Mining automatic air door opening and closing device
By designing an automatic mining damper opening and closing device driven by rack and rack and servo motor, the problem of small opening angle of the existing damper is solved, and the complete opening of the damper is achieved, which facilitates large equipment to enter and exit the mine channel and improves operation convenience and safety.
Patent Information
- Application Number
- CN202421291678.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The opening angle of the existing mining damper opening and closing device is small, making it difficult to meet the needs of larger equipment entering and exiting the mine duct.
An automatic mining damper opening and closing device is designed. By setting it on the mounting frame at the end of the mine channel, the movable door is driven to move in the direction by using gear racks to achieve complete opening and closing of the damper. The device includes an upper rack and a lower rack, which drives the movable door movement through a servo motor, and automatically opens and closes through an infrared sensor and a controller.
It realizes the complete opening of the damper, which facilitates large-scale equipment entering and exiting the mine duct. At the same time, the structure is simple and the use method is convenient, ensuring the smooth movement and safe operation of the damper.
Smart Images
Figure CN222457494U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mine equipment and relates to an automatic air door opening and closing device for mines. Background Art
[0002] The damper is an important facility in the underground ventilation system of a mine. Its main function is to block the wind flow or adjust the air volume to prevent wind short circuit. At the same time, it can ensure the normal operation of pedestrians and vehicles. The situation in the mine is complicated. If the damper is opened but not closed in time, it will affect the underground ventilation. In serious cases, it may even cause hidden dangers of underground accidents or even accidents. Most of the dampers used in underground mines need to be opened manually when vehicles and personnel pass through. The utility model patent with patent number 2017207691476 discloses "a damper opening and closing device for mine tunnels". It controls the opening and closing of the damper through a hydraulic cylinder. However, in this way, the opening angle of the damper is small, which may cause inconvenience when some larger equipment enters and exits the mine tunnel. Utility Model Content
[0003] The purpose of the utility model is to provide an automatic air door opening and closing device for mining, in view of the problem that the air door opening angle of the existing air door opening and closing device in the background technology is small.
[0004] To this end, the utility model adopts the following technical solutions:
[0005] A mine automatic damper opening and closing device comprises a mounting frame arranged at the end of a mine tunnel, a movable door is arranged at the mounting frame, and the movable door can move along the length direction of the mounting frame, an upper rack and a lower gear bar are fixed to one side of the movable door along the length direction of the mounting frame, and the upper rack and the lower gear bar are arranged horizontally, and a driving member is arranged on the mounting frame, and the driving member comprises a bracket, a first gear meshed with the upper rack is arranged on the bracket, a second gear meshed with the first gear and the lower rack is arranged on one side of the first gear, the first gear is connected to a motor for driving the first gear to rotate, the motor is fixed on the bracket, the motor is connected to a controller, an infrared sensor is arranged on the mounting frame, and the infrared sensor is connected to the controller.
[0006] Furthermore, the mounting frame is provided with a first proximity switch and a second proximity switch, the first proximity switch and the second proximity switch are respectively connected to the controller, and the movable door is provided with a trigger rod.
[0007] Furthermore, an upper slide groove is provided at the top of the mounting frame along the length direction of the mounting frame, and a lower slide groove is provided at the bottom parallel to the upper slide groove. The top end of the movable door is located in the upper slide groove, and the bottom end is located in the lower slide groove.
[0008] Furthermore, the upper slide groove is arranged horizontally.
[0009] Furthermore, the motor is a servo motor.
[0010] The beneficial effects of the utility model are: the movable door is driven to move in a direction by a gear rack to realize opening and closing of the movable door, so that the movable door can be fully opened, which is convenient for large equipment to enter and exit the mine tunnel; an upper rack and a lower rack are arranged, and the movable door is driven to move by the two racks, and the force is evenly distributed, which can make the movable door move more smoothly; the structure is simple and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 This is the control principle diagram of the utility model;
[0013] In the figure, 1-mounting frame, 2-movable door, 3-upper slide groove, 4-lower slide groove, 5-upper rack, 6-lower rack, 7-driving member, 701-bracket, 702-first gear, 703-second gear, 704-motor, 8-controller, 9-infrared sensor, 10-first proximity switch, 11-second proximity switch, 12-trigger rod. DETAILED DESCRIPTION
[0014] The utility model is described in detail below with reference to the accompanying drawings:
[0015] like Figure 1 and 2As shown, an automatic air door opening and closing device for a mine comprises a mounting frame 1 arranged at the end of a mine tunnel, a movable door 2 is arranged on the mounting frame 1, and the movable door 2 can move along the length direction of the mounting frame 1. Specifically, an upper slide groove 3 arranged horizontally is arranged at the top of the mounting frame 1 along the length direction of the mounting frame 1, and a lower slide groove 4 arranged parallel to the upper slide groove 3 is arranged at the bottom. The top end of the movable door 2 is located in the upper slide groove 3, and the bottom end is located in the lower slide groove 4. The upper slide groove 3 and the lower slide groove 4 can be used to limit that one side of the movable door 2 moves along the mounting frame 1. An upper rack 5 and a lower gear bar 6 are fixed in the length direction, and the upper rack 5 and the lower gear bar 6 are both arranged horizontally. A driving member 7 is provided on the mounting frame 1, and the driving member 7 can drive the upper rack 5 and the lower gear bar 6 to move along the length direction of the mounting frame 1, so that the movable door 2 is opened or closed. The driving member 7 includes a bracket 701, and the bracket 701 is provided with a first gear 702 meshing with the upper rack 5. The first gear 702 is located at the lower side of the upper rack 5, and the lower side of the first gear 702 is provided with a gear meshing with the first gear 702 and the lower rack 6, the second gear 703 is located on the upper side of the lower rack 6, that is, the first gear 702 and the second gear 703 are located between the upper rack 5 and the lower gear bar 6, the transmission ratio of the first gear 702 and the second gear 703 is 1:1, the first gear 5 is connected to a motor 704 for driving the first gear 4 to rotate, the motor 704 is a servo motor, the motor 704 is fixed on the bracket 701, the motor 704 is connected to a controller 8, the controller 8 can adopt the existing conventional LC controller, the controller 8 can control the motor 704 to perform operations such as forward and reverse rotation, an infrared sensor 9 is provided on the mounting frame 1, the infrared sensor 9 is connected to the controller 8, the infrared sensor 9 adopts the existing conventional infrared sensor for automatic doors, the infrared sensor 9 is used to detect whether there are people or objects near the movable door 2, when a person or object passes by, the infrared sensor 9 can send a signal to the controller 8, the controller 8 controls the motor 704 to start so that the movable door 2 is automatically opened, when the person or object is away from the movable door 2, the controller 8 controls the movable door 2 to close automatically.
[0016] In order to accurately control the displacement of the movable door 2, a first proximity switch 10 and a second proximity switch 11 are provided on the mounting frame 1, and the first proximity switch 10 and the second proximity switch 11 are respectively connected to the controller 8. A trigger rod 12 is provided on the movable door 2, and the first proximity switch 10 corresponds to the mine tunnel. When the movable door 2 is closed, the first proximity switch 10 can sense the trigger rod 12, and when the movable door 2 is fully opened, the second proximity switch 11 can sense the trigger rod 12. The first proximity switch 10 and the second proximity switch 11 are arranged to accurately control the displacement of the movable door 2. When the movable door 2 is opened to the set position, the trigger rod 12 is sensed by the second proximity switch 11, and the second proximity switch 11 sends a signal to the controller 8. The controller 8 controls the motor 704 to stop, so that the movable door 2 stops moving to prevent excessive displacement and loss of equipment.
[0017] The usage of the utility model is as follows:
[0018] When personnel need to enter or exit the mine tunnel and move to the vicinity of the movable door 2, the infrared sensor 9 sends a signal to the controller 8, and the controller 8 controls the motor 704 to start, and the motor 704 drives the first gear 702 to rotate, and the first gear 702 drives the second gear 703 to rotate. Through the rotation of the first gear 4 and the second gear 703, the upper rack 5 and the lower gear bar 6 can be driven to move in the horizontal direction. Through the movement of the upper rack 5 and the lower gear bar 6, the movable door 2 is driven to move in the upper slide groove 3 and then in the slide groove 4 to open the movable door 2. When the trigger rod 12 on the movable door 2 senses the second proximity switch 11, the second proximity switch 11 sends a signal to the controller 8. When a person leaves through the movable door 2, the infrared sensor 9 sends a signal to the controller 8, and the controller 8 controls the motor 704 to rotate in the opposite direction, driving the first gear 702 and the second gear 703 to rotate in the opposite direction, so that the upper rack 5 and the lower gear bar 6 move in the opposite direction in the horizontal direction, thereby driving the movable door 2 to move in the opposite direction in the upper slide groove 3 and then in the lower slide groove 4 to close the movable door 2. When the trigger rod 12 on the movable door 2 senses the first proximity switch 10, the first proximity switch 10 sends a signal to the controller 8, and the controller 8 controls the motor 704 to stop, thereby completing the closing of the movable door 2.
[0019] The device can realize automatic opening and closing of the mine air door, and the operation method is simple and convenient. The air door can be fully opened, which is convenient for larger equipment to enter and exit the mine.
Claims
1. A mine automatic air door opening and closing device, characterized in that: The invention comprises a mounting frame (1) arranged at the end of a mine tunnel, wherein a movable door (2) is arranged at the mounting frame (1), wherein the movable door (2) can move along the length direction of the mounting frame (1), and an upper rack (5) and a lower rack (6) are fixed to one side of the movable door (2) along the length direction of the mounting frame (1), wherein the upper rack (5) and the lower rack (6) are arranged horizontally, and a driving member (7) is arranged on the mounting frame (1), wherein the driving member (7) comprises a bracket (701), and wherein the bracket (701) is provided with a gear meshing with the upper rack (5). A first gear (702); a second gear (703) meshing with the first gear (702) and a lower rack (6) is provided on the lower side of the first gear (702); the first gear (702) is connected to a motor (704) for driving the first gear (702) to rotate; the motor (704) is fixed to a bracket (701); the motor (704) is connected to a controller (8); an infrared sensor (9) is provided on the mounting frame (1); the infrared sensor (9) is connected to the controller (8).
2. The automatic air door opening and closing device for mining according to claim 1 is characterized in that: The mounting frame (1) is provided with a first proximity switch (10) and a second proximity switch (11), the first proximity switch (10) and the second proximity switch (11) are respectively connected to a controller (8), and the movable door (2) is provided with a trigger rod (12).
3. The automatic air door opening and closing device for mining according to claim 1 is characterized in that: The top of the mounting frame (1) is provided with an upper slide groove (3) along the length direction of the mounting frame (1), and the bottom is provided with a lower slide groove (4) arranged parallel to the upper slide groove (3); the top end of the movable door (2) is located in the upper slide groove (3), and the bottom end is located in the lower slide groove (4).
4. The automatic air door opening and closing device for mining according to claim 3 is characterized in that: The upper slide groove (3) is arranged horizontally.
5. The automatic air door opening and closing device for mining according to claim 1 is characterized in that: The motor (704) is a servo motor (704).