Three-stage conversion fishing speed-up tool
The three-level switching accident salvage tool controlled by PLC module solves the problems of slow tool switching, inaccurate positioning, and inconvenient fault handling in traditional salvage equipment. It realizes fast and accurate tool switching and automatic fault cut-off, improving the efficiency and safety of salvage operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DAQING DRILLING ENGINEERING CO LTD
- Filing Date
- 2024-11-19
- Publication Date
- 2026-05-29
Smart Images
Figure CN122106455A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of oilfield equipment technology, specifically a three-stage conversion accident salvage acceleration tool. Background Technology
[0002] Conventional salvage equipment is widely used in marine, riverine, and engineering rescue scenarios to retrieve or recover sunken objects or clear underwater obstacles. Typically, this type of equipment consists of a main unit, a robotic arm, a control system, and interchangeable salvage tool connectors to adapt to diverse operational needs. Salvage tool connectors come in various forms, such as grappling hooks, drill bits, grab buckets, and digging tools, and can be replaced according to task requirements, providing a certain degree of flexibility and applicability. However, in actual operation, conventional salvage equipment often faces some problems that urgently need to be solved.
[0003] First, when switching between different tool heads, traditional salvage equipment requires the entire equipment to be completely retracted before a new salvage tool can be changed, resulting in excessively long switching time and affecting operational efficiency. In complex salvage scenarios, frequent tool head changes are not only time-consuming but also increase operational complexity, making it difficult to meet the need for rapid switching. Secondly, in conventional salvage equipment, the positioning of the tool joint often lacks precision, which can easily lead to the joint not accurately reaching the switching position. Due to inaccurate positioning, the operator may need to make repeated adjustments, resulting in a disrupted salvage process, reduced operational accuracy, increased operation time, and increased risk of errors. Finally, existing salvage tools lack an automatic cut-off function when they encounter jamming or malfunction. When the joint is stuck, it cannot be safely separated, which may damage the equipment or even hinder its retraction. This design increases maintenance costs, poses safety hazards, and threatens the continuity of salvage operations and the safety of the equipment. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a three-level conversion accident salvage acceleration tool, which solves the problems of slow tool switching, low positioning accuracy, and inconvenient troubleshooting of traditional salvage equipment during operation.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a three-stage conversion accident salvage acceleration tool, comprising: PLC modules are used for the automated control of equipment. The protective frame, installed on one side of the PLC module, provides space for the equipment's detection. A fixed plate, which is installed on the side of the protective frame away from the PLC module, is used to provide the track required for equipment switching; Rectangular columns, located on the side of the fixed plate away from the protective frame, are used to support different salvage tools; The drive assembly, located on one side of the fixed disk and arranged in a circular array, is used to control the movement trajectory of the rectangular column. The detection component, located inside the protective frame, is used to detect whether the rectangular column has moved to the specified position; The fault cut-off assembly is located on the side of the fixed plate away from the protective frame and is used to cut off the retrieval tool in case of failure. The drive assembly includes an electric push rod, which is disposed on one side of a fixed plate. A connecting plate is fixedly connected to the output end of the electric push rod, and a limit block is fixedly connected to one side of the connecting plate. The limit block is connected to a rectangular column.
[0006] Preferably, the detection component includes an alignment base, which is disposed inside the protective frame. A verification ring is provided on one side of the alignment base, and a scanning light is provided on one side of the verification ring. A cylinder is disposed inside the alignment base.
[0007] Preferably, the fault cut-off assembly includes a storage frame, which is installed on the side of the fixed plate away from the protective frame, and a knife gate is provided inside the storage frame.
[0008] Preferably, a cylinder is provided inside the rectangular column, and a grinding shoe is fixed to the output end of the cylinder on one side.
[0009] Preferably, a tap is fixed to one output end of the cylinder on the other side, and a male tap is fixed to one output end of the cylinder in the middle.
[0010] Preferably, the PLC module includes: The detection module receives verification information from the scanning light to ensure that the rectangular column has been pushed to the designated area. The switching module is used to control the electric push rod to switch between the grinding shoe, male tap, and female tap according to the required salvage operation needs; The positioning drive module is used to control cylinder two to push the rectangular column after the detection module determines that the rectangular column has reached the designated position, so as to mechanically press the button for the required operation. The fault detection and self-shutdown module is used to determine the operation based on the specific situation of the equipment salvage operation. If there is no fault, the operation will not proceed; if there is a fault and the switch is stuck, the operation will begin and the position jamming will be automatically cut off.
[0011] Preferably, the detection module includes: A position sensing unit is used to detect the position of the target rectangular column and ensure that it is within a designated area; The signal receiving unit receives a verification signal from the scanning lamp to determine whether confirmation information of the target location has been received. The data processing unit is used to process the scanning light data, compare it with the target position, and issue a confirmation signal or warning. The feedback control unit sends position information back to the PLC module, indicating whether subsequent operations can continue.
[0012] Preferably, the switching module includes: The control drive unit controls the switching operation via an electric push rod, enabling flexible control of different components such as the grinding shoe, male tap, and female tap. The mode selection unit selects the appropriate salvage operation mode according to operational requirements and issues a switching command via an electric push rod.
[0013] Preferably, the positioning drive module includes: A positioning unit, which is used in conjunction with a scanning lamp to accurately measure the current position of the device; A mobile drive unit is used to control the movement and positioning of the device by driving cylinder two, ensuring that it reaches the designated position; The route planning unit is used to plan the optimal travel distance based on the target location to avoid errors; The operation execution unit is used to control cylinder two to perform the required button operation after the equipment reaches the target position.
[0014] Preferably, the fault detection self-disconnection module includes: The fault diagnosis unit is used to analyze the engagement and disengagement status, determine whether there is a fault, and whether automatic disconnection needs to be initiated. The automatic cut-off unit is used to trigger the disconnection device and control the guillotine to cut off the stuck part when a cylinder-driven grinding tool is detected to be stuck, so as to protect the equipment. An alarm unit is used to issue a warning signal, notify the operator, and record fault information after a fault is detected.
[0015] This invention provides a three-stage conversion accident salvage acceleration tool. It has the following beneficial effects: 1. This invention enables rapid switching between different salvage tool connectors without requiring complete equipment retraction, thus greatly shortening the switching time. During the salvage process, operators can directly select different tools such as grinding shoes, male taps, or screw taps to meet diverse operational needs and improve overall operational efficiency. It is particularly suitable for complex salvage scenarios where tools are frequently changed.
[0016] 2. This invention ensures that the connector always reaches the switching position accurately through an internal sensing system. The system automatically confirms when the connector reaches the designated position, making the switching process more stable and smooth, avoiding repeated adjustments caused by positioning errors, and greatly improving the accuracy and reliability of salvage operations.
[0017] 3. When the joint of the salvage tool becomes stuck or malfunctions, the system can automatically trigger the cut-off function to safely separate the stuck tool joint. This function not only avoids equipment damage caused by jamming, but also prevents equipment retraction from being obstructed, ensuring the continuity of salvage operations and the safety of the equipment, reducing maintenance costs and minimizing the risk of accidents. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a flowchart of the PLC module control process of the present invention; Figure 5 This is a schematic diagram of the detection module of the present invention; Figure 6 This is a schematic diagram of the switching module of the present invention; Figure 7 This is a schematic diagram of the positioning drive module of the present invention; Figure 8 This is a schematic diagram of the fault detection self-disconnection module of the present invention.
[0019] The components are as follows: 1. PLC module; 2. Protective frame; 3. Fixing plate; 4. Rectangular column; 5. Cylinder 1; 6. Grinding shoe; 7. Male tap; 8. Tap; 9. Electric push rod; 10. Connecting plate; 11. Limit block; 12. Alignment base; 13. Verification ring; 14. Scanning light; 15. Cylinder 2; 16. Storage frame; 17. Knife gate. Detailed Implementation
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:
[0021] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a three-level conversion accident salvage acceleration tool, including: PLC module 1 is used for the automated control of control equipment; The protective frame 2 is installed on one side of the PLC module 1 to provide detection space for the equipment; Fixed plate 3, which is installed on the side of protective frame 2 away from PLC module 1, is used to provide the track required for equipment switching; Rectangular column 4 is located on the side of fixed plate 3 away from protective frame 2, and is used to support different salvage tools; The drive assembly, which is located on one side of the fixed disk 3 and is arranged in a circular array, is used to control the movement trajectory of the rectangular column 4; The detection component, which is located inside the protective frame 2, is used to detect whether the rectangular column 4 has moved to the specified position; The fault cut-off assembly is located on the side of the fixed plate 3 away from the protective frame 2, and is used to cut off the retrieval tool in case of failure. The drive assembly includes an electric push rod 9, which is located on one side of the fixed plate 3. A connecting plate 10 is fixedly connected to the output end of the electric push rod 9. A limit block 11 is fixedly connected to one side of the connecting plate 10. The limit block 11 is connected to the rectangular column 4. The detection component includes an alignment base 12, which is located inside the protective frame 2. A verification ring 13 is provided on one side of the alignment base 12, and a scanning light 14 is provided on one side of the verification ring 13. A cylinder 2 15 is provided inside the alignment base 12. The fault cut-off assembly includes a storage frame 16, which is installed on the side of the fixed plate 3 away from the protective frame 2, and a knife switch 17 is provided inside the storage frame 16. A cylinder 5 is installed inside the rectangular column 4, and a grinding shoe 6 is fixed to the output end of one side of the cylinder 5. On the other side, a tap 8 is fixed to the output end of cylinder 5, and a male tap 7 is fixed to the output end of cylinder 5 in the middle.
[0022] Specifically, during equipment operation, PLC module 1 activates electric push rod 9 based on current salvage requirements, driving it to move connecting plate 10, allowing limit block 11 and rectangular column 4 to slide precisely on the track within fixed plate 3. During this process, fixed plate 3 provides stable guidance, ensuring limit block 11 remains within the track and preventing deviation. When limit block 11 is pushed to the central area, the equipment automatically passes the position of scanning light 14, using laser for position confirmation. The laser emitted by scanning light 14 ensures no obstructions, and this process is completed instantaneously, guaranteeing smooth signal transmission. Only when the laser scan is unobstructed will the system confirm that limit block 11 has accurately reached the central area. This precise detection effectively avoids position judgment errors, ensuring the safety and stability of the salvage operation.
[0023] Once the position is confirmed, PLC module 1 immediately issues a new command to activate cylinder 2 15. Cylinder 2 15 then precisely extends to the center area, aligning with limit block 11, and a specific button is pressed. At this time, cylinder 1 5 is activated, which in turn pushes the selected retrieval tool—grinding shoe 6, male tap 7, or screw tap 8—out from the storage frame 16, entering the retrieval state. The entire propulsion process is precisely controlled by PLC module 1, enabling the equipment to quickly and stably switch between different retrieval tools, effectively improving operational efficiency.
[0024] When it is necessary to change the salvage tool, cylinder 2 (15) automatically retracts, releasing the pressure on limit block 11, allowing the salvage tool driven by cylinder 1 (5) to safely return to its original position. At this time, the electric push rod 9 is controlled again, pulling back the connecting plate 10, restoring limit block 11 and rectangular column 4 to their initial positions, thus preparing for the selection of a new salvage tool. This smooth operation process allows the equipment to flexibly respond to different salvage needs, ensuring adaptability in various complex scenarios.
[0025] If the grinding shoe 6, male tap 7, or tap 8 becomes jammed during operation, PLC module 1 will immediately detect the abnormality and issue an alarm to alert the operator. Simultaneously, the system automatically activates the gate 17 to cut off the jammed retrieval tool, preventing the equipment from becoming stuck and unable to retract properly. This function effectively prevents equipment damage and efficiency loss due to accidental jamming, ensuring equipment safety and controllability. Through precise control of this series of actions, the entire retrieval operation is completed smoothly and efficiently, greatly improving the reliability of the operation process and the service life of the equipment. Example 2:
[0026] Please see the appendix Figure 4 - Appendix Figure 8 PLC module 1 includes: The detection module is used to receive the verification information from the scanning light 14 to ensure that the rectangular column 4 has been pushed to the designated area. The switching module is used to control the electric push rod 9 to switch the grinding shoe 6, male tap 7 and tap 8 according to the required salvage operation needs; The positioning drive module is used to control the cylinder 15 to push the rectangular column 4 to press the button for the required operation after the detection module determines that the rectangular column 4 has reached the designated position. The fault detection and self-shutdown module is used to determine the specific situation of the equipment salvage operation. If there is no fault, no operation will be carried out. If there is a fault and the switch 17 is stuck, operation will begin and the position jammer will be automatically cut off. The detection module includes: A position sensing unit is used to detect the position of the target rectangular column 4 to ensure that it is within the designated area; The signal receiving unit receives a verification signal from the scanning lamp 14 to determine whether confirmation information of the target location has been received. The data processing unit is used to process the data from the scanning lamp 14, compare it with the target position, and issue a confirmation signal or warning. The feedback control unit sends the position information back to PLC module 1, indicating whether subsequent operations can continue. The switching modules include: The control drive unit controls the switching operation through the electric push rod 9, so as to realize flexible control of different parts such as the grinding shoe 6, male tap 7, and tap 8; The mode selection unit selects the appropriate salvage operation mode according to the operational requirements and issues a switching command to the electric push rod 9. The positioning driver module includes: A positioning unit, which is used in conjunction with scanning lamp 14 to accurately measure the current position of the device; A mobile drive unit is used to control the movement and positioning of the device via drive cylinder 215 to ensure that it reaches the designated position. The route planning unit is used to plan the optimal travel distance based on the target location to avoid errors; An operation execution unit is used to control cylinder 215 to perform the required button operation after the equipment reaches the target position; The fault detection and self-disconnection module includes: The fault diagnosis unit is used to analyze the engagement and disengagement status, determine whether there is a fault, and whether automatic disconnection needs to be initiated. An automatic cut-off unit is used to trigger a disconnect device and control the gate 17 to cut off the stuck part when a jamming fault is detected in the grinding tool driven by cylinder 5, so as to protect the equipment. An alarm unit is used to issue a warning signal, notify the operator, and record fault information after a fault is detected.
[0027] Specifically, the device of this invention uses a PLC module 1 to control the entire equipment, achieving efficient and precise salvage operations. The detection module in the PLC module 1 verifies the position of the rectangular post 4 using a scanning light 14, ensuring it is pushed to the central area and avoiding misoperation. When the rectangular post 4 reaches the designated area and the scanning light 14 is unobstructed, the position sensing unit and signal receiving unit in the detection module work together to ensure the accuracy of the position confirmation signal. The data processing unit feeds back the position information to the PLC module 1, and under the guidance of the feedback control unit, proceeds to the next step of the operation. Simultaneously, the switching module flexibly controls the electric push rod 9, switching between different salvage components, including a grinding shoe 6, a male tap 7, and a screw tap 8, through a control drive unit to meet different salvage needs.
[0028] Once the position of rectangular post 4 is determined, the positioning drive module is activated. The positioning unit, in conjunction with the scanning light 14, accurately measures the current position of rectangular post 4. The movement drive unit drives cylinder 2 15 to push it to the position of the limit block 11 in the central area. The operation execution unit then presses the button, causing cylinder 1 5 to drive the selected retrieval tool, such as a grinding shoe 6, a male awl 7, or a tap 8, to extend from outside the storage frame 16 and enter the retrieval state. To ensure the accuracy of each operation, the route planning unit calculates the optimal moving distance, avoiding errors during the sliding process.
[0029] During operation, if the equipment detects that the retrieval tool driven by cylinder 5 is jammed or obstructed, the fault detection and automatic disconnection module will analyze the jamming situation through the fault judgment unit to determine whether automatic disconnection needs to be initiated. After confirming the fault, the automatic disconnection unit is quickly activated, controlling the switch 17 to cut off the jammed part of the retrieval tool, ensuring the integrity and safety of the equipment and preventing the equipment from being unable to be retracted due to jamming. At this time, the alarm unit issues a warning signal to notify the operator of the fault occurrence and records relevant information for subsequent maintenance and repair.
[0030] With the cooperation of the above modules, PLC module 1, under the constraints of protective frame 2 and fixed plate 3, enables electric push rod 9, connecting plate 10, limit block 11 and alignment base 12 to form an orderly working process. Each module and unit operates in coordination, ensuring the efficient, stable and safe performance of the device in salvage operations. It realizes full-process automated control from detection to execution and fault handling, improving the reliability and operational accuracy of the device.
[0031] Working Principle: When the equipment is operating, according to the salvage requirements, PLC module 1 controls the corresponding electric push rod 9 to drive it. This allows the electric push rod 9 to push the connecting plate 10, causing the limit block 11 and rectangular column 4 to slide within the track of the fixed plate 3. When it is pushed to the center area, it is confirmed by a laser scan at the position of the scanning light 14. Only if there are no obstructions can the laser signal of the scanning light 14 be transmitted normally, thus determining the position of the limit block 11. After confirmation, PLC module 1 sends another command to start cylinder 15, allowing cylinder 15 to extend to the position of the limit block 11 in the center area. Pressing the button drives cylinder 5, which in turn pushes the corresponding grinding shoe 6, male tap 7, or tap 8 out of the storage frame 16 to perform the retrieval operation. When switching is needed, cylinder 2 15 simply retracts, and the limit block 11 button is no longer pressed. At this time, cylinder 5 drives the retrieval tool in operation back to its original position, and then the electric push rod 9 controls it to pull back to its original position. At this time, a new retrieval tool can be selected. When the grinding shoe 6, male tap 7, or tap 8 is stuck in operation, the corresponding PLC module 1 issues an alarm, which then controls the gate 17 to cut off the outwardly extended retrieval tool to prevent the entire device from being unable to be retracted due to jamming.
[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A three-stage accident salvage acceleration tool, characterized in that: include: PLC module (1), which is used for the automated control of control equipment; The protective frame (2) is installed on one side of the PLC module (1) to provide detection space for the equipment; A fixed plate (3) is installed on the side of the protective frame (2) away from the PLC module (1) to provide the track required for equipment switching; A rectangular column (4) is set on the side of the fixed plate (3) away from the protective frame (2) to support different salvage tools; The drive assembly, which is located on one side of the fixed disk (3) and distributed in a ring array, is used to control the movement trajectory of the rectangular column (4); The detection component, which is set inside the protective frame (2), is used to detect whether the rectangular column (4) has moved to the specified position; The fault cut-off assembly is located on the side of the fixed plate (3) away from the protective frame (2) and is used to cut off the retrieval tool in case of failure. The drive assembly includes an electric push rod (9), which is disposed on one side of the fixed plate (3). A connecting plate (10) is fixedly connected to the output end of the electric push rod (9). A limit block (11) is fixedly connected to one side of the connecting plate (10). The limit block (11) is connected to the rectangular column (4).
2. The three-stage conversion accident salvage acceleration tool according to claim 1, characterized in that, The detection component includes an alignment base (12), which is located inside the protective frame (2). A verification ring (13) is provided on one side of the alignment base (12), and a scanning light (14) is provided on one side of the verification ring (13). A cylinder (15) is provided inside the alignment base (12).
3. The three-stage conversion accident salvage acceleration tool according to claim 1, characterized in that, The fault cut-off assembly includes a storage frame (16), which is installed on the side of the fixed plate (3) away from the protective frame (2), and a knife gate (17) is provided inside the storage frame (16).
4. The three-stage conversion accident salvage acceleration tool according to claim 1, characterized in that, The rectangular column (4) is equipped with a cylinder (5), and a grinding shoe (6) is fixed at the output end of the cylinder (5) on one side.
5. The three-stage conversion accident salvage acceleration tool according to claim 4, characterized in that, A tap (8) is fixed at the output end of the cylinder one (5) on the other side, and a male tap (7) is fixed at the output end of the cylinder one (5) in the middle.
6. The three-stage conversion accident salvage acceleration tool according to claim 1, characterized in that, The PLC module (1) includes: The detection module is used to receive the verification information from the scanning light (14) to ensure that the rectangular column (4) is pushed to the designated area; The switching module is used to control the electric push rod (9) to switch the grinding shoe (6), male tap (7) and tap (8) according to the required salvage operation requirements. The positioning drive module is used to control the cylinder two (15) to push the rectangular column (4) to press the button of the required operation after the detection module determines that the rectangular column (4) has reached the specified position. The fault detection self-shutdown module is used to determine the specific situation of the equipment salvage operation. If there is no fault, the operation will not be carried out. If there is a fault, the gate (17) will start operation and automatically cut off the position gate.
7. The three-stage conversion accident salvage acceleration tool according to claim 6, characterized in that, The detection module includes: A position sensing unit is used to detect the position of the target rectangular column (4) to ensure that it is within the specified area; The signal receiving unit receives a verification signal from the scanning lamp (14) to determine whether confirmation information of the target location has been received; The data processing unit is used to process the data of the scanning lamp (14), compare it with the target position, and issue a confirmation signal or warning; The feedback control unit feeds back the position information to the PLC module (1) to indicate whether subsequent operations can continue.
8. The three-stage conversion accident salvage acceleration tool according to claim 6, characterized in that, The switching module includes: The control drive unit controls the switching operation through an electric push rod (9) to achieve flexible control of different parts such as the grinding shoe (6), male tap (7), and screw tap (8); The mode selection unit selects the appropriate salvage operation mode according to the operation requirements and issues a switching command to the electric push rod (9).
9. The three-stage conversion accident salvage acceleration tool according to claim 6, characterized in that, The positioning drive module includes: A positioning unit, which is used in conjunction with a scanning lamp (14) to accurately measure the current position of the device; A mobile drive unit is used to control the movement and positioning of the device by driving cylinder two (15) to ensure that it reaches the designated position; The route planning unit is used to plan the optimal travel distance based on the target location to avoid errors; An operation execution unit is used to control cylinder two (15) to perform the required button operation after the equipment reaches the target position.
10. The three-stage conversion accident salvage acceleration tool according to claim 6, characterized in that, The fault detection self-disconnection module includes: The fault diagnosis unit is used to analyze the engagement and disengagement status, determine whether there is a fault, and whether automatic disconnection needs to be initiated. Automatic cut-off unit, which is used to trigger the disconnect device and control the guillotine (17) to cut off the stuck part when a jamming fault of the grinding tool driven by cylinder 1 (5) is detected, so as to protect the equipment; An alarm unit is used to issue a warning signal, notify the operator, and record fault information after a fault is detected.