Mining bed separation measurement and display device and measurement method

Abstract

The invention belongs to the technical field of mine laneway separation layer monitoring, and particularly discloses a mining separation layer measuring and displaying device and a measuring method.The mining separation layer measuring and displaying device comprises a measuring anchor head, a walking rope, a fixing pipe, a structure cavity and an electric appliance cavity, and the measuring anchor head is used for being inserted into a mining separation layer to-be-measured point; a sliding shuttle is movably mounted in the fixed pipe and is connected with the measuring anchor head through a walking rope; the structural cavity is connected with the fixed pipe, and a mechanical display mechanism in the structural cavity is connected with the sliding shuttle through a working cable and used for converting displacement generated when the measuring anchor head drives the sliding shuttle to move into mechanical display; the electric appliance cavity is connected with the structure cavity, and a detection end of a digital display mechanism in the electric appliance cavity is inserted into the structure cavity and is used for converting a displacement signal generated when the measuring anchor head drives the working cable into an electric signal and performing digital display. The mine laneway separation layer display device has the digital display function and the mechanical display function at the same time, is high in reliability, reasonable in structural layout and easy to install and display the mine laneway separation layer condition.

Description

Technical Field

[0001] The invention relates to the technical field of mine tunnel separation monitoring, and in particular to a mine separation measurement and display device and a measurement method. Background Art

[0002] The mine tunnel roof separation monitoring device is mainly used for coal mine tunnel roof and surrounding rock deep loosening and separation monitoring, and can also be used for other similar structures of culverts, civil air defense projects roof collapse risk monitoring. The tunnel roof separation monitoring device is used for mining or excavation tunnel roof separation monitoring, mainly monitoring the loosening and separation of tunnel surrounding rock and roof, and realizing real-time continuous monitoring. It can dynamically grasp the roof movement process, correctly evaluate the stability or local damage of surrounding rock and support equipment, and provide early warning and instant display of possible roof accidents. In the tunnel, the roof sinking amount, the top and bottom plate movement amount, the roof displacement position, and the separation speed change are mainly monitored and displayed to determine the scope of roof damage, identify the stability of the tunnel, and evaluate the safety level of the tunnel.

[0003] Common roof separation monitoring devices are divided into injection molding and stainless steel structures.

[0004] Injection molding monitoring devices often only have digital display, or only mechanical display, or lack direct display function, and display by transmitting electrical signals to monitoring substations. The measurement action is mainly through the measurement anchor head pulling the spring, and then the spring drives the potentiometer to rotate to form an electrical signal, and the monitoring and alarm functions are realized through the transmission of electrical signals. This monitoring device has the following defects:

[0005] (1) The installation is complicated, the spring is not easy to install, and it is easy to break and fail;

[0006] (2) Since there is a certain gap in the spring disk, the displacement response will be delayed;

[0007] (3) Since the monitoring substation is the final display device, the signal processing link will be long and the response will be slow.

[0008] Stainless steel monitoring devices often only have digital displays or monitoring substation displays. The wire rope is pulled by the measuring anchor head, and the wire rope drives the potentiometer to rotate to form an electrical signal. The monitoring and alarm functions are also achieved through the transmission of electrical signals. This monitoring device has the following defects:

[0009] (1) Complex structure. The monitoring mechanism, display mechanism and other structures are complex and difficult to process;

[0010] (2) Poor reliability. In actual use, the wire rope is prone to knotting and tightening, causing equipment failure;

[0011] (3) Unable to be disassembled. After installation, it cannot be disassembled, or only a small part can be disassembled;

[0012] (4) Structural jamming. During use, the internal rotating mechanism is prone to friction jamming and is not smooth. Summary of the invention

[0013] In order to solve the deficiencies in the prior art, the present invention provides a mine separation measurement and display device and a measurement method, which have both digital display and mechanical display functions, so that the reliability is strong, and the structure is reasonable, easy to install and display the separation of mine tunnels. The present invention adopts the following technical solutions.

[0014] In the first aspect, the present invention provides a mine separation measurement and display device, comprising: a measuring anchor head and a rope, the measuring anchor head is used to insert into the mine separation measurement point, the mine separation measurement and display device also includes: a fixed tube, inside which a shuttle is movably installed, the shuttle is connected to the measuring anchor head through the rope; a structural cavity, connected to the fixed tube, the interior of the structural cavity is provided with a mechanical display mechanism, the mechanical display mechanism is connected to the shuttle through a working cable, and is used to convert the displacement generated when the measuring anchor head drives the shuttle to move into a mechanical display; an electrical cavity, connected to the structural cavity, the electrical cavity is provided with a digital display mechanism, the detection end of the digital display mechanism is inserted into the interior of the structural cavity, and is used to convert the displacement signal generated by the measuring anchor head driving the working cable into an electrical signal, and display it digitally.

[0015] Preferably, the mechanical display mechanism comprises: a tape measure and a tape measure wheel for winding the tape measure; the tape measure wheel is arranged inside the structural cavity and is coaxially connected to a measuring wheel arranged inside the structural cavity for winding a working cable; the outer shell of the structural cavity is also provided with a third notch for the measuring end of the tape measure to pass through.

[0016] Preferably, the tape measure wheel includes a circular ring and a boss; a second notch is provided on the side wall of the circular ring, and a baffle is provided on one side of the boss and close to the second notch, for limiting and fixing the measuring end of the tape measure when the measuring end passes through the second notch.

[0017] Preferably, three protrusions are evenly spaced inside the tape measure wheel for hand-tightening to apply a pre-tightening force, and each protrusion is fixedly connected to the ring and the boss at the same time.

[0018] Preferably, a narrow head is provided on the side of the measuring wheel close to the tape measure wheel, and the narrow head passes through the tape measure wheel for installing a rubber sleeve; a through hole is provided on the structural cavity cover of the structural cavity corresponding to the position of the rubber sleeve, and the through hole is used for the detection end of the digital display mechanism to be inserted into the structural cavity and connected to the rubber sleeve.

[0019] Preferably, the digital display mechanism includes: a digital display screen and a potentiometer; the digital display screen is arranged on a circuit board, the circuit board is arranged inside the electrical cavity, and the electrical cavity shell of the electrical cavity is provided with a display window; the potentiometer is arranged inside the electrical cavity, and its detection end passes through the electrical cavity shell and is inserted into the through hole of the structural cavity, and is connected to the rubber sleeve, and is used to convert the rotation signal of the measuring wheel into an electrical signal for digitally displaying the delamination change.

[0020] Preferably, the outer ring of the measuring wheel is provided with a plurality of wire holes arranged in parallel along its axial direction for inserting and limiting the end of the working cable; the internal space of the measuring wheel is used for storing the clockwork spring, and a spring slot is provided on the inner side of the measuring wheel for locking the spring head of the clockwork spring.

[0021] Preferably, the outer shell of the structural cavity is provided with a center hole near the side wall of the measuring wheel for installing a locking wheel; one end of the locking wheel is inserted into the center hole from the outside of the outer shell and extends into the interior of the measuring wheel, and the end is provided with a spring groove for inserting and fixing the spring head of the clockwork spring; a plurality of tightening holes are provided in a circular array around the locking wheel to facilitate applying a tightening force to the clockwork spring.

[0022] Preferably, a pressure plate for limiting the tape measure wheel and the measuring wheel is also provided inside the structural cavity; the pressure plate cover is arranged outside the tape measure wheel and the measuring wheel, and the pressure plate is provided with a wire groove corresponding to the side wall of the measuring wheel, and a first notch is provided corresponding to the side wall of the tape measure wheel for the measuring end of the tape measure to extend out.

[0023] Preferably, the fixed tube comprises: a shuttle, a pipe joint, a rubber head fixing sleeve and a fixed tube body; one end of the pipe joint is connected to the fixed tube body, and the other end is detachably connected to the structural cavity; the insides of the pipe joint and the fixed tube body are both provided with a slideway for sliding with a shuttle; the shuttle is movably arranged inside the slideway inside the pipe joint, and can slide to the inside of the slideway of the fixed tube body; the rubber head fixing sleeve is arranged on the outside of the fixed tube body, and is used to be inserted into the roof of the mine tunnel to prevent the fixed tube from falling off.

[0024] Preferably, the mine separation measurement and display device further comprises: a spare wire wheel; one end of the walking rope is wound and stored in the spare wire wheel, and the other end passes through the structural cavity and the fixed pipe and is connected to the measuring anchor head.

[0025] In a second aspect, the present invention provides a method for measuring separation layer for mining, using the aforementioned separation layer measuring and display device for mining, comprising the following steps:

[0026] Insert the fixed pipe into the fixed point of the mine tunnel, and insert the measuring anchor head into the separation layer measuring point;

[0027] When separation occurs at the measuring point, the measuring anchor head drives the shuttle to slide in the fixed pipe through the rope, and drives the working cable to move through the shuttle;

[0028] The displacement of the working cable is converted into a mechanical display through a mechanical display mechanism, and the displacement of the working cable is converted into a digital display through a digital display mechanism, so that the staff can intuitively feel the mine separation situation.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can convert the movement of the measuring anchor point into the movement of the shuttle by setting a walking rope, and by setting a working cable to connect the shuttle, the present invention can obtain the delamination condition at the measuring anchor point by measuring the displacement of the working cable. Compared with the method in the prior art in which the measuring anchor point drives the clockwork spring to move, and then the clockwork spring drives the potentiometer to form an electrical signal, the structural setting of the present invention is more reasonable, the installation method is simple, and it is not easy to fail. At the same time, the present invention is provided with both mechanical display and digital display, which can improve the reliability of delamination measurement and facilitate the observation of delamination conditions in mine tunnels.

[0030] Furthermore, the present invention winds the working cable on the measuring wheel, and drives the measuring wheel to rotate the measuring tape wheel of the mechanized display mechanism, so that the measuring end of the measuring tape wound on the measuring tape wheel extends out of the structural cavity, so that the displacement of the working cable can be intuitively displayed through the extension of the measuring tape, thereby reflecting the separation of the mine tunnel. The mechanized display mechanism is not only simple in structure and high in reliability, but also easy to observe the separation of the layers.

[0031] Furthermore, the digital display mechanism of the present invention is provided with a potentiometer, the potentiometer core of the potentiometer is connected to the measuring wheel through a rubber sleeve, and the potentiometer core rotates synchronously with the rubber sleeve, so that the rotation signal of the potentiometer core can be obtained, and the rotation signal is converted into an electrical signal, and the measurement structure is displayed on the digital display screen. Compared with the method of directly connecting the potentiometer core to the working cable, the connection is more stable, the transmission effect is better, it is not easy to fail, and the response is sensitive and fast.

[0032] In addition, in order to further facilitate the adjustment of the mechanized display mechanism, the present invention also installs a tightening wheel on the structural cavity shell. By providing the tightening wheel, it is convenient to apply a pre-tightening force to the clockwork spring located inside the measuring wheel, thereby facilitating the adjustment of the position angle of the measuring wheel, and further facilitating the adjustment of the extension amount and initial position of the working cable.

[0033] In order to further facilitate the recovery of the mine separation measurement and display device, a detachable connection is adopted between the structural cavity and the electrical cavity, and between the structural cavity and the fixed pipe of the present invention, so that the device can be easily disassembled into multiple sections for recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the mining separation layer measuring and display device in the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the mining separation layer measuring and display device of the present invention after the electrical chamber is removed;

[0036] Figure 3 It is a schematic diagram of the structure of the mining separation layer measurement and display device of the present invention after the fixed pipe and the structural cavity are separated;

[0037] Figure 4 It is a schematic diagram of the structure of the mining separation layer measurement and display device of the present invention using mechanical display;

[0038] Figure 5 It is a structural schematic diagram of the digital display of the mining separation layer measurement and display device in the present invention;

[0039] Figure 6 It is a schematic diagram of the exploded structure of the structural cavity in the present invention;

[0040] Figure 7 It is a schematic diagram of the internal cross-sectional structure of the structural cavity in the present invention;

[0041] Figure 8 It is a structural schematic diagram of the pressing plate in the present invention;

[0042] Fig. 9 It is a schematic diagram of the structure of the tape measure wheel in the present invention;

[0043] Fig.10 is a schematic structural diagram of the measuring wheel of the present invention at a first angle;

[0044] Fig.11 is a schematic structural diagram of the measuring wheel in the present invention at a second angle;

[0045] Fig.12 It is a schematic diagram of the internal structure of the shell of the structural cavity in the present invention;

[0046] Fig.13 is a schematic structural diagram of the locking wheel in the present invention at a first angle;

[0047] Fig.14 is a schematic structural diagram of the locking wheel in the present invention at a second angle;

[0048] Fig.15 It is a schematic diagram of the exploded structure of the electrical chamber in the present invention;

[0049] Fig.16 It is a schematic diagram of the internal cross-sectional structure of the electrical chamber in the present invention;

[0050] Fig.17 It is a schematic diagram of the exploded structure of the fixed pipe in the present invention;

[0051] Fig.18 is a schematic diagram of the internal cross-sectional structure of the fixed tube in the present invention;

[0052] Fig.19 It is a schematic diagram of the structure of the fixed pipe, the walking rope and the working cable in the present invention when they are working.

[0053] Reference numerals in the figures:

[0054] 1. Electrical cavity; 2. Structural cavity; 3. Fixed pipe; 4. Measuring anchor head; 5. Reserve wire wheel; 6. First bolt; 7. Second bolt; 11. Structural cavity cover;

[0055] 12. Pressing plate; 121. Wire groove; 122. First notch;

[0056] 13, measuring tape wheel; 131, ring; 1311, protrusion; 1312, second notch; 132, boss; 1321, fixing groove; 1322, baffle;

[0057] 14. Rubber sleeve;

[0058] 15, measuring wheel; 151, narrow head; 152, connecting hole; 153, wire hole; 154, spring slot;

[0059] 16. housing; 161. first limiting groove; 162. third notch; 163. fourth notch; 164. second limiting groove; 165. fifth notch; 166. measuring tape area; 167. steel wire area; 168. spring area;

[0060] 17. Locking wheel; 171. Spring slot; 172. Tightening hole; 18. Bearing; 19. Working cable; 20. Rope walking;

[0061] 21. Electrical cavity cover; 22. Circuit board; 23. Potentiometer; 24. Electrical cavity housing;

[0062] 31. Shuttle; 32. Pipe joint; 33. Rubber head fixation; 34. Fixed pipe body; 341. First partition. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The embodiments described in this application are only part of the embodiments of the present invention, not all of them. Based on the spirit of the present invention, other embodiments obtained by ordinary technicians in this field without creative work are all within the scope of protection of the present invention.

[0064] like Figure 1 As shown, embodiment 1 of the present invention provides a mine separation measurement and display device, including: an electrical chamber 1, a structural chamber 2, a fixed tube 3, a measuring anchor head 4, a spare wire wheel 5 and a cable. The electrical chamber 1 and the structural chamber 2 are detachably connected by a first bolt 6. The lower end of the fixed tube 3 is detachably connected to the structural chamber 2 by a second bolt 7. The cable includes: a working cable 19 and a running rope 20. The spare wire wheel 5 is arranged below the structural chamber 2, and is used to wind and store the running rope 20. The running rope 20 wound from the spare wire wheel 5 passes through the structural chamber 2 and the fixed tube 3 and is finally connected to the measuring anchor head 4, and the running rope 20 is detachably connected to the shuttle 31 located in the fixed tube 3. One end of the working cable is wound around the measuring wheel 15 located inside the structural chamber 2, and the other end is detachably connected to the shuttle 31 in the fixed tube 3.

[0065] The measuring anchor head 4 is used to insert into the mine tunnel to be measured. The electrical cavity 1 is mainly used to install circuit boards 22, potentiometers 23, batteries, digital display screens and other devices, and the overall sealing must be guaranteed; the structural cavity 2 is used for monitoring and mechanical display, and mainly has springs, tape measure wheels, working cables and other structural parts, which do not need to be sealed, but are the most important part of the overall device. The fixed tube 3 is used to fix the device and extends into the object to be measured; the interior of the fixed tube 3 is movably installed with a shuttle 31, and the shuttle 31 is connected to the measuring anchor head 4 through a rope 20. A mechanical display mechanism is provided inside the structural cavity 2, and the mechanical display mechanism is connected to the shuttle 31 through a working cable 19, which is used to convert the displacement generated when the measuring anchor head 4 drives the shuttle 31 to move into a mechanical display; the electrical cavity 1 is provided with a digital display mechanism, and the detection end of the digital display mechanism is inserted into the interior of the structural cavity 2, which is used to convert the displacement signal generated by the measuring anchor head 4 driving the working cable 19 into an electrical signal, and digitally display it.

[0066] like Figure 6 , Figure 7 As shown, the structural cavity 2 includes: a structural cavity cover 11, a pressure plate 12, a tape measure wheel 13, a rubber sleeve 14, a measuring wheel 15 and a shell 16. The shell 16 is provided with a cavity inside and an opening on one side. The structural cavity cover 11 is the cover of the entire structural cavity 2, which covers the opening side of the shell 16 and cooperates with the shell 16 to seal the cavity and protect the various structural parts arranged inside the shell 16. The structural cavity cover 11 is provided with two steps symmetrically on the left and right sides near the shell 16 for installing the bearing 18, and the structural cavity cover 11 is provided with a through hole at the center of each step.

[0067] The tape measure and the tape measure wheel 13 constitute a mechanized display mechanism. The tape measure wheel 13 is arranged in the cavity and is used to fix the tape measure. Fig. 9As shown, the measuring tape wheel 13 includes a circular ring 131 and a boss 132, and one end of the circular ring 131 is fixedly connected to the boss 132. Three bosses 1311 are evenly arranged at equal intervals inside the measuring tape wheel 13, which are used to be manually screwed to apply a pre-tightening force, and each boss 1311 is fixedly connected to the circular ring 131 and the boss 132 at the same time. A second notch 1312 is provided on the side wall of the circular ring 131, and a baffle 1322 is provided on one side of the boss 132 and close to the second notch 1312. After the measuring tape is wound around the outer wall of the circular ring 131 of the measuring tape wheel 13, the measuring end of the measuring tape passes through the second notch 1312 and is fixed by the baffle 1322.

[0068] A center hole communicating with the inside of the ring 131 is provided at the center of the boss 132 , and at least one fixing groove 1321 is provided around the center hole. The fixing groove 1321 is used to fix the measuring tape wheel 13 to the measuring wheel 15 so that the measuring tape wheel 13 and the measuring wheel 15 rotate and work together.

[0069] The measuring wheel 15 is disposed inside the cavity and between the measuring tape wheel 13 and the inner wall of the housing 16. Fig.10 , Fig.11 As shown, the outer ring of the measuring wheel 15 is used to wind the steel wire (i.e., the working cable 19), and the outer ring of the measuring wheel 15 is provided with a plurality of steel wire holes 153 arranged in parallel along its axial direction. After the working cable is wound around the outer ring of the measuring wheel 15, one end passes through the steel wire hole 153 to the inside of the measuring wheel 15 for locking, and the other end extends into the fixed tube 3 and is detachably connected to the shuttle 31 located in the fixed tube through a screw. The internal space of the measuring wheel 15 is used to store the spring. A spring slot 154 is provided on the inner side of the measuring wheel 15. The finished spring can be placed in its entirety and then the spring band is loosened. The spring head can be hooked into the spring slot 154 for locking, which is convenient for the installation of the spring as a whole.

[0070] The center of the outer end of the measuring wheel 15 protrudes outward to form a narrow head 151, which is used to pass through the center hole of the boss 132 of the tape measure wheel 13 and extend into the step set on the structural cavity cover 11. An oblate hole connected to the inside of the measuring wheel 15 is formed inside the narrow head for installing the rubber sleeve 14. A plurality of connecting holes 152 are arranged at equal intervals around the outer end of the measuring wheel 15 and the narrow head 151. The connecting holes 152 are adapted to the fixing grooves 1321 and are used for connecting the measuring wheel 15 with the tape measure wheel 13.

[0071] like Figure 6 , Figure 7 As shown, the pressure plate 12 is disposed in the cavity of the housing 16. The pressure plate 12 is in a circular ring shape and is disposed around the outer periphery of the measuring tape wheel 13 and the measuring wheel 15 to limit the position of the measuring tape wheel 13 and the measuring wheel 15. Figure 8As shown, a wire area 167 is formed between the pressing plate 12 and the outer ring of the measuring wheel 15, a tape area 166 is formed between the pressing plate 12 and the outer ring of the tape wheel 13, and a spring area 168 is formed between the inner wall of the measuring wheel 15 and the inner bottom wall of the housing 16. A wire groove 121 is provided on the side wall of the pressing plate 12 corresponding to the wire area 167 for threading the wire, and a first notch 122 is provided on the side wall of the pressing plate 12 corresponding to the tape area 166 for exiting the tape.

[0072] The rubber sleeve 14 is used to fasten the potentiometer. The rubber sleeve 14 is inserted into the oblong hole reserved in the measuring wheel 15 from the opening of the pressure plate 12 to ensure that a certain fastening force is required for fastening.

[0073] like Fig.12 As shown, a connecting sleeve is provided at the upper end of the housing 16, and the connecting sleeve is used to connect with the fixed tube 3 through the second bolt 7. A fifth notch 165 is left at the upper end of the housing 16 for passing the working cable and the spare walking rope 20. The working cable 19 is later inserted into the shuttle 31 to form a fixed and functional use. The inner wall of the housing 16 close to the cavity is provided with a first limiting groove 161 adapted to the measuring wheel 15, and the side wall of the housing 16 is also provided with a third notch 162 at the position corresponding to the second notch 1312 of the measuring wheel 13, so that the measuring end of the measuring tape wound on the measuring wheel 13 can pass through, so that the measuring end of the measuring tape can extend from the third notch 162 to the outside of the structural cavity 2 for mechanical display. The side wall of the housing 16 is also provided with a fourth notch 163 at the position corresponding to the wire hole 153 of the measuring wheel 15, so that the wire can pass through. The inner wall of the housing 16 and the center position of the first limiting groove 161 are provided with a through hole for inserting the locking wheel 17.

[0074] like Fig.13 , Fig.14 As shown, the locking wheel 17 is inserted into the through hole of the housing 16 from the side of the housing 16 away from the structural cavity cover 11 (i.e., the back side of the housing 16), one end of the locking wheel 17 protrudes outward at the center, and a spring slot 171 is opened at its end for inserting the spring, and a plurality of hexagonal holes are arranged in a circular array on one side of the locking wheel 17 and around the spring slot 171 as tightening holes 172. After the spring is inserted, the locking wheel 17 can be rotated to stir the spring to form a pre-tightening force, and when the pre-tightening force reaches the requirement, the locking wheel 17 is fastened to the housing.

[0075] In a preferred but non-limiting embodiment of the present invention, two first limiting grooves 161 are provided on the inner wall of the shell 16 corresponding to the positions of the two measuring wheels 15, and a second limiting groove 164 for limiting the steel wire is provided on the inner wall of the shell 16 and in the middle of the two first limiting grooves 161.

[0076] The electrical cavity 1 is used to install electronic components such as digital display screens, potentiometers, circuit boards, etc., and the sealing effect needs to be ensured.

[0077] Specifically, Fig.15 , Fig.16 As shown, the electrical cavity 1 includes: an electrical cavity cover 21 , a circuit board 22 , a potentiometer 23 and an electrical cavity housing 24 .

[0078] An opening is provided on one side of the electrical cavity housing 24, and the electrical cavity cover 21 covers the opening side of the electrical cavity housing 24 to seal the electrical cavity and cover the product, and print the logo and product model on it.

[0079] The circuit board 22 is arranged inside the electrical cavity housing 24. A digital display screen is arranged on the circuit board 22 to display the displacement and has a remote control function. The electrical cavity housing 24 is provided with a display window to observe the digital display screen.

[0080] The potentiometer 23 is arranged inside the electrical cavity housing 24, and its detection end passes through the electrical cavity housing 24 and is inserted into the through hole located in the structural cavity cover 11, and is connected to the flat circular hole rubber sleeve 14 located on the measuring wheel 15. The potentiometer 23, the circuit board 22 and the digital display screen constitute a digital display mechanism. When the working cable 19 is displaced, the measuring wheel 15 will rotate following the movement of the working cable 19, thereby driving the rubber sleeve 14 to rotate synchronously with the measuring wheel 15. By connecting the detection end of the potentiometer 23 to the rubber sleeve 14, the potentiometer core rotates following the rubber sleeve 14. The potentiometer 23 collects the rotation signal of the potentiometer core and converts it into an electrical signal, which can obtain the displacement length of the working cable 19 and display it digitally on the digital display screen.

[0081] The electrical cavity housing 24 is sealed as a whole and is equipped with a buzzer, which is used to sound an alarm when the displacement of the working cable exceeds a set threshold. A battery compartment 25 is reserved on one side of the electrical cavity housing 24 for installing batteries.

[0082] like Figure 1 , Fig.17 , Fig.18 As shown, when in use, the fixed pipe 3 is inserted into the top plate of the mine tunnel as a fixed point. The fixed pipe 3 includes: a shuttle 31, a pipe joint 32, a rubber head fixing sleeve 33 and a fixed pipe body 34.

[0083] The pipe joint 32 is fixed in the upper hole of the housing 16 and is fastened by screws, and the other end is used to fix the fixed pipe body 34. The pipe joint 32 has a double-channel structure. The shuttle 31 is slidably arranged inside the pipe joint 32, and each channel in the pipe joint 32 allows a shuttle 31 to slide. The two channels are separated by a second partition, and a conical bevel is set at the end of the second partition, so that the shuttle 31 can slide smoothly to prevent jamming.

[0084] Each shuttle 31 is used to fix a working cable 19 and a running rope 20. The working cable 19 and the running rope 20 extending from the structural cavity 13 are both extended into the pipe joint 32, pass through the reserved hole of the shuttle 31, and can slide in the hole. After selecting a suitable length, the shuttle 31 is detachably connected with the shuttle 31 through screws. By tightening the screws, the shuttle 31 is fastened to the working cable 19 and the running rope 20. If the mine separation layer is displaced during use, the shuttle 31 will be pulled by the running rope, and the working cable will be displaced by the shuttle 31.

[0085] The rubber head fixing sleeve 33 is sleeved on the fixing pipe body 34, and its lower end is flush with the pipe joint 32, and has a barb-shaped structure. During use, it is used to be inserted into the top wall, and the barb-shaped structure can prevent it from falling off.

[0086] The fixed pipe body 34 is fastened to the pipe joint 32 by screws and is the main structure inserted into the top plate cavity. The interior of the fixed pipe body 34 is divided into two independent cavities by the first partition 341. The two shuttles 31 can enter the fixed pipe 34 from the inside of the pipe joint 32 and slide in their respective cavities to prevent interference.

[0087] In the non-working state, the small end of the slide shuttle 31 is close to the structural cavity shell 16, and in the working state, the lower limit is located at the step at the end of the fixed pipe body 34.

[0088] The measuring anchor head 4 is used to insert two points of the object to be measured, usually the far and near points. Therefore, in a preferred but non-restrictive embodiment of the present invention, two measuring anchor heads 4, two spare wire wheels 5, two working cables 19, and two walking ropes 20 are provided; two groups of measuring wheels 15, two measuring tape wheels 13, and two pressure plates 12 are also provided, and are symmetrically arranged inside the structural cavity 2, and are used to install two measuring tapes and two walking ropes 20 respectively. Correspondingly, two potentiometers 23 are also provided, and the two potentiometers 23 are respectively connected to the two measuring wheels 15, and the two potentiometers 23 are connected to the circuit board 22, and the digital display screen can display the detection results of the two potentiometers 23. . As Fig.19 As shown, the working cable 19 is responsible for the cable stretching in the distance measurement, one end of the working cable 19 is fixed to the shuttle 31 by a screw II, and the other end is wound around the measuring wheel 15 in the structural cavity 2. The walking rope 20 is stored in the reserve wire wheel 5, and the walking rope 20 passes through the structural cavity shell 16 and the shuttle 31, and one end passes through the measuring anchor head 4. When the walking rope 20 reaches the predetermined measuring area, the walking rope is locked by the screw I set on the shuttle 31.

[0089] In actual application, the two measuring anchors 4 are inserted into the separation layer at different depths and positions. If separation layer displacement occurs, the measuring anchor 4 with barbs will drive the rope 20 to pull the shuttle 31, and then drive the working cable 19 to stretch through the shuttle 31. After the working cable 19 is stretched, it drives the measuring wheel 15 to rotate, thereby applying a tightening force to the spring spring inside it. Figure 4 As shown, the measuring wheel 15 drives the measuring tape wheel 13 during rotation, so that the steel measuring tape wound on the measuring tape wheel 13 generates a release force, so that the measuring end of the measuring tape extends out of the structural cavity to form a mechanical display. The extension of the measuring tape can be observed by the naked eye. When the device is installed on the top of the tunnel, this display is also very intuitive. Figure 5 As shown, the rotation of the measuring wheel 15 drives the potentiometer in the electrical cavity to form an electrical signal, which is analyzed by the circuit board and finally displayed on the digital display screen of the device itself. The electrical signal can also be transmitted to the monitoring substation for alarm.

[0090] The mine separation measurement and display device provided in this embodiment can be used and disassembled according to needs after installation, and multiple disassembly and recycling methods are set. After the use state is fully set, it is called state I. The device has mechanical display, digital display and data upload functions. At this time, all parts are not recycled or disassembled. The electrical cavity can be disassembled and recycled, which is called state II. Figure 2 As shown, by removing the fastening screws of the electrical cavity and the structural cavity, the circuit board and potentiometer and other valuable components in the electrical cavity can be recycled and reused. At this time, the device still has a mechanical display function and can perform power-off monitoring. You can also choose to disassemble and recycle the electrical cavity and the structural cavity, remove the fastening screws of the fixed tube and cut the working cable, and separate the fixed tube from the structural cavity, which is called state III. Figure 3 As shown in the figure, not only the circuit board and potentiometer can be recycled, but also the tape measure and spring and other structural parts can be recycled and reused. At this time, the device no longer has the display function and is used when the monitoring point is abandoned. Segmented disassembly and recycling can be more flexible and can be flexibly used according to actual needs to minimize the cost of recycling.

[0091] During use, the mining separation measurement and display device provided by the embodiment of the present invention is subjected to the effect of tension, which acts on the measuring wheel 15, causing the measuring wheel to be deflected by force and the center line to tilt. At this time, the measuring wheel 15 and the pressure plate 12 rub against each other, resulting in a jam; at the same time, the extension function of the tape measure is also blocked. Therefore, in this embodiment, a bearing 18 is added to the structural cavity. The bearing 18 is preferably a needle bearing. The bearing 18 is arranged between the narrow head at the top of the measuring wheel 15 and the step located at the structural cavity cover 11 to achieve a simple limit and anti-bias function. When the measuring wheel 15 is deflected by force, its outer wall will be close to the needle bearing, converting the sliding friction into the rolling friction of the bearing, reducing the force, and preventing the jam.

[0092] Embodiment 2 of the present invention provides a method for measuring separation layer for mining, using the device for measuring and displaying separation layer for mining provided in embodiment 1, comprising the following steps:

[0093] Insert the fixed pipe 3 into the fixed point of the mine tunnel, and insert the measuring anchor head 4 into the separation layer measuring point;

[0094] When separation occurs at the measuring point, the measuring anchor head 4 drives the shuttle 31 to slide in the fixed pipe 3 through the rope 20, and drives the working cable 19 to move through the shuttle 31;

[0095] The displacement of the working cable 19 is converted into a mechanical display through a mechanical display mechanism, and the displacement of the working cable 19 is converted into a digital display through a digital display mechanism, so that the staff can intuitively feel the separation of the mine. The beneficial effect of the present invention is that, compared with the prior art: the present invention can convert the movement of the measuring anchor point into the movement of the shuttle by setting a walking rope, and by setting a working cable to connect the shuttle, the present invention can obtain the separation of the layer at the measuring anchor point by measuring the displacement of the working cable. Compared with the method in the prior art that the measuring anchor point drives the clockwork spring to move, and then the clockwork spring drives the potentiometer to form an electrical signal, the structural setting of the present invention is more reasonable, the installation method is simple, and it is not easy to fail. At the same time, the present invention is provided with mechanical display and digital display at the same time, which can improve the reliability of separation measurement and make it easy to observe the separation of the layer in the mine tunnel.

[0096] Furthermore, the present invention winds the working cable on the measuring wheel, and drives the measuring wheel to rotate the measuring tape wheel of the mechanized display mechanism, so that the measuring end of the measuring tape wound on the measuring tape wheel extends out of the structural cavity, so that the displacement of the working cable can be intuitively displayed through the extension of the measuring tape, thereby reflecting the separation of the mine tunnel. The mechanized display mechanism is not only simple in structure and high in reliability, but also easy to observe the separation of the layers.

[0097] Furthermore, the digital display mechanism of the present invention is provided with a potentiometer, the potentiometer core of the potentiometer is connected to the measuring wheel through a rubber sleeve, and the potentiometer core rotates synchronously with the rubber sleeve, so that the rotation signal of the potentiometer core can be obtained, and the rotation signal is converted into an electrical signal, and the measurement structure is displayed on the digital display screen. Compared with the method of directly connecting the potentiometer core to the working cable, the connection is more stable, the transmission effect is better, it is not easy to fail, and the response is sensitive and fast.

[0098] In addition, in order to further facilitate the adjustment of the mechanized display mechanism, the present invention also installs a tightening wheel on the structural cavity shell. By providing the tightening wheel, it is convenient to apply a pre-tightening force to the clockwork spring located inside the measuring wheel, thereby facilitating the adjustment of the position angle of the measuring wheel, and further facilitating the adjustment of the extension amount and initial position of the working cable.

[0099] In order to further facilitate the recovery of the mine separation measurement and display device, a detachable connection is adopted between the structural cavity and the electrical cavity, and between the structural cavity and the fixed pipe of the present invention, so that the device can be easily disassembled into multiple sections for recovery.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A mine separation layer measurement and display device, comprising: The measuring anchor head (4) and the walking rope (20), the measuring anchor head (4) is used to be inserted into the mine separation layer to be measured point, and is characterized by: The mine separation layer measurement and display device also includes: A fixed tube (3) having a shuttle (31) movably mounted therein, the shuttle (31) being connected to a measuring anchor head (4) via a running rope (20); The structural cavity (2) is connected to the fixing tube (3), and a mechanical display mechanism is arranged inside the structural cavity (2). The mechanical display mechanism is connected to the shuttle (31) via a working cable (19) and is used to convert the displacement generated when the measuring anchor head (4) drives the shuttle (31) to move into a mechanical display; The electrical cavity (1) is connected to the structural cavity (2). The electrical cavity (1) is provided with a digital display mechanism. The detection end of the digital display mechanism is inserted into the interior of the structural cavity (2) and is used to convert the displacement signal generated by the measuring anchor head (4) driving the working cable (19) into an electrical signal and display it digitally.

2. The mine separation layer measurement and display device according to claim 1, characterized in that: The mechanical display mechanism comprises: a measuring tape and a measuring tape wheel (13) for winding the measuring tape; The measuring tape wheel (13) is arranged inside the structural cavity (2) and is coaxially connected to a measuring wheel (15) arranged inside the structural cavity (2) and used to wind a working cable (19); the outer shell (16) of the structural cavity (2) is also provided with a third notch (162) for the measuring end of the measuring tape to pass through.

3. The mine separation layer measurement and display device according to claim 2 is characterized in that: The measuring tape wheel (13) comprises a circular ring (131) and a boss (132); A second notch (1312) is provided on the side wall of the circular ring (131), and a baffle (1322) is provided on one side of the boss (132) and close to the second notch (1312), for limiting and fixing the measuring end of the measuring tape when the measuring end passes through the second notch (1312).

4. The mine separation layer measurement and display device according to claim 3 is characterized in that: The inner part of the measuring tape wheel (13) is evenly and evenly provided with three protrusions (1311) for being manually screwed to apply a pre-tightening force, and each protrusion (1311) is fixedly connected to the ring (131) and the boss (132) at the same time.

5. The mine separation layer measurement and display device according to claim 2, characterized in that: The measuring wheel (15) is provided with a narrow head (151) on one side close to the measuring tape wheel (13), and the narrow head (151) penetrates the measuring tape wheel (13) and is used for installing a rubber sleeve (14); the structural cavity cover (11) of the structural cavity (2) is provided with a through hole at a position corresponding to the rubber sleeve (14), and the through hole is used for allowing the detection end of the digital display mechanism to be inserted into the structural cavity (2) and connected to the rubber sleeve (14).

6. The device for measuring and displaying separation layer for mining according to claim 5, characterized in that: The digital display mechanism comprises: a digital display screen and a potentiometer (23); The digital display screen is arranged on a circuit board (22), the circuit board (22) is arranged inside the electrical cavity (1), and the electrical cavity housing (24) of the electrical cavity (1) is provided with a display window; The potentiometer (23) is arranged inside the electrical cavity (1), and its detection end passes through the electrical cavity housing (24) and is inserted into the through hole of the structural cavity (2), and is connected to the rubber sleeve (14), and is used to convert the rotation signal of the measuring wheel (15) into an electrical signal for digitally displaying the separation layer change.

7. The device for measuring and displaying separation layer for mining according to any one of claims 2 to 6, characterized in that: The outer ring of the measuring wheel (15) is provided with a plurality of steel wire holes (153) arranged in parallel along its axial direction for inserting the end of the working cable (19) and limiting its position; the internal space of the measuring wheel (15) is used for storing the clockwork spring, and the inner side of the measuring wheel (15) is provided with a spring clamping groove (154) for locking the spring head of the clockwork spring.

8. The device for measuring and displaying separation layer for mining according to claim 7, characterized in that: The outer shell (16) of the structural cavity (2) is provided with a central hole on the side wall close to the measuring wheel (15) for mounting a locking wheel (17); One end of the locking wheel (17) is inserted into the central hole from the outside of the housing (16) and extends into the interior of the measuring wheel (15), and the end is provided with a spring groove (171) for inserting and fixing the spring head of the clockwork spring; A plurality of tightening holes (172) are arranged in a circular array around the locking wheel (17) to facilitate applying tightening force to the clockwork spring.

9. The device for measuring and displaying separation layer for mining according to any one of claims 2 to 6, characterized in that: A pressure plate (12) for limiting the position of the measuring tape wheel (13) and the measuring wheel (15) is also provided inside the structural cavity (2); The pressure plate (12) is arranged outside the measuring tape wheel (13) and the measuring wheel (15); a steel wire groove (121) is arranged on the side wall of the pressure plate (12) corresponding to the measuring wheel (15); and a first notch (122) is arranged on the side wall of the measuring tape wheel (13) corresponding to the measuring tape wheel for the measuring end of the measuring tape to extend out.

10. The device for measuring and displaying separation layer for mining according to any one of claims 1 to 9, characterized in that: The fixed pipe (3) comprises: a sliding shuttle (31), a pipe joint (32), a rubber head fixing sleeve (33) and a fixed pipe body (34); One end of the pipe joint (32) is connected to the fixed pipe body (34), and the other end is detachably connected to the structural cavity (2); the insides of the pipe joint (32) and the fixed pipe body (34) are both provided with a slideway for the sliding shuttle (31) to slide; The shuttle (31) is movably arranged inside the slideway inside the pipe joint (32), and can slide to the inside of the slideway of the fixed pipe body (34); The rubber head fixing sleeve (33) is sleeved on the outside of the fixing pipe body (34) and is used for being inserted into the roof of the mine tunnel to prevent the fixing pipe (3) from falling off.

11. The device for measuring and displaying separation layer for mining according to any one of claims 1 to 9, characterized in that: The mine separation measurement and display device further comprises: a spare wire wheel (5); One end of the walking rope (20) is wound and stored in the spare wire wheel (5), and the other end passes through the structural cavity (2) and the fixed pipe (3) and is connected to the measuring anchor head (4).

12. A method for measuring separation layer for use in a mine, using the device for measuring and displaying separation layer for use in a mine according to any one of claims 1 to 11, characterized in that: The following steps are involved: Inserting the fixing pipe (3) into the fixed point of the mine tunnel, and inserting the measuring anchor head (4) into the separation layer measuring point; When separation occurs at the measuring point, the measuring anchor head (4) drives the shuttle (31) to slide in the fixed pipe (3) through the running rope (20), and drives the working cable (19) to move through the shuttle (31); The displacement of the working cable (19) is converted into a mechanical display through a mechanical display mechanism, and the displacement of the working cable (19) is converted into a digital display through a digital display mechanism, so that the staff can intuitively feel the separation situation of the mine.

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