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Undercarriage of the tracked excavators and dozers
Hampl, Pavel ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis deals with the analysis of the tracked undercarriage of excavators and dozers. The first part defines basic information about the tracked excavators and dozers. The second part is devoted to the analysis of the current concept of the tracked undercarriage of excavators and dozers. The third part compares the used drive systems and mechanisms with regard to efficiency and economy.
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Mixed-flow submersible water pump driven by hydrostatic motor
Para, Marcel ; Ranuša, Matúš (referee) ; Nevrlý, Josef (advisor)
Bachelor thesis solves the problem of a submersible, diagonal hydrostatic pump. This study describes the basic principles of hydraulics and equipment. The possibility of engaging the hydrostatic system as an amphibious vehicle is investigated in the Bachelor thesis. The work is written in cooperation with the sponsor of HYDRAULIC RESEARCH CENTRE, spol. S.r.o., which is part of SPL Holding., Inc.
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Determination of efficiency of hydraulic drive with recuperation
Kobza, Michal ; Robenek, Dětřich (referee) ; Nevrlý, Josef (advisor)
In the first part of the thesis is determined efficacy criterion for the individual operating modes of the experimental stand with energy recovery and subsequently are evaluated the records of individual measurements. Energy savings are calculated with using energy recovery. The second part describes the process of digitizing relative fuel consumption map of the engine. Results are confronted with a real application engine in the road roller Ammann AP 240 H. In addition, the master thesis describes the creation of hydrostatic converter block in the program MATLAB/Simulink 2012b. Creating block can be used in the development of simulation models.
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Test bench for analysis of energy recovery in experimental vehicle
Indruch, Jiří ; Čermák, Jan (referee) ; Nevrlý, Josef (advisor)
The diploma thesis deals with design of an experimental test bench for recovery energy simulation at machines with hydrostatic energy transmission. This work describes choice of connection and selection of hydrostatic and other components. A first part of the thesis deals with calculation and design of the flywheel whose is its rotational kinetic energy corresponds in a certain scale to translational kinetic energy of the experimental vehicle. The thesis outlines the efficiency of transformation of rotational kinetic energy to pressure energy its accumulation and subsequent conversion back to rotational kinetic energy. Precise determination of the effectiveness of hydrostatic recovery is one of the objectives of experiments that will be implemented at the test bench. The task of the measurement and physical-technical analysis to be conducted at the manufactured test bench is primarily to obtain data at for the precise control of the hydrostatic energy recovery system to maximize its efficiency.
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Hydrostatic drive of multi-purpose loader DAPPER
Vydra, Tomáš ; Merenda, Lukáš (referee) ; Škopán, Miroslav (advisor)
This thesis deals with design of hydrostatic drive for multipurpose loader and tool carrier DAPPER. At the beginning is research of different basic concepts and modern solutions to the problem, aided by a detailed description of competitive machine in the same performance category. Extensive comparison with other producers is included in the annexes to this thesis. Furthermore, a theoretical driving characteristic and its appropriateness is examined further on the basis of two model situations. The calculations of the individual components of the hydraulic circuit precedes drive kinematics analysis of articulated machine frame, on it final conception of hydrostatic drive is chosen. Firstly hydromotors and hydogenerator are chosen on the grounds of calculations then hydraulic hoses, filters and flow divider. Next chapters are aimed to calculations of hydraulic losses and thermal calculation of hydraulic circuit. Final part deals with introduction the final characteristics of drive. The practical parts of the work are assembly drawings with main power components and hydraulic schematic of drive.
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Tracked vehicle for transport of the pallets
Blažek, Martin ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis deals with the design of a remotely controlled tracked vehicle for the transport of pallets on unstable ground. The aim of the work is to make a short research of similar tracked transport machines and to design concept including choice of vehicle drive, design of pallet lifting equipment and strength calculations of sub-parts.
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Concept of the autonomous tracked vehicle for the agriculture
Masnica, Daniel ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor´s thesis deals with the design of the concept of an autonomous tracked vehicle for agriculture. In the introduction is brief research of similar autonomous vehicles. The next part of the thesis is the conceptual design, dimensional and performance calculations. Based on the calculation, the individual components of the vehicle and the retrospective strength calculation of the individual parts. The result of this work is a concept that corresponds to all specified parameters.
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Hydrostatické systémy stavebních strojů pro zemní práce
Fajstl, Karel
This bachelor's thesis is about description of the hydrostatic systems of construction machinery used for earthworks. The work is divided into four main parts. The first part de-scribes the development of hydraulics mechanisms of construction machinery. In the second part, an analysis of the design solutions of individual hydrostatic systems of hydraulic exca-vators is carried out, while the individual hydraulic circuits used to drive the drive, the rotat-ing mechanism of the uppercariage and the working mechanism of the excavator are pre-sented. In this section, control elements, pumps and motors used in hydraulic excavator drives are also discussed in more detail. In the third part, the problem of diagnostic methods of parts of hydraulic systems is presented. The final part of the work is devoted to emerging modern trends in the field of hydrostatic systems of construction machinery.
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Tracked vehicle for transport of the pallets
Blažek, Martin ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis deals with the design of a remotely controlled tracked vehicle for the transport of pallets on unstable ground. The aim of the work is to make a short research of similar tracked transport machines and to design concept including choice of vehicle drive, design of pallet lifting equipment and strength calculations of sub-parts.
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Concept of the autonomous tracked vehicle for the agriculture
Masnica, Daniel ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor´s thesis deals with the design of the concept of an autonomous tracked vehicle for agriculture. In the introduction is brief research of similar autonomous vehicles. The next part of the thesis is the conceptual design, dimensional and performance calculations. Based on the calculation, the individual components of the vehicle and the retrospective strength calculation of the individual parts. The result of this work is a concept that corresponds to all specified parameters.
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