外文翻譯--甜菜收獲機(jī)(文件)
【正文】 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 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 atten
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鄂ICP備17016276號-1