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Dedicated machine for forming of jerrican spouts
Podolan, Luděk ; Ing.Pavel Cícha, Evropský polytechnický institut, Kunovice (referee) ; Novák, Vítězslav (advisor)
The aim of this diploma thesis is detail description of theory, design process and final realization of single-purpose machine for pressing canister funnels. Theoretical section of this work covers manufacturing standards of the electrical cabinets, options for the single-purpose machine control with focus on the programmable logic controller e.g. PLC, PLC control program concept with definition of the main alarm states and description of two types of electrical cabinet. Practical part contains description of the electrical cabinet, its block diagram, photo documentation of the wiring (chapter 4.), chosen PLC type, its advantages and detail program description using Ladder diagram notation, communication with operator realized with touch LCD panel, programming environment for this LCD panel and program realization process. Finalized machine description and its photo documentation in manufacturing process is covered in the end. This diploma thesis is based and extends previously successfully defended semester project.
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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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The bridge crane's travel mechanism
Žid, Miroslav ; Nezbeda, Jiří (referee) ; Škopán, Miroslav (advisor)
The aim of this master thesis is to design replacing the central drive of the overhead crane with dislocated drives. It´s a tong crane with the lifting capacity of 63 tons, located inside the hall. In the thesis is processed functional calculation of two types of drives, the associated types of brakes and the coupling element. Next there is a strength control of a new mechanism seat and a selected components. This whole leads to the output, which is the drawing documentation.
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The influence of the frequency converter on the life and damage of bearings
Sukovatý, Adam ; Krejčí, Petr (referee) ; Nahodil, Petr (advisor)
This thesis deals with the effect of frequency inverter on the lifetime of roller bearings. The measurement has been carried out on the frequency inverter and induction motor by Siemens in the Switchgear laboratory of Fakulty of elektrical engineering and communication. Data has been recorded and processed on Adash VA4 Pro analyzer. Methods of measuring RMS values and frequency analysis of vibration and current were used for the analysis. Based on the mutual similarity of frequency spectrum, the presence of the high frequency capacitive current in the bearings has been proven. To prevent this, possible solutions have been presented. In the second part of the experiment an effect of changing pulse width modulation (PWM) on vibration was examined. The goal was to make a basic analysis and to provide background material for further research.
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Control of dry wall tape (DWT) rewinder
Bis, Jan ; Jirgl, Miroslav (referee) ; Pásek, Jan (advisor)
This thesis deals with a description of the industrial machine of the DWT (drywall tape) rewinder. The winder rewinds and cuts the drywall tape tape into smaller tapes, that are then sold. The first part contains a description of the winder, its structure and functions of its individual parts. The second part contains a description of the control system and the power wiring of winder. The next section contains a description of programming and setting of PLC, frequency inverters, and touch panel. Some modifications are then described when putting the winder into operation. The winder has been successfully implemented and built into a continuous shift operation. However, the development of the rewinder continues to improve its features and user-friendliness.
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Control of manipulator model
Golis, Štefan ; Hynčica, Ondřej (referee) ; Štohl, Radek (advisor)
This work is dedicated to control the manipulator model using the PLC machine and servo frequency inverters. Normally this is a problem of controlling the three axes of movement in 3D space. Program and the application must of course be processed correctly with regard to the safety. Therefore, the use of equipment safety features such as light curtains, the end position switches and stop-button. PLC must communicate with frequency inverters via SERCOS interface and safety module via the DeviceNet bus. All components with terminals, circuit breakers, the source of 24 V and voltage filter are effectively distributed in the cabinet.
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Dynamic characteristics drive with frequency inverter
Loveček, Vladimír ; Marada, Tomáš (referee) ; Voldán, Jiří (advisor)
This bachelor thesis deals with a proposal of measurement equipment and software equipment for evaluation of the dynamic characteristics of the drive controlled by frequency inverter, and with subsequent measurement and evaluation. Torque measurements are made using the incremental encoder and evaluated on the basis of mechanical characteristics by development environment MATLAB.
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A frequency inverter based on Texas Instruments DSP
Vašíček, Adam ; Macho, Tomáš (referee) ; Valach, Soběslav (advisor)
This bachelor thesis is focused on control algorithms optimization, especially using the Texas Instruments c2000 digital signal controllers family. The first part roughly describes an AC induction motor controlling and regulation techniques. Later on the control software optimization basics are covered. Particular attention is payed for trigonometric functions which are mandatory for such software. Next part shows practical use of the previously described optimization techniques using an example of the scalar frequency inverter control even going down to the assembly instructions level. At the end the results themselves as well as facing the invested price of optimization are discussed.
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Design of elevator for pallets
Hájek, Lukáš ; Winkler, Tomáš (referee) ; Škopán, Miroslav (advisor)
The diploma thesis is focused on the construction design of elevator for pallets with car seats weighing 200 kg. This device is proposed for vertical transport of the load between two working positions which are separated by 6m. Part of the pallet hoist is a roller conveyor attached on a lifting frame. The roller conveyor allows loading and unloading pallets from the fixed roller conveyors in the lower and upper station. There are the functional calculations of important parts, strength control of traction belt and shaft of driving pulley drum. By FEM (Finite Element Method) is detected stress distribution of the lifting frame. Parts of the annex are the manufacturing drawings of the lifting frame, shaft of driving drum, the driving station and drawing of the whole assembly vertical conveyor. Furthermore, the timing diagram function for one cycle, risk analysis and FMEA.
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Stroke mechanism of crane trolley
Juda, Lukáš ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
Bachelor thesis deals with design of stroke mechanism of crane trolley with load capacity 16 000 kg. The thesis contains calculations of basic parameters of stroke (rope diameter, diameters of pulleys, overall dimensions of rope drum, calculation of electric motor, parallel gearbox, frequency inverter, gear couplings and brake of hoist mechanism), strength check of rope drum and calculation of drum bearing. Part of the thesis is assembly drawing especially assembly drawing of complete hoist mechanism and weldment drawing of rope drum.
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