Underground coal mine geological exploration reaming equipment

Abstract

The invention relates to the technical field of underground coal mine geological exploration, in particular to underground coal mine geological exploration reaming equipment which comprises four supporting legs, a supporting plate is welded to the tops of the four supporting legs, two hydraulic cylinders are fixed to the top of the supporting plate, a link plate is fixed to the outer sides of the output ends of the two hydraulic cylinders, and a cylinder is fixed to the inner side of the link plate. By adopting the drilling-out assembly, the adjusting assembly and the power assisting assembly, punching, reaming and soil discharging can be conducted at the same time, the power assisting frame can be used for assisting soil transportation of the auger frame, compared with the prior art, the punching and reaming cost can be reduced, soil discharging can be conducted at the same time, the working efficiency is improved, and the practicability is high. In addition, assistance can be provided for the auger frame to transport soil, the efficiency of the auger frame to discharge the soil is improved, pressure and resistance caused by gradual accumulation of the soil to the reaming device are reduced, and the reaming and hole forming efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of underground coal mine geological exploration, in particular to underground coal mine geological exploration hole expanding equipment. Background Art

[0002] The underground coal mine geological exploration hole expansion equipment can expand the borehole diameter, so that larger core samples can be obtained when taking cores. Some advanced geological detection instruments require a large space to be lowered into the underground borehole. The hole expansion equipment can expand the borehole diameter, provide sufficient lowering space for these detection instruments, increase the ventilation volume underground, reduce the concentration of harmful gases such as gas, reduce the accumulation of dust, and provide a safer working environment for miners. The larger diameter borehole can provide more space for the installation of underground support equipment. The expanded borehole can be used as a channel for other underground projects, such as cable laying, pipeline installation, etc. This can reduce the difficulty and cost of construction and improve engineering efficiency.

[0003] The Chinese patent with publication number CN117328815A discloses a hole expansion device for underground coal mine geological exploration, which solves the problems of easy use, simple operation, and the ability to quickly drill holes of different diameters; The Chinese patent with publication number CN112324341B discloses a hole reaming device for underground coal mine geological exploration. The device is provided with a hole reaming cylinder assembly in cooperation with a driving assembly and an adjusting assembly. The driving motor drives the driving gear, and the driving gear drives the driven gear 2 to rotate the hollow rod. Then, through the limit pulley groove and the limit pulley, the three groups of arc blocks are synchronously moved outward to adjust the hole reaming diameter. There is no need for construction personnel to frequently stop the machine to replace the hole reaming head. On the one hand, it greatly improves work efficiency, and on the other hand, it greatly reduces the intensity of manual labor.

[0004] The existing underground coal mine geological exploration and hole expansion equipment generally uses a specific hole expansion tool to operate after the drilling is completed or during the drilling process. The soil discharge mainly discharges the broken rock or soil from the hole during the drilling process to ensure the smooth drilling. Multiple equipment are required to cooperate in multiple processes for drilling, hole expansion and soil discharge, which reduces the efficiency of hole forming. In addition, as the drilling and hole expansion proceed, more and more soil needs to be discharged as the depth increases, the pressure on the bottom of the auger will become greater and greater, the efficiency of the auger to discharge soil becomes lower, and the gradual accumulation of soil causes pressure and resistance to the hole expansion device, reducing the efficiency of hole expansion and hole forming.

[0005] Therefore, an underground coal mine geological exploration hole expansion equipment is needed to solve the problem that drilling, hole expansion and soil discharge are difficult to carry out simultaneously, and the efficiency of the auger frame to discharge soil becomes low, which reduces the efficiency of hole expansion and hole forming. Summary of the invention

[0006] In order to solve the problem that multiple devices need to cooperate in multiple processes to perform drilling, hole expansion and soil discharge, the gradual accumulation of soil causes pressure and resistance on the hole expansion device, and the efficiency of hole expansion and hole forming is low, the present application provides an underground coal mine geological exploration hole expansion equipment.

[0007] The technical solution of the present invention is: an underground coal mine geological exploration and hole expanding equipment, including four legs, the tops of the four legs are welded with support plates, the tops of the support plates are fixed with two hydraulic cylinders, the outer sides of the output ends of the two hydraulic cylinders are fixed with link plates, and the inner sides of the link plates are fixed with cylinders.

[0008] Specifically, a bottom plate is fixed to the inner side of the bottom of the four legs, four limiting rods are fixed to the top of the bottom plate, the four limiting rods are located on the side of the four legs close to the cylinder, and the link plate is sleeved on the outer side of the four limiting rods.

[0009] Specifically, the drilling assembly is arranged on the inner side of the cylinder, and is equipped to transport the soil for expanding and drilling holes by rotating the auger frame driven by a motor, and to drill holes by rotating the drill bit driven by a motor; the drilling assembly includes a motor and an auger frame, the motor is fixed to the top of the cylinder, the top of the auger frame is fixed to the outside of the output end of the motor, the auger frame is located on the inner side of the cylinder, the drill bit is fixed to the bottom of the auger frame, a conveying hole is opened on the top of the drill bit, a bump is welded on the outside of the drill bit, an inclined hole is opened through the outside of the drill bit, and the inclined hole and the conveying hole are connected.

[0010] Specifically, an outlet hole is formed through the outer side of the top end of the cylinder.

[0011] Specifically, an inner groove is opened inside the bottom end of the auger frame, the pressure rod is installed on the outer side of the output end of the cylinder, and four support plates are welded on the inner side of the inner groove.

[0012] Specifically, the cylinder is arranged on the inner side of the bottom of the auger frame, and is assembled to provide power for the movement of the adjusting assembly through the pressure rod; the adjusting assembly is arranged on the inner side of the bottom end of the auger frame, and is assembled to drive the four arc plates to move synchronously to the side away from the center rod by cooperating with the extension of the output end of the cylinder, or to drive the four arc plates to move synchronously to the side close to the center rod by cooperating with the contraction of the output end of the cylinder; the adjusting assembly includes four arc plates, and the four arc plates are placed at the bottom of the cylinder. The four arc plates are of the same size and are arranged in a ring shape with the auger frame as the axis. A convex knife is fixed on the side of the four arc plates away from the auger frame, and a group of side plates are respectively fixed on the side of the four arc plates close to the auger frame, and two side plates form a group. Four side holes are opened through the outer side of the auger frame, and the four side holes have different heights but the same size, and a group of side plates are respectively placed on the inner sides of the four side holes.

[0013] Specifically, a column plate is welded to the side away from the arc plate of each group of side plates, a convex plate is placed on the inner side of each column plate, a pressure plate is welded to the side away from the column plate of each convex plate, the four pressure plates are respectively located on the inner sides of the four support plates, guide plates are welded to the bottoms of the three pressure plates close to the pressure rod, the three guide plates fix the four pressure plates in connection, a central axis is fixed to the top of the bottom wall of the inner groove, the top of the central axis is fixedly connected to the inner side of the inner groove, and the top of the central axis is located on the inner side of the bottom of the pressure rod, the four pressure plates are mounted on the outer side of the central rod, and the bottom of the pressure rod is welded to the top of the pressure plate close to the cylinder.

[0014] Specifically, the power-assisting component is arranged on the inner side of the adjusting component, and is equipped to assist soil transportation by transmitting the force of the rotation of the auger frame to the power-assisting frame; the power-assisting component includes a bottom groove, which is opened at the bottom of the cylinder, and teeth are fixed on the side of the bottom groove close to the outer side of the cylinder, and four gears are placed on the inner side of the bottom groove, and the four gears are placed at an interval of ninety degrees with the auger frame as the center, and the four gears are all meshed with the gears, and transmission rods are fixed on the inner sides of the four gears, and limiting plates are fixed on the outer sides of the four transmission rods, and the limiting plates are located at the bottom of the four gears, and the limiting plates are located on the inner side of the bottom of the cylinder, and the four arc-shaped plates are close to the auger frame. A protective box is fixed on one side, the bottom of each transmission rod is located on the inner side of the protective box, and a power-assisting frame is installed through the four protective boxes on one side close to the auger frame. A sealing plate is rotatably installed on the outer side of the other end of the four power-assisting frames, and the four sealing plates are respectively welded to the inner sides of the four side holes. Another bevel gear is fixed on one end of the four power-assisting frames located on the protective box, and the two bevel gears located on the inner side of the same protective box are meshed. A guide rod is welded on the side of each arc plate close to the auger frame, and the other ends of the four guide rods are welded to the side of the column plate at the same height away from the center axis, and the four power-assisting frames are mounted on the outer sides of the four guide rods.

[0015] The beneficial effects of the present invention are as follows: (1) The underground coal mine geological exploration and hole expansion equipment described in the present invention adopts a drilling component, an adjustment component and a power-assisting component, which can not only perform drilling, hole expansion and soil discharge at the same time, but also use a power-assisting frame to assist the auger frame in transporting soil. Compared with the prior art, the present invention can reduce the cost of drilling and hole expansion, and can also discharge soil at the same time, thereby improving work efficiency. It can also provide assistance for the auger frame to transport soil, speed up the efficiency of the auger frame to discharge soil, reduce the pressure and resistance caused by the gradual accumulation of soil on the hole expansion device, and speed up the efficiency of hole expansion and hole forming.

[0016] (2) The underground coal mine geological exploration and hole expansion equipment described in the present invention adopts a power-assisting component, which drives the power-assisting frame to rotate through the existing power structure. The power-assisting frame pushes the soil in the direction of soil rising, which not only speeds up the efficiency of soil transportation, but also reduces the pressure on the auger frame deep in the hole, thereby increasing the service life of the auger frame.

[0017] (3) The underground coal mine geological exploration hole expansion equipment described in the present invention adopts an adjustment component, which drives the four arc plates to move simultaneously through the extension and retraction of the cylinder, and controls the moving distance of the four arc plates through the extension and retraction degree of the output end of the cylinder, thereby achieving the purpose of controlling the hole expansion diameter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure of the underground coal mine geological exploration and hole expansion equipment provided by the present invention; Figure 2 The overall cross-sectional schematic diagram of the underground coal mine geological exploration hole expansion equipment provided by the present invention; Figure 3 A front structural schematic diagram of the underground coal mine geological exploration and hole expansion equipment provided by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the cylinder of the underground coal mine geological exploration hole expansion equipment provided by the present invention; Figure 5 A schematic diagram of a cross section of a cylinder of an underground coal mine geological exploration expansion device provided by the present invention Figure 1 ; Figure 6 A schematic diagram of the top of the power-assisting frame of the underground coal mine geological exploration and hole-exploring equipment provided by the present invention; Figure 7 A schematic diagram of a cross section of a cylinder of an underground coal mine geological exploration expansion device provided by the present invention Figure 2 ; Figure 8 for Figure 7 A magnified image of point A; Fig. 9 for Figure 7 The enlarged view of point B; Fig.10 A schematic diagram of the three-dimensional structure of the arc plate of the underground coal mine geological exploration hole expansion equipment provided by the present invention; Fig.11 A schematic cross-sectional view of an adjustment assembly of an underground coal mine geological exploration hole expansion device provided by the present invention; Fig.12 A schematic diagram of the three-dimensional structure of the adjustment assembly of the underground coal mine geological exploration and hole expansion equipment provided by the present invention; Fig.13 A schematic diagram of the three-dimensional structure of the protection box of the underground coal mine geological exploration and hole expansion equipment provided by the present invention.

[0020] In the figure: 11, outrigger; 12, support plate; 13, bottom plate; 14, limiting rod; 15, hydraulic cylinder; 16, link plate; 17, cylinder; 171, outlet hole; 2, drilling assembly; 21, motor; 23, auger frame; 231, support plate; 24, drill bit; 241, bump; 242, inclined hole; 243, conveying hole; 3, adjustment assembly; 31, inner groove; 311, side hole; 32, cylinder; 33, pressure rod; 34, center rod; 35, pressure plate; 351, guide plate; 352, convex plate; 36, column plate; 37, side plate; 38, arc plate; 39, convex knife; 4, power assist assembly; 41, bottom groove; 42, gear; 43, transmission rod; 44, limiting plate; 45, protective box; 46, guide rod; 47, power assist frame; 48, sealing plate. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0022] Example: Figure 1-Figure 13 As shown, an embodiment of the present invention provides an underground coal mine geological exploration and hole expanding equipment, including four legs 11, the tops of the four legs 11 are welded with support plates 12, the tops of the support plates 12 are fixed with two hydraulic cylinders 15, the outer sides of the output ends of the two hydraulic cylinders 15 are fixed with link plates 16, and the inner side of the link plates 16 is fixed with a cylinder 17.

[0023] In this embodiment, before using this device, the staff assembles and places the device at the drilling location, places the drilling location inside the circular hole in the center of the bottom plate 13, and aligns the drill bit 24 with the drilling location in the vertical direction, preparing for subsequent work.

[0024] Furthermore, a bottom plate 13 is fixed to the inner side of the bottom of the four legs 11 , and four limiting rods 14 are fixed to the top of the bottom plate 13 . The four limiting rods 14 are located on one side of the four legs 11 close to the cylinder 17 , and the link plate 16 is sleeved on the outer side of the four limiting rods 14 .

[0025] In this embodiment, four limiting rods 14 are used to limit the movement trajectory of the link plate 16 .

[0026] Furthermore, the drilling assembly 2 is arranged on the inner side of the cylinder 17, and is equipped to transport the soil for expanding and drilling holes by driving the auger frame 23 to rotate through the motor 21, and to drill holes by driving the drill bit 24 to rotate through the motor 21; the drilling assembly 2 includes a motor 21 and an auger frame 23, the motor 21 is fixed to the top of the cylinder 17, the top of the auger frame 23 is fixed to the outside of the output end of the motor 21, the auger frame 23 is located on the inner side of the cylinder 17, the drill bit 24 is fixed to the bottom of the auger frame 23, a conveying hole 243 is opened on the top of the drill bit 24, a bump 241 is welded on the outside of the drill bit 24, an inclined hole 242 is opened through the outside of the drill bit 24, and the inclined hole 242 and the conveying hole 243 are connected.

[0027] Furthermore, an outlet hole 171 is formed through the outer side of the top end of the cylinder 17 .

[0028] In this embodiment, the staff starts the motor 21, the motor 21 drives the auger frame 23 and the drill bit 24 to rotate, and then controls the output ends of the two hydraulic cylinders 15 to extend, and the output ends of the two hydraulic cylinders 15 drive the link plate 16 to move to the side close to the bottom plate 13, and the link plate 16 drives the cylinder 17, the motor 21, the auger frame 23 and the drill bit 24 to move to the side close to the bottom plate 13. When the drill bit 24 enters below the ground, the drill bit 24 impacts and crushes the soil through the outer protrusion 241 to drill holes. The crushed soil enters the inner side of the four arc plates 38 through the inclined hole 242 and the conveying hole 243 under the action of the ground, and then the auger frame 23 drives the crushed soil to lift from the inner side of the four arc plates 38, and then passes through the inner side of the cylinder 17 and is discharged from the outlet hole 171 to be accumulated on the top of the bottom plate 13. The crushed soil is discharged while drilling holes, which speeds up the efficiency of drilling and hole forming.

[0029] Furthermore, an inner groove 31 is formed inside the bottom end of the auger frame 23 , a pressure rod 33 is installed on the outer side of the output end of the cylinder 32 , and four support plates 231 are welded on the inner side of the inner groove 31 .

[0030] Furthermore, the cylinder 32 is arranged on the inner side of the bottom of the auger frame 23, and is equipped to provide power for the movement of the adjustment component 3 through the pressure rod 33; the adjustment component 3 is arranged on the inner side of the bottom end of the auger frame 23, and is equipped to drive the four arc plates 38 to move synchronously to the side away from the center rod 34 by the extension of the output end of the cylinder 32, or to drive the four arc plates 38 to move synchronously to the side close to the center rod 34 by the contraction of the output end of the cylinder 32; the adjustment component 3 includes four arc plates 38, and the four arc plates 38 are placed Placed at the bottom of the cylinder 17, the four arc plates 38 are of the same size, and the four arc plates 38 are placed in a ring shape with the auger frame 23 as the axis, and a convex knife 39 is fixed on the side of the four arc plates 38 away from the auger frame 23, and a group of side plates 37 are respectively fixed on the side of the four arc plates 38 close to the auger frame 23, and two side plates 37 form a group, and four side holes 311 are opened through the outer side of the auger frame 23, and the four side holes 311 have different heights but the same size, and a group of side plates 37 are respectively placed on the inner sides of the four side holes 311.

[0031] Furthermore, a column plate 36 is welded to the side of each group of side plates 37 away from the arc plate 38, a convex plate 352 is placed on the inner side of each column plate 36, and a pressure plate 35 is welded to the side of each convex plate 352 away from the column plate 36. The four pressure plates 35 are respectively located on the inner sides of the four support plates 231, and guide plates 351 are welded to the bottoms of the three pressure plates 35 close to the pressure rod 33. The three guide plates 351 fix the four pressure plates 35 together, and a central axis is fixed to the top of the bottom wall of the inner groove 31, and the top of the central axis is fixedly connected to the inner side of the inner groove 31, and the top of the central axis is located on the inner side of the bottom of the pressure rod 33. The four pressure plates 35 are sleeved on the outer side of the central rod 34, and the bottom of the pressure rod 33 is welded to the top of the pressure plate 35 close to the cylinder 32.

[0032] In this embodiment, when the four arc plates 38 enter below the ground, the four arc plates 38 drive the convex knives 39 to crush the soil under the action of the auger frame 23 and the adjustment component 3. When the four arc plates 38 completely enter below the ground, the staff controls the output ends of the two hydraulic cylinders 15 to stop extending, and then controls the output end of the cylinder 32 to extend. The output end of the cylinder 32 is moved with the pressure rod 33 to the side close to the bottom of the inner groove 31. The pressure rod 33 drives the pressure plate 35 close to the cylinder 32 to move to the side close to the bottom of the inner groove 31. The pressure plate 35 close to the cylinder 32 drives the bottom guide plate 351 to push the bottom of the pressure plate 35 close to the cylinder 32 The next pressing plate 35 moves to the side close to the bottom of the bottom groove 41, and through the same steps, the four pressing plates 35 move simultaneously along the outer side of the central axis to the side close to the bottom of the bottom groove 41, and the four pressing plates 35 push the four column plates 36 to move to the side away from the central axis, and the four column plates 36 drive the four arc plates 38 to move to the side away from the auger frame 23 through the four groups of side plates 37, and the four arc plates 38 drive the convex knives 39 to crush the soil and expand the hole. The diameter of the expanded hole is controlled by controlling the output end of the cylinder 32, so as to achieve the purpose of transporting and discharging the crushed soil while expanding the hole, thereby accelerating the efficiency of hole expansion and hole forming.

[0033] When the diameter of the expanded hole reaches the required working diameter, the staff controls the output end of the cylinder 32 to contract, and the output end of the cylinder 32 moves with the pressure rod 33 to the side away from the bottom of the inner groove 31, and the pressure rod 33 drives the pressure plate 35 close to the cylinder 32 to move to the side away from the bottom of the inner groove 31, and the pressure plate 35 close to the cylinder 32 drives the bottom guide plate 351 to push the next pressure plate 35 at the bottom of the pressure plate 35 close to the cylinder 32 to move to the side away from the bottom of the bottom groove 41. Through the same steps, the four pressure plates 35 move along the outer side of the central axis to the side away from the bottom of the bottom groove 41 at the same time, and the four pressure plates 35 pull the four column plates 36 to move to the side close to the central axis. The four column plates 36 drive the four arc plates 38 to move to the side close to the auger frame 23 through the four groups of side plates 37 and return to their original positions; After the hole is enlarged, drill and enlarge the hole again according to the above steps until the target depth is reached.

[0034] In summary, the purposes of drilling, hole expansion and soil discharge can be achieved simultaneously, which greatly accelerates the hole forming efficiency.

[0035] Furthermore, the power assist component 4 is arranged on the inner side of the adjustment component 3, and is equipped to assist soil transportation by transmitting the force of the rotation of the auger frame 23 to the power assist frame 47; the power assist component 4 includes a bottom groove 41, the bottom groove 41 is provided with the bottom of the cylinder 17, and the side of the bottom groove 41 close to the outer side of the cylinder 17 is fixed with teeth, and four gears 42 are placed on the inner side of the bottom groove, and the four gears 42 are placed at an interval of ninety degrees with the auger frame 23 as the center, and the four gears 42 are all meshed with the gears 42, and the inner sides of the four gears 42 are fixed with transmission rods 43, and the outer sides of the four transmission rods 43 are fixed with limiting plates 44, and the limiting plates 44 are located at the bottom of the four gears 42, and the limiting plates 44 are located on the inner side of the bottom of the cylinder 17, and the four arc plates 38 are close to the auger frame 23. A protective box 45 is fixed on one side of each transmission rod 43, and the bottom of each transmission rod 43 is located on the inner side of the protective box 45. A booster frame 47 is installed through the four protective boxes 45 on the side close to the auger frame 23. A sealing plate 48 is rotatably installed on the outer side of the other end of the four booster frames 47. The four sealing plates 48 are respectively welded to the inner sides of the four side holes 311. Another bevel gear 42 is fixed on one end of the four booster frames 47 located in the protective box 45, and the two bevel gears 42 located on the inner side of the same protective box 45 are meshed. A guide rod 46 is welded on the side of each arc plate 38 close to the auger frame 23, and the other ends of the four guide rods 46 are welded to the side of the column plate 36 located at the same height away from the central axis, and the four booster frames 47 are sleeved on the outer sides of the four guide rods 46.

[0036] In this embodiment, when the motor 21 drives the auger frame 23 to rotate, the auger frame 23 drives the four guide rods 46 to rotate with the auger frame 23 as the center through the four sealing plates 48, the four guide rods 46 drive the four protection boxes 45 to rotate with the auger frame 23 as the center, the four protection boxes 45 drive the four transmission rods 43 to rotate with the auger frame 23 as the center, the four transmission rods 43 drive the four gears 42 to move along the inner side of the bottom groove 41, the limiting plate 44 can provide support for the four protection boxes 45, and at the same time limit the vertical movement trajectory of the four transmission rods 43, and the four gears 42 mesh with the inner teeth of the bottom groove 41. The four transmission rods 43 are driven to rotate by the cooperation, and the four transmission rods 43 drive the four booster frames 47 to rotate along the outer side of the guide rod 46 through the bevel gear 42 inside the protection box. When crushed soil is transported inside the auger frame 23, the booster frame 47 pushes the soil in an upward direction. During the drilling and expansion process, the auger frame 23 and the booster frame 47 work synchronously. When the crushed soil is transported inside the auger frame 23, the booster frame 47 pushes the soil in an upward direction, which reduces the pressure of the auger frame 23 transporting the soil when the expansion and drilling are carried out simultaneously, and speeds up the efficiency of the auger frame 23 transporting the soil.

[0037] Working principle: The initial state is as follows Figure 1-Figure 13As shown, before using the device, the staff assembles the device and places it at the drilling location, and places the drilling location inside the circular hole in the center of the bottom plate 13, and aligns the drill bit 24 with the drilling location in the vertical direction; Then the staff starts the motor 21, which drives the auger frame 23 and the drill bit 24 to rotate, and then controls the output ends of the two hydraulic cylinders 15 to extend, and the output ends of the two hydraulic cylinders 15 drive the link plate 16 to move to the side close to the bottom plate 13, and the link plate 16 drives the cylinder 17, the motor 21, the auger frame 23 and the drill bit 24 to move to the side close to the bottom plate 13. When the drill bit 24 enters below the ground, the drill bit 24 impacts and crushes the soil through the outer protrusion 241 to punch holes. Under the action of the ground, the crushed soil enters the inner side of the four arc plates 38 through the inner side of the inclined hole 242 and the conveying hole 243, and then the auger frame 23 drives the crushed soil from the inner side of the four arc plates 38 to lift it, and then it is discharged from the outlet hole 171 through the inner side of the cylinder 17 and accumulated on the top of the bottom plate 13. When the motor 21 drives the auger frame 23 to rotate, the auger frame 23 drives the four guide rods 46 to rotate with the auger frame 23 as the center through the four sealing plates 48, the four guide rods 46 drive the four protection boxes 45 to rotate with the auger frame 23 as the center, the four protection boxes 45 drive the four transmission rods 43 to rotate with the auger frame 23 as the center, the four transmission rods 43 drive the four gears 42 to move along the inner side of the bottom groove 41, the limiting plate 44 can provide support for the four protection boxes 45, and at the same time limit the vertical movement trajectory of the four transmission rods 43, the four gears 42 drive the four transmission rods 43 to rotate through the meshing action with the teeth on the inner side of the bottom groove 41, the four transmission rods 43 drive the four power-assisting frames 47 to rotate along the outer side of the guide rods 46 through the helical gears 42 on the inner side of the protection box, when the crushed soil is transported inside the auger frame 23, the power-assisting frames 47 push the soil in the ascending direction; When the four arc plates 38 enter below the ground, the four arc plates 38 drive the convex knives 39 to crush the soil under the action of the auger frame 23 and the adjustment component 3. When the four arc plates 38 completely enter below the ground, the staff controls the output ends of the two hydraulic cylinders 15 to stop extending, and then controls the output end of the cylinder 32 to extend. The output end of the cylinder 32 moves with the pressure rod 33 to the side close to the bottom of the inner groove 31. The pressure rod 33 drives the pressure plate 35 close to the cylinder 32 to move to the side close to the bottom of the inner groove 31. The pressure plate 35 close to the cylinder 32 drives the guide plate 35 at the bottom. 1 Push the next pressing plate 35 near the bottom of the pressing plate 35 of the cylinder 32 to move to the side near the bottom of the bottom groove 41. Through the same steps, the four pressing plates 35 move along the outer side of the central axis to the side near the bottom of the bottom groove 41 at the same time. The four pressing plates 35 push the four column plates 36 to move away from the central axis. The four column plates 36 drive the four arc plates 38 to move away from the auger frame 23 through the four sets of side plates 37. The four arc plates 38 drive the convex knives 39 to crush the soil and expand the hole. The diameter of the expanded hole is controlled by controlling the output end of the cylinder 32. When the diameter of the expanded hole reaches the required working diameter, the staff controls the output end of the cylinder 32 to contract, and the output end of the cylinder 32 moves with the pressure rod 33 to the side away from the bottom of the inner groove 31, and the pressure rod 33 drives the pressure plate 35 close to the cylinder 32 to move to the side away from the bottom of the inner groove 31, and the pressure plate 35 close to the cylinder 32 drives the bottom guide plate 351 to push the next pressure plate 35 at the bottom of the pressure plate 35 close to the cylinder 32 to move to the side away from the bottom of the bottom groove 41. Through the same steps, the four pressure plates 35 move along the outer side of the central axis to the side away from the bottom of the bottom groove 41 at the same time, and the four pressure plates 35 pull the four column plates 36 to move to the side close to the central axis. The four column plates 36 drive the four arc plates 38 to move to the side close to the auger frame 23 through the four groups of side plates 37 and return to their original positions; During the hole expansion process, the auger frame 23 and the booster frame 47 work synchronously. When the crushed soil is transported inside the auger frame 23 during the hole expansion process, the booster frame 47 pushes the soil in the upward direction. After the hole is enlarged, drill and enlarge the hole again according to the above steps until the target depth is reached.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An underground coal mine geological exploration hole expansion device, comprising four legs (11), the tops of the four legs (11) are welded with support plates (12), the tops of the support plates (12) are fixed with two hydraulic cylinders (15), the outer sides of the output ends of the two hydraulic cylinders (15) are fixed with link plates (16), and the inner side of the link plates (16) is fixed with a cylinder (17), characterized in that: It also includes a drilling assembly (2), which is arranged inside the cylinder (17) and is configured to drive the auger frame (23) to rotate through the motor (21) to transport the soil for expanding and drilling holes, and to drive the drill bit (24) to rotate through the motor (21) to drill holes; A cylinder (32) is arranged on the inner side of the bottom of the auger frame (23) and is assembled to provide power for the movement of the adjustment component (3) through a pressure rod (33); An adjustment assembly (3) is arranged on the inner side of the bottom end of the auger frame (23), and is configured to drive the four arc-shaped plates (38) to move synchronously to a side away from the center rod (34) by extending the output end of the matching cylinder (32), or to drive the four arc-shaped plates (38) to move synchronously to a side close to the center rod (34) by contracting the output end of the matching cylinder (32); The power assist assembly (4) is arranged inside the adjustment assembly (3) and is configured to assist soil transportation by transmitting the force generated by the rotation of the auger frame (23) to the power assist frame (47).

2. The underground coal mine geological exploration hole expansion equipment according to claim 1, characterized in that: A bottom plate (13) is fixed to the inner side of the bottom of the four supporting legs (11), and four limiting rods (14) are fixed to the top of the bottom plate (13). The four limiting rods (14) are located on one side of the four supporting legs (11) close to the cylinder (17), and the link plate (16) is sleeved on the outer side of the four limiting rods (14).

3. The underground coal mine geological exploration hole expansion equipment according to claim 1, characterized in that: The drilling assembly (2) comprises a motor (21) and an auger frame (23), wherein the motor (21) is fixed to the top of the cylinder (17), the top of the auger frame (23) is fixed to the outside of the output end of the motor (21), the auger frame (23) is located inside the cylinder (17), a drill bit (24) is fixed to the bottom of the auger frame (23), a conveying hole (243) is provided at the top of the drill bit (24), a convex block (241) is welded to the outside of the drill bit (24), an inclined hole (242) is provided through the outside of the drill bit (24), and the inclined hole (242) and the conveying hole (243) are connected.

4. The underground coal mine geological exploration hole expansion equipment according to claim 3, characterized in that: An outlet hole (171) is formed through the outer side of the top end of the cylinder (17).

5. The underground coal mine geological exploration hole expansion equipment according to claim 3, characterized in that: An inner groove (31) is provided inside the bottom end of the auger frame (23), a pressure rod (33) is installed on the outside of the output end of the cylinder (32), and four support plates (231) are welded on the inside of the inner groove (31).

6. The underground coal mine geological exploration hole expansion equipment according to claim 5, characterized in that: The adjustment assembly (3) comprises four arc-shaped plates (38), the four arc-shaped plates (38) being placed at the bottom of the cylinder (17), the four arc-shaped plates (38) being of the same size, and being placed in a ring shape with the auger frame (23) as the axis, a convex knife (39) being fixed on one side of the four arc-shaped plates (38) away from the auger frame (23), a group of side plates (37) being fixed on one side of the four arc-shaped plates (38) close to the auger frame (23), and two side plates (37) being a group, four side holes (311) being formed through the outer side of the auger frame (23), the four side holes (311) being of different heights but of the same size, and a group of side plates (37) being placed on the inner sides of the four side holes (311).

7. The underground coal mine geological exploration hole expansion equipment according to claim 6, characterized in that: A column plate (36) is welded to one side of each group of side plates (37) away from the arc plate (38), a convex plate (352) is placed on the inner side of each column plate (36), a pressing plate (35) is welded to one side of each convex plate (352) away from the column plate (36), the four pressing plates (35) are respectively located on the inner sides of the four support plates (231), the bottoms of the three pressing plates (35) close to the pressing rod (33) are welded with guide plates (351), the three guide plates (351) fix the four pressing plates (35) together, a center axis is fixed to the top of the bottom wall of the inner groove (31), the top of the center axis is fixedly connected to the inner side of the inner groove (31), and the top of the center axis is located on the inner side of the bottom of the pressing rod (33), the four pressing plates (35) are sleeved on the outer side of the center rod (34), and the bottom of the pressing rod (33) is welded to the top of the pressing plate (35) close to the cylinder (32).

8. The underground coal mine geological exploration hole expansion equipment according to claim 7, characterized in that: The power assist assembly (4) comprises a bottom groove (41), the bottom groove (41) is provided with a bottom of the cylinder (17), a side of the bottom groove (41) close to the outside of the cylinder (17) is fixed with teeth, four gears (42) are placed inside the bottom groove (41), the four gears (42) are placed at intervals of ninety degrees with the auger frame (23) as the center, and the four gears (42) are all meshed with the gear (42).

9. The underground coal mine geological exploration hole expansion equipment according to claim 8, characterized in that: A transmission rod (43) is fixed on the inner side of the four gears (42), a limiting plate (44) is fixed on the outer side of the four transmission rods (43), the limiting plate (44) is located at the bottom of the four gears (42), the limiting plate (44) is located on the inner side of the bottom of the cylinder (17), a protection box (45) is fixed on one side of the four arc-shaped plates (38) close to the auger frame (23), the bottom of each transmission rod (43) is located on the inner side of the protection box (45), a power-assisting frame (47) is installed through one side of the four protection boxes (45) close to the auger frame (23), and the outer side of the other end of the four power-assisting frames (47) is A sealing plate (48) is rotatably mounted, and the four sealing plates (48) are respectively welded to the inner sides of the four side holes (311). Another bevel gear (42) is fixed to one end of the four booster frames (47) located on the protection box (45), and the two bevel gears (42) located on the inner side of the same protection box (45) are meshed. A guide rod (46) is welded to one side of each arc plate (38) close to the auger frame (23), and the other ends of the four guide rods (46) are welded to one side of the column plate (36) located at the same height away from the central axis. The four booster frames (47) are sleeved on the outer sides of the four guide rods (46).

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