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	The drive of the feed coordinate portal machining center through ball screw Dvořák, David ; Knoflíček, Radek (referee) ; Marek, Jiří (advisor) Master´s thesis is focused on portal milling machine driven by ball screw and nut. There is a limit where it is suitable to use a driven screw or driven nut. Both variants are solved based on specified X-axis travel distance. In last part is solved the design of support long shaft ball screw driven by nut. The work also includes 3D CAD model of both variants and drawing documentation. Detailed record
	The drive of the feed coordinate portal machining center through pinion and rack Malásek, Petr ; Novotný, Lubomír (referee) ; Marek, Jiří (advisor) This thesis is dealing with determining of technical and economical limits of axis X of portal milling machine driven by gear rack and pinion. And designing drive of axis like this. In chapter overview of the current state of knowledge are researched options of drive systems of linear axis, primarily of using ball screw and couple of pinion and gear rack. Basic parameters of axis X portal milling machines, options of measuring, guiding of axis and electric motors. Then the limit suitability of using pinion and gear rack is determined. In next chapters is designed few variations of arrangements of drives and selected the best one. This arrangement is then designed. Detailed record
	The drive of the feed coordinate portal machining center through ball screw Dvořák, David ; Knoflíček, Radek (referee) ; Marek, Jiří (advisor) Master´s thesis is focused on portal milling machine driven by ball screw and nut. There is a limit where it is suitable to use a driven screw or driven nut. Both variants are solved based on specified X-axis travel distance. In last part is solved the design of support long shaft ball screw driven by nut. The work also includes 3D CAD model of both variants and drawing documentation. Detailed record
	The drive of the feed coordinate portal machining center through pinion and rack Malásek, Petr ; Novotný, Lubomír (referee) ; Marek, Jiří (advisor) This thesis is dealing with determining of technical and economical limits of axis X of portal milling machine driven by gear rack and pinion. And designing drive of axis like this. In chapter overview of the current state of knowledge are researched options of drive systems of linear axis, primarily of using ball screw and couple of pinion and gear rack. Basic parameters of axis X portal milling machines, options of measuring, guiding of axis and electric motors. Then the limit suitability of using pinion and gear rack is determined. In next chapters is designed few variations of arrangements of drives and selected the best one. This arrangement is then designed. Detailed record

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