Anti-derailing protection system and method for transshipment bridge frame of coal mine fully-mechanized coal winning machine

Abstract

The invention provides a coal mine roadheader transfer bridge anti-derailment protection system and method.The coal mine roadheader transfer bridge anti-derailment protection system comprises a detection assembly, the detection assembly comprises a mounting part and a detection part, the mounting part is connected with a transfer bridge and arranged close to a track wheel of the transfer bridge, the detection part is connected with the mounting part, and the detection part is arranged close to the track wheel of the transfer bridge; the detection part is electrically connected with the fully-mechanized excavating machine electric control box, the fully-mechanized excavating machine electric control box is used for providing electric energy for the detection part, the detection part is used for controlling a scram button of the fully-mechanized excavating machine electric control box, the detection part is used for detecting a first detection parameter and a second detection parameter, and the first detection parameter at least comprises the distance between the detection part and the track; the second detection parameter at least comprises the distance between the detection part and adjacent equipment in the circumferential direction of the track wheel, and analyzing and controlling the operation state of a scram button of the electric cabinet of the fully-mechanized coal winning machine according to the detection information. The anti-derailing protection system for the transshipment bridge of the coal mine fully-mechanized excavating machine has the advantages of high response speed and high safety.

Description

Technical Field

[0001] This invention relates to the technical field of coal mine transportation, specifically to a protection system and method for preventing derailment of a transfer bridge on a coal mine roadheader. Background Technology

[0002] In underground coal mine roadway operations, the roadheader, as the core equipment, undertakes the crucial tasks of tunnel excavation and coal cutting and conveying. However, in actual production, due to complex geological conditions, especially when operating in coal seams prone to rock bursts, the roadheader and its auxiliary equipment face serious safety risks. When a rock burst (coal explosion) occurs, the enormous energy release can cause the tail of the belt conveyor to suddenly lift, leading to the roadheader's transfer bridge derailing (derailment). Once the transfer bridge derails, it not only causes direct equipment damage such as structural deformation, cable breakage, electric drum burnout, and belt tearing, but also poses a serious safety threat to on-site operators and may even trigger secondary accidents.

[0003] In related technologies, roadheaders lack a real-time monitoring and rapid response mechanism for the status of the transfer bridge track during operation. When the transfer bridge shifts, lifts, or derails due to rock pressure or other abnormal conditions, the roadheader's hydraulic system, cutting system, and coal transport system cannot automatically identify and execute a shutdown operation in the first instance, and continue to operate, which can easily cause cascading damage to equipment and personnel casualties. Although some coal mines have adopted manual monitoring or basic mechanical limit devices, their response speed is slow and their reliability is low, which cannot meet the needs of the high-intensity and high-risk working environment underground. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a derailment prevention protection system and method for the transfer bridge of a coal mine roadheader. This derailment prevention protection system for the transfer bridge of a coal mine roadheader has the advantages of fast response speed and high safety.

[0006] The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to an embodiment of the present invention includes:

[0007] The detection assembly includes a mounting section and a detection section. The mounting section is connected to a transfer cable tray and arranged adjacent to the track wheels of the transfer cable tray. The detection section is connected to the mounting section and is located on the side of the mounting section adjacent to the track wheels.

[0008] The detection unit is electrically connected to the roadheader's electrical control box. The roadheader's electrical control box supplies power to the detection unit, and the detection unit controls the emergency stop button of the roadheader's electrical control box.

[0009] The detection unit is used to detect a first detection parameter and a second detection parameter. The first detection parameter includes at least the distance between the detection unit and the track, and the second detection parameter includes at least the distance between the detection unit and the adjacent equipment in the circumferential direction of the track wheel. Based on the detection information, the unit analyzes and controls the operation status of the emergency stop button of the tunnel boring machine's electrical control box.

[0010] The anti-derailment protection system for the transfer bridge of a coal mine roadheader in this embodiment of the invention utilizes detection components to monitor the status of the transfer bridge track in real time, promptly detecting abnormal changes in the track or track wheels caused by factors such as rock bursts. Once an abnormality is detected in the track or track wheels, the system can respond quickly, controlling the emergency stop button via the electrical control box to immediately stop the roadheader's operation, avoiding equipment damage and personnel injury due to delayed response. Furthermore, through automated monitoring and control, the system's reliability is higher than that of manual monitoring and basic mechanical limit devices, reducing the possibility of human error and equipment failure.

[0011] Therefore, the anti-derailment protection system for the transfer bridge of the coal mine roadheader in this embodiment of the invention can adapt to the complex and varied geological conditions underground, especially coal seams prone to rock bursts, and provides a guarantee for the safe operation of the roadheader in harsh environments.

[0012] In some embodiments, the detection unit includes a first detection element and a second detection element, the first detection element being arranged vertically toward the track, and the second detection element being arranged horizontally toward the tail end of the track.

[0013] In some embodiments, the detection unit further includes a third detection element, which is arranged between the first and second detection elements in the vertical direction, and the third detection element is arranged at an angle.

[0014] In some embodiments, the angle between the extension direction of the third detection element and the extension direction of the first detection element is greater than or equal to 30° and less than or equal to 60°.

[0015] In some embodiments, there are multiple third detection elements, and the multiple third detection elements are arranged at intervals along the vertical direction.

[0016] In some embodiments, the coal mine roadheader transfer bridge anti-derailment protection system of the present invention further includes an information processing component and an early warning component. The information processing component is connected to the detection component to collect and process the data information detected by the detection component. If the data information exceeds the early warning value, the information processing component sends an emergency stop instruction to the emergency stop button and sends a warning message to the early warning component, and the early warning component sends a warning signal.

[0017] The method for preventing derailment of the transfer cable tray of a coal mine roadheader according to this invention is implemented using the coal mine roadheader transfer cable tray anti-derailment protection system described in any of the above embodiments, and includes the following steps:

[0018] S1. Arrange detection components on one side of the track wheels of the transfer bridge in the direction of travel;

[0019] S2. Adjust the arrangement of the detection components and determine the orientation of the first and second detection components;

[0020] S3. Simulate movement and collect detection information from the detection components in the simulation state. Based on the detection information during the simulation process, determine the data security threshold range.

[0021] S4. Real-time detection and data collection; based on the collected detection parameters, establish a multi-parameter fusion analysis model; compare and analyze the real-time data with the preset safety threshold range; and determine in real time whether the running status of the track wheel is abnormal.

[0022] S5. When a tendency to derail or abnormal displacement of the track wheel is detected, immediately send a control signal to the emergency stop button of the tunneling machine's electrical control box to execute an emergency stop operation;

[0023] S6. While the emergency stop operation is being performed, the early warning system is activated to issue multi-level warning signals.

[0024] In some embodiments, the detection information includes a first detection parameter and a second detection parameter, wherein the first detection parameter is collected by a first detection element arranged in a vertical direction and is used to monitor the lifting or sinking displacement of the track wheel;

[0025] The second detection parameter is collected by a second detection element arranged in the horizontal direction and is used to monitor the lateral offset or axial displacement of the track wheel;

[0026] By combining the changing trends and coupling relationship of the first and second detection parameters, the overall lifting and unilateral torsional deformation of the transfer cable tray can be distinguished.

[0027] In some embodiments, step S2 further includes arranging a third detection element, which is used to provide a third detection parameter. The third detection parameter is collected by the tilted third detection element and is used to monitor the relative position change between the track wheel and the tail of the track.

[0028] The angle between the extension direction of the third detection element and the vertical direction is between 30° and 60°, thereby detecting and providing early warning of the distance between the track wheel and the end of the track.

[0029] In some embodiments, in step S5, when any detection parameter continuously exceeds the warning threshold but does not reach the emergency shutdown threshold, it is determined to be a warning state, and the audible and visual alarm is triggered to issue a warning, but the tunneling machine does not stop.

[0030] When any detection parameter exceeds the emergency shutdown threshold, or when two or more detection parameters simultaneously exceed their respective warning thresholds, the system is immediately identified as being in a dangerous state, triggering an emergency shutdown without delay. Attached Figure Description

[0031] Figure 1 This is an installation diagram of the anti-derailment protection system for the transfer bridge of a coal mine roadheader according to an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the detection component of the anti-derailment protection system for the transfer bridge of a coal mine roadheader according to an embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the working status of the detection component of the anti-derailment protection system for the transfer bridge of a coal mine roadheader according to an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the working status of the detection component of the anti-derailment protection system for the transfer bridge of a coal mine roadheader according to another embodiment of the present invention.

[0035] Figure label:

[0036] 100. Roadheader electrical control box,

[0037] 200. Tunneling machine, second transport.

[0038] 300. Cable tray for reloading

[0039] 400. Track wheel,

[0040] 500, Track,

[0041] 600. Emergency stop button.

[0042] 1. Testing component; 11. Installation part; 12. Testing part; 121. First testing component; 122. Second testing component; 123. Third testing component. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0044] like Figures 1-4 As shown, the anti-derailment protection system for the transfer bridge of a coal mine roadheader in this embodiment of the invention includes: detection component 1.

[0045] The detection component 1 includes a mounting part 11 and a detection part 12. The mounting part 11 is connected to the transfer bridge 300 and arranged adjacent to the track wheel 400 of the transfer bridge 300. The detection part 12 is connected to the mounting part 11 and is arranged on the side of the mounting part 11 adjacent to the track wheel 400. The detection part 12 is electrically connected to the roadheader control box 100. The roadheader control box 100 is used to provide power to the detection part 12, and the detection part 12 is used to control the emergency stop button 600 of the roadheader control box 100. The detection part 12 is used to detect a first detection parameter and a second detection parameter. The first detection parameter includes at least the distance between the detection part 12 and the track 500, and the second detection parameter includes at least the distance between the detection part 12 and the adjacent equipment in the circumferential direction of the track wheel 400. Based on the detection information, the detection part 12 analyzes and controls the operating status of the emergency stop button 600 of the roadheader control box 100.

[0046] Specifically, such as Figures 1-3 As shown, the mounting part 11 can be directly connected to the transfer bridge 300 via a detachable method such as a threaded connection, ensuring that the detection component 1 moves synchronously with the transfer bridge 300. The upper end of the transfer bridge 300 is connected to the secondary transport 200 of the roadheader. Of course, the design of the mounting part 11 must take into account its location near the track wheel 400 to accurately detect the state between the track wheel 400 and the track 500. The detection part 12 is connected to the mounting part 11 and is located on the side of the mounting part 11 closest to the track wheel 400. The detection part 12 is responsible for collecting data and transmitting it to the roadheader's electrical control box 100.

[0047] Understandably, the detection unit 12 is electrically connected to the roadheader's control box 100. This ensures that the detection unit 12 can obtain power from the control box and send control signals to it. The detection unit 12 controls the emergency stop button 600 in the roadheader's control box 100. When an abnormality is detected in the track 500, the detection unit 12 sends a signal to the control box, which then activates the emergency stop button 600, causing the roadheader to stop immediately.

[0048] In other words, the anti-derailment protection system for the transfer bridge of the coal mine roadheader in this embodiment of the invention utilizes the detection component 1 to monitor the status of the track 500 of the transfer bridge 300 in real time, promptly capturing abnormal changes in the track 500 or track wheels 400 caused by factors such as rock bursts. Once an abnormality is detected in the track 500 or track wheels 400, the system can respond quickly, controlling the emergency stop button 600 via the electrical control box to immediately stop the operation of the roadheader, avoiding equipment damage and personnel injury due to delayed response. Furthermore, through automated monitoring and control, the system's reliability is higher than that of manual monitoring and basic mechanical limit devices, reducing the possibility of human error and equipment failure.

[0049] Therefore, the anti-derailment protection system for the transfer bridge of the coal mine roadheader in this embodiment of the invention can adapt to the complex and varied geological conditions underground, especially coal seams prone to rock bursts, and provides a guarantee for the safe operation of the roadheader in harsh environments.

[0050] In some embodiments, the detection unit 12 includes a first detection element 121 and a second detection element 122. The first detection element 121 is arranged vertically toward the track 500, and the second detection element 122 is arranged horizontally toward the tail end of the track 500.

[0051] It is understandable that, such as Figures 1-3 As shown, the first detection element 121 is arranged vertically toward the track 500 to detect changes in the track 500 in the vertical direction, such as the lifting or sinking of the track 500. This arrangement allows the system to monitor the vertical displacement of the track 500 in real time due to factors such as impact pressure, thereby determining whether an anomaly has occurred in the track 500.

[0052] The second detection element 122 is arranged horizontally toward the tail end of the track 500 to detect changes in the track 500 in the horizontal direction. For example, if the tunnel boring machine 200 shifts as a whole under the influence of rock pressure, the data detected by the second detection element 122 in the horizontal direction will fluctuate. Or, if there is an obstruction at the tail end of the track 500, the monitoring data of the second detection element 122 will change non-linearly. Then the system can determine whether the track 500 has moved or been obstructed.

[0053] In other words, the combined use of the first and second detection components 122 provides a three-dimensional monitoring function, enabling comprehensive monitoring of the track 500's status from both vertical and horizontal dimensions. By comprehensively analyzing the data collected by the two detection components, the system can more accurately determine the real-time status of the track 500, thereby improving detection accuracy. The coordinated use of the two detection components allows the system to detect minute changes in the track 500 in advance, thus providing early warnings and preventing accidents.

[0054] Furthermore, the use of two detection elements to detect from multiple aspects makes the system highly adaptable to different types of track 500 anomalies. Whether it is track 500 changes caused by rock bursts or other reasons, the system can effectively monitor them.

[0055] In some embodiments, the detection unit 12 further includes a third detection element 123, which is arranged between the first detection element 121 and the second detection element 122 in the vertical direction, and the third detection element 123 is arranged at an angle.

[0056] Understandably, the third detection element 123 is arranged vertically between the first detection element 121 and the second detection element 122, and is arranged at an angle. The third detection element 123 is used to detect the distance from the third detection element 123 to the end of the track 500, and can provide additional monitoring data, especially when the track 500 may be twisted or wavy.

[0057] In other words, when the track wheel 400 moves toward the end of the track 500, when the track wheel 400 is far from the end of the track 500, the third detection element 123 can detect the distance between the third detection element 123 and the track 500; when the track wheel 400 is close to the end of the track 500, the detection data of the third detection element 123 will suddenly change, thereby determining that the track wheel 400 is about to move to the end of the track 500.

[0058] Similarly, when track 500 may undergo twisting or wavy changes, the third detection element 123 can also provide additional monitoring data.

[0059] Preferably, the angle between the extension direction of the third detection element 123 and the extension direction of the first detection element 121 is greater than or equal to 30° and less than or equal to 60°.

[0060] Understandably, the angle selection between the third detection element 123 and the second detection element 122 can affect the distance between the track wheel 400 and the tail end of the track 500 (i.e., the warning distance), and ensure that the set warning distance facilitates operation of the track wheel 400, thus avoiding accidents. Therefore, a reasonable angle helps reduce misjudgments caused by mutual interference between detection elements, improving the reliability of the system.

[0061] In other embodiments, there are multiple third detection elements 123, which are arranged at intervals along the vertical direction.

[0062] It is understandable that, such as Figure 4 As shown, the multiple third detection elements 123 are arranged at intervals so that the tilt angle of each third detection element 123 is different. Therefore, multiple third detection elements 123 can be used to provide early warning of the distance between the track wheel 400 and the tail end of the track 500 in stages.

[0063] In other words, by comprehensively analyzing data from multiple detection points, the system can more accurately determine the state of track 500, improving detection precision. The use of multiple detection points helps reduce errors caused by the limitations of a single detection point, thus enhancing system reliability.

[0064] It should be noted that the first detection element 121, the second detection element 122 and the third detection element 123 may include one or more of the following: inclinometer, laser rangefinder, electromagnetic rangefinder, gravity sensor, ultrasonic sensor and photoelectric sensor.

[0065] In some embodiments, the coal mine roadheader transfer bridge anti-derailment protection system of the present invention further includes an information processing component (not shown in the figure) and an early warning component (not shown in the figure). The information processing component is connected to the detection component 1 to collect and process the data information detected by the detection component 1. If the data information exceeds the early warning value, the information processing component sends an emergency stop instruction to the emergency stop button 600 and sends a warning message to the early warning component, and the early warning component sends a warning signal.

[0066] Understandably, the information processing component is connected to the detection component 1, collecting and processing the data detected by the detection component 1. The information processing component is responsible for analyzing the detected data and determining whether the data exceeds a preset warning value. If the data exceeds the warning value, the information processing component will send an emergency stop instruction to the emergency stop button 600 and issue a warning message to the warning component.

[0067] The early warning component receives warning information from the information processing component. The early warning component issues warning signals, which can be visual signals (such as flashing lights), auditory signals (such as alarm sounds), or other types of warning methods, to notify operators of potential safety risks.

[0068] The following describes a method for preventing derailment of the transfer bridge of a coal mine roadheader according to an embodiment of the present invention.

[0069] The method for preventing derailment of the transfer cable tray of a coal mine roadheader according to this invention is implemented using the coal mine roadheader transfer cable tray anti-derailment protection system of any of the above embodiments, and includes the following steps:

[0070] S1. Arrange detection components on one side of the transfer cable tray's track wheels in the direction of travel. It is understood that detection components can be arranged at different positions depending on the direction of movement of the transfer cable tray. Alternatively, multiple detection components can be arranged circumferentially around the track wheels to ensure that the detection components can monitor the track wheel's movement trajectory and the track's condition.

[0071] S2. Adjust the arrangement of the detection components and determine the orientation of the first and second detection components to ensure that the detection components can accurately capture the vertical and horizontal changes of the track.

[0072] S3. Simulate movement and collect detection information from the detection components under simulated conditions. Based on the detection information during the simulation, determine the data safety threshold range. It can be understood that by simulating movement, the system can collect detection data under various conditions. Then, based on the detection information during the simulation, determine the data safety threshold range. These thresholds will be used in subsequent real-time monitoring to determine whether the track wheel's condition is normal.

[0073] S4. Real-time detection and data collection: Based on the collected detection parameters, a multi-parameter fusion analysis model is established, and the real-time data is compared and analyzed with a preset safety threshold range to determine whether the track wheel's operating status is abnormal. In essence, the system continuously monitors the track wheel's operating status and collects relevant detection parameters. Based on the collected detection parameters, a multi-parameter fusion analysis model is established, and the real-time data is compared and analyzed with a preset safety threshold range. In this way, the system can determine whether the track wheel's operating status is abnormal in real time.

[0074] S5. When a tendency to derail or abnormal displacement of the track wheel is detected, immediately send a control signal to the emergency stop button of the tunnel boring machine's electrical control box to execute an emergency stop operation.

[0075] S6. Simultaneously with the emergency stop operation, activate the early warning system to issue multi-level warning signals. These warning signals can be visual, audible, or other types of signals, with the aim of quickly notifying operators and on-site personnel so that necessary preventative measures can be taken.

[0076] In some embodiments, the detection information includes a first detection parameter and a second detection parameter. The first detection parameter is collected by a first detection element arranged in a vertical direction to monitor the lifting or sinking displacement of the track wheel. The second detection parameter is collected by a second detection element arranged in a horizontal direction to monitor the lateral offset or lateral displacement of the track wheel. By combining the changing trends and coupling relationship of the first and second detection parameters, the overall lifting of the transfer cable tray and the unilateral torsional deformation are distinguished.

[0077] Understandably, by comprehensively analyzing the two detection parameters, the system can more accurately determine the motion state of the transfer cable tray, whether it is overall lifting or unilateral torsional deformation. Based on the analysis results, corresponding preventive measures can be taken. For example, when unilateral torsional deformation is detected, the position of the transfer cable tray can be adjusted to prevent further deformation.

[0078] Furthermore, by accurately assessing and taking preventative measures, it is possible to improve the safety of coal mine operations, reduce the risk of equipment damage and personnel injury, adapt to different types of track deformation, and enhance adaptability to complex working conditions.

[0079] In some embodiments, step S2 further includes arranging a third detection element, which is used to provide a third detection parameter. The third detection parameter is collected by the inclined third detection element and is used to monitor the relative position change between the track wheel and the tail of the track. The angle between the extension direction of the third detection element and the vertical direction is between 30° and 60°, thereby detecting and warning of the position of the track wheel from the tail of the track.

[0080] Understandably, the introduction of the third detection element enables the system to monitor the track's state in three-dimensional space, which is crucial for comprehensively capturing any abnormal changes in the track. The tilted arrangement of the third detection element helps the system detect anomalies caused by complex conditions such as track twisting or wavy deformation, improving detection accuracy.

[0081] In other words, by comprehensively analyzing the data collected by the first, second, and third detection devices, the system can more accurately diagnose the type and extent of track faults, thereby enabling more effective countermeasures. The introduction of the third detection device allows the system to adapt to more complex operating conditions, such as coal seam inhomogeneity and abrupt changes in geological conditions, enhancing the system's adaptability and robustness. Three-dimensional monitoring reduces false alarms and missed alarms caused by monitoring blind spots, improving the system's reliability.

[0082] In some embodiments, in step S5, when any detection parameter continuously exceeds the warning threshold but does not reach the emergency shutdown threshold, it is determined to be a warning state, and the audible and visual alarm is triggered to issue a warning, but the tunneling machine does not stop; when any detection parameter exceeds the emergency shutdown threshold, or two or more detection parameters simultaneously exceed their respective warning thresholds, it is immediately determined to be a dangerous state, and an emergency shutdown without delay is triggered.

[0083] Understandably, the system can respond in stages based on the degree to which detected parameters exceed limits, ranging from early warning to emergency shutdown, ensuring appropriate measures are taken at different risk levels. In other words, through the early warning mechanism, the system can issue a warning before the condition of the track wheels deteriorates to a dangerous level, thereby avoiding potential accidents.

[0084] In other words, the early warning system can reduce accidental shutdowns caused by minor exceedances, maintaining operational continuity. In hazardous situations, the system can immediately execute an emergency shutdown, ensuring the roadheader stops operating in the shortest possible time and protecting personnel and equipment safety. The early warning and emergency shutdown mechanisms help optimize workflows, ensuring increased production efficiency while prioritizing safety.

[0085] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0087] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0088] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0089] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0090] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A protection system for preventing derailment of a transfer bridge on a coal mine roadheader, characterized in that, include: The detection assembly includes a mounting section and a detection section. The mounting section is connected to a transfer cable tray and arranged adjacent to the track wheels of the transfer cable tray. The detection section is connected to the mounting section and is located on the side of the mounting section adjacent to the track wheels. The detection unit is electrically connected to the roadheader's electrical control box. The roadheader's electrical control box supplies power to the detection unit, and the detection unit controls the emergency stop button of the roadheader's electrical control box. The detection unit is used to detect a first detection parameter and a second detection parameter. The first detection parameter includes at least the distance between the detection unit and the track, and the second detection parameter includes at least the distance between the detection unit and the adjacent equipment in the circumferential direction of the track wheel. Based on the detection information, the unit analyzes and controls the operation status of the emergency stop button of the tunnel boring machine's electrical control box.

2. The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to claim 1, characterized in that, The detection unit includes a first detection element and a second detection element. The first detection element is arranged vertically toward the track, and the second detection element is arranged horizontally toward the tail end of the track.

3. The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to claim 2, characterized in that, The detection unit further includes a third detection element, which is arranged between the first and second detection elements in the vertical direction, and the third detection element is arranged at an angle.

4. The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to claim 3, characterized in that, The angle between the extension direction of the third detection element and the extension direction of the first detection element is greater than or equal to 30° and less than or equal to 60°.

5. The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to claim 3, characterized in that, There are multiple third detection elements, and the multiple third detection elements are arranged at intervals along the vertical direction.

6. The anti-derailment protection system for the transfer bridge of a coal mine roadheader according to claim 4 or 5, characterized in that, It also includes an information processing component and an early warning component. The information processing component is connected to the detection component to collect and process the data information detected by the detection component. If the data information exceeds the early warning value, the information processing component sends an emergency stop instruction to the emergency stop button and a warning message to the early warning component, which then issues a warning signal.

7. A method for preventing derailment of a transfer cable tray in a coal mine roadheader, wherein the method utilizes the anti-derailment protection system for the transfer cable tray of a coal mine roadheader as described in any one of claims 1-6, characterized in that... Includes the following steps: S1. Arrange detection components on one side of the track wheels of the transfer bridge in the direction of travel; S2. Adjust the arrangement of the detection components and determine the orientation of the first and second detection components; S3. Simulate movement and collect detection information from the detection components in the simulation state. Based on the detection information during the simulation process, determine the data security threshold range. S4. Real-time detection and data collection; based on the collected detection parameters, establish a multi-parameter fusion analysis model; compare and analyze the real-time data with the preset safety threshold range; and determine in real time whether the running status of the track wheel is abnormal. S5. When a tendency to derail or abnormal displacement of the track wheel is detected, immediately send a control signal to the emergency stop button of the tunneling machine's electrical control box to execute an emergency stop operation; S6. While the emergency stop operation is being performed, the early warning system is activated to issue multi-level warning signals.

8. The method for preventing derailment of the transfer bridge of a coal mine roadheader according to claim 7, characterized in that, The detection information includes a first detection parameter and a second detection parameter. The first detection parameter is collected by a first detection element arranged in a vertical direction and is used to monitor the lifting or sinking displacement of the track wheel. The second detection parameter is collected by a second detection element arranged in the horizontal direction and is used to monitor the lateral offset or axial displacement of the track wheel; By combining the changing trends and coupling relationship of the first and second detection parameters, the overall lifting and unilateral torsional deformation of the transfer cable tray can be distinguished.

9. The method for preventing derailment of the transfer bridge of a coal mine roadheader according to claim 7, characterized in that, In step S2, a third detection element is also arranged. The third detection element is used to provide a third detection parameter. The third detection parameter is collected by the inclined third detection element and is used to monitor the relative position change between the track wheel and the tail of the track. The angle between the extension direction of the third detection element and the vertical direction is between 30° and 60°, thereby detecting and providing early warning of the distance between the track wheel and the end of the track.

10. The method for preventing derailment of the transfer bridge of a coal mine roadheader according to claim 7, characterized in that, In step S5, when any detection parameter continuously exceeds the warning threshold but does not reach the emergency shutdown threshold, it is determined to be a warning state, and the audible and visual alarm is triggered to issue a warning, but the tunneling machine does not stop. When any detection parameter exceeds the emergency shutdown threshold, or when two or more detection parameters simultaneously exceed their respective warning thresholds, the system is immediately identified as being in a dangerous state, triggering an emergency shutdown without delay.

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