Annular blowout preventer maintenance platform

Abstract

The utility model discloses an annular blowout preventer maintenance platform, relates to the technical field of maintenance platforms, and aims to solve the problems that the labor intensity of workers is high and potential safety hazards exist in the current blowout preventer maintenance process. A portal frame, a mechanical arm, an objective table and a positioning groove are arranged on the platform foundation; the portal frame is arranged on the platform foundation in a walking manner; the objective table is arranged below the portal frame and is used for placing a top cover of the blowout preventer; the portal frame is provided with a grabbing device used for grabbing the top cover. A power wrench is arranged at the movable end of the mechanical arm; and the positioning groove is used for positioning and placing the blowout preventer.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance platforms, in particular to an annular blowout preventer maintenance platform. Background Art

[0002] The main body of an oil well blowout preventer is extremely heavy, with its major components weighing tens of tons or more. Coupled with mud jamming and severe corrosion, the overhaul process is extremely laborious and arduous, requiring the use of equipment such as sledgehammers, crowbars, and heavy pneumatic wrenches, as well as high-altitude work and the coordination of manual labor with forklifts. For example, opening and closing the hinged Sheffield-type blowout preventer's side door requires a crane to lift a 3-meter-long circular steel column, and multiple people to remove the door by striking a bell. This is extremely labor-intensive and poses significant safety risks. Utility Model Content

[0003] In order to solve the problems of high labor intensity and safety hazards for workers during the current blowout preventer inspection and maintenance process, the utility model proposes an annular blowout preventer maintenance platform, including a platform foundation, a gantry, a mechanical arm, a loading platform and a positioning slot arranged on the platform foundation; the gantry is arranged to move on the platform foundation; the loading platform is arranged below the gantry and is used to place the top cover of the blowout preventer; the gantry is provided with a grabbing device for grabbing the top cover; a power wrench is provided at the movable end of the mechanical arm; and the positioning slot is used to position and place the blowout preventer.

[0004] The utility model is further configured as follows: the gantry comprises two telescopic columns, a walking base is provided at the bottom of the telescopic columns; and a crossbeam is provided at the top of the two telescopic columns.

[0005] The utility model is further configured as follows: a rotating shaft and a motor are provided on the crossbeam; the motor is used to drive the rotating shaft to rotate, both ends of the rotating shaft are respectively matched with a first lead screw through a gear steering device, and the other end of the first lead screw is rotatably connected to a fixed section in the telescopic column.

[0006] The utility model is further configured as follows: the grasping device includes two connecting columns connected to the crossbeam, the bottom of the connecting column is connected to the support plate, and the support plate is slidably connected to the slider; a mechanical claw is installed at the bottom of the slider; the top of the slider is connected to a movable plate; the movable plate cooperates with the second lead screw; and the two ends of the second lead screw are rotatably connected to the two connecting columns.

[0007] The beneficial effects of this utility model are: the entire process is completely carried out by the equipment, the labor intensity of workers is greatly reduced, and safety hazards are eliminated. The gantry is modified to be liftable, which is more suitable for transporting objects with large total weights than liftable mechanical claws. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the present utility model.

[0009] Figure 2 yes Figure 1 A partial enlarged view of .

[0010] Figure 3 It is a structural diagram of the working state of the utility model.

[0011] Figure 4 This utility model Figure 3 A partial enlarged view of the .

[0012] Figure numerals: 1. Platform foundation; 11. Loading platform; 12. Positioning slot; 2. Robotic arm; 3. Gantry; 31. Telescopic column; 32. Beam; 33. Motor; 34. Pulley; 35. Rotating shaft; 36. Gear steering gear; 37. First screw; 4. Grasping device; 41. Connecting column; 42. Support plate; 43. Slider; 44. Second screw; 45. Movable plate; 46. Handle; 47. Mechanical claw; 5. Blowout preventer; 6. Top cover; 7. Power wrench. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0014] See also Figure 1-Figure 4 The utility model provides an integrated drilling blowout preventer 5 maintenance platform, including a platform foundation 1. A gantry 3, a mechanical arm 2, a loading platform 11 and a positioning slot 12 are arranged on the platform foundation 1.

[0015] The positioning groove 12 is used to position and place the blowout preventer 5. The movable end of the mechanical arm 2 is provided with a power wrench 7 for disassembling the blowout preventer 5. The loading platform 11 is provided below the gantry 3 and is used to place the top cover 6 of the blowout preventer 5.

[0016] The gantry 3 is mounted on the platform foundation 1. The gantry 3 comprises two telescopic columns 31, each with a running base mounted at its base. The platform foundation 1 is equipped with slide rails compatible with the running base. A crossbeam 32 is mounted on top of the two telescopic columns 31. A motor 33 and a rotating shaft 35 are mounted on the crossbeam 32. The rotating shaft 35 is positioned parallel to and above the crossbeam 32 via a bearing block. The motor 33 is fixed to the crossbeam 32 and drives the rotating shaft 35. The motor 33 is connected to the rotating shaft 35 via a belt and pulley 34 (not shown). The pulley 34 is mounted on the rotating shaft 35 to mate with the belt. Gear steering gears 36 are mounted at each end of the crossbeam 32. These gear steering gears 36 are connected to the ends of the rotating shaft 35 and are also connected to a vertically mounted first lead screw 37. The other end of the first lead screw 37 is mated with a fixed section of the telescopic columns 31. When the motor 33 drives the rotating shaft 35 to rotate, the rotating shaft 35 drives the first screw 37 to rotate through the gear steering device 36. The first screw 37 and the fixed section of the telescopic column 31 move axially relative to each other, so the gear steering device 36, together with the crossbeam 32 and the movable section of the telescopic column 31, achieve a lifting effect.

[0017] The gantry 3 is equipped with a gripping device 4 for grasping the top cover 6 of the blowout preventer 5. The gripping device 4 comprises two connecting columns 41 connected to the crossbeam 32. The bottoms of the connecting columns 41 are connected to a support plate 42, which is slidably connected to a slider 43. A mechanical claw 47 is mounted on the bottom of the slider 43. The top of the slider 43 is connected to a movable plate 45, which engages a horizontally arranged second lead screw 44. The ends of the second lead screw 44 are rotatably connected to the two connecting columns 41. One end of the second lead screw 44 extends through the connecting columns 41 and is mounted with a handle 46. The rotation of the second lead screw 44 drives the movable plate 45 to move, which in turn drives the slider 43, thereby actuating the mechanical claw 47.

[0018] The specific implementation process is as follows: first, the blowout preventer 5 to be repaired is transported to the positioning slot 12, and then the bolts are removed using the power wrench 7 on the robotic arm 2. Then, the gantry 3 is moved and the height of the crossbeam 32 is adjusted. During the process, the position of the mechanical claw 47 can also be adjusted by the handle 46. Then, the mechanical claw 47 is made to grasp the top cover 6 of the blowout preventer 5. Then, the gantry 3 is moved and the height of the crossbeam 32 is adjusted again, and the top cover 6 is placed on the loading platform 11. After the repair work is completed, the top cover 6 is transported back along the original route and assembled. The entire process relies entirely on equipment to operate, which greatly reduces the labor intensity of workers and eliminates safety hazards. The gantry 3 has been modified to be liftable. Compared with the liftable mechanical claw 47, this modification is more suitable for the transportation of objects with a large total weight.

[0019] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0020] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0023] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An annular blowout preventer maintenance platform, characterized by: It includes a platform foundation, on which a gantry, a mechanical arm, a loading platform and a positioning slot are arranged; The gantry is arranged on the platform foundation; the loading platform is arranged below the gantry and is used to place the top cover of the blowout preventer; The gantry is provided with a grabbing device for grabbing the top cover; A power wrench is provided at the movable end of the mechanical arm; The positioning groove is used to position and place the blowout preventer.

2. The annular blowout preventer maintenance platform according to claim 1, characterized in that: The gantry comprises two telescopic columns, a walking base is arranged at the bottom of the telescopic columns, and a crossbeam is arranged at the top of the two telescopic columns.

3. The annular blowout preventer maintenance platform according to claim 2, characterized in that: A rotating shaft and a motor are provided on the crossbeam; the motor is used to drive the rotating shaft to rotate, and both ends of the rotating shaft cooperate with the first screw through a gear steering device, and the other end of the first screw is rotatably connected to a fixed section in the telescopic column.

4. The annular blowout preventer maintenance platform according to claim 3, characterized in that: The grasping device includes two connecting columns connected to the crossbeam, the bottom of the connecting columns is connected to the support plate, and the support plate is slidably connected to the slider; a mechanical claw is installed at the bottom of the slider; the top of the slider is connected to a movable plate; the movable plate cooperates with the second lead screw; and the two ends of the second lead screw are rotatably connected to the two connecting columns.

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