Drilling mechanism

Abstract

According to the drilling mechanism, the rack is arranged on the conveying device, the outer drill tower is rotationally connected with the rack, conveying of the rack and the outer drill tower is achieved, and meanwhile the rack is provided with the telescopic supporting device used for supporting the ground when stretching out; the outer drilling tower is used for rotating to the side part of the rack when the supporting device is supported on the ground so as to be close to a to-be-drilled plane; the grabbing device is arranged on the outer drill tower, the inner drill tower is movably arranged in the outer drill tower, a first power head is arranged at the first end of the inner drill tower, and a righting locking device and a second power head are arranged at the second end of the inner drill tower. The first power head, the grabbing device and the righting and locking device are matched to achieve a first power head drilling mode, the first power head and the second power head are matched to achieve a double-power-head casing-following drilling mode, and compared with a traditional single drilling mode, the drilling requirements of different stratums and different engineering projects are met, and the double-power-head casing-following drilling device is suitable for complex geological conditions and high in drilling efficiency. And the flexibility and adaptability of drilling operation are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a drilling mechanism. Background Art

[0002] With the continuous innovation of drilling technology, the iteration cycle of drilling equipment has been significantly shortened, and it is moving towards a higher degree of integration, modularization and intelligence. This series of technological leaps has not only greatly enriched the drilling methods, but also significantly improved the efficiency and accuracy of drilling operations. At the same time, with the growth of demand for deep resource exploration, drilling technology has increasingly focused on environmental adaptability, cost control, and automation and intelligence of the operation process to meet the industry's urgent needs for efficient, safe and sustainable exploration.

[0003] Although existing drilling tower technology plays an indispensable role in geological exploration operations, it still has problems such as functional limitations and lack of flexibility. Most drilling towers are designed for specific drilling purposes and are difficult to adapt to changing geological conditions and diverse exploration needs. This not only limits the drilling tower's ability to operate in complex terrain or special geological structures, but also requires frequent replacement or adjustment of equipment during the drilling process, increasing costs and time consumption, and affecting the overall flexibility and response speed of exploration. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present application provides a drilling mechanism.

[0005] The specific technical solutions are as follows:

[0006] A drilling mechanism, comprising a frame, a transport device, an outer drilling tower, an inner drilling tower, a grabbing device and a feeding system, wherein the frame is arranged on the transport device, the outer drilling tower is rotatably connected to the frame, and the transport device is used to drive the frame and the outer drilling tower to move when the outer drilling tower rotates to the upper side of the frame;

[0007] The frame is provided with a retractable support device for supporting the ground when extended; the outer drilling tower is used to rotate to the side of the frame and perpendicular to the plane to be drilled when the support device is supported on the ground;

[0008] The grabbing device is arranged on the outer drilling tower, and is used for driving the outer drilling tower to grab the first drilling tool to be connected when the outer drilling tower approaches the plane to be drilled; the inner drilling tower is movably arranged in the outer drilling tower, and the first end of the inner drilling tower is provided with a first power head, and the first power head is configured to dock with the first drilling tool to be connected grabbed by the grabbing device; the second end of the inner drilling tower is rotatably provided with a straightening and locking device, and the straightening and locking device is used for straightening the first drilling tool to be connected and locking the first drilling tool to be connected with the first previous drilling tool of the plane to be drilled; the feeding system is used for driving the first power head to drive the first drilling tool to be connected to drill downward when the first drilling tool to be connected is locked with the first previous drilling tool;

[0009] The first power head is also configured to dock with an external second drill tool to be connected, and the second end of the inner drilling tower is also movably provided with a second power head, and the second power head is used to lock the second drill tool to be connected with the second prior drill tool on the plane to be drilled; the feeding system is also used to drive the first power head and the second power head to drive the second drill tool to be connected to drill downward when the second drill tool to be connected is locked with the second prior drill tool.

[0010] In a specific embodiment, the first power head includes a first seat body, a first adjustment device and a first connection assembly, wherein the first seat body is disposed at the first end of the inner drilling tower, and the first connection assembly is rotatably connected to the first seat body; the first adjustment device is liftably disposed on the first seat body and is connected to the first connection assembly, and is used to drive the first connection assembly to switch between the first docking position and the second docking position during lifting;

[0011] The first connection assembly includes a drill rod connector and a casing connector, the drill rod connector passes through the casing connector and faces the plane to be drilled, and there is a preset height between the bottom of the drill rod connector and the bottom of the casing connector, and the preset height is between 5 cm and 100 cm;

[0012] The first drill tool to be connected includes a first drill rod to be connected, the second drill tool to be connected includes a second drill rod to be connected and a casing to be connected, the second drill rod to be connected is arranged in the casing to be connected, and the end of the second drill rod to be connected is exposed from the casing to be connected; the first connecting assembly is configured to make the drill rod connector dock with the first drill rod to be connected in the first docking position; and to make the drill rod connector dock with the second drill rod to be connected and the casing connector dock with the casing to be connected in the second docking position.

[0013] In a specific embodiment, the second power head includes a second seat body and a second adjustment device, the second seat body is arranged on the inner drilling tower, and the second adjustment device is respectively connected to the inner drilling tower and the second seat body, and is used to drive the second seat body to move relative to the inner drilling tower to approach or move away from the plane to be drilled;

[0014] The second seat body has a through hole for the first casing to pass through, and the second seat body is provided with a fork device on a side close to the first power head, and the fork device has an opening, and the opening is used to clamp the second first drill rod;

[0015] The first connecting assembly is connected to the inner drilling tower through the first seat body, and is used to drive the second drill rod to be connected on the first connecting assembly to contact with the second previous drill rod, and drive the casing to be connected on the first connecting assembly to contact with the previous casing when the inner drilling tower moves;

[0016] The drilling system is used to drive the drill rod connector to rotate so as to lock the second drill rod to be connected and the second prior drill rod when the second drill rod to be connected contacts the second prior drill rod, and to drive the casing connector to rotate so as to lock the casing to be connected and the prior casing when the casing to be connected contacts the prior casing, and to drill downward after locking.

[0017] In a specific embodiment, the grasping device comprises a grasping portion and a flipping portion connected to each other, the grasping portion having at least one grasping end for grasping the first drill rod to be connected, and the flipping portion is used to drive the grasping portion to switch between a grasping position and a delivery position, so that the grasping end grasps the first drill rod to be connected at the grasping position;

[0018] The drill rod connector is used to move to the first docking position to dock the end of the first drill rod to be connected on the grabbing part when the grabbing part is at the delivery position;

[0019] The straightening and locking device comprises a straightening assembly and a tightening assembly, wherein the straightening assembly is arranged on a side of the tightening assembly away from the plane to be drilled, and is used to straighten the first drill rod to be connected; the tightening assembly is used to clamp and tighten the first drill rod to be connected and the first preceding drill rod after the first drill rod to be connected is straightened;

[0020] The drilling system is used to drive the drill rod connector and the casing connector to drill downward when the first drill rod to be connected is locked with the previous drill rod.

[0021] In a specific embodiment, the tightening assembly includes a main tong, a backup tong and a tightening cylinder, the backup tong is closer to the plane to be drilled than the main tong, the backup tong is used to clamp the end of the first preceding drill rod, and the main tong is used to clamp the tail of the first drill rod to be connected;

[0022] The tightening oil cylinder is connected to the main tongs, and is used for driving the first drill rod to be connected to rotate when the main tongs clamp the first drill rod to be connected so as to lock the first drill rod to be connected with the first preceding drill rod.

[0023] In a specific embodiment, the straightening assembly includes a first straightening member and a second straightening member, wherein the first straightening member is located at a side of the main tong away from the backup tong and faces the jaws of the main tong, and is used for straightening the first drill rod to be connected on the main tong.

[0024] The second straightening member is further away from the main tongs than the first straightening member, and is used for second straightening the first drill rod to be connected on the main tongs.

[0025] In a specific embodiment, the second straightening member includes a first fitting portion and a second fitting portion, the first fitting portion and the second fitting portion are connected to form a preset angle, and the first fitting portion and the second fitting portion have elastic pads on one side facing each other;

[0026] A preset angle is formed between the first fitting portion and the second fitting portion, and the preset angle is between 40° and 60°; or an angle adjustment member is provided between the first fitting portion and the second fitting portion, and the first fitting portion and the second fitting portion are connected via the angle adjustment member, and the angle adjustment member is used to adjust the opening angle between the first fitting portion and the second fitting portion.

[0027] In a specific embodiment, it further includes an electric control system, which is arranged on the frame and electrically connected to the supporting device and the transport device;

[0028] A lifting device is provided between the frame and the outer drilling tower, and the lifting device is connected to the frame and the outer drilling tower respectively, and is used to rotate the outer drilling tower to the top of the frame and tilt it relative to the frame, or rotate the outer drilling tower to the side of the frame.

[0029] In a specific embodiment, the inner drilling tower has a first side and a second side, and the second power head is detachably arranged on the first side; a rotating member is provided between the straightening and locking device and the outer drilling tower, and the straightening and locking device is connected to the outer drilling tower through the rotating member, and is used to rotate relative to the outer drilling tower to switch between the first side and the second side.

[0030] In a specific embodiment, the sleeve connector is provided with a detachable fastener, and the sleeve connector is connected to the sleeve to be connected via the fastener; or the inner wall of the sleeve connector is provided with a threaded structure for connecting to the sleeve to be connected.

[0031] This application has at least the following beneficial effects:

[0032] The present application proposes a drilling mechanism, including a frame, a transport device, an outer drilling tower, an inner drilling tower, a grabbing device and a feeding system. The frame is arranged on the transport device, and the outer drilling tower is rotatably connected to the frame. The transport device is used to drive the frame and the outer drilling tower to move when the outer drilling tower rotates to the top of the frame; a retractable supporting device is provided on the frame to support the ground when extended; the outer drilling tower is used to rotate to the side of the frame and be perpendicular to the plane to be drilled when the supporting device is supported on the ground; the grabbing device is arranged on the outer drilling tower, and is used to drive the outer drilling tower to grab the first drilling tool to be connected when it is close to the plane to be drilled; the inner drilling tower is movably arranged in the outer drilling tower, and a first power head is provided at the first end of the inner drilling tower, and the first power head is configured to dock with the grabbing device The first drill tool to be connected is grasped; the second end of the inner drilling tower is rotatably provided with a straightening and locking device, which is used to straighten the first drill tool to be connected and lock the first drill tool to be connected with the first previous drill tool on the plane to be drilled; the feeding system is used to drive the first power head to drive the first drill tool to be connected to drill downward when the first drill tool to be connected is locked with the first previous drill tool; the first power head is also configured to dock with the second external drill tool to be connected, and the second end of the inner drilling tower is also movably provided with a second power head, which is used to lock the second drill tool to be connected with the second previous drill tool on the plane to be drilled; the feeding system is also used to drive the first power head and the second power head to drive the second drill tool to be connected to drill downward when the second drill tool to be connected is locked with the second previous drill tool. This application realizes the transportation of the inner drilling tower to quickly reach the plane to be drilled through the cooperation between the transport device, the frame, the outer drilling tower, the support device and the inner drilling tower, and the first power head and the second power head are both set on the inner drilling tower, and the inner drilling tower drives the first power head and the second power head to move up and down. This design makes the drilling mechanism compact and easy to operate, and enhances the stability and accuracy during the drilling process. Further, according to the drilling requirements of different strata and different engineering projects, this application provides two drilling methods, namely, drill rod drilling (first power head drilling mode) and drill rod and casing drilling at the same time (dual power head and pipe drilling mode). Compared with the traditional method of relying only on drill rod drilling, the drilling cycle is greatly shortened, the cost is reduced, and the safety and efficiency of the drilling operation are improved. In addition, the presence of casing improves the well control condition. This technology is particularly suitable for complex geological conditions, such as loose strata and quicksand layers, and can effectively prevent the collapse of the hole wall and improve the drilling efficiency. It can be seen that the combined application of the two drilling modes not only enhances the flexibility and adaptability of drilling operations, but also significantly improves the efficiency and safety of resource exploration.

[0033] Furthermore, the first power head includes a first seat body, a first adjustment device and a first connecting assembly, the first seat body is arranged at the first end of the inner drilling tower, and the first connecting assembly is rotatably connected to the first seat body; the first adjustment device is arranged on the first seat body in a liftable manner and is connected to the first connecting assembly, and is used to drive the first connecting assembly to switch between the first docking position and the second docking position during lifting; the first connecting assembly includes a drill rod connector and a casing connector, the drill rod connector passes through the casing connector and faces the plane to be drilled, and there is a preset height between the bottom of the drill rod connector and the bottom of the casing connector, and the preset height is between 5cm and 100cm; the first drilling tool to be connected includes a first drill rod to be connected, a second drilling tool to be connected The invention comprises a second drill rod to be connected and a casing to be connected, wherein the second drill rod to be connected is arranged in the casing to be connected, and the end of the second drill rod to be connected is exposed from the casing to be connected; the first connection assembly is configured to make the drill rod connector dock with the first drill rod to be connected in the first docking position; and make the drill rod connector dock with the second drill rod to be connected and make the casing connector dock with the receiving casing in the second docking position. Based on the present application, a method for drilling the drill rod and the casing at the same time is provided. The present application specially designs the structure of the first power head. Through the cooperation of the first seat body, the first adjustment device and the first connection assembly, the drill rod connector and the casing connector can be flexibly switched between the first docking position and the second docking position, thereby meeting the requirements of different drilling modes. In the first docking position, the drill rod connector can smoothly dock with the first drill rod to be connected and perform traditional drill rod drilling operations; and in the second docking position, while the drill rod connector docks with the second drill rod to be connected, the casing connector can also dock with the receiving casing, realizing dual power head pipe drilling, which greatly improves the flexibility and efficiency of drilling operations. Furthermore, the height difference between the bottom of the drill rod connector and the bottom of the casing connector of the present application is between 5cm and 100cm, which ensures a reasonable space between the drill rod connector and the casing connector, so that the casing to be connected and the second drill rod to be connected can be better connected, and the tail of the second drill rod to be connected can be exposed from the tail of the casing to be connected, so as to facilitate the subsequent docking of the tail of the second drill rod to be connected with the end of the second preceding drill rod.

[0034] Furthermore, the second power head includes a second seat body and a second adjusting device, the second seat body is arranged on the inner drilling tower, the second adjusting device is respectively connected to the inner drilling tower and the second seat body, and is used to drive the second seat body to move relative to the inner drilling tower to approach or move away from the plane to be drilled; the second seat body is provided with a through hole for the previous casing to pass through, and the second seat body is provided with a fork device on a side close to the first power head, and the fork device has an opening, and the opening is used to clamp the second previous drill rod; the first connecting assembly is connected to the inner drilling tower through the first seat body, and is used to drive the second drill rod to be connected on the first connecting assembly to contact with the second previous drill rod, and drive the casing to be connected on the first connecting assembly to contact with the previous casing when the inner drilling tower moves; the drilling system is used to drive the drill rod connector to rotate when the second drill rod to be connected contacts the second previous drill rod, so as to lock the second drill rod to be connected and the second previous drill rod, and when the casing to be connected contacts the previous casing, drive the casing connector to rotate so as to lock the casing to be connected and the previous casing, and drill downward after locking. The present application drives the second seat body to move relative to the inner drilling tower through the second adjustment device, thereby more accurately adjusting the distance between the second power head and the plane to be drilled, ensuring that the second drill rod to be connected and the second previous drill rod, and the casing to be connected and the previous casing can be accurately connected during the drilling process. In addition, by providing a through hole for the previous casing to pass through, and then clamping the second previous drill rod passing through the previous casing through the pad fork device, the second drill rod to be connected and the second previous drill rod, and the casing to be connected and the previous casing can be better connected during the subsequent drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A first schematic diagram of a drilling mechanism provided in this embodiment;

[0037] Figure 2 A second schematic diagram of the drilling mechanism provided in this embodiment;

[0038] Figure 3 A third schematic diagram of the drilling mechanism provided in this embodiment;

[0039] Figure 4 A schematic diagram of the structure of the righting and locking device provided in this embodiment;

[0040] Figure 5 A schematic diagram of the structure of the grabbing device provided in this embodiment;

[0041] Figure 6A schematic diagram of the structure of the first power head provided in this embodiment;

[0042] Figure 7 A schematic diagram of the structure of the second power head provided in this embodiment;

[0043] Figure 8 A schematic diagram of the modules of the feeding system, the first power head and the second power head provided in this embodiment.

[0044] Reference numerals:

[0045] 1-frame; 2-external drilling tower; 3-transportation device; 4-inner drilling tower; 5-grabbing device; 6-feeding system; 7-rightening and locking device; 8-first power head; 9-second power head; 10-support device; 11-electric control system; 12-lifting device; 13-first drilling tool to be connected; 14-second drilling tool to be connected;

[0046] 401 - first side; 402 - second side; 403 - first end; 404 - second end;

[0047] 501-grasping part; 502-turning part;

[0048] 701- tightening assembly; 702- straightening assembly; 703- rotating part;

[0049] 7011-back-up clamp; 7012-main clamp; 7013-tightening cylinder;

[0050] 70121- Jaws;

[0051] 7021-second righting piece; 7022-first righting piece;

[0052] 70211-first laminating portion; 70212-second laminating portion;

[0053] 801-first seat body; 802-first adjustment device; 803-first connecting assembly;

[0054] 8031-drill pipe connector; 8032-casing connector;

[0055] 901 second seat body; 902- second adjustment device; 903- limiting structure;

[0056] 9031-through hole; 9032-fork device. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0058] In the description of the present application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] like Figure 1 , 2 , 8, a drilling mechanism, including a frame 1, an outer drilling tower 2, a transport device 3, an inner drilling tower 4, a grabbing device 5 and a feeding system 6, the frame 1 is arranged on the transport device 3, the outer drilling tower 2 is rotatably connected to the frame 1, and the transport device 3 is used to drive the frame 1 and the outer drilling tower 2 to move when the outer drilling tower 2 rotates to the upper part of the frame 1;

[0061] The frame 1 is provided with a retractable support device 10 for supporting the ground when extended; the outer drilling tower 2 is used to rotate to the side of the frame 1 when the support device 10 is supported on the ground, and is perpendicular to the plane to be drilled;

[0062] The grabbing device 5 is arranged on the outer drilling tower 2, and is used to drive the outer drilling tower 2 to grab the first drilling tool 13 to be connected when it is close to the plane to be drilled (not shown in the figure); the inner drilling tower 4 is movably arranged in the outer drilling tower 2, and the first end 403 of the inner drilling tower 4 is provided with a first power head 8, and the first power head 8 is configured to dock the first drilling tool 13 to be connected grabbed by the grabbing device 5; the second end 404 of the inner drilling tower 4 is rotatably provided with a straightening and locking device 7, and the straightening and locking device 7 is used to straighten the first drilling tool 13 to be connected and lock the first drilling tool 13 to be connected with the first previous drilling tool of the plane to be drilled; the feeding system 6 is used to drive the first power head 8 to drive the first drilling tool 13 to be connected to drill downward when the first drilling tool 13 to be connected is locked with the first previous drilling tool;

[0063] The first power head 8 is also configured to dock with an external second drill tool 14 to be connected. The second end 404 of the inner drilling tower 4 is also movably provided with a second power head 9, and the second power head 9 is used to lock the second drill tool 14 to be connected with the second prior drill tool on the plane to be drilled; the feeding system 6 is also used to drive the first power head 8 and the second power head 9 to drive the second drill tool 14 to be connected to drill downward when the second drill tool 14 to be connected is locked with the second prior drill tool.

[0064] The present application realizes the transportation of the inner drilling tower 4 to reach the plane to be drilled through the cooperation between the transport device 3, the frame 1, the outer drilling tower 2, the support device 10 and the inner drilling tower 4, and the first power head and the second power head are both arranged on the inner drilling tower 4, and the inner drilling tower 4 drives the first power head and the second power head to move up and down. This design makes the drilling mechanism compact and easy to operate, and enhances the stability and precision during the drilling process. Further, the present application provides two drilling modes according to the drilling requirements of different strata and different engineering projects, namely, drill rod drilling (first power head 8 drilling mode) and drill rod and casing drilling at the same time (dual power head and pipe drilling mode). Compared with the traditional method of relying only on drill rod drilling, the drilling cycle is greatly shortened, the cost is reduced, and the safety and efficiency of the drilling operation are improved. In addition, the presence of the casing improves the well control condition. This technology is particularly suitable for complex geological conditions, such as loose strata and quicksand layers, and can effectively prevent the collapse of the hole wall and improve the drilling efficiency. It can be seen that the combined application of the two drilling modes not only enhances the flexibility and adaptability of drilling operations, but also significantly improves the efficiency and safety of resource exploration.

[0065] The plane to be drilled is the ground on which the first prior drilling tool and the second prior drilling tool are pre-installed.

[0066] like Figure 1 , 2As shown in , 6, the first power head 8 includes a first seat body 801, a first adjustment device 802 and a first connection assembly 803. The first seat body 801 is arranged at the first end 403 of the inner drilling tower 4; the first adjustment device 802 is arranged on the first seat body 801 and connected to the first connection assembly 803, and is used to drive the first connection assembly 803 to switch between the first docking position and the second docking position;

[0067] The first connection assembly 803 includes a drill rod connector 8031 ​​and a casing connector 8032. The drill rod connector 8031 ​​passes through the casing connector 8032 and faces the plane to be drilled. There is a preset height between the bottom of the drill rod connector 8031 ​​and the bottom of the casing connector 8032. The preset height is between 5 cm and 100 cm.

[0068] The first drill tool 13 to be connected includes a first drill rod to be connected, and the second drill tool 14 to be connected includes a second drill rod to be connected and a casing to be connected. The second drill rod to be connected is arranged in the casing to be connected, and the end of the second drill rod to be connected is exposed from the casing to be connected; the first connecting assembly 803 is configured to make the drill rod connector 8031 ​​dock with the first drill rod to be connected in the first docking position; and to make the drill rod connector 8031 ​​dock with the second drill rod to be connected and the casing connector 8032 dock with the casing to be connected in the second docking position.

[0069] In this embodiment, the first adjusting device 802 is a cylinder, and the cylinder moves downward to push the first connecting component 803 to rotate relative to the first seat body 801, so as to achieve the tilting of the first connecting component 803.

[0070] Based on the fact that the present application provides a method for drilling a drill rod and a casing at the same time, the present application has specially designed the structure of the first power head 8. Through the cooperation of the first seat body 801, the first adjustment device 802 and the first connecting assembly 803, the drill rod connector 8031 ​​and the casing connector 8032 can be flexibly switched between the first docking position and the second docking position, thereby meeting the needs of different drilling modes. In the first docking position, the drill rod connector 8031 ​​can smoothly dock with the first drill rod to be connected, and perform traditional drill rod drilling operations; while in the second docking position, while the drill rod connector 8031 ​​docks with the second drill rod to be connected, the casing connector 8032 can also dock with the casing to be connected, realizing dual power head follow-up drilling, which greatly improves the flexibility and efficiency of the drilling operation. Furthermore, the height difference between the bottom of the drill rod connector 8031 ​​and the bottom of the casing connector 8032 of the present application is between 5cm and 100cm, ensuring a reasonable space between the drill rod connector 8031 ​​and the casing connector 8032, so that the casing to be connected and the second drill rod to be connected can be better connected, and the tail of the second drill rod to be connected can be exposed from the tail of the casing to be connected, so as to facilitate the subsequent docking of the tail of the second drill rod to be connected with the end of the second preceding drill rod.

[0071] In this embodiment, the casing connector 8032 and the first seat body 801 are detachably connected. When performing conventional drill rod drilling operations, the casing connector 8032 can be removed from the first seat body 801, and the first connection assembly 803 (drill rod connector 8031) is switched to the first docking position, so that the drill rod connector 8031 ​​can smoothly dock with the first drill rod to be connected. When performing dual-power head pipe drilling, the casing connector 8032 is reinstalled on the first seat body 801, and the first connection assembly 803 (drill rod connector 8031, casing connector 8032) is switched to the second docking position, so that the drill rod connector 8031 ​​docks with the second drill rod to be connected, and the casing connector 8032 can also dock with the receiving casing.

[0072] The first drill rod to be connected and the second drill rod to be connected have the same structure, and the second drill rod to be connected and the casing to be connected have the same length. In one embodiment, the second drill rod to be connected and the casing to be connected are both 6 meters long.

[0073] like Figure 1 , 2 As shown in FIGS. 6 and 7 , the second power head 9 includes a second seat body 901 and a second adjusting device 902. The second seat body 901 is arranged on the inner drilling tower 4. The second adjusting device 902 is respectively connected to the inner drilling tower 4 and the second seat body 901, and is used to drive the second seat body 901 to move relative to the inner drilling tower 4 to approach or move away from the plane to be drilled;

[0074] The second seat body 901 has a through hole 9031 for the first casing to pass through, and the second seat body 902 is provided with a fork device 9032 on one side close to the first power head 8. The fork device 9032 has an opening for clamping the second first drill rod.

[0075] The first connection assembly 803 is connected to the inner drilling tower 4 through the first seat body 801, and is used to drive the second drill rod to be connected on the first connection assembly 803 to contact with the second previous drill rod, and drive the casing to be connected on the first connection assembly 803 to contact with the previous casing when the inner drilling tower 4 moves;

[0076] The drilling system is used to drive the drill rod connector 8031 ​​to rotate so as to lock the second drill rod to be connected and the second prior drill rod when the second drill rod to be connected contacts the second prior drill rod, and to drive the casing connector 8032 to rotate so as to lock the casing to be connected and the prior casing when the casing to be connected contacts the prior casing, and drill downward after locking.

[0077] The present application drives the second seat body 901 to move relative to the inner drilling tower 4 through the second adjusting device 902, so as to more accurately adjust the distance between the second power head 9 and the plane to be drilled, and by setting a through hole 9031 for the prior casing to pass through, and then clamping it on the second prior drill rod passing through the prior casing through the fork device 9032, so that the second drill rod to be connected and the second prior drill rod, and the casing to be connected and the prior casing can be accurately connected during the subsequent drilling process.

[0078] In this embodiment, the through hole 9031 is arranged in the middle of the second base body 901, and the fork device 9032 is telescopically arranged on the side of the second base body 901 facing the first power head 8, which is used to clamp the second prior drill rod when extended, and retract when the second drill rod to be connected is locked with the second prior drill rod.

[0079] like Figure 1 , 2 As shown in , 4, 5, and 8, the grasping device 5 includes a grasping portion 501 and a flipping portion 502 connected to each other, the grasping portion 501 has at least one grasping end for grasping the first drill rod to be connected, and the flipping portion 502 is used to drive the grasping portion 501 to switch between the grasping position and the delivery position, so that the grasping end grasps the first drill rod to be connected at the grasping position;

[0080] The drill rod connector 8031 ​​is used to move to a first docking position to dock with the end of a first drill rod to be connected on the grabbing portion 501 when the grabbing portion 501 is at the delivery position;

[0081] The straightening and locking device 7 comprises a tightening assembly 701 and a straightening assembly 702. The straightening assembly 702 is arranged on a side of the tightening assembly 701 away from the plane to be drilled, and is used to straighten the first drill rod to be connected. The tightening assembly 701 is used to clamp and tighten the first drill rod to be connected and the first preceding drill rod after the first drill rod to be connected is straightened.

[0082] The drilling system is used to drive the drill rod connector 8031 ​​and the casing connector 8032 to drill downward when the first drill rod to be connected is locked with the previous drill rod.

[0083] The combined action of the grabbing part 501, the flipping part 502 and the drill rod connector 8031 ​​of the present application realizes the efficient grabbing and accurate delivery of the first drill rod to be connected. The whole process is mechanized and automated, and no human intervention is required, which not only simplifies the operation process, but also significantly improves the operation efficiency. Furthermore, through the cooperation of the tightening component 701 and the straightening component 702 in the straightening and locking device 7, the alignment between the first drill rod to be connected and the first preceding drill rod is realized, ensuring the tight locking between the first drill rod to be connected and the first preceding drill rod, thereby improving the stability of the first drill rod to be connected and the first preceding drill rod during the drilling process.

[0084] like Figure 4As shown, specifically, the tightening assembly 701 includes a back-up clamp 7011, a main clamp 7012 and a tightening cylinder 7013. The back-up clamp 7011 is closer to the plane to be drilled than the main clamp 7012. The back-up clamp 7011 is used to clamp the end of the first preceding drill rod, and the main clamp 7012 is used to clamp the tail of the first drill rod to be connected.

[0085] The tightening cylinder 7013 is connected to the main tongs 7012, and is used to drive the first drill rod to be connected to rotate when the main tongs 7012 clamps the first drill rod to be connected so as to lock the first drill rod to be connected with the first preceding drill rod.

[0086] After the straightening assembly 702 of the present application straightens the first drill rod to be connected, the main clamp 7012 clamps the tail of the first drill rod to be connected, and the tightening cylinder 7013 drives the main clamp 7012 to rotate so that the first drill rod to be connected is locked with the first previous drill rod. This design not only simplifies the locking process and improves work efficiency, but also ensures the firmness and reliability of the drill rod connection, and effectively avoids safety hazards caused by loose connection.

[0087] Specifically, Figure 4 As shown, the straightening assembly 702 includes a first straightening member 7022 and a second straightening member 7021. The first straightening member 7022 is located on a side of the main clamp 7012 away from the backup clamp 7011 and faces the jaw 70121 of the main clamp 7012, and is used for straightening the first drill rod to be connected on the main clamp 7012. The second straightening member 7021 is farther away from the main clamp 7012 than the first straightening member 7022, and is used for straightening the first drill rod to be connected on the main clamp 7012 for a second time. The present application straightens the first drill rod to be connected multiple times through the first straightening member 7022 and the second straightening member 7021, so that the first drill rod to be connected can be well connected with the first preceding drill rod, thereby improving the firmness and reliability of the drill rod connection.

[0088] like Figure 1-8 As shown, the second straightening member 7021 includes a first fitting portion 70211 and a second fitting portion 70212, the first fitting portion 70211 and the second fitting portion 70212 are connected to form a preset angle, and the first fitting portion 70211 and the second fitting portion 70212 are provided with elastic pads on one side facing each other;

[0089] A preset angle is formed between the first fitting portion 70211 and the second fitting portion 70212, and the preset angle is between 40° and 60°; or an angle adjustment piece is provided between the first fitting portion 70211 and the second fitting portion 70212, and the first fitting portion 70211 and the second fitting portion 70212 are connected by the angle adjustment piece, and the angle adjustment piece is used to adjust the opening angle between the first fitting portion 70211 and the second fitting portion 70212.

[0090] The present application forms a preset angle by connecting the first fitting part 70211 and the second fitting part 70212, so that the second straightening member 7021 can closely fit the surface of the first drill rod to be connected to improve the straightening effect, and by equipping the first fitting part 70211 and the second fitting part 70212 with elastic pads, the friction between the first drill rod to be connected and the fitting part is effectively reduced, thereby reducing the wear of the equipment. Furthermore, the present application also provides two implementation methods of connecting the first fitting part 70211 and the second fitting part 70212. In one embodiment, the first fitting part 70211 and the second fitting part 70212 are connected as a whole to form a preset angle, and the preset angle is between 40°-60°. The selection of this range not only ensures that the straightening component 702 has good support for the drill rod, but also avoids the inconvenience of operation caused by too large an angle. In addition, in another embodiment, when the straightening assembly 702 uses an angle adjustment member to connect the first fitting portion 70211 and the second fitting portion 70212, the opening angle between the two can be flexibly adjusted to adapt to drill rods of different diameters or under different drilling conditions, further enhancing the applicability and flexibility of the straightening assembly 702.

[0091] like Figure 1-8 As shown, the drilling mechanism of the present application further includes an electric control system 11, which is disposed on the frame 1 and is electrically connected to the supporting device 10 and the transport device 3;

[0092] A lifting device 12 is provided between the frame 1 and the outer drilling tower 2, and the lifting device 12 is connected to the frame 1 and the outer drilling tower 2 respectively, and is used to rotate the outer drilling tower 2 to the top of the frame 1 and tilt it relative to the frame 1, or rotate the outer drilling tower 2 to the side of the frame 1 and make it perpendicular to the plane to be drilled.

[0093] The electric control system 11 includes a control console, an electric control cabinet, and the like.

[0094] The drilling mechanism of the present application arranges the electric control system 11 and the drilling system on different racks respectively, so that the space allocation is more reasonable, and a lifting device 12 is arranged between the rack 1 and the outer drilling tower 2. The design of the lifting device 12 enables the outer drilling tower 2 to flexibly switch between the upper inclined position and the side position of the rack 1. This function not only facilitates the arrangement and adjustment of the drilling mechanism in different working environments, but also greatly improves the flexibility and adaptability of the equipment. For example, when it is necessary to cross obstacles or perform drilling at special angles, the lifting device 12 can quickly adjust the position of the outer drilling tower 2 to ensure that the drilling operation can proceed smoothly. In addition, the lifting device 12 also simplifies the transportation and storage process of the drilling mechanism, reducing the difficulty and cost of operation.

[0095] like Figure 1-8As shown, the second power head 9 is detachably arranged on the inner drilling tower 4, and the inner drilling tower 4 has a first side 401 and a second side 402. A rotating member 703 is provided between the righting and locking device 7 and the outer drilling tower 2. The righting and locking device 7 is connected to the outer drilling tower 2 through the rotating member 703, and is used to rotate relative to the outer drilling tower 2 to switch between the first side 401 and the second side 402. The present application enables the drilling mechanism to quickly replace or adjust the power head according to different operation requirements by detachably arranging the second power head 9 on the inner drilling tower 4, thereby improving the versatility and flexibility of the equipment. Secondly, the righting and locking device 7 is connected to the outer drilling tower 2 through the rotating member 703, realizing the rotation function relative to the outer drilling tower 2, so that it is located on the first side 401 during righting and locking, and is located on the second side 402 when the power head is drilling.

[0096] The sleeve connector 8032 is provided with a detachable fastener (not shown in the figure), and the sleeve connector 8032 is connected to the sleeve to be connected through the fastener; or the inner wall of the sleeve connector 8032 is provided with a threaded structure for connecting to the sleeve to be connected (not shown in the figure). The detachable connection between the sleeve connector 8032 and the sleeve to be connected is achieved by the fastener or the threaded structure, which is simple in structure and enhances the versatility and flexibility of the device.

[0097] The fastener may be a screw, a bolt, or a latch.

[0098] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

[0099] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A drilling mechanism, characterized in that: It comprises a frame, a transport device, an outer drilling tower, an inner drilling tower, a grabbing device and a feeding system, wherein the frame is arranged on the transport device, the outer drilling tower is rotatably connected to the frame, and the transport device is used for driving the frame and the outer drilling tower to move when the outer drilling tower rotates to the upper part of the frame; The frame is provided with a retractable support device for supporting the ground when extended; the outer drilling tower is used to rotate to the side of the frame and perpendicular to the plane to be drilled when the support device is supported on the ground; The grabbing device is arranged on the outer drilling tower, and is used for driving the outer drilling tower to grab the first drilling tool to be connected when the outer drilling tower approaches the plane to be drilled; the inner drilling tower is movably arranged in the outer drilling tower, and the first end of the inner drilling tower is provided with a first power head, and the first power head is configured to dock with the first drilling tool to be connected grabbed by the grabbing device; the second end of the inner drilling tower is rotatably provided with a straightening and locking device, and the straightening and locking device is used for straightening the first drilling tool to be connected and locking the first drilling tool to be connected with the first previous drilling tool of the plane to be drilled; the feeding system is used for driving the first power head to drive the first drilling tool to be connected to drill downward when the first drilling tool to be connected is locked with the first previous drilling tool; The first power head is also configured to dock with an external second drill tool to be connected, and the second end of the inner drilling tower is also movably provided with a second power head, and the second power head is used to lock the second drill tool to be connected with the second prior drill tool on the plane to be drilled; the feeding system is also used to drive the first power head and the second power head to drive the second drill tool to be connected to drill downward when the second drill tool to be connected is locked with the second prior drill tool.

2. The drilling mechanism according to claim 1, characterized in that: The first power head includes a first seat body, a first adjustment device and a first connection assembly, wherein the first seat body is arranged at the first end of the inner drilling tower, and the first connection assembly is rotatably connected to the first seat body; the first adjustment device is liftably arranged on the first seat body and connected to the first connection assembly, and is used to drive the first connection assembly to switch between the first docking position and the second docking position during lifting; The first connection assembly includes a drill rod connector and a casing connector, the drill rod connector passes through the casing connector and faces the plane to be drilled, and there is a preset height between the bottom of the drill rod connector and the bottom of the casing connector, and the preset height is between 5 cm and 100 cm; The first drill tool to be connected includes a first drill rod to be connected, the second drill tool to be connected includes a second drill rod to be connected and a casing to be connected, the second drill rod to be connected is arranged in the casing to be connected, and the end of the second drill rod to be connected is exposed from the casing to be connected; the first connecting assembly is configured to make the drill rod connector dock with the first drill rod to be connected in the first docking position; and to make the drill rod connector dock with the second drill rod to be connected and the casing connector dock with the casing to be connected in the second docking position.

3. The drilling mechanism according to claim 2, characterized in that: The second power head includes a second seat body and a second adjustment device, the second seat body is arranged on the inner drilling tower, and the second adjustment device is respectively connected to the inner drilling tower and the second seat body, and is used to drive the second seat body to move relative to the inner drilling tower to approach or move away from the plane to be drilled; The second seat body has a through hole for the first casing to pass through, and the second seat body is provided with a fork device on a side close to the first power head, and the fork device has an opening, and the opening is used to clamp the second first drill rod; The first connecting assembly is connected to the inner drilling tower through the first seat body, and is used to drive the second drill rod to be connected on the first connecting assembly to contact with the second previous drill rod, and drive the casing to be connected on the first connecting assembly to contact with the previous casing when the inner drilling tower moves; The drilling system is used to drive the drill rod connector to rotate so as to lock the second drill rod to be connected and the second prior drill rod when the second drill rod to be connected contacts the second prior drill rod, and to drive the casing connector to rotate so as to lock the casing to be connected and the prior casing when the casing to be connected contacts the prior casing, and to drill downward after locking.

4. The drilling mechanism according to claim 2, characterized in that: The grabbing device comprises a grabbing portion and a flipping portion connected to each other, the grabbing portion having at least one grabbing end for grabbing the first drill rod to be connected, and the flipping portion is used to drive the grabbing portion to switch between a grabbing position and a delivery position, so that the grabbing end grabs the first drill rod to be connected at the grabbing position; The drill rod connector is used to move to the first docking position to dock the end of the first drill rod to be connected on the grabbing part when the grabbing part is at the delivery position; The straightening and locking device comprises a straightening assembly and a tightening assembly, wherein the straightening assembly is arranged on a side of the tightening assembly away from the plane to be drilled, and is used to straighten the first drill rod to be connected; the tightening assembly is used to clamp and tighten the first drill rod to be connected and the first preceding drill rod after the first drill rod to be connected is straightened; The drilling system is used to drive the drill rod connector and the casing connector to drill downward when the first drill rod to be connected is locked with the previous drill rod.

5. The drilling mechanism according to claim 4, characterized in that: The tightening assembly comprises a main tong, a backup tong and a tightening cylinder, wherein the backup tong is closer to the plane to be drilled than the main tong, the backup tong is used to clamp the end of the first preceding drill rod, and the main tong is used to clamp the tail of the first drill rod to be connected; The tightening oil cylinder is connected to the main tongs, and is used for driving the first drill rod to be connected to rotate when the main tongs clamp the first drill rod to be connected so as to lock the first drill rod to be connected with the first preceding drill rod.

6. The drilling mechanism according to claim 5, characterized in that: The straightening assembly comprises a first straightening member and a second straightening member, wherein the first straightening member is located at a side of the main tong away from the backup tong and faces the jaws of the main tong, and is used for straightening the first drill rod to be connected on the main tong. The second straightening member is further away from the main tongs than the first straightening member, and is used for second straightening the first drill rod to be connected on the main tongs.

7. The drilling mechanism according to claim 6, characterized in that: The second straightening member comprises a first fitting portion and a second fitting portion, the first fitting portion and the second fitting portion are connected to form a preset angle, and the first fitting portion and the second fitting portion both have elastic pads on one side facing each other; A preset angle is formed between the first fitting portion and the second fitting portion, and the preset angle is between 40° and 60°; or an angle adjustment member is provided between the first fitting portion and the second fitting portion, and the first fitting portion and the second fitting portion are connected via the angle adjustment member, and the angle adjustment member is used to adjust the opening angle between the first fitting portion and the second fitting portion.

8. The drilling mechanism according to claim 1, characterized in that: It also includes an electric control system, which is arranged on the frame and is electrically connected to the supporting device and the transporting device; A lifting device is provided between the frame and the outer drilling tower, and the lifting device is connected to the frame and the outer drilling tower respectively, and is used to rotate the outer drilling tower to the top of the frame and tilt it relative to the frame, or rotate the outer drilling tower to the side of the frame.

9. The drilling mechanism according to claim 1, characterized in that: The inner drilling tower has a first side and a second side, and the second power head is detachably arranged on the first side; a rotating member is provided between the straightening and locking device and the outer drilling tower, and the straightening and locking device is connected to the outer drilling tower through the rotating member, and is used to rotate relative to the outer drilling tower to switch between the first side and the second side.

10. The drilling mechanism according to claim 2, characterized in that: The sleeve connector is provided with a detachable fastener, and the sleeve connector is connected to the sleeve to be connected via the fastener; or the inner wall of the sleeve connector is provided with a threaded structure for connecting to the sleeve to be connected.

Images