Razvoj uređaja za obradu hmelja na pogon traktorom

master's thesis

• Title (english): Development of tractor-powered hop processing device
• Author: Nikola Topalović
• Mentor: Neven Pavković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2021-04-01, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Ručna berba kulture hmelja izuzetno je zahtjevna te se danas gotovo i ne primjenjuje.
Nedostatak financijski prihvatljive mehanizacije koja bi garantirano olakšala berbu u
proizvodnji, valjani je razlog radi kojeg mali proizvođači hmelja teže konkuriraju na tržištu.
Uzevši spomenuto u obzir, zadatak ovog diplomskog rada bio je razvoj uređaja za obradu
hmelja na pogon traktorom. Detaljnom analizom tržišta i konkurentskih proizvoda, osim
tehničkih rješenja i specifikacija postojećih uređaja, uvidio se slobodan prostor gdje bi ovakav
projekt mogao biti plasiran. Nakon analize tržišta izrađena je funkcijska dekompozicija te
morfološka matrica, standardne metode koje se koriste prilikom razvijanja uređaja raznih
namjena. Prije izrade ponuđenih konceptualnih rješenja i njihove evaluacije bilo je nužno
definirati zahtjeve prepoznate prethodno spomenutim analizama. Evaluacijom koncepata
odabran je najpogodniji za daljnji razvoj. Izrađen je računalni 3D CAD model uređaja s
pripadajućom dokumentacijom. Prilikom konstruiranja korišteni su standardni dijelovi poput
hidrauličkih motora, ležajeva, lančanika i ostalih elemenata te su odabrani s obzirom na
izračunata opterećenja i definirane zahtjeve.

Konstrukcija zadovoljava uvjete čvrstoće, a zavari, lančani prijenosi, vratila, konvejeri i ostala
kritična mjesta su propisno kontrolirana prema važećim standardima.

Abstract (english)

Manual harvesting of hop culture is extremely demanding and is hardly used today. The lack
of financially acceptable mechanization that would be guaranteed to facilitate harvesting in
production is a valid reason why small hop producers find it harder to compete in the market.
Taking this into account, the task of this thesis was to develop a device for processing hops
powered by a tractor. A detailed analysis of the market and competing products, except
technical solutions and specifications of existing devices, revealed a free space where such a
project could be placed. After the market analysis, a functional decomposition and a
morphological matrix were made, standard methods used in the development of devices for
various purposes. Before developing the offered conceptual solutions and their evaluation, it
was necessary to define the requirements identified by the previously mentioned analyzes. By
evaluating the concepts, the most suitable for further development was selected. A computer
3D CAD model of the device with accompanying documentation was created. During the
design, standard parts such as hydraulic motors, bearings, sprockets and other elements were
used and were selected according to the calculated loads and defined requirements.

The construction meets the requirements of strength, and welds, chain transmissions, shafts,
conveyors and other critical points are properly controlled according to applicable standards.

• Keywords: hmelj; berba hmelja; nedostatak mehanizacije na tržištu; manji proizvođači hmelja; uređaj na pogon traktorom
• Keywords (english): hop; hop harvest; lack of mechanization on the market; smaller hop producers; tractor-powered device
• Language: croatian
• URN:NBN: urn:nbn:hr:235:446692
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-03-28 18:51:32