Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox
The output gear shaft of the main gearbox for polypropylene granulator main gearbox breaks during operation.Fracture reasons of the output gear shaft are investigated through fracture analysis, physical and chemical inspection, and strength check. The results show that the output gear shaft has earl...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2023-09-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.09.021 |
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| _version_ | 1841546971426324480 |
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| author | Guo Penghui Liu Shijun Xu Wenbo Lou Shiyu Dou Xiaopeng Yu Wentao |
| author_facet | Guo Penghui Liu Shijun Xu Wenbo Lou Shiyu Dou Xiaopeng Yu Wentao |
| author_sort | Guo Penghui |
| collection | DOAJ |
| description | The output gear shaft of the main gearbox for polypropylene granulator main gearbox breaks during operation.Fracture reasons of the output gear shaft are investigated through fracture analysis, physical and chemical inspection, and strength check. The results show that the output gear shaft has early fretting tear, due to instantaneous impact caused by fracture of the corresponding screw shaft. Under the compound alternating load of the torque and the bending moment, the early crack initiates and propagates along the journal. When the effective bearing area of the output gear shaft reduces to the critical point that it cannot withstand the torsional torque generated by normal operation, the fracture of the output gear shaft occurs. It is easy to form stress concentration at the cutter back groove of the output gear shaft journal, which is also one of the cracking inducement. |
| format | Article |
| id | doaj-art-1479196997104d449454bf16538ebac9 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2023-09-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-1479196997104d449454bf16538ebac92025-01-10T14:59:00ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-09-014715115941952523Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main GearboxGuo PenghuiLiu ShijunXu WenboLou ShiyuDou XiaopengYu WentaoThe output gear shaft of the main gearbox for polypropylene granulator main gearbox breaks during operation.Fracture reasons of the output gear shaft are investigated through fracture analysis, physical and chemical inspection, and strength check. The results show that the output gear shaft has early fretting tear, due to instantaneous impact caused by fracture of the corresponding screw shaft. Under the compound alternating load of the torque and the bending moment, the early crack initiates and propagates along the journal. When the effective bearing area of the output gear shaft reduces to the critical point that it cannot withstand the torsional torque generated by normal operation, the fracture of the output gear shaft occurs. It is easy to form stress concentration at the cutter back groove of the output gear shaft journal, which is also one of the cracking inducement.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.09.021Gear shaftFracture failureInstantaneous impactFretting tearStress concentration |
| spellingShingle | Guo Penghui Liu Shijun Xu Wenbo Lou Shiyu Dou Xiaopeng Yu Wentao Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox Jixie chuandong Gear shaft Fracture failure Instantaneous impact Fretting tear Stress concentration |
| title | Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox |
| title_full | Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox |
| title_fullStr | Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox |
| title_full_unstemmed | Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox |
| title_short | Fracture Failure Analysis of the Output Gear Shaft for a Granulator Main Gearbox |
| title_sort | fracture failure analysis of the output gear shaft for a granulator main gearbox |
| topic | Gear shaft Fracture failure Instantaneous impact Fretting tear Stress concentration |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.09.021 |
| work_keys_str_mv | AT guopenghui fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox AT liushijun fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox AT xuwenbo fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox AT loushiyu fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox AT douxiaopeng fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox AT yuwentao fracturefailureanalysisoftheoutputgearshaftforagranulatormaingearbox |