Ventilation and dust removal mechanism for coal mining

Abstract

The utility model relates to the technical field of coal mine ventilation and dust removal, in particular to a coal mine mining ventilation and dust removal mechanism which comprises a filtering box body, an air draft header pipe is fixedly installed at the top of the filtering box body, a five-way seat is fixedly installed at one end of the air draft header pipe, and first air draft branch pipes are fixedly installed on the four sides of the five-way seat. A corrugated pipe is fixedly installed at one end of the first air draft branch pipe. The air draft device has the advantages that the length of the air draft pipeline can be adjusted through the matching of the filter box body, the air draft header pipe, the five-way seat, the first air draft branch pipe, the corrugated pipe, the second air draft branch pipe, the supporting plate, the first driving device and the second driving device, so that the air draft and dust removal range of dust generated during mining of a coal mine is larger; and through cooperation between a supporting plate and a supporting frame, a second air draft branch pipe can be supported, and therefore adjustment of the second air draft branch pipe can be more stable.

Description

Technical Field

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

[0002] Coal mining ventilation and dust removal mechanism mainly includes ventilation system and dust removal equipment. The main function of ventilation system is to ensure the freshness and cleanliness of air in the mine, discharge harmful gases and dust, control the diffusion of gas and coal dust, maintain the temperature and humidity in the mine, so as to provide a good working environment and ensure the health and safety of miners.

[0003] Chinese utility model application number CN202223251908.9 discloses a coal mine mining ventilation and dust removal mechanism, including a box body, a dust removal and ventilation assembly is arranged above the box body, the dust removal and ventilation assembly includes a dust suction box fixedly installed on the top of the box body, a U-shaped bracket is fixedly installed on the top of the box body, and a DC motor is fixedly installed on the top of the box body. By setting the dust removal and ventilation assembly, the dust in the air inside the coal mine can be cleaned and filtered from multiple directions and angles, avoiding the problem of manual adjustment of the direction and angle by the class committee during use. At the same time, the filter net can also be disassembled and replaced through the dust removal and ventilation assembly, avoiding the problem of excessive dust accumulation on the filter net, thereby affecting the filtering effect. However, the device still has some shortcomings during use: the device removes dust from the air inside the coal mine through a dust suction pipe, but the dust adsorption effect is not good enough for dust far away from the pipe mouth, resulting in insufficient adsorption efficiency. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to propose a ventilation and dust removal mechanism for coal mines to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a coal mine ventilation and dust removal mechanism, including a filter box, an exhaust main pipe is fixedly installed on the top of the filter box, a five-way seat is fixedly installed on one end of the exhaust main pipe, a first exhaust branch pipe is fixedly installed on four sides of the five-way seat, a corrugated pipe is fixedly installed on one end of the first exhaust branch pipe, a second exhaust branch pipe is fixedly installed on one end of the corrugated pipe, a support plate is fixedly installed on the surface of the exhaust main pipe, a first driving device is fixedly installed on the top of the support plate, a second driving device is fixedly installed on the top of the five-way seat, and the first driving device is fixedly installed on the top of the five-way seat. The driving device includes a cylinder and a connecting rod, the cylinder is fixedly installed on the top of the support plate, the top of the cylinder output shaft is fixedly installed with a lifting block, grooves are provided on both sides of the lifting block, the connecting rod is fixedly installed on one side of the two second air extraction branch pipes, the surface of the connecting rod and the inside of the lifting block are rotatably connected with a transmission rod, the technical effect achieved by the above scheme is: the lifting block is driven to rise by the cylinder operation, and then the rise of the lifting block drives the transmission rod to rotate, and then the rotation of the transmission rod drives the connecting rod to move, so that the two second air extraction branch pipes move, and then the bellows is extended, the The second driving device includes a bracket and a fixed plate, the bracket is fixedly installed on the top of the five-way seat, a motor is fixedly installed on the bottom of the bracket, a rotating shaft is fixedly installed on the bottom of the motor through a coupling, a gear is fixedly installed on one end of the rotating shaft, the fixed plate is fixedly installed on the surface of the two second air extraction branch pipes, and a toothed plate meshing with the gear is fixedly installed on one side of the fixed plate. The technical effect achieved by adopting the above scheme is: the gear is driven to rotate by the operation of the motor, and then the rotation of the gear drives the toothed plate threadedly connected thereto to move, thereby driving the two second air extraction branch pipes to move, and the above scheme is achieved The technical effect is: the lifting block is driven to rise by the operation of the cylinder, and then the rising of the lifting block drives the transmission rod to rotate, and then the rotation of the transmission rod pushes the connecting rod to move, thereby making the two second air extraction branch pipes move, and then the bellows is extended, and at the same time the motor operation drives the gear to rotate, and then the rotation of the gear drives the toothed plate threadedly connected thereto to move, thereby driving the two second air extraction branch pipes to move, so that the two second air extraction branch pipes can be adjusted according to needs to absorb dust at a short distance, and the two second air extraction branch pipes can absorb dust at a long distance, thereby making the dust absorption more comprehensive.

[0007] Preferably, any of the above schemes has a width of the groove that is the same as the width of the transmission rod, and a limiting plate is fixedly installed at one end of the connecting rod. The technical effect achieved by adopting the above scheme is that the transmission rod can be limited by the groove, so that the two second exhaust pipes can move stably.

[0008] Preferably, any of the above schemes is in the shape of a U-shape, the length of the tooth plate is greater than the radius of the support plate, and the length of the tooth plate is less than half the length of the filter box body. The technical effect achieved by adopting the above scheme is that the motor can be stably supported by the bracket, so that it can stably drive the two second exhaust pipes to perform mobile operations.

[0009] Preferably, any of the above schemes is that the bottom of the second exhaust branch pipe is fixedly connected with a support frame, the shape of the support frame is L-shaped, and one end of the support frame is inserted into the interior of the support plate. The technical effect achieved by adopting the above scheme is that the movement of the exhaust branch pipe can be guided and supported by the support frame, so that the exhaust branch pipe can move more stably.

[0010] Preferably, any of the above schemes is provided with a ball at the bottom of the tooth plate, and the ball is tangent to the top of the five-way seat. The technical effect achieved by adopting the above scheme is that the tooth plate can be supported by the ball, and the friction between the tooth plate and the five-way seat is reduced during movement.

[0011] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0012] 1. The ventilation and dust removal mechanism for coal mining can adjust the length of the exhaust duct through the cooperation between the filter box, the exhaust main pipe, the five-way seat, the first exhaust branch pipe, the bellows, the second exhaust branch pipe, the support plate, the first drive device and the second drive device, so that the range of exhaust and dust removal of dust generated during coal mining can be expanded, thereby making the dust removal effect better.

[0013] 2. This coal mine mining ventilation and dust removal mechanism can support the second exhaust branch pipe through the cooperation between the support plate and the support frame, so that the adjustment thereof can be more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the first perspective of the embodiment of the utility model;

[0015] Figure 2 This is the first embodiment of the utility model Figure 1 A schematic diagram of the structure at A;

[0016] Figure 3 This is the first embodiment of the utility model Figure 1 Schematic diagram of the structure at point B.

[0017] Wherein: 1-filter box, 2-exhaust main pipe, 3-five-way seat, 4-first exhaust branch pipe, 5-bellows, 6-second exhaust branch pipe, 7-support plate, 8-first drive device, 801-cylinder, 802-connecting rod, 803-lifting block, 804-groove, 805-transmission rod, 9-second drive device, 901-bracket, 902-fixed plate, 903-motor, 904-rotating shaft, 905-gear, 906-tooth plate, 10-limiting plate, 11-support frame. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0019] Embodiment 1: Figures 1 to 3As shown, a ventilation and dust removal mechanism for coal mine mining comprises a filter box 1, a main exhaust pipe 2 is fixedly installed on the top of the filter box 1, a five-way seat 3 is fixedly installed on one end of the main exhaust pipe 2, a first exhaust branch pipe 4 is fixedly installed on four sides of the five-way seat 3, a bellows 5 is fixedly installed on one end of the first exhaust branch pipe 4, a second exhaust branch pipe 6 is fixedly installed on one end of the bellows 5, a support plate 7 is fixedly installed on the surface of the main exhaust pipe 2, a first driving device 8 is fixedly installed on the top of the support plate 7, a second driving device 9 is fixedly installed on the top of the five-way seat 3, the first driving device 8 comprises a cylinder 801 and a connecting rod 802, the cylinder 801 is fixedly installed on the top of the support plate 7, and the output shaft of the cylinder 801 A lifting block 803 is fixedly installed at the top, and grooves 804 are provided on both sides of the lifting block 803. A connecting rod 802 is fixedly installed on one side of the two second air extraction branch pipes 6. The surface of the connecting rod 802 and the interior of the lifting block 803 are rotatably connected with a transmission rod 805. The lifting block 803 is driven to rise by the operation of the cylinder 801, and then the rise of the lifting block 803 drives the transmission rod 805 to rotate, and then the rotation of the transmission rod 805 pushes the connecting rod 802 to move, so that the two second air extraction branch pipes 6 move, and then the bellows 5 extends. The second driving device 9 includes a bracket 901 and a fixing plate 902. The bracket 901 is fixedly installed on the top of the five-way seat 3. A motor 903 is fixedly installed at the bottom of the bracket 901, and a rotating shaft 904 is fixedly installed at the bottom of the motor 903 through a coupling. A gear 905 is fixedly installed at one end of the rotating shaft 904. The fixed plate 902 is fixedly installed on the surfaces of the two second air extraction branch pipes 6. A toothed plate 906 meshing with the gear 905 is fixedly installed on one side of the fixed plate 902. The motor 903 drives the gear 905 to rotate, and then the rotation of the gear 905 drives the toothed plate 906 threadedly connected thereto to move, thereby driving the two second air extraction branch pipes 6 to move, and the lifting block 803 is driven to rise through the operation of the cylinder 801, and then the rise of the lifting block 803 drives the transmission rod 805 to rotate The second air exhaust pipe 2 is rotated by the motor 903, and then the rotation of the transmission rod 805 drives the connecting rod 802 to move, thereby moving the two second air exhaust branch pipes 6, and then extending the bellows 5. At the same time, the motor 903 drives the gear 905 to rotate, and then the rotation of the gear 905 drives the toothed plate 906 threadedly connected thereto to move, thereby driving the two second air exhaust branch pipes 6 to move, so that the two second air exhaust branch pipes 6 can be adjusted as needed to adsorb dust at a short distance, and the two second air exhaust branch pipes 6 can adsorb dust at a long distance, thereby making the dust adsorption more comprehensive. The interior of the filter box 1 is provided with a filtering structure, a dust removal and ventilation component, and a driving structure for driving the main air exhaust pipe 2 to rotate.

[0020] As an optional technical solution of the present invention, the width of the groove 804 is the same as the width of the transmission rod 805, and a limiting plate 10 is fixedly installed at one end of the connecting rod 802. The transmission rod 805 can be limited by the groove 804, so that the two second exhaust branch pipes 6 can move stably.

[0021] As an optional technical solution of the present utility model, the shape of the bracket 901 is U-shaped, the length of the tooth plate 906 is greater than the radius of the support plate 7, and the length of the tooth plate 906 is less than half the length of the filter box 1. The bracket 901 can stably support the motor 903, so that it can stably drive the two second exhaust branch pipes 6 to perform mobile operations.

[0022] As an optional technical solution of the present invention, a support frame 11 is fixedly connected to the bottom of the second exhaust branch pipe 6. The shape of the support frame 11 is L-shaped. One end of the support frame 11 is inserted into the interior of the support plate 7. The support frame 11 can guide and support the movement of the exhaust branch pipe, so that the exhaust branch pipe can move more stably.

[0023] As an optional technical solution of the present invention, a ball is provided at the bottom of the tooth plate 906, and the ball is tangent to the top of the five-way seat 3. The ball can support the tooth plate 906 and reduce the friction between the tooth plate 906 and the five-way seat 3 during movement.

[0024] A coal mine ventilation and dust removal mechanism, the working principle of which is as follows: the cylinder 801 is operated to drive the lifting block 803 to rise, and then the rise of the lifting block 803 drives the transmission rod 805 to rotate, and then the rotation of the transmission rod 805 pushes the connecting rod 802 to move, thereby moving the two second air exhaust branch pipes 6, and then the bellows 5 is extended, and at the same time the motor 903 operates to drive the gear 905 to rotate, and then the rotation of the gear 905 drives the toothed plate 906 threadedly connected thereto to move, thereby driving the two second air exhaust branch pipes 6 to move, so that the two second air exhaust branch pipes 6 can be adjusted according to needs to absorb dust at a short distance, and the two second air exhaust branch pipes 6 can absorb dust at a long distance, so that the dust absorption is more comprehensive.

[0025] To sum up, the ventilation and dust removal mechanism for coal mining can adjust the length of the exhaust duct through the cooperation among the filter box 1, the exhaust main pipe 2, the five-way seat 3, the first exhaust branch pipe 4, the bellows 5, the second exhaust branch pipe 6, the support plate 7, the first drive device 8 and the second drive device 9, so that the range of exhaust and dust removal of dust generated during coal mining can be larger, thereby making the dust removal effect better, and through the cooperation between the support plate 7 and the support frame 11, the second exhaust branch pipe 6 can be supported, so that its adjustment can be more stable.

[0026] Embodiment 2, a ventilation and dust removal mechanism for coal mines. Based on the above embodiment, this embodiment connects the inner part of the support plate 7 to the first sleeve in a sliding manner, and the inner part of the first sleeve is connected to the support frame 11 in a sliding manner. Through the secondary sliding support structure, the two second exhaust branch pipes 6 driven by the second driving device 9 can move a longer distance.

Claims

1. A ventilation and dust removal mechanism for coal mining, comprising a filter box (1), characterized in that: An exhaust main pipe (2) is fixedly mounted on the top of the filter box (1); a five-way seat (3) is fixedly mounted on one end of the exhaust main pipe (2); a first exhaust branch pipe (4) is fixedly mounted on four sides of the five-way seat (3); a bellows (5) is fixedly mounted on one end of the first exhaust branch pipe (4); a second exhaust branch pipe (6) is fixedly mounted on one end of the bellows (5); a support plate (7) is fixedly mounted on the surface of the exhaust main pipe (2); a first driving device (8) is fixedly mounted on the top of the support plate (7); a second driving device (9) is fixedly mounted on the top of the five-way seat (3); the first driving device (8) comprises a cylinder (801) and a connecting rod (802); the cylinder (801) is fixedly mounted on the top of the support plate (7); a lifting block (803) is fixedly mounted on the top of the output shaft of the cylinder (801); the lifting block Grooves (804) are provided on both sides of (803), the connecting rod (802) is fixedly mounted on one side of the two second air exhaust branch pipes (6), the surface of the connecting rod (802) and the interior of the lifting block (803) are both rotatably connected with a transmission rod (805), the second driving device (9) comprises a bracket (901) and a fixing plate (902), the bracket (901) is fixedly mounted on the top of the five-way seat (3), a motor (903) is fixedly mounted on the bottom of the bracket (901), a rotating shaft (904) is fixedly mounted on the bottom of the motor (903) through a coupling, a gear (905) is fixedly mounted on one end of the rotating shaft (904), the fixing plate (902) is fixedly mounted on the surface of the two second air exhaust branch pipes (6), and a toothed plate (906) meshing with the gear (905) is fixedly mounted on one side of the fixing plate (902).

2. A coal mine ventilation and dust removal mechanism according to claim 1, characterized in that: The width of the groove (804) is the same as the width of the transmission rod (805), and a limit plate (10) is fixedly mounted on one end of the connecting rod (802).

3. A coal mine ventilation and dust removal mechanism according to claim 2, characterized in that: The shape of the bracket (901) is U-shaped, the length of the tooth plate (906) is greater than the radius of the support plate (7), and the length of the tooth plate (906) is less than half the length of the filter box (1).

4. A coal mine ventilation and dust removal mechanism according to claim 3, characterized in that: A support frame (11) is fixedly connected to the bottom of the second exhaust branch pipe (6); the support frame (11) is L-shaped, and one end of the support frame (11) is inserted into the interior of the support plate (7).

5. A coal mine ventilation and dust removal mechanism according to claim 4, characterized in that: A ball bearing is provided at the bottom of the tooth plate (906), and the ball bearing is tangent to the top of the five-way seat (3).

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