Multifunctional ventilation device for underground coal mine

Abstract

The utility model provides a multifunctional ventilation device for an underground coal mine, which relates to the field of ventilation devices for coal mine wells and comprises a base, a round hole is arranged on the inner wall of the base, a ventilation pipe is fixedly connected inside the round hole, a filter screen and a placing plate are sequentially arranged inside the ventilation pipe from top to bottom, and a servo motor is fixedly mounted at the top of the placing plate. According to the multifunctional ventilation device for the underground coal mine, the rotating kinetic energy of a servo motor is transmitted to a rotating rod to trigger dynamic rotation of the rotating rod, a cross-shaped scraper is assembled in a sliding groove of the rotating rod, so that the cross-shaped scraper rotates synchronously along with the rotating rod, the top of the scraper is connected with a cross-shaped block through a spring element, and when the cross-shaped scraper is attached to the surface of a filter screen, the cross-shaped block can rotate synchronously; by means of the self-adaptive pressure adjusting mechanism of the spring, extrusion force can be accurately applied, it is ensured that no matter how the blocking condition of the filter screen changes, the scraping process can be kept efficient and mild, and physical abrasion to the filter screen is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of coal mine ventilation devices, in particular to a multifunctional ventilation device used underground in coal mines. Background Art

[0002] Coal mines refer to places rich in coal resources, which are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to dig tunnels underground to mine coal, which is an underground coal mine. When the coal seam is very close to the surface, it is generally chosen to directly strip the surface soil layer to mine coal, which is an open-pit coal mine. Coal is the most important solid fuel and a kind of combustible organic rock. The mine ventilation system is an important part of the mine production system. Mine ventilation has an increasingly greater impact on the production and safety of the mine. When mining coal resources underground, in order to maintain the oxygen supply inside the ore body for internal workers to breathe, the multifunctional ventilation device for underground coal mines is a comprehensive ventilation equipment designed for underground working environments such as coal mines. It integrates multiple functions in one, aiming to effectively improve the air quality underground and ensure the safety and health of operators.

[0003] The existing multifunctional ventilation device used in underground coal mines, when processing the dust on the surface of the filter screen, first close the closing cover, then turn on the power of the servo motor, the servo motor rotates to drive the transmission rod to rotate, the transmission rod drives the rotating rod to rotate, the rotating rod rotates to drive the scraper to rotate, the scraper can scrape the dust on the surface of the filter screen, then close the pipe cover and turn on the power of the exhaust fan, the scraper scrapes the stubborn dust on the surface of the filter screen, and then the dust is sucked out by the exhaust fan and discharged through the dust exhaust pipe.

[0004] However, during the cleaning process when the scraper is in direct contact with the filter, although the servo motor can be turned on to drive the transmission device to drive the scraper to rotate to remove the accumulated dust on the surface of the filter, this process cannot avoid causing direct physical wear on the filter. In particular, when the scraper continues to rotate and exerts force on the filter, it is very easy to cause damage to the filter fibers, affecting its filtering efficiency, shortening its service life, and even causing filtering loopholes, thereby reducing the purification efficiency and reliability of the overall ventilation system.

[0005] Therefore, it is necessary to provide a new multifunctional ventilation device for underground coal mines to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a multifunctional ventilation device for underground coal mines.

[0007] The utility model provides a multifunctional ventilation device for underground coal mines, comprising a base, an inner wall of the base is provided with a circular hole, a ventilation pipe is fixedly connected to the inside of the circular hole, a filter screen and a placement plate are arranged in sequence from top to bottom in the ventilation pipe, a servo motor is fixedly installed on the top of the placement plate, a rotating rod is fixedly connected to the output end of the servo motor, a cross-shaped sliding groove is provided on the upper end of the rotating rod, a cross scraper is arranged in the sliding part of the rotating rod, and the cross scraper is fitted with the top of the filter screen, a cross block is fixedly connected to the top of the rotating rod, and a plurality of elastic members are fixedly connected between the bottom of the cross block and the cross scraper.

[0008] Furthermore, limiting grooves are provided at the bottom of the cross block and the top of the cross scraper.

[0009] Furthermore, the elastic member is a spring, and two ends of the spring are respectively fixedly connected to the limiting grooves of the cross block and the cross scraper.

[0010] Furthermore, a pipe cover is hingedly connected to the top of the ventilation pipe via a hinge, and an exhaust fan is fixedly mounted on the inner wall of the pipe cover.

[0011] Furthermore, a ventilation groove is provided on the inner wall of the placement plate.

[0012] Furthermore, a plug-in column is fixedly connected to the inner wall of the pipe cover, the number of the plug-in columns is set to two, and a plug-in hole adapted to the plug-in column is opened at the edge of the top of the ventilation pipe, and the number of the plug-in holes is set to two.

[0013] Compared with the related art, the multifunctional ventilation device for underground coal mines provided by the utility model has the following beneficial effects:

[0014] This multifunctional ventilation device used underground in coal mines transmits the rotational kinetic energy of the servo motor to the rotating rod, triggering the dynamic rotation of the rotating rod. The cross scraper is assembled in the sliding groove of the rotating rod, so that the cross scraper rotates synchronously. The top of this scraper is connected to the cross block through a spring element, so that when the cross scraper fits the surface of the filter, it can accurately apply extrusion force through the adaptive pressure adjustment mechanism of the spring, ensuring that no matter how the filter blockage condition changes, the scraping process can remain efficient and gentle, greatly reducing the physical wear on the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the multifunctional ventilation device for underground coal mines provided by the utility model;

[0016] Figure 2 A partial cross-sectional structural schematic diagram of a multifunctional ventilation device for underground coal mines provided by the utility model;

[0017] Figure 3A schematic diagram of the structure of the cross scraper provided by the utility model;

[0018] Figure 4 A schematic diagram of the structure of the rotating rod provided by the utility model;

[0019] Figure 5 This is a schematic diagram of the partial structure of the rotating rod provided by the utility model.

[0020] Numbers in the figure: 1. Base; 2. Ventilation pipe; 3. Filter; 4. Placement plate; 5. Ventilation groove; 6. Servo motor; 7. Rotating rod; 8. Sliding groove; 9. Cross scraper; 10. Cross block; 11. Limiting groove; 12. Spring; 13. Pipe cover; 14. Plug column; 15. Exhaust fan. DETAILED DESCRIPTION

[0021] 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. Based on the embodiments of 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.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 , Figure 1 This is a schematic diagram of the overall structure of the multifunctional ventilation device for underground coal mines provided by the utility model; Figure 2 A partial cross-sectional structural schematic diagram of a multifunctional ventilation device for underground coal mines provided by the utility model; Figure 3 A schematic diagram of the structure of the cross scraper provided by the utility model; Figure 4 A schematic diagram of the structure of the rotating rod provided by the utility model; Figure 5 This is a schematic diagram of the partial structure of the rotating rod provided by the utility model.

[0023] In the specific implementation process, Figures 1 to 5As shown, the utility model provides a multifunctional ventilation device for underground coal mines, including a base 1, a circular hole is provided on the inner wall of the base 1, a ventilation pipe 2 is fixedly connected inside the circular hole, a filter screen 3 and a placement plate 4 are arranged in sequence inside the ventilation pipe 2 from top to bottom, a ventilation groove 5 is provided on the inner wall of the placement plate 4, so that the air inside the ventilation pipe 2 can circulate, a servo motor 6 is fixedly installed on the top of the placement plate 4, a rotating rod 7 is fixedly connected to the output end of the servo motor 6, a cross-shaped sliding groove 8 is provided on the upper end of the rotating rod 7, a cross scraper 9 is provided inside the sliding of the rotating rod 7, and the cross scraper 9 is fitted with the top of the filter screen 3, a cross block 10 is fixedly connected to the top of the rotating rod 7, and a plurality of elastic members are fixedly connected between the bottom of the cross block 10 and the cross scraper 9;

[0024] The cross scraper 9 can slide vertically in the sliding groove 8, thereby cooperating with the elastic member to achieve adaptive adjustment;

[0025] A limiting groove 11 is provided at the bottom of the cross block 10 and the top of the cross scraper 9, and the elastic member is a spring 12. Both ends of the spring 12 are fixedly connected to the limiting grooves 11 of the cross block 10 and the cross scraper 9, respectively. The spring 12 is in the limiting groove 11 of the bottom of the cross block 10 and the cross scraper 9, and takes the cross block 10 as a fulcrum to exert a reaction force on the cross scraper 9.

[0026] A pipe cover 13 is hinged at the top of the ventilation pipe 2, an exhaust fan 15 is fixedly installed on the inner wall of the pipe cover 13, a plug-in column 14 is fixedly connected to the inner wall of the pipe cover 13, and the number of the plug-in columns 14 is set to two. A plug-in hole adapted for the plug-in column 14 is opened at the edge of the top of the ventilation pipe 2, and the number of the plug-in holes is set to two.

[0027] The working principle provided by the utility model is as follows: when the utility model is implemented, after the energy supply of the servo motor 6 is activated, the servo motor 6 is started immediately, and its rotational kinetic energy is transmitted to the rotating rod 7, triggering the dynamic rotation of the rotating rod 7, and the cross scraper 9 is assembled in the sliding groove 8 of the rotating rod 7, so that the cross scraper 9 rotates synchronously therewith, and the top of this scraper is connected to the cross block 10 through the spring 12 element, so that when the cross scraper 9 is attached to the surface of the filter screen 3, it can accurately apply the extrusion force through the adaptive pressure adjustment mechanism of the spring 12, ensuring that no matter how the filter screen clogging condition changes, the scraping process can maintain high The cleaning process is effective and gentle, which greatly reduces the physical wear on the filter 3. The subsequent process is to start the operation command of the exhaust fan 15 while closing the pipe cover 13. The suction force of the exhaust fan 15 prompts the scraper to further remove the stubborn dust remaining on the filter 3. The loosened dust is then effectively sucked and completely discharged out of the system through the dust exhaust pipe. The seamless connection of this series of operations not only significantly improves the efficiency and cleanliness of the cleaning operation, but also shows excellent performance in maintaining the long-term performance of the filter 3 and the overall stability of the equipment, providing a solid guarantee for the continuous and efficient operation of the underground ventilation device in the coal mine.

[0028] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A multifunctional ventilation device for underground coal mines, comprising a base (1), the inner wall of the base (1) is provided with a circular hole, a ventilation pipe (2) is fixedly connected to the inside of the circular hole, a filter screen (3) and a placement plate (4) are arranged in sequence from top to bottom inside the ventilation pipe (2), a servo motor (6) is fixedly installed on the top of the placement plate (4), and a rotating rod (7) is fixedly connected to the output end of the servo motor (6), characterized in that: A cross-shaped sliding groove (8) is provided at the upper end of the rotating rod (7), a cross scraper (9) is provided inside the sliding part of the rotating rod (7), and the cross scraper (9) is in contact with the top of the filter screen (3), a cross block (10) is fixedly connected to the top of the rotating rod (7), and a plurality of elastic members are fixedly connected between the bottom of the cross block (10) and the cross scraper (9).

2. The multifunctional ventilation device for underground coal mines according to claim 1, characterized in that: The bottom of the cross block (10) and the top of the cross scraper (9) are provided with a limiting groove (11).

3. The multifunctional ventilation device for underground coal mines according to claim 2, characterized in that: The elastic member is a spring (12), and two ends of the spring (12) are respectively fixedly connected to the cross block (10) and the limiting groove (11) of the cross scraper (9).

4. The multifunctional ventilation device for underground coal mines according to claim 3, characterized in that: A pipe cover (13) is hingedly connected to the top of the ventilation pipe (2) via a hinge, and an exhaust fan (15) is fixedly mounted on the inner wall of the pipe cover (13).

5. The multifunctional ventilation device for underground coal mines according to claim 4, characterized in that: The inner wall of the placement plate (4) is provided with a ventilation groove (5).

6. The multifunctional ventilation device for underground coal mines according to claim 5, characterized in that: The inner wall of the pipe cover (13) is fixedly connected with a plug-in column (14), the number of which is set to two, and a plug-in hole adapted to the plug-in column (14) is opened at the edge of the top of the ventilation pipe (2), the number of which is set to two.

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