Crushing equipment for coal mining

Abstract

The utility model discloses crushing equipment for coal mining. The crushing equipment comprises a crushing box, a crushing device and a crushing device, wherein a crushing roller is arranged in the crushing box; the cleaning assembly is arranged on the outer side of the crushing box, the cleaning assembly comprises a dredging guide rod capable of being inserted into the crushing box in a reciprocating mode and is used for cleaning coal blockage, and a driving part is arranged on one side of the dredging guide rod; the coal crusher has the beneficial effects that through the combination of the crushing roller and the cleaning assembly, the coal accumulation or overhead phenomenon can be effectively avoided, the continuity and high efficiency of the crushing process are ensured, the material blockage is avoided, and the production efficiency is improved; through an electromagnet and timer control mode, the interior of the crushing box can be periodically cleaned, coal accumulation is avoided, the smoothness of equipment is kept, the stability of the equipment is improved, and the service life of the equipment is prolonged; the elevation angle and the rotation angle of the conveyor can be adjusted, the conveyor can adapt to equipment or production environments with different heights, the adaptability and the flexibility of the system are improved, and the conveyor can be conveniently connected with other equipment.

Description

Technical Field

[0001] This utility model relates to the field of coal crushing technology, specifically to a crushing device for coal mining. Background Technology

[0002] During the coal mining process, coal needs to be crushed. Crushed coal is easier to screen, wash, dry and other subsequent processes, which helps to improve the quality of coal products and reduce transportation and storage costs.

[0003] During crushing, wet coal easily forms clumps, leading to blockages or accumulation. Moisture increases the adhesion between coal particles, making them difficult to disperse and causing accumulation. Furthermore, coal is a porous and loose material; the shape, size, and surface characteristics of the particles affect accumulation during crushing. For example, larger coal particles with rougher surfaces may get stuck or adhere to each other, forming accumulations. Existing equipment lacks the appropriate unblocking structure to effectively prevent coal accumulation or blockage. Utility Model Content

[0004] The purpose of this invention is to provide a crushing device for coal mining to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for coal mining, comprising:

[0006] A grinding chamber with internal grinding rollers;

[0007] A cleaning component is placed outside the crushing box. The cleaning component includes a dredging guide rod that can be reciprocated into the crushing box to clear coal blockage. A drive part is provided on one side of the dredging guide rod.

[0008] A conveyor is placed below the crushing box, and an adjustment part for adjusting the rotation and elevation angle of the conveyor is provided at the bottom of the conveyor.

[0009] Preferably, a feed funnel is fixedly connected to the top of the crushing box, a guide plate is provided inside the crushing box, and a drive motor for driving the crushing roller is fixedly connected to the outside of the crushing box.

[0010] Preferably, the drive unit includes a support frame fixed to the outside of the crushing box, a limiting groove is formed in the middle of the support frame, and a sliding plate is slidably connected inside the limiting groove.

[0011] Preferably, the unblocking guide rod is fixedly connected to the sliding plate, and a spring is sleeved on the outer side of the unblocking guide rod.

[0012] Preferably, an electromagnet is fixedly connected to both the inner wall of the support frame and one side of the sliding plate, and the two electromagnets have the same magnetic poles when energized.

[0013] Preferably, the adjustment part includes a support chassis, a rotating frame is rotatably connected to the top of the support chassis, a limit pin is slidably installed on the outer side of the rotating frame, and a positioning hole that cooperates with the limit pin is opened on the top of the support chassis.

[0014] Preferably, the conveyor is rotatably mounted in the middle of the rotating frame, and a geared motor for driving the conveyor is fixedly connected to one side of the rotating frame.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: By combining the crushing roller and the cleaning component, coal accumulation or bridging can be effectively avoided, ensuring the continuity and efficiency of the crushing process, preventing material blockage, and improving production efficiency; by using electromagnets and timers for control, the inside of the crushing box can be cleaned periodically to prevent coal accumulation, keep the equipment unobstructed, and improve the stability and service life of the equipment; the elevation angle and rotation angle of the conveyor are adjustable, which can adapt to equipment or production environments of different heights, increasing the adaptability and flexibility of the system and facilitating connection with other equipment; the automated cleaning method using electromagnets and timers reduces manual intervention, improves the degree of automation of operation, and at the same time, by precisely controlling the cleaning cycle, excessive wear of the equipment is avoided. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the drive motor of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the crushing roller of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the sliding plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating frame of this utility model.

[0021] In the diagram: 1. Support chassis; 2. Rotating frame; 3. Conveyor; 4. Gear motor; 5. Positioning hole; 6. Limit pin; 7. Crushing box; 8. Crushing roller; 9. Drive motor; 10. Support frame; 11. Electromagnet; 12. Sliding plate; 13. Unblocking guide rod; 14. Spring; 15. Feed funnel; 16. Guide plate; 17. Limit groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , 2 As shown in Figures 3, 4, and 5, this utility model provides a technical solution: a crushing device for coal mining, comprising: a crushing box 7 with two crushing rollers 8 rotatably mounted inside; a cleaning component placed outside the crushing box 7, the cleaning component including a dredging guide rod 13 that can be reciprocatedly inserted into the crushing box 7 for cleaning coal blockage, and a driving part provided on one side of the dredging guide rod 13; and a conveyor 3 placed below the crushing box 7, with an adjustment part at the bottom of the conveyor 3 for adjusting the rotation and elevation angle of the conveyor 3.

[0024] It should be noted that the conveying equipment of this utility model adds coal from the feed hopper 15 and crushes it through the crushing roller 8. During the crushing process, when the coal supports each other and causes the crushing roller 8 to idle, the cleaning component is intermittently energized, so that the unblocking guide rod 13 on the sliding plate 12 is inserted into the crushing box 7. The unblocking guide rod 13 impacts the coal inside to prevent the coal from being suspended. After crushing, the coal falls onto the top of the conveyor 3 and is transported by the conveyor 3. Before conveying, the elevation angle and rotation angle of the conveyor 3 are adjusted so that it can be used in conjunction with equipment of different heights.

[0025] Please see Figure 1 , 2 As shown in Figure 3, a feed funnel 15 is fixedly connected to the top of the crushing box 7, a guide plate 16 is provided inside the crushing box 7, and a drive motor 9 for driving the crushing roller 8 is fixedly connected to the outside of the crushing box 7.

[0026] It should be noted that the feed hopper 15 of this utility model is located at the top of the crushing box and is used to guide the coal into the crushing box to ensure that the material can smoothly enter the equipment for processing; the guide plate 16 is set inside the crushing box to guide and optimize the flow path of the material, ensuring that the material can be evenly distributed on the crushing roller 8, avoiding blockage or uneven crushing effect; the drive motor 9 is installed on the outside of the crushing box and is responsible for driving the rotation of the crushing roller 8. The power of the motor is transmitted to the crushing roller through the transmission device, so that the roller can effectively crush the material entering the box.

[0027] Please see Figure 2 , 3As shown in Figure 4, the drive unit includes a support frame 10 fixed to the outside of the crushing box 7. A limiting groove 17 is opened in the middle of the support frame 10. A sliding plate 12 is slidably connected inside the limiting groove 17. A dredging guide rod 13 is fixedly connected to the sliding plate 12. A spring 14 is sleeved on the outside of the dredging guide rod 13. An electromagnet 11 is fixedly connected to the inner wall of the support frame 10 and one side of the sliding plate 12. The two electromagnets 11 have the same magnetic poles when energized.

[0028] It should be noted that the electromagnet 11 of this utility model is connected to the timer, and the unblocking guide rod 13 is vertically arranged above the two crushing rollers 8. When it is necessary to clean the inside of the crushing box 7, the timer controls the electromagnet to be energized and de-energized. When energized, under the action of repulsion, the sliding plate 12 slides inside the limiting groove 17. During the sliding process, the unblocking guide rod 13 carried by the sliding plate 12 moves into the crushing box 7, and the sliding plate 12 compresses the spring 14. When the electromagnet 11 is de-energized, the spring 14 drives the unblocking guide rod 13 to reset through the sliding plate 12. In this way, the inner wall of the crushing box 7 is unblocked in a cycle.

[0029] Please see Figure 1 , 2 As shown in Figure 5, the adjustment unit includes a support chassis 1, a rotating frame 2 is rotatably connected to the top of the support chassis 1, a limit pin 6 is slidably installed on the outer side of the rotating frame 2, a positioning hole 5 that cooperates with the limit pin 6 is opened on the top of the support chassis 1, a conveyor 3 is rotatably installed in the middle of the rotating frame 2, a brush is installed at one end of the conveyor 3 near the crushing box 7 to prevent coal from slipping along the conveyor 3, and a reduction motor 4 that drives the conveyor 3 is fixedly connected to one side of the rotating frame 2.

[0030] It should be noted that this utility model determines the position of the conveyor 3 by rotating the rotating frame 2 at the top of the supporting chassis 1 and then inserting the limiting pin 6 into the positioning hole 5 below. The reduction motor 4 consists of a motor and a worm gear reducer. The reduction motor 4 drives the conveyor 3 to rotate around the output shaft of the reducer, thereby adjusting the elevation angle of the conveyor 3 and the conveying height to adapt it to equipment of different heights.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crushing device for coal mining, characterized in that: include: A crushing box (7) with an internal crushing roller (8); The cleaning component is located outside the crushing box (7). The cleaning component includes a dredging guide rod (13) that can be reciprocated into the crushing box (7) to clear coal blockage. A drive part is provided on one side of the dredging guide rod (13). The conveyor (3) is located below the crushing box (7), and the bottom of the conveyor (3) is provided with an adjustment part for adjusting the rotation and elevation angle of the conveyor (3).

2. The crushing equipment for coal mining according to claim 1, characterized in that: The top of the crushing box (7) is fixedly connected to a feed funnel (15), the inside of the crushing box (7) is provided with a guide plate (16), and the outside of the crushing box (7) is fixedly connected to a drive motor (9) for driving the crushing roller (8).

3. The crushing equipment for coal mining according to claim 1, characterized in that: The drive unit includes a support frame (10) fixed to the outside of the crushing box (7). A limiting groove (17) is provided in the middle of the support frame (10), and a sliding plate (12) is slidably connected inside the limiting groove (17).

4. A crushing device for coal mining according to claim 3, characterized in that: The unblocking guide rod (13) is fixedly connected to the sliding plate (12), and a spring (14) is sleeved on the outside of the unblocking guide rod (13).

5. A crushing device for coal mining according to claim 4, characterized in that: Electromagnets (11) are fixedly connected to the inner wall of the support frame (10) and one side of the sliding plate (12), and the two electromagnets (11) have the same magnetic poles when energized.

6. A crushing device for coal mining according to claim 1, characterized in that: The adjustment unit includes a support chassis (1), a rotating frame (2) is rotatably connected to the top of the support chassis (1), a limit pin (6) is slidably installed on the outer side of the rotating frame (2), and a positioning hole (5) that cooperates with the limit pin (6) is opened on the top of the support chassis (1).

7. A crushing device for coal mining according to claim 6, characterized in that: The conveyor (3) is rotatably mounted in the middle of the rotating frame (2), and a geared motor (4) for driving the conveyor (3) is fixedly connected to one side of the rotating frame (2).

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