Improvement of the plane-parallel movement of the attachment of the feller-bunchers machine LP-19

Abstract

This paper presents a mathematical model of the articulated manipulator feller-bunchers machine LP-19 (FBM LP-19) and allows you to identify the laws of motion of the boom, the stick and stand feller-bunchers head (FBH) depending on the volume of the working fluid in the hydraulic cylinders drive the boom and stick. Based on the results of mathematical modeling, a method and means for controlling the trajectory of the stick, arrow, and FBH with one complex control device that provides the movement of the FBH close to the plane-parallel one. The dependences of the position of FBH in the vertical plane of the boom and stick were established using the developed integrated device and without it. It has been experimentally established that the use of the developed integrated control device firstly reduces the time of the aiming operation of the FBH (changing the horizontal outreach) and secondly, the average production time of unit of wood is less than that of the base machine, which allowed increasing the productivity of the FBM compared to the base one.