VOLUMETRIC STRAIN-GAUGING APPARATUS Russian patent published in 2016 - IPC G01L5/13 A01B63/00 

FIELD: machine building.

SUBSTANCE: invention relates to agricultural machine building, particularly, to measuring instruments, and can be used for working members of tillers. For this purpose, an apparatus for volumetric strain-gauging plant comprising two frames, brackets for fastening to suspension system, a mechanism for attachment of working member, three rods, on each of which measuring links according to invention, frames are connected by means of three parallel tie ends are fixed by means of cardan joints, arrangement of rods provides movement of movable frame in transverse-vertical plane, and use of cardan joints allows avoiding twisting moving frame relative to fixed measuring links are transmitted compressive and tensile force parallel to direction of tie-rods. To ensure rigidity system attachment point of parallel rods to frame are arranged at vertices of isosceles triangles, inscribed in lateral faces of parallelogram.

EFFECT: objective of technical solution consists in development of design for volumetric strain-gauging plant, simultaneously measuring all three components of resistance force, which will allow more deeply studying effect of structural parameters of working members on their power parameters.

1 cl, 1 dwg