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Turn - over positioning table
Mareček, Vojtěch ; Dokoupil, Vladimír (referee) ; Foller, Bronislav (advisor)
This diploma thesis deals with projection and general design of rotary indexing table for dedicated machine tools. The major attention is given to substitution of hydraulic drive table by table driven by servomotor, namely double axis its positions in vertical and horizontal directions. The total configuration of rotary table is solved as a construction kit, user can used any servomotor and additive gearbox. The work is concentrated to the optimization of table construction for this new designed conception. The positioning and fixing of table plate is solved by couple of Hirth couplings with central hydraulic motor. The computational part of work includes calculations of dynamic of rotary motion of the table and hydraulic system. All important screw connection, gear wheels and Hirth couplings were verified by calculations. Also working lifetime of bearings and strength deformation of major constructional sections of rotary table verification were controlled. Inherent part of work is security analysis, economics analysis, patent search and analysis of construction identity. Presented work contains three-dimensional model, drawing documentation of both variants of configurations and production drawing of major section parts of rotary table.
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Modern Tractor Transmissions
Bartošová, Daniela ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
This Bachelor thesis concerns an overview of the modern trends in the area of tractors transmissions. It explains the reason why both the power shifts and the continuously variable transmissions. Further on, this thesis emphasizes the innovative elements of transmission concept at selected tractor manufacturers.
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Optimization of mixer truck gearbox bearing arrangements
Górnisiewicz, Tomáš ; Mazůrek, Ivan (referee) ; Nohál, Libor (advisor)
This diploma thesis deals with a design and optimization of mixer truck gearbox bearing arrangements. The gearbox is an important part of mixer truck. Major emphasis is put on design of main bearing which is a key component of the gearbox because of high load applied on it. Two basic criterions were considered in main bearing design – dynamic radial load capacity and contact stress in contact of roller and raceways. Developed two-stage optimizing algorithm is based on standard bearing and allows to design new bearing which is specialized for carrying output shaft of mixer truck gearbox.
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Press LKJP 630
Haman, Tomáš ; Ptáček, Libor (referee) ; Omes, Jiří (advisor)
Master’s thesis deals with the design of the drive of the press LKJP 630, the configuration is a fixed range by the construction of LKJP. The thesis was ordered by partnership with company ŽĎAS, which is introduced. The first part is devoted to analysis of solved problems, it primarily contains the overview on forming machines, used drives and a description of their main parts. The second part deals with the drive itself, there is accomplished the design and performed the strength analysis of the major parts of the drive. Drawing documentation and bill of materials are included.
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Planetary Gear Box Used for Drive Table of Vertical Lathe Driven by the Direct Drive Engine
Žila, Slavomil ; TOSHULIN, Milan Lutonstý, (referee) ; Novotný, Lubomír (advisor)
The main theme of this thesis is an analysis, desing and construction of a planetary gearbox used for a drive of a vertical lathe table. The theoretical part of the thesis describes fundamental features and terms of planetary gearboxes and torque motors. In the next part of my work I design loose functioning of toothing. The calculation part of my work is processed in accordance with technical standards. The practical part of my work deals with a description of the project and the implementation of the device. The drawing documentation is processed with Cad system and it includes general assembly drawing and drawings of the three important components.
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Project of service lift
Drápela, Josef ; Malach, František (referee) ; Malášek, Jiří (advisor)
This diploma thesis deal with project of service lift. The service lift is drive by special mechanism using thrust chain. The chain is led from chain accumulator over sprocket gear to vertical guiding groove. Lift car is connected to the end of chain. There are designed and described the most important constructional unit of service lift in this thesis. But the most attention is pay to drive, including break system and chain accumulator. The drive is consist of electric motor, clutch, break, planetary gearbox and sprocket gear.
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Signal Analysis
Vávra, Pavel ; Keprt, Jiří (referee) ; Beneš, Petr (advisor)
This thesis deals with problem of analysis signal acquiring measurement of uniformity motion harmonic drive and planetary gearboxes. In introduction part are explain some features of FFT and concept of cepstrum. Further is present overview of most often measured parameters of these gearboxes and needed formulas, which express connections among particular mechanical parts of gearboxes. The next part deals with description of SW program unit generated in LabView environment, which is output product of work and makes analysis on measured courses.
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Modern hybrid drive of passenger vehicles
Švoma, Jan ; Blaťák, Ondřej (referee) ; Vančura, Jan (advisor)
This bachelor thesis deals with the current hybrid-drives in passenger cars. The thesis contains the categorization of hybrid systems according to structure and use. It also discusses the analysis of individual components and describes their suitability for use in different situations. It is focused on current offering of hybrid vehicles and development opportunities. At the end of are evaluated economic aspects and prospects for the use of these systems in the future.
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Manufacturing of Components Using Rapid Prototyping Technology
Hájek, Roman ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
The aim of the bachelor thesis is design of planetary gear modeled in 3D program Autodesk Invertor and made using additive technology extended by Fused Deposit Modelling. In the first section is presented the most widely used methods of Rapid Prototyping. The next section is focused on design of planet gear, the process of modeling in 3D software, and analysis of needed configurations for the 3D printer.
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Recovery winch for mobile machinen
Tichý, Štěpán ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
Bachelor’s thesis deals with design rope winch for mobile machines with a maximum pulling force of 20000 N. The work consists of technical report and drawings. Technical report includes a search of the current solution, designs and controls rope, rope drum, electromotor, gearbox and bearings. Next the work includes custom design of semiautomatic mechanical clutch with the calculation components of which it is composed. Design documentation includes component drawing and drawing the rope drum.
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