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Dynamisk övergång för kabeldragning
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
2024 (Swedish)Independent thesis Basic level (professional degree), 12 credits / 18 HE creditsStudent thesis
Abstract [en]

The work is based on a problem at the company NKT HV Cables AB, Karlskrona. NKT manufactures high-voltage cables which are pulled through complex cableways. The cables are stiff and difficult to bend, which results in them getting stuck in the cableways. In some parts of the factory, one cable will push another cable. This can also result in the cables getting stuck.During the work, a prototype has been constructed which will prevent the cables from getting stuck in the cableways. This prototype is a bendable ball joint which is attached to the cable end. The ball joint bends the cable end into the tracks, which results in the cable following along. This constructionwas developed through literature studies, concept generation, concept screening, calculations, and testing. FEM calculations were carried out and resulted in the ball joint being able to withstand the forces that occur when pulling forward. This was also verified by a test in an active production line. The result was that the ball joint bent the cable into the cableways and the functionality was confirmed. For optimal function, a rigid connection between the cables is needed in order not to get stuck when the cable pushes the other. The delimitation is important in future development as this problem can persist without a rigid connection.

Abstract [sv]

Arbetet grundas i ett problem på företaget NKT HV Cables AB, Karlskrona. NKT tillverkar högspänningskablar vilka dras genom komplexa kabelbanor. Kablarna är styva och svåra att böja vilket resulterar i att de fastnar i kabelbanorna. I vissa delar av fabriken kommer en kabel putta fram en annan kabel. Även detta kan resultera i att kablarna fastnar i kabelbanorna.Under arbetet har en prototyp konstruerats vilket skall förhindra att kablarna fastnar i kabelbanorna. Denna prototyp består av en böjbar kulled vilket fästs på kabeländen. Kulleden böjer in kabeländen i banorna vilket resulterar i att hela kabeln följer med. Denna konstruktion togs fram genom litteraturstudier, konceptgenerering, konceptsållning, beräkningar och testningar. FEM-beräkningar utfördes och resulterade i att kulleden tål krafterna vilkauppstår vid framdragning. Detta verifierades även genom att testa kulleden i ett framdrag på en aktiv linje i produktionen. Resultatet var att kulleden böjde in kabeln i kabelbanorna och funktionaliteten bekräftades. För optimal funktion krävs en stel koppling mellan kabel och kabel för att inte fastna när en kabel puttar en annan. Avgränsningen är viktig i framtida utveckling då detta problem kan kvarstå utan en stel koppling.

Place, publisher, year, edition, pages
2024. , p. 75
Keywords [en]
Cableway, Cable, Cable sock, Simulation, Modeling
Keywords [sv]
Kabelbana, Kabel, Dragstrumpa, Simulering, Modellering.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-26563OAI: oai:DiVA.org:bth-26563DiVA, id: diva2:1876631
External cooperation
NKT HV Cables AB
Subject / course
MT1475 Thesis
Educational program
MTGHM Bachelor of Science in Engineering: Mechanical Engineering
Supervisors
Examiners
Available from: 2024-06-27 Created: 2024-06-24 Last updated: 2025-09-30Bibliographically approved

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