shaft 3 is connected to the cutting motor 31 installed inside the support frame 11 through a transmission belt. Based on the above structure, large pieces of coal conveyed by the top conveyor belt 4 can be crushed and cut, so that they can fall onto the coal conveying belt 12 inside the mining machine 1.

[0029] The working principle of this device is as follows: When the coal mining machine 1 is tunneling, the top conveyor belt 4 runs under the drive of the conveyor motor 42, which can catch the falling coal and transport it to the top of the coal conveyor belt 12, so as to avoid the accumulation of coal affecting subsequent operations and the movement of the coal mining machine 1.

[0030] At the same time, the falling large pieces of coal will come into contact with the buffer plates 5 on both sides of the top conveyor belt 4. The impact force can be transmitted to the spring 14 in the buffer groove 13 through the protruding rod 51. The spring 14 absorbs and converts the impact force, so that the large pieces of coal can slide smoothly onto the top conveyor belt 4.

[0031] For the large pieces of coal conveyed by the top conveyor belt 4, the rotating shaft 3 between the front support frame 11 of the coal mining machine 1 rotates under the drive of the cutting motor 31, and the cutting disc 32 can crush and cut the large pieces of coal. The cut pieces can fall smoothly onto the coal conveyor belt 12 and be transported to the designated location by the scraper conveyor behind the coal conveyor belt 12.

[0032] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An automatic mining device for coal mining, comprising a coal mining machine (1) as the main body, a rotating drum (2) at the front end of the coal mining machine (1), and a coal conveyor belt (12) for conveying coal backwards inside the coal mining machine (1), characterized in that: A top conveyor belt (4) is provided at the front end of the coal mining machine (1) and behind the drum (2); an outwardly extending support frame (11) is provided at the front end of the coal mining machine (1), and a rotating shaft (3) is installed between the two support frames (11), with multiple cutting discs (32) spaced apart in the rotating shaft (3); a buffer plate (5) is provided on both sides of the top conveyor belt (4) above the coal mining machine (1).

2. The automatic mining device for coal mining as described in claim 1, characterized in that: One end of the rotating shaft (3) is connected to the cutting motor (31) installed inside the support frame (11) via a transmission belt.

3. An automatic mining device for coal mining as described in claim 1, characterized in that: The buffer plate (5) has multiple protruding rods (51) below it. The coal mining machine (1) has a buffer groove (13) for the movement of the protruding rods (51). A spring (14) is provided inside the buffer groove (13) and below the protruding rods (51).

4. An automatic mining device for coal mining as described in claim 3, characterized in that: The cross-section of the protruding rod (51) is an inverted T-shaped structure.

5. An automatic mining device for coal mining as described in claim 1, characterized in that: The top conveyor belt (4) is supported at both ends by a support shaft (41), and the support shaft (41) at one end is connected to the conveyor motor (42) installed inside the coal mining machine (1) via a transmission belt.

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