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Differential tackle
Mikunda, Luboš ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
The work deals with the differential tackle for 900 kg capacity and 9.5 m lift Includes selection of parts fixed and free blocks, option chains, pulleys and other functional parts. Further stress analysis of pins sprockets, side panels and hook the free blocks, drawing-based assembly and important detailů.Práce calculation includes the assessment of self-locking limit.
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Electric winch for drilling wells
Volec, Martin ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
This bachelor thesis undertakes design of two speed electric winch for the headgear specified for the drilling of the water wells through the use of core technology with the loading capacity up to 1000 kgs. Thesis consists of the theoretical as well as the operational part. Theoretical part is occupied with the possibilities of the problem solving, calculates the main winch parameters. In the study the reasons for choices of the main parts of mechanism e.g. electromotor, transmission, winch and others are given. Generally the brief introduction into the problem is inserted in each chapter prior to the calculations. Operational part involves the drawing of the overall configuration and the cable drum setup.
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Differential tackle
Žák, Petr ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor´s thesis deals with the proposal and calculation of self-locking differential tackle with lifting capacity of 450kg 3.8m lift. It includes among others proposal of construction free and fixed pulley block, the choice of hand and hoist chain in common with calculation of sprockets to afore mentioned chains. It performs important strength calculations with assessment limits and self-locking safety taking into account the manual manipulation. There is a drawing documentation according to the topic of the bachelor´s thesis, attached to this document.
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Stroke mechanism of crane trolley
Galas, Radovan ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
Bachelor's thesis deals with design of stroke mechanism of crane trolley loads for the weights which do not exceed 5 000 kg. This thesis divided into written and practical sections. Written part deals with the calculation of the principal dimensions of lifting and stress control of cable reel. In this work there are also given reasons for choosing certain key parts of the lifting mechanism, such as: electric motor, gearbox, etc. Prior to the calculations in each chapter there is usually located a short introduction of the topic. The practical part contains a drawing of the complete lifting mechanism, cable reel assembly and two production drawings.
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Motor Vehicles Manual Gearboxes
Skula, Libor ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
This bachelor thesis deals with motor vehicles manual gearboxes. A computational design of a gearbox is explained here, specifically gear ratios and their graduation. Then, basic types of gearboxes are described and functional parts synchromesh, gearshift and control mechanism are given in detail. Finally double-flow gearboxes and their types are characterized.
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Developments of Car Drive Train
Švestka, Jiří ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The final project contains the relavant piece of evidence about the development and use of frictional gearbox with the infinitely variable transmission, which is used in cars. The construction and the principle of those gearboxes is also described. Furtermore, advantages and disadvantages are assessed with respect to the conventional gearbox. Finally, the author’s opinions and views about frictional gearbox with the infinitely variable transmission are presented.
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Two-speed gearbox
Kratěna, Jan ; Pokorný, Přemysl (referee) ; Ždímal, Pavel (advisor)
The objective of this work was to create the „Technical Documentation of Two-Speed Transmission“. The submission included a brief content of the demanded work. At first, calculations of gear ratio, tooth system dimensions and module were performed. Subsequently calculations of single tooth wheel loads and their safety were performed. After the tooth system calculation the shaft, bearings and key calculations followed. The Technical Documentation was completed with pictures and charts that illustrate the individual load points. A 3D model of the two-speed transmission inclusive detailed drawings of the individual shafts and tooth wheels were created as a part of the documentation as well.
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