Shargorodsky S. Increas of effectiveness agricultural machines using by means of modernization the system of hydrostatic steering.

Dissertation is devoted to the questions the increase of efficiency of agricultural machines by research and modernization of the systems of hydrostatic steering control. Development of measures on the increase of technical level and competitiveness of domestic self-propelled agricultural machines (AM) is the target of work, by the increase of level of indexes and quality of work of the system of hydrostatic steering control (SHSC) of self-propelled AM. Research methods - mathematical and physical designs of the SHSC work; algoritmizatsiya of calculations with the use of modern powerful application packages; experiments a model and number, and on the base of which the set adequacy of the developed mathematical models. Work has a next practical value - complex of the programs upon settlement of processes of the SHSC work of self-propelled AM on different technological modes; offered recommendations for modernizations of slide-valve distributor of mechanism measuring out, which settle considerably to promote the high-quality indexes of work of self-propelled AM at loading of steering wheels meeting or passing; increase of technological of the offered upgrading construction which provides the receipt of economic effect. The scientific novelty of the got results is the first created mathematical model SHSC of self-propelled AM, which the features of work of the given system in composition AM are taken into account in, - temperature, power modes of operations, a presence is substantial nonlinear descriptions - backlashes in connections of elements of occasion; changes of the modes of flow of liquid; the method of approximation of expense of working liquid in slide-valve distributors at the change in the wide range of opening of working windows is offered; possibility of the effective providing of work of the system of steering management of self-propelled AM both at meeting is shown, and to the passing loading on the steering gears AM by the choice of opening of working windows of slide-valve distributor; offered method of choice of opening (ceiling) of working windows of distributor, which provides proof work of the system of steering management in the indicated modes; first in theory the possibility of replacement of construction of existent slide-valve distributor is proved more structurally simple, that provides the increase of technological of construction, decline of cost of making, increase of reliability in exploitation. Job performances are formulated as recommendations on the SHSC planning and separate its elements and the Joint-stock COMPANIES “Budgidravlіka” (Odessa) are passed, OAO “Odesskiy factory of radial-drilling machine-tools”, and also “AM Gidroprivod”, AM computer-aided “Designs is used in an educational process after disciplines.”