外文翻譯--甜菜收獲機(jī)-其他專業(yè)-文庫吧資料
2025-01-27 10:17本頁面
【正文】 ble frame 12. The entire lifting mechanism is supported from this movable frame and is raised and lowered therewith. The lifting mechanism prises a pair of open, multisided, conical, lifting wheels mounted on wheel shafts 16 in shaft journals 17. The journals IT are secured on the lower extremities of hinged arms 18. Each of the hinged arms 13 is mounted on a hinge bolt 19 on the extremities of a fixed bar 20. The bars 20 extend downwardly from the vertically movable frame construction allows the shafts 16 to swing freely sideward from the hinge bolts i 9. The two shafts and, of course, the wheels thereon are constantly urged toward each other by means of suitable pression springs 21. The pression springs are pressed beneath the heads of bolts 22 which extend through the lower extremities of a pair of fixed braces 23. The fixed braces are permanently secured to a cross bar 24 in the vertically movable frame 12. Thus, as the two wheels are forced apart, they will act against the springs 2!.Power is transmitted to the wheels through the medium of universal joints 25 which connect each of the shafts IS with a gear shaft 26. The gear shafts are mounted in fixed bearings !5 and are rotated through the medium of beveled gears 2 T mounted on a countershaft 28. The countershaft is driven from any suitable source of power, for instance, from the axle of the tractor wheel II, through the medium of a drive chain lifting wheels are supported in spaced relation with their axes at a rearward and downward incline directly to the rear of a pair of beet lifting plows. The position of such plows 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
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鄂ICP備17016276號(hào)-1