Kinematic and force analysis of a bucket frontlift

Abstract

Theoretical researches have been carried out and the obtained mathematical expressions characterize a periodic cycle loader with a center pivot frame articulation as a moving mechanical system. The type and the nature of movement of the loader operating element have been considered. The design parameters and the operating modes affect crucially on the interaction between the bucket and the cargo. We have obtained the interdependence between the velocity and the digging depth of a bucket frontlift into the bulk cargo, as well as the kinetic energy of a bucket frontlift as a system, in its initial position. During the force analysis it has been determined the impact of the studied factors on the tractive power of the frontlift and the total digging force, which depends on the tangent tractive power, rolling resistance force and frictional sliding force of a frontlift.