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Våglänk med elektronik: Konstruktion samt verifiering av en våglänk med elektronik
Umeå University, Faculty of Science and Technology, Department of Applied Physics and Electronics.
2019 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Weighing link with electronics : Design and verification of a weighing link with electronics (English)
Abstract [sv]

Arbetet utfördes i Vindeln hos Indexator Rotator Systems AB som är ett världsledande företag inom rotatorer. Mellan kran och rotator monteras ofta en länk, en del av dessa länkar erbjuder en viktfunktion, dessa kallas våglänk. I detta examensarbete togs en alternativ våglänk fram. Arbetet är en fortsättning på tidigare arbeten utförda av Indexator. Våglänken som togs fram använder sig av en lastcell för att mäta belastningen som uppstår när virke och dylikt lastas.

Projektet kommer vara uppdelat i två delar. Den första delen handlar om att verifiera den elektriska lastcellens prestanda och funktion när den är monterad i våglänken. Här skapas en verifieringsplan och en del av verifieringen utförs även under arbetets gång. För att kontrollera lastcellens funktion så kopplas den upp mot en Arduino och en accelerometer. All programmering och tillhörande kod presenteras i rapporten. I den andra delen ritas våglänk 80–80 5t om för att acceptera den elektriska lastcellen. Innan våglänken ritas om skapas en jämförelse mellan tänkbara lastceller sett till prisbild, form samt funktion. Dessa presenteras med tillhörande offerter. Två lastceller valdes ut och två prototyper per lastcell ritades i Siemens NX. Ritningar tas fram till varje koncept för framtida prototyptillverkning.

Resultatet är en jämförelse av två olika lastceller, en verifieringsplan där en del av verifieringen är utförd och CAD-filer med tillhörande ritningar.

Abstract [en]

The work was carried out in Vindeln at Indexator Rotator Systems AB, which is a world-leading company in rotators. Between the crane and the rotator a link is often mounted, some of these links offer a weight function, and are called weighing links. In this thesis, an alternative weighing link was constructed. This work is a continuation of previous work done by Indexator themselves. The weighing link developed uses a load cell to measure the load that occurs when timber and such are lifted.

The project will be divided into two parts. The first part is about verifying the performance and function of the electric loadcell when mounted in the weighing link. Here, a verification plan is created and parts of the verification is also done during the work. To check the function of the load cell, it is connected to an Arduino and an accelerometer. All programming and associated code are presented in the report. In the second part, changes are made to the weighing link 80-80 5t to accept the electric load cell. Before drawing the weighing link, a comparison is made between possible load cells with regards to price, form and function. These are presented with related quotes. Two load cells were selected and two prototypes per load cell were drawn in NX. Drawings are developed for each concept for future prototype production.

The result is a comparison of two different load cells, a verification plan with some verification performed and cad files with associated drawings.

Place, publisher, year, edition, pages
2019. , p. 52
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:umu:diva-161965OAI: oai:DiVA.org:umu-161965DiVA, id: diva2:1341258
External cooperation
Indexator Rotator Systems AB
Subject / course
Maskinteknik
Educational program
Bachelor of Science Engineering in Mechanical Engineering
Supervisors
Examiners
Available from: 2019-08-08 Created: 2019-08-08 Last updated: 2021-08-08Bibliographically approved

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