National Repository of Grey Literature 738 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Tracked vehicle for a transport
Vašíř, Vít ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor thesis focuses on the conceptual design of a tracked chassis for the transport of unified palletising boxes. The initial chapters of the thesis will discuss the currently used tracked chassis designs and their components. Subsequently, the conceptual design of the chassis will be developed, its properties and parameters will be calculated, and selected structural elements will be designed in detail.
Mini dumper for transporting bulk material
Sedláček, Tomáš ; Škopán, Miroslav (referee) ; Zeizinger, Lukáš (advisor)
The bachelor's thesis deals with the conceptual design of a minidumper. These machines are primarily used for transporting bulk material in small-scale earthworks. The introductory research describes selected similar devices. The research section serves as a basis for selecting a suitable conceptual solution. In the thesis, the solution of a tracked minidumper with a hydrostatic drive system and a hydraulic tipping of the dump body is selected. Part of the conceptual solution design is the design of the hydraulic circuit. Furthermore, the construction of the tracked chassis and other selected components is specified. The calculation section focuses on machine's drive system and the tipping of the dump body. This section covers the selection of the power unit, hydraulic pump, hydraulic motors and the linear hydraulic actuator. The end of the thesis is dedicated to the strength analysis of the machine's frame. The frame is subjected to strength analyses using the finite element method. Throughout the strength analyses, the frame is modified to enhance its load-bearing capacity. Drawing documentation for the final version of the frame is created. The thesis also includes drawing documentation of the minidumper assembly.
Conceptual design of a lifting platform for immobile people
Blažek, Jan ; Zeizinger, Lukáš (referee) ; Škopán, Miroslav (advisor)
This bachelor's thesis focuses on the issue of vertical lifting platforms for immobile persons. It describes the applicable legislative regulations for the construction, installation, and operation of these platforms, and analyzes current construction solutions and commercially available devices. The conclusion of the thesis presents an original conceptual design of a vertical lifting platform that meets all legislative and technical requirements.
Crane crab of bridge rack crane of load 30 t
Kolegar, Vojtěch ; Bartušek, Filip (referee) ; Škopán, Miroslav (advisor)
This diploma thesis deals with mechanical design of crane trolley of overhead bridge rack crane with maximum capacity of 30 000 kg used for manipulation with steel coils. Diploma thesis is divided to several chapters. The beginning is dedicated to brief survey and definition of overhead cranes. First main chapter deals with draft and functional calculation of fundamental parameters of hoist mechanism and continues by selection and verification of individual parts of hoist mechanism. Second main chapter deals with design and description of construction of upper rotational frame of crane trolley, guiding pillar, and handling mechanism. Description of design of all construction is followed by determination of several loads of each construction part including the load factors for the correct dimensioning of their construction. The last chapter is static strength analysis of mentioned parts of bridge rack crane. A description of the procedure for creating a computational model, scenarios of load conditions is made and the whole chapter ends with evaluation of the results of the static strength analysis. The output of thesis are calculation report of hoist mechanism and his components, technical drawings of hoist mechanism, weldment of handling mechanism and upper rotational frame with guiding pillar and handling mechanism.
Belt conveyor for glass shards
Vašut, Jan ; Škopán, Miroslav (referee) ; Zeizinger, Lukáš (advisor)
This work deals with an issue of a belt conveyor intended for the transport of glass shards over a short distance in a perpendicular direction. The goal of this work is to find a design solution for the belt conveyor for specific constructional parameters. In addition to the structural solution, this work also contains a research part that deals with the description of the belt conveyor, the basic structural element and their choice. In addition, this work includes the functional calculation of the belt conveyor according to the ISO ČSN 5048 regulation, the determination of basic sizes, the type of propulsion, the construction of tensioning device and the strength calculation for selected parts. Finally, the work is supplemented by drawing documentation.
Tractor single-axle semi-trailer
Jurenka, Radim ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor’s thesis deals with the conceptual and constructional design of a tractor single-axle semi-trailer, which is supported by the verification of component choice by functional, dimensional and force calculations with analytical structural analysis of selected structural sections. The design’s result is an agricultural semi-trailer, having specific characteristics and parameters, that has maximum gross weight of 5000 kg with single-side tipping flatbed, suitable for coupling into tractor hitch. The work includes partial drawing documentation of the proposed tractor semi-trailer.
Analysis of powertrain systems of forestry machines, taking into account the possibilities of hybridization
Šintaj, Andrej ; Škopán, Miroslav (referee) ; Mergl, Václav (advisor)
This bachelor’s thesis analyses the drive systems of forestry machines and their hybridization. The used electro-hybrid systems in forestry are discussed together with their basic components. Forestry machinery is divide into: skidders, harvesters, forwarders, forwarding trailers and cable yarders. In each subsection the conventional and electro-hybrid systems that are used or have been used are discussed in detail, together with schematic drawings. In comparison, reduction of consumed fuel and emission is pointed out, which can lead to a reduction not only of the price of harvested wood, but also to an improvement of the climate situation. Hybrid systems have many advantages, but they also have weaknesses wich are pointed out at the end of the work.
Transport semi-trailer of a building machine for a tractor
Ružica, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The thesis deals with the structural design of a semi-trailer for transporting construction machinery. The first four chapters contain both a classification of tractor trailers and a survey of similar trailers in this category, the construction machinery transported and the legislative regulations they must meet. The following chapter is a survey of the basic elements of a semi-trailer. The individual elements chosen are then described, based on the previous chapter, and the construction of the semi-trailer itself. The last part of the thesis deals with strength analytical calculations of selected structural nodes according to the specifications. The appendix of the thesis contains drawings of the semi-trailer assembly, weldments of the frame and shop production drawings of the selected parts.
Tractor semi-trailer 5t
Havel, Jaromír ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The task of this bachelor's thesis is the structural design of a tractor flatbed one axis trailer with a load capacity of 5 metric tons. The proposed semi-trailer is a flatbed type with three-way tipping. The introduction is devoted to legislative requirements for the operation and construction of trailers and semi-trailers including requirements for safety and accessories. Followed by a research of selected semi-trailers of a similar type available on the Czech mar-ket. The main part of thesis describes construction and design of semi-trailer and the design of accessories so that the semi-trailer meets all requirements. The semi-trailer frame is ana-lysed in detail at critical points. The necessary strength calculations of the limit states of the frame are carried out and suitability of the proposed materials and individual components is verified. The slope accessibility calculation is performed. The work is supplemented with basic calculations, tables and illustrative photographs. Attached are complete drawings of the weldment assembly, detailed drawings of the chassis frame and images of the trailer from the 3D model.
Transport semi-trailer 3t for a tractor
Vomela, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
The bachelor thesis deals with the design of a three-sided folding tractor trailer. The introductory part is devoted to the research of legislative regulations for the operation of the semi-trailer on roads, followed by the procedure for approval for operation on roads. Furthermore, a search of tractor-trailers of similar weight category available on the domestic market. The design part is devoted to the choice of a suitable technical solution, including functional, dimensional and force calculations of the proposed solutions. The appendix contains complete drawing documentation.

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