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Coupled constraint compensation type transfer bridge for offshore personnel or cargo transshipment

A restraint compensation, cargo technology, applied in the direction of cargo handling equipment, transportation and packaging, ships, etc., can solve the problem that the roll and pitch motion of the ship cannot be compensated, so as to reduce the contact area, improve the feasibility, reduce the processing and assembly effect of difficulty

Active Publication Date: 2016-11-30
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese patent with the publication number CN 105408199 A proposes a device and method for providing active motion compensation control of an articulated gangway, which can actively compensate for the distance and orientation between ships or between ships and fixed facilities, but cannot compensate for the distance and orientation of ships. Roll and pitch motion

Method used

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  • Coupled constraint compensation type transfer bridge for offshore personnel or cargo transshipment
  • Coupled constraint compensation type transfer bridge for offshore personnel or cargo transshipment
  • Coupled constraint compensation type transfer bridge for offshore personnel or cargo transshipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] exist figure 1 In the schematic diagram of the coupling-constraint-compensated pick-up bridge for personnel or cargo transfer at sea, the bottom of the coupling-constraint three-degree-of-freedom parallel stable platform 1 is fixed on the deck 4 of the hull, and its upper end passes through the first rotating pair 3 and the four-freedom degree bridge arm 2 connection;

[0034] Such as figure 2 As shown, the bottom of one end of the first bridge arm 2-3 in the four-degree-of-freedom bridge arm is connected with the transfer platform 2-1 through two coaxial third rotating pairs 2-2, and the second linear drive unit 2-12 The two ends are respectively connected to the transfer platform and the upper part of the first bridge arm through ball joints; the second bridge arm 2-5 is connected to the first bridge arm through the third moving pair 2-11, and the third linear drive unit 2-4 One end of the cylinder barrel is fixedly connected to the bottom of the first bridge arm, ...

Embodiment 2

[0038] Such as Figure 8 As shown, the tops of the extension ends of the three long sliders 1-4 are respectively provided with the bases of three coaxial second rotating pairs 1-6 in groups of two, and the six first moving pairs are double guide rail slider guide rail pairs 1-12, the double guide rail slider guide rail pairs are parallel to each other and are all perpendicular to the plane of the mounting base 1-1, the three second moving pairs 1-12 are double guide rail slider guide rail pairs, and the double guide rail slider guide rail pairs are mutually Parallel and perpendicular to the plane of the disk of the mounting seat, the axis direction of the coaxial second rotating pair in groups of two by two is perpendicular to the moving direction of the first and second moving pairs, and the first and second rotating pairs in groups of two by three The axes of the two revolving pairs are arranged in a triangle.

[0039] Such as Figure 9 As shown, the first and second movin...

Embodiment 3

[0042] Such as Figure 10 As shown, the tops of the extension ends of the three long sliders 1-4 are respectively provided with the bases of three coaxial second rotating pairs 1-6 in groups of two, and the six first moving pairs are combined rolling guide rail pairs 1-13 are parallel to each other and are all perpendicular to the plane of the mounting base 1-1, and the three second moving pairs are double guide rail slider guide rail pairs 1-12, and the double guide rail slider guide rail pairs are parallel to each other and are all perpendicular to the mounting base 1 The plane of -1, the axis direction of the coaxial second rotating pair in groups of two by two is perpendicular to the moving direction of the first and second moving pairs, and the axes of three second rotating pairs in groups of two by two are arranged in a triangle .

[0043] Such as Figure 11 As shown, the first moving pair is a combined rolling guide rail pair 1-13; the combined rolling guide rail pair...

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Abstract

A coupled constraint compensation type transfer bridge for offshore personnel or cargo transshipment comprises a coupled constraint three-freedom-degree parallel stable platform and a four-freedom-degree bridge arm, wherein the bottom of the coupled constraint three-freedom-degree parallel stable platform is fixed to a deck of a ship, and the upper end of the coupled constraint three-freedom-degree parallel stable platform is connected with the four-freedom-degree bridge arm through a first rotary pair; the four-freedom-degree bridge arm can rotate around the axis of the first rotary pair and achieve lifting and descending of a first bridge arm and retractable movement of a second bridge arm and a third bridge arm. The ship can move by multiple freedom degrees under the action of ocean current, sea breeze and sea wave so as to affect safe transshipment of personnel or cargos on the ship. The three-freedom-degree parallel stable platform can compensate horizontal swing, longitudinal swing and heaving of the ship to enable the four-freedom-degree bridge arm to be stable relative to a fixed reference object on the ground, and then safe transshipment of offshore personnel or cargos are guaranteed. The coupled constraint compensation type transfer bridge is compact in structure, small in occupied area and high in rigidity and has great application prospects.

Description

technical field [0001] The invention belongs to the field of marine engineering equipment, and in particular relates to a series-parallel hybrid mechanism, in particular to a pick-up bridge for sea transfer. Background technique [0002] "Made in China "2025"" proposes to vigorously develop deep-sea exploration, resource development and utilization, offshore operation support equipment and its key systems and special equipment, etc., to meet the needs of economic and social development and national defense construction for major technical equipment. With the development of my country's marine economy, there are more and more various offshore hoisting operations, search and rescue ships, and coast guard ships. Under the influence of ocean environment disturbances such as sea wind, waves and currents, ships will produce multi-dimensional swaying motions, such as roll, pitch, yaw, sway, surge and heave. Among them, rolling, pitching and heaving motions have the greatest impact...

Claims

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Application Information

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IPC IPC(8): B63B27/14
CPCB63B27/14B63B2027/141
Inventor 赵铁石李二伟胡强强杨勇王唱边辉
Owner YANSHAN UNIV
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