Affiliation:
1. UMR CNRS 6004 Laboratoire des Sciences du Numérique de Nantes (LS2N), , 44300 Nantes , France ;
2. Centre National de la Recherche, Scientifique (CNRS) , 44321 Nantes , France
3. Université Laval Laboratoire de robotique, Département de génie mécanique, , Québec, QC , G1V 0A6, Canada
Abstract
Abstract
Cable-driven parallel robots (CDPRs) offer high payload capacities, large translational workspace, and high dynamics performances. Their rotational workspace is generally far more limited, however, which can be resolved using cable loops, as was shown in previous research. In the case of fully constrained CDPRs, cable loops can induce unwanted torques on the moving-platform (MP), causing it to tilt and move away from its intended position, which we call parasitic tilt. Hence, the orientation accuracy of such robots is usually limited. This paper deals with the design, modeling, and prototyping of a planar CDPR with infinite rotations, without parasitic tilt and without an additional motor. This robot, which we call a cable-driven parallel crane (CDPC), is composed of a mobile platform (MP) with an embedded mechanism and a transmission module. The MP is linked to the frame by four cables, three of them acting in parallel, forming in effect a double parallelogram. Among these three parallel cables, two form a cable loop, i.e., they are two strands of the same cable redirected to and from the MP through an embedded pulley. The two-degree-of-freedom (dof) motions of the moving-platform of the CDPC and the internal dof of its embedded mechanism are driven by a total of three actuators, which are fixed to the frame. As a consequence, the overall system is fully actuated, its total mass and inertia in motion is reduced, and it is free of parasitic tilts.
Funder
Agence Nationale de la Recherche
Reference22 articles.
1. Geometric Optimization of a Large Scale CDPR Operating on a Building Facade;Hussein,2018
2. Development of an Ultrahigh Speed Robot Falcon Using Wire Drive System;Kawamura,1995
3. Discrete Reconfiguration Planning for Cable-Driven Parallel Robots;Gagliardini;Mech. Mach. Theory,2016
4. Wrench-Feasible Workspace of Mobile Cable-Driven Parallel Robots;Rasheed;ASME J. Mech. Rob.,2020
5. Optimization Based Trajectory Planning of Mobile Cable-Driven Parallel Robots;Rasheed,2019
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