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Porovnání vybrané sklízecí mlátičky v konvenčním zemědělství a v precizním zemědělství.
VALENTA, Pavel
The diploma thesis on the comparison of the harvest of cereals using the combine harvester in the quality of work is based on the technical literature review, which describes the individual parts of the combine harvester from the harvesting adapters to the threshing device. The methodology of this diploma thesis describes the procedure by which the results and values for the comparison of the Class Lexion 770 TT combine when working in manual control and GPS control (Global Positioning System). Measured, calculated and compared values obtained according to the 2019 methodology. Harvesting of grain crops using the combine harvester is compared in terms of harvest efficiency, harvest losses, machine throughput, performance balance and fuel consumption. The thesis also includes basic economic operating costs.
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Provozní porovnání sklízecích mlátiček s rozdílným typem mlátícího a separačního zařízení
SUCHÝ, Václav
The bachelor thesis focuses on theoretical but also practical comparison of combine harvesters with different types of threshing and separating equipment and their historical development. The theoretical part describes the individual parts of these agricultural machines and mentions various possibilities of their implementation. The practical part is focused on the objective examination of the main parameters characterizing the performance and quality of the threshing machine and their comparison among the main competitors of today's supply. The selected technologies are tangential (conventional) and axial (unconventional) threshing and separation mechanisms.
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Porovnání sklízecích mlátiček různých výrobců při sklizni obilovin a řepky
ADAMEC, Petr
The diploma thesis on comparison of combine harvesters in terms of work quality is based on professional literary research, which describes the parts of combine harvesters from adapters to threshing devices. The methodology of this thesis describes the procedure for obtaining results and values for comparison between John Deere 9640 WTS, New Holland TC5060, Claas Lexion 450 and Sampo Comia C8 combine harvesters during work. The results and the conclusion of the work compare the calculated, measured and determined results achieved precisely according to the methodology of 2017. The combine harvesters are compared in the areas of work quality, namely in the lossability, the theoretical throughput, the quality of spreading and crushing of straw and finally in efficiency and fuel consumption. The work also includes the costs associated with opearting combine harvesters.
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Hodnocení a porovnání sklízecích mlátiček CLAAS TUCANO 440 a CLAAS TUCANO 450 při sklizni obilovin a řepky ozimé
BRÝNA, Ondřej
This diploma thesis deals with the evaluation of CLAAS TUCANO 440 and CLAAS TUCANO 450 combine harvesters for the harvest of cereals and winter rape. It evaluates problems in terms of losses, depending on grain humidity, quality of crushing and spreading plant residues. The thesis sets basic performance and is supplemented by a simple analysis of investment and operating costs. The methodology of the solution was based on own measurements, information obtained from the owner, literature and agricultural standards.
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Měření hmotnostní koncentrace polétavého prachu v kabinách zemědělské techniky
MATĚJKA, Petr
This Bachelor thesis is focused on comparison of concentrations of particulate matter in cabins of combine harvesters. Fortschritt E 512, New Holland TX 66 and New Holland CX 880 were selected for the measurement. Literary research contains information about the history of combine harvesters and the basic concepts of dust. The results obtained were evaluated, plotted and compared.
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Crop flow improvements at the Power Flow header
Štelcl, Michael ; Červinka, Jan (referee) ; Kašpárek, Jaroslav (advisor)
The master's thesis is focused on a design of optimal working speed of auger and belt transporter which are parts of Power Flow header for standard type of combine harvester. In the master's thesis author suggest a new simplified theory of crop flow inside the Power Flow header. The thesis contain the factors which can affect the crop flow and comparison between the Power Flow and competitor's header. The thesis also contain geometrical characteristics of crop for four types of cereal.
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Hodnocení sklízecích mlátiček NEW HOLLAND s odlišným provedením hlavních funkčních částí
ZDRAŽIL, Daniel
This bachelor thesis is focused on cereal harvest where the most important elements are the combine harvesters. The thesis also describes the importance of cereals, the history of the combine harvesters and their dividing into groups. The bachelor thesis analyses the difference in the activity, productivity and quality of work made by combine harvesters of the same brand with different threshing device. In this thesis, there is also the comparison which is performed on the same fields during harvest of winter wheat and rape oil.
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Sklízecí mlátičky z hlediska hlučnosti a prašnosti
LÍKAŘ, Ondřej
The thesis is focused on the combine harvester in terms of noise and dust in the cabin, but also outside. The literature search is the basic data and concepts from areas combine harvesters, noise and dust. The actual measurements were carried out on the land at the four farmers. Measured the machines were different dates of manufacture. These are machines Fortschritt E 512 (1983), Fortschritt E 514 (1989), IH 2188 (1998) and Claas Avero 240 (2011). The results of measurement were graphically displayed and compared each other. The measured values were compared with the current legislation. These measurements showed that the noise does not just limit oldest machine. Dustiness been in this job for guidance only. Thanks dust measurements but we get a more complete view of the work environment in which the operator is exposed.
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Hodnocení sklízecí mlátičky s rozlišným provedením pojezdového ústrojí
BARÁK, Jan
This thesis describes chassis design of combine harvester and its types generally. This thesis is focused on Claas Lexion 750 Terra Trac Helmut combine harvester with crawler chassis. For each selected chassis and systems by global manufacturers of agricultural machinery are described main parts and their possible variants. Thesis includes practical methodical measurements, which provides details for the assessment of the losses, spreading quality, crushing quality, operating parameters, machine performance and fuel consumption. Next the effect of moisture on the losses, quality of spreading and crushing is evaluated. Furthermore, I compare effect of crawler chassis on performance and in the end is a simple analysis of investmend and operating costs and characteristics of the company. The aim of the thesis is to evaluate operation and work quality of combine harvester with crawler chassis at harvest of cereals and rapeseed in agricultural production and simple economical evaulation of the machine.
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