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Cordless drill powered hobby car
Valla, Tomáš ; Böhm, Michael (referee) ; Štětina, Josef (advisor)
This bachelor thesis deals with the design of a cordless drill powered hobby car. The cordless drill must remain usable for normal use. The theoretical part deals with the description of the historical development of childrens’ cars from the first manufactured models to modern pedal and electric carts. The next section describes the origin of cordless drills. The following section shows today's options for purchasing prams. The market has greatly enriched, and it is practically impossible not to choose. The construction part is focused on the design of individual components and a list of purchased parts. It also includes basic calculations for the selected chain and the designed structure.
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Roll assembly system for automatic strapping
Havelka, Michal ; Marek, Tomáš (referee) ; Knoflíček, Radek (advisor)
This bachelor’s thesis is dealing with the design of system for rolls of technical textiles, which assembles them into horizontal layer. Possible structural drafts are mentioned here and one selected draft is solved. For the first I am dealing with major dimensions, the choice of rollers, calculation of the required engine power and the calculation of the chain drive. Finally I calculated pneumatic cylinders and checked the deflection of used rollers.
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Design of elevator for pallets
Hájek, Lukáš ; Winkler, Tomáš (referee) ; Škopán, Miroslav (advisor)
The diploma thesis is focused on the construction design of elevator for pallets with car seats weighing 200 kg. This device is proposed for vertical transport of the load between two working positions which are separated by 6m. Part of the pallet hoist is a roller conveyor attached on a lifting frame. The roller conveyor allows loading and unloading pallets from the fixed roller conveyors in the lower and upper station. There are the functional calculations of important parts, strength control of traction belt and shaft of driving pulley drum. By FEM (Finite Element Method) is detected stress distribution of the lifting frame. Parts of the annex are the manufacturing drawings of the lifting frame, shaft of driving drum, the driving station and drawing of the whole assembly vertical conveyor. Furthermore, the timing diagram function for one cycle, risk analysis and FMEA.
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Creeper
Suran, Dávid ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
This bachelor thesis deals the calculation and the construction of the creeper for technological production line. It includes description of different types of chains used in the industry and calculation of proposed chain drive. This thesis include a drawing documentation which is composed of assembly, sub-assembly drawing of the creeper and manufacturing drawing of drive wheel.
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Chain Drive for Valvetrains
Vodička, Richard ; Píštěk, Václav (referee) ; Novotný, Pavel (advisor)
The objective of this bachelor‘s thesis is obtaining the general review about the way of driving valvetrains. Introduction is devoting the driving of distributive mechanism of combustion engines . The text of bachelor‘s thesis is splitted on three parts. The first part is explaining the principle of functioning enginetrain. Briefly are described individual assembling of ventil distributor of engines and its distinction depending on the way of its drive. The main attention is devoted to the chain drive of valvetrain, i.e. distinction of types chain drive, which are necessary for its correct functioning. And also, are described the main parts of valvetrain of the engine and the other possibilities of its driving. The second part of bachelor‘s thesis is comparising positives and negatives of chain drives of valvetrains with the othe one’s. In the third part of bachelor‘s thesis are presented the examples of application of the chain drives in the valvetrains in the four wheel drives machines, cars and motorcycles. In the conclusions is specified the contribution of the chain drive of valvetrains and evaluation of bachelor‘s thesis.
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