Abstract:

In this paper, an analysis of spherical five-link hinged mechanisms with two degrees of freedom is given and 18 kinds of spherical five-link mechanisms are revealed. A dynamic investigation for one case of spherical five-link mechanism with concentrated masses of elastic links has been conducted. The mechanism is considered as a five-mass system, which motion is described by 8 nonlinear differential equations, four of them describe a motion for electromotors, two characterize a basic motion of the mechanism and two – a mass oscillation of a junction point of connecting rods. The received results enabled to design, manufacture and use in technics a spherical five-link mechanism for cutting volumetric ornaments, used in furniture industry .

Keywords: spherical mechanisms; elastic links; concentrated masses; differential equations; coefficient of rigidity; motion. 1.