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Recycling of electrical motors by automatic disassembly
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
2000 (English)In: Measurement science and technology, ISSN 0957-0233, E-ISSN 1361-6501, Vol. 11, no 4, 350-357 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a robotized workstation for end-of-life treatment of electrical motors with an electrical effect of about 1 kW. These motors can. for example, be found in washing machines and in industry. There are two main steps in the work. The first step is an inspection whereby the functionality of the motor is checked and classification either for re-use or for disassembly is done. In the second step the motors classified for disassembly are disassembled in a robotized automatic station. In the initial step measurements art, performed during a start-up sequence of about 1 s. By measuring the rotation speed and the current and voltage of the three phases of the motor classification for either reuse or disassembly can be done. During the disassembly work, vision data are fused in order to classify the motors according to their type. The vision system also feeds the control system of the robot with various object co-ordinates, to facilitate correct operation of the robot. Finally, tests with a vision system and eddy-current equipment are performed to decide whether all copper has been removed from the stator.

Place, publisher, year, edition, pages
2000. Vol. 11, no 4, 350-357 p.
Keyword [en]
eddy currents, vision, eddy-current measurement, current probes, voltage divider, classification system, industrial recycling, robotics
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-49769OAI: oai:DiVA.org:liu-49769DiVA: diva2:270665
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Järrhed, Jan-Ove

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  • nn-NB
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