A pipe string grabbing and transporting device for oil drilling

Abstract

The utility model relates to petroleum and natural gas drilling technical field especially relates to a pipe column is grabbed and is transported device for petroleum drilling. Pipe column is grabbed and is transported device includes frame body, moving mechanism, receiving mechanism and grabbing mechanism, and frame body sets up in moving mechanism, and moving mechanism can drive frame body and reciprocates linearly between pipe stack and drilling platform surface, and grabbing mechanism and receiving mechanism all set up in frame body, and grabbing mechanism moves along the vertical direction and grabs the pipe column in pipe stack to place in receiving mechanism, and receiving mechanism and frame body slide connection, and receiving mechanism reciprocates along the moving direction of moving mechanism to receive the pipe column that grabbing mechanism grabbed, need not manual participation and grab, posture adjustment and butt joint etc. operation, reduce the labor cost, promote the operation stability. Through low altitude grabbing and horizontal movement, realize the transportation between pipe column in pipe stack and drilling platform surface, avoid frequent high altitude hoisting, reduce the pipe column collision risk, and mechanized operation reduces artificial error.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas drilling technology, and in particular to a pipe string grabbing and transporting device for oil drilling. Background Technology

[0002] Currently, with the increasing automation of oil drilling platform operations, highly automated wellhead oil equipment is being used more and more widely. Among these, the catwalk is an indispensable piece of equipment for transporting tubing between the drill table and the surface, and its level of automation directly affects drilling efficiency and safety. While traditional catwalk systems can perform the basic function of transporting tubing (drill pipe, casing, etc.), they still rely on cranes or hoists for lifting and positioning the tubing. Manual assistance is required for tasks such as tubing gripping, attitude adjustment, and catwalk docking, resulting in low tubing transport efficiency and collision damage to the tubing due to frequent high-altitude lifting operations. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a tubing gripping and transporting device for oil drilling, which solves the technical problem of low tubing conveying efficiency.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] This utility model provides a pipe string grabbing and transporting device for oil drilling, including a frame, a moving mechanism, a receiving mechanism, and a grabbing mechanism. The frame is mounted on the moving mechanism, which can drive the frame to move linearly back and forth between the pipe stack and the drill platform. The grabbing mechanism and the receiving mechanism are both mounted on the frame. The grabbing mechanism can move vertically to grab the pipe string in the pipe stack and place it on the receiving mechanism. The receiving mechanism is slidably connected to the frame and moves back and forth along the moving direction of the moving mechanism to receive the pipe string grabbed by the grabbing mechanism.

[0008] Preferably, the gripping mechanism includes a connecting frame, a lifting assembly, and a gripping assembly; the lifting assembly is mounted on the frame via the connecting frame; the lifting assembly includes a first driving member, a guide rail, and a slider, the slider is mounted on the connecting frame and slidably connected to the guide rail, and the gripping assembly is mounted at the end of the guide rail; the guide rail extends vertically, and the first driving member drives the guide rail to slide vertically along the slider to move the gripping assembly up and down.

[0009] Preferably, the first driving component includes a rack, a gear, and a motor; the rack is disposed on the guide rail and arranged along the extension direction of the guide rail; the fixed end of the motor is disposed on the slider, and the output end of the motor is connected to the gear to drive the gear to rotate, and the gear meshes with the rack; the rotation of the gear drives the rack on the guide rail to move up and down so that the gripping component at the end of the guide rail moves up and down.

[0010] Preferably, the lifting assembly further includes multiple guide structures; the guide rail is provided with multiple guide prisms, which extend in the vertical direction; the guide structures are disposed on the slider, and the guide structures and guide prisms are provided in a one-to-one correspondence; the guide structures are provided with guide grooves so that the guide prisms are embedded in the guide grooves and slide.

[0011] Preferably, the guide structure includes a guide seat and a guide wheel; the guide seat is disposed at the top of the slider, and the two ends of the guide wheel are rotatably connected to the guide seat; a guide groove is provided in the middle of the guide wheel, and the guide groove is V-shaped.

[0012] Preferably, the gripping assembly includes a connecting plate, two magnetic suction units, and two gripping units; the connecting plate is vertically disposed at the end of the guide rail, and the two magnetic suction units and two gripping units are disposed on the connecting plate; the two magnetic suction units are respectively disposed on both sides of the connecting plate for magnetically suctioning the tube column along the axial direction of the tube column; the two gripping units are respectively disposed on both sides of the connecting plate for clamping the magnetically suctioned tube column.

[0013] Preferably, the magnetic suction unit includes a telescopic member and a magnetic gripper. The fixed end of the telescopic member is disposed on the connecting plate, and the telescopic end of the telescopic member is connected to the magnetic gripper. The gripping unit includes a second driving member and two clamping arms. The second driving member drives the two clamping arms to open and close to clamp the column on the magnetic gripper.

[0014] Preferably, the connecting frame is provided with clearance holes to accommodate the top of the gripping component.

[0015] Preferably, the receiving mechanism includes a movable frame and a receiving structure, with the receiving structure disposed on the movable frame; the movable frame is slidably connected to the frame body; and the receiving structure is used to receive the pipe column grasped by the gripping mechanism.

[0016] Preferably, the moving mechanism includes two parallel tracks and a set of moving wheels at the bottom of the frame; the tracks extend along the moving direction, and the moving wheels at both ends of the frame are slidably connected to the two tracks respectively.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this utility model are:

[0019] This utility model discloses a tubing string grabbing and transporting device for oil drilling, comprising a frame, a moving mechanism, a receiving mechanism, and a grabbing mechanism. The frame is mounted on the moving mechanism, which drives the frame to move linearly back and forth between the tubing stack and the drill platform, thereby enabling the transport of the tubing string between the tubing stack and the drill platform. Both the grabbing mechanism and the receiving mechanism are mounted on the frame. The grabbing mechanism moves vertically to grab the tubing string from the tubing stack and place it on the receiving mechanism. The receiving mechanism is slidably connected to the frame and moves back and forth along the moving mechanism to receive the tubing string grabbed by the grabbing mechanism. No manual intervention is required for grabbing, attitude adjustment, or docking operations, reducing labor costs and improving operational stability. Through low-altitude grabbing and horizontal movement, the transport of the tubing string from the tubing stack to the drill platform is achieved, avoiding frequent high-altitude hoisting, reducing the risk of tubing string collisions, and mechanized operation reduces human error, further reducing the probability of tubing string damage, while ensuring the safety of operators. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the oil drilling tubing gripping and transport device of this utility model (gripping mechanism gripping tubing);

[0021] Figure 2 This is a schematic diagram of the structure of the oil drilling tubing gripping and transport device of this utility model (the receiving mechanism receives the tubing);

[0022] Figure 3 This is a schematic diagram of the gripping mechanism (connecting frame not shown);

[0023] Figure 4 A schematic diagram of the structure for the cooperation of the guide structure and the guide prism;

[0024] Figure 5 To capture a longitudinal sectional view of a component.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1: Moving mechanism; 11: Track; 12: Moving wheels;

[0027] 2: Frame;

[0028] 3: Supporting mechanism; 31: Moving frame; 32: Supporting structure;

[0029] 4: Gripping mechanism; 41: Connecting frame; 411: Clearance hole; 42: Lifting assembly; 421: First driving component; 4211: Rack; 4212: Motor; 422: Guide rail; 4221: Guide prism; 423: Slider; 424: Guide structure; 4241: Guide seat; 4242: Guide wheel; 43: Gripping assembly; 431: Connecting plate; 432: Magnetic suction unit; 4321: Telescopic component; 4322: Magnetic gripper; 433: Gripping unit; 4331: Second driving component; 4332: Clamping arm; 4333: Driving arm;

[0030] 5: Tubing column. Detailed Implementation

[0031] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1 As shown, this utility model embodiment provides a pipe string grabbing and transporting device for oil drilling. The device includes a moving mechanism 1, a frame 2, a receiving mechanism 3, and a grabbing mechanism 4. The frame 2 is mounted on the moving mechanism 1, which drives the frame 2 to move linearly back and forth between the pipe stack and the drill platform. Both the grabbing mechanism 4 and the receiving mechanism 3 are mounted on the frame 2. The grabbing mechanism 4 can move vertically to grab the pipe string 5 from the pipe stack and place it on the receiving mechanism 3. The receiving mechanism 3 is slidably connected to the frame 2 and moves back and forth along the moving direction of the moving mechanism 1 to receive the pipe string 5 grabbed by the grabbing mechanism 4. This eliminates the need for manual intervention in grabbing, posture adjustment, and docking operations, reducing labor costs and improving operational stability. By grabbing at low altitude and moving horizontally, the device achieves the transport of the pipe string 5 from the pipe stack to the drill platform, avoiding frequent high-altitude hoisting, reducing the risk of pipe string 5 collisions, and reducing human error through mechanized operation, further reducing the probability of pipe string 5 damage, while ensuring the safety of operators.

[0033] In this embodiment, the axial direction of the tube column 5 in the tube stack is perpendicular to the moving direction of the moving mechanism 1. For example... Figure 1 and Figure 2 As shown, the moving mechanism 1 includes a drive assembly, two tracks 11, and moving wheels 12 located at the bottom of the frame 2. The two tracks 11 are spaced apart and parallel, extending along the moving direction of the moving mechanism 1. The moving wheels 12 at both ends of the frame 2 are slidably connected to the two tracks 11 respectively. The drive assembly drives the moving wheels 12 at the bottom of the frame 2 to reciprocate on the tracks 11. The cooperation between the double tracks 11 and the moving wheels 12 provides stable support, reduces swaying during operation, and ensures the safe transport of the tubular column 5. The moving wheels 12 utilize rolling friction for movement, reducing energy consumption and maintenance requirements, making them suitable for long-term continuous operation.

[0034] like Figure 2 As shown, the receiving mechanism 3 includes a movable frame 31 and a receiving structure 32. The receiving structure 32 is disposed on the movable frame 31. The movable frame 31 is slidably connected to the frame 2 in the direction of movement. The receiving structure 32 is used to receive the column 5 grasped by the gripping mechanism 4.

[0035] like Figure 2 and Figure 3 As shown, the gripping mechanism 4 includes a connecting frame 41, a lifting assembly 42, and a gripping assembly 43. The lifting assembly 42 is mounted on the frame 2 via the connecting frame 41. Figure 3 As shown, the lifting assembly 42 includes a first driving member 421, a guide rail 422, and a slider 423. The slider 423 is mounted on the connecting frame 41 and is slidably connected to the guide rail 422. The gripping assembly 43 is located at the end of the guide rail 422, which extends vertically. The first driving member 421 drives the guide rail 422 to slide along the vertical direction of the slider 423, thereby causing the gripping assembly 43 to move up and down. Through the sliding cooperation between the guide rail 422 and the slider 423, the stable vertical movement of the gripping assembly 43 is achieved, improving the gripping accuracy of the column 5.

[0036] Because the tube columns 5 are stacked haphazardly in the tube stack, and there are height differences among the tube columns 5, in order to improve the accuracy of the lifting and lowering of the gripping component 43, the first driving component 421 includes a rack 4211, a gear (not shown), and a motor 4212. The rack 4211 is mounted on the guide rail 422 and arranged along the extension direction of the guide rail 422. The fixed end of the motor 4212 is mounted on the slider 423, and the output end of the motor 4212 is connected to the gear to drive the gear to rotate. The gear meshes with the rack 4211, and the rotation of the gear drives the rack 4211 on the guide rail 422 to move up and down, thereby causing the gripping component 43 at the end of the guide rail 422 to move up and down. The rack 4211 gear transmission structure has high transmission efficiency and can directly convert the power of the motor 4212 into linear motion, making it suitable for operation scenarios with frequent start-stop cycles.

[0037] Because the lifting assembly 42 has a stroke of over 5m, resulting in a long travel distance, to ensure greater stability of the guide rail 422 during lifting and preventing swaying, the lifting assembly 42 also includes multiple guide structures 424. The guide rail 422 is correspondingly provided with multiple guide prisms 4221, which extend vertically. The guide structures 424 are mounted on the slider 423, and each guide structure 424 corresponds one-to-one with a guide prism 4221. The guide structures 424 have guide grooves to allow the guide prisms 4221 to slide within them. The cooperation between the guide prisms 4221 and the guide grooves restricts the lateral displacement of the guide rail 422, making the lifting process smoother and reducing the risk of jamming. Furthermore, the multiple guide structures 424 evenly distribute the load, extending the service life of the guide rail 422 and the slider 423.

[0038] like Figure 4As shown, the guide structure 424 includes a guide seat 4241 and a guide wheel 4242. The guide seat 4241 is located at the top of the slider 423. The two ends of the guide wheel 4242 are rotatably connected to the guide seat 4241. A guide groove is provided in the middle of the guide wheel 4242, which converts sliding friction into rolling friction, reducing energy consumption and wear, and improving the service life of the lifting assembly 42. The guide groove is V-shaped, which automatically guides the guide prism 4221 into the groove, simplifying the installation process.

[0039] like Figure 3 and Figure 5 As shown, the gripping assembly 43 includes a connecting plate 431, two magnetic suction units 432, and two gripping units 433. The connecting plate 431 extends along the axial direction of the tube column 5 and is vertically disposed at the end of the guide rail 422. The two magnetic suction units 432 and the two gripping units 433 are all disposed on the connecting plate 431. The two magnetic suction units 432 are respectively disposed on both sides of the connecting plate 431 and are used to magnetically suction the tube column 5 along its axial direction. The two gripping units 433 are respectively disposed on both sides of the connecting plate 431 and are used to clamp the magnetically suctioned tube column 5. The magnetic suction units 432 first magnetically suction and position the tube column 5 along its axial direction, and then the gripping units 433 clamp it, improving the gripping success rate, especially suitable for tube columns 5 with different stacking heights in a tube stack. The symmetrical arrangement of the magnetic suction and gripping units 433 on both sides balances the force on the tube column 5 and prevents it from tilting or falling.

[0040] like Figure 5 As shown, the magnetic suction unit 432 includes a telescopic member 4321 and a magnetic suction claw 4322. The fixed end of the telescopic member 4321 is disposed on the connecting plate 431, and the telescopic end of the telescopic member 4321 is connected to the magnetic suction claw 4322. The telescopic member 4321 allows the magnetic suction claw 4322 to adapt to the position of the tube column 5, avoiding rigid collisions that could damage the surface of the tube column 5.

[0041] like Figure 5 As shown, the gripping unit 433 includes a second driving member 4331, two gripping arms 4332, and two driving arms 4333. The first ends of the two driving arms 4333 are hinged to the second driving member 4331, and the second ends of the two driving arms 4333 are respectively hinged to the first ends of the two gripping arms 4332. The second ends of the gripping arms 4332 are hinged to the interior of the connecting plate 431. The moving end of the second driving member 4331 drives the two driving arms 4333 to move simultaneously, thereby driving the first ends of the gripping arms 4332 to rotate around their second ends, so that the distal ends of the two gripping arms 4332 open and close to grip the column 5 on the magnetic gripper 4322. Both the telescopic member 4321 and the second driving member 4331 are hydraulic telescopic members.

[0042] like Figure 2As shown, in order to avoid interference between the gripping component 43 and the connecting frame 41 when the gripping component 43 rises, the connecting frame 41 is provided with a clearance hole 411 to accommodate the top of the gripping component 43. At the same time, it shortens the overall height of the mechanism and effectively prevents malfunctions caused by component collisions, thus extending the service life of the equipment.

[0043] In this embodiment, the moving mechanism 1 moves the frame 2 to the pipe stack. The lifting component 42 in the gripping mechanism 4 moves the gripping component 43 down to grip the pipe column 5. After gripping the pipe column 5, the lifting component 42 moves the gripping component 43 up. At this time, the moving frame 31 of the receiving mechanism 3 moves horizontally to below the gripping component 43. The moving component moves the gripping component 43 down. The gripping component 43 opens and places the pipe column 5 on the receiving structure 32. The lifting component 42 moves the gripping component 43 up to avoid it. The moving frame 31 of the receiving mechanism 3 retracts horizontally and places the pipe column 5 in the second position for subsequent operations. Finally, the moving mechanism 1 moves the frame 2 to the vicinity of the drilling platform for subsequent transfer of the pipe column 5.

[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0046] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A tubing string gripping and transport device for oil drilling, characterized in that, It includes a frame (2), a moving mechanism (1), a receiving mechanism (3), and a gripping mechanism (4); The frame (2) is mounted on the moving mechanism (1), and the moving mechanism (1) can drive the frame (2) to move linearly back and forth between the pipe stack and the drilling platform. The gripping mechanism (4) and the receiving mechanism (3) are both mounted on the frame (2). The gripping mechanism (4) can move vertically to grip the pipe column (5) in the pipe stack and place it on the receiving mechanism (3). The receiving mechanism (3) is slidably connected to the frame (2), and the receiving mechanism (3) moves back and forth along the moving direction of the moving mechanism (1) to receive the column (5) grasped by the gripping mechanism (4).

2. The oil drilling tubing gripping and transport device as described in claim 1, characterized in that: The gripping mechanism (4) includes a connecting frame (41), a lifting assembly (42), and a gripping assembly (43); The lifting assembly (42) is mounted on the frame (2) via the connecting frame (41); The lifting assembly (42) includes a first driving member (421), a guide rail (422) and a slider (423). The slider (423) is disposed on the connecting frame (41) and is slidably connected to the guide rail (422). The gripping assembly (43) is disposed at the end of the guide rail (422). The guide rail (422) extends vertically, and the first driving member (421) drives the guide rail (422) to slide along the vertical direction of the slider (423) to drive the gripping component (43) to move up and down.

3. The oil drilling tubing gripping and transport device as described in claim 2, characterized in that: The first driving component (421) includes a rack (4211), a gear, and a motor (4212); The rack (4211) is disposed on the guide rail (422) and arranged along the extension direction of the guide rail (422); The fixed end of the motor (4212) is disposed on the slider (423), and the output end of the motor (4212) is connected to the gear to drive the gear to rotate. The gear meshes with the rack (4211). The rotation of the gear drives the rack (4211) on the guide rail (422) to move up and down, so that the gripping assembly (43) at the end of the guide rail (422) moves up and down.

4. The oil drilling tubing gripping and transport device as described in claim 2, characterized in that: The lifting assembly (42) also includes multiple guide structures (424); The guide rail (422) is provided with a plurality of guide prisms (4221), which extend in the vertical direction; The guide structure (424) is disposed on the slider (423), and the guide structure (424) and the guide prism (4221) are disposed in a one-to-one correspondence; The guide structure (424) is provided with a guide groove so that the guide prism (4221) can slide within the guide groove.

5. The oil drilling tubing gripping and transport device as described in claim 4, characterized in that: The guide structure (424) includes a guide seat (4241) and a guide wheel (4242); The guide seat (4241) is disposed at the top of the slider (423), and the two ends of the guide wheel (4242) are respectively rotatably connected to the guide seat (4241); The guide groove is provided in the middle of the guide wheel (4242), and the guide groove is V-shaped.

6. The oil drilling tubing gripping and transport device as described in claim 2, characterized in that: The gripping component (43) includes a connecting plate (431), two magnetic suction units (432), and two gripping units (433); The connecting plate (431) is vertically disposed at the end of the guide rail (422), and the two magnetic suction units (432) and the two gripping units (433) are all disposed on the connecting plate (431); The two magnetic attraction units (432) are respectively disposed on both sides of the connecting plate (431) for magnetic attraction of the tube column (5) along the axial direction of the tube column (5); The two gripping units (433) are respectively disposed on both sides of the connecting plate (431) for clamping the magnetically attracted tube column (5).

7. The oil drilling tubing gripping and transport device as described in claim 6, characterized in that: The magnetic suction unit (432) includes a telescopic member (4321) and a magnetic suction claw (4322). The fixed end of the telescopic member (4321) is disposed on the connecting plate (431), and the telescopic end of the telescopic member (4321) is connected to the magnetic suction claw (4322). The gripping unit (433) includes a second drive element (4331) and two gripping arms (4332); The second drive member (4331) drives the two clamping arms (4332) to open and close to clamp the column (5) on the magnetic claw (4322).

8. The oil drilling tubing gripping and transport device as described in claim 2, characterized in that: The connecting frame (41) is provided with a clearance hole (411) to accommodate the top end of the gripping component (43).

9. The oil drilling tubing gripping and transport device as described in claim 1, characterized in that: The receiving mechanism (3) includes a movable frame (31) and a receiving structure (32), wherein the receiving structure (32) is disposed on the movable frame (31); The movable frame (31) is slidably connected to the frame (2); The receiving structure (32) is used to receive the pipe column (5) grasped by the gripping mechanism (4).

10. The oil drilling tubing gripping and transport device as described in claim 1, characterized in that: The moving mechanism (1) includes two parallel tracks (11) and a moving wheel (12) located at the bottom of the frame (2); The track (11) extends along the direction of movement, and the moving wheels (12) at both ends of the frame (2) are slidably connected to the two tracks (11) respectively.

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