| Autor: |
P.A. Cowell, P.F. Herbert |
| Rok vydání: |
1988 |
| Předmět: |
|
| Zdroj: |
Journal of Agricultural Engineering Research. 39:85-97 |
| ISSN: |
0021-8634 |
| Popis: |
It has long been known that when long implements such as mouldboard ploughs are mounted on a tractor three-point linkage an excessive variation in working depth can occur when operating over an undulating ground profile. The principal cause of such variation has been shown to lie in the geometrical constraint imposed on the implement by the conventional three-point linkage. A variable geometry linkage is described in which the length of the top link is varied continuously as the tractor crosses an undulation. This permits a greater degree of articulation between the tractor and the implement and leads to improved control of depth. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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