| 摘要 |
FIELD: agricultural engineering. ^ SUBSTANCE: agricultural complex has agricultural land with constant tracks and bridge unit provided with girder. Bridge unit consists of main immovable girder, movable suspension girder with working tools, and power modules. Upper beam of main girder is pivotally attached with its edges from the top to power modules. Lower beam of main girder is rigidly connected to upper base of roller bearing, whose lower base is rigidly connected to power module. Hydraulic cylinders rigidly attached in equally spaced relation to internal surface of upper beam of main girder have stems rigidly joined to internal side of lower beam of movable suspension girder through electromagnetic retainers. U-shaped guides are rigidly attached in opposite relation to internal side of lateral surfaces of suspension girder. Bodies of rotation are located within spaces of U-shaped guides for resting thereupon of guides of main immovable girder. Slots in guides are turned through 180 deg with respect to one another. Electromagnetic retainers are disposed within lower part of elongated lateral columns of main girder, and receptacles are axially aligned with said retainers on lateral columns of movable suspension girder and adapted for retaining working tools in operating and transport positions, respectively. Spring-loaded wheel poles with restricting stops are disposed within bodies rigidly fixed in equally spaced relation on lower beam of movable suspension girder. Initial turning sensing members are set on technological tracks at points of initiation of turning and on immovable parts of power modules. Constant technological track consists of perorated ferroconcrete plates, and profiled grooves for power module wheels are provided on said plates through the width of track. ^ EFFECT: improved quality of cultivated land, increased efficiency and simplified construction. ^ 10 dwg |
