Failure Analysis of a Gearbox of a Conveyor Belt
| Autor: | Kaushal Kishore, Ankush Sharma, Goutam Mukhopadhyay |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
020209 energy Mechanical Engineering Metallurgy Wear debris Sinter Plant Conveyor belt 02 engineering and technology 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials 0202 electrical engineering electronic engineering information engineering Lubrication General Materials Science Lubricant Safety Risk Reliability and Quality |
| Zdroj: | Journal of Failure Analysis and Prevention. 20:1237-1243 |
| ISSN: | 1864-1245 1547-7029 |
| DOI: | 10.1007/s11668-020-00928-4 |
| Popis: | Gearbox of a conveyor belt at a sinter plant failed prematurely during service. It led to an interruption in the supply of raw materials for sinter making and therefore affected the productivity. Detailed analysis of the failure of the gearbox was carried out. Observation reveals material chip off from teeth portion with multiple beach marks and striations confirming fatigue mode of failure. However, no gross metallurgical abnormality was observed as the material was supplied in quenched and tempered condition with a suitable case depth in teeth without any discernible nonmetallic inclusions. This directed the investigation toward maintenance-related issues, and it came out that the viscosity of the lubricant in use was significantly lower. Also, investigation of earlier ferrography suggested that the lubricant contained dark metal oxides and wear debris which may lead to inefficient lubrication. Therefore, it was concluded that gear failed in fatigue mode due to lubrication related issues. |
| Databáze: | OpenAIRE |
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