Multifunctional maintenance manipulator for blowout preventer

Abstract

The utility model discloses a multifunctional maintenance manipulator for a blowout preventer, relates to the technical field of maintenance of the blowout preventer, and aims to solve the problems of high labor intensity and low working efficiency when bolts are detached during maintenance of the blowout preventer. A torque wrench is installed at the output end of the power-assisted manipulator and used for disassembling a bolt on the blowout preventer body, and the output end of the torque wrench is detachably connected with a disassembling and assembling sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of blowout preventer maintenance, in particular to a multifunctional blowout preventer maintenance manipulator. Background Art

[0002] Blowout preventers are used to close the wellhead during oil testing, well repair, and well completion operations to prevent blowout accidents. They combine the functions of full sealing and semi-sealing into one, and have the characteristics of simple structure, easy operation, and high pressure resistance. They are commonly used safety sealing wellhead devices in oil fields to prevent blowouts.

[0003] There are two ways to disassemble and assemble bolts for BOP maintenance in existing drilling and well control workshops. One is to manually use a sledgehammer and a percussion wrench to complete the disassembly and assembly, and the other is to manually use a pneumatic wrench or a hydraulic wrench to complete the disassembly and assembly.

[0004] The first method of disassembling and assembling the bolts on the blowout preventer using a sledgehammer and a percussion wrench is undoubtedly very inefficient, and each blowout preventer has at least 48 heavy bolts, with bolt specifications ranging from M20 to M110, and the required torque is more than 30,000 N·M, which results in very high labor intensity and a large safety hazard during the hammering process. The second method of disassembling and assembling using a pneumatic wrench or a hydraulic wrench can improve efficiency compared to the first method, but since pneumatic wrenches or hydraulic wrenches need to be installed with pneumatic or hydraulic devices, they are heavy, especially for bolts above M60, pneumatic wrenches, hydraulic wrenches and extension sleeves are all heavy, weighing about 50 kilograms or more, and often require two people to carry them to work, which means that when using pneumatic wrenches or hydraulic wrenches to disassemble large bolts on the blowout preventer, the labor intensity is also relatively high, the work efficiency is low, and the operability is not strong. Utility Model Content

[0005] In order to solve the above problem, that is, the problem of high labor intensity and low work efficiency when repairing and disassembling bolts of a blowout preventer, the utility model proposes a multifunctional maintenance manipulator for a blowout preventer, which includes a base, a power-assisting manipulator is installed on the base, a torque wrench is installed at the output end of the power-assisting manipulator, the torque wrench is used to disassemble the bolts on the blowout preventer body, and the output end of the torque wrench is detachably connected with a disassembly sleeve.

[0006] By adopting the above technical solution, the power-assisted manipulator can achieve the purpose of lifting the torque wrench, and then by controlling the power-assisted manipulator, the purpose of controlling the torque wrench to dismantle the bolts on the blowout preventer body can be achieved, eliminating the need for manual lifting of the torque wrench, greatly reducing labor intensity and improving work efficiency.

[0007] The utility model is further configured as follows: the output end of the power-assisting manipulator is rotatably connected to a rotary joint, and one end of the rotary joint away from the power-assisting manipulator is connected to the torque wrench to change the angle of the torque wrench.

[0008] By adopting the above technical solution, the rotary joint can drive the torque wrench to rotate a certain angle, so that the torque wrench can be rotated to different working postures to meet the disassembly function of bolts at different angles.

[0009] The utility model is further configured as follows: a slide rail is provided on the base, and the power-assisting manipulator is slidably connected to the slide rail.

[0010] By adopting the above technical solution, the sliding of the assisting manipulator can drive the torque wrench to slide accordingly, and then the sliding of the torque wrench can meet the purpose of disassembling the bolts of the blowout preventer bodies of different models and different positions.

[0011] The utility model is further configured as follows: a torque sensor is installed on the torque wrench, an output end of the torque sensor is electrically connected to a control system, and an output end of the control system is electrically connected to a display.

[0012] By adopting the above technical solution, the torque sensor can detect the torque generated by the torque wrench when it is working, and transmit the detected torque signal to the control system. The control system outputs a control signal to the display based on the torque signal to achieve the purpose of displaying the torque of the torque wrench on the display.

[0013] The beneficial effects of the utility model are:

[0014] By setting up a power-assisting manipulator, the purpose of lifting the torque wrench to remove the bolts on the blowout preventer body can be achieved, which greatly saves labor intensity and improves work efficiency. By slidingly connecting the power-assisting manipulator with the base and setting a rotating joint, the flexibility of the device can be made stronger, that is, the different working postures of the torque wrench can be changed, thereby meeting the purpose of removing the bolts of the blowout preventer body at different angles, different models and different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is shown in the structural diagram.

[0016] Figure 2 A local enlarged view of point A is shown.

[0017] Figure 3 A torque display flow chart is shown.

[0018] Figure numerals: 1. base; 11. slide rail; 2. power manipulator; 3. torque wrench; 31. disassembly and assembly sleeve; 4. rotary joint; 5. blowout preventer body; 6. torque sensor; 7. control system; 8. display. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0020] The utility model proposes a multifunctional maintenance manipulator for a blowout preventer, comprising a base 1, on which a blowout preventer body 5 is placed, and a slide rail 11 is also integrally arranged on the base 1, on which two power-assisting manipulators 2 are slidably connected, and the power-assisting manipulators 2 are selected to be hard-arm balanced manipulators. It should be noted that the slide rail 11 is not limited to being installed with two power-assisting manipulators 2, and this application only takes the installation of two power-assisting manipulators 2 as an example.

[0021] The output end of the power-assisting manipulator 2 is rotatably connected to a rotary joint 4, and the end of the rotary joint 4 away from the power-assisting manipulator 2 is fixedly connected to a torque wrench 3. The rotary joint 4 is tilted at 45 degrees. When the rotary joint 4 rotates, it can drive the torque wrench 3 to rotate accordingly, that is, it can drive the torque wrench 3 to rotate to a horizontal state, and it can also drive the torque wrench 3 to rotate to a vertical state. Further, the device can achieve the purpose of disassembling the side door bolts and hydraulic cylinder bolts of the horizontally placed blowout preventer body 5, and can also achieve the purpose of disassembling the bolts of the annular blowout preventer body 5.

[0022] It should be noted that the rotary joint 4 can be manually driven, electrically driven, or hydraulically driven. The drawings of the present application only use manual drive as an example, that is, the rotary joint 4 is driven to rotate by a handwheel.

[0023] The output end of the torque wrench 3 is detachably connected with a disassembly sleeve 31 , which is used to disassemble bolts. By replacing the disassembly sleeve 31 of different sizes, the purpose of disassembling bolts of different types on the blowout preventer body 5 can be achieved.

[0024] The torque wrench 3 is also equipped with a torque sensor 6, the output end of which is electrically connected to a control system 7, the control system 7 uses a PLC programming controller, and the output end of the control system 7 is electrically connected to a display 8. The torque sensor 6 is used to detect the torque on the torque wrench 3, and then transmit the detected torque signal to the control system 7, and the control system 7 outputs a control signal to the display 8 based on the torque signal, thereby achieving the purpose of displaying the torque on the display 8.

[0025] In summary, the utility model can achieve the purpose of lifting the torque wrench 3 to remove the bolts on the blowout preventer body 5 by providing the power-assisting manipulator 2, which greatly saves labor intensity and improves work efficiency. By slidingly connecting the power-assisting manipulator 2 with the base 1 and providing the rotating joint 4, the flexibility of the device can be made stronger, that is, it can achieve the different working postures of the torque wrench 3, thereby meeting the purpose of removing the bolts of the blowout preventer body 5 of different angles, different models and different positions.

[0026] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0030] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A multifunctional maintenance manipulator for a blowout preventer, comprising a base (1), on which a power-assisting manipulator (2) is mounted, characterized in that: The output end of the power-assisting manipulator (2) is equipped with a torque wrench (3), which is used to remove bolts on the blowout preventer body (5). The output end of the torque wrench (3) is detachably connected to a disassembly sleeve (31).

2. The multifunctional maintenance manipulator for blowout preventer according to claim 1 is characterized in that: The output end of the power-assisting manipulator (2) is rotatably connected to a rotary joint (4), and one end of the rotary joint (4) facing away from the power-assisting manipulator (2) is connected to the torque wrench (3) for changing the angle of the torque wrench (3).

3. The multifunctional maintenance manipulator for blowout preventer according to claim 1 is characterized in that: A slide rail (11) is provided on the base (1), and the assisting manipulator (2) is slidably connected to the slide rail (11).

4. The multifunctional maintenance manipulator for blowout preventer according to claim 1 is characterized in that: The torque wrench (3) is mounted with a torque sensor (6), the output end of the torque sensor (6) is electrically connected to a control system (7), and the output end of the control system (7) is electrically connected to a display (8).

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