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Vehicle Hydropneumatic Systems
Ševčík, Michal ; Míša, Jiří (referee) ; Blaťák, Ondřej (advisor)
This work deals with hydropneumatic suspension systems. It is a narrow development branch of suspension that has a stable position in the current market. It brings with it a number of key functions that can be essential to the main workload of certain machinery. The downside of these features is often the design and financial complexity of the system. For this reason, the system is mainly compared with the classical concept of conventional suspension systems with steel springs. The wide range of functions that the system can provide is also described. Based on the theoretical knowledge, the concept of a hydropneumatic suspension system for the Ford TRUCKS 1833 DC is proposed. A series of calculations are performed to determine the basic parameters of the system. The obtained results are used to select system components from the current market offer. The hydraulic cylinders, which are one of the main components of the hydropneumatic units, are designed specifically for the vehicle based on strength calculations.
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Hydraulic press 10 000 kN
Machara, Matúš ; Dokoupil, Vladimír (referee) ; Omes, Jiří (advisor)
This thesis deals with the design of a hydraulic press for metal forming. In the first part, common solutions of the main structural nodes of hydraulic presses were mentioned. In the second part, the main structural groups of the machine, such as the hydraulic cylinder, frame, and ram, were designed in detail. An unconventional type of frame was chosen for this machine, namely a folded frame. The latter was chosen due to the potential simplification of machine production. An innovative placement of the hydraulic cylinder was also designed for this type of frame. In the conclusion, several findings were mentioned regarding the aforementioned hydraulic cylinder placement and some observations were provided for a person who would design a similar machine.
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Construction design hydraulic press brake
Stránský, Jaroslav ; Holub, Michal (referee) ; Pavlík, Jan (advisor)
This thesis is divided into several chapters. First two chapters after introduction are written as search type. In next part I devoted to detailed design of functional mechanisms of linearly moving parts of press brake. For the construction of stop mechanism I dealt with conversion types as ball screw, pinion with rack and timing belts. There is also quite thorough calculation part in ball screw and pinion with rack issue. I have also dealt with the necessary bending force and then designed hydraulic cylinders. Elaboration of machine frame with safety features is included.
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Design of hydraulic press brake
Machara, Matúš ; Tůma, Zdeněk (referee) ; Pavlík, Jan (advisor)
The thesis is focused in the first part on the issue of bending and various types of press brakes In the second part, a mechanism was designed in detail to control the ram press brake during bending. The individual situations that may occur at work have been developed. Based on them and on the theoretical consideration of the deformation of individual parts of the invented solution, the individual components were dimensioned. A possible solution of the basic construction of the whole press brake according to the assignment parameters was also outlined. Finally, a recommendation for the production of this solution was mentioned.
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Construction of hydraulic wood-splitting machine
Šimčík, Jaroslav ; Opl, Miroslav (referee) ; Matějka, Petr (advisor)
Bc. Jaroslav Simcik Construction of hydraulic wood-splitting machine DP, Institute of production machines, systems and robotics, 2010, p. 60, fig. 30, appendices 7, This master ´s thesis is concerned with the wood-processing technology with a focus on the construction of hydraulic wood splitter machine with a force 120 kN.
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Desk for splitting semiautomatic
Jurák, Pavel ; Vlašic, František (referee) ; Dvořáček, Jiří (advisor)
The subject of the bachelor thesis is the design of the working table, which will ensure the stem lifting and its transport to the splitting semi-automat. Lifting of stem with weight up to 500 kg is ensured by lifting arms. Then, the stem is moved to the splitting semi-automatic by means of a belt conveyor. The design of the frame is designed to withstand a load of 5000 N. The lowest security has k = 1.2 according to the strength analysis. The table frame can be easily folded using a hydraulic cylinder. Thanks to this we can easily mount the frame behind a splitter semi-automatic and transport both devices at the same time.
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Design of single-purpose machine for pressing bearings in pulleys
Roupec, Michal ; Továrek, David (referee) ; Bradáč, František (advisor)
Purpose of this thesis is to make constructional modification of single-purpose pressing machine for Huisman Konstrukce, s.r.o. company. Present machine is non-operational and not enough powerful for present requests of workshop. Intended modifications are to describe present condition of machine, find present requirements and design simple modifications. All modifications are checked by calculations and sketched in shop drawings. There were also made alternative options of modification to show machine more versatile and automatic.
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Assembly Design of Ball-Joint Test Bench Hydraulic Unit
Novák, Jiří ; Beran, Martin (referee) ; Ramík, Pavel (advisor)
The main object of this thesis is the proposal of fitting (setting) hydraulic cylinder into test equipment of ball-joints of company TRW-DAS Dačice a.s. The thesis includes a short review about testing ball-joint of above company and about liquid mechanisms. Also, there are analyzed demands for fitting (setting) hydraulic cylinder into testing equipment. In the main part of this thesis there is described my own constructive proposal with numeric calculations in proper software. In enclosure there are all analytical calculations with productive drawings and an assembly drawing.
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Sliding and Lifting Platform
Kučo, Stanislav ; Suchomel, Petr (referee) ; Škopán, Miroslav (advisor)
This thesis describes a project of a mobile stage device that will be used for a concert tour of Lucie. The first part characterizes the given task and expounds description and function of the device itself. The second part focuses on the design concept of supporting frames. This is followed by design and calculation of all mechanisms, actuators and construction of individual moving parts of a sliding and lifting platform. The last part verifies stability of the whole construction in accordance with appropriate standards. The thesis also contains technical documentation, which is to be found in appendix.
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Lifting equipment for a tractor
Zálešák, Jiří ; Pokorný, Prokop (referee) ; Kašpárek, Jaroslav (advisor)
This thesis deals with the design of the device carried by a tractor which will be used for material handling. Aggregation is solved using the three - point hitch of the tractor. The load carrying capacity is 1000 kg. The thesis contains a 3D design, a constructional solution, which is based on strength and control calculations, and technical drawings.
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