This thesis is about design of reducer for six-cylinder aircraft engine. There are processed every parts of reducer and the assembly with crankshaft, torsional vibration of complete assembly and calculation of service life of every individual part.

The thesis concentrates on the design of limited slip differential of the racing car. It describes the method of designing the model of space for differential, using the 3D ATOS scanner and Pro/ENGINEER software environment. The next part of the thesis illustrates the process of designing the model of mass-produced open differential. The main attention is paid to the design of both versions of clutch limited slip differential and also to the analysis of problematic issues of each analyzed component. Further on, there is a stress analysis of some selected parts: pressure ring, differential case and their comparison before and after their optimization.

Final thesis on the design of the drive of a cutting mechanical two-point crank press with a nominal force of 6300 kN. After the theoretical definition of the area of mechanical crank presses and their drives at the beginning of the work, the actual design solution follows. The main idea of the design is the drive arrangement with the concurrent axis of the clutch shaft. The supplied torque is distributed on two longitudinally mounted drive units via a two-sided bevel gear. Solution of the construction design is aimed at enabling workspace variability while simultaneously unifying the maximum number of drive components. Drawing documentation of selected components and assemblies is the part of the thesis.

The diploma thesis deals with the design of rotary manipulator for positioning weldments, which could be 5000 mm long and weight 500 kg. The beginning of the thesis presents the research of welding manipulators which could be founded on the market. Three variants of the positioner are proposed in the next section. The resulting variant is optimized using strength analysis in ANSYS software. Furthermore, two variants of drive, by hand drive or electric motor, are presented. The manipulator is interconnected in a single part using a designed frame constructure. Critical points of the manipulator are checked by strength calculation. The final part contains the risk analysis of the proposed manipulator.

THE THESIS FOCUSES ON A CONSTRUCTION DESIGN OF A NEW DRILLING HEAD DESIGNED TO REPLACE THE ORIGINAL ONE IN A MULTIDRILL HYNDAGA DRILLING RING. THE SUBSTITUTION IS SUPPOSED TO PROVIDE A SOLUTION TO THE SHORTCOMINGS OF THE CURRENTLY USED DRILLING HEAD. THE THESIS ANALYSES PARAMETERS OBTAINED FROM THE MANUFACTURER, NEW PRODUCTION REQUIREMENTS AND PROPOSES TWO TYPES OF MOTORS INNOVATIVE METHODS HAD BEEN IMPLEMENTED IN CALCULATIONS OF CONCEPTUAL PARAMETERS OF THE NECESSARY COMPONENTS. THE OUTCOME IS A NEW F-TYPE DRILLING HEAD.