| 摘要 |
The seed or fertilizer drill is positioned between two grooved rollers (11, 13) in turn positioned between the disc harrows (21). The rollers (11, 13) consist of rings (23) with shoulders (24) which are fixed onto a shaft (22) and have the axial distance between them adjustable. - Each ring (23) has a discharge funnel (30). The grain drill shaft (26) is driven by a roller (11 or 13) with freewheel coupling between. The shaft (22) of the roller driving the grain drill shaft has a drive gear which drives a transmission gear and a drive pulley fixed to the grain drill shaft (26).
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