Assembly platform and assembly method for drilling liner hanger

Abstract

The invention provides an assembling platform for a drilling liner hanger, which comprises a feeding module for placing parts of the drilling liner hanger, a conveying mechanism comprising a first guide rail and a plurality of clamping modules arranged on the first guide rail at intervals and used for fixing a body of the drilling liner hanger, the feeding module is arranged on the first guide rail, the carrying module is arranged between the feeding module and the first guide rail and used for transferring the parts, a press-fitting module is arranged on the first guide rail, and the parts are constructed to be capable of being in butt joint with the body under the action of the carrying module and pressed under the action of the press-fitting module.

Description

Technical Field

[0001] This invention relates to the field of cementing tool assembly technology, and more specifically to an assembly platform for a tailpipe hanger, and an assembly method. Background Technology

[0002] In the field of oil extraction equipment, the tailpipe hanger is an important cementing tool, mainly used to fix the tailpipe downhole to ensure the smooth progress of drilling operations. However, the assembly process of the tailpipe hanger is quite complex, especially the tailpipe hanger unit, which requires multiple steps to complete. This not only requires a large amount of human resources, but the assembly quality is also affected by the skills and experience of the workers. With the expansion of the downhole tool market both domestically and internationally, and the increasing proportion of complex oil and gas wells in high-pressure, high-sulfur, and high-risk areas, the requirements for downhole tool production efficiency and product quality are constantly increasing. Traditional manual assembly methods can no longer meet the growing order demand.

[0003] While existing mechanized assembly equipment has improved the assembly efficiency of tailpipe hangers to some extent, several problems remain. For example, most existing mechanized assembly equipment uses a fixed design, making it impossible to flexibly adjust to actual production needs, thus limiting its application. Furthermore, manual intervention and monitoring are still required during the actual assembly process, increasing labor intensity and failing to completely eliminate the impact of human factors on assembly quality. Moreover, the assembly efficiency and quality of existing mechanized equipment still need improvement and cannot meet the demands of large-scale production.

[0004] Therefore, it is desirable in the art to provide an assembly platform for tailpipe hangers to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to propose an assembly platform for tailpipe hangers, which can achieve fully mechanized and automated operation. That is, it uses PLC control cabinet logic instructions to ensure that the modules can work together, thereby solving the problems of high labor intensity and low assembly efficiency in the prior art.

[0006] According to a first aspect of the present invention, an assembly platform for a tailpipe suspension is provided, comprising a loading module for placing components of the tailpipe suspension.

[0007] The conveying mechanism includes a first guide rail and a plurality of clamping modules spaced apart on the first guide rail for fixing the body of the tailpipe hanger.

[0008] A handling module is disposed between the feeding module and the first guide rail and is used to transfer the parts.

[0009] The first guide rail is equipped with a pressing module, and the component is configured to dock with the body under the action of the transport module and be pressed tightly under the action of the pressing module.

[0010] In one embodiment, the clamping module includes a base, a first screw disk rotatably connected to the base, and a first motor for driving the first screw disk to rotate.

[0011] In one embodiment, the pressing module includes a press and a pressing assembly disposed on the press, wherein the pressing assembly includes an adjusting plate slidably connected to the press, a gripper disposed on the adjusting plate for clamping the component, and a detection controller connected to the adjusting plate and the gripper.

[0012] The detection controller is configured to detect the relative position of the component and the body, and correct the position of the body by rotating the first screw disk according to the detection result.

[0013] In one embodiment, the adjustment plate is provided with at least four symmetrically arranged grippers, the grippers being configured in an L-shape and including a limiting part for abutting against the side wall of the component and a locking part for abutting against the top wall of the component.

[0014] In one embodiment, the press is provided with a drive component connected to the adjusting plate.

[0015] The adjusting plate can move downward under the action of the driving member to press the component and the body together, and the body can rotate under the driving action of the first screw to be fixedly connected with the component.

[0016] In one embodiment, the clamping module further includes a second screw disk disposed on the first screw disk, a gripper disposed on the second screw disk for clamping the body, and a second motor connected to the second screw disk for driving the gripper.

[0017] In one embodiment, the feeding module includes a support frame, second guide rails arranged side-by-side at both ends of the support frame, and a drive cylinder disposed between the two second guide rails.

[0018] The feeding module further includes multiple tray groups installed on the second guide rail and the drive cylinder, and each tray group is equipped with a signal controller.

[0019] In one embodiment, each of the tray groups consists of at least three trays for securing the components.

[0020] In one embodiment, the handling module includes a handling base, a handling gripper disposed on the handling base for clamping the component, and a third motor for driving the handling gripper.

[0021] In one embodiment, the assembly platform for the tailpipe hanger further includes a PLC control cabinet connected to the feeding module, the clamping module, the handling module, and the pressing module, respectively.

[0022] According to a second aspect of the present invention, an assembly method is provided, which uses an assembly platform as described above, comprising the following steps:

[0023] S1. Drive the gripper to clamp the body of the tailpipe suspension device by the second motor, and transfer the components of the tailpipe suspension device to dock with the body by the handling gripper.

[0024] S2. The relative position of the component and the body is detected by the detection controller, and the position of the body is corrected by rotating the first screw disk according to the detection result.

[0025] S3. The driving component causes the adjusting plate to press down so that the component is pressed against the body, and the first screw plate causes the body to rotate and be fixedly connected to the component.

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] This invention enables fully mechanized and automated operation. By using PLC control cabinet logic instructions to ensure collaborative work between modules, it solves the problems of high labor intensity and low assembly efficiency associated with manual operation in existing technologies. Furthermore, this device has a standardized process flow to ensure automated assembly of the product, thereby guaranteeing the assembly efficiency and quality of the tailpipe hanger body and its components. Attached Figure Description

[0028] The invention will now be described in detail with reference to the accompanying drawings, in which:

[0029] Figure 1 The schematic diagram illustrates the structure of an assembly platform for a tailpipe hanger according to the present invention;

[0030] Figure 2 for Figure 1 A partial view showing the structure of the feeding module;

[0031] Figure 3 for Figure 1 A partial view showing the structure of the transport module;

[0032] Figure 4 for Figure 1 A partial view showing the structure of the clamping module;

[0033] Figure 4a The internal structure of the clamping module is schematically shown;

[0034] Figure 5 for Figure 1 A partial view showing the structure of the press-fit module;

[0035] Figure 6 for Figure 5 A partial view showing the structure of the press-fit assembly;

[0036] Figure 7 for Figure 1 A partial view showing the structure of the first guide rail.

[0037] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0038] To make the technical solutions and advantages of the present invention clearer, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not an exhaustive list of all embodiments. Furthermore, without conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "first" and "second" 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0040] In this invention, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components.

[0041] Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] The invention will now be further described with reference to the accompanying drawings.

[0043] Figure 1 The schematic diagram shows the structure of the assembly platform for the tailpipe hanger according to the present invention.

[0044] like Figure 1 As shown, according to a first aspect of the present invention, an assembly platform 100 for a tailpipe hanger is provided, which mainly includes a loading module 10, a conveying mechanism, and a handling module 30. The loading module 10 is capable of placing components 101 of the tailpipe hanger; the conveying mechanism includes a first guide rail 21 and clamping modules 22 mounted on the first guide rail 21. Preferably, multiple clamping modules 22 are provided, spaced apart on the first guide rail 21, and capable of fixing the body 102 of the tailpipe hanger; the handling module 30 is disposed between the first guide rail 21 and the loading module 10, and is capable of clamping and transferring the components 101 to facilitate the docking of the components 101 with the body 102.

[0045] In one embodiment, such as Figure 1 As shown, the assembly platform 100 for the tailpipe hanger also includes a pressing module 40 mounted on the first guide rail 21. In this invention, the component 101 can be transferred and docked with the body 102 under the action of the transport module 30. Subsequently, the component 101 and the body 102 will complete the pressing operation under the action of the pressing module 40, the details of which are described below.

[0046] Figure 2 for Figure 1 A partial view showing the structure of the feeding module 10.

[0047] In one embodiment, such as Figure 2 As shown, the feeding module 10 includes a support frame 11, a second guide rail 12, and a drive cylinder 13. The support frame 11 consists of a table surface and at least three spaced-apart legs arranged under the table surface. The table surface and the legs are fixedly connected, and the legs are fixed to the ground by anchor bolts. There are two second guide rails 12, which are arranged side by side on both sides of the support frame 11. The drive cylinder 13 is located between the two second guide rails 12 and can drive the material tray assembly 14 (described below) to slide on the support frame 11.

[0048] In one embodiment, such as Figure 2 As shown, the feeding module 10 also includes multiple tray groups 14 mounted on the second guide rail 12 and the drive cylinder 13. Preferably, adjacent tray groups 14 are arranged in abutment, and each tray group 14 is provided with a signal controller 15. It is easy to understand that during use, commands can be sent to the signal controller 15, which can control the drive cylinder 13 to complete the pressing and depressurization work, further causing the tray group 14 to slide on the support frame 11 to ensure that the assembly work is carried out in an orderly manner.

[0049] Preferably, each tray group 14 consists of at least three trays, and each tray can hold a tailpipe hanger component 101. In this invention, the components 101 are all fixed longitudinally on the trays, which facilitates the handling module 30 in handling and docking operations.

[0050] Figure 4 for Figure 1 A partial view showing the structure of clamping module 22.

[0051] Figure 4a The internal structure of the clamping module 22 is shown schematically.

[0052] In one embodiment, such as Figures 4-4a As shown, the clamping module 22 includes a base 221, a first screw disk 222, and a first motor 223. Preferably, the base 221 is constructed in a ring shape, and the first screw disk 222 is concentrically arranged within the base 221, and the first screw disk 222 can be rotatably connected to the base 221; the first motor 223 is connected to the first screw disk 222, thereby driving the first screw disk 222 to rotate, further causing the gripper 225 (described below) and the body 102 of the tailpipe hanger to rotate together, which is conducive to completing the docking work between the component 101 and the body 102.

[0053] In one embodiment, the clamping module 22 further includes a second screw disk 224, a gripper 225, and a second motor 226. Preferably, there are three grippers 225 arranged at equal angles, which can clamp the body 102 of the tailpipe hanger to improve the stability of the device during docking. The second screw disk 224 is installed above the first screw disk 222, and the grippers 225 are disposed on the second screw disk 224. Therefore, the second screw disk 224 and the grippers 225 can rotate synchronously with the first screw disk 222 to facilitate the docking of the component 101 with the body 102. The second motor 226 can drive the second screw disk 224 to rotate to adjust the clamping and releasing actions of the grippers 225.

[0054] In this invention, the clamping module 22 consists of two working groups. The first working group includes a base 221, a first screw disk 222 and a first motor 223, which can control the entire clamping module 22 to rotate in an orderly manner. The second working group includes a second screw disk 224, a gripper 225 and a second motor 226, which can effectively clamp the body 102 of the tailpipe hanger.

[0055] Preferably, the clamping module 22 further includes a protective shell 227 that covers both the first screw disc 222 and the second screw disc 224. Preferably, the protective shell 227 is adapted to the base 221 to provide a stable working environment for the gripper 225, the first screw disc 222 and the second screw disc 224, thereby further improving the service life of the clamping module 22.

[0056] Figure 3 for Figure 1 A partial view showing the structure of the transport module 30.

[0057] In one embodiment, such as Figure 3 As shown, the transport module 30 includes a transport base 31, a transport gripper 32 mounted on the transport base 31, and a third motor 33 for driving the transport base 31. Preferably, the transport gripper 32 is custom-designed and mainly consists of a screw and specially shaped metal components. The transport gripper 32, under the action of the third motor 33, clamps the part 101 of the tailpipe hanger, then transports the part 101 above the body 102 of the tailpipe hanger until the part 101 is accurately aligned with the body 102 before lowering it. Afterward, the clamping module 40 can be used for alignment correction, the details of which are described below.

[0058] In this invention, the transport base 31 is located at the angle formed by the first guide rail 21 and the support frame 11. In this way, the movement path of the transport gripper 32 is effectively shortened, which further improves the transport efficiency and transport speed of the transport module 30.

[0059] Figure 5 for Figure 1 A partial view showing the structure of the press-fit module 40;

[0060] Figure 6 for Figure 5 A partial view showing the structure of the press-fit assembly 40.

[0061] In one embodiment, such as Figure 1 and 5 As shown, the pressing module 40 includes a press 41 and a pressing assembly. Preferably, the press 41 is configured in a U-shape and sits on the first guide rail 21; the pressing assembly is mounted on the press 41 and forms a sliding connection with the press 41, which facilitates subsequent pressing operations.

[0062] In this invention, such as Figure 5 and 6As shown, the pressing assembly includes an adjusting plate 42 and grippers 43 that are slidably connected to the press 41. Preferably, two spaced-apart robotic arms extend outward from the adjusting plate 42, and at least four grippers 43 are provided and symmetrically mounted on the two robotic arms for clamping the tailpipe suspension part 101, thereby facilitating subsequent correction work.

[0063] Preferably, the gripper 43 is configured in an L-shape and includes a limiting portion 431 for abutting against the side wall of the tailpipe suspension component 101, and a locking portion 432 for abutting against the top wall of the tailpipe suspension component 101. This improves the gripper 43's ability to hold the component 101 in place, thereby ensuring its stability and safety during assembly.

[0064] In one embodiment, such as Figure 6 As shown, the press-fit assembly also includes a detection controller 44 connected to the adjusting plate 42 and the gripper 43 respectively. Preferably, the detection controller 44 is a laser rangefinder. In this invention, the detection controller 44 can detect the relative position of the component 101 and the body 102 of the tailpipe suspension in real time, and then determine whether the component 101 and the body 102 are aligned based on the detection result. If they are not aligned, the first screw disk 222 is rotated to drive the body 102 to rotate relative to the component 101, thereby correcting the position of the body 102. Preferably, the gripper 43 is driven by a servo motor 45.

[0065] In one embodiment, such as Figure 5 As shown, the press assembly also includes a drive component 46. The drive component 46 extends longitudinally into the press 41 and connects to the adjusting plate 42, thereby driving the adjusting plate 42 to perform axial reciprocating motion. During press assembly, the adjusting plate 42 can move downward under the action of the drive component 46, thereby pressing the component 101 against the body 102. Then, the first motor 223 drives the first screw disc 222 to rotate the body 102 to achieve a threaded connection with the component 101, thereby completing the assembly of the tailpipe hanger.

[0066] According to the present invention, the assembly platform 100 for the tailpipe hanger further includes a PLC control cabinet 50 connected to the feeding module 10, the clamping module 22, the handling module 30, and the pressing module 40 respectively. Preferably, the present invention can ensure that the modules can work together through the logic instructions of the PLC control cabinet 50.

[0067] The working process of this invention is described below:

[0068] (1) Loading: Fix the tailpipe hanger component 101 vertically on the material tray; clamp the tailpipe hanger body 102 on the clamping module 22 by the gripper 225.

[0069] (2) Select the assembly program: Select the pre-tested assembly program in the PLC control cabinet 50 and start the assembly operation.

[0070] (3) Assembly (This is an automated operation that requires no human intervention):

[0071] First, the transport gripper 32 clamps the part 101 of the tailpipe hanger under the drive of the third motor 33, and transports the part 101 to the top of the body 102 of the tailpipe hanger until the part 101 is aligned with the body 102 and then lowers it.

[0072] Then, the relative position of the tailpipe suspension component 101 and the body 102 is detected in real time by the detection controller 44, and the results are used to determine whether the two are fully aligned (i.e., whether the positions of the part holes or part slots during the assembly process are aligned). If they are not aligned, the first screw disk 222 is rotated to drive the body 102 to rotate relative to the component 101, thereby correcting the position of the body 102.

[0073] Subsequently, the adjusting plate 42 moves downward under the action of the driving component 46 to press the tailpipe hanger component 101 and the body 102 together, and drives the first screw plate 222 through the first motor 223 to rotate the body 102 to achieve threaded connection with the component 101, thereby completing the assembly of the tailpipe hanger.

[0074] Finally, repeat the above steps until all parts are assembled.

[0075] (4) Unloading: The crane moves the assembled tailpipe suspension from the first guide rail 21.

[0076] According to a second aspect of the present invention, an assembly method is provided that uses an assembly platform 100 as described above, comprising the following steps:

[0077] First, the second motor 226 drives the gripper 225 to clamp the body 102 of the tailpipe hanger; then the transport gripper 32 transfers the tailpipe hanger components 101 to dock with the body 102.

[0078] Then, the relative position of the component 101 and the body 102 is detected by the detection controller 44, and the position of the body 102 is corrected by rotating the first screw disk 222 according to the detection result.

[0079] Then, the adjusting plate 42 is pressed down by the driving component 46 to press the component 101 against the body 102, and the body 102 is rotated by the first screw 222 and fixedly connected to the component 101.

[0080] Finally, the assembled tailpipe suspension moves outward under the action of the first guide rail 21 and is rotated away by the trolley, repeating the cycle until all tailpipe suspensions are assembled.

[0081] Compared to existing technologies, the advantages of this invention are as follows: This invention enables fully mechanized and automated operation, that is, by using logic instructions from the PLC control cabinet 50 to ensure that each module can work collaboratively, thereby solving the problems of high labor intensity and low assembly efficiency in existing technologies. Furthermore, this device has a standardized process flow to ensure automated assembly of the product, thus guaranteeing the assembly efficiency and quality of the tailpipe hanger body 102 and components 101.

[0082] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art can easily make changes or modifications within the scope of the present invention, and such changes or modifications should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An assembly platform for a tailpipe hanger, comprising: a feeding module (10) for placing components (101) of the tailpipe hanger, a conveying mechanism comprising a first guide rail (21) and a plurality of clamping modules (22) arranged on the first guide rail (21) and used for fixing a body (102) of the tailpipe hanger, and a transfer module (30) arranged between the feeding module (10) and the first guide rail (21) and used for transferring the components (101), wherein a press-fitting module (40) is arranged on the first guide rail (21), the components (101) are configured to be docked with the body (102) under the action of the transfer module (30) and pressed under the action of the press-fitting module (40).

2. The assembly platform for a tailpipe hanger according to claim 1, wherein, The clamping module (22) comprises a base (221), a first screw disc (222) rotatably connected with the base (221), and a first motor (223) for driving the first screw disc (222) to rotate.

3. The assembly platform for a tailpipe hanger according to claim 2, wherein, The press-fitting module (40) comprises a press (41) and a press-fitting assembly arranged on the press (41), wherein the press-fitting assembly comprises an adjusting plate (42) slidably connected with the press (41), a gripper (43) arranged on the adjusting plate (42) and used for clamping the components (101), and a detection controller (44) connected with the adjusting plate (42) and the gripper (43), The detection controller (44) is configured to detect the relative position of the components (101) and the body (102), and to correct the position of the body (102) by rotating the first screw disc (222) according to the detection result.

4. The assembly platform for a tailpipe hanger according to claim 3, wherein, At least four symmetrical grippers (43) are arranged on the adjusting plate (42), the grippers (43) are configured in an L-shaped structure and comprise a limiting portion (431) for abutting against a side wall of the components (101), and a locking portion (432) for abutting against a top wall of the components (101).

5. The assembly platform for a tailpipe hanger according to claim 4, wherein, A driving member (46) connected with the adjusting plate (42) is arranged on the press (41), The adjusting plate (42) can descend under the action of the driving member (46) to press the components (101) and the body (102), and the body (102) can rotate under the driving action of the first screw disc (222) to be fixedly connected with the components (101).

6. The assembly platform for a tailpipe hanger of claim 2, wherein, The clamping module (22) further comprises a second screw disc (224) arranged on the first screw disc (222), a hand claw (225) arranged on the second screw disc (224) and used for clamping the body (102), and a second motor (226) connected with the second screw disc (224) and used for driving the hand claw (225).

7. The assembly platform for a tailpipe hanger according to claim 6, wherein, The feeding module (10) comprises a support rack (11), second guide rails (12) arranged side by side at two ends of the support rack (11), and a driving cylinder (13) arranged between the two second guide rails (12), The feeding module (10) further comprises a plurality of tray groups (14) mounted on the second guide rails (12) and the driving cylinder (13), and a signal controller (15) is arranged on each tray group (14).

8. The assembly platform for a tailpipe hanger according to claim 7, wherein, Each tray group (14) is composed of at least three trays for fixing the parts (101).

9. The assembly platform for a tailpipe hanger of claim 1, wherein, The carrying module (30) comprises a carrying base (31), a carrying hand grab (32) arranged on the carrying base (31) and used for clamping the parts (101), and a third motor (33) used for driving the carrying hand grab (32).

10. The assembly platform for a tailpipe hanger of claim 1, wherein, The assembly platform for the tail pipe hanger further comprises a PLC control cabinet (50) connected with the feeding module (10), the clamping module (22), the carrying module (30) and the pressing module (40) respectively.

11. An assembly method using the assembly platform according to any one of claims 1 to 10, comprising the following steps: S1, clamping the body (102) of the tail pipe hanger by the hand grab (225) driven by the second motor (226), and transferring the parts (101) of the tail pipe hanger to be connected with the body (102) by the carrying hand grab (32); S2, detecting the relative position of the parts (101) and the body (102) by the detection controller (44), and correcting the position of the body (102) by rotating the first screw disc (222) according to the detection result; S3, pressing the parts (101) and the body (102) by the adjusting plate (42) driven by the driving member (46), and rotating the body (102) by the first screw disc (222) to be fixedly connected with the parts (101).

Images