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Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine
High-efficiency rock breaking technology is an important problem to be solved urgently in deep mining. The existing auxiliary rock breaking technology for coal mine excavation has problems such as polluting coal, high requirements for tool materials, and difficulty in subsequent washing. In this pap...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10556023/ https://www.ncbi.nlm.nih.gov/pubmed/37798447 http://dx.doi.org/10.1038/s41598-023-44044-3 |
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author | Xie, Miao Li, Yuqi Nie, Rendong Liu, Zhixiang Mao, Jun Zhang, Hongyu Yu, Xinli |
author_facet | Xie, Miao Li, Yuqi Nie, Rendong Liu, Zhixiang Mao, Jun Zhang, Hongyu Yu, Xinli |
author_sort | Xie, Miao |
collection | PubMed |
description | High-efficiency rock breaking technology is an important problem to be solved urgently in deep mining. The existing auxiliary rock breaking technology for coal mine excavation has problems such as polluting coal, high requirements for tool materials, and difficulty in subsequent washing. In this paper, an active excitation cutting system for rotary cylinder of cantilever roadheader based on alternating valve is proposed. According to the classical calculation formula of cutting load of roadheader, considering the stiffness-damping characteristics of cutting part and cutting cylinder, the simulation algorithm of cutting load is compiled based on MATLAB simulation analysis software. The excitation cutting experiments of different cutting depths are carried out on the cutting test bench, and compared with the simulation algorithm of cutting load. Taking the cutting load as the discriminant index, the influence of oil supply pressure and excitation frequency of rotary cylinder on the cutting load is analyzed based on the simulation algorithm of cutting load. The results show that the error between the simulation results and the experimental results of the active excitation state is less than 12%, and the two are in good agreement. Under the condition of 30 HZ, when the excitation amplitude is 8 Mpa, 10 Mpa, 12 Mpa, 14 Mpa, when the rotary cylinder excitation amplitude is 10 Mpa, the minimum is 131.42 KN. Compared with the rotary cylinder excitation amplitude under the condition of 10 Mpa, when the excitation frequency is 30 HZ, 35 HZ, 40 HZ, 45 HZ, when the excitation frequency is 40 HZ, the minimum is 83.08 KN, indicating that changing the excitation amplitude or oil supply pressure of the rotary cylinder is helpful to adjust the cutting performance. |
format | Online Article Text |
id | pubmed-10556023 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105560232023-10-07 Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine Xie, Miao Li, Yuqi Nie, Rendong Liu, Zhixiang Mao, Jun Zhang, Hongyu Yu, Xinli Sci Rep Article High-efficiency rock breaking technology is an important problem to be solved urgently in deep mining. The existing auxiliary rock breaking technology for coal mine excavation has problems such as polluting coal, high requirements for tool materials, and difficulty in subsequent washing. In this paper, an active excitation cutting system for rotary cylinder of cantilever roadheader based on alternating valve is proposed. According to the classical calculation formula of cutting load of roadheader, considering the stiffness-damping characteristics of cutting part and cutting cylinder, the simulation algorithm of cutting load is compiled based on MATLAB simulation analysis software. The excitation cutting experiments of different cutting depths are carried out on the cutting test bench, and compared with the simulation algorithm of cutting load. Taking the cutting load as the discriminant index, the influence of oil supply pressure and excitation frequency of rotary cylinder on the cutting load is analyzed based on the simulation algorithm of cutting load. The results show that the error between the simulation results and the experimental results of the active excitation state is less than 12%, and the two are in good agreement. Under the condition of 30 HZ, when the excitation amplitude is 8 Mpa, 10 Mpa, 12 Mpa, 14 Mpa, when the rotary cylinder excitation amplitude is 10 Mpa, the minimum is 131.42 KN. Compared with the rotary cylinder excitation amplitude under the condition of 10 Mpa, when the excitation frequency is 30 HZ, 35 HZ, 40 HZ, 45 HZ, when the excitation frequency is 40 HZ, the minimum is 83.08 KN, indicating that changing the excitation amplitude or oil supply pressure of the rotary cylinder is helpful to adjust the cutting performance. Nature Publishing Group UK 2023-10-05 /pmc/articles/PMC10556023/ /pubmed/37798447 http://dx.doi.org/10.1038/s41598-023-44044-3 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Xie, Miao Li, Yuqi Nie, Rendong Liu, Zhixiang Mao, Jun Zhang, Hongyu Yu, Xinli Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title | Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title_full | Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title_fullStr | Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title_full_unstemmed | Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title_short | Research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
title_sort | research on the performance of the active vibration cutting system for the rotary cylinder of a tunneling machine |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10556023/ https://www.ncbi.nlm.nih.gov/pubmed/37798447 http://dx.doi.org/10.1038/s41598-023-44044-3 |
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