Year 2024, Volume 9, Issue 2

Year : 2024
Volume : 9
Issue : 2
   
Authors : Milan JUGOVIĆ, Miodrag ZORANOVIĆ, Zoran MALIČEVIĆ, Mladen IVANIŠEVIĆ, Tanja JAKIŠIĆ, Darko MARKOVIĆ
Title : OPERATIONAL AND TECHNICAL TESTING OF TWO TYPES OF TRACTOR RAKES IN MOUNTAINOUS AREAS
Abstract : The paper presents the results of testing two types of the most common rakes in hilly and mountainous conditions (chain finger side delivery rake and finger-wheel side delivery rake). The average yield of green mass is 38.14 t/ha, ranging from 23.50 to 46.50 t/ha. At the time of hay windrowing, the average moisture content was 31.65%. The average width of the formed windrow by the rakes is 1.25 m. The aim of the study was to measure the basic operational parameters (surface productivity, working width utilization coefficient, losses made), as well as fuel consumption and the engaged power of the tested rakes. For the two types of rakes tested, the working width utilization coefficient was in the range of 0.87-0.80 for chain finger side delivery rake, and 0.82-0.73 for finger-wheel side delivery rake, at travel speeds of 5.15 - 7.02 km h-1 and 4.86 - 9.97 km h-1, respectively. The performance of the rakes varied from 0.81-1.01 ha h-1 for chain finger side rakes and 0.72-1.31 ha h-1 for finger-wheel side rake. The total losses for chain finger rakes averaged 1.45-2.92% of DM yield. Finger-wheel side rakes achieved slightly lower loss values of 1.29-2.21% DM. Otherwise, as the moisture content of the hay decreased, its total dry matter losses increased. The hourly fuel consumption for chain finger rakes was 2.42-4.17 l h-1, and 2.25-2.95 l h-1 for finger-wheel rakes, while the specific consumption was on average 3.60 l ha-1 and 2.82 l ha-1, respectively.
For citation : Jugović, M., Zoranović, M., Maličević, Z., Ivanišević, M., Jakišić, T., Marković, D. (2024). Operational and technical testing of two types of tractor rakes in mountainous areas. AGROFOR International Journal, Volume 9. Issue No. 2. pp. 59-67. DOI: 10.7251/AGREN2402059J
Keywords : chain finger side delivery rake, finger-wheel side delivery rake, productivity, losses, fuel consumption
   
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