| 摘要 |
<p>The trailer has a hopper (1), an hydraulic pump (9) driven by the tractor power take off (21) and distributor which receives grain through an opening in the bottom of the hopper. The opening is controlled by a plate valve (14) operated by hydraulic jack (13). Grain is distributed by driven endless belts on arms which swing out to either side of the trailer. The belts are driven via shafts, bevels gears and chains and sprockets from wheel (4) by toothed wheel (8) which is engaged with the wheel by a jack (12).</p> |
