| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: seeding-machine contains frame, bearing on ground by running wheels. On front side of frame it is located tractive towing handle for connection with tractor. In both side areas of frame there are located side frames, installed by means of pivots with ability of rotation by means of hydraulic cylinders. On frame and side frames there are installed ploughshares vertically mobile. Additionally side frames with ploughshares, at turning in the end of field, can be installed on-the-mitre of limited quantity by means of turning from run position into turn position. Ploughshares are installed with ability of lifting relative to frame and side frames by means of driving elevating facilities in the form of hydraulic cylinders into turn position and/or into transportation position, and descent into run position. Hydraulic cylinders, turning side frames and lifting and descenting ploughshares, can be brought into operation jointly so, that while turn in the end of field side frames can be installed on-the-mitre of limited quantity. Angle value is preselected and/or installed by means of corresponding facilities aimultaneousl to lifting of ploughshares into turning position. Lifting of side frames and ploughshares will provide reduction of seeding-machine injuries while turning in the end of field. ^ EFFECT: reduction of seeding-machine injuries while turning in the end of field. ^ 8 cl, 6 dwg |
