REVERSIBLE PLOW Russian patent published in 1998 - IPC

FIELD: agriculture, in particular, equipment for basic cultivation of soil. SUBSTANCE: reversible plow has reversible frame 1, plow bodies 2 rigidly mounted on frame 1, carrier wheel 3 with depth regulating mechanism 4 and carrier 5 coupled to pivotal unit 6. Frame 1 is mounted on shaft 7 in immovable hitch 8 provided with hydraulic cylinder 9 adapted for turning of frame 1. Hydraulic cylinder 9 is connected with double-armed lever 10 which may be turned through 90 deg. One arm of lever is coupled to shackle 11 and crankshaft 12. Length of this arm of lever is twice the length of crankshaft 12. When hydraulic cylinder stem is extended, crankshaft 12 is positioned perpendicular to double-armed lever 10 and shackle 11 is positioned perpendicular to hydraulic cylinder axis. When hydraulic cylinder stem is retracted, crankshaft 12 is positioned in parallel with double-armed lever 10 and shackle 11 in parallel with hydraulic cylinder axis to provide for smooth turning of frame 1. Crankshaft 12 is coupled to upper link 13 extending in parallel with front bar of frame 1 and adapted to carry pivotal unit 6, which is connected with its lower link 17 to immovable hitch 8 to form parallelogram mechanism, whose lower link 13 and upper link 17 are disposed in different planes to provide turning of this mechanism through 180 deg and constant vertical position of carrier wheel 3. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 4 dwg