带式输送机启动不打滑的动态特性研究与应用
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摘要
针对采用刚体动力学模型对带式输送机进行不打滑理论分析时,存在动张力和张紧力不能被准确计算导致理论分析与实际结果不符的问题,在建立带式输送机黏弹性动力学模型的基础上,对带式输送机进行启动不打滑的动态特性研究,通过设计合适的启动加速度和启动时间,精确计算出输送机启动过程中输送带的动张力,由此动张力计算出的输送机启动所需张紧力能有效限制输送机启动时的黏弹性振动,从而防止打滑事故的发生。山西某煤矿主斜井带式输送机现场启动试验结果及理论计算证明,带式输送机启动不打滑的动态特性研究设计计算结果可以解决带式输送机启动打滑的问题。
Aiming at using the rigid body dynamics model of belt conveyor to make start non- skid theoretical analysis would lead that the dynamic tension and tension force could not be accurately calculated,which would easily cause the problem that actual results was different from theoretical analysis. For the problem,this paper established the viscoelastic dynamics model to make the dynamic characteristics study of start non- skid for the belt conveyor. Not only could the internal dynamic tension be accurately calculated,but also could the internal dynamic tension which the belt had during the belt conveyor starts be reduced by designing an appropriate starting acceleration and appropriate starting time. Based on the above discussion,the calculated tension force which was required for the belt conveyor starting could effectively limit the viscoelastic vibration when starting so that it could effectively prevent the occurrence of start skid. The theoretical calculations and starting tests in Shanxi province confirmed that the results of the dynamic characteristics study of start non- skid for the belt conveyor could solve the problem of start skid for the belt conveyor.
Aiming at using the rigid body dynamics model of belt conveyor to make start non- skid theoretical analysis would lead that the dynamic tension and tension force could not be accurately calculated,which would easily cause the problem that actual results was different from theoretical analysis. For the problem,this paper established the viscoelastic dynamics model to make the dynamic characteristics study of start non- skid for the belt conveyor. Not only could the internal dynamic tension be accurately calculated,but also could the internal dynamic tension which the belt had during the belt conveyor starts be reduced by designing an appropriate starting acceleration and appropriate starting time. Based on the above discussion,the calculated tension force which was required for the belt conveyor starting could effectively limit the viscoelastic vibration when starting so that it could effectively prevent the occurrence of start skid. The theoretical calculations and starting tests in Shanxi province confirmed that the results of the dynamic characteristics study of start non- skid for the belt conveyor could solve the problem of start skid for the belt conveyor.
引文
[1]李玉瑾.带式输送机的动态特性分析与软启动设计[J].煤炭学报,2002,27(3):294-298.
[2]乔燕雄.带式输送机启、制动阶段的动态特性研究[D].北京:华北电力大学,2010:31-34.
[3]李军霞,李莉,寇子明.下运带式输送机软制动系统模拟试验[J].煤矿机电,2008,11(3):7-12.
[4]张媛,包继华,于岩,等.带式输送机动态分析连续模型[J].山东矿业学院学报,1999,18(1):35-39.
[5]张媛,周满山,于岩,等.带式输送机动态分析连续模型振动解法及计算机仿真[J].力学与实践,1999,21(1):42-46.
[6]王繁生,侯友夫.带式运输机动态分析模型研究[J].中国矿业,2008,17(11):58-60.
[7]布·勒·达维道夫.矿山机械动力学[M].北京矿业学院矿山机械研究组,译.北京:煤炭工业出版社,1957:20-36.
[8]唐大志.带式输送机动力学分析理论与仿真[J].黑龙江科技学院学报,2004,14(3):154-159.
[9]李玉瑾.多绳摩擦提升机系统动力学研究与工程设计[M].北京:煤炭工业出版社,2008:10-13.
[10]李军霞.带式输送机新型制动系统的研究[D].太原:太原理工大学,2009:24-25.
[11]弗·符·弗洛林斯基.矿井提升钢丝绳动力学[M].杨福新,译.北京:煤炭工业出版社,1957:31-36.
[12]四川矿业学院数学教研组.数学手册[K].北京:科学出版社,1978.
[13]宋伟刚,衣统帅,邓永生.一种大型带式输送机的可控启动曲线[J].煤矿机械,2002,11(6):8-10.
[14]郭永存.双滚筒分别驱动带式输送机不打滑条件的分析计算[J].机械设计,2004,21(1):49-50.
[15]编委会.最新带式输送机设计与技术资料及标准规范使用手册[K].北京:知识出版社,2010.
[2]乔燕雄.带式输送机启、制动阶段的动态特性研究[D].北京:华北电力大学,2010:31-34.
[3]李军霞,李莉,寇子明.下运带式输送机软制动系统模拟试验[J].煤矿机电,2008,11(3):7-12.
[4]张媛,包继华,于岩,等.带式输送机动态分析连续模型[J].山东矿业学院学报,1999,18(1):35-39.
[5]张媛,周满山,于岩,等.带式输送机动态分析连续模型振动解法及计算机仿真[J].力学与实践,1999,21(1):42-46.
[6]王繁生,侯友夫.带式运输机动态分析模型研究[J].中国矿业,2008,17(11):58-60.
[7]布·勒·达维道夫.矿山机械动力学[M].北京矿业学院矿山机械研究组,译.北京:煤炭工业出版社,1957:20-36.
[8]唐大志.带式输送机动力学分析理论与仿真[J].黑龙江科技学院学报,2004,14(3):154-159.
[9]李玉瑾.多绳摩擦提升机系统动力学研究与工程设计[M].北京:煤炭工业出版社,2008:10-13.
[10]李军霞.带式输送机新型制动系统的研究[D].太原:太原理工大学,2009:24-25.
[11]弗·符·弗洛林斯基.矿井提升钢丝绳动力学[M].杨福新,译.北京:煤炭工业出版社,1957:31-36.
[12]四川矿业学院数学教研组.数学手册[K].北京:科学出版社,1978.
[13]宋伟刚,衣统帅,邓永生.一种大型带式输送机的可控启动曲线[J].煤矿机械,2002,11(6):8-10.
[14]郭永存.双滚筒分别驱动带式输送机不打滑条件的分析计算[J].机械设计,2004,21(1):49-50.
[15]编委会.最新带式输送机设计与技术资料及标准规范使用手册[K].北京:知识出版社,2010.