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Chassis of tractors
Krátký, Martin ; Vopařil, Jan (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis deals with the currently used chassis of wheeled and tracked tractors. In the first part is an overview and a short description of individual components. The second and third parts are focused on steering of wheeled and tracked tractors. There are in detail described different types of steering and is given a principle of operation. Most of space is devoted to hydrostatic steering which is the most widespread. In the end is summarized a present situation in designing of tractor chassis. There are mentioned used solutions and are described new modern systems and is estimated a supposed trend of development.
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The engine unit of a loader
Vaněk, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This paper deals with a design of wheel loader’s engine unit and its performance, as well as the choice of suitable unit itself. Theoretical part describes a standard approach used in designing loaders in the performance and weight class according to the parameters listed and also introduces common designs of loader’s individual parts. It gives the reader an overview of various machines currently available on today’s market and their comparison. The second part of the thesis consists of performance design and calculations based on the comparison of performances needed for various working modes of the machine, where the performance are calculated as a sum of partial performances of differents parts of machines. The result of this paper is a choice of motorized unit that suits all the designed and calculated parameters.
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Design of excavator
Brza, Lukáš ; Zdařil, Zdeněk (referee) ; Křenek, Ladislav (advisor)
The design of the excavator follows requirements of machines for demolition work. The excavator is equipped with an innovative type of under carriage, which not only increases mobility over the demolition sites but also the visibility from the driver’s cabin. The components of the excavator, that improve the demolition work, are special types of tracks, suspensions and articulated steering. Tracks can change their shape to increase the stability and also to adapt to the diff erent types of ground. The suspensions with tracks are able to adapt to the terrain thereby they lighten the asperity. Suspension can also tilt or even raise the excavator and thereby increase the angle of visibility from the cabin. This function is necessary mainly when taking down higher constructions. Articulated steering is a new function that has never been used for excavators. This steering was chosen due to fl exible movement over demolition sites. The main aim of the project is to create a new design of the excavator, but more importantly to distinguish the excavator from the excavators already on the market, with regards to its esthetics and under carriage innovation.
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Design of excavator
Brza, Lukáš ; Zdařil, Zdeněk (referee) ; Křenek, Ladislav (advisor)
The design of the excavator follows requirements of machines for demolition work. The excavator is equipped with an innovative type of under carriage, which not only increases mobility over the demolition sites but also the visibility from the driver’s cabin. The components of the excavator, that improve the demolition work, are special types of tracks, suspensions and articulated steering. Tracks can change their shape to increase the stability and also to adapt to the diff erent types of ground. The suspensions with tracks are able to adapt to the terrain thereby they lighten the asperity. Suspension can also tilt or even raise the excavator and thereby increase the angle of visibility from the cabin. This function is necessary mainly when taking down higher constructions. Articulated steering is a new function that has never been used for excavators. This steering was chosen due to fl exible movement over demolition sites. The main aim of the project is to create a new design of the excavator, but more importantly to distinguish the excavator from the excavators already on the market, with regards to its esthetics and under carriage innovation.
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The engine unit of a loader
Vaněk, David ; Škopán, Miroslav (referee) ; Kašpárek, Jaroslav (advisor)
This paper deals with a design of wheel loader’s engine unit and its performance, as well as the choice of suitable unit itself. Theoretical part describes a standard approach used in designing loaders in the performance and weight class according to the parameters listed and also introduces common designs of loader’s individual parts. It gives the reader an overview of various machines currently available on today’s market and their comparison. The second part of the thesis consists of performance design and calculations based on the comparison of performances needed for various working modes of the machine, where the performance are calculated as a sum of partial performances of differents parts of machines. The result of this paper is a choice of motorized unit that suits all the designed and calculated parameters.
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Chassis of tractors
Krátký, Martin ; Vopařil, Jan (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis deals with the currently used chassis of wheeled and tracked tractors. In the first part is an overview and a short description of individual components. The second and third parts are focused on steering of wheeled and tracked tractors. There are in detail described different types of steering and is given a principle of operation. Most of space is devoted to hydrostatic steering which is the most widespread. In the end is summarized a present situation in designing of tractor chassis. There are mentioned used solutions and are described new modern systems and is estimated a supposed trend of development.
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