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Forks for handling logs
Seďa, Marek ; Juřík, Josef (referee) ; Škopán, Miroslav (advisor)
This master’s thesis with product design forks for handling logs as attachments for tractors Zetor Forterra the specified load capacity 1200 kg. The work is mainly focused on the design frame and fork clamps, the necessary calculations and ultimately strength check of designed structures. The work is also addressed in detail the linear hydraulic motor used for the rotational movement of the jaws, including the calculation of fork. Then there are the design calculations and stress analysis of journals. It also checked the stability of the machine. Stress analysis is performed for different load conditions and the jaw frame finite elements. As another part is making all the drawings.
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Analýza technických parametrů převodových ústrojí traktorů
Kosík, Tomáš
Bachelor thesis focuses on the analysis of the technical parameters of transmissions for tractors. The introductory part of this work deals generally with transmission devices as such and their related systems. It will be pointed to the importance of selecting the correct transmission device for a given application, as well as to the importance of this device properly construct and dimension. Next there is discussed the basic structural design of transmissions and will put their advantages and disadvantages, along with an explanation of the structure and principle of operation of these systems. Furthermore, this work deals with the parameters used for calculating technical parameters transmissions. And lastly, they will be compared to the selected solutions of different transmissions from different manufacturers. At the conclusion of this work are summarized findings from previous points.
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Brno brownfields by the Svitava river
Flössler, Libor ; Ležatka,, Lukáš (referee) ; Májek, Jan (advisor)
Brownfield in Brno by the Svitava river. Proposal of conversion and completing of a part of the area in Brno – Husovice district, where you can find brownfield, as e.g. an old hall of former Zetor company. The goal is to design a functional district with respect to the original housing development. The territorial unit is designed so that it respects surrounding housing development and improves transportation situation. It complies with transportation connection to future reconstruction of Zbrojovka premises, for which a proposal is being designed. The main target is to create a comfortable place to live in and to cover basic needs of every person, to design interesting places for relaxation, cultural life, provide sports facilities and raise number of job opportunities in this area. The goal of this project is also to create a diverse place for living. Its meant for people from different social backgrounds and for people who use cars both with low frequency or who use them on a daily basis.
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Brno brownfields by the Svitava river
Žáková, Dagmar ; Ležatka,, Lukáš (referee) ; Májek, Jan (advisor)
The theme of the diploma project is urban contemporary urban structure in the City of Brno. The main purpose of the selected brownfield is understanding the revitalisation of the city and gets the maximum benefit and to demonstrate the viability of the proposed development and its economic characteristics with the surrounding residential. Proposed is the public space, park and streets in this structure. The territory is located in the Brno-Husovice, near the river Svitava and surrounded by several decaying brownfield. My task was to find the right key to understand this whole area which includes the former object called motorárna - Zetor and find out the ideal solution for the future use of the complex and link it with existing structure to create functional urban organism. Currently, there is a chaotic and heterogeneous structure, which has a negative impact on the surrounding area, which is given by that the area and the surrounding buildings are isolated and hidden behind the unsightly walls. The territory is almost impenetrable, inside the area completely and the natural throughput to the river and partial recreation was supressed. With my project I was trying to create place, which will offer different city urban structure and activities for all day long. In such a place people will met and they will live, work and recreate there and use the river Svitava the right way.
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Design of Concept of a Universal Agricultural Tractor
Baka, Michal ; Buganská, Tamara (referee) ; Křenek, Ladislav (advisor)
This bachelor's thesis is focused on the innovation of the Zetor Forterra agricultural tractor design. The thesis deals with market analysis, researching main market rivals, technical parameters and describes the possibilities of solution. The result of the work are improvements of the product that would make this tractor better in both ways, in functional and ergonomic terms.
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Hand tools for renovation purposes
Klika, Jiří ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Diploma thesis deals with renovation of tractor Zetor 6911 with hand tool machining use. Theoretical part aims at historical evolution of machining and describes the hand tool machining methods. Renovation options include repair by a renovation company, yourself renovation and yourself renovation with cooperation in external company. Due to great renovation experience and technical knowledge is tractor chosen to be renovated by yourself. Complete machine renovation is very complex thus there are shown only specified examples of machine parts renovation. In the thesis there are in detail described renovation processes, including tools and hand devices. Final part includes results evaluation and costs comparation of renovation options.
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The High Pressure Fuel System Application for CI-engine
Ševčík, Ondřej ; Prokop, Aleš (referee) ; Dundálek, Radim (advisor)
This thesis focuses on the design of new high pressure injection system application on diesel engine. The design came from company Zetor’s demands. For this application was chosen system Common Rail supplied by company Bosch. Assignment was separated into several tasks. Research of suitable components for low pressure section, design of waste system and high pressure injection tubes design including injector clamping. Due to injectors used in this system was necessary to redesign cover for valves and even new system to lead wires from outside of the engine to injectors. Injector is attached by screw connection, which is composed from screw and clamping jaw. These parts are subjected to an analytic calculations. Clamping jaw of injector is even subjected to a FEM analysis, which focuses on fatigue life. Finally, the drawings were documented.
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The Possibilities of Displacement Increase of 4C Zetor Engine
Zloch, Jan ; Franz, Rudolf (referee) ; Dundálek, Radim (advisor)
Diploma thesis aims on mechanical design of new concept of Zetor UŘ III engine with displacement increase and solves calculations of main and pin hydrodynamic bearings of crankshaft. Creo 2 CAD software is used for preparing mechanical design of this new concept. For computation and analysis of hydrodynamic bearings multibody model of crankshaft mechanism is used with flexible FEM model of crankshaft for solving dynamics of mechanism and performing hydrodynamic analysis of bearings in FEV Virtual Engine. Results of this diploma thesis demonstrate the feasibility of new concept of engine and serve as a basis for next engineering tasks before realization of concept.
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Increase the braking effect of wet disc brakes
Falta, Martin ; Ševčík, Miloš (referee) ; Škopán, Miroslav (advisor)
This Master´s thesis deals with construction design of break system of the tractor Zetor Forterra HSX. At the beginning, there is an overview of different possibilities breaking system from other world´s producers of tractors. Afterwards there is constructional working from selection variant of suspension to final project. In this case the thesis contains required calculations of the whole device. Thesis also contains the stress and strain analysis of selected components of construction using a numerical approach of finite element method and drawing documentation of the selected components.
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