Lift power catwalk

Abstract

The present application relates to the technical field of oil drilling equipment, and provides a lifting type power catwalk, which comprises a base, a lifting main arm hinged to one end of the base, a conveying arm assembly adapted to convey a pipe column along the length direction of the conveying arm assembly, the conveying arm assembly being arranged along the length direction of the lifting main arm and being 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 connected to the conveying arm assembly at the driving end and used for driving the conveying arm assembly to reciprocate along the lifting main arm, and a lifting mechanism connected to the lifting main arm at the driving end and used for driving the lifting main arm to rotate around the hinge point to lift or drop. In this way, the catwalk can be adapted to drilling platforms of different heights without moving the catwalk, the catwalk does not need to be frequently hoisted to adapt to the height change of the drilling platform, or the product spectrum needs to be increased, the operation intensity is reduced, and the cost is lowered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil drilling equipment, and in particular to a lifting type power catwalk. BACKGROUND

[0002] In the field of oil and coal bed gas development, a power catwalk is a commonly used automatic equipment for the up and down of a pipe string on a drilling platform. By remotely operating the catwalk, the operation intensity of the pipe string up and down is reduced, the work efficiency is improved, and the safety risk is effectively reduced.

[0003] However, the conventional catwalk still has certain limitations in adapting to different drilling platform heights. In the related art, in order to adapt the catwalk to the change of the height of the drilling platform surface, the catwalk needs to be frequently hoisted to adjust the installation distance between the catwalk and the drilling platform or the product spectrum needs to be increased, which greatly increases the operation intensity and production cost.

[0004] Therefore, how to improve the applicability of the catwalk to different drilling platform heights and reduce the operation intensity and production cost is an important subject to be solved at present. SUMMARY

[0005] The present application provides a lifting type power catwalk to solve the defect that the applicability of the catwalk to different height drilling platform surfaces is poor in the prior art, which can adapt to different height drilling platform surfaces without moving the catwalk, and does not need to frequently hoist the catwalk or increase the product spectrum to adapt to the change of the height of the drilling platform surface, thereby reducing the operation intensity and cost.

[0006] The present application provides a lifting type power catwalk, comprising:

[0007] a base;

[0008] a lifting main arm hingedly connected to the base at one end;

[0009] a conveying arm assembly adapted to convey a pipe string along the length direction of the conveying arm assembly; the conveying arm assembly is arranged along the length direction of the lifting main arm and is slidingly connected to the lifting main arm, so that the conveying arm assembly can extend from the other end of the lifting main arm;

[0010] a driving mechanism connected to the conveying arm assembly at the driving end and used to drive the conveying arm assembly to reciprocally slide along the lifting main arm;

[0011] a lifting mechanism connected to the lifting main arm at the driving end and used to drive the lifting main arm to rotate around the hinge point to lift or lower.

[0012] According to the lifting type power catwalk provided by the present application, the conveying arm assembly comprises:

[0013] A cloud beam is slidably connected to the lifting main arm, and a supporting surface is arranged on the other side of the cloud beam relative to the lifting main arm, and a V-shaped groove for accommodating a pipe column is arranged on the supporting surface along the length direction of the cloud beam.

[0014] A sliding shoe mechanism is arranged on the cloud beam, and a driving component is arranged for driving the sliding shoe to reciprocally slide along the length direction of the cloud beam.

[0015] According to the lifting power catwalk provided by the present application, 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 the length direction of the cloud beam.

[0016] The composite roller is embedded in the first track for limiting the freedom degree of the cloud beam in the width direction and the height direction of the lifting main arm, and the second track is supported on the supporting roller for limiting the freedom degree of the cloud beam in the width direction of the lifting main arm.

[0017] According to the lifting power catwalk provided by the present application, the cloud beam comprises a first section and a second section, and the end portions of the first section and the second section are hingedly connected, so that the first section and the second section can be folded or unfolded relative to each other.

[0018] According to the lifting power catwalk provided by the present application, the lifting power catwalk further comprises a positioning structure for positioning the unfolded first section and the unfolded second section.

[0019] According to the lifting power catwalk provided by the present application, the conveying arm assembly further comprises a tongs device connected to the end of the cloud beam away from the hinged point.

[0020] The tongs device comprises a tongs capable of being opened and closed, a power component for driving the tongs to open and close, and a lifting member for driving the tongs to lift.

[0021] According to the lifting power catwalk provided by the present application, the conveying arm assembly further comprises:

[0022] A push rod mechanism is arranged on both sides of the V-shaped groove in the width direction, and the push rod mechanism comprises a flap and a first driving member, the flap extends from one side wall to the other side wall of the V-shaped groove, and the first driving member is connected with the flap for driving the flap to turn over towards the outside of the V-shaped groove.

[0023] According to the lifting power catwalk provided by the present application, the conveying arm assembly further comprises:

[0024] A stop lever mechanism is arranged on both sides of the V-shaped groove in the width direction of the V-shaped groove, and the stop lever mechanism comprises a stop lever and a second driving member; the second driving member is connected with the stop lever and is used for driving the stop lever to extend out of the support surface or to retract into the bottom of the cloud beam.

[0025] The lifting power catwalk further comprises a first upper swing drill mechanism arranged on at least one side of the base, and the first upper swing drill mechanism comprises:

[0026] A cantilever structure comprises a cantilever and a third driving member; one end of the cantilever is hinged to the base, and the other end of the cantilever extends out of the base in the width direction of the conveying arm assembly; the third driving member is connected with the cantilever and is used for driving the cantilever to swing in the height direction of the base.

[0027] A clamping lever structure comprises a plurality of clamping levers arranged in the length direction of the base; one end of each clamping lever is connected with the base, and the other end of each clamping lever extends out of the base in the width direction of the conveying arm assembly, and each clamping lever is inclined towards the bottom of the base.

[0028] The lifting power catwalk further comprises a second upper swing drill mechanism arranged on at least one side of the base, and the second upper swing drill mechanism comprises:

[0029] An entering lever structure comprises an entering lever and a fourth driving member; one end of the entering lever is close to the conveying arm assembly, and the other end of the entering lever extends out of the base in the width direction of the conveying arm assembly; the fourth driving member is connected with the entering lever and is used for driving the entering lever to incline towards either end of the entering lever.

[0030] A pipe rack is arranged close to the base and is connected with one end of the entering lever extending out of the base, and the other end of the pipe rack is away from the base in the width direction of the base; the pipe rack is connected with a lifting leg and is used for driving the pipe rack to incline towards either end of the pipe rack.

[0031] The lifting power catwalk further comprises a connecting block arranged 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 of the connecting block is hinged to the second section of the cloud beam.

[0032] The lifting power catwalk can adjust the lifting height of the lifting main arm through the lifting mechanism, and can adjust the distance between the conveying arm assembly and the lifting main arm through the driving mechanism; when the height of the drilling platform changes, the lifting height of the lifting main arm and the distance between the conveying arm assembly and the lifting main arm can be adjusted according to the actual construction scene, so that the distance between the front end of the conveying arm assembly and the wellhead remains unchanged, thereby meeting the operation requirements of the drilling platform with different heights in a large range without adjusting the installation position of the catwalk, reducing the labor intensity of the workers and the cost. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the lifting-type powered cat walkway provided in an embodiment of the present invention.

[0035] Figure 2 This is a schematic diagram of the lifting-type powered cat walkway provided in the embodiments of the present invention under different working conditions.

[0036] Figure 3 This is a schematic diagram of the lifting boom provided in an embodiment of the present invention.

[0037] Figure 4 This is a schematic diagram of the conveyor arm assembly provided in an embodiment of the present invention.

[0038] Figure 5 This is a schematic diagram of the cloud beam structure provided in an embodiment of the present invention.

[0039] Figure 6 This is a schematic diagram of the structure of the second upper drilling mechanism provided in an embodiment of the present invention.

[0040] Figure label:

[0041] 10. Base; 20. Lifting main boom; 21. Composite roller; 22. Support roller; 30. Conveyor 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. Stop bar mechanism 340. Stop bar; 35. Clamping head device; 40. Drive mechanism; 50. Lifting mechanism; 51. Lower support arm; 52. Upper support arm; 53. Power component; 61. Cantilever structure; 610. Cantilever; 62. Pole-mounting structure; 620. Pole-mounting; 71. Pole-advancing structure; 710. Pole-advancing; 711. Pole-advancing cylinder; 712. Pole-exiting cylinder; 72. Pipe rack; 720. Lifting outrigger; 721. Adjusting roller. Detailed Implementation

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in conjunction with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0043] In order to better understand the lifting power catwalk provided by the present application, the application background thereof is introduced first. As an important automated tool for the pipe column up and down drilling platform, the power catwalk plays a key role in improving the operation efficiency. However, the traditional catwalk still has certain limitations in adapting to different drilling platform heights. In order to adapt the catwalk to the change of the drilling platform height, the catwalk needs to be frequently hoisted to adjust the installation distance between the catwalk and the drilling platform or increase the product spectrum, which greatly increases the operation intensity and production cost.

[0044] Therefore, how to improve the applicability of the catwalk to different drilling platform heights and reduce the operation intensity and production cost is an important issue to be solved at present.

[0045] In view of the above problems, the embodiments of the present application provide a lifting power catwalk, which can adapt to drilling platform surfaces of different heights without moving the catwalk, does not need to frequently hoist the catwalk to adapt to the change of the drilling platform surface height or increase the product spectrum, and reduces the operation intensity and cost.

[0046] The lifting power catwalk of the present application will be described below in conjunction with Figures 1-6 The lifting power catwalk of the present application will be described below in conjunction with

[0047] Referring to Figures 1 to 4 The 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. The base 10 constitutes the bottom support of the power catwalk and can provide an installation basis for each component 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 rotate around the hinge point to be lifted or lowered. The conveying arm assembly 30 is suitable for conveying the pipe column along the length direction thereof. The conveying arm assembly 30 is arranged along the length direction of the lifting main arm 20 and is slidingly 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 reciprocate 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.

[0048] In actual work, the lifting height of the lifting main arm 20 can be adjusted through the lifting mechanism 50, and the distance of the conveying arm assembly 30 extending out of the lifting main arm 20 can be adjusted through the driving mechanism 40. When the drilling platform height changes, the lifting height of the lifting main arm 20 and the distance of the conveying arm assembly 30 extending out of the lifting main arm 20 can be adjusted according to the actual construction scene, so that the distance between the front end of the conveying arm assembly 30 and the well mouth remains unchanged, thereby meeting the operation requirements of a large range of different height drilling platforms without adjusting the installation position of the catwalk, reducing the labor intensity of workers and reducing the cost.

[0049] 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, which is not specifically limited in the embodiments of the present application.

[0050] In an embodiment of the present application, the base 10 serves as the bearing foundation of the power catwalk, and has a whole rectangular frame structure. The lifting main arm 20 is arranged along the length direction of the rectangular frame and 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. 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, the other end thereof can be lifted or lowered.

[0051] In an embodiment of the present application, the lifting main arm 20 has a whole notch structure, and an opening is arranged at the end thereof away from the hinge point. The conveying arm assembly 30 is embedded in the lifting main arm 20 and can extend out of the opening end of the lifting main arm 20 under the driving of the driving mechanism 40.

[0052] In some optional embodiments, the driving mechanism 40 can adopt any form of linear driving element such as a pneumatic cylinder, an oil cylinder or an electric push rod, as long as it can drive the conveying arm assembly 30 to reciprocate along the length direction of the lifting main arm 20.

[0053] As a specific embodiment of the present application, the driving mechanism 40 adopts a telescopic oil cylinder. The telescopic oil cylinder is arranged along the length direction of the lifting main arm 20, and the cylinder body is fixedly connected with the lifting main arm 20, and the piston rod is connected with the conveying arm assembly 30.

[0054] In one embodiment of the present application, the conveying arm assembly 30 comprises 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 base 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, thereby realizing 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. The push rod mechanism 33 can be used to push the pipe column out of the cloud beam 31 when tripping out of the hole. The blocking rod mechanism 34 can be used to prevent the pipe column from rolling out of the cloud beam 31 when the pipe column rolls into the cloud beam 31 from one side when tripping into the hole, and can also play a safety role when the cloud beam 31 is in an inclined state.

[0055] In one embodiment of the present application, the cloud beam 31 is laid along the length direction of the main hoisting arm 20. The bottom of the cloud beam 31 is embedded in the slot of the main hoisting arm 20 and is in sliding connection with the main hoisting arm 20. The piston rod of the telescopic oil cylinder is fixedly connected with the cloud beam 31. The other side of the cloud beam 31 relative to the main hoisting arm 20, i.e. the upper surface, is a support surface. The support surface is provided with a V-shaped groove extending along the length direction of the cloud beam 31 for accommodating the pipe column.

[0056] In order to facilitate the sliding connection of the cloud beam 31 and the main hoisting arm 20, in one embodiment of the present application, the main hoisting arm 20 is connected with a composite roller 21 and a supporting roller 22. Specifically, the composite roller 21 and the supporting roller 22 are both located in the slot of the main hoisting arm 20. The composite roller 21 is relatively closer to the hinge point, while the supporting roller 22 is connected at the other end of the main hoisting arm 20 relative to the hinge point, i.e. the opening end.

[0057] In one embodiment of the present application, the composite roller 21 is provided with two groups. The two groups of composite rollers 21 are respectively located on the two inner side walls of the main hoisting arm 20. Moreover, the plurality of composite rollers 21 in each group of composite rollers 21 are arranged along the length direction of the main hoisting 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, which is not specifically limited in the embodiment of the present application. The cloud beam 31 is provided with a first track 310 extending along the length direction of the cloud beam 31. The composite roller 21 is embedded in the first track 310. Specifically, the first track 310 is provided with a U-shaped channel towards one side of the inner side wall of the main hoisting arm 20. The composite roller 21 is embedded in the channel, thereby limiting the freedom degrees of the cloud beam 31 moving up and down and moving left and right, and restricting the cloud beam 31 in the slot of the main hoisting arm 20.

[0058] In one embodiment of the present application, the support rollers 22 are provided with at least one pair, and two support rollers 22 in each pair are arranged on the two inner side walls of the lifting main arm 20 respectively. When the support rollers 22 are provided with multiple pairs, the multiple pairs of support rollers 22 are arranged along the length direction of the lifting main arm 20. The outer periphery of the support rollers 22 is provided with a circumferential wheel groove, and the bottom of the girder 31 is fixedly connected with a second track 311 extending along the length direction of the girder 31, 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 girder 31 to move downward and left and right.

[0059] Through the cooperation of the composite roller 21 and the first track 310, and the support roller 22 and the second track 311, the freedom of the girder 31 to move left and right and up and down can be limited at the same time, the movement of the girder 31 is restricted in the length direction of the lifting main arm 20, and the girder 31 is prevented from being deflected to the left and right when moving forward and backward.

[0060] In one embodiment of the present application, the sliding shoe mechanism 32 is connected to the girder 31 and used to push the pipe column in the V-shaped groove to move along the length direction of the girder 31.

[0061] Specifically, the sliding shoe mechanism 32 includes a sliding shoe and a driving component; wherein the sliding shoe is slidingly connected to the girder 31, and the driving component is used to drive the sliding shoe to reciprocatingly slide along the length direction of the girder 31. When the pipe column is conveyed by the conveying arm assembly 30, the sliding shoe can be driven by the driving component to slide along the length direction of the girder 31, so as to push the pipe column to move along the length direction of the girder 31, thereby achieving the pushing of the pipe column.

[0062] In some optional embodiments, the driving component can adopt any form of linear driving element such as a pneumatic cylinder, an oil cylinder, an electric push rod, a chain wheel and chain driven by a servo motor, as long as it can drive the sliding shoe to reciprocatingly slide along the length direction of the girder 31, and the present application does not make specific limitation in the embodiments.

[0063] In one embodiment of the present application, the push rod mechanism 33 is arranged on both sides in the width direction of the V-shaped groove, and 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 with the flap 330 and used to drive the flap 330 to flip towards the outside of the V-shaped groove, so as to push the rollers in the V-shaped groove out and make them roll down to the base 10.

[0064] It can be understood that there are multiple optional solutions to realize the driving of the first driving member to drive the turnover plate 330 to turn over to the outside of the V-shaped groove. In one possible embodiment, the first driving member is a turnover plate hydraulic cylinder, one end of which is hinged to a fixed point on the cloud beam 31, and the other end is hinged to one end of the turnover plate 330, and the other end of the turnover plate 330 is hinged to a fixed point on the cloud beam 31. Thus, when the turnover plate hydraulic cylinder extends and retracts, the turnover plate 330 can rotate and turn over around the hinge point.

[0065] Of course, the push rod mechanism 33 includes but is not limited to the structure forms listed above, and other structures or forms that can push the pipe string out of the V-shaped groove can also be applicable, and the embodiments of the present application will not be listed one by one.

[0066] In order to facilitate the pipe string to roll out of the base 10 by gravity after being turned over from the cloud beam 31, the platforms formed on both sides of the base 10 are inclined outward by a preset angle, for example, can be inclined outward by 2 degrees. When the pipe string is turned over from the cloud beam 31 and falls onto the base 10, it can rely on inertia and weight to roll outward from the base 10.

[0067] In one embodiment of the present application, the stop rod mechanism 34 is arranged on both sides of the width direction of the V-shaped groove, and the stop rod mechanism 34 includes a stop rod 340 and a second driving member connected with the stop rod 340, for driving the stop rod 340 to extend out of the support surface or retract into the bottom of the cloud beam 31. When drilling, the stop 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, the excessive rolling force is prevented from rolling out of the cloud beam 31, and after the pipe string enters the cloud beam 31, the stop 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 tripping, the stop rod 340 retracts into the bottom of the cloud beam 31, so that the pipe string is pushed out of the V-shaped groove under the action of the push rod mechanism 33.

[0068] It can be understood that there are multiple optional solutions to realize the driving of the second driving member to drive the stop rod 340 to extend out of the support surface or retract into the bottom of the cloud beam 31.

[0069] In one possible embodiment, the cloud beam 31 is provided with mounting holes corresponding to the positions of the stop rod 340, and the stop rod 340 can extend out of the support surface or retract into the bottom of the cloud beam 31 through the mounting holes. The second driving member can adopt a linear driving element such as an oil cylinder or an air cylinder, and the extension or retraction of the stop rod 340 can be realized by driving the stop rod 340 to move up and down along a straight line.

[0070] In another possible embodiment, the stop rod 340 is hinged to a fixed point on the cloud beam 31, and the second driving member can adopt a combination of a linear driving element and a crank linkage, which converts the linear motion of the linear driving element into the rotation of the stop rod 340, so that the stop rod 340 rotates around the hinge point to realize the extension or retraction of the stop rod 340.

[0071] Of course, the blocking lever mechanism 34 includes but is not limited to the above-mentioned structure, and other structures or forms of the blocking lever mechanism 34 are not listed in the embodiments of the present application.

[0072] In order to facilitate the disassembly and transportation of the catwalk, in an embodiment of the present application, referring to Figure 5 The cloud beam 31 includes 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. When transporting the catwalk, only the first section 312 and the second section 313 need to be folded, without the need to disassemble the segmented cloud beam 31, saving time and effort.

[0073] Specifically, the first track 310 is arranged at the bottom of the first section 312, and the second track 311 is arranged below the second section 313 and below the front section of the first section 312.

[0074] In an embodiment of the present application, a connecting block 314 is arranged 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 are folded or unfolded relative to each other.

[0075] In order to ensure the stability of the cloud beam 31 during work, in an embodiment of the present application, the lifting power catwalk further includes a positioning structure for positioning the unfolded first section 312 and the second section 313.

[0076] Specifically, the positioning structure includes a first pin hole 315, a second pin hole 316, and a fixed pin shaft 317; the first pin hole 315 is arranged on the first section 312, the second pin hole 316 is arranged on the second section 313, and the positions of the first pin hole 315 and the second pin hole 316 correspond when the cloud beam 31 is unfolded; the fixed pin shaft 317 is adapted to pass through the first pin hole 315 and the second pin hole 316 in sequence, thereby realizing the positioning between the first section 312 and the second section 313. When transporting the catwalk, only the fixed pin shaft 317 needs to be disassembled, and the first section 312 and the second section 313 can be folded.

[0077] In one embodiment of the present application, the conveying arm assembly 30 further comprises a tong device 35 connected to the cloud beam 31 at a position away from the hinge point; the tong device 35 comprises a pair of tongs capable of opening and closing, a power component for driving the tongs to open and close, and a lifting member for driving the tongs to lift up and down. In this way, the tong device 35 is not involved in the operation of the elevator, and is located below the cloud beam 31 under the action of the lifting member in the elevator mode; in the power head mode, when the pipe collar enters the working position of the tongs, the tongs are lifted up to hold the pipe column under the action of the lifting member, the tongs clamp the pipe column and cooperate with the power head to complete the make-up and break-out operations, thereby solving the problem that the catwalk cannot be used by the well team in the power head mode.

[0078] The specific structure of the tongs can refer to the hydraulic back tongs in the prior art, and will not be described in detail in the embodiment of the present application. In the power head mode, when the pipe collar enters the working position of the tongs, the tongs are lifted up to hold the pipe column, the tongs clamp the pipe column and keep the clamping torque through the hydraulic accumulator, the clamping torque is adjusted through the overflow valve, and the make-up and break-out operations are completed in cooperation with the power head.

[0079] In some optional embodiments, the lifting member can adopt any form of linear driving element such as a pneumatic cylinder, an oil cylinder or an electric push rod, as long as it can drive the tongs to lift up and down.

[0080] The other structures of the lifting power catwalk will be described in detail below with reference to the accompanying drawings.

[0081] In one embodiment of the present application, referring to Figure 1 , the lifting power catwalk further comprises a first up-dropping mechanism arranged on at least one side of the base 10. The first up-dropping mechanism comprises a pick lever structure 61 and a clamping lever structure 62; the pick lever structure 61 comprises a pick lever 610 and a third driving member; one end of the pick lever 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 pick lever 610 and is used to drive the pick lever 610 to swing in the height direction of the base 10. The clamping lever structure 62 comprises a plurality of clamping levers 620 arranged along the length direction of the base 10; one end of each clamping lever 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 clamping levers 620 are inclined towards the bottom of the base 10.

[0082] In actual work, the first up-dropping mechanism can cooperate with the pipe rack to connect the pipe rack to the end of the clamping lever 620 away from the base 10; when the pipe column is dropped, the stop lever 340 on one side of the first up-dropping mechanism is lowered, and the third driving member drives the pick lever 610 to swing up and down, so that the pipe column on the pipe rack is directly picked into the cloud beam 31; when the pipe column is dropped, the cloud beam 31 is lowered to the horizontal position, the push lever mechanism 33 is turned towards the outside of the V-shaped groove, the pipe column is pushed to the base 10, the pipe column rolls onto the clamping lever 620 by inertia and gravity, and then rolls onto the pipe rack along the clamping lever 620, thereby completing the pipe dropping operation.

[0083] In some optional embodiments, the third driving member can be provided in different structural forms according to different actual needs, for example, a linear driving element such as a pneumatic cylinder, an oil cylinder or an electric cylinder can be connected with the pick rod 610 in a way of a crank, and the linear motion of the linear driving element can be converted into the rotary motion of the pick rod 610 through the crank, so as to drive the pick rod 610 to swing.

[0084] In an embodiment of the present application, referring to Figure 1 and Figure 6 , the lifting power catwalk further comprises a second upper pipe-throwing mechanism arranged on at least one side of the base 10. The second upper pipe-throwing mechanism comprises a lead-in rod structure 71 and a pipe rack 72; the lead-in rod structure 71 comprises a lead-in rod 710 and a fourth driving member; one end of the lead-in rod 710 is close to the conveying arm assembly 30, and the other end of the lead-in rod 710 extends out of the base 10 along the width direction of the conveying arm assembly 30; the fourth driving member is connected with the lead-in rod 710 and is used for driving the lead-in rod 710 to tilt towards any one end of the lead-in rod 710; one end of the pipe rack 72 is close to the base 10 and is connected with the end of the lead-in rod 710 extending out of the base 10, and the other end of the pipe rack 72 is away from the base 10 along the width direction of the base 10; a lifting leg 720 is connected with the pipe rack 72 and is used for driving the pipe rack 72 to tilt towards any one end of the pipe rack 72.

[0085] In actual work, when the pipe is pulled up, the stop rod 340 on one side of the second upper pipe-throwing mechanism falls, the lifting leg 720 drives the pipe rack 72 to tilt towards the base 10, the pipe string rolls into the base 10 under the action of gravity, and then the lead-in rod 710 tilts towards the conveying arm assembly 30, so that the pipe string is pushed into the girder 31, and the pipe is pulled up; when the pipe is thrown, after the girder 31 falls to the horizontal, the push rod mechanism 33 is turned over towards the outside of the V-shaped groove, the pipe string is pushed to the base 10, the pipe string rolls onto the lead-in rod structure 71 by inertia and gravity, the lead-in rod 710 tilts towards the outside of the base 10, and the pipe string is pushed to the pipe rack 72, so that the pipe is thrown.

[0086] In an embodiment of the present application, the fourth driving member comprises a lead-in rod oil cylinder 711 and a lead-out rod oil cylinder 712; one end of the lead-in rod oil cylinder 711 is hinged to the base 10, and the other end of the lead-in rod oil cylinder 711 is hinged to the end of the lead-in rod 710 extending out of the base 10; one end of the lead-out rod oil cylinder 712 is hinged to the base 10, and the other end of the lead-out rod oil cylinder 712 is hinged to the end of the lead-in rod 710 close to the conveying arm assembly 30. Through the extension and retraction of the lead-in rod oil cylinder 711 and the lead-out rod oil cylinder 712, the lead-in rod 710 is tilted towards any one end of the lead-in rod 710, so that the lead-in rod 710 and the lead-out rod are realized.

[0087] In one embodiment of the present application, the pipe rack 72 has the functions of pipe string temporary storage and pipe string upending, the upper plane can store multiple drill collars or drill pipes, the pipe rack 72 is integrated with an adjusting roller 721, when the pipe strings discharged by the well team are not in order, the pipe strings can be manually pushed to be in order through the adjusting roller 721, one end of the pipe rack 72 close to the base 10 is hinged to the base 10, the lifting leg 720 is connected to the other end of the pipe rack 72 away from the base 10, the pipe rack 72 is tilted inwards or outwards through the lifting leg 720, the upending operation is completed, and the pipe rack 72 can be rotated as a whole and closely attached to the base 10 during transportation to prevent overwidth.

[0088] It can be understood that the first upending mechanism and the second upending mechanism can be selectively arranged on one side or both sides of the base 10, or the first upending mechanism can be arranged on one side of the base 10 and the second upending mechanism can be arranged on the other side of the base 10, and the specific arrangement can be selected according to actual needs.

[0089] Specifically, the mounting positions of the first upending mechanism and the second upending mechanism can be arranged on each side of the base 10, so that different upending mechanisms can be flexibly installed on both sides of the base 10 according to the site conditions, that is, the first upending mechanism and the second upending mechanism can be transposed left and right to meet the site limited working conditions and improve the adaptability of the well site.

[0090] In some optional embodiments, the lifting mechanism 50 can be arranged in different structural forms according to different actual needs.

[0091] In one embodiment of the present application, the lifting mechanism 50 includes a lower support arm 51, an upper support arm 52 and a power member 53, one end of the lower support arm 51 is hinged to the base 10, 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, and the power member 53 is used to drive the upper support arm 52 and the lower support arm 51 to be unfolded or folded relatively, so as to push the lifting main arm 20 to be lifted or lowered.

[0092] In one embodiment of the present application, the power member 53 can be any form of linear driving element such as an oil cylinder, an air cylinder or an electric push rod, one end of the power member 53 is hinged to the lower support arm 51, the other end is hinged to the upper support arm 52, and when the power member 53 is extended or retracted, the upper support arm 52 and the lower support arm 51 are driven to be folded or unfolded relatively, so as to realize the lifting and lowering of the lifting main arm 20.

[0093] In the present embodiment, the power member 53 is an oil cylinder.

[0094] In one embodiment of the present application, a pull rod sensor can be integrated between the upper support arm 52 and the lower support arm 51 to detect the rotation position of the lifting main arm 20 in real time, and a pull wire sensor can be integrated between the lifting main arm 20 and the cloud beam 31 to detect the extension position of the cloud beam 31 in real time, so as to facilitate calibration and control.

[0095] It can be understood that the different embodiments or examples described in the specification and the features of the different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0096] The lifting power catwalk provided by the embodiment of the present application can adjust the lifting height of the lifting main arm 20 through the lifting mechanism 50, and can adjust the distance of the conveying arm assembly 30 extending from the lifting main arm 20 through the driving mechanism 40. When the drilling platform height changes, the lifting height of the lifting main arm 20 and the distance of the conveying arm assembly 30 extending from 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, so that the installation position of the catwalk does not need to be adjusted to meet the operation requirements of the drilling platform with different heights in a large range, the labor intensity of the workers is reduced, and the cost is reduced.

[0097] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A power lift cat, characterized by, The base (10) is provided with a lifting main arm (20) hinged at one end to the base (10), a conveying arm assembly (30) adapted to convey a pipe column along the length direction of the conveying arm assembly (30), the conveying arm assembly (30) being arranged along the length direction of the lifting main arm (20) and being 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) having a driving end connected to the conveying arm assembly (30) and being adapted to drive the conveying arm assembly (30) to reciprocally slide along the lifting main arm (20), and a lifting mechanism (50) having a driving end connected to the lifting main arm (20) and being adapted to drive the lifting main arm (20) to rotate about the hinge point to lift or lower. The conveying arm assembly (30) comprises a cloud beam (31) slidably connected to the lifting main arm (20), the other side of the cloud beam (31) relative to the lifting main arm (20) being a supporting surface, the supporting surface being provided with a V-shaped groove extending along the length direction of the cloud beam (31) and adapted to accommodate the pipe column, and a sliding shoe mechanism (32) comprising a sliding shoe slidably connected to the cloud beam (31) and a driving component adapted to drive the sliding shoe to reciprocally slide along the length direction of the cloud beam (31). The conveying arm assembly (30) further comprises a tong head device (35) connected to the end of the cloud beam (31) away from the hinge point. The tong head device (35) comprises a tong head capable of opening and closing, a power component adapted to drive the tong head to open and close, and a lifting member adapted to drive the tong head to lift and lower. The base (10) is further provided with a first upper drill dropping mechanism arranged on at least one side of the base (10), the first upper drill dropping mechanism comprising a pick rod structure (61) comprising a pick rod (610) hinged at one end to the base (10) and extending from the base (10) along the width direction of the conveying arm assembly (30), and a third driving member connected to the pick rod (610) and adapted to drive the pick rod (610) to swing in the height direction of the base (10), and a lap rod structure (62) comprising a plurality of lap rods (620) arranged along the length direction of the base (10), one end of each of the lap rods (620) being connected to the base (10) and the other end of each of the lap rods (620) extending from the base (10) along the width direction of the conveying arm assembly (30) and being inclined towards the bottom of the base (10). The lifting main arm (20) is connected with 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 the length direction of the cloud beam (31). The composite roller (21) is fitted 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). ​ ​ ​ ​ ​ ​ ​ 2. The lift powered catwalk of claim 1, wherein, ​ ​ 3. The lift powered catwalk of claim 1, wherein, The cloud beam (31) comprises 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.

4. The lift powered cat in accordance with claim 3, wherein, Further comprising a positioning structure for positioning the unfolded first section (312) and the second section (313).

5. The lift powered catwalk of claim 1, wherein, 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, the push rod mechanism (33) comprises a flap (330) and a first driving member, the flap (330) extends from one side wall to the other side wall of the V-shaped groove, and the first driving member is connected with the flap (330) and used for driving the flap (330) to turn over towards the outside of the V-shaped groove.

6. The lift powered cat in accordance with claim 5, wherein, The conveying arm assembly (30) further comprises: A stop rod mechanism (34) is arranged on both sides of the V-shaped groove in the width direction; the stop rod mechanism (34) comprises a stop rod (340) and a second driving member; the second driving member is connected with the stop rod (340) and used for driving the stop rod (340) to extend out of the support surface or retract into the bottom of the cloud beam (31).

7. The lift powered catwalk of claim 1, wherein, Further comprising a second upper drill throwing mechanism arranged on at least one side of the base (10); the second upper drill throwing mechanism comprises: A rod feeding structure (71) comprising a rod (710) and a fourth driving member; one end of the 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 with the rod (710) and used for driving the rod (710) to tilt towards any end of itself; A pipe rack (72) is arranged on one end of the base (10) and connected with the end of the 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); the pipe rack (72) is connected with a lifting leg (720) and used for driving the pipe rack (72) to tilt towards any end of itself.

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