MOLDBOARLESS TILLAGE TOOL Russian patent published in 2008 - IPC A01B11/00 

FIELD: agricultural engineering.

SUBSTANCE: tillage tool has actuating devices and drive adapted for driving of actuating devices and made in the form of connecting rod-crank mechanism connected to tractor's takeoff shaft. Radius of crank (r_c) is half the predetermined tillage depth (h). Length of rocker (l_r) is determined by dependence l_r=4r_c. Length of connecting rod (l_cr) is determined by formula l_cr=2r_c. Height of working tool is equal to tillage depth (h). Number of working members is even and is within the range of 4-10. Working members are mounted on crank shaft in angularly offset relation, with offset being equal to α_y=(360 deg:n)2. During operation, crank performs complicated motion along path with coordinates of points described by equations in axes: x_i=r_c(α_i/λ+sinα_i), y_i=r_c(1-cosα_i). Absolute speed of crank is determined by formula: V_a=V_c(1+1/λ²+cosα_i)^0.5. Acceleration of any point of crank is α=r_cω_c ².

EFFECT: reduced consumption of power and increased quality of basic soil tillage on slopes and on soils exposed to water erosion.

2 cl, 3 dwg