Power analysis for silage formation of 140 kW self-propelled integrated bale production machine

Min-Jae  Park1   Cheol-Woo  Yang1   Hyeon-Ho  Jeon2   Seung-Yun  Baek2   Seung-Min  Baek2   Jun-Ho  Lee2   Yong-Joo  Kim1,2,*   

1Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon, 34134, Korea
2Department of Smart Agriculture Systems, Chungnam National University, Daejeon, 34134, Korea

Abstract

Silage, which is used as livestock feed, is the most commonly used storage feed for farmers. Silage needs fermentation. Bale operation is carried out using special vinyl for fermentation. In this study, the required power was analyzed for baling operation based on operation speeds. The baler operation consists of harvesting, baling, and wrapping. The current bale operation is performed by towing the baler with a tractor and uses individual machine. The problem with the use of individual work machines is that the work is inefficient due to the heavy labor consumption. For efficient work, it is necessary to develop a self-propelled integrated baler machine that can consistently perform harvesting, cutting, bale forming, and wrapping operations. In order to develop a self-propelled integrated baler machine, it is necessary to measure data and analyze the required power for the design of the power transmission system. The self-propelled integrated baler machine is equipped with a 140 kW class Tire 3 engine. The bale, made of a self-propelled integrated baler machine, is about 900 mm in diameter and 850 mm in width. The power is mainly consumed by the harvester, the driving part, the molding part, and the wrapping part. The driving part and the wrapping part use power transmitted from the hydraulic motor. The harvesting part and the baling part receive power from the engine through the PTO. The experimental data was measured by a data acquisition system. The driving speed was set to 5 km/h and 6 km/h to analyze the required power. At a driving speed of 5 km/h, the required power of the harvesting part, a baling part, a driving part, and a wrapping part were 32.5 kW, 4.3 kW, 6.5 kW, 4.2 kW, respectively. At a driving speed of 6 km/h, the required power of the harvesting part, a baling part, a driving part, and a wrapping part were 48.8 kW, 4.4 kW, 8.4 kW, 3.6 kW respectively. Therefore, as a result of the study, the highest required power was at 6 km/h speed of baler machine. In addition, the range of the total power required of the wrapping part is about 5.5% to 9%, which is less than 10% of the total required power. So it can be said that for an optimal design, the harvesting part should be focused rather than the wrapping part. The required power analysis is essential for the work efficiency and optimal design of the self-propelled integrated baler machine, and this study can be used as basic data for analyzing the required power for baling operation and selecting the optimal required power for each work.

Figures & Tables

Fig. 1. A components of self-propelled integrated bale production machine.