STRAIN GAUGING FOR SOIL DIGGING RESISTANCE MEASUREMENT Russian patent published in 2019 - IPC G01L1/04 G01N3/58 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement of soil resistance digging. Tensometric weight contains tie-rods for transfer of horizontal, vertical and lateral forces, guide profiles, tensolinks for force registration. Four tie-rods for transmitting horizontal digging forces by one end are connected to the working member through the lugs, and by the other end are connected to the tensolinks for recording of horizontal forces, in turn, the tensolinks for recording of horizontal forces are connected to two vertical tie-rods. Two tie-rods for transfer of vertical digging forces at ends comprise horizontal tie-rods with guide profiles for recording of horizontal forces, guide profiles of vertical tie-rods are installed with vertical tie-rods coaxially and between upper and lower horizontal tie-rods. To measure vertical digging forces, the load-bearing tie-rods are connected by their one end to vertical tie-rods, and by their other end to vertical guide profiles, for registration of lateral digging resistance force two vertical guide profiles are connected to side tie-rod, which contains lateral guide profile, and strain gauge for registration of lateral digging force is connected by one end to side tie-rod, and by other end – to lateral guide profile. To fix tensometric weight to frame of machine on side profile there are holes, and on side tie-rod – slots.

EFFECT: possibility of determining three components of resultant resistance to digging and determination of point of application of vector of resultant force in front and vertical directions.

3 cl, 6 dwg