Coal mine geological structure automatic forming and mining analog simulation experiment device and use method

Abstract

The invention discloses a coal mine geologic structure automatic forming and mining analog simulation experiment device, and particularly relates to the technical field of simulation experiment devices.The coal mine geologic structure automatic forming and mining analog simulation experiment device comprises a base, a weighing and stirring mechanism and a feeding mechanism are installed at the top of the base, and the weighing and stirring mechanism is connected with the feeding mechanism through a conveying pipe; a main frame is fixedly arranged at one end of the base, the front portion and the rear portion of the main frame are each provided with a confining pressure loading mechanism, and a movable mining structure is arranged on the inner side of the main frame. The mining assembly and the conveying assembly can be moved to advance in the main frame, meanwhile, the mining assembly can conduct mining work along the bent shape of a rock stratum through the arrangement of the protective shell and the tank crawler belt, and meanwhile the conveying assembly can conduct conveying work along with bending of the tank crawler belt; the movable mining structure, the axial loading structure and the shaping structure are matched with one another, so that a coal seam mining similar simulation experiment containing geological structures such as faults and wrinkles can be carried out.

Description

Technical Field

[0001] The invention relates to the technical field of simulation experiment devices, and in particular to a simulation experiment device similar to automatic shaping and mining of coal mine geological structures and a use method thereof. Background Art

[0002] Under the strong squeezing effect of crustal movement, coal (rock) layers fracture and bend, forming geological structures such as faults and folds. Since the internal stress environment of geological structures is too complex compared to single-angle coal (rock) layers, coal mine safety mining, roadway maintenance and surface settlement control face huge challenges. Therefore, it is necessary to conduct similar simulation experiments to study the special stress environment of coal (rock) layers and the fracture characteristics of overlying rock layers during mining disturbance under geological structural environment, and to record and analyze data.

[0003] However, the traditional similar simulation experimental device cannot automatically shape the real geological structure conditions of coal (rock) strata, and the similar simulation experiment of coal seams with geological structures cannot realize automatic mining. The artificial modeling and mining process will seriously affect the accuracy of the experiment, and thus it is impossible to conduct scientific and accurate research on the state of coal and rock mass in the geological structure area. Therefore, there is an urgent need for a similar simulation experimental device for automatic shaping and mining of coal mine geological structures to meet research needs. Summary of the invention

[0004] The purpose of the present invention is to provide a coal mine geological structure automatic shaping and mining similar simulation experimental device, which solves the technical problems in the background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A similar simulation experimental device for automatic forming and mining of coal mine geological structures comprises a base, a weighing and stirring mechanism and a feeding mechanism are respectively installed on the top of the base, the weighing and stirring mechanism is connected to the feeding mechanism through a material transfer pipe, a main frame is fixedly arranged at one end of the base, a group of confining pressure loading mechanisms are arranged at the front and rear parts of the main frame, and a mobile mining structure is arranged on the inner side of the main frame.

[0007] As a further scheme of the present invention, the mobile mining structure includes two protective shells, which are movably arranged on the inner side of the main frame. The protective shells are composed of four protective covers one, several protective covers two, several storage plates, several rack plates one and several rack plates two. The protective cover one is rotatably connected to the protective cover two, and two adjacent protective covers two are rotatably connected. The storage plates are fixedly connected to the protective covers one and two at corresponding positions, and two adjacent storage plates are rotatably connected. Rack plates one and two rack plates two are fixedly arranged on the top and bottom of the storage plates. Tank tracks are arranged on the inner side of the protective shell, and the tank tracks are composed of two track ones, two track twos and several track threes. The track one is rotatably connected to the track two and the track three, the track two is rotatably connected to the track one and the track three, and the two adjacent track threes are rotatably connected.

[0008] As a further solution of the present invention, two groups of power components 1 and several groups of power components 2 are also arranged on the inner side of the protective shell, the power component 1 is composed of a rack 1, two displacement gears 1, two motors 1, two racks 2, four displacement gears 2 and four motors 2, the power component 2 is composed of two racks 2, four displacement gears 2, four motors 2 and a connecting frame, two displacement gears 1 are rotatably arranged on the inner side of the rack 1, and one end of the displacement gear 1 passes through the inner side of the rack 1 and is fixedly connected to the output shaft of the motor 1, and the inner side of the rack 2 is rotatable Two displacement gears 2 are provided, and one end of the displacement gear 2 passes through the inner side of the storage rack 2 and is fixedly connected to the output shaft of the motor 2. The storage rack 1 and the storage rack 2 are fixedly connected. A storage box is fixedly provided on the top of the storage rack 1 of one group of power components 1. The top of the storage box passes through one of the crawlers 1. The storage box is connected with four bolt fasteners through threads. The storage rack 1 of the other group of power components 1 is fixedly connected to the other crawler 1 through a fixing block. The two storage racks 2 of the power component 2 are fixedly connected through a connecting frame, and the connecting frame is fixedly connected to the crawler 3 at the corresponding position.

[0009] As a further solution of the present invention, a mining assembly is provided on the inner side of the main frame, and the mining assembly includes a serrated plate, which is movably arranged on the inner side of the main frame, and four threaded holes are opened at both ends of the bottom of the serrated plate, and the two ends of the bottom of the serrated plate are respectively plugged with two storage boxes, and the threads of the bolt fasteners and the threads of the threaded holes of the serrated plate are adaptively matched, a sliding rod frame is fixedly provided on the top of the serrated plate, and a protective plate is fixedly connected to the top of the sliding rod frame, and a slider 1 is slidably provided on the outside of the sliding rod frame, and a motor 3 is provided at one end of the slider 1, and the output shaft of the motor 3 passes through one end of the slider 1 and is fixedly connected to a gear plate, and the gear plate is meshed with the serrated plate, and a motor 4 is provided on the top of the slider 1, and the output shaft of the motor 4 passes through the top of the slider 1 and is fixedly connected to an excavation mechanism, and a motor 5 is provided at the other end of the slider 1, and the output shaft of the motor 5 passes through the other end of the slider 1 and is fixedly connected to a rotating paddle.

[0010] As a further solution of the present invention, several groups of axial loading structures are provided on the inner top surface of the main frame, and the axial loading structure includes a multi-stage electric telescopic rod 1, which is provided on the inner top surface of the main frame, one end of the multi-stage electric telescopic rod 1 is rotatably connected to a base plate 1, and both ends of the base plate 1 are rotatably connected to a base plate 2, one end of the multi-stage electric telescopic rod 1 is externally rotatably connected to two multi-stage electric telescopic rods 2, and one end of the multi-stage electric telescopic rod 2 is rotatably connected to the top of the base plate 2, two square holes are provided on the top of the base plate 1 and the base plate 2, and base plates 3 are slidably provided on the inner sides of the front and rear parts of the base plate 1 and the base plate 2, two multi-stage electric telescopic rods 3 are provided on the top of the base plate 1 and the base plate 2, and one end of the multi-stage electric telescopic rod 3 is fixedly connected to the base plate 3 at the corresponding position.

[0011] As a further scheme of the present invention, a shaping structure is arranged on the top of one group of confining pressure loading mechanisms, and the shaping structure includes a hollow frame, which is fixedly arranged on the top of the confining pressure loading mechanism, and a reciprocating screw is rotatably arranged on the inner side of the hollow frame, one end of the reciprocating screw passes through the inner side of the hollow frame and is fixedly connected to the output shaft of the motor seven, a slider two is slidingly arranged on the outside of the reciprocating screw, a multi-stage electric telescopic rod four is fixedly arranged on the rear part of the slider two, one end of the multi-stage electric telescopic rod four is arranged with an L-shaped plate, and a motor eight is arranged on the top of the L-shaped plate, the output shaft of the motor eight passes through the top of the L-shaped plate and is fixedly connected to the multi-stage electric telescopic rod five, and one end of the multi-stage electric telescopic rod five is fixedly connected to a scraper.

[0012] As a further solution of the present invention, a reserved component is arranged on the inner side of the main frame, and the reserved component is composed of a head box body, a tail box body, a plurality of connecting box bodies, a plurality of opening and closing plates and a plurality of hydraulic cylinders. The head box body, the tail box body and the connecting box bodies at corresponding positions are rotatably connected, and two adjacent connecting box bodies are rotatably connected. One side of the head box body, the tail box body and the connecting box body are rotatably provided with an opening and closing plate, and the inside of the head box body, the tail box body and the connecting box body are rotatably provided with a hydraulic cylinder, and the other end of the hydraulic cylinder is rotatably connected to the opening and closing plate.

[0013] As a further solution of the present invention, a transmission component is arranged on the outside of the slide rod frame, and the transmission component includes a transmission cylinder, and the transmission cylinder is fixedly connected to the slide rod frame through two connecting plates, and a transmission paddle is rotatably arranged on the inner side of the transmission cylinder, one end of the transmission paddle passes through the inner end of the transmission cylinder and is fixedly connected to the output shaft of motor six, and the protective plate is fixedly connected to the connecting plate.

[0014] As a further solution of the present invention, a plurality of threaded holes are opened at one end of the main frame, a plurality of baffles are movably arranged on the inner side of one end of the main frame, and both ends of the baffles are connected with screws through threads, the threads of the screws are adaptively matched with the threads of the threaded holes of the main frame, the displacement gear 1 is adaptively matched with the meshing of rack plate 1, and the displacement gear 2 is adaptively matched with the meshing of rack plate 2.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention provides a mobile mining structure, which is conducive to moving the mining component and the transmission component so that they can move forward inside the main frame. At the same time, the provision of the protective shell and the tank track enables the mining component to perform mining work along the curved shape of the rock formation, and the transmission component can also perform transmission work along the curvature of the tank track.

[0017] 2. By providing the protection component, the tank track, the power component 1 and the power component 2, it is convenient to move the tank track inside the protection shell, thereby enabling the mining component to move forward inside the main frame;

[0018] 3. By setting up reserved components and transmission components in conjunction with the mobile mining structure, it is beneficial to transport and process the rock fragments produced by the mined rock strata, and avoid the accumulation of rock fragments inside the main frame to affect the experiment;

[0019] 4. By setting up the axial loading structure, it is beneficial to load the rock formations of different forms, so that the rock formations are compacted during modeling. At the same time, the axial force conditions of the model can be restored according to the on-site conditions during the mining experiment;

[0020] 5. By setting up the shaping structure, it is helpful to shape the rock layer, so that the coal and rock layers inside the main frame form the actual existing geological structure, which is conducive to the implementation of similar simulation experiments on coal mine geological structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0023] Figure 3 It is a three-dimensional structural schematic diagram of a confining pressure loading mechanism and a main frame of a similar simulation experimental device for automatic forming and mining of coal mine geological structures of the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of a placement plate of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of a protective cover 1 and a protective cover 2 of a similar simulation experimental device for automatic forming and mining of coal mine geological structures of the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of a tank track of a similar simulation experimental device for automatic forming and mining of coal mine geological structures of the present invention;

[0027] Figure 7 The invention is a kind of coal mine geological structure automatic shaping and mining similar simulation experimental device Figure 6 Enlarged view of point A in the middle;

[0028] Figure 8 The invention is a kind of coal mine geological structure automatic shaping and mining similar simulation experimental device Figure 6 Enlarged view of point B in the middle;

[0029] Fig. 9 The invention is a kind of coal mine geological structure automatic shaping and mining similar simulation experimental device Figure 6 Enlarged view of point C in the middle;

[0030] Fig.10 It is a side view structural schematic diagram of a partial structure of a simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0031] Fig.11 It is a schematic diagram of the cross-sectional three-dimensional structure of a protective plate of a similar simulation experimental device for automatic forming and mining of coal mine geological structures according to the present invention;

[0032] Fig.12 It is a three-dimensional structural schematic diagram of a slide bar frame of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0033] Fig.13 It is a schematic diagram of the three-dimensional structure of the reserved components of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures of the present invention;

[0034] Fig.14 It is a schematic diagram of the split three-dimensional structure of the head box body, the tail box body and the connecting box body of a similar simulation experimental device for automatic forming and mining of coal mine geological structures of the present invention;

[0035] Fig.15 It is a three-dimensional structural schematic diagram of a mobile mining structure and reserved components of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures of the present invention;

[0036] Fig.16 It is a three-dimensional structural schematic diagram of a mobile mining structure and reserved components from another perspective of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures of the present invention;

[0037] Fig.17 It is a three-dimensional structural schematic diagram of an axial loading structure of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0038] Fig.18 It is a demonstration diagram of the bottom plate of a similar simulation experimental device for automatic forming and mining of coal mine geological structure of the present invention after three extensions;

[0039] Fig.19 A three-dimensional structural diagram of a shaping structure of a coal mine geological structure automatic shaping and mining similar simulation experimental device of the present invention

[0040] Fig. 20 It is a schematic diagram of the overall side view structure of a similar simulation experimental device for automatic shaping and mining of coal mine geological structures according to the present invention;

[0041] Fig.21 The present invention is a schematic diagram of a steel plate crawler of a similar simulation experimental device for automatic forming and mining of coal mine geological structures.

[0042] In the figure: 1. base; 2. weighing and mixing mechanism; 3. feeding mechanism; 4. main frame; 5. baffle; 6. screw; 7. confining pressure loading mechanism; 8. mobile mining structure; 9. axial loading structure; 10. shaping structure; 11. protective cover 1; 12. protective cover 2; 13. storage plate; 14. rack plate 1; 15. rack plate 2; 16. crawler track 1; 17. crawler track 2; 18. crawler track 3; 19. storage rack 1; 20. displacement gear 1; 21. motor 1; 22. storage rack 2; 23. displacement gear 2; 24. motor 2; 25. storage box; 26. bolt fastener; 27. fixing block; 28. connecting frame; 29. ​​serrated plate; 30. slide bar frame; 31. protective plate ; 32. Slider 1; 33. Motor 3; 34. Gear plate; 35. Motor 4; 36. Excavation mechanism; 37. Motor 5; 38. Rotating paddle; 39. Conveying cylinder; 40. Conveying paddle; 41. Motor 6; 42. Head box body; 43. Tail box body; 44. Connecting box body; 45. Opening and closing plate; 46. Hydraulic cylinder; 47. Multi-stage electric telescopic rod 1; 48. Bottom plate 1; 49. Bottom plate 2; 50. Multi-stage electric telescopic rod 2; 51. Bottom plate 3; 52. Multi-stage electric telescopic rod 3; 53. Hollow frame; 54. Reciprocating screw rod; 55. Motor 7; 56. Slider 2; 57. Multi-stage electric telescopic rod 4; 58. Motor 8; 59. Multi-stage electric telescopic rod 5; 60. Scraper. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] like Figure 1-Figure 21 As shown, a simulation experimental device similar to automatic forming and mining of coal mine geological structure includes a base 1, and a weighing and mixing mechanism 2 and a feeding mechanism 3 are respectively installed on the top of the base 1. The weighing and mixing mechanism 2 is connected to the feeding mechanism 3 through a material transfer pipe. A main frame 4 is fixedly arranged at one end of the base 1, and a group of confining pressure loading mechanisms 7 are arranged at the front and rear parts of the main frame 4. A mobile mining structure 8 is arranged on the inner side of the main frame 4.

[0045] The confining pressure loading mechanism 7 can seal the front and rear parts of the main frame 4 , and an acoustic emission probe can be arranged on the surface of the confining pressure plate to monitor the internal rock formation simulation work of the main frame 4 .

[0046] The mobile mining structure 8 includes two protective shells, which are movably arranged on the inner side of the main frame 4. The protective shell consists of four protective covers 11, several protective covers 12, several storage plates 13, several rack plates 14 and several rack plates 2 15. The protective cover 11 and the protective cover 2 12 are rotatably connected, and two adjacent protective covers 2 12 are rotatably connected. The storage plate 13 is fixedly connected to the protective cover 1 1 and the protective cover 2 12 at the corresponding position, and two adjacent storage plates 13 are rotatably connected. The top and bottom of the storage plate 13 are fixedly provided with a rack plate 14 and two rack plates 2 15. The inner side of the protective shell is provided with a tank track, which consists of two track ones 16, two track twos 17 and several track threes 18. The track one 16 is rotatably connected to the track two 17 and the track three 18, the track two 17 is rotatably connected to the track one 16 and the track three 18, and the adjacent two track threes 18 are rotatably connected.

[0047] The protective shell plays a protective role on the mobile mining structure 8. The protective shell cooperates with the tank tracks to seal the interior of the protective shell to prevent rock fragments from entering and affecting the movement of the tank tracks.

[0048] Two groups of power components 1 and several groups of power components 2 are also arranged on the inner side of the protective shell. The power component 1 is composed of a rack 19, two displacement gears 120, two motors 121, two racks 22, four displacement gears 23 and four motors 24. The power component 2 is composed of two racks 22, four displacement gears 23, four motors 24 and a connecting frame 28. Two displacement gears 20 are rotatably arranged on the inner side of the rack 19, and one end of the displacement gear 20 passes through the inner side of the rack 19 and is fixedly connected to the output shaft of the motor 121. Two displacement gears 22 are rotatably arranged on the inner side of the rack 22. 3, and one end of the displacement gear 23 passes through the inner side of the storage rack 22 and is fixedly connected to the output shaft of the motor 24, the storage rack 19 and the storage rack 22 are fixedly connected, a storage box 25 is fixedly arranged on the top of the storage rack 19 of one group of power components 1, the top of the storage box 25 passes through one of the crawlers 16, and the storage box 25 is connected with four bolt fasteners 26 through threads, and the storage rack 19 of another group of power components 1 is fixedly connected to another crawler 16 through a fixing block 27, and the two storage racks 22 of the power component 2 are fixedly connected through a connecting frame 28, and the connecting frame 28 is fixedly connected to the crawler 3 18 at the corresponding position.

[0049] Power assembly one and power assembly two provide power support for the tank tracks, allowing the mining assembly and the transmission assembly to move forward as a whole.

[0050] A mining assembly is provided on the inner side of the main frame 4, and the mining assembly includes a sawtooth plate 29, which is movably provided on the inner side of the main frame 4, and four threaded holes are provided at both ends of the bottom of the sawtooth plate 29, and the two ends of the bottom of the sawtooth plate 29 are respectively plugged with two storage boxes 25, and the threads of the bolt fasteners 26 and the threaded holes of the sawtooth plate 29 are adaptively matched, and a slide bar frame 30 is fixedly provided on the top of the sawtooth plate 29, and a protective plate 31 is fixedly connected to the top of the slide bar frame 30, and the outer sliding device of the slide bar frame 30 A slider 32 is provided, and a motor 33 is provided at one end of the slider 32. The output shaft of the motor 33 passes through one end of the slider 32 and is fixedly connected to a gear plate 34, and the gear plate 34 is meshed with the serrated plate 29. A motor 4 35 is provided on the top of the slider 32. The output shaft of the motor 4 35 passes through the top of the slider 32 and is fixedly connected to an excavation mechanism 36. A motor 5 37 is provided at the other end of the slider 32. The output shaft of the motor 5 37 passes through the other end of the slider 32 and is fixedly connected to a rotating paddle 38.

[0051] The mining assembly can perform mining work on the rock formation, and the rotating paddle 38 can throw the generated rock fragments into the interior of the conveying cylinder 39.

[0052] Several groups of axial loading structures 9 are arranged on the inner top surface of the main frame 4, and the axial loading structure 9 includes a multi-stage electric telescopic rod 1 47, which is arranged on the inner top surface of the main frame 4, one end of the multi-stage electric telescopic rod 1 47 is rotatably connected to a bottom plate 1 48, and both ends of the bottom plate 1 48 are rotatably connected to a bottom plate 2 49, one end of the multi-stage electric telescopic rod 1 47 is externally rotatably connected to two multi-stage electric telescopic rods 2 50, and one end of the multi-stage electric telescopic rod 2 50 is rotatably connected to the top of the bottom plate 2 49, two square holes are provided on the top of the bottom plate 1 48 and the bottom plate 2 49, and the inner sides of the front and rear parts of the bottom plate 1 48 and the bottom plate 2 49 are slidably provided with a bottom plate 3 51, and the tops of the bottom plate 1 48 and the bottom plate 2 49 are provided with two multi-stage electric telescopic rods 3 52, and one end of the multi-stage electric telescopic rod 3 52 is fixedly connected to the bottom plate 3 51 at the corresponding position.

[0053] The axial loading structure 9 can load the rock formation inside the main frame 4 so that the rock formation can be compacted.

[0054] A shaping structure 10 is arranged on the top of one group of confining pressure loading mechanisms 7, and the shaping structure 10 includes a hollow frame 53, which is fixedly arranged on the top of the confining pressure loading mechanism 7, and a reciprocating screw 54 is rotatably arranged on the inner side of the hollow frame 53, one end of the reciprocating screw 54 passes through the inner side of the hollow frame 53 and is fixedly connected to the output shaft of a motor 7 55, and a slider 2 56 is slidably arranged on the outside of the reciprocating screw 54, and a multi-stage electric telescopic rod 4 57 is fixedly arranged on the rear part of the slider 2 56, one end of the multi-stage electric telescopic rod 4 57 is arranged with an L-shaped plate, and a motor 8 58 is arranged on the top of the L-shaped plate, and the output shaft of the motor 8 58 passes through the top of the L-shaped plate and is fixedly connected to the multi-stage electric telescopic rod 5 59, and one end of the multi-stage electric telescopic rod 59 is fixedly connected to a scraper 60.

[0055] The shaping structure 10 can shape the rock formation inside the main frame 4 .

[0056] A reserved component is arranged on the inner side of the main frame 4, and the reserved component consists of a head box body 42, a tail box body 43, a plurality of connecting box bodies 44, a plurality of opening and closing plates 45 and a plurality of hydraulic cylinders 46. The head box body 42, the tail box body 43 and the connecting box bodies 44 at corresponding positions are rotatably connected, and two adjacent connecting box bodies 44 are rotatably connected. The head box body 42, the tail box body 43 and one side of the connecting box body 44 are rotatably provided with an opening and closing plate 45, and the inside of the head box body 42, the tail box body 43 and the connecting box body 44 are rotatably provided with a hydraulic cylinder 46, and the other end of the hydraulic cylinder 46 is rotatably connected to the opening and closing plate 45.

[0057] The reserved component is connected to an external suction device, which, together with the transmission component, can process the rock fragments produced by mining.

[0058] A transmission component is arranged on the outside of the slide frame 30, and the transmission component includes a transmission cylinder 39, which is fixedly connected to the slide frame 30 through two connecting plates. A transmission paddle 40 is rotatably arranged on the inner side of the transmission cylinder 39, and one end of the transmission paddle 40 passes through the inner end of the transmission cylinder 39 and is fixedly connected to the output shaft of the motor 6 41, and the protective plate 31 is fixedly connected to the connecting plate.

[0059] Under the action of the motor 6 41, the conveying paddle 40 conveys the rock fragments inside the conveying cylinder 39.

[0060] One end of the main frame 4 is provided with a plurality of threaded holes, and a plurality of baffles 5 are movably arranged on the inner side of one end of the main frame 4, and both ends of the baffles 5 are connected with screws 6 through threads, the threads of the screws 6 are adaptively matched with the threads of the threaded holes of the main frame 4, the displacement gear 1 20 and the rack plate 1 14 are meshing adaptively matched, and the displacement gear 2 23 and the rack plate 2 15 are meshing adaptively matched.

[0061] The baffle 5 blocks one end of the main frame 4 .

[0062] It should be noted that when the present invention is used, the experimental device can be placed in a required place. Before starting the experiment, the front and rear parts of the main frame 4 are blocked by the confining pressure loading mechanism 7, and then the baffle 5 is fixed to the inner side of the main frame 4 by screws 6, so that the four sides and the bottom of the main frame 4 are blocked, and the material is poured from the feed port of the weighing and stirring mechanism 2. The material is first weighed and added according to the amount of material required for each rock layer simulation inside the main frame 4. Then, the weighed material enters the stirring barrel for stirring. After stirring, the material enters the inside of the feeding mechanism 3 through the material transfer pipe, and the material enters the inside of the main frame 4 through the feeding mechanism 3;

[0063] After the first layer of rock material is poured in, the multi-stage electric telescopic rod 59 is started to act on the scraper 60 to move toward the inner bottom of the main frame 4 to a preset interval and then stop, and then the motor 7 55 is started to act on the reciprocating screw 54 to rotate, so that the slider 2 56 reciprocates outside it, thereby causing the scraper 60 to shape the first layer of rock material. After shaping, the scraper 60 is retracted through the multi-stage electric telescopic rod 59, and then the motor 8 58 is used to rotate the multi-stage electric telescopic rod 59 90 degrees. After that, the scraper 60 stops. At this time, the scraper 60 is parallel to the reciprocating screw rod 54. The scraper 60 is then retracted by the multi-stage electric telescopic rod 4 57, so that the scraper 60 leaves the inner side of the main frame 4. Then, the multi-stage electric telescopic rod 1 47 is started so that one end thereof brings the bottom plate 1 48, the bottom plate 2 49 and the multi-stage electric telescopic rod 2 50 to press down toward the shaped rock layer for loading. The rock layer becomes more compact after being loaded. After the rock layer is compacted, the multi-stage electric telescopic rod 1 47 is retracted. Then, A layer of mica powder is laid on the surface of the rock layer just pressed, and then a monitoring network layer is installed in the upper space of the mica powder. Then the above operation is repeated to stack several rock layers. Mica powder and monitoring network layers are laid between each rock layer. After laying to a certain height, two steel plate tracks are placed at the predetermined position of the rock layer, and then two protective shells are placed on the corresponding steel plate tracks. Then a protective cover is installed at the gap of the storage box 25 to seal it. When the rock layer buries the protective shell, a steel plate track is placed on the rock layer on the upper left of one of the protective shells, and then a reserved component is placed on the steel plate track, and the opening of the head box body 42 of the reserved component is closed by the protective cover, and then a steel plate track is placed on the top of the reserved component. At this time, the gap at the connection of the reserved component is blocked by the two steel plate components, and the rock layer stacking, shaping and loading operations are repeated until the rock layer is stacked to a predetermined number of layers and then stopped. At this time, the protective shell and the reserved component are submerged by the rock layer;

[0064] In addition, according to the need for the rock formation to form a wrinkled shape, several multi-stage electric telescopic rods 47 are started and extended, so that several groups of axial loading structures 9 form a falling parabola shape, and then the multi-stage electric telescopic rods 2 50 of each group of axial loading structures 9 are started, so that the multi-stage electric telescopic rods 2 50 act on the corresponding bottom plate 2 49 to flip up and down in opposite directions, so that the bottom plate 1 48 and the two bottom plates 2 49 form an overall tilted state, and the bottom plates 1 48 and the bottom plates 2 49 of the several groups of axial loading structures 9 that have been adjusted can form a curved surface shape of a falling parabola, and then the several groups of axial loading structures 9 are uniformly pressed down by the multi-stage electric telescopic rods 1 47, so that the rock formation forms a wrinkled shape, and after loading, the surface is also smoothed by the scraper 60. It should be noted that the axial loading structure 9 is not only capable of forming a falling parabola shape, but can also form a continuous wave shape for loading according to experimental needs;

[0065] When the axial loading structure 9 is required to work in a place where there is a protective shell and reserved components, the bottom plate 3 51 is retracted to the inner side of the bottom plate 1 48 and the bottom plate 2 49 at the corresponding position by the multi-stage electric telescopic rod 3 52 to avoid damage to the protective shell and the reserved components during loading. After the rock layer submerges the protective shell and the reserved components, the bottom plate 3 51 is extended out by the multi-stage electric telescopic rod 3 52 to work;

[0066] According to the position of the rock stratum where the protective shell and the reserved component are buried, the baffle 5 at the corresponding position is removed by screws 6, and then a part of the rock stratum at the corresponding position is dug up by the existing mining equipment on the market, and then the generated rock fragments are taken out, so that the storage box 25 of the protective shell and the opening of the head box body 42 of the reserved component are exposed, and then the protective covers of the storage box 25 and the head box body 42 are opened, and then the serrated plate 29 is fixed to the inner side of the storage box 25 by bolt fasteners 26. At this time, the mining component and the transmission component are installed on the two protective shells. Since a part of the space has been mined, start motor 1 21 and motor 2 24 to make the tank track move on the inner side of the protective shell. The tank track acts on the mining component and the transmission component to move forward as a whole to the predetermined position and then stops. Since the setting of the protective plate 31 can support the upper rock stratum to prevent its collapse from causing damage to the device, start the hydraulic cylinder 46 to act on the opening and closing plate 45 of the head box body 42 to rotate inward and open it. At this time, an external suction device is connected to the opening of the head box body 42, and start The motor 4 35 is driven to make it act on the excavation mechanism 36 to rotate and dig the rock layer, and then the motor 33 is started to act on the gear plate 34 to rotate. The gear plate 34 is meshed with the sawtooth plate 29, so that the slider 1 32 moves on the surface of the slide bar frame 30, and finally the excavation mechanism 36 digs the horizontal rock layer where it is located. In the process, the motor 5 37 acts on the rotating paddle 38 to rotate at a high speed to carry out mining and soil throwing work, and the generated rock fragments are thrown into the interior of the conveying cylinder 39. The conveying paddle 40, under the action of the motor 6 41, produces The rock fragments are transmitted to the position of the opening and closing plate 45 just opened by the head box body 42, and the rock fragments are sucked away by the suction device. When the rock layer in the horizontal space where the excavation mechanism 36 is located is mined, the motor 1 21 and the motor 2 24 are used to make the tank track move inside the protective shell, so that the mining component and the transmission component are moved to perform mining work. In addition, the opening and closing plate 45 where the transmission paddle 40 moves to the corresponding position is opened by the hydraulic cylinder 46, and the rock fragments are sucked away by the suction device;

[0067] When a fault experiment is required, similar materials prepared according to similar proportions are poured into the inner side of the main frame 4, and then the similar materials prepared according to similar proportions are scraped to one side of the inner side of the main frame 4 by using a scraper 60, and two multi-stage electric telescopic rods 2 50 corresponding to a set of axial loading structures in the middle of the top of the main frame 4 are started, so that one of them acts on the corresponding bottom plate 2 49 to flip downward, and the other flips upward, and finally the bottom plate 1 48 and the two bottom plates 2 49 form an overall tilted state, and then the adjusted set of axial loading components 9 is pressed down through the multi-stage electric telescopic rod 1 47 so that it scrapes the materials to the inner side of the main frame 4. The similar materials prepared according to similar proportions on the side are blocked, and then, several groups of axial loading structures 9 at corresponding positions are pressed down toward the position with similar materials prepared according to similar proportions to load and compact them. After loading, the surface is smoothed by the scraper 60, and then the above operation is repeated to stack layer by layer. Mica powder and monitoring network are also spread between two adjacent layers. The other side of the interior of the main frame 4 is also operated in the same way, so that each rock layer on the other side of the interior of the main frame 4 is higher than the height of each rock layer on the inner side, so that the height difference of the rock layers of the same nature on both sides of the interior of the main frame 4 forms a fault;

[0068] The weighing and stirring mechanism 2, the feeding mechanism 3 and the confining pressure loading mechanism 7 mentioned above all belong to the prior art, so this case will not be elaborated in detail. At the same time, the enclosure part of the confining pressure loading mechanism 7 can be equipped with several acoustic emission probes as needed to monitor and record the data of the simulation experiment. At the same time, during the experimental stage, according to the needs of the experiment, the confining pressure loading mechanism 7 and the axial loading structure 9 can be turned on to apply stress, restore the axial and lateral stress conditions of the similar model, debug the acoustic emission and monitoring network related acquisition equipment, and start data acquisition.

Claims

1. A coal mine geological structure automatic shaping and mining similar simulation experimental device, comprising a base (1), the top of the base (1) is respectively equipped with a weighing and stirring mechanism (2) and a feeding mechanism (3), the weighing and stirring mechanism (2) is connected to the feeding mechanism (3) through a material transfer pipe, one end of the base (1) is fixedly provided with a main frame (4), the front and rear parts of the main frame (4) are both provided with a group of confining pressure loading mechanisms (7), characterized in that: A mobile mining structure (8) is arranged inside the main frame (4).

2. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 1 is characterized by: The mobile mining structure (8) comprises two protective shells, the protective shells are movably arranged on the inner side of the main frame (4), the protective shells are composed of four protective covers (11), a plurality of protective covers (12), a plurality of storage plates (13), a plurality of rack plates (14) and a plurality of rack plates (15), the protective covers (11) and the protective covers (12) are rotatably connected, the two adjacent protective covers (12) are rotatably connected, the storage plates (13) are fixedly connected to the protective covers (11) and the protective covers (12) at the corresponding positions, and the adjacent protective covers (11) and the protective covers (12) are fixedly connected to the protective covers (11) and the protective covers (12) at the corresponding positions. The two storage plates (13) are rotatably connected, the top and bottom of the storage plates (13) are fixedly provided with a rack plate 1 (14) and two rack plates 2 (15), the inner side of the protective shell is provided with a tank track, the tank track is composed of two track 1s (16), two track 2s (17) and a plurality of track 3s (18), the track 1 (16) is rotatably connected to the track 2 (17) and the track 3 (18), the track 2 (17) is rotatably connected to the track 1 (16) and the track 3 (18), and two adjacent track 3s (18) are rotatably connected.

3. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 2 is characterized by: Two groups of power components 1 and several groups of power components 2 are also arranged on the inner side of the protective shell. The power component 1 is composed of a storage rack 1 (19), two displacement gears 1 (20), two motors 1 (21), two storage racks 2 (22), four displacement gears 2 (23) and four motors 2 (24). The power component 2 is composed of two storage racks 2 (22), four displacement gears 2 (23), four motors 2 (24) and a connecting frame (28). Two displacement gears 1 (20) are rotatably arranged on the inner side of the storage rack 1 (19), and one end of the displacement gear 1 (20) passes through the inner side of the storage rack 1 (19) and is fixedly connected to the output shaft of the motor 1 (21). Two displacement gears 2 (23) are rotatably arranged on the inner side of the storage rack 2 (22). ), and one end of the displacement gear 2 (23) passes through the inner side of the storage rack 2 (22) and is fixedly connected to the output shaft of the motor 2 (24), the storage rack 1 (19) and the storage rack 2 (22) are fixedly connected, a storage box (25) is fixedly arranged on the top of the storage rack 1 (19) of one group of power components 1, the top of the storage box (25) passes through one of the crawlers 1 (16), and the storage box (25) is connected with four bolt fasteners (26) through threads, the storage rack 1 (19) of another group of power components 1 is fixedly connected to the other crawler 1 (16) through a fixing block (27), and the two storage racks 2 (22) of the power components 2 are fixedly connected through a connecting frame (28), and the connecting frame (28) is fixedly connected to the crawler 3 (18) at the corresponding position.

4. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 3 is characterized by: A mining assembly is arranged on the inner side of the main frame (4), and the mining assembly includes a sawtooth plate (29). The sawtooth plate (29) is movably arranged on the inner side of the main frame (4), and four threaded holes are provided at both ends of the bottom of the sawtooth plate (29). The two ends of the bottom of the sawtooth plate (29) are respectively plugged with two storage boxes (25), and the threads of the bolt fasteners (26) and the threads of the threaded holes of the sawtooth plate (29) are adaptively matched. A sliding rod frame (30) is fixedly arranged on the top of the sawtooth plate (29), and a protective plate (31) is fixedly connected to the top of the sliding rod frame (30). The outer sliding portion of the sliding rod frame (30) is provided with a A slider (32), one end of which is provided with a motor (33), the output shaft of the motor (33) passes through one end of the slider (32) and is fixedly connected to a gear plate (34), and the gear plate (34) is meshingly connected to a sawtooth plate (29), a motor (35) is provided at the top of the slider (32), the output shaft of the motor (35) passes through the top of the slider (32) and is fixedly connected to an excavation mechanism (36), and a motor (37) is provided at the other end of the slider (32), the output shaft of the motor (37) passes through the other end of the slider (32) and is fixedly connected to a rotating paddle (38).

5. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 4 is characterized by: The inner top surface of the main frame (4) is provided with a plurality of groups of axial loading structures (9), the axial loading structures (9) comprising a multi-stage electric telescopic rod (47), the multi-stage electric telescopic rod (47) being provided on the inner top surface of the main frame (4), one end of the multi-stage electric telescopic rod (47) being rotatably connected to a bottom plate (48), both ends of the bottom plate (48) being rotatably connected to a bottom plate (49), one end of the multi-stage electric telescopic rod (47) being externally rotatably connected to two multi-stage electric telescopic rods (5 0), and one end of the multi-stage electric telescopic rod 2 (50) is rotatably connected to the top of the bottom plate 2 (49), the tops of the bottom plate 1 (48) and the bottom plate 2 (49) are both provided with two square holes, and the inner sides of the front and rear parts of the bottom plate 1 (48) and the bottom plate 2 (49) are both slidably provided with a bottom plate 3 (51), and the tops of the bottom plate 1 (48) and the bottom plate 2 (49) are both provided with two multi-stage electric telescopic rods 3 (52), and one end of the multi-stage electric telescopic rod 3 (52) is fixedly connected to the bottom plate 3 (51) at the corresponding position.

6. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 5 is characterized by: A shaping structure (10) is arranged on the top of one group of confining pressure loading mechanisms (7), and the shaping structure (10) comprises a hollow frame (53), the hollow frame (53) is fixedly arranged on the top of the confining pressure loading mechanism (7), a reciprocating screw (54) is rotatably arranged on the inner side of the hollow frame (53), one end of the reciprocating screw (54) passes through the inner side of the hollow frame (53) and is fixedly connected to the output shaft of the motor seven (55), a slider two (56) is slidably arranged on the outside of the reciprocating screw (54), a multi-stage electric telescopic rod four (57) is fixedly arranged at the rear of the slider two (56), one end of the multi-stage electric telescopic rod four (57) is arranged with an L-shaped plate, and a motor eight (58) is arranged on the top of the L-shaped plate, the output shaft of the motor eight (58) passes through the top of the L-shaped plate and is fixedly connected to the multi-stage electric telescopic rod five (59), and one end of the multi-stage electric telescopic rod five (59) is fixedly connected to a scraper (60).

7. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 5 is characterized by: A reserved component is arranged on the inner side of the main frame (4), and the reserved component is composed of a head box body (42), a tail box body (43), a plurality of connecting box bodies (44), a plurality of opening and closing plates (45) and a plurality of hydraulic cylinders (46). The head box body (42), the tail box body (43) and the connecting box bodies (44) at corresponding positions are rotatably connected, and two adjacent connecting box bodies (44) are rotatably connected. The opening and closing plates (45) are rotatably arranged on one side of the head box body (42), the tail box body (43) and the connecting box body (44). The insides of the head box body (42), the tail box body (43) and the connecting box body (44) are rotatably arranged with hydraulic cylinders (46), and the other ends of the hydraulic cylinders (46) are rotatably connected to the opening and closing plates (45).

8. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 5 is characterized by: A transmission component is arranged outside the slide rod frame (30), and the transmission component includes a transmission cylinder (39), and the transmission cylinder (39) is fixedly connected to the slide rod frame (30) through two connecting plates. A transmission paddle (40) is rotatably arranged inside the transmission cylinder (39), and one end of the transmission paddle (40) passes through the inner end of the transmission cylinder (39) and is fixedly connected to the output shaft of motor six (41), and the protective plate (31) is fixedly connected to the connecting plate.

9. The automatic shaping and mining similarity simulation experimental device for coal mine geological structure according to claim 5 is characterized by: A plurality of threaded holes are provided at one end of the main frame (4), a plurality of baffles (5) are movably provided inside one end of the main frame (4), and screws (6) are connected to both ends of the baffles (5) via threads, the threads of the screws (6) are adaptively matched with the threads of the threaded holes of the main frame (4), the displacement gear 1 (20) and the rack plate 1 (14) are meshingly adaptively matched, and the displacement gear 2 (23) and the rack plate 2 (15) are meshingly adaptively matched.

10. A method for using the coal mine geological structure automatic shaping and mining similarity simulation experimental device according to any one of claims 1 to 9, characterized in that: The method of use specifically includes the following steps: Step 1: Before starting the experiment, the front and rear parts of the main frame (4) are blocked by the confining pressure loading mechanism (7), and then the baffle (5) is fixed to the inner side of the main frame (4) by screws (6), so that the four sides and the bottom of the main frame (4) are blocked, and the material is poured in from the feed port of the weighing and stirring mechanism (2). The material is first weighed and added according to the amount of material required for each rock layer simulation inside the main frame (4). Then, the weighed material enters the stirring barrel for stirring. After stirring, the material enters the inside of the feeding mechanism (3) through the material transfer pipe, and the material enters the inside of the main frame (4) through the feeding mechanism (3); Step 2: After the first layer of rock material is poured in, the multi-stage electric telescopic rod 5 (59) is started to act on the scraper (60) to move toward the inner bottom of the main frame (4) to a preset interval and then stop, and then the motor 7 (55) is started to act on the reciprocating screw (54) to rotate, so that the slider 2 (56) moves back and forth outside it, and then the scraper (60) shapes the first layer of rock material. After shaping, the scraper (60) is retracted through the multi-stage electric telescopic rod 5 (59), and then the multi-stage electric telescopic rod 8 (58) is used to make the multi-stage electric telescopic rod 5 (59) move back and forth. The telescopic rod 5 (59) rotates 90 degrees and then stops. At this time, the scraper (60) is parallel to the reciprocating screw rod (54). The scraper (60) is then retracted by the multi-stage electric telescopic rod 4 (57), so that the scraper (60) leaves the inner side of the main frame (4). Then, the multi-stage electric telescopic rod 1 (47) is started so that one end of the multi-stage electric telescopic rod 1 (47) brings the bottom plate 1 (48), the bottom plate 2 (49) and the multi-stage electric telescopic rod 2 (50) to press down on the shaped rock formation to perform loading work, so that the rock formation becomes more compact after being loaded, and the rock formation is After compaction, the multi-stage electric telescopic rod (47) is folded up, and then a layer of mica powder is spread on the surface of the rock layer just compacted, and then a monitoring network layer is installed in the upper space of the mica powder. Then the above operation is repeated to stack several rock layers. Mica powder and monitoring network layers are spread between each rock layer. After laying to a certain height, two steel plate crawlers are placed at the predetermined position of the rock layer, and then two protective shells are placed on the corresponding steel plate crawlers. Then, a protective cover is installed at the gap of the storage box (25) to make it sealed. When the rock is After the protective shell is buried by the layers, a steel plate crawler is placed on the rock layer on the upper left of one of the protective shells, and then the reserved component is placed on the steel plate crawler, the opening of the head box body (42) of the reserved component is closed by the protective cover, and then a steel plate crawler is placed on the top of the reserved component. At this time, the gap at the connection of the reserved component is blocked by the two steel plate components, and the rock layer stacking, shaping and loading operations are repeated until the rock layer is stacked to a predetermined number of layers, and then the protective shell and the reserved component are submerged by the rock layer; Step 3: According to the position of the rock layer where the protective shell and the reserved component are buried, the baffle (5) at the corresponding position is removed by screws (6), and then a part of the rock layer at the corresponding position is dug up by the existing mining equipment on the market, and then the generated rock fragments are taken out, so that the storage box (25) of the protective shell and the opening of the head box body (42) of the reserved component are exposed, and then the protective covers of the storage box (25) and the head box body (42) are opened, and then the serrated plate (29) is fixed to the inner side of the storage box (25) by bolt fasteners (26). At this time, the mining component and The transmission component is installed on two protective shells. Since a part of the space has been mined, the motor 1 (21) and the motor 2 (24) are started to make the tank tracks move inside the protective shell. The tank tracks act on the mining component and the transmission component to move forward as a whole to a predetermined position and then stop. Due to the setting of the protective plate (31), the upper rock layer can be supported to prevent its collapse and damage to the device. The hydraulic cylinder (46) is started to act on the opening and closing plate (45) of the head box body (42) to rotate inward and open. At this time, a suction device is connected to the opening of the head box body (42). The motor 4 is started. (35) so that it acts on the excavation mechanism (36) to rotate and dig up the rock layer, and then the motor three (33) is started to act on the gear plate (34) to rotate, and the gear plate (34) is meshed with the sawtooth plate (29), so that the slider one (32) moves on the surface of the slide rod frame (30), and finally the excavation mechanism (36) digs up the horizontal rock layer where it is located. During the process, the motor five (37) acts on the rotating paddle (38) to rotate at high speed to carry out mining and soil throwing work, and the generated rock fragments are thrown into the interior of the conveying cylinder (39). The conveying paddle (40) is driven by the motor six (41) The generated rock fragments are then transferred to the position of the opening and closing plate (45) of the head box body (42) that has just been opened, and the rock fragments are sucked away by the suction device. When the rock layer in the horizontal space where the excavation mechanism (36) is located is mined, the tank tracks are moved on the inner side of the protective shell by motor 1 (21) and motor 2 (24), thereby moving the mining component and the transmission component to perform mining work. In addition, the transmission paddle (40) moves to the opening and closing plate (45) at the corresponding position, which is opened by the hydraulic cylinder (46), and the rock fragments are sucked away by the suction device.

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