|
|
Chassis Electrical Systems
Slaběňák, Patrik ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
Travelling by bus is very extended in present and safety return home is a wish of every passenger. Outcome of this bachelor work is a survey of the most used stability systems, used in cars and facilitating the work of drivers in critic situations. Among others, this work contains the survey of powers acting on a vehicle during the ride. This powers influence impending slippery road on aggravated adhesive conditions. Individual systems are described attentively and supplemented by illustrating pictures, which near this issue and facilitate the real idea of functionality. At the conclusion of this work is mentioned the theoretical suggestion for practical exercising of a subject automobile electrotechnics and also a referring is mentioned to my continuation in this dissertation.
|
|
|
Production technology for hydraulic pump safety valve
Matějíčková, Eva ; Prokeš, Tomáš (referee) ; Zemčík, Oskar (advisor)
The aim of this Thesis is the design of a new technology for effective production of hydraulic pump safety valve and its technical and economical comparison with the current one. First part provides general information about hydraulic pumps and tooling of safety valves, which are part of the hydraulic circuits. In the practical part, design of new technological process for the production of safety valves in the NETPOL JET company is made. The design includes selection of suitable control and cutting tools with respect to available equipment of the company. Main part is devoted to the description of the technological process, making of operating instructions and calculation of machine times. In the end, technological and economical comparison of current and proposed procedures is made.
|
|
|
Backhoe for tractor
Jurák, Pavel ; Červinka, Jan (referee) ; Škopán, Miroslav (advisor)
The aim of this thesis is a design of an additional excavator with side shift for agricultural tractor with power from 50 to 70 kW. The excavator is controlled by a hydraulic circuit. The main element here is an independent pump with a 40l / min supply, which is driven by a gearbox using a cardan shaft. The hydraulic circuit has been designed so that the temperature of the hydraulic fluid does not exceed the allowable limit. An important role is played by the connection to the tractor where was used a modified three-point hitch. This coupling of the tractor with the frame of excavator ensures sufficient rigidity when performing excavation work. When calculating the excavation resistance, was considered the soil of the 4th class, this is hard-to-disconnect soil or clay. The calculation implies that the machine can be used with backhoe buckets up to 500 mm wide. Strength analysis of boom was performed in Ansys Workbench 2019. Safety coefficients were determined for individual components. The overall safety coefficient is equal to 1.7.
|
|
|
Radial piston pump
Kapoun, Lukáš ; Šperka, Oldřich (referee) ; Klas, Roman (advisor)
This bachelor thesis contains a basic division of hydraulic pumps. Different types of these hydraulic pumps are presented along with basic computational equations and characteristics. The main part of this thesis is devoted to the description of design of radial piston pump including modifications and kinematics of its operation. The size of pulsation flow, influence of hydraulic pump parameters on their size and continuity of working fluid supply are observed. The thesis is concluded with the evaluation of the issues concerned and supplemented with graphs.
|
|
|
Backhoe for tractor
Jurák, Pavel ; Červinka, Jan (referee) ; Škopán, Miroslav (advisor)
The aim of this thesis is a design of an additional excavator with side shift for agricultural tractor with power from 50 to 70 kW. The excavator is controlled by a hydraulic circuit. The main element here is an independent pump with a 40l / min supply, which is driven by a gearbox using a cardan shaft. The hydraulic circuit has been designed so that the temperature of the hydraulic fluid does not exceed the allowable limit. An important role is played by the connection to the tractor where was used a modified three-point hitch. This coupling of the tractor with the frame of excavator ensures sufficient rigidity when performing excavation work. When calculating the excavation resistance, was considered the soil of the 4th class, this is hard-to-disconnect soil or clay. The calculation implies that the machine can be used with backhoe buckets up to 500 mm wide. Strength analysis of boom was performed in Ansys Workbench 2019. Safety coefficients were determined for individual components. The overall safety coefficient is equal to 1.7.
|
|
|
Production technology for hydraulic pump safety valve
Matějíčková, Eva ; Prokeš, Tomáš (referee) ; Zemčík, Oskar (advisor)
The aim of this Thesis is the design of a new technology for effective production of hydraulic pump safety valve and its technical and economical comparison with the current one. First part provides general information about hydraulic pumps and tooling of safety valves, which are part of the hydraulic circuits. In the practical part, design of new technological process for the production of safety valves in the NETPOL JET company is made. The design includes selection of suitable control and cutting tools with respect to available equipment of the company. Main part is devoted to the description of the technological process, making of operating instructions and calculation of machine times. In the end, technological and economical comparison of current and proposed procedures is made.
|
|
|
Chassis Electrical Systems
Slaběňák, Patrik ; Kuchyňková, Hana (referee) ; Hájek, Vítězslav (advisor)
Travelling by bus is very extended in present and safety return home is a wish of every passenger. Outcome of this bachelor work is a survey of the most used stability systems, used in cars and facilitating the work of drivers in critic situations. Among others, this work contains the survey of powers acting on a vehicle during the ride. This powers influence impending slippery road on aggravated adhesive conditions. Individual systems are described attentively and supplemented by illustrating pictures, which near this issue and facilitate the real idea of functionality. At the conclusion of this work is mentioned the theoretical suggestion for practical exercising of a subject automobile electrotechnics and also a referring is mentioned to my continuation in this dissertation.
|
|
|
Radial piston pump
Kapoun, Lukáš ; Šperka, Oldřich (referee) ; Klas, Roman (advisor)
This bachelor thesis contains a basic division of hydraulic pumps. Different types of these hydraulic pumps are presented along with basic computational equations and characteristics. The main part of this thesis is devoted to the description of design of radial piston pump including modifications and kinematics of its operation. The size of pulsation flow, influence of hydraulic pump parameters on their size and continuity of working fluid supply are observed. The thesis is concluded with the evaluation of the issues concerned and supplemented with graphs.
|
guest ::
