Lifting pulley for conveying tubular column

Abstract

The utility model relates to a lifting tackle for conveying tubular columns. The lifting tackle comprises a tackle body, a support, a transverse movement adjusting assembly, a turnover mechanism and a lifting driving assembly. The pulley body can be movably arranged on the stand column in a sleeving mode, the lifting driving assembly can be installed on the stand column, and the lifting driving assembly is connected to the pulley body so as to drive the pulley body to ascend and descend along the stand column; the support is installed on the pulley body through the transverse moving adjusting assembly. The turnover mechanism is installed on the support and can drive the clamp assembly installed on the turnover mechanism to rotate in the vertical plane. The pipe clamp has the beneficial effects that the situation that equipment is damaged due to excessive deformation and stress of the pipe clamp caused by inaccurate positioning is effectively avoided, the maintenance cost of the equipment is reduced, the continuity of drilling operation is guaranteed, and the overall safety and high efficiency of oil and gas drilling operation in a wellhead operation link are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and natural gas drilling, in particular to a lifting pulley used for transporting a pipe column. Background Art

[0002] During oil and gas drilling operations, the transfer of pipes at the wellhead is a critical step in ensuring efficient and continuous drilling operations. Typically, the drilling platform manipulator is responsible for transferring the pipes to the pipe clamps, and the two must work closely together to complete the pipe transfer, a process that requires extremely high positioning accuracy.

[0003] Under existing technical conditions, the wellhead environment inherently presents numerous unstable factors, such as constant mechanical vibration, complex spatial layout, and subtle positional variations caused by external conditions like weather. This makes it difficult for the pipe clamp and the drilling platform manipulator to maintain precise positioning during pipe handover. Once positioning deviates, the interaction forces between the pipe clamp and the manipulator are irrationally distributed, resulting in abnormal stress conditions during the handover process. This not only easily causes excessive local deformation in the pipe clamp, but also leads to excessive stress concentration in critical areas. As the number of operations increases, the repeated effects of these excessive deformations and stresses quickly exceed the equipment's tolerance limits, frequently causing equipment failure. Equipment damage inevitably leads to the interruption of drilling operations, and subsequent repairs are not only time-consuming and labor-intensive, but also significantly increase costs. More seriously, it can negatively impact the progress of the entire drilling project and the safety of personnel. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a lifting pulley for pipe column transportation, which solves the technical problem of inaccurate positioning in the prior art causing local stress concentration and resulting in equipment damage.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] The utility model provides a lifting pulley for transporting pipe columns, comprising a pulley body, a bracket, a transverse adjustment component, a flip mechanism and a lifting drive component; the pulley body can be movably mounted on a column, the lifting drive component can be installed on the column, and the lifting drive component is connected to the pulley body to drive the pulley body to rise and fall along the column; the bracket is installed on the pulley body through the transverse adjustment component; the flip mechanism is installed on the bracket, and the flip mechanism can drive the clamp assembly installed thereon to rotate in a vertical plane.

[0009] Optionally, the transverse adjustment assembly includes an adjustment seat, a road wheel and a transverse assembly; the adjustment seat is arranged on the pulley body, a transversely extending adjustment position is opened in the adjustment seat, and a positioning groove is provided in the middle of the adjustment position; the bracket is movably supported in the positioning groove through the road wheel; the bracket is laterally movably connected to the car change body through the transverse assembly.

[0010] Optionally, the transverse movement assembly includes a plurality of docking frames and a plurality of connecting rods; the plurality of docking frames are arranged on the pulley body, and the bracket is connected to the plurality of docking frames in a one-to-one correspondence and laterally movable manner through a plurality of connecting rods.

[0011] Optionally, the docking frame includes a frame body and an anti-overturning roller; the anti-overturning roller is rotatably arranged at the free end of the frame body, and its rotation axis is vertically oriented; the connecting rod is laterally movably arranged between the anti-overturning roller and the frame body.

[0012] Optionally, the flipping mechanism includes a flipping driver and a flipping seat; the flipping driver is mounted on the bracket, the flipping seat is rotatably mounted on the bracket, the clamp assembly can be mounted on the flipping seat, and the flipping driver is connected to the flipping seat to drive the flipping seat to rotate in a vertical plane.

[0013] Optionally, the flip seat has a first mounting portion and a second mounting portion, and the clamp assembly can connect the first mounting portion and the second mounting portion through a fastener.

[0014] Optionally, the tilting drive is a pneumatic cylinder, an electric cylinder or an oil cylinder.

[0015] Optionally, chain connecting seats are provided on the top and bottom of the pulley body; the pulley body is connected to the chain of the upgrade drive assembly through the chain connecting seats.

[0016] Optionally, a plurality of connecting rollers are evenly arranged in the pulley body, and the pulley body can be movably mounted on the column through the plurality of connecting rollers.

[0017] (3) Beneficial effects

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

[0019] The present invention provides a lifting pulley for transporting pipe strings. The pulley body is movably mounted on a column and driven up and down along the column by a lifting drive assembly mounted on the column and connected to the pulley body. This allows for flexible vertical adjustment to accommodate the diverse height requirements of different drilling operations. In various operational scenarios, the relevant components can be conveniently and accurately delivered to the corresponding height position, ensuring operational convenience and efficiency at the wellhead. The bracket is attached to the pulley body via a lateral adjustment assembly, which provides position adjustment and reset protection. This design addresses potential lateral displacement during the critical operation of pipe transfer, ensuring overall stability and accuracy of the device, effectively avoiding positioning inaccuracies caused by displacement and reducing the risk of damage to the equipment due to excessive deformation and stress caused by abnormal forces. A flipping mechanism enables the clamp assembly to flip the pipe within the vertical plane according to actual operational requirements, ensuring stable and reliable operation of the pipe during transitions between different positions, further ensuring the orderliness and accuracy of the operational process. Compared with existing technologies, this technology effectively avoids excessive deformation and stress in pipe clamps caused by inaccurate positioning, which in turn causes equipment damage. It reduces equipment maintenance costs, ensures the continuity of drilling operations, and significantly improves the overall safety and efficiency of oil and gas drilling operations in the wellhead operation link. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a lifting pulley for transporting a pipe string in a specific embodiment of the present invention driving a pipe to be lifted in a horizontal state;

[0021] Figure 2 This is a schematic diagram of a lifting pulley for transporting a pipe string in a specific embodiment of the present invention driving a pipe tool to lift in a vertical state;

[0022] Figure 3 It is a structural schematic diagram of the pulley body in a specific embodiment of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of a bracket in a specific embodiment of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the flip seat in a specific embodiment of the utility model.

[0025] [Description of Reference Numerals]

[0026] 1: Pulley body; 11: Connecting roller; 12: Chain connecting seat;

[0027] 2: bracket;

[0028] 3: Flip mechanism; 31: Flip driver; 32: Flip seat; 33: First mounting portion; 34: Second mounting portion;

[0029] 41: Adjustment seat; 42: Road wheel; 43: Positioning slot; 44: Connecting rod; 45: Frame; 46: Anti-overturning roller. DETAILED DESCRIPTION

[0030] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0031] like Figure 1 and Figure 2 As shown, this embodiment provides a lifting pulley for pipe column transportation, including a pulley body 1, a bracket 2, a transverse adjustment assembly, a flip mechanism 3 and a lifting drive assembly; the pulley body 1 can be movably mounted on the column, specifically, a plurality of connecting rollers 11 are evenly arranged in the pulley body 1, and the pulley body 1 can be movably mounted on the column through the plurality of connecting rollers 11; the lifting drive assembly can be installed on the column, and the lifting drive assembly is connected to the pulley body 1 to drive the pulley body 1 to rise and fall along the column; the bracket 2 is installed on the pulley body 1 through the transverse adjustment assembly; the flip mechanism 3 is installed on the bracket 2, and the flip mechanism 3 can drive the clamp assembly installed thereon to rotate in a vertical plane. Among them, chain connecting seats 12 are provided at the top and bottom of the pulley body 1; the pulley body 1 is connected to the chain of the upgrading drive assembly through the chain connecting seat 12.

[0032] Specifically, the pulley body 1 is movably mounted on the column and driven by a lifting drive assembly installed on the column and connected to the pulley body 1 to move it up and down along the column. It can flexibly adjust its vertical position to adapt to the diverse height requirements of different drilling operation stages. In various operation scenarios, the relevant components can be conveniently and accurately delivered to the corresponding height position, ensuring the operational convenience and efficiency of wellhead operations. The bracket 2 is installed on the pulley body 1 through the lateral adjustment assembly, which plays a role in position adjustment and reset protection. It is designed to cope with the lateral displacement that may occur in the key operation link of pipe handover, ensure the overall stability of the device and the accuracy of subsequent operations, effectively avoid problems such as inaccurate positioning due to displacement, and thus reduce the risk of equipment damage caused by excessive deformation and stress due to abnormal force. The flipping mechanism 3 enables the clamp assembly to complete the flipping action of the pipe in the vertical plane according to actual operation requirements, ensuring that the pipe can be operated stably and reliably during the transition between different postures, further ensuring the orderliness and accuracy of the operation process. Compared with existing technologies, this technology effectively avoids excessive deformation and stress in pipe clamps caused by inaccurate positioning, which in turn causes equipment damage. It reduces equipment maintenance costs, ensures the continuity of drilling operations, and significantly improves the overall safety and efficiency of oil and gas drilling operations in the wellhead operation link.

[0033] Furthermore, if Figure 3 and Figure 4 As shown, the transverse adjustment assembly includes an adjustment seat 41, a road wheel 42 and a transverse assembly; the adjustment seat 41 is arranged on the pulley body 1, and a transversely extending adjustment position is opened in the adjustment seat 41, and a positioning groove 43 is provided in the middle of the adjustment position; the bracket 2 is movably supported in the positioning groove 43 by the road wheel 42; the bracket 2 is laterally movably connected to the car change body through the transverse assembly. The shape of the positioning groove 43 is adapted to the road wheel 42, and its bottom surface has a certain inclination angle, and gradually decreases towards the center position of the positioning groove 43, so as to guide the road wheel 42 to move to the center position of the groove under the action of gravity; the bracket 2 is movably supported in the positioning groove 43 by the road wheel 42, and the road wheel 42 is made of high-strength wear-resistant material. The road wheel 42 forms a rolling friction fit with the bottom surface and side wall of the positioning groove 43, which reduces the friction during the movement and ensures the stability of the road wheel 42 moving in the positioning groove 43; the bracket 2 is laterally movably connected to the pulley body 1 through the transverse movement component. Under normal operating conditions, the road wheel 42 is located in the positioning groove 43. When lateral displacement occurs due to the handover of pipes, the road wheel 42 can drive the bracket 2 to automatically return to the standard position set by the positioning groove 43 based on its own gravity and the structural coordination with the positioning groove 43, thereby ensuring the horizontal position accuracy of the entire device and providing a guarantee for the subsequent accurate handover of pipes.

[0034] Specifically, if Figure 3 and Figure 4 As shown, in this specific embodiment, the transverse movement assembly includes multiple docking frames and multiple connecting rods 44; multiple docking frames are arranged on the pulley body 1, and the bracket 2 is connected to the multiple docking frames in a one-to-one and transversely movable manner through multiple connecting rods 44. It can provide a stable transverse movement guiding effect without hindering the self-resetting function of the road wheel 42 driving the bracket 2 to return to its original position; the bracket 2 is connected to the multiple docking frames in a one-to-one and transversely movable manner through multiple connecting rods 44. The connecting rod 44 is made of an alloy steel material with a certain elastic modulus, so that while allowing the bracket 2 to move laterally, it has a certain anti-deformation ability to avoid damage to the connecting rod 44 due to excessive lateral tension or impact force, thereby ensuring that the entire transverse movement adjustment assembly can function reliably under different working conditions, and the auxiliary adjustment seat 41, the road wheel 42 and the positioning groove 43 can achieve precise horizontal position adjustment and reset functions.

[0035] Furthermore, if Figure 3 and Figure 4 As shown, the docking frame includes a frame body 45 and an anti-overturning roller 46; the anti-overturning roller 46 is rotatably arranged at the free end of the frame body 45, and its rotation axis is vertically oriented, and the axle of the anti-overturning roller 46 adopts a thickened design and is installed with high-strength bearings to ensure that it can withstand a large lateral force. During the lateral movement of the bracket 2, especially in the unstable state that may occur when the road wheel 42 drives the bracket 2 to return to its position, the bracket 2 is effectively prevented from overturning, thereby ensuring the safety of the entire lateral adjustment process; the connecting rod 44 is laterally movably arranged between the anti-overturning roller 46 and the frame body 45, so that the horizontal position adjustment and reset mechanism composed of the adjustment seat 41, the road wheel 42 and the positioning groove 43 can reliably cope with various complex working conditions in oil and gas drilling wellhead operations.

[0036] Furthermore, if Figure 2 and Figure 5As shown, the turning mechanism 3 includes a turning actuator 31 and a turning base 32. The turning actuator 31 is mounted on the bracket 2, and the turning base 32 is rotatably mounted on the bracket 2. The clamp assembly can be mounted on the turning base 32. The turning actuator 31 is connected to the turning base 32 to drive the turning base 32 to rotate in the vertical plane. Specifically, the turning base 32 has a first mounting portion 33 and a second mounting portion 34, and the clamp assembly can be connected to the first mounting portion 33 and the second mounting portion 34 via fasteners. The turning actuator 31 drives the turning base 32 to rotate, which drives the clamp assembly to perform precise angular adjustments and pipe turning operations in the vertical plane according to operational requirements. Whether converting the pipe from a horizontal to a vertical position or adjusting its posture at different angles, the turning actuator 31 drives the turning base 32 to rotate smoothly. This ensures stable and accurate gripping and turning of the pipe during wellhead operations. In this embodiment, the turning actuator 31 is a pneumatic, electric, or hydraulic cylinder.

[0037] The use of a lifting pulley for pipe column transportation provided in this specific embodiment is as follows: during operation, the lifting drive assembly drives the pulley body 1 to vertically lift and lower along the column via a chain, and the connecting roller 11 inside the pulley body 1 will roll with the movement of the pulley body 1, ensuring that the entire lifting process is smooth and smooth, avoiding situations such as jamming or shaking that affect the operation. Before the pipe is handed over, the flip seat 32 is driven to rotate by the flip driver 31, and the pipe is driven to rotate from a vertical state to a horizontal state, or from a horizontal state to a vertical state through the clamp assembly. When unavoidable lateral displacement occurs during the pipe handover process (for example, due to mechanical vibration, the force of the pipe transfer at the moment, etc.), the road wheel 42 at the bottom of the bracket 2 will play a key role under the action of gravity. Due to the special design of the bottom surface of the positioning groove 43, the road wheel 42 will roll along the bottom surface of the positioning groove 43, driving the bracket 2 to automatically return to the standard position in the positioning groove 43, ensuring that the clamp assembly quickly returns to a relatively accurate horizontal position, thereby ensuring that subsequent pipe handover operations can continue to be carried out accurately and smoothly, avoiding excessive deformation and stress due to position deviation, affecting the normal use of the equipment.

[0038] 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 the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0039] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0042] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A lifting pulley for transporting a pipe string, characterized in that: It comprises a pulley body (1), a bracket (2), a transverse adjustment component, a turnover mechanism (3) and a lifting drive component; The pulley body (1) can be movably mounted on a column, the lifting drive assembly can be installed on the column, and the lifting drive assembly is connected to the pulley body (1) to drive the pulley body (1) to move up and down along the column; the bracket (2) is installed on the pulley body (1) through the transverse adjustment assembly; the turning mechanism (3) is installed on the bracket (2), and the turning mechanism (3) can drive the clamp assembly installed thereon to rotate in a vertical plane.

2. The lifting tackle for pipe string transportation according to claim 1, characterized in that: The transverse movement adjustment assembly comprises an adjustment seat (41), a road wheel (42) and a transverse movement assembly; An adjustment seat (41) is arranged on the pulley body (1); a transversely extending adjustment position is provided in the adjustment seat (41); a positioning groove (43) is provided in the middle of the adjustment position; the bracket (2) is movably supported in the positioning groove (43) by a road wheel (42); and the bracket (2) is laterally movably connected to the pulley body via a transverse movement assembly.

3. The lifting tackle for pipe string transportation according to claim 2, characterized in that: The transverse movement assembly includes a plurality of docking frames and a plurality of connecting rods (44); A plurality of docking frames are arranged on the pulley body (1), and the bracket (2) is connected to the plurality of docking frames in a one-to-one correspondence and in a transversely movable manner via a plurality of connecting rods (44).

4. The lifting tackle for pipe string transportation according to claim 3, characterized in that: The docking frame includes a frame body (45) and an anti-overturning roller (46); The anti-overturning roller (46) is rotatably arranged at the free end of the frame (45), with its rotation axis oriented vertically; the connecting rod (44) is laterally movably arranged between the anti-overturning roller (46) and the frame (45).

5. The lifting tackle for pipe string transportation according to claim 1, characterized in that: The turning mechanism (3) comprises a turning driver (31) and a turning seat (32); The turning driver (31) is mounted on the bracket (2), the turning seat (32) is rotatably mounted on the bracket (2), the clamp assembly can be mounted on the turning seat (32), and the turning driver (31) is connected to the turning seat (32) to drive the turning seat (32) to rotate in a vertical plane.

6. The lifting tackle for pipe string transportation according to claim 5, characterized in that: The flip seat (32) is provided with a first mounting portion (33) and a second mounting portion (34), and the clamp assembly can connect the first mounting portion (33) and the second mounting portion (34) via a fastener.

7. The lifting tackle for transporting a pipe string according to claim 5, characterized in that: The turning drive (31) is a pneumatic cylinder, an electric cylinder or an oil cylinder.

8. The lifting tackle for transporting a pipe string according to claim 1, wherein: A plurality of connecting rollers (11) are evenly arranged in the pulley body (1), and the pulley body (1) can be movably sleeved on the column via the plurality of connecting rollers (11).

9. The lifting tackle for transporting a pipe string according to claim 1, characterized in that: The top and bottom of the pulley body (1) are provided with chain connecting seats (12); The pulley body (1) is connected to the chain of the upgrade drive assembly through the chain connecting seat (12).

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