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Accurate positioning of pneumatic drives
Volf, Marek ; Nevrlý, Josef (referee) ; Marada, Tomáš (advisor)
Thesis starts with brief overview of the present role of pneumatic actuators. Further research is carried out in modelling and control of pneumatic actuators. A basic overview of thermodynamic laws is presented. These laws are used to assemble a mathematical model of the pneumatic drive. Subsequently the identification of model parameters is shown. A controller is propřed using fuzzy PID algorithms. Results are compared with the conventional PID controller.
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Chalder for grinder Jupiter 125
Novák, Aleš ; Jansa, Jiří (referee) ; Blecha, Radim (advisor)
Thesis deal with proposal construction Chalder for centreless grinding machine Jupiter 125. Chalder is designed for workpiece with maximum average 12 mm, maximum longitude 120 mm and mass 0,1 kg. In the thesis are described components that were used at solving and intended time exchanges workpiece, the economics estimation and processed needed design documentation.
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Equipment for tensioning of mesh on the disc filter segments
Baňoch, Ondřej ; Maňas, Pavel (referee) ; Brandejs, Jan (advisor)
The master thesis deals with mechanical design of device used for stretching and fixing filtration fabric on plastics frames segments for disc filtration device. The thesis was solved in cooperation with IN-EKO Team company that deals with development and manufacturing of filter units. Solution is connected to already ended project FR-T13/699 (end of the year 2013). At the beginning is described the field of filtration devices in broader context with description of the overall functionality these devices and description of used elements in final design. Opening text is followed by concretization of task list and descriptions of concepts variants which are based on FEM analysis of behavior of stretched filtration fabric. The best concept is processed in detail as mechanical design along with pneumatic and PLC control design. Critical part of the design is stretching clamp which was experimentally verified by using experimental clamp in combination with testing machine. The whole design is developed for mass production of disc segments for disc filter which is projected in to the level of the automation.
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Suggestion of a workshop service platform for pneumobil
Suchý, Pavel ; Škopán, Miroslav (referee) ; Hloušek, David (advisor)
The subject of this bachelor’s thesis is a construction design of a mobile scissor lift based on lifting height, platform plate sizes and load capacity. The first part of this thesis studies a comparison of similar lifts. The second part of this thesis deals with a calculation of forces in the lift and a construction of partial components. The pneumatic cylinder is selected for the lifting and a pneumatic circuit is designed. Finally, the drawings of the assembly, drawings of the subassembly and drawing of the partial components are processed.
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The construction of electromagnet testing device
Vlasák, František ; Blecha, Radim (referee) ; Knoflíček, Radek (advisor)
Master thesis describes a single-purpose machine design, that is used for testing a basic features of proportional solenoid. The design is created in cooperation with company NUVIA a.s. and contains mechanical solution that is processed in respect with ergonomic requirements, safety and overall costs. Machine concept is affected by customer requirements, whose name, as well as real parameters of the product will not be published, because of non-disclosure agreement.
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Belt conveyors drives
Kryška, Martin ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
The aim of the bachelor thesis was to analyse the drives used for belt conveyors and to determine their characteristics and suitability for use in different conditions. Functional calculation of the belt conveyor was made on the basis of the given parameters and a suitable drive was selected. The thesis includes a drawing of the pneumatic drive.
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Optimalization construction tube lifter of spinner machine
Jeník, Jan ; Pavlík, Jan (referee) ; Knoflíček, Radek (advisor)
The first part of this thesis describes the current technologies of mechanical spin-ning. This is a ring, rotor and air-jet spinning. The product of spinning machines is yarn, the basic material for production textile. The next section describes in detail the current state of the node manipulator lifter tube on spinning machine TORNADO J20, by concern RIETER. It describes the structure, kinematics, duty cycle and requirements for the manipulator. The following optimization options which are described more options for solutions of individual functions of the manipulator, on the end is selected by multi-criteria analysis. The best solution that is elaborate in the next section. The author has created 3-D model optimized lifter tube. Positioning mechanism maintains the current kinematics, it is very similar. But gripper was designed as a passive, thus reduce the load positioning mechanism. Optimization was performed primarily to reduce overall production costs and to reduce weight manipulator. The conclusion is a comparison of current and new solutions. There are also eco-nomic recovery to.
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Design of single-purpose machine for washer stamping
Šverák, Petr ; Krbalová, Maria (referee) ; Blecha, Petr (advisor)
This bachelor’s thesis deals with design and construction of single-purpose machine for washer stamping. Manufacturing operation is described, solution is suggested and technical parameters of machine are selected. Then machine is designed in CAD system, basic construct calculations are performed and choice of purchased parts is justified.
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Bidirectional pneumatic stepper motor
Veselý, Václav ; Pavlík, Jan (referee) ; Kolíbal, Zdeněk (advisor)
The diploma thesis Bidirectional pneumatic stepper motor concentrates on a step shaft rotation in the presented scheme of a kinematic mechanism. The introductory research part of the diploma thesis lists various types of pneumatic components and the analysis of elements in pneumatic circuits is provided. The following section of the thesis concentrates on designing a new scheme of a pneumatic stepper and construction of a functional mock-up. The final part of the diploma thesis offers a summary and final evaluation of the design and offers subsequent alterations for its further usage.
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Safety of automated industrial valves in operating conditions
Kryštof, Ondřej ; Trávníček, Petr (referee) ; Kotek, Luboš (advisor)
Choosing suitable and safe valve with accessories depends on general specifications for plant. Using valve for on/off, throttling, back-flow prevention, etc., pressure drop is related with Kv value or leakages from piping systems are main factors for properly valve selection. Valve have to resist chemicals and substances that may change the state, temperature and its fluctuation, pressure, corrosion and erosion. This properties determine pressure class, temperature resistance, connection into pipe and sealing material as gland packing, seats, seal between flange etc. This and other specification, listed in this thesis, can help determine suitable type of valve. This thesis deals construction design of valve and accessories as well. The last chapters are focused on calculation of safety valve and selection safe and appropriate control valve with accessories.
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