Drill rod holding tool and drill rod shackle device

Abstract

The invention relates to the technical field of well drilling, and discloses a drill rod holding tool and a drill rod shackle device which comprise two block bodies, a rotating body and a pressing plate. The two block bodies can get close to each other or get away from each other, at least two grooves are formed in each block body, and openings are formed in the sides, close to each other, of the grooves in the two block bodies respectively. A rotating body is rotatably connected in each groove, a pressing plate is arranged on each rotating body, and the pressing plate partially extends out of the opening. When the drill rod needs to be held tightly, after the drill rod is placed between the two block bodies, the two block bodies are close to each other until the pressing plates on the rotating bodies in the grooves in the block bodies abut against the drill rod in an attached mode, and therefore the drill rod is held tightly. As for drill rods with different diameters, due to the fact that the rotating bodies can rotate in the grooves, after the pressing plates on the rotating bodies in the grooves in the block bodies abut against the drill rods, the rotating bodies rotate in the grooves, the pressing plates can abut against the drill rods in an attached mode, the drill rods are tightly held, the pressing plates do not need to be replaced, and operation is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling, in particular to a drill rod clamping tool and a drill rod unthreading device. BACKGROUND

[0002] The drill rod is a drilling tool used in the fields of geological exploration, oil and natural gas exploitation, etc., and is usually composed of a rod body, a coupling and a drill bit, wherein the rod bodies are connected by the couplings. Specifically, the two ends of the rod body are provided with external threads, the two ends of the coupling are provided with internal threads, and the rod body and the coupling are fixed by thread connection. After the exploitation is completed, the drill rod needs to be pulled out from the underground, and then the drill rod is unthreaded and the rod bodies are disassembled, wherein the drill rod is unthreaded, that is, the rod body is rotated out of the adjacent coupling.

[0003] The commonly used unthreading method is to use two clamping tools, one clamping tool clamps the drill rod to be fixed, and the other clamping tool clamps the coupling and rotates to rotate the rod body out of the coupling. The existing clamping tool includes two blocks that can move close to each other, and each block is provided with two pressing blocks on the side close to each other, and the two pressing blocks on the same block form a fixed angle. After the two blocks are respectively placed on the two sides of the drill rod and moved close to each other, the four pressing blocks clamp the drill rod. However, since the angle formed between the two pressing blocks on the same block is fixed, the pressing blocks can only be matched and fitted with the drill rod of a specified outer diameter. When it is necessary to clamp the drill rod of other outer diameters, the pressing blocks need to be replaced, so that the angle formed between the two pressing blocks on the same block changes, so that the pressing blocks can be matched and fitted with the drill rod of other outer diameters. It is inconvenient to operate.

[0004] Therefore, how to solve or improve the problem that the pressing blocks need to be replaced when using the clamping tool to clamp the drill rod of different outer diameters in the related art, which leads to inconvenient operation, has become an important technical problem to be solved by the person skilled in the art. SUMMARY

[0005] Therefore, the present application provides a drill rod unthreading device and a drill rod unthreading device to solve or improve the problem that the pressing blocks need to be replaced when using the clamping tool to clamp the drill rod of different outer diameters in the related art, which leads to inconvenient operation.

[0006] In a first aspect, the present application provides a drill rod clamping tool, comprising: two blocks for moving close to or away from each other, the blocks being provided with at least two grooves, and the grooves on the two blocks being provided with openings on the side close to each other; a rotating body, one rotating body being rotatably connected in each groove; a pressing plate, one pressing plate being provided on each rotating body and partially extending out of the opening.

[0007] In an alternative embodiment, further comprising: A limiting block is connected to each of the rotating bodies, and a limiting groove is arranged on the inner wall of each of the grooves, and the limiting block is inserted into the limiting groove to limit the rotation of the rotating bodies between the first position and the second position.

[0008] In an alternative embodiment, further comprising: A cover plate is arranged in the countersunk groove in communication with the groove, and the cover plate is rotatably arranged in the countersunk groove and connected with the rotating body.

[0009] In an alternative embodiment, further comprising: A frame body is provided with a receiving groove for accommodating a drill rod, and the first sliding groove and the second sliding groove are arranged on the frame body in the same direction, and the first sliding groove and the second sliding groove are respectively arranged on both sides of the receiving groove and respectively communicate with the receiving groove, one of the blocks is slidably connected with the first sliding groove, and the other block is slidably connected with the second sliding groove. A first driving member is arranged on the frame body and connected with the block connected with the first sliding groove, and the first driving member is adapted to drive the block connected with the first sliding groove to slide close to the other block. A second driving member is arranged on the frame body and connected with the block connected with the second sliding groove, and the second driving member is adapted to drive the block connected with the second sliding groove to slide close to the other block.

[0010] In a second aspect, the application further provides a drill rod unhooking device, comprising: A first clamping tool is arranged as any of the drill rod clamping tools described above. A second clamping tool is arranged as any of the drill rod clamping tools described above, and the first clamping tool is aligned with the second clamping tool. A driving assembly is connected with the first clamping tool, and the driving assembly is adapted to drive the first clamping tool to rotate.

[0011] In an alternative embodiment, further comprising: A support is fixedly connected with the second clamping tool, the first clamping tool is rotatably connected with the support, and the driving assembly is connected with the support.

[0012] In an alternative embodiment, the driving assembly comprises: A first telescopic rod, the telescopic end of the first telescopic rod is hinged to the first side of the first clamping tool, and the fixed end of the first telescopic rod is hinged to the support. A second telescopic rod, a telescopic end of the second telescopic rod is hinged with a second side of the first clamping tool, a fixed end of the second telescopic rod is hinged with the support, and the first side of the first clamping tool is oppositely arranged with the second side.

[0013] In an alternative embodiment, further comprising: A lifting assembly connected with the support, the lifting assembly being adapted to drive the support to move along the drill pipe.

[0014] In an alternative embodiment, further comprising: A position detecting element adapted to detect a position to be gripped of the drill pipe; A control module communicatively connected with the position detecting element and the lifting assembly respectively, the control module being adapted to control the lifting assembly to drive the support to move to the position to be gripped according to the position to be gripped.

[0015] In an alternative embodiment, further comprising: A support arm connected with the support; A rotating device connected with the support arm, the rotating device being adapted to drive the support arm to rotate around a rotating center of the rotating device.

[0016] The drill pipe gripping tool provided by the present application comprises two blocks which can move close to or away from each other, at least two grooves are arranged on the blocks, and openings are arranged on the sides of the grooves of the two blocks which move close to each other. A rotating body is rotatably connected in each groove, and a pressing plate is arranged on each rotating body, and the pressing plate partially extends out of the opening. When the drill pipe needs to be gripped, the drill pipe is placed between the two blocks, and then the two blocks are moved close to each other until the pressing plates on the rotating bodies in the grooves of the blocks abut against the drill pipe, so that the drill pipe is gripped. For drill pipes with different diameters, since the rotating bodies can rotate in the grooves, after the pressing plates on the rotating bodies in the grooves of the blocks abut against the drill pipe, the rotating bodies rotate in the grooves so that the pressing plates can abut against the drill pipe, thereby achieving the gripping of the drill pipe without the need to replace the pressing plates, and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific embodiments or the related art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the related art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a connection diagram of the block, the rotating body and the pressing plate of the drill pipe gripping tool of the embodiment of the present application. Figure 2 A block structure diagram of a drill pipe holding tool according to an embodiment of the present application; Figure 3 A structure diagram of a drill pipe holding tool according to an embodiment of the present application; Figure 4 A structure diagram of a drill pipe holding tool according to an embodiment of the present application; Figure 3 An enlarged view of A in FIG. 1; Figure 5 A diagram of a drill pipe holding tool holding a drill pipe with a first outer diameter according to an embodiment of the present application; Figure 6 A diagram of a drill pipe holding tool holding a drill pipe with a first outer diameter according to an embodiment of the present application; Figure 7 A first perspective view diagram of a drill pipe unthreading device according to an embodiment of the present application; Figure 8 A second perspective view diagram of a drill pipe unthreading device according to an embodiment of the present application; Figure 9 A structure diagram of another drill pipe unthreading device according to an embodiment of the present application.

[0019] Explanation of reference signs: 1, pressing plate; 2, block; 21, groove; 211, limiting groove; 22, counterbore groove; 23, sliding groove; 3, rotating body; 4, limiting block; 5, cover plate; 6, frame body; 61, accommodating groove; 7, first driving member; 8, second driving member; 9, first clamping tool; 91, sliding rail; 10, second clamping tool; 11, driving assembly; 111, first telescopic rod; 112, second telescopic rod; 12, support; 13, lifting assembly; 14, position detection element; 15, support arm; 16, rotating device; 17, mounting seat. DETAILED DESCRIPTION To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0020] The embodiments of the present application will be described below in connection with Figures 1 to 9 .

[0021] According to the embodiments of the present application, in one aspect, a drill pipe holding tool is provided, such as Figures 1 to 4As shown, it includes two blocks 2, a rotating body 3, and a pressure plate 1. The two blocks 2 can move closer to or further away from each other, and each block 2 is provided with at least two grooves 21. Each groove 21 on each block 2 is provided with an opening. For the grooves 21 on the two blocks 2, the openings of the two grooves are arranged opposite each other, that is, the sides of the grooves 21 on the two blocks 2 that are close to each other are respectively provided with openings.

[0022] Each groove 21 is provided with a rotating body 3, which is rotatably connected to the groove 21, so that the rotating body 3 can rotate in the groove 21. Each rotating body 3 is provided with a pressure plate 1, and part of the pressure plate 1 extends out of the opening.

[0023] When it is necessary to tighten the drill rod, place the drill rod between two blocks 2, and then bring the two blocks 2 closer together until the pressure plates 1 on the rotating bodies 3 in the grooves 21 of each block 2 are in contact with the drill rod. For each block 2, the pressure plates 1 on the two rotating bodies 3 respectively are in contact with the drill rod, forming a V angle between the two pressure plates 1, thereby tightening one side of the drill rod. Similarly, the two pressure plates 1 on the other block 2 tighten the other side of the drill rod, thus tightening the drill rod.

[0024] For drill rods of different diameters, since the rotating body 3 can rotate in the groove 21, after the pressure plate 1 on the rotating body 3 in each groove 21 of each block 2 comes into contact with the drill rod, as the two blocks 2 continue to approach each other, the rotating body 3 rotates in the groove 21 so that the pressure plate 1 can fit against the drill rod and hold the drill rod tightly.

[0025] With this configuration, the drill rod clamping tool in this embodiment can clamp the drill rod regardless of its diameter, without the need to replace the pressure plate 1, making operation more convenient.

[0026] The pressure plate 1 has an anti-slip part on the side that abuts against the drill rod, which increases the friction between the pressure plate 1 and the drill rod. The anti-slip part can be teeth provided on the pressure plate 1.

[0027] like Figure 5 As shown, when clamping the drill rod of the first outer diameter, the two blocks 2 approach each other, and the pressure plate 1 on the rotating body 3 in each groove 21 of each block 2 fits and abuts against the drill rod, thus clamping the drill rod. Figure 6 As shown, when clamping the drill rod of the second outer diameter, the two blocks 2 approach each other. After the pressure plate 1 on the rotating body 3 in each groove 21 of each block 2 begins to abut against the drill rod, as the two blocks 2 continue to approach each other, the rotating body 3 and the pressure plate 1 rotate so that the pressure plate 1 fits against the drill rod, thereby clamping the drill rod of the second outer diameter.

[0028] In one embodiment, such as Figure 1As shown, the drill pipe clamping tool further comprises a limiting block 4, and each rotating body 3 is connected with a limiting block 4. The inner wall of each groove 21 is provided with a limiting groove 211. When the rotating body 3 is rotatably connected in the groove 21, the limiting block 4 is inserted in the limiting groove 211. At this time, the two opposite side walls of the limiting groove 211 are located on both sides of the limiting block 4 in the rotating direction of the rotating body 3. Therefore, when the limiting block 4 abuts against the side wall of the limiting groove 211 during the rotation of the rotating body 3, the rotating body 3 cannot continue to rotate, thereby limiting the rotation of the rotating body 3 between the first position and the second position. That is, when the limiting block 4 abuts against one side wall of the limiting groove 211, the rotating body 3 is located at the first position, and when the limiting block 4 abuts against the other side wall of the limiting groove 211, the rotating body 3 is located at the second position.

[0029] In this way, it is ensured that the pressing plate 1 can only rotate between the specified angles when following the rotation of the rotating body 3, that is, it will only deviate from the specified distance in the direction close to the drill pipe, thereby avoiding that the pressing plate 1 deviates too much in the direction close to the drill pipe, which causes the pressing plate 1 to be unable to abut against the drill pipe.

[0030] In an embodiment, as shown in the drawings, Figure 1 The drill pipe clamping tool further comprises a cover plate 5. A countersunk groove 22 is arranged on the block 2. The groove 21 is clamped in the groove bottom of the countersunk groove 22, so that the countersunk groove 22 communicates with the groove 21. The cover plate 5 is rotatably arranged in the countersunk groove 22, and the cover plate 5 is connected with the rotating body 3, so that when the rotating body 3 rotates, the cover plate 5 can rotate in the countersunk groove 22.

[0031] In this way, the cover plate 5 can cover the groove 21, avoiding dust from entering the groove 21 and being located between the rotating body 3 and the inner wall of the groove 21, which causes the rotation between the rotating body 3 and the groove 21 to be interfered.

[0032] In an embodiment, as shown in the drawings, Figure 3 The drill pipe clamping tool further comprises a frame 6, a first driving member 7 and a second driving member 8. The frame 6 is provided with a receiving groove 61 for accommodating the drill pipe, so that the drill pipe is arranged in the receiving groove 61. The frame 6 is provided with a first sliding groove 23 and a second sliding groove 23, and the first sliding groove 23 and the second sliding groove 23 have the same extension direction, that is, the first sliding groove 23 and the second sliding groove 23 are arranged in the same direction.

[0033] The first sliding groove 23 and the second sliding groove 23 are respectively arranged at two sides of the accommodating groove 61, and the first sliding groove 23 and the second sliding groove 23 respectively penetrate the accommodating groove 61 and communicate with the accommodating groove 61. For the two blocks 2, one of the blocks 2 is slidably inserted into the first sliding groove 23, so that the block 2 can slide along the first sliding groove 23 to approach or move away from the second sliding groove 23. The other block 2 is slidably inserted into the second sliding groove 23, so that the block 2 can slide along the second sliding groove 23 to approach or move away from the first sliding groove 23. When the drill rod is penetrated into the accommodating groove 61, the two blocks 2 are slid to approach each other, and the clamping plates 1 arranged respectively can clamp the drill rod.

[0034] The first driving member 7 is arranged on the frame 6, and the block 2 connected with the first sliding groove 23 is connected with the first driving member 7, so that the first driving member 7 can drive the block 2 connected with the first sliding groove 23 to slide to approach the other block 2. The second driving member 8 is arranged on the frame 6, and the block 2 connected with the second sliding groove 23 is connected with the second driving member 8, so that the second driving member 8 can drive the block 2 connected with the second sliding groove 23 to slide to approach the other block 2.

[0035] In this way, when it is needed to clamp the drill rod, the drill rod is penetrated into the accommodating groove 61, so that the part to be clamped on the drill rod is located in the accommodating groove 61 and between the two blocks 2. Then the first driving member 7 is used to drive the block 2 connected with the first sliding groove 23 to slide to approach the other block 2, and the second driving member 8 is used to drive the block 2 connected with the second sliding groove 23 to slide to approach the other block 2. Thus the two blocks 2 are slid to approach each other, and are respectively slid to approach the part to be clamped on the drill rod, until the clamping plates 1 on the two blocks 2 respectively clamp two sides of the part to be clamped on the drill rod, so as to clamp the part to be clamped on the drill rod.

[0036] According to the embodiment of the present application, in another aspect, a drill rod unhooking device is also provided, as shown in Figure 7 and Figure 8 The first clamping tool 9 and the second clamping tool 10 are respectively arranged as any of the drill rod clamping tools. The driving assembly 11 is connected with the first clamping tool 9, so that the driving assembly 11 can drive the first clamping tool 9 to rotate.

[0037] The first clamping tool 9 and the second clamping tool 10 are aligned vertically. During drill rod uncoupling, the drill rod is sequentially inserted between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10. Then, the first clamping tool 9 is moved along the drill rod so that the drill rod coupling is located between the two blocks 2 of the first clamping tool 9. Next, the second clamping tool 10 is moved along the drill rod so that the drill rod body is located between the two blocks 2 of the second clamping tool 10. The two blocks 2 of the first clamping tool 9 are brought closer together so that the pressure plates 1 on the two blocks 2 clamp the drill rod coupling. Similarly, the two blocks 2 of the second clamping tool 10 are brought closer together so that the pressure plates 1 on the two blocks 2 clamp the drill rod body. Afterward, the second clamping tool 10 is fixed, and the drive assembly 11 drives the first clamping tool 9 to rotate around the axis of the drill rod. This causes the drill rod coupling to rotate relative to the rod body, thus separating the drill rod coupling and the rod body, completing the drill rod uncoupling.

[0038] Since the pressure plates 1 on the blocks 2 of the first clamping tool 9 or the second clamping tool 10 can rotate relative to the blocks 2 along with the rotating body 3, after the pressure plates 1 on each block 2 abut against the coupling or rod, as the two blocks 2 continue to approach each other, the rotating body 3 rotates in the groove 21, so that the pressure plates 1 can fit against the coupling or rod, thereby clamping the coupling or rod. That is, regardless of the diameter of the drill rod, the first clamping tool 9 of the drill rod uncoupling tool in this embodiment can clamp the coupling of the drill rod, and the second clamping tool 10 of the drill rod uncoupling tool can clamp the rod body of the drill rod, without the need to replace the pressure plates 1, making the operation more convenient.

[0039] In one embodiment, such as Figure 9 As shown, the drill pipe uncoupling device also includes a bracket 12, a second clamping tool 10 fixedly connected to the bracket 12, and a first clamping tool 9 rotatably connected to the bracket 12, allowing the first clamping tool 9 to rotate relative to the bracket 12. A drive assembly 11 is connected to the bracket 12 and to the first clamping tool 9, enabling the first clamping tool 9 to rotate.

[0040] With this setup, when uncoupling the drill pipe, the drill pipe is sequentially inserted between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10. Then, the bracket 12 is moved along the drill pipe, so that the drill pipe coupling is located between the two blocks 2 of the first clamping tool 9, and simultaneously, the drill pipe body is located between the two blocks 2 of the second clamping tool 10. The two blocks 2 of the first clamping tool 9 are brought closer together, so that the pressure plates 1 on the two blocks 2 grip the drill pipe coupling; similarly, the two blocks 2 of the second clamping tool 10 are brought closer together, so that the pressure plates 1 on the two blocks 2 grip the drill pipe body.

[0041] Since the second clamping tool 10 is fixedly connected to the bracket 12, the first clamping tool 9 is driven to rotate by the drive assembly 11. The first clamping tool 9 rotates relative to the bracket 12 and the second clamping tool 10, thereby enabling the coupling to rotate relative to the rod body, so as to rotate and separate the coupling and the rod body of the drill rod, and complete the drill rod uncoupling.

[0042] With this configuration, when moving the first clamping tool 9 and the second clamping tool 10 to the clamping point of the drill rod, only the bracket 12 needs to be moved to move the first clamping tool 9 and the second clamping tool 10 simultaneously, making the operation more convenient.

[0043] Moreover, when unhooking, there is no need to fix the second clamping tool 10 separately; the first clamping tool 9 can be rotated simply by using the drive assembly 11, making the operation more convenient.

[0044] In one embodiment, such as Figure 9 As shown, the drive assembly 11 includes a first telescopic rod 111 and a second telescopic rod 112. The first telescopic rod 111 has a telescopic end and a fixed end, and its telescopic end is capable of telescopic extension and retraction relative to the fixed end. The first clamping tool 9 has a first side and a second side disposed opposite to each other. The telescopic end of the first telescopic rod 111 is hinged to the first side of the first clamping tool 9, and the fixed end of the first telescopic rod 111 is hinged to the bracket 12. The telescopic end of the second telescopic rod 112 is hinged to the second side of the first clamping tool 9, and the fixed end of the second telescopic rod 112 is hinged to the bracket 12.

[0045] In this way, by extending the telescopic end of one of the first telescopic rod 111 and the second telescopic rod 112 and retracting the telescopic end of the other, the first clamping tool 9 can be driven to rotate.

[0046] Specifically, during the uncoupling of the drill pipe, the drill pipe is sequentially inserted between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10. Then, the bracket 12 is moved along the drill pipe so that the drill pipe coupling is located between the two blocks 2 of the first clamping tool 9, and simultaneously the drill pipe body is located between the two blocks 2 of the second clamping tool 10. The two blocks 2 of the second clamping tool 10 are brought closer together so that the pressure plates 1 on the two blocks 2 clamp the drill pipe body.

[0047] Then, the two blocks 2 of the first clamping tool 9 are brought close together, so that the pressure plates 1 on the two blocks 2 clamp the drill rod coupling. Then, the telescopic end of the first telescopic rod 111 is extended and the telescopic end of the second telescopic rod 112 is retracted to drive the first clamping tool 9 to rotate, thereby loosening the drill rod coupling and the rod body.

[0048] Then the two blocks 2 of the first clamping tool 9 are moved away from each other, the telescopic end of the first telescopic rod 111 is retracted, the telescopic end of the second telescopic rod 112 is extended, and then the two blocks 2 of the first clamping tool 9 are moved close to each other, so that the two clamping plates 1 on the two blocks 2 tightly embrace the coupling of the drill rod. The telescopic end of the first telescopic rod 111 is continuously extended, and the telescopic end of the second telescopic rod 112 is continuously retracted, so as to continuously unscrew the coupling and the rod body of the drill rod. The operation is repeated until the coupling and the rod body of the drill rod are separated, and the drill rod is unbuckled.

[0049] In this way, the operation is more convenient when unbuckling.

[0050] The first telescopic rod 111 and the second telescopic rod 112 can be hydraulic push rods, electric push rods or electro-hydraulic push rods.

[0051] In an embodiment, the drill rod unbuckling device further comprises a lifting assembly 13 connected with the support 12, and the lifting assembly 13 is used to drive the support 12 to lift. When the drill rod is arranged between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10, the lifting assembly 13 is used to drive the support 12 to move along the drill rod, so that the first clamping tool 9 and the second clamping tool 10 move along the drill rod.

[0052] Specifically, the lifting assembly 13 comprises a lifting oil cylinder, and the movable end of the lifting oil cylinder is connected with the support 12. The lifting oil cylinder is used to drive the support 12 to lift.

[0053] In an embodiment, as shown in Figure 9 The drill rod unbuckling device further comprises a position detection element 14 and a control module. The position detection element 14 is used to detect the position to be embraced by the drill rod, that is, the position of the coupling of the drill rod and the position of the rod body close to the coupling.

[0054] The control module is in communication connection with the position detection element 14 and the lifting assembly 13. The control module is used to control the lifting assembly 13 to drive the support 12 to move to the position to be embraced by the drill rod according to the position to be embraced by the drill rod detected by the position detection element 14.

[0055] In this way, when the drill rod is unbuckled, the drill rod is arranged between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10 in sequence. Then the position detection element 14 can detect the position of the coupling and the position of the rod body close to the coupling. The control module controls the lifting assembly 13 to drive the support 12 to lift according to the position signal from the position detection element 14, so that the coupling is located between the two blocks 2 of the first clamping tool 9, and the part of the rod body close to the coupling is located between the two blocks 2 of the second clamping tool 10. It is not necessary to manually determine the position of the coupling of the drill rod and the position of the rod body close to the coupling, and it is not necessary to manually drive the support 12 to lift. The operation is more convenient.

[0056] The position detection element 14 can be a graphic sensor or a smart camera to perform image recognition on the drill rod to determine the position of the drill rod coupling and the position of the rod body near the coupling.

[0057] The control module can be a central processing unit or a programmable controller.

[0058] In one embodiment, such as Figure 9 As shown, the drill pipe uncoupling device also includes a support arm 15 and a rotating device 16. The support arm 15 is connected to the rotating device 16, enabling the rotating device 16 to drive the support arm 15 to rotate around the rotation center of the rotating device 16. The bracket 12 is connected to the support arm 15, so that when the support arm 15 rotates around the rotation center of the rotating device 16, it drives the bracket 12 to rotate around the rotation center of the rotating device 16.

[0059] With this configuration, when uncoupling the drill pipe, the rotary device 16 is positioned beside the drill pipe, so that the distance from the support 12 to the rotation center of the rotary device 16 is the same as the distance from the drill pipe to the rotation center of the rotary device 16. Then, the rotary device 16 is used to drive the support arm 15 to rotate around the rotation center of the rotary device 16, thereby driving the support 12 to rotate around the rotation center of the rotary device 16 until the drill pipe passes between the two blocks 2 of the first clamping tool 9 and the two blocks 2 of the second clamping tool 10.

[0060] The slewing device 16 can be a slewing reducer.

[0061] In one embodiment, such as Figure 9 As shown, the support arm 15 includes a swing arm and a detachable arm. The swing arm is connected to the rotary device 16, enabling the rotary device 16 to drive the swing arm to rotate around the rotation center of the rotary device 16. The detachable arm is connected to the bracket 12, and the detachable arm is detachably connected to the swing arm.

[0062] In one embodiment, such as Figure 9 As shown, the drill pipe uncoupling device also includes a mounting base 17, and a rotating device 16 is connected to the mounting base 17.

[0063] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A pipe gripping tool, characterized in that, The device comprises: two blocks (2) capable of moving towards or away from each other, at least two grooves (21) being arranged on the blocks (2), and the grooves (21) on the two blocks (2) being arranged with openings on the side moving towards each other; a rotating body (3) rotatably connected in each groove (21); a pressing plate (1) arranged on each rotating body (3) and partially extending out of the opening.

2. A pipe gripping tool according to claim 1, characterised in that Further comprising: a limiting block (4) connected to each rotating body (3), a limiting groove (211) being arranged on the inner wall of each groove (21), and the limiting block (4) being inserted into the limiting groove (211) to limit the rotation of the rotating body (3) between the first position and the second position.

3. The pipe gripping tool of claim 1, wherein, Further comprising: a cover plate (5) rotatably arranged in a counter-sunk groove (22) on the block (2) and connected with the rotating body (3).

4. A pipe gripping tool according to any one of claims 1-3, characterised in that Further comprising: a frame body (6) provided with a receiving groove (61) for accommodating a drill rod, the frame body (6) being provided with a first sliding groove (23) and a second sliding groove (23) in the same direction, the first sliding groove (23) and the second sliding groove (23) being respectively located on both sides of the receiving groove (61) and being respectively communicated with the receiving groove (61), one block (2) being slidably connected with the first sliding groove (23), and the other block (2) being slidably connected with the second sliding groove (23); a first driving member (7) arranged on the frame body (6) and connected with the block (2) connected with the first sliding groove (23), the first driving member (7) being adapted to drive the block (2) connected with the first sliding groove (23) to slide towards the other block (2); a second driving member (8) arranged on the frame body (6) and connected with the block (2) connected with the second sliding groove (23), the second driving member (8) being adapted to drive the block (2) connected with the second sliding groove (23) to slide towards the other block (2).

5. A drill pipe make-up and break-out device, characterized by The device comprises: a first clamping tool (9) arranged as the drill rod clamping tool of any one of claims 1-4; a second clamping tool (10) arranged as the drill rod clamping tool of any one of claims 1-4, the first clamping tool (9) being aligned with the second clamping tool (10) in up-down direction; a driving assembly (11) connected with the first clamping tool (9), the driving assembly (11) being adapted to drive the first clamping tool (9) to rotate.

6. The drill pipe make-up and break-out device of claim 5, wherein, Further comprising: a support (12), the second clamping tool (10) being fixedly connected with the support (12), and the first clamping tool (9) being rotatably connected with the support (12), the driving assembly (11) being connected with the support (12).

7. The drill pipe make-up and break-out device of claim 6, wherein, The driving assembly (11) comprises: A first telescopic rod (111) is hinged at a telescopic end to a first side of the first clamping tool (9) and hinged at a fixed end to the support (12); A second telescopic rod (112) is hinged at a telescopic end to a second side of the first clamping tool (9) and hinged at a fixed end to the support (12), the first side and the second side of the first clamping tool (9) being oppositely arranged.

8. The drill pipe make-up and break-out apparatus of claim 6, wherein, Further comprising: A lifting assembly (13) connected to the support (12), the lifting assembly (13) being adapted to drive the support (12) to move along the drill pipe.

9. The drill pipe make-up and break-out device of claim 8, wherein, Further comprising: A position detecting element (14) adapted to detect a position to be gripped of the drill pipe; A control module communicatively connected to the position detecting element (14) and the lifting assembly (13), respectively, the control module being adapted to control the lifting assembly (13) to drive the support (12) to move to the position to be gripped according to the position to be gripped.

10. A drill pipe make-up and break-out device according to any one of claims 6 to 9, wherein, Further comprising: A support arm (15) connected to the support (12); A rotating device (16) connected to the support arm (15), the rotating device (16) being adapted to drive the support arm (15) to rotate around a rotating center of the rotating device (16).

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