Recommendation for mechanical harvesting of coffee based on vibration behavior settings rods harvesters

Ciência Rural

Ferreira Júnior, Luiz de Gonzaga¹  Silva, Fábio Moreira da¹  Sales, Ronan Souza¹  Ferreira, Danton Diego¹ 

[1] Universidade Federal de Lavras, Lavras, Brazil

关键词: coffea arábica L;    mechanical harvesting;    adjustments;    harvester;   

DOI  :  10.1590/0103-8478cr20141679

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

:Growers need to reduce costs of the coffee production to meet the demand and stay competitive in the market. Such a need has led to the application of mechanization in the coffee harvest ( Coffea Arabica L.), which is a costly process and requires high cost of manpower, and this last is increasingly scarce. The migration from manual harvest to semi-mechanized or super-mechanized made new technologies and diverse models of coffee harvesting machines emerge. These coffee harvesting machines have settings that directly influence the harvesting efficiency. To understand the dynamic behavior of coffee harvesting machines components and systems is very important to develop new products, setting and operation norms. In this context, this reseach aimed to analyze the vibration of the harvester rods of an automatic coffee harvesting, by considering different adjustments, in order to understand its dynamic behavior in terms of amplitude and frequency of vibration, and to infer about adjustment recommendations for the mechanical harvesting coffee. Results showed that the harvesting studied presented larger amplitudes of vibration of stems vertically when set for 8 and 10Kgf of curb, at vibration of 950 cycles min1 of cylinder and with the stems of 570mm of length; the highest efficiency occurs when the rods vibrate vertically, promoting greater contact between the rods and side branches and fruit of the coffee plant. Also, the achieved results can be very useful as a guide for adjusting coffee harvesting machines, for research anddevelopment of new technologies to the benefit of the grower.

【 授权许可】

Unknown