Five-degree-of-freedom metamorphic multi-purpose ship berthing device

Abstract

The invention discloses a five-degree-of-freedom metamorphic multipurpose ship berthing device, which comprises a mounting seat, a parallel berthing bracket, an elliptical suction cup seat, a magnetic suction cup and an electromagnetic brake. When berthing, the parallel berthing bracket drives the elliptical suction cup seat, and the magnetic suction cup protrudes from the hull. After the power is turned on, the electromagnetic force generated by the magnetic suction cup connects the hull of the main ship with the wharf or other hulls to realize mooring; The magnetic sucker is powered off, and the parallel docking bracket drives the elliptical magnetic sucker to recover and retract into the hull. The three telescopic cylinders in the parallel berthing support adopt double-acting air cylinders or double-acting hydraulic cylinders. In addition to connecting support and telescopic functions, they also have two-way pressure maintaining and vibration reduction functions. Through multi-point arrangement, multi-point stable mooring can be realized, which greatly reduces the impact force on docks, offshore platforms or other ships during berthing, and ensures the safety of berthing. The invention also has the advantages of simple structure, high safety, good stability, easy operation and maintenance, and the like.

Description

technical field [0001] The invention belongs to the technical field of marine equipment, and particularly relates to a five-degree-of-freedom metamorphic multi-purpose ship berthing device. Background technique [0002] At present, most of the small and medium-sized ships are moored by manual operation of fixed cables by multiple people when they dock or leave the dock, offshore platform or other large ships. When berthing at the port, the impact force generated by the docking of the ship, the mooring force generated by the offshore wind after the ship is berthed, and the ship squeezing force generated by the onshore wind are three common dock dynamic loads. The impact of force on high-piled wharfs and deep-water open wharfs is particularly significant, and is the main reason for the frequent occurrence of berthing safety hazards. During the operation and production of offshore platforms in the petroleum industry, ships need to berth at offshore platforms or wellheads to ca...

AI Technical Summary

Problems solved by technology

When a ship is berthing an offshore platform or wellhead, the mooring personnel need to frequently jump and fix the cables between the ship and the platform. The berthing operation brings major safety hazards to the operators

The artificial cable mooring method has the following disadvantages: (1) It requires multiple people to operate at the same time, which is time-consuming and laborious; (2) The location of the ship's berthing is not accurate enough, and friction between the hull and the wharf, offshore platform or other ships often occurs; (3) The ship Poor stability after docking, especially when high-speed passenger ships or mooring at sea, the lateral swing is relatively large, which affects the safety and comfort of people getting on and off the ship

But there are many defects in using waste tires as the anti-collision decompression device: (1) when the ship is berthed, because the ships are still in motion, and the waste tires are fixed, the waste tires are only used when the ships are close to the shore. To protect the effect, the impact of the ship on the tire is very large, and there will be greater friction between the waste tire and the ship, which will still cause damage to the ship's surface; (2) the tire is fixed and plays a role in the rapid docking of the ship The protective effect is limited, especially under the action of strong transverse wind, when the ship docks too fast, the existing fixed protective device often cannot effectively protect the hull and the pile platform in front; (3) The appearance of waste tires is ugly, affecting the water landscape, And it is easy to fall into the water and cause water pollution

The Chinese utility model patent with the application number of 200820007920.6 discloses a magnetic mooring device for ships, which includes a magnetic suction cup, an elastic shock absorber and a hoist. Mooring has a certain auxiliary vibration reduction effect, but the mooring device is fixed outside the hull and cannot expand and contract independently. After unmooring, it will affect the navigation of the ship, and the mooring operation still requires winches and steel cables, which has poor stability

The Chinese invention patent with the application number 201310045188.7 discloses a suspension and folding berthing device, which includes a support part and a retractable device rotatably connected to an offshore platform, and is operated by a winch and a pull rope. The mooring stability of this technical solution is and poor vibration damping

The Chinese invention patent with application number 201380030009.0 discloses a mooring device for mooring ships, including a base, a movable arm structure supported by the base, and a magnet mounted in a frame, which is connected to the frame by a leaf spring On the beam, it has a certain vibration damping effect, but the vibration damping direction of the structure is single

The Chinese invention patent with the application number 201410467461.X discloses a multi-purpose ship berthing device, which includes one or more double-acting single-piston oil cylinders arranged in the hull, and an electromagnet is fixed on the outer end of the piston rod. The front end of the mast is equipped with a two-stage decompression and slow pulling device. This berthing device can only achieve vibration reduction in one direction, and it has more constraints on the hull and is less safe.

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