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Mechanical design of locking device of swimming-pool roofing
Machýček, David ; Čudek, Vladimír (referee) ; Paloušek, David (advisor)
This bachelor thesis deals in its background research part with the possibilities of covering or roofing the level of water of a swimming pool. After stating the options for roofing the swimming pool, the efficiency of this roofing is analysed and main advantages of the roofing are found. The constructional items of the swimming pool roofing are also described in the research. At the same time, the most widespread system of the blocking of the swimming pool is analysed and explained. In a part of the thesis, which deals with new solution for covering the swimming pool, individual solutions are proposed first. There are two solutions in this proposal. The first one comes from the idea of a trackage guidance of all the segments, which basically is one of the most widely used systems on today’s market. The second proposal is proposed for a partly trackage guidance of the segments. A suggestion of the partly trackage guidance was chosen for the constructional solutions, for which a 3D digital model has been created and from this model sketches of sets in open and closed state have been generated and adjusted.
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Conceptual design of bridge crane 50 tonne
Soukup, Lumír ; Pokorný, Přemysl (referee) ; Kubín, Martin (advisor)
This bachelor work is koncerned with concept propsal of traveller crane with tonnage 50 t. Work content proposal of crane runway girder, travelling wheel, rail and in calculators part is proposal of parts of traveling crab like the drum, guide and balancing pulley, cable, hook, wheels, whels bearing, travelling wheel, drive of traveling crab. In work is assembly drawing and production drawing of drum.
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Design of Lifting Mechanism of Crane
Sokol, Filip ; Malášek, Jiří (referee) ; Pokorný, Přemysl (advisor)
This bachelor thesis deals with design and calculation of the basic parts of lifting mechanism of double girder bridge crane. First part of thesis contains concept of solution. The second one is engaged in own design of individual components and their calculation. Third part contains strength calculation of cable drum.
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Block and Tackle
Hlaváč, Martin ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
This bachelor work concerned with solving and calculating lifting mechanism of special mobile crane (travel lift). It‘ s make construction analysis. Work has functional and partial solidity calculation. Work includes complete 3D model of block and trackle and design documentation.
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Solution technology of production multiple groove guide pulley.
Bauer, Vít ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Solution technology of production multiple groove guide pulley, analysis pulley on the part of function, technology of construction, material of the body. Choice semi-finished product's, technology for production, way institute workpiece in machine. Proposal the machine, tools, preparations, helps and gauges. Making of working process, verification the cutting conditions on compliance specified funds middle arithmetical deviation profile. Evaluation of production methods according to the production loads.
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Solution technology of two groove guide pulley production.
Pokladník, Robert ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Technology compiling two groove pulley making for two types of billets. As a billets is used in both cases a cast iron EN-GJL-250. The technological process solves production of both variants from designing the billets to trans-mission to the storeroom. The production is realized through cutting operation by CNC machines. The tools are selected with cutting tip. Finaly both variants are compared from economical perspective.
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Solution technology of production multiple groove guide pulley.
Procházka, Zdeněk ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Solution technology of production multiple groove pulley, comparison of the technology of construction, choice of technology and semi-finished products, choice of cutting materials, analysis of manufacture clamping. Comparison of production possibilities at the application of two different semi-finished products on multi-purpose engines.Making of working process at the application of machine centre and comparison of the effectiveness of its application.
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Travelling Crab
Bernard, Vladislav ; Špička, Jiří (referee) ; Malášek, Jiří (advisor)
This work dissert about proposal and calculation hoisting device travelling crab, intended for tonnage 50 000 kg. For this tonnage there're performed pertinent strenght calculations, concerning journal of pullies, side plate, crossbeam and crane hook. Part of work is proposal desirable electric motor, gear - box, brakes, jaw clutch and bearings. In work are also descriptions of hoisting apparatus and descriptions of construction parts of sheave block. Defined are also main dimensions ancillary components for desired hoisting. Work is finished with complete drawing documentation of sheave block travelling crab.
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The comparison of physics textbooks for basic schools
MAZANEC, Radim
The thesis deals with the comparison of physics textbooks for primary schools. The purpose of this thesis is to determine the representation of individual sets of textbooks in primary schools in the South Bohemian Region, to develop and test custom teaching concepts revolving around thematic unit of 'Simple Machines'. This work is addressed primarily to teachers as a tool to enhance teaching effectiveness, to support the imagination and to increase interest in physics among pupils. These are the reasons why thematic unit, called Simple Machines, has been developed in form of interactive presentation, whose contribution and efficiency has been practically verified directly during physics classes in few selected primary schools. Benefits have been verified through accredited didactic tests and their evaluation and results are processed at the end of this thesis.
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