An integrated high-stress relief device for coal mine roadways

Abstract

This invention discloses an integrated high-stress relief device for coal mine roadways. A traveling platform is located within the roadway, and a lifting support, an automatic drilling mechanism, and an automatic filling mechanism are fixed on the platform. A stress monitoring assembly is fixed at the top of the roadway. A high-stress judgment instrument is fixed on the lifting support and is lifted to a position close to the stress monitoring assembly via the lifting support, and is wirelessly connected to the stress monitoring assembly. This invention eliminates the need for workers to directly perform pressure relief work, improving safety. Furthermore, most of the instruments and equipment used for pressure relief are centralized, eliminating the need for temporary on-site installation, thus simplifying the pressure relief process and improving efficiency.

Description

Technical Field

[0001] This invention relates to the technical field of high stress relief devices for coal mine roadways, and more specifically to an integrated high stress relief device for coal mine roadways. Background Technology

[0002] The high stress accumulated during coal mine face mining and roadway excavation has a significant destructive impact on roadways, causing a series of dynamic pressure phenomena such as floor heave, roof subsidence, rock bursts, spalling, and support tilting. To monitor and prevent high stress in coal mine roadways, technologies such as anchor bolt stress gauge monitoring, real-time monitoring of hydraulic support pressure, floor heave prediction, and roadway cross-sectional shrinkage monitoring are generally used. Once stress concentration is detected at a certain point in the roadway, the key technologies typically employed are borehole blasting and hydraulic decompression. Both of these technologies require drilling and the installation of different monitoring instruments. Currently, workers typically measure the pressure at the top of the roadway using handheld measuring instruments, and manually drill holes and place explosives into them. This not only consumes a large amount of labor but also carries a high risk factor.

[0003] Meanwhile, various instruments and equipment are required during the depressurization process in the roadway. Currently, workers usually assemble the necessary instruments and equipment together temporarily at the site where the pressure is high. This not only poses a high risk but also complicates the depressurization process, resulting in low depressurization efficiency.

[0004] Therefore, how to provide an integrated high-stress relief device for coal mine roadways that reduces the risk factor while improving the pressure relief efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides an integrated high-stress relief device for coal mine roadways, which avoids workers directly performing the pressure relief work, improves the safety factor, and most of the instruments and equipment used for pressure relief are concentrated together, eliminating the need for temporary on-site installation, thus simplifying the pressure relief process and improving pressure relief efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated high-stress relief device for coal mine roadways includes:

[0008] The walking platform is located in the tunnel and is equipped with a lifting support, an automatic drilling mechanism and an automatic filling mechanism.

[0009] A stress monitoring assembly, which is fixed to the top of the roadway;

[0010] A high-stress detector is fixed on the lifting bracket and is lifted by the lifting bracket to be close to the stress monitoring assembly, and is wirelessly connected to the stress monitoring assembly.

[0011] Preferably, the walking platform includes:

[0012] A base plate, on one side of which a traveling wheel is mounted;

[0013] A support plate, which is parallel to the base plate and spaced apart from the side of the base plate away from the traveling wheel;

[0014] A spring shock absorber is located in the gap between the base plate and the support plate, and both ends of the spring shock absorber are fixedly connected to the base plate and the support plate respectively.

[0015] Preferably, the lifting bracket, the automatic punching mechanism, and the automatic filling mechanism are all fixed on the support plate and are arranged in an equilateral triangle.

[0016] Preferably, the stress monitoring assembly includes: a stress anchor bolt, a delamination fracture line, an anchor bolt stress tray, an anchor bolt pressure box, and a delamination judgment table. The stress anchor bolt, the delamination fracture line, the anchor bolt stress tray, the anchor bolt pressure box, and the delamination judgment table are all fixed at the top of the roadway and close to each other, and are all wirelessly connected to the high stress judgment instrument.

[0017] Preferably, the automatic punching mechanism includes:

[0018] A power unit, which is fixed to the support plate and has an output shaft;

[0019] A connecting rod, one end of which is connected to the output shaft of the power component by a fastener;

[0020] A drill bit, which is connected to the other end of the connecting rod.

[0021] Preferably, the drill bit is detachably connected to the connecting rod.

[0022] Preferably, the drill bit is a variable diameter drill bit.

[0023] Preferably, the automatic drug-filling mechanism includes:

[0024] A drug-filling arm, which is fixed to the support plate;

[0025] A conversion disc, which is rotatably connected to the drug-filling arm;

[0026] A loading tube, which is fixed to the conversion plate by a first bracket;

[0027] The drug pushing assembly is fixed on the conversion plate by a second bracket and is close to the drug loading tube.

[0028] Preferably, the drug delivery component includes:

[0029] A hydraulic cylinder, the cylinder body of which is fixed on the second bracket and close to the drug loading tube;

[0030] A push rod is provided, which is collinear with the central axis of the loading tube, and the outer diameter of the push rod is smaller than the inner diameter of the loading tube. One end of the push rod is fixed to the piston rod of the hydraulic cylinder, and the other end can be moved into the loading tube by extending the piston rod of the hydraulic cylinder.

[0031] As can be seen from the above technical solution, compared with the prior art, the present invention discloses an integrated high-stress relief device for coal mine roadways, which can achieve the following technical effects:

[0032] In this invention, the measurement, drilling, and drug delivery operations are all completed through the invention itself during the entire depressurization process, eliminating the need for manual labor. This improves worker safety and the overall safety factor of the invention. Furthermore, the high-stress judgment instrument, automatic drilling mechanism, and automatic drug delivery mechanism are all integrated into the walking platform. Therefore, the measurement, drilling, and drug delivery processes can be switched by moving the walking platform. Most instruments and equipment do not need to be temporarily installed on-site, thus simplifying the depressurization process and improving depressurization efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of an integrated high-stress relief device for coal mine roadways according to the present invention.

[0035] The components are as follows: 1-Walking platform; 2-Lifting support; 3-Automatic drilling mechanism; 4-Automatic filling mechanism; 5-Stress monitoring assembly; 6-High stress judgment instrument; 11-Base plate; 12-Walking wheel; 13-Bearing plate; 14-Spring shock absorber; 51-Stress anchor bolt; 52-Delamination fracture line; 53-Anchor bolt stress tray; 54-Anchor bolt pressure box; 55-Delamination judgment table; 31-Power component; 32-Connecting rod; 33-Fastener; 34-Drill bit; 41-Filling arm; 42-Conversion plate; 43-Filling tube; 44-First support; 45-Pushing assembly; 46-Second support. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This invention discloses an integrated high-stress relief device for coal mine roadways, comprising:

[0038] Walking platform 1 is located in the tunnel, and a lifting support 2, an automatic drilling mechanism 3 and an automatic filling mechanism 4 are fixed on the walking platform 1.

[0039] Stress monitoring assembly 5 is fixed at the top of the roadway;

[0040] The high stress detector 6 is fixed on the lifting bracket 2 and is lifted by the lifting bracket 2 to be close to the stress monitoring assembly 5 and wirelessly connected to the stress monitoring assembly 5.

[0041] This invention uses a lifting support 2 to raise the high-stress judgment instrument 6 to a position close to the stress monitoring assembly 5. This allows the high-stress judgment instrument 6 to determine whether a section at the top of the roadway is experiencing pressure concentration and delamination. The automatic drilling mechanism 3 and the automatic explosive filling mechanism 4 can both operate on this section at the top of the roadway via the traveling platform 1. The automatic drilling mechanism 3 automatically drills holes in this section, and the automatic explosive filling mechanism 4 automatically delivers explosives to it, ultimately sealing the holes and detonating the explosives to complete the high-stress relief process. Throughout the entire depressurization process, the measurement, drilling, and explosive delivery operations are all performed by the invention itself, eliminating the need for manual labor. This improves worker safety and the overall safety factor of the invention. Furthermore, the high-stress judgment instrument 6, automatic drilling mechanism 3, and automatic explosive filling mechanism 4 are all integrated onto the traveling platform 1. Therefore, switching between measurement, drilling, and explosive delivery processes can be completed simply by moving the traveling platform 1. Most instruments and equipment do not require temporary on-site installation, simplifying the depressurization process and improving efficiency.

[0042] To further optimize the above technical solution, the walking platform 1 includes:

[0043] Base plate 11, with a traveling wheel 12 mounted on one side of the base plate 11;

[0044] The support plate 13 is parallel to the base plate 11 and is spaced apart from the side of the base plate 11 away from the traveling wheel 12;

[0045] Spring shock absorber 14 is located in the gap between base plate 11 and bearing plate 13, and both ends of spring shock absorber 14 are fixedly connected to base plate 11 and bearing plate 13 respectively.

[0046] The beneficial effects that can be achieved by adopting the above technical solution are as follows: the walking platform 1 can be moved by the walking wheels 12 so that the measurement, drilling and drug delivery processes can be easily switched, and the spring shock absorber 14 can improve the stability of the invention when walking in the tunnel.

[0047] To further optimize the above technical solution, the lifting bracket 2, the automatic drilling mechanism 3 and the automatic filling mechanism 4 are all fixed on the bearing plate 13 and are distributed in an equilateral triangle.

[0048] The beneficial effects that can be achieved by adopting the above technical solution are as follows: the three processes of measurement, drilling and drug delivery can be switched every 60 degrees of rotation of the walking platform 1, thereby making the depressurization process of the present invention easy and convenient, and improving the depressurization efficiency of the present invention.

[0049] To further optimize the above technical solution, the stress monitoring assembly 5 includes: stress anchor bolt 51, delamination fracture line 52, anchor bolt stress tray 53, anchor bolt pressure box 54, and delamination judgment table 55. The stress anchor bolt 51, delamination fracture line 52, anchor bolt stress tray 53, anchor bolt pressure box 54, and delamination judgment table 55 are all fixed at the top of the roadway and close to each other, and are all wirelessly connected to the high stress judgment instrument 6.

[0050] The present invention adopts the above technical solution, and the beneficial effects that can be achieved are: enabling the high stress judgment instrument 6 to simultaneously obtain information from multiple monitoring instruments such as stress anchor 51, delamination fracture line 52, anchor stress tray 53, anchor pressure box 54 and delamination judgment table 55, thereby improving the accuracy of the analysis results of the high stress judgment instrument 6.

[0051] To further optimize the above technical solution, multiple installation holes are provided at the top of the tunnel to install stress anchor bolts 51, delamination fracture lines 52, anchor bolt stress trays 53, anchor bolt pressure boxes 54, and delamination judgment tables 55 in a one-to-one correspondence.

[0052] To further optimize the above technical solution, the automatic punching mechanism 3 includes:

[0053] The power component 31 is fixed on the support plate 13 and has an output shaft;

[0054] Connecting rod 32, one end of which is connected to the output shaft of power component 31 by fastener 33;

[0055] Drill bit 34 is connected to the other end of connecting rod 32.

[0056] The beneficial effects that can be achieved by adopting the above technical solution are as follows: the power component 31 drives the drill bit 34 to rotate through the connecting rod 32, thereby enabling the present invention to complete the operation of drilling pressure relief holes.

[0057] To further optimize the above technical solution, the power component 31 is an electric drill or a pneumatic pick.

[0058] To further optimize the above technical solution, the drill bit 34 and the connecting rod 32 are detachably connected.

[0059] The beneficial effects that can be achieved by adopting the above technical solution are: it facilitates the replacement of drill bit 34.

[0060] To further optimize the above technical solution, drill bit 34 is a variable diameter drill bit.

[0061] The beneficial effects that can be achieved by adopting the above technical solution are as follows: by using a single drill bit 34 to drill pressure relief holes of different diameters, the frequency of replacing the drill bit 34 can be reduced, thereby further improving the pressure relief efficiency of the present invention.

[0062] To further optimize the above technical solution, the automatic drug-filling mechanism 4 includes:

[0063] Drug filling arm 41, the drug filling arm 41 is fixed on the support plate 13;

[0064] The conversion disc 42 is rotatably connected to the drug-filling arm 41;

[0065] The loading tube 43 is fixed to the conversion plate 42 by the first bracket 44;

[0066] The drug pushing assembly 45 is fixed on the conversion plate 42 by the second bracket 46 and is close to the drug loading tube 43.

[0067] The beneficial effects that can be achieved by adopting the above technical solution are as follows: the angle of the charging tube 43 and the pushing component 45 can be adjusted by the conversion disc 42, which facilitates the filling of detonators in the charging tube 43 and the pushing component 45 to push the detonators in the charging tube 43 into the pressure relief hole, thus further improving the pressure relief efficiency of the present invention.

[0068] To further optimize the above technical solution, the conversion disk 42 has a through mounting hole, and the filling arm 41 is rotatably connected to the mounting hole through a bearing.

[0069] To further optimize the above technical solution, the drug delivery component 45 includes:

[0070] The hydraulic cylinder has its cylinder body fixed on the second bracket 46 and close to the charging tube 43.

[0071] The push rod is collinear with the central axis of the loading tube 43, and the outer diameter of the push rod is smaller than the inner diameter of the loading tube 43. One end of the push rod is fixed on the piston rod of the hydraulic cylinder, and the other end can be moved into the loading tube 43 by extending the piston rod of the hydraulic cylinder.

[0072] The present invention adopts the above technical solution, and the beneficial effects that can be achieved are as follows: by the extension and retraction of the piston rod of the hydraulic cylinder, the push rod can be inserted into or pulled out of the charging tube 43, so as to push the explosive in the charging tube 43 into the pressure relief hole.

[0073] To further optimize the above technical solution, a pusher is fixed on the bearing plate 13.

[0074] The beneficial effects that can be achieved by adopting the above technical solution are: the walking platform 1 can be moved easily by pushing the handle.

[0075] To further optimize the above technical solution, the walking platform 1 is driven by a motor. The specific technical solution for the motor to drive the walking platform 1 is existing technology and will not be described in detail here.

[0076] Example 1:

[0077] This invention discloses an integrated high-stress relief device for coal mine roadways, located in a certain section of the roadway. That is, if pressure measurement and relief operations are required for the entire top section of the roadway along its length, multiple integrated high-stress relief devices of this invention need to be installed along the roadway length. The working principle of this integrated high-stress relief device for coal mine roadways for pressure measurement and relief of a certain section at the top of the roadway is as follows:

[0078] This invention measures the stress at the top of the roadway using stress anchor bolts 51, anchor bolt stress trays 53, and anchor bolt pressure boxes 54. It also measures the expansion and contraction of this section at the top of the roadway using delamination fracture lines 52 and delamination judgment tables 55 (if this section at the top of the roadway experiences sagging, the delamination fracture lines 52 and delamination judgment tables 55 will show expansion; if this section experiences bulging, the delamination fracture lines 52 and delamination judgment tables 55 will show contraction). The lifting support 2 is then manually raised. The lifting support 2 (which can be a hydraulically controlled support, as hydraulically controlled supports are existing technology) is used to raise the roadway. (Details will not be elaborated here) The high-stress judgment instrument 6 is raised to be close to the stress anchor 51, the anchor stress tray 53 and the anchor pressure box 54, the delamination fracture line 52 and the delamination judgment table 55 respectively. The high-stress judgment instrument 6 will then wirelessly connect to the stress anchor 51, the anchor stress tray 53 and the anchor pressure box 54, the delamination fracture line 52 and the delamination judgment table 55. Thus, the high-stress judgment instrument 6 can collect data from the stress anchor 51, the anchor stress tray 53 and the anchor pressure box 54, the delamination fracture line 52 and the delamination judgment table 55, and determine whether there is stress concentration and delamination problem at the top of the roadway.

[0079] After the high stress judgment instrument 6 has collected the data, the lifting support 2 is manually lowered so that the results displayed on the high stress judgment instrument 6 can be observed.

[0080] When there is stress concentration and delamination at the top of the tunnel, the walking platform 1 is moved so that the automatic drilling mechanism 3 corresponds to the position at the top of the tunnel where there is stress concentration and delamination. The connecting rod 32 and the drill bit 34 are connected to the power unit 31 in sequence. The power unit 31 is controlled to drive the drill bit 34 to rotate through the connecting rod 32, so that the automatic drilling mechanism 3 of the present invention drills a pressure relief hole in the tunnel wall at the top of the tunnel.

[0081] Then, control the movement of the walking platform 1 so that the automatic filling mechanism 4 corresponds to the position of the pressure relief hole. Then, the angle of the charging tube 43 and the pushing assembly 45 can be adjusted by the conversion disc 42. After the detonator is filled into the charging tube 43, rotate the conversion disc 42 again so that one end of the charging tube 43 corresponds to the position of the pressure relief hole. Then, control the push rod on the pushing assembly 45 to enter the charging tube 43 through the other end of the charging tube 43, thereby sending the explosive into the pressure relief hole. Finally, seal the hole and detonate the explosive to complete the high-stress pressure relief of the roadway.

[0082] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0083] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A coal mine tunnel high stress pressure relief integrated device, characterized in that, The utility model relates to a kind of automatic filling and punching mechanism for roadway, which comprises: Walking platform (1), walking platform (1) is located in the roadway, and the lifting support (2), automatic punching mechanism (3) and automatic filling mechanism (4) are fixed on the walking platform (1); Stress monitoring assembly (5), stress monitoring assembly (5) is fixed at the top of the roadway; High stress judging instrument (6), high stress judging instrument (6) is fixed on the lifting support (2), and the high stress judging instrument (6) is lifted to be close to the stress monitoring assembly (5) by the lifting support (2), and is wirelessly connected with the stress monitoring assembly (5); The walking platform (1) comprises: Bottom plate (11), one side of bottom plate (11) is installed with walking wheel (12); Bearing plate (13), bearing plate (13) is parallel with the bottom plate (11), and is spaced apart from the bottom plate (11) away from the side of walking wheel (12);Bearing plate (13) is fixed with push hand, and push hand is convenient for moving walking platform (1); Spring shock absorber (14), spring shock absorber (14) is located in the interval between the bottom plate (11) and the bearing plate (13), and the two ends of the spring shock absorber (14) are fixedly connected with the bottom plate (11) and the bearing plate (13) one by one; The lifting support (2), the automatic punching mechanism (3) and the automatic filling mechanism (4) are all fixed on the bearing plate (13), and are distributed in equilateral triangle simultaneously; The stress monitoring assembly (5) comprises: stress anchor rod (51), separation fracture line (52), anchor rod stress tray (53), anchor rod pressure box (54) and separation judging table (55), and the stress anchor rod (51), separation fracture line (52), anchor rod stress tray (53), anchor rod pressure box (54) and separation judging table (55) are all fixed at the top of the roadway, and are close to each other, and are all wirelessly connected with the high stress judging instrument (6);The expansion amount of the section of the top of roadway is measured by separation fracture line (52) and separation judging table (55).

2. The coal mine roadway high stress pressure relief integrated device according to claim 1, characterized in that, The automatic punching mechanism (3) comprises: Power component (31), power component (31) is fixed on the bearing plate (13), and the power component (31) has output shaft; Connecting rod (32), one end of connecting rod (32) is connected on the output shaft of power component (31) by fastener (33); Drill bit (34), drill bit (34) is connected on the other end of connecting rod (32).

3. The coal mine roadway high stress pressure relief integrated device according to claim 2, characterized in that, The drill bit (34) and the connecting rod (32) are detachably connected.

4. The coal mine roadway high stress pressure relief integrated device according to claim 2, characterized in that, The drill bit (34) is variable-diameter drill bit.

5. The coal mine roadway high stress pressure relief integrated device according to claim 1, characterized in that, The automatic filling mechanism (4) comprises: Medicine filling arm (41), medicine filling arm (41) is fixed on the bearing plate (13); Conversion disc (42), conversion disc (42) is rotatably connected on the medicine filling arm (41); Medicine loading pipe (43), medicine loading pipe (43) is fixed on the conversion disc (42) by first support (44); Medicine pushing assembly (45), medicine pushing assembly (45) is fixed on the conversion disc (42) by second support (46), and is close to the medicine loading pipe (43).

6. The coal mine roadway high stress pressure relief integrated device according to claim 5, characterized in that, The propelling assembly (45) comprises: a hydraulic cylinder, the cylinder body of which is fixed on the second support (46) and is close to the charging pipe (43); a push rod, which is collinear with the central axis of the charging pipe (43) and has an outer diameter smaller than the inner diameter of the charging pipe (43), one end of the push rod being fixed on the piston rod of the hydraulic cylinder and the other end being movable into the charging pipe (43) through the elongation movement of the piston rod of the hydraulic cylinder.

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