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Transport semi-trailer of a building machine for a tractor
Ružica, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The thesis deals with the structural design of a semi-trailer for transporting construction machinery. The first four chapters contain both a classification of tractor trailers and a survey of similar trailers in this category, the construction machinery transported and the legislative regulations they must meet. The following chapter is a survey of the basic elements of a semi-trailer. The individual elements chosen are then described, based on the previous chapter, and the construction of the semi-trailer itself. The last part of the thesis deals with strength analytical calculations of selected structural nodes according to the specifications. The appendix of the thesis contains drawings of the semi-trailer assembly, weldments of the frame and shop production drawings of the selected parts.
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Tractor semi-trailer 12t
Lukačovič, Andrej ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The bachelor's thesis deals with the construction of a flatbed tractor trailer with a load capacity of 12 tons. The work includes a search for semi-trailers of a similar weight category, tractors that can form a set with the proposed semi-trailer and legislative regulations for the operation of a semi-trailer on road. The structural part contains the actual construction of the semi-trailer and its components, basic analytical calculations, control of the frame structure and control of the dynamic states of the semi-trailer. The final part contains drawing documentation according to the assignment.
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Výškově nastavitelná oj postřikovače
JECH, Radek
This master thesis deals with the issue of connectivity of motor and non-motor vehi-cles with a deeper focus on the tractor, and the connectivity of non-motor vehicles using a fixed drawbar. In the practical part, the thesis deals with the design of a height adjustable drawbar of a sprayer using 3D design software. Using analytical calculations, the total force effects on the sprayer frame are determined and then the connecting elements are checked. The overall strength is checked using FEA analy-sis in Ansys Student 2024 software.
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Specifics of accidents Agricultural Technology
Tamáši, Adam ; Polcar, Adam (referee) ; Vémola, Aleš (advisor)
Master’s thesis focuses on the specifics of agricultural machinery accidents. The introductory part defines agricultural machines and its basic characteristics. It also analyzes specific technical regulations that govern the use of these machines in traffic. The experimental part then describes the methodology and interprets the results of conducted experimental measurements on driving dynamics of a tractor with carried accessory. These measurements consist of a break test in straight line, evasion manoeuvre and acceleration while turning left. The focus was given to not just the acceleration values, but also to the influence of the carried accessory, the load on the front axle or the tire pressure. The analysis of the findings made compares the results with the driving dynamics of ordinary passenger cars and provides a detail dissection of the most frequent causes of agricultural machinery accidents.
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High pressure hydraulics in agricultural machinery
Pavlík, Václav ; Kárník, Jan (referee) ; Soukup, Lubomír (advisor)
This bachelor thesis provides an overview of the most used ways of converting kinetic energy into pressure energy and the other way around by using hydrostatic converters. It is focused on the issue of high-pressure hydraulic mechanisms in agricultural machinery. In the next section I focused on getting an overview of the function of sophisticated hydraulic systems in current tractors and calculation of heat losses of lifting weight by front three-point hitch. For solving was used Bernoulli equation for real flow in pipes.
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Single-axle semitrailer 5t for a tractor
Christov, Rosen ; Fajkus, Pavel (referee) ; Kašpárek, Jaroslav (advisor)
This master’s thesis contains research of semi-trailers within similar weight category and research of road traffic laws for appropriate trailer category. Next part consists of semi-trailer construction design and its components. Followed by stress analysis of supporting frames by finite element method. Last part of the thesis is drawing documentation to the extend specified in assignment.
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Konstrukční trendy u vinohradnických traktorů
Zálešák, Jan
The bachelor thesis deals with the construction and construction trends of vineyard tractors. The aim of the thesis is to give an overview of the used vineyard tractors and their parameters. From the literature review, information on vineyard tractors, their history, characteristics, activities for which the vineyard tractor is used, comparison with conventional tractors, tractor engines, transmissions, hydraulic elements, suspension devices, cabs and other design trends and elements used in vineyard tractors are selected. The thesis is also interested in higher automation that will facilitate and improve the efficiency of work in viticulture. The conclusion of the thesis provides a comparison of selected output parameters and advantages and disadvantages of vineyard tractors of selected manufacturers.
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