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Recovery winch for mobile machinen
Tichý, Štěpán ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
Bachelor’s thesis deals with design rope winch for mobile machines with a maximum pulling force of 20000 N. The work consists of technical report and drawings. Technical report includes a search of the current solution, designs and controls rope, rope drum, electromotor, gearbox and bearings. Next the work includes custom design of semiautomatic mechanical clutch with the calculation components of which it is composed. Design documentation includes component drawing and drawing the 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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Travelling Crab
Hrnko, Lukáš ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The thesis deals with the structural design of the lifting device for the travelling crab with 50,000 kg capacity and lift if the intended use of the crane is in heavy traffic. The thesis includes a proposal for a block-and-tackle which contains suggestion for a suitable diameter and type rope, the strength design of rope drum, the strength design of individual parts of blocks, the choice of a suitable electric motor, the gearbox and finally, the brakes. Strength calculation of the tackle block was the basis for elaboration of drawing documentation for set of tackle block and its selected parts.
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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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Stroke mechanism of crane trolley
Galas, Radovan ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
Bachelor's thesis deals with design of stroke mechanism of crane trolley loads for the weights which do not exceed 5 000 kg. This thesis divided into written and practical sections. Written part deals with the calculation of the principal dimensions of lifting and stress control of cable reel. In this work there are also given reasons for choosing certain key parts of the lifting mechanism, such as: electric motor, gearbox, etc. Prior to the calculations in each chapter there is usually located a short introduction of the topic. The practical part contains a drawing of the complete lifting mechanism, cable reel assembly and two production drawings.
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Conceptual design of bridge crane 50 tonne
Soukup, Lumír ; Pokorný, Přemysl (referee) ; Kubín, Martin (advisor)
This bachelor work is koncerned with concept propsal of traveller crane with tonnage 50 t. Work content proposal of crane runway girder, travelling wheel, rail and in calculators part is proposal of parts of traveling crab like the drum, guide and balancing pulley, cable, hook, wheels, whels bearing, travelling wheel, drive of traveling crab. In work is assembly drawing and production drawing of drum.
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Design of Lifting Mechanism of Crane
Sokol, Filip ; Malášek, Jiří (referee) ; Pokorný, Přemysl (advisor)
This bachelor thesis deals with design and calculation of the basic parts of lifting mechanism of double girder bridge crane. First part of thesis contains concept of solution. The second one is engaged in own design of individual components and their calculation. Third part contains strength calculation of cable drum.
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Block and Tackle
Hlaváč, Martin ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
This bachelor work concerned with solving and calculating lifting mechanism of special mobile crane (travel lift). It‘ s make construction analysis. Work has functional and partial solidity calculation. Work includes complete 3D model of block and trackle and design documentation.
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Nonlinear Response of Steel Structures on Statical Loading
Nezbedová, Anna ; Vlk, Zbyněk (referee) ; Kala, Zdeněk (advisor)
This paper deals with the nonlinear response of steel structures to static loads. There are formulas derived for nonlinear analysis compressed, bended and tension members. By compressed elements, there is described the issue of buckling, by the bended, it is lateral-torsional buckling and tension elements are cables. As an example there is an calculation of a suspension two spans pedestrian steel bridge under load action of asymetrical loads. As another possible calculation process, the finite elements method is described.
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Zabezpečení kvality horolezecké výzbroje
Zderadíček, Tomáš ; Chvojková, Helena (advisor)
Tato práce se zabývá posouzením bezpečnostních požadavků kladených na horolezecká lana a zhodnocením současných zkušebních metod při testování horolezeckých lan, vycházejících zejména z platné normy ČSN EN 892. Zároveň je záměrem upozornit na možná rizika, jež mohou vzniknout při běžném užívání, a zjistit, zda existují nové techniky v oblasti testování, které tato rizika zohledňují. Z důvodu pochopení funkce lana a horolezecké fyziky vůbec jsou po úvodní části nejprve vymezeny faktory, jež určují nároky v praxi na lano kladené, a také popsány prvky jistícího řetězce, které se jako celek podílejí na bezpečném zachycení pádu lezce.
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