A navigation mark recovery and hoisting device and method

Abstract

The present invention provides a navigation mark recovery and hoisting device and method, comprising a bracket and a clamping arm, a lifting gantry, a gantry flipping mechanism, and a bracket lifting and flipping mechanism. The lifting gantry comprises a column, a base, a circular track, and a traveling crane. The bottom of the column is hinged to the base, and a circular track is installed on the top. The traveling crane moves along the circular track. The gantry flipping mechanism is installed on the base, and the end of the telescopic rod is connected to the column. The bracket lifting and flipping mechanism comprises a connecting beam, a telescopic guide rail, a lifting cylinder, and a bracket flipping cylinder. The telescopic guide rail is symmetrically arranged on the hull. The bottom of the bracket is hinged to the connecting beam, and the two ends of the connecting beam are connected to the inner sleeve of the telescopic guide rail. The lifting cylinder is fixed to the outer sleeve, and the end of the telescopic rod is connected to the inner sleeve. The bracket flipping cylinder is fixed to the connecting beam, and the end of the telescopic rod is connected to the bottom of the bracket. The present invention solves the problems of automatic recovery and lifting and discharging of navigation marks, and realizes the non-drop hooking or maintenance operation of the navigation mark on the deck.

Description

Technical Field

[0001] The present invention belongs to the technical field of floating body recovery, and in particular relates to a navigation mark recovery and hoisting device and method. Background Art

[0002] During navigation mark recovery operations, personnel typically need to loop a rope around the side of an open-air deck without guardrails or hook the mark with a long hook. For large-diameter marks, personnel sometimes even need to jump directly onto the mark or approach it from a small boat, then secure the hook to the mark and finally hoist the mark onto the vessel using a crane. These operations are difficult to operate in high sea conditions, have a low degree of mechanization, are time-consuming, and pose a high risk. To address these issues, several new navigation aid recovery devices have been developed in recent years, including L-arm and bracket recovery devices, navigation aid catching fork devices, and clamping magnetic devices. However, the L-arm and bracket recovery devices require the bracket to be moved up and down along a channel-shaped rail under the control of a winch. This not only complicates the operation process, but the fixed rail length is affected by the ship's draft and the curvature of the shell plating, making it impractical for navigation aid vessels with shallow drafts. Furthermore, the fixed rail extends deep underwater, increasing the ship's resistance and thus reducing its speed. Furthermore, prolonged submersion in water can lead to the attachment of marine growth, causing the bracket to slip and become stuck in the rail, making maintenance difficult. Furthermore, the automatic hooking and lifting of the navigation aid is not possible. The navigation aid catching fork device is typically installed at the bow of the vessel, making it suitable only for low sea conditions. It occupies more deck space when stowed and does not allow for automatic hooking and lifting of the navigation aid. The clamping magnetic device can be installed in a position suitable for high sea conditions and can automatically capture the navigation aid, but it still does not allow for automatic hooking and lifting of the navigation aid. Therefore, the existing buoy recovery devices have their own advantages and disadvantages, but the common problem is that they do not realize the automatic hooking and lifting of the buoy. They only realize the automatic capture of the buoy, and still rely on manpower to realize the hooking operation, which makes the buoy operation still dangerous under high sea conditions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a navigation mark recovery and lifting device and method in response to the above-mentioned problems, so as to realize the highly mechanical and automated capture, lifting, hooking and recovery of offshore navigation marks and minimize the overall resource occupation and overall performance impact of equipment loading on the mother ship, ensure the safety of operators and equipment under high sea conditions, reduce the difficulty of operation, and improve the efficiency of recovery operations and the economy of ship use.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a navigation mark recovery and lifting device, including a bracket and a clamping arm, characterized in that it also includes a lifting gantry, a gantry flipping mechanism and a bracket lifting and flipping mechanism, the lifting gantry includes a column, a base, a circular track and a traveling crane, the bottom of the column is hinged to the base, the top is provided with the circular track, the traveling crane moves along the circular track, the gantry flipping mechanism is a gantry flipping oil cylinder, which is installed on the base, and the end of the telescopic rod is connected to the column to drive The column rotates, and the bracket lifting and flipping mechanism includes a connecting beam, a telescopic guide rail, a lifting cylinder and a bracket flipping cylinder. The telescopic guide rail is symmetrically arranged on the hull, and the outer sleeve of the telescopic guide rail is fixed to the hull. The bottom of the bracket is hinged to the connecting beam, and the two end heads of the connecting beam are connected to the inner sleeve of the telescopic guide rail. The lifting cylinder is fixed on the outer sleeve, and the end head of the telescopic rod is connected to the inner sleeve. The bracket flipping cylinder is fixed on the connecting beam, and the end head of the telescopic rod is connected to the bottom of the bracket.

[0005] According to the above scheme, the base is installed on the hull deck through a deck track moving mechanism. The deck track moving mechanism includes a slide rail assembly and a driving mechanism. The slide rail assembly is laid on the hull deck, the base matches the slide rail, and the driving mechanism drives the base to move along the slide rail.

[0006] According to the above solution, the slide rail assembly is a chain transmission mechanism, the driving mechanism is a rotary motor, the rotary motor is connected to the chain transmission mechanism, and the base is fixed on the chain.

[0007] According to the above solution, the slide rail assembly is a gear rack transmission mechanism, the driving mechanism is a rotary motor, the rotary motor is connected to the gear shaft, the base is connected to the gear through a bearing, and the gear moves along the rack.

[0008] According to the above solution, the overhead crane is equipped with a coiled steel wire rope, and the free end of the steel wire rope is connected to an automatic hook.

[0009] According to the above solution, an angle limiter is provided between the bracket and the connecting beam.

[0010] According to the above solution, mechanical or electrical limiters are provided at the maximum travel of the telescopic guide rail and deck rail moving mechanism.

[0011] A method for recovering and hoisting a navigation mark, characterized by comprising the following steps:

[0012] S1) When the ship sails to the sea area near the navigation mark, the lifting cylinder is used to extend the telescopic guide rail downward, driving the connecting beam to move downward, and then driving the bracket to move downward until it reaches a certain depth underwater;

[0013] S2) Using the bracket tilting cylinder, tilt the bracket from the inside to the outside against the outer plate until it is horizontal;

[0014] S3) The clamping arm extends outward and expands, the vessel is maneuvered forward to approach the navigation mark, and the clamping arm is rotated to close and capture the navigation mark, controlling the navigation mark within the arm bend and pulling the navigation mark close to the fork of the bracket;

[0015] S4) The lifting cylinder lifts the telescopic guide rail, driving the connecting beam and bracket to move upward along the telescopic guide rail, lifting the buoy out of the water until the upper surface of the buoy approaches or exceeds the deck surface, preparing for the subsequent automatic lifting and transfer of the buoy;

[0016] S5) adjusting the position of the mobile crane along the circular track on the top of the lifting gantry according to the position of the navigation buoy lifting lug, moving the automatic hook to above the navigation buoy lifting lug, remotely controlling the mobile crane to lower the automatic hook, and make the automatic hook contact the navigation buoy lifting lug, and the automatic hook is locked;

[0017] S6) The clamping arm is extended outward, and the overhead crane retracts the wire rope to lift the navigation mark. After the navigation mark is lifted, the position of the overhead crane on the top circular track can be appropriately adjusted during the lifting process to avoid the navigation mark from colliding with the lifting gantry or the hull structure. When the navigation mark is higher than the deck surface as a whole, the lifting gantry can be moved by the deck track moving mechanism or rotated by the gantry tilting cylinder, so that the navigation mark can be smoothly and automatically lifted onto the ship. The navigation mark can also be freely transferred and stored on the deck surface with the help of other engineering cranes or winches on the deck;

[0018] S7) After the navigation mark is hoisted, the telescopic guide rail is fully retracted by the lifting cylinder, driving the bracket to be lifted to a certain height above the water surface, and the bracket is rotated against the outer plate by the bracket turning cylinder. The crane fully retracts the wire rope and automatic hook, moves them to the predetermined position and locks them, and the gantry turning cylinder is used to operate the lifting gantry to rotate to the preset angle for storage, without extending beyond the side.

[0019] The beneficial effects of the present invention are: providing a navigation mark recovery and lifting device and method, realizing the full process automatic recovery of navigation mark capture, lifting, hooking and transportation, and improving the efficiency of navigation mark capture operation; personnel on the deck can perform safe operations of automatic hooking or maintenance and repair of navigation marks without drop remote control, so that personnel do not need to manually jump the mark or manually pull the mark to hook, making the personnel hooking operation under high sea conditions simple and safe, improving the operating safety of operators and reducing the difficulty of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of an embodiment of the present invention.

[0021] Figure 2 This is a side view of a device in a storage state according to an embodiment of the present invention.

[0022] Figure 3 This is a top view of a device in a storage state according to an embodiment of the present invention.

[0023] Figure 4a 、 4b 4c, 4d, 4e, and 4f are schematic diagrams of the process of recovering and hoisting a navigation mark according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] For a better understanding of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-Figure 3 As shown, a navigation mark recovery and lifting device includes a bracket 1 and a clamping arm 2, as well as a lifting gantry, a gantry flipping mechanism and a bracket lifting and flipping mechanism. The lifting gantry includes a column 3, a base 4, a circular track 5 and a traveling crane 6. The bottom of the column is hinged to the base, and a circular track is installed on the top, and the traveling crane moves along the circular track; the gantry flipping mechanism is a gantry flipping cylinder 7, which is installed on the base, and the end of the telescopic rod is connected to the column to drive the column to rotate; the bracket lifting and flipping mechanism includes a connecting beam 8, a telescopic guide rail 9, a lifting cylinder 10 and a bracket flipping cylinder 11. The telescopic guide rail is symmetrically arranged on the hull, and the outer sleeve of the telescopic guide rail is fixed to the hull. The bottom of the bracket is hinged to the connecting beam, and the two end heads of the connecting beam are connected to the inner sleeve of the telescopic guide rail. The lifting cylinder is fixed on the outer sleeve, and the end head of the telescopic rod is connected to the inner sleeve. The bracket flipping cylinder is fixed on the connecting beam, and the end head of the telescopic rod is connected to the bottom of the bracket. When the device is arranged at the stern of a ship, the navigation mark can be directly captured by the ship's reverse operation. It can also be arranged at the side or stern of a ship and used in conjunction with other capture devices such as a clamping arm.

[0026] The bracket is controlled to move up and down by a hydraulic multi-stage telescopic guide rail, with a high degree of mechanical automation. The length of the telescopic guide rail is not easily affected by the depth of the ship. Compared with the longer fixed guide rail, it is more suitable for installation on various large, medium and small buoy ships. The telescopic guide rail is set on the water surface, which does not affect the speed and is not easily affected by the attachment of marine organisms and seawater corrosion. The later maintenance of the equipment is more convenient and the maintenance cost is lower.

[0027] The equipment composition of the lifting and flipping bracket is relatively compact, with a small storage volume on the side. The telescopic guide rail and bracket are stored against the outer plate of the ship, do not occupy the deck working area, and have a light weight. In addition, the buoy of the hoisted navigation mark has been out of the water, so the load borne by the lifting gantry when lifting the navigation mark is relatively small. Therefore, the lifting gantry has a light weight and occupies a small area on the deck, making the full set of equipment more adaptable and economical.

[0028] The base is installed on the hull deck through a deck track moving mechanism. The deck track moving mechanism includes a slide rail assembly 12 and a driving mechanism. The slide rail is laid on the hull deck, the base matches the slide rail, and the driving mechanism drives the base to move along the slide rail.

[0029] The slide rail is a chain transmission mechanism, the driving mechanism is a rotary motor, the rotary motor is connected to the chain transmission mechanism, and the base is fixed on the chain.

[0030] The slide rail is a gear rack transmission mechanism, the driving mechanism is a rotary motor, the rotary motor is connected to the gear shaft, the base is connected to the gear through a bearing, and the gear moves along the rack.

[0031] The wire rope 13 is wound up on the overhead crane, and the free end of the wire rope is connected to the automatic hook 14, which is convenient for the subsequent automatic hooking and automatic lifting and transportation operations of the navigation mark.

[0032] An angle limiter is provided between the bracket and the connecting beam; a mechanical or electrical limiter is provided at the maximum stroke of the telescopic guide rail and the deck track moving mechanism.

[0033] The power source of the device of the present invention can be provided by the mother ship hydraulic pump station or the self-carrying hydraulic pump station, and its electronic control part mainly consists of an integrated control box, a local control console and a remote controller or a remote control panel (optional).

[0034] Telescopic rails, brackets, lifting gantry, base, deck rail moving mechanism, automatic hooks, connecting beams and other components should be made of high-strength steel. The selection of its safe working load can ensure that the buoy can be safely captured in high sea conditions and can withstand collisions with the buoy and impacts from wind and waves.

[0035] The wire rope should be of high quality and should be oiled for protection on a daily basis.

[0036] The bracket fork is provided with anti-collision materials such as polyurethane or rubber fenders.

[0037] Non-metallic fenders should be provided on the outer plate on both sides and in the middle of the device to prevent the telescopic rails, brackets and other components from colliding with the berthing dock or vessel.

[0038] The two telescopic guide rails used for retracting and extending the bracket, the circular rails on the top of the lifting gantry, and the guide rail surfaces of the deck rail moving mechanism on both sides of the lifting gantry should be kept in the same plane and be flat and smooth. The surface can be hardened by nickel-chromium plating to reduce deformation.

[0039] Appropriate anti-corrosion, anti-fouling and anti-marine growth measures must be taken on the clamping arm, bracket and telescopic guide rail, such as painting, covering with non-metallic materials, etc. The telescopic guide rail can also be considered to use stainless steel, and measures such as adding bushings or protective covers can also be considered for protection.

[0040] When the entire device is deployed at the stern, the navigation mark can be captured and recovered by reversing the ship. When the device is deployed at the side or stern, it can also be used in conjunction with other capture devices such as clamping arms installed on the outer plate to capture the navigation mark at the same time.

[0041] When the device is used in conjunction with the clamping arm, the specific operation process of capturing and recovering the beacon is as follows (see Figures 4a-4f ):

[0042] (1) When the ship sails to the sea area near navigation mark 15, the telescopic guide rail is extended downward by the lifting cylinder, driving the connecting beam to move downward, and then driving the bracket to move downward until it reaches a certain depth underwater;

[0043] (2) Use the bracket tilting cylinder to tilt the bracket from the inside to the outside against the outer plate until it is horizontal;

[0044] (3) The clamping arm extends outward and unfolds, the ship is maneuvered forward to approach the navigation mark, and the clamping arm is rotated to close and capture the navigation mark, the navigation mark is controlled within the arm bend, and the navigation mark is pulled close to the fork of the bracket;

[0045] (4) The lifting cylinder lifts the telescopic guide rail, driving the connecting beam and bracket to move upward along the telescopic guide rail, lifting the buoy out of the water until the upper surface of the buoy approaches or exceeds the deck surface, preparing for the subsequent automatic lifting and transfer of the buoy;

[0046] (5) According to the position of the navigation buoy lug, adjust the position of the mobile crane along the circular track on the top of the lifting gantry, move the automatic hook to the top of the navigation buoy lug, remotely control the mobile crane to lower the automatic hook, and make the automatic hook contact the navigation buoy lug, and the automatic hook is locked;

[0047] (6) The clamping arm is extended outward, and the crane retracts the wire rope to lift the navigation mark. After the navigation mark is lifted, the position of the crane on the top circular track can be appropriately adjusted during the lifting process to avoid the navigation mark from colliding with the lifting gantry or the hull structure. When the navigation mark is higher than the deck surface as a whole, the lifting gantry can be moved by the deck track moving mechanism or rotated by the gantry turning cylinder, so that the navigation mark can be automatically lifted onto the ship smoothly. The navigation mark can also be freely transferred and stored on the deck surface with the help of other engineering cranes or winches on the deck;

[0048] (7) After the navigation mark is hoisted, the telescopic guide rail is fully retracted by the lifting cylinder, driving the bracket to be lifted to a certain height above the water surface, and the bracket is rotated to lean against the outer plate of the ship by the bracket turning cylinder. The crane fully retracts the wire rope and the automatic hook, moves them to the predetermined position and locks them, and the gantry turning cylinder is used to operate the lifting gantry to rotate to the preset angle for storage, without extending beyond the side.

[0049] For ships with a larger draft, if the forks of the bracket are folded down and leaned against the outer plate when stored, the bracket can be flipped from bottom to top to a horizontal position using the bracket flip cylinder during operation. This can not only support the navigation mark to be raised and lowered, but also prevent the forks of the bracket from colliding with the navigation mark during capture.

[0050] When the device is deployed at the stern, the specific operation process of capturing and recovering the buoy is as follows:

[0051] (1) Maneuver the vessel forward to approach the navigation mark and adjust the stern to face the navigation mark.

[0052] (2) Use the lifting cylinder to extend the telescopic guide rail downward, driving the connecting beam to move downward, and then driving the bracket to move downward until it reaches a certain depth underwater;

[0053] (3) Use the bracket tilting cylinder to tilt the bracket from the inside to the outside against the outer plate until it is horizontal;

[0054] (4) Maneuver the vessel astern, gradually approaching the navigation mark until the navigation mark is above the fork of the bracket;

[0055] (5) The lifting cylinder lifts the telescopic guide rail, driving the connecting beam and bracket to move upward along the telescopic guide rail, lifting the buoy out of the water until the upper surface of the buoy approaches or exceeds the deck surface, preparing for the subsequent automatic lifting and transfer of the buoy;

[0056] (6) According to the position of the navigation buoy lug, adjust the position of the mobile crane along the circular track on the top of the lifting gantry, move the automatic hook to the top of the navigation buoy lug, remotely control the mobile crane to lower the automatic hook, and make the automatic hook contact the navigation buoy lug, and the automatic hook is locked;

[0057] (7) The crane retracts the wire rope to lift the navigation mark. After the navigation mark is lifted, the position of the crane on the top circular track can be appropriately adjusted during the lifting process to avoid the navigation mark from colliding with the lifting gantry or the hull structure. When the navigation mark is higher than the deck surface as a whole, the lifting gantry can be moved by the deck track moving mechanism or rotated by the gantry turning cylinder, so that the navigation mark can be automatically lifted onto the ship smoothly. The navigation mark can also be freely transferred and stored on the deck surface with the help of other engineering cranes or winches on the deck;

[0058] (8) After the navigation mark is hoisted, the telescopic guide rail is fully retracted by the lifting cylinder, driving the bracket to be lifted to a certain height above the water surface, and the bracket is rotated to lean against the outer plate of the ship by the bracket turning cylinder. The crane fully retracts the wire rope and the automatic hook, moves them to the predetermined position and locks them, and the gantry turning cylinder is used to operate the lifting gantry to rotate to the preset angle for storage, without extending beyond the side.

Claims

1. A navigation mark recovery and lifting device, comprising a bracket and a clamping arm, characterized in that: The gantry crane is installed on the gantry bottom and the gantry bottom is hinged to the base, and the annular track is installed on the top. The traveling crane moves along the annular track. The gantry crane is an oil cylinder for gantry flipping, which is installed on the base. The end of the telescopic rod is connected to the gantry to drive the column to rotate. The gantry crane is installed on the gantry bottom and the gantry bottom is hinged to the base. The end of the telescopic rod is connected to the gantry to drive the column to rotate. The gantry crane is installed on the gantry bottom and the gantry bottom is hinged to the base. The end of the telescopic rod is connected to the gantry to drive the column to rotate. The gantry crane is installed on the gantry The inner sleeve of the rail is connected, the lifting cylinder is fixed on the outer sleeve, the end of the telescopic rod is connected to the inner sleeve, the bracket flip cylinder is fixed on the connecting beam, and the end of the telescopic rod is connected to the bottom of the bracket; the base is installed on the hull deck through the deck track moving mechanism, and the deck track moving mechanism includes a slide rail assembly and a driving mechanism, the slide rail assembly is laid on the hull deck, the base is matched with the slide rail, and the driving mechanism drives the base to move along the slide rail; the slide rail assembly is a gear rack transmission mechanism, and the driving mechanism is a rotary motor, the rotary motor is connected to the gear shaft, the base is connected to the gear through a bearing, and the gear moves along the rack.

2. A navigation mark recovery and hoisting device according to claim 1, characterized in that: The slide rail assembly is a chain transmission mechanism, the driving mechanism is a rotary motor, the rotary motor is connected to the chain transmission mechanism, and the base is fixed on the chain.

3. A navigation mark recovery and hoisting device according to claim 1 or 2, characterized in that: The overhead crane is equipped with a coiled steel wire rope, and the free end of the steel wire rope is connected to an automatic hook.

4. A navigation mark recovery and hoisting device according to claim 1 or 2, characterized in that: An angle limiter is provided between the bracket and the connecting beam.

5. The navigation mark recovery and hoisting device according to claim 4, characterized in that: Mechanical or electrical limiters are provided at the maximum travel positions of the telescopic guide rail and deck rail moving mechanism.

6. A method for hoisting a navigation mark recovery hoisting device according to claim 1, characterized in that: The steps include: S1) When the ship sails to the sea area near the navigation mark, the lifting cylinder is used to extend the telescopic guide rail downward, driving the connecting beam to move downward, and then driving the bracket to move downward until it reaches a certain depth underwater; S2) Use the bracket tilting cylinder to tilt the bracket from the inside to the outside against the outer plate until it is horizontal; S3) The gripping arms extend outward and expand, the vessel is maneuvered forward to approach the navigation mark, and the gripping arms are rotated to close and capture the navigation mark, controlling the navigation mark within the arms and pulling the navigation mark close to the fork of the bracket; S4) The lifting cylinder raises the telescopic guide rail, driving the connecting beam and bracket to move upward along the telescopic guide rail, lifting the buoy's buoy out of the water until the upper surface of the buoy approaches or exceeds the deck surface, preparing for the subsequent automatic lifting and transfer of the buoy; S5) Adjust the position of the mobile crane along the circular track on the top of the lifting gantry according to the position of the navigation buoy lifting lug, move the automatic hook to the top of the navigation buoy lifting lug, and remotely control the mobile crane to lower the automatic hook and make it contact with the navigation buoy lifting lug, and the automatic hook is locked; S6) The clamping arm is extended outward, and the crane retracts the wire rope to lift the navigation mark. After the navigation mark is lifted, the position of the crane on the top circular track can be appropriately adjusted during the lifting process to prevent the navigation mark from colliding with the lifting gantry or the hull structure. When the navigation mark is higher than the deck surface, the lifting gantry can be moved by the deck track moving mechanism or rotated by the gantry tilting cylinder. Both of these can allow the navigation mark to be smoothly and automatically lifted onto the ship. The navigation mark can also be freely transferred and stored on the deck surface with the help of other engineering cranes on the deck. S7) After the navigation mark is hoisted, the telescopic guide rail is fully retracted by the lifting cylinder, driving the bracket to be lifted out of the water to a certain height, and the bracket is rotated against the outer plate by the bracket tilting cylinder. The crane fully retracts the wire rope and automatic hook, moves them to the predetermined position and locks them, and the gantry tilting cylinder is used to operate the lifting gantry to rotate to the preset angle for storage, without extending beyond the side.

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