1983 Volume 45 Issue 2 Pages 183-189
Bi-axial disk plow comprises a ordinary disk plow and a set of rotating blades which is attached to another shaft. This blade rotates, in the same direction as the disk, faster than the disk by using the rotating torque of the disk, which results from soil reaction. Due to the velocity difference between the disk and the blade, furrow slices are more pulverized by cutting or breaking under tensile stress. As the result the failure resistance is smaller than compressed shear fracture in ordinarry tillage device, as well as inverting and elevating furrow slices smoothly. The reduction of tillage resistance here means the reduction of tillage energy because the bi-axial disk plow uses waste energy effectively without adding extra energy. On top of that, the pulverization of soil is improved by the blade. The bi-axial disk plow is, therfore, considered as a type of minimum tillage device.
The tillage resitance of the bi-axial disk plow is about 1/2 (about 1/8 at minimum) compared with a ordinary disk plow. Thus the bi-axial disk plow will contribute much to saving energy in tillage operation.
