Automatic unhooking device and method based on offshore hoisting

Abstract

The present invention relates to the technical field of automatic unhooking devices, specifically to an automatic unhooking device based on offshore hoisting and a method thereof. It includes an upper hoisting platform, a lower hanger and a hook platform, and also includes a group of guide rods installed between the upper hoisting platform and the lower hanger, each guide rod is sleeved with a limit spring corresponding to the position between the lower hanger and the hook platform, and a rotating shaft is rotatably connected to the inner surface of the hook platform. The rotating shaft is driven by a rotation motor, and a C-shaped ring is installed on the rotating shaft. Two locking gears are installed on the rotating shaft, and locking tooth plates are installed on the lower hanger at positions corresponding to the two locking gears. The beneficial effects of the present invention are: when the device is used, on the one hand, it can use electric control and gravity control methods to improve the safety of the unhooking device in the hoisting state in a multi-effect manner, and on the other hand, it can multi-effect control the safety of the cargo when the unhooking device is unhooked.

Description

Technical Field

[0001] The invention relates to the technical field of automatic unhooking devices, and in particular to an automatic unhooking device based on offshore hoisting and a method thereof. Background Art

[0002] Using a crane to lower objects on a barge is a common technical means for offshore operations. When lowering objects, an automatic rope-releasing device is used to separate the lifting rope and the object. After the object is lifted to a specific location, one end of the lifting rope is separated from the automatic rope-releasing device to form a separated end. The object on the lifting rope falls from the separated end of the lifting rope, avoiding the construction workers from manually loosening or cutting the lifting rope, and salvaging and recovering the lifting rope in the water, thereby reducing operational risks and improving work efficiency.

[0003] Traditional offshore lifting methods often rely on manual operation, which has problems such as complex operation, low efficiency, and potential safety hazards. Especially in severe sea conditions, manual operation is more difficult and prone to accidents.

[0004] In the prior art, although the patent document with publication number CN217708520U provides an automatic unhooking device and system based on offshore lifting, the device realizes the function of automatic unhooking through a moving part that can move horizontally back and forth and a movable end located on the moving part, combined with a loosening part on the frame.

[0005] The device is deficient in using electric control and gravity control to improve the safety of the hoisting state, and fails to fully integrate multiple safety mechanisms to cope with the complex offshore environment. In addition, the safety control of the cargo during the uncoupling process is also single, lacking multiple control measures to ensure the stability and safety of the cargo during the uncoupling process. Summary of the invention

[0006] The present invention aims at the technical problems existing in the prior art and provides an automatic unhooking device based on offshore hoisting and a method thereof to solve the problems that, when the existing unhooking device is used, on the one hand, it is not convenient to use electric control and gravity control methods to improve the safety of the unhooking device in the hoisting state in a multi-effect manner; on the other hand, it is not convenient to multi-effect control the safety of the cargo when the unhooking device is unhooked.

[0007] The technical solution of the present invention to solve the above technical problems is as follows: an automatic unhooking device based on offshore hoisting, comprising an upper hoisting platform, a lower hoisting frame and a hook platform, and also comprising:

[0008] A group of guide rods installed between the upper hanging platform and the lower hanging bracket, each of the guide rods is sleeved with a limit spring corresponding to the position between the lower hanging bracket and the hook platform;

[0009] A rotating shaft rotatably connected between the inner surfaces of the hook platform, wherein the rotating shaft is driven by an indexing motor;

[0010] A C-shaped ring is installed on the rotating shaft, two locking gears are installed on the rotating shaft, and locking tooth plates are installed on the lower hanger at positions corresponding to the two locking gears;

[0011] An annular hanging ring cooperates with the C-shaped ring, and two clamping and locking components that are mirror-imaged and cooperate with the annular hanging ring are installed between the upper hanging platform and the hook platform;

[0012] A winding and hanging mechanism is connected to the annular hanging ring and drives the annular hanging ring to retract and unwind;

[0013] The hook locking component cooperates with the C-shaped ring and locks the annular hanging ring in time;

[0014] A reinforcement component cooperates with the annular hanging ring and reinforces and limits the annular hanging ring;

[0015] Monitoring assembly for monitoring the three-axis acceleration of the ring hoist.

[0016] Based on the above technical solution, the present invention can also be improved as follows.

[0017] Furthermore, a lifting ring, an electric control box and a battery are fixedly installed on the upper hanging platform, a remote central control module and a single-chip microcomputer are installed in the electric control box, ports of the battery are electrically connected to the remote central control module and the single-chip microcomputer, and a data end of the remote central control module is connected to the single-chip microcomputer data.

[0018] The beneficial effect of adopting the above further solution is that when in use, the lifting ring is connected to the lifting equipment on the seagoing vessel, and the power using mechanism in the device is powered by the battery.

[0019] Through the setting of the remote central control module, the decoupling device can receive the central control of the external remote central control device in real time, and then control whether the decoupling device is decoupled or not;

[0020] Remote central control module and battery models can be selected.

[0021] Furthermore, the winding and lifting mechanism includes a hanging tongue and a winding roller rotatably connected to the upper hanging platform, a winding motor is installed on the side of the upper hanging platform, the output shaft end of the winding motor is fixedly connected to the winding roller, a first lifting rope is wound on the winding roller, a second lifting rope is sleeved on the hanging tongue, a locking bolt is threadedly installed on the hanging tongue, the bottom end of the first lifting rope is connected to the hanging tongue through a tension sensor, and the other end of the second lifting rope is fixedly connected to the annular hanging ring.

[0022] The beneficial effect of adopting the above further solution is that when the unhooking device is in a non-use state, the first sling rope is fully rolled up by the roller, thereby effectively reducing the occupied volume of the device and facilitating the flexible deployment of the device;

[0023] By setting the tension sensor, the hoisting weight of the unhooking device can be monitored in real time;

[0024] By setting the locking bolt, the second hanging rope is effectively restricted on the hanging tongue.

[0025] Furthermore, a driving gear is fixedly mounted on the output shaft end of the indexing motor, and the driving gear is transmission-connected to a locking gear.

[0026] Furthermore, the clamping and locking component includes a clamp, a first connecting rod is hinged between the clamp and the hook platform, a second connecting rod is hinged between the clamp and the upper hanging platform, a clamping block that cooperates with the annular hanging ring is fixedly provided on the clamp, and the two clamping and locking components are respectively arranged on both sides of the annular hanging ring.

[0027] The beneficial effect of adopting the above further solution is that when the lifting ring, the upper lifting platform, the lower hanging frame and the hook platform are in a non-traction state, the two clamps lose their clamping effect on the annular lifting ring;

[0028] When the lifting ring, the upper lifting platform, the lower hanging frame and the hook platform are fully pulled by the equipment on the sea vessel, the first connecting rod and the second connecting rod are connected to the clamp, so that the two clamps can be sufficiently close to each other. After the two clamps are sufficiently close to each other, the annular lifting ring is then clamped on both sides. Through the double-sided clamping, the position of the annular lifting ring on the C-shaped ring is effectively limited, thereby effectively improving the safety of the use of the unhooking device in the lifting state;

[0029] When the lifting ring, upper lifting platform, lower lifting frame and hook platform are fully pulled by the equipment on the ship, the locking tooth plate and the locking gear are meshed as a whole, and then the layout angle of the C-shaped ring is limited and locked in the lifting state, so that the annular lifting ring is limited on the C-shaped ring and effectively reduces the detachment rate of the annular lifting ring from the C-shaped ring in the lifting state, thereby helping to improve the safety of the use of this device.

[0030] Furthermore, the hook locking component includes a clamp installed between the rotating shaft and the C-shaped ring, the clamp is fixedly provided with a U-shaped clamp, the U-shaped clamp is adapted to engage with the annular hanging ring, a pressure clamp is installed on the U-shaped clamp, a pressure bag is installed between the pressure clamp and the clamp, a ventilation flow channel is provided inside the rotating shaft, the inner cavity of the pressure bag is connected to the ventilation flow channel, and two mirror-image pressure control components are installed between the lower hanger and the hook platform.

[0031] Furthermore, the pressure control assembly includes a ventilation pipe, which is rotatably connected to the ventilation flow channel. Two symmetrically arranged air storage bags are installed between the lower hanger and the hook platform. The air storage bags are made of silicone. The inner cavities of the two air storage bags are connected to the ventilation pipe through a joint.

[0032] Furthermore, the reinforcement component includes an arc-shaped lock tongue, which is slidably connected to the hook platform, and two shaft sleeves are provided on the rotating sleeve of the rotating shaft. The two shaft sleeves are connected to the arc-shaped lock tongue through a connecting plate, and guide gears are installed on the two shaft sleeves. Linkage tooth plates are fixedly installed on the upper hanging platform and corresponding to the positions of the two guide gears. The two linkage tooth plates are respectively connected to the two guide gears in transmission, and a monitoring component is installed on the arc-shaped lock tongue.

[0033] Furthermore, the monitoring component includes a shaking head embedded in the arc-shaped lock tongue, a guide tube is fixedly installed on the bottom surface of the shaking head, a monitoring rod is slidably connected to the inner wall of the guide tube, a clamping spring is sleeved on the monitoring rod, and a three-axis acceleration sensor connected to the microcontroller data is installed on the guide tube.

[0034] The beneficial effect of adopting the above further scheme is that when in use, under the action of the tightening spring, the monitoring rod and the second lifting rope are tightly fitted. During lifting, the three-axis acceleration sensor is used to monitor the three-axis acceleration of the second lifting rope in real time, and then assist in judging the shaking amplitude of the second lifting rope in the lifting state. By real-time monitoring of the shaking amplitude of the second lifting rope, the lifting state of the device can be monitored in real time.

[0035] Furthermore, a method for unhooking an automatic unhooking device based on offshore hoisting comprises the following steps:

[0036] SS01, deployment, an automatic unhooking device based on offshore lifting. Before use, the lifting ring is connected to the lifting equipment on the seagoing vessel;

[0037] SS02, hoisting. Before hoisting, the annular hoisting ring is placed inside the C-shaped ring from the notch of the C-shaped ring. The object to be hoisted is hoisted via the second hoisting rope. After the annular hoisting ring is sent inside the C-shaped ring, the indexing motor drives the C-shaped ring to rotate to a set angle, and then the annular hoisting ring falls into the U-shaped bayonet. After the annular hoisting ring falls into the U-shaped bayonet, the hoisting equipment on the ship pulls the hoisting ring and causes the upper hoisting platform, the lower hoisting frame and the hook platform to move upward. When the upper hoisting platform, the lower hoisting frame and the hook platform are fully moved upward, the two clamps clamp the annular hoisting ring from both sides, and the gas inside the air storage bag is bulged into the pressure bag, and then the pressure clamp presses the annular hoisting ring to limit the position, and the arc-shaped lock tongue is rotated into the inner side of the annular hoisting ring, thereby limiting the position of the annular hoisting ring and improving the bearing strength of the C-shaped ring.

[0038] SS03, unhooking. When the hoisted object is transported to the designated load-bearing platform and is effectively carried by the load-bearing platform, the upper hoisting platform, the lower hanger and the hook platform lose the pulling force of the heavy object. When the upper hoisting platform, the lower hanger and the hook platform are fully moved down, the gas in the pressure bag flows back to the air storage bag, and the arc-shaped lock tongue and the two clamps are reset. After that, the indexing motor drives the C-shaped ring to rotate the set angle, thereby realizing the automatic disengagement of the annular hoisting ring.

[0039] The beneficial effects of the present invention are:

[0040] 1. When the device is in use, on the one hand, it can utilize electric control and gravity control to improve the safety of the unhooking device in the hoisting state, and on the other hand, it can control the safety of the cargo when the unhooking device is unhooked.

[0041] 2. In the present invention, when the lifting ring, the upper lifting platform, the lower hanging bracket and the hook platform are fully pulled by the equipment on the ship, the locking tooth plate and the locking gear are meshed as a whole, and then the layout angle of the C-shaped ring is limited and locked in the lifting state, so that the annular lifting ring is limited on the C-shaped ring and the detachment rate of the annular lifting ring from the C-shaped ring in the lifting state is effectively reduced, thereby helping to improve the safety of the use of the device.

[0042] 3. In the present invention, when the lifting ring, the upper lifting platform, the lower hanging frame and the hook platform are fully pulled by the equipment on the seagoing vessel, the first connecting rod and the second connecting rod are connected to the clamps so that the two clamps can be sufficiently close to each other. After the two clamps are sufficiently close to each other, the annular lifting ring is clamped on both sides. Through the double-sided clamping, the position of the annular lifting ring on the C-shaped ring is effectively limited, thereby effectively improving the safety of the use of the unhooking device in the lifting state.

[0043] 4. When the present invention is in use, under the action of the tightening spring, the monitoring rod and the second lifting rope are tightly fitted. During lifting, the three-axis acceleration sensor is used to monitor the three-axis acceleration of the second lifting rope in real time, and then assist in judging the shaking amplitude of the second lifting rope in the lifting state. Through the real-time monitoring of the shaking amplitude of the second lifting rope, the lifting state of the device can be monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the overall structure of an automatic unhooking device based on offshore hoisting according to the present invention;

[0045] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0046] Figure 3 For the present invention Figure 1 A schematic diagram of the structure from another perspective;

[0047] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0048] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle;

[0049] Figure 6 It is a schematic diagram of the structure of the first hanging rope and the second hanging rope of the present invention;

[0050] Figure 7 It is a cross-sectional structural schematic diagram of the rotating shaft and the indexing motor of the present invention;

[0051] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at D in the middle;

[0052] Fig. 9 This is a schematic diagram of the structure of the shaking head and the C-shaped ring of the present invention;

[0053] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure at point E in the middle.

[0054] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0055] 1. Upper hanging platform; 2. Lower hanging bracket; 3. Guide rod; 4. Hook platform; 5. Rotating shaft; 6. Rotating motor; 7. C-shaped ring; 8. Locking gear; 9. Locking tooth plate; 10. Annular hanging ring; 11. Lifting ring; 12. Electric control box; 13. Storage battery; 14. Hanging tongue; 15. Roller; 16. Winding motor; 17. First lifting rope; 18. Second lifting rope; 19. Lock bolt; 20. Tension sensor; 21. Clamp; 2 2. First connecting rod; 23. Second connecting rod; 24. Clamping plate; 25. U-shaped bayonet; 26. Pressure clamp; 27. Pressure bag; 28. Ventilation flow channel; 29. ​​Ventilation pipe; 30. Air storage bag; 31. Arc-shaped locking tongue; 32. Bushing; 33. Guide gear; 34. Linkage gear plate; 35. Shaking head; 36. Guide tube; 37. Monitoring rod; 38. Clamping spring; 39. Three-axis acceleration sensor; 40. Limit spring. DETAILED DESCRIPTION

[0056] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0057] The present invention provides the following preferred embodiments

[0058] like Figure 1-Figure 10 As shown, an automatic unhooking device based on offshore hoisting includes an upper hoisting platform 1, a lower hoisting frame 2 and a hook platform 4;

[0059] A lifting ring 11, an electric control box 12 and a battery 13 are fixedly installed on the upper hanging platform 1. A remote central control module and a single-chip microcomputer are installed in the electric control box 12. The ports of the battery 13 are electrically connected to the remote central control module and the single-chip microcomputer respectively, and the data end of the remote central control module is connected to the single-chip microcomputer data.

[0060] When in use, the lifting ring 11 is connected to the lifting equipment on the ship, and the battery 13 is set to supply power to the power using mechanism in the device;

[0061] Through the setting of the remote central control module, the decoupling device can receive the central control of the external remote central control device in real time, and then control whether the decoupling device is decoupled or not;

[0062] The remote central control module and the battery 13 can be selected in different models;

[0063] Also includes:

[0064] A group of guide rods 3 are installed between the upper hanging platform 1 and the lower hanging bracket 2, and a limit spring 40 is sleeved on each guide rod 3 and corresponds to the position between the lower hanging bracket 2 and the hook platform 4;

[0065] A rotating shaft 5 connected to the inner surface of the hook platform 4 is rotatably driven by an indexing motor 6;

[0066] A driving gear is fixedly mounted on the output shaft end of the indexing motor 6, and the driving gear is transmission-connected to a locking gear 8;

[0067] A C-shaped ring 7 is installed on the rotating shaft 5, two locking gears 8 are installed on the rotating shaft 5, and locking tooth plates 9 are installed on the lower hanger 2 and at positions corresponding to the two locking gears 8;

[0068] The annular hanging ring 10 cooperates with the C-shaped ring 7, and two clamping and locking components that are mirror-imaged and cooperate with the annular hanging ring 10 are installed between the upper hanging platform 1 and the hook platform 4;

[0069] The clamping and locking components include a clamp 21, a first connecting rod 22 is hinged between the clamp 21 and the hook platform 4, a second connecting rod 23 is hinged between the clamp 21 and the upper hanging platform 1, a clamping block that cooperates with the annular hanging ring 10 is fixedly arranged on the clamp 21, and two clamping and locking components are respectively arranged on both sides of the annular hanging ring 10.

[0070] When the lifting ring 11, the upper hanging platform 1, the lower hanging bracket 2 and the hook platform 4 are in a non-traction state, the two clamps 21 lose their clamping effect on the annular hanging ring 10;

[0071] When the lifting ring 11, the upper lifting platform 1, the lower hanging frame 2 and the hook platform 4 are fully pulled by the equipment on the sea vessel, the first connecting rod 22 and the second connecting rod 23 are connected to the clamp 21, so that the two clamps 21 can be sufficiently close to each other. After the two clamps 21 are sufficiently close to each other, the annular lifting ring 10 is then clamped on both sides. Through the double-sided clamping, the position of the annular lifting ring 10 on the C-shaped ring 7 is effectively limited, thereby effectively improving the safety of the unhooking device in the lifting state;

[0072] When the lifting ring 11, the upper lifting platform 1, the lower hanging bracket 2 and the hook platform 4 are fully pulled by the equipment on the ship, the locking tooth plate 9 is meshed with the locking gear 8 as a whole, and then the layout angle of the C-shaped ring 7 is limited and locked in the lifting state, so that the annular lifting ring 10 is limited on the C-shaped ring 7 and the detachment rate of the annular lifting ring 10 from the C-shaped ring 7 in the lifting state is effectively reduced, thereby helping to improve the safety of the use of the device.

[0073] A winding and hanging mechanism, connected to the annular hanging ring 10 and driving the annular hanging ring 10 to retract and unwind;

[0074] The winding and lifting mechanism includes a hanging tongue 14 and a winding roller 15 rotatably connected to the upper hanging platform 1. A winding motor 16 is installed on the side of the upper hanging platform 1. The output shaft end of the winding motor 16 is fixedly connected to the winding roller 15. A first lifting rope 17 is wound on the winding roller 15. A second lifting rope 18 is sleeved on the hanging tongue 14. A locking bolt 19 is threadedly installed on the hanging tongue 14. The bottom end of the first lifting rope 17 is connected to the hanging tongue 14 through a tension sensor 20, and the other end of the second lifting rope 18 is fixedly connected to the annular hanging ring 10.

[0075] When the unhooking device is not in use, the first sling rope 17 is fully rolled up by the roller 15, thereby effectively reducing the occupied volume of the device and facilitating the flexible deployment of the device;

[0076] By setting the tension sensor 20, the hoisting weight of the unhooking device can be monitored in real time;

[0077] By setting the lock bolt 19, the second hanging rope 18 is effectively restricted on the hanging tongue 14;

[0078] The hook locking component cooperates with the C-shaped ring 7 and locks the annular hanging ring 10 in time;

[0079] The hook locking component includes a clamping plate 24 installed between the rotating shaft 5 and the C-shaped ring 7. A U-shaped clamping hole 25 is fixedly provided on the clamping plate 24. The U-shaped clamping hole 25 is adapted to be clamped with the annular hanging ring 10.

[0080] A pressure clamp 26 is installed on the U-shaped bayonet 25, a pressure bag 27 is installed between the pressure clamp 26 and the clamp plate 24, a ventilation channel 28 is opened inside the rotating shaft 5, and the inner cavity of the pressure bag 27 is connected to the ventilation channel 28, and two mirror-image pressure control components are installed between the lower hanger 2 and the hook platform 4;

[0081] The pressure control assembly includes a vent pipe 29, which is rotatably connected to the ventilation channel 28. Two symmetrically arranged air storage bags 30 are installed between the lower hanger 2 and the hook platform 4. The air storage bags 30 are made of silicone. The inner cavities of the two air storage bags 30 are connected to the vent pipe 29 through a joint.

[0082] A reinforcement component cooperates with the annular hanging ring 10 and reinforces and limits the annular hanging ring 10;

[0083] The monitoring component is used to monitor the three-axis acceleration of the annular hanging ring 10.

[0084] The reinforcement component includes an arc-shaped lock tongue 31, which is slidably connected to the hook platform 4. Two shaft sleeves 32 are provided on the rotating shaft 5. The two shaft sleeves 32 are connected to the arc-shaped lock tongue 31 through a connecting plate. Guide gears 33 are installed on the two shaft sleeves 32. Linkage tooth plates 34 are fixedly installed on the upper hanging platform 1 and corresponding to the positions of the two guide gears 33. The two linkage tooth plates 34 are respectively connected to the two guide gears 33 in transmission. A monitoring component is installed on the arc-shaped lock tongue 31.

[0085] The monitoring component includes a shaking head 35 embedded in the arc-shaped lock tongue 31, a guide tube 36 is fixedly installed on the bottom surface of the shaking head 35, a monitoring rod 37 is slidably connected to the inner wall of the guide tube 36, a clamping spring 38 is sleeved on the monitoring rod 37, and a three-axis acceleration sensor 39 connected to the microcontroller data is installed on the guide tube 36.

[0086] When in use, under the action of the clamping spring 38, the monitoring rod 37 fits tightly against the second lifting rope 18. During lifting, the three-axis acceleration sensor 39 is used to monitor the three-axis acceleration of the second lifting rope 18 in real time, and then assist in determining the shaking amplitude of the second lifting rope 18 in the lifting state. By real-time monitoring of the shaking amplitude of the second lifting rope 18, the lifting state of the device can be monitored in real time.

[0087] As an implementation:

[0088] A method for unhooking an automatic unhooking device based on offshore hoisting, comprising the following steps:

[0089] SS01. Deployment, Before using an automatic unhooking device based on offshore hoisting, the hoisting ring 11 is connected to the hoisting equipment on the seagoing vessel;

[0090] SS02, hoisting, before hoisting, the annular hoisting ring 10 is placed inside the C-shaped ring 7 from the notch of the C-shaped ring 7, and the object to be hoisted is hoisted via the second hoisting rope 18. After the annular hoisting ring 10 is sent into the inside of the C-shaped ring 7, the indexing motor 6 drives the C-shaped ring 7 to rotate the set angle, and then the annular hoisting ring 10 falls into the U-shaped bayonet 25. After the annular hoisting ring 10 falls into the U-shaped bayonet 25, the hoisting equipment on the ship pulls the hoisting ring 11 and makes The upper hanging platform 1, the lower hanging bracket 2 and the hook platform 4 move upward. When the upper hanging platform 1, the lower hanging bracket 2 and the hook platform 4 move upward fully, the two clamps 21 clamp the annular hanging ring 10 from both sides of the annular hanging ring 10, and the gas inside the air storage bag 30 blows into the pressure bag 27, so that the pressure clamp 26 presses the annular hanging ring 10 to limit the position, and the arc-shaped locking tongue 31 is screwed into the inner side of the annular hanging ring 10, thereby limiting the position of the annular hanging ring 10 and improving the bearing strength of the C-shaped ring 7;

[0091] SS03, unhooking. When the hoisted object is transported to the designated load-bearing platform and is effectively carried by the load-bearing platform, the upper hoisting platform 1, the lower hanger 2 and the hook platform 4 lose the pulling force of the heavy object. When the upper hoisting platform 1, the lower hanger 2 and the hook platform 4 are fully moved downward, the gas in the pressure bag 27 flows back to the air storage bag 30, and the arc-shaped locking tongue 31 and the two clamps 21 are reset. Thereafter, the indexing motor 6 drives the C-shaped ring 7 to rotate to the set angle, thereby realizing the automatic disengagement of the annular hanging ring 10.

[0092] The control principle involved in this solution can be summarized into the following key aspects to ensure the clarity and accuracy of the control process:

[0093] Power supply and remote control

[0094] Power supply: The battery 13 is used to provide power to the entire uncoupling device, ensuring the normal operation of all power-using mechanisms (such as motors, sensors, etc.).

[0095] Remote control: The remote central control module receives the central control signal from the external remote central control device, communicates with the microcontroller through data connection, and realizes remote control of whether the unhooking device is unhooked or not.

[0096] Lifting and locking mechanism

[0097] Hoisting process:

[0098] The annular hanging ring 10 is inserted through the gap of the C-shaped ring 7 , and the C-shaped ring 7 is driven to rotate by the indexing motor 6 , so that the annular hanging ring 10 falls into the U-shaped bayonet 25 .

[0099] The lifting device pulls the lifting ring 11, drives the upper hanging platform 1, the lower hanging frame 2 and the hook platform 4 to rise, and ensures a smooth rise through the guide rod 3 and the limit spring 40.

[0100] During the rising process, the clamp 21 clamps the annular hanging ring 10 on both sides through the linkage action of the first connecting rod 22 and the second connecting rod 23, and at the same time, the locking tooth plate 9 engages with the locking gear 8 to lock the layout angle of the C-shaped ring 7.

[0101] Locking and reinforcement:

[0102] The gas in the air storage bag 30 is blown into the pressure bag 27 through the vent pipe 29 and the ventilation flow channel 28, so that the pressing clamp 26 presses the annular hanging ring 10 to achieve position limiting.

[0103] The arc-shaped locking tongue 31 is driven by the linkage tooth plate 34 and the guide gear 33 to be screwed into the inner side of the annular hanging ring 10 , so as to further strengthen the position of the annular hanging ring 10 .

[0104] Monitoring and feedback

[0105] Weight monitoring: The tension sensor 20 monitors the tension of the first hoisting rope 17, that is, the hoisting weight, in real time to ensure the safety of the hoisting process.

[0106] Sway monitoring: The three-axis acceleration sensor 39 in the monitoring component is closely attached to the second hoisting rope 18 through the monitoring rod 37, and monitors the three-axis acceleration during the hoisting process in real time, determines the sway amplitude of the hoisted object, and assists in evaluating the hoisting status.

[0107] Decoupling control

[0108] Unhooking condition: When the hoisted object is transported to the designated load-bearing platform and is effectively loaded, the upper hoisting platform 1, the lower hanger 2 and the hook platform 4 move downward due to the loss of the pulling force of the heavy object.

[0109] Reset and unhook:

[0110] The gas in the pressure bag 27 flows back to the air storage bag 30, and the pressure clamp 26 and the arc-shaped locking tongue 31 are reset, thereby releasing the compression and locking of the annular hanging ring 10.

[0111] The indexing motor 6 drives the C-shaped ring 7 to rotate the set angle again, so that the annular hanging ring 10 is disengaged from the U-shaped bayonet 25, and the unhooking process is completed.

[0112] Safety and emergency response

[0113] Safety detection: During the lifting and unhooking process, the status of each component is monitored in real time through the remote central control module and single-chip microcomputer to ensure stable operation of the system.

[0114] Emergency handling: Preset emergency stop and reset mechanisms to deal with emergencies and ensure the safety of personnel and equipment.

[0115] In summary, this scheme realizes the efficient, safe and reliable operation of the automatic unhooking device for offshore lifting through control principles such as sophisticated power control, remote communication, mechanical linkage, real-time monitoring and intelligent feedback.

[0116] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic unhooking device based on offshore hoisting, comprising an upper hoisting platform (1), a lower hoisting frame (2) and a hook platform (4), characterized in that: Also includes: A group of guide rods (3) installed between the upper hanging platform (1) and the lower hanging bracket (2), each guide rod (3) being provided with a limit spring (40) at a position corresponding to the position between the lower hanging bracket (2) and the hook platform (4); A rotating shaft (5) rotatably connected to the inner surface of the hook platform (4), the rotating shaft (5) being driven by a rotation motor (6), a C-shaped ring (7) being mounted on the rotating shaft (5), two locking gears (8) being mounted on the rotating shaft (5), and locking tooth plates (9) being mounted on the lower hanger (2) at positions corresponding to the two locking gears (8); An annular hanging ring (10) cooperates with the C-shaped ring (7); two clamping and locking components which are arranged in a mirror image and cooperate with the annular hanging ring (10) are installed between the upper hanging platform (1) and the hook platform (4); A winding and hanging mechanism connected to the annular hanging ring (10) and driving the annular hanging ring (10) to retract and unwind; A hook locking component cooperates with the C-shaped ring (7) and locks the annular hanging ring (10) in a timely manner; A reinforcement component cooperates with the annular hanging ring (10) and reinforces and limits the annular hanging ring (10); A monitoring component is used to monitor the three-axis acceleration of the annular hanging ring (10).

2. The automatic unhooking device based on offshore hoisting according to claim 1 is characterized in that: A lifting ring (11), an electric control box (12) and a storage battery (13) are respectively fixedly mounted on the upper hanging platform (1); a remote central control module and a single-chip microcomputer are respectively mounted in the electric control box (12); ports of the storage battery (13) are respectively electrically connected to the remote central control module and the single-chip microcomputer; a data terminal of the remote central control module is connected to data of the single-chip microcomputer.

3. The automatic unhooking device based on offshore hoisting according to claim 1 is characterized in that: The winding mechanism comprises a hanging tongue (14) and a winding roller (15) rotatably connected to an upper hanging platform (1); a winding motor (16) is installed on the side of the upper hanging platform (1); an output shaft end of the winding motor (16) is fixedly connected to the winding roller (15); a first hanging rope (17) is wound on the winding roller (15); a second hanging rope (18) is sleeved on the hanging tongue (14); a locking bolt (19) is threadedly installed on the hanging tongue (14); the bottom end of the first hanging rope (17) is connected to the hanging tongue (14) via a tension sensor (20); and the other end of the second hanging rope (18) is fixedly connected to the annular hanging ring (10).

4. The automatic unhooking device based on offshore hoisting according to claim 1 is characterized in that: A driving gear is fixedly mounted on the output shaft end of the indexing motor (6), and the driving gear is transmission-connected to a locking gear (8).

5. The automatic unhooking device based on offshore hoisting according to claim 1 is characterized in that: The clamping and locking components include a clamp (21), a first connecting rod (22) is hinged between the clamp (21) and the hook platform (4), a second connecting rod (23) is hinged between the clamp (21) and the upper hanging platform (1), a clamping block that cooperates with the annular hanging ring (10) is fixedly arranged on the clamp (21), and the two clamping and locking components are respectively arranged on both sides of the annular hanging ring (10).

6. The automatic unhooking device based on offshore hoisting according to claim 5 is characterized in that: The hook locking component comprises a clamp (24) installed between the rotating shaft (5) and the C-shaped ring (7), a U-shaped clamp (25) is fixedly provided on the clamp (24), the U-shaped clamp (25) is adapted to engage with the annular hanging ring (10), a pressure clamp (26) is installed on the U-shaped clamp (25), a pressure bag (27) is installed between the pressure clamp (26) and the clamp (24), a ventilation channel (28) is provided inside the rotating shaft (5), the inner cavity of the pressure bag (27) is communicated with the ventilation channel (28), and two mirror-image pressure control components are installed between the lower hanger (2) and the hook platform (4).

7. The automatic unhooking device based on offshore hoisting according to claim 6 is characterized in that: The pressure control assembly comprises a vent pipe (29), the vent pipe (29) being rotatably connected to the ventilation flow channel (28), two symmetrically arranged air storage bags (30) being installed between the lower hanger (2) and the hook platform (4), the air storage bags (30) being made of silica gel, the inner cavities of the two air storage bags (30) being connected to the vent pipe (29) via a joint.

8. The automatic unhooking device based on offshore hoisting according to claim 7 is characterized in that: The reinforcing component comprises an arc-shaped locking tongue (31), the arc-shaped locking tongue (31) is slidably connected to the hook platform (4), the rotating sleeve on the rotating shaft (5) is provided with two shaft sleeves (32), the two shaft sleeves (32) are connected to the arc-shaped locking tongue (31) through a connecting plate, the two shaft sleeves (32) are installed with guide gears (33), the upper hanging platform (1) and the positions corresponding to the two guide gears (33) are fixedly installed with linkage tooth plates (34), the two linkage tooth plates (34) are respectively connected to the two guide gears (33) in a transmission manner, and the arc-shaped locking tongue (31) is installed with a monitoring component.

9. The automatic unhooking device based on offshore hoisting according to claim 8, characterized in that: The monitoring component comprises a shaking head (35) embedded in an arc-shaped locking tongue (31), a guide tube (36) being fixedly mounted on the bottom surface of the shaking head (35), a monitoring rod (37) being slidably connected to the inner wall of the guide tube (36), a tightening spring (38) being sleeved on the monitoring rod (37), and a three-axis acceleration sensor (39) connected to the data of the single-chip computer being mounted on the guide tube (36).

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