Drilling deviation prevention device

Abstract

The utility model relates to the technical field of rock core drilling, and discloses a drilling deviation prevention device which comprises a movable seat, a fixed cylinder is fixedly installed at the top of the movable seat, a worm wheel disc is rotatably installed in the fixed cylinder, a plurality of sets of arc-shaped holes are formed in the worm wheel disc, and a plurality of sets of movable grooves are formed in the inner side wall of the fixed cylinder. A straight hole is formed in the top wall of each moving groove, a moving block is movably installed in each moving groove, and a transmission rod is fixedly installed at the top of each moving block. The worm drives the worm wheel disc to rotate anticlockwise, along with rotation of the worm wheel disc, the arc-shaped hole pushes the transmission rod to move, further movement of the transmission rod is limited by the straight hole, the four sets of moving blocks synchronously move towards the center of the fixing cylinder along the straight hole, and finally a drill rod is limited through the moving blocks. The stability of the drill rod is effectively guaranteed, and the possibility of positioning deviation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of core drilling, more specifically, the utility model relates to a drilling anti-deviation device. BACKGROUND

[0002] Core drilling is a geological exploration technology that obtains geological information by drilling cylindrical rock samples from the ground. During the drilling process, the drill bit penetrates different strata and extracts the core to the surface for analysis. Core samples can provide key information such as stratum structure, lithology, and mineral composition, helping geologists understand the distribution and reserves of underground resources.

[0003] During drilling, the drill pipe is rotated by ground equipment and simultaneously applies downward pressure to make the drill bit penetrate the stratum. To cool the drill bit and remove cuttings, mud or other circulating media are usually used. Core samples are retained in core tubes and then extracted to the surface for analysis. However, in actual applications, the drill pipe may bend or vibrate during long-distance drilling, causing the drill bit direction to change and further deviate. Therefore, an anti-deviation device is needed to limit the drill pipe. For example, Chinese Patent Publication (Announcement) No. CN218324746U "Drilling Anti-Deviation Device" reduces the impact of vibration, ensures the stability of the limiting groove, avoids one-way inclination of the limiting groove causing the drilling rod to deviate, and four anti-deviation mechanisms protect the four sides of the drilling rod, making the anti-deviation effect better.

[0004] However, in actual use, the device needs to manually rotate the distance adjusting bolt to move the limiting plate inward and further limit the drill pipe. However, when the drill pipe operates, it also rotates, and the friction between the drill pipe and the limiting plate increases the wear of the limiting plate and the drill pipe. Moreover, the device cannot ensure that the adjustment distances of the four limiting plates are the same, making the drill pipe prone to deviation. Therefore, improvements and optimizations are needed. UTILITY MODEL CONTENTS

[0005] To overcome the shortcomings of the prior art, the drilling anti-deviation device provided by the utility model has the advantage of good anti-deviation effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a drilling anti-deviation device, comprising a moving seat, a fixed cylinder is fixedly installed on the top of the moving seat;

[0007] The outer wall of the fixed cylinder is fixedly provided with a shell, a worm is rotatably arranged in the shell, a motor is fixedly arranged on the outer wall of the shell, the output shaft of the motor is fixedly connected with the worm, a worm wheel disc is rotatably arranged in the fixed cylinder, the worm wheel disc is in transmission connection with the worm, a plurality of arc-shaped holes are formed in the surface of the worm wheel disc, a plurality of moving grooves are formed in the inner side wall of the fixed cylinder, a straight hole is formed in the inner wall of each moving groove, the position of each arc-shaped hole corresponds to the straight hole formed in each moving groove, a moving block is movably arranged in each moving groove, a transmission rod is fixedly arranged on the top of the moving block, the top of the transmission rod penetrates through the straight hole and the arc-shaped hole in sequence, and a fixed cap is fixedly arranged on the top of the transmission rod and located above the worm wheel disc.

[0008] As a preferred technical scheme of the utility model, a buffer groove is formed in the inside of each moving block, a fixed block is movably arranged in the buffer groove, a rubber shock pad is fixedly arranged in the buffer groove, one end of the fixed block is in contact with the rubber shock pad, the other end of the fixed block is fixedly provided with an anti-deviation clamping block, and a plurality of rollers are rotatably arranged on the outer wall of the anti-deviation clamping block.

[0009] As a preferred technical scheme of the utility model, two groups of laser positioners are fixedly arranged on the top of the fixed cylinder and arranged perpendicularly to each other.

[0010] As a preferred technical scheme of the utility model, a straight groove is formed in the inner bottom wall of each moving groove, and the bottom of the transmission rod extends downward into the straight groove and is in sliding connection with the straight groove.

[0011] As a preferred technical scheme of the utility model, screw piles are threadedly connected to the left and right sides of the moving seat, and the bottom of each screw pile penetrates through the bottom of the moving seat.

[0012] As a preferred technical scheme of the utility model, universal wheels are arranged at the four corners of the bottom of the moving seat, and a push rod is fixedly arranged on the right side of the moving seat.

[0013] As a preferred technical scheme of the utility model, receiving bins are formed at the four corners of the bottom of the moving seat, a moving plate is movably arranged in each receiving bin, and universal wheels are arranged on the bottom of the moving plate.

[0014] As a preferred technical scheme of the utility model, hydraulic cylinders are fixedly arranged at the four corners of the top of the moving seat, the telescopic end of each hydraulic cylinder penetrates through the inside of the receiving bin and is fixedly connected with the moving plate.

[0015] Compared with the prior art, the utility model has the advantages as follows:

[0016] 1. The utility model discloses a worm drives the worm wheel disc counterclockwise rotation, and with the rotation of worm wheel disc, make arc hole push transmission rod displacement, further transmission rod's movement is limited to straight hole, make four groups of moving block along with straight hole synchronous displacement to the center of fixed cylinder, finally through the anti - deviation clamp block will drill rod position -limiting, compared with traditional device, the device can through the setting of laser positioner between drill rod and fixed cylinder positioning, through the operation of control motor again, to make four groups of anti - deviation clamp block synchronous to the inside and make drill rod clamp tightly position -limiting, effectively guarantee the stability of drill rod, avoid the possible of positioning deviation.

[0017] 2. The utility model discloses through the design of anti - deviation clamp block outer wall drum, make drill rod when drilling, drum can change the sliding friction between anti - deviation clamp block and drill rod into rolling friction, effectively alleviate the wear and tear of drill rod, improve the service life of the device and drilling equipment, through the design of rubber shock pad again, when drill rod is in deviation vibration, rubber shock pad can absorb the force of drill rod, reduce the noise, and improve the service life of anti - deviation clamp block, have the significance of popularization. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will be a brief introduction to the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is the structural schematic diagram of laser positioner of the utility model;

[0021] Figure 3 It is the structural schematic diagram of worm wheel disc of the utility model;

[0022] Figure 4 It is the structural schematic diagram of worm of the utility model;

[0023] Figure 5 It is the structural schematic diagram of fixed cylinder and moving block of the utility model;

[0024] Figure 6 It is the structural schematic diagram of rubber shock pad of the utility model;

[0025] Figure 7 It is the structural schematic diagram of spiral pile of the utility model.

[0026] In the diagram: 1. Movable seat; 2. Casters; 3. Push rod; 4. Fixed cylinder; 5. Laser positioner; 6. Housing; 7. Worm gear; 8. Motor; 9. Worm wheel; 10. Arc-shaped hole; 11. Fixed cap; 12. Movable groove; 13. Straight hole; 14. Transmission rod; 15. Buffer groove; 16. Fixed block; 17. Rubber shock-absorbing pad; 18. Anti-deviation clamping block; 19. Roller; 20. Spiral ground stake; 21. Storage compartment; 22. Hydraulic cylinder; 23. Movable plate; 24. Movable block; 25. Straight groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0028] like Figures 1 to 7 As shown, the drilling anti-deviation device provided by this utility model includes a movable base 1 and universal wheels 2, and a fixed cylinder 4 is fixedly installed on the top of the movable base 1.

[0029] A housing 6 is fixedly installed on the outer wall of the fixed cylinder 4. A worm gear 7 is rotatably installed inside the housing 6. A motor 8 is fixedly installed on the outer wall of the housing 6. The output shaft of the motor 8 is fixedly connected to the worm gear 7. A worm wheel 9 is rotatably installed inside the fixed cylinder 4. The worm wheel 9 and the worm gear 7 are connected by a transmission. The worm wheel 9 has multiple sets of arc-shaped holes 10. Multiple sets of moving grooves 12 are opened on the inner side wall of the fixed cylinder 4. A straight hole 13 is opened on the top wall of each set of moving grooves 12. The position of each set of arc-shaped holes 10 corresponds to the straight hole 13 opened in each set of moving grooves 12. A moving block 24 is movably installed inside each set of moving grooves 12. A transmission rod 14 is fixedly installed on the top of the moving block 24. The top of the transmission rod 14 passes through the straight hole 13 and the arc-shaped hole 10 in sequence. A fixing cap 11 is fixedly installed on the top of the transmission rod 14, and the fixing cap 11 is located above the worm wheel 9. The straight hole 13 is used to limit the movement path of the moving block 24. The straight hole 13 drives the transmission rod 14 to move, and the straight hole 13 ensures that the transmission rod 14 drives the moving block 24 to move in a straight line. The arc-shaped holes 10 and the moving grooves 12 can be in two, three, or four sets, etc. The figure shows an example with four sets of arc-shaped holes 10 and four sets of moving grooves 12, spaced 90 degrees apart. To improve the stability of the moving block 24 during movement, each set of arc-shaped holes 10 can have two parallel arc-shaped holes 10, and each set of moving grooves 12 can have two parallel straight holes 13. Correspondingly, each set of moving blocks 24 is equipped with two transmission rods 14.

[0030] When drilling operation is needed, the worker first pushes the mobile seat 1 to the appropriate position, then aligns the drill rod with the center of the fixed cylinder 4, and starts the drilling equipment to make the drill rod enter the inside of the fixed cylinder 4, when the drill rod is completely entered, the worker stops the drill rod and starts to limit it, at this time the worker can start the motor 8, the operation of the motor 8 will drive the worm 7 to rotate, because the worm 7 and the worm gear plate 9 are transmissionally connected, the worm 7 drives the worm gear plate 9 to rotate counterclockwise, with the counterclockwise rotation of the worm gear plate 9, the arc-shaped hole 10 on the surface of the worm gear plate 9 also moves synchronously with the worm gear plate 9, further, at this time the arc-shaped hole 10 wants to drive the transmission rod 14 to move, however, the transmission rod 14 is not only located inside the arc-shaped hole 10, but also located inside the straight hole 13, so that the worm gear plate 9 drives the transmission rod 14 to move along the straight hole 13 by the movement of the arc-shaped hole 10, further, the transmission rod 14 drives the moving block 24 to move, so that the four groups of moving blocks 24 synchronously move towards the center of the fixed cylinder 4, at this time the four groups of anti-deviation clamping blocks 18 clamp and limit the drill rod to avoid deviation of the drill rod.

[0031] The worm 7 drives the worm gear plate 9 to rotate counterclockwise, and with the rotation of the worm gear plate 9, the arc-shaped hole 10 drives the transmission rod 14 to move, further, the movement of the transmission rod 14 is limited by the straight hole 13, so that the four groups of moving blocks 24 synchronously move towards the center of the fixed cylinder 4 along the straight hole 13, and finally the drill rod is limited by the anti-deviation clamping block 18, compared with the traditional device, the device can position the drill rod and the fixed cylinder 4 by the setting of the laser positioner 5, and then control the operation of the motor 8 to synchronously clamp and limit the drill rod inward by the four groups of moving blocks 24, which effectively ensures the stability of the drill rod and avoids the possibility of positioning deviation.

[0032] Among them, the inside of each group of moving blocks 24 is provided with a buffer groove 15, the inside of the buffer groove 15 is movably installed with a fixed block 16, the inside of the buffer groove 15 is fixedly installed with a rubber shock pad 17, one end of the fixed block 16 and the rubber shock pad 17 are in contact with each other, the other end of the fixed block 16 is fixedly installed with an anti-deviation clamping block 18, and a plurality of roller cylinders 19 are rotatably installed on the outer wall of the anti-deviation clamping block 18.

[0033] During drilling operation, the four groups of anti-deviation clamping blocks 18 clamp and limit the drill rod, and the design of the roller cylinders 19 on the outer wall of the anti-deviation clamping blocks 18 reduces the friction between the roller cylinders 19 and the drill rod while preventing deviation, the drill rod shakes left and right under force, at this time the force exerted by the drill rod is transmitted to the fixed block 16 through the anti-deviation clamping block 18, so that the fixed block 16 shakes in the buffer groove 15, at this time the force generated by the vibration of the fixed block 16 can be absorbed by the design of the rubber shock pad 17, reducing noise and wear.

[0034] The outer wall roller 19 of the anti-deviation clamp block 18 is designed, so that when the drill rod drills, the roller 19 can change the sliding friction between the anti-deviation clamp block 18 and the drill rod into rolling friction, effectively alleviating the wear of the drill rod, and improving the service life of the device and the drilling equipment. Further, through the design of the rubber shock pad 17, the rubber shock pad 17 can absorb the force generated by the drill rod when the drill rod deviates and vibrates, reducing noise and improving the service life of the anti-deviation clamp block 18, which has promotional significance.

[0035] The two sets of laser positioners 5 are fixedly installed on the top of the fixed cylinder 4, and the two sets of laser positioners 5 are arranged perpendicular to each other.

[0036] The staff can start the two sets of laser positioners 5. Since the two sets of laser positioners 5 are arranged perpendicular to each other, the laser beams emitted by the two sets of laser positioners 5 are perpendicular to each other, which facilitates the staff to position the drill rod.

[0037] Each inner bottom wall of each set of moving grooves 12 is provided with a straight groove 25, and the bottom of the transmission rod 14 extends downward into the straight groove 25 and is in sliding connection with the straight groove 25. The straight hole 13 above the moving block 24 and the straight groove 25 below the moving block 24 limit the movement of the moving block 24 during movement, ensuring the linear movement of the moving block 24.

[0038] The left and right sides of the moving seat 1 are threadedly sleeved with screw piles 20, and the bottoms of the screw piles 20 penetrate into the bottom of the moving seat 1.

[0039] The staff rotates the screw pile 20 to make the screw pile 20 drill into the soil, so that the moving seat 1 is fixed stably.

[0040] The universal wheels 2 are arranged at the bottom corners of the moving seat 1, and the right side of the moving seat 1 is fixedly installed with a push rod 3.

[0041] When drilling is needed, the staff pushes the push rod 3 to drive the device to the appropriate position by the universal wheels 2 of the moving seat 1.

[0042] The bottom corners of the moving seat 1 are provided with storage bins 21, and each set of storage bins 21 is movably installed with a moving plate 23, and the bottom of the moving plate 23 is provided with a universal wheel 2.

[0043] When the staff stores the moving plate 23 into the storage bin 21, the universal wheel 2 is also stored into the storage bin 21, so that the bottom of the moving seat 1 directly contacts the ground, increases the contact area, and ensures the stability of the moving seat 1.

[0044] The top corners of the moving seat 1 are fixedly installed with hydraulic cylinders 22, and the telescopic ends of the hydraulic cylinders 22 penetrate into the inside of the storage bin 21 and are fixedly connected with the moving plate 23.

[0045] Start the hydraulic cylinder 22, the telescopic end of the hydraulic cylinder 22 can drive the mobile plate 23 to move up and down, when the hydraulic cylinder 22 drives the mobile plate 23 to be stored in the inside of the storage bin 21, the universal wheel 2 can also be stored in the inside of the storage bin 21.

[0046] The working principle and use process of the utility model:

[0047] When drilling operation is needed, the staff first pushes the mobile base 1 to the appropriate position through the universal wheel 2, ensures that the fixed cylinder 4 and the drill rod are aligned with each other, then the staff starts the hydraulic cylinder 22, makes the mobile plate 23 stored in the inside of the storage bin 21, further, the universal wheel 2 is also stored in the inside of the storage bin 21, makes the bottom of the mobile base 1 directly contact with the ground. The staff rotates the screw pile 20 again, to make the screw pile 20 drill into the soil inside, makes the mobile base 1 complete stable fixation, at this time, the staff can start two sets of laser positioners 5, because the two sets of laser positioners 5 are vertically arranged, makes the laser emitted by the two sets of laser positioners 5 perpendicular to each other, facilitates the staff to position the drill rod.

[0048] The staff aligns the drill rod with the center of the fixed cylinder 4, then starts the drilling equipment, makes the drill rod enter the inside of the fixed cylinder 4, when the drill rod completely enters, the staff stops the drill rod and starts to limit it. At this time, the staff can start the motor 8, the operation of the motor 8 drives the worm 7 to rotate, because the worm 7 and the worm gear plate 9 are in transmission connection, makes the worm 7 drive the worm gear plate 9 to rotate counterclockwise, along with the counterclockwise rotation of the worm gear plate 9, the arc-shaped hole 10 on the surface of the worm gear plate 9 also moves synchronously with the worm gear plate 9. Further, at this time, the arc-shaped hole 10 wants to drive the transmission rod 14 to move, however, the transmission rod 14 not only is located in the inside of the arc-shaped hole 10, but also is located in the inside of the straight hole 13, makes the worm gear plate 9 drive the transmission rod 14 to displace along the straight hole 13 through the movement of the arc-shaped hole 10, further, the transmission rod 14 will drive the moving block 24 to displace, makes four sets of moving blocks 24 displace synchronously to the center of the fixed cylinder 4, at this time, four sets of anti-deviation clamping blocks 18 will clamp and limit the drill rod. And the anti-deviation clamping block 18 is designed through the outer wall roller 19, makes the roller 19 anti-deviation at the same time, the friction between the roller 19 and the drill rod is reduced, and when drilling operation, the drill rod shakes left and right under the force, at this time, the force applied by the drill rod is transmitted to the fixed block 16 through the anti-deviation clamping block 18, makes the fixed block 16 shake in the buffer groove 15, at this time, the force generated by the vibration of the fixed block 16 can be absorbed through the design of the rubber shock pad 17, reduces the noise and abrasion.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that; it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drilling anti-deviation device, comprising a movable base (1), characterized in that: A fixed cylinder (4) is fixedly installed on the top of the movable seat (1); A housing (6) is fixedly installed on the outer wall of the fixed cylinder (4). A worm gear (7) is rotatably installed inside the housing (6). A motor (8) is fixedly installed on the outer wall of the housing (6). The output shaft of the motor (8) is fixedly connected to the worm gear (7). A worm wheel (9) is rotatably installed inside the fixed cylinder (4). The worm wheel (9) and the worm gear (7) are connected in a transmission manner. Multiple sets of arc-shaped holes (10) are opened on the surface of the worm wheel (9). Multiple sets of moving grooves (12) are opened on the inner side wall of the fixed cylinder (4). Each set of moving grooves (10) has multiple sets of moving grooves (12). 2) The top wall of each of the components is provided with straight holes (13). The position of each group of arc holes (10) corresponds to the straight holes (13) opened in each group of moving slots (12). A moving block (24) is movably installed inside each group of moving slots (12). A transmission rod (14) is fixedly installed on the top of the moving block (24). The top of the transmission rod (14) passes through the straight hole (13) and the arc hole (10) in sequence. A fixing cap (11) is fixedly installed on the top of the transmission rod (14). The fixing cap (11) is located above the worm gear disk (9).

2. The drilling anti-deviation device according to claim 1, characterized in that: Each set of moving blocks (24) has a buffer groove (15) inside. A fixed block (16) is movably installed inside the buffer groove (15). A rubber shock-absorbing pad (17) is fixedly installed inside the buffer groove (15). One end of the fixed block (16) is in contact with the rubber shock-absorbing pad (17). An anti-deviation clamping block (18) is fixedly installed at the other end of the fixed block (16). Multiple sets of rollers (19) are rotatably installed on the outer wall of the anti-deviation clamping block (18).

3. The drilling anti-deviation device according to claim 1, characterized in that: It also includes two sets of laser positioners (5), both of which are fixedly installed on the top of the fixed cylinder (4), and the two sets of laser positioners (5) are set perpendicular to each other.

4. The drilling anti-deviation device according to claim 1, characterized in that: Each set of moving grooves (12) has a straight groove (25) on its inner bottom wall, and the bottom of the transmission rod (14) extends downward into the straight groove (25) and slides in connection with the straight groove (25).

5. The drilling anti-deviation device according to claim 1, characterized in that: The left and right sides of the movable seat (1) are threaded with helical ground stakes (20), and the bottom of the helical ground stakes (20) extends to the bottom of the movable seat (1).

6. The drilling anti-deviation device according to any one of claims 1-5, characterized in that: It also includes casters (2), which are located at the four bottom corners of the movable seat (1), and a push rod (3) is fixedly installed on the right side of the movable seat (1).

7. The drilling anti-deviation device according to claim 6, characterized in that: The four corners of the bottom of the movable seat (1) are provided with storage compartments (21), and each set of storage compartments (21) is movably installed with a movable plate (23), and the bottom of the movable plate (23) is provided with casters (2).

8. The drilling anti-deviation device according to claim 7, characterized in that: Hydraulic cylinders (22) are fixedly installed at the four corners of the top of the movable seat (1). The telescopic ends of the hydraulic cylinders (22) penetrate into the interior of the storage compartment (21) and are fixedly connected to the movable plate (23).

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