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Gravitational roller conveyor for transport of piece material
Navrátil, Zdeněk ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
The aim of this bachelor work is to project gravitational roller route which has to serve as transporter of the lump material. In this case as transporter of boxes in the production line without positive drive. By force of engaged parameters I have to determine the main dimensions, calculation of the shaft’s stronghold and funkcional calculation. Than implement the design documentation from the calculated values.
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Design of electric tackle
Bádr, Miroslav ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
Purposes work was create technical documentation to an electrically driven tackle with actuated by hand undercarriage. Was booked up fundamental parameters like bearing, stroke and hoisting speed. First was effected calculation of load on pinion necks and an idle pulley. Subsequently was effected calculation for right election of a rope, an idle pulley, a rope drum and bearings for the rope drum. Up this calculation followed calculation for a right election of an electric motor and a shaft clutch. The documentation was complemented with pictures and tablets, that are seted near single decisive knots of the tackle. To the documentation was creationed how a suggested arrangement drawing so single subassemblies drawings.
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Cable reel
Bunda, Petr ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
The work deals with construction of electrical cable reel with lifting capacity 800 kg, height of lift 20 m and lift speed 10 m/min. In the work is solved design of cable, cable drum and its placing in frame, strenght calculations of the drum and its shafts, check calculations of bearings and keys, choice of suitable drive and its connection to the drum and fastening the whole to the base. Between parts of the work belong component drawings, parts list and assembly dravings with the main measurements and assembly diagram.
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Trenchless Technologies of Communication Building, Microtunneling
Javůrek, František ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
The target of submitted work was to sum up a view of current methods and the machines for the building of communications by trenchless technologies and to conduct a critical analysis each technologies parallely. Trenchless methods belong to the high-developing divisions nowadays. The major advantage these ones is serious decline unfavourable impacts which have common building of transportation along the route and the environment especially through the cities and the villages. The base of these technologies of building were described and depicted by picture firstly. Then the companies were divided and the parameters of machines had been compiled into the charts.
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Crawler undercarriage for building machines
Richtr, Pavel ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
The point of the bachelor’s thesis is to recapitulate pieces of knowledge about types of crawler undercarriages to the weight of 10 tons, make survey of application various types of undercarriages for concrete types of machines, to give and confront properties of undercarriages and tracks in the light of weight of machine and operating specifications.
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Model Ranges Analysis of Wheel Loaders
Durna, Pavel ; Pokorný, Jan (referee) ; Kašpárek, Jaroslav (advisor)
The bachelor thesis deals with the division and parameters of the wheel loaders. Nowadays, there is an important representation of the bigger or smaller producers of the wheel loaders at the market. According to the size, weight and machine performance of the machine (wheel loader) is there a group of compact wheel loader, which is excelent because of manipulation, and a group of heavy line wheel loaders, which are usually used in quarry etc..
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Model Ranges Analysis of Excavators more than 20 tons
Šimíček, Václav ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
The aim of this study is to work out the summary of present building mobile machines – excavators. The analysis contains technical and operating parameters of over 20 tons heavy excavater from home and foreign manufactures. Excavators are dividet into groups according to their weight. In each group there are compared qualities of the machines and then tables and graphs will be created.
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