THREE POINT HITCH DRAFT SENSING SYSTEM Russian patent published in 2019 - IPC G01L5/13 A01B59/06 A01B63/112 B60D1/14 B60D1/24 B60D1/62 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to the agricultural machine building. System for measuring traction in a vehicle with left and right longitudinal rods for connecting the tool to the hitch frame comprises a housing. First and second spaced pivot fingers with the first and second arms pivotally mounted thereon, respectively, are installed in the housing. First lever has a first part, moved in response to a pulling force applied to the left longitudinal thrust, and a second part. Second lever has a first part, moved in response to the traction force applied to the right longitudinal thrust, and the second part. Elastic element connected to the first and second levers is shifted to push the levers towards each other. There is a locking element between the levers which engages with the levers to limit the movement of the levers towards each other. With the second parts of the first and second arms, a measuring transducer generates an electrical signal indicating the distance between the second parts.

EFFECT: compactness and tightness of the measurement system.

14 cl, 9 dwg