Automatic pipe arranging device for well repair

Abstract

The invention discloses an automatic pipe arranging device for well repair and relates to the technical field of petroleum well repair engineering. A receiving and conveying mechanism, a transferring mechanism and a pipe arranging frame are arranged on the base, the receiving and conveying mechanism comprises an overturning cylinder, the right side of the overturning cylinder is connected to the base through a hinge, the middle of the overturning cylinder is connected with a swing arm through a hinge, and a bearing wheel is arranged on the lower portion of the swing arm. One side of an electric push rod A is connected to the base through a hinge, and the other side of the electric push rod A is connected to the swing arm through a hinge. A U-shaped groove with an upward opening is formed in the overturning cylinder, and a plug is arranged at the right end of the U-shaped groove of the overturning cylinder. The device has the beneficial effects that the three-dimensional rotatable and telescopic structure of the transfer mechanism is arranged, the pipe grabber can grab the oil pipe at any position of the three-dimensional space, the receiving and conveying mechanism can automatically complete the actions of receiving and conveying the oil pipe, the actions are not related, and the oil pipe can be automatically conveyed as long as the transfer speed of the transfer mechanism exceeds the oil pipe lifting speed of the power tongs. The oil pipe arranging device is high in pipe arranging efficiency, simple in structure and safe to operate.

Description

Technical Field

[0001] The invention relates to the field of petroleum well repair engineering technology, and in particular to an automatic pipe laying device for well repair. Background Art

[0002] At present, in the process of oil well repair, the use of oil well repair pipe laying device to replace manual pipe laying not only has a high degree of mechanization, can save a lot of manpower and material resources, improve work efficiency, but also can greatly reduce the area occupied by the oil pipe; A Chinese patent document with publication number CN105672913 A and titled "A Pipe Arranging Device for Oil Well Repair" discloses a pipe arranging device for oil well repair, which includes a main support, a guide rail and a slide bar movable along the guide rail are provided above the main support, a moving rod parallel to the slide bar is provided below the slide bar, a lifting mechanism movable horizontally along the slide bar is provided on the slide bar, the moving rod is connected to the lifting mechanism and can be lifted and lowered accordingly, when a tubing lift is used to transport the tubing delivered to the front side of the main support to the wellhead, the action rhythm between the tubing lift and the pipe arranging device needs to be coordinated, and they need to wait for each other, which greatly reduces the work efficiency. At the same time, the structure also has the problems of complex structure and high cost. Summary of the invention

[0003] In order to solve the problems of low efficiency and complex structure of the current well repair pipe laying machine, the present invention provides an automatic well repair pipe laying device.

[0004] The technical solution provided by the present invention is: an automatic pipe arrangement device for well repair, comprising a base, on which a pick-up and delivery mechanism, a transfer mechanism and a pipe arrangement rack are respectively arranged, the pick-up and delivery mechanism comprises a turning cylinder, the right side of the turning cylinder is connected to the base through a hinge, the middle part of the turning cylinder is connected to a swing arm through a hinge, a load-bearing wheel is arranged at the lower part of the swing arm, the load-bearing wheel falls on the base, the base is provided with an electric push rod A on the right side of the swing arm, one side of the electric push rod A is connected to the base through a hinge, and the other side of the electric push rod A is connected to the swing arm through a hinge, a U-shaped groove with an opening facing upward is opened on the turning cylinder, and a plug is arranged at the right end of the U-shaped groove of the turning cylinder; The transfer mechanism includes a support column, the support column is fixedly connected to the base, the upper part of the support column is connected to the X telescopic mechanism, the other side of the X telescopic mechanism is connected to the Y telescopic mechanism, the other end of the Y telescopic mechanism is connected to the Z telescopic mechanism, the other end of the Z telescopic mechanism is connected to the pipe grabber, the pipe grabber is provided with a through groove, and the pipe grabber is equipped with an electromagnetic suction cup in the groove; The structures of the X telescopic mechanism, the Y telescopic mechanism and the Z telescopic mechanism are the same. The Y telescopic mechanism is described below: it includes a telescopic sleeve and a telescopic column, the telescopic sleeve and the telescopic column are connected in a guiding manner, a rotating sleeve is provided on one side of the telescopic sleeve, the rotating sleeve is perpendicular to the axis of the telescopic sleeve, the rotating sleeve is sleeved on the outside of another telescopic column, the telescopic column extends a positioning tube into the rotating sleeve, the positioning tube and the rotating sleeve are connected to an axial limit and mutually rotatable relationship through a bearing, a motor is fixedly connected in the positioning tube, the output shaft of the motor is fixedly connected to a gear, a gear ring is processed in the rotating sleeve, and the gear ring is meshed with the gear; The rotating sleeve of the X telescopic mechanism is connected to an electric push rod B, and the other end of the electric push rod B is connected to the telescopic column. The rotating sleeve of the Y telescopic mechanism is connected to an electric push rod C, and the other end of the electric push rod C is connected to the telescopic column. The rotating sleeve of the Z telescopic mechanism is connected to an electric push rod D, and the other end of the electric push rod D is connected to the telescopic column.

[0005] The plug is provided with a contact switch on the end surface facing the U-shaped groove.

[0006] The pipe rack is composed of a fixed column, a movable column and a telescopic beam. The fixed column is fixedly connected to the base, and the telescopic beam is transversely connected between the fixed column and the movable column. The telescopic beam includes a large square tube and a small square tube. The large square tube is welded to the fixed column, and the small square tube is welded to the movable column. The small square tube and the large square tube are guided and plugged together. A nut is welded inside the small square tube. The nut is threadedly connected to a lead screw. The lead screw passes through the fixed column. A ring groove is processed on the lead screw. Upper and lower limit plates are welded on the fixed column and clamped in the ring groove of the lead screw. A movable support is arranged at the lower part of the movable column, and the movable support is slidably connected to the base.

[0007] The turning cylinder has a notch on the U-shaped groove, and the length of the notch is greater than the length of the pipe grabber.

[0008] The electric push rod B, the electric push rod C, the electric push rod D and the motor are controlled by remote control.

[0009] The beneficial effects of the present invention are as follows: a three-dimensional rotatable and retractable structure of the transfer mechanism is provided, the pipe grabber can grab the oil pipe at any position in the three-dimensional space, the receiving and delivering mechanism can automatically complete the actions of receiving and delivering the oil pipe, and there is no mutual correlation between the two. As long as the transfer speed of the transfer mechanism exceeds the speed of the power clamp to lift and lower the oil pipe, the oil pipe can be received, delivered and arranged during well repair, with high pipe arrangement efficiency, simple structure and safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 It is a schematic diagram of the structure of the present invention; Attached Figure 2 It is a structural schematic diagram of the transfer mechanism in the present invention; Attached Figure 3It is a structural schematic diagram of the X telescopic column in the present invention; Attached Figure 4 is a cross-sectional view of the turning cylinder of the present invention; Attached Figure 5 Yes Figure 4 AA section view; Attached Figure 6 It is a structural schematic diagram of the telescopic beam in the present invention.

[0011] In the figure, 1-base, 2-transport mechanism, 3-transfer mechanism, 4-pipe rack, 5-turning cylinder, 6-swing arm, 7-load-bearing wheel, 8-electric push rod A, 9-support column, 10-X telescopic mechanism, 11-Y telescopic mechanism, 12-Z telescopic mechanism, 13-pipe grabber, 14-groove, 15-electric push rod D, 16-electric push rod C, 17-electric push rod B, 18-telescopic sleeve, 19-telescopic column, 20-rotating sleeve, 21-positioning tube, 22-motor, 23-gear, 24-gear ring, 25-contact switch, 26-fixed column, 27-movable column, 28-telescopic beam, 29-movable support, 30-large square tube, 31-small square tube, 32-nut, 33-screw, 34-limiting plate, 35-plug, 36-notch, 37-U-shaped groove. DETAILED DESCRIPTION

[0012] like Figures 1 to 6 As shown, an automatic pipe arrangement device for well repair comprises a base 1, on which a pick-up and delivery mechanism 2, a transfer mechanism 3 and a pipe arrangement rack 4 are respectively arranged, the pick-up and delivery mechanism 2 comprises a turning cylinder 5, the right side of the turning cylinder 5 is connected to the base 1 by a hinge, the middle part of the turning cylinder 5 is connected to a swing arm 6 by a hinge, the lower part of the swing arm 6 is provided with a load-bearing wheel 7, the load-bearing wheel 7 falls on the base 1, the base 1 is provided with an electric push rod A8 on the right side of the swing arm 6, one side of the electric push rod A8 is connected to the base 1 by a hinge, and the other side of the electric push rod A8 is connected to the swing arm 6 by a hinge, the turning cylinder 5 is provided with a U-shaped groove 37 with an opening facing upward, and the turning cylinder 5 is provided with a plug 35 at the right end of the U-shaped groove 37; The transfer mechanism 3 includes a support column 9, the support column 9 is fixedly connected to the base 1, the upper part of the support column 9 is connected to the X telescopic mechanism 10, the other side of the X telescopic mechanism 10 is connected to the Y telescopic mechanism 11, the other end of the Y telescopic mechanism 11 is connected to the Z telescopic mechanism 12, the other end of the Z telescopic mechanism 12 is connected to the pipe grabber 13, the pipe grabber 13 is provided with a through groove 14, and the pipe grabber 13 is installed with an electromagnetic suction cup in the groove 14; The X telescopic mechanism 10, the Y telescopic mechanism 11 and the Z telescopic mechanism 12 have the same structure. The Y11 telescopic mechanism is used for the following description: it includes a telescopic sleeve 18 and a telescopic column 19, the telescopic sleeve 18 and the telescopic column 19 are connected in a guiding manner, a rotating sleeve 20 is provided on one side of the telescopic sleeve 18, the rotating sleeve 20 is perpendicular to the axis of the telescopic sleeve 18, the rotating sleeve 20 is sleeved on the outside of another telescopic column 19, the telescopic column 19 extends a positioning tube 21 into the rotating sleeve 20, the positioning tube 21 and the rotating sleeve 20 are connected by a bearing to form an axial limit and mutually rotatable relationship, a motor 22 is fixedly connected in the positioning tube 21, the output shaft of the motor 22 is fixedly connected to the gear 23, a gear ring 24 is processed in the rotating sleeve 20, and the gear ring 24 is meshed with the gear 23; The rotating sleeve 20 of the X telescopic mechanism 10 is connected to an electric push rod B17, and the other end of the electric push rod B17 is connected to the telescopic column 19. The rotating sleeve 20 of the Y telescopic mechanism 11 is connected to an electric push rod C16, and the other end of the electric push rod C16 is connected to the telescopic column 19. The rotating sleeve 20 of the Z telescopic mechanism 12 is connected to an electric push rod D15, and the other end of the electric push rod D15 is connected to the telescopic column 19. Through the above structure, the transfer mechanism 3 can realize that the pipe grabber 13 stays at any position in the three-dimensional space.

[0013] The plug 35 is provided with a contact switch 25 on the end surface facing the U-shaped groove 37 .

[0014] When receiving the oil pipe, the electric push rod A8 shrinks, and the left side of the turning cylinder 5 rises. When the well repair power tong releases the oil pipe to the turning cylinder 5, the contact switch 25 is activated, the electric push rod A8 extends, and the left side of the turning cylinder 5 turns downward. Then, by operating the transfer mechanism 3, the pipe grabber 13 grabs the oil pipe by magnetic force and rotates it to the pipe rack 4. The oil pipe is discharged in order according to the direction. When the oil pipe leaves the turning cylinder 5, the contact switch 25 is activated, the electric push rod A8 shrinks, and the turning cylinder 5 turns upward again to wait for the oil pipe to fall. When the oil pipe is lowered to the wellhead, the transfer mechanism 3 puts the oil pipe into the turning cylinder 5, the contact switch 25 is actuated again, the electric push rod A8 contracts, and the turning cylinder 5 turns upward again to wait for the well repair power tongs to grab it. During this process, the transfer mechanism 3 prepares the next oil pipe to the vicinity of the turning cylinder 5.

[0015] The pipe rack 4 is composed of a fixed column 26, a movable column 27 and a telescopic beam 28. The fixed column 26 is fixedly connected to the base 1. The telescopic beam 28 is transversely connected between the fixed column 26 and the movable column 27. The telescopic beam 28 includes a large square tube 30 and a small square tube 31. The large square tube 30 is welded to the fixed column 26, and the small square tube 31 is welded to the movable column 27. The small square tube 31 and the large square tube 30 are guided and plugged together. A nut 32 is welded in the small square tube 31. The nut 32 is threadedly connected to a lead screw 33. The lead screw 33 passes through the fixed column 26. An annular groove is machined on the lead screw 33. Upper and lower limit plates 34 are welded on the fixed column 26 and stuck in the annular groove of the lead screw 33. According to the well repair depth and the number of oil pipes lifted and lowered, the lead screw 33 can be rotated to adjust the distance between the fixed column 26 and the movable column 27. When the operation is completed, the width of the pipe rack 4 is adjusted to the minimum for easy transportation. A movable support 29 is provided at the lower part of the movable column 27 , and the movable support 29 is slidably connected to the base 1 .

[0016] The turning cylinder 5 has a notch 36 on the U-shaped groove 37 . The length of the notch 36 is greater than the length of the pipe grabber 13 , so that the pipe grabber 13 can easily suck the oil pipe into the groove 14 .

[0017] The electric push rods B16, C17, D15 and the motor 22 are remotely controlled, and the operator can control the position of the pipe grabber 13 in any three-dimensional space through the remote control.

[0018] The transfer mechanism 3 is provided with a three-dimensional rotatable and retractable structure, and the pipe grabber 13 can grab the oil pipe at any position in the three-dimensional space. The receiving and delivering mechanism 2 can automatically complete the actions of receiving and delivering the oil pipe. There is no mutual correlation between the two. As long as the transfer speed of the transfer mechanism 3 exceeds the speed of the power clamp to lift and lower the oil pipe, the oil pipe can be received, delivered and arranged during well repair. The pipe arrangement efficiency is high, the structure is simple, and the operation is safe.

Claims

1. An automatic pipe laying device for well repair, comprising a base (1), characterized in that: The base (1) is provided with a pick-up and delivery mechanism (2), a transfer mechanism (3) and a pipe rack (4), respectively. The pick-up and delivery mechanism (2) comprises a turning cylinder (5), the right side of the turning cylinder (5) is connected to the base (1) by a hinge, the middle part of the turning cylinder (5) is connected to a swing arm (6) by a hinge, the lower part of the swing arm (6) is provided with a load-bearing wheel (7), the load-bearing wheel (7) falls on the base (1), the base (1) is provided with an electric push rod A (8) on the right side of the swing arm (6), one side of the electric push rod A (8) is connected to the base (1) by a hinge, and the other side of the electric push rod A (8) is connected to the swing arm (6) by a hinge, the turning cylinder (5) is provided with a U-shaped groove (37) with an opening facing upward, and the turning cylinder (5) is provided with a plug (35) at the right end of the U-shaped groove (37); The transfer mechanism (3) comprises a support column (9), the support column (9) is fixedly connected to the base (1), the upper part of the support column (9) is connected to an X telescopic mechanism (10), the other side of the X telescopic mechanism (10) is connected to a Y telescopic mechanism (11), the other end of the Y telescopic mechanism (11) is connected to a Z telescopic mechanism (12), the other end of the Z telescopic mechanism (12) is connected to a pipe grabber (13), a through groove (14) is formed on the pipe grabber (13), and an electromagnetic sucker is installed in the groove (14) of the pipe grabber (13); The X telescopic mechanism (10), the Y telescopic mechanism (11) and the Z telescopic mechanism (12) have the same structure. The Y (11) telescopic mechanism is described below: the telescopic mechanism comprises a telescopic sleeve (18) and a telescopic column (19). The telescopic sleeve (18) and the telescopic column (19) are connected in a guiding manner. A rotating sleeve (20) is provided on one side of the telescopic sleeve (18). The rotating sleeve (20) is perpendicular to the axis of the telescopic sleeve (18). The rotating sleeve (20) is sleeved on the outer side of another telescopic column (19). The telescopic column (19) extends a positioning tube (21) into the rotating sleeve (20). The positioning tube (21) and the rotating sleeve (20) are connected to each other in an axially limited and mutually rotatable relationship through a bearing. A motor (22) is fixedly connected inside the positioning tube (21). The output shaft of the motor (22) is fixedly connected to a gear (23). A gear ring (24) is processed inside the rotating sleeve (20). The gear ring (24) is meshed with the gear (23). The rotating sleeve (20) of the X telescopic mechanism (10) is connected to an electric push rod B (17), and the other end of the electric push rod B (17) is connected to the telescopic column (19). The rotating sleeve (20) of the Y telescopic mechanism (11) is connected to an electric push rod C (16), and the other end of the electric push rod C (16) is connected to the telescopic column (19). The rotating sleeve (20) of the Z telescopic mechanism (12) is connected to an electric push rod D (15), and the other end of the electric push rod D (15) is connected to the telescopic column (19).

2. The automatic pipe laying device for well repairing according to claim 1, characterized in that: The plug (35) is provided with a contact switch (25) on the end surface facing the U-shaped groove (37).

3. The automatic pipe laying device for well repairing according to claim 1, characterized in that: The pipe rack (4) is composed of a fixed column (26), a movable column (27) and a telescopic beam (28), wherein the fixed column (26) is fixedly connected to the base (1), the telescopic beam (28) is transversely connected between the fixed column (26) and the movable column (27), the telescopic beam (28) comprises a large square tube (30) and a small square tube (31), the large square tube (30) is welded to the fixed column (26), the small square tube (31) is welded to the movable column (27), the small square tube (31) and the large square tube (30) are guided and plugged together, a nut (32) is welded inside the small square tube (31), the nut (32) is threadedly connected to a lead screw (33), the lead screw (33) passes through the fixed column (26), an annular groove is processed on the lead screw (33), and two upper and lower limit plates (34) are welded on the fixed column (26) and stuck in the annular groove of the lead screw (33); A movable support (29) is provided at the lower part of the movable column (27), and the movable support (29) is slidably connected to the base (1).

4. The automatic pipe laying device for well repairing according to claim 1, characterized in that: The turning cylinder (5) is provided with a notch (36) on the U-shaped groove (37), and the length of the notch (36) is greater than the length of the pipe grabber (13).

5. The automatic pipe laying device for well repairing according to claim 1, characterized in that: The electric push rod B (16), the electric push rod C (17), the electric push rod D (15) and the motor (22) are remotely controlled.

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