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Produktionseffektivisering av asfaltsvältar
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2017 (Swedish)Independent thesis Basic level (university diploma), 12 credits / 18 HE creditsStudent thesis
Abstract [sv]

Projektets syfte var att effektivisera en flaskhalsstation på Dynapacs monteringslina av vältar. Dynapac tillverkar vältar för olika typer av underlag. En vält är en maskin bestående av en eller två valsar som vibrerar och packa underlaget som den kör på, exempelvis asfalt.

Arbetets resultat innebär produktionseffektivisering av produktionsflödet hos Dynapac. Dynapac upplever att stationen där sammankoppling av valsarna till välten sker är en flaskhals för flödet. Anledningen till detta beror på att sammankopplingen sker vid sidan av linjen på ett specifikt monteringsbord, vilket resulterar i att många onödiga lyft krävs. För att minimera tiden så mycket som möjligt så är en ny monteringsmetod vid sammankopplingen nödvändig. Olika koncept tas fram och sedan poängsätts varje koncept där det koncept med högst poäng väljs och vidareutvecklas för att anpassas mot bland annat riskanalysen.

Vid framtagning av de olika koncepten tas det hänsyn till den kravspecifikation som vi tillsammans med Dynapac tagit fram. Dynapac värnar om sina anställdas hälsa vilket medför att det ligger stort fokus kring säkerhet och ergonomi vid framtagning av den nya monteringsmetoden.

Rapporten omfattar även en kort beskrivning av Scania i Oskarshamn och deras montering av lastbilshytter. Hos Scania sker montering på ett liknande sätt som hos Dynapac.

Hållfasthetsberäkningar och ritningar för det valda konceptet tas fram. Ritningarna till det valda konceptet hittas bland bilagorna.

Abstract [en]

The purpose of the project was to streamline a bottleneck station on Dynapac's mounting line of rollers. Dynapac manufactures rollers for different types of groundwork.

A roller is a machine consisting of one or two rollers that vibrates and pack the groundwork on which it drives, for example asphalt.The result of the work involves production efficiency of Dynapac's production flow.

Dynapac finds that the station where you interconnect the rollers to each other is a bottleneck for the flow. The reason for this is because the interconnection occurs next to the line on a specific mounting table, resulting in many unnecessary lifts is needed. In order to minimize time as much as possible, a new method of interconnection is required. Different concepts are developed and then each concept is scored where the concept with highest points is chosen for further development.

When developing the different concepts, consideration is given to the requirement specification that we have developed together with Dynapac. Dynapac protects the health of the employees, which means that there is a lot of focus on safety and ergonomics when developing the new assembly method.

The report also includes a brief description of Scania in Oskarshamn and their assembly of truck cabins. This is a company where assembly takes place in a similar way to Dynapac and a comparison of the companies is made.Strength calculations and drawings for the chosen concept are made and the drawings are included in the annexes.

Place, publisher, year, edition, pages
2017. , 78 p.
Keyword [en]
Dynapac, Production Enhancement, Bottle Neck, Concept Development
Keyword [sv]
Dynapac, Produktionseffektivisering, Flaskhals, Konceptutveckling
National Category
Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:bth-14764OAI: oai:DiVA.org:bth-14764DiVA: diva2:1117384
External cooperation
Dynapac
Subject / course
MT1475 Thesis
Educational program
MTGMI Bachelor of Science in Mechanical Engineering
Supervisors
Examiners
Available from: 2017-06-30 Created: 2017-06-28 Last updated: 2017-06-30Bibliographically approved

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  • apa
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