Rod tube release device

Abstract

The present invention is a rod tube unbundling device, which comprises a base, wheel arms are respectively arranged on both sides of the base, one end of the wheel arm is hinged to the base, the wheel arm extends to the front of the base and a first roller is pivoted at the other end thereof, a first motor capable of driving the first roller to rotate is arranged on the wheel arm, a second roller is pivoted at the front of the base between the two wheel arms, a second motor capable of driving the second roller to rotate is arranged on the base, the base and the two wheel arms are combined to form an embracing space; a retractable clamping arm and a retractable clamping assembly are respectively arranged on the top and bottom of the base, a clamping cylinder is rotatably arranged on the clamping arm; the clamping cylinder and the clamping assembly can be extended into the embracing space so that the outer wall of the clamping cylinder abuts against the outer wall of the second roller. The present invention solves the technical problems that the unbundling operation of the wellhead rod tube is complicated, the operation efficiency is low, the integration of the rod tube unbundling equipment is low, and the rod tubes of multiple specifications cannot be uniformly unbundled.

Description

Technical Field

[0001] The invention relates to the technical field of oil production engineering, and further to a rod and pipe buckling device, in particular to a rod and pipe buckling device with multiple specifications at a wellhead for well repair. Background Art

[0002] Well repair rig operation involves the lifting and lowering of sucker rods and tubings. During the lifting and lowering process, the sucker rods and tubings need to be made and broken out, which is a relatively tedious task. At present, most of the make-up and break-out work at the well repair site is done by workers, especially the make-up and break-out of sucker rods is basically done manually, and the automation of tubing operations is not high. Therefore, at this stage, there is no integrated tubing-rod make-up and break-out processing device that can adapt to both sucker rods and tubings.

[0003] The existing equipment has the following shortcomings:

[0004] 1. The existing sucker rod and tubing tie-off devices have a low degree of integration or have not been integrated. Separate equipment is used for tie-off operations. During well repair operations, the equipment needs to be replaced according to the operation conditions, which reduces the operation efficiency and occupies a large space at the wellhead.

[0005] Second, due to the different specifications of sucker rods and tubing, it is impossible to use one device to uniformly make and break out the rods and tubing of various specifications, which brings great obstacles to the automation of workover rigs;

[0006] 3. At present, the various pipe string breakout equipment used in China has a low degree of automation and mainly relies on manual operation by operators, which requires the operators to have a high level of proficiency.

[0007] Currently, no effective solution has been given to the problems in related technologies of complicated make-up and make-out operations of wellhead rod and pipe, low operating efficiency, low integration of rod and pipe make-up and make-out equipment, and inability to uniformly make-up and make-out processing of rod and pipe of multiple specifications.

[0008] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a rod tube buckle-breaking device to overcome the defects of the prior art. Summary of the invention

[0009] The object of the present invention is to provide a rod and pipe making and breaking device, which can automatically make and break rods and pipes of various specifications at the wellhead, is safe and stable, has a high degree of automation, greatly reduces the labor intensity of the staff, and effectively improves the efficiency of making and breaking rods and pipes.

[0010] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0011] The present invention provides a rod tube buckle-breaking device, the rod tube buckle-breaking device comprises a base, wheel arms are respectively arranged on the left and right sides of the base, one end of the wheel arm is hinged to the base, the wheel arm extends to the front of the base and a first roller is pivotally connected to the other end of the wheel arm, a first motor capable of driving the first roller to rotate is arranged on the wheel arm, a second roller is pivotally connected to the front part of the base between the two wheel arms, a second motor capable of driving the second roller to rotate is arranged on the base, and the base and the two wheel arms are surrounded to form an embracing space; a retractable clamping arm and a retractable clamping assembly are respectively arranged on the top and bottom of the base, and a clamping cylinder is rotatably arranged on the clamping arm;

[0012] When the oil pipe is being buckled up and down, the clamping arm and the clamping assembly are in a retracted state, the oil pipe is arranged in the surrounding space, and the outer wall of the first roller and the outer wall of the second roller are respectively in contact with the outer wall of the oil pipe, and the first motor and the second motor respectively drive the corresponding first roller and the second roller to rotate, so as to drive the oil pipe to rotate;

[0013] When the sucker rod is being made or removed, the clamping arm and the clamping assembly are both in an extended state, so that the clamping cylinder and the clamping assembly are located in the embracing space, the outer wall of the clamping cylinder abuts against the outer wall of the second roller, the sucker rod is arranged in the clamping cylinder and the clamping assembly, and the inner wall of the clamping cylinder clamps the upper clamping square of the sucker rod joint, and the clamping assembly clamps the lower clamping square of the sucker rod joint, the second motor drives the second roller to rotate, and the second roller drives the clamping cylinder to rotate, thereby driving the sucker rod to rotate.

[0014] In a preferred embodiment of the present invention, the base includes a base body and a base plate, the base plate is arranged on the top of the base body in the horizontal direction, and the left and right sides of the base body are respectively provided with sixth linear drive devices, the cylinder bodies of the two sixth linear drive devices are respectively connected to the top of the base body, and the piston rods of the two sixth linear drive devices extend to the left and right sides of the base body respectively and are respectively hinged to one end of the corresponding wheel arm;

[0015] The left and right sides of the base plate are respectively provided with extension parts extending in a direction away from the base plate, and the two extension parts are respectively hinged to the middle parts of the corresponding wheel arms.

[0016] In a preferred embodiment of the present invention, the central axis of the second roller is arranged vertically, the second motor is arranged on the top of the base plate, and the output shaft of the second motor is connected to the central axis of the second roller.

[0017] In a preferred embodiment of the present invention, the central axis of the first roller is arranged vertically, the first motor is arranged on the top of the wheel arm, and the output shaft of the first motor is connected to the central axis of the first roller.

[0018] In a preferred embodiment of the present invention, the clamping arm comprises a first telescopic rod, a second telescopic rod, a first linear drive device and a second linear drive device, the fixed section of the first telescopic rod and the fixed section of the second telescopic rod are respectively hinged to the top of the base plate, the telescopic section of the first telescopic rod and the telescopic section of the second telescopic rod extend forward, the cylinder body of the first linear drive device is connected to the fixed section of the first telescopic rod, the piston rod of the first linear drive device is connected to the telescopic section of the first telescopic rod, the cylinder body of the second linear drive device is connected to the fixed section of the second telescopic rod, and the piston rod of the second linear drive device is connected to the telescopic section of the second telescopic rod;

[0019] The ends of the telescopic section of the first telescopic rod and the ends of the telescopic section of the second telescopic rod are respectively provided with a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion can be combined to form a circular clamping ring, and a clamping groove is opened on the outer wall of the clamping cylinder along the circumference of the clamping cylinder, and the clamping cylinder is clamped with the clamping ring through the clamping groove, so that the clamping cylinder can be rotatably embedded in the clamping ring.

[0020] In a preferred embodiment of the present invention, the clamping cylinder is composed of two cylinder parts with semicircular arc cross sections, and a positioning boss that matches the clamping square on the sucker rod joint is provided on the inner wall of the clamping cylinder.

[0021] In a preferred embodiment of the present invention, the clamping arm also includes a third linear drive device, the cylinder body of the third linear drive device is fixed to the top of the base plate, and the third linear drive device is located between the first telescopic rod and the second telescopic rod, the piston rod of the third linear drive device extends forward and is connected to the middle of the connecting block, and connecting rods are respectively provided on the left and right sides of the connecting block, one end of the two connecting rods is respectively hinged to the connecting blocks, the other end of one connecting rod is hinged to one end of the fixed section of the first telescopic rod close to its telescopic section, and the other end of the other connecting rod is hinged to one end of the fixed section of the second telescopic rod close to its telescopic section.

[0022] In a preferred embodiment of the present invention, the fixing assembly includes a fourth linear drive device, a sliding rod, a fifth linear drive device and two calipers, the cylinder body of the fourth linear drive device is connected to the base body, the piston rod of the fourth linear drive device extends forward and is slidably connected to the sliding rod, one of the calipers is arranged on the sliding rod, the other caliper is connected to the piston rod of the fourth linear drive device, and the notches on the two calipers are arranged opposite to each other; the cylinder body of the fifth linear drive device is connected to the piston rod of the fourth linear drive device, and the piston rod of the fifth linear drive device is connected to the sliding rod.

[0023] In a preferred embodiment of the present invention, the fixing assembly further includes a return spring, one end of the return spring is connected to one end of the sliding rod, and the other end of the return spring is connected to the piston rod of the fourth linear drive device.

[0024] In a preferred embodiment of the present invention, anti-slip patterns are respectively arranged on the outer wall of the first roller and the outer wall of the second roller.

[0025] As described above, the characteristics and advantages of the rod tube buckling device of the present invention are as follows: wheel arms are respectively arranged on the left and right sides of the base, the ends of the wheel arms are pivotally connected to the first rollers, and the front part of the base is pivotally connected to the second rollers between the two wheel arms, and the base and the two wheel arms are surrounded by an embracing space; a retractable clamping arm and a retractable clamping assembly are arranged on the base, and a clamping cylinder is rotatably arranged on the clamping arm; when the oil pipe is buckled, the clamping arm and the clamping assembly are in a retracted state, the oil pipe is arranged in the embracing space, and is moved by the two first rollers and the second rollers The wheel holds the oil pipe tightly, and then the oil pipe is driven to rotate by the rotation of the first roller and the second roller, so that the buckle-up and buckle-down operation of the oil pipe can be completed; when the sucker rod is buckled up and buckled, the clamping arm and the clamping assembly are both extended into the surrounding space, until the outer wall of the clamping cylinder abuts against the outer wall of the second roller, and the upper clamping square of the sucker rod joint and the lower clamping square of the sucker rod joint are clamped by the clamping cylinder and the clamping assembly respectively, and the clamping cylinder is driven to rotate by the second roller, and then the sucker rod is driven to rotate, so that the sucker rod is separated from the lower clamping square of the sucker rod joint, that is, the buckle-up and buckle-down operation of the sucker rod is completed. The present invention can meet the buckle-up and buckle-down requirements of rod pipes of different specifications by adjusting the opening and closing degree between the two wheel arms, the size of the clamping cylinder and the opening and closing degree of the clamping assembly, and has high integration, strong adaptability, safety and stability, and no staff is required to manually screw the rod pipe during the buckle-up and buckle-down process, and the degree of automation is greatly improved, which can reduce the labor intensity of the staff and effectively improve the efficiency of the buckle-up and buckle-down of the rod pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0027] in:

[0028] Figure 1 : is a stereoscopic view of the rod tube upper buckle device of the present invention.

[0029] Figure 2 : It is a top view of the shackle device on the rod tube of the present invention.

[0030] Figure 3 : It is a front view of the rod tube upper buckle device of the present invention.

[0031] Figure 4 : It is a structural schematic diagram of the clamping arm in the rod tube upper buckle device of the present invention.

[0032] Figure 5 : It is a schematic diagram of the connection structure of the third linear drive device, the connecting block and the connecting rod in the rod tube upper buckle device of the present invention.

[0033] Figure 6 : It is a three-dimensional view of the clamping cylinder in the rod tube buckle device of the present invention.

[0034] Figure 7 : It is a top view of the clamping cylinder in the rod tube buckle device of the present invention.

[0035] Figure 8 : It is a structural schematic diagram of the clamping assembly in the rod tube buckle device of the present invention.

[0036] The accompanying drawings in the present invention are:

[0037] 1. Base; 101. Base body;

[0038] 102. substrate; 1021. extension portion;

[0039] 2. Surrounding space; 3. Wheel arm;

[0040] 4. First roller; 5. First motor;

[0041] 6. The second roller; 7. The second motor;

[0042] 8. Clamping arm; 801. First telescopic rod;

[0043] 8011, first clamping portion; 802, second telescopic rod;

[0044] 8021, second clamping portion; 803, first linear drive device;

[0045] 804, a second linear drive device; 805, a third linear drive device;

[0046] 806, connecting block; 807, connecting rod;

[0047] 808, clamping ring; 9, clamping tube;

[0048] 901, card slot; 902, cylinder;

[0049] 903, positioning boss; 10, clamping assembly;

[0050] 1001. A fourth linear drive device; 1002. A sliding rod;

[0051] 1003. A fifth linear drive device; 1004. A caliper;

[0052] 1005, return spring; 1006, notch;

[0053] 11. Sixth linear drive device. DETAILED DESCRIPTION

[0054] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0055] Unless otherwise specified, the directions of front, back, left, and right referred to in this document are all directions indicated in the present invention. Figure 3 The front, back, left and right directions in the figure shall prevail and are explained here.

[0056] like Figures 1 to 8As shown, the present invention provides a rod tube shackle device, which includes a base 1, wheel arms 3 are respectively arranged on the left and right sides of the base 1, one end of the wheel arm 3 is hinged to the base 1, the wheel arm 3 extends in the horizontal direction to the front of the base 1 and a first roller 4 is pivotally connected to the other end of the wheel arm 3, a first motor 5 capable of driving the first roller 4 to rotate is arranged on the wheel arm 3, a second roller 6 is pivotally connected to the front of the base 1 between the two wheel arms 3, and a second motor 5 capable of driving the second roller 6 to rotate is arranged on the base 1 Two motors 7, two first rollers 4 and second rollers 6 are respectively located at the three vertices of the triangle, and the base 1 and the two wheel arms 3 enclose a ring-shaped surrounding space 2; a retractable clamping arm 8 is provided on the top of the base 1, and a retractable clamping assembly 10 is provided on the bottom of the base 1, and a clamping cylinder 9 is rotatably provided at the end of the clamping arm 8; when the oil pipe is put on and unfastened, the clamping arm 8 and the clamping assembly 10 are both in a retracted state (that is, the clamping arm 8 and the clamping assembly 10 are not located in the surrounding space 2) , the oil pipe is arranged in the surrounding space 2 along the vertical direction, and the outer walls of the two first rollers 4 and the outer walls of the second roller 6 are respectively in contact with the outer walls of the oil pipe, the two first motors 5 respectively drive the corresponding first rollers 4 to rotate, and the second motor 7 drives the second roller 6 to rotate, and then the oil pipe is driven to rotate in the surrounding space 2 through the two first rollers 4 and the second rollers 6; when the sucker rod is put on and unbuckled, the clamping arm 8 and the clamping assembly 10 are both in the forward extension state, so that the clamping cylinder 9 and the clamping assembly 10 are located in the surrounding space 2 The outer wall of the clamping cylinder 9 abuts against the outer wall of the second roller 6, the sucker rod is arranged in the clamping cylinder 9 and the clamping assembly 10 along the vertical direction, and the inner wall of the clamping cylinder 9 clamps the upper clamping square of the sucker rod joint located at the upper part of the sucker rod, and the clamping assembly 10 clamps the lower clamping square of the sucker rod joint located at the lower part of the sucker rod, and the second motor 7 drives the second roller 6 to rotate, so that the second roller 6 drives the clamping cylinder 9 to rotate, and then drives the sucker rod to rotate through the clamping cylinder 9 (that is, the sucker rod and the lower clamping square of the sucker rod joint rotate relative to each other).

[0057] The present invention is provided with wheel arms 3 on the left and right sides of the base 1, respectively, and the ends of the wheel arms 3 are pivotally connected to the first rollers 4, and the second rollers 6 are pivotally connected between the two wheel arms 3 at the front of the base 1, and the base 1 and the two wheel arms 3 are surrounded by an embracing space 2; a retractable clamping arm 8 and a retractable clamping assembly 10 are provided on the base 1, and a clamping cylinder 9 is rotatably provided on the clamping arm 8; when the oil pipe is put on and unbuckled, the clamping arm 8 and the clamping assembly 10 are both in a retracted state, the oil pipe is set in the embracing space 2, and the oil pipe is clamped by the two first rollers 4 and the second roller 6, and then the first roller 4 and the second roller 6 are used to clamp the oil pipe. The rotation of the second roller 6 drives the oil pipe to rotate, and the oil pipe buckling and breaking operation can be completed; when the sucker rod is buckled, the clamping arm 8 and the clamping assembly 10 are extended into the surrounding space 2 until the outer wall of the clamping cylinder 9 abuts against the outer wall of the second roller 6, and the clamping cylinder 9 and the clamping assembly 10 are respectively clamped to the upper clamping square of the sucker rod joint and the lower clamping square of the sucker rod joint (the lower clamping square of the sucker rod joint is used to connect the next section of the sucker rod), and the clamping cylinder 9 is driven to rotate by the second roller 6, and then the sucker rod is driven to rotate, so that the sucker rod is separated from the lower clamping square of the sucker rod joint, and the sucker rod buckling and breaking operation is completed. The present invention can meet the requirements for making and breaking out rods and pipes (i.e., oil pipes and sucker rods) of different specifications by adjusting the opening and closing degree between the two wheel arms 3, the size of the clamping tube 9, and the opening and closing degree of the clamping assembly 10. It has high integration, strong adaptability, safety and stability. In addition, during the making and breaking out process, there is no need for workers to manually screw the rods and pipes, and the degree of automation is greatly improved, which can reduce the labor intensity of workers, effectively improve the making and breaking out efficiency of rods and pipes, and is conducive to the development of automation, intelligence and integration of well repair operations.

[0058] Furthermore, the first motor 5 and the second motor 7 may be, but are not limited to, electric motors or hydraulic motors.

[0059] Furthermore, anti-slip grooves are respectively provided on the outer wall of the first roller 4 and the outer wall of the second roller 6, so as to increase the friction between the first roller 4 and the second roller 6 and the oil pipe and between the second roller 6 and the clamping cylinder 9, thereby ensuring that the first roller 4 and the second roller 6 can drive the oil pipe to rotate and the second roller 6 can drive the clamping cylinder 9 to rotate, thereby ensuring that the making and breaking operations of the oil pipe and the sucker rod are completed smoothly.

[0060] In an optional embodiment of the present invention, Figures 1 to 3As shown, the base 1 includes a base body 101 and a substrate 102. The base 1 is a rectangular block structure, and the substrate 102 is a flat plate structure. The substrate 102 is fixedly arranged on the top of the base body 101 along the horizontal direction. The left and right sides of the base body 101 are respectively provided with sixth linear drive devices 11. The cylinder bodies of the two sixth linear drive devices 11 are respectively connected to the top of the base body 101. The piston rods of the two sixth linear drive devices 11 extend to the left and right sides of the base body 101 along the horizontal direction, and the piston rods of the two sixth linear drive devices 11 are respectively hinged to one end of the corresponding wheel arm 3; the left and right sides of the substrate 102 respectively extend with extension parts 1021 in the direction away from the substrate 102, and the two extension parts 1021 are respectively hinged to the middle part of the corresponding wheel arm 3. By controlling the outwardly extending length of the piston rod of the sixth linear drive device 11, the wheel arm 3 can be controlled to rotate around the position hinged to the extension portion 1021, so as to drive the two wheel arms 3 to swing along a fixed trajectory in the horizontal plane, thereby adjusting the distance between the two first rollers 4 (i.e., adjusting the size of the surrounding space 2), so that the two first rollers 4 can cooperate with the second roller 6 to hold the oil pipe tightly.

[0061] Further, such as Figures 1 to 3 As shown, the central axis of the second roller 6 is arranged vertically, the second motor 7 is arranged on the top of the substrate 102, and the output shaft of the second motor 7 is connected to the central axis of the second roller 6, and the second motor 7 drives the second roller 6 to rotate.

[0062] Further, such as Figures 1 to 3 As shown, the central axis of the first roller 4 is arranged vertically, the first motor 5 is arranged on the top of the wheel arm 3, and the output shaft of the first motor 5 is connected to the central axis of the first roller 4, and the first roller 4 is driven to rotate by the first motor 5.

[0063] In an optional embodiment of the present invention, Figures 1 to 4 , Figure 6As shown, the clamping arm 8 includes a first telescopic rod 801, a second telescopic rod 802, a first linear drive device 803 and a second linear drive device 804. The fixed section of the first telescopic rod 801 and the fixed section of the second telescopic rod 802 are respectively hinged to the top of the base plate 102. The telescopic section of the first telescopic rod 801 and the telescopic section of the second telescopic rod 802 extend forward in the horizontal direction. The cylinder body of the first linear drive device 803 is connected to the fixed section of the first telescopic rod 801, the piston rod of the first linear drive device 803 is connected to the telescopic section of the first telescopic rod 801, the cylinder body of the second linear drive device 804 is connected to the fixed section of the second telescopic rod 802, and the second linear drive device 804 is connected to the fixed section of the second telescopic rod 802. The piston rod of the device 804 is connected to the telescopic section of the second telescopic rod 802; a semicircular first clamping portion 8011 is provided at the end of the telescopic section of the first telescopic rod 801, and a semicircular second clamping portion 8021 is provided at the end of the telescopic section of the second telescopic rod 802. The first clamping portion 8011 and the second clamping portion 8021 are arranged opposite to each other so that the first clamping portion 8011 and the second clamping portion 8021 can be combined to form a circular clamping ring 808. A circular clamping groove 901 is provided on the outer wall of the upper part of the clamping cylinder 9 along the circumference of the clamping cylinder 9. The clamping cylinder 9 is clamped with the clamping ring 808 through the clamping groove 901, so that the clamping cylinder 9 can be rotatably embedded in the clamping ring 808.

[0064] Further, such as Figure 6 , Figure 7 As shown, the clamping cylinder 9 is composed of two cylinder bodies 902 with semicircular cross-sections, and a positioning boss 903 is provided on the inner wall of the clamping cylinder 9 to cooperate with the clamping square on the sucker rod joint, so as to set the sucker rod in the clamping cylinder 9 and ensure that the clamping cylinder 9 can cooperate and clamp with the clamping square on the sucker rod joint.

[0065] Further, such as Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, the clamping arm 8 also includes a third linear drive device 805, a cylinder body of the third linear drive device 805 is fixed to the top of the base plate 102, and the third linear drive device 805 is located between the first telescopic rod 801 and the second telescopic rod 802, and a piston rod of the third linear drive device 805 extends forward in the horizontal direction and is connected to the middle of a connecting block 806, the connecting block 806 is a long strip block structure, and connecting rods 807 are respectively arranged on the left and right sides of the connecting block 806, one end of the two connecting rods 807 is respectively hinged to the connecting block 806, the other end of one connecting rod 807 is hinged to one end of the fixed section of the first telescopic rod 801 close to its telescopic section, and the other end of the other connecting rod 807 is hinged to one end of the fixed section of the second telescopic rod 802 close to its telescopic section. The third linear drive device 805 is extended and retracted synchronously with the first telescopic rod 801 and the second telescopic rod 802, and then the first telescopic rod 801 and the second telescopic rod 802 are limited by the cooperation of the third linear drive device 805, the connecting block 806 and the two connecting rods 807, ensuring that the clamping cylinder 9 can be firmly clamped with the clamping square on the sucker rod joint.

[0066] In an optional embodiment of the present invention, Figures 1 to 3 , Figure 8 As shown, the clamping assembly 10 includes a fourth linear drive device 1001, a sliding rod 1002, a fifth linear drive device 1003 and two calipers 1004. The cylinder of the fourth linear drive device 1001 is connected to the base body 101. The piston rod of the fourth linear drive device 1001 extends forward in the horizontal direction and is slidably connected to the sliding rod 1002. The sliding rod 1002 is arranged in the horizontal direction and is perpendicular to the piston rod of the fourth linear drive device 1001. One caliper 1004 is fixedly arranged at one end of the sliding rod 1002, and the other caliper 1004 is connected to the piston rod of the fourth linear drive device 1001. Notches 1006 are provided on both calipers 1004, and the notches 1006 on the two calipers 1004 are arranged oppositely. The cylinder of the fifth linear drive device 1003 is connected to the piston rod of the fourth linear drive device 1001, and the piston rod of the fifth linear drive device 1003 is connected to the sliding rod 1002. By controlling the extended length of the piston rod of the fourth linear drive device 1001, the two calipers 1004 can be controlled to extend to the position within the surrounding space 2, and then by controlling the extended length of the piston rod of the fifth linear drive device 1003, the distance between the two calipers 1004 can be controlled, and then the two calipers 1004 can cooperate to firmly clamp the lower clamping square of the sucker rod joint between the slots 1006 of the two calipers 1004.

[0067] Further, such as Figure 8As shown, the clamping assembly 10 also includes a return spring 1005, one end of the return spring 1005 is connected to one end of the sliding rod 1002, and the other end of the return spring 1005 is connected to the piston rod of the fourth linear drive device 1001. The elastic force of the return spring 1005 helps the two calipers 1004 to return to their original positions.

[0068] Furthermore, each linear drive device (ie, the first linear drive device 803, the second linear drive device, the third linear drive device 805, the fourth linear drive device 1001, the fifth linear drive device 1003 and the sixth linear drive device 11) may adopt, but is not limited to, a hydraulic cylinder or a linear motor.

[0069] The use process of the rod tube buckle device of the present invention is as follows:

[0070] The process of putting on and breaking off the oil pipe requires the cooperation of the base 1, the wheel arm 3, the first roller 4 and the second roller 6. During the process of putting on and breaking off the oil pipe, the clamping arm 8 and the clamping assembly 10 are both in a retracted state (i.e., the clamping arm 8 and the clamping assembly 10 are not located in the surrounding space 2). When the oil pipe reaches the specified position (i.e., the oil pipe is located in the surrounding space 2), the sixth linear drive device 11 drives the wheel arm 3 to swing, so that the two first rollers 4 and the second rollers 6 hold the upper part of the oil pipe joint tightly, and the first motor 5 and the second motor 7 drive the first roller 4 and the second roller 6 to rotate respectively, and then the oil pipe is driven to rotate by the rotation of the first roller 4 and the second roller 6, so as to complete the putting on and breaking off of the oil pipe.

[0071] The process of making and breaking out the sucker rod requires the cooperation of the base 1, the clamping arm 8, the clamping cylinder 9, the clamping assembly 10 and the second roller 6. During the buckling and unbuckling process, the clamping arm 8 and the clamping assembly 10 are both in an extended state (that is, the clamping cylinder 9 and the clamping assembly 10 are both located in the surrounding space 2), the outer wall of the clamping cylinder 9 abuts against the outer wall of the second roller 6, the clamping cylinder 9 embraces the upper clamping square of the sucker rod joint, and ensures that the center of the clamping cylinder 9 is located at the center of the wellhead, and the clamping assembly 10 clamps the lower clamping square of the sucker rod joint, which serves to fix the lower part of the sucker rod joint, and then drives the second roller 6 to rotate through the second motor 7, so that the second roller 6 drives the clamping cylinder 9 to rotate, and then drives the sucker rod to rotate through the clamping cylinder 9 to perform the buckling and unbuckling operation; after the buckling and unbuckling operation is completed, the clamping assembly 10 is released, and the first clamping portion 8011 and the second clamping portion 8021 are controlled to open by the first linear drive device 803, the second linear drive device 804 and the third linear drive device 805, and the clamping cylinder 9 is removed to release the sucker rod joint.

[0072] The characteristics and advantages of the rod tube breaker device of the present invention are:

[0073] 1. The rod tube buckling device has a compact structure and a small size, which effectively improves the efficiency of the rod tube buckling.

[0074] 2. The rod tube shackle device can meet the requirements of rod tube shackles of different specifications, has high integration and strong adaptability, and is suitable for popularization and use.

[0075] 3. During use, the rod-to-pipe make-up and make-out device automatically completes the make-up and make-out operations on the rod-to-pipe, without the need for workers to manually screw the rod-to-pipe. The degree of automation is greatly improved, which can effectively reduce the labor intensity of workers and is conducive to the development of automation, intelligence and integration of well repair operations.

[0076] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A rod tube shackle device, characterized in that: The rod tube upper buckle device comprises a base, wheel arms are respectively arranged on the left and right sides of the base, one end of the wheel arm is hinged to the base, the wheel arm extends to the front of the base and a first roller is pivoted to the other end of the wheel arm, a first motor capable of driving the first roller to rotate is arranged on the wheel arm, a second roller is pivoted to the front part of the base located between the two wheel arms, a second motor capable of driving the second roller to rotate is arranged on the base, and the base and the two wheel arms together form an embracing space; a retractable clamping arm and a retractable clamping assembly are respectively arranged on the top and bottom of the base, and a clamping cylinder is rotatably arranged on the clamping arm; When the oil pipe is being buckled up and down, the clamping arm and the clamping assembly are in a retracted state, the oil pipe is arranged in the surrounding space, and the outer wall of the first roller and the outer wall of the second roller are respectively in contact with the outer wall of the oil pipe, and the first motor and the second motor respectively drive the corresponding first roller and the second roller to rotate, so as to drive the oil pipe to rotate; When the sucker rod is being made or removed, the clamping arm and the clamping assembly are both in an extended state, so that the clamping cylinder and the clamping assembly are located in the embracing space, the outer wall of the clamping cylinder abuts against the outer wall of the second roller, the sucker rod is arranged in the clamping cylinder and the clamping assembly, and the inner wall of the clamping cylinder clamps the upper clamping square of the sucker rod joint, and the clamping assembly clamps the lower clamping square of the sucker rod joint, the second motor drives the second roller to rotate, and the second roller drives the clamping cylinder to rotate, thereby driving the sucker rod to rotate.

2. The rod tube breaker device according to claim 1, characterized in that: The base comprises a base body and a base plate, the base plate is arranged on the top of the base body in the horizontal direction, and the left and right sides of the base body are respectively provided with sixth linear drive devices, the cylinder bodies of the two sixth linear drive devices are respectively connected to the top of the base body, and the piston rods of the two sixth linear drive devices extend to the left and right sides of the base body respectively and are respectively hinged to one end of the corresponding wheel arm; The left and right sides of the base plate are respectively provided with extension parts extending in a direction away from the base plate, and the two extension parts are respectively hinged to the middle parts of the corresponding wheel arms.

3. The rod tube breaker device according to claim 2, characterized in that: The central axis of the second roller is arranged vertically, the second motor is arranged on the top of the base plate, and the output shaft of the second motor is connected to the central axis of the second roller.

4. The rod tube breaker device according to claim 1, 2 or 3, characterized in that: The central axis of the first roller is arranged vertically, the first motor is arranged on the top of the wheel arm, and the output shaft of the first motor is connected to the central axis of the first roller.

5. The rod tube breaker device according to claim 2, characterized in that: The clamping arm comprises a first telescopic rod, a second telescopic rod, a first linear drive device and a second linear drive device, the fixed section of the first telescopic rod and the fixed section of the second telescopic rod are respectively hinged to the top of the base plate, the telescopic section of the first telescopic rod and the telescopic section of the second telescopic rod extend forward, the cylinder body of the first linear drive device is connected to the fixed section of the first telescopic rod, the piston rod of the first linear drive device is connected to the telescopic section of the first telescopic rod, the cylinder body of the second linear drive device is connected to the fixed section of the second telescopic rod, and the piston rod of the second linear drive device is connected to the telescopic section of the second telescopic rod; The ends of the telescopic section of the first telescopic rod and the ends of the telescopic section of the second telescopic rod are respectively provided with a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion can be combined to form a circular clamping ring, and a clamping groove is opened on the outer wall of the clamping cylinder along the circumference of the clamping cylinder, and the clamping cylinder is clamped with the clamping ring through the clamping groove, so that the clamping cylinder can be rotatably embedded in the clamping ring.

6. The rod tube breaker device according to claim 5, characterized in that: The clamping cylinder is composed of two cylinder bodies with semicircular arc cross sections, and a positioning boss matched with the clamping square on the sucker rod joint is arranged on the inner wall of the clamping cylinder.

7. The rod tube breaker device according to claim 5, characterized in that: The clamping arm also includes a third linear drive device, a cylinder body of the third linear drive device is fixed to the top of the base plate, and the third linear drive device is located between the first telescopic rod and the second telescopic rod, a piston rod of the third linear drive device extends forward and is connected to the middle of the connecting block, and connecting rods are respectively provided on the left and right sides of the connecting block, one end of the two connecting rods is respectively hinged to the connecting blocks, the other end of one connecting rod is hinged to one end of the fixed section of the first telescopic rod close to its telescopic section, and the other end of the other connecting rod is hinged to one end of the fixed section of the second telescopic rod close to its telescopic section.

8. The rod tube breaker device according to claim 2, characterized in that: The clamping assembly includes a fourth linear drive device, a sliding rod, a fifth linear drive device and two calipers, the cylinder body of the fourth linear drive device is connected to the base body, the piston rod of the fourth linear drive device extends forward and is slidably connected to the sliding rod, one caliper is arranged on the sliding rod, the other caliper is connected to the piston rod of the fourth linear drive device, and the notches on the two calipers are arranged opposite to each other; the cylinder body of the fifth linear drive device is connected to the piston rod of the fourth linear drive device, and the piston rod of the fifth linear drive device is connected to the sliding rod.

9. The rod tube breaker device according to claim 8, characterized in that: The clamping assembly further includes a return spring, one end of which is connected to one end of the sliding rod, and the other end of which is connected to the piston rod of the fourth linear drive device.

10. The rod tube breaker device according to claim 1, characterized in that: Anti-slip patterns are respectively arranged on the outer wall of the first roller and the outer wall of the second roller.

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