ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS
According to shearer vibration problems in the practical work,using multi-body dynamics theory,considering the connection characteristics between walking unit of shearer and scraper conveyor,the support characteristics of adjustment height oil vat,the stiffness of rocker arm of shearer,the connectio...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.01.004 |
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| author | MAO Jun YANG XinWei CHEN HongYue SONG QiuShuang |
| author_facet | MAO Jun YANG XinWei CHEN HongYue SONG QiuShuang |
| author_sort | MAO Jun |
| collection | DOAJ |
| description | According to shearer vibration problems in the practical work,using multi-body dynamics theory,considering the connection characteristics between walking unit of shearer and scraper conveyor,the support characteristics of adjustment height oil vat,the stiffness of rocker arm of shearer,the connection characteristics between the parts of shearer,vibration angle of shearer,6 degrees of freedom dynamic model in the vertical direction of shearer was established.The vertical direction of shearer drum load was used as an external excitation,and the effect of different coal and rock hardness on vertical direction vibration characteristics of shearer were solved by using numerical analysis method. The results show that the mean of coal cutting impedance has great influence on vibration displacement of front and rear cutting unit when the range is 200 kN/m ～ 400 kN/m,the displacement range of front and rear drum is 13. 42 mm ～ 26. 83 mm、8. 19 mm ～ 16. 37 mm,and the displacement range of front and rear rocker arm is 5. 31 mm ～ 10. 62 mm、3. 32 mm ～ 6. 65 mm.Finally,the results of model is verified by experiment. |
| format | Article |
| id | doaj-art-b7807fad7a1e4479a1bd4ea055afd22a |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-b7807fad7a1e4479a1bd4ea055afd22a2025-01-15T02:30:32ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-0141202530603698ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESSMAO JunYANG XinWeiCHEN HongYueSONG QiuShuangAccording to shearer vibration problems in the practical work,using multi-body dynamics theory,considering the connection characteristics between walking unit of shearer and scraper conveyor,the support characteristics of adjustment height oil vat,the stiffness of rocker arm of shearer,the connection characteristics between the parts of shearer,vibration angle of shearer,6 degrees of freedom dynamic model in the vertical direction of shearer was established.The vertical direction of shearer drum load was used as an external excitation,and the effect of different coal and rock hardness on vertical direction vibration characteristics of shearer were solved by using numerical analysis method. The results show that the mean of coal cutting impedance has great influence on vibration displacement of front and rear cutting unit when the range is 200 kN/m ～ 400 kN/m,the displacement range of front and rear drum is 13. 42 mm ～ 26. 83 mm、8. 19 mm ～ 16. 37 mm,and the displacement range of front and rear rocker arm is 5. 31 mm ～ 10. 62 mm、3. 32 mm ～ 6. 65 mm.Finally,the results of model is verified by experiment.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.01.004ShearerCoal and rock hardnessVibrationNumerical analysisExperimental study |
| spellingShingle | MAO Jun YANG XinWei CHEN HongYue SONG QiuShuang ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS Jixie qiangdu Shearer Coal and rock hardness Vibration Numerical analysis Experimental study |
| title | ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS |
| title_full | ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS |
| title_fullStr | ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS |
| title_full_unstemmed | ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS |
| title_short | ANALYSIS OF SHEARER VERTICAL DIRECTION VIBRATION CHARACTERISTICSUNDER DIFFERENT COAL AND ROCK HARDNESS |
| title_sort | analysis of shearer vertical direction vibration characteristicsunder different coal and rock hardness |
| topic | Shearer Coal and rock hardness Vibration Numerical analysis Experimental study |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.01.004 |
| work_keys_str_mv | AT maojun analysisofshearerverticaldirectionvibrationcharacteristicsunderdifferentcoalandrockhardness AT yangxinwei analysisofshearerverticaldirectionvibrationcharacteristicsunderdifferentcoalandrockhardness AT chenhongyue analysisofshearerverticaldirectionvibrationcharacteristicsunderdifferentcoalandrockhardness AT songqiushuang analysisofshearerverticaldirectionvibrationcharacteristicsunderdifferentcoalandrockhardness |