Multi-rod connection and disconnection type rotary percussion auger machine

Abstract

This invention relates to the technical field of automated drilling, and more specifically, to a multi-rod unloading rotary impact auger, comprising a frame, a feed box, auger tubing, a rotating mechanism, an impact mechanism, a feeding mechanism, and a clamping mechanism. This invention can achieve cutting, impacting, penetrating, and unloading functions of multiple auger tubings according to hard or soft strata, providing the auger tubing with four independently controllable degrees of freedom: rotation, impact, feeding, and clamping. These can be combined into various drilling methods to adapt to different geological conditions and improve rock-breaking efficiency. The methods include forced-in drilling, rotary drilling, and rotary impact drilling. This easily achieves reliable unloading and rotary impact functions for multiple auger tubings drilling into the strata, effectively solving the technical problems of existing technologies such as unsuitability for rotary impact drilling with auger tubing, inability to reliably unload multiple auger tubings, low and non-adjustable impact energy, and difficulty in precisely and independently controlling the movement of each mechanism.

Description

Technical Field

[0001] This invention relates to the technical field of automated drilling, and more specifically, to a multi-rod detachable rotary impact auger drill. Background Technology

[0002] Geological drilling is an indispensable tool for studying the Earth's continental and oceanic crust, and even the surfaces of extraterrestrial bodies. It is of great significance for research on planetary mineral resources, geological structures, and the origin of life. To achieve ultra-deep drilling, multi-tube drilling is currently the most widely studied drilling method. For hard rock formations, rotary drilling is insufficient to break the rock; the most effective method is to add impact drilling to rotary drilling. Meanwhile, auger drills exhibit excellent cuttings removal performance, enabling them to penetrate rock formations with lower power consumption and drilling pressure. Researching a novel multi-tube detachable rotary impact auger drilling platform has significant scientific research and engineering application value.

[0003] A percussion drill and a percussion drilling machine having the percussion drill are disclosed. The percussion drill includes an annular cylinder, an annular piston, and a force-applying biasing component. The annular cylinder has an annular cavity with upper and lower openings. A traction cable is connected to the annular cylinder, and a hammer is mounted at its lower end. The annular piston is disposed within the annular cavity and slidably connected to the annular cylinder. The force-applying biasing component is disposed between the annular cylinder and the annular piston, and can apply a biasing force to the annular cylinder that is downward relative to the annular piston and to the annular piston that is upward relative to the annular cylinder.

[0004] However, the above-mentioned solutions have technical problems such as being unsuitable for installing auger pipes to achieve rotary impact drilling, being unable to reliably connect and disconnect multiple auger pipes, having relatively low and non-adjustable impact energy, and having difficulty in accurately and independently controlling the movement of each mechanism. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, such as being unsuitable for installing auger pipes to achieve rotary impact drilling, being unable to reliably connect and disconnect multiple auger pipes, having low and non-adjustable impact energy, and having difficulty in accurately and independently controlling the movement of each mechanism, and to provide a multi-rod connection and disconnection rotary impact auger drill.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A multi-rod detachable rotary impact auger drill includes a frame, a feed box movably mounted on the frame, an auger tube disposed at the bottom of the feed box, a rotating mechanism disposed within the feed box for driving the auger tube to rotate, an impact mechanism disposed within the feed box for providing impact force to the auger tube, a feed mechanism disposed on the frame for controlling the vertical movement of the feed box, and a clamping mechanism disposed on the frame for clamping the auger tube; the impact mechanism includes an impact base rotatably disposed at the bottom of the feed box, the impact base... The bottom has a connector that passes through the feed box, and the outer wall of the connector has a limiting protrusion; one end of the spiral drill pipe has a T-shaped groove on its inner wall, the T-shaped groove including a vertical groove and a horizontal groove, the limiting protrusion can be inserted from the vertical groove into the horizontal groove and slide between the two ends of the horizontal groove; one end of the spiral drill pipe with the T-shaped groove has an external thread on its outer wall, and the other end has an internal thread on its inner wall that can be connected to the external thread; the clamping mechanism can clamp the second spiral drill pipe from top to bottom in the drill string formed by connecting the spiral drill pipes.

[0008] This invention discloses a multi-rod detachable rotary impact auger drill. A rotating mechanism drives the auger tube to rotate, enabling it to perform helical drilling. A feeding mechanism controls the vertical movement of the feed box to control the feed rate. An impact mechanism provides impact force to the auger tube. Since the auger tube can be sequentially threaded to the external thread at one end and the internal thread at the other, when the limiting protrusion on the outer wall of the connector is inserted from the vertical groove into the horizontal groove and abuts against either end of the horizontal groove, the clamping mechanism clamps the second auger tube from top to bottom. At this time, the rotating mechanism drives the auger tube to rotate in the opposite direction of helical drilling until the limiting protrusion aligns with the vertical groove. Then, the feeding mechanism drives the feed box to move upwards, allowing the uppermost auger tube to be connected from the first... The two auger pipes automatically unscrew at the top, enabling automatic disassembly of the auger pipes. Similarly, automatic installation between auger pipes can also be achieved. This invention enables the cutting, impact, penetration, and unloading functions of multiple auger pipes according to hard or soft strata. It provides the auger pipes with four independently controllable degrees of freedom: rotation, impact, feed, and clamping. These can be combined into various drilling methods to adapt to the drilling requirements of different strata properties and improve rock breaking efficiency. These methods include push-in drilling, rotary drilling, and rotary impact drilling. It easily achieves reliable unloading and rotary impact functions for multiple auger pipes drilling into the strata, effectively solving the technical problems of existing technologies that are not suitable for installing auger pipes to achieve rotary impact drilling, cannot reliably unload multiple auger pipes, have low and non-adjustable impact energy, and are difficult to accurately and independently control the movement of each mechanism.

[0009] Furthermore, the impact mechanism includes a fixed cylinder fixedly disposed on the top of the feed box, a rotating column coaxially disposed within the fixed cylinder, an impact motor disposed on the top of the fixed cylinder for driving the rotating column to rotate, a rotating pin rotatably disposed at the bottom of the rotating column, a cylindrical cam coaxially sleeved on the outer wall of the rotating column, a spring spring disposed between the top of the cylindrical cam and the fixed cylinder for providing downward elastic force to the cylindrical cam, and an impact hammer sleeved on the outer wall of the cylindrical cam; the impact base is disposed below the impact hammer, and the rotating pin can rotate along the lower end face of the cylindrical cam to make the cylindrical cam move upward relative to the rotating column and move freely to the ground. Because the rotating pin located on the rotating column can rotate along the lower end face of the cylindrical cam, causing the cylindrical cam to move upward relative to the rotating column and freely fall to the ground, as the rotating pin causes the cylindrical cam to move upward, the cylindrical cam continuously compresses the elastic spring. The cylindrical cam experiences an increasing downward elastic force until the rotating pin causes the cylindrical cam to reach its apex and freely fall to the ground. At this moment, the elastic potential energy of the elastic spring and the gravitational potential energy of the cylindrical cam itself are concentrated on the impact hammer, and finally released onto the impact base to complete the impact. This invention uses the cylindrical cam as a driven member, and by utilizing the upward movement of the cylindrical cam to simultaneously accumulate the elastic potential energy of the elastic spring and the gravitational potential energy of the cylindrical cam itself, the impact force released by the impact hammer onto the impact base is greatly improved.

[0010] Furthermore, the bottom of the cylindrical cam is provided with several sets of guide platforms that are connected end to end and arranged around the axis of the rotating column. The guide platforms form a sinusoidal curved surface from the starting end to the ending end, which allows the cylindrical cam to rise vertically. The end of one set of guide platforms to the starting end of another set of guide platforms forms a straight curved surface step, which allows the cylindrical cam to fall vertically. The rotating pin is radially inserted through the rotating column and its two ends can rotate along the lower end face of several sets of guide platforms respectively. Since the rotating pin is radially inserted through the rotating column and its two ends can rotate along the lower end face of several sets of guide platforms, when the rotating pin moves from the starting end to the ending end on the guide platform, the cylindrical cam can gradually rise without generating impact loads when the rotating pin moves along the guide platform, thus avoiding damage caused by contact fatigue due to long-term operation. The straight curved step from the end of one set of guide platforms to the starting end of another set of guide platforms forms a straight curved step that allows the cylindrical cam to fall vertically. The cylindrical cam can fall vertically directly from the highest point, releasing all potential energy to the maximum extent.

[0011] Furthermore, the fixed cylinder includes a limiting seat fixed to the top of the feed box and a limiting cylinder disposed below the limiting seat. An abutment shoulder for limiting the rise of the cylindrical cam is formed between the limiting cylinder and the limiting seat. A first bearing is provided on the inner wall of the bottom of the limiting cylinder, and the inner wall of the first bearing is sleeved on the outer wall of the impact base. A plurality of tension springs for providing downward pulling force to the impact hammer are provided between the impact hammer and the limiting cylinder. The limiting cylinder is provided with a tension spring fixing shaft. A tension spring connecting member is fixed above the tension spring fixing shaft of the impact hammer. One end of the tension spring is connected to the tension spring connecting member and the other end is connected to the tension spring fixing shaft. Because a shoulder is formed between the limiting cylinder and the limiting seat to limit the upward movement of the cylindrical cam, the upward limit position of the cylindrical cam can be limited. The first bearing is provided on the inner wall of the bottom of the limiting cylinder. Since the inner wall of the first bearing is sleeved on the outer wall of the impact base, it serves two purposes: firstly, to prevent the limiting cylinder from rotating with the impact base when the impact base rotates, thereby preventing the tension spring from rotating with it; secondly, to abut against the impact base and prevent the impact base from being pushed open by the drilling pressure when the auger is drilling. The tension spring is set between the tension spring connector of the impact hammer and the tension spring fixing shaft of the limiting cylinder, increasing the elastic potential energy of the impact hammer and thus increasing the impact force. The elastic potential energy can be changed by increasing or decreasing the number of springs to adjust the magnitude of the impact force.

[0012] Furthermore, a spring pressure block is provided at the top of the cylindrical cam, and the lower end face of the elastic spring abuts against the spring pressure block. Several adjusting weights are stacked on the spring pressure block. By stacking several adjusting weights on the spring pressure block at the top of the cylindrical cam, the gravity of the cylindrical cam can be adjusted. By increasing or decreasing the number of adjusting weights, the gravitational potential energy can be changed to further adjust the magnitude of the impact force.

[0013] Furthermore, the clamping mechanism includes a clamping seat disposed on the frame, a plurality of jaws disposed on the clamping seat, and a clamping drive device disposed on the frame for driving the plurality of jaws to grip; the clamping seat has an opening for accommodating the auger tube through which it passes, and the plurality of jaws are distributed around the opening. The clamping drive device drives the plurality of jaws to grip the auger tube passing through the opening, and the plurality of jaws are distributed around the opening, thereby achieving multi-directional clamping of the auger tube.

[0014] Furthermore, the clamping drive device includes a clamping motor mounted on the frame, a lead screw connected to the output shaft of the clamping motor, several first sliders movably mounted in the clamping seat, a second slider mounted at the bottom of the first sliders and at the top of the gripper, and a hollow gear coaxially mounted in the clamping seat; the first sliders are provided with teeth that mesh with the hollow gear, and the first sliders and the second sliders are mutually meshed with helical teeth that make their movement directions perpendicular; the lead screw is threadedly connected to one set of first sliders, and the axial direction of the lead screw is parallel to the tangential direction of the hollow gear; the other sets of first sliders are slidably connected to a guide shaft mounted in the clamping seat, and the two ends of the guide shaft are provided with retaining rings for limiting the movement, and the axial direction of the guide shaft is parallel to the tangential direction of the hollow gear. Since the axial direction of the lead screw is parallel to the tangential direction of the hollow gear, when the clamping motor drives the lead screw to rotate, one set of first sliders threadedly connected to the lead screw moves along the axial direction of the lead screw. Since the first sliders have teeth that mesh with the hollow gear, the hollow gear rotates around the opening under the drive of the teeth. The teeth of the other first sliders are driven by the rotation of the hollow gear, causing the other first sliders to move axially along a guide shaft whose axial direction is parallel to the tangential direction of the hollow gear. The retaining rings at both ends of the guide shaft can help limit the guide shaft to prevent it from slipping out of the clamping seat. Since the first slider and the second slider mesh with helical teeth that make their movement directions perpendicular, the second slider will move radially along the opening, thereby driving the jaws located at the bottom of the second slider to move radially along the opening to achieve the clamping action of the spiral drill pipe.

[0015] Furthermore, the first slider is slidably equipped with an adjusting member, which can move radially relative to the first slider along the opening. The gripper can be fixed to the adjusting member by screw threads. The first slider and the gripper are engaged with each other by uniformly distributed corrugated grooves. Since the adjusting member can move radially relative to the first slider along the opening, the distance between the gripper and the adjusting member in the radial direction of the opening can be changed by screw threads, thereby adjusting the gripping range of the gripper. The uniformly distributed corrugated grooves that engage the slider and the gripper can increase the friction between them and prevent slippage after fixing.

[0016] Furthermore, the feeding mechanism includes a feed motor mounted on the frame, a take-up drum connected to the output shaft of the feed motor, a first cable with one end connected to the outer wall of the take-up drum and the other end connected to a first tension sensor, a first spool rotatably mounted on the feed box, a second spool rotatably mounted on the top of the frame, and several sets of sliding shafts vertically mounted on the frame and slidably connected to the feed box. The first tension sensor is fixedly mounted on the top of the frame. The first and second spools are axially horizontally arranged, and the first cable passes sequentially from one end of the first tension sensor around the lower half of the outer wall of the first spool and the upper half of the outer wall of the second spool. Since one end of the first cable is connected to the outer wall of the take-up drum and the other end is connected to the first tension sensor on the top of the frame, and the first cable passes sequentially around the lower half of the outer wall of the first spool and the upper half of the outer wall of the second spool from one end of the first tension sensor, and the first and second spools are axially horizontally arranged, the vertical movement of the feed box can be achieved simply by controlling the rotation of the take-up drum through the feed motor. The first tension sensor can detect the force of the feed box feeding up and down. The feed box is slidably connected to the vertically arranged sliding shaft to ensure that the feed box moves vertically in a straight line.

[0017] Furthermore, the feeding mechanism also includes a third spool rotatably mounted on the feed box, a fourth spool rotatably mounted on the bottom of the frame, and a second cable with one end connected to a second tension sensor and the other end connected to the outer wall of the take-up drum. The second tension sensor is located at the bottom of the frame. The third and fourth spools are axially horizontally arranged, the take-up drum is placed between the second and fourth spools, and the second cable passes sequentially from one end of the second tension sensor around the upper half of the outer wall of the third spool and the lower half of the outer wall of the fourth spool. A second cable is provided, with one end connected to a second tension sensor at the bottom of the frame and the other end connected to the outer wall of the take-up drum. One end of the cable passes sequentially around the upper half of the outer wall of the third spool and the lower half of the outer wall of the fourth spool. Since the third and fourth spools are axially horizontal and the take-up drum is positioned between the second and fourth spools, when the feed box needs to move downward, the take-up drum will tighten the second cable while releasing the first cable. The second cable can provide a downward pulling force to the feed box through the third spool. The second tension sensor can work with the first tension sensor to more accurately detect the force of the feed box's vertical feed.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention enables the cutting, impacting, penetrating, and unloading functions of multiple auger drill pipes in hard or soft formations. It provides the auger drill pipes with four independently controllable degrees of freedom: rotation, impact, feed, and clamping. These can be combined into various drilling methods to adapt to the drilling requirements of different formation properties and improve rock breaking efficiency. The methods include push-in drilling, rotary drilling, and rotary impact drilling. This invention easily achieves reliable unloading and rotary impact functions for multiple auger drill pipes drilling into the formation, effectively solving the technical problems in the prior art, such as the inapplicability of installing auger drill pipes for rotary impact drilling, the inability to reliably unload multiple auger drill pipes, the small and non-adjustable impact energy, and the difficulty in accurately and independently controlling the movement of each mechanism. Attached Figure Description

[0020] Figure 1 A schematic diagram of the structure of a multi-rod detachable rotary impact auger drill.

[0021] Figure 2 This is a schematic diagram showing the mating state of the connector and the auger pipe;

[0022] Figure 3 This is a schematic diagram of the structure of a spiral drill pipe;

[0023] Figure 4 This is a schematic diagram of the impact mechanism and the rotation mechanism;

[0024] Figure 5 This is a schematic diagram showing the engagement state of the cylindrical cam and the rotating pin.

[0025] Figure 6 A schematic diagram of the clamping mechanism from a structural perspective;

[0026] Figure 7 This is a schematic diagram of the clamping drive device.

[0027] Figure 8 A schematic diagram of the clamping mechanism from a second perspective;

[0028] Figure 9 A structural diagram from the perspective of the feed mechanism;

[0029] Figure 10 A schematic diagram of the feed mechanism from a second perspective;

[0030] Figure 11 This is a schematic diagram of the structure of a multi-rod detachable rotary impact auger drill from a second perspective.

[0031] In the attached diagram: 1. Fixed cylinder; 101. Limiting seat; 102. Limiting cylinder; 103. Abutting shoulder; 104. First bearing; 105. Tension spring fixing shaft; 106. Tension spring connecting piece; 2. Rotating column; 3. Impact motor; 4. Rotating pin; 5. Cylindrical cam; 501. Spring pressure block; 51. Guide table; 511. Sine curved surface; 512. Straight curved surface step; 6. Elastic spring; 7. Impact hammer; 8. Impact mechanism; 80. Impact base; 81. Connector; 82. Limiting protrusion; 9. Tension spring; 10. Adjusting weight; 11. Frame; 12. Feed box; 13. Feed mechanism; 131. Feed motor; 132. Rewind drum; 133. First cable; 134. First reel; 135. Second reel; 136. Third reel; 137. Fourth reel; 138. Second cable; 14. Rotation mechanism; 15. Spiral drill pipe; 151. T-groove; 152. Vertical groove; 153. Horizontal groove; 154. External thread; 155. Internal thread; 156. Helical blade; 16. Clamping mechanism; 161. Clamping seat; 162. Gripper; 163. Opening; 164. Limiting rail; 17. Clamping drive device; 171. Clamping motor; 172. Lead screw; 173. First slider; 174. Second slider; 175. Hollow gear; 17 6. Gear teeth; 177. Helical teeth; 178. Guide shaft; 179. Retaining ring; 180. Limiting groove; 18. Sliding shaft; 19. Adjusting component; 20. Wave groove; 21. First tension sensor; 22. Second tension sensor; 23. Second bearing; 24. First gear; 25. Rotary motor; 26. Dynamic torque sensor; 27. Rotating shaft; 28. Third bearing; 29. ​​Second gear; 30. Cable displacement sensor. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0033] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] Example 1

[0035] like Figures 1 to 5 The image shows a first embodiment of a multi-rod detachable rotary impact auger drill according to the present invention.

[0036] A multi-rod detachable rotary impact auger drill includes a frame 11, a feed box 12 movably mounted on the frame 11, an auger tube 15 located at the bottom of the feed box 12, a rotating mechanism 14 located within the feed box 12 for driving the rotation of the auger tube 15, an impact mechanism 8 located within the feed box 12 for providing impact force to the auger tube 15, a feed mechanism 13 located on the frame 11 for controlling the vertical movement of the feed box 12, and a clamping mechanism 16 located on the frame 11 for clamping the auger tube 15; the impact mechanism 8 includes an impact base 80 rotatably mounted at the bottom of the feed box 12, the bottom of the impact base 80 having a through-hole for the feed box 15. The connector 81 of the feed box 12 has a limiting protrusion 82 on its outer wall; the inner wall of one end of the spiral drill pipe 15 has a T-shaped groove 151, which includes a vertical groove 152 and a horizontal groove 153. The limiting protrusion 82 can be inserted from the vertical groove 152 into the horizontal groove 153 and slide between the two ends of the horizontal groove 153; the outer wall of one end of the spiral drill pipe 15 with the T-shaped groove 151 has an external thread 154, and the inner wall of the other end has an internal thread 155 that can be connected to the external thread 154; the clamping mechanism 16 can clamp the second spiral drill pipe 15 from top to bottom in the drill string formed by connecting spiral drill pipes 15. The impact mechanism 8 includes a fixed cylinder 1 fixedly mounted on the top of the feed box 12, a rotating column 2 coaxially mounted inside the fixed cylinder 1, an impact motor 3 mounted on the top of the fixed cylinder 1 for driving the rotating column 2 to rotate, a rotating pin 4 rotatably mounted on the bottom of the rotating column 2, a cylindrical cam 5 coaxially mounted on the outer wall of the rotating column 2, a spring spring 6 located between the top of the cylindrical cam 5 and the fixed cylinder 1 for providing downward elastic force to the cylindrical cam 5, and an impact hammer 7 mounted on the outer wall of the cylindrical cam 5; the impact base 80 is located below the impact hammer 7, and the rotating pin 4 can rotate along the lower end face of the cylindrical cam 5 to make the cylindrical cam 5 move upward relative to the rotating column 2 and move freely to the ground. The cylindrical cam 5 has several sets of guide platforms 51 connected end to end and arranged around the axis of the rotating column 2 at its bottom. The guide platforms 51 form a sinusoidal curved surface 511 from the starting end to the end, which allows the cylindrical cam 5 to rise vertically. The end of one set of guide platforms 51 to the starting end of another set of guide platforms 51 forms a straight curved surface step 512, which allows the cylindrical cam 5 to fall vertically. The rotating pin 4 is radially inserted through the rotating column 2 and its two ends can rotate along the lower end face of several sets of guide platforms 51 respectively.The fixed cylinder 1 includes a limiting seat 101 fixed to the top of the feed box 12 and a limiting cylinder 102 disposed below the limiting seat 101. A shoulder 103 is formed between the limiting cylinder 102 and the limiting seat 101 to limit the upward movement of the cylindrical cam 5. A first bearing 104 is provided on the inner wall of the bottom of the limiting cylinder 102, and the inner wall of the first bearing 104 is sleeved on the outer wall of the impact base 80. Several tension springs 9 are provided between the impact hammer 7 and the limiting cylinder 102 to provide downward pulling force to the impact hammer 7. The limiting cylinder 102 is provided with a tension spring fixing shaft 105. A tension spring connector 106 is fixed above the tension spring fixing shaft 105 on the impact hammer 7. One end of the tension spring 9 is connected to the tension spring connector 106, and the other end is connected to the tension spring fixing shaft 105. A spring pressure block 501 is provided at the top of the cylindrical cam 5. The lower end face of the spring 6 abuts against the spring pressure block 501, and several adjusting weights 10 are stacked on the spring pressure block 501.

[0037] In this embodiment, as Figures 1 to 3 As shown, the rotating mechanism 14 drives the auger tube 15 to rotate, enabling the auger tube 15 to perform auger drilling. The feed mechanism 13 controls the vertical movement of the feed box 12 to control the feed rate. The impact mechanism 8 provides impact force to the auger tube 15. Since the auger tube 15 can be sequentially threaded and fixed by the external thread 154 at one end and the internal thread 155 at the other end, when the limiting protrusion 82 on the outer wall of the connector 81 is inserted from the vertical groove 152 into the horizontal groove 153 and abuts against either end of the horizontal groove 153, the clamping mechanism 16 clamps the second auger tube 15 from top to bottom. At this time, the rotating mechanism 14 drives the auger tube 15 to rotate in the opposite direction of auger drilling until the limiting protrusion 82 aligns with the vertical groove 152. Then, the feed mechanism 13 drives the feed box 12 to move upward, and the uppermost auger tube 15... The second auger pipe 15 can be automatically unscrewed from above, enabling automatic disassembly of the auger pipe 15. Similarly, automatic installation between auger pipes 15 is also possible. This invention can achieve cutting, impact, penetration, and connection / disconnection functions of multiple auger pipes 15 according to hard or soft strata. It provides the auger pipes 15 with four independently controllable degrees of freedom: rotation, impact, feed, and clamping. These can be combined into various drilling methods to adapt to drilling requirements of different strata properties and improve rock breaking efficiency. These methods include push-in drilling, rotary drilling, and rotary impact drilling. It easily achieves reliable connection / disconnection and rotary impact functions for multiple auger pipes 15 drilling into the strata, effectively solving the technical problems in the prior art, such as the inability to install auger pipes 15 for rotary impact drilling, the inability to reliably connect / disconnect multiple auger pipes 15, the small and non-adjustable impact energy, and the difficulty in accurately and independently controlling the movement of each mechanism.

[0038] Furthermore, in this embodiment, such as Figure 2As shown, the spiral drill pipe 15 is a circular pipe with spiral blades 156 on the outer ring, and the drill cuttings can be discharged upward along the spiral blades 156.

[0039] In this embodiment, as Figure 4 As shown, since the rotating pin 4, which is mounted on the rotating column 2, can rotate along the lower end face of the cylindrical cam 5, the cylindrical cam 5 moves upward relative to the rotating column 2 and falls freely to the ground. As the rotating pin 4 moves the cylindrical cam 5 from bottom to top, the cylindrical cam 5 continuously compresses the elastic spring 6. The cylindrical cam 5 is subjected to an increasing downward elastic force until the rotating pin 4 causes the cylindrical cam 5 to reach its apex and fall freely to the ground. At this moment, the elastic potential energy of the elastic spring 6 and the gravitational potential energy of the cylindrical cam 5 are concentrated on the impact hammer 7 and finally released onto the impact base 80 to complete the impact. This invention uses the cylindrical cam 5 as a driven member and utilizes the upward movement of the cylindrical cam 5 to simultaneously accumulate the elastic potential energy of the elastic spring 6 and the gravitational potential energy of the cylindrical cam 5, which greatly improves the impact force released by the impact hammer 7 onto the impact base 80.

[0040] In this embodiment, as Figure 5 As shown, since the rotating pin 4 is radially inserted through the rotating column 2 and its two ends can rotate along the lower end face of several sets of guide platforms 51 respectively, when the rotating pin 4 moves from the starting end to the end on the guide platform 51, since this section is a smooth sinusoidal curved surface 511, the cylindrical cam 5 can gradually rise without generating impact load when the rotating pin 4 moves along the guide platform 51, thus avoiding contact fatigue and damage caused by long-term work; and a straight curved surface step 512 is formed from the end of one set of guide platforms 51 to the starting end of another set of guide platforms 51, which allows the cylindrical cam 5 to fall vertically, so that the cylindrical cam 5 can fall vertically directly from the highest point, releasing all potential energy to the maximum extent.

[0041] In this embodiment, as Figure 4 As shown, since a shoulder 103 is formed between the limiting cylinder 102 and the limiting seat 101 to limit the rise of the cylindrical cam 5, the limit position of the rise of the cylindrical cam 5 can be limited; the first bearing 104 is provided on the inner wall of the bottom of the limiting cylinder 102. Since the inner wall of the first bearing 104 is sleeved on the outer wall of the impact base 80, on the one hand, it is to prevent the limiting cylinder 102 from rotating with the impact base 80 when the impact base 80 rotates, thereby preventing the tension spring 9 from rotating with it. On the other hand, it can abut against the impact base 80 to prevent the impact base 80 from being pushed open by the drilling pressure when the spiral drill pipe 15 is drilling; the tension spring 9 is provided between the tension spring connector 106 of the impact hammer 7 and the tension spring fixing shaft 105 of the limiting cylinder 102, which increases the elastic potential energy of the impact hammer 7 and thus increases the impact force. The elastic potential energy can be changed by increasing or decreasing the number of elastic springs 6 to adjust the magnitude of the impact force.

[0042] In this embodiment, as Figure 4As shown, the weight of the cylindrical cam 5 is adjusted by stacking several adjusting weights 10 on the spring block 501 at the top of the cylindrical cam 5. The gravitational potential energy can be changed by increasing or decreasing the number of adjusting weights 10 to further adjust the magnitude of the impact force.

[0043] Furthermore, in this embodiment, such as Figure 4 As shown, the bottom of the impact base 80 is fitted with a second bearing 23 fixed to the feed box 12, and the outer ring of the impact base 80 is fitted with a first gear 24; the rotating mechanism 14 includes a rotary motor 25 fixed to the top of the feed box 12, a dynamic torque sensor 26 connected to the output shaft of the rotary motor 25 at one end, and a rotating shaft 27 connected to the other end of the dynamic torque sensor 26. The bottom of the rotating shaft 27 is fitted with a third bearing 28 fixed to the feed box 12, and the outer wall of the rotating shaft 27 is fitted with a second gear 29 that meshes with the first gear 24.

[0044] Example 2

[0045] like Figures 6 to 8 The image shows a second embodiment of a multi-rod detachable rotary impact auger drill according to the present invention.

[0046] This embodiment is similar to Embodiment 1, except that: the clamping mechanism 16 includes a clamping seat 161 disposed on the frame 11, a plurality of jaws 162 disposed on the clamping seat 161, and a clamping drive device 17 disposed on the frame 11 for driving the plurality of jaws 162 to grip; the clamping seat 161 is provided with an opening 163 for accommodating the passage of the spiral drill pipe 15, and the plurality of jaws 162 are distributed around the opening 163. The clamping drive device 17 includes a clamping motor 171 mounted on the frame 11, a lead screw 172 connected to the output shaft of the clamping motor 171, several first sliders 173 movably mounted in the clamping seat 161, second sliders 174 mounted at the bottom of the first sliders 173 and at the top of the gripper 162, and a hollow gear 175 coaxially mounted in the clamping seat 161. The first sliders 173 are provided with gear teeth 176 that mesh with the hollow gear 175, and the first sliders 173 and the second sliders 174 are mutually meshed with helical teeth 177 that make their movement directions perpendicular. The lead screw 172 is threadedly connected to one group of first sliders 173, and the axial direction of the lead screw 172 is parallel to the tangent direction of the hollow gear 175. The other groups of first sliders 173 are slidably connected to a guide shaft 178 mounted in the clamping seat 161. The two ends of the guide shaft 178 are provided with retaining rings 179 for limiting the movement, and the axial direction of the guide shaft 178 is parallel to the tangent direction of the hollow gear 175. The first slider 173 is slidably provided with an adjusting member 19, which can move radially relative to the first slider 173 along the opening 163. The gripper 162 can be fixed to the adjusting member 19 by screw threads. The first slider 173 and the gripper 162 are engaged with each other by uniformly distributed corrugated grooves.

[0047] In this embodiment, as Figure 6 As shown, the clamping drive device 17 drives several jaws 162 to grip the auger tube 15 passing through the opening 163, and the jaws 162 are distributed around the opening 163 to achieve multi-directional clamping of the auger tube 15.

[0048] In this embodiment, as Figure 7 As shown, since the axial direction of the lead screw 172 is parallel to the tangential direction of the hollow gear 175, when the clamping motor 171 drives the lead screw 172 to rotate, one set of first sliders 173 threadedly connected to the lead screw 172 moves along the axial direction of the lead screw 172. Because the first sliders 173 are provided with teeth 176 meshing with the hollow gear 175, the hollow gear 175 rotates around the opening 163 under the drive of the teeth 176. The teeth 176 of the other first sliders 173 are driven by the rotation of the hollow gear 175, causing the other first sliders 173 to move along the axial direction of the lead screw 172. The guide shaft 178, whose axis is parallel to the tangent direction of the hollow gear 175, moves axially. The retaining rings 179 at both ends of the guide shaft 178 can help limit the guide shaft 178 to prevent it from slipping out of the clamping seat 161. Since the first slider 173 and the second slider 174 mesh with each other and have helical teeth 177 that make their movement directions perpendicular, the second slider 174 will move radially along the opening 163, thereby driving the jaw 162 located at the bottom of the second slider 174 to move radially along the opening 163 to achieve the clamping action of the spiral drill pipe 15.

[0049] In this embodiment, as Figure 7 As shown, since the adjusting member 19 can move radially relative to the first slider 173 along the opening 163, the gripper 162 can be fixed to the adjusting member 19 by screw threads to change the distance of the gripper 162 in the radial direction of the opening 163, thereby realizing the adjustment of the gripping range of the gripper 162; the uniformly distributed wave grooves that engage with the slider and the gripper 162 can increase the friction between the two and prevent slippage after fixing.

[0050] Furthermore, in this embodiment, such as Figure 8 As shown, the clamping seat 161 is provided with a limiting rail 164, and the second slider 174 is provided with limiting grooves 180 on both sides that are slidably connected to the limiting rail 164. The limiting grooves 180 are used to limit the movement direction of the second slider 174, so that the second slider 174 can slide stably in the radial direction of the opening 163 without being affected by other external forces.

[0051] Example 3

[0052] like Figures 9 to 11 The image shows a third embodiment of a multi-rod disassembly rotary impact auger drill according to the present invention.

[0053] This embodiment is similar to Embodiment 1 or Embodiment 2, except that: the feeding mechanism 13 includes a feeding motor 131 mounted on the frame 11, a take-up drum 132 connected to the output shaft of the feeding motor 131, a first cable 133 with one end connected to the outer wall of the take-up drum 132 and the other end connected to a first tension sensor 21, a first reel 134 rotatably mounted on the feed box 12, a second reel 135 rotatably mounted on the top of the frame 11, and several sets of sliding shafts 18 vertically mounted on the frame 11 and slidably connected to the feed box 12. The first tension sensor 21 is fixedly mounted on the top of the frame 11. The first reel 134 and the second reel 135 are axially horizontally arranged. The first cable 133 passes through the lower half of the outer wall of the first reel 134 and the upper half of the outer wall of the second reel 135 from one end of the first tension sensor 21. The feeding mechanism 13 further includes a third spool 136 rotatably mounted on the feed box 12, a fourth spool 137 rotatably mounted on the bottom of the frame 11, and a second cable 138 with one end connected to a second tension sensor 22 and the other end connected to the outer wall of the take-up drum 132. The second tension sensor 22 is located at the bottom of the frame 11. The third spool 136 and the fourth spool 137 are axially horizontally arranged. The take-up drum 132 is placed between the second spool 135 and the fourth spool 137. The second cable 138 passes through the upper half of the outer wall of the third spool 136 and the lower half of the outer wall of the fourth spool 137 from one end of the second tension sensor 22.

[0054] In this embodiment, as Figure 9 As shown, since one end of the first cable 133 is connected to the outer wall of the take-up drum 132 and the other end is connected to the first tension sensor 21 on the top of the frame 11, and the first cable 133 passes through the lower half of the outer wall of the first spool 134 and the upper half of the outer wall of the second spool 135 from one end of the first tension sensor 21, and the first spool 134 and the second spool 135 are axially horizontally arranged, the vertical movement of the feed box 12 can be achieved by controlling the rotation of the take-up drum 132 through the feed motor 131. The first tension sensor 21 can detect the force of the feed box 12 feeding up and down. The feed box 12 is slidably connected to the vertically arranged sliding shaft 18 to ensure that the feed box 12 moves vertically in a straight line.

[0055] In this embodiment, as Figure 10As shown, a second cable 138 is provided, with one end connected to the bottom of the frame 11 and the other end connected to the outer wall of the take-up drum 132. One end of the cable passes sequentially around the upper half of the outer wall of the third reel 136 and the lower half of the outer wall of the fourth reel 137. Since the third reel 136 and the fourth reel 137 are axially horizontally arranged and the take-up drum 132 is placed between the second reel 135 and the fourth reel 137, when the feed box 12 needs to move downward, the take-up drum 132 will tighten the second cable 138 while releasing the first cable 133. The second cable 138 can provide a downward pulling force to the feed box 12 through the third reel 136. The second tension sensor 22 can work with the first tension sensor 21 to more accurately detect the force of the feed box 12 moving up and down.

[0056] Furthermore, in this embodiment, such as Figure 11 As shown, the frame 11 is equipped with a pull rope displacement sensor 30. One end of the pull rope displacement sensor 30 is fixed to the frame 11, and the other end can be pulled by a rope. It is fixed to the bottom end of the feed box 12 and can detect all the movement strokes of the feed box 12 on the slide shaft 18.

[0057] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0058] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A multi-rod detachable rotary impact auger drill, characterized in that: Includes a frame (11), a feed box (12) movably mounted on the frame (11), a spiral drill pipe (15) located at the bottom of the feed box (12), a rotating mechanism (14) located within the feed box (12) for driving the spiral drill pipe (15) to rotate, an impact mechanism (8) located within the feed box (12) for providing impact force to the spiral drill pipe (15), a feed mechanism (13) located on the frame (11) for controlling the vertical movement of the feed box (12), and a clamping mechanism (16) located on the frame (11) for clamping the spiral drill pipe (15); The impact mechanism (8) includes an impact base (80) rotatably disposed at the bottom of the feed box (12). The bottom of the impact base (80) has a connector (81) that passes through the feed box (12). The outer wall of the connector (81) is provided with a limiting protrusion (82). One end of the spiral drill pipe (15) is provided with a T-shaped groove (151). The T-shaped groove (151) includes a vertical groove (152) and a horizontal groove (153). The limiting protrusion (82) can be inserted from the vertical groove (152) into the horizontal groove (153) and slide between the two ends of the horizontal groove (153). The spiral drill pipe (15) has an external thread (154) on the outer wall of one end of a T-shaped groove (151) and an internal thread (155) on the inner wall of the other end that can be connected to the external thread (154); the clamping mechanism (16) can clamp the second spiral drill pipe (15) from top to bottom in the drill string formed by connecting the spiral drill pipes (15); the impact mechanism (8) includes a fixed cylinder (1) fixedly installed on the top of the feed box (12), a rotating column (2) coaxially installed in the fixed cylinder (1), and an impact electric shock device installed on the top of the fixed cylinder (1) for driving the rotating column (2) to rotate. The machine (3), a rotating pin (4) rotatably disposed at the bottom of the rotating column (2), a cylindrical cam (5) coaxially sleeved on the outer wall of the rotating column (2), a spring spring (6) disposed between the top of the cylindrical cam (5) and the fixed cylinder (1) and used to provide downward elastic force to the cylindrical cam (5), and an impact hammer (7) sleeved on the outer wall of the cylindrical cam (5); the impact base (80) is disposed below the impact hammer (7), and the rotating pin (4) can rotate along the lower end face of the cylindrical cam (5) so that the cylindrical cam (5) moves upward relative to the rotating column (2) and moves freely to the ground.

2. The multi-rod detachable rotary impact auger drilling rig according to claim 1, characterized in that: The bottom of the cylindrical cam (5) is provided with several sets of guide platforms (51) connected end to end and arranged around the axis of the rotating column (2). The guide platform (51) forms a sinusoidal curved surface (511) from the starting end to the end, which allows the cylindrical cam (5) to rise vertically. The end of one set of guide platforms (51) to the starting end of another set of guide platforms (51) forms a straight curved surface step (512) that allows the cylindrical cam (5) to fall vertically. The rotating pin (4) is radially inserted through the rotating column (2) and its two ends can rotate along the lower end face of several sets of guide platforms (51).

3. The multi-rod detachable rotary impact auger drilling rig according to claim 1, characterized in that: The fixed cylinder (1) includes a limiting seat (101) fixed to the top of the feed box (12) and a limiting cylinder (102) disposed below the limiting seat (101). An abutment shoulder (103) for limiting the rise of the cylindrical cam (5) is formed between the limiting cylinder (102) and the limiting seat (101). A first bearing (104) is provided on the inner wall of the bottom of the limiting cylinder (102). The inner wall of the first bearing (104) is sleeved on the impact base (80). The outer wall of the impact hammer (7) and the limiting cylinder (102) are provided with a plurality of tension springs (9) for providing downward pulling force to the impact hammer (7); the limiting cylinder (102) is provided with a tension spring fixing shaft (105), and the impact hammer (7) is fixedly provided with a tension spring connector (106) above the tension spring fixing shaft (105). One end of the tension spring (9) is connected to the tension spring connector (106) and the other end is connected to the tension spring fixing shaft (105).

4. The multi-rod disassembly rotary impact auger drilling rig according to claim 1, characterized in that: The top of the cylindrical cam (5) is provided with a spring pressure block (501), the lower end face of the elastic spring (6) abuts against the spring pressure block (501), and a number of adjusting weights (10) are stacked on the spring pressure block (501).

5. A multi-rod detachable rotary impact auger drilling rig according to claim 1, characterized in that: The clamping mechanism (16) includes a clamping seat (161) disposed on the frame (11), a plurality of jaws (162) disposed on the clamping seat (161), and a clamping drive device (17) disposed on the frame (11) for driving the plurality of jaws (162) to grip; the clamping seat (161) is provided with an opening (163) for accommodating the spiral drill pipe (15) to pass through, and the plurality of jaws (162) are distributed around the opening (163).

6. A multi-rod disassembly rotary impact auger drilling rig according to claim 5, characterized in that: The clamping drive device (17) includes a clamping motor (171) mounted on the frame (11), a lead screw (172) connected to the output shaft of the clamping motor (171), several first sliders (173) movably mounted in the clamping seat (161), second sliders (174) mounted at the bottom of the first sliders (173) and at the top of the gripper (162), and a hollow gear (175) coaxially mounted in the clamping seat (161); the first sliders (173) are provided with gear teeth (176) meshing with the hollow gear (175), the first sliders (174)... 73) and the second slider (174) are meshed with helical teeth (177) that make their movement directions perpendicular; the lead screw (172) is threadedly connected to one of the first sliders (173), and the axial direction of the lead screw (172) is parallel to the tangential direction of the hollow gear (175); the other groups of first sliders (173) are slidably connected to guide shafts (178) provided in the clamping seat (161), and the two ends of the guide shaft (178) are provided with retaining rings (179) for limiting, and the axial direction of the guide shaft (178) is parallel to the tangential direction of the hollow gear (175).

7. A multi-rod detachable rotary impact auger drilling rig according to claim 6, characterized in that: The first slider (173) is slidably provided with an adjusting member (19), the adjusting member (19) can move radially relative to the first slider (173) along the opening (163), and the gripper (162) can be fixed to the adjusting member (19) by screw threads; the first slider (173) and the gripper (162) are engaged with each other with uniformly distributed wave grooves (20).

8. A multi-rod detachable rotary impact auger drilling rig according to claim 1, characterized in that: The feeding mechanism (13) includes a feeding motor (131) mounted on the frame (11), a take-up drum (132) connected to the output shaft of the feeding motor (131), a first cable (133) with one end connected to the outer wall of the take-up drum (132) and the other end connected to a first tension sensor (21), a first reel (134) rotatably mounted on the feed box (12), a second reel (135) rotatably mounted on the top of the frame (11), and several sets of sliding shafts (18) vertically mounted on the frame (11) and slidably connected to the feed box (12). The first tension sensor (21) is fixedly mounted on the top of the frame (11). The first reel (134) and the second reel (135) are axially horizontally arranged. The first cable (133) passes through the lower half of the outer wall of the first reel (134) and the upper half of the outer wall of the second reel (135) from one end of the first tension sensor (21).

9. A multi-rod detachable rotary impact auger drilling rig according to claim 8, characterized in that: The feeding mechanism (13) further includes a third spool (136) rotatably disposed on the feed box (12), a fourth spool (137) rotatably disposed on the bottom of the frame (11), and a second cable (138) with one end connected to a second tension sensor (22) and the other end connected to the outer wall of the take-up drum (132). The second tension sensor (22) is disposed on the bottom of the frame (11). The third spool (136) and the fourth spool (137) are axially horizontally arranged. The take-up drum (132) is placed between the second spool (135) and the fourth spool (137). The second cable (138) passes through the upper half of the outer wall of the third spool (136) and the lower half of the outer wall of the fourth spool (137) in sequence from one end of the second tension sensor (22).

Images