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Belt conveyors - special constructions
Hejl, Radek ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The aim of this bachelor thesis is to draw up an overview of manufacturers of belt conveyors and their individual components together with clarification of functions and construction of selected units. The work includes basic division, overview of manufacturers of different types of belt conveyors, diagram and description of individual parts, analysis of conveyor belts, drums, belt cleaners and others, together with the overview of manufacturers of these components. It also contains an assembly drawing of the selected unit.
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Differential tackle
Pavliš, Jakub ; Pokorný, Prokop (referee) ; Malášek, Jiří (advisor)
This bachelor´s thesis deals with the proposal and calculation of self-locking differential tackle with hand drive. Maximum lift capacity is 670kg and lift 5,2m. It includes evolution of differential tackles and description of the structure Weston´s differential tackle. Next theoretical calculation and the calculation of chosen construction, which involves the calculation of chain, sprockets, supporting structure and assessment of limits of self-locking. Drawing documentation is included in this thesis.
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Travelling Crab
Mikulec, Roman ; Řezníček, Milan (referee) ; Malášek, Jiří (advisor)
This work deals with the calculation and suggestion of the main parts of the travelling crab for lifting capacity of 45 000 kg. It consists primarily of determining the ropes, pulleys and cable drum and assigning of appropriate engine, brakes, gearbox and clutch. The work also contains strength calculation and suggested dimensions of main parts of sheave block, like the pin hook block, crossbeam, hook nut and rope pulleys, which are delivered with drawing documentation along with drawing of sheave block and piece list.
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Grab Dredger
Kubánek, Jan ; Smutek, Josef (referee) ; Škopán, Miroslav (advisor)
When soluting the contruction of a grab dredger we will deal with suitable solution with reference to its using and capacity, possibilites of its setting in low temperatures and incidental aplication of the exchangeable abrasion - resistant mouldings. There will be made a calculation of forces taking effect on a grab dredger and a check calculation of the chosen structural parts.
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Stroke mechanism of crane trolley
Julínek, Petr ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
This bachelor´s thesis deals with proposal basic parameters of stroke mechanism of crane trolley for the weights 16 000 kg. At work is proposed to rope mean, rope drum dimensions, dimensions of pulleys, motor, gearbox, bearing deposit. Individual chapters provide justification for choice of devices.
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Differential tackle
Poliak, Daniel ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals with the design and strength calculation of the differential hoist. The chain block is self-locking with a load capacity of 400 kg and a lifting height of 4750 mm. The design is projected with safety consideration to the flexibility limit state. The project also includes computational report and drawing documentation.
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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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Tackles
Stanec, Stanislav ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The first part of the bachelor‘s thesis contains background research of constructions and the basic calculations of the tackles. In the second part there is worked out a design and calculation the tackle of Archimedes on the basis of the suitably chosen parameters. Drawing documentation is attached to this thesis.
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Solution technology multiple groove guide pulley.
Teplý, Radek ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
This essay discusses the production technology of multiple-grooved pulley and evaluates the technology of construction, the choice of the semi-product and their possible variations for production. The next aim is to describe the choice of production technologies, the selection of tools, the composition of technological process and the composition of different ways of chip removal during production. The essay also presents an economic of batch-production and it defines the optimal ways of production with regards to production costs.
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