Stern slipway type work boat launching and restoring device

Abstract

The invention belongs to the field of auxiliary equipment of ships and relates to a work boat launching and restoring device, in particular to a stern slipway type work boat launching and restoring device. The stern slipway type work boat launching and restoring device comprises a chute which is obliquely and downwardly arranged on a stern portion of a ship body, the tail end of the chute is movably connected with a stern door, a traction device is arranged on the two sidewalls of the chute, a traction slipway assembly matched with a line type of the work boat is arranged in the chute along the oblique direction of the chute, and a stern door slipway matched with the traction slipway assembly is arranged on the stern door. By arranging the chute on the stern portion and the stern door matched with the chute, a passageway allowing the work boat to go in and go out of the ship body is formed; the traction device arranged on the chute is used for providing power for the work boat to go in / go out; the stern slipway type work boat launching and restoring device is simple in structure, highly reliable, capable of working in severe sea conditions or sailing processes of a mother ship and free from potential safety hazards.

Description

Technical field [0001] The invention belongs to the field of ship auxiliary equipment, and relates to a working boat retracting device, in particular to a stern slide type working boat retracting device. Background technique [0002] When large ships are navigating at sea, in order to make up for the inability of large ships to perform tasks in shallow waters or narrow waters due to low speed and large hulls, it is generally necessary to equip the ships with 1 to 2 high-speed offshore vessels. Small boats are used as work boats to cope with the above shortcomings. [0003] At present, domestic work boats generally use winches for retraction and unwinding. The work boats are hoisted by wire ropes for retraction and unwinding. The work boats are lifted and lowered by winches. The winches generally include motors, couplings, reduction gearboxes, drums, and motors. The gearbox device is connected with the gearbox device through the coupling, the gearbox device and the reel are connect...

AI Technical Summary

Problems solved by technology

[0004] Although the use of the winch can realize the retraction of the working boat, it has the following disadvantages in the retraction process: (1) the retraction speed is slow, and it needs to be carried out slowly to achieve stable retraction. Cause damage to the hull of the working boat; (2) The operation is troublesome. When retracting and retracting, the hull needs to be fixed in multiple directions before it can be retracted. Generally, at least 4 directions need to be fixed; (3 ) has many restrictions on retraction and deployment. In high sea conditions or when the mother ship is sailing, the workboat cannot be retracted. When the workboat is retracted, it is best to be in the condition of no wind. Once high sea conditions and other conditions occur, It is impossible to realize the retraction and release of the working boat

(4) There is a great potential safety hazard. If the motor loses power during the retraction process and the brake device locks the motor, the operation of retracting and releasing the working boat cannot be realized. If the brake device is forcibly opened by the manual device, the working boat will form a free fall The state drops, and its lowering speed cannot be controlled, and the working boat cannot be effectively controlled, which will cause harm to the working boat and the staff

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