Створення перспективних різально-кидальних робочих органів землерийно-транспортних машин безперевної дії

Abstract

Найбільш прогресивний шлях підвищення ефективності роботи землерийно-транспортної машини безперервної дії полягає у впровадженні на них активного робочого обладнання. В даній роботі запропоновані найбільш перспективні конструкції робочих органів різально-кидального типу. Continuous-run earthmoving vehicles such as grader elevators, shovelling ploughs, shovel excavators can enhance the effectiveness of earthworks. In the standard designs of these vehicles, soil destruction and its movement onto the external transporting device is ensured by the driving force of the base vehicle. One of the problems of continuous-run EMV operation is moving soil from the destruction zone to the external transporting vehicle. In the commonly known EMV designs soil shifting can be ensured by crowding power from the soil that has been cut, by applying additional equipment with the drive for soil shifting (for instance, shovel heaving equipment, intermediate screw and belt conveyors). Using such equipment entails increased power consumption due to overcoming friction in the drive and that of soil against the transporting device, as well as rise in materials consumption. This problem can be solved by applying active operating equipment, namely cutting-and-heaving operating elements, in connection with which use of an operating element combining two operations as an intensifier of the cutting and transporting processes is of great practical interest. The most promising are designs of the active operating equipment of continuous-run earthmovers, in which movement of soil from the destruction zone onto the external transporting device is ensured by heaving. Soil acceleration and setting the direction of heaving is done by the cutting device. This means does not require application of any other construction elements between the cutting part and the external transporter, which reduces material and power consumption of the process at large.