A multi-parameter dynamic control device for underground coal mine ventilation

Abstract

The utility model discloses a kind of coal mine underground ventilation multi-parameter dynamic regulation and control devices, applied in coal mine underground ventilation multi-parameter dynamic regulation and control technical field, including air window, the inside of the air window is transversely rotatably connected with rotating rod, the surface of the rotating rod is fixedly connected with metal sheet, the right side of the rotating rod is penetrated to the right side of air window, the right side of the rotating rod is provided with linkage assembly, the linkage assembly includes disc, the disc is fixedly connected in the right side of rotating rod, the right side of the disc is fixedly connected with guide rod, air window utility model passes through with servo motor linkage design using controller, controller can receive gas concentration, wind speed and so on multiple parameter detection signal in real time underground, according to preset threshold value automatically adjust the speed, steering and start-stop of servo motor, realize the unmanned, dynamic precision regulation and control of ventilation parameter, break through the hysteresis and safety risk of traditional manual control.

Description

Technical Field

[0001] The utility model of the ventilation window belongs to the field of multi-parameter dynamic control technology of underground ventilation in coal mines, and specifically relates to a multi-parameter dynamic control device for underground ventilation in coal mines. Background Technology

[0002] A coal mine shaft refers to an underground engineering system built for mining underground coal resources. It is a general term for the passage and working space connecting the surface and underground coal seams. Unlike open-pit coal mines (which directly extract coal from the surface by stripping away the overburden), it is the core engineering of underground mining. It mainly consists of structures such as shafts, roadways, and chambers, and is used to realize functions such as coal mining, transportation, ventilation, and drainage.

[0003] In the relevant technologies, the operation of underground ventilation systems in coal mines currently relies on ventilation windows to regulate the intake airflow. The current regulation mechanism is mainly based on data collection by various sensors installed inside the mine. Then, workers receive the relevant monitoring information and manually operate the ventilation windows. This manual operation method has obvious shortcomings in practical applications, mainly manifested in the long adjustment process, high manpower consumption, and difficulty in achieving a fast and accurate dynamic response. Utility Model Content

[0004] The purpose of this utility model of the ventilation window is to provide a multi-parameter dynamic control device for underground ventilation in coal mines. Its advantage is that it solves the problem that in current underground ventilation systems in coal mines, ventilation windows are needed to adjust the air intake, and adjustments are made manually based on information received from inside the mine. This manual adjustment is time-consuming and labor-intensive, and cannot be quickly and automatically adjusted.

[0005] The above-mentioned technical objective of the wind window utility model is achieved through the following technical solution: a multi-parameter dynamic control device for ventilation in coal mines, including a wind window, wherein a rotating rod is laterally rotatably connected inside the wind window, a metal sheet is fixedly connected to the surface of the rotating rod, the right side of the rotating rod extends through to the right side of the wind window, and a linkage component is provided on the right side of the rotating rod. The linkage component includes a disc, which is fixedly connected to the right side of the rotating rod. A guide rod is fixedly connected to the right side of the disc, and a transmission frame is sleeved on the surface of the guide rod. A transmission component is provided on the rear side of the transmission frame.

[0006] The windshield utility model is further configured such that the transmission component includes a movable plate, the movable plate is located on the rear side of the transmission frame, a round rod is fixedly connected to the rear side of the movable plate, the round rod is fixedly connected to the movable plate, a screw sleeve is fixedly connected to the rear side of the movable plate, a screw rod is threadedly connected to the rear side of the screw sleeve, a metal plate is vertically fixedly connected inside the windshield, a support frame is fixedly connected to the rear side of the metal plate, the support frame is rotatably connected to the screw rod, a worm gear is fixedly connected to the surface of the screw rod, a worm is meshed at the top of the worm gear, and a servo motor is fixedly installed on the right side of the worm rod.

[0007] The above technical solution involves the linkage of the moving plate, the round rod, and the transmission frame, which converts the rotational motion of the screw sleeve and the screw into linear motion, achieving efficient power transmission. The metal plate and support frame provide stable support for the screw, ensuring that the screw does not deviate during rotation and improving transmission stability. The worm gear and worm meshing transmission has the characteristics of precise transmission ratio and strong self-locking, which can prevent the metal plate from accidentally shifting due to underground vibration, ensuring stable ventilation parameters. The servo motor can accurately output power, and with the subsequent controller, it can realize the automated and refined control of ventilation parameters, meeting the dynamic adjustment needs of air volume and air speed under different working conditions in coal mines, reducing manual intervention, and improving control efficiency and safety.

[0008] The windshield utility model is further configured such that a stabilizing plate is rotatably connected to the left side of the worm gear, and the stabilizing plate is fixedly connected to the surface of the metal plate.

[0009] The above technical solution provides effective support to the left end of the worm gear through a stabilizing plate, preventing uneven force distribution and swaying at both ends due to the worm's long length or underground vibrations. This ensures that the worm and worm wheel maintain precise meshing, reduces transmission wear, improves the stability and reliability of power transmission, extends the worm's service life, prevents ventilation control interruptions due to transmission component failures, ensures the continuous and stable operation of the underground ventilation system in coal mines, and reduces safety risks.

[0010] The windshield utility model is further configured such that a bushing is rotatably connected to the surface of the guide rod, and the bushing is rotatably connected to the surface of the transmission frame.

[0011] The above technical solution reduces frictional resistance between the guide rod and the transmission frame by using bushings, making the guide rod slide or rotate more smoothly within the transmission frame, reducing the wear rate of components, extending the service life of the linkage components, reducing noise and jamming during operation, ensuring the continuity and smoothness of power transmission, adapting to the harsh working conditions of coal mines with high dust levels, and ensuring the long-term stable operation of the ventilation control device.

[0012] The windshield utility model is further configured such that a blocking ring is fixedly connected to the right side of the guide rod, and the number of blocking rings is several.

[0013] The above technical solution is adopted to precisely limit the sliding range of the transmission frame on the guide rod surface by using the blocking ring, preventing the transmission frame from falling off the right side of the guide rod due to underground vibration, power fluctuations, or excessive adjustment range. This avoids ventilation control interruption caused by failure of the linkage components, while ensuring that the transmission frame always moves within the effective stroke, ensuring the accuracy of the metal plate angle adjustment, preventing ventilation system failure caused by component detachment, and improving the safety and reliability of the device operation.

[0014] The windshield utility model is further configured such that a protective cover is vertically fixedly connected inside the windshield, and the protective cover is located on the outside of the disc.

[0015] The above technical solution isolates the disc and surrounding linkage components from other areas inside the ventilation window by using a protective cover. This effectively prevents impurities such as dust, slag, and moisture from coal mines from adhering to the surface of the components or entering the gaps. This avoids impurities affecting the rotational flexibility, causing component jamming or corrosion, ensuring the transmission efficiency of the linkage components, and preventing damage to the linkage components from falling objects or collisions underground. It also improves the adaptability of the device to the harsh underground environment, extends its service life, and ensures the stable operation of ventilation control.

[0016] The windshield utility model is further configured such that a controller is fixedly installed on the top of the servo motor, and the controller is electrically connected to the servo motor.

[0017] The above technical solution involves an electrical connection between the controller and the servo motor. This allows for real-time reception of detection signals such as methane concentration, wind speed, and air volume in the coal mine. Based on preset thresholds or actual ventilation requirements, the controller automatically adjusts the servo motor's operating speed, direction, and start / stop. This enables dynamic and automated control of multiple ventilation parameters, eliminating the need for manual operation by personnel on-site. This reduces the safety risks and labor intensity associated with manual intervention underground, while also improving the timeliness and accuracy of ventilation parameter adjustments. It enables rapid response to changes in underground working conditions and ensures that the working environment meets safety standards.

[0018] The windshield utility model is further configured such that a safety cover is fixedly connected to the rear side of the metal plate, and the safety cover is located outside the worm gear.

[0019] The above technical solution involves using a safety cover to enclose and protect core transmission components such as the worm gear and worm shaft. This not only prevents corrosion from underground dust, coal dust, and moisture, thus avoiding rust, jamming, or accelerated wear, but also ensures smooth operation and extended service life of the transmission components. Furthermore, it provides physical isolation, preventing workers from accidentally touching high-speed rotating components during equipment maintenance or inspection. It also prevents foreign objects such as coal slag from impacting the transmission components and causing malfunctions. This approach balances the safety and durability of the device, ensuring the long-term reliable operation of the underground ventilation control system in coal mines.

[0020] In summary, the utility model of the windshield has the following beneficial effects: 1. The utility model of the ventilation window adopts a controller and servo motor linkage design. The controller can receive multi-parameter detection signals such as underground gas concentration and wind speed in real time, and automatically adjust the speed, direction and start / stop of the servo motor according to the preset threshold, so as to realize unmanned, dynamic and precise control of ventilation parameters, and overcome the lag and safety risks of traditional manual control.

[0021] 2. The utility model of the windshield reduces the frictional resistance between the transmission frame and the guide rod through the bushing design on the surface of the guide rod, avoiding jamming, ensuring smooth power transmission, and extending the service life of the linkage components. The blocking ring on the right side of the guide rod precisely limits the sliding range of the transmission frame, preventing it from falling off due to vibration and power fluctuations, ensuring the continuity and accuracy of control. The stabilizing plate and support frame provide stable support for the worm gear and screw respectively, preventing the components from shaking or shifting due to underground vibration, ensuring precise transmission engagement, and reducing wear. The dual protection design of the protective cover and safety cover not only prevents impurities from corroding the core transmission and linkage components, but also forms physical isolation to prevent operators from accidentally touching high-speed rotating components, taking into account both the durability of the device and the safety of operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model of the windshield; Figure 2 This is a three-dimensional exploded view of the utility model of the windshield; Figure 3 This is a three-dimensional right view of the utility model of the windshield; Figure 4 It is a utility model for windshields Figure 3 Enlarged view of point A in the middle.

[0023] Reference numerals: 1. Vent; 2. Rotating rod; 3. Metal sheet; 4. Linkage assembly; 41. Disc; 42. Guide rod; 43. Transmission frame; 44. Transmission component; 441. Moving plate; 442. Round rod; 443. Screw sleeve; 444. Screw; 445. Metal plate; 446. Support frame; 447. Worm gear; 448. Worm; 449. Servo motor; 5. Stabilizing plate; 6. Bushing; 7. Blocking ring; 8. Protective cover; 9. Controller; 10. Safety cover. Detailed Implementation

[0024] The following description, in conjunction with the accompanying drawings, provides a further detailed explanation of the utility model of the windshield. Example

[0025] refer to Figure 1-4A multi-parameter dynamic control device for ventilation in coal mines includes a ventilation window 1, a rotating rod 2 that is laterally rotatably connected inside the ventilation window 1, a metal plate 3 that is fixedly connected to the surface of the rotating rod 2, the right side of the rotating rod 2 extending through to the right side of the ventilation window 1, and a linkage component 4 provided on the right side of the rotating rod 2. The linkage component 4 includes a disc 41, which is fixedly connected to the right side of the rotating rod 2. A guide rod 42 is fixedly connected to the right side of the disc 41. A transmission frame 43 is sleeved on the surface of the guide rod 42, and a transmission component 44 is provided on the rear side of the transmission frame 43.

[0026] refer to Figure 4 A bushing 6 is rotatably connected to the surface of the guide rod 42, and the bushing 6 is rotatably connected to the surface of the transmission frame 43. The bushing 6 can reduce the frictional resistance between the guide rod 42 and the transmission frame 43, making the sliding or rotation of the guide rod 42 in the transmission frame 43 smoother, reducing the wear rate of the components, extending the service life of the linkage assembly 4, and reducing noise and jamming during operation. It ensures the continuity and smoothness of power transmission, is suitable for the working conditions of coal mines with a lot of dust and harsh environment, and ensures the long-term stable operation of the ventilation control device.

[0027] refer to Figure 4 A blocking ring 7 is fixedly connected to the right side of the guide rod 42. There are several blocking rings 7. The blocking ring 7 can accurately limit the sliding range of the transmission frame 43 on the surface of the guide rod 42, prevent the transmission frame 43 from falling off the right side of the guide rod 42 due to underground vibration, power fluctuation or excessive adjustment range, avoid the failure of the linkage component 4 leading to the interruption of ventilation control, and at the same time ensure that the transmission frame 43 always moves within the effective stroke, ensure the accuracy of the angle adjustment of the metal plate 3, prevent ventilation system failure caused by component detachment, and improve the safety and reliability of the device operation.

[0028] refer to Figure 4 A controller 9 is fixedly installed on the top of the servo motor 449, and the controller 9 is electrically connected to the servo motor 449. The controller 9 and the servo motor 449 are electrically connected and can receive detection signals such as gas concentration, wind speed, and air volume in the coal mine in real time. According to preset thresholds or actual ventilation needs, the controller 9 can automatically adjust the running speed, direction, and start and stop of the servo motor 449 to achieve dynamic and automated control of multiple ventilation parameters. There is no need for manual operation by operators on site, which reduces the safety risks and labor intensity of manual intervention underground. At the same time, it improves the timeliness and accuracy of ventilation parameter adjustment, quickly responds to changes in underground working conditions, and ensures that the working environment meets safety standards.

[0029] Brief description of the usage process: The controller 9 receives real-time detection signals such as gas concentration, wind speed, and air volume in the coal mine. Based on the preset safety threshold or actual ventilation requirements, it automatically sends control commands to the servo motor 449. Through the transmission component 44, the transmission frame 43 is mounted on the surface of the guide rod 42 on the right side of the disc 41. Under the pushing and pulling action of the transmission frame 43, the guide rod 42 drives the disc 41 to rotate. The disc 41 then drives the rotating rod 2, which penetrates into the interior of the ventilation window 1, to rotate synchronously. The metal plate 3 fixed on the surface of the rotating rod 2 adjusts its angle with the rotating rod 2, thereby changing the opening and closing degree of the ventilation channel inside the ventilation window 1. Example

[0030] refer to Figure 1-4 A multi-parameter dynamic control device for ventilation in coal mines includes a transmission component 44 comprising a movable plate 441 located behind a transmission frame 43. A round rod 442 is fixedly connected to the rear side of the movable plate 441, and the round rod 442 is fixedly connected to the movable plate 441. A threaded sleeve 443 is fixedly connected to the rear side of the movable plate 441, and a screw rod 444 is threadedly connected to the rear side of the threaded sleeve 443. A metal plate 445 is vertically fixedly connected inside the ventilation window 1, and a support frame 446 is fixedly connected to the rear side of the metal plate 445. The support frame 446 is rotatably connected to the screw rod 444. A worm gear 447 is fixedly connected to the surface of the screw rod 444, and a worm 448 meshes with the top of the worm gear 447. A servo motor 449 is fixedly installed on the right side of the worm 448. The moving plate 441, the round rod 442, and the transmission frame 43 work together to convert the rotational motion of the screw sleeve 443 and the screw 444 into linear motion, achieving efficient power transmission. The metal plate 445 and the support frame 446 provide stable support for the screw 444, ensuring that the screw 444 does not deviate when rotating, thus improving transmission stability. The meshing transmission between the worm gear 447 and the worm 448 has the characteristics of precise transmission ratio and strong self-locking, which can prevent the metal plate 3 from being accidentally displaced due to underground vibration, ensuring stable ventilation parameters. The servo motor 449 can accurately output power, and together with the subsequent controller 9, it can realize the automated and refined control of ventilation parameters, meet the dynamic adjustment needs of air volume and air speed under different working conditions in coal mines, reduce manual intervention, and improve control efficiency and safety.

[0031] refer to Figure 4 A stabilizing plate 5 is rotatably connected to the left side of the worm 448, and the stabilizing plate 5 is fixedly connected to the surface of the metal plate 445. The stabilizing plate 5 provides effective support to the left end of the worm 448, preventing uneven force on both ends of the worm 448 due to its long length or underground vibration, thus preventing wobbling. This ensures that the worm 448 and the worm wheel 447 always maintain a precise meshing state, reducing transmission wear, improving the stability and reliability of power transmission, and extending the service life of the worm 448. It also prevents ventilation control interruptions due to transmission component failures, ensuring the continuous and stable operation of the underground ventilation system in the coal mine and reducing safety risks.

[0032] refer to Figure 4 A protective cover 8 is vertically fixed inside the ventilation window 1. The protective cover 8 is located on the outside of the disc 41. The protective cover 8 isolates the disc 41 and surrounding linkage components from other areas inside the ventilation window 1. It can effectively prevent dust, slag, moisture and other impurities in the coal mine from adhering to the surface of the components or entering the gaps. This avoids impurities affecting the rotation flexibility, causing the components to jam or rust, ensuring the transmission efficiency of the linkage component 4. At the same time, it can prevent falling objects or collisions from the mine from damaging the linkage components, improve the adaptability of the device to the harsh underground environment, extend its service life, and ensure the stable operation of ventilation control.

[0033] refer to Figure 4 A safety cover 10 is fixedly connected to the rear side of the metal plate 445. The safety cover 10 is located outside the worm gear 447. The safety cover 10 encloses and protects the core transmission components such as the worm gear 447 and worm 448. On the one hand, it can block the corrosion of underground dust, coal dust and moisture, prevent the components from rusting, jamming or accelerated wear, and ensure the smooth operation and service life of the transmission components. On the other hand, it can form a physical isolation to prevent operators from accidentally touching the high-speed rotating components during equipment maintenance or inspection. At the same time, it can prevent foreign objects such as coal slag from hitting the transmission components and causing failure. It takes into account the safety and durability of the device operation and ensures the long-term reliable operation of the ventilation control device in the coal mine.

[0034] Brief description of the operation: Before operation, confirm the status of each component of the device, ensuring that the protective cover 8 and safety cover 10 are intact to isolate underground dust and slag, that the stabilizing plate 5 supports the left end of the worm 448 in place, that the bushing 6 is not stuck, and that the blocking ring 7 is in the correct position. Then, the controller 9 receives real-time detection signals such as underground gas concentration, wind speed, and air volume. Based on the preset safety threshold or actual ventilation requirements, it automatically sends control commands to the servo motor 449. After the servo motor 449 starts, it drives the worm 448 connected on the right side to rotate. Because the worm 448 meshes with the worm wheel 447 fixed on the surface of the screw 444, the worm wheel 447 rotates with the worm 448 and drives the screw 444 to rotate synchronously under the stable support of the support frame 446 on the rear side of the metal plate 445. When the screw 444 rotates, the threaded sleeve 443 on its surface converts the rotational motion into linear motion, which in turn drives the moving plate 441 fixed to the threaded sleeve 443 to move back and forth. The moving plate 441 drives the transmission frame 4 on the rear side through the round rod 442. 3. Synchronous movement: The transmission frame 43 is mounted on the surface of the guide rod 42 on the right side of the disc 41. Under the pushing and pulling action of the transmission frame 43, the guide rod 42 drives the disc 41 to rotate. The disc 41 then drives the rotating rod 2, which runs through the interior of the ventilation window 1, to rotate synchronously. The metal plate 3 fixed on the surface of the rotating rod 2 adjusts its angle with the rotating rod 2, thereby changing the opening and closing degree of the ventilation channel inside the ventilation window 1, realizing dynamic control of air volume and wind speed. During the process, the blocking ring 7 limits the sliding range of the transmission frame 43 on the guide rod 42 to prevent it from falling off and causing control failure. The protective cover 8 and the safety cover 10 respectively prevent impurities from entering the linkage component 4 and the worm gear 447 and worm 448 transmission components, preventing the components from jamming and rusting, and at the same time preventing operators from accidentally touching the rotating components. The controller 9 continuously fine-tunes the speed and direction of the servo motor 449 according to the detection signal to ensure that the ventilation parameters always meet the underground safety standards. No manual on-site operation is required, which greatly reduces safety risks and labor intensity and ensures the stable and reliable operation of the ventilation system.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance standards. Deterioration in performance due to prolonged use of parts is not considered a design defect in the windshield.

[0036] The specific embodiments of the windshield are merely an explanation of the windshield utility model and are not intended to limit it. After reading the windshield specification, those skilled in the art can make modifications to the windshield embodiments without contributing any inventive step, but as long as they are within the scope of the claims of the windshield utility model, they are protected by patent law.

Claims

1. A multi-parameter dynamic control device for underground ventilation in coal mines, comprising a ventilation window (1), characterized in that: The interior of the windshield (1) is connected to a rotating rod (2) for horizontal rotation. A metal sheet (3) is fixedly connected to the surface of the rotating rod (2). The right side of the rotating rod (2) extends through to the right side of the windshield (1). A linkage component (4) is provided on the right side of the rotating rod (2). The linkage component (4) includes a disc (41), which is fixedly connected to the right side of the rotating rod (2). A guide rod (42) is fixedly connected to the right side of the disc (41). A transmission frame (43) is sleeved on the surface of the guide rod (42), and a transmission component (44) is provided on the rear side of the transmission frame (43).

2. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 1, characterized in that: The transmission component (44) includes a movable plate (441), which is located on the rear side of the transmission frame (43). A round rod (442) is fixedly connected to the rear side of the movable plate (441). The round rod (442) is fixedly connected to the movable plate (441). A screw sleeve (443) is fixedly connected to the rear side of the movable plate (441). A screw rod (444) is threadedly connected to the rear side of the screw sleeve (443). A metal plate (445) is vertically fixedly connected inside the windshield (1). A support frame (446) is fixedly connected to the rear side of the metal plate (445). The support frame (446) is rotatably connected to the screw rod (444). A worm gear (447) is fixedly connected to the surface of the screw rod (444). A worm (448) is meshed at the top of the worm gear (447). A servo motor (449) is fixedly installed on the right side of the worm (448).

3. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 2, characterized in that: A stabilizing plate (5) is rotatably connected to the left side of the worm (448), and the stabilizing plate (5) is fixedly connected to the surface of the metal plate (445).

4. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 1, characterized in that: The guide rod (42) is rotatably connected to a bushing (6), which is rotatably connected to the surface of the transmission frame (43).

5. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 1, characterized in that: A blocking ring (7) is fixedly connected to the right side of the guide rod (42), and there are several blocking rings (7).

6. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 1, characterized in that: The windshield (1) is vertically fixed to a protective cover (8), which is located on the outside of the disc (41).

7. The multi-parameter dynamic control device for underground ventilation in coal mines according to claim 2, characterized in that: A controller (9) is fixedly mounted on the top of the servo motor (449), and the controller (9) is electrically connected to the servo motor (449).

8. A multi-parameter dynamic control device for underground ventilation in coal mines according to claim 2, characterized in that: A safety cover (10) is fixedly connected to the rear side of the metal plate (445), and the safety cover (10) is located outside the worm gear (447).

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