| 摘要 |
<p>The trailing hose system comprises a spreading boom (2) with a number of trailing hoses (4), which by means of hoses (5) are connected to a cutting distributor (6). The cutting distributor (6) comprises at least one circular cutter plate (7) with a number of outlet holes (8) along its periphery for connection of hoses (5) and a belonging cylindrically shaped cutter ring (10), whose thickness is less than the diameter of an outlet hole (8), and which has a plane under side (11), which comes to rest against a plane upper side (12) of the cutter plate (7). The cutter ring (10) is held pressed against the cutter plate (7) by a piston (13), which on the upper side is actuated by a spring force (21). Over the piston (13) and a plate (24), which are mutually meshing loosely along the edge, the cutter ring (10) is coupled to an excentric (27) on a shaft (28), which is driven by a motor (29). By the excentrical movement of the cutter ring (10) each of the holes (8) all round are opened and closed for each revolution of the excentric (27). The parts are so built into a housing that liquid manure is delivered to an area outside the cutter ring (10) and air to an area inside the cutter ring. Thereby the hoses (5) are under atmospheric pressure at the upper end. The cutting distributor (6) is mounted at such a height that the liquid manure drains itself out of the system by free fall, and it is oriented so that the holes (8) face the end of the boom (2), when the latter is swung out. The trailing hose system is floatingly suspensed by means of two sets of rods (36,37) - fig. 7 and 8 - which are placed at a distance from each other, and two hydraulic cylinders (41), which can raise and lower the trailing hose system, and whose pressure sides are mutually connected. Thereby the system i held in an approximately horizontal position irrespective of roughnesses in the terrain. At the lowest end of each trailing hose (4) is inserted a steel rod (45) which prevents the hose from breaking on contact with the ground. It is achieved that straw in the liquid manure is effectively shredded, whereby clogging up of the hoses is avoided. This prevents the hoses from breaking, gives a minimum of resistance in the system is minimal, and a maximum of efflux of liquid manure is achieved in an even flow. <IMAGE></p> |
