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Stroke mechanism of bridge crane 16 t
Kolegar, Vojtěch ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
This bachelor thesis deals with design of hoist mechanism of bridge crane with maximum load capacity 16 000 kg. First part consists of critical survey of existing designs made by several companies with subsequent choice of suitable conception. Main part consists of calculation of fundamental parameters of hoist mechanism that are important for definition and selection of further parts of mechanism like steel rope, pulleys and pulley block with hook. Other selected and checked parts of hoist mechanism are rope drum, electromotor, gearbox and brake. Last part of this bachelor thesis consists of selection of bearing, bearing housing, spring of output gearbox shaft, pin and welds. The output of this bachelor thesis are technical drawings of hoist mechanism and weldment of rope drum.
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Stroke mechanism of bridge crane
Wiesenberg, Adam ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
The aim of this bachelor thesis is to develop a design of the lifting mechanism of a workshop bridge crane for a load capacity of 32,000 kg. The introductory part of the work is focused on a brief introduction to the issue, then there is a critical search of similar existing design solutions with related chapters dealing with the evaluation of concepts and selection of their own solutions and then follows the chapter Classification of crane and hoist. The second part of the work deals with the design and calculation of the main parameters of the lifting mechanism, including the choice of steel rope, rope hoists and calculation of the size of the rope drum. In other parts, the design and inspection of the rope drum, the selection of individual components of the lifting mechanism, such as the electric motor, gearbox, brake and clutches. The conclusion of the thesis contains the selection and method of bearing inspection, the design of the drum pin and the procedure of inspection of the tight spring joint. An integral part of the work is also the drawing documentation of the overall assembly of the lifting mechanism and the welding subassembly of the rope drum.
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Workshop gantry crane with a load capacity of 300 kg
Vícha, Ondřej ; Zeizinger, Lukáš (referee) ; Škopán, Miroslav (advisor)
This Bachelor thesis deals with worktop gantry crane with a load capacity of 300kg. In the research part of the thesis there is an overview of existing construction solutions for smaller worktop cranes with load capacity up to 1500 kg. In second part there is a design, construction solution and construction plan of the specific crane. The construction plan includes various calculations used during the design phase of the crane as well as drawings of crane parts.
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Stroke mechanism of bridge crane
Jirásek, Jiří ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
This bachelor thesis deals with the design of the lifting mechanism of the crane cat, for a bridge storage crane with a load capacity of 8,000 kg. The thesis contains a critical research of similar existing solutions and the selection of the appropriate concept. The design includes calculations of the basic parameters of the stroke, and based on them selects appropriate rope, pulleys, and design of the rope drum. Furthermore, there are calculated and selected suitable components of the stroke mechanism such as electric motor, clutch, brake and gearbox. The last part deals with the design of the bearing, the drum pin and the calculation of the shaft key. The output of the work is the technical drawing of the whole assembly of the mechanism and the welding subassembly of the rope drum.
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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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Stroke mechanism of bridge crane
Ujčík, Miroslav ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
This thesis deals with the design of a stroke mechanism of the bridge crane with capacity of load 12 000 kg, which will have served as a plant crane with regular use. The first part of this thesis is devoted to the critical research of similar existing solutions, on the bases of which a suitable order of the arrangement is chosen. The other part of the thesis is devoted to the calculation of the main dimensions of the stroke, on the basis of which the individual components are selected, this are hoist elements of the rope system, such as roller, rope and rope drum, in which the fatigue calculation is performed. Another part of the thesis tackles design and parts calculation of the lifting mechanism, such as electric motor, clutch, brake and gearbox. The final part of the thesis is devoted to the calculation and control of the drum flail, bearing and tension calculation of the parallel key. Constituent part of this thesis is also drawings´ documentation, which enclosed drawing of the lifting mechanism assembly and the welding subassembly as well.
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Stroke mechanism of bridge crane
Drábík, Michal ; Sedláček, Martin (referee) ; Škopán, Miroslav (advisor)
This bachelor thesis is focused on the design stroke mechanism of bridge crane with load capacity of 10 000kg. The thesis contains a critical research of today-manufactured crane trolleys and a selection of a suitable conception. Part of the design are calculations of the lifting mechanism base parts, for example: rope diameter, pulleys diameters, complete dimensions of the rope drum, selection and the design of the electric motor, gearbox, brake, frequency inverter, gear and drum coupling. Last chapter is focused on the strength calculation of the rope drum, durability of the bearing, weld strength examination and radial load. Part of the thesis is the lifting mechanism assembly drawing documentations and the rope drum welding assembly.
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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.
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Bridge crane one-girder
Malár, Martin ; Malach, František (referee) ; Malášek, Jiří (advisor)
This master’s thesis is focused on the construction design of one-girder bridge crane for the LUVE – PLAST company. Construction design of the crane was developed in cooperation with the K-TECHNIK company, which carried out the production and installation of the crane bridge and the crane runway. The basic required parameters of the crane are: load capacity 8 000 kg, range 16 900 mm, minimum lift 4 650 mm. The crane, which construction is proposed in this thesis will be used for the exchange of forms of injection molding machines. The forms weight is about 7 000 kg. The aim of this work was to create a technical report with an analysis of construction choices solution with important technical and strength calculations. Calculations were made according to the Czech state standards and the literature dealing with the construction of bridge cranes. Further, the strength check of selected parts was made.
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