National Repository of Grey Literature 68 records found  previous11 - 20nextend  jump to record: Search took 0.02 seconds. 
Stroke mechanism of crane trolley
Julínek, Petr ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
This bachelor´s thesis deals with proposal basic parameters of stroke mechanism of crane trolley for the weights 16 000 kg. At work is proposed to rope mean, rope drum dimensions, dimensions of pulleys, motor, gearbox, bearing deposit. Individual chapters provide justification for choice of devices.
Solution technology of two groove guide pulley production.
Pokladník, Robert ; Osička, Karel (referee) ; Kalivoda, Milan (advisor)
Technology compiling two groove pulley making for two types of billets. As a billets is used in both cases a cast iron EN-GJL-250. The technological process solves production of both variants from designing the billets to trans-mission to the storeroom. The production is realized through cutting operation by CNC machines. The tools are selected with cutting tip. Finaly both variants are compared from economical perspective.
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.
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.
Drive model for EC motor elevator analysis
Javořík, Zdeněk ; Koláčný, Josef (referee) ; Vondruš, Jiří (advisor)
The master thesis encompasses the possibilities of position evaluation and drive control with the aid of SMI work enviroment. Furthermore the thesis is directed to create a program through a designed control algorithm. The work is realised on the elevator model with electronically commuted motor. An incremental scanner is used as the position sensor. The motor control unit is set up and programmed in the SmartMotorInterface software. In the next part, measurements with altered parameters are conducted. On the basis of these measurements the influence of parameters on the positioning process and its accuracy is evaluated. At the conclusion of the work, a design of laboratory task for educational purposes is created. The laboratory task is composed in such a way, that students would become familiar with the SMI work enviroment and would be able to practicaly test the setup of incremental position sensor and motor control with the aid of entered algorithm.
Design of the upper beam two columned shelf stacker
Kuděla, Jan ; Kozok, Zbigněv (referee) ; Škopán, Miroslav (advisor)
This master thesis deals with a concept of two columned shelf stacker’s upper beam. The first part contains a research of storage systems used in logistics and a description of the shelf stack’s basic parts. The second part is dedicated to the draft of the pulley arrangement with a rope calculation, pulleys and shafts, in the same the draft of the pulley attachment to the rope leading to the counterweights. It is followed by the concept of the couple winch drive ensues synchronized with the electronic cardan. The final part depicts the dynamic analysis of the lifting truck’s movement in the dependence on the load size and distribution respecting the dynamic effect of the counterweight act.
Lifting gear of gantry crane
Švéda, Jan ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
This bachelor thesis pursues construction and calculation of lifting mechanism of a mobile marine gantry crane intended for hoisting boats with maximum weight of four hundred metric tons. Also necessary solidness calculations of block and tackle are done. Three-dimensional model and design documentation are included.
Auxiliary crab for overhead foundry crane
Adam, Petr ; Nezbeda, Jiří (referee) ; Kašpárek, Jaroslav (advisor)
This master thesis deals with issue design of crab trolley. Concretely is acted about auxiliary crab trolley with required capacity 65 000 kg. This crab is on overhead crane, which is situated at hall of foundry. In particular chapters is processed design of lifting mechanism and travelling mechanism, which is amended to strength control of frame. This whole leads to output solutions, which is drawing documentation.
Travelling Crab
Bernard, Vladislav ; Špička, Jiří (referee) ; Malášek, Jiří (advisor)
This work dissert about proposal and calculation hoisting device travelling crab, intended for tonnage 50 000 kg. For this tonnage there're performed pertinent strenght calculations, concerning journal of pullies, side plate, crossbeam and crane hook. Part of work is proposal desirable electric motor, gear - box, brakes, jaw clutch and bearings. In work are also descriptions of hoisting apparatus and descriptions of construction parts of sheave block. Defined are also main dimensions ancillary components for desired hoisting. Work is finished with complete drawing documentation of sheave block travelling crab.
Solution technology of production multiple groove guide pulley.
Procházka, Zdeněk ; Sedlák, Josef (referee) ; Kalivoda, Milan (advisor)
Solution technology of production multiple groove pulley, comparison of the technology of construction, choice of technology and semi-finished products, choice of cutting materials, analysis of manufacture clamping. Comparison of production possibilities at the application of two different semi-finished products on multi-purpose engines.Making of working process at the application of machine centre and comparison of the effectiveness of its application.

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