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Service platform of boring machine
Šebela, Michal ; Hulánek, Martin (referee) ; Brandejs, Jan (advisor)
The Diploma’s thesis deals with a construction design of a service platform for a horizontal boring machine. Input parameters are cabin dimensions, length and velocity of lift and shift. In the first part of the thesis is design arrangement solved. The lift is solved by a rack and a pinion. By the lift is drive design and gear calculation performed. Shift of the service platform is done by toothed belt. Air distribution with pneumatic parts choice is included in this thesis. Next part is divided to supporting frame and cabin design. It is made by welded profiles, in which a stress-strength analysis is performed. The last part of the thesis is divided to linear guide design. A part of this thesis is a drawing of an assembly facility and a movie about this service platform in a real service.
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System design vertical drive elevator, including the possibility of control for the storage system LLH
Tichý, Jiří ; Dlesk, Daniel (referee) ; Škopán, Miroslav (advisor)
The aim of this master's thesis are the engineering design of solutions for vertical elevator drive storage systém LLH – Schwerlast. The project is composed of technical report ans drawing documentation. The Technical report deals with storage and handling bar material, methods of control and manipulation of storage systems and structural design. In the structural part are designed draft drive and its main parts. The main parts of drive are checked using structural analysis. The drawing documentation is composed of assembly drawing, manufacturing dravings and welded frame drawing.
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Drop forging of pinion
Cvrček, Jan ; Dvořák, Milan (referee) ; Štroner, Marek (advisor)
The final project has been elaborated in a frame of Bachelor’s studies branch Manufacturing technology assesses design of production pinion by method of die forging. The pinion is manufactured from alloyed structural steel 14 220 (1.7131). Size of production is set on 100 000 pieces per year. The pinion will be forged on the vertical forging press LMZ 1000 A with forming force 10 MN. The forging is formed in two operations. Forming tool is manufactured from alloyed instrumental steel 19 552 (1.2343). In the last chapter of the project is described the price comparison and costs for manufacture of die forging and machining.
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The drive of the feed coordinate portal machining center using a rack and pinion
Bartoš, Michal ; Knoflíček, Radek (referee) ; Marek, Jiří (advisor)
This diploma thesis deals with the design the drive of the feed coordinate portal machining center using a gear rack and pinion. The thesis contains researches from the area of CNC machining centers for non-rotating parts and sliding linear systems. Market analysis of portal machining centers of type of lower gantry with a gear rack and pinion was done. Furthermore, several design variants are proposed in terms of positioning the drive on the machine. These variants were further compared and the best option was selected for the specified machine. Subsequently, the technical calculation of the drive is performed and individual parameters and structural elements are proposed. The thesis also includes a 3D model of the proposed variant and the required drawing documentation.
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The design of plate horizontal boring mill
Vondrák, Pavel ; Holub, Michal (referee) ; Pavlík, Jan (advisor)
This master's thesis describes a design of horizontal boring mills. The first part is dedicated to description of the various types of these machines and their accessories. There are also described drives and linear guideways. There is a list of plate horizontal boring mills of Czech and foreign producers. The second part of this thesis deals with designing of comlete machine's bed and its slides (X-axis). Casting of the bed and its slides are designed for universal machining to the use of rolling or hydrostatic guideways. The drive of X-axis is also designed and it works in master/slave mode. The final result of this master's thesis is a 3D model of the machine in two variants, with hydrostatic and rolling quideways. Machining drawings of the bed for both variants are attached to this thesis.
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Drop forging of pinion
Sklenář, Zdeněk ; Kopřiva, Miloslav (referee) ; Štroner, Marek (advisor)
The literary study of production of pinion with drop forging of metal 14 220 is proposal in the final project. The literary study includes knowledge from metal hot forming. With regard to high production of 190 000 pieces for year was choosen the technology of drop forging. The vertical forging press LMZ 1600 (made by ŠMERAL Brno a.s.) was choosen for proposal technology.
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Design and modernization of automotive starter
Bednář, Vojtěch ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
The work deals with modernization of an automobile starter. In first and second part, we can find the analysis of types of starters according to construction and the analysis of gear of a starter. In third part, there is the analysis of electromagnetic layout of direct current motor with permanent magnets according to given parameters which is the gear of given starter.
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Research on Methods for Quantifying Attenuation due to the Wet Antenna Effect
Skoumal, Vladimír ; Dvořák, Radim (referee) ; Bubniak, Milan (advisor)
The topic is the calculation of precipitation using commercial microwave links. Since current techniques in meteorology are not perfect, this way of measurement can be a suitable complement to meteorological instruments. One of the current problems is wet antenna attenuation. This is an excess attenuation that affects the final precipitation calculation. In the first part of the thesis, microwave connections are generally described, how they look, how they are put into operation and their important parameters. Furthermore, this section contains a theoretical analysis of precipitation, various types of measurement of this quantity, and a description of the possibilities of measuring precipitation using microwave links. An important theoretical part is the description of the methods for calculating the WAA or wet antenna attenuation, where the Schleiss, Leijnse and Pastorek methods are described. Furthermore, freely usable libraries are described in the work, which contain functions for calculations of precipitation using microwave links. The last theoretical part describes the Telcorain application, which is used to calculate precipitation at this work. The second part of this work contains the changes made in the code of the Telcorain application. It also contains a comparison of WAA methods for calculating precipitation as well as variously selected sets of microwave links for different rain events and development development of own method for WAA calculation.
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Design of linear clock controlled by Arduino Uno
Hladík, Ondřej ; Strecker, Zbyněk (referee) ; Svoboda, Petr (advisor)
The bachelor thesis deals with designing and realization of functional sample of linear clock with analog scale using 3D printing. Firstly, the structural arrangement of available devices and the selection of usable electronic components are solved based on the required parameters. After that, the work contains a design solution of printed parts, where the linear motion mechanism is designed as a rack and pinion and the feed of scales is solved using a sliding linear guide. The work includes a wiring diagram of used electronic parts. The Arduino Uno board takes care of the clock control, for which a program was created according to the required properties. In the end, the functionality on the created sample was verified. The work is accompanied by assembly drawings and drawings of the main parts and the complete program.
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Production of pinion
Matsiuk, Oleksandra ; Lidmila, Zdeněk (referee) ; Podaný, Kamil (advisor)
The bachelor's thesis deals with the design of the production of pinion – small gear made of steel 14 220. After analyzing all possible production methods, the technology of die forging on a hammer in the single-die was chosen. Based on a literature study of the issue and relevant calculations, a semi-finished product with a length of 151,8 mm and a diameter of 63 mm was designed. Hammer KHZ 4A with forming energy of 50 kJ was chosen. A single-die was constructed on the basis of valid state standards. Auxiliary machines were also chosen for production – band saw, induction heater, shearing press and drum blaster.
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