A device for identifying abnormal operating conditions of main shaft skip unloading

Abstract

This utility model relates to the field of mine hoisting skip monitoring technology, specifically to a device for identifying abnormal unloading conditions of a main shaft skip, including a coal unloading platform, a coal bunker, a mounting frame, a balancing cylinder image acquisition mechanism, and a coal unloading condition image acquisition mechanism. The coal bunker is located below the coal unloading platform. The mounting frame is installed next to the main body and is equipped with a lighting unit, which includes at least one skip spotlight. The balancing cylinder image acquisition mechanism is installed on top of the mounting frame and includes a telescopic component that extends and retracts under the control of a drive cylinder, changing the recording position of the balancing cylinder camera. The coal unloading condition image acquisition mechanism is installed next to the coal bunker and includes a moving platform that moves up and down on a fixed slide rail by rotating a threaded rod, changing the recording position of the coal unloading condition camera.

Description

Technical Field

[0001] This utility model relates to the field of monitoring technology for mining hoisting skips, specifically to a device for identifying abnormal unloading conditions of the main shaft skip. Background Technology

[0002] In coal mine production, the main shaft hoisting system, as a crucial link in mine transportation, directly impacts the overall efficiency and safety of mine production. However, in actual operation, overloading of skips due to coal adhesion frequently occurs. Coal adhesion is highly accidental and insidious, especially in the automatic unloading process on curved tracks. If residual coal chunks in the skip are not unloaded in time, they are easily reloaded when lowered to the loading position in the next cycle, leading to serious overloading. If overloading is not detected and addressed promptly, it can not only cause equipment wear and reduced operating efficiency but also potentially trigger major accidents such as skip falls, posing significant safety hazards to personnel and equipment. Furthermore, coal adhesion can cause blockages in the coal bunker and inside the skip, affecting the continuity of coal transport and severely restricting the automation and safety of the mine hoisting system.

[0003] To address the aforementioned issues, current mine hoisting processes rely heavily on manual experience or post-event inspections to detect coal adhesion and overloading, lacking real-time and effective identification methods. This traditional approach suffers from drawbacks such as detection lag, low accuracy, and slow emergency response, failing to meet the demands of modern mines for efficient and safe operation. As mine production scales expand, the operating frequency and load of hoisting systems also increase, making the risks posed by skip unloading anomalies more prominent. If anomalies are not identified in time, leading to skip overloading, it not only increases equipment maintenance costs but also reduces overall mine transportation efficiency, potentially causing production interruptions and significant economic losses for the enterprise. Therefore, there is an urgent need to develop a device capable of real-time identification and early warning of abnormal skip unloading conditions, enabling rapid perception and handling of abnormal situations and improving the safety and reliability of automated mine hoisting systems.

[0004] In view of the above, in order to overcome the above technical problems, this utility model designs an abnormal working condition identification device for main shaft skip unloading, which solves the above technical problems. Utility Model Content

[0005] The technical objective of this invention is to design a device for identifying abnormal working conditions of skip unloading in the main shaft, which is a device for real-time identification and early warning of abnormal working conditions of skip unloading, so as to realize rapid perception and processing of abnormal situations and improve the safety and reliability of the mine automated hoisting system.

[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution:

[0007] A device for identifying abnormal operating conditions during main shaft skip unloading includes a coal unloading platform, a coal bunker, a mounting frame, a balancing cylinder image acquisition mechanism, and a coal unloading condition image acquisition mechanism. The coal bunker is located below the coal unloading platform. The mounting frame is installed next to the main body and has a lighting unit, including at least one skip spotlight mounted on a fixed point on the mounting frame. The balancing cylinder image acquisition mechanism is mounted on top of the mounting frame and includes a telescopic component that extends and retracts under the control of a drive cylinder, changing the recording position of the balancing cylinder camera. The coal unloading condition image acquisition mechanism is installed next to the coal bunker and includes a moving platform that moves up and down on a fixed slide rail via the rotation of a threaded rod, changing the recording position of the coal unloading condition camera.

[0008] As one preferred embodiment, the balancing cylinder image acquisition mechanism includes a first mounting block, a drive cylinder, a second mounting block, a third mounting block, a telescopic assembly, and a balancing cylinder camera; the first and second mounting blocks are mounted on both sides of the mounting frame, the drive cylinder is mounted below the first mounting block, the telescopic assembly is mounted at the output end of the drive cylinder, the third mounting block is located at one end of the telescopic assembly, and the balancing cylinder camera is mounted on top of the third mounting block.

[0009] As one preferred embodiment, the drive cylinder includes a cylinder control rod, a connecting ring, and a flexible wire; the cylinder control rod is disposed on the side of the drive cylinder and can extend and retract under the control of the drive cylinder; the connecting ring is installed on the side of the cylinder control rod; the flexible wire is disposed inside the connecting ring; and the other end of the flexible wire is electrically connected to the extension and retraction assembly.

[0010] As one preferred embodiment, the telescopic assembly includes a fixed sleeve, a limiting groove, a telescopic rod, and a limiting rod; the fixed sleeve is installed on the side of the second mounting block, the limiting groove is formed inside the fixed sleeve, the telescopic rod is installed inside the fixed sleeve, the limiting rod is installed in the limiting groove, and one end of the limiting rod is provided with a limiting block with the same diameter as the limiting groove.

[0011] As one preferred embodiment, the coal unloading condition image acquisition mechanism includes a fixed plate, a fixed slide rail, a threaded rod, a moving platform, a coal unloading condition camera assembly, and a drive motor; the fixed plate is installed on the coal unloading platform, the fixed slide rail is installed on top of the fixed plate, the threaded rod is installed next to the fixed slide rail, the moving platform is snapped onto the fixed slide rail, the coal unloading condition camera assembly is installed on top of the moving platform, and the drive motor is installed behind the fixed slide rail.

[0012] As a preferred embodiment, the upper end of the threaded rod is provided with a pulley, and the pulley and the drive motor are connected by a belt.

[0013] As one preferred embodiment, the coal unloading condition camera assembly includes a rotating platform, an adjusting frame, and a coal unloading condition camera; the rotating platform is mounted on top of the moving platform, the adjusting frame is mounted on top of the rotating platform, and the coal unloading condition camera is mounted on top of the adjusting frame.

[0014] As one of the preferred options, the rotating platform can rotate in the horizontal direction, and the adjusting frame can drive the coal unloading camera to rotate back and forth.

[0015] As a preferred solution, a system for identifying abnormal operating conditions during main shaft skip unloading is provided, comprising the following steps:

[0016] S1. Collect video of the main shaft skip unloading port;

[0017] S2. Perform Hough circle transform and grayscale statistics on the video;

[0018] S3. Collect video of the balancing cylinder when the skip is in position;

[0019] S4. Perform template matching tracking on the video;

[0020] S5. Conduct a comprehensive evaluation of the obtained data.

[0021] The beneficial effects of this utility model are as follows:

[0022] (1) This utility model achieves contactless monitoring of the entire skip unloading process by installing image acquisition mechanisms at the main shaft unloading port and the skip's position, effectively avoiding the lag and inaccuracy of traditional manual inspection. By using image processing methods such as Hough circle transform, grayscale statistics, and template matching, it is possible to identify in real time whether there is coal sticking, blockage, or overloading in the skip, thereby improving the safe operation level of the mine hoisting system and reducing the risk of accidents.

[0023] (2) The telescopic component, moving platform and rotating adjustment frame design of this utility model enable the camera to monitor the skip from multiple angles and positions, realizing multi-dimensional image acquisition. This not only enhances the coverage and accuracy of monitoring, but also allows for flexible adjustment of the viewing angle according to the actual operating conditions, ensuring that abnormal working conditions are fully captured, and providing reliable data support for mine production.

[0024] (3) This utility model does not require modification of the existing mine hoist structure, and is easy to install and highly adaptable. Through automated image acquisition and intelligent evaluation, it realizes online real-time monitoring of coal sticking in the skip, improves the level of intelligence and production efficiency of mine hoisting operations, and provides new methods and technical guarantees for mine safety management and automated operation. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the image acquisition mechanism of the balance cylinder of this utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the drive cylinder and telescopic assembly of this utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the coal unloading operation image acquisition mechanism of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the coal unloading camera component of this utility model.

[0032] In the diagram: 1. Coal unloading platform; 2. Coal bunker; 3. Mounting frame; 4. Balancing cylinder image acquisition mechanism; 41. First mounting block; 42. Drive cylinder; 421. Cylinder control rod; 422. Connecting ring; 423. Elastic wire; 43. Second mounting block; 44. Third mounting block; 45. Telescopic assembly; 451. Fixed sleeve; 452. Limiting groove; 453. Telescopic rod; 454. Limiting rod; 46. Balancing cylinder camera; 5. Coal unloading condition image acquisition mechanism; 51. Fixed plate; 52. Fixed slide rail; 53. Threaded rod; 54. Moving platform; 55. Coal unloading condition camera assembly; 551. Rotating platform; 552. Adjusting frame; 553. Coal unloading condition camera; 56. Drive motor. Detailed Implementation

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] like Figure 1-5 As shown, a main shaft skip unloading abnormal condition identification device includes a coal unloading platform 1, a coal bunker 2, a mounting frame 3, a balance cylinder image acquisition mechanism 4, and a coal unloading condition image acquisition mechanism 5. The coal bunker 2 is located below the coal unloading platform 1 and is used for the hoisting and unloading of coal underground. To achieve real-time monitoring of the skip's operating status, the mounting frame 3 is installed next to the coal bunker 2, and multiple lighting units are fixed on it. Each lighting unit includes at least one skip spotlight, which is fixedly installed at the mounting point of the mounting frame 3, providing stable and sufficient lighting conditions for image acquisition, ensuring that the camera can still obtain clear image information in complex underground environments. The auxiliary lighting from the spotlight not only improves the accuracy of image acquisition but also effectively records the details of skip unloading and operation even in conditions of high coal dust or insufficient light.

[0035] The image acquisition mechanism 4 for the balancing cylinder is installed on the upper part of the mounting frame 3. This mechanism is mainly used for image monitoring of the operating status of the balancing cylinder. The mechanism includes a telescopic component 45, which extends and retracts under the control of the drive cylinder 42, thereby adjusting the position of the balancing cylinder camera 46 mounted on it. Through the telescopic movement, the recording angle and distance of the camera can be flexibly changed, enabling comprehensive monitoring of the balancing cylinder under different operating conditions. This facilitates timely detection of cylinder abnormalities caused by coal adhesion or abnormal operation, thus providing reliable image evidence for subsequent anomaly identification and processing.

[0036] The coal unloading condition image acquisition mechanism 5 is installed on the side of the coal bunker 2, and its core structure is a movable platform 54. This movable platform 54 moves up and down under the guidance of a fixed slide rail 52 by rotating a threaded rod 53, thereby changing the recording position of the coal unloading condition camera 553 mounted on it. Through the adjustment of the movable platform 54, the coal unloading condition camera 553 can flexibly adjust its monitoring angle and range according to the operation of the skip at different heights and positions, thus achieving real-time tracking and recording of the entire coal unloading process. This design not only clearly captures abnormal situations such as incomplete coal unloading, overloading, or blockage during the unloading process, but also provides high-quality image data for the intelligent recognition system.

[0037] This device, through image acquisition mechanisms positioned at different locations and aided by lighting units, enables multi-angle and multi-directional monitoring of the main shaft skip during unloading. The introduction of the telescopic assembly 45 and the mobile platform 54 allows the camera to flexibly adjust its monitoring range and angle, avoiding blind spots caused by fixed installations, thus significantly improving the accuracy and real-time performance of abnormal condition identification. This device not only enhances the safety assurance capabilities of the mine hoisting system but also provides strong technical support for the construction of intelligent mines.

[0038] like Figure 2 As shown, the balancing cylinder image acquisition mechanism 4 includes a first mounting block 41, a drive cylinder 42, a second mounting block 43, a third mounting block 44, a telescopic assembly 45, and a balancing cylinder camera 46. These components form a stable mounting and cooperation structure. Specifically, the first mounting block 41 and the second mounting block 43 are fixed to both sides of the mounting frame 3, providing stable support and a mounting foundation for the entire mechanism. The drive cylinder 42 is mounted below the first mounting block 41, and its output end is connected to the telescopic assembly 45. The telescopic movement of the drive cylinder 42 drives the telescopic assembly 45 to move linearly, thereby enabling flexible adjustment of the camera position. A third mounting block 44 is located at one end of the telescopic assembly 45, serving as a mounting fulcrum for the camera and ensuring its stability during movement. The balancing cylinder camera 46 is mounted on the upper surface of the third mounting block 44. Through the linkage between the drive cylinder 42 and the telescopic assembly 45, real-time monitoring of the balancing cylinder status at different positions can be achieved, providing accurate and clear image data support for subsequent identification of abnormal working conditions.

[0039] like Figure 3 As shown, the drive cylinder 42 includes a cylinder control rod 421, a connecting ring 422, and an elastic wire 423. These components cooperate to achieve stable driving and electrical connection of the cylinder. Specifically, the cylinder control rod 421 is located on the side of the drive cylinder 42 and can reciprocate under the action of the cylinder, thereby driving the relevant components to adjust their displacement. The connecting ring 422 is fixedly installed on the side of the cylinder control rod 421, providing connection and support functions, ensuring that the cylinder control rod 421 maintains good stability and positioning accuracy during extension and retraction. The elastic wire 423 is located inside the connecting ring 422, possessing a certain degree of flexibility and tensile strength, preventing breakage or loosening due to excessive tension during the cylinder's extension and retraction. One end of the elastic wire 423 is fixed inside the connecting ring 422, and the other end is electrically connected to the telescopic assembly 45, ensuring that while the cylinder drives the telescopic assembly 45, electrical signals can be smoothly transmitted to the telescopic assembly 45 and the camera equipment mounted on it, ensuring the stability and continuity of the image acquisition process.

[0040] The telescopic assembly 45 includes a fixed sleeve 451, a limiting groove 452, a telescopic rod 453, and a limiting rod 454. These components cooperate to achieve stable telescopic adjustment. Specifically, the fixed sleeve 451 is installed on the side of the second mounting block 43, providing a mounting base and support for the telescopic assembly 45. The limiting groove 452 is located inside the fixed sleeve 451, guiding and constraining the movement of the telescopic rod 453 to prevent deviation or swaying during telescopic movement. The telescopic rod 453 is movably installed inside the fixed sleeve 451 and can reciprocate under the drive of the cylinder 42, thereby changing the camera's monitoring position. The limiting rod 454 is installed in the limiting groove 452, controlling the range of motion of the telescopic rod 453 to prevent excessive telescopic movement that could cause damage or failure. One end of the limiting rod 454 has a limiting block with a diameter matching the limiting groove 452, ensuring a tight fit and effective fixation within the groove, thus enhancing overall stability and safety. Through the above structural design, the telescopic component 45 can not only flexibly adjust the position of the camera, but also ensure that it maintains a stable and reliable working state during frequent movements.

[0041] like Figure 4 As shown, the coal unloading condition image acquisition mechanism 5 includes a fixed plate 51, a fixed slide rail 52, a threaded rod 53, a moving platform 54, a coal unloading condition camera assembly 55, and a drive motor 56. These components cooperate to form a complete acquisition system capable of adjusting the monitoring position at any time. Specifically, the fixed plate 51 is securely installed on the coal unloading platform 1, providing a solid support foundation for the entire acquisition mechanism. The fixed slide rail 52 is positioned above the fixed plate 51, guiding the sliding of the moving platform 54 and ensuring the smoothness and accuracy of the movement. The threaded rod 53 is installed on one side of the fixed slide rail 52, cooperating with the moving platform 54 to adjust its vertical movement on the slide rail. The moving platform 54 is fixed to the slide rail by a snap-fit ​​mechanism, ensuring both operational stability and convenient position adjustment. The coal unloading condition camera assembly 55 is installed on the upper surface of the moving platform 54, enabling tracking and monitoring of the entire skip coal unloading process based on the position changes of the moving platform 54. The drive motor 56 is installed at the rear of the fixed slide rail 52. By driving the threaded rod 53 to rotate, it drives the moving stage 54 to move up and down along the slide rail, thereby realizing the automatic adjustment of the camera angle and position, and providing comprehensive and accurate image data support for the identification of abnormal working conditions.

[0042] A rotating wheel is mounted on the upper end of the threaded rod 53. The rotating wheel is connected to the drive motor 56 via a belt, forming a stable transmission structure. When the drive motor 56 starts, it drives the belt drive, thereby driving the rotating wheel to rotate, which in turn drives the threaded rod 53 to rotate. This transmission method not only ensures the smoothness and reliability of the threaded rod 53's operation but also effectively improves the transmission efficiency of the mechanism, providing reliable power support for the vertical movement of the moving platform 54.

[0043] like Figure 5 As shown, the coal unloading condition camera assembly 55 includes a rotating platform 551, an adjusting frame 552, and a coal unloading condition camera 553. These components work together to achieve flexible monitoring functions. Specifically, the rotating platform 551 is mounted above the moving platform 54 and can rotate horizontally under the action of the drive mechanism, thus providing the camera with a larger monitoring range and avoiding blind spots. The adjusting frame 552 is mounted on top of the rotating platform 551 and is used for fine-tuning the angle and height of the camera, allowing it to flexibly adjust the shooting angle according to the actual coal unloading conditions, ensuring clearer and more comprehensive images. The coal unloading condition camera 553 is fixedly mounted on the upper end of the adjusting frame 552. As the core monitoring unit, it can record the working status of the skip during the coal unloading process in real time, including whether the coal is unloaded smoothly, and whether there are any abnormalities such as coal sticking, blockages, or residues. Through the dual adjustment structure of the rotating platform 551 and the adjustment bracket 552, the camera can not only rotate in the horizontal direction, but also adjust its angle in the vertical direction, which greatly improves the monitoring flexibility and coverage, thereby providing more accurate and reliable image data support for abnormal working condition identification.

[0044] The rotating platform 551 can rotate flexibly in the horizontal direction, allowing the adjusting frame 552 and camera mounted on it to cover a wider monitoring area and avoid blind spots caused by fixed angles. Simultaneously, the adjusting frame 552 has the function of driving the coal unloading camera 553 to rotate back and forth, enabling the camera to adjust its angle in the vertical direction, thus flexibly switching the monitoring perspective according to the operation of the skip at different heights and positions. Through the combination of the horizontal rotation of the rotating platform 551 and the back-and-forth rotation of the adjusting frame 552, the camera has multi-dimensional adjustment capabilities, enabling comprehensive and accurate recording of the entire coal unloading process, ensuring that abnormal situations can be captured and identified in a timely manner.

[0045] This invention provides a system for identifying abnormal unloading conditions of a main shaft skip. The system's operation includes the following steps: First, in step S1, video information is collected at the main shaft skip unloading port, and the entire coal unloading process is recorded in real time using a high-definition camera. In step S2, the collected video undergoes Hough circle transform and grayscale statistical processing. Using a stable light source provided by spotlights, the region of interest in the color image is converted to grayscale. The number of pixels with grayscale values ​​exceeding a set threshold is then counted to determine whether coal adhesion occurs during unloading. Subsequently, in step S3, video of the balancing cylinder is collected when the skip reaches its designated position to ensure synchronous acquisition of equipment operating status. In step S4, template matching is used to track and analyze the video, extracting key feature parameters to accurately identify the operating status of the cylinders and the skip. Finally, in step S5, the previously obtained coal unloading time, video image features, and skip visibility through spotlights are integrated to comprehensively assess whether coal adhesion or unloading abnormalities exist in the skip.

[0046] Through the above method, this invention achieves non-contact monitoring of the skip's operating status. Since image acquisition is performed using a front-facing camera on the balance cylinder at the main shaft unloading port and the skip's positioning position, no modifications to the existing mine hoist structure are required, ensuring the simplicity and practicality of the solution. This system can quickly and accurately identify coal adhesion without affecting normal production, effectively preventing overloading and equipment damage caused by coal adhesion. The method of this invention not only improves the safety of skip operation but also provides a novel technical approach for online real-time monitoring of coal adhesion, showing promising application prospects.

[0047] During operation, when the skip is lowered into the main shaft and reaches the unloading port, the coal unloading status camera 553 installed at the unloading port captures real-time video of the skip's coal unloading status. Simultaneously, the balancing cylinder image acquisition mechanism 4 captures images of the cylinder status when the skip reaches its final position. During unloading, the lighting unit provides a stable light source to ensure clear and usable images. The camera's viewing angle can be flexibly adjusted horizontally and longitudinally via the rotating platform 551 and the adjusting frame 552, enabling multi-angle and multi-directional monitoring of the skip.

[0048] The acquired video signals are then processed by the system. First, Hough circle transform and grayscale statistics are performed on the video from the coal unloading port to extract the outline and grayscale information of the skip. By counting the number of pixels with grayscale values ​​exceeding a threshold, it is determined whether the coal is being unloaded smoothly and whether there is any coal sticking. Simultaneously, the video from the balancing cylinder is tracked and analyzed using template matching to extract information on the cylinder's operating status and position changes. By using the threaded rod 53 to drive the moving stage 54 up and down, the telescopic component 45 to adjust the camera position, and the rotating platform 551 to rotate, the system can achieve video acquisition from different positions and angles, thus ensuring comprehensive monitoring.

[0049] Ultimately, the system comprehensively evaluates the coal unloading port image results with the balance cylinder image information, and combines indicators such as coal unloading time and skip transmitted light brightness to determine whether the skip has abnormal operating conditions such as coal sticking, overloading, or blockage. This working principle, based on non-contact image acquisition and intelligent image analysis, enables real-time and accurate monitoring of the main shaft skip's operating status without altering the original mine hoist architecture, thus improving the system's practicality and the safety and automation level of mine hoisting operations.

[0050] Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.

Claims

1. A device for identifying abnormal operating conditions during main shaft skip unloading, characterized in that, It includes a coal unloading platform (1), a coal bunker (2), an installation frame (3), a balance cylinder image acquisition mechanism (4), and a coal unloading condition image acquisition mechanism (5); The coal bunker (2) is located below the coal unloading platform (1). The mounting frame (3) is installed next to the main body. The mounting frame (3) is equipped with a lighting unit, which includes at least one skip spotlight. The skip spotlight is installed on a fixed point of the mounting frame (3). The balancing cylinder image acquisition mechanism (4) is installed on the mounting frame (3). The balancing cylinder image acquisition mechanism (4) includes a telescopic component (45). The telescopic component (45) extends and retracts under the control of the drive cylinder (42) to change the recording position of the balancing cylinder camera (46). The coal unloading condition image acquisition mechanism (5) is installed next to the coal bunker (2). The coal unloading condition image acquisition mechanism (5) includes a moving platform (54). The moving platform (54) moves up and down on the fixed slide rail (52) by rotating the threaded rod (53) to change the recording position of the coal unloading condition camera (553).

2. The main shaft skip unloading abnormal condition identification device according to claim 1, characterized in that: The image acquisition mechanism (4) of the balance cylinder includes a first mounting block (41), a drive cylinder (42), a second mounting block (43), a third mounting block (44), a telescopic component (45), and a balance cylinder camera (46). The first mounting block (41) and the second mounting block (43) are mounted on both sides of the mounting frame (3). The drive cylinder (42) is mounted below the first mounting block (41). The telescopic assembly (45) is mounted at the output end of the drive cylinder (42). The third mounting block (44) is located at one end of the telescopic assembly (45). The balance cylinder camera (46) is mounted on the top of the third mounting block (44).

3. The main shaft skip unloading abnormal condition identification device according to claim 2, characterized in that: The drive cylinder (42) includes a cylinder control rod (421), a connecting ring (422), and a flexible wire (423). The cylinder control rod (421) is located on the side of the drive cylinder (42). The cylinder control rod (421) can extend and retract under the control of the drive cylinder (42). The connecting ring (422) is installed on the side of the cylinder control rod (421). The elastic wire (423) is located inside the connecting ring (422). The other end of the elastic wire (423) is electrically connected to the telescopic component (45).

4. The main shaft skip unloading abnormal condition identification device according to claim 2, characterized in that: The telescopic assembly (45) includes a fixed sleeve (451), a limiting groove (452), a telescopic rod (453), and a limiting rod (454). The fixed sleeve (451) is installed on the side of the second mounting block (43), the limiting groove (452) is opened inside the fixed sleeve (451), the telescopic rod (453) is installed inside the fixed sleeve (451), the limiting rod (454) is installed in the limiting groove (452), and one end of the limiting rod (454) is provided with a limiting block with the same diameter as the limiting groove (452).

5. The main shaft skip unloading abnormal condition identification device according to claim 1, characterized in that: The coal unloading condition image acquisition mechanism (5) includes a fixed plate (51), a fixed slide rail (52), a threaded rod (53), a moving platform (54), a coal unloading condition camera assembly (55), and a drive motor (56). The fixing plate (51) is installed on the coal unloading platform (1), the fixing slide rail (52) is installed on the fixing plate (51), the threaded rod (53) is installed next to the fixing slide rail (52), the moving platform (54) is snapped onto the fixing slide rail (52), the coal unloading condition camera assembly (55) is installed on the moving platform (54), and the drive motor (56) is installed behind the fixing slide rail (52).

6. The main shaft skip unloading abnormal condition identification device according to claim 5, characterized in that: The upper end of the threaded rod (53) is provided with a rotating wheel, and the rotating wheel and the drive motor (56) are connected by a belt.

7. The main shaft skip unloading abnormal condition identification device according to claim 5, characterized in that: The coal unloading condition camera assembly (55) includes a rotating platform (551), an adjusting frame (552), and a coal unloading condition camera (553). The rotating platform (551) is mounted on the moving platform (54), the adjusting frame (552) is mounted on the rotating platform (551), and the coal unloading condition camera (553) is mounted on the adjusting frame (552).

8. The main shaft skip unloading abnormal condition identification device according to claim 7, characterized in that: The rotating platform (551) can rotate in the horizontal direction, and the adjusting frame (552) can drive the coal unloading camera (553) to rotate back and forth.

Images