Lifting structure and power catwalk

Abstract

The utility model discloses a lifting structure and a power catwalk, the lifting structure comprises a base, a rotating arm, a sliding structure, a driving mechanism and a lifting mechanism, the rotating arm is hinged to the base; the sliding structure is slidably connected to the rotating arm and used for being connected with the cloud beam. The driving mechanism is installed on the rotating arm, the output end of the driving mechanism is connected with the sliding structure, and the driving mechanism is used for driving the sliding structure to slide in the extending direction of the rotating arm; the lifting end of the lifting mechanism is hinged to the rotating arm and used for driving the rotating arm to rotate around the mounting end. The sliding structure can slide in the extending direction of the rotating arm through the driving mechanism, the cloud beam can adapt to drill floor surfaces of different heights, the sliding structure can extend out of the rotating arm, and the position adjusting range of the cloud beam is not limited by the length of the rotating arm any more; the lifting mechanism is matched with the sliding structure to solve the problems that in the prior art, large lifting force is difficult to process, and the capacity of adapting to drill floor surfaces of different heights is poor, operation difficulty and risks are remarkably reduced, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a lifting structure and a power catwalk. Background Art

[0002] The power catwalk is used to safely and quickly transport various drilling tools (such as drill pipes, drill collars, casing, etc.) to the drill floor or back to the drill pipe rack from the drill floor, which plays an important role in improving the efficiency and safety of drilling operations.

[0003] In the related art, power catwalks are mainly divided into two types: wire rope lifting type and hydraulic cylinder lifting type. Although wire rope lifting type power catwalks are widely used, they are difficult to maintain and require frequent (every few months) replacement of wire ropes, and their stability is poorer than that of hydraulic cylinder lifting type. On the other hand, although the hydraulic cylinder lifting type power catwalk has improved stability, it cannot lift the drill bit to the required position when the lifting force required is large, resulting in its inability to adapt to drilling platforms of different heights, limiting its scope of application and operating efficiency.

[0004] Therefore, due to the differences in drill floor heights for different drilling operations and the different lifting forces required for drill tools of different sizes, the existing power catwalks have limitations in providing large lifting forces and adapting to drill floors of different heights. They cannot adapt to the drilling needs of various drill floor heights, which limits the application scope of the existing power catwalks, makes the on-site operation process cumbersome, and increases additional operating costs. Utility Model Content

[0005] The main purpose of the utility model is to provide a lifting structure and a power catwalk, aiming to solve the technical problem that the power catwalk in the prior art cannot adapt to the drilling requirements of various drilling table heights, resulting in cumbersome on-site operation processes and increased additional operating costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] In a first aspect, the utility model provides a lifting structure, comprising:

[0008] Base;

[0009] A swing arm, wherein two ends of the swing arm along its extension direction are respectively a mounting end and a free end, and the mounting end is hinged to the base;

[0010] A sliding structure, wherein the sliding structure is slidably connected to the swing arm, and the sliding structure is used to connect the cloud beam;

[0011] A driving mechanism, wherein the driving mechanism is mounted on the swing arm, wherein an output end of the driving mechanism is connected to the sliding structure and is used to drive the sliding structure to extend from the swing arm to the outside of the free end along the extension direction of the swing arm, or to retract from the outside of the free end to the inside of the swing arm;

[0012] A lifting mechanism, wherein the lifting end of the lifting mechanism is hinged to the swing arm, and is used to drive the swing arm to rotate upward around the mounting end in a direction away from the base to lift the sliding structure, or to rotate downward in a direction close to the base to pull down the sliding structure.

[0013] In some embodiments, in the above-mentioned lifting structure, the sliding structure includes a slider, a slide rail and a support, the slider is consistent with the extension direction of the swing arm, the output end of the driving mechanism is connected to the slider, the slider is slidably matched with the swing arm through the slide rail, and the slide rail is consistent with the extension direction of the swing arm, the support is connected to the side of the slider away from the swing arm, and the support is used to connect the cloud beam.

[0014] In some embodiments, in the above-mentioned lifting structure, the slider includes a top plate, a bottom plate and two side plates, and the top plate, the bottom plate and the two side plates together form a hollow frame. The side plate slides with the swing arm through the slide rail, and the support is installed at one end of the top plate close to the free end.

[0015] In some embodiments, in the above-mentioned lifting structure, a guide groove with an upward notch is formed on the swing arm, and the guide groove is open at one end located at the free end, and the guide groove is consistent with the extension direction of the swing arm; the slider and the driving mechanism are both accommodated in the guide groove, the driving mechanism is arranged close to the mounting end, and the slider is arranged close to the free end, the slider is slidably matched with the side wall of the guide groove through the slide rail, and the support extends out of the notch.

[0016] In some embodiments, in the above-mentioned lifting structure, the slide rail includes an upper rail and a lower rail, the upper rail and the lower rail are both consistent with the extension direction of the swing arm, the upper rail and the lower rail are arranged on the same side and are both connected to the slider, and the upper rail and the lower rail are spaced to form a slide groove; the groove side walls of the guide groove are installed with multiple roller groups for rolling cooperation with the slide groove, and the multiple roller groups are spaced along the extension direction of the swing arm.

[0017] In some embodiments, in the above-mentioned lifting structure, the roller group includes at least three rollers, and the slide groove rolls with at least one of the roller groups.

[0018] In some embodiments, in the above-mentioned lifting structure, the roller includes an outer wheel, a wheel seat and an inner wheel, the wheel seat is installed on the groove side wall of the guide groove, the outer wheel frame is arranged outside the wheel seat and is rotatably connected to the wheel seat through a rotating shaft, and the rotating shaft is perpendicular to the groove side wall of the guide groove; the wheel seat is formed with a notch on the side of the groove side wall of the guide groove facing the installation groove in the guide groove, and the inner wheel is rotatably connected to the installation groove through an installation shaft, and the installation shaft is perpendicular to the groove bottom wall of the guide groove.

[0019] In some embodiments, in the above-mentioned lifting structure, the driving mechanism includes a telescopic driving member and a connecting member, the telescopic driving member is installed at a position of the rotary arm close to the mounting end, the telescopic shaft of the telescopic driving member forms the output end, and the output end is connected to the sliding structure through the connecting member.

[0020] In some embodiments, in the above-mentioned lifting structure, the lifting mechanism includes a mounting seat and two lifting driving members, the mounting seat is connected to the position of the swing arm close to the mounting end, and the two lifting driving members are spaced apart on opposite sides of the swing arm; the lifting driving member is hinged to the base, and the output shaft of the lifting driving member forms the lifting end.

[0021] In a second aspect, the utility model provides a powered catwalk, using the lifting structure as described above.

[0022] The above one or more technical solutions provided by the present utility model may have the following advantages or at least achieve the following technical effects:

[0023] The utility model proposes a lifting structure and a power catwalk, which provide a stable support for the lifting of the cloud beam through a base, and utilize a swing arm and a sliding structure slidably connected thereto to make the lifting process and position adjustment of the cloud beam smoother and more precise. The driving mechanism enables the sliding structure to extend from the inside of the swing arm to the outside of the free end, or to retract from the outside of the free end into the swing arm along the extension direction of the swing arm, and can adjust the height of the cloud beam multiple times, so that the cloud beam can adapt to drilling platforms of different heights, thereby improving the operational flexibility and applicable scope of the operation process, and the sliding structure can extend from the free end of the swing arm, so that the position adjustment range of the cloud beam is no longer limited by the length of the swing arm, thereby improving the transportation capacity. In addition, the lifting mechanism cooperates with the sliding structure to optimize the distribution of the lifting force, effectively reducing the force required in the lifting process, solving the problems of difficulty in handling large lifting forces and poor ability to adapt to drilling platforms of different heights in the prior art, significantly reducing the difficulty and risk of operation, improving the operation efficiency, and realizing the dual requirements of equipment applicability and safety in oil and gas drilling operations. In addition, the lifting structure has a simple structure and is easy to repair, thereby reducing the maintenance frequency and operation difficulty of the equipment and reducing the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 This is a structural schematic diagram of a lifting structure in one embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a lifting mechanism involved in one embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of a sliding structure involved in an embodiment of the utility model being inside a rotary arm;

[0028] Figure 4 It is a structural schematic diagram of a sliding structure involved in an embodiment of the utility model when it extends out of the free end;

[0029] Figure 5 It is a structural schematic diagram of a sliding structure involved in an embodiment of the utility model;

[0030] Figure 6 It is a schematic diagram of the assembly structure of the rotary arm and the sliding structure involved in one embodiment of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a roller involved in an embodiment of the utility model;

[0032] Figure 8 It is a structural schematic diagram of a power catwalk in one embodiment of the utility model.

[0033] Description of Figure Numbers:

[0034]

[0035]

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that in the embodiments of the present utility model, all directional indications (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present utility model, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "includes..." does not exclude the presence of other identical elements in the process, method, article or system including the element. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms "connection", "fixed" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between the two elements.

[0041] In the present invention, if there is a description involving "first", "second", etc., the description of "first", "second", etc. is only used for descriptive purposes and cannot be understood as indicating or implying its relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0042] In the present invention, suffixes such as "module", "assembly", "part", "component" or "unit" used to represent elements are used only to facilitate the description of the present invention and have no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0043] For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances. In addition, the technical solutions of various embodiments can be combined with each other, but this is based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0044] The technical concept of the present utility model is further described below in conjunction with some specific implementation methods.

[0045] The utility model provides a lifting structure and a power catwalk.

[0046] Reference Figures 1 to 6 , an embodiment of the utility model provides a lifting structure.

[0047] The lifting structure includes a base 100, a swing arm 200, a sliding structure 300, a driving mechanism 400 and a lifting mechanism 500. The two ends of the swing arm 200 along its extension direction are respectively a mounting end 210 and a free end 220. The mounting end 210 is hinged to the base 100. The sliding structure 300 is slidably connected to the swing arm 200, and the sliding structure 300 is used to connect the cloud beam 700. The driving mechanism 400 is installed on the swing arm 200, and the output end 410 of the driving mechanism 400 is connected to the sliding structure 300. The lifting mechanism 500 is connected to the swing arm 200 and is used to drive the sliding structure 300 to extend from the free end 220 in the extension direction of the swing arm 200, or to retract from the free end 220 into the swing arm 200; the lifting end of the lifting mechanism 500 is hinged to the swing arm 200, and is used to drive the swing arm 200 to rotate upward around the mounting end 210 in the direction away from the base 100 to lift the sliding structure 300, or to rotate downward in the direction close to the base 100 to pull down the sliding structure 300.

[0048] It should be noted that an activity space is formed inside the swing arm 200. When the output end 410 of the driving mechanism 400 drives the sliding structure 300 to slide along the extension direction of the swing arm 200, the sliding structure 300 can slide from the swing arm 200 to the outside of the free end 220 through the activity space. The activity space provides the sliding structure 300 with a variety of optional stop positions, so that the cloud beam 700 connected to the sliding structure 300 can adapt to different usage height requirements, thereby improving the application range of the lifting structure.

[0049] As an optional implementation of this embodiment, first, the driving mechanism 400 is used to initially drive the sliding structure 300 to slide along the extension direction of the swing arm 200, and the sliding structure 300 is stopped in the activity space or outside the free end 220, so that the cloud beam 700 connected to the sliding structure 300 is lowered or lifted to a required position;

[0050] Then, if the position of the cloud beam 700 needs to be adjusted, the lifting mechanism 500 is used to drive the swing arm 200 to rotate upward around the mounting end 210 in a direction away from the base 100 to lift the sliding structure 300, or to rotate downward in a direction close to the base 100 to lower the sliding structure 300, and accordingly the sliding structure 300 is lifted or lowered relative to the base 100 along with the swing arm 200, and the cloud beam 700 connected to the sliding structure 300 is driven to be lowered or lifted to another required position;

[0051] Thereafter, if the position of the cloud beam 700 still needs to be adjusted, the driving mechanism 400 is used to drive the sliding structure 300 to slide along the extension direction of the swing arm 200 again, and the sliding structure 300 is stopped in the activity space or outside the free end 220, so that the cloud beam 700 connected to the sliding structure 300 is lowered or lifted to another required position, so that the height of the cloud beam 700 can be adjusted multiple times, so that the cloud beam 700 can adapt to drilling platforms of different heights, thereby improving the applicability of the cloud beam 700.

[0052] During implementation, the lifting structure drives the sliding structure 300 to move along the extension direction of the swing arm 200 through the driving mechanism 400, and can accurately adjust the height and position of the cloud beam 700, which not only speeds up the operation process, but also reduces repeated operations caused by improper position adjustment, thereby significantly improving the operation efficiency and accuracy.

[0053] The swing arm 200 of the lifting structure ensures that the lifting structure has stable support. Under the limiting effect of the swing arm 200, the sliding structure 300 can slide smoothly in the extension direction of the swing arm 200, reducing the vibration and impact generated by the cloud beam 700 during operation and reducing operation risks.

[0054] The lifting structure can adjust the angle of the swing arm 200 relative to the base 100 through the lifting mechanism 500 to adjust the position of the sliding structure 300 relative to the base 100, thereby adapting to the working requirements of different heights and positions. Whether it is on a drilling platform at different heights or when it is necessary to lift Yunliang 700 of different sizes and weights, it has adaptability and flexibility to meet a wide range of working environments and working requirements.

[0055] Through the mechanized driving mechanism 400 and the lifting mechanism 500, the lifting structure enables the operator to more easily control the lifting and lowering of the cloud beam 700 and accurately adjust the position of the cloud beam 700, thereby reducing the labor intensity of the operators and improving the accuracy and controllability of the drilling operation, thereby reducing the difficulty of operation and the possibility of human error.

[0056] The lifting structure is connected to the cloud beam 700 through the sliding structure 300, which optimizes the distribution of the required lifting force and reduces the lifting force required during operation. Specifically, when the required lifting force is large, the sliding structure 300 is driven to a position corresponding to the lifting rotation point in the activity space, and the lifting force is reduced by moving the center of gravity forward; the lifting structure adjusts the position of the sliding structure 300 relative to the swing arm 200 or the base 100 to adapt to drilling platforms of different heights and reduce the lifting force of the lifting cylinder, thereby enhancing the versatility of the lifting structure and reducing operating costs.

[0057] It should be understood that the base 100, as the supporting base of the entire lifting structure, ensures the stability of the sliding structure 300 when it moves along the swing arm 200 when driven by the driving mechanism 400, and ensures the stability of the swing arm 200 when it rotates around the mounting end 210 when driven by the lifting mechanism 500, thereby improving the reliability of the lifting structure; the swing arm 200 not only provides support for the lifting mechanism 500, but also provides a limiting basis for the sliding process of the sliding structure 300, so that the sliding process of the sliding structure 300 is easier to control; the driving mechanism 400 drives the sliding structure 300 to move along the extension direction of the swing arm 200, and can extend the sliding structure 300 out of the free end 220 of the swing arm 200 or retract it into the swing arm 200 according to actual operation requirements, so as to flexibly adjust the position of the cloud beam 700 to adapt to the variable drilling table height.

[0058] As another optional implementation of the present embodiment, in order to integrate the control pipelines of the lifting structure, the lifting structure also includes a drag chain, which lies on its side in the swing arm 200, thereby reducing the occupation of the control pipelines and the drag chain on the bearing area of ​​the swing arm 200, and one end of the drag chain is connected to the sliding structure 300, and one end of the drag chain is fixed on the swing arm 200, so that one end of the drag chain on the sliding structure 300 can move with the sliding structure 300.

[0059] The technical solution of the utility model provides a stable support for the lifting of the cloud beam 700 through the base 100, and uses the swing arm 200 and the sliding structure 300 slidably connected thereto to make the lifting process and position adjustment of the cloud beam 700 more stable and accurate. The driving mechanism 400 enables the sliding structure 300 to extend from the inside of the swing arm 200 to the outside of the free end 220 along the extension direction of the swing arm 200, or to retract from the outside of the free end 220 to the inside of the swing arm 200, so that the height of the cloud beam 700 can be adjusted multiple times, so that the cloud beam 700 can adapt to drilling platforms of different heights, thereby improving the operational flexibility and scope of application of the operation process. In addition, the sliding structure 300 can extend from the free end 220 By extending the swing arm 200, the position adjustment range of the cloud beam 700 is no longer limited by the length of the swing arm 200, thereby improving the transportation capacity. In addition, the lifting mechanism 500 cooperates with the sliding structure 300 to optimize the distribution of the lifting force, effectively reducing the force required in the lifting process, and solving the problems of difficulty in handling large lifting forces and poor ability to adapt to drilling surfaces of different heights in the prior art. It significantly reduces the difficulty and risk of operations, improves operating efficiency, and realizes the dual requirements of equipment applicability and safety in oil and gas drilling operations. In addition, the lifting structure has a simple structure and is easy to maintain, which reduces the maintenance frequency and operating difficulty of the equipment and reduces operating costs.

[0060] In one embodiment, referring to Figures 2 to 6 The sliding structure 300 includes a slider 310, a slide rail 320 and a support 330. The slider 310 is consistent with the extension direction of the swing arm 200. The output end 410 of the driving mechanism 400 is connected to the slider 310. The slider 310 slides with the swing arm 200 through the slide rail 320, and the slide rail 320 is consistent with the extension direction of the swing arm 200. The support 330 is connected to the side of the slider 310 away from the swing arm 200, and the support 330 is used to connect the cloud beam 700.

[0061] As an optional implementation of this embodiment, in order to ensure the stability of the slider 310 when sliding along the extension direction of the swing arm 200 and improve the control ability of the cloud beam 700, there are two slide rails 320, and the two slide rails 320 are connected to the opposite sides of the slider 310 at intervals, reducing the possibility of the slider 310 driving the cloud beam 700 to swing and deflect, thereby improving the operating accuracy and safety of the entire lifting structure.

[0062] It should be understood that the slider 310 is limitedly connected to the swing arm 200 by the slide rail 320, which ensures that the slider 310 slides smoothly on the swing arm 200 and makes the slider 310 have a precise moving trajectory to improve the control accuracy of the lifting and lowering of the cloud beam 700.

[0063] In one embodiment, referring to Figure 5The slider 310 includes a top plate 311, a bottom plate 312 and two side plates 313. The top plate 311, the bottom plate 312 and the two side plates 313 together form a hollow frame. The side plates 313 slide with the swing arm 200 through the slide rail 320, and the support 330 is installed at one end of the top plate 311 close to the free end 220.

[0064] It should be understood that the slider 310 is a hollow frame formed by the close combination of the top plate 311, the bottom plate 312 and the two side plates 313, which greatly enhances the slider 310's anti-twisting and anti-deformation capabilities, so that the slider 310 can remain stable during the process of the slider 310 driving the cloud beam 700 to move, thereby reducing the failure rate of the lifting structure. The side plates 313 of the slider 310 are limited to the swing arm 200 by the slide rails 320, so that the slider 310 can move more smoothly during the sliding process along the extension direction of the swing arm 200, thereby improving the lifting efficiency and operation safety of the cloud beam 700. The support 330 is installed at one end of the top plate 311 close to the free end 220, so that the slider 310 can distribute the load more flexibly when driving the cloud beam 700 to rise and fall, thereby improving the overall bearing capacity of the lifting structure, thereby allowing the equipment to transport heavier drilling tools and increasing the application range of the equipment.

[0065] In one embodiment, referring to Figure 5 A plurality of first weight-reducing holes 301 are formed on the top plate 311 , and the plurality of first weight-reducing holes 301 are arranged at intervals along the extension direction of the swing arm 200 ; a plurality of second weight-reducing holes 302 are formed on the bottom plate 312 , and the plurality of second weight-reducing holes 302 are arranged at intervals along the extension direction of the swing arm 200 .

[0066] It should be understood that by forming a plurality of first weight-reducing holes 301 and second weight-reducing holes 302 arranged at intervals on the top plate 311 and the bottom plate 312, while ensuring that the top plate 311 and the bottom plate 312 have sufficient bearing strength, the weight of the top plate 311 and the bottom plate 312 themselves is effectively reduced, thereby further reducing the demand for lifting force, improving the operating efficiency of the lifting structure, reducing energy consumption, and reducing operating costs.

[0067] In one embodiment, referring to Figure 6 A guide groove 201 with a notch 202 facing upward is formed on the swing arm 200, and one end of the guide groove 201 located at the free end 220 is open 203, and the guide groove 201 is consistent with the extension direction of the swing arm 200; the slider 310 and the driving mechanism 400 are both accommodated in the guide groove 201, the driving mechanism 400 is arranged close to the mounting end 210, and the slider 310 is arranged close to the free end 220, the slider 310 is slidably matched with the groove side wall of the guide groove 201 through the slide rail 320, and the support 330 extends out of the notch 202.

[0068] It should be noted that, since the swing arm 200 has the opening 203 and the notch 202, the swing arm 200 has a simple structure, is easy to manufacture and maintain, and reduces the operating cost. The opening 203 provides a basis for the sliding structure 300 to extend the free end 220, so that the sliding structure 300 can extend the free end 220 from the opening 203, thereby increasing the transportation capacity of the lifting structure.

[0069] It should be understood that the lifting structure, by accommodating the slider 310 and the driving mechanism 400 in the guide groove 201 of the swing arm 200, not only ensures the installation stability of the slider 310 and the driving mechanism 400, but also facilitates the assembly, disassembly or maintenance of the slider 310 and the driving mechanism 400, thereby reducing the operating difficulty and maintenance cost.

[0070] In one embodiment, referring to Figure 5 The slide rail 320 includes an upper rail 321 and a lower rail 322, and the upper rail 321 and the lower rail 322 are both consistent with the extension direction of the swing arm 200. The upper rail 321 and the lower rail 322 are arranged on the same side and are both connected to the slider 310. The upper rail 321 and the lower rail 322 are spaced apart to form a slide groove 303; the groove side wall of the guide groove 201 is installed with a plurality of roller groups for rolling cooperation with the slide groove 303, and the plurality of roller groups are spaced apart along the extension direction of the swing arm 200.

[0071] It should be noted that, in order to make the slider 310 more stable during the sliding process along the extending direction of the swing arm 200 , the width of the slide groove 303 is adapted to the diameter of the roller 600 .

[0072] It should be understood that the cooperation between the roller group and the slide groove 303 limits the horizontal shaking of the slide rail 320 in the guide groove 201, and the horizontal direction is perpendicular to the extension direction of the swing arm 200; and the roller group also limits the vertical shaking of the slide rail 320 in the guide groove 201, and the vertical direction is perpendicular to the extension direction of the swing arm 200.

[0073] When using the lifting structure to transport drilling tools, the use of roller groups can reduce the shaking of the equipment during operation, which not only improves the safety of the operation, but also makes the transportation process of the drilling tools smoother and faster, reduces the risk of damage to the drilling tools during transportation, and also speeds up the speed of the drilling tools reaching the drilling table or returning to the drill pipe rack, thereby improving the operation efficiency.

[0074] In one embodiment, referring to Figures 1 to 4 The roller group includes at least three rollers 600, and the slide groove 303 rolls with at least one roller group.

[0075] It should be noted that in order to ensure that the slider 310 still has a stable limiting connection relationship with the swing arm 200 when extending out of the free end 220, and further ensure that the slider 310 has stability when sliding along the extension direction of the swing arm 200, at least three rollers 600 of the slider 310 are always located in the slide groove 303 of the slide rail 320 during the sliding process.

[0076] It should be understood that when transporting drilling tools, multiple rollers 600 are evenly distributed in the slide groove 303, providing more balanced support for the slider 310, reducing the vibration and shaking generated during the operation of the equipment, and making the slider 310 more stable in the process of sliding along the extension direction of the arm 200, thereby improving work efficiency and enhancing work safety.

[0077] In one embodiment, referring to Figure 7 The roller 600 includes an outer wheel 610, a wheel seat 620 and an inner wheel. The wheel seat 620 is installed on the groove side wall of the guide groove 201. The outer wheel 610 is framed outside the wheel seat 620 and is rotatably connected to the wheel seat 620 through a rotating shaft, and the rotating shaft is perpendicular to the groove side wall of the guide groove 201; a notch 202 is formed on the side of the groove side wall of the guide groove 201 facing the installation groove 621 in the guide groove 201, and the inner wheel is rotatably connected to the installation groove 621 through a mounting shaft, and the mounting shaft is perpendicular to the groove bottom wall of the guide groove 201.

[0078] It should be noted that the orthographic projection of the rotating shaft on the groove side wall of the guide groove 201 and the orthographic projection of the mounting shaft on the groove side wall of the guide groove 201 are perpendicular to each other.

[0079] It should be understood that, when the slider 310 slides along the extension direction of the swing arm 200, the outer wheel 610 rotates around the rotating axis and contacts the slide rail 320, and under the joint limiting action of the upper rail and the lower rail, the outer wheel 610 is restricted in the slide groove 303, and, when the slider 310 slides along the extension direction of the swing arm 200, the inner wheel rotates around the mounting axis and contacts the side wall of the slider 310 located between the upper rail and the lower rail. The cooperation between the outer wheel 610 and the inner wheel enables the roller 600 to provide stable support for the sliding of the slider 310 in both the horizontal and vertical directions, reducing the vibration and instability of the slider 310 during the sliding process, while providing implementation conditions for the slider 310 to extend from the free end 220 of the swing arm 200 along the extension direction of the swing arm 200, ensuring that the sliding structure 300 can remain stable even under high load or high speed, reducing the risk of accidents caused by equipment failure or operating errors.

[0080] As an optional implementation of this embodiment, in order to further ensure that the slider 310 has sufficient structural strength when it extends from the free end 220 of the rotating arm 200 along the extension direction of the rotating arm 200, an intermediate track is also provided on the side wall of the slider 310 between the upper track and the lower track, and the intermediate track is slidably matched with the inner wheel.

[0081] In one embodiment, referring to Figure 3 The driving mechanism 400 includes a telescopic driving member 420 and a connecting member 430. The telescopic driving member 420 is installed at a position of the swing arm 200 close to the mounting end 210. The telescopic shaft of the telescopic driving member 420 is formed with an output end 410, and the output end is connected to the sliding structure 300 through the connecting member 430.

[0082] It should be noted that the telescopic driving member 420 can be a power cylinder in the prior art.

[0083] It should be understood that in order to ensure that the slider 310 is subjected to balanced force when driven by the telescopic drive member 420 and can drive the slider 310 to move in the continuous direction of the roller 600, the output end of the telescopic drive member 420 is connected to the middle position of the slider 310 through the connecting member 430, so as to reduce the wear of the slider 310 during the operation of the equipment, and also ensure that the slider 310 can move smoothly along the extension direction of the swing arm 200, thereby driving the safe and efficient transportation of the drilling tools.

[0084] In one embodiment, referring to Figures 1 to 4 The lifting mechanism 500 includes a mounting base 510 and two lifting driving members 520. The mounting base 510 is connected to the position of the swing arm 200 close to the mounting end 210. The two lifting driving members 520 are spaced apart and arranged on opposite sides of the swing arm 200. The lifting driving member 520 is hinged to the base 100, and the output shaft of the lifting driving member 520 forms a lifting end.

[0085] It should be noted that the lifting drive member 520 can be a power cylinder in the prior art.

[0086] It should be understood that by configuring two lifting drive members 520 on opposite sides of the rotary arm 200 , greater power is provided to the rotary arm 200 , while the rotary arm 200 has higher stability when rotating around the mounting end 210 .

[0087] As an optional implementation of this embodiment, each lifting drive member 520 can work independently and provide power at the same time, which helps to balance the load, so that the lifting structure has operational flexibility and wide applicability. Specifically, the two lifting drive members 520 are respectively arranged on opposite sides of the swing arm 200, which not only provides the cloud beam 700 with the power required to transport the drilling tools, but also enhances the stability of the overall structure by dispersing the power points, reduces the swaying and vibration of the cloud beam 700 during the lifting process, and reduces the safety risks during the operation process.

[0088] In addition, continue to refer to Figures 1 to 6 , and refer to Figure 8 Based on the same technical concept, the embodiment of the utility model also provides a power catwalk.

[0089] The powered catwalk uses the lifting structure as in the above-mentioned embodiment.

[0090] It should be noted that the power catwalk can be a power catwalk with a ramp in the prior art, one end of the cloud beam 700 is hinged to the sliding structure 300, and the other end of the cloud beam 700 is slidably connected to the ramp.

[0091] During implementation, when the power catwalk is in the starting position, the output end 410 of the driving mechanism 400 is fully extended to the limit position, so that the sliding structure 300 extends out of the free end 220, and the lifting end of the lifting mechanism 500 is fully retracted;

[0092] When the power catwalk is working, the output end 410 of the driving mechanism 400 is controlled to retract to drive the sliding structure 300 to retract from the free end 220 to the swing arm 200, and drive the cloud beam 700 hinged to the sliding structure 300 to move. At this time, the cloud beam 700 connected to the ramp rises along the extension direction of the ramp to achieve the first lifting of the cloud beam 700; during the first lifting process of the cloud beam 700, the center of gravity of the cloud beam 700 moves forward, which reduces the lifting force required to be provided by the driving mechanism 400. Under the same load-bearing condition, a driving mechanism 400 with smaller power can be selected to save production costs;

[0093] Then, if the position of the cloud beam 700 needs to be adjusted again, the lifting mechanism 500 can be controlled to drive the swing arm 200 to rotate upward around its mounting end 210 in a direction away from the base 100 to lift the sliding structure 300 and drive the cloud beam 700 to achieve a second lifting;

[0094] In addition, after the swing arm 200 is lifted to the preset position, it can be extended or retracted again by controlling the output end 410 of the driving mechanism 400 to stop the sliding structure 300 at the limit position outside the activity space or the free end 220, thereby driving the cloud beam 700 to achieve a third lifting or lowering, thereby ensuring that the power catwalk can adapt to drilling tables of different heights, thereby improving the adaptability and versatility of the power catwalk to the production site.

[0095] It should be understood that the specific structure of the lifting structure refers to the above-mentioned embodiments. Since the power catwalk adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0096] Finally, it should be noted that the serial numbers of the above embodiments of the utility model are only for description and do not represent the advantages and disadvantages of the embodiments. The above embodiments are only optional embodiments of the utility model, and do not limit the patent scope of the utility model. All equivalent structures or equivalent process changes made by using the contents of the utility model specification and drawings under the technical concept of the utility model, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the utility model.

Claims

1. A lifting structure, characterized in that: include: Base; A swing arm, wherein two ends of the swing arm along its extension direction are respectively a mounting end and a free end, and the mounting end is hinged to the base; A sliding structure, wherein the sliding structure is slidably connected to the swing arm, and the sliding structure is used to connect the cloud beam; A driving mechanism, wherein the driving mechanism is mounted on the swing arm, wherein an output end of the driving mechanism is connected to the sliding structure and is used to drive the sliding structure to extend from the swing arm to the outside of the free end along the extension direction of the swing arm, or to retract from the outside of the free end to the inside of the swing arm; A lifting mechanism, wherein the lifting end of the lifting mechanism is hinged to the swing arm, and is used to drive the swing arm to rotate upward around the mounting end in a direction away from the base to lift the sliding structure, or to rotate downward in a direction close to the base to pull down the sliding structure.

2. The lifting structure according to claim 1, characterized in that: The sliding structure includes a slider, a slide rail and a support. The slider is consistent with the extension direction of the swing arm. The output end of the driving mechanism is connected to the slider. The slider is slidably matched with the swing arm through the slide rail, and the slide rail is consistent with the extension direction of the swing arm. The support is connected to the side of the slider away from the swing arm, and the support is used to connect the cloud beam.

3. The lifting structure according to claim 2, characterized in that: The slider includes a top plate, a bottom plate and two side plates, which together form a hollow frame. The side plates are slidably matched with the swing arm through the slide rails, and the support is installed at one end of the top plate close to the free end.

4. The lifting structure according to claim 3, characterized in that: A guide groove with an upward notch is formed on the swing arm, and the guide groove is open at one end located at the free end, and the guide groove is consistent with the extension direction of the swing arm; the slider and the driving mechanism are both accommodated in the guide groove, the driving mechanism is arranged close to the mounting end, and the slider is arranged close to the free end, the slider is slidably matched with the side wall of the guide groove through the slide rail, and the support extends out of the notch.

5. The lifting structure according to claim 4, characterized in that: The slide rail includes an upper rail and a lower rail, and the upper rail and the lower rail are both consistent with the extension direction of the swing arm. The upper rail and the lower rail are arranged on the same side and are both connected to the slider, and the upper rail and the lower rail are spaced to form a slide groove; the groove side wall of the guide groove is installed with a plurality of roller groups for rolling cooperation with the slide groove, and the plurality of roller groups are spaced along the extension direction of the swing arm.

6. The lifting structure according to claim 5, characterized in that: The roller group includes at least three rollers, and the slide groove is in rolling cooperation with at least one of the roller groups.

7. The lifting structure according to claim 6, characterized in that: The roller includes an outer wheel, a wheel seat and an inner wheel, the wheel seat is installed on the groove side wall of the guide groove, the outer wheel frame is arranged outside the wheel seat and is rotatably connected to the wheel seat through a rotating shaft, and the rotating shaft is perpendicular to the groove side wall of the guide groove; a notch is formed on the side of the groove side wall of the guide groove facing the mounting groove in the guide groove, and the inner wheel is rotatably connected to the mounting groove through a mounting shaft, and the mounting shaft is perpendicular to the groove bottom wall of the guide groove.

8. The lifting structure according to any one of claims 1 to 7, characterized in that: The driving mechanism includes a telescopic driving member and a connecting member. The telescopic driving member is installed at a position of the swing arm close to the mounting end. The telescopic shaft of the telescopic driving member forms the output end, and the output end is connected to the sliding structure through the connecting member.

9. The lifting structure according to any one of claims 1 to 7, characterized in that: The lifting mechanism includes a mounting seat and two lifting driving members, the mounting seat is connected to the position of the swing arm close to the mounting end, and the two lifting driving members are arranged at opposite sides of the swing arm at intervals; the lifting driving member is hinged to the base, and the output shaft of the lifting driving member forms the lifting end.

10. A powered catwalk, characterized in that: The lifting structure according to any one of claims 1 to 9 is used.

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