National Repository of Grey Literature 10 records found  Search took 0.00 seconds. 
Design of a micromanipulator for repairs of printed circuit boards
Kopřiva, Pavel ; Skácel, Josef (referee) ; Otáhal, Alexandr (advisor)
This thesis deals with design and construction of micromanipulator based on pantographic mechanism with electronic control. The theoretical part presents possible principles of construction and control of micromanipulators. The practical part contains design of the pantographic mechanism. Furthermore, stepper motor based electrical drive section was designed and appropriate control circuits and power supply were selected. Finally, the micromanipulator was constructed.
A study of the principles and design of the kinematic structure pantograph lifting dental chair
Krčma, Jan ; Kočiš, Petr (referee) ; Kolíbal, Zdeněk (advisor)
Bachelor's thesis describes the kinematic and force analysis of special kinematic strictures handling dental chair. The work was solved several variants of forces on the mechanism and mutual appreciation. Also they defined load into individual elements, and to establish the resulting internal effects for the selected components. Force was performed mathematical simulations of movement and the subsequent lifting of choice for drive mechanism.
Welding of pantograph parts according to standard ISO 15085
Ondříšek, Jan ; Daněk, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The aim of this project is to examine the welding of the upper arm of the current collector - the pantograph of the electric locomotive according the the CSN EN 15085 norm. The first part of this thesis dealt with the elaboration of all needed WPS and with the proposal of the current preparation that is going to be realized. The experimental part dealt with the practical execution of the welding as defined in the first part. The macrostructure of weldings and the process of hardening have been evaluated based on the welding samples.
Design of an extensible platform for mobile robot
Šumšal, Zdeněk ; Krejčí, Petr (referee) ; Krejsa, Jiří (advisor)
This thesis is about the design of the telescopic platform. which should be fasten on robot called Breach. Purpose of this platform is to carry another equipment like sensors, cameras or manipulator. The platform has to provide chiefly the high demands on load capacity. Another part of the thesis is design of mechanism placed on this telescopic platform, or just on the robot Breach. This mechanism has to load up small subject on the top part of the platform and then unload it on chosen place. Only thing defined for this subjekt is maximal weight of 2 kilograms, but other parameters aren´t specified. Construction is therefore focused on maximal versatility of this mechanism.
Infrastructure for electric buses
Adamec, Matěj ; Rekem, Jakub (referee) ; Štětina, Josef (advisor)
The aim of this bachelor thesis is to examine the charging infrastructure of electric buses from the point of view of dynamically charged buses, trolleybuses, statically charged battery electric buses and their combination in the form of partial buses. In the case of the trolleybus infrastructure, the method of powering the contact wire traction, the properties of the contact wire are described, and the operation of partial buses are not omitted. For the charging infrastructure of battery buses, a detailed evaluation of the methods of connection to the charging station, charging modes and an overview of offered charging solutions from selected companies is performed. Considerable attention is paid to the possibilities of standardization and automation of connections to charging stations. In the final chapter, an approximate calculation of the optimal capacity of the battery storage for the selected line and the subsequent evaluation of the charging solution of the operating electric buses on this line is performed.
Design of a micromanipulator for repairs of printed circuit boards
Kopřiva, Pavel ; Skácel, Josef (referee) ; Otáhal, Alexandr (advisor)
This thesis deals with design and construction of micromanipulator based on pantographic mechanism with electronic control. The theoretical part presents possible principles of construction and control of micromanipulators. The practical part contains design of the pantographic mechanism. Furthermore, stepper motor based electrical drive section was designed and appropriate control circuits and power supply were selected. Finally, the micromanipulator was constructed.
Infrastructure for electric buses
Adamec, Matěj ; Rekem, Jakub (referee) ; Štětina, Josef (advisor)
The aim of this bachelor thesis is to examine the charging infrastructure of electric buses from the point of view of dynamically charged buses, trolleybuses, statically charged battery electric buses and their combination in the form of partial buses. In the case of the trolleybus infrastructure, the method of powering the contact wire traction, the properties of the contact wire are described, and the operation of partial buses are not omitted. For the charging infrastructure of battery buses, a detailed evaluation of the methods of connection to the charging station, charging modes and an overview of offered charging solutions from selected companies is performed. Considerable attention is paid to the possibilities of standardization and automation of connections to charging stations. In the final chapter, an approximate calculation of the optimal capacity of the battery storage for the selected line and the subsequent evaluation of the charging solution of the operating electric buses on this line is performed.
Design of an extensible platform for mobile robot
Šumšal, Zdeněk ; Krejčí, Petr (referee) ; Krejsa, Jiří (advisor)
This thesis is about the design of the telescopic platform. which should be fasten on robot called Breach. Purpose of this platform is to carry another equipment like sensors, cameras or manipulator. The platform has to provide chiefly the high demands on load capacity. Another part of the thesis is design of mechanism placed on this telescopic platform, or just on the robot Breach. This mechanism has to load up small subject on the top part of the platform and then unload it on chosen place. Only thing defined for this subjekt is maximal weight of 2 kilograms, but other parameters aren´t specified. Construction is therefore focused on maximal versatility of this mechanism.
Welding of pantograph parts according to standard ISO 15085
Ondříšek, Jan ; Daněk, Ladislav (referee) ; Kubíček, Jaroslav (advisor)
The aim of this project is to examine the welding of the upper arm of the current collector - the pantograph of the electric locomotive according the the CSN EN 15085 norm. The first part of this thesis dealt with the elaboration of all needed WPS and with the proposal of the current preparation that is going to be realized. The experimental part dealt with the practical execution of the welding as defined in the first part. The macrostructure of weldings and the process of hardening have been evaluated based on the welding samples.
A study of the principles and design of the kinematic structure pantograph lifting dental chair
Krčma, Jan ; Kočiš, Petr (referee) ; Kolíbal, Zdeněk (advisor)
Bachelor's thesis describes the kinematic and force analysis of special kinematic strictures handling dental chair. The work was solved several variants of forces on the mechanism and mutual appreciation. Also they defined load into individual elements, and to establish the resulting internal effects for the selected components. Force was performed mathematical simulations of movement and the subsequent lifting of choice for drive mechanism.

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