DEFINITION OF PERMISSIBLE CONTACT STRESS DURING OPERATION OF HARMONIC PRECESSIONAL DRIVES WITH ROLLING ELEMENTS

Abstract

The development of modern engineering causes appearing of new priority tasks to solve, constant increase of power and decrease of mass and dimensions parameters, concentrated in individual machines and units, take their places among them. Taking into consideration the fact mentioned above, we have created a new progressive kind of transmission mechanisms – the harmonic precessional drives with rolling elements. The value of contact stress has the defining importance for long lasting working ability of the transmission mechanisms while operating with nominal values of workloads. In following article generalized method of definition of permissible contact stress for master links of harmonic precessional drives with rolling elements which occur in workloads transfer process is presented, based on the analysis of publications about harmonic precessional drives with rolling elements. Represented method considers specifics of geometry of transmission, used materials, surface hardness of master links and necessary durability of transmission