Feeding and discharging auxiliary machine for drill rod repair

Abstract

A feeding and discharging auxiliary machine for drill rod repairing comprises a rack, a feeding and discharging turning plate mechanism and a conveying wheel mechanism are arranged on the rack, the feeding and discharging turning plate mechanism comprises a turning plate and a first telescopic air cylinder, the turning plate is installed on a lifting plate, and the upper end of the first telescopic air cylinder is connected with the lifting plate through a telescopic rod; a first V-shaped notch and a second V-shaped notch are formed in the upper surface of the turning plate; the conveying wheel mechanism comprises a rotating motor speed reducer and a rotating shaft, the rotating shaft is connected with the driving end of the driving mechanism, the outer surface of the rotating shaft is fixedly sleeved with two rocker arms, an output shaft of the rotating motor speed reducer sequentially penetrates through the two rocker arms and is provided with a roller, and a V-shaped groove surrounds the outer surface of the roller; the groove bottom position of the first V-shaped groove opening is right opposite to the left inclined face of the V-shaped groove in the front-back direction, and the groove bottom position of the V-shaped groove is right opposite to the left inclined face of the second V-shaped groove opening in the front-back direction. The petroleum drill rod feeding and discharging device overcomes the defects in the prior art and can automatically achieve rapid feeding and discharging work of the petroleum drill rod so as to improve the repairing efficiency and safety of the petroleum drill rod.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to oil drilling equipment, specifically to an auxiliary machine for loading and unloading drill pipe for repair. Background Technology

[0002] During oil drilling, drill pipes are connected one by one using internal and external tapered threads. Due to the high stress and temperature experienced during drilling, coupled with the scouring and friction from high-pressure drilling mud, the drill pipe shoulder and thread profile are easily deformed, worn, or locally damaged, rendering the entire drill pipe unusable. Current technology utilizes the characteristics of tapered threads to mechanically repair the thread profile, allowing the drill pipe to be reused multiple times.

[0003] In the traditional drill pipe repair process, loading and unloading work mostly relies on manual operation. Furthermore, hoisting equipment is required to lift the oil drill pipe during loading and unloading. The entire process is not only complex and inefficient, but also poses safety hazards. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an auxiliary machine for loading and unloading drill pipes for repair, which overcomes the shortcomings of the prior art, is easy to operate, and can automatically realize the rapid loading and unloading of oil drill pipes, so as to improve the repair efficiency and safety of oil drill pipes.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An auxiliary machine for loading and unloading drill pipes for repair includes a frame, on which are mounted several sets of loading and unloading tilting mechanisms and several sets of conveying wheel mechanisms.

[0007] Each of the aforementioned loading and unloading flip-plate mechanisms includes a flip-plate and a first telescopic cylinder. The flip-plate is vertically installed on the upper surface of the lifting plate. The first telescopic cylinder is installed inside the frame. The upper end of the first telescopic cylinder is connected to the telescopic rod via a piston rod. The upper end of the telescopic rod is connected to the lower surface of the lifting plate. The upper surface of the flip-plate is provided with a first V-shaped groove and a second V-shaped groove from left to right.

[0008] Each of the aforementioned conveyor wheel mechanisms includes a rotary motor reducer and a rotating shaft. The rotating shaft is connected to the drive end of a drive mechanism, which drives the rotating shaft to rotate. Both ends of the rotating shaft are mounted on a frame via bearing seats. Two rocker arms are fixedly sleeved on the outer surface of the rotating shaft, and the two rocker arms are arranged parallel to each other. The rotary motor reducer is fixedly installed outside one of the rocker arms. The output shaft of the rotary motor reducer passes through the two rocker arms in sequence and is connected to the two rocker arms via bearings. A roller is provided between the two rocker arms. The roller is fixedly installed on the outer surface of the output shaft of the rotary motor reducer, and a V-groove surrounds the outer surface of the roller.

[0009] The bottom of the first V-groove is directly opposite the left oblique front of the V-groove, the bottom of the V-groove is directly opposite the left oblique front of the second V-groove, and the bottom of the second V-groove is located on the right side of the roller.

[0010] Preferably, the driving mechanism includes a second telescopic cylinder, one end of which is hinged to a lifting reducer via a hinge shaft. The lifting reducer is fixedly mounted on the frame. The other end of the second telescopic cylinder is connected to one end of a drive rod via a piston rod. The other end of the drive rod is connected to one end of a connecting rod via a pin shaft. The other end of the connecting rod is fixedly sleeved on the outer surface of the rotating shaft.

[0011] Preferably, a guide plate is arranged parallel below the lifting plate, the guide plate is fixedly installed on the frame, a guide sleeve is fixedly embedded in the guide plate, and a guide rod is vertically installed below the lifting plate, the guide rod passes through the guide sleeve and is slidably connected to the guide sleeve.

[0012] Preferably, a rotating shaft support is fixedly installed on the lower surface of the lifting plate, and the upper end of the telescopic rod is rotatably connected to the rotating shaft support via a rotating shaft.

[0013] This invention provides an auxiliary machine for loading and unloading drill pipes for repair. It offers the following advantages: By controlling the piston rod of the first telescopic cylinder to extend upwards, the drill pipe to be repaired slides down the inclined surface on the left side of the first V-groove to the bottom of the groove. Since the bottom of the V-groove is directly opposite the left inclined surface of the second V-groove, the repaired drill pipe on the roller is supported upwards by the left inclined surface of the second V-groove and slides down to the bottom of the second V-groove, thus detaching the repaired drill pipe from the roller. Then, controlling the piston rod of the first telescopic cylinder to move the flap downwards, and simultaneously controlling the drive end of the drive mechanism to rotate the rotating shaft counterclockwise, causing the roller to move upwards. This allows subsequent drill pipes to be repaired to slide down into the V-groove on the outer surface of the roller again, guided by the left inclined surface of the V-groove. This ensures that drill pipes can be loaded and unloaded quickly and stably, effectively improving the efficiency and safety of drill pipe repair. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.

[0015] Figure 1 A schematic diagram of the structure of this utility model;

[0016] Figure 2 A schematic diagram of the structure of the loading / unloading tilting mechanism and the conveying wheel mechanism in this utility model;

[0017] Figure 3 A schematic diagram of the loading and unloading tilting mechanism in this utility model;

[0018] Figure 4 A schematic diagram of the conveyor wheel mechanism in this utility model;

[0019] Explanation of the labels in the diagram:

[0020] 1. Frame; 2. Flip plate; 3. First telescopic cylinder; 4. Lifting plate; 5. Telescopic rod; 6. First V-groove; 7. Second V-groove; 8. Second telescopic cylinder; 9. Rotary motor reducer; 10. Drive rod; 11. Connecting rod; 12. Rotating shaft; 13. Bearing seat; 14. Rocker arm; 15. Roller; 16. V-groove; 17. Guide plate; 18. Guide sleeve; 19. Guide rod; 20. Rotating shaft support; 21. Lifting reducer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] Example 1, as Figures 1 to 4 As shown, an auxiliary machine for loading and unloading drill pipes for repair includes a frame 1, on which several sets of loading and unloading tilting mechanisms and several sets of conveying wheel mechanisms are installed.

[0023] The loading and unloading tilting mechanism includes a tilting plate 2 and a first telescopic cylinder 3. The tilting plate 2 is vertically installed on the upper surface of the lifting plate 4. The first telescopic cylinder 3 is installed inside the frame 1. The upper end of the first telescopic cylinder 3 is connected to the telescopic rod 5 through a piston rod. The upper end of the telescopic rod 5 is connected to the lower surface of the lifting plate 4. The upper surface of the tilting plate 2 is provided with a first V-shaped groove 6 and a second V-shaped groove 7 from left to right.

[0024] The conveyor wheel mechanism includes a rotary motor reducer 9 and a rotating shaft 12. The rotating shaft 12 is connected to the drive end of a drive mechanism, which drives the rotating shaft 12 to rotate. The two ends of the rotating shaft 12 are mounted on the frame 1 through bearing seats 13. Two rocker arms 14 are fixedly sleeved on the outer surface of the rotating shaft 12. The two rocker arms 14 are arranged parallel to each other. The rotary motor reducer 9 is fixedly installed on the outside of one of the rocker arms 14. The output shaft of the rotary motor reducer 9 passes through the two rocker arms 14 in sequence and is connected to the two rocker arms 14 through bearings. A roller 15 is arranged between the two rocker arms 14. The roller 15 is fixedly installed on the outer surface of the output shaft of the rotary motor reducer 9. A V-groove 16 surrounds the outer surface of the roller 15.

[0025] The bottom of the first V-groove 6 is directly opposite the left oblique front of the V-groove 16, and the bottom of the V-groove 16 is directly opposite the left oblique front of the second V-groove 7. The bottom of the second V-groove 7 is located on the right side of the roller 15.

[0026] Working principle:

[0027] When used for the first time, first control the piston rod of the first telescopic cylinder 3 in each loading and unloading flip plate mechanism to extend upward, so as to drive the lifting plate 4 to rise upward through the telescopic rod 5, so that the left end of the flip plate 2 corresponds to the discharge end of the loading frame; since the oil drill pipe is a cylindrical structure, it can be guided by the inclined surface on the left side of the first V-groove 6, so that the oil drill pipe to be repaired slides down the inclined surface on the left side of the first V-groove 6 to the bottom of the first V-groove 6.

[0028] Then, the piston rod of the first telescopic cylinder 3 is controlled to retract, so that the lifting plate 4 is lowered to the lowest point through the telescopic rod 5. At the same time, the drive end of the drive mechanism is controlled to drive the rotating shaft 12 to rotate counterclockwise, so that the two rocker arms 14 on the outer surface of the rotating shaft 12 rotate upward, and then drive the roller 15 between the two rocker arms 14 to move upward. Since the bottom of the first V-groove 6 is directly opposite to the left inclined surface of the V-groove 16, the oil drill pipe to be repaired will fall on the left inclined surface of the V-groove 16. Then, through the guiding effect of the left inclined surface of the V-groove 16, the oil drill pipe will finally slide into the V-groove 16 on the outer surface of the roller 15.

[0029] Then, the output shaft of the rotary motor reducer 9 is controlled to rotate, which in turn drives the roller 15 to rotate. Through the synchronous rotation of each roller 15, the oil drill pipe to be repaired is moved forward along its axial direction to the corresponding position within the lathe spindle hole. After the oil drill pipe is clamped by the lathe chuck, the drive end of the drive mechanism is controlled to rotate the rotary shaft 12 clockwise, causing the two rocker arms 14 to rotate downwards. This causes the roller 15 between the two rocker arms 14 to move downwards to its initial position. The lathe then begins operation to repair the threads on the oil drill pipe head. After repair, the drive end of the drive mechanism is controlled to rotate the rotary shaft 12 counterclockwise, causing the roller 15 to move upwards again to support the oil drill pipe. The lathe chuck is then released, and the drive end of the drive mechanism is controlled to rotate the rotary shaft 12 clockwise again, causing the roller 15 to move downwards to its initial position. The output shaft of the rotary motor reducer 9 is then controlled to rotate counterclockwise, causing the repaired oil drill pipe to move backwards to the designated position.

[0030] Then, the piston rod of the first telescopic cylinder 3 can be controlled to extend upward again, so that the left end of the flap 2 is aligned with the discharge end of the feeding rack again. This causes the subsequent oil drill pipe to be repaired to slide down the inclined surface on the left side of the first V-groove 6 to the bottom of the first V-groove 6. Simultaneously, since the bottom of the V-groove 16 is directly opposite the left inclined surface of the second V-groove 7, the repaired oil drill pipe on the roller 15 will be supported upward by the left inclined surface of the second V-groove 7 and slide down the left inclined surface of the second V-groove 7 to the bottom of the second V-groove 7. This causes the repaired oil drill pipe to detach from the drum 15. Then, the piston rod of the first telescopic cylinder 3 is controlled to move the flap 2 downward, and at the same time, the drive end of the drive mechanism is controlled to drive the rotating shaft 12 to rotate counterclockwise, so as to move the drum 15 upward, so that the subsequent oil drill pipe to be repaired can slide into the V-groove 16 on the outer surface of the drum 15 through the guiding action of the left inclined surface of the V-groove 16. At this time, the right side of the second V-groove 7 is exactly aligned with the feed end of the unloading rack, so that the repaired oil drill pipe can be directly rolled onto the unloading rack along the rear inclined surface of the second V-groove 7.

[0031] Then repeat the above steps to achieve automatic loading and unloading of oil drill pipes during repair.

[0032] In Embodiment 2, as a further preferred embodiment of Embodiment 1, the driving mechanism includes a second telescopic cylinder 8. One end of the second telescopic cylinder 8 is hinged to the lifting reducer 21 via a hinge shaft. The lifting reducer 21 is fixedly mounted on the frame 1. The other end of the second telescopic cylinder 8 is connected to one end of the drive rod 10 via a piston rod. The other end of the drive rod 10 is connected to one end of the connecting rod 11 via a pin shaft. The other end of the connecting rod 11 is fixedly sleeved on the outer surface of the rotating shaft 12.

[0033] Therefore, when the rotating shaft 12 rotates counterclockwise, the piston rod of the second telescopic cylinder 8 can be extended, thereby driving the drive rod 10 to move axially toward the connecting rod 11. Since the connecting rod 11 and the drive rod 10 are rotatably connected by a pin, the movement of the drive rod 10 can drive the connecting rod 11 to rotate around the rotating shaft 12. Since the other end of the connecting rod 11 is fixedly connected to the rotating shaft 12, the rotation of the connecting rod 11 can drive the rotating shaft 12 to rotate counterclockwise. Similarly, when the rotating shaft 12 rotates clockwise, the piston rod of the second telescopic cylinder 8 can be retracted, thereby driving the drive rod 10 to pull the connecting rod 11 to rotate in the opposite direction around the rotating shaft 12, thus driving the rotating shaft 12 to rotate clockwise. In this embodiment, the second telescopic cylinder 8 is hinged to the frame 1 via a rotating shaft seat, so when the drive rod 10 drives the connecting rod 11 to rotate, the second telescopic cylinder 8 can also make adaptive angle adjustments.

[0034] In Example 3, as a further preferred embodiment of Example 1, a guide plate 17 is arranged parallel to the lower part of the lifting plate 4. The guide plate 17 is fixedly installed on the frame 1. Two guide sleeves 18 are symmetrically fixedly embedded in the middle of the guide plate 17. Two guide rods 19 are vertically installed below the lifting plate 4. The two guide rods 19 pass through the two guide sleeves 18 respectively and are slidably connected to the guide sleeves 18. Therefore, the lifting plate 4 can be guided by the guide sleeves 18 to effectively ensure the stability of the flip plate 2 when it moves up and down.

[0035] In Example 4, as a further preferred embodiment of Example 1, a pivot support 20 is fixedly installed on the lower surface of the lifting plate 4, and the upper end of the telescopic rod 5 is rotatably connected to the pivot support 20 via a pivot. By setting the pivot support 20, the connection point between the telescopic rod 5 and the lifting plate 4 has a certain range of rotation, thereby effectively avoiding the problem of damage to the telescopic rod 5 due to angular deflection of the lifting plate 4 when the telescopic rod 5 is directly rigidly connected to the lifting plate 4.

[0036] In this invention, a controller can be provided, and the signal output terminal of the controller can be connected to the signal input terminals of the first telescopic cylinder 3, the second telescopic cylinder 8, and the rotary motor reducer 9, respectively. Thus, the control chip within the controller can achieve automated control of the first telescopic cylinder 3, the second telescopic cylinder 8, and the rotary motor reducer 9.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary machine for loading and unloading drill pipes for repair, characterized in that: Includes a frame (1), on which several sets of loading and unloading tilting mechanisms and several sets of conveying wheel mechanisms are provided. Each of the above-described loading and unloading flip-plate mechanisms includes a flip plate (2) and a first telescopic cylinder (3). The flip plate (2) is vertically installed on the upper surface of the lifting plate (4). The first telescopic cylinder (3) is installed inside the frame (1). The upper end of the first telescopic cylinder (3) is connected to the telescopic rod (5) through a piston rod. The upper end of the telescopic rod (5) is connected to the lower surface of the lifting plate (4). The upper surface of the flip plate (2) is provided with a first V-shaped groove (6) and a second V-shaped groove (7) from left to right. Each of the conveyor wheel mechanisms described in any group includes a rotary motor reducer (9) and a rotating shaft (12). The rotating shaft (12) is connected to the drive end of the drive mechanism. The drive mechanism is used to drive the rotating shaft (12) to rotate. The two ends of the rotating shaft (12) are mounted on the frame (1) through bearing seats (13). Two rocker arms (14) are fixedly sleeved on the outer surface of the rotating shaft (12). The two rocker arms (14) are arranged parallel to each other. The rotary motor reducer (9) is fixedly installed on the outside of one of the rocker arms (14). The output shaft of the rotary motor reducer (9) passes through the two rocker arms (14) in sequence and is connected to the two rocker arms (14) through bearings. A roller (15) is provided between the two rocker arms (14). The roller (15) is fixedly installed on the outer surface of the output shaft of the rotary motor reducer (9). A V-groove (16) surrounds the outer surface of the roller (15). The bottom of the first V-groove (6) is directly opposite the left oblique front of the V-groove (16), the bottom of the V-groove (16) is directly opposite the left oblique front of the second V-groove (7), and the bottom of the second V-groove (7) is located on the right side of the roller (15).

2. The auxiliary machine for loading and unloading drill pipes for repair according to claim 1, characterized in that: The driving mechanism includes a second telescopic cylinder (8), one end of which is hinged to a lifting reducer (21) via a hinge shaft. The lifting reducer (21) is fixedly mounted on the frame (1). The other end of the second telescopic cylinder (8) is connected to one end of a drive rod (10) via a piston rod. The other end of the drive rod (10) is connected to one end of a connecting rod (11) via a pin shaft. The other end of the connecting rod (11) is fixedly sleeved on the outer surface of a rotating shaft (12).

3. The auxiliary machine for loading and unloading drill pipes for repair according to claim 1, characterized in that: A guide plate (17) is arranged parallel below the lifting plate (4). The guide plate (17) is fixedly installed on the frame (1). A guide sleeve (18) is fixedly embedded in the guide plate (17). A guide rod (19) is vertically installed below the lifting plate (4). The guide rod (19) passes through the guide sleeve (18) and is slidably connected to the guide sleeve (18).

4. The auxiliary machine for loading and unloading drill pipes for repair according to claim 1, characterized in that: The lower surface of the lifting plate (4) is fixedly installed with a rotating shaft support (20), and the upper end of the telescopic rod (5) is rotatably connected to the rotating shaft support (20) through a rotating shaft.

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