Brake distance measuring device and method for coal mine overhead passenger device

Abstract

The present application relates to the technical field of coal mine overhead passenger device, in particular to a coal mine overhead passenger device brake distance measuring device and a brake distance measuring method.The technical scheme of the present application comprises a moving hanging rod, a brake distance detection assembly and a brake circuit;the bottom of the moving hanging rod is provided with a counterweight, the middle part is provided with a punch rod, the top part is on a steel wire rope, the upper end is fixedly connected with an infrared emitter, the infrared emitter is provided with a battery, the brake circuit is connected with a wheel edge brake mechanism and a main motor of a driving wheel;the brake distance detection assembly comprises upper and lower arranged winding rollers, a scale winding tape is commonly wound between the two winding rollers, an infrared receiver is installed on the upper part of the winding roller, and the infrared receiver is connected with the brake circuit.In the present application, when the infrared emitter is displaced to the infrared receiver, the brake mechanism is braked, the moving hanging rod is further moved by a distance, the scale winding tape is pulled to be released from the winding roller, and thus the brake distance is recorded.

Description

Technical Field

[0001] This invention relates to the field of aerial passenger transport equipment in coal mines, specifically to a method for measuring the braking distance of an aerial passenger transport equipment braking distance measuring device. Background Technology

[0002] The aerial passenger transport system in coal mines, also known as the "monkey car," is mainly used to transport personnel in inclined and horizontal mine shafts, taking workers into the mine for work. Its working principle is similar to that of a ground-based tourist cableway. It is generally composed of steel wire ropes, an aerial frame for the steel wire ropes, support rollers, drive wheels, steering wheels, and a braking mechanism. Passengers move forward on the steel wire ropes by sitting on the hanging poles.

[0003] During operation, the worker sits on the seat cushion of the hanging pole with their feet on the foot pedals. The motor then starts, driving the drive wheel to rotate. The rotation of the drive wheel moves the wire rope, which in turn moves the support frame, pulling the worker deeper into the mine. During this process, unexpected situations can occur, requiring emergency braking of the coal mine aerial personnel carrier. The emergency braking system of the coal mine aerial personnel carrier is a crucial component for ensuring worker safety. Because this device involves the vertical transport of personnel, especially in complex environments such as inclined and horizontal tunnels within the mine, the reliability of the emergency braking system directly affects the miners' lives. Therefore, before using the coal mine aerial personnel carrier, the emergency braking system needs to be tested multiple times to check the braking distance of the wire rope. Currently, there is no specialized equipment for testing the braking distance of the aerial personnel carrier's wire rope. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a braking distance measuring device and a method for measuring the braking distance of aerial passenger transport devices in coal mines, thereby enabling the detection of the braking distance of aerial passenger transport devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a braking and ranging device for an overhead passenger transport device in a coal mine, comprising a steel wire rope, a support roller, and a suspension frame. The support roller is mounted on the suspension frame, the steel wire rope rests on the support roller, and the steel wire rope is arranged around a drive wheel and a steering wheel. The drive wheel or steering wheel is equipped with a wheel-side braking mechanism.

[0006] It also includes a motion suspension rod, a braking distance detection component, and a braking circuit;

[0007] The motion hanging rod has a counterweight at the bottom, a punch bar in the middle, and a top attached to a steel wire rope. An infrared transmitter with a battery is fixedly connected to the upper end of the motion hanging rod.

[0008] The braking distance detection component includes two take-up rollers arranged vertically. The take-up rollers are rotatably inserted into the detection bracket via a rotating shaft. The upper part of the detection bracket is fixed to the suspension frame. An infrared receiver is fixedly installed on the top of the detection bracket. The infrared receiver is connected to the braking circuit. The braking circuit cable is connected to the wheel-side braking mechanism switch and the drive wheel main motor switch.

[0009] The two take-up rollers are connected together to wind a graduated tape. The take-up rollers are equipped with an elastic take-up assembly inside. The elastic take-up assembly drives the graduated tape to wind and releases the graduated tape when an external force pulls on it. The distance between the outer diameters of the two take-up rollers is greater than the outer diameter of the punch rod, and the distance from the punch rod to the wire rope is equal to the distance from the middle position of the two take-up rollers to the wire rope.

[0010] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, a gear is coaxially fixedly connected to the rotating shaft, and two gears are meshed. One of the gears is coaxially fixedly connected to a traction roller. A reset assembly is provided at the rear of the detection bracket, and the reset assembly is connected to the traction roller.

[0011] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the reset assembly includes a spring fixedly connected to the top of the detection bracket, a slider fixedly connected to the lower end of the spring, a groove opened on the side wall of the detection bracket, the end of the slider being slidably disposed inside the groove, a traction rope fixedly connected to the lower end of the slider, and the lower end of the traction rope being fixedly connected to a traction roller.

[0012] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the shaft of the take-up roller is set perpendicular to the wire rope, the punch is set horizontally perpendicular to the wire rope, and when the punch passes between the two take-up rollers, the end of the punch does not contact or interfere with the detection frame, and the top of the detection frame is fixed on the suspended frame.

[0013] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the braking circuit includes a PLC, an energized relay, a circuit breaker relay, and an infrared receiver. The energized relay is connected to the solenoid valve on the hydraulic pipe of the brake hydraulic cylinder of the wheel-side braking mechanism. The circuit breaker relay is connected to the emergency stop switch on the main motor power supply circuit of the aerial passenger transport device. The infrared receiver is connected to the input terminal of the PLC, and the energized relay and the circuit breaker relay are connected to the output terminal of the PLC. After the PLC receives the signal sent by the infrared receiver, the energized relay sends an energizing signal to control the solenoid valve to operate, and the brake hydraulic cylinder of the wheel-side braking mechanism works to brake accordingly. At the same time, it sends a power-off signal to the circuit breaker relay, and the emergency stop switch of the main motor operates to cut off the power and stop the machine.

[0014] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the main motor of the aerial passenger transport device is located at the drive wheel end, the main shaft of the main motor is connected to the drive wheel, the wheel-side braking mechanism is a hydraulic braking mechanism, and the solenoid valve on the pipeline connected to the hydraulic cylinder of the hydraulic braking mechanism is connected to the aforementioned energized relay.

[0015] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the top of the moving hanging rod is fixed to the steel wire rope, the infrared transmitter is set on the top of the moving hanging rod with the transmitting signal end facing one side of the steel wire rope, the infrared receiver is located on the upper part of the detection bracket with the receiving end of the infrared receiver facing the direction of the steel wire rope, and the infrared transmitter and infrared receiver are at the same height as the vertical direction of the steel wire rope.

[0016] According to the aforementioned braking and ranging device for the aerial passenger transport device in coal mines, the punch rod has a rearward concave shape, forming a structure that facilitates the embedding of the scale tape. The opening of the concave shape is equipped with an anti-detachment rod, which is hinged to one side of the punch rod in the triangular concave shape. A torsion spring is installed on the hinge shaft. When the anti-detachment rod is impacted by the scale tape, it swings inward and resets under the action of the torsion spring.

[0017] The present invention discloses a method for measuring the braking distance of an aerial passenger transport device in coal mines, comprising the following steps.

[0018] 1) The infrared transmitter on the moving pole is powered on, and the moving pole is fixed to the steel wire rope. The distance between the fixed position and the braking distance detection component is greater than the running acceleration distance of the aerial passenger transport device.

[0019] 2) When the overhead passenger transport device starts to operate, the running speed of the wire rope reaches the working speed before reaching the braking distance detection component;

[0020] 3) As the moving rod moves with the wire rope and approaches the braking distance detection component, the infrared light emitted by the infrared transmitter is received by the infrared receiver. The infrared receiver sends a signal to the PLC that the infrared light has been received, and at the same time, the punch on the moving rod contacts the scale winding tape.

[0021] 4) The PLC processes the received infrared light signal and transmits the braking signal to the energizing relay and the de-energizing relay. The energizing relay opens the solenoid valve on the hydraulic pipe connected to the hydraulic cylinder of the wheel-side braking mechanism, providing braking hydraulic power to the hydraulic cylinder of the wheel-side braking mechanism. The wheel-side braking mechanism brakes the drive wheel. The de-energizing relay on the power supply circuit of the main motor of the aerial passenger vehicle receives the power-off signal, and the main motor of the aerial passenger vehicle is de-energized.

[0022] 5) As the moving rod moves with the wire rope and approaches the braking distance detection component, the punch passes between the two take-up rollers and pulls the scaled tape forward. The scaled tape is simultaneously pulled and released from the two take-up rollers.

[0023] 6) The wire rope stops under the braking of the wheel-side braking mechanism. At this time, the scaled reel is hung on the punch rod, and the distance that the scaled reel is pulled out is the braking distance of the aerial passenger transport device.

[0024] According to the braking distance measurement method, in step 5), the take-up roller is pulled and rotated during the release of the graduated tape, which drives the traction roller to rotate. The traction roller winds the traction rope, pulling the slider downward in the groove. The spring is stretched under the pull of the slider. When the wire rope stops, if the graduated tape is pulled out of excess due to inertia, and the take-up roller does not retract the graduated tape, the spring will pull the slider upward in the groove, pulling the traction rope to release on the traction roller, and driving the take-up roller to wind the excess graduated tape until the graduated tape is tightened and there is no sagging redundancy.

[0025] This invention provides a braking and ranging device for aerial passenger transport in coal mines, which has the following advantages:

[0026] In this invention, when the infrared transmitter moves to the infrared receiver, the controller transmits a signal to the braking mechanism to brake. Under the action of inertia, it will also move a certain distance. The moving rod pulls the scale tape, causing the scale tape to be released from the take-up roller, thereby recording the braking distance.

[0027] This invention uses physical structure for testing, ensuring structural reliability. It allows for timely testing of overhead passenger transport facilities after maintenance, improving operational efficiency. Attached Figure Description

[0028] Figure 1 This is a structural diagram of the braking and ranging device for the aerial passenger transport system in coal mines proposed in this invention.

[0029] Figure 2 This is a diagram showing the positional relationship between the braking distance detection component and the moving hanging rod of the braking distance measuring device for the overhead passenger transport device in coal mines proposed in this invention in the cross-sectional direction.

[0030] Figure 3 This is a structural diagram of the resetting assembly on the brake hanger of the braking distance measuring device for the aerial passenger transport device in coal mines proposed in this invention.

[0031] Figure 4 This is a structural diagram of the anti-detachment rod on the moving hanging rod of the braking and ranging device of the coal mine aerial passenger transport device proposed in this invention;

[0032] Figure 5 This is a diagram showing the connection of the braking circuit of the braking distance measuring device for the aerial passenger transport device in coal mines proposed in this invention.

[0033] In the diagram: 1. Suspension frame, 11. Support roller, 2. Drive wheel, 21. Wheel-side braking mechanism, 22. Main motor, 3. Wire rope, 4. Steering wheel, 5. Detection bracket, 51. Slide groove, 52. Infrared receiver, 6. Braking distance detection component, 61. Take-up roller, 62. Scaled tape winding, 63. Gear, 64. Shaft, 7. Traction roller, 8. Reset component, 81. Traction rope, 82. Slider, 83. Spring, 9. Motion rod, 91. Counterweight, 92. Punch rod, 921. Concave, 922. Anti-derailment rod, 93. Infrared transmitter. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figure 1 The invention shown here relates to a braking and ranging device for an aerial passenger transport system in a coal mine. The device includes an overhead steel wire rope 3, a support roller 11, and a suspension frame 1. The support roller 11 is mounted on the suspension frame 1, and the steel wire rope 3 rests on the support roller 11. The steel wire rope 3 is arranged around a drive wheel 2 and a steering wheel 4. The drive wheel 2 or steering wheel 4 is equipped with a wheel-side braking mechanism 21. In the aerial passenger transport system, the suspension frame 1 serves to mount the support roller 11, which guides and supports the steel wire rope 3, allowing it to run along a specific trajectory or direction. The rotation of the support roller 11 with the steel wire rope 3 allows the steel wire rope 3 to slide smoothly during operation, reducing the impact of friction and effectively bearing the downward load borne by the steel wire rope 3.

[0036] The structure for measuring braking distance in this invention includes a moving rod 9, a braking distance detection component 6, and a braking circuit.

[0037] Specifically, the braking circuit, upon receiving a braking signal, stops the main motor 22 of the overhead passenger vehicle and controls the wheel-side braking mechanism 21 to brake the drive wheel 2.

[0038] The motion hook-up bar 9 is an improvement on the passenger-carrying device. The original seat and footrests have been removed and replaced with a counterweight 91. The main body of the motion hook-up bar 9 is a column, with a punch 92 on one side of the middle section. The upper part is fixed to the steel wire rope 3, and an infrared transmitter 93 is fixed at the top. The infrared transmitter 93 has a battery to provide power to the infrared transmitter. The infrared receiver 52 is connected to the braking circuit, and the braking circuit electrical signal is connected to the wheel-side braking mechanism 21 and the main motor of the drive wheel.

[0039] The braking distance detection assembly 6 includes two take-up rollers 61 arranged vertically. The take-up rollers 61 are rotatably inserted into the detection bracket 5 via a rotating shaft 64. The upper part of the detection bracket 5 is fixed to the suspension frame 1. An infrared receiver 52 is fixedly installed on the top of the detection bracket 5. The infrared receiver 52 is connected to the braking circuit. The braking circuit is connected to the wheel-side braking mechanism 21 and the main motor of the drive wheel via an electrical signal.

[0040] Furthermore, a graduated tape 62 is wound together between the two take-up rollers 61. An elastic take-up assembly is located inside each take-up roller 61. This assembly winds the graduated tape 62 into a coil and releases it when pulled by external force. The outer diameter distance between the two take-up rollers 61 is greater than the outer diameter of the punch 92, and the distance from the punch 92 to the wire rope 3 is equal to the distance from the midpoint of the two take-up rollers 61 to the wire rope 3. The graduated tape 62 has distance graduations. The starting position of the graduations is wound around one take-up roller, and the reading extends towards the graduated tape 62 on the other take-up roller. The graduated tape 62 is made of high-strength fiber material and must not break during punch pulling; it must be non-elastic. Specifically, high-strength fiber materials can be used.

[0041] In terms of spatial structure, such as Figure 2 As shown, the shaft 64 of the take-up roller 61 is perpendicular to the wire rope 3, and the punch 92 is horizontally positioned perpendicular to the wire rope 3. When the punch 92 passes between the two take-up rollers 61, its end does not contact or interfere with the detection bracket 5. The top of the detection bracket 5 is fixed to the suspension frame 1. Specifically, the detection bracket 5 is fixed to the suspension frame 1 by a clamp, and the braking distance detection component 6 is close to the wire rope 3 but maintains a distance from it to avoid contact and interference.

[0042] When the moving rod 9 reaches the brake detection component 6, the wheel-side brake mechanism 21 brakes the drive wheel under the control of the brake circuit, the main motor stops, and the punch 92 contacts the middle of the graduated winding tape 62. Under inertia, the wire rope will move a certain distance, and the moving rod 9 moves along the wire rope. The punch 92 pulls the graduated winding tape 62, causing it to be released from the take-up roller 61. The braking distance is recorded by the length of the graduated winding tape 62 released. The braking distance is half the length of the graduated winding tape 62 released.

[0043] Furthermore, the top of the moving rod 9 is fixed to the wire rope 3, the infrared transmitter 93 is set on the top of the moving rod 9, the transmitting end faces one side of the wire rope 3, the detection bracket 5 is on the same side of the wire rope 3, the infrared receiver 52 is on the upper part of the detection bracket 5, the receiving end of the infrared receiver 52 faces the direction of the wire rope 3, the infrared transmitter 93 and the infrared receiver 52 are at the same vertical height as the wire rope 3, and the punch passes between the two take-up rollers in space.

[0044] Furthermore, a gear 63 is coaxially fixedly connected to the rotating shaft 64, and two gears 63 are meshed. A reset assembly 8 is provided at the rear of the detection bracket 5. One of the gears 63 is coaxially fixedly connected to a traction roller 7 at the rear of the detection bracket, and the reset assembly 8 is connected to the traction roller 7. The take-up roller 61 maintains a distance from the detection bracket 5 and the gear 63, and the distance should be long enough to avoid collision with the punch 92.

[0045] The reset assembly 8 in this device includes a spring 83 fixedly connected to the top of the detection bracket 5. A slider 82 is fixedly connected to the lower end of the spring 83. A groove 51 is formed on the side wall of the detection bracket 5, and the end of the slider 82 is slidably disposed inside the groove 51. A traction rope 81 is fixedly connected to the lower end of the slider 82, and the lower end of the traction rope 81 is fixedly connected to the traction roller 7. Two gears are used to transmit the rotation of the take-up roller 61 when it releases the graduated tape 62 to the reset assembly, providing the reset assembly with the power to continue resetting. That is, the traction rope of the reset assembly is wound around the traction roller 7, pulling the slider downwards in the groove, causing the spring to deform under the pull of the slider, thus continuing the resetting process.

[0046] When the graduated tape 62 is released, if it is overstretched, the reset assembly can drive the take-up roller 61 to rewind the graduated tape 62, preventing reading errors caused by the graduated tape 62 sagging. After measuring the reading, the graduated tape 62 is released, and the reset assembly drives the take-up roller 61 to rewind the graduated tape 62 again, preparing for the next test.

[0047] Both the reset assembly and the elastic winding assembly in the winding roller serve the purpose of winding the graduated tape 62, thereby increasing the winding power after the impact of the punch on the graduated tape 62.

[0048] In this embodiment, as Figure 4 As shown, the punch 92 has a rearward concave shape, forming a structure that facilitates the insertion of the graduated tape 62. An anti-detachment rod is located at the opening of the concave shape, and this rod is hinged to one side of the punch. A torsion spring is mounted on the hinge shaft. When the anti-detachment rod is impacted by the graduated tape 62, it swings inward towards the concave shape and returns to its original position under the action of the torsion spring. Specifically, the concave shape is a semi-circular or circular structure with a partial gap; the opening is the diameter of the semi-circle or the location of the missing part of the circle.

[0049] When the punch rod 92 comes into contact with the graduated tape 62, the anti-detachment rod is pulled by the graduated tape 62 and swings backward and inward. The graduated tape 62 is embedded in the concave part of the punch rod 92. Then the anti-detachment rod returns to its original position and blocks the opening of the concave structure, thus preventing the punch rod 92 from detaching after it is hooked onto the graduated tape 62.

[0050] Furthermore, such as Figure 5As shown, the braking circuit includes a PLC, an energized relay, a circuit breaker relay, and an infrared receiver 52. The energized relay is connected to the solenoid valve on the hydraulic pipe of the brake hydraulic cylinder of the wheel-side braking mechanism 21. The circuit breaker relay is connected to the emergency stop switch on the power supply circuit of the main motor 22 of the aerial passenger vehicle. The infrared receiver 52 is connected to the input terminal of the PLC, and the energized relay and the circuit breaker relay are connected to the output terminal of the PLC. After receiving the signal generated by the infrared receiver 52, the PLC sends an energized signal to the energized relay to control the solenoid valve to operate, and the brake hydraulic cylinder of the wheel-side braking mechanism 21 then operates to brake. At the same time, it sends a power-off signal to the circuit breaker relay, and the emergency stop switch of the main motor operates to cut off the power and stop the machine.

[0051] In a further implementation, the main motor 22 of the aerial passenger vehicle is located at the end of the drive wheel 2, and the main shaft of the main motor 22 is connected to the drive wheel 2. The wheel-side braking mechanism 21 is a hydraulic braking mechanism, and the solenoid valve on the pipeline connected to the hydraulic cylinder of the hydraulic braking mechanism is connected to the energized relay.

[0052] In this device, a support plate is fixedly connected to the lower end of the motion hook 9. Two guide pins are fixedly connected to the support plate, and a counterweight plate is sleeved on the guide pin. Nuts are threaded onto the guide pins. The number of counterweight plates can be adjusted to change the weight, which is convenient for simulating no-load, heavy-load, and other conditions to test the specific stopping distance after braking under different conditions.

[0053] This embodiment of the invention describes a method for measuring the braking distance of an overhead passenger transport device in a coal mine, comprising the following steps.

[0054] 1) The infrared transmitter 3 on the moving hanging pole 9 is powered on, and the top of the moving hanging pole 9 is fixed to the steel wire rope 3. The distance between the fixed position and the braking distance detection component 6 is greater than the distance that the aerial passenger transport device moves from zero speed to working speed.

[0055] 2) When the aerial passenger transport device starts to operate, the running speed of the wire rope 3 reaches the working speed before reaching the braking distance detection component 6;

[0056] 3) The moving rod 9 moves with the wire rope 3 and approaches the braking distance detection component 6. The infrared light emitted by the infrared transmitter 93 is received by the infrared receiver 52. The infrared receiver 52 sends the received infrared light signal to the PLC. At the same time, the punch 92 on the moving rod 9 contacts the scale winding tape 62.

[0057] 4) The PLC processes the received infrared light signal and transmits the braking signal to the energizing relay and the de-energizing relay. The energizing relay opens the solenoid valve on the hydraulic pipe connected to the hydraulic cylinder of the wheel-side braking mechanism 21, providing braking hydraulic power to the hydraulic cylinder of the wheel-side braking mechanism 21. The wheel-side braking mechanism 21 brakes the drive wheel 2. The relay on the power supply circuit of the main motor 22 of the aerial passenger vehicle receives the power-off signal, and the main motor 22 of the aerial passenger vehicle is de-energized.

[0058] 5) The moving rod 9 moves with the wire rope 3 and approaches the braking distance detection component 6. The punch 92 passes between the two take-up rollers 61 and pulls the scale winding 62 forward. The scale winding 62 is simultaneously pulled and released from the two take-up rollers 61. The take-up roller 61 is pulled and rotated as the scale winding 62 is released, which drives the traction roller 7 to rotate. The traction roller 7 winds the traction rope 81 and pulls the slider 82 downward in the groove 51. The spring 83 is stretched under the pull of the slider 82. When the wire rope 3 stops, if the scale winding 62 is pulled out of excess due to inertia and the take-up roller 61 does not retract the scale winding 62, the spring 83 will pull the slider 82 upward in the groove 51, pull the traction rope 81 to release on the traction roller, and drive the take-up roller 61 to wind the excess scale winding 62 until the scale winding 62 is taut and there is no sagging redundancy.

[0059] 6) The wire rope 3 stops under the braking of the wheel-side braking mechanism 21. At this time, the scale winding 62 is hung on the punch 92. The distance that the scale winding 62 is pulled out is the braking distance of the aerial passenger transport device.

[0060] After the measurement is completed, the graduated tape 62 is released from the recess of the punch 92, causing the punch 92 to separate from the graduated tape 62. At this time, the spring 83 releases its elastic force, pulling the slider 82 upward. The slider 82 drives the traction roller 7 to rotate through the traction rope 81, thereby causing the two gears 63 to rotate in opposite directions. Finally, the two take-up rollers 61 rotate in opposite directions to rewind the graduated tape 62, so that the graduated tape 62 returns to its original state, which is convenient for secondary testing or next use.

[0061] Furthermore, in order to simulate the operation of the overhead passenger transport device as much as possible and improve the accuracy of the measurement, multiple counterweight rods simulating passenger transport are also provided. Compared with the moving rod, the counterweight rods have removed the infrared emitter and the punch structure. Multiple counterweight rods are fixed at a certain distance between each other in the upward and downward directions of the wire rope 3 to simulate the weight of passenger transport as much as possible.

[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine overhead passenger device brake ranging device, comprising a steel wire rope (3), a supporting roller (11) and a suspended frame (1), the supporting roller (11) is arranged on the suspended frame (1), the steel wire rope (3) is on the supporting roller (11), the steel wire rope (3) is arranged around a driving wheel (2) and a steering wheel (4), and the driving wheel (2) or the steering wheel (4) is provided with a wheel edge brake mechanism (21). Characterized in that It further comprises a motion hanging rod (9), a brake distance detection assembly (6) and a brake circuit; The bottom of the motion hanging rod (9) is provided with a counterweight (91), the middle part is provided with a punch rod (92), and the top is on the steel wire rope (3); the upper end of the motion hanging rod (9) is fixedly connected with an infrared emitter (93), and the infrared emitter (93) is provided with a battery; The brake distance detection assembly (6) comprises two upper and lower winding rollers (61), the winding roller (61) is rotatably inserted into a detection hanging bracket (5) through a rotating shaft (64), the upper part of the detection hanging bracket (5) is fixed on the suspended frame (1), the top of the detection hanging bracket (5) is fixedly installed with an infrared receiver (52), the infrared receiver (52) is connected to the brake circuit, and the brake circuit cable is connected to the wheel edge brake mechanism (21) switch and the driving wheel main motor switch. A scale winding belt (62) is co-wound between the two winding rollers (61), the inside of the winding roller (61) is provided with an elastic winding assembly, the elastic winding assembly drives the scale winding belt (62) to wind, and releases the scale winding belt (62) when the scale winding belt (62) is pulled by external force, the outer diameter distance of the two winding rollers (61) is greater than the outer diameter of the punch rod (92), and the distance from the punch rod (92) to the steel wire rope (3) is equal to the distance from the middle position of the two winding rollers (61) to the steel wire rope (3).

2. The coal mine aerial passenger conveyance brake ranging device according to claim 1, characterized in that, The rotating shaft (64) is coaxially fixedly connected with a gear (63), the two gears (63) are meshingly arranged, and one of the gears (63) is coaxially fixedly connected with a traction roller (7); the rear part of the detection hanging bracket (5) is provided with a reset assembly (8), and the reset assembly (8) is connected with the traction roller (7).

3. The coal mine aerial passenger conveyance brake ranging device of claim 2, wherein: The reset assembly (8) comprises a spring (83) fixedly connected to the top of the detection hanging bracket (5), a sliding block (82) fixedly connected to the lower end of the spring (83), a sliding groove (51) formed in the side wall of the detection hanging bracket (5), and the end of the sliding block (82) is slidingly arranged in the sliding groove (51), and a traction rope (81) fixedly connected to the lower end of the sliding block (82).

4. The coal mine aerial passenger conveyor brake distance measuring device according to claim 1, characterized in that: The rotating shaft (64) of the winding roller (61) is perpendicular to the steel wire rope (3), the punch rod (92) is horizontally arranged and perpendicular to the steel wire rope (3), the end of the punch rod (92) does not interfere with the detection hanging bracket (5) when the punch rod (92) passes between the two winding rollers (61), and the top of the detection hanging bracket (5) is fixed on the suspended frame (1).

5. The coal mine aerial passenger device brake ranging device according to claim 1, characterized in that: The brake circuit comprises a PLC, an energizing relay, a disconnecting relay and an infrared receiver (52), the energizing relay is connected to the electromagnetic valve of the hydraulic cylinder of the wheel-side brake mechanism (21), the disconnecting relay is connected to the emergency stop switch of the power supply circuit of the main motor (22) of the aerial passenger conveying device, the infrared receiver (52) is connected to the input end of the PLC, and the energizing relay and the disconnecting relay are connected to the output end of the PLC.

6. The coal mine aerial passenger conveyor brake distance measuring device according to claim 5, characterized in that: The main motor (22) of the aerial passenger conveying device is located at the end of the driving wheel (2), the main shaft of the main motor (22) is connected to the driving wheel (2), the wheel-side brake mechanism (21) is a hydraulic brake mechanism, the electromagnetic valve of the hydraulic cylinder of the hydraulic brake mechanism is connected to the energizing relay, the PLC controls the electromagnetic valve to act after receiving the signal sent by the infrared receiver (52), the brake hydraulic cylinder of the wheel-side brake mechanism (21) works to brake at the same time, and the disconnecting relay is sent with a power-off signal, and the emergency stop switch of the main motor is actuated to stop working.

7. The coal mine aerial passenger conveyor brake ranging device according to claim 6, characterized in that: The top of the moving hanging rod (9) is fixed to the steel wire rope (3), the infrared emitter (93) is arranged at the top of the moving hanging rod (9), the signal emission end faces one side of the steel wire rope (3), the infrared receiver (52) is arranged at the upper portion of the detection hanger (5), the receiving end of the infrared receiver (52) faces the direction of the steel wire rope (3), and the infrared emitter (93) and the infrared receiver (52) have the same vertical direction height as the steel wire rope (3).

8. The coal mine aerial passenger conveyor brake ranging device according to claim 6, characterized in that: The rear concave is arranged on the punch rod (92), the opening of the concave is provided with an anti-falling rod, the anti-falling rod is hinged to one side of the punch rod (92), a torsional spring is arranged on the hinge shaft, and the anti-falling rod is swung into the concave and reset under the driving of the torsional spring when colliding with the scale winding belt (62).

9. A method for measuring the braking distance of the coal mine overhead passenger conveying device according to any one of claims 1-7, characterized in that, The method comprises the following steps, 1) the infrared emitter (93) on the moving hanging rod (9) starts the power supply, the moving hanging rod (9) is fixed to the steel wire rope (3), and the fixed position is greater than the distance moved by the aerial passenger conveying device from zero speed starting operation to working speed acceleration; 2) the aerial passenger conveying device starts to operate, and the running speed of the steel wire rope (3) reaches the working speed before reaching the brake distance detection assembly (6); 3) the moving hanging rod (9) moves close to the brake distance detection assembly (6) along with the steel wire rope (3), the infrared light emitted by the infrared emitter (93) is received by the infrared receiver (52), the infrared receiver (52) sends an infrared light signal to the PLC, and the punch rod (92) on the moving hanging rod (9) contacts the scale winding belt (62). 4) PLC processes the received infrared light signal, and transmits the brake signal to the power-on relay and the circuit-breaking relay. The power-on relay opens the electromagnetic valve on the hydraulic pipe connected to the hydraulic cylinder of the wheel brake mechanism (21), providing brake hydraulic power for the hydraulic cylinder of the wheel brake mechanism (21). The wheel brake mechanism (21) brakes the driving wheel (2). The circuit-breaking relay on the power supply circuit of the main motor (22) of the aerial passenger device receives the power-off signal, and the main motor (22) of the aerial passenger device is powered off; 5) The moving hanging rod (9) runs close to the brake distance detection assembly (6) with the steel wire rope (3), the plunger (92) passes between the two winding rollers (61), and pulls the scale winding tape (62) to move forward. The scale winding tape (62) is simultaneously pulled off the two winding rollers (61) and released; 6) The steel wire rope (3) stops under the brake of the wheel brake mechanism (21), and at this time the scale winding tape (62) is hung on the plunger (92), and the distance of the scale winding tape (62) pulled out is the brake distance of the aerial passenger device.

10. The method of measuring braking distance according to claim 9, characterized in that, In step 5), the winding roller (61) is pulled and rotated by the scale winding tape (62) released, driving the traction roller (7) to rotate, and the traction roller (7) winds the traction rope (81), pulling the sliding block (82) downward in the sliding groove (51), and the spring (83) is stretched under the pull of the sliding block (82). When the steel wire rope (3) stops, if the scale winding tape (62) is pulled out more due to inertia, the winding roller (61) does not wind the scale winding tape (62), and the spring (83) pulls the sliding block (82) upward in the sliding groove (51), pulls the traction rope (81) to release on the traction roller, and drives the winding roller (61) to wind the excess scale winding tape (62), until the scale winding tape (62) is pulled tight without falling redundancy.

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