不同工况下采煤机行走特性分析
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摘要
为研究采煤机在不同工况下的行走特性,构建了行走机构动力学模型,建立了行走轮啮合接触动力学方程、行走轮运动方程以及基于切入深度的齿销碰撞接触力方程。建立了行走机构数字化样机模型,并通过动力学仿真软件构建了齿销啮合碰撞仿真模型,提取了行走轮在理想工况下的接触力变化曲线、3种不同工况下的运动状态曲线。
In order to study the walking characteristics of shearer under different working conditions,the dynamic model of walking mechanism was established. The dynamic equation of meshing contact and motion equation of walking wheel and the contact force equation of the teeth-pin impact based on depth of penetration were established. The digital model of walking mechanism was established, and the simulation model of teeth-pin meshing collision was built by dynamic simulation software. The contact force curves of walking wheel under ideal working conditions and the motion state curves under three different working conditions were extracted.
In order to study the walking characteristics of shearer under different working conditions,the dynamic model of walking mechanism was established. The dynamic equation of meshing contact and motion equation of walking wheel and the contact force equation of the teeth-pin impact based on depth of penetration were established. The digital model of walking mechanism was established, and the simulation model of teeth-pin meshing collision was built by dynamic simulation software. The contact force curves of walking wheel under ideal working conditions and the motion state curves under three different working conditions were extracted.
引文
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[2]申旭亮.采煤机牵引部销轨轮常见失效形式研[J].煤炭技术,2018,37(2):291-293.
[3]张景晖,甄凤博,刘金荣.采煤机行走轮齿形的分析与研究[J].煤矿机械,2016,37(2):104-105.
[4]马胜利,晋继伟,索蓓蓓,等.基于ABAQUS的齿轨轮特定工况下啮合分析[J].煤炭技术,2018,37(2):236-239.
[5]毛君,郭光领,谢苗.实际工况下采煤机导向滑靴受力及疲劳寿命研究[J].煤矿机械,2017,38(9):37-40.
[6]陈洪月,张坤,田松,等.斜切工况下采煤机销排导向滑靴模态与寿命分析[J].煤炭科学技术,2017,45(4):82-88.
[7]赵丽娟,马联伟.薄煤层采煤机可靠性分析与疲劳寿命预测[J].煤炭学报,2013,38(7):1 287-1 292.
[8]周笛,张旭方,杨周,等.采煤机牵引部传动系统动态可靠性分析[J].煤炭学报,2015,40(11):2 546-2 551.
[9]雷娜.齿轮齿条钻机传动机构力学特性研究[D].大庆:东北石油大学,2015.
[10]吕凯波,胡晓禾,常宗旭,等.冲击载荷作用下齿轮传动系统动力学仿真分析[J].机械传动,2016,40(9):128-131.
[11]付胜,吕孟宸.齿轮故障的仿真分析与研究[J].机械科学与技术,2016,35(9):1 370-1 374.