Rapid laying device and method for bundled pipes in coal mine goaf
By designing a rapid laying device for bundled tubes in coal mine goaf areas, and using mechanized equipment to automatically lay bundled tubes and temperature measuring wires, the problem of time-consuming and labor-intensive manual laying in existing technologies is solved, the efficiency of underground monitoring is improved, and efficient fire risk assessment and prevention measures are supported.
Patent Information
- Application Number
- CN202411757356.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2044-12-03
AI Technical Summary
In existing technologies, the laying of bundled pipes and temperature measuring wires in the goaf of coal mines relies on manual labor, which is time-consuming, labor-intensive, and difficult to complete efficiently, thus affecting the implementation of fire prevention measures.
A rapid laying device for bundled tubes in coal mine goaf areas was designed, including a moving unit and a working unit. It utilizes a motor, reducer, double rocker arm device, roller mechanism and transmission wheel mechanism to achieve automatic laying and retrieval of bundled tubes and temperature measuring wires through mechanization, reducing manual intervention.
It improves the efficiency of laying underground tubing and temperature measuring wires, reduces the workload of workers, enables rapid and safe laying of monitoring pipelines in goaf areas, and supports efficient fire risk assessment and prevention measures.
Smart Images

Figure CN119687271B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of fire prevention technology in coal mine goaf areas, and specifically provides a rapid laying device and method for bundled pipes in coal mine goaf areas. Background Technology
[0002] my country's energy structure is dominated by coal, and coal production must meet the needs of national economic and social development. Due to geographical limitations, my country's coal production mainly employs underground mining methods. Disasters occurring underground are far more difficult to handle than those on the surface; therefore, implementing a series of preventative measures in coal mines is particularly important.
[0003] The five major hazards faced by coal mines include: gas disasters, floods, fires, roof falls, and mine dust disasters. Fires not only destroy large amounts of equipment and coal resources, but can also trigger secondary disasters such as gas and coal dust explosions, while simultaneously producing high-temperature smoke and toxic gases, seriously threatening the lives of underground workers. Once a fire occurs in a coal mine, it will cause enormous losses to the enterprise, society, and even the country. For coal mines, when the coal seam being mined has spontaneous combustion characteristics, especially under the top-coal caving mining method, the amount of coal left in the goaf is large. If there is air leakage, this leftover coal will gradually heat up and accumulate heat under oxidation, which may eventually lead to spontaneous combustion and a fire in the goaf. Research on the spontaneous combustion process of leftover coal in the goaf reveals that it is a gradual process. Based on the differences in temperature and gas content caused by the heat accumulation and release of leftover coal in different areas of the goaf, the goaf can be divided into three natural "zones": the heat dissipation zone, the oxidation and heating zone, and the asphyxiation zone. Accurately understanding the distribution of the three natural zones in the goaf is crucial for determining whether there is a fire hazard underground in the coal mine, predicting fire risks, and implementing fire prevention and extinguishing measures.
[0004] Currently, the division of the natural "three zones" in a goaf mainly relies on measuring the gas content and temperature in different areas within the goaf. The specific method involves laying bundled tubes and temperature-measuring wires within the goaf to collect gas and detect temperature. Typically, these bundled tubes and temperature-measuring wires are laid in the intake or return airway of the coal face. The process requires sequentially threading the pre-wound bundled tubes and temperature-measuring wires through a steel pipe and connecting them section by section. As the length of the steel pipe increases, the total resistance of the bundled tubes and temperature-measuring wires gradually increases, necessitating continuously increasing tension until completion. The entire process is entirely manual, requiring a large number of personnel and is time-consuming and labor-intensive. Summary of the Invention
[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a rapid laying device for bundled tubes in coal mine goaf areas, comprising a moving unit and a working unit; the working unit is placed on the moving unit and moves through the moving unit;
[0006] The working unit includes a chassis, a motor, a drive gear, a reducer, a double rocker arm device, an upper roller ring, a lower roller ring, a roller mechanism, and a transmission wheel mechanism. The output shaft of the motor is connected to the reducer via a coupling. The output shaft of the motor is a telescopic structure and is equipped with a drive gear. When the output shaft of the motor is extended, the drive gear on the motor is placed in the coupling. When the output shaft of the motor is retracted, the drive gear on the motor is disengaged from the coupling. The output shaft of the reducer is connected to the double rocker arm device. The two output ends of the double rocker arm device are respectively equipped with an upper roller ring and a lower roller ring. The double rocker arm device is also equipped with a proportional pneumatic pressing device.
[0007] The roller mechanism includes a roller, a roller bearing, a roller support, a rotating shaft, a linkage gear, a fixing hole, a guide tube, a roller support connecting beam, and fixing bolts; the bottom end of the roller support is fixed to the roller support connecting beam, the roller support connecting beam is movably and detachably mounted on the chassis and located on one side of the double rocker arm device by fixing bolts, the top end of the roller support is rotatably connected to the roller by a rotating shaft and a roller bearing, a linkage gear is installed at the end of the rotating shaft, and a fixing hole is provided on the roller;
[0008] The transmission wheel mechanism includes a transmission gear, a transmission gear bearing, and a transmission gear support. The transmission gear support is fixed on the chassis and located next to the motor. The upper end of the transmission gear support is connected to the transmission gear through the transmission gear bearing and the transmission gear shaft.
[0009] When the working unit is in its initial state, the motor's output shaft is extended, and the driving gear on the motor and the linkage gear in the roller mechanism are separated from the transmission gear in the transmission wheel mechanism. At this time, the motor, reducer, and double rocker arm device are connected. The end of the threading tube is passed through the fixing hole and fixed to the roller, and the threading tube is wound up on the outer circumference of the roller. When the threading tube is being conveyed, the front end of the threading tube is passed between the upper and lower roller rings. The pneumatic pressing device is activated according to the proportional action, and the upper and lower roller rings clamp the threading tube. The motor is started and rotated forward, and the power is transmitted to the double rocker arm device through the reducer. The upper and lower roller rings of the double rocker arm device drive the conveying of the threading tube by rotation.
[0010] When the threading tube is retracted, the motor's output shaft is in the retracted state, and the motor's drive gear meshes with the transmission gear in the transmission wheel mechanism. At the same time, the position of the roller support connecting beam of the moving roller mechanism is adjusted so that the linkage gear meshes with the transmission gear. Then, the roller support connecting beam is fixed to the chassis. At this time, the transmission gear of the transmission wheel mechanism is meshed with the drive gear on the motor and the linkage gear in the roller mechanism. The end of the threading tube is taken out from the fixing hole and then from the upper and lower roller rings. It is then passed back through the fixing hole and fixed to the roller. The motor is started and reversed. Through the transmission of the drive gear, transmission gear, and linkage gear, the roller reverses, and the threading tube is wound up on the outer circumference of the roller.
[0011] Furthermore, the moving unit includes a handrail, a crossbeam, a base, and wheels. The base is a flat plate structure, and a handrail is installed on one side of the upper surface of the base. The handrail is an inverted U-shaped tube. The crossbeam is assembled in the middle of the handrail, and multiple wheels are assembled at the bottom of the base.
[0012] Furthermore, handles are symmetrically installed at the center of the upper surface of the chassis.
[0013] Furthermore, the chassis is made of resin material.
[0014] Furthermore, the motor is a pneumatic motor, and the motor is respectively provided with a forward rotation air duct interface and a reverse rotation air duct interface, which are respectively connected to the air supply duct.
[0015] Furthermore, a guide tube is installed at the front end of the double rocker arm device. After the front end of the threading tube passes through the upper roller ring and the lower roller ring, it passes through the guide tube. The guide tube limits the movement of the threading tube.
[0016] Furthermore, an inverted U-shaped guide buckle is installed above the chassis and between the roller mechanism and the double rocker arm device.
[0017] Furthermore, the front end of the insertion tube is conical with a diameter of 12mm-18mm and a wall thickness of 2mm-3mm, and there are length markings on the insertion tube.
[0018] Furthermore, a connection hole for installing a detection pipeline is provided on the side end face of the chassis.
[0019] This invention also provides a method for rapid laying of bundled tubes in coal mine goaf areas, which utilizes the aforementioned rapid laying device for bundled tubes in coal mine goaf areas. The specific construction process is as follows:
[0020] Step 1: Fabricate the wiring harness on the ground for laying within the testing pipeline:
[0021] Several detection points are set inside the detection pipeline, and the distance between each detection point is L;
[0022] The testing pipeline includes several testing pipes, several tees, several flanges, and several connecting bolts. A tee is installed between two adjacent testing pipes through flanges and connecting bolts. A tee is also installed on the front face of the foremost testing pipe through flanges and connecting bolts. The number of tees is the same as the number of testing points and corresponds to the position of the testing points.
[0023] The pipeline bundle is fabricated according to the required locations and number of detection points within the detection pipeline. The pipeline bundle comprises several groups of individual pipeline bundle units of varying lengths, with the number of individual units matching the number of detection points. Each group of individual pipeline bundle units includes a bundle tube, a temperature sensing lead, and a temperature sensor. The ends of the bundle tube and the temperature sensing lead are aligned and placed parallel to each other. The front end of the temperature sensing lead is recessed from the front end of the bundle tube by a distance L5. A temperature sensor is installed at the front end of the temperature sensing lead. After aligning the ends of each group of individual pipeline bundle units, they are bound together along the length of each individual unit from end to front using glass tape to form the pipeline bundle. Within each group of individual pipeline bundle units, a non-binding section of length L1 is provided from the front end of the bundle tube backwards; in this non-binding section, the bundle tube and the temperature sensing lead are not bound together using glass tape. Simultaneously, a binding section of length L2 is provided at the end of each group of individual pipeline bundle units for binding with the guide tube. The length difference between adjacent groups of individual pipeline bundle units is L.
[0024] Step 2: Connecting the downhole inspection pipeline:
[0025] In the underground coal mining face roadway, connect each detection pipe, tee, and flange in the detection pipeline. The end of the detection pipeline with the tee is close to the goaf, and the other end is far away from the goaf.
[0026] Step 3: Inspect the installation of the guide pipe within the pipeline:
[0027] The pre-fabricated pipeline bundle and the rapid laying device for bundled pipes in the goaf of the coal mine are lowered together into the roadway of the coal mining face. The working unit is transported to the end of the detection pipeline by the moving unit. Then, the working unit is removed from the moving unit and placed next to the detection pipeline using the handle. The output shaft of the motor is in the extended state and separated from the transmission gear in the transmission wheel mechanism. At the same time, the position of the roller support connecting beam of the roller mechanism is moved away from the toolbox, so that the linkage gear is separated from the transmission gear. Then, the roller support connecting beam is fixed to the chassis. At this time, the transmission gear of the transmission wheel mechanism is separated from the drive gear on the motor and the linkage gear in the roller mechanism.
[0028] Connect the last detection tube in the detection pipeline to the connection hole on the chassis using a flange and connecting bolts. This prevents the pipeline or working unit from moving and increasing the pushing resistance when the working unit pushes the guide tube into the detection pipeline. After the connection is completed, connect the forward rotation air duct interface on the motor to the air supply pipeline in the roadway through the air duct. Then, manually pass the front end of the guide tube on the roller through the inverted U-shaped guide buckle, between the upper and lower roller rings, and the guide tube in sequence, and send it into the detection tube connected to the chassis.
[0029] Press the proportional pneumatic pressing device to activate, the upper and lower roller rings clamp the threading tube, start the motor to make the motor rotate forward, and transmit the power to the double rocker arm device through the reducer. The upper and lower roller rings of the double rocker arm device drive the conveying of the threading tube by rotating. At this time, the roller rotates forward along with the conveying of the threading tube, realizing the continuous conveying of the threading tube in the detection pipeline.
[0030] Step 4: After the guide pipe is in place, adjust the motor output shaft to the retracted state so that the drive gear on the motor meshes with the transmission gear of the transmission wheel mechanism. At the same time, move the position of the roller support connecting beam so that the linkage gear in the roller mechanism meshes with the transmission gear. Then fix the roller support connecting beam to the chassis.
[0031] Then remove the end of the threading tube from the fixing hole and gradually pull it out from between the inverted U-shaped guide buckle, the upper roller ring and the lower roller ring, and the guide tube. Then fix the end of the threading tube back into the fixing hole on the roller, so that the threading tube is freed from the constraints of the guide tube, the upper roller ring, the lower roller ring and the inverted U-shaped guide buckle.
[0032] Step 5: Connect the binding section of the fabricated cable bundle to the front end of the guide tube located in the testing pipeline;
[0033] Step Six: Retrieve the lead-in conduit and lay the conduit bundle in the testing pipeline:
[0034] Connect the reverse air duct interface on the motor to the air supply pipeline in the tunnel through the air duct, then start the motor and reverse the motor. At this time, through the transmission of the drive gear, transmission gear and linkage gear, the drum reverses and the threading tube is wound up on the outer circumference of the drum. As the drum rotates continuously, the threading tube will pull the pipeline into the detection pipeline until the pipeline is laid in the detection pipeline. Then, turn off the motor and stop the retrieval of the threading tube.
[0035] Step 7: After the lead-in tubes are retrieved, locate each bundle of tubes and temperature measuring wires in the pipeline bundle one by one through each tee. Then install the perforated tubes on each tee and fix each bundle of tubes and each temperature sensor in the perforated tube respectively.
[0036] Step 8: Check whether each bundle tube is transparent and check the initial resistance of each temperature sensor;
[0037] Step 9: Transfer or retrieve the rapid laying device for bundled pipes in the goaf of the coal mine: disconnect the working unit from the detection pipeline and the air supply pipeline, lift the working unit onto the mobile unit and then transfer or retrieve it.
[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0039] (1) The rapid laying device for bundled pipes in the goaf of the present invention includes a moving unit and a working unit. The working unit moves underground through the moving unit, which is flexible and convenient to operate. The working unit, through the setting of a motor, reducer, double rocker arm device, roller mechanism and transmission wheel mechanism, realizes the laying of the bundled pipes in the underground inspection pipeline, reducing the number of workers, effectively reducing the workload and improving the work efficiency.
[0040] (2) In the rapid laying device for bundled tubes in the coal mine goaf of the present invention, the motor and roller mechanism can be moved and disassembled and installed on the chassis. First, the double rocker arm device driven by the motor delivers the guide tube into the underground detection pipeline. Then, the guide tube is fixed to the pipeline bundle. By moving the position of the motor and roller mechanism, the drive gear on the motor, the linkage gear in the roller mechanism and the transmission gear of the transmission wheel mechanism mesh to achieve transmission, so that the guide tube is retracted, and the pipeline bundle is laid in the detection pipeline, and the positions of each bundled tube and each temperature sensor in the pipeline bundle correspond to the positions of each detection point in the detection pipeline.
[0041] (3) In the process of conveying the guide tube, the present invention uses a guide tube and an inverted U-shaped guide buckle to limit the conveying direction of the guide tube. The front end of the guide tube of the present invention is conical and is made of a material that is lightweight, highly corrosion-resistant, highly malleable and has a certain degree of bending resistance, making it easier to move in the detection pipeline.
[0042] (4) In the rapid laying device for bundled tubes in the goaf of the coal mine of the present invention, a pneumatic motor can be used, which does not require a pre-set power supply line and makes the operation safer and more reliable. In addition, the device of the present invention has a simple structure, is easy to disassemble and move, and is easy to operate, making it convenient for large-scale promotion and application in underground mines. Attached Figure Description
[0043] Figure 1 This is a schematic diagram of the structure of the rapid laying device for bundled tubes in the goaf of a coal mine according to the present invention;
[0044] Figure 2 This is a schematic diagram of the top structure of the rapid laying device for bundled tubes in the goaf of a coal mine according to the present invention.
[0045] Figure 3 for Figure 2 The left view;
[0046] Figure 4 This is a schematic diagram of the assembly structure of the roller and the chassis of the present invention;
[0047] Figure 5 This is a top view of the roller support of the present invention;
[0048] Figure 6 This is a schematic diagram of the rapid laying device for bundled tubes in the goaf of the coal mine, after being connected to the detection pipeline for conveying through the guide pipe.
[0049] Figure 7 This is a schematic diagram of the rapid laying device for bundled pipes in coal mine goaf areas, after the threading pipe is connected to the pipeline bundle according to the present invention, for the retrieval of the threading pipe.
[0050] Figure 8 This is a schematic diagram of the structure of a single pipeline harness unit of the present invention;
[0051] Figure 9 This is a schematic diagram of the three sets of individual pipeline bundle structures in Embodiment 3 of the present invention, wherein, Figure 9 (a) is a structural schematic diagram of the first group of pipeline bundle units; Figure 9 (b) is a structural schematic diagram of the second group of pipeline bundle units; Figure 9 (c) is a structural schematic diagram of the third group of pipeline bundle units;
[0052] Figure 10 This is a schematic diagram of the internal connection of the pipeline harness in the detection pipeline in Embodiment 2 of the present invention;
[0053] Figure 11 This is a cross-sectional schematic diagram of the three sets of pipeline harnesses bound with glass tape in Embodiment 3 of the present invention;
[0054] Figure 12 This is a cross-sectional schematic diagram of the binding point of the second group of pipeline harness units and the third group of pipeline harness units using glass tape in Embodiment 3 of the present invention;
[0055] Figure 13 This is a cross-sectional schematic diagram of the section where the third group of pipeline harness units is bound with glass tape in Embodiment 3 of the present invention.
[0056] The reference numerals in the figures include:
[0057] 1001. Handrail; 1002. Crossbeam; 1003. Base; 1004. Wheel;
[0058] 2001. Chassis; 2002. Handle; 2003. Inverted U-shaped guide buckle; 2004. Connecting hole;
[0059] 2100 Motor; 2101 Forward rotation duct interface; 2102 Reverse rotation duct interface; 2103 Coupling; 2104 Drive gear; 2200 Reducer; 2300 Double rocker arm device; 2301 Proportional pneumatic pressing device; 2302 Upper roller ring; 2303 Lower roller ring; 2304 Guide tube;
[0060] 2400, Drum; 2401, Drum bearing; 2402, Drum support; 2403, Shaft; 2404, Linkage gear; 2405, Fixing hole; 2406, Through-tube; 2407, Drum support connecting beam; 2408, Fixing bolt;
[0061] 2500, Transmission gear; 2501, Transmission gear bearing; 2502, Transmission gear support;
[0062] 2600, Toolbox;
[0063] 3000, Conduit harness; 3001, Conduit bundle; 3002, Temperature sensing lead wire; 3003, Temperature sensor;
[0064] 3100, First bundle tube; 3200, First temperature sensing lead; 3300, First temperature sensor; 3400, Second bundle tube; 3500, Second temperature sensing lead; 3600, Second temperature sensor; 3700, Third bundle tube; 3800, Third temperature sensing lead; 3900, Third temperature sensor;
[0065] 4100, Inspection tube; 4200, Flange; 4300, T-joint; 4400, Perforated pipe; 4500, Connecting bolts;
[0066] 5000, glass tape. Detailed Implementation
[0067] The present invention will now be described in detail with reference to the accompanying drawings.
[0068] Example 1
[0069] Reference Figures 1-3 A rapid laying device for bundled tubes in coal mine goaf areas includes a moving unit and a working unit; the working unit is placed on the moving unit and moves through the moving unit.
[0070] The working unit includes a chassis 2001, a motor 2100, a drive gear 2104, a reducer 2200, a double rocker arm device 2300, an upper roller ring 2302, a lower roller ring 2303, a roller mechanism, and a transmission wheel mechanism. The motor 2100, reducer 2200, and double rocker arm device 2300 are mounted on the chassis 2001. The output shaft of the motor 2100 is connected to the reducer 2200 via a coupling 2103. The output shaft of the motor 2100 is telescopic and is equipped with the drive gear 2104. The output shaft of the motor 2100 is in an extended state. When the output shaft of the motor 2100 is in the retracted state, the drive gear 2104 on the motor 2100 is placed in the coupling 2103. The coupling 2103 has a space to accommodate the drive gear 2104. When the output shaft of the motor 2100 is in the retracted state, the drive gear 2104 on the motor 2100 is disengaged from the coupling 2103. The output shaft of the reducer 2200 is connected to the double rocker arm device 2300. The two output ends of the double rocker arm device 2300 are respectively equipped with an upper roller ring 2302 and a lower roller ring 2303. The double rocker arm device 2300 is also equipped with a proportional pneumatic pressing device 2301.
[0071] Reference Figures 4-7 The roller mechanism includes a roller 2400, a roller bearing 2401, a roller support 2402, a rotating shaft 2403, a linkage gear 2404, a fixing hole 2405, a through-tube 2406, a roller support connecting beam 2407, and fixing bolts 2408. The bottom end of the roller support 2402 is fixed to the roller support connecting beam 2407. The roller support connecting beam 2407 is movably and detachably mounted on the chassis 2001 and located on one side of the double rocker arm device 2300 by fixing bolts 2408. The top end of the roller support 2402 is rotatably connected to the roller 2400 through the rotating shaft 2403 and the roller bearing 2401. The linkage gear 2404 is installed at the end of the rotating shaft 2403. A fixing hole 2405 is provided on the roller 2400.
[0072] In this embodiment, the roller support 2402 is an inverted U-shape, and its bottom is a support connecting beam 2407. The support connecting beam 2407 is fixedly installed on the chassis 20012001 by multiple fixing bolts 2408.
[0073] Reference Figures 1-3 The transmission wheel mechanism includes a transmission gear 2500, a transmission gear bearing 2501, and a transmission gear support 2502. The transmission gear support 2502 is fixed on the chassis 2001 and located next to the motor 2100. The upper end of the transmission gear support 2502 is connected to the transmission gear 2500 through the transmission gear bearing 2501 and the transmission gear shaft.
[0074] When the working unit is in its initial state, the output shaft of the motor 2100 is extended, and the driving gear 2104 on the motor 2100 and the linkage gear 2404 in the roller mechanism are separated from the transmission gear 2500 in the transmission wheel mechanism. At this time, the motor 2100, the reducer 2200, and the double rocker arm device 2300 are connected. The end of the guide tube 2406 is passed through the fixing hole and fixed to the roller 2400, and the guide tube 2406 is wound up on the outer circumferential surface of the roller 2400. (Refer to...) Figure 6 When the guide tube 2406 is conveying, the front end of the guide tube 2406 passes between the upper roller ring 2302 and the lower roller ring 2303. The proportional pneumatic pressing device 2301 is activated, and the upper roller ring 2302 and the lower roller ring 2303 clamp the guide tube 2406. The motor 2100 is started and rotated forward, and the power is transmitted to the double rocker arm device 2300 through the reducer 2200. The upper roller ring 2302 and the lower roller ring 2303 of the double rocker arm device 2300 drive the conveying of the guide tube 2406 by rotation. At this time, the roller 2400 rotates forward with the conveying of the guide tube 2406. By adjusting the speed of the motor 2100, the speed of the upper roller ring 2302 and the lower roller ring 2303 can be adjusted, thereby adjusting the conveying speed of the guide tube 2406.
[0075] Reference Figure 7 When the threading tube 2406 is retracted, the output shaft of the motor 2100 is in the retracted state, and the drive gear 2104 on the motor 2100 meshes with the transmission gear 2500 in the transmission wheel mechanism. Simultaneously, the position of the roller support connecting beam 2407 of the moving roller mechanism is adjusted, causing the linkage gear 2404 to mesh with the transmission gear 2500. Then, the roller support connecting beam 2407 is fixed to the chassis 2001. At this point, the transmission gear 2500 of the transmission wheel mechanism is meshed with the drive gear 2104 on the motor 2100 and the linkage gear 2404 in the roller mechanism. The threading tube 2406... The end is taken out from the fixing hole 2405 and then from the upper roller ring 2302 and the lower roller ring 2303. It is then passed back through the fixing hole 2405 to fix the end of the threading tube 2406 onto the drum 2400. The motor 2100 is started and reversed. Through the transmission of the drive gear 2104, the transmission gear 2500 and the linkage gear 2404, the drum 2400 is reversed, and the threading tube 2406 is wound up on the outer circumference of the drum 2400. By adjusting the speed of the motor 2100, the speed of the drum 2400 is adjusted, thereby adjusting the recovery speed of the threading tube 2406.
[0076] The moving unit includes a handrail 1001, a crossbeam 1002, a base 1003, and wheels 1004. The base 1003 is a flat plate structure. The handrail 1001 is installed on one side of the upper surface of the base 1003. The handrail 1001 is an inverted U-shaped tube. The crossbeam 1002 is assembled in the middle of the handrail 1001. Multiple wheels 1004 are assembled at the bottom of the base 1003.
[0077] Handles 2002 are symmetrically installed at the middle position of the upper surface of the chassis 2001.
[0078] The chassis 2001 is made of resin material, which is non-conductive and has high strength.
[0079] The motor 2100 is a pneumatic motor, and the motor 2100 is respectively provided with a forward rotation air duct interface 2101 and a reverse rotation air duct interface 2102, which are respectively connected to the air supply duct.
[0080] A guide tube 2304 is installed at the front end of the double rocker arm device 2300. After the front end of the threading tube 2406 passes through the upper roller ring 2302 and the lower roller ring 2303, it passes through the guide tube 2304. The guide tube 2304 limits the threading tube 2406.
[0081] An inverted U-shaped guide buckle 2003 is installed above the chassis 2001 and between the roller mechanism and the double rocker arm device 2300.
[0082] The front end of the threading tube 2406 is conical, with a diameter of 12mm-18mm and a wall thickness of 2mm-3mm. The threading tube 2406 has length graduation lines. The threading tube 2406 is made of a lightweight, highly corrosion-resistant, highly malleable material with a certain degree of bending resistance, preferably aluminum-plastic composite material.
[0083] Reference Figure 1 A connection hole 2004 for installing a detection pipeline is provided on the side end face of the chassis 2001, and the connection hole 2004 is located on the output side of the double rocker arm device 2300.
[0084] Among them, the upper roller ring 2302 and the lower roller ring 2303 are grooved wheels with an "H" shaped cross section, and anti-slip texture is provided on the groove surface.
[0085] A toolbox 2600 is also fixedly installed on the chassis 2001. The toolbox 2600 is arranged side by side with the motor 2100. The toolbox 2600 contains mechanical repair tools such as wrenches and screwdrivers.
[0086] Example 2
[0087] Reference Figures 1-10The rapid laying method for bundled tubes in coal mine goaf areas utilizes a rapid laying device for bundled tubes in coal mine goaf areas as described in Example 1. The specific construction process is as follows:
[0088] Step 1: Fabricate the wiring harness on the ground for laying within the testing pipeline:
[0089] Several detection points are set inside the detection pipeline, and the distance between each detection point is L;
[0090] The testing pipeline includes several testing pipes 4100 (the testing pipes 4100 are 2-inch pipes), several tees 4300, several flanges 4200, and several connecting bolts 4500. A tee 4300 is installed between two adjacent testing pipes 4100 through flanges 4200 and connecting bolts 4500. A tee 4300 is also installed on the front face of the foremost testing pipe 4100 through flanges 4200 and connecting bolts 4500. The number of tees 4300 is the same as the number of testing points and corresponds to the position of the testing points.
[0091] The pipeline bundle 3000 is manufactured according to the required locations and number of detection points within the detection pipeline. The pipeline bundle 3000 comprises several groups of individual pipeline bundle units of different lengths, with the number of individual unit numbers matching the number of detection points. Figure 8 As shown, each group of pipeline bundle units includes a bundle tube 3001, a temperature sensing lead 3002, and a temperature sensor 3003. The ends of the bundle tube 3001 and the temperature sensing lead 3002 are aligned and placed parallel to each other. The front end of the temperature sensing lead 3002 is recessed by a distance L5 from the front end of the bundle tube 3001 to facilitate the installation of the temperature sensor 3003. The temperature sensor 3003 is installed at the front end of the temperature sensing lead 3002. After aligning the ends of each group of pipeline bundle units, the temperature sensor 3003 is installed along the length direction of each group of pipeline bundle units. The ends are bound together with glass tape 5000 to form a cable bundle 3000. Within each cable bundle unit, a non-binding section of length L1 is provided from the front end of the bundle tube 3001 backwards. In this non-binding section, the bundle tube 3001 and the temperature sensing wire 3002 are not bound together with glass tape 5000. Simultaneously, a binding section of length L2 is provided at the end of each cable bundle unit for binding with the guide tube 2406. The length difference between adjacent cable bundle units is L.
[0092] Step 2, Connecting the underground detection pipeline: Connect the detection pipeline in the roadway of the underground coal mining face. The end of the detection pipeline with a 4300 tee is close to the goaf, and the other end is away from the goaf.
[0093] Step 3: Inspect the installation of the 2406 threaded conduit within the pipeline:
[0094] The prefabricated pipeline bundle 3000 and the rapid laying device for bundled pipes in the goaf of the coal mine are lowered into the roadway of the coal mining face. The working unit is transported to the end of the detection pipeline (i.e., the detection pipeline is located at the end away from the goaf) by the moving unit. Then, the working unit is removed from the moving unit and placed next to the detection pipeline by the handle 2002. The working unit is checked to ensure that it is in the initial state. At this time, the transmission gear 2500 of the transmission wheel mechanism, the drive gear 2104 on the motor 2100, and the linkage gear 2404 in the roller mechanism are in a separated state.
[0095] like Figure 6 As shown, the detection tube 4100 at the very end of the detection pipeline is connected to the chassis 2001 via flange 4200 and connecting bolt 4500 (during connection, the bottom hole of flange 4200 on detection tube 4100 is connected to connecting hole 2004 on chassis 2001) to prevent the pipeline or working unit from moving and increasing pushing resistance when the working unit pushes the guide tube 2406 into the detection pipeline. After the connection is completed, the forward rotation air duct interface 2101 on motor 2100 is connected to the air supply pipeline in the roadway via the air duct. At this time, the front end of the guide tube 2406 on roller 2400 is manually passed through the inverted U-shaped guide buckle 2003, the upper roller ring 2302 and the lower roller ring 2303, the guide tube 2304 and sent into the detection tube 4100 connected to chassis 2001.
[0096] When the proportional pneumatic pressing device 2301 is activated, the upper roller ring 2302 and the lower roller ring 2303 clamp the threading tube 2406. The motor 2100 is started to rotate forward, and the power is transmitted to the double rocker arm device 2300 through the reducer 2200. The upper roller ring 2302 and the lower roller ring 2303 of the double rocker arm device 2300 drive the conveying of the threading tube 2406 by rotation. At this time, the roller 2400 rotates forward as the threading tube 2406 is conveyed, so as to realize the continuous conveying of the threading tube 2406 in the detection pipeline.
[0097] Step 4, as follows Figure 7 As shown, adjust the positions of the motor 2100 and the drum 2400 so that the transmission gear 2500 of the transmission wheel mechanism is engaged with the driving gear 2104 on the motor 2100 and the linkage gear 2404 in the drum mechanism, and reconnect the guide tube 2406 to the drum 2400:
[0098] After the guide tube 2406 delivers the material to the desired position, the output shaft of the motor 2100 is adjusted to the retracted state, causing the drive gear 2104 on the motor 2100 to mesh with the transmission gear 2500 in the transmission wheel mechanism. Simultaneously, the position of the roller support connecting beam 2407 of the roller mechanism is moved, causing the linkage gear 2404 to mesh with the transmission gear 2500. Then, the roller support connecting beam 2407 is fixed to the chassis 2001. At this point, the transmission gear 2500 of the transmission wheel mechanism, the drive gear 2104 on the motor 2100, and the linkage gear 2404 in the roller mechanism are in a meshed state.
[0099] Then, the end of the threading tube 2406 is removed from the fixing hole 2405 and gradually withdrawn from between the inverted U-shaped guide buckle 2003, the upper roller ring 2302 and the lower roller ring 2303, and the guide tube 2304. Then, the end of the threading tube 2406 is fixed again in the fixing hole 2405 on the roller 2400, so that the threading tube 2406 is freed from the constraints of the guide tube 2304, the upper roller ring 2302, the lower roller ring 2303 and the inverted U-shaped guide buckle 2003, and the threading tube 2406 is wound up and wrapped around the roller 2400.
[0100] Step 5: Connect the binding section of the fabricated cable bundle 3000 to the front end of the through-tube 2406 located in the test pipeline using glass tape or a wear-resistant and tough thin wire.
[0101] Step 6: Retrieve the threaded conduit 2406, and lay the cable harness 3000 in the testing pipeline:
[0102] Connect the reverse air duct interface 2102 on the motor 2100 to the air supply pipeline in the tunnel through the air duct. Then start the motor 2100 and reverse the motor 2100. At this time, through the transmission of the drive gear 2104, the transmission gear 2500 and the linkage gear 2404, the drum 2400 reverses. The threading tube 2406 is wound on the outer circumference of the drum 2400. As the drum 2400 rotates continuously, the threading tube 2406 will pull the cable harness 3000 into the detection pipeline until the cable harness 3000 is laid in the detection pipeline. Then turn off the motor 2100 and stop the retrieval of the threading tube 2406.
[0103] Step 7, Refer to Figure 10 After the threaded tube 2406 is recovered, each bundle tube 3001 and temperature measuring wire 3002 in the pipeline bundle 3000 is found one by one through each tee 4300. Then, a perforated tube 4400 is installed on each tee 4300 (the perforated tube 4400 is installed at the top of the vertical tube of the tee 4300 through the flange 4200 and the connecting bolt 4500), and each bundle tube 3001 and each temperature sensor 3003 are fixed in each perforated tube 4400 respectively.
[0104] Step 8: Check whether each bundle tube 3001 is transparent and check the initial resistance of each temperature sensor 3003: Use a portable negative pressure extractor to check the transparency of each bundle tube again to avoid the bundle tube being blocked and affecting the subsequent gas composition detection; at the same time, use a multimeter to measure and record the initial resistance value of each temperature sensor.
[0105] Step 9: Transfer or recover the rapid laying device for bundled pipes in the goaf of the coal mine:
[0106] The connection between the working unit and the detection pipeline and the air supply pipeline is disconnected. The working unit is then lifted onto the mobile unit for transfer or retrieval. As the coal face advances, the gas entering each detection point in the goaf is monitored daily. Resistance values are obtained through temperature sensors, and gas is collected through bundled tubes. By calculating temperature changes and monitoring gas composition, the extent of the three spontaneous combustion zones within the goaf is determined.
[0107] Example 3
[0108] Reference Figures 1-13 The rapid laying method for bundled tubes in coal mine goaf areas utilizes a rapid laying device for bundled tubes in coal mine goaf areas as described in Example 1. The specific construction process is as follows:
[0109] Step 1: Fabricate a 3000mm cable bundle on the ground for laying within the testing pipeline.
[0110] Three detection points are set up in the detection pipeline, and the distance between each detection point is L, where L = 20m;
[0111] The testing pipeline includes three testing pipes 4100 (the testing pipes 4100 are two-inch pipes), three tees 4300, several flanges 4200, and several connecting bolts 4500. A tee 4300 is installed between two adjacent testing pipes 4100 through flanges 4200 and connecting bolts 4500. A tee 4300 is also installed on the front face of the foremost testing pipe 4100 through flanges 4200 and connecting bolts 4500.
[0112] Therefore, in the testing pipeline, the distance between adjacent tee 4300 is 20m, and the distance between the last tee 4300 in the testing pipeline and the end of the testing pipeline is 20m (calculated based on the centerline of the vertical pipe of the tee 4300).
[0113] In this embodiment, the distance from the center of the vertical pipe of the tee 4300 to both ends of the horizontal branch pipe is L3, and the sum of the vertical pipe lengths of the perforated pipe 4400 and the tee 4300 is L4.
[0114] Specifically, the length of L3 is 0.1m-0.2m, and the length of L4 is 0.3m-0.5m.
[0115] A pipeline bundle 3000 is manufactured according to the required locations and number of detection points within the detection pipeline. The pipeline bundle 3000 comprises several groups of individual pipeline bundle units of different lengths, with the number of individual unit numbers matching the number of detection points. Figure 8 As shown, each group of pipeline bundle units includes a bundle tube 3001, a temperature sensing lead 3002, and a temperature sensor 3003. The ends of the bundle tube 3001 and the temperature sensing lead 3002 are aligned and placed parallel to each other. The front end of the temperature sensing lead 3002 is recessed by a distance L5 from the front end of the bundle tube 3001. The temperature sensor 3003 is installed at the front end of the temperature sensing lead 3002. After aligning the ends of each group of pipeline bundle units, the temperature sensor 3003 is applied along the length direction of each group of pipeline bundle units from the end to the front end. Glass tape 5000 is used to bind and fix the components together to form a cable bundle 3000. Within each cable bundle unit, a non-binding section of length L1 is provided from the front end of the cable tube 3001 backwards. In this non-binding section, glass tape 5000 is not used to bind and fix the cable tube 3001 and the temperature sensing wire 3002. Simultaneously, a binding section of length L2 is provided at the end of each cable bundle unit for binding with the guide tube 2406. The length difference between adjacent cable bundle units is L.
[0116] Reference Figure 9 In this embodiment, the wiring harness 3000 includes three sets of individual wiring harness units, as shown in the reference. Figure 9 (a) The first group of pipeline bundle units includes a first bundle tube 3100, a first temperature measuring wire 3200 and a first temperature sensor 3300. The length of the first bundle tube 3100 in the first group of pipeline bundle units is L2+L+L1 and the length of the first temperature measuring wire 3200 is L2+L+L1-L5.
[0117] Reference Figure 9 (b) The second group of pipeline harness units includes a second bundle tube 3400, a second temperature measuring wire 3500 and a second temperature sensor 3600. The length of the second bundle tube 3400 in the second group of pipeline harness units is L2+2L+L1 and the length of the second temperature measuring wire 3500 is L2+2L+L1-L5.
[0118] Reference Figure 9 (c) The third group of pipeline bundle units includes a third bundle tube 3700, a third temperature measuring wire 3800 and a third temperature sensor 3900. The length of the third bundle tube 3700 in the third group of pipeline bundle units is L2+3L+L1 and the length of the third temperature measuring wire 3800 is L2+3L+L1-L5.
[0119] After aligning the ends of the first group of individual cable harness units, the second group of cable harness units, and the third group of cable harness units, they are bound together along the length direction from the ends to the front using 5000 mm glass tape to form cable harness 3000; refer to Figure 11This is a cross-sectional diagram showing the first group of wiring harness units, the second group of wiring harness units, and the third group of wiring harness units bound together with 5000 gluing glass tape; refer to... Figure 12 This is a cross-sectional diagram showing the second and third wire harness units bound together with 5000 gluing glass tape; refer to... Figure 13 This is a cross-sectional diagram of the third group of wire harness units, which is fixed by wrapping with 5000 gluing glass tape.
[0120] In this embodiment, the bundle tube 3001 is a hollow tubular shape and uses a mining-grade bundle tube with a diameter of 8mm. The temperature sensing wire 3002 is a double-wire wire, and the temperature sensor 3003 is a PT100 temperature sensor. The bundle tubes 3001 and temperature sensing wires 3002 in each group of tubular bundle units are different colors for easy differentiation.
[0121] L1=0.3m-0.5m, L2=0.5m-2.5m, L5=0.1m-0.2m;
[0122] Step 2, Connecting the underground detection pipeline: Connect the detection pipeline in the roadway of the underground coal mining face. The end of the detection pipeline with a 4300 tee is close to the goaf, and the other end is away from the goaf.
[0123] Step 3: Inspect the installation of the 2406 threaded conduit within the pipeline:
[0124] The prefabricated pipeline bundle 3000 and the rapid laying device for bundled pipes in the goaf of the coal mine are lowered into the roadway of the coal mining face. The working unit is transported to the end of the detection pipeline (i.e., the detection pipeline is located at the end away from the goaf) by the moving unit. Then, the working unit is removed from the moving unit and placed next to the detection pipeline by the handle 2002. The working unit is checked to ensure that it is in the initial state. At this time, the transmission gear 2500 of the transmission wheel mechanism, the drive gear 2104 on the motor 2100, and the linkage gear 2404 in the roller mechanism are in a separated state.
[0125] The detection tube 4100 at the very end of the detection pipeline is connected to the chassis 2001 via flange 4200 and connecting bolt 4500 (during connection, the bottom hole of flange 4200 on detection tube 4100 is connected to connecting hole 2004 on chassis 2001) to prevent the pipeline or working unit from moving and increasing pushing resistance when pushing the guide tube 2406 into the detection pipeline. After the connection is completed, the forward rotation air duct interface 2101 on motor 2100 is connected to the air supply pipeline in the roadway via the air duct. At this time, the front end of the guide tube 2406 on roller 2400 is manually passed through the inverted U-shaped guide buckle 2003, the upper roller ring 2302 and the lower roller ring 2303, the guide tube 2304 and sent into the detection tube 4100 connected to chassis 2001.
[0126] When the proportional pneumatic pressing device 2301 is activated, the upper roller ring 2302 and the lower roller ring 2303 clamp the threading tube 2406. The motor 2100 is started to rotate forward, and the power is transmitted to the double rocker arm device 2300 through the reducer 2200. The upper roller ring 2302 and the lower roller ring 2303 of the double rocker arm device 2300 drive the conveying of the threading tube 2406 by rotation (the pushing speed of the double rocker arm device 2300 is set to 1m / min-4m / min). At this time, the roller 2400 rotates forward along with the conveying of the threading tube 2406, realizing the continuous conveying of the threading tube 2406 in the detection pipeline.
[0127] Step 4: Adjust the positions of the motor 2100 and the drum 2400 so that the transmission gear 2500 of the transmission wheel mechanism is engaged with the driving gear 2104 on the motor 2100 and the linkage gear 2404 in the drum mechanism, and reconnect the guide tube 2406 to the drum 2400.
[0128] After the guide tube 2406 delivers the material to the desired position, the output shaft of the motor 2100 is adjusted to the retracted state, causing the drive gear 2104 on the motor 2100 to mesh with the transmission gear 2500 in the transmission wheel mechanism. Simultaneously, the position of the roller support connecting beam 2407 of the roller mechanism is moved, causing the linkage gear 2404 to mesh with the transmission gear 2500. Then, the roller support connecting beam 2407 is fixed to the chassis 2001. At this point, the transmission gear 2500 of the transmission wheel mechanism, the drive gear 2104 on the motor 2100, and the linkage gear 2404 in the roller mechanism are in a meshed state.
[0129] Then, the end of the threading tube 2406 is removed from the fixing hole 2405 and gradually withdrawn from between the inverted U-shaped guide buckle 2003, the upper roller ring 2302 and the lower roller ring 2303, and the guide tube 2304. Then, the end of the threading tube 2406 is fixed again in the fixing hole 2405 on the roller 2400, so that the threading tube 2406 is freed from the constraints of the guide tube 2304, the upper roller ring 2302, the lower roller ring 2303 and the inverted U-shaped guide buckle 2003. During the winding process, the threading tube 2406 is wound around the roller 2400.
[0130] Step 5: Connect the binding section of the fabricated cable bundle 3000 to the front end of the through-tube 2406 located in the test pipeline using glass tape 5000 or a wear-resistant and tough thin wire.
[0131] Step 6: Retrieve the threaded conduit 2406, and lay the cable harness 3000 in the testing pipeline:
[0132] Connect the reverse air duct interface 2102 on the motor 2100 to the air supply pipeline in the tunnel through the air duct. Then start the motor 2100 and reverse the motor 2100. At this time, through the transmission of the drive gear 2104, the transmission gear 2500 and the linkage gear 2404, the drum 2400 reverses. The threading tube 2406 is wound on the outer circumference of the drum 2400. As the drum 2400 rotates continuously, the threading tube 2406 will pull the cable harness 3000 into the detection pipeline until the cable harness 3000 is laid in the detection pipeline. Then turn off the motor 2100 and stop the retrieval of the threading tube 2406.
[0133] Step 7, Refer to Figure 10 After the threaded tube 2406 is retrieved, the first bundle tube 3100, the first temperature measuring wire 3200, the second bundle tube 3400, the second temperature measuring wire 3500, the third bundle tube 3700, and the third temperature measuring wire 3800 in the pipeline bundle 3000 are located one by one through each tee 4300. Then, the perforated tube 4400 is installed on each tee 4300 (the perforated tube 4400 is installed at the top of the vertical tube of the tee 4300 through the flange 4200 and the connecting bolt 4500). The first temperature sensor 3300 on the first bundle tube 3100 and the first temperature measuring wire 3200, the second temperature sensor 3600 on the second bundle tube 3400 and the second temperature measuring wire 3500, and the third temperature sensor 3900 on the third bundle tube 3700 and the third temperature measuring wire 3800 are respectively fixed in the corresponding perforated tube 4400.
[0134] Step 8: Check whether the first bundle tube 3100, the second bundle tube 3400, and the third bundle tube 3700 are transparent, and check the initial resistance of the first temperature sensor 3300, the second temperature sensor 3600, and the third temperature sensor 3900.
[0135] The permeability of the first bundle tube 3100, the second bundle tube 3400 and the third bundle tube 3700 was checked again using a portable negative pressure extractor to avoid the bundle tube blockage affecting the subsequent gas composition detection; at the same time, the initial resistance values of the first temperature sensor 3300, the second temperature sensor 3600 and the third temperature sensor 3900 were measured and recorded using a multimeter.
[0136] Step 9: Transfer or recover the rapid laying device for bundled pipes in the goaf of the coal mine:
[0137] The connection between the working unit and the detection pipeline and the air supply pipeline is disconnected. The working unit is then lifted onto the mobile unit for transfer or retrieval. As the coal face advances, the gas entering each detection point in the goaf is monitored daily. Resistance values are obtained through temperature sensors, and gas is collected through bundled tubes. By calculating temperature changes and monitoring gas composition, the extent of the three spontaneous combustion zones within the goaf is determined.
[0138] The above content is only a preferred embodiment of the present invention. For those skilled in the art, many changes can be made in the specific implementation and application scope based on the concept of the present invention. As long as these changes do not depart from the concept of the present invention, they all fall within the protection scope of the present invention.
Claims
1. A rapid laying device for bundled pipes in coal mine goaf areas, characterized in that: It includes a moving unit and a working unit; the working unit is placed on the moving unit and moves through the moving unit. The working unit includes a chassis, a motor, a drive gear, a reducer, a double rocker arm device, an upper roller ring, a lower roller ring, a roller mechanism, and a transmission wheel mechanism. The output shaft of the motor is connected to the reducer via a coupling. The output shaft of the motor is telescopic and is equipped with a drive gear. When the output shaft of the motor is extended, the drive gear on the motor is placed in the coupling. When the output shaft of the motor is retracted, the drive gear on the motor is disengaged from the coupling. The output shaft of the reducer is connected to the double rocker arm device. The two output ends of the double rocker arm device are respectively equipped with an upper roller ring and a lower roller ring. The double rocker arm device is also equipped with a proportional pneumatic pressing device. The roller mechanism includes a roller, a roller bearing, a roller support, a rotating shaft, a linkage gear, a fixing hole, a guide tube, a roller support connecting beam, and fixing bolts; the bottom end of the roller support is fixed to the roller support connecting beam, the roller support connecting beam is movably and detachably mounted on the chassis and located on one side of the double rocker arm device by fixing bolts, the top end of the roller support is rotatably connected to the roller by a rotating shaft and a roller bearing, a linkage gear is installed at the end of the rotating shaft, and a fixing hole is provided on the roller; The transmission wheel mechanism includes a transmission gear, a transmission gear bearing, and a transmission gear support. The transmission gear support is fixed on the chassis and located next to the motor. The upper end of the transmission gear support is connected to the transmission gear through the transmission gear bearing and the transmission gear shaft. When the working unit is in its initial state, the motor's output shaft is extended, and the driving gear on the motor and the linkage gear in the roller mechanism are separated from the transmission gear in the transmission wheel mechanism. The end of the threading tube passes through the fixing hole and is fixed to the roller, and the threading tube is wound up on the outer circumference of the roller. When the threading tube is being conveyed, the front end of the threading tube passes between the upper and lower roller rings. The proportional pneumatic pressing device is activated, and the upper and lower roller rings clamp the threading tube. The motor is started and rotated forward, and the power is transmitted to the double rocker arm device through the reducer. The upper and lower roller rings of the double rocker arm device drive the conveying of the threading tube by rotation. When the threading tube is retracted, the motor's output shaft is in the retracted state, and the motor's drive gear meshes with the transmission gear in the transmission wheel mechanism. At the same time, the position of the roller support connecting beam of the moving roller mechanism is adjusted so that the linkage gear meshes with the transmission gear. Then, the roller support connecting beam is fixed to the chassis. At this time, the transmission gear of the transmission wheel mechanism is meshed with the drive gear on the motor and the linkage gear in the roller mechanism. The end of the threading tube is taken out from the fixing hole and from the upper and lower roller rings, and then passed through the fixing hole again to fix the end of the threading tube to the roller. The motor is started and reversed. Through the transmission of the drive gear, transmission gear, and linkage gear, the roller reverses and winds the threading tube onto the outer circumference of the roller. A guide tube is installed at the front end of the dual rocker arm device; An inverted U-shaped guide buckle is installed above the chassis and between the roller mechanism and the double rocker arm device.
2. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, The mobile unit includes a handrail, a crossbeam, a base, and wheels. The base is a flat plate structure, and a handrail is installed on one side of the upper surface of the base. The handrail is an inverted U-shaped tube. The crossbeam is assembled in the middle of the handrail, and multiple wheels are assembled at the bottom of the base.
3. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, Handles are symmetrically installed at the middle position of the upper surface of the chassis.
4. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, The chassis is made of resin material.
5. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, The motor is a pneumatic motor, and it is equipped with a forward rotation air duct interface and a reverse rotation air duct interface, which are respectively connected to the air supply duct.
6. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, After the front end of the threading tube passes through the upper roller ring and the lower roller ring, it passes through the guide tube, which limits the movement of the threading tube.
7. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, The front end of the insertion tube is conical, with a diameter of 12mm-18mm and a wall thickness of 2mm-3mm. The insertion tube has length markings.
8. The rapid laying device for bundled pipes in coal mine goaf as described in claim 1, characterized in that, The side end face of the chassis is provided with connection holes for installing detection pipelines.
9. A method for rapid laying of bundled tubes in coal mine goaf areas, using the rapid laying device for bundled tubes in coal mine goaf areas as described in any one of claims 1-8, and the specific construction process is as follows: Step 1: Fabricate the wiring harness on the ground for laying within the testing pipeline: Several detection points are set inside the detection pipeline, and the distance between each detection point is L; The testing pipeline includes several testing pipes, several tees, several flanges, and several connecting bolts. A tee is installed between two adjacent testing pipes through flanges and connecting bolts. A tee is also installed on the front face of the foremost testing pipe through flanges and connecting bolts. The number of tees is the same as the number of testing points and corresponds to the position of the testing points. A tubing bundle is fabricated according to the required locations and number of detection points within the testing pipeline. The tubing bundle comprises several groups of individual tubing units of varying lengths, with the number of individual units matching the number of detection points. Each group of individual tubing units includes a tubular bundle, a temperature-sensing lead, and a temperature sensor. The ends of the tubular bundle and the temperature-sensing lead are aligned and placed parallel to each other. The front end of the temperature-sensing lead is recessed from the front end of the tubular bundle by a distance L5. A temperature sensor is installed at the front end of the temperature-sensing lead. After aligning the ends of each group of individual tubing units, they are bound together along the length of each individual unit from end to front using glass tape to form the tubing bundle. In each group of cable bundle units, there is a non-binding section of length L1 from the front end of the cable bundle to the rear. In this non-binding section, the cable bundle and the temperature measuring wire are not bound and fixed with glass tape. At the same time, there is a binding section of length L2 at the end of each group of cable bundle units for binding with the guide tube. The length difference between two adjacent groups of cable bundle units is L. Step 2: Connecting the downhole inspection pipeline: In the underground coal mining face roadway, connect each detection pipe, tee, and flange in the detection pipeline. The end of the detection pipeline with the tee is close to the goaf, and the other end is far away from the goaf. Step 3: Inspect the installation of the guide pipe within the pipeline: The pre-fabricated pipeline bundle and the rapid laying device for bundled pipes in the goaf of the coal mine are lowered together into the roadway of the coal mining face. The working unit is transported to the end of the detection pipeline by the moving unit. Then, the working unit is removed from the moving unit and placed next to the detection pipeline using the handle. The output shaft of the motor is in the extended state and separated from the transmission gear in the transmission wheel mechanism. At the same time, the position of the roller support connecting beam is moved away from the toolbox, so that the linkage gear is separated from the transmission gear. Then, the roller support connecting beam is fixed to the chassis. At this time, the transmission gear of the transmission wheel mechanism is separated from the drive gear on the motor and the linkage gear in the roller mechanism. Connect the last detection tube in the detection pipeline to the connection hole on the chassis using a flange and connecting bolts. This prevents the pipeline or working unit from moving and increasing the pushing resistance when the working unit pushes the guide tube into the detection pipeline. After the connection is completed, connect the forward rotation air duct interface on the motor to the air supply pipeline in the roadway through the air duct. Then, manually pass the front end of the guide tube on the roller through the inverted U-shaped guide buckle, between the upper and lower roller rings, and the guide tube in sequence, and send it into the detection tube connected to the chassis. Press the proportional pneumatic pressing device to activate, the upper and lower roller rings clamp the threading tube, start the motor to make the motor rotate forward, and transmit the power to the double rocker arm device through the reducer. The upper and lower roller rings of the double rocker arm device drive the conveying of the threading tube by rotating. At this time, the roller rotates forward along with the conveying of the threading tube, realizing the continuous conveying of the threading tube in the detection pipeline. Step 4: After the guide tube is in place, adjust the motor output shaft to the retracted state so that the drive gear on the motor meshes with the transmission gear of the transmission wheel mechanism. At the same time, move the position of the roller support connecting beam so that the linkage gear in the roller mechanism meshes with the transmission gear. Then fix the roller support connecting beam to the chassis. Then remove the end of the threading tube from the fixing hole and gradually pull it out from between the inverted U-shaped guide buckle, the upper roller ring and the lower roller ring, and the guide tube. Then fix the end of the threading tube back into the fixing hole on the roller, so that the threading tube is freed from the constraints of the guide tube, the upper roller ring, the lower roller ring and the inverted U-shaped guide buckle. Step 5: Connect the binding section of the fabricated cable bundle to the front end of the guide tube located in the testing pipeline; Step Six: Retrieve the lead-in conduit and lay the conduit bundle in the testing pipeline: Connect the reverse air duct interface on the motor to the air supply pipeline in the tunnel through the air duct, then start the motor and reverse the motor. At this time, through the transmission of the drive gear, transmission gear and linkage gear, the drum reverses and the threading tube is wound up on the outer circumference of the drum. As the drum rotates continuously, the threading tube will pull the pipeline into the detection pipeline until the pipeline is laid in the detection pipeline. Then, turn off the motor and stop the retrieval of the threading tube. Step 7: After the lead-in tubes are retrieved, locate each bundle of tubes and temperature measuring wires in the pipeline bundle one by one through each tee. Then install the perforated tubes on each tee and fix each bundle of tubes and each temperature sensor in the perforated tube respectively. Step 8: Check whether each bundle tube is transparent and check the initial resistance of each temperature sensor; Step 9: Transfer or retrieve the rapid laying device for bundled pipes in the goaf of the coal mine: disconnect the working unit from the detection pipeline and the air supply pipeline, lift the working unit onto the mobile unit and then transfer or retrieve it.
Citation Information
Patent Citations
Mobile cable winding equipment for coal mine monitoring
CN114426231A
Mining hydraulic-power continuous hole forming operation device
CN203022628U