| 摘要 |
agricultural engineering; land preparation. SUBSTANCE: method comes to mounting three rolls on agrobridge truss for travel in vertical plane. One roll of width over base equal to 10-15 cm is secured in middle of agrobridge span. Two other rolls of width over base equal to 120-160% of width of wheels or tracks of agrobridge are secured between middles of wheels or tracks of self-propelled trucks along axis. Wire is stretched over soil of leveled agricultural land and agrobridge is moved along land so that middle roll should move along wire by its middle. Care should be taken to keep agrobridge truss square to stretched wire. When first pair of ruts is made, wire is removed and stretched on adjacent section of land at a distance from first (preceding) position equal to width of double rut of agrobridge and other ruts are made. EFFECT: possibility of operation of agrobridge on lands which have no guide rail, reduced expenses and labor input. 2 dwg |
