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Hydraulic linear drive for paralell kinematics structures of robots
Hrbáček, Jakub ; Holub, Michal (referee) ; Knoflíček, Radek (advisor)
This master’s thesis deals with the design of hydraulic linear drive for parallel kinematics structures of robots, which is not standardly used for these kind of robots. In the part of background research it deals with modern applications of these robots in profession and possible construction components, conventional or nonconventional ones. The master’s thesis further describes the procedure of construction the hydraulic drive. At first the linear hydromotor is designed and further the whole hydraulic circuit. The whole drive is processed in appropriate software program as a 3D model, from witch the assembly drawings is worked out.
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Hydraulic cleaner-machine
Homoláč, Zdeněk ; Malach, František (referee) ; Malášek, Jiří (advisor)
The diploma thesis deals with construction design mechanically rake screens with hydraulic drive. The diploma thesis is composet of several parts, in a first past is an overwiew of mechanical method of cleaning screams. The second part deals of diploma thesis deals with product design rakes raking mechanism. The third part is an analysis of machine parts and describe their functions. It is then carried out stress analysis using fine element methods (FEM) in the program I-deas.
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Design of mobile horizontal wood-splitting machine
Dressler, Jan ; Škopán, Miroslav (referee) ; Knoflíček, Radek (advisor)
This thesis shows making of documentation for production powerfull wood-splitting machine for hardest forestal work. There are researched and soluted all phases of pre-production machine's lifecycle, also means analysis of conception, potentional risks and failures analysis and also definition of required properties. Based on those properties and results of analyses is possible to setting up condition which should be satisfied. At following part are descripted and shown features of machine-design . Main feature (component) of machine is its frame, also there are strenght analysis of frame. Machine movement features are mainly hydraulics pistons which are powered by asynchronous engine, whith alternative possibility movement by wheel tractor power-take off shaft or hydraulics output. There are performed all important properties. Working safety questions and high endurability of machine shold be also performed. At the end of work is realised conception and design study of forestal production system for wood processing with one universal source of energy – wheeled tractor.
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Solution alternatives of lifting platform
Hájek, Ondřej ; Malach, František (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is to analyze the possibility of mechanical design platform lifts. Proposal lifting platform with mechanical and hydraulic drive with a capacity of 3500 kg and lift 600 mm. The work is mainly focused on design and strength calculation mechanism and structure. Proposal hydraulic circuits and the development drawings for both types of drive.
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Drive reconstruction of turning crane trolley
Banaś, Jiří ; Dzimko, Marián (referee) ; Brandejs, Jan (advisor)
The diploma thesis include improvement proposal of drive slewing 12,5t grabbing crane. Second part this work deal with causes which in the past lead to failure the supporting pole of grab crane by using FEM analysis. Detected causes are applied to new supporting pole of grabbing crane and comparison both results. In the last part of the thesis is constructional, technological and economical summary.
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The engine unit of a loader
Koksa, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The work is focused on loading construction machinery and their engine units. The theoretical background research introduces the domain of wheeled loaders. Subsequently, three specific machines, which are available on the market, are selected from a similar model range. They are selected according to the specified technical criteria. Individual power requirements for various modes of operation are calculated according to a suitable algorithm. These power requirements are summed up to obtain the needed total power. Based on the calculated value of the total power the suitable engines from various producers are proposed at the end of this work. This was the goal of the work.
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Device for towing vehicles in crash tests
Šmalec, Petr ; Pavlík, Jan (referee) ; Bilík, Martin (advisor)
Bachelor thesis is focused on device for towing vehicles in crash tests. Deals, what the crash test is and clarify some independent organisation for occupant safety. Next is solved the problem of propulsion system for devices and tell us the propulsion systems used in the vehicle research centers. At the end of thesis concept of device for towing two vehicles against each other is designed.
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Hydraulic drives of hoisting drums
Vořech, Jiří ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
This bachelor´s thesis deals with hydraulic drives of hoisting drums, their sorting and description of their parts and components. It also pays attention to comparison of particular possibilities of hoisting drums with hydraulic drive rationale. A 3D model of a suitable example of technical solution for the purpose of explaining the principle of the function is a part of this work as well as a hydraulic circuit diagram.
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Material Handling Platform
Bíza, Pavel ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
The main subject of this thesis is the construction design of material handling platform with hydraulic drive with a loading capacity of 2 500 kg and lifting capacity of 1 800 mm. First of all, the thesis contains the selection of a suitable variant of lifting mechanism, static analysis and determination of the maximum load of the mechanism. The next section includes strength calculations of particular elements of the mechanism with regard to selected dimensions and loading. In the end, the calculation of the hydraulic drive and design of a hydraulic circuit for this drive are presented. The final output of the thesis is a drawing of the assembly of the platform.
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Design of hydraulic travel of reaper`s drive unit
Galda, Martin ; Černý, Michal (referee) ; Brandejs, Jan (advisor)
The goal of my bachelor work is Design of hydraulic travel of reaper`s drive unit on exploration of facts with these parameters: independent wheel drive, fluent speed regulation in both forward and reverse motion, speed 0-10 km/h. Briggs&Stratton I/C OHV AVS engine is used for working the machine. It's output is 8,46 kW. Dakr, s.r.o, company demanded, that approximately 20% of engines output is to be used for driving.
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