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Stroke mechanism of crane trolley
Juda, Lukáš ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
Bachelor thesis deals with design of stroke mechanism of crane trolley with load capacity 16 000 kg. The thesis contains calculations of basic parameters of stroke (rope diameter, diameters of pulleys, overall dimensions of rope drum, calculation of electric motor, parallel gearbox, frequency inverter, gear couplings and brake of hoist mechanism), strength check of rope drum and calculation of drum bearing. Part of the thesis is assembly drawing especially assembly drawing of complete hoist mechanism and weldment drawing of rope drum.
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Design of lifting gear of bridge crane 50 tonne
Koutný, Pavel ; Pokorný, Přemysl (referee) ; Kubín, Martin (advisor)
The submitted bachelor thesis deals with the design of a lifting gear for a bridge crane on 50 tonnes. The first part includes a design and a calculation of a rope, rope pulleys, design of a block and a cable reel. In the second part there is chosen an electromotor, a transmission, a brake, a clutch and bearings. Relevant strength calculations of a cable reel and a cable reel bolt are made for the capacity of 50 tonnes. The output of this bachelor thesis is a drawing documentation of a cable reel and a manufacturing drawing of reel components.
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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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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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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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