Automatic oil pipe bridge

Abstract

The utility model relates to the technical field of oil pipe storage, in particular to an automatic oil pipe bridge. Comprising a plurality of frame bodies, stop levers are fixed to the rear ends of the frame bodies, lifting assemblies are arranged at the front ends and the rear ends of the frame bodies, the telescopic ends of the lifting assemblies are rotationally connected with the ends, on one sides of the lifting assemblies, of the frame bodies, vertically-arranged upper oil cylinders are fixed to the front ends of the frame bodies, upper blocks are fixed to the upper ends of the upper oil cylinders, and a rotating disc is rotationally connected to any one of the left side and the right side of each upper block; a groove is formed in the rear side of the rotary disc, a deflector rod is eccentrically fixed to the rotary disc, a limiting pin is eccentrically fixed to the rotary disc, a long groove is formed in the rotary disc, a sliding rod is slidably clamped in the long groove and located in the lower end of the long groove, a sliding block is rotationally connected to the sliding rod, a connecting rod is fixed to the lower end of the sliding block, and a balancing weight is fixed to the lower end of the connecting rod. In the oil pipe lifting process, the upper oil cylinder can drive the rotating disc to move up and down, and therefore multiple layers of oil pipes can be placed on the multiple frame bodies through the upper oil cylinder and the rotating disc, and the bearing capacity of the pipe bridge frame can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe storage, in particular to an automatic oil pipe bridge. Background Art

[0002] In the past, the transportation of tubing in tubing tripping operations generally used workover rigs and slide rails to assist in converting the tubing from a vertical state to a horizontal state, and then manually lifting the tubing onto the pipe bridge and rolling the tubing to arrange the tubing neatly; or manually lifting the tubing on the pipe bridge onto the guide rails and using the workover rig power to convert the tubing from a horizontal state to a vertical state. The placement of the tubing on the pipe bridge and the lifting of the tubing from the pipe bridge to the slide rails were all done manually, which was labor-intensive and unsafe.

[0003] The patent document with publication number CN212508146U discloses an oil pipe transport and placement device, in which the placement process is as follows: (1) the left leg is raised or the right leg is lowered to make the pipe bridge tilted with the left side higher and the right side lower; (2) after the mechanical arm cooperates with the gripper to grab the oil pipe from the wellhead, the lower side of the mechanical arm moves to the upper side of the left end of the shifting notch. At this time, the gripper grabs the oil pipe and is located above the connecting and shifting piece. The front end of the oil pipe is located in front of the front gripper, and the rear end of the oil pipe is located behind the rear gripper; (3) the mechanical arm drives the oil pipe to move downward. When the mechanical arm moves downward, its lower end pushes the first side of the shifting notch, so that the connecting and shifting piece rotates in the reverse direction around the pin shaft. The pipe notch rotates clockwise, and when the pipe notch opens upward, the front and rear parts of the oil pipe are located in the corresponding positions of the pipe notch respectively; (4) the gripper is opened to separate the oil pipe from the gripper and allow the oil to fall into the pipe notch; (5) the mechanical arm moves upward, so that the upper end of the mechanical arm pushes the second side of the notch to make the connecting piece move clockwise around the pin shaft, and the pipe notch will rotate to a state where the opening faces right, i.e., the initial state. At this time, the oil pipe will roll from the opening of the pipe notch to the pipe bridge. Since the official bridge is tilted with the left side higher and the right side lower, the oil pipe will roll from the left end of the pipe bridge to the right under the action of gravity until it is blocked by the right pipe stop pin or other oil pipe blocks and stops.

[0004] The access process is as follows: (a) lower the left leg or raise the right leg to tilt the pipe bridge with the left side lower and the right side higher. The oil pipe rolls to the left of the pipe bridge under the action of gravity, and the leftmost oil pipe rolls into the pipe notch; (b) the mechanical arm moves downward, and the lower end of the mechanical arm pushes the first side of the toggle notch to make the connecting piece rotate counterclockwise around the pin shaft, the pipe notch opens upward, and the oil pipe is located in the pipe notch. When the gripper is located below the oil pipe, the downward movement stops; (c) the gripper is opened and the mechanical arm starts to move upward; (d) when the gripper moves upward with the mechanical arm until its inner side contacts the outer side of the oil pipe, the gripper is closed to make it grip the oil pipe tightly; (e) the mechanical arm continues to move upward, and when the upper end of the mechanical arm contacts the second side of the toggle notch, the mechanical arm pushes the connecting piece to move clockwise around the pin shaft to make the connecting piece return to the initial state; (f) repeat the above steps (b) to (e) until the oil pipe is accessed, that is, the oil pipe access process is realized.

[0005] However, this placement device can only place a single layer of oil pipes on the pipe bridge, so the bearing capacity of the pipe bridge is small. Summary of the Invention

[0006] The technical problem to be solved by the present utility model is to provide an automatic oil pipe bridge that can improve the bearing capacity of the pipe bridge and can place multiple layers of oil pipes on the pipe bridge.

[0007] To achieve the above object, the technical solution provided by the present utility model is:

[0008] An automatic oil pipe bridge, comprising a plurality of frames arranged in parallel. A retaining rod is fixed at the rear end of the frame. Lifting components are provided at both the front and rear ends of the frame. The telescopic end of the lifting component is rotatably connected to the end of the frame on its side. A vertically arranged upper oil cylinder is fixed at the front end of the frame. An upper block is fixed at the upper end of the upper oil cylinder. A turntable is rotatably connected to any one side of the left and right sides of the upper block. A groove is provided at the rear side of the turntable. A dial rod is eccentrically fixed on the turntable. A limit pin is eccentrically fixed on the turntable. The limit pin and the dial rod are arranged left and right out of alignment. A long slot is provided on the turntable. The upper end of the long slot is inclined forward. A sliding rod is slidably clamped in the long slot. The sliding rod is located inside the lower end of the long slot. A slider is rotatably connected to the sliding rod. A connecting rod is fixed at the lower end of the slider. A counterweight block is fixed at the lower end of the connecting rod. When the groove faces upward, the limit pin is blocked by the upper block, and at the same time, the sliding rod moves to the upper end of the long slot.

[0009] Specifically, a bottom plate is fixed at the lower end of the lifting component.

[0010] Specifically, the axis of the dial rod is parallel to the axis of the turntable.

[0011] Specifically, the turntable is rotatably arranged on the left side of the upper block.

[0012] Specifically, the plurality of frames are located above the oil receiving box, and the lower ends of the lifting components are fixed inside the oil receiving box.

[0013] Specifically, a blocking device is fixedly arranged on the front side of the frame. The blocking device is a vertically arranged hydraulic cylinder, and the cylinder body of the hydraulic cylinder is fixed on the front side of the frame.

[0014] Specifically, the lifting component is a hand-operated lead screw.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. During the process of lifting the oil pipe, the upper oil cylinder can drive the turntable to move up and down. Therefore, multiple layers of oil pipes can be placed on the plurality of frames through the upper oil cylinder and the turntable, and thus the bearing capacity of this pipe bridge can be improved.

[0017] 2. When lowering the tubing, the upper oil cylinder can drive the turntable to move up and down. Therefore, multiple layers of tubing placed on multiple frames can be unloaded sequentially through the upper oil cylinder and the turntable.

[0018] 3. This tubing bridge is located inside the oil receiving box, and the oil stains dropped from the tubing can be collected by the oil receiving box, which can avoid the oil stains from falling to the ground and meet the environmental protection requirements.

[0019] 4. The frame can be tilted. When lifting the tubing, the tubing can be automatically placed on the frame. When lowering the tubing, the tubing on the frame can roll into the groove of the turntable in sequence, which is convenient for the loading and unloading of the tubing. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the present utility model.

[0021] Figure 2 is Figure 1 an enlarged view of area A in

[0022] Figure 3 It is a side view of the cooperation between the hydraulic cylinder and the frame.

[0023] The names of the components in the drawings are: 1. Frame, 2. Lifting assembly, 3. Upper oil cylinder, 4. Upper block, 5. Turntable, 6. Long groove, 7. Slide block, 8. Counterweight, 9. Limit pin, 10. Pusher rod, 11. Groove, 12. Stop rod, 13. Connecting rod, 14. Hydraulic cylinder. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1: Referring to Figures 1 - 3 as shown, the automatic tubing bridge includes multiple frames 1, the multiple frames 1 are arranged in parallel, and a stop rod 12 is fixed at the rear end of the frame 1.

[0026] Lifting assemblies 2 are arranged at both the front and rear ends of the frame 1, and the telescopic end of the lifting assembly 2 is rotatably connected to the end of the frame 1 on its one side. Specifically, the lifting assembly 2 is a hand-operated lead screw.

[0027] A vertically arranged upper oil cylinder 3 is fixed at the front end of the frame 1, an upper block 4 is fixed at the upper end of the upper oil cylinder 3, and a turntable 5 is rotatably connected to any one side of the left and right sides of the upper block 4. In this embodiment, the turntable 5 is rotatably arranged on the left side of the upper block 4. A groove 11 is formed at the rear side of the turntable 5. A pusher rod 10 is eccentrically fixed on the turntable 5, and the axis of the pusher rod 10 is parallel to the axis of the turntable 5. A limit pin 9 is eccentrically fixed on the turntable 5, and the limit pin 9 and the pusher rod 10 are arranged offset left and right.

[0028] A long groove 6 is formed in the turntable 5. The upper end of the long groove 6 inclines forward. A sliding rod is slidably clamped in the long groove 6. The sliding rod is located inside the lower end of the long groove 6. A slider 7 is rotatably connected to the sliding rod. A connecting rod 13 is fixed to the lower end of the slider 7. A counterweight 8 is fixed to the lower end of the connecting rod 13. When the groove 11 faces upward, the limit pin 9 is blocked by the upper block 4, and at the same time, the sliding rod moves to the upper end inside the long groove 6.

[0029] A blocking device is fixedly arranged on the front side of the frame body 1. The blocking device is a vertically arranged hydraulic cylinder 14. The cylinder body of the hydraulic cylinder 14 is fixed on the front side of the frame body 1.

[0030] On the tubing string, start the lifting assembly 2 at the rear end of the frame body 1, so that the lifting assembly 2 at the rear end of the frame body 1 retracts, and the rear end of the frame body 1 inclines downward.

[0031] At this time, the sliding rod is located inside the upper end of the long groove 6, the groove 11 faces upward, and the limit pin 9 contacts the upper block 4 to stop the rotation of the turntable 5. When the tubing enters the groove 11, the catwalk swing arm drives the turntable 5 to rotate counterclockwise through the lever 10, and the groove 11 rotates backward. When the sliding rod passes the midpoint position of the long groove 6, under the action of the gravity of the counterweight 8 and the gravity of the tubing, the turntable 5 automatically rotates counterclockwise. After the tubing rolls out of the groove 11, it rolls backward on the upper end of the frame body 1, and the tubing on the frame body 1 is blocked by the stop rod 12. At this time, the telescopic rod of the hydraulic cylinder 14 retracts, and the telescopic rod of the hydraulic cylinder 14 does not block the tubing rolling on the frame body 1.

[0032] Then the catwalk swing arm makes the turntable 5 rotate clockwise through the lever 10. When the sliding rod passes the midpoint position of the long groove 6, under the action of the gravity of the counterweight 8, the turntable 5 automatically rotates clockwise. When the groove 11 faces upward, the limit pin 9 contacts the upper block 4, and then the tubing enters the groove 11 again. Then the catwalk swing arm drives the turntable 5 to rotate counterclockwise through the lever 10 and transfers the tubing to the frame body 1.

[0033] After the first layer of tubing is laid on the frame body 1, a plurality of longitudinal tubing are placed on the upper end of the first layer of tubing. Then start the upper oil cylinder 3. The upper oil cylinder 3 drives the turntable 5 to move upward, and then the second layer of tubing can be laid on the plurality of longitudinally placed tubing through the turntable 5.

[0034] When lowering the tubing, first unload the topmost layer of tubing. Start the hydraulic cylinder 14, and the telescopic rod of the hydraulic cylinder 14 blocks the multiple layers of tubing below the topmost layer. Then start the lifting assembly 2 at the front end of the frame body 1, so that the lifting assembly 2 at the front end of the frame body 1 retracts, and the front end of the frame body 1 inclines downward. At this time, the groove 11 faces backward, and the tubing on the frame body 1 close to the turntable 5 rolls into the groove 11.

[0035] The catwalk swing arm drives the turntable 5 to rotate clockwise through the lever 10. The turntable 5 drives the oil pipe in its groove 11 to rotate clockwise. When the limit pin 9 contacts the upper block 4, the turntable 5 stops moving, and then the oil pipe in the groove 11 can be taken out through the catwalk swing arm.

[0036] After the oil pipe in the groove 11 is taken out, the catwalk swing arm drives the turntable 5 to rotate counterclockwise to restore, and then continues to make the oil pipe enter the groove 11. Then, through the rotation of the turntable 5 and using the catwalk swing arm, the oil pipes entering the groove 11 are taken out in turn.

[0037] When unloading the second-layer oil pipes, start the upper oil cylinder 3 to make the groove 11 of the turntable 5 correspond to the second-layer oil pipes. Adjust the elongation length of the hydraulic rod so that the telescopic rod of the hydraulic cylinder 14 loses the blocking effect on the second-layer oil pipes, and then unload the second-layer oil pipes in turn.

[0038] During the process of lifting the oil pipes, the upper oil cylinder 3 can drive the turntable 5 to move up and down. Therefore, multiple layers of oil pipes can be placed on multiple frames 1 through the upper oil cylinder 3 and the turntable 5, and thus the load-bearing capacity of the pipe bridge can be improved.

[0039] When lowering the oil pipes, the upper oil cylinder 3 can drive the turntable 5 to move up and down. Therefore, the multiple layers of oil pipes placed on multiple frames 1 can be unloaded in turn through the upper oil cylinder 3 and the turntable 5.

[0040] Embodiment 2: On the basis of Embodiment 1, a bottom plate is fixed to the lower end of the lifting assembly 2. The multiple frames 1 are located above the oil receiving box, and the lower end of the lifting assembly 2 is fixed in the oil receiving box.

[0041] The oil stains falling on the oil pipes can be collected by the oil receiving box, which can prevent the oil stains from falling to the ground and meet the environmental protection requirements.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Automatic tubing bridge, comprising a plurality of frames (1), the plurality of frames (1) are arranged in parallel, a stop bar (12) is fixed to the rear end of the frame (1), lifting assemblies (2) are arranged at both the front and rear ends of the frame (1), and the telescopic end of the lifting assembly (2) is rotatably connected to the end of the frame (1) on one side thereof, characterized in that, A vertical upper oil cylinder (3) is fixed to the front end of the frame body (1). An upper block (4) is fixed to the upper end of the upper oil cylinder (3). A turntable (5) is rotatably connected to any one of the left and right sides of the upper block (4). A groove (11) is formed in the rear side of the turntable (5). A dial rod (10) is eccentrically fixed to the turntable (5). A limit pin (9) is eccentrically fixed to the turntable (5). The limit pin (9) and the dial rod (10) are arranged in a left-right offset manner. A long slot (6) is formed in the turntable (5). The upper end of the long slot (6) inclines forward. A slide rod is slidably clamped in the long slot (6). The slide rod is located inside the lower end of the long slot (6). A slider (7) is rotatably connected to the slide rod. A connecting rod (13) is fixed to the lower end of the slider (7). A counterweight (8) is fixed to the lower end of the connecting rod (13). When the groove (11) faces upward, the limit pin (9) is blocked by the upper block (4), and at the same time, the slide rod moves to the upper end inside the long slot (6).

2. The automatic tubing bridge according to claim 1, characterized in that, A bottom plate is fixed to the lower end of the lifting assembly (2).

3. The automatic tubing bridge according to claim 1, wherein The axis of the dial rod (10) is parallel to the axis of the turntable (5).

4. The automatic tubing bridge according to claim 1, wherein The turntable (5) is rotatably arranged on the left side of the upper block (4).

5. The automatic tubing bridge according to claim 1, wherein The multiple frame bodies (1) are located above the oil receiving box, and the lower end of the lifting assembly (2) is fixed inside the oil receiving box.

6. The automatic tubing bridge according to claim 1, characterized in that, A blocking device is fixedly arranged on the front side of the frame body (1). The blocking device is a vertically arranged hydraulic cylinder (14), and the cylinder body of the hydraulic cylinder (14) is fixed to the front side of the frame body (1).

7. The automatic tubing bridge according to claim 1, characterized in that, The lifting assembly (2) is a hand-operated lead screw.

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