Coal mine ventilation system

Abstract

The utility model discloses a coal mine ventilation system, which relates to the technical field of coal mine ventilation equipment and comprises a ventilation pipe, the outer wall of the ventilation pipe is fixedly connected with a connecting water pipe, one end of the connecting water pipe is fixedly connected with a sprinkler head, and the inner side wall of the ventilation pipe is rotatably connected with an exhaust fan positioned on one side of the sprinkler head. When the ventilation device is used for ventilating a coal mining area, in order to improve the protection effect of the exhaust fan in daily use and the dustproof effect of the exhaust fan when the exhaust fan is not used, a servo motor can be turned on to drive a worm to rotate through rotation of a bevel gear set when the exhaust fan is not used, so that the exhaust fan is prevented from being damaged. Rotation of the worm drives the baffle fixedly connected with the rotating shaft to conduct relative overturning movement through connection of the worm gear, the effect of completely shielding the exhaust fan area is achieved, and the situation that dust is adsorbed to the surface of the exhaust fan, and the follow-up ventilation rotating speed of the exhaust fan is affected is prevented.

Description

Technical Field

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

[0002] Coal mines are pits where coal is mined. Usually, coal mines are underground, so the coal mine pits need to be ventilated immediately. Conventional coal mine ventilation devices use large fans to connect the environment inside and outside the coal mine pit, thereby speeding up the air flow and facilitating ventilation in the coal mine pit.

[0003] For example, announcement number CN 220203943 U discloses a coal mine ventilation device, including a fixed cylinder, a support frame, blades and a drive motor. The support frame is fixedly connected to the inner wall of the fixed cylinder. The device helps to make the dust and coal residue suspended in the air clump and fall by spraying water mist into the fixed cylinder, thereby helping to avoid the dust and coal residue mixed in the discharged air from flying, and further helping to prevent the coal residue discharged by the coal mine ventilation device from polluting the air environment. At the same time, since the nozzles are arranged on the left and right sides of the blades, the nozzles arranged on the right side of the blades are helpful to promote the coal residue to clump and fall before passing through the blades, thereby helping to avoid the coal residue moving with the air and hitting the blades for a long time, causing deformation and damage to the blade surface, thereby optimizing the existing coal mine ventilation device.

[0004] However, although this type of coal mine ventilation system can prevent the fan blades from being bumped during daily use, it is not very effective in blocking the dust generated by the coal mine when the fan blades are not in use. It is easy for dust to be adsorbed on the surface of the fan blades when the fan blades are not in use, affecting the subsequent rotation speed of the fan blades. It is also not effective in neutralizing the air in the ventilation area of ​​the coal mine, and it is not convenient to ventilate and spread the scented air simultaneously.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a coal mine ventilation system is proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide a coal mine ventilation system to solve the problem raised in the above-mentioned background technology that the dust blocking effect on the coal mine is not high, which easily causes dust to be adsorbed on the surface of the fan blades when the fan blades are not in use, thereby affecting the subsequent rotation speed of the fan blades.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coal mine ventilation system, comprising a ventilation pipe, the outer wall of the ventilation pipe is fixedly connected to a connecting water pipe, one end of the connecting water pipe is fixedly connected to a spray head, the inner wall of the ventilation pipe is rotatably connected to an exhaust fan located on one side of the spray head, the outer wall of the ventilation pipe is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a bevel gear set rotatably connected to the outer wall of the ventilation pipe, the outer wall of the bevel gear set is fixedly connected to a worm, the outer wall of the worm is meshed with a worm wheel rotatably connected to the outer wall of the ventilation pipe, the rotation center of the worm wheel is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a baffle rotatably connected to the outer wall of the ventilation pipe, the inner wall of the baffle is fixedly connected to a hanging rod, and a spice bag is hung on the outer wall of the hanging rod.

[0008] Furthermore, the worm wheel forms a rotating structure with the ventilation pipe through the bevel gear set and the worm, and two groups of worms are provided, and the rotation directions of the two groups of worms are opposite.

[0009] Furthermore, the baffle forms a flip structure between the worm gear and the rotating shaft and the ventilation pipe, and the rotation center of the worm gear and the rotation center of the rotating shaft are arranged to overlap with each other.

[0010] Furthermore, the outer wall profile of the baffle is set in a "U" shape.

[0011] Furthermore, the spice bags and the hanging rods are arranged in a one-to-one correspondence, and the spice bags are arranged on both sides of the exhaust fan.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides a baffle, when the coal mine mining area is ventilated through the ventilation device, in order to improve the protective effect of the exhaust fan in daily use, and the dust-proof effect when the exhaust fan is not in use, the servo motor can be turned on when the exhaust fan is not in use, and the worm is driven to rotate by the rotation of the bevel gear set. The rotation of the worm drives the baffle fixedly connected to the rotating shaft to perform relative flipping movement through the connection of the worm wheel, so as to achieve the effect of completely shielding the exhaust fan area, and prevent dust from being adsorbed on the surface of the exhaust fan and affecting the subsequent ventilation speed of the exhaust fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the ventilation device;

[0015] Figure 2 is a schematic diagram of the three-dimensional structure of the ventilation device from another direction;

[0016] Figure 3 This is a schematic diagram of the spice bag location distribution structure;

[0017] Figure 4 Schematic diagram of the connection structure between the worm gear and the rotating shaft.

[0018] In the figure: 1. Ventilation pipe; 2. Connecting water pipe; 3. Sprinkler head; 4. Exhaust fan; 5. Servo motor; 6. Bevel gear set; 7. Spice bag; 8. Worm; 9. Worm gear; 10. Rotating shaft; 11. Baffle; 12. Suspension rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example: Figures 1-4 As shown, a coal mine ventilation system includes a ventilation pipe 1, the outer wall of the ventilation pipe 1 is fixedly connected to a connecting water pipe 2, one end of the connecting water pipe 2 is fixedly connected to a spray head 3, the inner wall of the ventilation pipe 1 is rotatably connected to an exhaust fan 4 located on one side of the spray head 3, the outer wall of the ventilation pipe 1 is fixedly connected to a servo motor 5, the output end of the servo motor 5 is fixedly connected to a bevel gear set 6 rotatably connected to the outer wall of the ventilation pipe 1, the outer wall of the bevel gear set 6 is fixedly connected to a worm 8, the outer wall of the worm 8 is meshed with a worm wheel 9 rotatably connected to the outer wall of the ventilation pipe 1, the rotation center of the worm wheel 9 is fixedly connected to a rotating shaft 10, the outer wall of the rotating shaft 10 is fixedly connected to a baffle 11 rotatably connected to the outer wall of the ventilation pipe 1, the inner wall of the baffle 11 is fixedly connected to a hanging rod 12, and a spice bag 7 is hung on the outer wall of the hanging rod 12.

[0021] Furthermore, the worm wheel 9 forms a rotating structure with the ventilation pipe 1 through the bevel gear set 6 and the worm 8. There are two groups of worms 8, and the rotation directions of the two groups of worms 8 are opposite, which is conducive to the rotation of the bevel gear set 6. Through the connection of the worm 8, the worm wheel 9 is driven to rotate along the outer wall of the ventilation pipe 1, thereby driving the rotating shaft 10 to rotate conveniently.

[0022] Furthermore, the baffle 11 forms a flipping structure with the ventilation duct 1 through the worm gear 9 and the rotating shaft 10. The rotation center of the worm gear 9 and the rotation center of the rotating shaft 10 are arranged to coincide with each other, which is beneficial to the rotation of the worm gear 9. Through the connection of the rotating shaft 10, the baffle 11 is driven to flip along the outer wall of the ventilation duct 1, thereby playing a role in convenient protection of the exhaust fan 4 when not in use.

[0023] Furthermore, the outer wall profile of the baffle 11 is set in a "U" shape, which is conducive to achieving the effect of all-round shielding and protection of the exhaust fan 4 through the setting of the outer wall profile of the baffle 11 in a "U" shape.

[0024] Furthermore, the spice bag 7 and the hanging rod 12 are set in a one-to-one correspondence, and the spice bag 7 is set on both sides of the exhaust fan 4, which is beneficial to the one-to-one correspondence between the spice bag 7 and the hanging rod 12, thereby playing a role in conveniently diluting the air in the coal mine construction area.

[0025] Working principle: When using this coal mine ventilation system, when the coal mine mining area is ventilated through the ventilation device, in order to improve the protection effect of the exhaust fan 4 in daily use, the dust-proof effect when the exhaust fan 4 is not in use, the servo motor 5 can be turned on when the exhaust fan 4 is not in use, and the rotation of the bevel gear set 6 drives the worm 8 to rotate. The rotation of the worm 8 drives the baffle 11 fixedly connected to the rotating shaft 10 to perform a relative flipping movement through the connection of the worm gear 9, so as to achieve the effect of completely shielding the exhaust fan 4 area, preventing dust from being adsorbed on the surface of the exhaust fan 4 and affecting the subsequent ventilation speed of the exhaust fan 4.

[0026] This is how a coal mine ventilation system works.

[0027] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A coal mine ventilation system, comprising a ventilation pipe (1), characterized in that: The outer wall of the ventilation pipe (1) is fixedly connected to a connecting water pipe (2), one end of the connecting water pipe (2) is fixedly connected to a spray head (3), the inner wall of the ventilation pipe (1) is rotatably connected to an exhaust fan (4) located on one side of the spray head (3), the outer wall of the ventilation pipe (1) is fixedly connected to a servo motor (5), the output end of the servo motor (5) is fixedly connected to a bevel gear set (6) rotatably connected to the outer wall of the ventilation pipe (1), the outer wall of the bevel gear set (6) is fixedly connected to a worm (8), the outer wall of the worm (8) is meshed with a worm wheel (9) rotatably connected to the outer wall of the ventilation pipe (1), the rotation center of the worm wheel (9) is fixedly connected to a rotating shaft (10), the outer wall of the rotating shaft (10) is fixedly connected to a baffle (11) rotatably connected to the outer wall of the ventilation pipe (1), the inner wall of the baffle (11) is fixedly connected to a hanging rod (12), and a spice bag (7) is hung on the outer wall of the hanging rod (12).

2. A coal mine ventilation system according to claim 1, characterized in that: The worm wheel (9) forms a rotating structure with the ventilation pipe (1) through the bevel gear set (6) and the worm (8). Two groups of worms (8) are provided, and the rotation directions of the two groups of worms (8) are opposite.

3. A coal mine ventilation system according to claim 1, characterized in that: The baffle (11) forms a flip structure with the ventilation pipe (1) through the worm gear (9) and the rotating shaft (10), and the rotation center of the worm gear (9) and the rotation center of the rotating shaft (10) are arranged to overlap with each other.

4. A coal mine ventilation system according to claim 1, characterized in that: The outer wall profile of the baffle (11) is arranged in a "U" shape.

5. A coal mine ventilation system according to claim 1, characterized in that: The spice bag (7) and the hanging rod (12) are arranged in a one-to-one correspondence, and the spice bag (7) is arranged on both sides of the exhaust fan (4).

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