Abstract
Indexing spatial gear mechanisms are widely used in automatic machines. The movement in gear mechanisms with stops is defined by complex design shapes that can lose their stiffness at critical loads. To measure the ultimate bearing stress of these mechanisms is possible by both the physical and numerical models tests results. The paper considers the numerical model for the spatial gear mechanism with driven disk indexing at a constant angular velocity of a driving disk. The presented mechanism kinematics and geometry parameters and finite element model were analyzed in the SolidWorks design environment. The structure and kinematics analysis revealed the possible reasons of mechanism failures. The numerical calculations results showing the design performance under the active area contact stresses and teeth bending stresses are represented. The maximal bend of the shaft was determined to avoid engagement failure.
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