Pipe rod positioning device

Abstract

The present invention provides a pipe-rod alignment device, which belongs to the field of oil production process technology. The pipe-rod alignment device includes a bottom plate and two alignment mechanisms; the alignment mechanism includes a top plate, an alignment rod, a semi-circular alignment block, and a telescopic cylinder; the end of the first end of the alignment rod is pivotally connected to a side of the top plate close to the bottom plate, the end of the second end of the alignment rod is pivotally connected to one end of the telescopic cylinder, the other end of the telescopic cylinder is pivotally connected to a side of the top plate close to the bottom plate, the semi-circular alignment block is connected to the middle part of the alignment rod, and the semi-circular alignment blocks of the two alignment mechanisms are used to open and close relatively under the drive of the alignment rods of the two alignment mechanisms. After closing, the two semi-circular alignment blocks are coaxial with the semicircular notch of the top plate. In the process of the two semi-circular alignment blocks closing relative to each other, the semi-circular alignment block pushes the oil pipe or drill pipe to align the oil pipe or drill pipe and center the oil pipe or drill pipe, so that the chuck can smoothly clamp the oil pipe or drill pipe, which is convenient for the oil pipe or drill pipe to be taken out or put in.

Description

Technical Field

[0001] The present invention relates to the technical field of oil production technology, and in particular to a pipe-rod correcting device. Background Art

[0002] Taking the pulling out of oil pipes as an example, it is a common process in underground operations of petroleum systems. Chucks are usually used to pull out oil pipes. The load-bearing capacity of some chucks is not less than 75 tons. During the pulling out process, a section of oil pipe is first pulled out from the well by the equipment, and then the oil pipe is clamped by the chuck teeth of the chuck. The weight of the oil pipe is borne by the chuck. Then the pulled out section of oil pipe is disconnected from the section of oil pipe clamped by the chuck, and then the chuck releases the oil pipe again, and then another section of oil pipe is pulled out by the equipment, and so on, so that all the oil pipes are pulled out from the well section by section.

[0003] There is a large annulus between the oil pipe and the side wall of the well, and the oil pipe tends to deviate to one side of the well wall or even stick to the well wall. When the chuck teeth of the chuck fall down and jam the oil pipe, they will push the oil pipe to the center, but the oil pipe has a large deadweight. If the distance of the oil pipe deviating from the center is slightly larger, the chuck teeth of the chuck will not fall smoothly, and the oil pipe cannot be pulled out smoothly. Summary of the invention

[0004] The disclosed embodiment provides a pipe-rod straightening device, which can straighten the oil pipe and drill rod during the process of pulling out or running in the oil pipe and drill rod. The technical solution is as follows:

[0005] The embodiment of the present disclosure provides a pipe rod positioning device, the pipe rod positioning device comprises a base plate and two straightening mechanisms, the two straightening mechanisms are both installed on the first surface of the base plate;

[0006] The bottom plate has a center hole and a through slot, wherein the center hole is located in the middle of the bottom plate, and the through slot extends from the center hole to one side of the bottom plate along the radial direction of the center hole;

[0007] The two straightening mechanisms are symmetrically distributed about the central axis of the through slot;

[0008] The straightening mechanism comprises a top plate, a straightening rod, a semi-circular straightening block, and a telescopic oil cylinder;

[0009] The top plate is pivotally connected to the bottom plate and can be rotated to be parallel to the bottom plate. One side of the top plate has a semicircular notch. When the top plate is parallel to the bottom plate, the semicircular notch is coaxial with the center hole.

[0010] The end of the first end of the righting rod is pivotally connected to a side of the top plate close to the bottom plate, the end of the second end of the righting rod is pivotally connected to one end of the telescopic cylinder, the other end of the telescopic cylinder is pivotally connected to a side of the top plate close to the bottom plate, the telescopic cylinder is used to drive the righting rod to rotate around the end of the first end of the righting rod, and the rotation axis of the righting rod is perpendicular to the top plate;

[0011] The inner diameter of the semi-annular straightening block is smaller than the diameter of the semi-circular notch. The semi-annular straightening block is connected to the middle part of the righting rod. The semi-annular straightening blocks of the two righting mechanisms are used to open and close relatively under the drive of the righting rods of the two righting mechanisms. When the two semi-annular straightening blocks are in the closed state, the two semi-annular straightening blocks are coaxial with the semi-circular notch.

[0012] Optionally, the top plate has a first side edge and a second side edge that are opposite to each other, and a third side edge and a fourth side edge connecting the first side edge and the second side edge, and the semicircular notch is located at the first side edge;

[0013] A first hinge, a second hinge and a third hinge are connected to a side of the top plate close to the bottom plate, the first hinge is located at the second side, the second hinge is located at the connection between the first side and the third side, and the third hinge is located at the connection between the second side and the fourth side.

[0014] Optionally, the straightening mechanism also includes a first support plate and a second support plate, the first support plate and the second support plate are both vertically connected to a side of the top plate close to the bottom plate, the first support plate is connected to the third side, and the second support plate is connected to the fourth side.

[0015] Optionally, a fourth hinge is provided on a surface of at least one of the first support plate and the second support plate, and the fourth hinge is detachably connected to the bottom plate.

[0016] Optionally, the outer wall of the semi-annular straightening block has a coaxial arc-shaped groove, the middle part of the straightening rod has an arc portion, the center of the arc portion is located on the side of the straightening rod close to the central axis of the through groove, and the arc portion is located in the arc-shaped groove.

[0017] Optionally, the straightening mechanism also includes a limiting slider and a limiting protrusion, the limiting slider is connected to the outer side of the arc part, the limiting protrusion is connected to the side of the top plate close to the bottom plate, and is located on the side of the straightening rod away from the central axis of the through groove, and the limiting protrusion has a limiting groove on one side of the straightening rod close to the side of the limiting protrusion, and the limiting slider is located in the limiting groove.

[0018] Optionally, the semi-annular straightening block has a first through hole, which passes through the side wall of the arc-shaped groove, and the arc portion has a second through hole, and the arc portion and the semi-annular straightening block are connected by bolts located in the first through hole and the second through hole.

[0019] Optionally, the straightening mechanism comprises a plurality of semi-annular straightening blocks having different inner diameters, and the plurality of semi-annular straightening blocks can be selectively connected to the circular arc portion.

[0020] Optionally, the pipe rod alignment device also includes a lighting mechanism, which includes a mounting rod, a mounting box and a light source, one end of the mounting rod is connected to the mounting box, the light source is located in the mounting box, the other end of the mounting rod is connected to one side of the base plate, the mounting box is located on the first surface side of the base plate, and the side wall of the mounting box close to the axis of the center hole has a strip light outlet hole, and the extension direction of the strip light outlet hole is perpendicular to the axis of the center hole.

[0021] Optionally, the pipe rod positioning device further comprises a mounting bracket, wherein the mounting bracket is connected to a second surface of the base plate away from the first surface, and the mounting bracket is used to connect the pipe rod positioning device to a chuck.

[0022] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0023] By arranging two straightening mechanisms on the first surface of the bottom plate, the center hole and the through groove of the bottom plate are used to put the bottom plate outside the oil pipe or drill rod, and the two symmetrically distributed straightening mechanisms can straighten the oil pipe or drill rod. Among them, the semicircular notch of the top plate in the straightening mechanism is used for the oil pipe or drill rod to pass through, and the straightening rod in the straightening mechanism can rotate under the extension and contraction of the telescopic cylinder. By arranging a semi-circular straightening block in the middle of the straightening rod, when the telescopic cylinders of the two straightening mechanisms are extended and contracted, the two semi-circular straightening blocks are relatively closed, and after closing, the two semi-circular straightening blocks are coaxial with the semi-circular notch of the top plate. In the process of the two semi-circular straightening blocks being relatively closed, the semi-circular straightening block pushes the oil pipe or drill rod, straightens the oil pipe or drill rod, and centers the oil pipe or drill rod, so that the chuck can smoothly clamp the oil pipe or drill rod, which is convenient for the oil pipe or drill rod to be taken out or put in. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 1It is a structural schematic diagram of a pipe rod alignment device provided by an embodiment of the present disclosure;

[0026] Figure 2 is a top view of a base plate provided by an embodiment of the present disclosure;

[0027] Figure 3 is a bottom view of a righting mechanism provided by an embodiment of the present disclosure;

[0028] Figure 4 is a side view of a base plate provided by an embodiment of the present disclosure;

[0029] Figure 5 It is a partial structural schematic diagram of a pipe rod alignment device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0031] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] Figure 1 Schematic diagram of the structure of a pipe rod alignment device provided by an embodiment of the present disclosure. Figure 1 As shown, the pipe rod alignment device comprises a base plate 10 and two straightening mechanisms 20. The two straightening mechanisms 20 are both mounted on the first surface 10a of the base plate 10.

[0033] Figure 2 It is a top view of a base plate provided by an embodiment of the present disclosure. Figure 2 Two dotted boxes schematically represent two straightening mechanisms 20. Figure 2As shown, the bottom plate 10 has a center hole 101 and a through slot 102 . The center hole 101 is located in the middle of the bottom plate 10 , and the through slot 102 extends from the center hole 101 to one side of the bottom plate 10 along the radial direction of the center hole 101 .

[0034] The two straightening mechanisms 20 are symmetrically distributed about the center axis m of the through slot 102 . Figure 3 is a bottom view of a straightening mechanism provided by an embodiment of the present disclosure. Figure 3 As shown, the straightening mechanism 20 includes a top plate 21 , a straightening rod 22 , a semi-annular straightening block 23 , and a telescopic cylinder 24 . Figure 3 A semi-annular straightening block 23 in another straightening mechanism 20 is schematically shown by a dotted line.

[0035] The top plate 21 is pivotally connected to the bottom plate 10 and can rotate to be parallel to the bottom plate 10 . A side edge of the top plate 21 has a semicircular notch 21 e . When the top plate 21 is parallel to the bottom plate 10 , the semicircular notch 21 e is coaxial with the center hole 101 .

[0036] The end of the first end of the straightening rod 22 is pivotally connected to a side of the top plate 21 close to the bottom plate 10, the end of the second end of the straightening rod 22 is pivotally connected to one end of the telescopic cylinder 24, and the other end of the telescopic cylinder 24 is pivotally connected to a side of the top plate 21 close to the bottom plate 10. The telescopic cylinder 24 is used to drive the straightening rod 22 to rotate around the end of the first end of the straightening rod 22, and the rotation axis of the straightening rod 22 is perpendicular to the top plate 21.

[0037] The inner diameter of the semi-annular straightening block 23 is smaller than the diameter of the semi-circular notch 21e. The semi-annular straightening block 23 is connected to the middle part of the straightening rod 22. The semi-annular straightening blocks 23 of the two straightening mechanisms 20 are used to open and close relatively under the drive of the straightening rods 22 of the two straightening mechanisms 20. When the two semi-annular straightening blocks 23 are in the closed state, the two semi-annular straightening blocks 23 are coaxial with the semi-circular notch 21e.

[0038] By arranging two straightening mechanisms on the first surface of the bottom plate, the center hole and the through groove of the bottom plate are used to put the bottom plate outside the oil pipe or drill rod, and the two symmetrically distributed straightening mechanisms can straighten the oil pipe or drill rod. Among them, the semicircular notch of the top plate in the straightening mechanism is used for the oil pipe or drill rod to pass through, and the straightening rod in the straightening mechanism can rotate under the extension and contraction of the telescopic cylinder. By arranging a semi-circular straightening block in the middle of the straightening rod, when the telescopic cylinders of the two straightening mechanisms are extended and contracted, the two semi-circular straightening blocks are relatively closed, and after closing, the two semi-circular straightening blocks are coaxial with the semi-circular notch of the top plate. In the process of the two semi-circular straightening blocks being relatively closed, the semi-circular straightening block pushes the oil pipe or drill rod, straightens the oil pipe or drill rod, and centers the oil pipe or drill rod, so that the chuck can smoothly clamp the oil pipe or drill rod, which is convenient for the oil pipe or drill rod to be taken out or put in.

[0039] In addition, the top plate 21 is pivotally connected to the bottom plate 10. By flipping the top plate 21, the two straightening mechanisms 20 are flipped, thereby completely exposing the center hole of the bottom plate 10, making it easy to pull out or lower downhole tools with larger diameters.

[0040] Optionally, the diameter of the semicircular notch 21e is 100 mm to 160 mm.

[0041] The width of the through slot 102 is not less than the diameter of the center hole of the chuck 1 . Exemplarily, the width of the through slot 102 is 90 mm to 100 mm.

[0042] Optionally, the lifting force of the telescopic cylinder 24 is greater than 300 kg to ensure that the pipe-rod straightening device can generate a sufficiently large force to straighten the oil pipe and the drill rod.

[0043] The pipe and rod positioning device in the embodiment of the present disclosure is at least suitable for pulling out and running in oil pipes and drill rods. For ease of description, the embodiment of the present disclosure takes pulling out of oil pipes as an example. The pivoting mentioned in the embodiment of the present disclosure is connected by pins, such as round pins.

[0044] like Figure 2 As shown, the base plate 10 is rectangular. Figure 4 is a side view of a base plate provided by an embodiment of the present disclosure. Figure 2 and Figure 4 The first surface 10a of the bottom plate 10 is symmetrically provided with two fifth hinges 103 about the central axis m, and the fifth hinge 103 is used to be pivotally connected with the top plate 21. The first surface 10a of the bottom plate 10 is also symmetrically provided with two sixth hinges 104 about the central axis m.

[0045] The pipe-rod alignment device further comprises a mounting bracket 29 , which is connected to a second surface 10 b of the base plate 10 away from the first surface 10 a , and is used to connect the pipe-rod alignment device to the chuck 1 .

[0046] Optionally, the mounting bracket 29 includes four support rods 291 , which are respectively located at four corners of the base plate 10 to stably support the base plate 10 .

[0047] Optionally, one end of the support rod 291 is pivotally connected to the base plate 10, and the other end of the support rod 291 is welded to the chuck 1. In this way, when the pipe rod positioning device needs to be repaired, the connection between the base plate 10 and the support rod 291 can be disconnected, and the part of the pipe rod positioning device except the support rod 291 can be removed for repair.

[0048] like Figure 3 As shown, the top plate 21 has a first side 21a, a second side 21b, and a third side 21c and a fourth side 21d connecting the first side 21a and the second side 21b.

[0049] A first hinge 211, a second hinge 212 and a third hinge 213 are connected to one side of the top plate 21 close to the bottom plate 10. The semicircular notch 21e is located at the first side edge 21a. The first hinge 211 is located at the second side edge 21b, the second hinge 212 is located at the connection between the first side edge 21a and the third side edge 21c, and the third hinge 213 is located at the connection between the second side edge 21b and the fourth side edge 21d.

[0050] When the top plates 21 of the two straightening mechanisms 20 are both in a state of being parallel to the bottom plate 10 , the semicircular notches 21 e of the two top plates 21 form a circular hole for the oil pipe to pass through.

[0051] The first hinge 211 is pivotally connected to the fifth hinge 103 on the bottom plate 10. When the top plate 21 is turned over, the straightening mechanism 20 can rotate around the first hinge 211, so that the center hole 101 on the bottom plate 10 is completely exposed, so that the downhole tool with a larger diameter will not be blocked by the straightening mechanism 20 when it is lowered or pulled out. During the extension and retraction of the telescopic cylinder 24, the straightening rod 22 rotates around the second hinge 212, and the telescopic cylinder 24 rotates around the third hinge 213.

[0052] As an example, Figure 3 As shown, when the telescopic cylinder 24 is in the extended state, the two semi-annular straightening blocks 23 are closed, and the semi-annular straightening blocks 23 are coaxial with the semicircular notch 21e. By controlling the telescopic cylinder 24 to shorten, the two semi-annular straightening blocks 23 can be separated.

[0053] The pipe rod correcting device also includes a hydraulic control system for controlling the extension and retraction of the telescopic oil cylinder 24 .

[0054] like Figure 3 As shown, the hydraulic control system includes a control valve 241, which is connected to the telescopic cylinder 24 and is used to control the telescopic cylinder 24. Exemplarily, the control valve 241 is a three-position four-way valve, which has three states. When the control valve 241 is in the first state, the hydraulic control system controls the telescopic cylinder 24 to extend, when the control valve 241 is in the second state, the hydraulic control system controls the telescopic cylinder 24 to shorten, and when the control valve 241 is in the third state, the hydraulic control system controls the telescopic cylinder 24 to maintain the current length.

[0055] Optionally, the control valve 241 is connected to the telescopic cylinder 24 via a high-pressure hose. During the operation of the pipe rod positioning device, the telescopic cylinder 24 must be able to generate a large thrust, so the pressure in the hydraulic control system is relatively high. A high-pressure hose is used to connect the control valve 241 and the telescopic cylinder 24 to avoid hose bursting.

[0056] Exemplarily, the pressure that the high-pressure hose can withstand is not less than 25 MPa.

[0057] like Figure 3 As shown, the straightening mechanism 20 further includes a first support plate 251 and a second support plate 252. The first support plate 251 and the second support plate 252 are both vertically connected to a side of the top plate 21 close to the bottom plate 10, the first support plate 251 is connected to the third side 21c, and the second support plate 252 is connected to the fourth side 21d.

[0058] When the top plate 21 is in a state parallel to the bottom plate 10, the first support plate 251 and the second support plate 252 can be supported on the bottom plate 10, and the first support plate 251, the second support plate 252, the top plate 21 and the bottom plate 10 form a cavity to provide protection for structures such as the telescopic cylinder 24 and the straightening rod 22.

[0059] like Figure 3 As shown, a fourth hinge 214 is disposed on the surface of the first support plate 251 , and the fourth hinge 214 is detachably connected to the bottom plate 10 .

[0060] After the top plate 21 is flipped to be parallel to the bottom plate 10, the fourth hinge 214 is connected to the bottom plate 10, so that the righting mechanism 20 is stably fixed on the top plate 21. When the righting mechanism 20 needs to be flipped, the connection between the fourth hinge 214 and the bottom plate 10 is disconnected. Exemplarily, the fourth hinge 214 is pivotally connected to the sixth hinge 104 on the bottom plate 10.

[0061] Optionally, the fourth hinges 214 of the two straightening mechanisms 20 are pivotally connected to the two sixth hinges 104 on the base plate 10 via the same pin shaft to reduce the number of pin shafts.

[0062] Optionally, the fourth hinge 214 is located on a side of the first support plate 251 away from the second support plate 252 .

[0063] In other implementations, the surface of the second support plate 252 away from the first support plate 251 is provided with a fourth hinge 214. Whether the fourth hinge 214 is provided on the first support plate 251 or the second support plate 252, both can play the same role. Alternatively, the fourth hinge 214 is provided on both the first support plate 251 and the second support plate 252, so that the straightening mechanism 20 is more stably fixed on the top plate 21.

[0064] Figure 5 It is a partial structural schematic diagram of a pipe rod alignment device provided in an embodiment of the present disclosure. Figure 5 The figure shows the straightening rod 22 and the semi-circular straightening block 23. Figure 5As shown, the outer wall of the semi-annular straightening block 23 has a coaxial arc groove 23a, and the middle part of the straightening rod 22 has an arc portion 221, the center of the arc portion 221 is located on the side of the center axis m of the straightening rod 22 close to the through groove 102, and the arc portion 221 is located in the arc groove 23a.

[0065] The arc portion 221 in the middle of the straightening rod 22 is inserted into the arc groove 23a on the outer wall of the semi-annular straightening block 23, so that the semi-annular straightening block 23 can be more stably installed on the straightening rod 22. When the semi-annular straightening block 23 pushes the oil pipe, the force acting on the semi-annular straightening block 23 can be dispersed to the entire arc portion 221.

[0066] Optionally, the inner diameter of the arc portion 221 is the same as the radius of the arc groove 23 a , so that after the arc portion 221 is inserted into the arc groove 23 a , it can be in contact with the bottom of the arc groove 23 a .

[0067] In the embodiment of the present disclosure, the side of the arc portion 221 close to the center is the inner side of the arc portion 221, and the side of the arc portion 221 away from the center is the outer side of the arc portion 221. The arc portion 221 has a certain width in its radial direction, and the radius of the side of the arc portion 221 close to the center is the inner diameter of the arc portion 221.

[0068] like Figure 5 As shown, the semi-annular straightening block 23 has a first through hole 23b, which passes through the side wall of the arc groove 23a. The arc portion 221 has a second through hole 221a, and the arc portion 221 and the semi-annular straightening block 23 are connected by bolts 27 located in the first through hole 23b and the second through hole 221a.

[0069] After the arc portion 221 is inserted into the arc groove 23a of the semi-annular straightening block 23, the first through hole 23b is aligned with the second through hole 221a, so that the bolt 27 can be inserted into the first through hole 23b and the second through hole 221a, thereby connecting the semi-annular straightening block 23 to the straightening rod 22. After the bolt 27 is removed, the semi-annular straightening block 23 can be quickly removed.

[0070] Optionally, the first through hole 23 b is a countersunk screw hole, and the bolt 27 is a countersunk bolt, so that the head of the bolt 27 does not protrude from the surface of the semi-annular straightening block 23 .

[0071] Optionally, the straightening mechanism 20 includes a plurality of semi-annular straightening blocks 23 with different inner diameters, and the plurality of semi-annular straightening blocks 23 can be selectively connected to the circular arc portion 221 .

[0072] Since the arc portion 221 and the semi-annular straightening block 23 are detachable, the pipe-rod straightening device can be adapted to oil pipes of different diameters by replacing the semi-annular straightening blocks 23 with different inner diameters.

[0073] like Figure 5 As shown, the straightening mechanism 20 further includes a limiting slider 261 and a limiting protrusion 262. The limiting slider 261 is connected to the outer side of the arc portion 221, the limiting protrusion 262 is connected to the side of the top plate 21 close to the bottom plate 10, and the limiting protrusion 262 is located on the side of the straightening rod 22 away from the central axis m of the through groove 102, and the side of the limiting protrusion 262 close to the straightening rod 22 has a limiting slide groove 262a, and the limiting slider 261 is located in the limiting slide groove 262a.

[0074] Although the first end of the righting rod 22 and the other end of the telescopic cylinder 24 are both pivotally connected to the top plate 21, the second end of the righting rod 22 and one end of the telescopic cylinder 24 are both suspended, which makes it possible for the righting rod 22 to tilt when the telescopic cylinder 24 is extended and retracted to drive the righting rod 22 to rotate. By providing a limiting slider 261 and a limiting protrusion 262 that cooperate with each other, the limiting slider 261 slides in the limiting groove 262a on the limiting protrusion 262, and the limiting protrusion 262 provides a certain support to the limiting slider 261, thereby preventing the righting rod 22 from tilting.

[0075] like Figure 1 As shown, the pipe rod positioning device further includes a lighting mechanism 28. The lighting mechanism 28 is used to provide lighting when the light is poor, so as to facilitate the determination of the position of the coupling of the oil pipe.

[0076] The lighting mechanism 28 includes a mounting rod 281, a mounting box 282 and a light source 283. One end of the mounting rod 281 is connected to the mounting box 282. The light source 283 is located in the mounting box 282. The other end of the mounting rod 281 is connected to one side of the bottom plate 10. The mounting box 282 is located on one side of the first surface 10a of the bottom plate 10. The side wall of the mounting box 282 on the side close to the axis of the center hole 101 has a strip-shaped light-emitting hole 282a. The extension direction of the strip-shaped light-emitting hole 282a is perpendicular to the axis of the center hole 101.

[0077] The light emitted by the light source 283 is emitted from the installation box 282 through the strip-shaped light-emitting hole 282a, and can illuminate the pulled-out oil pipe. Each time the oil pipe is pulled out for a certain length, it will be clamped by the chuck 1 to remove the topmost oil pipe. When the chuck 1 clamps the oil pipe, the distance between the installation box 282 and the bottom plate 10 is adjusted so that the light emitted from the strip-shaped light-emitting hole 282a can just illuminate the position of the oil pipe coupling, which is convenient for removing the oil pipe. In the subsequent process of pulling out the oil pipe, when the oil pipe coupling reaches the position where the light is irradiated, the oil pipe is stopped from being lifted up, and the oil pipe is clamped by the chuck 1 again.

[0078] Optionally, the light source 283 is an explosion-proof lamp to adapt to the working environment near the oil well and improve the safety of the construction process.

[0079] Optionally, a power supply is also provided in the installation box 282 , and the power supply is used to supply power to the light source 283 .

[0080] Exemplarily, the mounting box 282 is a metal box to provide better protection for the light source 283 and the power supply to prevent the light source 283 and the power supply from being damaged.

[0081] like Figure 1 As shown, the light source 283 is connected to the power switch 285 via a power line 284 .

[0082] Optionally, the mounting rod 281 is a hollow rod, and the power cord 284 passes through the mounting rod 281, one end of which is connected to the power switch 285, and the other end is connected to the light source 283. The mounting rod 281 provides protection for the power cord 284, and can also prevent the power cord 284 from being scattered in a mess at the wellhead.

[0083] Illustratively, the mounting rod 281 is a hollow metal rod.

[0084] Optionally, a support 105 is provided at the edge of the bottom plate 10, the support 105 has a socket 105a, a locking nail 106 is connected to the support 105, the locking nail 106 is arranged along the radial direction of the socket 105a, the locking nail 106 is threadedly connected to the support 105, and one end of the locking nail 106 is located in the socket 105a. The mounting rod 281 is inserted in the socket 105a. The locking nail 106 is used to tighten the side wall of the mounting rod 281.

[0085] After loosening the locking nail 106, the position of the mounting rod 281 can be adjusted to change the height of the mounting box 282. After the mounting box 282 is adjusted to a suitable height, the locking nail 106 is tightened to fix the mounting rod 281.

[0086] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A pipe rod positioning device, characterized in that: It comprises a base plate (10) and two straightening mechanisms (20), wherein the two straightening mechanisms (20) are both installed on a first surface (10a) of the base plate (10); The bottom plate (10) has a center hole (101) and a through groove (102), wherein the center hole (101) is located in the middle of the bottom plate (10), and the through groove (102) extends from the center hole (101) to a side edge of the bottom plate (10) along the radial direction of the center hole (101); The two straightening mechanisms (20) are symmetrically distributed about the central axis (m) of the through slot (102); The straightening mechanism (20) comprises a top plate (21), a straightening rod (22), a semi-annular straightening block (23), and a telescopic oil cylinder (24); The top plate (21) is pivotally connected to the bottom plate (10) and can be rotated to be parallel to the bottom plate (10); one side of the top plate (21) has a semicircular notch (21e); when the top plate (21) is parallel to the bottom plate (10), the semicircular notch (21e) is coaxial with the center hole (101); The end of the first end of the righting rod (22) is pivotally connected to a surface of the top plate (21) close to the bottom plate (10), the end of the second end of the righting rod (22) is pivotally connected to one end of the telescopic oil cylinder (24), the other end of the telescopic oil cylinder (24) is pivotally connected to a surface of the top plate (21) close to the bottom plate (10), the telescopic oil cylinder (24) is used to drive the righting rod (22) to rotate around the end of the first end of the righting rod (22), and the rotation axis of the righting rod (22) is perpendicular to the top plate (21); The inner diameter of the semi-annular straightening block (23) is smaller than the diameter of the semi-circular notch (21e); the semi-annular straightening block (23) is connected to the middle part of the straightening rod (22); the semi-annular straightening blocks (23) of the two straightening mechanisms (20) are used to open and close relatively under the drive of the straightening rods (22) of the two straightening mechanisms (20); when the two semi-annular straightening blocks (23) are in a closed state, the two semi-annular straightening blocks (23) are coaxial with the semi-circular notch (21e).

2. The pipe rod positioning device according to claim 1, characterized in that: The top plate (21) has a first side edge (21a), a second side edge (21b) and a third side edge (21c) and a fourth side edge (21d) connecting the first side edge (21a) and the second side edge (21b), and the semicircular notch (21e) is located at the first side edge (21a); A first hinge (211), a second hinge (212) and a third hinge (213) are connected to a side of the top plate (21) close to the bottom plate (10); the first hinge (211) is located at the second side edge (21b); the second hinge (212) is located at the connection between the first side edge (21a) and the third side edge (21c); and the third hinge (213) is located at the connection between the second side edge (21b) and the fourth side edge (21d).

3. The pipe rod positioning device according to claim 2, characterized in that: The straightening mechanism (20) further comprises a first support plate (251) and a second support plate (252), wherein the first support plate (251) and the second support plate (252) are both vertically connected to a side of the top plate (21) close to the bottom plate (10), the first support plate (251) is connected to the third side edge (21c), and the second support plate (252) is connected to the fourth side edge (21d).

4. The pipe rod positioning device according to claim 3, characterized in that: A fourth hinge (214) is provided on the surface of at least one of the first support plate (251) and the second support plate (252), and the fourth hinge (214) is detachably connected to the bottom plate (10).

5. The pipe rod positioning device according to claim 1, characterized in that: The outer wall of the semi-annular straightening block (23) has a coaxial arc-shaped groove (23a), and the middle part of the straightening rod (22) has an arc portion (221), the center of the arc portion (221) is located on the side of the center axis (m) of the straightening rod (22) close to the through groove (102), and the arc portion (221) is located in the arc-shaped groove (23a).

6. The pipe rod correcting device according to claim 5, characterized in that: The straightening mechanism (20) further comprises a limiting slide block (261) and a limiting protrusion (262); the limiting slide block (261) is connected to the outer side of the arc portion (221); the limiting protrusion (262) is connected to a side of the top plate (21) close to the bottom plate (10), and is located on a side of the straightening rod (22) away from the central axis (m) of the through groove (102); a side of the limiting protrusion (262) close to the straightening rod (22) is provided with a limiting slide groove (262a), and the limiting slide block (261) is located in the limiting slide groove (262a).

7. The pipe rod positioning device according to claim 5, characterized in that: The semi-annular straightening block (23) has a first through hole (23b), and the first through hole (23b) passes through the side wall of the arc-shaped groove (23a). The arc portion (221) has a second through hole (221a). The arc portion (221) and the semi-annular straightening block (23) are connected by bolts (27) located in the first through hole (23b) and the second through hole (221a).

8. The pipe rod correcting device according to claim 7, characterized in that: The straightening mechanism (20) comprises a plurality of semi-annular straightening blocks (23) having different inner diameters, and the plurality of semi-annular straightening blocks (23) can be selectively connected to the circular arc portion (221).

9. The pipe rod correcting device according to any one of claims 1 to 8, characterized in that: The pipe rod alignment device also includes a lighting mechanism (28), which includes a mounting rod (281), a mounting box (282) and a light source (283). One end of the mounting rod (281) is connected to the mounting box (282), and the light source (283) is located in the mounting box (282). The other end of the mounting rod (281) is connected to a side edge of the base plate (10). The mounting box (282) is located on a side of the first surface (10a) of the base plate (10). The side wall of the mounting box (282) close to the axis of the center hole (101) has a strip light emitting hole (282a), and the extension direction of the strip light emitting hole (282a) is perpendicular to the axis of the center hole (101).

10. The pipe rod correcting device according to any one of claims 1 to 8, characterized in that: The pipe rod alignment device further comprises a mounting bracket (29), wherein the mounting bracket (29) is connected to a second surface (10b) of the base plate (10) away from the first surface (10a), and the mounting bracket (29) is used to connect the pipe rod alignment device to a chuck.

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