MODELING OF CONTROL OF SPEED CONTROL DRIVE AND SLEW MECHANISM DRIVE OF HIGH-SPEED CATERPILLAR VEHICLE WITH BORDER GEARBOX

Abstract

The relevance of the topic of investigation is connected with the current trends in gearbox automation and request to lighten slew control of caterpillar vehicles. The purpose set can’t be achieved only in a physical modeling of a drive: the problem is too multiversion and a physical modeling does not guarantee an optimum solution. The scientific novelty of the investigation consists in the authors’ creation of simulator of gearbox drive and slew mechanism drive consisting of an electromotor, a planetary reducer, a crank mechanism, a hydraulic distributor and hydro-cylinder. As a consequence, there is realized a parametric investigation possibility of drive numerous parameter impact upon its performance characteristics. By means of the mathematical modeling the drive parameters ensuring the fulfillment of the requirements specification are substantiated. In the second part of the paper there are shown modeling results of caterpillar vehicle acceleration in a low and the fourth gears and a slew at a speed of 5 m/sec. The result comparison of mathematical modeling and experimental investigations is carried out. The data of experiments, in which took part the authors of the paper, confirm completely the adequacy of the simulator developed. In such a way, the simulator of caterpillar vehicle motion is supplemented with the reliable model of a gearbox drive and a slew mechanism drive in machinery with the border gearboxes. The paper material is used in the design of a similar drive of a new machine.