Mining automatic air door driving device

Abstract

The embodiment of the invention provides a mining automatic air door driving device. The mining automatic air door driving device comprises a door frame, a first door leaf, a second door leaf, a connecting rod and a power system, one side of each of the first door leaf and the second door leaf in the width direction can be connected with the door frame in a relative opening and closing mode through a pivot shaft, and the first door leaf is provided with a first hinge position point; the second door leaf is provided with a second hinging site; the two ends of the connecting rod are hinged to the first hinge position point and the second hinge position point respectively. The power system comprises a machine shell and a transmission gear assembly arranged in the machine shell, one part of the transmission gear assembly is connected with the first door leaf, and the other part of the transmission gear assembly is connected with the door frame. Therefore, the mining automatic air door driving device has the advantages of being good in reliability and universality.

Description

Technical Field

[0001] The invention relates to the technical field of mining, and in particular to an automatic air door driving device for mining. Background Art

[0002] The underground air door of a coal mine is an important device for controlling mine ventilation. It is mainly used to regulate the air flow underground. It plays a very critical role in the ventilation system of the mine. It can coordinate the air volume in various areas, promote air circulation and gas diffusion in the mine, thereby effectively controlling the generation and distribution of harmful gases and ensuring the life safety of miners.

[0003] Depends on a compressed air source. When the air source pressure fluctuates and is low, there is a problem that the door cannot be opened. When the air source is interrupted during a disaster, the damper cannot be opened. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides an automatic air door driving device for a mine. The automatic air door driving device for a mine has the advantages of good reliability and versatility.

[0005] The automatic air door driving device for mining according to the embodiment of the present invention comprises a door frame, a first door leaf, a second door leaf, a connecting rod and a power system.

[0006] One side in the width direction of each of the first door leaf and the second door leaf is connected to the door frame via a pivot axis so as to be relatively openable and closeable, the first door leaf having a first hinge point, and the second door leaf having a second hinge point; the two ends of the connecting rod are respectively hinged to the first hinge point and the second hinge point so as to form a connecting rod linkage structure to drive the first door leaf and the second door leaf to open and close in a linked manner; the power system includes a casing and a transmission gear assembly arranged in the casing, a part of the transmission gear assembly is connected to the first door leaf, and another part of the transmission gear assembly is connected to the door frame.

[0007] The automatic mine damper driving device of the embodiment of the present invention drives the first door leaf and the second door leaf to open and close in a linked manner by means of a connecting rod and a hinged connection between the first door leaf and the second door leaf, and compared with a track-type structure, the structure using the connecting rod is not affected by falling rocks on the track. Therefore, the automatic mine damper driving device helps to improve the reliability of the damper and keep the door leaves (the first door leaf and the second door leaf) in a balanced state when opening and closing.

[0008] At the same time, the use of a connecting rod linkage structure can also help realize the first door leaf and the second door leaf in the open, closed and the position between the two, which can help adjust the opening and closing area of ​​the damper to match the opening and closing angles of the door leaves required for vehicles and pedestrians to pass through, and when the damper is opened or closed, it can play a good linkage. Therefore, the convenience of using the automatic damper for mining is improved.

[0009] In addition, the power system adopts a transmission gear assembly, which not only occupies a relatively small space compared to the structure using a pneumatic rod or a hydraulic rod, but the transmission gear system can provide higher position control accuracy and good operating stability. Therefore, the mine automatic damper drive device has the advantages of small equipment, high operating accuracy and good stability.

[0010] Therefore, the automatic air door driving device for mining of the present invention has the advantages of good reliability and versatility.

[0011] In some embodiments, the transmission gear assembly includes a positioning plate, a servo motor, a driving tooth and a gear set arranged in the casing, the driving tooth is sleeved on the output shaft of the servo motor, the housing portion of the servo motor is connected to the door frame, the gear set is sleeved on the pivot shaft, and the gear set is meshed with the driving tooth, the transmission gear assembly also includes a positioning plate, the gear set includes a first gear set and a second gear set, the first gear set and the second gear set are both rotatably arranged on the positioning plate, the fixed shaft of the first gear set is connected to the pivot shaft, the first gear set and the second gear set are meshed, the driving tooth is meshed with the first gear set, and the first gear set is meshed with the second gear set.

[0012] In some embodiments, the first gear set includes a first tooth and a second tooth coaxially arranged on both sides of the positioning plate, the second gear set includes a third tooth and a fourth tooth coaxially arranged on both sides of the positioning plate, the first tooth is meshed with the third tooth, the second tooth is meshed with the fourth tooth, and the first tooth is meshed with the driving tooth.

[0013] In some embodiments, the automatic damper drive device for mining also includes an electronic control system, which includes an electronic control box, a position sensor, a pressure sensor and a temperature sensor. The position sensor is used to monitor the state of the damper in real time, the pressure sensor is used to monitor the pressure of the damper airflow in real time, and the temperature sensor is used to monitor the damper temperature information in real time. The position sensor, the pressure sensor and the temperature sensor respond to the signal of the electronic control box to control the movement of the damper according to a preset logic.

[0014] In some embodiments, the automatic air door driving device for mining also includes a torsion spring, and the door frame has an installation cavity on each side in the width direction thereof, the pivot shaft is inserted into the installation cavity, and the torsion spring is mounted on the pivot shaft, one end of the torsion spring is fixedly connected to the door frame, and the other end of the torsion spring is fixedly connected to the pivot shaft.

[0015] In some embodiments, when the damper is in a closed state and an open state, the first hinge point and the second hinge point on the first hinge seat are hingedly located on the same side of the damper.

[0016] In some embodiments, the first door leaf includes a first door leaf body and a first hinge seat arranged on the first door leaf body, the first hinge seat extends outwardly in the direction of the first door leaf body, the first hinge seat has the first hinge point, and one end of the connecting rod is hinged to the first hinge seat.

[0017] In some embodiments, the first hinge seat is generally L-shaped, one end of the first hinge seat is connected to the first door leaf, the other end of the first hinge seat forms the first hinge seat and is hinged to the connecting rod, and when the damper is in an open and closed state, the first hinge point on the first hinge seat is located on the other side of the first door leaf.

[0018] In some embodiments, the second door leaf includes a second door leaf body and a second hinge seat arranged on the second door leaf body, the first hinge seat extends outward in the direction of the second door leaf body, the second hinge seat has the second hinge point, and one end of the connecting rod is hinged to the second hinge seat.

[0019] In some embodiments, the first door leaf and the second door leaf are arranged on the door frame to open and close in opposite directions.

[0020] In some embodiments, the door frame is a metal door frame, the door frame includes a crossbeam and a column, the crossbeam and the column enclose a frame, and the frame can be installed on the tunnel wall;

[0021] In some embodiments, the automatic air door driving device for mining further comprises a seal, and the seal is arranged on the outer peripheral wall of the first door leaf and the second door leaf. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of an automatic air door driving device for mining according to an embodiment of the present invention.

[0023] Figure 2 It is an exploded view of a three-dimensional diagram of a transmission gear assembly according to an embodiment of the present invention.

[0024] Figure 3 It is an exploded view of another stereoscopic view of a transmission gear assembly according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the cooperation between the torsion spring structure and the door frame according to an embodiment of the present invention.

[0026] Figure 5 It is a top view of the automatic air door driving device for mining of the present invention, wherein the air door is in a closed state.

[0027] Figure 6 It is a top view of the automatic air door driving device for mining of the present invention, wherein the air door is in a semi-closed state.

[0028] Figure 7 It is a top view of the automatic air door driving device for mining of the present invention, wherein the air door is in an open state.

[0029] Reference numerals:

[0030] Door frame 1;

[0031] First door leaf 2; first door leaf body 21; first hinge seat 22;

[0032] The second door leaf 3; the second door leaf body 31; the second hinge seat 32;

[0033] Connecting rod 4;

[0034] Housing 5;

[0035] Transmission gear assembly 6; positioning plate 61; driving gear 62;

[0036] Gear set 63;

[0037] First gear set 631; first tooth 6311; second tooth 6312;

[0038] The second gear set 632; the third gear 6321; the fourth gear 6322;

[0039] Torsion spring 7;

[0040] Seal 8. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0042] Reference below Figure 1-Figure 7 The automatic air door driving device for mining according to the embodiment of the present invention is described.

[0043] The automatic air door driving device for mining of the embodiment of the present invention comprises a door frame 1, a first door leaf 2, a second door leaf 3, a connecting rod 4 and a power system.

[0044] One side of each of the first door leaf 2 and the second door leaf 3 in the width direction is connected to the door frame 1 through a pivot axis so as to be relatively openable and closable, the first door leaf 2 has a first hinge point, and the second door leaf 3 has a second hinge point; both ends of the connecting rod 4 are respectively hinged to the first hinge point and the second hinge point, so as to form a connecting rod linkage structure to drive the first door leaf 2 and the second door leaf 3 to open and close in linkage; the power system includes a casing 5 and a transmission gear assembly 6 arranged in the casing 5, a part of the transmission gear assembly 6 is connected to the first door leaf 2, and the other part of the transmission gear assembly 6 is connected to the door frame 1.

[0045] The automatic mine damper driving device of the embodiment of the present invention drives the first door leaf 2 and the second door leaf 3 to open and close in a linked manner by hingedly connecting the connecting rod 4 and the first door leaf 2 and the second door leaf 3. Compared with the track-type structure, the structure using the connecting rod 4 is not affected by falling rocks on the track. Therefore, the automatic mine damper driving device helps to improve the reliability of the damper and keep the door leaves (the first door leaf 2 and the second door leaf 3) in a balanced state when opening and closing.

[0046] At the same time, the use of the connecting rod linkage structure can also help realize the first door leaf 2 and the second door leaf 3 in the open, closed and the position between the two, and then help to adjust the opening and closing area of ​​the damper to match the opening and closing angle of the door leaf required for vehicles and pedestrians to pass through, and when the damper is opened or closed, it can play a good linkage. Therefore, the convenience of using the automatic damper for mining is improved.

[0047] In addition, the power system adopts the transmission gear assembly 6, which not only occupies a relatively small space compared to the structure using the pneumatic rod or the hydraulic rod, but also the transmission gear system can provide higher position control accuracy and good operation stability. Therefore, the mining automatic damper driving device has the advantages of small equipment, high operation accuracy and good stability.

[0048] Therefore, the automatic air door driving device for mining of the present invention has the advantages of good reliability and versatility.

[0049] like Figure 2 and Figure 3As shown, the transmission gear assembly 6 includes a positioning plate 61, a servo motor, an active tooth 62 and a gear set 63 arranged in the casing 5, the active tooth 62 is sleeved on the output shaft of the servo motor, the active tooth 62 is connected to the door frame 1, the gear set 63 is sleeved on the pivot shaft, and the gear set 63 is meshed with the active tooth 62, the transmission gear assembly 6 also includes a positioning plate 61, the gear set 63 includes a first gear set 631 and a second gear set 632, the first gear set 631 and the second gear set 632 are both rotatably arranged on the positioning plate 61, the fixed shaft of the first gear set 631 is connected to the pivot shaft, the first gear set 631 and the second gear set 632 are meshed, the active tooth 62 is meshed with the first gear set 631, and the first gear set 631 is meshed with the second gear set 632.

[0050] The automatic damper driving device for mining in the embodiment of the present invention is configured such that the transmission gear assembly 6 is divided into a positioning plate 61, an active tooth 62 and a gear set 63, and the gear set 63 is divided into a first gear set 631 and a second gear set 632. The first gear set 631 and the second gear set 632 are both rotatably arranged on the positioning plate 61, which helps to reduce the overall volume of the reduction mechanism.

[0051] Optionally, the diameter of the driving tooth 62 is smaller than the diameter of the gear set 63 .

[0052] like Figure 2 and Figure 3 As shown, the first gear set 631 includes a first tooth 6311 and a second tooth 6312 coaxially arranged on both sides of the positioning plate 61, and the second gear set 632 includes a third tooth 6321 and a fourth tooth 6322 coaxially arranged on both sides of the positioning plate 61, the first tooth 6311 is meshed with the third tooth 6321, the second tooth 6312 is meshed with the fourth tooth 6322, and the first tooth 6311 is meshed with the active tooth 62.

[0053] The automatic damper driving device for mining of the embodiment of the present invention comprises a first gear set 631 including a first tooth 6311 and a second tooth 6312 coaxially arranged on both sides of the positioning plate 61, and a second gear set 632 including a third tooth 6321 and a fourth tooth 6322 coaxially arranged on both sides of the positioning plate 61. It can be understood that the first gear set 631 is arranged in double layers from top to bottom, and the second gear set 632 is arranged in double layers from top to bottom. While ensuring the transmission efficiency, the overall volume of the reduction mechanism can be effectively reduced, and the output torque of the transmission gear assembly is guaranteed.

[0054] The automatic mine damper driving device of the embodiment of the present invention also includes an electronic control system, which includes an electronic control box, a position sensor, a pressure sensor and a temperature sensor. The position sensor is used to monitor the state of the damper in real time, the pressure sensor is used to monitor the pressure of the damper airflow in real time, and the temperature sensor is used to monitor the damper temperature information in real time. The position sensor, pressure sensor and temperature sensor respond to the signal of the electronic control box to control the movement of the damper according to a preset logic.

[0055] Optionally, the pneumatic control box includes an electric control box, a position sensor, a pressure sensor and a temperature sensor. When the torque suddenly increases, it is determined that a vehicle or person is clamped, and the connecting rod linkage structure will immediately run in the opposite direction, which plays a role in protecting the damper itself and passing vehicles and pedestrians. Therefore, the automatic damper driving device for mining has the advantage of high safety in use.

[0056] like Figure 4 As shown, the automatic damper driving device for mining in the embodiment of the present invention further includes a torsion spring 7. The door frame 1 has an installation cavity on each side in the width direction thereof. The pivot shaft is inserted into the installation cavity. The torsion spring 7 is sleeved on the pivot shaft. One end of the torsion spring 7 is fixedly connected to the door frame 1, and the other end of the torsion spring 7 is fixedly connected to the pivot shaft.

[0057] The automatic mine damper driving device of the embodiment of the present invention reserves installation space on the upper and lower sides of the door frame 1, the pivot shaft penetrates into the installation space, and is sleeved with a torsion spring 7 structure, one end of the torsion spring 7 is fixedly connected to the door frame 1, and the other end is fixedly connected to the pivot shaft; when the damper is in a closed state, the torsion spring 7 is in a force storage state, and the unloading direction of the torsion spring 7 is consistent with the opening direction of the damper, that is, when the servo power system opens the damper, the elastic force of the torsion spring 7 acts on the damper synchronously, assisting the servo power system to overcome the wind pressure in the lane to open the damper, and reducing the influence of the resistance encountered by the servo power system when working. When the servo power system closes the damper, the torsion spring 7 contracts and stores force, and the elastic force of the torsion spring 7 offsets part of the wind flow pressure, so that the servo power system can close the damper more smoothly.

[0058] When the damper is in a closed state and an open state, the first hinge point and the second hinge point on the first hinge seat 22 are hingedly located on the same side of the damper.

[0059] The automatic mine damper driving device of the embodiment of the present invention can avoid the problem of interference between the connecting rod 4 and the door frame 1 by hingedly connecting the first hinge point and the second hinge point on the first hinge seat 22 on the same side of the damper.

[0060] like Figure 1 , Figures 5 to 7As shown, the first door leaf 2 includes a first door leaf body 21 and a first hinge seat 22 arranged on the first door leaf body 21. The first hinge seat 22 extends outward from the first door leaf body 21. The first hinge seat 22 has a first hinge point, and one end of the connecting rod 4 is hinged to the first hinge seat 22.

[0061] The automatic mine damper driving device of the present invention includes a first door leaf body 21 and a first hinge seat 22 arranged on the first door leaf body 21 through a door frame 1, and the first hinge seat 22 extends in a direction protruding outward from the first door leaf body 21, which not only facilitates normal cooperation with the connecting rod 4, but also avoids interference between the connecting rod 4 and the door frame 1. Therefore, the automatic mine damper driving device of the present invention has high installation convenience and avoids interference during the process of opening and closing the door.

[0062] like Figure 1 , Figures 5 to 7 As shown, the first hinge seat 22 is generally L-shaped, one end of the first hinge seat 22 is connected to the first door leaf 2, and the other end of the first hinge seat 22 forms the first hinge seat 22 and is hinged to the connecting rod 4. When the damper is in the open and closed states, the first hinge point on the first hinge seat 22 is located on the other side of the first door leaf 2.

[0063] The automatic mine damper driving device of the present invention is helpful to reduce the volume of the first hinge seat 22 by setting the first hinge seat 22 to be substantially L-shaped. The automatic mine damper driving device of the present invention is located on the other side of the first door leaf 2 when the damper is in the open and closed states by the first hinge point on the first hinge seat 22, thereby avoiding the problem of interference between the connecting rod 4 and the door frame 1 when the damper is in the open and closed states during the state transition process.

[0064] Specifically, the first hinge point is arranged in a region of the first hinge seat 22 close to the outer side.

[0065] like Figure 1 , Figures 5 to 7 As shown, the second door leaf 3 includes a second door leaf body 31 and a second hinge seat 32 arranged on the second door leaf body 31, the first hinge seat 22 extends outwardly in the direction of the second door leaf body 31, the second hinge seat 32 has a second hinge point, and one end of the connecting rod 4 is hinged to the second hinge seat 32.

[0066] The automatic air door driving device for mining of the present invention includes a second door leaf body 31 and a second hinge seat 32 arranged on the second door leaf body 31 through the door frame 1, and the second hinge seat 32 extends in the direction of protruding outward from the second door leaf body 31, which not only facilitates normal cooperation with the connecting rod 4, but also avoids the problem of interference between the connecting rod 4 and the door frame 1. Therefore, the automatic air door driving device for mining of the present invention has high installation convenience and avoids the problem of interference in the process of opening and closing the door.

[0067] like Figure 7 As shown, the first door leaf 2 and the second door leaf 3 are arranged on the door frame 1 to open and close in opposite directions.

[0068] The automatic mine damper driving device of the present invention helps to simplify the setting of the connecting rod linkage structure through the first door leaf 2 and the second door leaf 3. Specifically, the connecting rod linkage structure includes a connecting rod 4 which can be a single rod structure, and the corresponding damper can be opened and closed without the need for additional auxiliary hinged rods.

[0069] like Figure 1 As shown, the door frame 1 is a metal door frame, and the door frame 11 includes a crossbeam and a column, and the crossbeam and the column enclose a frame, and the frame can be installed on the tunnel wall. Therefore, the automatic air door driving device for mining has the advantage of good structural stability.

[0070] Optionally, the door frame 1 is made of high-strength steel to ensure the firmness and durability of the door frame.

[0071] Furthermore, the crossbeams and columns are connected by welding or bolts to form a stable frame, which not only supports the door leaf, but also fixes the position of the damper, ensuring that the damper can be firmly installed on the tunnel wall.

[0072] Furthermore, the first door leaf 2 and the second door leaf 3 also often use steel as the main frame, and the surface is covered with wear-resistant and corrosion-resistant materials, such as steel plates or special alloys. The first door leaf 2 and the second door leaf 3 can be composed of multiple panels, and the panels are connected to the door frame through hinges to achieve opening and closing actions. The door leaf is the main part of blocking the wind flow. It can effectively isolate the wind flow when closed to prevent the spread of harmful gases. The opening and closing actions of the door leaf need to be flexible and reliable to ensure that miners can pass smoothly.

[0073] The automatic air door driving device for mines of the present invention further comprises a sealing member 8, which is arranged on the outer peripheral wall of the first door leaf 2 and the second door leaf 3. Thus, the automatic air door driving device for mines has further improved sealing performance and wear resistance.

[0074] Optionally, the sealing member 8 may be a rubber product and a silicone strip, so as to ensure the excellent sealing and wear resistance of the automatic air door driving device for mining.

[0075] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0079] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0080] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A mining automatic damper driving device, characterized in that: include: A door frame, a first door leaf and a second door leaf, wherein one side of each of the first door leaf and the second door leaf in a width direction is connected to the door frame via a pivot axis so as to be relatively openable and closable, the first door leaf having a first hinge point, and the second door leaf having a second hinge point; A connecting rod, two ends of which are respectively hinged to the first hinge point and the second hinge point, so as to form a connecting rod linkage structure to drive the first door leaf and the second door leaf to open and close in a coordinated manner; A power system includes a casing and a transmission gear assembly arranged in the casing, a part of the transmission gear assembly is connected to the first door leaf, and another part of the transmission gear assembly is connected to the door frame.

2. The automatic air door driving device for mining according to claim 1, characterized in that: The transmission gear assembly includes a positioning plate, a servo motor, a driving tooth and a gear set arranged in the casing, the driving tooth is sleeved on the output shaft of the servo motor, the housing portion of the servo motor is connected to the door frame, the gear set is sleeved on the pivot shaft, and the gear set is meshed with the driving tooth, the transmission gear assembly also includes a positioning plate, the gear set includes a first gear set and a second gear set, the first gear set and the second gear set are both rotatably arranged on the positioning plate, the fixed shaft of the first gear set is connected to the pivot shaft, the first gear set and the second gear set are meshed, the driving tooth is meshed with the first gear set, and the first gear set is meshed with the second gear set.

3. The automatic air door driving device for mining according to claim 2, characterized in that: The first gear set includes a first tooth and a second tooth coaxially arranged on both sides of the positioning plate, the second gear set includes a third tooth and a fourth tooth coaxially arranged on both sides of the positioning plate, the first tooth meshes with the third tooth, the second tooth meshes with the fourth tooth, and the first tooth meshes with the driving tooth; And / or, it also includes an electronic control system, which includes an electronic control box, a position sensor, a pressure sensor and a temperature sensor, the position sensor is used to monitor the state of the damper in real time, the pressure sensor is used to monitor the pressure of the damper airflow in real time, and the temperature sensor is used to monitor the damper temperature information in real time, and the position sensor, the pressure sensor and the temperature sensor respond to the signal of the electronic control box to control the movement of the damper according to a preset logic.

4. The automatic air door driving device for mining according to claim 1, characterized in that: It also includes a torsion spring. The door frame has an installation cavity on each side in the width direction. The pivot shaft is inserted into the installation cavity. The torsion spring is sleeved on the pivot shaft. One end of the torsion spring is fixedly connected to the door frame, and the other end of the torsion spring is fixedly connected to the pivot shaft.

5. The automatic air door driving device for mining according to claim 1, characterized in that: When the damper is in a closed state and an open state, the first hinge point and the second hinge point on the first hinge seat are hingedly located on the same side of the damper.

6. The automatic air door driving device for mining according to claim 1, characterized in that: The first door leaf includes a first door leaf body and a first hinge seat arranged on the first door leaf body, the first hinge seat extends outwardly in the direction of the first door leaf body, the first hinge seat has the first hinge point, and one end of the connecting rod is hinged to the first hinge seat.

7. The automatic air door driving device for mining according to claim 3, characterized in that: The first hinge seat is generally L-shaped, one end of the first hinge seat is connected to the first door leaf, the other end of the first hinge seat forms the first hinge seat and is hinged to the connecting rod, and when the damper is in an open and closed state, the first hinge point on the first hinge seat is located on the other side of the first door leaf.

8. The automatic air door driving device for mining according to claim 1, characterized in that: The second door leaf includes a second door leaf body and a second hinge seat arranged on the second door leaf body, the first hinge seat extends outwardly in the direction of the second door leaf body, the second hinge seat has the second hinge point, and one end of the connecting rod is hinged to the second hinge seat.

9. The automatic air door driving device for mining according to claim 1, characterized in that: The first door leaf and the second door leaf are arranged on the door frame to open and close in opposite directions.

10. The automatic air door driving device for mining according to claim 1, characterized in that: The door frame is a metal door frame, and the door frame includes a crossbeam and a column, and the crossbeam and the column enclose a frame, and the frame can be installed on the tunnel wall; And / or, it also includes a seal, which is arranged on the outer peripheral wall of the first door leaf and the second door leaf.

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