外文翻譯--甜菜收獲機(jī)-其他專業(yè)(編輯修改稿)
2025-02-24 10:17 本頁面
【文章內(nèi)容簡介】 s is indicated at 30, in Fig. 1 and in broken line in Fig. 3. These plows engage the earth along the opposite sides of a row of beets and act to lift thebeets and the clods from the row. The lifted beets are then engaged between the wheels which are rotating rear wardly at their adjacent sides. As the beets pass between the wheels the latter are forced outwardly about the axis of the hinge bolts 19 to allow passage of the beets and the latter are thrown from the rear sides of the wheels. It will be noted that this hinged, springactuated, swinging action of the wheels allows them to automatically space themselves in accordance with the size of the beet. A hood 3i is supported from the fixed braces 23 to prevent the beets from passing over the wheels. Should an unusually high beet be encountered or should the plows lift the beets to an unusual height, their crowns will strike this hood and be guided thereby rear wardly between the lifting wheels. It is desired to call particular attention to the construction of the lifting wheels. Each consists of a hub member 32 provided with a plurality of radial spoke sockets. Spokes 33 extend radially outward from the hub member to a connection with resilient rim plates 34. The rim plates support a pair of corrugated hoops 35 which form the two side edges of the wheel. The upper hoop is of smaller diameter than the lower hoop so as to impart a frustoconlcal shape to the wheel. The two hoops are connected together at the high points of their peripheries by means of cross bars 36. The corrugations in the hoops allow them to conveniently engage the rounded sides of the beets, thus forming beetreceiving pockets, and the open spaces between the cross bars permit the rounded sides to project into the wheels to be firmly gripped will be noted that the hoops 35 and the cross bars 36 are members of small diameter, in the nature of rods, and by virtue of this construction the area of contact between the lifting wheels and the beet there between is quite small. This has the advantage that, without requiring excessive spring pressure, encrusted soil, clods and the lie clinging to the beet are broken and fall away from the beet, yet the pressure with which the wheels
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