稻秆与圆捆机钢辊间滑动摩擦特性试验

针对钢辊式圆捆机秸秆卷捆过程基础研究较少的情况,该文对稻秆与钢辊（由碳素钢冷轧板卷制而成）之间的滑动摩擦特性进行了研究.利用自制的钢辊滑动摩擦系数测试装置,采用L27（313）正交试验方案研究了稻秆含水率、正压应力、钢辊线速度及其之间的交互作用对稻秆与钢辊之间滑动摩擦系数的影响,并通过单因素试验分别获得稻秆含水率、正压应力和钢辊线速度对滑动摩擦系数的影响规律及回归方程.正交试验结果表明：稻秆与钢辊之间的滑动摩擦系数受稻秆含水率、正压应力影响显著,受钢辊线速度影响较显著,且影响因素主次顺序为：稻秆含水率＞正压应力＞钢辊线速度,而且稻秆含水率与正压应力之间的交互作用对稻秆与钢辊之间的滑动摩擦系数影...

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Bibliographic Details
Published in农业工程学报 Vol. 33; no. 21; pp. 44 - 51
Main Author 王德福 江志国 李百秋 王国富 蒋亦元
Format Journal Article
LanguageChinese
Published 农业部生猪养殖设施工程重点实验室,哈尔滨 150030%东北农业大学工程学院,哈尔滨,150030 2017
东北农业大学工程学院,哈尔滨 150030
Subjects
农业机械
力学特性
滑动摩擦系数
秸秆
钢辊
agricultural machinery
秸秆
滑动摩擦系数
steel-roll
钢辊
力学特性
straw
sliding friction coefficient
mechanical properties
农业机械
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2017.21.005

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Summary:针对钢辊式圆捆机秸秆卷捆过程基础研究较少的情况,该文对稻秆与钢辊（由碳素钢冷轧板卷制而成）之间的滑动摩擦特性进行了研究.利用自制的钢辊滑动摩擦系数测试装置,采用L27（313）正交试验方案研究了稻秆含水率、正压应力、钢辊线速度及其之间的交互作用对稻秆与钢辊之间滑动摩擦系数的影响,并通过单因素试验分别获得稻秆含水率、正压应力和钢辊线速度对滑动摩擦系数的影响规律及回归方程.正交试验结果表明：稻秆与钢辊之间的滑动摩擦系数受稻秆含水率、正压应力影响显著,受钢辊线速度影响较显著,且影响因素主次顺序为：稻秆含水率＞正压应力＞钢辊线速度,而且稻秆含水率与正压应力之间的交互作用对稻秆与钢辊之间的滑动摩擦系数影响显著;单因素试验结果表明：稻秆与钢辊之间的滑动摩擦系数随稻秆含水率的增加而增加,随正压应力的增加而减小,随钢辊线速度的增加而减小;在稻秆含水率为10%～70%、正压应力为1～9 kPa和钢辊线速度为0.2～0.8 m/s时,稻秆与钢辊之间的滑动摩擦系数的变化范围为0.353～0.612.研究结果可为钢辊式圆捆机的研究与设计提供理论依据.
Bibliography:Rice straw resource is abundant in China, and annual output of rice straw has been over 200 million t. In recent years, as a kind of renewable biomass resource, rice straw is being used widely in new areas. However, because of the scattered distribution, the loose structure and the large volume of rice straw resource, it is difficult for rice straw to be stored and transported, which has seriously restricted the large-scale utilization of rice straw resource. It is very important to use the round baler to harvest rice straw for the comprehensive utilization of rice straw. In view of the fact that the basic research of the steel-roll round baler is less in China, it is urgent to carry out the basic research on the sliding friction between rice straw and steel-roll. In order to provide the basis for the design of the steel-roll round baler, the experiments of the sliding friction characteristics between rice straw and steel-roll （prepared by the rolling of cold rolled plate of carbon steel） were performed in th
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2017.21.005