A Parallel Stable Receiving Platform with Double-Driven Cross-Folding Branches

Abstract

The invention relates to a stable parallel cargo receiving platform with dual-drive crossed and folded branches. The stable parallel cargo receiving platform comprises a base, an upper platform body, energy storage assemblies and the three identical dual-drive crossed and folded branches for connecting the base and the upper platform body. Each dual-drive crossed and folded branch is mainly composed of U-shaped connecting rods, frame-type connecting rods and linear drivers. By controlling the linear drivers of the dual-drive crossed and folded branches, motion output of the stable parallel cargo receiving platform can be achieved, wave fluctuation is compensated, and thus stability of the upper platform body is maintained. The stable parallel cargo receiving platform is high in structural stiffness and bearing capacity, large heaving space can be realized through small driving travels, and the stable parallel cargo receiving platform has extremely high practical application value.

Description

technical field [0001] The invention relates to a parallel mechanism, in particular to a parallel stable platform. Background technique [0002] With the development of my country's marine economy, there are more and more various offshore hoisting operations. 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 on ship equipment. This kind of movement has seriously affected many aspects such as important equipment at sea and the smooth reception of cargo by supply ships. Especially when the waves are high and the sea conditions are bad, it is easy to cause bumps and even damage to important materials and equipment. In view of the above problems, it is particularly necessary to propose a stable cargo receiving platform that can compensate for wave fluctuations...

AI Technical Summary

Problems solved by technology

Parallel mechanism has been widely used as a stable platform. Chinese patent 201610060702.8 proposes a six-degree-of-freedom parallel attitude-adjusting vibration isolation platform, which consists of a base, a moving platform, and three identical tower-shaped telescopic branches connecting the base and the moving platform. Composition, this invention occupies a small volume and has a large working space, but the tower-shaped telescopic branch package is driven by a linear drive unit, and the linear drive unit includes a sliding pair, which is not suitable for outdoor applications, especially for harsh environments such as humid oceans; Chinese patent 201310166550.6 proposes a foldable six-degree-of-freedom parallel attitude adjustment platform, which consists of an upper platform, a lower platform and six branches that connect the two platforms with the same structure. This invention has a simple structure, a small footprint, and a large working space. However, due to the asymmetric force of the branches, it is only suitable for light loads

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