Parameters of the ripper-mole knife

Technological scheme ripper-mole is given. To increase stability drain traction strength, a knife is attached to the main working organ-the deep-hole, to which the drainer is attached. When the tool moves forward, a thin flat knife cuts a vertical slit in the sub–arable soil layer, which subsequently breaks due to soil deformation, and a drainer attached to the knife with a chain forms a cylindrical cavity in the soil-a mole drain. Analytical dependences are obtained for determining the height, the angle of sharpening the knife and installation of knife the horizon, as well as its traction resistance. Theoretical studies have established that the height of the ripper-mole knife should be 7.5 cm, the angle of sharpening 300 and the angle of installation to the horizon 220.