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Effect of engine load on the output parameters of the tractor kits
Paulmichl, Roman ; Svída, David (referee) ; Bauer, František (advisor)
The thesis deals with the current situation in the construction of tractors, particularly engines and accessories. The work includes a methodology for measuring tractor rigs in traffic as well as methodology for plough/plow kits measuring. The measured values were tabulated, graphically presented and analysed. The thesis provides an overview of the issue of the combustion engine load placed on the engine by working conditions in transport, during primary soil tillage with different modes of operation of the tractor set. The thesis aim is to find out the practical effect of the engine load on the monitored parameters and to indicate possibilities for achieving higher efficiency in tractor units with minimum fuel performance
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Vliv síly v horním táhle závěsu traktoru na spotřebu a výkonnost souprav na zpracování půdy
Drašar, Jan
The aim of the thesis was to analyze the measured values from measurements. In the research part of the work, an overview of the technologies used for soil processing was processed. Here are the basic tillage systems (conventional tillage, conservation tillage and direct seeding). Soil processing technologies such as ploughing, mulching, strip processing or loosening without turning topsoil are also summarized here. In the final part, the machines used for tillage were described. The methodology described the measuring devices and individual plowing sets that were used to measure the output data of the plowing sets. When evaluating the data, the main parameters were the specific effective fuel consumption, specific effective efficiency, hectare effective efficiency and slippage of the drive wheels depending on the force in the upper link and the pressure in the traction cylinder of the selected tractor sets. The diploma thesis was prepared from 3 field measurements, a total of 71 measurements were made. Individual measurements were analyzed and it was shown that the length of the upper drawbar increases the average specific efficiency by 17%, the hectare effective efficiency by 20%. Furthermore, it has been shown that the average consumption will decrease by 6% and the increase will decrease from 2% to 7.5% on average.
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Analýza výstupních parametrů traktorové soupravy na zpracování půdy v podmínkách soukromé farmy
Kokeš, Matěj
The thesis describes the current state in the design of soil processing machines and evaluates the influence of the three-point hitch settings of the tractor and the working tool on the output parameters of the sets. As part of the work, experimental measurements were carried out on two sets with a trailed cultivator and a trailed plow. The first set examined the effect of the load on the front axle and engine speed on tractor performance, while the second set examined the effect of the force in the upper hitch, loading of the driving axles, and engine speed on the output parameters of the tractor. The results of both measurements showed that with the correct tractor settings, slippage and fuel consumption decrease, leading to increased performance and work efficiency.
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Porovnání shrnovačů píce Pöttinger TOP 342 a Krone Swadro TC 640
VOKÁČ, Martin
The diploma thesis is focused on the decision-making process when purchasing a new rake related to the size of the company. The decision process is between the machines Krone Swadro TC 640 and Pöttinger TOP 342. The work will compare factors related to surface performance, fuel consumption and economic aspects. The decision-making process will be simulated for five types of businesses with areas of 21.33, 100, 200, 500 and 2,000 hectares, from which the costs of 1 ton od materiál will be calculate.
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Technická úroveň traktorů používaných aktuálně v zemědělství
LIŠKA, Michal
The historical development of tractors is summarized in the theoretical part of the bachelor thesis. Furthermore, the technology of currently used tractors and a description of the individual systems that currently used tractors in agriculture have are described here. In the practical part, based on a questionnaire survey, the development of tractors in selected agricultural enterprises in the vicinity of Jindřichov Hradec and their current technical level are monitored. Information from individual agricultural enterprises is subsequently summarized in statistics showing the shift of tractor vehicle fleets in the selected area.
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Comparison of the technical solution of heavy off-road towing vehicles and the effect of environmental modifications on their operation
POSPÍŠIL, Vladimír
The bachelor's thesis deals with the implementation of electronic and ecological elements into heavy terrain towing machines. In the theoretical part, the term "heavy terrain towing machine" is defined and a specific category of selected machines, namely tractors, is outlined. The historical development of tractors, including their technical parameters, follows. In the practical part, the fuel consumption of selected categories of tractors is analyzed. This is followed by a description of the function of electronic and ecological elements in current tractors and the influence of these selected elements on fuel consumption. In the next part, an attempt is made to look into the future with regard to this issue, in consultation with the directors of the five largest tractor importers to the Czech Republic. Towards the end of the practical part, opinions of experts from practice on the issue are presented. The results of the findings are presented at the end, along with a comparison of the mutual effects and opinions in the context of the possibility of specific practical application.
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Vliv provozního režimu traktoru na činnost systému selektivní katalytické redukce
Karásek, Tomáš
This thesis called "Influence of an operation mode of a tractor on function of selective catalytic reduction system" describes various operation modes of the tractor, when aqueous solution of urea (AdBlue) was injected into selective catalytic reduction system. The first part jkdeals with particular pollutants in exhaust fumes. Formation of pollutants and their impact on humans and environment is described in this chapter. The second part describes individual technical systems used to lower harmful components, especially selective catalytic reduction system. The last part concentrates on practical measuring of operating parameters of the tractor, particularly consumption of aqueous solution of urea conducted in different modes of a motor. Part of the experimental measuring is graphic and verbal evaluation.
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iOS Application for Driving Data Extraction and Analysis via OBD-II
Pihrt, Patrik ; Beran, Vítězslav (referee) ; Bobák, Petr (advisor)
This project aims to create a mobile application for iOS devices that provide valuable information about user's car rides. Needed data are obtained by ELM327 located in OBD-II scanner which can communicate with the car. Obtained data are analyzed using table of limits. The application informs riders about their driving mistakes and giving them tips how to fix them. Trips can be saved and exported in the form of logbook. In addition application includes diagnostic functions that can be found in every other diagnostic application.
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Vliv tlaku v pneumatikách na výstupní parametry orební soupravy
Rýznar, Jiří
With the continuous development of the technology leads to an increase in working engagement of the tool and the tractor weight. Heavy machinery and then crossing over land causing negative compaction, resulting in loss of production, poor water retention, nutrient air. These factors result in reduced monetary values of produced crops. Plowing is one of the most energy and resource intensive operations, while at present it is still used. One of austerity machine is equipped with a central tire inflation system, thereby reducing the fuel efficiency per hectare sets increase, reducing slippage, time required for the operator as well as to reduce soil compaction.Theoretical part discusses conventional tillage where part split the plows, describes linkage control systems a central tire inflation tire design solutions.The practical part is focused on monitoring the impact of the inflation pressure of the tires of tractors that affect the result output parameters Plow kit. Among the factors affecting the economic cost operations include correctly chosen tires which allows to work at such a reduced air pressure, then the correctly chosen adjustment of the plow set of tractors. In the field measurements were determined fuel consumption, performance sets, volumetric efficiency, volumetric fuel consumption for wheel slip of the tractor the plow 1170 Case CVX coupling plow verified. As found by lowering the tire pressure decreased fuel consumption, fuel consumption slippage displacement, as well as increased performance kit volumetric efficiency.
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Vliv zatížení motoru JOHN DEERE 8320R na výstupní parametry strojů na zpracování půdy
Liška, Martin
This thesis deals with construction of higher output tractors. The theoretic part is di-vided into three main parts. The first part of this thesis is about emissions of internal combustion engine and element of construction as are compression ignition engine and Common rail fuel injection. The second part is about constructions of undercarriage primarily about front axle of tractor. The last part deals with tractor hydraulic system and its control systems. The practical part of this thesis is about John Deere 8320 R. All measurements have been provided in agriculture operations with machines of Köckerling and Lemken in Zeas Polešovice a. s. The field measurements are divided into two parts of engine work. In the first part of work, the engine has the revolution 1500-1800 min-1, in the second part of work, the engine has the revolution 1800-2100 min-1. Fuel Consumption, total time, revolution, time for rotation, width and depth of the harrow were included. The measured values were calculated effective fuel consumption, opera-tional consumption, efficient performance, operational efficiency and working speed trains.
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