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Design of the Shift Mechanism Dedicated for Electric Driven Cars
Capoušek, Josef ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
In this paper the problematic of the design of the shift mechanism for a multi-gear transmission is presented. Research part is focused on the recent electric drive units development and the application possibilities of multi-gear transmissions. Available studies shows a possible improvement in vehicle parameters, primarily a reduction in energy consumption and vehicle drive range. Design of the shift fork mechanism includes the conceptual design creation, the optimal variant choice based on a multi-criteria assessment, the structural design and the subsequent analysis of components and creation of a technical drawing of selected parts.
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Project of worm gear for lift mechanism
Otisk, Jan ; Malach, František (referee) ; Malášek, Jiří (advisor)
This graduation thesis dwells on a worm gear design for an elevator mechanism in an already existing wheel case with actuator unit S3 for elevator type BOV 320/0,63. The work includes dimensional and control calculation for the worm gear and as an attachment you will find spiral worm and worm gear drawing documentation, including its specific location.
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Modification of nanomanipulator used in electron microscope
Habarka, Ondrej ; Tkoč,, David (referee) ; Krejsa, Jiří (advisor)
Cílem této diplomové práce je zlepšit chování nanomanipulátoru, používaného v elektronovém mikroskopu, při vykonávaní nejmenších kroků pohybu. První částí je analýza mechanismu za účelem nalezení možných řešení problému. Dále se práce zabývá testováním řešení jako je optimalizace tuhosti předepínacích pružin mechanismu anebo změna mazání šnekového převodu mechanismu. Výsledkem práce je výběr nejvhodnějšího řešení problému na základě výsledků testů a následná modifikace nanomanipulátoru.
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Dynamic Behaviours of the C Axis Drive for Multifunction Cutting Center
Křepela, Jan ; Marek, Jiří (referee) ; Souček, Pavel (referee) ; Brychta, Zdeněk (referee) ; Singule, Vladislav (advisor)
his Disertation thesis involves the creating of the simulation model of the C axis drive over mentioned machine and them verification on the prototype of this machine. C axis is controlled with position feedback. Simulation model was created before the realisation of the machine prototype for the preliminary identification of the dynamic behaviours in the working cycles and them opportunity of the realisation this conception. C axis is constructed with worm gear and is controlled with help of Master-Slave drive. This torque drive eliminates the production backlash in the worm gear. The multifunction turning center, where is used this C axis, is determinate for heavy duty roughing cutting of the forged peaces, where is problem with dynamic stability of the cutting process. Simulation model includes the problems with multi-body mass system, friction on the worm gear, self locking, damping on the worm gear and the optimization of the parametrs for many regulators. Simulation model was verified on the prototype of the machine. Achieved results bring the new knowledge, which are used for simulation complicated machine nodes and this knowledge is used for research and developing of the similar mechatronics system.
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Design of the Shift Mechanism Dedicated for Electric Driven Cars
Capoušek, Josef ; Řehák, Kamil (referee) ; Prokop, Aleš (advisor)
In this paper the problematic of the design of the shift mechanism for a multi-gear transmission is presented. Research part is focused on the recent electric drive units development and the application possibilities of multi-gear transmissions. Available studies shows a possible improvement in vehicle parameters, primarily a reduction in energy consumption and vehicle drive range. Design of the shift fork mechanism includes the conceptual design creation, the optimal variant choice based on a multi-criteria assessment, the structural design and the subsequent analysis of components and creation of a technical drawing of selected parts.
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Progresivní konstrukce míchačky stavebních hmot
Brychta, Ondřej
In my thesis entitled Progressive design mixers of building materials are mainly concerned with the design and construction of a gravity mixer of building materials for home use. The first part focuses on the distribution of mixers according to various criteria. The second part deals with the actual design and construction of the mixer, the capital and the biggest problem is the implementation of the drive that I chose by a worm gear.
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Modification of nanomanipulator used in electron microscope
Habarka, Ondrej ; Tkoč,, David (referee) ; Krejsa, Jiří (advisor)
Cílem této diplomové práce je zlepšit chování nanomanipulátoru, používaného v elektronovém mikroskopu, při vykonávaní nejmenších kroků pohybu. První částí je analýza mechanismu za účelem nalezení možných řešení problému. Dále se práce zabývá testováním řešení jako je optimalizace tuhosti předepínacích pružin mechanismu anebo změna mazání šnekového převodu mechanismu. Výsledkem práce je výběr nejvhodnějšího řešení problému na základě výsledků testů a následná modifikace nanomanipulátoru.
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Dynamic Behaviours of the C Axis Drive for Multifunction Cutting Center
Křepela, Jan ; Marek, Jiří (referee) ; Souček, Pavel (referee) ; Brychta, Zdeněk (referee) ; Singule, Vladislav (advisor)
his Disertation thesis involves the creating of the simulation model of the C axis drive over mentioned machine and them verification on the prototype of this machine. C axis is controlled with position feedback. Simulation model was created before the realisation of the machine prototype for the preliminary identification of the dynamic behaviours in the working cycles and them opportunity of the realisation this conception. C axis is constructed with worm gear and is controlled with help of Master-Slave drive. This torque drive eliminates the production backlash in the worm gear. The multifunction turning center, where is used this C axis, is determinate for heavy duty roughing cutting of the forged peaces, where is problem with dynamic stability of the cutting process. Simulation model includes the problems with multi-body mass system, friction on the worm gear, self locking, damping on the worm gear and the optimization of the parametrs for many regulators. Simulation model was verified on the prototype of the machine. Achieved results bring the new knowledge, which are used for simulation complicated machine nodes and this knowledge is used for research and developing of the similar mechatronics system.
|
|
|
Project of worm gear for lift mechanism
Otisk, Jan ; Malach, František (referee) ; Malášek, Jiří (advisor)
This graduation thesis dwells on a worm gear design for an elevator mechanism in an already existing wheel case with actuator unit S3 for elevator type BOV 320/0,63. The work includes dimensional and control calculation for the worm gear and as an attachment you will find spiral worm and worm gear drawing documentation, including its specific location.
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