Coal mine ventilation adjusting mechanism

Abstract

The utility model relates to the technical field of coal mine ventilation, and discloses a coal mine ventilation adjusting mechanism which comprises a ventilator, a ventilation fan is arranged in the ventilator, one end of the ventilator is fixedly connected with a connecting frame, the outer wall of the connecting frame is fixedly connected with a supporting frame, and a motor is fixedly connected in the supporting frame. A rotating column is fixedly connected to the output end of the motor, a first rotating rod is rotatably connected to one end of the rotating column, a connecting rod is rotatably connected to one side of the first rotating rod, a second rotating rod is rotatably connected to one side of the connecting rod, and first rotating shafts are rotatably connected to the interiors of the second rotating rod and the first rotating rod; and the first rotating shaft is rotationally connected to the interior of the connecting frame. According to the ventilation device, the motor and the first rotating shaft are used for driving the opening and closing blades to work, the effect of adjusting the ventilation quantity is achieved, the problems that the ventilation quantity cannot be effectively adjusted, and ventilation is not smooth or airflow distribution is caused are solved, and the flexibility of the ventilation device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilation, in particular to a coal mine ventilation regulating mechanism. Background Art

[0002] Coal mines are resources mined by people in nature. The mining sites are generally divided into underground coal mines and open-pit coal mines. When mining in the mine, it is necessary to improve the ventilation effect in the mine. The main purpose of mine ventilation is to provide sufficient fresh air in the mine, provide the necessary oxygen for the construction workers, exhaust the harmful gases and dust in the mine, and create a safe workplace.

[0003] Traditional coal mine ventilation devices usually first deliver fresh air to the underground working surface through the shaft and exhaust the exhaust gas. The second is the fan, which is usually located at the wellhead or underground. The fan blows fresh air to the underground working surface and extracts the exhaust gas at the same time to ensure safe ventilation inside the mine, provide the necessary airflow and environmental conditions for the operations in the mine, and ensure the safe production of miners;

[0004] However, the traditional coal mine ventilation device has a relatively simple structure and usually lacks the function of adjusting the ventilation volume. As a result, when facing different geological conditions or large changes in the gas outburst of coal seams at the working face, the ventilation volume cannot be effectively adjusted to meet actual needs, resulting in poor ventilation or uneven airflow distribution. Therefore, a coal mine ventilation adjustment mechanism is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a coal mine ventilation regulating mechanism, which aims to improve the problem that the existing technology cannot effectively adjust the ventilation volume when facing different geological conditions or large changes in the gas outburst of coal seams at the working face, resulting in poor ventilation or airflow distribution.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A ventilation and adjustment mechanism for a coal mine, comprising a ventilator, a ventilation fan is arranged inside the ventilator, one end of the ventilator is fixedly connected to a connection frame, an outer wall of the connection frame is fixedly connected to a support frame, a motor is fixedly connected inside the support frame, an output end of the motor is fixedly connected to a rotating column, one end of the rotating column is rotatably connected to a first rotating rod, one side of the first rotating rod is rotatably connected to a connecting rod, one side of the connecting rod is rotatably connected to a second rotating rod, the second rotating rod and the first rotating rod are both rotatably connected to a first rotating shaft, the first rotating shaft is rotatably connected to the inside of the connection frame, and an opening and closing assembly is arranged inside the first rotating shaft;

[0008] As a further description of the above technical solution:

[0009] The opening and closing assembly includes an opening and closing leaf, the outer wall of the opening and closing leaf is fixedly connected to the inside of the first rotating shaft, the opening and closing leaf is rotatably connected to the inside of the connecting frame, a supporting column is arranged inside the connecting frame, and an outer wall on one side of the opening and closing leaf is fixedly connected to a second rotating shaft, and the second rotating shaft is rotatably connected to the inside of the supporting column;

[0010] As a further description of the above technical solution:

[0011] A filter screen is provided at one end of the connection frame, and a hollow column is slidably connected inside the filter screen;

[0012] As a further description of the above technical solution:

[0013] The hollow column is slidably connected to the inside of the connection frame, and a threaded column is threadedly connected to the inside of the hollow column;

[0014] As a further description of the above technical solution:

[0015] The top end of the threaded column is rotatably connected to a knob, and the bottom end of the threaded column is internally slidably connected to a sliding column;

[0016] As a further description of the above technical solution:

[0017] The bottom end of the sliding column is fixedly connected with a conical column, and the outer wall of the sliding column is sleeved with a spring;

[0018] As a further description of the above technical solution:

[0019] The top end of the spring is fixedly connected to the inside of the threaded column, and the bottom end of the spring is fixedly connected to the inside of the tapered column;

[0020] As a further description of the above technical solution:

[0021] A ball is slidably connected inside the hollow column, the conical column is in contact with the ball, and the ball is slidably connected to one side of the connection frame.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the opening and closing leaf structure is driven by a motor and a rotating column, a first rotating rod, a connecting rod, a second rotating rod and a first rotating shaft structure to achieve an effect of adjustable ventilation volume, thereby solving the problem of poor ventilation or airflow distribution caused by being unable to effectively adjust the ventilation volume in the face of different geological conditions or when the amount of coal seam gas outflow at the working face changes greatly, thereby improving the flexibility of the ventilation device.

[0024] 2. In the utility model, with the cooperation of the knob and the threaded column, the sliding column, the spring and the tapered column structure, the ball bearing works, achieving the effect of quickly disassembling and assembling the filter screen as needed, solving the problem that the filter screen cannot be quickly installed as needed, and the dust, dirt and bacteria in the air will enter the inside of the device, causing equipment failure or damage, thereby improving the applicability of the ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a coal mine ventilation adjustment mechanism proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of a connection frame of a coal mine ventilation adjustment mechanism proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the outer wall structure of a connection frame of a coal mine ventilation adjustment mechanism proposed by the utility model;

[0028] Figure 4 This is a schematic cross-sectional view of a filter screen of a coal mine ventilation adjustment mechanism proposed by the utility model;

[0029] Figure 5 The utility model is a schematic diagram of the hollow column cross-section structure of a coal mine ventilation adjustment mechanism.

[0030] Legend:

[0031] 1. Fan; 2. Ventilation fan; 3. Connection frame; 4. Support frame; 5. Motor; 6. Rotating column; 7. First rotating rod; 8. Connecting rod; 9. First rotating shaft; 10. Opening and closing leaf; 11. Second rotating shaft; 12. Support column; 13. Filter; 14. Hollow column; 15. Threaded column; 16. Knob; 17. Sliding column; 18. Spring; 19. Conical column; 20. Ball; 21. Second rotating rod. DETAILED DESCRIPTION

[0032] 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 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.

[0033] Reference Figure 1-Figure 3, the utility model provides an embodiment: a coal mine ventilation adjustment mechanism, including a ventilator 1, a ventilation fan 2 is arranged inside the ventilator 1, one end of the ventilator 1 is fixedly connected to a connecting frame 3, the outer wall of the connecting frame 3 is fixedly connected to a supporting frame 4, a motor 5 is fixedly connected inside the supporting frame 4, the output end of the motor 5 is fixedly connected to a rotating column 6, one end of the rotating column 6 is rotatably connected to a first rotating rod 7, one side of the first rotating rod 7 is rotatably connected to a connecting rod 8, one side of the connecting rod 8 is rotatably connected to a second rotating rod 21, the second rotating rod 21 and the first rotating rod 7 are both rotatably connected to a first rotating shaft 9, the first rotating shaft 9 is rotatably connected to the inside of the connecting frame 3, an opening and closing component is arranged inside the first rotating shaft 9, the opening and closing component includes an opening and closing leaf 10, the outer wall of the opening and closing leaf 10 is fixedly connected to the inside of the first rotating shaft 9, the opening and closing leaf 10 is rotatably connected to the inside of the connecting frame 3, a supporting column 12 is arranged inside the connecting frame 3, the outer wall of one side of the opening and closing leaf 10 is fixedly connected to the second rotating shaft 11, and the second rotating shaft 11 is rotatably connected to the inside of the support column 12.

[0034] Specifically, when the ventilation volume needs to be adjusted, the output end of the motor 5 is first started to make the rotating column 6 start to rotate. The rotational force is transmitted to the first rotating rod 7 connected to one end thereof, thereby driving the rotation of the connecting rod 8. The movement of the connecting rod 8 affects the second rotating rod 21 connected to one side thereof. At the same time, the first rotating rod 7 and the second rotating rod 21 also act on the first rotating shaft 9 connected to one side respectively. Different first rotating shafts 9 rotate through different forces, so that the opening and closing leaves 10 connected thereto rotate in the connecting frame 3. The movement of these opening and closing leaves 10 drives the rotation of the second rotating shaft 11, resulting in changes in the overall structure, thereby adjusting the ventilation volume of the ventilation system. The user can accurately control the ventilation volume by controlling the opening angle of the opening and closing leaves 10 according to actual needs, so as to meet the ventilation needs under different environmental conditions.

[0035] Reference Figure 1 , Figure 4 and Figure 5 A filter screen 13 is provided at one end of the connecting frame 3, and a hollow column 14 is slidably connected inside the filter screen 13. The hollow column 14 is slidably connected inside the connecting frame 3. A threaded column 15 is threadedly connected inside the hollow column 14. A knob 16 is rotatably connected to the top of the threaded column 15. A sliding column 17 is slidably connected inside the bottom end of the threaded column 15. A conical column 19 is fixedly connected to the bottom end of the sliding column 17. A spring 18 is sleeved on the outer wall of the sliding column 17. The top end of the spring 18 is fixedly connected to the inside of the threaded column 15, and the bottom end of the spring 18 is fixedly connected to the inside of the conical column 19.

[0036] Specifically, when the filter 13 needs to be disassembled, first align the filter 13 with one end of the connecting frame 3 and ensure that they are completely fitted. Then, insert the hollow column 14 into the filter 13 and the connecting frame 3. Subsequently, turn the knob 16. The movement of the knob 16 will cause the threaded column 15 to rotate inside the hollow column 14. Due to the threaded connection between the threaded column 15 and the hollow column 14, the movement of the threaded column 15 will cause the internally connected sliding column 17 to start moving. The movement of the sliding column 17 will drive the tapered column 19 at the bottom to move. At the same time, the threaded column 15 will squeeze the spring 18 to cause it to contract, thereby achieving a driving effect.

[0037] Reference Figure 1 , Figure 4 and Figure 5 A ball 20 is slidably connected inside the hollow column 14 , the tapered column 19 is in contact with the ball 20 , and the ball 20 is slidably connected to one side of the connecting frame 3 .

[0038] Specifically, through the movement of the tapered column 19, the ball 20 will also be squeezed to slide outward, and the tapered column 19 will prevent the ball 20 from sliding back again, thereby clamping it on one side of the connecting frame 3, so that the filter 13 is fixed in position to complete the installation. When disassembly is required, it is only necessary to turn the knob 16 in the opposite direction, which will cause the threaded column 15 to drive the sliding column 17 to move outward, and the tapered column 19 will be reset through the rebound action of the spring 18. In this way, the ball 20 will slide back into the hollow column 14, completing the rapid disassembly of the filter 13, thereby achieving the effect of quickly disassembling and assembling the filter 13 according to needs.

[0039] Working principle: when the ventilation volume needs to be adjusted, the rotating column 6 is first driven to rotate through the output end of the motor 5. The rotating column 6 is subjected to force to drive the first rotating rod 7 connected at one end to rotate. The first rotating rod 7 is subjected to force to drive the connecting rod 8 connected on one side to rotate. The connecting rod 8 is subjected to force to drive the second rotating rod 21 connected on one side to rotate. At the same time, the second rotating rod 21 and the first rotating rod 7 both drive the first rotating shaft 9 connected on one side to rotate. Different first rotating shafts 9 are subjected to force to drive different opening and closing leaves 10 to rotate inside the connecting frame 3. The opening and closing leaves 10 are subjected to force to drive the second rotating shaft 11 on one side to rotate inside the supporting column 12, so that the opening and closing leaves 10 are flipped open inside the connecting frame 3. The opening angle of the opening and closing leaves 10 is controlled according to the needs of the user, thereby achieving the effect of adjustable ventilation volume. When the filter 13 needs to be disassembled and assembled, the filter 13 is first fitted with one end of the connecting frame 3, and then the hollow column 14 is inserted into the filter 13 and the connecting frame. The inside of the connecting frame 3 is connected. At this time, the knob 16 is turned. The knob 16 is forced to drive the threaded column 15 to rotate inside the hollow column 14. The threaded connection between the threaded column 15 and the hollow column 14 causes the threaded column 15 to move. The threaded column 15 is forced to drive the internally connected sliding column 17 to move. The sliding column 17 is forced to drive the tapered column 19 at the bottom to move. At the same time, the threaded column 15 squeezes the spring 18 to make it contract. The movement of the tapered column 19 causes the ball 20 inside the hollow column 14 to move. The ball 20 is squeezed and forced to slide outside the hollow column 14. At the same time, the conical column 19 blocks the ball 20, and then the ball 20 is clamped on one side of the connecting frame 3 to complete the fixation. When disassembling, it is only necessary to rotate the knob 16 in the opposite direction, so that the threaded column 15 drives the sliding column 17 to move outside the hollow column 14. At the same time, the spring 18 drives the conical column 19 to reset through the rebound, and then the ball 20 slides into the hollow column 14 to complete the disassembly, thereby achieving the effect of quickly disassembling and assembling the filter screen 13 according to needs.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal mine ventilation adjustment mechanism, comprising a ventilator (1), Features: A ventilation fan (2) is arranged inside the ventilator (1); one end of the ventilator (1) is fixedly connected to a connection frame (3); the outer wall of the connection frame (3) is fixedly connected to a support frame (4); a motor (5) is fixedly connected inside the support frame (4); the output end of the motor (5) is fixedly connected to a rotating column (6); one end of the rotating column (6) is rotatably connected to a first rotating rod (7); one side of the first rotating rod (7) is rotatably connected to a connecting rod (8); one side of the connecting rod (8) is rotatably connected to a second rotating rod (21); the second rotating rod (21) and the first rotating rod (7) are both rotatably connected to a first rotating shaft (9); the first rotating shaft (9) is rotatably connected to the inside of the connection frame (3); an opening and closing component is arranged inside the first rotating shaft (9).

2. A coal mine ventilation adjustment mechanism according to claim 1, Features: The opening and closing assembly comprises an opening and closing leaf (10), the outer wall of the opening and closing leaf (10) is fixedly connected to the inside of the first rotating shaft (9), the opening and closing leaf (10) is rotatably connected to the inside of the connecting frame (3), a supporting column (12) is arranged inside the connecting frame (3), and the outer wall of one side of the opening and closing leaf (10) is fixedly connected to the second rotating shaft (11), and the second rotating shaft (11) is rotatably connected to the inside of the supporting column (12).

3. A coal mine ventilation adjustment mechanism according to claim 1, Features: A filter screen (13) is provided at one end of the connection frame (3), and a hollow column (14) is slidably connected inside the filter screen (13).

4. A coal mine ventilation adjustment mechanism according to claim 3, Features: The hollow column (14) is slidably connected inside the connection frame (3), and a threaded column (15) is threadedly connected inside the hollow column (14).

5. A coal mine ventilation adjustment mechanism according to claim 4, Features: The top end of the threaded column (15) is rotatably connected to a knob (16), and the bottom end of the threaded column (15) is slidably connected to a sliding column (17).

6. A coal mine ventilation regulating mechanism according to claim 5, Features: The bottom end of the sliding column (17) is fixedly connected to a conical column (19), and the outer wall of the sliding column (17) is sleeved with a spring (18).

7. A coal mine ventilation regulating mechanism according to claim 6, Features: The top end of the spring (18) is fixedly connected to the inside of the threaded column (15), and the bottom end of the spring (18) is fixedly connected to the inside of the conical column (19).

8. A coal mine ventilation regulating mechanism according to claim 7, Features: A ball (20) is slidably connected inside the hollow column (14), the conical column (19) and the ball (20) are in contact, and the ball (20) is slidably connected to one side of the connection frame (3).

Images