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Accumulating energy wood head
Pokorný, Radek ; Hloušek, David (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis deals with the design and custom concept of a cutting head for the removal of small seeding trees located on the loading crane of a forestry machine. The device is designed as an extension of the service machine while the loading crane with the cutting head is part of lumber mining machinery or a forwarder. The work is focused on the design of the selected unit.
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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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The splitting equipment for a skid steer loader
Jagnešák, Peter ; Zeizinger, Lukáš (referee) ; Kašpárek, Jaroslav (advisor)
The aim of this bachelor thesis is a brief, critical search of the types of skid steer loader log splitters on the market and the creation of a custom conceptual design for the specified parameters. The thesis is divided into five chapters. The first chapter concentrates on the market research, the second chapter describes the custom design and the third chapter is a force analysis to check the functionality of the splitter. In the fourth chapter the strength check of the important parts is solved and finally in the fifth chapter the stability of the whole machine is checked.
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Study of mulch-laying machines
Derka, Lukáš ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor’s thesis of research type deal with study of agricultural and forestry mulch-laying machines. Mulching machines carried by tractor machine. The analyses will be aimed at constructive processing, technical parameters and working conditions of machines with working part horizontal axis of domestic and foreign manufacturers.
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Industrial entrance gate
Vintr, Pavel ; Hloska, Jiří (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis describes the design of industrial entrance gate. It is a telescopic sliding door with passage width of 6000 mm. The aim of this thesis is to create the concept, design and calculation of functional dimensions, selection of drive and then to set power and performance ratios in the drive for operational use.
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The engine unit of forestry harvestor
Petr, Tomáš ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
At the beginning of bachelor´s thesis is description of harvester and its main parts. Then research of four six – wheeled forestry harvesters was developed. Features of compared harvesters are similar to the task. The next point was theoretical part with equations needed for calculation of rolling and inertial resistances. Based on the theory an enumeration of powers of particular driving modes was done. Then performances for work devices of harvester were calculated. From the single values were determined total powers of machine, which were transparently organized into table and graph. Based on the maximal total power were chosen three appropriate engines. From the three was selected the most suitable one.
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Derrick crane
Aulehla, Jiří ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deal with construction design of derrick crane. Lining length is 5000 mm, lift height 6800 mm and crane capacity 1200 kg. The thesis contains proposals for major structural elements, strength calculations and selection of suitable hoist. Involves also drawings in the form of a crane assembly and detailed drawing of arm.
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Adjustable belt conveyor - driving head
Machatka, Martin ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
The aim of the present bachelor thesis was to design a driving head for an adjustable belt conveyor intended for brown coal transportation. According to the required parameters for the belt conveyor, functional calculation was carried out, technical parameters of the driving head were defined and its construction proposed. The entire drawing of the designed driving head and essential detailed drawings are included in this thesis.
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Traverser
Zubr, Tomáš ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
In this work is solved construction design of transport hub (traverser) between roller conveyor and chain conveyor for transportation EURO pallet. Between conveyors is right angle. The content of the bachelor thesis is functional construction design with functional calculation of basic parameters. Then drawing documentation complemented 3D model of traverser.
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