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Soustava těles s pasivním účinkem s brzdou
Genco, Ondřej ; Hájek, Petr (referee) ; Fuis, Vladimír (advisor)
This thesis deals with the solution of the body system using NNTP static theory model. The introductory part defines the basic magnitudes and concepts, describes the constraints and the types of passive effects. In the practical part, the influence of passive effects on different moving states in the particular system of the towed trolley is determined. Furthermore, two variants of mechanical friction brakes are designed and compared. The numerical values of unknown parameters are determined by solving the system of linear equations in Matlab.
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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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Collection of solved problems from statics II
ŠIMANOVÁ, Petra
The thesis is intended as a brief teaching text for the course Technical Mechanics I at the Faculty of Education of the University of South Bohemia in České Budějovice. It includes the following topics: truss structures, centre of gravity, passive resistances, friction, pulleys and pulley systems. The theory is supplemented by examples with annotated solutions, in the case of truss structures the numerical solution is accompanied by graphical solutions. The work can be used by the teachers of the subject in preparation for classes as well as by students in self-study or preparation for various exams or tests.
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Crane hook block - lifting capacity 25 tons
Šanca, Kristián ; Trčka, Tomáš (referee) ; Malášek, Jiří (advisor)
The crane block is the lower part of the hoist. It is designed to fulfill a load capacity of 25,000 kg, while being safe and as light as possible. The work describes the principle of the hoist. A design solution is chosen in which two ropes are wound on a drum. The calculation of the hoist is in the calculation part, the components of the hoist are further described and calculated, using basic strength calculations. Attached is a drawing of the assembly and important details.
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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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Soustava těles s pasivním účinkem s brzdou
Genco, Ondřej ; Hájek, Petr (referee) ; Fuis, Vladimír (advisor)
This thesis deals with the solution of the body system using NNTP static theory model. The introductory part defines the basic magnitudes and concepts, describes the constraints and the types of passive effects. In the practical part, the influence of passive effects on different moving states in the particular system of the towed trolley is determined. Furthermore, two variants of mechanical friction brakes are designed and compared. The numerical values of unknown parameters are determined by solving the system of linear equations in Matlab.
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Stroke mechanism of bridge crane
Tomeš, Jakub ; Sedláček, Martin (referee) ; Škopán, Miroslav (advisor)
The bachelor thesis deals with the design of bridge crane lifting gear for a load not exceeding 10,000 kg. The work includes the design of the basic parts of the lifting gear, such as rope diameter, rope drum and rollers. There is also included the choice of standardized parts such as electric motor, crane gearbox, flexible clutch or drum brake. The last chapter describe the strength calculation of the rope drum and the bearing life calculation together with the design of welds and tight pen. The output of the bachelor thesis is the drawings of the cable drum weld and the mechanism of the lifting mechanism.
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