Anti-sideslip device for disassembly and assembly of derrick

Abstract

The utility model relates to the technical field of petroleum equipment, in particular to an anti-sideslip device for disassembly and assembly of a derrick. The supporting frames are fixedly arranged at the two ends of the supporting shaft assembly; the rotating ring assemblies are rotatably arranged on the supporting shaft assembly; the swivel assembly comprises: a ring body; the inner ring piece is arranged on the ring body, and the inner ring piece is rotatably arranged on the supporting shaft assembly; eccentricity exists between the axis of the inner ring piece and the axis of the outer circumferential wall of the ring body. The rotary ring assembly has the advantages that eccentricity exists between the axis of the inner ring piece and the axis of the outer circumferential wall of the ring body, so that when a derrick applies pressure to the rotary ring assembly, the rotary ring assembly can deflect. And the deflection can generate a height difference between the outer surfaces of the swivel assemblies, so that the limiting function of the derrick is realized. The height difference can effectively prevent the derrick from transversely sideslipping in the lifting process, and therefore the stability and safety of the derrick in the disassembly and assembly process are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to an anti-slip device for derrick assembly and disassembly. Background Technology

[0002] A derrick specifically refers to an oil drilling derrick, typically reaching a height of around forty meters. Due to its enormous size, it is difficult to transport as a whole. Therefore, it is disassembled into individual parts for transport and then reassembled on-site at the well site. A derrick generally consists of multiple sections. The traditional assembly method involves two cranes and a forklift working together to assemble each section sequentially from bottom to top. This method carries high safety risks, easily causing personal injury and damage to components.

[0003] In the prior art, Chinese utility model patent CN220317276U discloses "a self-propelled oil drilling derrick lifting device and its control system," which adopts a dual-lifting hydraulic structure and makes its support more stable and reliable through a reasonable force-bearing support structure layout, and has the function of adjustable support height. However, it still has the following technical problems in use: the lack of a lateral fixing device for the derrick makes it prone to lateral slippage during the lifting and lowering of the derrick.

[0004] Therefore, there is an urgent need for an anti-slip device for derrick assembly and disassembly that can resist lateral slippage during the assembly and disassembly process. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an anti-slip device for derrick assembly and disassembly, which solves the technical problem of lateral slippage during the assembly and disassembly of existing derricks.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0009] This utility model embodiment provides an anti-side slip device for derrick assembly and disassembly, comprising: a support shaft assembly; a support frame fixedly disposed at both ends of the support shaft assembly; and a rotating ring assembly, wherein a plurality of rotating ring assemblies are rotatably disposed on the support shaft assembly. The rotating ring assembly comprises: a ring body; an inner ring component disposed on the ring body and rotatably disposed on the support shaft assembly; and a sliding sleeve rotatably disposed on the outer peripheral wall of the ring body, wherein there is an eccentricity between the axis of the inner ring component and the axis of the outer peripheral wall of the ring body.

[0010] Optionally, the axis of the inner ring is located below the axis of the outer peripheral wall of the ring body, and the center of gravity of the ring body is located below the axis of the inner ring.

[0011] Optionally, the ring body has a cavity located above the inner ring component.

[0012] Optionally, the inner ring component is provided with a slot; the support shaft assembly includes: an outer shaft, with a support frame fixedly disposed at both ends of the outer shaft, and the inner ring component rotatably disposed on the outer shaft; a locking block, which is vertically movable and disposed on the outer shaft; an inner shaft, which is movable and disposed inside the outer shaft and is driven by a hydraulic cylinder; and a spring, which is convex outward and disposed on the inner shaft, and the inner shaft can selectively push the spring into the bottom of the locking block, and the spring can push the locking block into the slot.

[0013] Optionally, a spring is provided between the locking block and the outer shaft, which can reset the locking block into the outer shaft.

[0014] Optionally, the ring body is provided with a rope hole, and a pull rope is threaded through the rope hole. The pull rope passes through the rope holes of all the ring bodies in sequence and is connected to the pull-wire displacement sensor.

[0015] Optionally, magnets are provided on the rings, and the magnets of adjacent rings repel each other.

[0016] Optionally, the sliding sleeve and the ring body are connected by a bearing bush, and the inner ring and the support shaft assembly are connected by a bearing.

[0017] Optionally, the support frame is fixedly installed at the upper end of the lifting unit; the lifting unit is installed on the frame in a height-adjustable manner, and the lower end of the frame is provided with a movable part.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows: This utility model provides an anti-side-slip device for derrick assembly and disassembly, comprising: a support shaft assembly; a support frame fixedly disposed at both ends of the support shaft assembly; and a rotating ring assembly, wherein several rotating ring assemblies are rotatably disposed on the support shaft assembly. Each rotating ring assembly includes: a ring body; an inner ring component disposed on the ring body and rotatably disposed on the support shaft assembly; and a sliding sleeve rotatably disposed on the outer peripheral wall of the ring body. The axis of the inner ring component is eccentric to the axis of the outer peripheral wall of the ring body. Compared to existing technologies, the central axis of the inner ring component and the central axis of the outer cylinder of the ring body are not on the same straight line, causing the rotating ring assembly to deflect when pressure is applied to it by the derrick. This deflection creates a height difference between the outer surfaces of the rotating ring assembly, thereby achieving a limiting function for the derrick. This height difference effectively prevents lateral slippage of the derrick during lifting and lowering, thus enhancing the stability and safety during derrick assembly and disassembly. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the anti-slip device for derrick assembly and disassembly of this utility model;

[0021] Figure 2 for Figure 1 A schematic diagram showing the working state of the anti-slip device used for derrick assembly and disassembly;

[0022] Figure 3 for Figure 1 The diagram shows a structural schematic of an anti-slip device for derrick assembly and disassembly. To clearly show the internal structure, only one swivel assembly is shown.

[0023] Figure 4 for Figure 1 A cross-sectional view along the vertical centerline of the anti-slip device used for derrick assembly and disassembly.

[0024] Figure 5 for Figure 4 A partial enlarged view at point A of the cross-sectional view of the anti-slip device used for derrick assembly and disassembly;

[0025] Figure 6 for Figure 1 A schematic diagram of the rotating ring assembly in the anti-slip device used for derrick assembly and disassembly is shown.

[0026] Figure 7 for Figure 6 A cross-sectional view along the axis of symmetry of the swivel assembly in the anti-slip device for derrick assembly and disassembly.

[0027] Figure 8 for Figure 1 A schematic diagram showing the working state of the pull rope in the anti-slip device used for derrick assembly and disassembly;

[0028] Figure 9 This is a schematic diagram of the installation of Embodiment 2 of the anti-slip device for derrick assembly and disassembly of this utility model.

[0029] [Explanation of Labels in the Attached Image]

[0030] 1: Anti-skid device;

[0031] 101: Support frame;

[0032] 102: Support shaft assembly; 1021: Outer shaft; 1022: Inner shaft; 1023: Spring; 1024: Locking block; 1025: Spring;

[0033] 103: Rotary ring assembly; 1031: Ring body; 1032: Inner ring component; 1033: Slot; 1034: Sliding sleeve; 1035: Bearing bush; 1036: Bearing; 1037: Cavity; 1038: Rope threading hole; 1039: Magnet;

[0034] 104: Pull rope; 105: Linear displacement sensor; 106: Hydraulic cylinder;

[0035] 2: Lifting unit; 3: Frame; 4: Moving unit. Detailed Implementation

[0036] 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.

[0037] Example 1:

[0038] Reference Figures 1 to 8 This embodiment provides an anti-slip device 1 for derrick assembly and disassembly, used to prevent lateral slippage of the derrick during the assembly and disassembly of an oil drilling derrick. The anti-slip device 1 for derrick assembly and disassembly includes a support frame 2, a support shaft assembly 102 arranged in the horizontal direction, and several rotating ring assemblies 103, as detailed below.

[0039] In this embodiment, the support frame 101 is fixedly disposed at both ends of the support shaft assembly 102; a plurality of rotating ring assemblies 103 are rotatably disposed on the support shaft assembly 102; the rotating ring assembly 103 includes: a ring body 1031; an inner ring member 1032 disposed on the ring body 1031 and rotatably disposed on the support shaft assembly 102; and a sliding sleeve 1034 rotatably disposed on the outer peripheral wall of the ring body 1031, wherein there is an eccentricity between the axis of the inner ring member 1032 and the axis of the outer peripheral wall of the ring body 1031. The support frame 2 is fixedly connected to both ends of the support shaft assembly 102 by welding, pin connection, or snap-fit, etc., and the inner ring member 1032 in the rotating ring assembly 103 is larger than the support shaft assembly 102, therefore, the rotating ring assembly 103 can rotate on the support shaft assembly 102. The central axis of the inner ring 1032 is not on the same straight line as the central axis of the outer cylinder of the ring 1031. Therefore, when the derrick is placed on the rotating ring assembly 103, the rotating ring assembly 103 will deflect. This deflection can create a height difference between the surfaces of the conversion assembly. Since this height difference can lock the surface of the derrick and form a limit, it can prevent the derrick from sliding laterally during the assembly and disassembly process, thereby enhancing the stability and safety of the derrick during the assembly and disassembly process.

[0040] Furthermore, the axis of the inner ring 1032 is located below the axis of the outer peripheral wall of the ring 1031, and the center of gravity of the ring 1031 is located below the axis of the inner ring 1032. Therefore, the rotating ring assembly 103 can remain stable without being subjected to external forces, and after the derrick is disassembled, the rotating ring assembly 103 can return to its initial state under the influence of gravity.

[0041] Furthermore, the ring body 1031 has a cavity 1037, which is located above the inner ring 1032. In order to further lower the center of gravity of the ring body 1031, the cavity 1037 is provided to reduce the weight on the top of the ring body 1031 and make the center of gravity more downward. The cavity 1037 is crescent-shaped.

[0042] Furthermore, the inner ring 1032 is provided with a slot 1033; the support shaft assembly 102 includes: an outer shaft 1021, a support frame 101 fixedly disposed at both ends of the outer shaft 1021, and the inner ring 1032 rotatably disposed on the outer shaft 1021; a locking block 1024, which is vertically disposed on the outer shaft 1021; an inner shaft 1022, which is movably disposed inside the outer shaft 1021, and the inner shaft 1022 is driven by a hydraulic cylinder 106; and a spring 1023, which is convex outwardly disposed on the inner shaft 1022, and the inner shaft 1022 can selectively push the spring 1023 into the bottom of the locking block 1024, and the spring 1023 can push the locking block 1024 into the slot 1033. The slot 1033 is provided on the inner wall of the inner ring 1032 along its axial direction. The locking block 1024 abuts against the outer shaft 1021 and corresponds one-to-one with the rotating ring assembly 103. When the locking block 1024 is raised, its outer end can be inserted into the slot 1033. When the locking block 1024 is lowered, its outer end can be completely retracted into the outer shaft 1021. A hydraulic cylinder 106 is installed on one end of the support frame 2, and the telescopic end of the hydraulic cylinder 106 is connected to the inner shaft 1022. The spring 1023 is U-shaped. One end of the spring 1023 is fixedly connected to the inner shaft 1022 by welding, bonding, or screwing, and the other end of the spring 1023 can slide and press against the inner shaft 1022. When the protrusion of the spring 1023 contacts the inner end of the locking block 1024, the spring 1023 can lift the locking block 1024.

[0043] Specifically, in the case of a non-deflected rotating ring assembly 103, its slot 1033 is directly opposite the locking block 1024. When the spring 1023 lifts the locking block 1024, the outer end of the locking block 1024 can be inserted into the slot 1033, thereby fixing the rotating ring assembly 103. In the case of a rotating ring assembly 103 that deflects due to supporting the derrick, its slot 1033 is misaligned with the locking block 1024. When the spring 1023 lifts the locking block 1024, the outer end of the locking block 1024 cannot be inserted into the slot 1033. The outer end of the locking block 1024 can only slide in contact with the inner wall of the inner ring 1032, and cannot fix the rotating ring assembly 103. The deflected rotating ring assembly 103 can still rotate.

[0044] Furthermore, a spring 1025 is provided between the locking block 1024 and the outer shaft 1021. The spring 1025 can reset the locking block 1024 into the outer shaft 1021. When the protrusion of the spring 1023 disengages from the inner end of the locking block 1024, the spring 1025 can reset the locking block 1024 into the outer shaft 1021, and the outer end of the locking block 1024 can be completely retracted into the outer shaft 1021.

[0045] Specifically, the design of the locking block 1024 and the locking slot 1033 allows the rotating ring assembly 103 that has not deflected to remain in a fixed position, while those rotating ring assemblies 103 that have deflected due to supporting the derrick are not locked. This design enables the rotating ring assembly 103 supporting the derrick to adaptively adjust its deflection angle to adapt to the tilt of the derrick. At the same time, a certain height difference is always maintained between the outer periphery of the rotating ring assembly 103 supporting the derrick and the outer periphery of the adjacent unsupported rotating ring assembly 103, and this height difference acts as a limit. Thus, lateral slippage of the derrick can be effectively prevented throughout the entire process of raising and lowering the derrick.

[0046] Furthermore, a rope hole 1038 is provided on the ring body 1031, and a pull rope 104 is threaded through the rope hole 1038. The pull rope 104 passes through the rope holes 1038 of all the ring bodies 1031 in sequence and is connected to the pull-wire displacement sensor 105.

[0047] Specifically, whether the swivel assembly 103 has deflected can be determined by monitoring the change in the length of the pull rope 104. When pressure is applied to the swivel assembly 103 by the derrick, if the pull rope displacement sensor 105 detects that the length of the pull rope 104 has not increased, this indicates that the swivel assembly 103 has not deflected, and therefore the height difference required to limit the derrick's lateral slippage has not been formed. In this situation, there is a risk of lateral slippage of the derrick. Once the pull rope displacement sensor 105 detects this situation, it will immediately issue an alarm signal to alert relevant personnel.

[0048] Furthermore, the wire-type displacement sensor 105 can not only detect the length of the pull rope 104, but also has the function of automatically straightening the pull rope 104. When the derrick is separated from the rotating ring assembly 103, the wire-type displacement sensor 105 can automatically guide the rotating ring assembly 103 to reset by straightening the pull rope 104. Each rotating ring assembly 103 can automatically reset to a level state, eliminating the height difference between them, which is convenient for subsequent use.

[0049] Furthermore, a magnet 1039 is provided on the ring body 1031, and the magnets 1039 of adjacent ring bodies 1031 repel each other. This design helps to maintain the spacing and relative position between the ring bodies 1031, avoids contact and friction between adjacent rotating ring assemblies 103, and makes the rotation of the rotating ring assemblies 103 smoother and more independent, without interference between them.

[0050] Furthermore, the sliding sleeve 1034 and the ring body 1031 are connected by a bearing bush 1035, and the inner ring 1032 and the support shaft assembly 102 are connected by a bearing 1036. The bearing bush 1035 reduces the friction between the sliding sleeve 1034 and the ring body 1031, making their relative rotation smoother. The bearing 1036 reduces the friction between the inner ring 1032 and the support shaft assembly 102, making their relative rotation smoother. In this embodiment, the bearing 1036 is a roller bearing, which has a greater radial load capacity.

[0051] Example 2:

[0052] Reference Figure 9 This embodiment adds a lifting part 2, a frame 3, and a moving part 4 to the original embodiment for supporting the derrick during the assembly and disassembly process, as detailed below.

[0053] The support frame 101 is fixedly mounted on the upper end of the lifting unit 2. The lifting unit 2 is mounted on the frame 3 in a height-adjustable manner, and a movable part 4 is provided at the lower end of the frame 3. A hydraulic cylinder for driving the movable part 4 to move up and down is provided between the movable part 4 and the frame 3. The movable part 4 adopts a tracked moving mechanism.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 side slipping prevention device for dismounting a derrick, characterized in that, The utility model relates to a kind of anti-skid devices for derrick dismounting, comprising: Support shaft assembly (102); Support frame (101) is fixedly arranged at both ends of the support shaft assembly (102); Swivel assembly (103), several swivel assemblies (103) are rotatably arranged on the support shaft assembly (102); The swivel assembly (103) comprises: Ring body (1031); Inner ring (1032) is arranged on the ring body (1031), and the inner ring (1032) is rotatably arranged on the support shaft assembly (102); Sliding sleeve (1034) is rotatably arranged on the outer peripheral wall of the ring body (1031), and the axis of the inner ring (1032) and the axis of the outer peripheral wall of the ring body (1031) are eccentric.

2. The anti-skid device for derrick dismounting according to claim 1, wherein: The axis of the inner ring (1032) is below the axis of the outer peripheral wall of the ring body (1031), and the center of gravity of the ring body (1031) is below the axis of the inner ring (1032).

3. The anti-skid device for derrick dismounting according to claim 1, wherein: The ring body (1031) is provided with a cavity (1037), and the cavity (1037) is above the inner ring (1032).

4. The anti-skid device for derrick dismounting according to claim 1, wherein: The inner ring (1032) is provided with a clamping groove (1033); The support shaft assembly (102) comprises: Outer shaft (1021), the support frame (101) is fixedly arranged at both ends of the outer shaft (1021), and the inner ring (1032) is rotatably arranged on the outer shaft (1021); Clamping block (1024) is arranged on the outer shaft (1021) in a lifting manner; Inner shaft (1022) is movably arranged in the inner portion of the outer shaft (1021), and the inner shaft (1022) is driven by an oil cylinder (106); Spring piece (1023) is arranged on the inner shaft (1022) in a outwardly protruding manner, the inner shaft (1022) can selectively push the spring piece (1023) into the bottom of the clamping block (1024), and the spring piece (1023) can push the clamping block (1024) into the clamping groove (1033).

5. The anti-skid device for derrick dismounting according to claim 4, wherein: A spring (1025) is arranged between the clamping block (1024) and the outer shaft (1021), and the spring (1025) can reset the clamping block (1024) into the outer shaft (1021).

6. The anti-skid device for derrick dismounting according to claim 1, wherein: A rope passing hole (1038) is formed in the ring body (1031), a pull rope (104) is arranged in the rope passing hole (1038), and the pull rope (104) passes through the rope passing hole (1038) of the ring body (1031) in sequence and is connected with a pull wire type displacement sensor (105).

7. The anti-skid device for dismounting the derrick according to claim 1, wherein a magnet (1039) is arranged on the ring body (1031), and the magnets (1039) of adjacent ring bodies (1031) repel each other.

8. The anti-skid device for dismounting the derrick according to claim 1, wherein the sliding sleeve (1034) and the ring body (1031) are connected through a bearing bush (1035), and the inner ring (1032) and the support shaft assembly (102) are connected through a bearing (1036).

9. The anti-skid device for dismounting the derrick according to claim 1, wherein the support frame (101) is fixedly arranged at the upper end of a lifting part (2); the lifting part (2) is arranged on a rack (3) in a lifting manner, and the lower end of the rack (3) is provided with a moving part (4). ​ ​ ​ ​

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