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Conceptual design of tower crane 8 tonne
Honc, Robert ; Pokorný, Přemysl (referee) ; Kubín, Martin (advisor)
The Bachelor thesis deals with conceptual design of tower crane with lifting capacity 8 [t] and with design of its basic parametrs. Thesis includes design of the basic parametrs of the crane, conceptual design of the crane, crane lifting capacity calculations depending on the lenght of radius, plotting this dependence and drawing of crane.
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Analysis of the trailers safety features
Pavliš, František ; Kubín, Martin (referee) ; Kašpárek, Jaroslav (advisor)
This diploma thesis deal with safety components of trailer and semitrailer technology, especially the elements for underrun protection. The first part deals with the legislative requirements on which safety elements are based. In another part are mentioned the construction solutions of underrun protection devices from the portfolio of company SVAN Chrudim s.r.o. Finally, the computational part is processed to verify sufficient strength of underpass protections.
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Analysis of carriage of Top Drive of drilling tower
Kříž, Jakub ; Kubín, Martin (referee) ; Pokorný, Přemysl (advisor)
The subject of this diploma thesis is determination of the cause of crack formation at the carriage Top drive for MND Drilling & Services company. The aim of the diploma thesis is to analyze the load states of the component. Furthermore, the aim is to create a computational model and boundary conditions and to create suggestions of improvements leading to the elimination of cracks. And finally, to evaluate the results of construction improvements..
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Methods of assessing the damage to motor vehicles
Rousek, Aleš ; Kubín, Martin (referee) ; Škopán, Miroslav (advisor)
Work is focused on assessing various options repairs damaged vehicles with regard to their reintroduction into service. Part of this work is the general procedure of valuation of used motor vehicles and damaged vehicles. For example, are also applied various methods of access to vehicle repair and subsequently evaluated their results. The available methods were used: repair to authorized service center with original parts, servicing non-genuine with non-original components and repair yourself, using components from other damaged vehicles.
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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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Slot adjusting mechanism of cone crusher
Huňka, Jan ; Kubín, Martin (referee) ; Pokorný, Přemysl (advisor)
This master’s thesis deals with the obtuse-angled cone crushers especially about design of the individual parts of the adjustment mechanism. Most space is devoted to functional calculation and subsequent technical construction of the new design of obtuse-angled crusher where the output setting is adjusted using the motion thread and hydraulic locking system for compensating the thread clearance. The parameters are chosen with regard to the already established older types of cone crushers produced by PSP Engineering, a.s. An inseparable part is the calculation verifying the functionality of the motion thread and gearing. Another essential part of this work are stress analysis of the slot adjusting mechanism design using finite element method and considering two states - adjusting of the slot and crushing itself.
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Fatigue analysis and life of steel structures
Dostál, Petr ; Šťastný, Antonín (referee) ; Kubín, Martin (advisor)
The thesis is focused on solutions fatigue´s analysis and consequently on persistence steel structures of engineering and building aspects. The theoretical part describes the influence of cyclic fatigue in steel structures, describe the basic characteristics of fatigue and its application, a description of the fatigue life curves and their subsequent mathematical approximation of both engineering and the building terms. The study also includes the calculation of fatigue real parts (structure) in mechanical engineering, depending on the operating conditions of the structure. The work is further prediction of the life of steel structures using damage accumulation hypothesis according to the nominal stress. The practical part composes an example of life calculation of drawbar tractor-trailer bogie suspension of engineering and building terms. An example serves as an algorithm solving the life prediction of engineering and building terms, and reveals the possibility of solving the life of engineering structures in terms of building. The comparison of both approaches is done in conclusion.
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Trailer for the building machinery
Kramoliš, Robert ; Kubín, Martin (referee) ; Pokorný, Přemysl (advisor)
In this diploma thesis, I deal with conception and strength analysis of lowbed detachable gooseneck trailer for construction machinery. First part of thesis is about trailers used these days with brief legal requirements for this device. Rest of the thesis contains construction of trailer, creation of finite element model, and presentation of achieved results. This diploma thesis contains drawing documentation.
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Analysis of the trailers safety features
Pavliš, František ; Kubín, Martin (referee) ; Kašpárek, Jaroslav (advisor)
This diploma thesis deal with safety components of trailer and semitrailer technology, especially the elements for underrun protection. The first part deals with the legislative requirements on which safety elements are based. In another part are mentioned the construction solutions of underrun protection devices from the portfolio of company SVAN Chrudim s.r.o. Finally, the computational part is processed to verify sufficient strength of underpass protections.
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Analysis the safety mechanism of the trailers
Pantůček, Michal ; Kubín, Martin (referee) ; Kašpárek, Jaroslav (advisor)
This diploma thesis is engaged in the analysis of a safety mechanism, which is a part of a truck trailer. This mechanism provides a safe and firm connection of a container to the trailer. Primarily abroll containers according to German standard DIN 30 722 are being transported. The introductory part of the thesis deals with the current traffic condition and the accident rate in the Czech Republic. Legislative requirements for safety elements of trailer technology for road transportation are further defined. They are followed by a recherche of industrial solutions for securing mechanisms. Consequently calculations to obtain necessary securing force were performed. An analysis of the mechanism kinematics was carried out then. A structural check of selected mechanism elements was carried out following the kinematics check. Further, an optimalization of a transom design was carried out followed by another structural check. The structural checks were carried out using both the analytical method and the finite element method. In conclusion design documentation was elaborated. This diploma thesis was elaborated in cooperation with the SVAN Chrudim s.r.o.
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