Geological punching equipment for mining

Abstract

The invention relates to the technical field of geological punching, and particularly discloses geological punching equipment for mining, which comprises driving equipment capable of three-dimensionally adjusting, a mounting disc is fixedly mounted at the bottom end of the driving equipment, and a middle shaft is rotatably mounted in the mounting disc; and a rotating cylinder arranged outside the middle shaft in a sleeving mode is rotationally installed in a groove formed in the bottom end of the installation disc, a drill bit is fixedly installed at the end, extending out of the rotating cylinder, of the middle shaft, a spiral conveying groove is formed in the outer wall of the drill bit, and a soil inlet gap is formed between the rotating cylinder and the drill bit. According to the device, the soil inlet gap is formed between the drill bit and the rotating cylinder, so that muck generated during drilling of the drill bit enters the rotating cylinder, the muck is conveyed out of a blast hole along the rotating cylinder through the spiral piece, and the muck can be conveyed in a dry-type soil moving mode; and the phenomenon that the explosion performance or the explosion effect of explosives in the blast hole is affected by too high water content in the blast hole after slurry circulation is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of geological drilling, in particular to geological drilling equipment used in mining. Background Art

[0002] Mining refers to the process of excavating mineral resources from the surface or underground. Usually, equipment such as tunnel boring machines are used to crush and mine minerals. Due to the complex geological structure of my country, in the process of mineral mining, the construction section is narrow and the rock strength is high. The construction efficiency of tunnel boring machines is low, resulting in high equipment costs and large mechanical wear. At this time, blasting operations are required to crush the rocks.

[0003] For example, Chinese patent No. CN107386978B discloses a three-axis grooving and drilling rock breaking device for a coal mine rock tunnel, comprising a drill rod arranged on an adjusting bracket, wherein the long direction of the drill rod is horizontal and one end is connected to a horizontal driving mechanism, wherein a plurality of drill rods are arranged in parallel and at intervals on the adjusting bracket, and the horizontal driving mechanism drives the drill rod to move horizontally and perform drilling operations, and the spatial position of the drill rod on the adjusting bracket is adjustable. The present invention has a simple structure and can perform drilling construction at a high speed and with high quality while ensuring safety, drilling three holes at a time, thereby increasing the number of holes drilled per unit time, reducing the drilling time, ensuring the uniformity of the parallelism and angles between the holes drilled, making the blastholes more integrated, reducing the depth error along the blastholes, improving the utilization rate of the blasting energy, improving the blasting process, reducing the consumption of man-hours, and reducing the construction cost.

[0004] However, in the above scheme, during the process of drilling the blasthole, the rock in the hole is cut with the aid of high-pressure water, and the rock powder in the blasthole is discharged synchronously by flushing with high-pressure water, so that the water content in the blasthole after the slotting is too high. The presence of water will not only dilute or soak the explosives, reduce their explosive performance, and require more explosives to achieve the desired blasting effect, thereby increasing the blasting cost, but the incompressibility of water will hinder the effective transfer of explosion energy to the rock, reduce the degree of rock fragmentation, and lead to poor blasting effect. Summary of the invention

[0005] The object of the present invention is to provide a geological drilling device for mining to solve at least one technical problem existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A geological drilling device for mining, comprising a driving device capable of three-dimensional adjustment, a mounting plate fixedly mounted at the bottom end of the driving device, a central axis rotatably mounted in the mounting plate, a rotating cylinder sleeved outside the central axis rotatably mounted in a groove provided in the bottom end of the mounting plate, a drill bit fixedly mounted at the end of the central axis extending out of the rotating cylinder, a spiral feed trough provided on the outer wall of the drill bit, a soil feeding gap provided between the rotating cylinder and the drill bit, a soil discharge channel provided on the upper outer wall of the rotating cylinder, a spiral sheet fixedly mounted on the outer wall of the central axis between the soil feeding gap and the soil discharge channel;

[0007] Also included is a driving assembly, which is used to drive the central shaft to rotate along its axis.

[0008] Preferably, the spiral sheet is arranged in three sections, wherein the pitch and cross-section of the lower section are constant, the pitch and cross-section of the middle section both gradually decrease, the pitch of the upper section is consistent with the lower section and the cross-section is constant, a sliding cylinder which can be slidably adjusted is installed in the rotating cylinder, and the sliding cylinder is also divided into three sections which can fit with the spiral sheet, a plurality of groups of drainage holes are provided on the inner wall of the sliding cylinder corresponding to the middle section of the spiral sheet, a square groove which can be connected with the drainage hole is provided on the inner wall of the rotating cylinder, conductive carbon black is fixedly installed in the square groove, and the conductive carbon black is connected with an external power circuit through a circuit buried in the rotating cylinder.

[0009] Preferably, a rotatable rotating ring is installed in the annular groove opened in the rotating cylinder, a plurality of arc grooves distributed in an annular shape are opened on the outer wall of the rotating ring, an annular groove is also opened in the rotating cylinder located below the annular groove, a plurality of sliding blocks that can slide centrifugally or centrifugally are slidably installed on the top surface of the annular groove, and a pin shaft that can slide in the arc groove is fixedly installed on the outer wall of the sliding block, and a rotating rod is rotatably installed between the sliding block and the top surface of the sliding cylinder.

[0010] Preferably, a pumping channel is opened in the central axis, and the pumping channel is connected to the outside through a recessed hole at the bottom of the drill bit, a filter is provided at the bottom of the pumping channel, the top of the central axis is connected to an external pumping device, and the external pumping device is connected to the power-on circuit where the conductive carbon black is located through an electrical signal.

[0011] Preferably, the driving assembly includes a central gear fixedly mounted on the outer wall of the central shaft and a rotatable driving gear, the inner top surface of the inner groove at the bottom end of the mounting plate has two transmission gears that are rotatable and mesh with the central gear, the inner wall of the rotating cylinder is provided with a gear ring that meshes with the transmission gear, and the driving gear is driven by a servo motor mounted on the mounting plate.

[0012] Preferably, a sliding sleeve and a sliding ring are slidably installed in the interlayer opened on the outer wall of the rotating cylinder, a spring is provided between the sliding sleeve and the sliding ring, an outer support block that can slide centrifugally or centripetally is slidably installed on the outer wall of the bottom end of the rotating cylinder, and the outer support block is rotatably connected to the sliding sleeve through a support rod.

[0013] Preferably, a water-blocking rod having a smaller diameter than the drainage hole is fixedly installed in the drainage hole through a connecting pin, and the gap between the water-blocking rod and the drainage hole is filled with filter cotton.

[0014] Preferably, a plurality of support blocks are fixedly mounted on the bottom end of the rotating cylinder, and the support blocks are in rolling contact with the drill bit via balls.

[0015] Preferably, a plurality of air flow holes are provided in the drill bit, and a gas transmission channel is provided in the rotating cylinder, one end of the gas transmission channel leads to the soil gap, and the other end is connected to an external gas supply device, and the gas transmission channel passes through the square groove where the conductive carbon black is located.

[0016] Preferably, a plurality of grinding protrusions are integrally formed on the outer wall of the drill bit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a soil entry gap between the drill bit and the rotating cylinder to allow the debris generated when the drill bit excavates to enter the rotating cylinder and transport the debris along the rotating cylinder to the outside of the blasthole through the spiral blade. The debris can be transported by dry soil transportation, avoiding excessive water content in the blasthole after mud circulation that affects the explosive performance or blasting effect of the explosive in the blasthole, reducing the amount of explosives used and improving the blasting effect on the working surface.

[0019] 2. The present invention compresses the slag in the sliding cylinder through the cooperation between the spiral blade and the sliding cylinder, and detects the water content in the slag through the resistance change after the conductive carbon black absorbs water. When the water content of the slag is too high, the water in the blasthole can be discharged, and the compression of the slag is released after the water content in the blasthole drops to a preset value, so as to maximize the transportation efficiency of the slag and avoid reducing the transportation efficiency of the slag due to excessive compression and drying of the slag.

[0020] 3. The present invention dries the compacted inner wall of the blasthole through a high-temperature dry airflow, so that a dry waterproof layer is formed on the inner wall of the blasthole, which can not only prevent moisture in the soil layer from penetrating into the blasthole and affecting the explosives, but also further compress the compacted soil layer on the inner wall of the blasthole, and reserve cracks perpendicular to the blasthole, thereby increasing the impact force of the shock wave on the inner wall of the blasthole during blasting, and improving the refraction and reflection ability of the crack to the stress wave without affecting the starting direction of the crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a side view of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 3 is a side cross-sectional view of the present invention;

[0024] Figure 4 It is a cross-sectional view of the three-dimensional structure of the present invention;

[0025] Figure 5 is a three-dimensional structural cross-sectional view of the driving assembly in the present invention;

[0026] Figure 6 For the present invention Figure 4 A partial enlarged view of the middle A;

[0027] Figure 7 For the present invention Figure 4 A partial enlarged view of point B in the middle;

[0028] Figure 8 For the present invention Figure 3 A partial enlarged view of point C in the middle.

[0029] In the figure: 1. driving device; 2. mounting plate; 3. rotating cylinder; 4. drill bit; 5. central axis; 6. spiral sheet; 7. sliding cylinder; 8. central gear; 9. transmission gear; 10. driving gear; 11. rotating rod; 12. sliding block; 13. rotating ring; 14. sliding sleeve; 15. conductive carbon black; 16. water blocking rod; 17. drainage hole; 18. spring; 19. sliding ring; 20. support rod; 21. outer support block; 22. air flow hole; 23. rotating fan; 24. support block; 25. gas transmission channel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0031] See also Figures 1 to 8The present invention provides a technical solution: a geological drilling device for mining, comprising a driving device 1 capable of three-dimensional adjustment, a mounting plate 2 fixedly mounted at the bottom end of the driving device 1, a central axis 5 rotatably mounted in the mounting plate 2, a rotating cylinder 3 sleeved outside the central axis 5 rotatably mounted in a groove opened in the bottom end of the mounting plate 2, a drill bit 4 fixedly mounted at the end of the central axis 5 extending out of the rotating cylinder 3, and a spiral feed trough opened on the outer wall of the drill bit 4, a soil feeding gap opened between the rotating cylinder 3 and the drill bit 4, a soil discharge channel opened on the upper outer wall of the rotating cylinder 3, and a spiral piece 6 fixedly mounted on the outer wall of the central axis 5 between the soil feeding gap and the soil discharge channel;

[0032] It also includes a driving assembly, which is used to drive the central shaft 5 to rotate along its axis.

[0033] When the device is used, the drill bit 4 is first moved to the preset drilling position through the driving device 1, and the drill bit 4 is made perpendicular to the working surface. Then, the central axis 5 is driven by the driving component to drive the drill bit 4 to rotate together, and the drill bit 4 is rotated by the driving device 1 while moving in the drilling direction. When the drill bit 4 enters the soil layer, the dust and debris generated during the drilling are squeezed to the surroundings, and the debris is gathered upward through the spiral feeding trough opened on the outer wall of the drill bit 4 until the debris is immersed in the soil feeding gap between the drill bit 4 and the rotating cylinder 3. Then, the debris is transported along the central axis 5 to the upper end of the rotating cylinder 3 through the spiral blade 6 in the rotating cylinder 3 until the debris is discharged through the soil discharge channel opened on the outer wall of the rotating cylinder 3, completing the discharge of debris during the drilling process until the depth of the blasthole reaches the preset depth, and the drilling of the blasthole is completed.

[0034] In this way, by opening a soil entry gap between the drill bit 4 and the rotating cylinder 3, the debris generated by the drill bit 4 when excavating enters the rotating cylinder 3 and is transported to the outside of the blasthole along the rotating cylinder 3 through the spiral blade 6. The debris can be transported by dry soil transportation, avoiding excessive water content in the blasthole after mud circulation that affects the explosive performance or blasting effect of the explosive in the blasthole, reducing the amount of explosives used and improving the blasting effect on the working face.

[0035] Furthermore, the spiral sheet 6 is arranged in three sections, wherein the pitch and cross-section of the lower section are constant, the pitch and cross-section of the middle section are gradually reduced, the pitch of the upper section is consistent with the lower section and the cross-section is constant, a sliding cylinder 7 which can be slidably adjusted is installed in the rotating cylinder 3, and the sliding cylinder 7 is also divided into three sections which can fit with the spiral sheet 6, a plurality of groups of drainage holes 17 are provided on the inner wall of the sliding cylinder 7 corresponding to the middle section of the spiral sheet 6, a square groove which can be connected with the drainage hole 17 is provided on the inner wall of the rotating cylinder 3, a conductive carbon black 15 is fixedly installed in the square groove, and the conductive carbon black 15 is connected with the external power circuit through the circuit buried in the rotating cylinder 3.

[0036] According to the above embodiment, when the slag rises along the spiral piece 6 in the rotating cylinder 3, the Figure 3When the slag enters the middle section of the spiral sheet 6, the sliding cylinder 7 is driven to slide to the lowest end by the external component so that the inner wall of the sliding cylinder 7 is completely fitted with the outer wall of the spiral sheet 6. Since the pitch and the cross section of the fins in the middle section of the spiral sheet 6 are gradually reduced, the slag entering the middle section of the spiral sheet 6 is squeezed and compressed. If there is moisture in the slag at this time, the squeezed moisture can enter the square groove through the drainage hole 17 and be absorbed by the conductive carbon black 15. After the conductive carbon black 15 absorbs water, the water molecules will fill the gaps between the carbon black particles, resulting in closer contact between the carbon black particles, thereby reducing the resistivity. The water content in the slag can be detected by the ammeter in the external power circuit. If the water content exceeds the preset value, it is necessary to use methods such as drilling and drainage or compressed air drainage to drain the water in the blasthole, and after drainage, the blasthole is waterproofed to prevent further penetration of water into the blasthole. If there is no water in the slag or the water content does not reach the preset value, the sliding cylinder 7 is driven upward by the external component, so that the middle and lower sections of the sliding cylinder 7 correspond to the upper and middle sections of the spiral piece 6 respectively, so that the outer wall of the spiral piece 6 no longer fits the inner wall of the sliding cylinder 7, and the compression of the slag is released, so as to achieve the purpose of improving the slag transportation efficiency.

[0037] In this way, the slag in the sliding cylinder 7 is compressed by the mutual cooperation between the spiral blade 6 and the sliding cylinder 7, and the water content in the slag is detected by the resistance change after the conductive carbon black 15 absorbs water. When the water content of the slag is too high, the water in the blast hole can be discharged, and the compression of the slag is released after the water content in the blast hole is reduced to a preset value, so as to maximize the transportation efficiency of the slag and avoid reducing the transportation efficiency of the slag by the device due to excessive compression and drying of the slag.

[0038] It is worth mentioning that when the moisture content in the slag is low, the external component can be used to drive the rotating cylinder 3 to slide back and forth in the gap, so as to perform multiple segmented screening on the moisture content in the slag, so as to avoid drilling through groundwater during drilling, causing the water content in the blasthole to suddenly increase, thereby affecting the blasting effect of the explosives.

[0039] Furthermore, a rotatable rotating ring 13 is installed in the annular groove opened in the rotating cylinder 3, and a plurality of arc grooves distributed in an annular shape are opened on the outer wall of the rotating ring 13. An annular groove is also opened in the rotating cylinder 3 located below the annular groove, and a plurality of sliding blocks 12 that can slide centrifugally or centrifugally are slidably installed on the top surface of the annular groove, and a pin shaft that can slide in the arc groove is fixedly installed on the outer wall of the sliding block 12, and a rotating rod 11 is rotatably installed between the sliding block 12 and the top surface of the sliding cylinder 7.

[0040] According to the above embodiment, a specific embodiment of driving the sliding cylinder 7 to slide is provided. When the external structure such as a motor and a gear transmission drives the rotating ring 13 to rotate, refer to FIG. Figure 4 and Figure 5At this time, the sliding block 12 starts to make centrifugal or centripetal motion along the center of the circle where the axis of the rotating cylinder 3 is located under the action of the pin shaft on its outer wall. When the sliding block 12 makes centrifugal motion, the inclination angle between the rotating rod 11 and the sliding block 12 gradually increases, so the sliding cylinder 7 can be pulled up. When the sliding block 12 makes centripetal motion, the inclination angle between the rotating rod 11 and the sliding block 12 gradually approaches 90 degrees, so the sliding cylinder 7 can be driven to move down, completing the driving of the sliding cylinder 7 to slide up and down.

[0041] Furthermore, a pumping channel is opened in the central axis 5, and the pumping channel is connected to the outside through a recessed hole at the bottom of the drill bit 4. A filter is provided at the bottom of the pumping channel. The top of the central axis 5 is connected to an external pumping device, and the external pumping device is connected to the power-on circuit where the conductive carbon black 15 is located through an electrical signal.

[0042] According to the above embodiment, when the current of the circuit where the conductive carbon black 15 is located increases to exceed the preset value, the external pumping equipment extracts the water in the blast hole from the concave hole at the bottom of the drill bit 4 through the pumping channel opened in the central axis 5, and filters the mud mixed with the residue and water through the filter screen, so that large particles of residue can still enter the sliding cylinder 7 through the inlet layer, and when the mud enters the central axis 5, it will drive the inclined rotating fan 23 to rotate, continuously scraping the surface of the filter screen to prevent the filtered residue from clogging the filter screen.

[0043] Furthermore, the driving assembly includes a central gear 8 fixedly mounted on the outer wall of the central axis 5 and a rotatable driving gear 10. The inner top surface of the inner groove at the bottom end of the mounting plate 2 has two rotatable transmission gears 9 that are meshed with the central gear 8. The inner wall of the rotating cylinder 3 is provided with a gear ring that is meshed with the transmission gear 9. The driving gear 10 is driven by a servo motor mounted on the mounting plate 2.

[0044] According to the above embodiment, a specific embodiment of a driving assembly is provided. When an external driving member such as a motor and a gear drives the driving gear 10 to rotate, refer to FIG. Figure 4 When the driving gear 10 drives the central shaft 5 and the central gear 8 to rotate clockwise, the rotating cylinder 3 can be driven to rotate counterclockwise through the transmission gears 9 on both sides, that is, when the drill bit 4 rotates clockwise, the rotating cylinder 3 and the sliding cylinder 7 rotate counterclockwise together. Not only can the defects on the inner wall of the blasthole be smoothed by the outer wall of the rotating cylinder 3, so as to avoid the defects on the inner wall of the blasthole hindering the stress wave and blasting gas generated during blasting from affecting the crack length and expansion rate, thereby reducing the blasting effect, but also the transportation efficiency of the slag can be further improved by increasing the friction between the slag and the sliding cylinder 7.

[0045] Furthermore, a sliding sleeve 14 and a sliding ring 19 are slidably installed in the interlayer opened on the outer wall of the rotating cylinder 3, a spring 18 is provided between the sliding sleeve 14 and the sliding ring 19, and an outer support block 21 that can slide centrifugally or centripetally is slidably installed on the outer wall of the bottom end of the rotating cylinder 3, and the outer support block 21 is rotatably connected to the sliding sleeve 14 through a support rod 20.

[0046] According to the above embodiment, since the rotating cylinder 3 rotates in the opposite direction when the drill bit 4 rotates, the sliding ring 19 is driven by electric control or cylinder to slide along the interlayer of the outer wall of the rotating cylinder 3, and the spring 18 is compressed to push the sliding sleeve 14 to slide along the interlayer together, and the outer support block 21 is driven by the support rod 20 to slide centrifugally along the outer wall of the bottom end of the rotating cylinder and expand to fit with the inner wall of the blast hole. The outer support block 21 can be used to level the inner wall of the blast hole when the rotating cylinder 3 rotates, and because the sliding ring 19 and the sliding sleeve 14 are elastically transmitted by the spring 18, the outer support block 21 always exerts a certain pressure on the inner wall of the blast hole when it fits with the inner wall of the blast hole, so that the soil layer on the inner wall of the blast hole can be compacted, and the air in the soil layer can be discharged, so that the soil layer on the inner wall of the blast hole can reduce the absorption of the explosion shock wave by the soil layer compression during blasting, and on the basis of avoiding the influence of the inner wall defects of the blast hole on the explosion effect, the blasting effect of the explosive is further improved to enhance the shear force of the shock wave in the blast hole on the working surface.

[0047] Furthermore, a water blocking rod 16 having a smaller diameter than the drainage hole 17 is fixedly installed in the drainage hole 17 via a connecting pin, and a filter cotton is filled in the gap between the water blocking rod 16 and the drainage hole 17 .

[0048] According to the above embodiment, when the slag enters the middle section of the spiral blade 6 and is compressed, the moisture in the slag will enter the square groove where the conductive carbon black 15 is located through the drainage hole 17. By setting a water-blocking rod 16 with a diameter smaller than the drainage hole 17, it is possible to avoid the drainage hole 17 with a larger aperture being blocked by large particles of slag, so that the drainage hole 17 can be set as a hydrophobic hole with a larger aperture, thereby increasing the contact rate of moisture entering the square groove and contacting the conductive carbon black 15. The filter cotton in the gap between the water-blocking rod 16 and the drainage hole 17 can not only filter the large particles in the mud, but also play a role in blocking the drainage hole 17 when the sliding cylinder 7 slides upward.

[0049] Furthermore, a plurality of support blocks 24 are fixedly mounted on the bottom end of the rotating cylinder 3 , and the support blocks 24 are in rolling contact with the drill bit 4 via balls.

[0050] According to the above embodiment, by arranging the support block 24 in the soil gap between the rotating cylinder 3 and the drill bit 4, the installation of the rotating cylinder 3 is no longer only provided by the mounting plate 2 to provide the pulling force, and the pressure of the rotating cylinder 3 during operation can be shared by the supporting force provided by the drill bit 4, and the ball bearings between the support block 24 and the drill bit 4 can reduce the friction between the two when they rotate in opposite directions, thereby improving the stability of the device during operation.

[0051] Furthermore, a plurality of air flow holes 22 are provided in the drill bit 4, and an air supply channel 25 is provided in the rotating cylinder 3. One end of the air supply channel 25 leads to the soil gap, and the other end is connected to an external air supply device, and the air supply channel 25 passes through the square groove where the conductive carbon black 15 is located.

[0052] According to the above embodiment, when the external gas supply device delivers high-temperature dry gas to the gas delivery channel 25, the specific Figure 8 After the outer support block 21 compacts the inner wall of the blasthole by rotating, high-pressure and high-temperature dry gas is injected into the gas transmission channel 25 through the external gas supply device. When the dry gas enters the soil gap, part of the gas will enter the bottom of the drill bit 4 through the air flow hole 22, and flow out along the outer wall of the drill bit 4 and the inner wall of the blasthole. The compacted inner wall of the blasthole can be dried to form a water-proof layer on the inner wall of the blasthole, thereby preventing moisture in the soil layer from penetrating into the blasthole and affecting the explosives. The gas reaches the bottom of the drill bit 4. The gas in the groove will also be diverted to the rotating fan 23, which will blow the rotating fan 23 to accelerate its rotation when it enters the central axis 5, further improving the cleaning ability of the rotating fan 23 on the filter. At the same time, since the gas transmission channel 25 passes through the square groove where the conductive carbon black 15 is located, when the sliding cylinder 7 moves upward, that is, when the moisture content of the slag is stopped, the conductive carbon black 15 can be dried by dry gas to prevent the conductive carbon black 15 from reaching saturation after absorbing water for a long time and becoming desensitized to the increase of moisture in the soil layer, thereby improving the accuracy of moisture content monitoring.

[0053] In this way, the compacted inner wall of the blasthole is dried by a high-temperature dry airflow, so that a dry waterproof layer is formed on the inner wall of the blasthole. This can not only prevent moisture in the soil layer from penetrating into the blasthole and affecting the explosives, but also further compress the compacted soil layer on the inner wall of the blasthole, and reserve cracks perpendicular to the blasthole, thereby increasing the impact force of the shock wave on the inner wall of the blasthole during blasting, and improving the crack's refraction and reflection ability to stress waves without affecting the starting direction of the crack.

[0054] Furthermore, a plurality of grinding protrusions are integrally formed on the outer wall of the drill bit 4 .

[0055] According to the above embodiment, the outer wall of the drill bit 4 is integrally formed with a plurality of grinding protrusions, which can enhance the grinding and extrusion capabilities of the drill bit 4, so that when dealing with harder geological layers or other special geological layers, the drill bit 4 can combine drilling with grinding or impact, thereby enhancing the scope of application of the device.

[0056] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A geological drilling device for mining, comprising a driving device (1) capable of three-dimensional adjustment, characterized in that: A mounting plate (2) is fixedly mounted at the bottom end of the driving device (1), a central axis (5) is rotatably mounted in the mounting plate (2), a rotating cylinder (3) sleeved outside the central axis (5) is rotatably mounted in a groove provided in the bottom end of the mounting plate (2), a drill bit (4) is fixedly mounted on the end of the central axis (5) extending out of the rotating cylinder (3), a spiral feed trough is provided on the outer wall of the drill bit (4), a soil feeding gap is provided between the rotating cylinder (3) and the drill bit (4), a soil discharge channel is provided on the upper outer wall of the rotating cylinder (3), and a spiral blade (6) fixedly mounted on the outer wall of the central axis (5) is provided between the soil feeding gap and the soil discharge channel; It also comprises a driving assembly, which is used to drive the central shaft (5) to rotate along its axis.

2. The geological drilling equipment for mining according to claim 1, characterized in that: The spiral sheet (6) is arranged in three sections, wherein the pitch and cross section of the lower section are constant, the pitch and cross section of the middle section are gradually reduced, and the pitch of the upper section is consistent with that of the lower section and the cross section is constant. A sliding cylinder (7) capable of sliding adjustment is installed in the rotating cylinder (3), and the sliding cylinder (7) is also divided into three sections capable of fitting with the spiral sheet (6). A plurality of groups of drainage holes (17) are provided on the inner wall of the sliding cylinder (7) corresponding to the middle section of the spiral sheet (6). A square groove capable of communicating with the drainage holes (17) is provided on the inner wall of the rotating cylinder (3), and a conductive carbon black (15) is fixedly installed in the square groove, and the conductive carbon black (15) is connected to an external power circuit through a circuit buried in the rotating cylinder (3).

3. The geological drilling equipment for mining according to claim 2, characterized in that: A rotatable rotating ring (13) is installed in the annular groove provided in the rotating cylinder (3), a plurality of arc grooves distributed in an annular shape are provided on the outer wall of the rotating ring (13), an annular groove is also provided in the rotating cylinder (3) below the annular groove, a plurality of sliding blocks (12) capable of centrifugal or centrifugal sliding are slidably installed on the top surface of the annular groove, a pin shaft capable of sliding in the arc groove is fixedly installed on the outer wall of the sliding block (12), and a rotating rod (11) is rotatably installed between the sliding block (12) and the top surface of the sliding cylinder (7).

4. The geological drilling equipment for mining according to claim 3, characterized in that: A pumping channel is provided in the central axis (5), and the pumping channel is connected to the outside through a recessed hole at the bottom end of the drill bit (4). A filter is provided at the bottom end of the pumping channel. The top end of the central axis (5) is connected to an external pumping device, and the external pumping device is connected to the power supply circuit where the conductive carbon black (15) is located through an electrical signal.

5. The geological drilling equipment for mining according to claim 3, characterized in that: The driving assembly comprises a central gear (8) fixedly mounted on the outer wall of the central shaft (5) and a rotatable driving gear (10); the inner top surface of the inner groove at the bottom end of the mounting plate (2) is provided with two transmission gears (9) that are mutually meshed with the central gear (8); the inner wall of the rotating cylinder (3) is provided with a gear ring that is mutually meshed with the transmission gear (9); and the driving gear (10) is driven by a servo motor mounted on the mounting plate (2).

6. The geological drilling equipment for mining according to claim 2, characterized in that: A sliding sleeve (14) and a sliding ring (19) capable of sliding are slidably mounted in the interlayer provided on the outer wall of the rotating cylinder (3); a spring (18) is provided between the sliding sleeve (14) and the sliding ring (19); an outer support block (21) capable of centrifugal or centripetal sliding is slidably mounted on the outer wall at the bottom end of the rotating cylinder (3); the outer support block (21) is rotatably connected to the sliding sleeve (14) via a support rod (20).

7. The geological drilling equipment for mining according to claim 6, characterized in that: A water blocking rod (16) having a smaller diameter than the drainage hole (17) is fixedly installed in the drainage hole (17) via a connecting pin, and a gap between the water blocking rod (16) and the drainage hole (17) is filled with filter cotton.

8. The geological drilling equipment for mining according to claim 7, characterized in that: A plurality of support blocks (24) are fixedly mounted on the bottom end of the rotating cylinder (3), and the support blocks (24) are in rolling contact with the drill bit (4) via balls.

9. The geological drilling equipment for mining according to claim 2, characterized in that: The drill bit (4) is provided with a plurality of air flow holes (22), the rotating cylinder (3) is provided with an air delivery channel (25), one end of the air delivery channel (25) leads to the soil entry gap, and the other end is connected to an external air supply device, and the air delivery channel (25) passes through the square groove where the conductive carbon black (15) is located.

10. The geological drilling equipment for mining according to any one of claims 1 to 9, characterized in that: The outer wall of the drill bit (4) is integrally formed with a plurality of grinding protrusions.

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