| 气吸式割前摘脱联收机吸运风机降噪试验研究 |
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| 引用本文： | 王立军,王业成,何国福.气吸式割前摘脱联收机吸运风机降噪试验研究[J].东北农业大学学报,2009,40(6). |
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| 作者姓名： | 王立军 王业成 何国福 |
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| 作者单位： | 东北农业大学工程学院,哈尔滨,150030 |
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| 基金项目： | 黑龙江省教育厅科学技术研究项目 |
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| 摘 要： | 由于气吸式4ZTL-1800割前摘脱稻(麦)联合收获机的风机动力消耗和噪音较大,试验通过对其风机1/2相似模型的噪声研究,确定其噪声主要来自排气口的排气声。为了消除排气口的空气动力性噪声,在排气管口增加了不同结构型式的消声器。结果表明,长方形消声器可衰减声能并降低噪声,确定了低噪声消声器结构。此结果可供4ZTL-1800割前摘脱稻(麦)联合收获机中吸运风机作设计参考。
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| 关 键 词： | 气吸式 联合收获机 风机 噪声 |
Experimental study on decreased fan noise in stripper combine harvester with air suction |
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| WANG Lijun,WANG Yecheng,HE Guofu.Experimental study on decreased fan noise in stripper combine harvester with air suction[J].Journal of Northeast Agricultural University,2009,40(6). |
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| Authors: | WANG Lijun WANG Yecheng HE Guofu |
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| Institution: | Engineering College;Northeast Agricultural University;Harbin 150030;China |
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| Abstract: | Now the reduction of the noise and airflow pressure drop in the fan of 4ZTL -1800 combine harvester threshing prior to cutting is a constant target. Through the study of 1/2 similar fan noise, the noise source of fan was found, which was made by airflow moving at the exit. In order to decrease fan noise, the different structural muffler fixed at the exit of fan were tested about fan noise. The results showed that rectangle muffler was the best to decrease fan noise, with the increase of which length, and th... |
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| Keywords: | air suction combine harvester fan noise experimental study |
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