АДАПТИВНЫЕ ВОЗМОЖНОСТИ ГИДРОМЕХАНИЧЕСКИХ МУФТ С ДИФФЕРЕНЦИАЛЬНЫМ ПЕРЕДАТОЧНЫМ МЕХАНИЗМОМ

Abstract

For accident free operation of a technological machine it is necessary to protect it against dynamic loads of high intensity. High dynamic loads are often stipulated by an engineering process and during the process of work a frequency of their impact may change in a wide range. In this case the elastic clutches used in the machine driving gear are not always efficient because of resonance phenomena. The design of a hydro-mechanical coupling with a clogged differential driving gear allows controlling clutch stiffness by means of changing parameters of its hydro-system in the course of technological machine operation. 
 There are carried out investigations of stiffness adaptation potentialities of a hydro-mechanical coupling with a differential driving gear to a changing fre-quency of dynamic load impacts of the technological machine on the basis of a developed simulator of coupling operation dynamics taking into account stress-strain characteristics of the driving gear and processes taking place in the coupling hydro-system. The dependence of a stiffness coefficient of the coupling upon such hydro-system parameters as initial pressure in a hydro-accumulator and liquid consumption. 
 As a result of numerical computation of coupling dynamic characteristics in the Matlab application program package there are obtained dependencies allowing the definition of rational values of hydro-system parameters at which the amplitude of the dynamic load influencing a driving gear is minimum. There are shown the results of the investigations of the coupling under the analysis on the experimental bench developed specially which confirmed coupling functional working capacity and simulator adequacy.