ЗАБЕЗПЕЧЕННЯ КЕРОВАНОСТІ ГУСЕНИЧНИХ ЗЕМЛЕРИЙНИХ МАШИН БЕЗПЕРЕРВНОЇ ДІЇ ЗА УМОВИ МОНТАЖУ ЇХ РОБОЧОГО ОБЛАДНАННЯ ЗБОКУ ВІД БАЗОВОГО ШАСІ

Abstract

This paper presents the problem of determination of stable transposition controllability conditions for the continuously operating earthmoving machine under conditions of working equipment mounting to the side from the base chassis (towing unit). The economical crisis in the country requires promising directions in the new technology creation, one of which is the creation of multipurpose towing units designated for mounting working equipment for different technological purposes. Such equipment can be mounted at the front, back, or side of the towing unit (chassis) and the machine created in such a way should not lose controllability in its operational mode. The characteristic feature of the machine for soil padding under the pipeline (МП-М) is the presence of two implements - upfilling and compaction implements. They have a rear overhanging position which unavoidably leads to displacement of the machines center of mass to the back side in relation to transverce axis and in the direction of the track that is near to the pipe in relation to longitudinal axis of the base chassis. Besides, at the moment of soil compaction under the pipe by the blade, In vertical component of the soil reaction appears in the compaction mechanism which leads to transverse dislocation of the pressure center towards the track that is farther from the pipe. Based on condidition of traction between tracks and soil, the minimal possible turning radius was determined for the machine for soil padding under the pipeline -МП-М in the working mode on the curvilinear section of the pipeline of different diameters.