Lifting type power catwalk

Abstract

The invention relates to the technical field of petroleum drilling and production equipment, and provides a lifting type power catwalk which comprises a base. One end of the lifting main arm is hinged with the base; the conveying arm assembly is suitable for conveying the pipe column in the length direction of the conveying arm assembly; the conveying arm assembly is arranged in the length direction of the lifting main arm and is connected to the lifting main arm in a sliding manner, so that the conveying arm assembly can extend out of the other end of the lifting main arm; the driving end of the driving mechanism is connected with the conveying arm assembly, and the driving mechanism is used for driving the conveying arm assembly to slide back and forth along the lifting main arm; the driving end of the lifting mechanism is connected with the lifting main arm, and the lifting mechanism is used for driving the lifting main arm to rotate around the hinge point to ascend or descend. By means of the arrangement, drill floor surfaces with different heights can be adapted on the premise that the catwalk is not moved, the catwalk does not need to be frequently hoisted or the product profile does not need to be increased for adapting to the height change of the drill floor surfaces, the operation intensity is relieved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling equipment, in particular to a lifting type power catwalk. Background Art

[0002] In the field of oil and coalbed methane development, the power catwalk is a common automated equipment used for the upper and lower drilling platforms of pipe strings. By remotely operating the catwalk, the intensity of the operation of raising and lowering the pipe string is reduced, the work efficiency is improved, and the safety risks are effectively reduced.

[0003] However, traditional catwalks still have certain limitations in adapting to different drilling platform heights. In related technologies, in order to make the catwalk adapt to changes in the drilling platform height, it is necessary to frequently hoist the catwalk to adjust the installation distance between the catwalk and the drilling platform or increase the product spectrum, which greatly increases the work intensity and production costs.

[0004] Therefore, how to improve the applicability of catwalks to different drilling platform heights and reduce operating intensity and production costs is an important issue that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a lifting power catwalk to solve the defect that the catwalk in the prior art has poor applicability to drilling tables of different heights. The catwalk can be adapted to drilling tables of different heights without moving the catwalk. There is no need to frequently hoist the catwalk or increase the product spectrum to adapt to changes in the height of the drilling table, thereby reducing the work intensity and the cost.

[0006] The present invention provides a lifting type power catwalk, comprising: Base; A lifting main arm, one end of which is hinged to the base; The conveying arm assembly is suitable for conveying the pipe column along its length direction; the conveying arm assembly is arranged along the length direction of the lifting main arm and is slidably connected to the lifting main arm, so that the conveying arm assembly can extend from the other end of the lifting main arm; A driving mechanism, a driving end of which is connected to the conveying arm assembly and is used to drive the conveying arm assembly to slide back and forth along the lifting main arm; The lifting mechanism has a driving end connected to the lifting main arm and is used to drive the lifting main arm to rotate around a hinge point to lift or lower.

[0007] According to a lifting power catwalk provided by the present invention, the conveying arm assembly comprises: A cloud beam is slidably connected to the lifting main arm, and the other side of the cloud beam relative to the lifting main arm is a support surface, and a V-shaped groove extending along the length direction of the cloud beam for accommodating a pipe column is provided on the support surface; The sliding shoe mechanism comprises a sliding shoe slidably connected to the cloud beam and a driving component for driving the sliding shoe to slide back and forth along the length direction of the cloud beam.

[0008] According to a lifting power catwalk provided by the present invention, the lifting main arm is connected with a composite roller and a supporting roller, and the cloud beam is provided with a first track and a second track extending along its length direction; The composite roller is engaged with the first track to limit the freedom of the cloud beam in the width direction and height direction of the lifting main arm, and the second track is supported on the supporting roller to limit the freedom of the cloud beam in the width direction of the lifting main arm.

[0009] According to a lifting power catwalk provided by the present invention, the cloud beam includes a first section and a second section, and the ends of the first section and the second section are hinged so that the first section and the second section can be relatively folded or unfolded.

[0010] A lifting power catwalk provided according to the present invention further includes a positioning structure for positioning the first section and the second section after they are deployed.

[0011] According to a lifting power catwalk provided by the present invention, the conveying arm assembly further comprises a clamp head device connected to an end of the cloud beam away from the hinge point; The clamp head device comprises: a clamp head capable of opening and closing, a power component for driving the clamp head to open and close, and a lifting member for driving the clamp head to rise and fall.

[0012] According to a lifting power catwalk provided by the present invention, the conveying arm assembly also includes: A push rod mechanism is arranged on both sides of the V-shaped groove in the width direction. The push rod mechanism includes a flap and a first driving member. The flap extends from one side wall of the V-shaped groove to the other side wall. The first driving member is connected to the flap and is used to drive the flap to flip toward the outside of the V-shaped groove.

[0013] According to a lifting power catwalk provided by the present invention, the conveying arm assembly also includes: A blocking rod mechanism is arranged on both sides of the V-shaped groove in the width direction; the blocking rod mechanism includes a blocking rod and a second driving member; the second driving member is connected to the blocking rod and is used to drive the blocking rod to extend out of the supporting surface or retract into the bottom of the cloud beam.

[0014] According to the present invention, a lifting power catwalk further comprises a first upper-throwing drill mechanism disposed on at least one side of the base; the first upper-throwing drill mechanism comprises: A lifting rod structure, comprising a lifting rod and a third driving member; one end of the lifting rod is hinged to the base, and the other end extends out of the base along the width direction of the conveying arm assembly; the third driving member is connected to the lifting rod and is used to drive the lifting rod to swing in the height direction of the base; The rod structure comprises a plurality of rods arranged along the length direction of the base, one end of the rod is connected to the base, the other end extends out of the base along the width direction of the conveying arm assembly, and the rod is inclined toward the bottom of the base.

[0015] A lifting power catwalk provided by the present invention further includes a second upper drilling mechanism disposed on at least one side of the base; the second upper drilling mechanism includes: The feed rod structure comprises a feed rod and a fourth driving member; one end of the feed rod is close to the conveying arm assembly, and the other end extends out of the base along the width direction of the conveying arm assembly; the fourth driving member is connected to the feed rod and is used to drive the feed rod to tilt toward any end of itself; The pipe rack has one end close to the base and connected with one end of the feed rod extending out of the base, and the other end away from the base along the width direction of the base. The pipe rack is connected with a lifting leg for driving the pipe rack to tilt toward either end of itself.

[0016] According to a lifting power catwalk provided by the present invention, a connecting block is provided between the first section of the cloud beam and the second section of the cloud beam, one end of the connecting block is hinged to the first section of the cloud beam, and the other end is hinged to the second section of the cloud beam.

[0017] The lifting power catwalk provided by the present invention can adjust the lifting height of the lifting main arm through the lifting mechanism, and can adjust the distance that the conveying arm assembly extends out of the lifting main arm through the driving mechanism. When the height of the drilling table changes, the lifting height of the lifting main arm and the distance that the conveying arm assembly extends out of the lifting main arm can be adjusted according to the actual construction scene to keep the distance between the front end of the conveying arm assembly and the wellhead unchanged, thereby meeting the operation requirements of drilling tables with different heights in a wide range without adjusting the installation position of the catwalk, reducing the labor intensity of the staff and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a lifting power catwalk provided in an embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the lifting power catwalk provided by an embodiment of the present invention in different working states.

[0021] Figure 3 It is a schematic structural diagram of a lifting main arm provided in an embodiment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of a conveying arm assembly provided in an embodiment of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the cloud beam provided by an embodiment of the present invention.

[0024] Figure 6 It is a structural schematic diagram of a second upper-throwing drill mechanism provided in an embodiment of the present invention.

[0025] Reference numerals: 10. Base; 20. Lifting main arm; 21. Composite roller; 22. Support roller; 30. Conveying arm assembly; 31. Cloud beam; 310. First track; 311. Second track; 312. First section; 313. Second section; 314. Connecting block; 315. First pin hole; 316. Second pin hole; 317. Fixed pin shaft; 32. Slipper mechanism; 33. Push rod mechanism; 330. Flip plate; 34. Bar stopper Structure; 340, stop rod; 35, clamp head device; 40, driving mechanism; 50, lifting mechanism; 51, lower support arm; 52, upper support arm; 53, power part; 61, lifting rod structure; 610, lifting rod; 62, supporting rod structure; 620, supporting rod; 71, rod feeding structure; 710, feeding rod; 711, rod feeding cylinder; 712, rod output cylinder; 72, pipe rack; 720, lifting leg; 721, adjusting roller. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to better understand the lifting power catwalk provided by the present invention, its application background is first introduced. The power catwalk is an important automation tool for the upper and lower drilling platforms of the pipe string, and plays a key role in improving the work efficiency. However, the traditional catwalk still has certain limitations in adapting to the different height directions of the drilling platform. In order to make the catwalk adapt to the changes in the height of the drilling platform, it is necessary to frequently hoist the catwalk to adjust the installation distance between the catwalk and the drilling platform or increase the product spectrum, which greatly increases the work intensity and production cost.

[0028] Therefore, how to improve the applicability of catwalks to different drilling platform heights and reduce operating intensity and production costs is an important issue that needs to be solved urgently.

[0029] In response to the above problems, an embodiment of the present invention provides a lifting power catwalk that can adapt to drilling tables of different heights without moving the catwalk. There is no need to frequently hoist the catwalk or increase the product spectrum to adapt to changes in the height of the drilling table, which reduces work intensity and reduces costs.

[0030] Combine the following Figure 1-Figure 6 The lift-type power catwalk of the present invention is described.

[0031] Reference Figures 1 to 4 A lifting power catwalk comprises a base 10, a lifting main arm 20, a conveying arm assembly 30, a driving mechanism 40 and a lifting mechanism 50; wherein the base 10 constitutes the bottom support of the power catwalk and can provide an installation foundation for various components of the power catwalk; one end of the lifting main arm 20 is hinged to the base 10, so that the lifting main arm 20 can be rotated around the hinge point to be lifted or lowered; the conveying arm assembly 30 is suitable for conveying pipe columns along its own length direction, and the conveying arm assembly 30 is arranged along the length direction of the lifting main arm 20 and is slidably connected to the lifting main arm 20, so that the conveying arm assembly 30 can extend from the other end of the lifting main arm 20; the driving end of the driving mechanism 40 is connected to the conveying arm assembly 30, and is used to drive the conveying arm assembly 30 to slide reciprocatingly along the lifting main arm 20; the driving end of the lifting mechanism 50 is connected to the lifting main arm 20, and is used to drive the lifting main arm 20 to rotate around the hinge point to be lifted or lowered.

[0032] In actual work, the lifting height of the lifting main arm 20 can be adjusted through the lifting mechanism 50, and the distance that the conveying arm assembly 30 extends out of the lifting main arm 20 can be adjusted through the driving mechanism 40. When the height of the drilling platform changes, the lifting height of the lifting main arm 20 and the distance that the conveying arm assembly 30 extends out of the lifting main arm 20 can be adjusted according to the actual construction scene to keep the distance between the front end of the conveying arm assembly 30 and the wellhead unchanged, thereby meeting the operation requirements of drilling platforms of different heights in a wide range without adjusting the installation position of the catwalk, reducing the labor intensity of the staff and reducing costs.

[0033] In some optional embodiments, the specific size specifications of each component in the power catwalk can be adaptively set according to the actual construction scene, and no specific limitation is made in the embodiments of the present invention.

[0034] In one embodiment of the present invention, the base 10 serves as the bearing foundation of the power catwalk, and its overall structure is a rectangular frame, and the lifting main arm 20 is arranged along the length direction of the rectangular frame and is located in the middle of the rectangular frame, so that the rectangular frame forms a platform on both sides of the lifting main arm 20 for the pipe column to enter and exit the conveying arm assembly 30, and the end of the lifting main arm 20 is hinged to the end of the base 10, so that when the lifting main arm 20 rotates around the hinge point, its other end can be lifted or lowered.

[0035] In one embodiment of the present invention, the lifting main arm 20 is a notch structure as a whole, and an end thereof away from the hinge point is provided with an opening. The conveying arm assembly 30 is embedded in the lifting main arm 20 and can be extended from the opening end of the lifting main arm 20 under the drive of the driving mechanism 40.

[0036] In some optional embodiments, the driving mechanism 40 may adopt any form of linear driving element such as a pneumatic cylinder, an oil cylinder, an electric push rod, etc., as long as it can drive the conveying arm assembly 30 to slide back and forth along the length direction of the lifting main arm 20.

[0037] As a specific embodiment of the present invention, the driving mechanism 40 adopts a telescopic cylinder, which is arranged along the length direction of the lifting main arm 20, and its cylinder body is fixedly connected to the lifting main arm 20, and the piston rod is connected to the conveying arm assembly 30.

[0038] In one embodiment of the present invention, the conveying arm assembly 30 includes a cloud beam 31, a sliding shoe mechanism 32, a push rod mechanism 33 and a blocking rod mechanism 34. The cloud beam 31 constitutes the bottom support of the pipe column to be conveyed, and can provide a connection basis for other components of the conveying arm assembly 30; the sliding shoe mechanism 32 is used to push the pipe column on the cloud beam 31 to move along the length direction of the cloud beam 31, so as to realize the conveying of the pipe column; the push rod mechanism 33 and the blocking rod mechanism 34 are both integrated on the cloud beam 31, and the push rod mechanism 33 can be used to push the pipe column out of the cloud beam 31 when the drill is thrown, and the blocking rod mechanism 34 can be used when the drill is up, when the pipe column rolls into the cloud beam 31 from one side, to prevent the impact from being too large and rolling out of the cloud beam 31, and can also play a safety role when the cloud beam 31 is in an inclined state.

[0039] In one embodiment of the present invention, the cloud beam 31 is laid along the length direction of the lifting main arm 20, the bottom of the cloud beam 31 is embedded in the groove of the lifting main arm 20 and is slidably connected to the lifting main arm 20, the piston rod of the telescopic cylinder is fixedly connected to the cloud beam 31, and the other side of the cloud beam 31 relative to the lifting main arm 20, that is, the upper surface, is a supporting surface, and a V-shaped groove extending along the length direction of the cloud beam 31 is provided on the supporting surface for accommodating a pipe column.

[0040] In order to facilitate the sliding connection between the cloud beam 31 and the lifting main arm 20, in one embodiment of the present invention, a composite roller 21 and a support roller 22 are connected to the lifting main arm 20. Specifically, the composite roller 21 and the support roller 22 are both located in the groove of the lifting main arm 20, the composite roller 21 is relatively closer to the hinge point, and the support roller 22 is connected to the other end of the lifting main arm 20 relative to the hinge point, that is, the open end.

[0041] In one embodiment of the present invention, two groups of composite rollers 21 are provided, and the two groups of composite rollers 21 are respectively located on the two inner side walls of the lifting main arm 20, and the multiple composite rollers 21 in each group of composite rollers 21 are arranged along the length direction of the lifting main arm 20. The specific number of composite rollers 21 in each group of composite rollers 21 can be adaptively configured according to actual needs, such as the sliding distance of the conveying arm assembly 30, and no specific restrictions are made in the embodiment of the present invention. The cloud beam 31 is provided with a first track 310 extending along its own length direction, and the composite roller 21 is embedded in the first track 310. Specifically, the first track 310 is provided with a U-shaped groove on one side of the inner side wall of the lifting main arm 20, and the composite roller 21 is embedded in the groove, thereby limiting the freedom of the cloud beam 31 to move up and down and left and right, and constraining the cloud beam 31 in the notch of the lifting main arm 20.

[0042] In one embodiment of the present invention, at least one pair of support rollers 22 is provided, and the two support rollers 22 in each pair are respectively provided on the two inner side walls of the lifting main arm 20. When multiple pairs of support rollers 22 are provided, the multiple pairs of support rollers 22 are arranged along the length direction of the lifting main arm 20. A circumferential wheel groove is provided on the outer periphery of the support roller 22, and the bottom of the cloud beam 31 is fixedly connected with a second track 311 extending along its length direction, and the second track 311 is embedded in the wheel groove of the support roller 22, thereby limiting the freedom of the front end of the cloud beam 31 to move downward and left and right.

[0043] Through the cooperation of the composite roller 21 and the first track 310, the support roller 22 and the second track 311, the freedom of the cloud beam 31 to move left and right and up and down can be limited at the same time, and the movement of the cloud beam 31 can be constrained in the length direction of the lifting main arm 20, preventing the cloud beam 31 from wearing to the left and right when moving forward and backward.

[0044] In one embodiment of the present invention, the sliding shoe mechanism 32 is connected to the cloud beam 31 and is used to push the pipe column in the V-shaped groove to move along the length direction of the cloud beam 31.

[0045] Specifically, the sliding shoe mechanism 32 includes a sliding shoe and a driving component; wherein the sliding shoe is slidably connected to the cloud beam 31, and the driving component is used to drive the sliding shoe to slide back and forth along the length direction of the cloud beam 31. When the conveying arm assembly 30 is used to convey the pipe string, the driving component can be used to drive the sliding shoe to slide along the length direction of the cloud beam 31 to push the pipe string to move along the length direction of the cloud beam 31, thereby pushing the pipe string.

[0046] In some optional embodiments, the driving component can be any form of linear driving element such as a pneumatic cylinder, an oil cylinder, an electric push rod, a sprocket and a chain driven by a servo motor, as long as it can drive the sliding shoe to slide back and forth along the length direction of the cloud beam 31. No specific restrictions are made in the embodiments of the present invention.

[0047] In one embodiment of the present invention, a push rod mechanism 33 is disposed on both sides of the V-shaped groove in the width direction, and is used to push the pipe column out of the V-shaped groove when the drill is thrown. The push rod mechanism 33 includes a flap 330 and a first driving member; wherein the flap 330 extends from one side wall of the V-shaped groove to the other side wall, and the first driving member is connected to the flap 330, and is used to drive the flap 330 to flip toward the outside of the V-shaped groove, so as to push out the roller in the V-shaped groove and make it roll onto the base 10.

[0048] It is understandable that there are multiple optional solutions to achieve the first driving member driving the flap 330 to flip toward the outside of the V-shaped groove. In a feasible embodiment, the first driving member is a flap hydraulic cylinder, one end of the flap hydraulic cylinder is hinged to the fixed point of the cloud beam 31, and the other end is hinged to one end of the flap 330, and the other end of the flap 330 is hinged to the fixed point on the cloud beam 31. In this way, when the flap hydraulic cylinder is extended and retracted, the flap 330 can rotate and flip around the hinge point.

[0049] Of course, the push rod mechanism 33 includes but is not limited to the above-mentioned structural forms. Other structures or forms of push rod mechanisms 33 that can push the pipe column out of the V-shaped groove are also applicable, and they will not be listed one by one in the embodiment of the present invention.

[0050] In order to facilitate the pipe column to roll out of the base 10 by gravity after it is flipped out from the cloud beam 31, the platforms formed on both sides of the base 10 are tilted outward at a preset angle, for example, they can be tilted outward by 2 degrees. When the pipe column is flipped out from the cloud beam 31 and falls onto the base 10, it can roll outward from the base 10 by inertia and its own weight.

[0051] In one embodiment of the present invention, the blocking rod mechanism 34 is arranged on both sides of the width direction of the V-shaped groove, and the blocking rod mechanism 34 includes a blocking rod 340 and a second driving member, and the second driving member is connected to the blocking rod 340, and is used to drive the blocking rod 340 to extend out of the support surface or retract into the bottom of the cloud beam 31. When drilling, the blocking rod 340 on the opposite side extends out of the support surface, so that when the pipe string rolls into the cloud beam 31 from one side, it is prevented from rolling out of the cloud beam 31 due to excessive impact. After the pipe string enters the cloud beam 31, the blocking rods 340 on both sides extend out of the support surface to prevent the pipe string from rolling out of the cloud beam 31 during transportation; when drilling, the blocking rod 340 retracts to the bottom of the cloud beam 31, so that the pipe string can be pushed out of the V-shaped groove under the action of the push rod mechanism 33.

[0052] It is understandable that there are a variety of optional solutions to enable the second driving member to drive the blocking rod 340 to extend out of the supporting surface or retract to the bottom of the cloud beam 31.

[0053] In a feasible embodiment, a mounting hole is provided on the cloud beam 31 at a position corresponding to the blocking rod 340, and the blocking rod 340 can extend out of the support surface or retract into the bottom of the cloud beam 31 through the mounting hole. The second driving member can be a linear driving element such as an oil cylinder or an air cylinder, and the blocking rod 340 can be extended or retracted by driving the blocking rod 340 to rise and fall along a straight line.

[0054] In another feasible embodiment, the blocking rod 340 is hinged to a fixed point on the cloud beam 31, and the second driving member can be a combination of a linear driving element and a crank connecting rod. The crank connecting rod converts the linear motion of the linear driving element into the rotation of the blocking rod 340, so that the blocking rod 340 is flipped around the hinge point to achieve the extension or retraction of the blocking rod 340.

[0055] Of course, the blocking lever mechanism 34 includes but is not limited to the structural forms listed above, and the blocking lever mechanisms 34 of other structures or forms are not listed one by one in the embodiments of the present invention.

[0056] In order to facilitate the disassembly and transportation of the catwalk, in one embodiment of the present invention, referring to Figure 5 The cloud beam 31 includes a first section 312 and a second section 313. The ends of the first section 312 and the second section 313 are hinged so that the first section 312 and the second section 313 can be folded or unfolded relative to each other. When transporting the catwalk, only the first section 312 and the second section 313 need to be folded, and there is no need to disassemble the extra-long cloud beam 31 in sections, which saves time and effort.

[0057] Specifically, the first track 310 is disposed at the bottom of the first section 312 , and the second track 311 is disposed below the entire second section 313 and below the front section of the first section 312 .

[0058] In one embodiment of the present invention, a connecting block 314 is provided between the first section 312 and the second section 313, one end of the connecting block 314 is hinged to the first section 312, and the other end is hinged to the second section 313. Through the connecting block 314, the first section 312 and the second section 313 can be folded or unfolded with each other.

[0059] In order to ensure the stability of the cloud beam 31 during operation, in one embodiment of the present invention, the lifting power catwalk also includes a positioning structure for positioning the first section 312 and the second section 313 after they are deployed.

[0060] Specifically, the positioning structure includes a first pin hole 315, a second pin hole 316 and a fixed pin shaft 317; wherein the first pin hole 315 is arranged at the first section 312, the second pin hole 316 is arranged at the second section 313, and when the cloud beam 31 is unfolded, the positions of the first pin hole 315 and the second pin hole 316 correspond; the fixed pin shaft 317 is suitable for passing through the first pin hole 315 and the second pin hole 316 in sequence, so as to realize the positioning between the first section 312 and the second section 313. When transporting the catwalk, the first section 312 and the second end can be folded by simply removing the fixed pin shaft 317.

[0061] In one embodiment of the present invention, the conveying arm assembly 30 also includes a clamp head device 35 connected to the end of the cloud beam 31 away from the hinge point; the clamp head device 35 includes a clamp head that can be opened and closed, a power component for driving the clamp head to open and close, and a lifting member for driving the clamp head to rise and fall. In this configuration, the clamp head device 35 is not required to participate in the elevator working mode, and the clamp head device 35 is located as a whole below the cloud beam 31 under the action of the lifting member; in the power head operation mode, when the pipe coupling enters the clamp head working position, the clamp head rises and supports the pipe column under the action of the lifting member, and the clamp head clamps the pipe column and cooperates with the power head to complete the buckle-on and buckle-off operations, which solves the problem that the well crew cannot use the catwalk in the power head operation mode.

[0062] The specific structure of the clamp head can refer to the hydraulic back-up clamp in the prior art, and will not be described in detail in the embodiments of the present invention. In the power head operation mode, when the pipe coupling enters the clamp head working position, the clamp head rises to lift the pipe, the clamp head clamps the pipe and maintains the clamping torque through the hydraulic accumulator, adjusts the clamping torque through the overflow valve, and cooperates with the power head to complete the buckle-on and buckle-off operations.

[0063] In some optional embodiments, the lifting member can be any form of linear drive element such as an air cylinder, an oil cylinder, an electric push rod, etc., as long as it can drive the clamp head to rise and fall.

[0064] The other structures of the lifting power catwalk will be described in detail below in conjunction with the accompanying drawings.

[0065] In one embodiment of the present invention, referring to Figure 1The lifting power catwalk also includes a first upper swing drill mechanism arranged on at least one side of the base 10. The first upper swing drill mechanism includes a lifting rod structure 61 and a supporting rod structure 62; wherein, the lifting rod structure 61 includes a lifting rod 610 and a third driving member; one end of the lifting rod 610 is hinged to the base 10, and the other end extends out of the base 10 along the width direction of the conveying arm assembly 30, and the third driving member is connected to the lifting rod 610, and is used to drive the lifting rod 610 to swing in the height direction of the base 10. The supporting rod structure 62 includes a plurality of supporting rods 620 arranged along the length direction of the base 10, one end of the supporting rod 620 is fixedly connected to the base 10, and the other end extends out of the base 10 along the width direction of the conveying arm assembly 30, and the supporting rod 620 is inclined toward the bottom of the base 10.

[0066] In actual work, the first upper drilling mechanism can cooperate with the pipe rack to connect the pipe rack with the end of the lever 620 away from the base 10. When drilling, the blocking rod 340 on one side of the first upper drilling mechanism falls down, and the third driving member drives the lifting rod 610 to swing up and down, so as to directly lift the pipe column on the pipe rack into the cloud beam 31. When drilling, after the cloud beam 31 falls to a horizontal level, the push rod mechanism 33 flips toward the outside of the V-shaped groove to push the pipe column to the base 10. The pipe column rolls onto the lever 620 by inertia and its own weight, and rolls onto the pipe rack along the lever 620 to complete the drilling.

[0067] In some optional embodiments, according to different actual needs, the third driving member can be set to different structural forms. For example, a linear driving element such as a pneumatic cylinder, an oil cylinder, or an electric cylinder can be connected to the lifting rod 610 by a crank. The crank can convert the linear motion of the linear driving element into the rotational motion of the lifting rod 610, thereby driving the lifting rod 610 to swing.

[0068] In one embodiment of the present invention, referring to Figure 1 and Figure 6 The lifting power catwalk also includes a second upper swing drill mechanism arranged on at least one side of the base 10. The second upper swing drill mechanism includes a feed rod structure 71 and a pipe rack 72; wherein the feed rod structure 71 includes a feed rod 710 and a fourth driving member; one end of the feed rod 710 is close to the conveying arm assembly 30, and the other end extends out of the base 10 along the width direction of the conveying arm assembly 30, and the fourth driving member is connected to the feed rod 710, and is used to drive the feed rod 710 to tilt toward any end of itself; one end of the pipe rack 72 is close to the base 10 and connected with one end of the feed rod 710 extending out of the base 10, and the other end is away from the base 10 along the width direction of the base 10, and a lifting leg 720 is connected to the pipe rack 72, which is used to drive the pipe rack 72 to tilt toward any end of itself.

[0069] In actual work, when drilling, the blocking rod 340 on one side of the second upper drilling mechanism falls down, and the lifting leg 720 drives the pipe rack 72 to tilt toward the base 10. The pipe string rolls into the base 10 under the action of gravity, and then the feed rod 710 tilts toward the direction of the conveying arm assembly 30 to push the pipe string into the cloud beam 31 to achieve drilling; when drilling, after the cloud beam 31 falls to the horizontal, the push rod mechanism 33 flips toward the outside of the V-shaped groove to push the pipe string to the base 10. The pipe string rolls onto the feed rod structure 71 by inertia and its own weight, and the feed rod 710 tilts toward the outside of the base 10 to push the pipe string to the pipe rack 72, and the drilling is completed.

[0070] In one embodiment of the present invention, the fourth driving member includes a rod-in cylinder 711 and a rod-out cylinder 712; one end of the rod-in cylinder 711 is hinged to the base 10, and the other end is hinged to the end of the rod-in cylinder 710 extending out of the base 10; one end of the rod-out cylinder 712 is hinged to the base 10, and the other end is hinged to the end of the rod-in cylinder 710 close to the conveying arm assembly 30. Through the extension and retraction of the rod-in cylinder 711 and the rod-out cylinder 712, the rod-in cylinder 710 is tilted toward any end of itself, thereby realizing the rod-in and rod-out.

[0071] In one embodiment of the present invention, the pipe rack 72 has the functions of temporarily storing pipe strings and throwing drills up. The upper plane can store multiple drill collars or drill rods. The pipe rack 72 is integrated with an adjustment roller 721. When the well team discharges the pipe strings unevenly, the pipe strings can be manually pushed to align by adjusting the roller 721. The end of the pipe rack 72 close to the base 10 is hinged to the base 10, and the lifting leg 720 is connected to the end of the pipe rack 72 away from the base 10. The lifting leg 720 is lifted and lowered to achieve the inward or outward tilting of the pipe rack 72 to complete the throwing drill operation. During transportation, the pipe rack 72 can be rotated as a whole and close to the base 10 to prevent it from being too wide.

[0072] It can be understood that the above-mentioned first upper drill-throwing mechanism and the second upper drill-throwing mechanism can be selectively set on one side or both sides of the base 10, or the first upper drill-throwing mechanism can be set on one side of the base 10, and the second upper drill-throwing mechanism can be set on the other side of the base 10. The specific selection can be made according to actual needs.

[0073] Specifically, installation positions for the first upper drill-throwing mechanism and the second upper drill-throwing mechanism can be set on each side of the base 10, so that different upper drill-throwing mechanisms can be flexibly installed on both sides of the base 10 according to site requirements, that is, the first upper drill-throwing mechanism and the second upper drill-throwing mechanism can be swapped left and right to meet the restricted working conditions of the site, and the well site adaptability is strong.

[0074] In some optional embodiments, the lifting mechanism 50 can be set to different structural forms according to different actual needs.

[0075] In one embodiment of the present invention, the lifting mechanism 50 includes a lower support arm 51, an upper support arm 52 and a power piece 53; wherein, one end of the lower support arm 51 is hinged to the base 10, and the other end is hinged to the upper support arm 52; one end of the upper support arm 52 away from the lower support arm 51 is hinged to the lifting main arm 20; the power piece 53 is used to drive the upper support arm 52 and the lower support arm 51 to relatively unfold or fold, thereby pushing the lifting main arm 20 to lift or lower.

[0076] In one embodiment of the present invention, the power member 53 can be a linear drive element of any form such as an oil cylinder, a pneumatic cylinder, an electric push rod, etc. One end of the power member 53 is hinged to the lower support arm 51, and the other end is hinged to the upper support arm 52. When the power member 53 is extended or retracted, it drives the upper support arm 52 and the lower support arm 51 to fold or unfold relative to each other, thereby realizing the lifting and lowering of the lifting main arm 20.

[0077] In this embodiment, the power member 53 is a cylinder.

[0078] In one embodiment of the present invention, a pull rod sensor can be integrated between the upper support arm 52 and the lower support arm 51 for real-time detection of the rotation position of the lifting main arm 20, and a pull wire sensor can be integrated between the lifting main arm 20 and the cloud beam 31 for real-time detection of the extension position of the cloud beam 31 for calibration and control.

[0079] It is to be understood that, without mutual contradiction, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification.

[0080] The lifting power catwalk provided in the embodiment of the present invention can adjust the lifting height of the lifting main arm 20 through the lifting mechanism 50, and can adjust the distance that the conveying arm assembly 30 extends out of the lifting main arm 20 through the driving mechanism 40. When the height of the drilling table changes, the lifting height of the lifting main arm 20 and the distance that the conveying arm assembly 30 extends out of the lifting main arm 20 can be adjusted according to the actual construction scene to keep the distance between the front end of the conveying arm assembly 30 and the wellhead unchanged, thereby meeting the operation requirements of a wide range of drilling tables with different heights without adjusting the installation position of the catwalk, reducing the labor intensity of the staff and reducing costs.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lifting power catwalk, characterized in that: include: Base (10); A lifting main arm (20), one end of which is hinged to the base (10); The conveying arm assembly (30) is suitable for conveying a pipe column along its length direction; the conveying arm assembly (30) is arranged along the length direction of the lifting main arm (20) and is slidably connected to the lifting main arm (20), so that the conveying arm assembly (30) can extend from the other end of the lifting main arm (20); A driving mechanism (40), a driving end of which is connected to the conveying arm assembly (30) and is used to drive the conveying arm assembly (30) to slide back and forth along the lifting main arm (20); A lifting mechanism (50) has a driving end connected to the lifting main arm (20) and is used to drive the lifting main arm (20) to rotate around a hinge point to lift or lower.

2. The lifting power catwalk according to claim 1, characterized in that: The conveying arm assembly (30) comprises: A cloud beam (31) is slidably connected to the lifting main arm (20), and the other side of the cloud beam (31) relative to the lifting main arm (20) is a support surface, and a V-shaped groove extending along the length direction of the cloud beam (31) and used to accommodate a pipe column is provided on the support surface; The sliding shoe mechanism (32) comprises a sliding shoe slidably connected to the cloud beam (31), and a driving component used for driving the sliding shoe to slide back and forth along the length direction of the cloud beam (31).

3. The lifting power catwalk according to claim 2, characterized in that: The lifting main arm (20) is connected to a composite roller (21) and a supporting roller (22), and the cloud beam (31) is provided with a first track (310) and a second track (311) extending along its length direction; The composite roller (21) is engaged with the first track (310) to limit the freedom of the cloud beam (31) in the width direction and the height direction of the lifting main arm (20), and the second track (311) is supported on the supporting roller (22) to limit the freedom of the cloud beam (31) in the width direction of the lifting main arm (20).

4. The lifting power catwalk according to claim 2, characterized in that: The cloud beam (31) comprises a first section (312) and a second section (313), and the ends of the first section (312) and the second section (313) are hinged so that the first section (312) and the second section (313) can be folded or unfolded relative to each other.

5. The lifting power catwalk according to claim 4, characterized in that: It also includes a positioning structure for positioning the first section (312) and the second section (313) after they are unfolded.

6. The lifting power catwalk according to any one of claims 2 to 5, characterized in that: The conveying arm assembly (30) further comprises a clamp head device (35) connected to an end of the cloud beam (31) away from the hinge point; The clamp head device (35) comprises: a clamp head capable of opening and closing, a power component for driving the clamp head to open and close, and a lifting member for driving the clamp head to rise and fall.

7. The lifting power catwalk according to claim 2, characterized in that: The conveying arm assembly (30) further comprises: A push rod mechanism (33) is arranged on both sides of the V-shaped groove in the width direction, and the push rod mechanism (33) includes a flap (330) and a first driving member, the flap (330) extends from one side wall of the V-shaped groove to the other side wall, and the first driving member is connected to the flap (330) and is used to drive the flap (330) to flip toward the outside of the V-shaped groove.

8. The lifting power catwalk according to claim 7, characterized in that: The conveying arm assembly (30) further comprises: A blocking rod mechanism (34) is arranged on both sides of the V-shaped groove in the width direction; the blocking rod mechanism (34) comprises a blocking rod (340) and a second driving member; the second driving member is connected to the blocking rod (340) and is used to drive the blocking rod (340) to extend out of the supporting surface or retract into the bottom of the cloud beam (31).

9. The lifting power catwalk according to claim 1, characterized in that: It also includes a first upper drilling mechanism disposed on at least one side of the base (10); the first upper drilling mechanism includes: A lifting rod structure (61) comprises a lifting rod (610) and a third driving member; one end of the lifting rod (610) is hinged to the base (10), and the other end extends out of the base (10) along the width direction of the conveying arm assembly (30); the third driving member is connected to the lifting rod (610) and is used to drive the lifting rod (610) to swing in the height direction of the base (10); The rod structure (62) comprises a plurality of rods (620) arranged along the length direction of the base (10), one end of the rod (620) is connected to the base (10), and the other end extends out of the base (10) along the width direction of the conveying arm assembly (30), and the rod (620) is inclined toward the bottom of the base (10).

10. The lifting power catwalk according to claim 1, characterized in that: It also includes a second upper drilling mechanism disposed on at least one side of the base (10); the second upper drilling mechanism includes: The feed rod structure (71) comprises a feed rod (710) and a fourth driving member; one end of the feed rod (710) is close to the conveying arm assembly (30), and the other end extends out of the base (10) along the width direction of the conveying arm assembly (30); the fourth driving member is connected to the feed rod (710) and is used to drive the feed rod (710) to tilt toward any end of itself; The pipe rack (72) has one end close to the base (10) and connected to one end of the feed rod (710) extending out of the base (10), and the other end away from the base (10) along the width direction of the base (10). The pipe rack (72) is connected to a lifting leg (720) for driving the pipe rack (72) to tilt toward either end of itself.

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