Design and Development of a Shaker with Variability of Course, Frequency and Movement.
2009
Mahdi Niya, A`bbas | Mohseni Manesh, Ahmad | Loghavi, Mohammad
Harvesting can be an expensive step in producing most of agricultural products it is done by labour. Mechanical harvesting in most of fruits such as walnut, almond, pistachio and olive can decrease production expenses to some extent. These products are used for drying and processing so probable mechanical damages don't cause much difficulty. The main harvesting machines for these kinds of products are shakers. The important factors for designing a shaker is frequency, course and movement type along with time. These factors that are variable in different conditions products (crops) should be determine before planning to design a specific shaker. For a product, in this experiment a machine by changeability of these factors, was designed and developed. After investigation on different mechanisms, finally cam mechanism (eccentric axis circle) was used for producing trembling. By changing rotation center of eccentric axle circle, the trembling course was changed. This part only can produce longitudinal vibrations boom has pivot Movement around a spot near cam. By defining (limiting) movement of one spot in boom in a slopped surface by variable slope, Latitudinal vibrations can be produced. Considering the slope of this surface and longitudinal movement extent of a boom and consequently conjunction of longitudinal vibration frequency can be done by changing the diameter of power transfer pulley and precisely the PTO circular velocity. This machine is installable on a "goldoni" tractor and three point hitches. The frequency variation extent of this machine is 5-30 HZ and trembling course is 0-100 mm.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Agricultural Research and Education Organization