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Planetary, cycloidal, worm, screw, harmonic gearboxes
Čišecký, Damián ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This bachelor's thesis focuses on planetary, cycloidal, harmonic, screw and worm gearboxes, providing an insight into the design, calculations and applications of these mechanisms in the transmission of mechanical energy. It contains clear schematic drawings, construction documents and calculations of transmission ratios, with an emphasis on current manufacturers and technical parameters.
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Realization of Educational Problem on Experimental Apparatus for Measurement of Gear Efficiency
Runštuk, Jiří ; Mazůrek, Ivan (referee) ; Klapka, Milan (advisor)
This diploma thesis is focused on the implementation of the educational role of the experimental station for measuring the effectiveness of gears. The proposed laboratory task "Experimental measurement of the effectiveness of gears" is intended to familiarize students with the basic principles of gears and especially highlight the issue of the effectiveness of gears. In this presented thesis, it is also suggested the possibility of expanding the educational use of the experimental station. This extension deals with vibration diagnostics of frequencies of gears.
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An equipment for PET filament producing for 3D printing usage
Kotačka, Petr ; Knoflíček, Radek (referee) ; Kočiš, Petr (advisor)
This thesis deals with design of equipment for the production of PET termoplastic fibre to be used in 3D printing by means of FDM method. Concise survey of plastics processing methods is presented herein, furthermore, structural design of equipment with necessary engineering calculations is included as well. Drawing documents with the total economic evaluation is a part of this thesis too.
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Rotary swinging head for excavators of weight category 14,0 to 18.9 t
Ptáčník, Michal ; Michele, Jiří (referee) ; Škopán, Miroslav (advisor)
This thesis deals with the design of a rotary swinging head, which is mounted between the excavator handle and its accessories. Its function is to tilt and rotate with the excavator accessories. The paper describes the most common types of manufactured Rotary swinging heads and their components, including a comparison of competing products. The search part is followed by the calculation part. Based on the calculations, the components from which the 3D model is made are selected. This is followed by the verification of the selected components by calculation. The conclusion of the work is the strength analysis of the selected components. Part of the work is also a drawing documentation of selected assemblies.
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Compact transmission
Richter, Vojtěch ; Prokop, Aleš (referee) ; Řehák, Kamil (advisor)
This bachelor thesis focuses on compact transmissions. The motive of the thesis is to review modern gearbox concepts. It describes special gearboxes that are compact in design, e.g.: worm gearbox, planetary gearbox. The focus is on the environment in which they operate, the input speed, the magnitude of power transmitted, the weight and dimensions of the gearbox. Machines that can be included in this group and operate with compact gearboxes are aircraft engines, wind turbines, industrial robots or small portable machines and medical devices. The work includes the design of a gearbox for a car winch. It is a three-stage planetary gearbox and 7 variants have been calculated. The required parameters were a maximum gearbox diameter of 100 mm and a minimum thrust of 1500 kg. Furthermore, an electric motor was defined. Subsequently, the best gearbox design was selected with a gear ratio of 1:144, a diameter of 92 mm, a width of 35 mm and a thrust of 1503 kg.
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An equipment for PET filament producing for 3D printing usage
Kotačka, Petr ; Knoflíček, Radek (referee) ; Kočiš, Petr (advisor)
This thesis deals with design of equipment for the production of PET termoplastic fibre to be used in 3D printing by means of FDM method. Concise survey of plastics processing methods is presented herein, furthermore, structural design of equipment with necessary engineering calculations is included as well. Drawing documents with the total economic evaluation is a part of this thesis too.
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Realization of Educational Problem on Experimental Apparatus for Measurement of Gear Efficiency
Runštuk, Jiří ; Mazůrek, Ivan (referee) ; Klapka, Milan (advisor)
This diploma thesis is focused on the implementation of the educational role of the experimental station for measuring the effectiveness of gears. The proposed laboratory task "Experimental measurement of the effectiveness of gears" is intended to familiarize students with the basic principles of gears and especially highlight the issue of the effectiveness of gears. In this presented thesis, it is also suggested the possibility of expanding the educational use of the experimental station. This extension deals with vibration diagnostics of frequencies of gears.
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