A top drive device for marine exploration

Abstract

The present invention provides a top drive device for marine exploration, which relates to the field of oil drilling technology, including a hanger, a clamp body assembly, a bell mouth, a piston and a clamp seat, wherein the clamp seat is provided with a clamp assembly for clamping a pipe column, and the clamp assembly includes: a fixed plate connected to the clamp seat; a first sliding frame, which is slidably arranged on the fixed plate and can move along the length direction of the fixed plate; a first rotating frame, which is rotatably connected to the first sliding frame so as to be able to rotate relative to the first sliding frame so that the first rotating frame contacts the pipe column to clamp the pipe column. The present invention allows the clamping force and position to be automatically adjusted according to the diameter of the pipe column during the clamping process through the coordinated use of the fixed plate, the first sliding frame and the first rotating frame, and automatically adapts to pipe columns of different diameters without the need for manual adjustment or replacement of components, thereby improving operating efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling, and in particular to a top drive device for ocean exploration. Background Art

[0002] In oil drilling operations, the drill pipe is currently made and broken out by hydraulic tongs on the drilling floor or the backup tongs of the top drive drilling device. Taking the backup tongs of the top drive drilling device as an example, the backup tongs can clamp the drill pipe and tighten or loosen the drill pipe (make and break out) by the forward and reverse rotation of the motor.

[0003] However, the clamping part of the existing back-up tong cannot be adjusted, so it is often necessary to replace the jaw plate, tooth seat, and jaw teeth of the power tong to clamp pipes of different diameters, which is too cumbersome. In addition, when clamping the pipe, the pipe tends to shake due to the vibration of drilling, and the clamping assembly is prone to form some clamp marks on the outer wall of the pipe. Summary of the invention

[0004] Based on this, it is necessary to provide a marine exploration top drive device to address the problems existing in the current marine exploration top drive device.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A top drive device for marine exploration comprises a hanger, a clamp body assembly, a bell mouth, a piston and a clamp seat, wherein the clamp seat is provided with a clamp assembly for clamping a pipe column, and the clamp assembly comprises:

[0007] A fixing plate connected to the clamp seat;

[0008] A first sliding frame, which is slidably disposed on the fixed plate and can move along the length direction of the fixed plate;

[0009] a first rotating frame, which is rotatably connected to the first sliding frame so as to be rotatable relative to the first sliding frame, so that the first rotating frame contacts the pipe column to clamp the pipe column;

[0010] The linkage assembly is disposed between the fixed plate and the first rotating frame, and is used to rotate the first rotating frame to drive the first sliding frame to move along the length direction of the fixed plate when the pipe column acts on the first rotating frame.

[0011] In one embodiment, the fixed plate is provided with a first slide groove, and the first slide frame is arranged in the first slide groove and can move along the length direction of the first slide groove;

[0012] The first sliding frame is provided with a T-shaped annular groove, the first rotating frame is provided with a T-shaped clamping block matched with the annular groove, and the first rotating frame can rotate in the first sliding frame and drive the first sliding frame to move.

[0013] In one embodiment, the linkage component includes:

[0014] A rack, which is arranged on the fixed plate;

[0015] The gear ring is arranged on the first rotating frame relatively and can be meshed with the corresponding rack, so that the first rotating frame moves along the fixed plate when rotating.

[0016] In one embodiment, the clamping assembly further comprises:

[0017] a second sliding frame, which is slidably disposed on the first rotating frame and is capable of moving along the length direction of the first rotating frame;

[0018] a second rotating frame, which is rotatably connected to the second sliding frame so as to be rotatable relative to the second sliding frame;

[0019] The linkage assembly is arranged between the second rotating frame and the first rotating frame, and is used for causing the second rotating frame to rotate to drive the second sliding frame to move along the length direction of the first rotating frame when the pipe column acts on the second rotating frame.

[0020] In one embodiment, the second turret comprises:

[0021] A rotating rod having a cavity;

[0022] A rack plate, one end of which extends into the cavity and is movable along the cavity;

[0023] A sliding plate, which is relatively arranged on the cavity wall of the cavity and can move along the cavity under the drive of the rack plate;

[0024] a gasket, one end of which is connected to the sliding plate;

[0025] A clamping shaft is resettably arranged on the edge of the rotating rod and connected to the other end of the gasket so that the rack plate moves when the pipe column acts on the rack plate. The movement of the rack plate drives the sliding plate to move in the opposite direction so that the clamping shaft can retract the gasket.

[0026] In one embodiment, the rotating rod comprises:

[0027] a transmission ring having a recess;

[0028] a hinge hole provided on the recessed portion for mounting the clamping shaft via a torsion spring;

[0029] The gear column is relatively arranged between the gear plate and the sliding plate, and is used to drive the gear plate to rotate when the gear plate moves, so that the sliding plate moves in the opposite direction.

[0030] In one embodiment, the gasket has a thickness gradient structure, and its thickness increases gradually along a direction approaching the sliding plate.

[0031] In one embodiment, the caliper assembly includes a first caliper body and a second caliper body disposed opposite to each other, and the first caliper body is connected to the hanger;

[0032] The first clamp body and the second clamp body are respectively provided with hydraulic chambers, and pistons are provided in the hydraulic chambers. The inner ends of the pistons are respectively connected to the clamp seats, and the two pistons can move toward or away from each other so that the clamping assembly clamps or releases the pipe column.

[0033] In one of the embodiments, four clamping assemblies are provided, and two clamping assemblies located on the same clamp seat form a group.

[0034] In one of the embodiments, the two transmission rings of the same clamping assembly have different diameters.

[0035] The beneficial effects of the present invention are:

[0036] The present invention allows the clamping force and position to be automatically adjusted according to the diameter of the pipe string during the clamping process through the coordinated use of the fixed plate, the first sliding frame and the first rotating frame, and automatically adapts to pipe strings of different diameters without manual adjustment or replacement of parts, thereby improving the operation efficiency. The hydraulically controlled piston provides precise force output, ensuring that the clamp seat and the clamping assembly can stably clamp the pipe string, integrating advanced hydraulic control and precision mechanical linkage technology, and further optimizing the top drive device for marine exploration.

[0037] The present invention can automatically adapt to pipes with different diameters through the coordinated use of the first rotating frame, the second sliding frame and the second rotating frame, and makes the second rotating frame relatively evenly distributed on the outer wall of the pipe column, thereby avoiding excessive concentration of the clamping positions.

[0038] The present invention also uses a linkage mechanism such as a gasket with gradually varying thickness and a rack plate, so that the gasket can be located between the outer wall of the pipe column and the clamping shaft when clamping the pipe column, providing a more uniform and stable clamping force and reducing the risk of clamping marks and damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is an isometric schematic diagram of a top drive device for ocean exploration according to an embodiment of the present invention;

[0040] Figure 2 It is a front view of a top drive device for ocean exploration according to an embodiment of the present invention;

[0041] Figure 3 for Figure 2 Sectional view along line AA;

[0042] Figure 4 It is a right side view of a top drive device for ocean exploration according to an embodiment of the present invention;

[0043] Figure 5 for Figure 4 Sectional view along the midline BB;

[0044] Figure 6 for Figure 5 A partial enlarged view of the middle X;

[0045] Figure 7 for Figure 6 A partial enlarged view of Y in the middle;

[0046] Figure 8 for Figure 7 A partial enlarged view of the middle Z;

[0047] Fig. 9 An exploded schematic diagram of a caliper assembly and a clamping assembly according to an embodiment of the present invention;

[0048] Fig.10 An exploded schematic diagram of a clamping assembly according to an embodiment of the present invention;

[0049] Fig.11 An exploded schematic diagram of a second rotating frame according to an embodiment of the present invention;

[0050] Fig.12 for Fig.11 A partial enlarged view of middle W;

[0051] Fig.13 It is a schematic diagram of a clamping state of a top drive device for ocean exploration according to an embodiment of the present invention;

[0052] Fig.14 It is a structural schematic diagram of the clamping state of a clamping assembly according to an embodiment of the present invention.

[0053] in:

[0054] 100-hanger;

[0055] 200-first clamp body;

[0056] 201- hydraulic chamber;

[0057] 300- second clamp body;

[0058] 400-bell mouth;

[0059] 500-piston;

[0060] 600-Clamp seat;

[0061] 700-clamping assembly;

[0062] 710-fixed plate;

[0063] 711-first chute;

[0064] 720 - first sliding frame;

[0065] 721-ring groove;

[0066] 730- first rotating frame;

[0067] 731-Card block;

[0068] 732-second chute;

[0069] 740 - second sliding frame;

[0070] 750- second rotating frame;

[0071] 751-Rotation rod;

[0072] 7511-transmission ring;

[0073] 7512-hinged hole;

[0074] 7513-Gear column;

[0075] 752- rack plate;

[0076] 753-sliding plate;

[0077] 754-gasket;

[0078] 755-clamping shaft;

[0079] 800-column. DETAILED DESCRIPTION

[0080] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0081] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0082] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] The present application embodiment provides a top drive device for marine exploration, such as Figure 1-Figure 4 and Fig. 9 As shown, it includes a hanger 100 , a clamp body assembly, a bell mouth 400 , a piston 500 and a clamp seat 600 . The clamp seat 600 is provided with a clamping assembly 700 for clamping a pipe column 800 .

[0084] like Figure 5 , Figure 6 and Fig.10 As shown, the clamping assembly 700 includes a fixed plate 710, a first sliding frame 720, a first rotating frame 730 and a linkage assembly. The fixed plate 710 is connected to the clamp seat 600, and the first sliding frame 720 is slidably disposed on the fixed plate 710 and can move along the length direction of the fixed plate 710.

[0085] The first rotating frame 730 is rotatably connected to the first sliding frame 720 so as to be rotatable relative to the first sliding frame 720 , so that the first rotating frame 730 contacts the pipe column 800 to clamp the pipe column 800 .

[0086] The linkage assembly is disposed between the fixed plate 710 and the first rotating frame 730 , and is used to rotate the first rotating frame 730 to drive the first sliding frame 720 to move along the length direction of the fixed plate 710 when the pipe column 800 acts on the first rotating frame 730 .

[0087] In this embodiment, the marine exploration top drive device is composed of main components such as a hanger 100, a clamp body assembly, a bell mouth 400, a piston 500 and a clamp seat 600, etc., to ensure the stability of the overall structure and the reliability of operation. The clamp seat 600 is equipped with a clamping assembly 700, which is responsible for the actual clamping work of the pipe string 800.

[0088] The fixed plate 710 in the clamping assembly 700 is connected to the clamp seat 600, serving as a stable foundation for the clamping assembly 700. The first sliding frame 720 slides on the fixed plate 710, and can move along the length direction of the fixed plate 710 to provide preliminary clamping adjustment. The first rotating frame 730 is rotatably connected to the first sliding frame 720, and can rotate relative to the first sliding frame 720 and contact the pipe column 800 to achieve the clamping function.

[0089] The linkage assembly is located between the fixed plate 710 and the first rotating frame 730, and is responsible for driving the first rotating frame 730 to rotate under the action of the pipe column 800, thereby driving the first sliding frame 720 to move along the length direction of the fixed plate 710, thereby achieving automatic adaptation and tight clamping of the diameter of the pipe column 800.

[0090] Specifically, the marine exploration top drive device is provided with a plurality of clamping assemblies 700, for example, two clamping assemblies 700 are respectively provided on each clamp seat 600. The working process of the marine exploration top drive device is as follows:

[0091] First, the caliper assembly is fixed in a proper position by the hanger 100 to ensure the stability of the whole device.

[0092] When it is necessary to clamp the pipe string 800 , the piston 500 moves forward under the control of the hydraulic chamber 201 , pushing the clamp seat 600 and the clamping assembly 700 thereon to approach the pipe string 800 .

[0093] When the pipe column 800 applies a force to the first rotating frame 730, the first rotating frame 730 is rotated in the first sliding frame 720 through the linkage assembly. The rotation of the first rotating frame 730 drives the first sliding frame 720 to move along the length direction of the fixed plate 710, thereby changing the position of the clamping assembly 700 relative to the pipe column 800 to adapt to the diameter change of the pipe column 800. At this time, the contact between the first rotating frame 730 and the pipe column 800 can tightly clamp the pipe column 800.

[0094] Through the above linkage mechanism, the pipe string 800 is effectively clamped in the top drive device, ready for subsequent drilling or operation.

[0095] The clamping assembly 700 of the present application can automatically adapt to pipes 800 of different diameters without manual adjustment or replacement of parts, thereby improving operation efficiency. The hydraulically controlled piston 500 provides precise force output, ensuring that the clamp seat 600 and the clamping assembly 700 can stably clamp the pipe 800. In addition, the present application integrates advanced hydraulic control and precision mechanical linkage technology, further optimizing the top drive device for marine exploration.

[0096] In one embodiment, if Fig.10 As shown, the fixing plate 710 is provided with a first sliding groove 711 , and the first sliding frame 720 is disposed in the first sliding groove 711 and can move along the length direction of the first sliding groove 711 .

[0097] The first sliding frame 720 is provided with a T-shaped annular groove 721 , and the first rotating frame 730 is provided with a T-shaped clamping block 731 matching the annular groove 721 . The first rotating frame 730 can rotate within the first sliding frame 720 and can drive the first sliding frame 720 to move.

[0098] In this embodiment, the fixing plate 710 is provided with a first slide groove 711 to provide a guide and movement path for the first sliding frame 720. The first sliding frame 720 is located in the first slide groove 711 and can move along the length direction of the first slide groove 711 to adjust the clamping position of the pipe column 800.

[0099] The first sliding frame 720 is provided with a T-shaped annular groove 721, which cooperates with the T-shaped block 731 on the first rotating frame 730 to form a mechanical linkage. The first rotating frame 730 can drive the first sliding frame 720 to move and rotate inside the first sliding frame 720 to adapt to and clamp pipes 800 of different diameters.

[0100] In actual application, before the clamping operation begins, the pipe string 800 is positioned within the jaw range of the top drive. The hydraulic system drives the piston 500 to make the first rotating frame 730 contact the pipe string 800. When the pipe string 800 acts on the first rotating frame 730 in reverse, the first rotating frame 730 rotates in the first sliding frame 720. The cooperation between the block 731 and the annular groove 721 enables the first rotating frame 730 to drive the first sliding frame 720 to move to an appropriate position. At this time, the first rotating frame 730 contacts the pipe string 800 to achieve a tight clamping of the pipe string 800.

[0101] The present application allows the clamping force and position to be automatically adjusted according to the diameter of the pipe column 800 during the clamping process through the coordinated use of the first rotating frame 730 and the first sliding frame 720, thereby increasing the versatility of the device and improving the accuracy and reliability of clamping the pipe column 800.

[0102] In one embodiment, if Fig.10 As shown, the linkage assembly includes a rack and a gear ring. The rack is relatively arranged on the fixed plate 710. The gear ring is relatively arranged on the first rotating frame 730 and can be meshed with the corresponding rack, so that the first rotating frame 730 moves along the fixed plate 710 when rotating.

[0103] In this embodiment, the rack is fixed on the fixed plate 710 as part of the linkage assembly to provide a guide for linear motion. The ring gear is mounted on the first rotating frame 730 and meshes with the rack, allowing the first rotating frame 730 to rotate when moving along the fixed plate 710, thereby achieving synchronization of linear and rotational motions of the first rotating frame 730 during the clamping operation, thereby improving the flexibility and adaptability of the clamping assembly 700.

[0104] In actual application, the first rotating frame 730 is in the initial position of the rack on the fixed plate 710, ready for clamping operation. When the pipe column 800 reacts to the first rotating frame 730, the ring gear of the first rotating frame 730 begins to mesh with the rack on the fixed plate 710. The meshing of the ring gear and the rack causes the first rotating frame 730 to move linearly along the rack, thereby driving the first sliding frame 720 to move along the first slide groove 711. At the same time, due to the meshing action, the first rotating frame 730 also rotates, that is, it deflects to effectively contact with the pipe column 800.

[0105] As the first rotating frame 730 moves and rotates, the clamping assembly 700 adapts to the diameter change of the pipe string 800 and achieves tight clamping. After the first rotating frame 730 moves to a suitable position, it stops moving and completes the clamping of the pipe string 800.

[0106] The present application provides precise linear and angular control through the meshing of the rack and the gear ring, ensuring that the pipe string 800 is accurately clamped, and allows the first rotating frame 730 to automatically adjust its position according to the diameter of the pipe string 800, thereby improving the adaptability of the clamping assembly 700.

[0107] In one embodiment, if Figure 6 , Fig.10 and Fig.14 As shown, the clamping assembly 700 further includes a second sliding frame 740, a second rotating frame 750 and a linkage assembly.

[0108] The second sliding frame 740 is slidably disposed on the first rotating frame 730 and is capable of moving along the length direction of the first rotating frame 730;

[0109] The second rotating frame 750 is rotatably connected to the second sliding frame 740 so as to be rotatable relative to the second sliding frame 740;

[0110] The linkage assembly is disposed between the second rotating frame 750 and the first rotating frame 730 , and is used to rotate the second rotating frame 750 to drive the second sliding frame 740 to move along the length direction of the first rotating frame 730 when the pipe column 800 acts on the second rotating frame 750 .

[0111] In this embodiment, the clamping assembly 700 is further expanded by adding a second sliding frame 740 and a second rotating frame 750 , as well as a linkage assembly therebetween, thereby allowing for more precise adjustment of the clamping position and strength to accommodate pipes 800 of different diameters.

[0112] Among them, the structure of the linkage assembly between the first rotating frame 730 and the second rotating frame 750 is the same as the structure of the linkage assembly between the fixed plate 710 and the first rotating frame 730, the structure of the second sliding frame 740 is similar to the structure of the first sliding frame 720, and the structure of the second rotating frame 750 is similar to the structure of the first rotating frame 730, so they are not repeated here.

[0113] Specifically, the second sliding frame 740 is mounted on the first rotating frame 730 and can slide along its length direction, providing an additional adjustment dimension. The second rotating frame 750 is rotatably connected to the second sliding frame 740 and can rotate relative to the second sliding frame 740 to adapt to the clamping requirements of the pipe column 800. The linkage assembly is located between the second rotating frame 750 and the first rotating frame 730 to ensure that the second rotating frame 750 can rotate under the action of the pipe column 800, thereby driving the second sliding frame 740 to move along the length direction of the first rotating frame 730.

[0114] The working process of the marine exploration top drive device is as follows:

[0115] When the pipe string 800 needs to be clamped, the hydraulic chamber 201 is pressurized, and the piston 500 pushes the clamp seat 600, so that the clamp assembly 700 clamps the pipe string 800. When the pipe string 800 needs to be released, the hydraulic chamber 201 is depressurized, the piston 500 retracts, and the clamp assembly 700 releases the pipe string 800.

[0116] During the clamping process, when the pipe column 800 acts on the first rotating frame 730, the first rotating frame 730 rotates and drives the first sliding frame 720 to move along the fixed plate 710 through the linkage assembly between the first rotating frame 730 and the first sliding frame 720, thereby achieving clamping or releasing. At the same time, the second rotating frame 750 and the second sliding frame 740 work in a similar manner to provide additional clamping points and enhance stability.

[0117] The working process of the second rotating frame 750 and the second sliding frame 740 is as follows: before the clamping operation, the second sliding frame 740 and the second rotating frame 750 are in the initial position, ready to clamp the pipe column 800 .

[0118] The pipe column 800 acts on the second rotating frame 750, and through the linkage assembly between the second rotating frame 750 and the second sliding frame 740, the second rotating frame 750 starts to rotate. The rotation of the second rotating frame 750 drives the second sliding frame 740 to move along the length direction of the first rotating frame 730, thereby clamping the pipe column 800.

[0119] The coordinated action of the second sliding frame 740 and the second rotating frame 750 allows the clamping assembly 700 to adapt to pipes 800 of different diameters, ensuring tight and uniform clamping. When the second sliding frame 740 moves to the appropriate position, the second rotating frame 750 stops rotating, completing the clamping of the pipe 800.

[0120] The present application can simultaneously adjust the positions of the second rotating frame 750 and the second sliding frame 740 on the basis of adapting to pipes 800 of different sizes under the cooperation of the first sliding frame 720 and the first rotating frame 730, so that the second rotating frame 750 is relatively evenly distributed on the outer wall of the pipe 800, avoiding excessive concentration of the clamping position. In addition, through the cooperation of the second sliding frame 740 and the second rotating frame 750, the clamping assembly 700 can adapt to pipes 800 of more sizes.

[0121] In one embodiment, if Fig.11 and Fig.12 As shown, the second rotating frame 750 includes a rotating rod 751 , a rack plate 752 , a sliding plate 753 , a gasket 754 and a clamping shaft 755 .

[0122] The rotating rod 751 has a cavity, and one end of the rack plate 752 extends into the cavity and can move along the cavity;

[0123] The sliding plate 753 is relatively arranged on the cavity wall of the cavity, and can move along the cavity driven by the rack plate 752;

[0124] One end of the gasket 754 is connected to the sliding plate 753;

[0125] The clamping shaft 755 is resettably arranged on the edge of the rotating rod 751 and is connected to the other end of the gasket 754 so that the rack plate 752 moves when the pipe column 800 acts on the rack plate 752. The movement of the rack plate 752 drives the sliding plate 753 to move in the opposite direction, so that the clamping shaft 755 can retract the gasket 754.

[0126] In this embodiment, the rotating rod 751 has a cavity, which serves as the base of the second rotating frame 750. One end of the rack plate 752 extends into the cavity of the rotating rod 751 and can move in a certain direction in the cavity. A spring is provided between the end of the rack plate 752 extending into the cavity and the cavity.

[0127] The sliding plate 753 is arranged relative to the cavity wall of the cavity, and can move along the cavity under the drive of the rack plate 752. One end of the gasket 754 is connected to the sliding plate 753, which plays a buffering and adjustment role. The clamping shaft 755 is arranged at the edge of the rotating rod 751, connected to the other end of the gasket 754, and can retract the gasket 754 when the rack plate 752 moves. Among them, the clamping shaft 755 is installed on the rotating rod 751 through a torsion spring.

[0128] In actual application, the components of the second rotating frame 750 are in the initial position, ready to clamp the pipe column 800. When the pipe column 800 acts on the rack plate 752, the rack plate 752 moves rightward along the cavity under the action of the pipe column 800, and the movement of the rack plate 752 drives the sliding plate 753 to move in the opposite direction (leftward).

[0129] The movement of the sliding plate 753 causes the gasket 754 to produce a redundant portion, and because the clamping shaft 755 is installed by a torsion spring, the redundant gasket 754 can be wound around its outer wall to recover the gasket 754. The gasket 754 can be cushioned between the clamping shaft 755 and the outer wall of the pipe column 800 to form a more stable clamping, while also avoiding clamp marks.

[0130] The present application dynamically clamps the pipe column 800 through the second rotating frame 750. When adapting to pipe columns 800 of different diameters, the friction between the clamping shaft 755 and the outer wall of the pipe column 800 is increased through the gasket 754 to form a more stable clamp and avoid clamp marks.

[0131] In one embodiment, if Figure 10-12 As shown, the rotating rod 751 includes a transmission ring 7511 , a hinge hole 7512 and a gear column 7513 .

[0132] The transmission ring 7511 has a recessed portion, and the hinge hole 7512 is provided on the recessed portion for mounting the clamping shaft 755 via a torsion spring;

[0133] The gear column 7513 is relatively disposed between the gear plate and the sliding plate 753, and is used to drive the gear plate to rotate when the gear plate moves, so that the sliding plate 753 moves in the opposite direction.

[0134] In this embodiment, the transmission ring 7511 has a recessed portion to provide structural support and a functional extension point for the rotating rod 751. The hinge hole 7512 is located on the recessed portion and is used to install the clamping shaft 755 through a torsion spring, allowing the clamping shaft 755 to retract the gasket 754. The gear column 7513 is disposed between the rack plate 752 and the sliding plate 753, and cooperates with the movement of the rack plate 752 to drive the sliding plate 753 to move in the opposite direction.

[0135] In actual application, the rotating rod 751, the transmission ring 7511, the hinge hole 7512 and the gear column 7513 are in the initial position, and the clamping shaft 755 is installed in the hinge hole 7512 through the torsion spring, ready for clamping action.

[0136] The pipe column 800 is guided to the action area of ​​the clamping assembly 700, and the pipe column 800 acts on the rack plate 752, triggering the rack plate 752 to move along the cavity. The movement of the rack plate 752 drives the sliding plate 753 to move in the opposite direction through the gear column 7513. The movement of the sliding plate 753 causes the gasket 754 to be released or tightened. If the gasket 754 is released, the clamping shaft 755 recovers the gasket 754 through the action of the torsion spring.

[0137] After adjustment, the gasket 754 can not only adapt to the diameter change of the pipe column 800, but also increase the friction between the clamping shaft 755 and the outer wall of the pipe column 800, forming a more stable clamping, while also avoiding clamping marks.

[0138] In one embodiment, if Figure 8 As shown, the gasket 754 is a thickness gradient structure, and its thickness increases gradually in the direction close to the sliding plate 753. In this embodiment, the thickness gradient structure of the gasket 754 is important for the stability of clamping and the protection of the pipe column 800.

[0139] In actual application, the second rotating frame 750 and the gasket 754 are in the initial position, ready to clamp the pipe string 800. The small diameter pipe string 800 is guided to the active area of ​​the clamping assembly 700.

[0140] The pipe column 800 acts on the rack plate 752, triggering the rack plate 752 to move along the cavity. The rack plate 752 moves a corresponding amount according to the diameter of the pipe column 800. The movement of the rack plate 752 drives the sliding plate 753 to move through the gear column 7513, so that the gasket 754 is retracted or unfolded. The small diameter pipe column 800 causes the gasket 754 to be retracted more, exposing a thicker part.

[0141] The thicker part of the gasket 754 is located between the clamping shaft 755 and the outer wall of the pipe column 800, forming a stable clamp. Due to the reasonable adjustment of the gasket 754, the outer wall of the pipe column 800 is not damaged, and the uneven pressure on the outer wall of the pipe column 800 is avoided, reducing the risk of clamp marks.

[0142] The gasket 754 with a gradually changing thickness of the present application improves the clamping stability of pipes 800 of different diameters, and the gasket 754 can adapt to pipes 800 of different diameters, thereby increasing the versatility of the clamping assembly 700. Reasonable adjustment of the gasket 754 avoids damage to the surface of the pipe 800, protects the integrity of the pipe 800, and reduces the maintenance and replacement costs caused by damage to the pipe 800.

[0143] In one embodiment, if Figure 1-Figure 4 As shown, the clamp body assembly includes a first clamp body 200 and a second clamp body 300 that are arranged opposite to each other, and the first clamp body 200 is connected to the hanger 100;

[0144] A hydraulic chamber 201 is provided in the first caliper body 200 and the second caliper body 300 respectively. A piston 500 is provided in the hydraulic chamber 201. The inner ends of the pistons 500 are connected to the caliper seats 600 respectively. The two pistons 500 can move toward or away from each other so that the clamping assembly 700 clamps or releases the pipe column 800.

[0145] In the embodiment of the present application, the caliper assembly includes a first caliper body 200 and a second caliper body 300, the two caliper bodies are arranged opposite to each other, the first caliper body 200 is connected to the hanger 100 by bolts, and the first caliper body 200 and the second caliper body 300 are detachably connected. Hydraulic chambers 201 are respectively provided in the first caliper body 200 and the second caliper body 300, and these hydraulic chambers 201 are part of the hydraulic system and are used to transmit power. A piston 500 is provided in the hydraulic chamber 201, and the inner end of the piston 500 is connected to the caliper seat 600, and the fixing plate 710 of the clamping assembly 700 is fixedly connected to the caliper seat 600. The piston 500 can move toward or away from each other, and according to the moving direction, the clamping assembly 700 will clamp or loosen the pipe column 800.

[0146] In actual application, the hydraulic system is filled with fluid and ready to provide power, and the pipe string 800 is positioned within the clamping range of the clamp assembly. The hydraulic system provides pressure to the hydraulic chamber 201, and the pistons 500 move toward each other, pushing the clamp seat 600 toward the center line, and the clamp assembly 700 clamps the pipe string 800.

[0147] After the required clamping force is reached, the hydraulic system maintains the pressure to maintain the clamping state of the pipe string 800. The hydraulic system reduces the pressure, the pistons 500 move in opposite directions, the clamp seats 600 separate, and the clamping assembly 700 releases the pipe string 800. After the pipe string 800 is successfully clamped or released, the hydraulic system stops supplying fluid to complete the clamping or releasing operation.

[0148] In one embodiment, if Figure 5 and Figure 6 As shown, four clamping assemblies 700 are provided, and two clamping assemblies 700 located on the same clamp seat 600 form a group.

[0149] In this embodiment, the layout and configuration of the clamping assemblies 700 in the marine exploration top drive device are more reasonable, and the clamping efficiency and uniformity are improved by changing the number and grouping method of the clamping assemblies 700.

[0150] Specifically, a total of four clamping assemblies 700 are provided on the marine exploration top drive device, and the clamping assemblies 700 are distributed on the clamp seat 600 and arranged symmetrically to ensure uniform distribution of clamping force. Two clamping assemblies 700 on the same clamp seat 600 are paired with each other to form a group to achieve collaborative work.

[0151] In actual application, the pipe string 800 is guided to the center position of the clamping assembly 700. The two groups of clamping assemblies 700 are synchronously operated by the hydraulic system, and move toward each other to clamp the pipe string 800. Due to the symmetrical layout and group coordination of the clamping assemblies 700, the pipe string 800 is evenly clamped, avoiding local stress concentration. Through the control of the hydraulic system, the two groups of clamping assemblies 700 move away from each other and release the pipe string 800 synchronously.

[0152] The symmetrical layout and grouped configuration of the clamping assembly 700 of the present application ensure uniform clamping of the tubular column 800 , reduce local stress, help improve the stability of the tubular column 800 during operation, and reduce wear on the tubular column 800 and the clamping assembly 700 .

[0153] In one embodiment, if Figure 7 As shown, the diameters of the two transmission rings 7511 of the same clamping assembly 700 are different.

[0154] In this embodiment, the clamping assemblies 700 are divided into different groups, each group includes two clamping assemblies 700, and each clamping assembly 700 includes two second rotating frames 750, which work together to clamp the pipe column 800. In the same group of clamping assemblies 700, the diameters of the two transmission rings 7511 are different, which affects the position of the rack on the first rotating frame 730. The transmission rings 7511 of different diameters cooperate with the racks at different positions on the first rotating frame 730, so that the second rotating frame 750 rotates and drives the second sliding frame 740 to move, so as to adapt to pipe columns 800 of different sizes.

[0155] In practical application, the diameter of the transmission ring 7511 of the second rotating frame 750 close to the pipe string 800 is greater than the diameter of the transmission ring 7511 of the second rotating frame 750 far from the pipe string 800 .

[0156] The clamping assembly 700 is in the initial position, ready to clamp the pipe string 800. The pipe string 800 is guided to the center of the clamping assembly 700, and the pipe string 800 acts on the first rotating frame 730, triggering the clamping action. The first rotating frame 730 starts to rotate, and the rotation of the first rotating frame 730 drives the first sliding frame 720 to move, and the second rotating frame 750 also rotates after contacting the pipe string 800, so that the second sliding frame 740 moves.

[0157] In this process, due to the difference in diameters of the transmission ring 7511 , the second rotating frame 750 with a larger diameter will drive the second sliding frame 740 to move a greater distance, so that the two second rotating frames 750 are closer to each other and adapt to pipes 800 of different diameters.

[0158] Exemplarily, four clamping assemblies 700 are provided, two clamping assemblies 700 located on the same clamp seat 600 form a group, and two second rotating frames 750 are respectively provided on one clamping assembly 700.

[0159] like Figure 6 and Fig.13 As shown, the working process of the marine exploration top drive device is as follows:

[0160] The hanger 100 is fixed to the first clamp body 200 and the second clamp body 300 by bolts to keep the device stable. The clamp seat 600 is fixed to the piston 500, and the piston 500 is controlled to move through the hydraulic chamber 201 to adapt to pipes 800 of different lengths.

[0161] When the pipe string 800 needs to be clamped, the hydraulic system provides pressure to the hydraulic chamber 201 , and the piston 500 pushes the clamp seat 600 to move forward to prepare for clamping the pipe string 800 .

[0162] During clamping, when the pipe column 800 contacts the clamping assembly 700 , the first rotating frame 730 is triggered to rotate, and the ring gear of the first rotating frame 730 engages with the rack of the fixed plate 710 to drive the first sliding frame 720 to move along the first sliding groove 711 to adapt to the diameter of the pipe column 800 .

[0163] In this process, the two clamping assemblies 700 on the same clamp seat 600 approach each other until the two second rotating frames 750 on the same clamping assembly 700 contact the pipe column 800 at the same time, at which time the first rotating frame 730 stops rotating and the first sliding frame 720 stops moving. Thus, the first sliding frame 720 moves by the rotation of the first rotating frame 730, thereby adapting to pipe columns 800 of different sizes.

[0164] And while the first rotating frame 730 is rotating, the second rotating frame 750 is also performing the same action relative to the second sliding frame 740, wherein when the second rotating frame 750 contacts the pipe column 800, it rotates under the action of the pipe column 800, and the second rotating frame 750 is engaged with the rack on the first rotating frame 730 through the transmission ring 7511, so that the second sliding frame 740 moves along the second slide groove 732, adjusts the clamping position of the pipe column 800, and further adapts to the pipe column 800.

[0165] Since the transmission rings 7511 of the two second rotating frames 750 on the same clamping assembly 700 are of different sizes, the two second rotating frames 750 will drive the corresponding second sliding frames 740 to move different distances according to the diameter of the pipe column 800, and finally the second sliding frames 740 gradually approach each other. At this time, the second rotating frames 750 on the inner sides of the two clamping assemblies 700 on the same clamp seat 600 are also in a close state. In this way, when the clamping assembly 700 is adapted to pipe columns 800 of different sizes, the positions of the second rotating frames 750 can also be adjusted at the same time, so that the second rotating frames 750 are relatively evenly distributed on the outer wall of the pipe column 800, avoiding excessive concentration of the clamping positions.

[0166] When the second rotating frame 750 completes the clamping, the rack plate 752 abuts against the outer wall of the pipe column 800. The movement amount of the rack plate 752 is determined according to the diameter of the pipe column 800. As the rack plate 752 moves to the right, it drives the sliding plate 753 to move to the left by meshing with the gear column 7513.

[0167] At this time, the clamping shaft 755 rotates under the action of the torsion spring to realize the folding or unfolding of part of the gasket 754, and the gasket 745 is a structure with a gradual thickness change. The present application can adaptively adjust the thickness of the gasket 745 in contact with the pipe column 800 according to the different diameters of the pipe column 800, so that the thickness of different parts of the gasket 745 can adapt to pipe columns 800 of different diameters.

[0168] Among them, when the diameter of the pipe column 800 is large, since the large-diameter pipe column 800 itself has a large mass and strong rigidity, the vibration amplitude is relatively small during use. The thinner part on the gasket 745 can be appropriately selected to meet the basic shock absorption requirements.

[0169] When the diameter of the pipe string 800 is small, the pipe string 800 of small diameter is light in weight and has low rigidity, and its stability is poor. Therefore, the pipe string 800 of small diameter is more likely to vibrate more when subjected to the same external force than the pipe string 800 of large diameter. At this time, it is necessary to select a thicker part of the gasket 745 or a shock-absorbing pad with high damping characteristics to effectively absorb and reduce vibration energy.

[0170] Therefore, when the second rotating frame 750 clamps the small diameter pipe column 800, the rack plate 752 moves more, thereby realizing more margin for the gasket 754 to be retracted. The thicker gasket 754 is partially padded between the clamping shaft 755 and the outer wall of the pipe column 800 to form a more stable clamping and also avoid clamping marks.

[0171] When it is necessary to release the pipe string 800, the hydraulic system is decompressed, the piston 500 retracts, and the clamp seat 600 drives the clamping assembly 700 to release the pipe string 800, completing the clamping cycle.

[0172] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0173] The above-described embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A top drive device for marine exploration, characterized in that: It includes a hanger, a clamp body assembly, a bell mouth, a piston and a clamp seat. The clamp seat is provided with a clamp assembly for clamping a pipe column. The clamp assembly includes: A fixing plate connected to the clamp seat; A first sliding frame, which is slidably disposed on the fixed plate and can move along the length direction of the fixed plate; a first rotating frame, which is rotatably connected to the first sliding frame so as to be rotatable relative to the first sliding frame, so that the first rotating frame contacts the pipe column to clamp the pipe column; a linkage assembly, which is disposed between the fixed plate and the first rotating frame, and is used for causing the first rotating frame to rotate to drive the first sliding frame to move along the length direction of the fixed plate when the pipe column acts on the first rotating frame; The fixed plate is provided with a first slide groove, and the first slide frame is arranged in the first slide groove and can move along the length direction of the first slide groove; The first sliding frame is provided with a ring groove with a T-shaped cross section, and the first rotating frame is provided with a T-shaped clamping block matched with the ring groove, and the first rotating frame can rotate in the first sliding frame and drive the first sliding frame to move; The linkage components include: A rack, which is arranged on the fixed plate; a gear ring, which is disposed on the first rotating frame and can mesh with the corresponding rack, so that the first rotating frame moves along the fixed plate when rotating; The clamping assembly also includes: a second sliding frame, which is slidably disposed on the first rotating frame and is capable of moving along the length direction of the first rotating frame; a second rotating frame, which is rotatably connected to the second sliding frame so as to be rotatable relative to the second sliding frame; a linkage assembly, which is arranged between the second rotating frame and the first rotating frame, and is used for causing the second rotating frame to rotate to drive the second sliding frame to move along the length direction of the first rotating frame when the pipe column acts on the second rotating frame; wherein the structure of the linkage assembly between the first rotating frame and the second rotating frame is the same as the structure of the linkage assembly between the fixed plate and the first rotating frame; The second turret comprises: A rotating rod having a cavity; A rack plate, one end of which extends into the cavity and is movable along the cavity; A sliding plate, which is arranged on the cavity wall of the cavity and can move along the cavity driven by the rack plate; a gasket, one end of which is connected to the sliding plate; A clamping shaft, which is resettably arranged at the edge of the rotating rod and connected to the other end of the gasket, so that when the pipe column acts on the rack plate, the rack plate moves, and the movement of the rack plate drives the sliding plate to move in the opposite direction, so that the clamping shaft retracts the gasket; The gasket has a gradually changing thickness structure, and its thickness increases gradually in a direction approaching the sliding plate.

2. The marine exploration top drive device according to claim 1, characterized in that: The rotating rod comprises: a transmission ring having a recess; a hinge hole provided on the recessed portion for mounting the clamping shaft via a torsion spring; The gear column is arranged between the rack plate and the sliding plate, and is used to drive the gear column to rotate when the rack plate moves, so that the sliding plate moves in the opposite direction.

3. The marine exploration top drive device according to claim 2, characterized in that: The clamp assembly comprises a first clamp body and a second clamp body which are arranged opposite to each other, and the first clamp body is connected to the hanger; The first clamp body and the second clamp body are respectively provided with hydraulic chambers, and pistons are provided in the hydraulic chambers. The inner ends of the pistons are respectively connected to the clamp seats, and the two pistons can move toward or away from each other so that the clamping assembly clamps or releases the pipe column.

4. The marine exploration top drive device according to claim 3, characterized in that: Four clamping assemblies are provided, and two clamping assemblies located on the same clamp seat form a group.

5. The marine exploration top drive device according to claim 4, characterized in that: The two transmission rings of the same clamping assembly have different diameters.

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