A coal mine geological drilling device

Abstract

The present application relates to the field of geological drilling, in particular to a coal mine geological drilling device, including shielding cover, the middle part of shielding cover is provided with drill pipe, the inside of shielding cover is provided with cleaning mechanism, the top end of shielding cover is provided with linkage mechanism, and cleaning mechanism is connected with linkage mechanism transmission, lifting mechanism is arranged between shielding cover and drill pipe, when U-shaped tooth plate is followed by lifting plate under the operation of driving mechanism, the synchronous rotation of two screw rods is realized, and the downward movement of two ground insertion rods is controlled, the ground insertion rod is inserted into the ground first, then the drill pipe drills the ground, which is beneficial to the stability of subsequent ground drilling, then the drill pipe will drill the ground a distance through the driving mechanism, and the wedge is extruded and moved by the descending extrusion rod, so that the transmission connection between linkage mechanism and long gear is realized, and the cleaning mechanism is further driven to clean the soil and stones in the shielding cover.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of geological drilling, in particular to a coal mine geological drilling device. BACKGROUND

[0002] Coal mine geological exploration is a work of using certain mechanical tools or excavation operations to understand the geological conditions underground. In places where outcrops on the ground are less, lithology changes greatly or geological structures are complex, ground observation alone often cannot understand the geological conditions. Therefore, it is necessary to use geological exploration engineering to understand and obtain the geological conditions and data of the deep underground of coal mines, and thus it is necessary to use geological exploration drilling equipment.

[0003] The existing patent application No. CN118187718A discloses a coal mine geological drilling device, which belongs to the technical field of geological drilling. The device includes a first support frame, a second support frame and a driving assembly. The second support frame is fixedly assembled on the top of the first support frame. The driving assembly is arranged in the second support frame. The device further includes a drilling assembly arranged in the driving assembly for drilling of coal mine geology. The drilling assembly includes a first motor and a drill cylinder. The first motor is arranged on the driving assembly. The drill cylinder is assembled on the output end of the first motor and penetrates through the side surface of the first support frame. A protection assembly is arranged at the bottom of the first support frame to protect the flying stones generated during the operation of the drilling assembly, so as to avoid splashing of the flying stones or flying debris on the workers. At the same time, the blocked flying debris can be discharged to reduce the influence of the flying debris falling on the drill cylinder and affecting the normal operation of the drill cylinder.

[0004] Although the above-mentioned device can avoid splashing of the flying stones or flying debris on the workers during the drilling process, the protection cover is fixed on the bottom of the support frame and in contact with the ground, and does not have the feature of lifting. The protection cover is always attached to the ground, which makes it difficult to move the subsequent device. In addition, the above-mentioned device is only supported by a single horizontal plate during drilling, which makes it difficult to ensure the stability of the drilling device and causes the drilling device to shake easily during operation, thereby affecting the stability of the drilling. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a coal mine geological drilling device to solve the problem that the protection cover is fixed on the bottom of the support frame and in contact with the ground, and does not have the feature of lifting. The protection cover is always attached to the ground, which makes it difficult to move the subsequent device. In addition, the above-mentioned device is only supported by a single horizontal plate during drilling, which makes it difficult to ensure the stability of the drilling device.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0007] The utility model provides a kind of coal mine geological drilling device, including shielding cover, the middle part of the shielding cover is provided with drill rod, the inside of the shielding cover is provided with cleaning mechanism, the top of the shielding cover is provided with linkage mechanism, and cleaning mechanism is connected with linkage mechanism transmission, shielding cover and drill rod between being provided with lifting mechanism, the surface of the drill rod is rotatably connected with U type tooth plate, the top of the drill rod is provided with driving mechanism, and drill rod is lowered and rotates by driving mechanism, driving mechanism is connected with linkage mechanism transmission between, the both sides of the shielding cover are provided with moving seat, and driving mechanism is arranged between two moving seats, the side of two the moving seat is provided with ground insertion mechanism, and two ground insertion mechanisms are connected with U type tooth plate transmission.

[0008] Preferably, the cleaning mechanism includes a fixed ring, the bottom of the shielding cover is provided with a plurality of discharge ports, the fixed ring is fixedly connected to the inner top wall of the shielding cover, the surface of the fixed ring is provided with a bearing, the fixed ring is rotatably connected to a gear ring through the bearing, the bottom surface of the gear ring is fixedly connected to a plurality of vertical rods, the bottom end of each vertical rod is fixedly connected to an L-shaped cleaning plate, and the arc portion of the L-shaped cleaning plate corresponds to the discharge port.

[0009] Preferably, the linkage mechanism includes a first rotating rod, a base and a long gear, the long gear is fixedly connected to the surface of the drill rod, the base is fixedly connected to the top of the shielding cover through a support, the first rotating rod is rotatably connected to the top of the shielding cover, the bottom end of the first rotating rod extends into the shielding cover and is fixedly connected to a first gear engaged with the gear ring, the top end of the first rotating rod penetrates the base and is fixedly connected to a fourth gear, a U-shaped bracket is elastically and slidably arranged on the base, a second rotating rod is rotatably connected to the U-shaped bracket, a third gear and a second gear are fixedly connected to the middle part and the top end of the second rotating rod respectively, and the third gear is flush with the fourth gear.

[0010] Preferably, a sliding groove is formed in the base, and a guide rod is fixedly connected in the sliding groove, a sliding block is fixedly connected to the bottom end of the U-shaped bracket, the sliding block is sleeved on the guide rod and slides in the sliding groove, a compression spring is fixedly connected to the sliding block, and one end of the compression spring is fixedly connected to the inner wall of the sliding groove.

[0011] Preferably, an extrusion rod is fixedly connected to the U-shaped tooth plate, a pushing rod is fixedly connected to the left side surface of the U-shaped bracket, one end of the pushing rod is fixedly connected to a wedge-shaped block, and the bottom end of the extrusion rod is adapted to the wedge-shaped block.

[0012] Preferably, the lifting mechanism includes a lifting plate, the lifting plate is rotatably connected to the surface of the drill rod, the top of the shielding cover is fixedly connected to a positioning rod and an L-shaped plate, the top end of the positioning rod slidably penetrates the lifting plate and is fixedly connected to the top end of the L-shaped plate, and the U-shaped tooth plate is provided with an avoidance slot corresponding to the L-shaped plate.

[0013] Preferably, the driving mechanism comprises a lifting plate, a motor and two hydraulic rods, the two hydraulic rods are respectively installed at the middle part of the moving seat, the motor is installed at the middle part of the lifting plate, the top end of the drill rod is connected with the output end of the motor, the telescopic ends of the two hydraulic rods are fixedly connected on the lifting plate, the U-shaped tooth plate is fixedly connected with a fixing rod, and the fixing rod is connected with the lifting plate.

[0014] Preferably, the surfaces of the two hydraulic rods are hingedly connected with telescopic sleeves, and the telescopic ends of the two telescopic sleeves are hingedly connected with the surface of the shielding cover.

[0015] Preferably, the ground inserting mechanism comprises a fixing frame fixedly connected with the surface of the hydraulic rod, a third rotating rod rotatably connected with the middle part of the fixing frame, a fifth gear fixedly connected with the middle part of the third rotating rod, and the side teeth of the U-shaped tooth plate are engaged with the fifth gear, two screw rods rotatably connected with the two ends of the fixing frame, a second bevel gear fixedly connected with the top end of each screw rod, a first bevel gear fixedly connected with the two ends of the third rotating rod, and the first bevel gear is engaged with the corresponding second bevel gear, a ground inserting rod threadedly sleeved with each screw rod, a cross rod fixedly connected between the two ground inserting rods, and a positioning frame fixedly connected with the side surface of the fixing frame, and the bottom end of the U-shaped tooth plate penetrates and slides in the positioning frame.

[0016] Preferably, the two ends of each moving seat are fixedly connected with a guide frame, the two ends of the lifting plate are fixedly connected with a side plate, one end of each side plate is rotatably connected with a roller, the roller slides in the corresponding guide frame, a protective plate is fixedly connected between each adjacent two guide frames, and a maintenance door is arranged on the front protective plate.

[0017] The present application has the following advantages:

[0018] 1. When the U-shaped tooth plate is lowered by the operation of the driving mechanism, the synchronous rotation of the two screw rods and the downward movement of the two ground inserting rods are realized, so that the ground inserting rod is firstly inserted into the ground, then the drill rod drills the ground, which is beneficial to the stability of the subsequent ground drilling, then the drill rod drills the ground for a distance by the driving mechanism, the wedge is extruded and moved by the descending extruding rod, the transmission connection between the linkage mechanism and the long gear is realized, and the cleaning mechanism is further driven to clean the soil and stones in the shielding cover, so as to avoid the accumulation of too much soil and stones at the drilling port and affect the use of the drill rod, and the mechanism is always located in the shielding cover and does not occupy external space.

[0019] 2. With the lifting mechanism and two telescopic sleeves, when the drill rod rises via the drive mechanism, the bottom end of the drill rod moves upward from inside the shield until it reaches the top of the shield. At this point, the lifting plate contacts the L-shaped plate and together they lift the L-shaped plate and the shield, moving the shield away from the ground to facilitate movement of the device and prevent friction between the shield and the ground during movement. When the drill rod descends, the L-shaped plate and the shield also descend with gravity until the shield is in contact with the ground, thus shielding and protecting against mud and gravel during drilling. The two telescopic sleeves ensure stable up-and-down movement of the shield, preventing it from swaying. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention with the protective plate removed;

[0022] Figure 3 This is a schematic diagram of the ground insertion mechanism of the present invention;

[0023] Figure 4 This is a top sectional view of the shielding cover of the present invention;

[0024] Figure 5 This is a front structural cross-sectional view of the shielding cover of the present invention;

[0025] Figure 6 This is a schematic diagram of the connection structure of the lifting plate, motor, drill rod and U-shaped toothed plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the connection structure between the U-shaped frame and the second rotating rod of the present invention;

[0027] Figure 8 This is a schematic diagram of the cleaning mechanism of the present invention;

[0028] Figure 9 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A;

[0029] Figure 10 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B;

[0030] Figure 11 This is a schematic diagram of the lifting plate of the present invention.

[0031] In the figure: 1, shielding cover; 2, moving seat; 3, hydraulic rod; 4, lifting plate; 5, motor; 6, drill rod; 7, long gear; 8, lifting plate; 9, positioning rod; 10, L-shaped plate; 11, U-shaped tooth plate; 12, avoiding groove; 13, side plate; 14, guide frame; 15, protective plate; 16, telescopic sleeve; 17, screw rod; 18, ground insertion rod; 19, L-shaped cleaning plate; 20, discharge port; 21, cross rod; 22, fixed frame; 23, bottom plate; 24, vertical rod; 25, first rotating rod; 26, first gear; 27, bearing; 28, gear ring; 29, fixed ring; 30, fixed rod; 31, extrusion rod; 32, second gear; 33, pushing rod; 34, wedge block; 35, U-shaped frame; 36, compression spring; 37, second rotating rod; 38, third gear; 39, sliding block; 40, base; 41, fourth gear; 42, positioning frame; 43, fifth gear; 44, third rotating rod; 45, first bevel gear; 46, second bevel gear. DETAILED DESCRIPTION

[0032] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0033] A coal mine geological drilling device, as shown in the accompanying drawings Figures 1 to 11As shown, including shielding cover 1, the middle of shielding cover 1 is provided with drill pipe 6, so that drill pipe 6 can normally slide in the middle of shielding cover 1, and drill pipe 6 shields the material splashed during drilling, the inside of shielding cover 1 is provided with cleaning mechanism, which is used for sweeping the soil and rock in shielding cover 1, to avoid excessive accumulation, the top of shielding cover 1 is provided with linkage mechanism, and the cleaning mechanism is drivingly connected with the linkage mechanism, the lifting mechanism is arranged between shielding cover 1 and drill pipe 6, which can make drill pipe 6 rise after a distance, then drive shielding cover 1 to rise, so that shielding cover 1 is separated from the ground, ensuring the movement of the whole device, the surface of drill pipe 6 is rotatably connected with U-shaped tooth plate 11, the two side surfaces of U-shaped tooth plate 11 are provided with teeth, the top of drill pipe 6 is provided with driving mechanism, and drill pipe 6 is lowered and rotated through driving mechanism, driving mechanism and linkage mechanism are drivingly connected, when driving mechanism drives drill pipe 6 to rotate, linkage mechanism is driven to move, then linkage mechanism drives cleaning mechanism to clean the soil and rock in shielding cover 1, without using additional power equipment, the two sides of shielding cover 1 are provided with moving seat 2, and driving mechanism is arranged between the two moving seats 2, the two moving seats 2 can ensure the subsequent walking movement of the device, one side of the two moving seats 2 is provided with inserting mechanism, and the two inserting mechanisms are drivingly connected with U-shaped tooth plate 11, when driving mechanism drives U-shaped tooth plate 11 to descend, U-shaped tooth plate 11 will first drive inserting mechanism to act, and make inserting mechanism insert into the ground, to ensure the stability of drill pipe 6 during subsequent work, when inserting mechanism inserts into the ground, drill pipe 6 starts drilling.

[0034] As shown in the accompanying drawings Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the cleaning mechanism comprises a fixed ring 29, the bottom of the shielding cover 1 is provided with a plurality of discharge ports 20, the fixed ring 29 is fixedly connected to the inner top wall of the shielding cover 1, the surface of the fixed ring 29 is provided with a bearing 27, the fixed ring 29 is rotatably connected with a gear ring 28 through the bearing 27, the bottom surface of the gear ring 28 is fixedly connected with a plurality of vertical rods 24, the bottom end of each vertical rod 24 is fixedly connected with an L-shaped cleaning plate 19, and the arc part of the L-shaped cleaning plate 19 corresponds to the discharge port 20. Through the above structure, when the gear ring 28 rotates in the shielding cover 1, each vertical rod 24 and L-shaped cleaning plate 19 will be driven to rotate, and each L-shaped cleaning plate 19 rotates counterclockwise. In the initial state, the L-shaped cleaning plate 19 will shield the discharge port 20, preventing soil and rock from splashing outside. When the drill pipe 6 drills a distance into the ground, each L-shaped cleaning plate 19 sweeps the soil and rock in the shielding cover 1, preventing excessive accumulation from affecting the use of the drill pipe 6, thereby sweeping the soil and rock in the shielding cover 1 outward, preventing excessive soil and rock from accumulating at the drilling hole, and the mechanism is always located in the shielding cover 1, without occupying external space.

[0035] As shown in Figure 4 , Figure 5 and Figure 7 , the linkage mechanism comprises a first rotating rod 25, a base 40 and a long gear 7, the long gear 7 is fixedly connected to the surface of the drill rod 6, the base 40 is fixedly connected to the top end of the shielding cover 1 through a support, the first rotating rod 25 is rotatably connected to the top end of the shielding cover 1, the bottom end of the first rotating rod 25 extends into the shielding cover 1 and is fixedly connected with a first gear 26 engaged with a tooth ring 28, the top end of the first rotating rod 25 penetrates through the base 40 and is fixedly connected with a fourth gear 41, a U-shaped bracket 35 is elastically and slidably arranged on the base 40, a second rotating rod 37 is rotatably connected to the U-shaped bracket 35, the middle and top ends of the second rotating rod 37 are fixedly connected with a third gear 38 and a second gear 32 respectively, and the third gear 38 is flush with the fourth gear 41. Through the arrangement of the above structure, when the second gear 32 is close to engagement with the long gear 7, the third gear 38 is also engaged with the fourth gear 41 at this time, so that the second gear 32, the third gear 38, the second rotating rod 37, the fourth gear 41, the first rotating rod 25 and the first gear 26 are rotated under the rotation of the long gear 7, and finally the rotation of the tooth ring 28 is realized, without the need for additional use of power equipment.

[0036] As shown in Figure 9 , a sliding groove is formed in the base 40, and a guide rod is fixedly connected in the sliding groove, the bottom end of the U-shaped bracket 35 is fixedly connected with a sliding block 39, the sliding block 39 is sleeved on the guide rod and slides in the sliding groove, a compression spring 36 is fixedly connected to the sliding block 39, and one end of the compression spring 36 is fixedly connected to the inner wall of the sliding groove. Through the arrangement of the above structure, the sliding stability of the U-shaped bracket 35 is ensured, and the second gear 32 is not engaged with the long gear 7 and the third gear 38 is not engaged with the fourth gear 41 in the normal state of the U-shaped bracket 35, so that the U-shaped bracket 35 has the effect of automatic reset.

[0037] As shown in Figure 6 , Figure 7 and Figure 9 , an extrusion rod 31 is fixedly connected to the U-shaped tooth plate 11, a push rod 33 is fixedly connected to the left side surface of the U-shaped bracket 35, one end of the push rod 33 is fixedly connected with a wedge block 34, and the bottom end of the extrusion rod 31 is matched with the wedge block 34. Through the arrangement of the above structure, when the lifting plate 4 is lowered by a certain distance, the bottom end of the extrusion rod 31 will contact and extrude the wedge block 34, so that the wedge block 34 and the push rod 33 push the U-shaped bracket 35 to approach the long gear 7, for the normal engagement of the second gear 32 with the long gear 7, at the same time, the third gear 38 will also engage with the fourth gear 41, so that the second gear 32 is rotated under the rotation of the drill rod 6, the second rotating rod 37, the third gear 38 and the fourth gear 41 are rotated by the second gear 32, finally the first gear 26 drives the tooth ring 28 to rotate, and ensures that each L-shaped cleaning plate 19 normally sweeps the soil and stones in the shielding cover 1.

[0038] As attached Figure 2 As shown, the lifting mechanism includes a lifting plate 8, which is rotatably connected to the surface of the drill rod 6. A positioning rod 9 and an L-shaped plate 10 are fixedly connected to the top of the shield 1. The top end of the positioning rod 9 slides through the lifting plate 8 and is fixedly connected to the top end of the L-shaped plate 10. A clearance groove 12 corresponding to the L-shaped plate 10 is provided on the U-shaped toothed plate 11. The clearance groove 12 can avoid contact and collision with the L-shaped plate 10. With the above structure, when the drill rod 6 rises through the drive mechanism, the bottom end of the drill rod 6 will move upward from inside the shield 1 until the bottom end of the drill rod 6 reaches the top end of the shield 1. At this time, the lifting plate 8 will contact the L-shaped plate 10 and together drive the L-shaped plate 10 and the shield 1 to rise. After the lifting plate 8 contacts the L-shaped plate 10, it can together drive the shield 1 to rise, so that the shield 1 is away from the ground, so that the device can move and avoid the shield 1 rubbing against the ground when the device moves.

[0039] As attached Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the drive mechanism includes a lifting plate 4, a motor 5, and two hydraulic rods 3. The two hydraulic rods 3 are respectively installed in the middle of the movable seat 2. The motor 5 is installed in the middle of the lifting plate 4. The top of the drill rod 6 is connected to the output end of the motor 5. The telescopic ends of the two hydraulic rods 3 are fixed to the lifting plate 4. A fixing rod 30 is fixed to the U-shaped toothed plate 11 and is connected to the lifting plate 4. With the above structure, the height of the lifting plate 4 can be adjusted by the synchronous operation of the two hydraulic rods 3. Then, the drill rod 6 is rotated by the operation of the motor 5, so that the drill rod 6 can drill in the coal mine area. The U-shaped toothed plate 11 does not rotate on the surface of the drill rod 6, but can only move up and down with the drill rod 6.

[0040] As attached Figures 2 to 5 As shown, telescopic sleeves 16 are hinged to the surfaces of the two hydraulic rods 3. The telescopic ends of the two telescopic sleeves 16 are hinged to the surface of the shield 1. The telescopic sleeves 16 ensure the stability of the shield 1, prevent misalignment between the shield 1 and the drill rod 6, and enable the shield 1 to move up and down stably.

[0041] As attached Figure 2 , Figure 3 and Figure 10As shown, the ground insertion mechanism comprises a fixed frame 22 fixedly connected to the surface of the hydraulic rod 3, the middle part of the fixed frame 22 is rotatably connected with a third rotating rod 44, the middle part of the third rotating rod 44 is fixedly connected with a fifth gear 43, and the side teeth of the U-shaped toothed plate 11 are engaged with the fifth gear 43. When the side teeth of the U-shaped toothed plate 11 are engaged with the fifth gear 43, the third rotating rod 44 can be driven to rotate. When the teeth on the U-shaped toothed plate 11 are not engaged with the fifth gear 43, the third rotating rod 44 will not continue to rotate. Both ends of the fixed frame 22 are rotatably connected with a screw rod 17, the top end of each screw rod 17 is fixedly connected with a second bevel gear 46, both ends of the third rotating rod 44 are fixedly connected with a first bevel gear 45, and the first bevel gear 45 is engaged with the corresponding second bevel gear 46. Each screw rod 17 is threadedly sleeved with a ground insertion rod 18, and the two ground insertion rods 18 are fixedly connected with a cross rod 21. The side surface of each moving seat 2 is fixedly connected with a bottom plate 23, two perforations are formed in each bottom plate 23, and the bottom ends of the two ground insertion rods 18 are inserted into the two perforations, respectively. Through the above structure, when the U-shaped toothed plate 11 descends with the lifting plate 4, the teeth on the U-shaped toothed plate 11 will drive the fifth gear 43 to rotate, thereby driving the two first bevel gears 45 to rotate synchronously, and the two first bevel gears 45 drive the two second bevel gears 46 to rotate, respectively, thereby realizing the synchronous rotation of the two screw rods 17 and controlling the downward movement of the two ground insertion rods 18, thereby inserting into the ground and stabilizing the device, which is beneficial to the stability of subsequent drilling of the ground. When drilling, the ground insertion rod 18 is inserted into the ground first, and then the drill rod 6 drills the ground.

[0042] As shown in the accompanying drawings Figure 3 and Figure 10 As shown, the side surface of the fixed frame 22 is fixedly connected with a positioning frame 42, and the bottom end of the U-shaped toothed plate 11 penetrates and slides in the positioning frame 42. Through the positioning frame 42, the stability of the U-shaped toothed plate 11 during lifting is ensured, and the accuracy of the engagement between the U-shaped toothed plate 11 and the fifth gear 43 is also ensured, avoiding the separation of the positions between the U-shaped toothed plate 11 and the fifth gear 43.

[0043] As shown in the accompanying drawings Figures 1 to 3As shown, the two ends of each mobile seat 2 are fixedly connected with guide frames 14, the two ends of the lifting plate 4 are fixedly connected with side plates 13, one end of each side plate 13 is rotatably connected with a roller, and the roller slides in the corresponding guide frame 14. Through the arrangement of the guide frame 14 and the roller, the stability of the lifting plate 4 during lifting through the hydraulic rod 3 can be ensured, and the lifting plate 4 is prevented from shaking when the drill rod 6 is running. The front protective plate 15 is fixedly connected between every two adjacent guide frames 14, and a maintenance door is formed in the front protective plate 15. Through the arrangement of the protective plate 15, the rotating parts can be protected, the staff is prevented from being accidentally touched, and the maintenance door can also facilitate personnel to maintain the internal parts.

[0044] Working principle: when drilling on the ground of the coal mine, first of all, the device is moved to the position where drilling is needed, then the driving mechanism is started, the U-shaped tooth plate 11 is lowered under the operation of the hydraulic rod 3, the two side teeth on the U-shaped tooth plate 11 will drive the two fifth gears 43 to rotate at the same time, then the corresponding third rotating rod 44 drives the two first bevel gears 45 to rotate synchronously, the two first bevel gears 45 drive the two second bevel gears 46 to rotate respectively, further realizing the synchronous rotation of the two screw rods 17 and controlling the downward movement of the two ground insertion rods 18, so that the ground insertion rod 18 is inserted into the ground, the device is stable, and when drilling, the ground insertion rod 18 is inserted into the ground first, then the drill rod 6 starts to drill the ground, which is conducive to the stability of subsequent ground drilling, then the drill rod 6 drills the ground for a distance through the motor 5, then the extrusion rod 31 is lowered by the continuous descent of the U-shaped tooth plate 11, and the wedge block 34 is extruded and moved, so that the second gear 32 and the long gear 7 are close to and meshed, and at the same time, the third gear 38 is also meshed with the fourth gear 41, that is, the tooth ring 28 finally drives each L-shaped cleaning plate 19 to rotate, without the need for additional use of power equipment, so that each L-shaped cleaning plate 19 cleans the soil and gravel in the shielding cover 1, and the soil and gravel is cleaned out of the discharge port 20, avoiding the accumulation of too much soil and gravel at the drilling port to affect the use of the drill rod 6, and the L-shaped cleaning plate 19 arc part can shield the discharge port 20 at the beginning, avoiding the splashing of gravel from the discharge port 20, and the mechanism is always located in the shielding cover 1, without occupying external space, when the drill rod 6 completes drilling, the drill rod 6 is lifted by the operation of the hydraulic rod 3, until the bottom end of the drill rod 6 reaches the top end of the shielding cover 1, at this time, the lifting plate 8 will contact the L-shaped plate 10, and the L-shaped plate 10 and the shielding cover 1 are lifted together, so that the shielding cover 1 is away from the ground, in order to facilitate the movement of the device, avoiding the friction between the shielding cover 1 and the ground during the movement of the device, and the side teeth of the U-shaped tooth plate 11 will also reengage with the fifth gear 43, thereby controlling the extraction of the ground insertion rod 18 from the ground, so that the device is easy to move, and when the drill rod 6 is lowered, the L-shaped plate 10 and the shielding cover 1 will also be lowered together under the action of gravity, until the shielding cover 1 is attached to the ground, ensuring that the soil and gravel during drilling is shielded by the shielding cover 1, and the two telescopic sleeves 16 ensure the stable upward and downward movement of the shielding cover 1, avoiding the shaking of the shielding cover 1.

[0045] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0046] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A coal mine geological drilling device, characterized in that: A drill rod is installed through the middle of the shield. A cleaning mechanism is installed inside the shield. A linkage mechanism is installed at the top of the shield. The cleaning mechanism is connected to the linkage mechanism. A lifting mechanism is installed between the shield and the drill rod. A U-shaped toothed plate is rotatably connected to the surface of the drill rod. A drive mechanism is installed at the top of the drill rod. The drill rod descends and rotates through the drive mechanism. The drive mechanism is connected to the linkage mechanism. Movable seats are installed on both sides of the shield. Guide frames are fixed to both ends of each movable seat. The drive mechanism is located between the two movable seats. A ground insertion mechanism is installed on one side of each of the two movable seats. Both ground insertion mechanisms are connected to the U-shaped toothed plate. The cleaning mechanism includes a fixed ring. Several discharge ports are opened at the bottom of the shield. The fixed ring is fixed to the inner top wall of the shield. A bearing is installed on the surface of the fixed ring. The fixed ring is rotatably connected to a toothed ring through the bearing. Several uprights are fixed to the bottom surface of the toothed ring. An L-shaped cleaning plate is fixed to the bottom end of each upright. The arc-shaped part of the L-shaped cleaning plate corresponds to the discharge port. The linkage mechanism includes a first rotating rod, a base, and a long gear. The long gear is fixed to the surface of the drill rod. The base is fixed to the top of the shield via a bracket. The first rotating rod is rotatably connected to the top of the shield. The bottom end of the first rotating rod extends into the shield and is fixed to a first gear that meshes with a gear ring. The top end of the first rotating rod passes through the base and is fixed to a fourth gear. A U-shaped frame is elastically slidably mounted on the base. A second rotating rod is rotatably connected to the U-shaped frame. A third gear and a second gear are fixed to the middle and top of the second rotating rod, respectively, and the third gear is flush with the fourth gear. The base has a sliding groove, and a guide rod is fixedly connected in the sliding groove. A slider is fixedly connected to the bottom end of the U-shaped frame. The slider is sleeved on the guide rod and slides in the sliding groove. A compression spring is fixedly connected to the slider, and one end of the compression spring is fixedly connected to the inner wall of the sliding groove. A pressing rod is fixedly connected to the U-shaped toothed plate, a pushing rod is fixedly connected to the left side of the U-shaped frame, a wedge block is fixedly connected to one end of the pushing rod, and the pressing rod is compatible with the wedge block; The lifting mechanism includes a lifting plate, which is rotatably connected to the surface of the drill rod. A positioning rod and an L-shaped plate are fixedly connected to the top of the shield. The top of the positioning rod slides through the lifting plate and is fixedly connected to the top of the L-shaped plate. A clearance groove corresponding to the L-shaped plate is provided on the U-shaped toothed plate. Both hydraulic rods have telescopic sleeves hinged to their surfaces, and the telescopic ends of both telescopic sleeves are hinged to the surface of the shield. The grounding mechanism includes a fixed frame, which is fixedly connected to the surface of the hydraulic rod. A third rotating rod is rotatably connected to the middle of the fixed frame. A fifth gear is fixedly connected to the middle of the third rotating rod, and the side teeth of the U-shaped toothed plate mesh with the fifth gear.

2. A coal mine geological drilling device according to claim 1, characterized in that, The drive mechanism includes a lifting plate, a motor, and two hydraulic rods. The two hydraulic rods are respectively installed in the middle of the moving base, and the motor is installed in the middle of the lifting plate. The top of the drill rod is connected to the output end of the motor. The telescopic ends of the two hydraulic rods are fixed to the lifting plate. A fixing rod is fixed to the U-shaped toothed plate and is connected to the lifting plate.

3. A coal mine geological drilling device according to claim 2, characterized in that, Both ends of the fixed frame are rotatably connected to screws, and the top of each screw is fixedly connected to a second bevel gear. Both ends of the third rotating rod are fixedly connected to a first bevel gear, and the first bevel gear meshes with the corresponding second bevel gear. Each screw is threaded with a grounding rod, and a crossbar is fixedly connected between two grounding rods. A positioning frame is fixedly connected to the side of the fixed frame, and the bottom end of the U-shaped toothed plate slides through the positioning frame.

4. A coal mine geological drilling device according to claim 2, characterized in that, Both ends of the lifting platform are fixedly connected to side plates. Each side plate has a roller rotatably connected to one end, and the roller slides in the corresponding guide frame. A protective plate is fixedly connected between each pair of adjacent guide frames, and an inspection door is opened on the protective plate on the front.

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