Two-layer platform drill pipe finger beam capable of automatically adjusting pipe spacing

Abstract

The application discloses a two-layer platform drill rod finger beam capable of automatically adjusting the distance between pipes, comprising finger beam guide rods symmetrically installed on opposite sides of a platform body in the vertical direction, a plurality of finger beams are sequentially and parallelly arranged on the inner side of each finger beam guide rod from top to bottom, and a sliding assembly is arranged between each finger beam and the finger beam guide rod; and a finger beam driving assembly is connected to the outer side of each finger beam guide rod. The application realizes the automatic adjustment of the drill rig derrick two-layer platform drill rod finger beam and the determination of the moving distance, and reduces the work difficulty and risk of replacing the finger beam or adjusting the distance between the pipes in the high altitude.

Description

Technical Field

[0001] This invention belongs to the field of petroleum machinery and equipment manufacturing technology, and relates to a two-layer bench drill pipe finger beam that can automatically adjust the spacing of the pipe rows. Background Technology

[0002] During oil drilling operations, various diameter drill pipes are often combined to accommodate different drilling depths and formation structures. Therefore, the second-level platform of the drilling rig needs to support the placement of drill pipe columns of various diameters, and the spacing of the drill pipe placement finger beams needs to be quick, convenient, and adjustable. However, most current drilling rig second-level platforms use a fixed-spacing finger beam structure. Typically, the finger beam spacing is designed for large-diameter drill pipes, while also being compatible with smaller-diameter drill pipes. Alternatively, the drilling rig is equipped with multiple spacing drill pipe placement finger beams for easy assembly and replacement to accommodate different drill pipe specifications. The design of the finger beam spacing for the two-layer drilling rig based on the large diameter drill pipe has the following problems: (1) When the small diameter drill pipe is discharged, the gap between the finger beam and the discharged drill pipe is large, the finger beam has poor lateral constraint on the drill pipe, the drill pipe is prone to vibration, and there is a safety hazard; (2) The small diameter drill pipe is prone to misalignment and uneven discharge within the finger beam, which is not conducive to the positioning of the center of the discharged drill pipe by the gripper head of the two-layer drilling rig, and is prone to drill pipe clamping and lifting failures; (3) The small diameter drill pipe is tilted and the force is borne by the finger beam, which is prone to deformation of the finger beam; In order to equip the drilling rig with multiple sets of finger beams with various spacings for disassembly and replacement to meet the discharge of different specifications of drill pipe, there is also the problem of frequent high-altitude disassembly and assembly of finger beams, which is difficult, risky, and inefficient, seriously affecting the drilling operation progress. The design and development of a drill pipe finger beam that uses power to adjust the spacing has good practical value and application prospects. Summary of the Invention

[0003] The purpose of this invention is to provide a two-layer drill rod finger beam that can automatically adjust the spacing of the pipe rows. This structure realizes the automatic adjustment and movement distance measurement of the two-layer drill rod finger beam of the drilling rig derrick, reducing the difficulty and risk of replacing old finger beams or adjusting the spacing at high altitudes.

[0004] The technical solution adopted in this invention is a two-layer bench drill rod finger beam that can automatically adjust the spacing of the pipe rows, including finger beam guide rods symmetrically installed on opposite sides of the bench body in the vertical direction. Several finger beams are arranged parallel to each other from top to bottom on the inner side of each finger beam guide rod. A sliding component is installed between each finger beam and the finger beam guide rod. A finger beam drive component is connected to the outer side of each finger beam guide rod.

[0005] The invention is further characterized by:

[0006] The sliding assembly includes a finger beam sleeve, which is located at one end of the finger beam near the platform, and a roller is provided between the finger beam sleeve and the finger beam; each finger beam sleeve has a U-shaped groove on the side away from the finger beam, and the through direction of the U-shaped groove is consistent with the length direction of the finger beam.

[0007] The finger beam drive assembly includes a cylinder guide rod and an adjusting screw arranged parallel to the finger beam guide rod. A screw guide sleeve is coaxially sleeved on the outside of the adjusting screw. Both ends of the screw guide sleeve are provided with pull-in flip rings. A fork is provided on the outer wall of the fork flip ring. When the fork is in the horizontal position, it can be locked into the opening of the U-shaped stop groove. The screw guide sleeve is connected to the cylinder guide sleeve through a transition plate. The cylinder guide sleeve is coaxially sleeved on the outer wall of the cylinder guide rod. The cylinder guide sleeve is provided with a lug A, and the fork is provided with a lug B. One end of the flip cylinder is connected to lug A as a whole through pin A, and the other end of the cylinder is connected to lug B as a whole through pin B. A servo motor is connected to one end of the adjusting screw.

[0008] A bevel gear B is coaxially mounted on the spindle of the servo motor, and a bevel gear A is mounted on one end of the adjusting screw. The bevel gear A meshes with the bevel gear B.

[0009] A laser rangefinder is installed on one side of the finger beam guide rod, and the laser rangefinder's illumination direction is consistent with the direction of the finger beam guide rod's axis.

[0010] The laser beam emitted by the laser rangefinder shines on the horizontally positioned shift fork, and the reflection on the shift fork is used to measure the moving distance. The moving distance of the shift fork is the same as the moving distance of the finger beam.

[0011] The finger beam sleeve is provided with threaded holes, and a clamping bolt is installed in the threaded holes.

[0012] The beneficial effects of this invention are that it utilizes the power of a servo motor, along with auxiliary equipment and structures such as adjusting screws, shift forks, U-shaped grooves, cylinders, and laser rangefinders, to achieve automated adjustment and distance measurement of the drill rod finger beams on the second-level drilling rig platform. This enhances the matching capability of the adjustable spacing drill rod finger beams on the second-level platform with multi-specification drill rods, significantly improving the drilling rig's ability to reliably and safely discharge and apply multi-specification drill rods. It avoids the difficulty and risks of replacing or adjusting the spacing of old finger beams at high altitudes, and has strong substitutability for old-structured second-level drilling rod finger beams, possessing good practical value and application prospects. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the two-layer bench drill rod finger beam that can automatically adjust the spacing of the pipe rows according to the present invention;

[0014] Figure 2 This is the present invention. Figure 1 AA section view in the middle;

[0015] Figure 3 This is the present invention. Figure 1 BB section view in the middle;

[0016] Figure 4 This is a schematic diagram of the shift fork in the finger beam of the two-layer bench drill rod of the present invention, which can automatically adjust the spacing of the pipe rows, flipping up from the U-shaped retaining groove;

[0017] Figure 5 This is the present invention. Figure 1 CC section view in the image.

[0018] Figure 6 This is the present invention. Figure 1 DD section view in the image.

[0019] In the diagram, 1. Platform, 2. Finger beam, 3. Finger beam sliding sleeve, 4. U-shaped retaining groove, 5. Finger beam guide rod, 6. Support seat, 7. Shift fork, 8. Adjusting screw, 9. Screw guide sleeve, 10. Shift fork flipping ring, 11. Cylinder, 12. Cylinder guide rod, 13. Cylinder guide sleeve, 14. Ear seat A, 15. Pin A, 16. Ear seat B, 17. Pin B, 18. Clamping bolt, 19. Laser rangefinder, 20. Servo motor, 21. Motor bracket, 22. Roller, 23. Bevel gear A, 24. Bevel gear B. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] This invention relates to a two-tiered drill pipe finger beam with automatically adjustable pipe spacing, installed on the second tier of the oil drilling rig derrick. It is symmetrically arranged on both sides of the second tier in the vertical support area, and the two-tiered drill pipe finger beams on each side can automatically adjust the pipe spacing. Figure 1 As shown, the device includes multiple finger beams 2, and an equal number of finger beam sleeves 3, U-shaped retaining grooves 4, and rollers 22. It also includes a finger beam guide rod 5, a cylinder guide rod 12, a servo motor 21, an adjusting screw 8, a screw guide sleeve 9, two support seats 6, a shift fork 7, a shift fork flipping ring 10, a cylinder 11, a cylinder guide sleeve 13, a laser rangefinder 19, bevel gears A23 and B24, ear seats A14, ear fittings B16, and connecting pins A5 and B17, among other devices and structures. Figure 2As shown, the finger beam guide rod 5 is fixed on the front and rear beams of the inner frame of the platform 1. The finger beam 2 is provided with a finger beam sleeve 3 near the end of the platform. The finger beam 2 and the finger beam sleeve 3 are connected as an integral structure and their centerlines are perpendicular to each other. The finger beam sleeve 3 is fitted on the finger beam guide rod 5 and can slide along the centerline of the finger beam guide rod 5. A roller 22 is installed at the bottom of the finger beam 2 near the end of the finger beam sleeve 3. The rim of the roller 22 abuts against the inner frame beam of the platform 1. The finger beam 2 is in a horizontal position with the support of the finger beam guide rod 5 and the roller 22, forming a cantilever structure. The roller 22 serves as a support structure for the finger beam 2 and can also greatly reduce the movement resistance when the finger beam 2 moves along the finger beam guide rod 5. Each finger beam sleeve 3 is provided with a U-shaped groove 4 at the top. The opening of the U-shaped groove 4 faces upward and the through direction of the U-shaped groove 4 is consistent with the length direction of the finger beam 2.

[0022] like Figure 3 , 4 As shown, a support seat 6 is installed on the upper surface of the platform 1 at both ends of the finger beam guide rod 5. An adjusting screw 8 and a cylinder guide rod 12 are installed between the two support seats 6. The axis of the adjusting screw 8 and the cylinder guide rod 12 is parallel to the axis of the finger beam guide rod 5. The screw guide sleeve 9 is a tubular structure with a nut in its inner hole that matches the external thread of the adjusting screw 8. The screw guide sleeve 9 is fitted onto the adjusting screw 8. The shift fork flipping ring 10 is a tubular structure fitted onto the outer wall of the screw guide sleeve 9 and can rotate around its central axis on the outer wall of the screw guide sleeve 9. Limiting rings are provided at both ends of the screw guide sleeve 9 to restrict the shift fork flipping ring 10 from sliding along its axis on the outer wall of the screw guide sleeve 9. A long strip-shaped shift fork 7 is provided on the outer wall of the shift fork flipping ring 10. The axis of the shift fork 7 in its length direction is perpendicular to the axis of the shift fork flipping ring 10. The width of the shift fork 7 is slightly smaller than the opening width of the U-shaped groove 4. When in a horizontal position, it can be fitted into the opening of the U-shaped retaining groove 4; the cylinder guide sleeve 13 is a hollow structure, fitted on the cylinder guide rod 12, and can slide along the axis of the cylinder guide rod 12. The cylinder guide sleeve 13 and the lead screw guide sleeve 9 are connected as a whole through a transition plate; the top of the cylinder guide sleeve 13 is provided with an ear seat 14, and the upper surface of the shift fork 7 is provided with an ear seat 16. One end of the flipping cylinder 11 is connected to the ear seat A14 by a pin A15, and the other end of the cylinder 11 is connected to the ear seat B16 by a pin B17; through the extension and retraction of the cylinder 11, the shift fork 7 can be flipped from a horizontal to an inclined position around the axis of the shift fork flipping ring 10; the finger beam sliding sleeve 3 is provided with a threaded hole, and a clamping bolt 18 is installed in the threaded hole. Tightening the clamping bolt 18 can clamp the finger beam sliding sleeve 3 and the finger beam guide rod 5 together, preventing the finger beam 2 from sliding unexpectedly along the axial direction of the finger beam guide rod 5.

[0023] like Figure 5As shown, each support 6 is equipped with a laser rangefinder 19. The laser rangefinder 19 is aligned with the axis of the finger beam guide rod 5. The laser beam emitted by the laser rangefinder 19 can illuminate the horizontal fork 7, and a reflection can be formed on the fork 7 to measure the moving distance. The moving distance of the fork 7 is the same as the moving distance of the finger beam 2.

[0024] like Figure 6 As shown, a servo motor 20 is installed at one end of the adjusting screw 8. The servo motor 20 is mounted upright on the motor bracket 21, which is mounted on the platform 1. The central axis of the servo motor 20 is perpendicular to the axis of the adjusting screw 8. A bevel gear A23 and a bevel gear B24 are respectively installed at the end of the central axis of the servo motor 20 and the end of the adjusting screw 8. The bevel gears A23 and B24 are in a paired meshing state. When the servo motor 20 starts to rotate, it can drive the adjusting screw 8 to rotate through the transmission of bevel gears A23 and B24, and drive the screw guide sleeve 9, the shift fork flipping ring 10, the shift fork 7 and the cylinder 11 to move as a whole along the length of the adjusting screw 8.

[0025] The working principle of the two-layer bench drill rod finger beam of this invention, which can automatically adjust the spacing of the pipe rows, is as follows:

[0026] When the specifications of the drill pipes on the second-level platform of the derrick change and the spacing of the finger beam 2 needs to be adjusted, first remove the drill pipe support in the finger beam 2 at the adjustment position, then retract the cylinder 11 and flip up the shift fork 7; loosen the clamping bolt 18 to release the clamping force between the finger beam sliding sleeve 3 and the finger beam guide rod 5.

[0027] The servo motor 20 is started, and through the transmission of bevel gears A23 and B24, it drives the adjusting screw 8 to rotate. This causes the screw guide sleeve 9, the shift fork flipping ring 10, the shift fork 7, and the cylinder 11 to move as a whole along the length of the adjusting screw 8. The direction of this movement changes with the rotation direction of the servo motor 20. When the moving shift fork 7 approaches the finger beam 2 that needs to be adjusted, the servo motor 20 is finely adjusted so that the shift fork 7 is aligned with the opening of the U-shaped stop groove 4 on the finger beam slide sleeve 3. The cylinder 11 is then extended, and the shift fork 7 is leveled and locked into the opening of the U-shaped stop groove 4. The laser rangefinder 19 is started, and the servo motor 20 is started. Driven by the adjusting screw 8, the integrated screw guide sleeve 9 and the shift fork 7 drive the finger beam slide sleeve 3 and the finger beam 2 to move synchronously to the adjustment position as a whole. When the finger beam sliding sleeve 3 and the finger beam 2 move as a whole, the laser rangefinder 19 continuously illuminates the shift fork and detects its movement distance. After the finger beam 2 reaches the movement distance, the servo motor 20 is turned off, the laser rangefinder 19 is turned off, the cylinder 11 is retracted, the shift fork 7 is flipped up, the clamping bolt 18 is tightened, and the finger beam sliding sleeve 3 and the finger beam guide rod 5 are pressed together and connected as a whole. The position adjustment of a single finger beam is completed. The adjustment of the position and spacing of the finger beams of the entire second-floor platform is completed in the same way.

[0028] The working process of the two-layer bench drill rod finger beam with automatic adjustable pipe spacing of this invention is as follows:

[0029] When placing drill pipe on the second platform of the derrick, if Figure 1 As shown, the finger beams are first placed in the spacing of the finger beams 2 closest to the front walkway. After filling the spacing, they are placed in the finger beam spacings further away from the front walkway until the entire finger beam is filled. Therefore, when the specifications of the drill pipes placed on the second-level platform change and the finger beam spacing needs to be adjusted, it is necessary to first determine whether the finger beam spacing should be reduced or increased. When the diameter of the new drill pipes becomes smaller and the finger beam spacing needs to be reduced, the position of the finger beam 2 (M) closest to the front walkway is adjusted first, and the distance between finger beam 2 (M) and the front walkway of the second-level platform body 1 is reduced until it matches the diameter of the new drill pipes. Then, the positions of adjacent finger beams are adjusted in this manner until the adjustment of the entire finger beam spacing of the second-level platform is completed. When reducing the finger beam spacing, the specific workflow of the drill pipe finger beam that automatically adjusts the pipe spacing is as follows: First, retract the cylinder 11 and flip the shift fork 7; loosen the clamping bolt 18 to release the clamping force between the finger beam sliding sleeve 3 and the finger beam guide rod 5; start the servo motor 20, and through the rotation of the bevel gear 23 mounted on the central shaft of the servo motor 20, drive the bevel gear 24 mounted on the adjusting screw 8 to rotate as a whole with the adjusting screw 8, and drive the screw guide sleeve 9, the shift fork flipping ring 10, the shift fork 7 and the cylinder 11 to move as a whole along the axis of the adjusting screw 8; when the moving shift fork 7 approaches the finger beam 2 (M) (M refers to the nearest drill pipe finger beam 2 that moves forward), fine-tune the servo motor 20. Servo motor 20 aligns the shift fork 7 with the opening of the U-shaped groove 4 on the finger beam sleeve 3; cylinder 11 extends and flattens the shift fork 7 so that it is locked in the opening of the U-shaped groove 4; laser rangefinder 19 is activated and servo motor 20 drives adjusting screw 8 to rotate, causing shift fork 7 to move the finger beam sleeve 3 and finger beam 2 (M) synchronously forward in the direction of the walkway; as the finger beam sleeve 3 and finger beam 2 (M) move as a whole, laser rangefinder 19 continuously illuminates shift fork 7 and detects its movement distance. After finger beam 2 (M) reaches the movement distance, servo motor 20 is paused, clamping bolt 18 on finger beam 2 (M) is tightened, cylinder 11 is retracted, shift fork 7 is flipped up, and the position adjustment of finger beam 2 (M) is completed. Restart the servo motor 20 to drive the adjusting screw 8, align the shift fork 7 with the opening of the U-shaped groove 4 on the adjacent finger beam slide sleeve 3, extend the cylinder 11, and flatten the shift fork 7 so that it is locked in the opening of the U-shaped groove 4. Driven by the servo motor 20 and measured by the laser rangefinder 19, adjust the position of the adjacent finger beam to the correct position. Repeat this process to complete the adjustment of the spacing between the finger beams of the entire second-layer bench drill rod.

[0030] When the diameter of the new drill pipe increases and the finger beam spacing needs to be increased, first adjust the position of the finger beam 2(N) furthest from the front walkway of the second-level platform 1 (N refers to the furthest drill pipe finger beam 2 that moves forward), and increase the spacing between this finger beam 2(N) and the front walkway of the platform 1. By calculating the adjustment distance of finger beam 2(N), use the servo motor 20 to drive the adjusting screw 8 and the shift fork 7 to adjust finger beam 2(N) into place. Then adjust the positions of adjacent finger beams 2 in sequence until the entire second-level platform drill pipe finger beam spacing adjustment is completed. When increasing the finger beam spacing, the specific workflow for adjusting the drill pipe finger beam spacing is the same as that for decreasing the finger beam spacing, except for the order and direction of finger beam movement.

Claims

1. A two-layer bench drill rod finger beam with automatically adjustable pipe spacing, characterized in that, Includes finger beam guide rods (5) symmetrically installed on opposite sides of the platform (1) in the vertical direction. Each finger beam guide rod (5) has several finger beams (2) arranged in parallel from top to bottom on its inner side. Each finger beam (2) is connected to the finger beam guide rod (5) with a sliding assembly. Each finger beam guide rod (5) is connected to a finger beam drive assembly on its outer side. The sliding assembly includes a finger beam sleeve (3), which is located at one end of the finger beam (2) near the platform (1), and a roller (22) is provided between the finger beam sleeve (3) and the finger beam (2); each finger beam sleeve (3) has a U-shaped groove (4) on the side away from the finger beam (2), and the through direction of the U-shaped groove (4) is consistent with the length direction of the finger beam (2); The finger beam drive assembly includes a cylinder guide rod (12) and an adjusting screw (8) arranged parallel to the finger beam guide rod (5). A screw guide sleeve (9) is coaxially sleeved on the outside of the adjusting screw (8). Both ends of the screw guide sleeve (9) are provided with pull-in flip rings (10). A fork (7) is provided on the outer wall of the fork flip ring (10). When the fork (7) is in a horizontal position, it can be locked in the opening of the U-shaped stop groove (4). The screw guide sleeve (9) is connected to the cylinder guide rod through a transition plate. The cylinder guide sleeve (13) is coaxially sleeved on the outer wall of the cylinder guide rod (12); the cylinder guide sleeve (13) is provided with ear seat A (14), the shift fork (7) is provided with ear seat B (16), one end of the flipping cylinder (11) is connected to ear seat A (14) by pin A (15) to form a whole, and the other end of the cylinder (11) is connected to ear seat B (16) by pin B (17) to form a whole; one end of the adjusting screw (8) is connected to the servo motor (20); A bevel gear B (24) is coaxially mounted on the main shaft of the servo motor (20), and a bevel gear A (23) is mounted on one end of the adjusting screw (8). The bevel gear A (23) meshes with the bevel gear B (24). A laser rangefinder (19) is provided on one side of the finger beam guide rod (5), and the laser rangefinder (19) is irradiated in the same direction as the axis of the finger beam guide rod (5). The laser beam emitted by the laser rangefinder (19) illuminates the horizontal fork (7), and the reflection on the fork (7) is used to measure the moving distance. The moving distance of the fork (7) is the same as the moving distance of the finger beam (2).

2. The two-layer bench drill rod finger beam with automatically adjustable pipe spacing according to claim 1, characterized in that, The finger beam sleeve (3) is provided with a threaded hole, and a clamping bolt (18) is installed in the threaded hole.

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