Optical cable automatic take-up and pay-off device for coal mine tunneling working face

Abstract

The present application relates to a kind of coal mine tunneling working face optical cable automatic take-up device, belong to coal mine equipment technical field.The first optical cable winding drum, second optical cable winding drum, optical cable length measurement mechanism, optical cable tension measurement mechanism, optical cable breakpoint detection mechanism, power mechanism, control mechanism, audible and visual alarm and explosion-proof power supply are included in support frame.The present application provides a kind of can realize the automatic take-up operation of optical cable, and can measure the length of optical cable, optical cable tension and optical cable breakpoint in real time Device, can avoid optical cable fracture to the greatest extent, improve the degree of automation and intelligentization of device, can respond to the high safety and high efficiency demand of optical cable laying under the complex environment of coal mine tunneling working face.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine equipment, and particularly relates to a coal mine tunneling working face optical cable automatic winding and unwinding device. BACKGROUND

[0002] With the continuous expansion of the depth and scale of coal mining, the demand for communication and monitoring inside the mine is growing rapidly. As a key communication transmission medium, optical cable is increasingly widely used in coal mining operations. However, the traditional optical cable laying method has many problems in the complex and variable environment of the coal mine tunneling working face, which can easily lead to optical cable breakage, communication interruption, and even safety accidents, posing a great safety hazard.

[0003] In view of the complex environment of the coal mine tunneling working face, the coal after mining needs to be transported out by belt and other equipment. In most coal mines, the self-moving tail and the belt conveyor work together, which improves the coal transportation efficiency. However, when the self-moving tail moves to the tunneling working face, sudden tension may occur, which can easily cause the optical cable connecting the self-moving tail centralized control center and the outside world to be pulled off. At the same time, the existing cable laying device usually adopts a design of winding optical cable on a drum. When the self-moving tail moves, the optical cable is forced to rotate along the drum and is laid out. The optical cable lock buckle fixed on the side slope roadway can increase the tension of the optical cable, further increasing the risk of the optical cable being pulled off. In such an environment, the optical cable is easily damaged when the self-moving tail moves, which can cause the main communication equipment of the working face to malfunction. If the work is stopped for maintenance, the production efficiency will be greatly reduced, and the normal production of the coal mine will be seriously affected.

[0004] In addition, although the current optical cable laying technology to some extent relies on the combination of mechanical equipment and manual operation, there are still obvious deficiencies. Manual cable laying operation not only easily causes the optical cable to be broken due to human error, causing communication interruption, but also can cause serious safety accidents. The automation degree of mechanical equipment is limited, and there is a lack of automatic and intelligent monitoring means for the optical cable. Therefore, the current optical cable laying method cannot meet the high requirements of modern coal mines for safety and automation, affecting the stable operation of the entire system.

[0005] In summary, the existing technology cannot fully meet the high safety and high efficiency requirements of the optical cable laying in the complex environment of the coal mine tunneling working face, and cannot effectively guarantee the safety and continuity of the operation. SUMMARY

[0006] To solve the above technical problems, the present application provides a coal mine tunneling working face optical cable automatic winding and unwinding device. The technical scheme of the present application is as follows:

[0007] The application discloses an automatic cable winding and unwinding device for a coal mine tunneling working face, which comprises a support frame, wherein the support frame is a square frame with an opening in front and back, a first cable winding drum is rotatably connected to the left side of the inside of the support frame, a second cable winding drum is rotatably connected to the right side of the inside of the support frame, the first cable winding drum and the second cable winding drum are connected through an optical fiber slip ring mechanism, a cable unwinding length measuring mechanism is installed in front of the first cable winding drum, a cable tension measuring mechanism is installed behind the first cable winding drum, a power mechanism is installed on the left side of the cable unwinding length measuring mechanism, a cable breakpoint detection mechanism is installed on the right side of the cable unwinding length measuring mechanism, a control mechanism, an audible and visual alarm and an explosion-proof power supply are installed on the support frame, and the cable unwinding length measuring mechanism, the cable tension measuring mechanism, the cable breakpoint detection mechanism, the power mechanism and the audible and visual alarm are electrically connected with the control mechanism.

[0008] The power mechanism is used for providing power for the first cable winding drum to wind and unwind the cable; the cable unwinding length measuring mechanism is used for measuring the length of the cable unwound by the first cable winding drum in real time; the cable tension measuring mechanism is used for measuring the tension of the cable unwound by the first cable winding drum in real time; the cable breakpoint detection mechanism is used for detecting whether the cable has a breakpoint; the control mechanism is used for determining the cable unwinding length according to the data fed back by the cable unwinding length measuring mechanism, judging the cable tension according to the data fed back by the cable tension measuring mechanism, controlling the power mechanism to act according to the cable tension, and judging whether the cable has a breakpoint according to the data fed back by the cable breakpoint detection mechanism; the optical fiber slip ring mechanism is used for maintaining the normal transmission of signals between the first cable winding drum and the second cable winding drum; and the explosion-proof power supply is used for supplying power to the whole device.

[0009] Optionally, the cable unwinding length measuring mechanism comprises a length measuring support, wherein the length measuring support is a square frame with an opening in front and back, the length measuring support is fixedly connected with the support frame and located in front of the first cable winding drum, an L-shaped support plate is fixedly connected with the position where the right side surface and the top surface of the length measuring support intersect, an encoder and two center shafts are fixedly connected with the vertical part of the L-shaped support plate, the encoder is electrically connected with the control mechanism through an encoder cable, the two center shafts are rotatably connected with a first guide wheel and a third guide wheel at the ends away from the L-shaped support plate, respectively, a rotating shaft is rotatably connected with the end of the encoder away from the L-shaped support plate, a second guide wheel is fixedly connected with the rotating shaft, the second guide wheel is located between the first guide wheel and the third guide wheel, and the ends of the two center shafts and the rotating shaft away from the L-shaped support plate are fixedly connected through the three corners of a triangular support, respectively, and the cable unwound by the first cable winding drum enters the cable tension measuring mechanism in sequence through the first guide wheel, the second guide wheel and the third guide wheel.

[0010] Optionally, the optical cable tension measuring mechanism comprises a tension measuring support, a top plate and a tension sensor, the tension measuring support is a square frame with front and rear openings, the tension measuring support is fixedly connected with the support frame and located behind the first optical cable winding drum, the top plate is fixedly connected with the inner top surface of the tension measuring support, two groups of roller assemblies are symmetrically installed at the rear middle part of the top plate, the tension sensor is installed at the middle rear side of the top plate, the rollers of the tension sensor are located between the two groups of roller assemblies, the main body of the tension sensor extends out of the top surface of the top plate and the tension measuring support and is fixedly connected with the tension measuring support and the top plate, the main body of the tension sensor is electrically connected with the control mechanism through a sensor cable, and the optical cable discharged from the optical cable discharge length measuring mechanism is discharged in sequence through a group of roller assemblies, the rollers and another group of roller assemblies.

[0011] Optionally, the optical fiber slip ring mechanism comprises an L-shaped support seat, a first optical fiber slip ring, a second optical fiber slip ring, an optical fiber drum and a support seat, the first optical fiber slip ring and the second optical fiber slip ring are both three-channel optical fiber slip rings, two channels are used for transmitting signals, and the third channel is used for detecting the breakpoint of the optical cable, the rotor end flange plate of the first optical fiber slip ring is fixedly connected with the first right baffle plate of the first optical cable winding drum, the stator end flange plate of the first optical fiber slip ring is connected with the left flange of the optical fiber drum, the optical fiber drum is fixed on the support seat, the right side of the optical fiber drum is bolted with the stator end flange plate of the second optical fiber slip ring, the rotor end flange plate of the second optical fiber slip ring is bolted with the second left baffle plate of the second optical cable winding drum, the support seat is fixed on the horizontal part of the L-shaped support seat, and the horizontal part of the L-shaped support seat is fixedly connected with the support frame and located at the front side of the middle part of the support frame.

[0012] The first optical cable winding drum and the second optical cable winding drum are both provided with grooves, and the grooves are fixedly connected with optical fiber port bidirectional connection devices, and three optical fiber couplers are installed on the optical fiber port bidirectional connection devices, the optical cables wound on the first optical cable winding drum and the second optical cable winding drum comprise three-core optical fibers, the three-core optical fibers at one end of the optical cables wound on the first optical cable winding drum are respectively inserted into the three optical fiber channels of the first optical fiber slip ring through the three optical fiber couplers, and then pass through the optical fiber guide assemblies, the rotor end and the stator end of the first optical fiber slip ring, the stator end and the rotor end of the second optical fiber slip ring, the three optical fiber channels of the second optical fiber slip ring, the optical fiber guide assemblies and the three optical fiber couplers of the optical fiber port bidirectional connection devices on the second optical cable winding drum in sequence, and are coupled together through the optical cable external interface and wound on the second optical cable winding drum.

[0013] The optical cable breakpoint detection mechanism comprises an OTDR, and the vertical part of the L-shaped support seat is obliquely arranged, the OTDR is fixed on the vertical part of the L-shaped support seat, one core optical fiber disconnected between the stator ends of the first optical fiber slip ring and the second optical fiber slip ring is connected with the optical fiber input port of the OTDR, and the OTDR is electrically connected with the explosion-proof power supply.

[0014] Optionally, the power mechanism comprises an electric motor fixed to the support frame and located on the left side of the optical cable pay-off length measuring mechanism, the electric motor is electrically connected with the explosion-proof power supply and the control mechanism through an electric motor cable, the output shaft of the electric motor is fixedly connected with a driving gear, the left end of the transmission shaft of the first optical cable winding drum is fixedly connected with a driven gear, and the driving gear and the driven gear are connected through a belt drive.

[0015] Optionally, the optical cable pay-off length measuring mechanism further comprises two groups of transverse guide rollers and a round hole directional rod, the two groups of transverse guide rollers are arranged in parallel above each other, the two ends of the two groups of transverse guide rollers are rotatably connected with the left and right sides of the length measuring support respectively, the round hole directional rod is located above the two groups of transverse guide rollers, the two ends of the round hole directional rod are fixedly connected with the left and right sides of the length measuring support respectively, a cable guide hole is formed in the middle of the round hole directional rod, and the optical cable payed out by the first optical cable winding drum enters the optical cable tension measuring mechanism in sequence through the gap between the two groups of transverse guide rollers, the cable guide hole, the first guide wheel, the second guide wheel and the third guide wheel.

[0016] Optionally, the two central shafts are fixedly connected with a first baffle and a third baffle at positions on the left and right sides of the first guide wheel and the third guide wheel respectively, and the shaft is provided with a second baffle at positions on the left and right sides of the second guide wheel.

[0017] Optionally, the optical cable pay-off length measuring mechanism further comprises two groups of longitudinal roller assemblies and a circular guide positioning hole, the two groups of longitudinal roller assemblies are connected with the front side of the top plate, and the circular guide positioning hole is fixedly connected with the inner top surface of the length measuring support; the optical cable payed out by the first optical cable winding drum is pulled out from the circular guide positioning hole in sequence through the third guide wheel, one group of longitudinal roller assemblies, one group of roller assemblies, a roller, another group of roller assemblies and another group of longitudinal roller assemblies.

[0018] Optionally, the coal mine tunneling face optical cable automatic pay-off device further comprises an optical cable pay-off guide frame fixedly connected to the right front side of the support frame for guiding the optical cable payed out by the second optical cable winding drum.

[0019] All the optional technical solutions can be combined arbitrarily, and the application does not describe the structures after combination in detail.

[0020] By the above-mentioned solutions, the application has the following advantages:

[0021] Through setting the support frame, the first optical cable winding roller, the second optical cable winding roller, the optical cable pay-off length measuring mechanism, the optical cable tension measuring mechanism, the optical cable breakpoint detection mechanism, the power mechanism, the control mechanism, the audible and visual alarm and the explosion-proof power supply and the like structures, the device can realize the automatic winding and unwinding operation of the optical cable, can measure the pay-off length, the tension and the breakpoint of the optical cable in real time, can avoid the optical cable breakage to the maximum extent, improves the automation and the intelligent degree of the device, can meet the high safety and high efficiency requirements of the optical cable laying in the complex environment of the coal mine tunneling working face, and can effectively guarantee the safety and continuity of the operation.

[0022] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the description, as follows. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the present application in one perspective.

[0024] Figure 2 is a structural schematic view of the present application in another perspective.

[0025] Figure 3 is a partial schematic view of the composition structure of the optical cable pay-off length measuring mechanism in the present application.

[0026] Figure 4 is a partial schematic view of the composition structure of the optical cable tension measuring mechanism in the present application.

[0027] Figure 5 is a schematic view of the composition structure of the first optical fiber slip ring and the second optical fiber slip ring in the present application.

[0028] Figure 6 is a schematic view of the connection relationship between the first optical fiber slip ring and the second optical fiber slip ring and the L-shaped support seat in the present application.

[0029] Figure 7 is a schematic view of the connection relationship between the first optical fiber slip ring and the first optical cable winding roller in the present application.

[0030] Figure 8 is a schematic view of the connection relationship between the optical fiber port bidirectional connection device and the first optical fiber slip ring in the present application.

[0031] Figure 9 is a structural schematic view of the optical fiber port bidirectional connection device in one perspective in the present application.

[0032] Figure 10 is a structural schematic view of the optical fiber port bidirectional connection device in another perspective in the present application.

[0033] Figure 11 is a structural schematic diagram of the bidirectional connection device of the optical fiber port in another perspective of the application.

[0034] Figure 12 is a schematic diagram of the connection relationship between the bidirectional connection device of the optical fiber port and the second optical cable winding drum in the application.

[0035] Figure 13 is a schematic diagram of the connection relationship between the OTDR and the L-shaped support seat in the application.

[0036] Figure 14 is a schematic diagram of the connection relationship between the power mechanism and the first optical cable winding drum in the application.

[0037] Figure 15 is a data processing flowchart of the control mechanism in the application.

[0038] The reference signs are:

[0039] 1 - support frame, 2 - control mechanism, 3 - audible and visual alarm, 4 - explosion-proof power supply, 5 - L-shaped support seat, 501 - horizontal part, 502 - vertical part, 503 - bolt hole, 504 - support seat bolt hole, 505 - support seat, 506 - optical fiber drum, 6 - OTDR, 601 - fixed assembly, 602 - power supply line, 603 - communication line, 7 - length measurement support, 8 - optical cable unwinding guide frame, 9 - power mechanism, 901 - motor, 902 - motor cable, 903 - motor bolt, 904 - driving gear, 905 - belt, 906 - driving gear, 10 - first optical cable winding drum, 1001 - first right baffle, 1002 - rotor end bolt assembly, 1003 - transmission shaft, 11 - tension measurement support, 12 - optical cable tension measurement mechanism, 1201 - tension sensor main body, 1202 - sensor cable, 1203 - top plate, 1204 - top plate bolt, 1205 - wheel slide shaft, 1206 - roller baffle, 1207 - roller, 1208 - longitudinal roller assembly, 1209 - roller assembly, 1210 - locking nut, 1211 - main shaft, 13 - optical cable unwinding length measurement mechanism, 1301 - encoder cable, 1302 - support plate bolt, 1303 - L-shaped support plate, 1304 - encoder, 1305 - encoder bolt, 1306 - third guide wheel, 1307 - central shaft, 1308 - third baffle, 1309 - first guide wheel, 1310 - first baffle, 1311 - triangular support, 1312 - triangular support nut, 1313 - second baffle, 1314 - second guide wheel, 1315 - transverse guide roller shaft, 1316 - round hole orientation rod, 1317 - circular guide positioning hole, 14 - first optical fiber slip ring, 1401 - optical fiber channel, 1402 - optical fiber guide assembly, 1403 - fixed flange support, 1404 - rotor end flange bolt hole, 1405 - rotor end flange, 1406 - rotor end rotary support ring, 1407 - stator end flange, 1408 - stator end flange bolt hole, 1409 - stator end fixed flange support, 1410 - stator end connecting piece, 15 - second optical fiber slip ring, 1501 - stator end bolt hole, 1502 - rotor end bolt hole, 16 - wound optical cable, 17 - unwound optical cable, 18 - second optical cable winding drum, 1801 - second left baffle, 1802 - second transmission shaft, 2001 - optical fiber port bidirectional connecting device, 2002 - rivet, 2003 - optical fiber coupler, 2004 - optical cable external interface. DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application.

[0041] As Figure 1 and Figure 2As shown, the coal mine tunneling working face optical cable automatic winding and unwinding device provided by the present application comprises a support frame 1, the support frame 1 is a square frame with front and rear openings, a first optical cable winding drum 10 is rotatably connected to the left side inside the support frame 1, a second optical cable winding drum 18 is rotatably connected to the right side inside the support frame 1, the first optical cable winding drum 10 and the second optical cable winding drum 18 are connected through an optical fiber slip ring mechanism, an optical cable unwinding length measuring mechanism 13 is installed in front of the first optical cable winding drum 10, an optical cable tension measuring mechanism 12 is installed behind the first optical cable winding drum 10, a power mechanism 9 is installed on the left side of the optical cable unwinding length measuring mechanism 13, an optical cable breakpoint detection mechanism is installed on the right side of the optical cable unwinding length measuring mechanism 13, a control mechanism 2, an audible and visual alarm 3 and an explosion-proof power supply 4 are installed on the support frame 1, and the optical cable unwinding length measuring mechanism 13, the optical cable tension measuring mechanism 12, the optical cable breakpoint detection mechanism, the power mechanism 9 and the audible and visual alarm 3 are electrically connected with the control mechanism 2.

[0042] The power mechanism 9 is used for providing power for the first optical cable winding drum 10 to wind and unwind the optical cable; the optical cable unwinding length measuring mechanism 13 is used for measuring the length of the optical cable 17 unwound by the first optical cable winding drum 10 in real time; the optical cable tension measuring mechanism 12 is used for measuring the tension of the optical cable 17 unwound by the first optical cable winding drum 10 in real time; the optical cable breakpoint detection mechanism is used for detecting whether the optical cable has a breakpoint; the control mechanism 2 is used for determining the optical cable unwinding length according to the data fed back by the optical cable unwinding length measuring mechanism 13, judging the optical cable tension according to the data fed back by the optical cable tension measuring mechanism 12, controlling the power mechanism 9 to act according to the optical cable tension, and judging whether the optical cable has a breakpoint according to the data fed back by the optical cable breakpoint detection mechanism; the optical fiber slip ring mechanism is used for maintaining the normal transmission of signals between the first optical cable winding drum 10 and the second optical cable winding drum 18; and the explosion-proof power supply 4 is used for supplying power to the whole device.

[0043] The first optical cable winding drum 10 comprises a first transmission shaft 1003, a first left baffle, a first right baffle 1001 and a first cable winding roller, the first left baffle and the first right baffle 1001 are fixedly connected to the left and right sides of the first cable winding roller respectively, the first cable winding roller is of a hollow structure, and the first transmission shaft 1003 is fixedly connected to the left side of the first cable winding roller in a concentric manner. The second optical cable winding drum 18 comprises a second transmission shaft 1802, a second left baffle 1801, a second right baffle and a second cable winding roller, the second left baffle 1801 and the second right baffle are fixedly connected to the left and right sides of the second cable winding roller respectively, and the second transmission shaft 1802 is fixedly connected to the right side of the second cable winding roller in a concentric manner.

[0044] The coal mine tunneling working face optical cable automatic winding and unwinding device provided by the embodiment of the present application is used, the optical cable 17 unwound by the first optical cable winding drum 10 is first measured for unwound length by the optical cable unwound length measuring mechanism 13, and the length measurement data is sent to the control mechanism 2. Then, the unwound optical cable 17 enters the optical cable tension measuring mechanism 12 from the optical cable unwound length measuring mechanism 13, the optical cable tension measuring mechanism 12 measures the tension of the unwound optical cable 17, and the tension measurement data is sent to the control mechanism 2. During the optical cable unwinding process, the optical cable breakpoint detection mechanism detects whether the optical cable has a breakpoint in real time, and sends the breakpoint detection data to the control mechanism 2. The control mechanism 2 performs threshold judgment on the length measurement data fed back by the optical cable unwound length measuring mechanism 13 to determine whether the optical cable needs to be replaced by the staff. The control mechanism 2 judges the tension measurement data fed back by the optical cable tension measuring mechanism 12, and controls the power mechanism 9 to adjust according to the tension measurement data fed back by the optical cable tension measuring mechanism 12, so as to ensure that the optical cable tension is within the set range, and to drive the first optical cable winding drum 10 to normally wind and unwind the optical cable, and to ensure the tension balance and safe operation of the optical cable. At the same time, the control mechanism 2 makes a judgment according to the corresponding preset threshold of each mechanism, and sends a warning signal to the audible and visual alarm 3 when necessary to remind the staff. The explosion-proof power supply 4 is electrically connected with the optical cable unwound length measuring mechanism 13, the optical cable tension measuring mechanism 12, the optical cable breakpoint detection mechanism and the power mechanism 9, and is used to provide power support for each mechanism to ensure smooth operation of the device.

[0045] The optical cable 17 unwound by the first optical cable winding drum 10 is mainly used for laying on the fixed hook of the roadway side.

[0046] In one specific embodiment, as Figure 3As shown, the optical cable pay-out length measuring mechanism 13 comprises a length measuring support 7, which is a square frame with front and back openings, and is fixedly connected to the support frame 1 by support bolts and located in front of the first optical cable winding drum 10. An L-shaped support plate 1303 is fixedly connected to the position where the right side surface of the length measuring support 7 intersects with the top surface. The horizontal part of the L-shaped support plate 1303 is fixed to the inner top surface of the length measuring support 7 by support plate bolts 1302. The vertical part of the L-shaped support plate 1303 is fixedly connected to an encoder 1304 and two central shafts 1307. The encoder 1304 is fixed to the vertical part of the L-shaped support plate 1303 by encoder bolts 1305. The encoder 1304 is electrically connected to the control mechanism 2 by an encoder cable 1301. The ends of the two central shafts 1307 away from the L-shaped support plate 1303 are rotatably connected to a first guide wheel 1309 and a third guide wheel 1306, respectively. That is, the first guide wheel 1309 and the third guide wheel 1306 can rotate around their respective central shafts 1307. The end of the encoder 1304 away from the L-shaped support plate 1303 is rotatably connected to a rotating shaft, which is fixedly connected to a second guide wheel 1314. The second guide wheel 1314 is located between the first guide wheel 1309 and the third guide wheel 1306. The ends of the two central shafts 1307 and the rotating shaft away from the L-shaped support plate 1303 pass through the three corners of a triangular bracket 1311 and are fixed by triangular bracket nuts 1312. The optical cable 17 payed out by the first optical cable winding drum 10 passes through the first guide wheel 1309, the second guide wheel 1314, and the third guide wheel 1306 in sequence and then enters the optical cable tension measuring mechanism 12.

[0047] The encoder 1304 and the second guide wheel 1314 are in precise axial and circumferential cooperation. The second guide wheel 1314 is driven to rotate synchronously by the friction between the optical cable and the second guide wheel 1314. The encoder 1304 records the number of rotations of the second guide wheel 1314, thereby realizing accurate measurement of the pay-out length of the optical cable. By arranging the triangular bracket 1311, the structural stability of the device during operation can be ensured, and smooth transmission of the optical cable in the same vertical plane can be guaranteed.

[0048] Further, as Figure 3As shown, the optical cable pay-off length measuring mechanism 13 further comprises two sets of transverse guide rollers 1315 and a round hole directional rod 1316. The two sets of transverse guide rollers 1315 are arranged in parallel and are rotatably connected to the left and right sides of the length measuring support 7. The round hole directional rod 1316 is located above the two sets of transverse guide rollers 1315 and is fixedly connected to the left and right sides of the length measuring support 7. A cable guiding hole is formed in the middle of the round hole directional rod 1316. The optical cable 17 payed off by the first optical cable winding drum 10 passes through the gap between the two sets of transverse guide rollers 1315, the cable guiding hole, the first guide wheel 1309, the second guide wheel 1314 and the third guide wheel 1306 in sequence and then enters the optical cable tension measuring mechanism 12.

[0049] Specifically, after the optical cable is payed off from the first optical cable winding drum 10, the payed-off optical cable 17 first passes through the gap between the two sets of transverse guide rollers 1315 to avoid a suspended state. Then, the payed-off optical cable 17 passes through the cable guiding hole and smoothly enters the optical cable pay-off length measuring mechanism 13 and advances along the direction of the first guide wheel 1309. The second guide wheel 1314 is made of a material with high friction coefficient. The friction between the payed-off optical cable 17 and the second guide wheel 1314 drives the rotation of the second guide wheel 1314 and simultaneously drives the encoder 1304 coaxial with the second guide wheel 1314 to record the length of the payed-off optical cable 17 in real time. After the length measurement is completed, the payed-off optical cable 17 passes through the third guide wheel 1306 and enters the optical cable tension measuring mechanism 12.

[0050] Further, as shown in the drawings, Figure 3 The two central shafts 1307 are fixedly connected with the first baffle 1310 and the third baffle 1308 at positions on the left and right sides of the first guide wheel 1309 and the third guide wheel 1306, respectively. The second baffle 1313 is installed at positions on the left and right sides of the second guide wheel 1314. The second baffle 1313 can prevent the optical cable from falling off the second guide wheel 1314 and ensure that the optical cable always maintains good contact with the second guide wheel 1314. The first baffle 1310 can prevent the optical cable from deviating from the track during transmission and can guide the optical cable to enter the second guide wheel 1314 along a fixed path, thereby improving the measurement accuracy. The third baffle 1308 can prevent the optical cable from derailing and ensure that the optical cable smoothly enters the optical cable tension measuring mechanism 12. These designs effectively improve the measurement accuracy and stability of the device.

[0051] In one specific embodiment, as shown in the drawings, Figure 4As shown, the optical cable tension measuring mechanism 12 includes a tension measuring support 11, a top plate 1203 and a tension sensor. The tension measuring support 11 is a square frame with front and rear openings, and is fixedly connected to the support frame 1 by support bolts and located behind the first optical cable winding drum 10. The top plate 1203 is fixedly connected to the inner top surface of the tension measuring support 11 by top plate bolts 1204. Two groups of roller assemblies 1209 are symmetrically installed at the rear middle part of the top plate 1203. The tension sensor is installed at the rear middle part of the top plate 1203, and the rollers 1207 of the tension sensor are located between the two groups of roller assemblies 1209. The main body 1201 of the tension sensor extends from the top surface of the top plate 1203 and the tension measuring support 11 and is fixedly connected to the tension measuring support 11 and the top plate 1203 by two locking nuts 1210. The main body 1201 of the tension sensor is electrically connected to the control mechanism 2 by a sensor cable 1202. The optical cable 17 released from the optical cable release length measuring mechanism 13 is released after entering the optical cable tension measuring mechanism 12, and then passes through one group of roller assemblies 1209, the rollers 1207 and the other group of roller assemblies 1209.

[0052] Each group of roller assemblies 1209 includes a fixed shaft, an upper support plate, a lower support plate, two shafts and two rollers. The top end of the fixed shaft is fixedly connected to the bottom surface of the top plate 1203, and the bottom end of the fixed shaft is fixedly connected to the middle part of the top surface of the upper support plate. The two ends of the two shafts are rotatably connected to the upper support plate and the lower support plate, respectively. The two rollers are fixedly installed on the two shafts, respectively.

[0053] The tension sensor includes a tension sensor main body 1201, a wheel sliding shaft 1205, rollers 1207 and a main shaft 1211. The rollers 1207 are rotatably connected to the bottom end of the wheel sliding shaft 1205, and the top end of the wheel sliding shaft 1205 is fixedly connected to the bottom end of the main shaft 1211. The top end of the main shaft 1211 passes through the top plate 1203 and the tension measuring support 11, and is fixed to the top plate 1203 and the tension measuring support 11 by two locking nuts 1210, which is used to lock the pulley shaft 1205 and the sensor main body 1201 up and down to ensure that they will not loosen during use due to vibration or impact. In the turning area of the rollers 1207, i.e. the position where the direction of the optical cable changes, a roller baffle 1206 is installed. The positions of the wheel sliding shaft 1205 on both sides of the rollers 1207 are fixedly connected to the roller baffle 1206. The roller baffle 1206 can ensure that the optical cable always stays in the groove of the rollers 1207 during operation, avoiding falling and ensuring stable operation of the device. The tension sensor main body 1201 is internally provided with a sensing element. When the rollers 1207 are subjected to tension and deformed, the sensing element will sense the force and convert it into an electrical signal. The electrical signal is transmitted to the control mechanism 2 through the sensor cable 1202, and the control mechanism 2 performs real-time tension analysis and provides subsequent operation suggestions.

[0054] The design of the roller assembly 1209 can ensure that the optical cable has a large turning angle when passing through the roller 1207 and can smoothly enter and exit the groove of the roller 1207. The roller 1207 will rotate with the pulling of the optical cable, and the tension applied to the optical cable will be transmitted to the sensor body 1201 for tension detection. The optical cable bears different degrees of tension during transmission. When the tension is normal, the optical cable only slightly contacts the roller 1207; when the tension increases, the extrusion force of the optical cable on the roller 1207 increases; and when the optical cable is relaxed, the contact between the optical cable and the roller 1207 decreases or even separates. Through the changes of these contact states, the tension condition of the optical cable can be indirectly reflected.

[0055] In particular in use, the released optical cable 17 first passes through a group of roller assemblies 1209 after entering the optical cable tension measurement mechanism 12, to ensure that the released optical cable 17 is smoothly transmitted along the specified direction and prevent it from sagging. Then, the released optical cable 17 passes through the roller 1207 to transmit the tension of the released optical cable 17 to the sensor body 1201, to realize real-time tension measurement and recording. After completing the tension measurement, the released optical cable 17 is output along the roller 1207 and sent out through another group of roller assemblies 1209.

[0056] In one specific embodiment, as shown in Figure 3 The optical cable release length measurement mechanism 13 further includes two groups of longitudinal roller assemblies 1208 and a circular guide positioning hole 1317. The two groups of longitudinal roller assemblies 1208 are connected to the front side of the top plate 1203, and the circular guide positioning hole 1317 is fixedly connected to the inner top surface of the length measurement support 7. The released optical cable 17 of the first optical cable winding drum 10 is sequentially pulled out from the circular guide positioning hole 1317 through the third guide wheel 1306, a group of longitudinal roller assemblies 1208, a group of roller assemblies 1209, the roller 1207, another group of roller assemblies 1209, and another group of longitudinal roller assemblies 1208.

[0057] On the basis of this structure, the released optical cable 17 first passes through a group of longitudinal roller assemblies 1208 after entering the optical cable tension measurement mechanism 12, and then enters a group of roller assemblies 1209. After coming out from another group of roller assemblies 1209, the released optical cable 17 continues to enter another group of longitudinal roller assemblies 1208, to further ensure that the released optical cable 17 can be smoothly transmitted along the specified direction. The optical cable sent out from another group of longitudinal roller assemblies 1208 passes through the circular guide positioning hole 1317, to ensure that the released optical cable 17 continues to be transmitted according to the fixed direction and angle. Finally, the released optical cable 17 is stably laid in the cable hook on the side of the tunnel, and the entire optical cable release process is completed.

[0058] The structure of the longitudinal roller assembly 1208 is the same as that of the roller assembly 1209. The arrangement of the roller assembly 1209 and the longitudinal roller assembly 1208 not only prevents the optical cable from shaking left and right during measurement, but also provides directional guidance for the optical cable entering the optical cable tension measurement mechanism 12, and ensures that the optical cable is transmitted in a fixed direction to avoid deviation.

[0059] The optical cable payout length measurement mechanism 13 provided by the embodiment of the present application realizes high-precision optical cable length measurement and stable optical cable transmission through the precise cooperation of the arrangement of the three guide wheels, the encoder 1304, the roller assembly 1209 and the longitudinal roller assembly 1208. It can effectively prevent the optical cable from deviating and falling, and also ensures the continuity and stability of data transmission. The entire device can operate stably and efficiently for a long time in an automated operation, has good wear resistance and reliability, is suitable for optical cable management in complex environments, and significantly improves the efficiency and accuracy of overall measurement and monitoring. The optical cable tension measurement mechanism 12 realizes accurate monitoring of the tension of the optical cable through the combination of the roller 1207 and the roller assembly 1209, prevents damage to the optical cable caused by looseness or tightness, ensures the stability of the optical cable during transmission, and can transmit data to the control mechanism 2 in real time to realize rapid response. This structure design is particularly suitable for complex coal mine environments and helps to improve the safety and measurement accuracy of optical cable management.

[0060] Further, the optical fiber slip ring is used to ensure the continuous transmission of optical signals in rotating equipment and avoid optical cable winding or damage. It supports multi-channel optical signal transmission and is suitable for data transmission requirements in complex environments. The optical fiber slip ring is composed of a rotor end, a stator end, an optical fiber channel and an optical fiber interface. The rotor end is responsible for rotation, ensuring that signals can be transmitted without loss when the optical cable system rotates continuously, the stator end ensures smooth transmission of optical signals inside and outside the device, and the optical fiber interface uses a standard connector for easy connection with external devices. The optical fiber slip ring has sealing and protection functions and can work reliably in harsh environments, making it suitable for scenarios such as coal mines that require high signal transmission. In the coal mine tunneling face, the optical cable needs to be laid through the rotation of the roller, with one end connected to the cable hook on the side of the roadway and the other end connected to the centralized control center and other equipment on the self-moving machine tail. Therefore, the previous method of using a single roller to wind the optical cable has its limitations in this scenario, especially when both ends of the optical cable need to be connected to the equipment and the optical cable needs to be laid out for rotation. The traditional roller cannot meet the requirements. Therefore, for this special situation, the embodiment of the present application uses two independent optical cable winding rollers and realizes the stable laying out and rotation of the optical cable through the optical fiber slip ring mechanism. Specifically, the present application uses two three-channel optical fiber slip rings, the first two channels are used for communication between the working face operation system and the ground control center, and the third channel is used to connect the OTDR 6 to monitor the optical cable status in real time.

[0061] In one embodiment, as shown in Figures 5 to 12 The optical fiber slip ring mechanism includes an L-shaped support seat 5, a first optical fiber slip ring 14, a second optical fiber slip ring 15, an optical fiber drum 506, and a support seat 505. The first optical fiber slip ring 14 and the second optical fiber slip ring 15 are both three-channel optical fiber slip rings, two channels for transmitting signals, and the third channel for detecting cable breakpoints. The rotor end flange plate 1405 of the first optical fiber slip ring 14 is fixedly connected with the first right baffle 1001 of the first cable winding drum 10, the stator end flange plate 1407 of the first optical fiber slip ring 14 is connected with the left flange of the optical fiber drum 506, the optical fiber drum 506 is fixed on the support seat 505, the right side of the optical fiber drum 506 is bolted with the stator end flange plate of the second optical fiber slip ring 15, the rotor end flange plate of the second optical fiber slip ring 15 is bolted with the second left baffle 1801 of the second cable winding drum 18, the support seat 505 is fixed on the horizontal part 501 of the L-shaped support seat 5, and the horizontal part 501 of the L-shaped support seat 5 is fixedly connected with the support frame 1 through the support bolt hole 504 and the support bolt and is located at the front side of the middle part of the support frame 1.

[0062] Specifically, as shown in Figure 5 The optical fiber slip ring mechanism is sequentially divided into the rotor end and the stator end of the first optical fiber slip ring 14 and the stator end and the rotor end of the second optical fiber slip ring 15 from left to right. The first optical fiber slip ring 14 and the second optical fiber slip ring 15 have the same structure, and the composition and connection of the first optical fiber slip ring 14 are mainly introduced below.

[0063] The rotor end of the first optical fiber slip ring 14 is provided with three optical fiber channels 1401, which are one-to-one corresponding to the inner side of the bidirectional connection device 2001 of the optical fiber port installed in the first cable winding drum 10, ensuring the stable transmission of optical signals and supporting the breakpoint detection of the OTDR 6. The optical fiber guiding assembly 1402 is responsible for guiding the optical cable to the rotor end of the first optical fiber slip ring 14, ensuring that the optical cable maintains the correct path during rotation. The fixed flange plate support 1403 is coaxially matched with the first cable winding drum 10, providing preliminary support. The rotor end flange plate 1405 is bolted with the first right baffle 1001 of the first cable winding drum 10 through the rotor end flange bolt hole 1404 and the rotor end bolt assembly 1002, ensuring that the rotor end of the first optical fiber slip ring 14 is coaxially fastened with the first cable winding drum 10. The stator end flange plate 1407 is connected with the left flange of the optical fiber drum 506 through the stator end flange bolt hole 1408, ensuring that the stator end of the first optical fiber slip ring 14 is coaxially matched with the optical fiber drum 506. The rotor end rotating support ring 1406 allows the rotor end to rotate around the stator end, ensuring the continuous transmission of optical signals. The stator end fixed flange plate support 1409 is matched with the optical fiber drum 506, providing support for the stator end and ensuring the stable transmission of optical signals at the stator end. The stator end connector 1410 is responsible for the signal transmission from the rotor end to the stator end and completes the input and output of optical signals through the optical cable.

[0064] The second fiber slip ring 15 is structurally identical to the first fiber slip ring 14, and its stator end is fixedly connected to the right side of the fiber drum 506 through the stator end bolt hole 1501, and its rotor end is fixedly connected to the second left baffle 1801 of the second cable winding drum 18 through the rotor end bolt hole 1502, and is further connected to the inner side of the fiber port bidirectional connection device 2001 in the second cable winding drum 18, to ensure the smooth progress of the cable communication.

[0065] The fiber port bidirectional connection device 2001 will be introduced below. Specifically, as shown in Figures 6 to 12 , grooves are formed on the first cable winding roller of the first cable winding drum 10 and the second cable winding roller of the second cable winding drum 18, and the fiber port bidirectional connection device 2001 is fixedly connected in the grooves through rivets 2002, and three fiber couplers 2003 are installed on the fiber port bidirectional connection device 2001, and the optical cable 16 wound on the first cable winding drum 10 and the second cable winding drum 18 includes three-core optical fibers, and the three-core optical fibers at one end of the optical cable 16 wound on the first cable winding drum 10 are respectively inserted into the three fiber channels 1401 of the first fiber slip ring 14 through the three fiber couplers 2003, and are sequentially passed through the fiber guide assembly 1402, the rotor end and the stator end of the first fiber slip ring 14, the stator end and the rotor end of the second fiber slip ring 15, the fiber guide assembly of the second fiber slip ring 15, the three fiber channels and the fiber guide assembly of the second fiber slip ring 15, the three fiber couplers 2003 of the fiber port bidirectional connection device 2001 on the second cable winding drum 18, and are coupled together through the cable external interface 2004 and wound on the second cable winding drum 18, and one core of the three-core optical fibers is disconnected between the stator ends of the first fiber slip ring 14 and the second fiber slip ring 15 and connected to the optical cable breakpoint detection mechanism.

[0066] As shown in Figure 13 , the optical cable breakpoint detection mechanism includes an OTDR 6, and the vertical portion 502 of the L-shaped support seat 5 is inclinedly arranged, and the OTDR 6 is fixed to the vertical portion 502 of the L-shaped support seat 5 through its fixing assembly 601, bolt hole 503 and OTDR bolt, and one core of the optical fiber disconnected between the stator ends of the first fiber slip ring 14 and the second fiber slip ring 15 is connected to the fiber input port of the OTDR 6, and the power supply end of the OTDR 6 is connected to the explosion-proof power supply 4 through the power supply line 602.

[0067] Specifically, the OTDR (Optical Time-Domain Reflectometer) is a device for optical cable network testing and maintenance, which can detect faults in the optical cable, assess the loss, and identify reflection events. By analyzing the return of the optical signal, the OTDR 6 can accurately locate the breakpoint, damage location and joint location of the optical cable. At the same time, the OTDR 6 can also generate a loss curve to help evaluate the quality of the optical cable and provide real-time monitoring of the optical cable. In the case of data transmission function, the OTDR 6 can transmit the breakpoint detection signal to the control mechanism 2 to realize fault warning and predictive maintenance, thereby improving the overall reliability of the optical cable network.

[0068] The optical fiber input port of the OTDR 6 is connected to one core optical fiber in the optical fiber slip ring mechanism, and the OTDR 6 periodically sends optical pulses to the optical fiber. By detecting the returned optical pulse signal, the OTDR 6 can identify the breakpoint, optical attenuation and other state information in the optical fiber. The communication line 603 connects the OTDR 6 with the control mechanism 2, and transmits the breakpoint detection data in real time for analysis and processing by the system. When an abnormal situation (such as a breakpoint or excessive signal attenuation) is detected, the control mechanism 2 will automatically send a warning signal to the audible and visual alarm 3, and take appropriate measures according to the preset strategy.

[0069] In one specific embodiment, as shown in Figure 14 The power mechanism 9 includes a motor 901, which is fixed to the support frame 1 by a motor bolt 903 and located on the left side of the optical cable pay-off length measuring mechanism 13. The motor 901 is electrically connected to the explosion-proof power supply 4 and the control mechanism 2 through a motor cable 902. The output shaft of the motor 901 is fixedly connected with a driving gear 904, and the left end of the transmission shaft 1003 of the first optical cable winding drum 10 is fixedly connected with a driving gear 906. The driving gear 904 and the driving gear 906 are drivingly connected through a belt 905.

[0070] Specifically, the motor 901 as the core driving component of the power mechanism 9 is responsible for providing rotary power for the winding and unwinding of the optical cable. The motor 901 is connected to the explosion-proof power supply 4 and the control mechanism 2 through the motor cable 902, and receives control signals in real time to realize power transmission. The motor 901 is firmly installed on the bottom of the support frame 1 through the motor bolt 903, ensuring that it is not affected by vibration or external force during operation, and ensuring the stability and reliability of the device. The transmission shaft 1003 of the first optical cable winding drum 10 and the driving gear 906 are fixedly connected through axial and circumferential fixing, realizing synchronous rotation. The driving gear 904 fixedly connected to the output shaft of the motor 901 transmits rotary power to the driving gear 906 through the belt 905, thereby further driving the smooth winding or releasing operation of the optical cable on the first optical cable winding drum 10. This design ensures the smoothness of the optical cable in different working states through the transmission of power, avoiding the phenomenon of jamming or instability of the optical cable during winding and unwinding.

[0071] In the process of optical cable pay-off, the optical cable tension measuring mechanism 12 monitors the optical cable tension in real time and sends the tension measurement data to the control mechanism 2. When the tension exceeds the preset range, the control mechanism 2 adjusts the rotating speed of the motor 901 according to the tension measurement data, thereby dynamically controlling the pay-off speed of the optical cable and maintaining the balanced state of the optical cable tension. When it is detected that the optical cable tension is too large, the control mechanism 2 controls the motor 901 to speed up the pay-off speed to reduce the tightening strength of the optical cable; when the tension is too small, the control mechanism 2 controls the motor 901 to slow down the pay-off speed to maintain the normal tension range. Through such a closed-loop control, the power mechanism 9 and the optical cable tension measuring mechanism 12 form a cooperative operation, ensuring that the tension of the optical cable during transmission is always in the best state, avoiding the sudden over-tightening or over-loosening of the optical cable during the pay-off process, and ensuring the stability of the optical cable transmission.

[0072] In one specific embodiment, the optical cable automatic pay-off device for the coal mine tunneling working face further comprises an optical cable pay-off guide frame 8 fixedly connected to the right front side of the support frame 1, used for guiding the optical cable 17 payed off by the second optical cable winding drum 18. The optical cable pay-off guide frame 8 is a square opening structure. The optical cable 17 payed off by the second optical cable winding drum 18 is transmitted along the optical cable pay-off guide frame 8, ensuring that the optical cable does not sag, and is connected to the centralized control center in front of the tunneling working face, ensuring normal communication signal transmission.

[0073] In the embodiment of the present application, the control mechanism 2 is the core control module of the device, responsible for receiving and processing real-time data from various sensors (optical cable pay-off length measuring mechanism 13, optical cable tension measuring mechanism 12, optical cable breakpoint detection mechanism) to monitor the signal integrity, length and tension of the optical cable. The data processing flow is as shown in Figure 15 According to the data feedback by the sensors and the set threshold value, it is judged whether the state of the optical cable is normal, in a pre-warning state, or in an abnormal state; when an abnormality occurs, the device automatically issues an instruction to control the optical cable pay-off process, and at the same time, an audible and visual alarm 3 is issued to prompt the operator to quickly judge and take action.

[0074] According to the signals feedback by the sensors, the control mechanism 2 is divided into the following cases as shown in Table 1:

[0075]

[0076] Explanation: Green light: indicating that the system is normal, and the operator does not need to intervene; yellow light: indicating that the system is in a pre-warning state, and the operator needs to pay attention to monitoring the state of the optical cable; red light: indicating that the system is abnormal, and the operator needs to take measures immediately.

[0077] In summary, the optical cable automatic pay-off device for the coal mine tunneling working face provided in the embodiment of the present application has the following characteristics:

[0078] 1)The device adopts modular design, each sensor (optical cable length measurement mechanism 13, optical cable tension measurement mechanism 12, optical cable breakpoint detection mechanism, etc.) and control mechanism 2 can be independently replaced or upgraded, convenient maintenance and expansion, improve the flexibility and stability of the device.

[0079] 2)Through the integration of optical fiber slip ring mechanism and OTDR6, continuous transmission of optical signal is supported, and real-time detection of optical cable breakpoint and signal attenuation is realized, which improves the safety and reliability of the device.

[0080] 3)The special combination of three guide wheels in the optical cable length measurement mechanism 13 and the encoder 1304 can further cooperate to measure the length of the released optical cable in real time.

[0081] 4)Through the cooperation of optical cable tension measurement mechanism 12 and power mechanism 9, automatic release and tension adjustment of optical cable can be realized, ensuring the safe laying of optical cable in complex environment.

[0082] 5)Intelligent control of control mechanism 2: integrate measurement data from various sensors, judge optical cable state according to preset threshold and automatically issue control instructions, with early warning and abnormal prompt function.

[0083] 6)The combined optical fiber slip ring connection drum optical fiber port bidirectional connection device 2001 adopts a universal optical fiber connection interface, avoiding complicated optical fiber fusion operation, greatly improving the convenience of installation and maintenance.

[0084] 7)The device has voice alarm and light prompt function, which can issue alarm in time when optical cable is abnormal, and adopts explosion-proof design to ensure safe operation in coal mine harsh environment. When the optical cable state is abnormal, the light signal and voice alarm are automatically triggered to help the operator find the problem in time and take measures to prevent accidents.

[0085] 8)Realize the automatic release and real-time monitoring of optical cable, reduce the dependence on manual operation, effectively reduce the risk of human error. It can monitor the length, tension and breakpoint of the released optical cable in real time, ensure the stability of the optical cable, and automatically adjust the cable release speed and tension according to real-time data.

[0086] The above is only the preferred embodiment of the present application, and is not used to limit the present application. It should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, which should be regarded as the protection scope of the present application.

Claims

1. An automatic fiber optic cable take-up and take-up device for a coal mine tunneling face, characterized in that, The support frame (1) is a square frame with openings at the front and back. A first optical cable winding roller (10) is rotatably connected to the left side inside the support frame (1), and a second optical cable winding roller (18) is rotatably connected to the right side inside the support frame (1). The first optical cable winding roller (10) and the second optical cable winding roller (18) are connected by an optical fiber slip ring mechanism. An optical cable release length measuring mechanism (13) is installed in front of the first optical cable winding roller (10), and an optical cable tension measuring mechanism (12) is installed behind the first optical cable winding roller (10). The optical cable release length measuring mechanism (13) is installed on the left side. There is a power mechanism (9), and a fiber optic cable release length measuring mechanism (13) is installed on the right side of the fiber optic cable breakage detection mechanism. The support frame (1) is equipped with a control mechanism (2), an audible and visual alarm (3) and an explosion-proof power supply (4). The fiber optic cable release length measuring mechanism (13), the fiber optic cable tension measuring mechanism (12), the fiber optic cable breakage detection mechanism, the power mechanism (9) and the audible and visual alarm (3) are all electrically connected to the control mechanism (2). The fiber optic cable (17) released by the first fiber optic cable winding roller (10) is used for laying at the fixed hook on the side wall of the roadway. The second fiber optic cable winding roller (18) is used to connect to the control center of the self-moving machine tail. The power mechanism (9) provides power for the first optical cable winding drum (10) to wind and unwind the optical cable; the optical cable unwinding length measuring mechanism (13) is used to measure the length of the optical cable (17) unwinding from the first optical cable winding drum (10) in real time; the optical cable tension measuring mechanism (12) is used to measure the tension of the optical cable (17) unwinding from the first optical cable winding drum (10) in real time; the optical cable break point detection mechanism is used to detect whether the optical cable has a break point; the control mechanism (2) is used to determine the optical cable unwinding length based on the data fed back by the optical cable unwinding length measuring mechanism (13), judge the optical cable tension based on the data fed back by the optical cable tension measuring mechanism (12), control the action of the power mechanism (9) based on the optical cable tension, and judge whether the optical cable has a break point based on the data fed back by the optical cable break point detection mechanism; the fiber optic slip ring mechanism is used to maintain the normal transmission of signals between the first optical cable winding drum (10) and the second optical cable winding drum (18); the explosion-proof power supply (4) is used to power the entire device. The fiber optic slip ring mechanism includes an L-shaped support base (5), a first fiber optic slip ring (14), a second fiber optic slip ring (15), a fiber optic roller (506), and a support base (505). Both the first fiber optic slip ring (14) and the second fiber optic slip ring (15) are three-channel fiber optic slip rings. Two channels are used for signal transmission, and the third channel is used for detecting fiber optic cable breaks. The rotor end flange (1405) of the first fiber optic slip ring (14) is fixedly connected to the first right baffle (1001) of the first fiber optic cable winding roller (10). The stator end flange (1407) of the first fiber optic slip ring (14) is connected to the optical cable winding roller (10). The fiber roller (506) is connected to the left flange, the fiber roller (506) is fixed on the support base (505), the fiber roller (506) is bolted to the stator end flange of the second fiber slip ring (15) on the right side, the rotor end flange of the second fiber slip ring (15) is bolted to the second left baffle (1801) of the second optical cable winding roller (18), the support base (505) is fixed to the horizontal part (501) of the L-shaped support base (5), the horizontal part (501) of the L-shaped support base (5) is fixedly connected to the support frame (1) and located in the front of the middle part of the support frame (1); Both the first optical cable winding roller (10) and the second optical cable winding roller (18) have grooves, and a bidirectional optical fiber port connection device (2001) is fixedly connected in the groove. Three optical fiber couplers (2003) are installed on the bidirectional optical fiber port connection device (2001). The optical cable (16) wound on the first optical cable winding roller (10) and the second optical cable winding roller (18) includes three optical fibers. The three optical fibers at one end of the optical cable (16) wound on the first optical cable winding roller (10) are respectively connected to the three optical fiber couplers (2003). The fiber optic cable is inserted into the three fiber optic channels (1401) of the first fiber optic slip ring (14) and passes sequentially through its fiber optic guide assembly (1402), rotor end and stator end, stator end and rotor end of the second fiber optic slip ring (15), the three fiber optic channels of the second fiber optic slip ring (15), the fiber optic guide assembly, and the three fiber optic couplers (2003) of the fiber optic port bidirectional connection device (2001) on the second optical cable winding roller (18). After that, it is coupled together through the external interface (2004) of the optical cable and wound on the second optical cable winding roller (18). The optical cable break detection mechanism includes an OTDR (6), the vertical part (502) of the L-shaped support (5) is inclined, the OTDR (6) is fixed to the vertical part (502) of the L-shaped support (5), a core optical fiber that is broken between the stator end of the first optical fiber slip ring (14) and the second optical fiber slip ring (15) is connected to the optical fiber input port of the OTDR (6), and the OTDR (6) is electrically connected to the explosion-proof power supply (4).

2. The automatic fiber optic cable take-up and drop-off device for coal mine tunneling faces according to claim 1, characterized in that, The optical cable release length measuring mechanism (13) includes a length measuring bracket (7), which is a square frame with openings at the front and back. The length measuring bracket (7) is fixedly connected to the support frame (1) and located in front of the first optical cable winding roller (10). An L-shaped support plate (1303) is fixedly connected at the intersection of the right side and the top side of the length measuring bracket (7). An encoder (1304) and two central shafts (1307) are fixedly connected to the vertical part of the L-shaped support plate (1303). The encoder (1304) is electrically connected to the control mechanism (2) through an encoder cable (1301). The ends of the two central shafts (1307) away from the L-shaped support plate (1303) are respectively rotatably connected to a first guide. The encoder (1304) is rotatably connected to a rotating shaft at the end away from the L-shaped support plate (1303). A second guide wheel (1314) is fixedly connected to the rotating shaft. The second guide wheel (1314) is located between the first guide wheel (1309) and the third guide wheel (1306). The two central shafts (1307) and the end of the rotating shaft away from the L-shaped support plate (1303) pass through the three corners of the triangular bracket (1311) and are then fixed. The optical cable (17) released from the first optical cable winding drum (10) passes through the first guide wheel (1309), the second guide wheel (1314) and the third guide wheel (1306) in sequence and then enters the optical cable tension measuring mechanism (12).

3. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 2, characterized in that, The optical cable tension measuring mechanism (12) includes a tension measuring bracket (11), a top plate (1203), and a tension sensor. The tension measuring bracket (11) is a square frame with openings at the front and back. The tension measuring bracket (11) is fixedly connected to the support frame (1) and located behind the first optical cable winding roller (10). The top plate (1203) is fixedly connected to the inner top surface of the tension measuring bracket (11). Two sets of roller assemblies (1209) are symmetrically installed at the rear position of the middle of the top plate (1203). The tension sensor is installed in the middle of the rear side of the top plate (1203). The roller of the tension sensor... (1207) is located between two sets of roller assemblies (1209). The tension sensor body (1201) extends from the top surface of the top plate (1203) and the tension measuring bracket (11) and is fixedly connected to the tension measuring bracket (11) and the top plate (1203). The tension sensor body (1201) is electrically connected to the control mechanism (2) through the sensor cable (1202). The optical cable (17) released from the optical cable release length measuring mechanism (13) passes through one set of roller assemblies (1209), the roller (1207) and another set of roller assemblies (1209) in sequence before being released.

4. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 1 or 2, characterized in that, The power mechanism (9) includes a motor (901), which is fixed on the support frame (1) and located to the left of the optical cable release length measuring mechanism (13). The motor (901) is electrically connected to the explosion-proof power supply (4) and the control mechanism (2) through the motor cable (902). The output shaft of the motor (901) is fixedly connected to the drive gear (904). The left end of the transmission shaft (1003) of the first optical cable winding roller (10) is fixedly connected to the drive gear (906). The drive gear (904) and the drive gear (906) are connected by a belt (905).

5. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 2, characterized in that, The optical cable release length measuring mechanism (13) further includes two sets of transverse guide rollers (1315) and a circular hole directional rod (1316). The two sets of transverse guide rollers (1315) are arranged in parallel vertically, and the two ends of the two sets of transverse guide rollers (1315) are rotatably connected to the left and right sides of the length measuring bracket (7), respectively. The circular hole directional rod (1316) is located above the two sets of transverse guide rollers (1315). The two ends of the circular hole directional rod (1316) are fixedly connected to the left and right sides of the length measuring bracket (7), respectively. An optical cable guide hole is opened in the middle of the circular hole directional rod (1316). The optical cable (17) released from the first optical cable winding roller (10) passes through the gap between the two sets of transverse guide rollers (1315), the optical cable guide hole, the first guide wheel (1309), the second guide wheel (1314), and the third guide wheel (1306) in sequence before entering the optical cable tension measuring mechanism (12).

6. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 2, characterized in that, Two central shafts (1307) are fixedly connected to the first baffle (1310) and the third baffle (1308) on both sides of the first guide wheel (1309) and the third guide wheel (1306), respectively. The rotating shaft is equipped with the second baffle (1313) on both sides of the second guide wheel (1314).

7. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 3, characterized in that, The optical cable release length measuring mechanism (13) also includes two sets of longitudinal roller assemblies (1208) and a circular guide positioning hole (1317). The two sets of longitudinal roller assemblies (1208) are connected to the front side of the top plate (1203). The circular guide positioning hole (1317) is fixedly connected to the inner top surface of the length measuring bracket (7). The optical cable (17) released from the first optical cable winding roller (10) passes through the third guide wheel (1306), a set of longitudinal roller assemblies (1208), a set of roller assemblies (1209), a roller (1207), another set of roller assemblies (1209) and another set of longitudinal roller assemblies (1208) in sequence and is then pulled out from the circular guide positioning hole (1317).

8. The automatic fiber optic cable take-up and take-up device for coal mine tunneling faces according to claim 2, characterized in that, It also includes a fiber optic cable release guide frame (8), which is fixedly connected to the front right side of the support frame (1) and is used to guide the fiber optic cable (17) released from the second fiber optic cable winding roller (18).

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