A sucker rod assembling auxiliary device for offshore oilfield

Abstract

The utility model provides a kind of for offshore oilfield sucker rod assembly auxiliary device, belong to petroleum exploitation device technical field, including assembly shell, push mechanism and control mechanism are provided on the assembly shell;The push mechanism includes first oil cylinder and side plate, the side plate is installed in the left side of assembly shell, the cylinder barrel of first oil cylinder is fixedly installed on side plate, simultaneously, the telescopic rod of first oil cylinder passes through side plate, then set in assembly shell;The control structure is installed in the lower surface of assembly shell.The utility model can be positioned to circular sucker rod by the limiting strip being set, ensure that circular sucker rod can be stably assembled together, improve the automatic assembly effect of equipment.

Description

Technical Field

[0001] This utility model relates to the field of oil extraction equipment technology, and in particular to an auxiliary device for assembling sucker rods in offshore oil fields. Background Technology

[0002] Currently, when connecting sucker rods to existing offshore platforms, workers are required to straighten and align them during the assembly process. Because sucker rods are relatively thin (around 25mm) and 7-8m long, the two sucker rods are prone to swaying during connection, making the positioning and connection process time-consuming and labor-intensive, and easily causing damage to the threads, thus affecting the efficiency of further operations. Utility Model Content

[0003] In view of this, the present invention aims to provide an auxiliary device for assembling sucker rods in offshore oil fields, which can position circular sucker rods and stably assemble them together without manual straightening or alignment during the sucker rod assembly process.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: an auxiliary device for assembling sucker rods in offshore oil fields includes an assembly housing, on which a pushing mechanism and a control mechanism are provided; the pushing mechanism includes a first hydraulic cylinder and a side plate, the side plate is installed on the left side of the assembly housing, the cylinder barrel of the first hydraulic cylinder is fixedly installed on the side plate, and the telescopic rod of the first hydraulic cylinder passes through the side plate and is then placed inside the assembly housing; symmetrically arranged limiting strips are fixedly installed on the inner side wall of the assembly housing; the control mechanism is installed on the lower surface of the assembly housing.

[0005] Furthermore, the limiting strip is located near the top of the inner wall of the assembly housing; the limiting strip has a raised structure, and the two limiting strips facing each other have a planar structure that is parallel to each other.

[0006] Furthermore, the control mechanism includes a base plate, which is fixedly installed on the lower surface of the assembly housing. A preset telescopic groove is provided on the upper surface of the base plate, and a through circular hole is provided in the preset telescopic groove. A U-shaped bracket is fixedly installed on the side wall of the base plate, and a second hydraulic cylinder is horizontally installed on the U-shaped bracket. A circular plate is fixedly installed on the telescopic rod of the second hydraulic cylinder, and the circular plate is movably engaged in the preset telescopic groove.

[0007] Furthermore, a circular sucker rod is movably installed inside the assembly housing. The lower surface of the circular sucker rod contacts the upper surface of the base plate. A first engaging member and a second engaging member are fixedly installed on the upper surface of the circular sucker rod. The first engaging member and the second engaging member are movably engaged between two limiting strips. When the circular sucker rod is subjected to external force, the circular sucker rod can slide on the upper surface of the base plate.

[0008] Furthermore, the lower surface of the circular sucker rod is provided with a locking groove. When two circular sucker rods are stacked and assembled, the first and second locking parts of the lower circular sucker rod can be locked into the locking groove of the upper circular sucker rod.

[0009] Furthermore, a U-shaped limiting plate is fixedly installed on the side wall of the assembly housing, which can limit the circular sucker rod.

[0010] Compared with existing technologies, the sucker rod assembly auxiliary device for offshore oil fields described in this utility model has the following advantages:

[0011] (1) The device described in this utility model can effectively position the round sucker rod by setting the limiting strip. With the U-shaped limiting plate, the round sucker rod can be stably assembled without manual straightening and alignment, which improves the automatic assembly effect of the round sucker rod.

[0012] (2) The device described in this utility model can provide stable support to the circular sucker rod when it is set above the circular hole by controlling the movement of the circular plate. When it retracts so that the circular hole is fully exposed, it can ensure that the circular sucker rod is smoothly lowered, thus ensuring the controllability of the movement of the circular sucker rod. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of an auxiliary device for assembling sucker rods in offshore oil fields, as described in an embodiment of this utility model.

[0015] Figure 2 A schematic diagram showing the assembly of a circular sucker rod, a first hydraulic cylinder, and a base plate.

[0016] Figure 3 A schematic diagram illustrating the assembly of the housing and the circular sucker rod.

[0017] Figure 4 A schematic diagram showing the installation of the U-shaped bracket, the second hydraulic cylinder, and the circular plate.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Assembly housing; 11. Circular sucker rod; 12. First locking component; 13. Second locking component; 14. Locking groove; 15. First hydraulic cylinder; 16. Side plate; 17. Limiting strip; 21. U-shaped limiting plate; 22. Base plate; 23. Pre-set telescopic groove; 24. Circular hole; 25. U-shaped bracket; 26. Second hydraulic cylinder; 27. Circular plate. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1-4As shown, this utility model is an auxiliary device for assembling sucker rods in offshore oil fields, including an assembly housing 1. The assembly housing 1 is equipped with a pushing mechanism and a control mechanism. The pushing mechanism includes a first hydraulic cylinder 15 and a side plate 16. The side plate 16 is installed on the left side of the assembly housing 1. The cylinder barrel of the first hydraulic cylinder 15 is fixedly installed on the side plate 16. At the same time, the telescopic rod of the first hydraulic cylinder 15 passes through the side plate 16 and is then placed inside the assembly housing 1. Symmetrically arranged limiting strips 17 are fixedly installed on the inner side wall of the assembly housing 1. A circular sucker rod 11 is movably installed inside the assembly housing 1. The lower surface of the circular sucker rod 11 contacts the upper surface of the base plate 22. As the telescopic rod of the first hydraulic cylinder 15 extends continuously, the top end of the telescopic rod of the first hydraulic cylinder 15 contacts the side wall of the circular sucker rod 11. At the same time, as the telescopic rod of the first hydraulic cylinder 15 continues to extend, the telescopic rod can continuously push the circular sucker rod 11 to slide on the upper surface of the base plate 22. The upper surface of the circular sucker rod 11 is fixedly equipped with a first engaging member 12 and a second engaging member 13. The positions where the first engaging member 12 and the second engaging member 13 contact the limiting strip 17 are respectively provided with tangential structures. When the circular sucker rod 11 is placed inside the assembly housing 1, the first engaging member 12 and the second engaging member 13 are movably engaged between the two limiting strips 17. Specifically, the limiting strips 17 are located near the top of the inner wall of the assembly housing 1. The limiting strips 17 are protruding structures, and the opposite sides of the two limiting strips 17 are parallel planar structures. When the circular sucker rod 11 is placed inside the assembly housing 1, the tangential structures on both sides of the first engaging member 12 and the tangential structures on both sides of the second engaging member 13 respectively cooperate with the planar structures of the two limiting strips 17, thereby limiting the circular sucker rod 11 and ensuring that the circular sucker rod 11 does not rotate axially during movement, thus ensuring accurate positioning of the circular sucker rod 11 and facilitating subsequent assembly. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0023] The control structure is installed on the lower surface of the assembly housing 1. The control mechanism includes a base plate 22, which is fixedly installed on the lower surface of the assembly housing 1. A preset telescopic groove 23 is provided on the upper surface of the base plate 22, and a through circular hole 24 is provided in the preset telescopic groove 23. A U-shaped bracket 25 is fixedly installed on the side wall of the base plate 22, and a second hydraulic cylinder 26 is horizontally installed on the U-shaped bracket 25. A circular plate 27 is fixedly installed on the telescopic rod of the second hydraulic cylinder 26, and the circular plate 27 is movably engaged in the preset telescopic groove 23. When the telescopic rod of the second cylinder 26 extends, it can drive the circular plate 27 to move forward, so that the circular plate 27 covers the circular hole 24 and blocks the circular hole 24; when the telescopic rod of the second cylinder 26 retracts, it can drive the circular plate 27 to move backward, so that the circular plate 27 moves away from the circular hole 24, exposing the circular hole 24, which facilitates the subsequent movement of the circular sucker rod 11 downward along the circular hole 24, thereby realizing the placement of the circular sucker rod 11 and ensuring that the circular sucker rod 11 can be used for oil extraction.

[0024] The lower surface of the circular sucker rod 11 is provided with a locking groove 14. When two circular sucker rods 11 are stacked and assembled, the first locking part 12 and the second locking part 13 of the lower circular sucker rod 11 can be locked in the locking groove 14 of the upper circular sucker rod 11, so that the connected circular sucker rods 11 form a completely sealed pipe.

[0025] A U-shaped limiting plate 21 is fixedly installed on the side wall of the assembly housing 1. The U-shaped limiting plate 21 can limit the circular sucker rod 11, ensuring that when the circular sucker rod 11 is pushed out, it is positioned exactly on the circular plate 27. Specifically, the U-shaped limiting plate 21 is located on the right side of the assembly housing 1, and the distance between the right side wall of the U-shaped limiting plate 21 and the right side wall of the assembly housing 1 is just enough to place a circular sucker rod 11. When the circular sucker rod 11 moves into the U-shaped limiting plate 21, the lower end of the circular sucker rod 11 is placed exactly on the circular plate 27.

[0026] In actual operation, when the circular sucker rod 11 needs to be assembled, the first cylinder 15 is activated, causing its telescopic rod to extend. The telescopic rod continuously pushes the circular sucker rod 11 to slide on the upper surface of the base plate 22. During the sliding of the circular sucker rod 11, the limiting strip 17 provided on the assembly housing 1 can engage with the first engaging member 12 and the second engaging member 13 on both sides, thereby limiting the movement of the circular sucker rod 11 and ensuring that it does not rotate when it moves. This ensures that the circular sucker rod 11 can be accurately positioned, facilitating subsequent assembly. When the circular sucker rod 11 reaches the circular plate 27, the lifting mechanism above the device described in this utility model will connect to and drive the circular sucker rod 11 to move upward. The lifting mechanism is existing technology and is equipped with a sucker rod hanger, which can realize the rotation, lifting, and lowering operations of the circular sucker rod 11. The sucker rod hanger is existing technology. After the circular sucker rod 11 is completely removed from the U-shaped limiting plate 21, the continuing circular sucker rod 11 will return to the position of the circular plate 27. At this time, the lowering lifting mechanism is lowered, which drives the circular sucker rod 11 to move downward. During the downward movement of the upper circular sucker rod 11, the first engaging member 12 and the second engaging member 13 of the lower circular sucker rod 11 will engage in the engaging groove 14 of the upper circular sucker rod 11, so that the connected circular sucker rod 11 forms a completely sealed pipe. After the upper and lower circular sucker rods 11 are connected, the lifting mechanism begins to lift upward and drive the connected circular sucker rod 11 upward until the lower circular sucker rod... The circular sucker rod 11 is completely removed from the U-shaped limiting plate 21. Then, a new circular sucker rod 11 continues to move to the position of the circular plate 27. The lifting mechanism then lowers again, causing the connected circular sucker rod 11 to move downwards and connect with the lower circular sucker rod 11. Once the lower circular sucker rod 11 is connected to the upper circular sucker rod 11, the lifting mechanism begins to lift upwards, moving the connected circular sucker rod 11 upwards until the lower circular sucker rod 11 is completely removed from the U-shaped limiting plate 21. This process is repeated until the last section of the circular sucker rod 11 in the assembly housing 1 moves to the top of the circular plate 27 and completes the connection. The device described in this invention uses the limiting strip 17 to position the circular sucker rod 11, allowing for stable assembly without manual straightening or alignment. The mechanical movement replaces manual straightening and alignment, improving the automatic assembly effect of the device.

[0027] When the last section of the circular sucker rod 11 inside the assembly housing 1 moves to the top of the circular plate 27, the second cylinder 26 is activated, causing the telescopic rod of the second cylinder 26 to retract, so that the circular plate 27 moves within the preset telescopic groove 23. After the circular plate 27 leaves the top of the circular hole 24, the lifting mechanism drives the assembled circular sucker rod 11 to move downward from the circular hole 24, thereby realizing the lowering and placement of the circular sucker rod 11, allowing the circular sucker rod 11 to be used for oil extraction. The device described in this utility model, by controlling the movement of the circular plate 27, can provide stable support for the circular sucker rod 11 when it is set above the circular hole 24, and can ensure the smooth lowering of the circular sucker rod 11 when it retracts so that the circular hole 24 is fully exposed, thus ensuring the controllability of the movement of the circular sucker rod 11.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for assembling sucker rods in offshore oil fields, characterized in that: The assembly includes a housing (1), on which a pushing mechanism and a control mechanism are provided; the pushing mechanism includes a first hydraulic cylinder (15) and a side plate (16), the side plate (16) is installed on the left side of the assembly housing (1), the cylinder barrel of the first hydraulic cylinder (15) is fixedly installed on the side plate (16), and the telescopic rod of the first hydraulic cylinder (15) passes through the side plate (16) and is then set inside the assembly housing (1), and symmetrically arranged limiting strips (17) are fixedly installed on the inner side wall of the assembly housing (1); the control structure is installed on the lower surface of the assembly housing (1).

2. The auxiliary device for assembling sucker rods in offshore oil fields according to claim 1, characterized in that: The limiting strip (17) is located near the top of the inner wall of the assembly housing (1); the limiting strip (17) is a protruding structure, and the two limiting strips (17) are arranged on opposite sides as parallel planar structures.

3. The auxiliary device for assembling sucker rods in offshore oil fields according to claim 2, characterized in that: The control mechanism includes a base plate (22), which is fixedly installed on the lower surface of the assembly housing (1). A preset telescopic groove (23) is provided on the upper surface of the base plate (22), and a through circular hole (24) is provided in the preset telescopic groove (23). A U-shaped bracket (25) is fixedly installed on the side wall of the base plate (22), and a second hydraulic cylinder (26) is horizontally installed on the U-shaped bracket (25). A circular plate (27) is fixedly installed on the telescopic rod of the second hydraulic cylinder (26), and the circular plate (27) is movably engaged in the preset telescopic groove (23).

4. The auxiliary device for assembling sucker rods in offshore oil fields according to claim 3, characterized in that: A circular sucker rod (11) is movably installed inside the assembly housing (1). The lower surface of the circular sucker rod (11) is in contact with the upper surface of the base plate (22). A first locking member (12) and a second locking member (13) are fixedly installed on the upper surface of the circular sucker rod (11). The first locking member (12) and the second locking member (13) are movably locked between two limiting strips (17). When the circular sucker rod (11) is subjected to external force, the circular sucker rod (11) can slide on the upper surface of the base plate (22).

5. The auxiliary device for assembling sucker rods in offshore oil fields according to claim 4, characterized in that: The lower surface of the circular sucker rod (11) is provided with a locking groove (14). When two circular sucker rods (11) are stacked and assembled, the first locking part (12) and the second locking part (13) of the lower circular sucker rod (11) can be locked in the locking groove (14) of the upper circular sucker rod (11).

6. The auxiliary device for assembling sucker rods in offshore oil fields according to claim 4, characterized in that: A U-shaped limiting plate (21) is fixedly installed on the side wall of the assembly housing (1), and the U-shaped limiting plate (21) can limit the circular sucker rod (11).

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