| 摘要 |
<p>The machine extracts stored material e.g. fodder from a circular silo (1) and from the top, using a radial chassis (4) which rotates about the vertical silo axis (3). The machine is lifted by a winch (10) and cable (9) which effects support through the chassis (4), the lifting gear being controlled by a cam (17) with a follower (18) and a free wheel (19). The cam rotates with the chassis. A spring (24) applies the pivoting arm follower (18) to the cam (17), the positive movements of the arm being transmitted to the cable-drum of the lifting gear. The arm may follow the cam under the action of a roller sensor (22) which rolls along the cam perimeter, its deviation being limited by an adjustable stop (25).</p> |
