SOIL CHANNEL FOR LABORATORY RESEARCH OF WORKING ELEMENTS OF AGRICULTURAL TILLAGE MACHINES

摘要

FIELD: agriculture; machine building.;SUBSTANCE: invention relates to the field of agricultural machine building, in particular to the design of measuring devices for studying the loading of working elements of tillage tools, mainly with the use of soil channels. Soil channel contains a movable carriage with a frame and a strain gage bar driven by a cable system with a driving and a driven branches. Soil channel is equipped with a summing plate with three coaxially located ball hinges, direct and reverse branches of the cable system are attached to the external hinges. Free end of the strain gage bar rigidly fixed on the frame of the movable carriage is attached to the middle hinge of the summation bar, wherein the hinge of the strain gage bar attachment is located on its axis of symmetry.;EFFECT: simplified design, higher accuracy when measuring the forces acting on the working element of an agricultural machine in the horizontal direction.;1 cl, 2 dwg