The aim of this paper is a comparison of the operating parameters of combine harvesters on a selected farm. The working parameters were measured and evaluated on combine harvesters of the CLAAS and CASE IH brand by different ages and different concepts of threshing. Measuring took place in the season of 2013 and 2014 (Lexion 770 in 2012 too). Working parameters in this case mean the performance...

Brasica napus L. is one of the most important crops in the world, but every year during mechanized harvesting with conventional combines large quantities of the seeds fall to the ground and thus result in a decrease in yield. Therefore, designing and manufacturing a head specific for harvesting this crop is a high priority. In this study, the head of a combine for harvesting fine-grained produc...

Abstract. Researchers around the world have focused on autonomous agriculture, with systems encompassing greenhouse, orchard, field and other applications. Research has shown the potential and ability of the technology to allow a vehicle or selection of vehicles to follow a specified task. In this study, one aspect of the problem, that of operating a tractor-cart combination in conjunction with...

A novel pneumatic recovery method was proposed to curb the problem of high losses caused by side-cutting in a rapeseed combine harvester header. The influence and material status changes on effect studied via CFD-DEM (computational fluid dynamic- discrete element method) coupling simulation. airflow action compared analyzed, composite determined. In addition, feeding rate explored, critical con...

Traditional harvesters of tiger nuts (Cyperus esculentus) face problems including low harvesting efficiency, high loss rate, impurity and labor intensity. To solve these improve the efficiency quality nuts, a crawler-type tiger-nut combine harvester that integrates digging, soil removal, picking, screening, collection was designed. The machinery comprises crawler devices working devices. key we...

As a multi-source vibration machine, the complex of combine harvester has caused many effects on various components. In this paper, dynamic response plate and shell is studied, influence factors determined. The structure optimized, scheme structural optimization that replaces finite element model with surrogate developed. designed Latin hypercube design (LHD), surface generated based Kriging mo...

many factors affect yield loss in wheat harvesting with a grain combine harvester and there is no mathematical model to describe the behavior of this complex system. thus in this study, a fuzzy logic controller (flc) was designed, implemented and tested for the automatic settings of cylinder speed, concave clearance, fan speed and forward speed of a model 955 john deere combine. first, the mech...