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Stroke mechanism of crane trolley
Malár, Martin ; Pokorný, Přemysl (referee) ; Škopán, Miroslav (advisor)
This bachelor thesis deals with the design of the stroke mechanism of the crane trolley, maximum weight of loads is 16 000 kg. The work is divided into two parts: a written part and a practical part. In the written part of this work there are the main dimensions of lift and control cable drum strength solved. The calculation is subject to quantities that are given by assignment. Choice of the electric motor, gearbox and follow-up control of the stroke speed according to customer requirements is discussed further. The second part includes production drawings, in which are included the total set of the stroke mechanism and other assemblies and production drawings.
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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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Solution technology of production multiple groove guide pulley.
Bauer, Vít ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Solution technology of production multiple groove guide pulley, analysis pulley on the part of function, technology of construction, material of the body. Choice semi-finished product's, technology for production, way institute workpiece in machine. Proposal the machine, tools, preparations, helps and gauges. Making of working process, verification the cutting conditions on compliance specified funds middle arithmetical deviation profile. Evaluation of production methods according to the production loads.
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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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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
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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