Device for contracting and releasing positioning block of beacon vessel

Abstract

The invention relates to a device for contracting and releasing a positioning block of a beacon vessel. The device comprises a hydraulic electric controlling station, wherein a frame and a movable bracket are arranged at two ends of the hydraulic electric controlling station symmetrically; a rack is arranged on the frame; a first hydraulic actuating mechanism is mounted on the movable bracket; a first gear is mounted at the output end of the first hydraulic actuating mechanism; a moving mechanism is mounted on one side of the movable bracket; the moving mechanism comprises a rotor shaft movably connected with the movable bracket; a second gear and a third gear are mounted on the rotor shaft; the second gear is engaged with the first gear to drive the third gear to move on the rack; a twisting strut is penetrated in the movable bracket; a turnover opening / closing mechanism is sleeved on the twisting strut; and link mechanisms are hinged at two ends of the twisting strut and are connected with a piston rod of a second hydraulic actuating mechanism. According to the invention, the positioning block is lifted and fixed by utilizing the two groups of the hydraulic actuating mechanisms and a traction winch in a mutual matching manner, so that the device can be lifted, contracted and released mechanically. Therefore, the time and the labor force are saved.

Description

technical field [0001] The invention relates to the field, in particular to a positioning block retractable device for a navigation mark ship. Background technique [0002] Navigation mark measurement is an important part of the national maritime safety guarantee system, and navigation mark ships are indispensable and important facilities to ensure the safety, efficiency and smoothness of maritime transportation. [0003] The type of navigation buoy ship currently in service in my country is a traditional ship type, and this type of ship can basically complete ordinary light buoy operations. The existing ship positioning block release device uses a small deck crane to release sideways or aft, but the positioning block release device of this structure has the following disadvantages: [0004] (1) In the buoy operation, the degree of mechanization is low, such as drag chains, buoy displacement, abandoning chains and other auxiliary tasks are all done manually, which is time-c...

AI Technical Summary

Problems solved by technology

[0004] (1) In the buoy operation, the degree of mechanization is low, such as drag chains, buoy displacement, abandoning chains and other auxiliary tasks are all done manually, which is time-consuming and labor-intensive, not only labor-intensive, but also has great potential safety hazards

[0005] (2) The lifting capacity of the deck crane is limited, the weight of the positioning block reaches 8 tons, and the speed is slow when releasing the positioning block, resulting in poor positioning accuracy

[0006] (3) The positioning block retraction method is backward, and the retraction and retraction of the positioning block needs to be completed by manual operation, which is labor-intensive, and due to the joint action of wind, waves, and airflow when the beacon ship is operating at sea, it is easy to deviate Its initial positioning position, which requires fast and accurate release of the positioning block, and minimizes the impact on the stability of the navigation mark ship

[0007] (4) Navigation mark ships and light buoys sway and heave violently and at different frequencies on the sea surface, which can easily cause collisions of hulls and pose potential safety hazards

[0008] (5) When the buoy is advancing at a low speed and approaching the buoy, the hull and the buoy are in their respective heave and swing motions, and the operator needs to accurately grasp the timing to jump the buoy. Once the timing is missed, the buoy needs to leave and dock again , low work efficiency

[0009] (6) The positioning block retractable device is installed on the side of the navigation mark ship, resulting in poor stability of the hull

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