Safety door system for inclined roadway rail transportation

Abstract

The utility model provides a safety door system for inclined drift rail transportation, which comprises a door frame, a door body, a traction assembly and a regulation and control assembly, the door frame is arranged on the end face of a roadway, a sliding rail is arranged on the door frame, and the sliding rail extends along the vertical direction; the door body is slidably arranged on the sliding rail; the traction assembly comprises a driving motor, a traction rope and a pulley block, the pulley block is arranged on the door frame, the traction rope is wound around the pulley block, and the two ends of the traction rope are correspondingly connected to the output end of the driving motor and the door body; the regulation and control assembly comprises a monitoring module and a controller, the monitoring module, the driving motor and the controller are electrically connected, the monitoring module is used for monitoring the speed and distance of a transport vehicle in the roadway and sending the speed and distance to the controller, and the controller is used for controlling operation of the driving motor according to data sent by the monitoring module so as to achieve opening and closing of the door body. According to the safety door system for inclined roadway rail transportation, intelligent response can be conducted according to the speed and the distance of the transport vehicle, and the passing efficiency of the transport vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine transportation safety technology, specifically to a safety door system for inclined shaft track transportation. Background Technology

[0002] In inclined shaft rail transport systems, runaway mine cars frequently occur due to unexpected situations such as winch rope breakage and unhooking. These accidents not only cause serious damage to the transport equipment but also severely disrupt normal transport operations in the inclined shaft, and may even threaten the lives of workers. In related technologies, safety gates are typically installed in the roadway to prevent runaway accidents. However, these safety gates are usually manually controlled by cylinders. When a mine car is about to pass, the operator needs to manually operate the cylinder to open the safety gate to ensure its smooth passage. After the mine car has completely passed, the operator operates the cylinder again to close the safety gate, restoring the inclined shaft to its closed state. This manual control method not only requires high reaction speed and accuracy from the operator but also increases the operator's workload, reduces work efficiency, and poses certain safety hazards. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a safety gate system for inclined shaft rail transport, which can intelligently respond according to the speed and distance of the transport vehicle, thereby improving the throughput efficiency of the transport vehicle.

[0004] The safety door system for inclined shaft rail transport provided by this utility model includes a door frame, a door body, a traction assembly, and a control assembly. The door frame is located on the end face of the roadway and has a slide rail extending vertically. The door body is slidably mounted on the slide rail. The traction assembly includes a drive motor, a traction rope, and a pulley system. The pulley system is located on the door frame, and the traction rope is wound around the pulley system. One end of the traction rope is connected to the output end of the drive motor, and the other end is connected to the door body. The control assembly includes a monitoring module and a controller. The monitoring module, the drive motor, and the controller are electrically connected. The monitoring module monitors the speed and distance of the transport vehicle in the roadway and sends the data to the controller. The controller controls the operation of the drive motor based on the data sent by the monitoring module to open and close the door body.

[0005] In some embodiments, the door frame includes a horizontal bar and two opposing vertical bars, the two ends of which are connected to the vertical bars to form an H-shaped structure, and the horizontal bar is located at the top of the tunnel.

[0006] In some embodiments, the door frame further includes a plurality of guide wheel sets, which are spaced apart on the slide rail. Each guide wheel set includes a plurality of rollers, which are disposed on the inner side of the slide rail.

[0007] In some embodiments, the slide rail is provided with a limit switch, which is used to limit the movement of the door.

[0008] In some embodiments, the safety gate system for inclined track transport further includes a buffer assembly located at the bottom of the gate body. The buffer assembly includes a hydraulic damper and a deformable energy-absorbing block. The hydraulic damper is inclined at 45° to the bottom of the gate body, and the deformable energy-absorbing block has a honeycomb structure.

[0009] In some embodiments, the safety door system for inclined track transportation further includes an electromagnetic locking assembly, which includes a braking block and a magnetic block. The braking block is electrically connected to the control assembly, the magnetic block is disposed on the door body, and the braking block is disposed on the door frame.

[0010] In some embodiments, the control component further includes an alarm module electrically connected to the controller. When the ratio of the speed of the transport vehicle to a preset safe speed is greater than 1.2, the controller activates the alarm module to issue a warning.

[0011] In some embodiments, the alarm module includes an audible alarm and / or an optical alarm.

[0012] In some embodiments, the monitoring module includes a speed sensor and a distance sensor. The speed sensor is used to detect the speed of the transport vehicle and transmit the speed to the controller. The distance sensor is used to monitor the distance from the transport vehicle to the door and transmit the distance to the controller.

[0013] In some embodiments, the speed sensor includes a Doppler radar velocimeter and / or an infrared photoelectric sensor, and the ranging sensor includes a laser TOF sensor and / or an ultrasonic sensor. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a safety door system for inclined track transportation provided in one embodiment of this utility model.

[0015] Figure 2 This is a top view schematic diagram of a safety door system for inclined track transportation provided in an embodiment of this utility model.

[0016] Figure 3 This is a side view schematic diagram of a safety door system for inclined track transportation provided in an embodiment of this utility model.

[0017] Figure 4 This is a structural schematic diagram of a safety door system for inclined track transportation provided in another embodiment of this utility model.

[0018] Figure 5 This is a schematic diagram of the connection of each module in a safety door system for inclined track transportation provided in an embodiment of this utility model.

[0019] Attached reference numerals: 100, Safety door system for inclined shaft rail transport; 200, Roadway;

[0020] 10. Door frame; 11. Slide rail; 12. Horizontal bar; 13. Vertical bar; 14. Fixed bar; 15. Limit switch;

[0021] 20. Door body;

[0022] 30. Traction assembly; 31. Drive motor; 32. Traction rope; 33. Pulley block;

[0023] 40. Control components; 41. Monitoring module; 42. Controller; 43. Alarm module;

[0024] 50. Buffer assembly; 51. Hydraulic damper; 52. Deformable energy-absorbing block;

[0025] 60. Electromagnetic locking assembly; 61. Braking block; 62. Magnetic block. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown 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.

[0027] like Figures 1 to 5As shown, one embodiment of this utility model provides a safety door system 100 for inclined shaft rail transport, which includes a door frame 10, a door body 20, a traction assembly 30, and a control assembly 40. The door frame 10 is located on the end face of the shaft 200, and a slide rail 11 is provided on the door frame 10. The slide rail 11 extends vertically, and the door body 20 is slidably mounted on the slide rail 11. The traction assembly 30 includes a drive motor 31, a traction rope 32, and a pulley block 33. The pulley block 33 is located on the door frame 10, and the traction rope 32 is wound around the pulley block 33. One end of the traction rope 32 is connected to the output end of the drive motor 31, and the other end of the traction rope 32 is connected to the door body 20. The control component 40 includes a monitoring module 41 and a controller 42. The monitoring module 41, the drive motor 31 and the controller 42 are electrically connected. The monitoring module 41 is used to monitor the speed and distance of the transport vehicle in the lane 200 and transmit the data to the controller 42. The controller 42 is used to control the operation of the drive motor 31 according to the data sent by the monitoring module 41 to realize the opening and closing of the door 20.

[0028] Specifically, the gate 20 is slidably mounted on the slide rail 11, allowing the passageway 200 to be opened or closed as needed to control the passage of transport vehicles. One end of the traction rope 32 is tightly connected to the output end of the drive motor 31, while the other end is connected to the gate 20. The pulley assembly 33 is mounted on the gate frame 10, facilitating the guidance and force transmission of the traction rope 32. When the drive motor 31 starts, the gate 20 opens or closes along the slide rail 11 by pulling the traction rope 32. Furthermore, the monitoring module 41 can monitor the speed and distance of the transport vehicles within the passageway 200 in real time and transmit this crucial data to the controller 42. The controller 42 then automatically adjusts the operating state of the drive motor 31 based on the data sent by the monitoring module 41, thereby achieving precise control over the opening and closing actions of the gate 20.

[0029] In summary, the safety gate system 100 for inclined track transportation provided in this embodiment of the present invention can intelligently respond according to the speed and distance of the transport vehicle. When the monitoring module 41 detects an approaching transport vehicle, the controller 42 quickly calculates the appropriate opening timing and amplitude, and instructs the drive motor 31 to start, which in turn drives the gate 20 to open slowly through the traction component 30, ensuring that the transport vehicle can pass smoothly. After the transport vehicle has passed, the controller 42 automatically instructs the gate 20 to close according to preset parameters, thereby restoring the initial blocking state.

[0030] In this embodiment, the monitoring module 41 includes a speed sensor and a distance sensor. The speed sensor is used to detect the speed of the transport vehicle and transmit the speed to the controller 42. The distance sensor is used to monitor the distance between the transport vehicle and the door 20 and transmit the distance to the controller 42.

[0031] The distance between the speed sensor and the gate 20 can be set to 50 meters, 60 meters, 100 meters, etc., so as to monitor and accurately measure the speed of the transport vehicle in real time. The distance sensor can be installed on the gate frame 10 to monitor the distance between the transport vehicle and the gate 20 in real time.

[0032] It is worth noting that the speed sensor and the distance sensor are not independent of each other, but rather cooperate and work together. The speed and distance information they provide is interrelated, and the controller 42 will perform comprehensive analysis and judgment based on this information to make more accurate and reliable decisions.

[0033] Furthermore, the speed measuring sensors include Doppler radar velocimeters and / or infrared photoelectric sensors, while the ranging sensors include laser TOF sensors and / or ultrasonic sensors, together forming an efficient and accurate monitoring system. Specifically, the Doppler radar velocimeter can measure the speed of an object by utilizing the frequency change generated by the relative motion between radar waves and the moving object. This speed measurement method has advantages such as a wide measurement range, high measurement accuracy, and strong anti-interference ability, making it particularly suitable for high-speed, dynamic monitoring of inclined track transport vehicles.

[0034] Infrared photoelectric sensors measure the speed of moving objects by emitting and receiving infrared light. When a transport vehicle passes by the infrared photoelectric sensor, it blocks some of the infrared light, triggering the sensor's signal output. By measuring the time difference or frequency change of the signal output, the system can calculate the speed of the transport vehicle. Infrared photoelectric sensors have advantages such as simple structure, low cost, and ease of installation, making them suitable for speed monitoring in various complex environments.

[0035] Laser TOF (Time of Flight) sensors measure the distance between an object and a sensor by utilizing the emission and reception time of a laser pulse. Laser TOF sensors offer advantages such as high measurement accuracy, fast measurement speed, and strong anti-interference capabilities, making them particularly suitable for precise measurement of the distance between a sloping track transport vehicle and the gate 20.

[0036] Ultrasonic sensors measure the distance to objects by utilizing the emission and reflection of ultrasonic waves. When an ultrasonic wave encounters an object, it is reflected. The sensor receives the reflected wave and calculates the distance to the object by the time difference between emission and reception. Ultrasonic sensors have advantages such as a wide measurement range, low cost, and ease of maintenance, making them suitable for distance measurement in various environments.

[0037] It is worth noting that speed sensors and distance sensors are not independent of each other, but can be used in combination to form a comprehensive and accurate monitoring system. In practical applications, appropriate sensor combinations can be selected based on the specific conditions of the inclined shaft rail transport vehicle and the requirements of the safety door system to achieve optimal performance and effectiveness.

[0038] In this embodiment, the speed sensor includes a Doppler radar speedometer and an infrared photoelectric sensor, and the ranging sensor includes a laser TOF sensor and an ultrasonic sensor, thus forming a dual monitoring system that helps improve monitoring accuracy.

[0039] like Figure 1 As shown, in some embodiments, the door frame 10 includes a horizontal bar 12 and two opposing vertical bars 13. The two ends of the horizontal bar 12 are connected to the vertical bars 13 to form an H-shaped structure. The horizontal bar 12 is located at the top plate of the tunnel 200, so that the door frame 10 completely covers the width of the tunnel 200, providing sufficient space for the movement of the transport vehicle.

[0040] Furthermore, the door frame 10 also includes a fixing rod 14 connected to the vertical rod 13. At least part of the fixing rod 14 is inserted into the end face of the tunnel 200 to fix the door frame 10, so that the door frame 10 can be firmly rooted in the tunnel 200 structure, effectively resisting external forces and vibrations from all sides, and ensuring the stability and safety of the door frame 10 during long-term use.

[0041] In this embodiment, the horizontal bar 12 and the vertical bar 13 can be connected by welding or bolting. The fixing bar 14 can be fixed to the end face of the tunnel 200 by bolting, thereby effectively resisting vibration and impact in the tunnel 200 and maintaining the stability and safety of the door frame 10.

[0042] In this embodiment, the width of the gate 20 is greater than the width of the passageway 200 to achieve complete blockage of the passageway 200. The gate 20 can be configured as a grid structure, which reduces weight while ensuring blockage of the passageway 200.

[0043] In some embodiments, the door frame 10 further includes multiple guide wheel sets, which are spaced apart on the slide rail 11. Each guide wheel set includes multiple rollers located on the inner side of the slide rail 11, thereby improving the smoothness and stability of the door 20 sliding on the slide rail 11. In this embodiment, there are six guide wheel sets, with three on each vertical rod 13. Each guide wheel set has two rollers, which are located on opposite sides of the slide rail 11. Of course, in some embodiments, the number of guide wheel sets and the number of rollers can be set to other values, which will not be elaborated here.

[0044] like Figure 4As shown, in some embodiments, a limit switch 15 is provided on the slide rail 11 to limit the movement stroke of the door 20. In this embodiment, two limit switches 15 are provided, one at each end of the slide rail 11. When the door 20 slides on the slide rail 11 and approaches the limit switch 15, the door 20 triggers the limit switch 15, thereby sending a signal or performing a corresponding action. This signal or action is transmitted to the controller 42 in the control assembly 40. The controller 42 immediately adjusts the operating state of the drive motor 31 according to the received signal or action command, so that the door 20 stops sliding or slides in the reverse direction to ensure that the door 20 does not exceed the predetermined stroke range.

[0045] In some embodiments, the safety gate system 100 for inclined track transport further includes a buffer assembly 50, which is disposed at the bottom of the gate body 20. The buffer assembly 50 includes a hydraulic damper 51 and a deformable energy-absorbing block 52. The hydraulic damper 51 is inclined at 45° to the bottom of the gate body 20, and the deformable energy-absorbing block 52 has a honeycomb structure.

[0046] Specifically, the buffer assembly 50, through the hydraulic damper 51 and the deformable energy-absorbing block 52, can effectively absorb and mitigate the impact force, achieving a dual buffering effect. The hydraulic damper 51 is inclined at 45° to the bottom of the door body 20, which considers both the optimal working state of the hydraulic damper 51 under stress and ensures that it can fully utilize the weight and inertia of the door body 20 itself, converting the impact force into the flow resistance of the hydraulic oil inside the damper, thereby achieving effective energy absorption.

[0047] The deformable energy-absorbing block 52 adopts a unique honeycomb structure design, which not only has the characteristics of high strength and lightweight, but also can undergo controllable deformation when subjected to impact, thereby absorbing a large amount of energy. That is, each unit of the honeycomb structure is like a tiny energy absorber. When subjected to external force, these units will deform in sequence, dispersing the impact force and converting it into heat energy and other forms of energy, thereby protecting the door 20 and the surrounding structure from damage.

[0048] like Figure 4 As shown, in some embodiments, the safety door system 100 for inclined track transportation also includes an electromagnetic locking component 60, which includes a braking block 61 and a magnetic block 62. The braking block 61 is electrically connected to the control component 40, the magnetic block 62 is disposed on the door body 20, and the braking block 61 is disposed on the door frame 10, thereby jointly realizing the safety locking function of the door body 20.

[0049] Among them, the brake block 61, as the active part of the electromagnetic locking component 60, is electrically connected to the control component 40. This means that the working state of the brake block 61 (i.e., locked or unlocked) can be remotely controlled by the controller 42 in the control component 40 according to preset conditions or external instructions. This not only improves the automation level of the system, but also makes the locking and unlocking process of the door 20 more flexible and controllable.

[0050] The magnetic block 62, as the passive part of the electromagnetic locking assembly 60, has a strong magnetic attraction force and can form a stable magnetic connection with the brake block 61. When the brake block 61 is activated and energized by the controller 42, it generates a magnetic field opposite to that of the magnetic block 62, thereby creating a strong attraction force with the magnetic block 62, firmly locking the door 20 to the door frame 10. This not only ensures safety and reliability but also resists external forces and vibrations from all directions, ensuring that the door 20 will not be accidentally opened by external forces when locked.

[0051] like Figure 4 and Figure 5 As shown, in some embodiments, the control component 40 further includes an alarm module 43, which is electrically connected to the controller 42. When the ratio of the speed of the transport vehicle to the preset safe speed is greater than 1.2, the controller 42 activates the alarm module 43 to issue a warning.

[0052] Specifically, the alarm module 43, as an important component of the control component 40, is electrically connected to the controller 42. This means that the operating status of the alarm module 43 (i.e., whether it issues an early warning signal) can be intelligently controlled by the controller 42 based on preset conditions or external signals. This design not only improves the intelligence level of the system but also makes the triggering of the alarm module 43 more precise and controllable.

[0053] In the control component 40, the controller 42 is configured to monitor the speed of the transport vehicle and compare it with a preset safe speed. When the ratio of the transport vehicle's speed to the preset safe speed is greater than 1.2, that is, when the transport vehicle's speed exceeds 1.2 times the safe speed, the controller 42 will immediately identify this abnormal situation and activate the alarm module 43 to issue a warning signal.

[0054] Furthermore, the alarm module 43 includes an audible alarm and / or an optical alarm. The audible alarm can immediately emit a clear and loud alarm sound upon detecting a system fault. This sound signal has strong penetrating power and is easily detected, ensuring that operators can hear the alarm information immediately, even in noisy coal mine operating environments, thus enabling them to quickly take action to troubleshoot and handle the fault.

[0055] A light alarm can indicate a system malfunction by emitting a bright, flashing light signal. This light signal is visually appealing and easy to identify, ensuring that operators can clearly see the alarm information even in low light or obstructed conditions.

[0056] In this embodiment, the alarm module 43 is equipped with both an audible alarm and a visual alarm, forming a dual alarm mechanism. This not only improves the redundancy and reliability of alarm information but also enhances the operator's alertness and response speed through the dual stimulation of sound and light signals. When a system malfunction occurs, both the audible and visual alarms will activate simultaneously, conveying the fault information to the operator in the most direct and effective way. This ensures that they can quickly take measures to troubleshoot and handle the fault, thereby minimizing the impact of the fault on production operations.

[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0058] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0060] In this utility model, 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," "on top of," and "over" 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.

[0061] In this utility model, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. 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.

[0062] 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 safety door system for inclined shaft rail transport, characterized in that, The system includes a door frame, a door body, a traction assembly, and a control assembly. The door frame is located on the end face of the tunnel and has a slide rail extending vertically. The door body is slidably mounted on the slide rail. The traction assembly includes a drive motor, a traction rope, and a pulley system. The pulley system is located on the door frame, and the traction rope is wound around the pulley system. One end of the traction rope is connected to the output end of the drive motor, and the other end is connected to the door body. The control assembly includes a monitoring module and a controller. The monitoring module, the drive motor, and the controller are electrically connected. The monitoring module monitors the speed and distance of the transport vehicle within the tunnel and sends the data to the controller. The controller controls the operation of the drive motor based on the data sent by the monitoring module to open and close the door body.

2. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The door frame includes a horizontal bar and two opposing vertical bars. The two ends of the horizontal bar are connected to the vertical bars to form an H-shaped structure, and the horizontal bar is located at the top of the tunnel.

3. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The door frame also includes multiple guide wheel sets, which are spaced apart on the slide rail. Each guide wheel set includes multiple rollers, which are located on the inner side of the slide rail.

4. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The slide rail is equipped with a limit switch, which is used to limit the movement of the door.

5. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The inclined shaft rail transport safety door system also includes a buffer assembly, which is located at the bottom of the door body. The buffer assembly includes a hydraulic damper and a deformable energy-absorbing block. The hydraulic damper is inclined at 45° to the bottom of the door body, and the deformable energy-absorbing block has a honeycomb structure.

6. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The inclined shaft track transport safety door system also includes an electromagnetic locking component, which includes a braking block and a magnetic block. The braking block is electrically connected to the control component, the magnetic block is located on the door body, and the braking block is located on the door frame.

7. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The control component also includes an alarm module, which is electrically connected to the controller. When the ratio of the speed of the transport vehicle to the preset safe speed is greater than 1.2, the controller activates the alarm module to issue a warning.

8. The safety door system for inclined shaft rail transport according to claim 7, characterized in that, The alarm module includes an audible alarm and / or an optical alarm.

9. The safety door system for inclined shaft rail transport according to claim 1, characterized in that, The monitoring module includes a speed sensor and a distance sensor. The speed sensor is used to detect the speed of the transport vehicle and transmit the speed to the controller. The distance sensor is used to monitor the distance from the transport vehicle to the door and transmit the distance to the controller.

10. The safety door system for inclined shaft rail transport according to claim 9, characterized in that, The speed sensor includes a Doppler radar velocimeter and / or an infrared photoelectric sensor, and the ranging sensor includes a laser TOF sensor and / or an ultrasonic sensor.

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