A drilling device for geological survey

Abstract

The present invention relates to the technical field of geological survey, and specifically to a drilling device for geological survey, comprising a base, a wellhead plate, a power device, a drilling tower, an active drill rod and a core tube, wherein the wellhead plate is installed inside the base, the power device is installed on the upper surface of the base, the drilling tower is fixedly installed on the base, and the core tube is installed at the bottom of the active drill rod. A first connecting piece is symmetrically installed on the side of the base, a hydraulic jack is fixedly installed on the end of the first connecting piece away from the base, a first correction component is arranged on the upper surface of the first connecting piece, and a second correction component is arranged on the front of the drilling tower. The drilling device for geological survey can alarm when the active drill rod is bent through an alarm component, and can complete the correction in time in cooperation with the correction component, so as to ensure the subsequent drilling accuracy, and can check the correction in cooperation with the centering component, so as to ensure the accuracy of the correction again and further improve the drilling accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of geological survey, in particular to a drilling device for geological survey. Background Art

[0002] From the existing entries, we can know that the main purpose of geological survey includes finding mineral resources, assessing the risk of geological disasters, exploring the internal structure of the earth, etc. At present, there are many methods and means of geological survey, such as geological investigation, geological measurement, geological drilling, etc.

[0003] For geological drilling, commonly used equipment includes drilling devices, among which the calibration of the drilling rig in the drilling device is very important during its use, especially in deep hole construction. The curvature of the borehole is one of the six final hole indicators of drilling. It is generally stipulated that it should not exceed two degrees within one hundred meters. The calibration of the drilling rig directly affects the curvature of the borehole. The drilling rig must be calibrated before drilling a hole to meet the requirements of the curvature of the borehole. After the drilling rig is moved to the drilling position, the hole of the wellhead plate is aligned with the required drilling position, the four hydraulic tops are supported to the ground, and the drilling tower is erected and locked.

[0004] However, for many drilling workers, there is a misunderstanding when calibrating drilling, that is, when calibrating the drilling rig, they choose to calibrate the base, but what really needs to be calibrated is the active drill rod. Only when the active drill rod is perpendicular to the ground can the calibration be considered complete, and the base parallel to the ground can only be considered a preliminary calibration, because it is difficult to ensure that the vertical axis of the drilling rig is perpendicular to the base. For example, the drilling tower and the vertical axis of some drilling rigs are not in the same line. Therefore, as the drilling hole deepens, the drilling will not be smooth, which will cause the drill rod to scratch the casing and cause the drilling operation to stop. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a drilling device for geological survey, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a drilling device for geological survey, comprising a base, a wellhead plate, a power device, a drilling tower, an active drill pipe and a core tube, wherein the wellhead plate is installed inside the base, the power device is installed on the upper surface of the base, the drilling tower is fixedly installed on the base, the core tube is installed at the bottom of the active drill pipe, a first connecting piece is symmetrically installed on the side of the base, a hydraulic top is fixedly installed on the end of the first connecting piece away from the base, a first correction component is arranged on the upper surface of the first connecting piece, a second correction component is arranged on the front of the drilling tower, an alarm component is arranged on the correction component, a centering component is arranged below the correction component, and a deviation correction component is arranged on the centering component.

[0007] Optionally, the first correction component includes a first correction piece, the first correction piece is mounted on the upper surface of the first connecting piece, a mounting groove is provided inside the first correction piece, a bidirectional hydraulic rod is fixedly mounted in the mounting groove, a first mounting piece is fixedly mounted on the output shaft of the bidirectional hydraulic rod, a first driving rod is movably mounted on the first mounting piece away from the wellhead plate, a second driving rod is movably mounted on one end of the first driving rod away from the first mounting piece, an upper end of the second driving rod is mounted on the first mounting piece on the other side, and a second correction piece is movably mounted on the bottom of the second driving rod;

[0008] A vertical plate is fixedly mounted on the upper surface of the second correction member, the angle between the vertical plate and the second correction member is ninety degrees, the vertical plate is located below the mounting slot, the width of the vertical plate is smaller than the width of the mounting slot, a pointer is fixedly mounted on one side of the vertical plate, an elastic column is fixedly connected to the upper surface of the second correction member, the other end of the elastic column is fixedly connected to the bottom of the first correction member, the angle between the elastic column and the second correction member is ninety degrees, and the angle between the elastic column and the first correction member is ninety degrees;

[0009] An anti-sinking plate is symmetrically fixedly installed on the side of the second correction piece, the upper surface of the anti-sinking plate is at the same level as the upper surface of the second correction piece, the thickness of the anti-sinking plate is one third of the thickness of the second correction piece, and a placement groove is opened inside the first correction piece, and the lower surface of the first correction piece is parallel to the upper surface of the base.

[0010] Optionally, the second correction component includes a mounting frame, the mounting frame is fixedly mounted on the front of the drilling tower, a servo motor is fixedly mounted on one end of the mounting frame, a bidirectional lead screw is fixedly mounted on the output shaft of the servo motor, the bidirectional lead screw is movably mounted on the inner side of the mounting frame, and screw sleeves are spirally connected on both sides of the outer surface of the bidirectional lead screw;

[0011] A second connecting member is fixedly installed on the screw sleeve near the side of the servo motor, a first mounting frame is fixedly installed on one end of the second connecting member away from the bidirectional lead screw, a second mounting frame is fixedly installed on one side of the first mounting frame away from the second connecting member, a first sliding member is slidably connected to the upper sides of the first mounting frame and the second mounting frame, a first positioning bolt is connected to the internal thread of the first sliding member, a second mounting member is fixedly installed on the bottom of the first sliding member, and a level ruler is movably installed on the inner side of the second mounting member;

[0012] The lower sides of the first installation frame and the second installation frame are both slidably connected with a second sliding member, and the side edges of the second sliding member are symmetrically threadedly connected with a second positioning bolt.

[0013] Optionally, the width of the inner cavity of the alarm component is greater than the width of the active drill rod, the alarm component is located above the first sliding component, and the alarm component is fixed by pressing the first sliding component and the first positioning bolt nut.

[0014] Optionally, the centering component includes a driving frame, the driving frame is fixedly mounted on the bottom of the screw sleeve, a bearing frame is fixedly mounted on the other end of the driving frame, a first adjusting arm is movably mounted inside the bearing frame, a second adjusting arm is movably mounted on the middle of the lower surface of the first adjusting arm, a fixing frame is fixedly mounted on one end of the first adjusting arm and the second adjusting arm close to the wellhead plate, and a centering roller is movably mounted on the inner side of the fixing frame;

[0015] A stud is fixedly mounted on the upper surface of the first adjusting arm and the second adjusting arm at one end away from the centering roller, a nut is threadedly connected to the outer surface of the stud, and a path groove is opened on the upper surface of the bearing frame, and the path groove is adapted to the moving path of the stud when the first adjusting arm and the second adjusting arm are driven;

[0016] The nut is located above the path groove, and the width of the nut is greater than the width of the path groove.

[0017] Optionally, the deviation-correcting assembly includes a center column, which is fixedly mounted in the middle of the upper surface of the bearing frame, and a deviation-correcting member is disposed on the outer surface of the center column.

[0018] Optionally, the center of the central column and the center of the circular hole on the wellhead plate are on the same straight line, and a rubber pad is provided at the bottom of the supporting frame.

[0019] Optionally, the first installation frame is in an arc shape, and the distance between the bottom of the level and the top of the second sliding member is five to ten centimeters.

[0020] Optionally, a limit block is fixedly installed on the top of the screw sleeve, and a sliding groove adapted to the limit block is opened on the inner side of the mounting frame.

[0021] The present invention provides a drilling device for geological survey, which has the following beneficial effects:

[0022] 1. The drilling device for geological survey can provide a visual adjustment method for the base and the ground through the first correction component, and a standard correction scheme is designed, which can effectively improve the accuracy of the preliminary correction. At the same time, the wide design of the second correction component can reduce the influence of settlement on the correction. The anti-sinking plate disperses the overall gravity direction of the device, which can further reduce the influence of settlement on the correction. The vertical plate, the pointer and the elastic column cooperate with each other to not only provide a standard for correction, but also can continuously adjust based on this standard when affected by settlement, thereby further improving the accuracy of calibration.

[0023] 2. The drilling device for geological survey can make the active drill rod perpendicular to the ground through the second correction component, further improving the correction effect and making the drilling accuracy higher. The centering component is intervened to center and guide the active drill rod, once again providing a guarantee for improving the drilling accuracy. The centering component can flexibly adapt to active drill rods of different sizes, improving the versatility of the device.

[0024] 3. The drilling device for geological survey can alarm when the active drill rod is bent through the alarm component. It can complete the correction in time with the correction component to ensure the subsequent drilling accuracy. It can check the correction with the centering component to ensure the accuracy of the correction again and further improve the drilling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a side view structural schematic diagram of the present invention;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the first correction component of the present invention;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the vertical plate of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the positional relationship between the second correction component and the active drill rod of the present invention;

[0029] Figure 5 It is a three-dimensional structural schematic diagram of the second correction component of the present invention;

[0030] Figure 6 It is a partial three-dimensional structural diagram of the alarm component and the second correction component of the present invention;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the first sliding member, the first positioning bolt and the second mounting member of the present invention;

[0032] Figure 8 It is a three-dimensional structural schematic diagram of the centering component and the deviation-correcting component of the present invention;

[0033] Fig. 9 It is a schematic diagram of a specific structure of a part of the centering component of the present invention.

[0034] In the figure: 1, base; 11, wellhead plate; 12, power device; 13, drilling tower; 14, active drill pipe; 15, core tube; 16, first connecting piece; 17, hydraulic jack; 2, first correction piece; 21, mounting groove; 22, two-way hydraulic rod; 23, first mounting piece; 24, first driving rod; 25, second driving rod; 26, second correction piece; 27, vertical plate; 28, pointer; 29, elastic column; 210, anti-sinking plate; 211, placement groove; 3, mounting frame; 31, servo motor; 32, two-way screw; 3 3. Screw sleeve; 34. Limit block; 35. Second connecting member; 36. First mounting frame; 37. Second mounting frame; 38. First sliding member; 39. First positioning bolt; 310. Second mounting member; 311. Level ruler; 312. Second sliding member; 313. Second positioning bolt; 4. Alarm member; 5. Drive frame; 51. Carrying frame; 52. First adjusting arm; 53. Second adjusting arm; 54. Fixed frame; 55. Centering roller; 56. Stud; 57. Nut; 58. Path groove; 6. Center column; 61. Correction member. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Embodiment 1:

[0037] See also Figures 1 to 3 The present invention provides a technical solution: a drilling device for geological survey, comprising a base 1, a wellhead plate 11, a power device 12, a drilling tower 13, an active drill pipe 14 and a core tube 15, the wellhead plate 11 is installed inside the base 1, the power device 12 is installed on the upper surface of the base 1, the drilling tower 13 is fixedly installed on the base 1, the core tube 15 is installed at the bottom of the active drill pipe 14, a first connecting member 16 is symmetrically installed on the side of the base 1, a hydraulic jack 17 is fixedly installed on the end of the first connecting member 16 away from the base 1, a first correction component is arranged on the upper surface of the first connecting member 16, a second correction component is arranged on the front of the drilling tower 13, an alarm component 4 is arranged on the correction component, a centering component is arranged below the correction component, and a deviation correction component is arranged on the centering component;

[0038] The first correction assembly includes a first correction member 2, which is mounted on the upper surface of the first connecting member 16. A mounting groove 21 is provided inside the first correction member 2, in which a bidirectional hydraulic rod 22 is fixedly mounted, a first mounting member 23 is fixedly mounted on the output shaft of the bidirectional hydraulic rod 22, a first driving rod 24 is movably mounted on the first mounting member 23 away from the wellhead plate 11, a second driving rod 25 is movably mounted on one end of the first driving rod 24 away from the first mounting member 23, an upper end of the second driving rod 25 is mounted on the first mounting member 23 on the other side, and a second correction member 26 is movably mounted on the bottom of the second driving rod 25;

[0039] A vertical plate 27 is fixedly mounted on the upper surface of the second correction member 26, and the included angle between the vertical plate 27 and the second correction member 26 is ninety degrees. The vertical plate 27 is located below the mounting groove 21, and the width of the vertical plate 27 is smaller than the width of the mounting groove 21. A pointer 28 is fixedly mounted on one side of the vertical plate 27. An elastic column 29 is fixedly connected to the upper surface of the second correction member 26, and the other end of the elastic column 29 is fixedly connected to the bottom of the first correction member 2. The included angle between the elastic column 29 and the second correction member 26 is ninety degrees, and the included angle between the elastic column 29 and the first correction member 2 is ninety degrees.

[0040] An anti-sinking plate 210 is symmetrically fixedly installed on the side of the second correction piece 26. The upper surface of the anti-sinking plate 210 is at the same level as the upper surface of the second correction piece 26. The thickness of the anti-sinking plate 210 is one third of the thickness of the second correction piece 26. A placement groove 211 is opened inside the first correction piece 2, and the lower surface of the first correction piece 2 is parallel to the upper surface of the base 1.

[0041] After the drilling rig moves to the drilling position, align the hole of the wellhead plate 11 with the desired drilling position, then support the four hydraulic jacks 17 to the ground, stand up the drilling tower 13 and lock it, and then make a preliminary correction. The correction method is to make the base 1 parallel to the ground. Most workers judge it by naked eyes. Although the difference is not large, it is not accurate enough. Even when drilling in places prone to settlement, due to the influence of the positions of the drilling tower 13 and the active drill rod 14, the center of gravity of the drilling rig is not in the middle. Therefore, as the drilling rig stays for a long time, the settlement will affect the correction accuracy.

[0042] In the present invention, the preliminary correction first needs to start the bidirectional hydraulic rod 22 to drive the first mounting member 23, so that the first mounting member 23 drives the first driving rod 24 and the second driving rod 25, and the first driving rod 24 and the second driving rod 25 drive the second correction member 26 to move downward, so that the second correction member 26 contacts the ground and fits the ground. If the base 1 is not level with the ground, the first correction member 2 and the second correction member 26 that are level with the base 1 are not parallel either.

[0043] At this time, observe the elastic column 29. Since the first correction piece 2 and the second correction piece 26 are not parallel, the elastic column 29 will be tilted. At this time, adjust the base 1 so that the pointer 28 points to the center of the diameter of the elastic column 29. At the same time, you can also observe whether the second correction piece 26 and the elastic column 29 are vertical, or whether the elastic column 29 and the first correction piece 2 are vertical. If they are vertical, the preliminary calibration is completed. At this time, the base 1 is parallel to the ground, and accurate preliminary calibration is achieved.

[0044] In addition, the second correction member 26 is a wide plate. By utilizing the second correction member 26 to contact the ground with a large area, the tension between the second correction member 26 and the ground can be increased. With the support of the hydraulic jack 17, the influence of settlement can be reduced, and the influence of settlement on the correction accuracy after the preliminary correction can be reduced.

[0045] When settlement occurs, the anti-sinking plate 210 can disperse the gravity of the entire device from both sides of the second correction member 26, further reducing the settlement amplitude, and once again reducing the influence of settlement on the correction accuracy. At the same time, through the cooperation between the vertical plate 27, the pointer 28 and the elastic column 29, when settlement occurs, by observing the inclination angle of the elastic column 29, the settlement amplitude can be more accurately detected than with the naked eye, and timely re-correction can be made;

[0046] The first calibration member 2 can be used as a reference object for calibration. The placement groove 211 provided thereon can be used to place the drill rod and has a limiting effect. Compared with the traditional method of directly placing it on the first connecting member 16, it is safer without a limiting structure.

[0047] Embodiment 2:

[0048] See also Figures 4 to 7 The second correction component includes a mounting frame 3, which is fixedly mounted on the front of the drilling tower 13. A servo motor 31 is fixedly mounted on one end of the mounting frame 3. A bidirectional lead screw 32 is fixedly mounted on the output shaft of the servo motor 31. The bidirectional lead screw 32 is movably mounted on the inner side of the mounting frame 3. Both sides of the outer surface of the bidirectional lead screw 32 are spirally connected with a screw sleeve 33. A limit block 34 is fixedly mounted on the top of the screw sleeve 33. A slide groove adapted to the limit block 34 is opened on the inner side of the mounting frame 3;

[0049] A second connecting member 35 is fixedly installed on the screw sleeve 33 on one side close to the servo motor 31, a first mounting frame 36 is fixedly installed on one end of the second connecting member 35 away from the bidirectional lead screw 32, a second mounting frame 37 is fixedly installed on one side of the first mounting frame 36 away from the second connecting member 35, a first sliding member 38 is slidably connected to the upper sides of the first mounting frame 36 and the second mounting frame 37, a first positioning bolt 39 is connected to the internal thread of the first sliding member 38, a second mounting member 310 is fixedly installed on the bottom of the first sliding member 38, and a level ruler 311 is movably installed on the inner side of the second mounting member 310;

[0050] The lower sides of the first mounting frame 36 and the second mounting frame 37 are both slidably connected with the second sliding member 312, and the side edges of the second sliding member 312 are symmetrically threadedly connected with the second positioning bolt 313. The shape of the first mounting frame 36 is arc-shaped, and the distance between the bottom of the level 311 and the top of the second sliding member 312 is five to ten centimeters.

[0051] Because it is difficult to ensure that the vertical axis of the drilling rig is vertical to the base, the tower and the vertical axis of some drilling rigs are not in a straight line. Therefore, as the hole deepens, the drilling will not be smooth, and the drill rod will scratch the casing, causing the drilling operation to stop;

[0052] At this time, the servo motor 31 needs to be started to drive the bidirectional screw 32 to rotate, and the bidirectional screw 32 is used to drive the screw sleeve 33. When the screw sleeve 33 moves, the first installation frame 36 will move accordingly, so that the two level rulers 311 are close to the active drill rod 14 and are located on the asymmetric sides of the active drill rod 14. At this time, the level ruler 311 needs to be adjusted so that the bubble on the horizontal direction of the level ruler 311 is centered, and because the distance between the bottom of the level ruler 311 and the top of the second sliding member 312 is five to ten centimeters, the level ruler 311 will not be interfered by the second sliding member 312 when adjusting the rotation;

[0053] Next, you need to tighten the two second positioning bolts 313 to fix the level ruler 311, then observe the inclination angle of the active drill rod 14 and the level ruler 311, and adjust the active drill rod 14. It is necessary to make the asymmetric sides of the active drill rod 14 parallel to the level ruler 311. At this time, the active drill rod 14 is perpendicular to the ground, and the hole drilled at this time is a 90-degree hole, which can further improve the correction accuracy.

[0054] Embodiment 3:

[0055] See also Figures 4 to 6 The width of the inner cavity of the alarm member 4 is greater than the width of the active drill rod 14. The alarm member 4 is located above the first sliding member 38. The alarm member 4 is fixed by tightening the first sliding member 38 and the nut of the first positioning bolt 39.

[0056] On the basis of Example 2, when the active drill rod 14 is calibrated, it is necessary to slide the first sliding member 38 installed on the first mounting frame 36 or the second mounting frame 37 so that the first sliding member 38 is at the center position of the width of the active drill rod 14. At this time, the alarm member 4 is set on the outside of the active drill rod 14, and the opening of the alarm member 4 is facing the direction of the wellhead plate 11. Finally, the first positioning bolt 39 is tightened so that the bottom of the first positioning bolt 39 is in close contact with the first mounting frame 36 or the second mounting frame 37, so that the nut of the first positioning bolt 39 is in close contact with the alarm member 4, and the fixation of the first sliding member 38 and the alarm member 4 is completed;

[0057] In this way, when the base 1 bends due to the influence of settlement or complex geological rock formations, the rotation diameter of the base 1 becomes larger. When the rotation diameter of the active drill rod 14 becomes larger, it will contact the alarm part 4, making a sound to alarm, and then promptly remind the staff to stop drilling and correct the active drill rod 14 to avoid continuous bending of the active drill rod 14 and cause scratches on the casing.

[0058] Embodiment 4:

[0059] See also Figure 1 , Figure 8 and Fig. 9 The centering assembly includes a driving frame 5, which is fixedly mounted on the bottom of the screw sleeve 33, and a bearing frame 51 is fixedly mounted on the other end of the driving frame 5. A first adjusting arm 52 is movably mounted inside the bearing frame 51, and a second adjusting arm 53 is movably mounted on the middle of the lower surface of the first adjusting arm 52. A fixing frame 54 is fixedly mounted on one end of the first adjusting arm 52 and the second adjusting arm 53 close to the wellhead plate 11, and a centering roller 55 is movably mounted on the inner side of the fixing frame 54;

[0060] A stud 56 is fixedly mounted on the upper surface of the first adjusting arm 52 and the second adjusting arm 53 at one end away from the centering roller 55. A nut 57 is threadedly connected to the outer surface of the stud 56. A path groove 58 is provided on the upper surface of the carrying frame 51. The path groove 58 is adapted to the moving path of the stud 56 when the first adjusting arm 52 and the second adjusting arm 53 are driven.

[0061] The nut 57 is located above the path groove 58 , and the width of the nut 57 is greater than the width of the path groove 58 .

[0062] On the basis of Example 2, when the screw sleeve 33 moves, it will also drive the driving frame 5 to move, so that the driving frame 5 drives the bearing frame 51 to move, so that the bearing frame 51 drives the fixed frame 54 to move, and then the centering roller 55 intervenes in the operation of the active drill rod 14, so as to realize the centering and guiding of the active drill rod 14, and improve the stability of the active drill rod 14 during operation;

[0063] In addition, when encountering active drill rods 14 of different sizes, the spacing between the centering rollers 55 can be adjusted by driving the first adjusting arm 52 and the second adjusting arm 53, and then the nut 57 can be tightened to make the nut 57 and the bearing frame 51 in close contact, so as to complete the fixing of the centering roller 55, thereby adapting to active drill rods 14 of different sizes, thereby improving the versatility of the device;

[0064] When the centering roller 55 contacts the active drill rod 14, the centering roller 55 rotates. Compared with the sliding friction between the conventional guide device and the active drill rod 14, the rolling friction between the centering roller 55 and the active drill rod 14 reduces the friction force on the active drill rod 14, reduces the wear on the active drill rod 14, and does not hinder the rotation of the active drill rod 14.

[0065] Embodiment 5:

[0066] See also Figure 1 and Figure 8 The deviation correction component includes a center column 6, which is fixedly mounted on the middle of the upper surface of the bearing frame 51, and a deviation correction member 61 is provided on the outer surface of the center column 6;

[0067] The center of the central column 6 and the center of the circular hole on the wellhead plate 11 are on the same straight line, and a rubber pad is provided at the bottom of the supporting frame 51 .

[0068] The above is the correct operation of correction and centering guidance. However, in actual operation, it is impossible to ensure that the staff operates completely correctly, or errors occur during the operation, or the settlement is seriously affected, and the geological rock formation is too complex, resulting in the active drill rod 14 bending with a large amplitude and a fast speed during the movement, and when it scrapes the casing, it is necessary to correct the deviation and re-calibrate it;

[0069] Since the hole depth has reached a certain level at this time, the correction reference object before drilling has lost its effect. At this time, the core tube 15 needs to be lifted from the deep hole, and then the correction piece 61 is placed on the outside of the center column 6, and then the core tube 15 is allowed to droop freely. After the drooping, the core tube 15 is blocked by the correction piece 61 and stops. Then, the base 1 is adjusted to align the core tube 15 with the casing to complete the correction. At this time, the drilling will be smoother.

[0070] Moreover, although the correction operation at this time adjusts the base 1, the borehole will not be bent, because as the borehole deepens, only the core tube 15 is now controlling the borehole bending, so there is no need to worry about the borehole bending problem;

[0071] By arranging a rubber pad at the bottom of the bearing frame 51, the impact generated when the core tube 15 falls and is blocked by the deviation-correcting member 61 can be buffered, so as to prevent the bearing frame 51 from being squeezed and deformed, and the bearing frame 51 can be made of hard materials such as fine steel during production;

[0072] In addition, after the active drill rod 14 is corrected by using the core tube 15, the four centering rollers 55 can be moved and approached simultaneously by driving the first adjusting arm 52 and the second adjusting arm 53. When the core tube 15 is in the middle of the four centering rollers 55, the correction is completed. If it is not in the middle, it needs to be adjusted again. In this way, the use of the centering rollers 55 can further improve the accuracy of the correction and serve as a test for the correction components.

[0073] 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 drilling device for geological survey, comprising a base (1), a wellhead plate (11), a power device (12), a drilling tower (13), an active drill rod (14) and a core tube (15), wherein the wellhead plate (11) is mounted inside the base (1), the power device (12) is mounted on the upper surface of the base (1), the drilling tower (13) is fixedly mounted on the base (1), and the core tube (15) is mounted at the bottom of the active drill rod (14), characterized in that: A first connecting member (16) is symmetrically mounted on the side of the base (1); a hydraulic jack (17) is fixedly mounted on one end of the first connecting member (16) away from the base (1); a first correction component is arranged on the upper surface of the first connecting member (16); a second correction component is arranged on the front of the drilling tower (13); an alarm component (4) is arranged on the second correction component; a centering component is arranged below the second correction component; and a deviation correction component is arranged on the centering component; The first correction component comprises a first correction member (2), the first correction member (2) being mounted on the upper surface of the first connecting member (16), a mounting groove (21) being provided inside the first correction member (2), a bidirectional hydraulic rod (22) being fixedly mounted in the mounting groove (21), a first mounting member being fixedly mounted on the output shaft of the bidirectional hydraulic rod (22), a first driving rod (24) being movably mounted on the first mounting member away from the wellhead plate (11), a second driving rod (25) being movably mounted on one end of the first driving rod (24) away from the first mounting member, the upper end of the second driving rod (25) being mounted on the first mounting member on the other side, and a second correction member (26) being movably mounted on the bottom of the second driving rod (25); A vertical plate (27) is fixedly mounted on the upper surface of the second correction member (26), the included angle between the vertical plate (27) and the second correction member (26) is ninety degrees, the vertical plate (27) is located below the mounting groove (21), the width of the vertical plate (27) is smaller than the width of the mounting groove (21), a pointer (28) is fixedly mounted on one side of the vertical plate (27), an elastic column (29) is fixedly connected to the upper surface of the second correction member (26), the other end of the elastic column (29) is fixedly connected to the bottom of the first correction member (2), the included angle between the elastic column (29) and the second correction member (26) is ninety degrees, and the included angle between the elastic column (29) and the first correction member (2) is ninety degrees; An anti-sinking plate (210) is symmetrically fixedly mounted on the side of the second correction piece (26); the upper surface of the anti-sinking plate (210) is at the same level as the upper surface of the second correction piece (26); the thickness of the anti-sinking plate (210) is one third of the thickness of the second correction piece (26); a placement groove (211) is provided inside the first correction piece (2); and the lower surface of the first correction piece (2) is parallel to the upper surface of the base (1).

2. A drilling device for geological survey according to claim 1, characterized in that: The second calibration component comprises a mounting frame (3), the mounting frame (3) being fixedly mounted on the front side of the drilling tower (13), a servo motor (31) being fixedly mounted on one end of the mounting frame (3), a bidirectional lead screw (32) being fixedly mounted on the output shaft of the servo motor (31), the bidirectional lead screw (32) being movably mounted on the inner side of the mounting frame (3), and screw sleeves (33) being spirally connected on both sides of the outer surface of the bidirectional lead screw (32); A second connecting member (35) is fixedly mounted on the screw sleeve (33) at one side close to the servo motor (31); a first mounting frame (36) is fixedly mounted on one end of the second connecting member (35) away from the bidirectional lead screw (32); a second mounting frame (37) is fixedly mounted on one side of the first mounting frame (36) away from the second connecting member (35); a first sliding member (38) is slidably connected to the upper sides of the first mounting frame (36) and the second mounting frame (37); a first positioning bolt (39) is connected to the internal thread of the first sliding member (38); a second mounting member (310) is fixedly mounted on the bottom of the first sliding member (38); and a level ruler (311) is movably mounted on the inner side of the second mounting member (310); The lower sides of the first installation frame (36) and the second installation frame (37) are both slidably connected with a second sliding member (312), and the side edges of the second sliding member (312) are symmetrically threadedly connected with a second positioning bolt (313).

3. A drilling device for geological survey according to claim 2, characterized in that: The width of the inner cavity of the alarm member (4) is greater than the width of the active drill rod (14); the alarm member (4) is located above the first sliding member (38); and the alarm member (4) is fixed by pressing the first sliding member (38) against the nut of the first positioning bolt (39).

4. A drilling device for geological survey according to claim 3, characterized in that: The centering assembly comprises a drive frame (5), the drive frame (5) being fixedly mounted on the bottom of the screw sleeve (33), a bearing frame (51) being fixedly mounted on the other end of the drive frame (5), a first adjusting arm (52) being movably mounted inside the bearing frame (51), a second adjusting arm (53) being movably mounted in the middle of the lower surface of the first adjusting arm (52), a fixing frame (54) being fixedly mounted on one end of the first adjusting arm (52) and the second adjusting arm (53) close to the wellhead plate (11), and a centering roller (55) being movably mounted on the inner side of the fixing frame (54); A stud (56) is fixedly mounted on the upper surface of the first adjusting arm (52) and the second adjusting arm (53) at one end away from the centering roller (55); a nut (57) is threadedly connected to the outer surface of the stud (56); a path groove (58) is provided on the upper surface of the bearing frame (51); the path groove (58) is adapted to the movement path of the stud (56) when the first adjusting arm (52) and the second adjusting arm (53) are driven; The nut (57) is located above the path groove (58), and the width of the nut (57) is greater than the width of the path groove (58).

5. A drilling device for geological survey according to claim 4, characterized in that: The deviation-correcting assembly comprises a central column (6), the central column (6) being fixedly mounted in the middle of the upper surface of the bearing frame (51), and a deviation-correcting member (61) being provided on the outer surface of the central column (6).

6. A drilling device for geological survey according to claim 5, characterized in that: The center of the center column (6) and the center of the circular hole on the wellhead plate (11) are located on the same straight line, and a rubber pad is provided at the bottom of the bearing frame (51).

7. A drilling device for geological survey according to claim 6, characterized in that: The first installation frame (36) is in an arc shape, and the distance between the bottom of the level ruler (311) and the top of the second sliding member (312) is five to ten centimeters.

8. A drilling device for geological survey according to claim 7, characterized in that: A limit block (34) is fixedly mounted on the top of the screw sleeve (33), and a slide groove matching the limit block (34) is provided on the inner side of the mounting frame (3).

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