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Traveling Mechanism of Crane Trolley Capacity 25 tons
Bartušek, Filip ; Řezníček, Milan (referee) ; Pokorný, Přemysl (advisor)
The bachelor thesis deals with the design of trolley traverse mechanism of workshop overhead crane with rated capacity 25 000 kg. This work contains one particular variant of traverse mechanism, it is an electric drive with two gear motors. The outcome of this thesis is the technical documentation, which includes the solution concept, design of the drive components (motor, gearbox, brake) and calculations of selected components (travelling wheels, shafts, bearings), and drawing documentation.
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Position control of cross-table dedicated manufacturing machine
Plocek, Jaroslav ; Vetiška, Jan (referee) ; Houška, Pavel (advisor)
The bachelor thesis treats the drive solution of the two axis cross-table of a single-purpose manufacturing machine. The first chapter analyzes the concept of drives and compares different variants using either a direct linear drive or a ball screw with a rotary servo drive. The thesis further deals with sizing the motor and the power unit assembly and the description of the whole measuring system. The structure of cascading position controller, its description and the calculation of current and speed control loops is covered in the next part. The last section discusses practical settings of all control parameters.
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Design of Electric Hoist, Capacity 250 kg
Soška, Michal ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
Bachelor's thesis deals with design of overhead electric driven hoist with hand-driven trolley. The objective was to design original and effective solution. Lifting mechanism is implemented as a chain drive, with own designed chain guide. Work contains a description of the individual components, corresponding calculations and drawings.
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Mechanical design of mobile camera system via electric drive
Bosák, Dalibor ; Brandejs, Jan (referee) ; Paloušek, David (advisor)
This bachelor thesis deals with an overview of accessories for a camera movement and mechanical design of a mobile camera crane via electric drive. In the construction part of the thesis are primarily brought conception designs of a camera crane including stress analysis in each places of the crane and then the proposal itself according to the chosen concept. There are shown solutions of individual parts of the camera crane with their description and views. In the end of the thesis are resumed the advantages of the design and economical analysis including the prices of each components and the whole crane.
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Design of electric tackle
Hovádek, Pavel ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
Bachelor’s labour id concerned about design and construction electrical TACKLE with hand carriage travel. It contains retrieval part of present knowledge, multiple choice selection and mathematical calculation. Work also contains project drawings.
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Cable reel
Bunda, Petr ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
The work deals with construction of electrical cable reel with lifting capacity 800 kg, height of lift 20 m and lift speed 10 m/min. In the work is solved design of cable, cable drum and its placing in frame, strenght calculations of the drum and its shafts, check calculations of bearings and keys, choice of suitable drive and its connection to the drum and fastening the whole to the base. Between parts of the work belong component drawings, parts list and assembly dravings with the main measurements and assembly diagram.
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Alternativní pohony automobilů
Doležal, Ondřej
The bachelor thesis deals with alternative propulsion vehicles. Introductory section focuses on the comparison of conventional and alternative drive. Another part deals with the various alternative drives that are now available. The former, are powered hybrids, followed by electric, hydrogen power, and the conclusion of dedicated vehicles on gaseous fuels. In each chapter describes the functioning of the drive components required and refueling. At the end of each chapter are listed the positives and negatives of the drive. Finally, the study introduces selected types of vehicles with alternative drive. Cars are augmented by technical parameters. Following is an analysis of the functional properties of the vehicle.
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Commercial and economic comparison of traditional and alternative fuels
Dvořáková, Monika ; Sedláček, Jiří (advisor) ; Kočan, Jakub (referee)
Negative predictions about oil stocks combined with the instability in the Middle East encourage development of alternative fuels, which would reduce dependence of the world's economies on oil. The oil and petroleum derivatives are the main dependencies for vehicular traffic, which contributes to the greenhouse gas emissions by a large part. It is therefore necessary to focus on trying to reduce the fuel consumption of cars used for personal transportation. One way to achieve this goal is, for example, to convert existing cars to run on biofuels, buying a hybrid or an electronic vehicle, or, hopefully soon, hydrogen-powered automobile. Obstacles preventing a wider deployment of such fuels and drive systems are often higher purchase and operating costs. These economic disadvantages are being gradually reduced though, and in the future we can surely expect an increase in the number of alternative vehicles on the roads.
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