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Crane crab of bridge rack crane of load 30 t
 Kolegar, Vojtěch ; Bartušek, Filip (referee) ; Škopán, Miroslav (advisor)
This diploma thesis deals with mechanical design of crane trolley of overhead bridge rack crane with maximum capacity of 30 000 kg used for manipulation with steel coils. Diploma thesis is divided to several chapters. The beginning is dedicated to brief survey and definition of overhead cranes. First main chapter deals with draft and functional calculation of fundamental parameters of hoist mechanism and continues by selection and verification of individual parts of hoist mechanism. Second main chapter deals with design and description of construction of upper rotational frame of crane trolley, guiding pillar, and handling mechanism. Description of design of all construction is followed by determination of several loads of each construction part including the load factors for the correct dimensioning of their construction. The last chapter is static strength analysis of mentioned parts of bridge rack crane. A description of the procedure for creating a computational model, scenarios of load conditions is made and the whole chapter ends with evaluation of the results of the static strength analysis. The output of thesis are calculation report of hoist mechanism and his components, technical drawings of hoist mechanism, weldment of handling mechanism and upper rotational frame with guiding pillar and handling mechanism.
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