Braking distance measuring device and braking distance measuring method for coal mine overhead man-riding device

Abstract

The invention relates to the technical field of coal mine overhead man-riding devices, in particular to a coal mine overhead man-riding device braking distance measuring device and a braking distance measuring method. According to the technical scheme, the device comprises a moving hanging rod, a braking distance detection assembly and a braking circuit; a counter weight is arranged at the bottom of the movable hanging rod, a punching rod is arranged in the middle of the movable hanging rod, the top of the movable hanging rod is located on the steel wire rope, an infrared emitter is fixedly connected to the upper end of the movable hanging rod and provided with a storage battery, and a braking circuit is connected to a wheel edge braking mechanism and a main motor of the driving wheel; the braking distance detection assembly comprises winding rollers which are arranged up and down, a scale tape is arranged between the two winding rollers in a winding mode, and an infrared receiver is installed on the upper portion of each winding roller and connected to a braking circuit. According to the device, when the infrared transmitter moves to the infrared receiver, the brake mechanism brakes, the movable hanging rod can move by a certain distance, the scale tape is pulled, the scale tape is released from the winding roller, and therefore the brake distance is recorded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine overhead passenger conveying device, in particular to a method for measuring the braking distance of a braking distance measuring device of a coal mine overhead passenger conveying device. BACKGROUND

[0002] The coal mine overhead passenger conveying device is also called a monkey car, and is mainly used for conveying personnel in mine inclined lanes and horizontal lanes, and for sending workers to work in the mine. The working principle thereof is similar to that of a ground tourist cableway. The coal mine overhead passenger conveying device generally mainly comprises a steel wire rope, an overhead frame of the steel wire rope, a supporting roller, a driving wheel, a steering wheel and a braking mechanism. The passengers advance on the steel wire rope by sitting on a hanging rod.

[0003] When in use, the workers sit on the cushion of the hanging rod, put their feet on the foot pedals, and then the motor is started to drive the driving wheel to rotate. The driving wheel drives the steel wire rope to move, and the steel wire rope drives the supporting frame to slide, thereby driving the workers to enter the deep mine. In this process, unexpected situations will inevitably occur. At this time, emergency braking of the coal mine overhead passenger conveying device is needed. The emergency braking system of the coal mine overhead passenger conveying device is an important component for ensuring the safety of the workers. Since the device is related to the upward and downward transportation of personnel, especially in the complex environment of the inclined lanes and horizontal lanes in the mine, the reliability of the emergency braking system is directly related to the safety of the miners. Therefore, before the coal mine overhead passenger conveying device is used, the emergency braking system needs to be tested multiple times to detect the braking distance of the steel wire rope. At present, there is no professional overhead passenger steel wire rope braking distance detection equipment. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a coal mine overhead passenger conveying device braking distance measuring device and a method for measuring the braking distance, which realizes the detection of the braking distance of the overhead passenger conveying device.

[0005] To achieve the above object, the present application realizes the following technical scheme: a coal mine overhead passenger conveying device braking distance measuring device, comprising a steel wire rope, a supporting roller and a suspended frame, the supporting roller is arranged on the suspended frame, the steel wire rope is arranged on the supporting roller, the steel wire rope is arranged around a driving wheel and a steering wheel, the driving wheel or the steering wheel is provided with a wheel edge braking mechanism, Further comprising a moving hanging rod, a braking distance detection assembly and a braking circuit; The bottom of the moving hanging rod is provided with a counterweight, the middle part is provided with a plunger, and the top is arranged on the steel wire rope. An infrared emitter is fixedly connected to the upper end of the moving hanging rod, and the infrared emitter is provided with a battery, The brake distance detection assembly comprises two winding rollers arranged in an up-down manner, the winding rollers are rotatably inserted into a detection hanger through rotating shafts, the upper part of the detection hanger is fixed on the suspension frame, an infrared receiver is fixedly installed on the top of the detection hanger, the infrared receiver is connected to a brake circuit, and the brake circuit is connected to the wheel edge brake mechanism and the main motor of the driving wheel. A scale winding tape is wound together between the two winding rollers, an elastic winding assembly is arranged in the winding roller, the elastic winding assembly drives the scale winding tape to be wound, and the scale winding tape is released when the scale winding tape is pulled by external force, the outer diameter distance between the two winding rollers is greater than the outer diameter of the punch rod, and the distance from the punch rod to the steel wire rope is equal to the distance from the middle position of the two winding rollers to the steel wire rope.

[0006] According to the coal mine overhead passenger device brake distance detection device, coaxially fixed connection has a gear on the rotating shaft, two gears are meshed, and one of the gears is coaxially fixedly connected with a traction roller.

[0007] According to the coal mine overhead passenger device brake distance detection device, the reset assembly comprises a spring fixedly connected to the top of the detection hanger, a sliding block fixedly connected to the lower end of the spring, a sliding groove formed in the side wall of the detection hanger, the sliding block is slidably arranged in the sliding groove, a traction rope fixedly connected to the lower end of the sliding block, and the lower end of the traction rope is fixedly connected with the traction roller.

[0008] According to the coal mine overhead passenger device brake distance detection device, the rotating shaft of the winding roller is perpendicular to the steel wire rope, the punch rod is horizontally arranged and perpendicular to the steel wire rope, the end of the punch rod does not interfere with the detection hanger when the punch rod passes between the two winding rollers, and the top of the detection hanger is fixed on the suspension frame.

[0009] According to the coal mine overhead passenger device brake distance detection device, the brake circuit comprises a PLC, an energizing relay, a disconnecting relay and an infrared receiver, the energizing relay is connected to the electromagnetic valve of the hydraulic pipe of the brake hydraulic cylinder of the wheel edge brake mechanism, the disconnecting relay is connected to the emergency stop switch of the power supply circuit of the main motor of the overhead passenger device, the infrared receiver is connected to the input end of the PLC, the energizing relay and the disconnecting relay are connected to the output end of the PLC, the PLC sends an energizing signal to the energizing relay to control the action of the electromagnetic valve after receiving the signal generated by the infrared receiver, the brake hydraulic cylinder of the wheel edge brake mechanism works to brake, and the disconnecting relay is sent a power-off signal at the same time, the emergency stop switch of the main motor is actuated to stop working.

[0010] According to the coal mine overhead passenger device brake distance measuring device, the main motor of the overhead passenger device is at the driving wheel end, the main shaft of the main motor is connected to the driving wheel, the wheel edge brake mechanism is a hydraulic brake mechanism, and the electromagnetic valve on the hydraulic cylinder connected pipeline of the hydraulic brake mechanism is connected to the power-on relay.

[0011] According to the coal mine overhead passenger device brake distance measuring device, the top of the movement hanging rod is fixed to the steel wire rope, the infrared emitter is arranged at the top of the movement hanging rod, the signal emission end faces one side of the steel wire rope, the infrared receiving sensor is arranged at the upper part of the detection hanging rack, the receiving end of the infrared receiver faces the direction of the steel wire rope, and the infrared emitter and the infrared receiver are arranged at the same height as the vertical direction of the steel wire rope.

[0012] According to the coal mine overhead passenger device brake distance measuring device, the rear concave is arranged on the punch rod, the structure is convenient for embedding the scale winding belt, the opening of the concave is provided with a anti-falling rod, the anti-falling rod is hinged to one side of the punch rod in the triangular concave, a torsional spring is arranged on the hinge shaft, and the anti-falling rod is swung inwards and restored under the driving of the torsional spring when being collided by the scale winding belt.

[0013] The method for measuring the braking distance of the coal mine overhead passenger device brake distance measuring device comprises the following steps: 1) The infrared emitter on the movement hanging rod is started, the movement hanging rod is fixed to the steel wire rope, and the fixed position is greater than the running acceleration distance of the overhead passenger device in length; 2) The overhead passenger device is started and runs, and the running speed of the steel wire rope reaches the working speed before reaching the braking distance detection component; 3) The movement hanging rod runs close to the braking distance detection component along with the steel wire rope, the infrared light emitted by the infrared emitter is received by the infrared receiver, the infrared receiver sends an infrared light signal to the PLC, and the punch rod on the movement hanging rod contacts the scale winding belt; 4) The PLC processes the received infrared light signal, and transmits a braking signal to the power-on relay and the power-off relay, the power-on relay opens the electromagnetic valve connected to the hydraulic cylinder of the wheel edge brake mechanism, the wheel edge brake mechanism improves the braking hydraulic power of the hydraulic cylinder, the wheel edge brake mechanism brakes the driving wheel, the power-off relay on the power supply circuit of the main motor of the overhead passenger device receives a power-off signal, and the main motor of the overhead passenger device is powered off; 5) The punch rod passes between the two winding rollers and pulls the scale winding belt to move forward when the movement hanging rod runs close to the braking distance detection component along with the steel wire rope, and the scale winding belt is simultaneously pulled and released from the two winding rollers; 6) The steel wire rope is stopped under the braking of the wheel edge brake mechanism, at this time, the scale winding belt is hung on the punch rod, and the distance of the pulled scale winding belt is the braking distance of the overhead passenger device.

[0014] According to the method for measuring the braking distance, in step 5), the winding roller is scaled to pull the rotating release, the traction roller is rotated, the traction rope is wound, the sliding block is pulled down in the sliding groove, the spring is stretched under the pulling of the sliding block, when the steel wire rope stops, if the scaled winding tape is pulled out due to inertia, the winding roller does not recover the scaled winding tape, the spring pulls the sliding block up in the sliding groove, the traction rope is pulled to release on the traction roller, the winding roller winds the excess scaled winding tape, and the scaled winding tape is pulled tight without falling redundancy.

[0015] The coal mine overhead passenger device braking distance measuring device has the following beneficial effects: In the present application, when the infrared emitter is displaced to the infrared receiver, the controller transmits a signal to the brake mechanism to brake, and under the action of inertia, it will also move a distance, the movement hanging rod pulls the scaled winding tape, and the scaled winding tape is released from the winding roller, so that the braking distance is recorded.

[0016] The present application detects the physical structure, which is reliable in structure and can detect the overhead passenger device in time after maintenance, thereby improving the operation and maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The present application provides a structure diagram of the coal mine overhead passenger device braking distance measuring device; Figure 2 The present application provides a position relationship diagram of the braking distance detection assembly and the movement hanging rod of the coal mine overhead passenger device braking distance measuring device in the cross-sectional direction; Figure 3 The present application provides a structure diagram of the reset assembly on the brake hanging rod of the coal mine overhead passenger device braking distance measuring device; Figure 4 The present application provides a structure diagram of the anti-falling rod on the movement hanging rod of the coal mine overhead passenger device braking distance measuring device; Figure 5 The present application provides a braking circuit connection relationship diagram of the coal mine overhead passenger device braking distance measuring device.

[0018] In the figure: 1, suspended frame, 11, support roller, 2, driving wheel, 21, wheel edge brake mechanism, 22, main motor, 3, steel wire rope, 4, steering wheel, 5, detection hanging frame, 51, sliding groove, 52, infrared receiver, 6, braking distance detection assembly, 61, winding roller, 62, scaled winding tape, 63, gear, 64, rotating shaft, 7, traction roller, 8, reset assembly, 81, traction rope, 82, sliding block, 83, spring, 9, movement hanging rod, 91, counterweight, 92, impact rod, 921, inner recess, 922, anti-falling rod, 93, infrared emitter. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0020] Please refer to Figure 1 The coal mine overhead passenger device brake distance measuring device of the present application is shown, which comprises an overhead steel wire rope 3, a support roller 11 and a suspended frame 1. The support roller 11 is arranged on the suspended frame 1, and the steel wire rope 3 is arranged on the support roller 11. The steel wire rope 3 is arranged around a driving wheel 2 and a steering wheel 4. The driving wheel 2 or the steering wheel 4 is provided with a wheel edge brake mechanism 21. The suspended frame 1 in the overhead passenger device is used to mount the support roller 11. The support roller 11 is used to guide and support the steel wire rope 3, so that the steel wire rope 3 can smoothly slide during operation, reduce the influence of friction, and effectively bear the downward load of the steel wire rope 3.

[0021] The brake distance measuring structure of the present application comprises a motion hanging rod 9, a brake distance detection assembly 6 and a brake circuit.

[0022] Specifically, the brake circuit is used to stop the main motor 22 of the overhead passenger device and brake the driving wheel 2 of the wheel edge brake mechanism 21 after receiving the brake signal.

[0023] The motion hanging rod 9 is an improvement of the passenger device. The original seat and footrest are removed, and a counterweight 91 is arranged. The main body of the motion hanging rod 9 is a column. A punch rod 92 is arranged on one side of the middle part. The upper part is fixed on the steel wire rope 3. An infrared emitter 93 is arranged at the top end position. The infrared emitter 93 is provided with a battery to provide power for the infrared emitter. An infrared receiver 52 is connected to the brake circuit. The brake circuit is electrically connected to the wheel edge brake mechanism 21 and the main motor of the driving wheel.

[0024] The brake distance detection assembly 6 comprises two upper and lower arranged winding rollers 61. The winding rollers 61 are rotatably inserted into a detection hanging frame 5 through a rotating shaft 64. The detection hanging frame 5 is fixed on the suspended frame 1. An infrared receiver 52 is fixedly arranged on the top of the detection hanging frame 5. The infrared receiver 52 is connected to the brake circuit. The brake circuit is electrically connected to the wheel edge brake mechanism 21 and the main motor of the driving wheel.

[0025] Further, the two winding rollers 61 are jointly wound with a scale winding tape 62, the inside of the winding roller 61 is provided with an elastic winding assembly, the elastic winding assembly drives the scale winding tape 62 to be wound into a roll, and releases the scale winding tape 62 when the scale winding tape 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. The scale winding tape 62 is provided with a distance scale, the starting position of the scale is wound on one winding roller, and the reading extends to the scale winding tape 62 on the other winding roller. The scale winding tape 62 is made of high-strength fiber material, which needs to be guaranteed not to break during the pulling of the punch rod, and has no elasticity. Specifically, a high-strength fiber material can be used.

[0026] In the spatial structure, as shown in Figure 2 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 contact and interfere with the detection hanger 5 when the punch rod 92 passes between the two winding rollers 61, and the top of the detection hanger 5 is fixed on the suspension frame 1. Specifically, the detection hanger 5 is fixed on the suspension frame 1 by a hoop holder, and the distance detection assembly 6 is close to the steel wire rope 3 but keeps a distance without contact and interference.

[0027] When the moving hanger 9 reaches the distance detection assembly 6, the wheel edge brake mechanism 21 brakes the driving wheel under the control of the brake circuit, the main motor stops, the punch rod 92 contacts the middle part of the scale winding tape 62, and the steel wire rope moves a distance under the action of inertia. The moving hanger 9 moves on the steel wire rope with the steel wire rope, the punch rod 92 pulls the scale winding tape 62, the scale winding tape 62 is released from the winding roller 61, and the length of the scale winding tape 62 is recorded. The brake distance is half of the length of the scale winding tape 62.

[0028] Further, the top of the moving hanger 9 is fixed on the steel wire rope 3, the infrared emitter 93 is arranged on the top of the moving hanger 9, the signal emission end faces the side of the steel wire rope 3, the detection hanger 5 is on the same side of the steel wire rope 3, the infrared receiving sensor is on the upper part of the detection hanger 5, the receiving end of the infrared receiver 52 faces the direction of the steel wire rope 3, the infrared emitter 93 and the infrared receiver 52 are at the same height as the vertical direction of the steel wire rope 3, and the punch rod passes between the two winding rollers in space.

[0029] Further, the rotating shaft 64 is coaxially fixedly connected with a gear 63, the two gears 63 are meshingly arranged, the detection hanger 5 is provided with a reset assembly 8 at the rear part, one of the gears 63 is coaxially fixedly connected with a traction roller 7 at the rear part behind the detection hanger, and the reset assembly 8 is connected with the traction roller 7. The winding roller 61 keeps a distance from the detection hanger 5 and the gear 63, and the distance length is for the purpose of avoiding collision of the punch rod 92.

[0030] The reset component 8 in the device comprises a spring 83 fixedly connected to the top of the detection hanger 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 hanger 5, the end of the sliding block 82 slidingly arranged in the sliding groove 51, a traction rope 81 fixedly connected to the lower end of the sliding block 82, and the traction roller 7 fixedly connected to the lower end of the traction rope 81. Two gears are used to transmit the rotation of the winding roller 61 when the scale winding tape 62 is released to the reset component, so as to continue to provide power for the reset component. That is, the traction rope of the reset component is wound by the traction roller 7, the sliding block is pulled downward in the sliding groove, the spring is deformed by the sliding block, and the power potential for continuing to reset.

[0031] When the scale winding tape 62 is released, the reset component can drive the winding roller 61 to wind the scale winding tape 62, so as to avoid the reading error caused by the falling of the scale winding tape 62. After the reading is measured, the scale winding tape 62 is released, and the reset component drives the winding roller 61 to wind the scale winding tape 62 again, so as to prepare for the next test.

[0032] The reset component and the elastic winding component in the winding roller both have the purpose of winding the scale winding tape 62, so as to improve the winding power after the impact of the plunger on the scale winding tape 62.

[0033] In the embodiment, as shown in Figure 4 A rear recess is arranged on the plunger 92, so as to form a structure convenient for the scale winding tape 62 to be embedded. An anti-falling rod is arranged at the opening of the recess. The anti-falling rod is hinged to one side of the plunger in the recess. A torsional spring is arranged on the hinge shaft. The anti-falling rod is swung inwardly to the recess under the impact of the scale winding tape 62 and is reset under the driving of the torsional spring. Specifically, the recess is semicircular or circular with a part missing. The opening is the diameter of the semicircle or the missing gap position of the circular shape.

[0034] When the plunger 92 contacts the scale winding tape 62, the anti-falling rod is pulled by the scale winding tape 62 and swings backward to the recess. The scale winding tape 62 is embedded in the recess of the plunger 92. Then, the anti-falling rod is reset to block the opening of the recess structure, so as to prevent the scale winding tape 62 from falling after being hung by the plunger 92.

[0035] Further, as shown in Figure 5As shown, the brake circuit comprises a PLC, an energizing relay, a de-energizing relay and an infrared receiver 52, the energizing relay is connected to the electromagnetic valve on the hydraulic pipe of the brake hydraulic cylinder of the wheel-side brake mechanism 21, the de-energizing relay is connected to the emergency stop switch on 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, the energizing relay and the de-energizing relay are connected to the output end of the PLC, after receiving the signal generated by the infrared receiver 52, the PLC sends an energizing signal to the energizing relay to control the electromagnetic valve to act, the brake hydraulic cylinder of the wheel-side brake mechanism 21 works to brake, and the PLC sends a de-energizing signal to the de-energizing relay, the emergency stop switch of the main motor acts to de-energize and stop.

[0036] In a further embodiment, 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, and the electromagnetic valve on the hydraulic pipe connected to the hydraulic cylinder of the hydraulic brake mechanism is connected to the energizing relay.

[0037] In the device, the lower end of the moving hanging rod 9 is fixedly connected with a supporting disc, two guide pins are fixedly connected to the supporting disc, a counterweight disc is sleeved on the guide pins, and nuts are threadedly sleeved on the guide pins. The number of the counterweight discs can be adjusted to change the weight, so that the conditions of no load and heavy load can be simulated to test the specific distance of parking after braking under different conditions.

[0038] The method for measuring the braking distance by the braking distance measuring device of the coal mine aerial passenger conveying device, comprises the following steps, 1) the infrared emitter 3 on the moving hanging rod 9 starts the power supply, the top of the moving hanging rod 9 is fixed on the steel wire rope 3, and the fixed position is located at a distance greater than the distance moved by the aerial passenger conveying device from the start of running at zero speed to the working speed; 2) the aerial passenger conveying device starts running, and before reaching the braking distance detection assembly 6, the running speed of the steel wire rope 3 reaches the working speed; 3) the moving hanging rod 9 runs close to the braking 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 plunger 92 on the moving hanging rod 9 contacts the scale tape 62; 4) the PLC processes the received infrared light signal, and sends a braking signal to the energizing relay and the de-energizing relay, the energizing relay opens the electromagnetic valve on the hydraulic pipe connected to the hydraulic cylinder of the wheel-side brake mechanism 21, the wheel-side brake mechanism 21 is provided with braking hydraulic power, the wheel-side brake mechanism 21 brakes the driving wheel 2, the relay on the power supply circuit of the main motor 22 of the aerial passenger conveying device receives a de-energizing signal, and the main motor 22 of the aerial passenger conveying device is de-energized; 5) the moving hanging rod 9 runs close to the brake distance detection assembly 6 along 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 pulled from the two winding rollers 61 at the same time to be released; the winding roller 61 is pulled to rotate by the scale winding tape 62, the traction roller 7 is rotated, the traction rope 81 is wound, the sliding block 82 is pulled downward in the sliding groove 51, the spring 83 is stretched under the pulling 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 back the scale winding tape 62, the spring 83 pulls the sliding block 82 upward in the sliding groove 51, the traction rope 81 is pulled to release on the traction roller, the winding roller 61 winds the excess scale winding tape 62 until the scale winding tape 62 is pulled tight without falling redundancy. 6) the steel wire rope 3 stops under the braking of the wheel edge brake mechanism 21, at this time the scale winding tape 62 is hung on the plunger 92, the distance of the scale winding tape 62 pulled out is the brake distance of the aerial passenger device.

[0039] After the measurement is completed, the scale winding tape 62 is released from the inner recess of the plunger 92, so that the plunger 92 is separated from the scale winding tape 62, at this time the spring 83 releases the elastic force, pulls the sliding block 82 to move upward, the sliding block 82 drives the traction roller 7 to rotate through the traction rope 81, so that the two gear wheels 63 rotate reversely, finally the two winding rollers 61 rotate reversely, the scale winding tape 62 is wound, so that the scale winding tape 62 is reset to the original state, facilitating secondary testing or next use.

[0040] Further, in order to simulate the operation of the aerial passenger device as much as possible and improve the accuracy of measurement, a plurality of simulated passenger counterweight hanging rods are further provided, the counterweight hanging rod removes the infrared emitter and the plunger structure compared with the moving hanging rod, a plurality of counterweight hanging rods are fixed at intervals in the upward direction and the downward direction of the steel wire rope 3, and the weight of the passenger operation is simulated as much as possible.

[0041] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only preferred examples of the present application and are not used to limit the present application, various changes and improvements of the present application can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A braking and ranging device for a coal mine overhead passenger transport device, comprising a wire rope (3), a support roller (11) and a suspension frame (1), wherein the support roller (11) is mounted on the suspension frame (1), the wire rope (3) is mounted on the support roller (11), and the wire rope (3) is arranged around the drive wheel (2) and the steering wheel (4), wherein the drive wheel (2) or the steering wheel (4) is provided with a wheel-side braking mechanism (21). Its characteristics are, It also includes a motion hook (9), a braking distance detection component (6), and a braking circuit; The bottom of the motion hanging rod (9) is equipped with a counterweight (91), the middle is equipped with a punch (92), and the top is on a steel wire rope (3). An infrared transmitter (93) is fixedly connected to the upper end of the motion hanging rod (9). The infrared transmitter (93) is equipped with a battery. The braking distance detection component (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 on 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. The two take-up rollers (61) are connected to a scaled tape (62) for winding together. The take-up rollers (61) are equipped with an elastic winding component inside. The elastic winding component drives the scaled tape (62) to wind and releases the scaled tape (62) when the scaled tape (62) is pulled by an external force. The distance between the outer diameters of 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 middle position of the two take-up rollers (61) to the wire rope (3).

2. The braking and ranging device for aerial passenger transport in coal mines according to claim 1, characterized in that, A gear (63) is coaxially fixedly connected to the rotating shaft (64), and two gears (63) are meshed. One of the gears (63) is coaxially fixedly connected to a traction roller (7). A reset component (8) is provided at the rear of the detection bracket (5), and the reset component (8) is connected to the traction roller (7).

3. The braking and ranging device for aerial passenger transport in coal mines according to claim 2, characterized in that: The reset assembly (8) includes a spring (83) fixedly connected to the top of the detection bracket (5), a slider (82) fixedly connected to the lower end of the spring (83), a groove (51) is provided on the side wall of the detection bracket (5), 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).

4. The braking and ranging device for aerial passenger transport in coal mines according to claim 1, characterized in that: The shaft (64) of the take-up roller (61) is set perpendicular to the wire rope (3), and the punch (92) is set horizontally perpendicular to the wire rope (3). When the punch (92) passes between the two take-up rollers (61), the end of the punch (92) does not contact or interfere with the detection bracket (5). The top of the detection bracket (5) is fixed on the suspension frame (1).

5. The braking and ranging device for aerial passenger transport in coal mines according to claim 1, characterized in that: 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 overhead passenger vehicle. The infrared receiver (52) is connected to the input terminal of the PLC. The energized relay and the circuit breaker relay are connected to the output terminal of the PLC.

6. The braking and ranging device for aerial passenger transport in coal mines according to claim 5, characterized in that: The main motor (22) of the overhead passenger vehicle is located at the end of the drive wheel (2). 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. The solenoid valve on the pipeline connected to the hydraulic cylinder of the hydraulic braking mechanism is connected to the energized relay. After receiving the signal generated by the infrared receiver (52), the PLC controls the solenoid valve to act. The braking hydraulic cylinder of the wheel-side braking mechanism (21) then works to brake. At the same time, it sends a power-off signal to the power-off relay, and the emergency stop switch of the main motor is activated to cut off the power and stop the machine.

7. The braking and ranging device for aerial passenger transport in coal mines according to claim 6, characterized in that: 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), with the transmitting end facing one side of the wire rope (3). The infrared receiving sensor is located on the upper part of the detection bracket (5), and the receiving end of the infrared receiver (52) faces the wire rope (3). The infrared transmitter (93) and the infrared receiver (52) are at the same height as the vertical direction of the wire rope (3).

8. The braking and ranging device for aerial passenger transport in coal mines according to claim 6, characterized in that: The punch (92) has a rearward concave shape, forming a structure that facilitates the insertion of the scale roll (62). The opening of the concave shape is provided with an anti-detachment rod, which is hinged to the punch (92) on one side of the concave shape. A torsion spring is provided on the hinge shaft. The anti-detachment rod is swung inward by the collision of the scale roll (62) and reset under the action of the torsion spring.

9. A method for measuring the braking distance of an overhead passenger transport device in a coal mine according to any one of claims 1-7, characterized in that, Includes the following steps, 1) The infrared transmitter (93) on the moving rod (9) starts the power supply and fixes the moving rod (9) on the 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 vehicle travels from zero speed to working speed. 2) When the overhead 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); 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). 4) The PLC processes the received infrared light signal and transmits the braking signal to the power-on relay and the power-off relay. The power-on relay opens the solenoid valve on the hydraulic pipe connected to the hydraulic cylinder of the wheel-side braking mechanism (21) to increase the braking hydraulic power of the hydraulic cylinder of the wheel-side braking mechanism (21). The wheel-side braking mechanism (21) brakes the drive wheel (2). The circuit breaker 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. 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 belt (62) forward. The scale winding belt (62) is simultaneously pulled and released from the two take-up rollers (61). 6) The wire rope (3) stops under the braking of the wheel-side braking mechanism (21). At this time, the scale reel (62) is hung on the punch (92). The distance that the scale reel (62) is pulled out is the braking distance of the aerial passenger vehicle.

10. The method for measuring braking distance according to claim 9, characterized in that, In step 5), the take-up roller (61) is pulled and rotated as the graduated tape (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 graduated tape (62) is pulled out due to inertia, and the take-up roller (61) does not retract the graduated tape (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 graduated tape (62) until the graduated tape (62) is tightened without any sagging.

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