Investigation of parameters of accumulator transmission of self-moving machine

Abstract

Under the influence of various factors the moment of resistance of the self–moving machine changes. The presence of hydrostatic transmission in the machine allows to get the desired transmission ration between the engine and the leading wheels and provide nominal load of the engine with the changeable moment of resistance. Since the operating liquid practically does not compress the transmission ratio changes by regulating the working volume of the hydraulic machines. In view of inertia of the components to change the working volume is possible only with definite frequency which practically is always less than the frequency of changing the moment of resistance. The fluctuations of the resistance moment within the zone of the insensitiveness of the regulator cause fluctuations of the angular speed of the machine engine as the consequence of which the usage of it might decrease. For reduction of fluctuations of loading of the engine in a zone of tolerance of a regulator the hydraulic accumulator connected in a delivery cavity of hydrostatic transmission is used. Theoretical researches are lead and dependences of key parameters of the hydraulic accumulator on the change of the moment of resistance of the self-moving machine are established