为了分析实际轧制过程中的振动和调节误差，研究了H型钢万能轧机轧辊调整装置基于理想约束副条件下的运动学与基于接触约束副的运动学动力学分析。从两者仿真结果的对比分析来看，理想约束条件下的水平辊调整速度是静态且恒定的0.6914 mm/s；基于接触约束模型条件下的水平辊调整速度是动态的并呈现伴随冲击的周期性波动，大致是在0.6887 mm/s处有比较大幅度的波动，且波动值相对理论值达36.64%，更加符合实际轧制工况。因此，基于静态设计的轧机在实际轧制过程中会出现比较明显的振动和调节误差，从而影响H型钢产品的尺寸精度和表面粗糙度，采用的变位系数蜗轮蜗杆传动是引起传动角速度波动的主要来源，这可为万能轧机的设计提供参考和依据。
The roll adjusting device of H-beam universal mill was studied based on the kinematics of ideal constraints vice and the dynamics of collision constraint. Compared the analysis among the simulation results, under the ideal con-straints conditions, the horizontal roller's adjustment speed was static and constant at 0.691 4 mm/s;but under the condi-tion of collision model, the horizontal roller,s adjustment speed was dynamic, and at 0.688 7 mm/s up and down relatively substantial cyclical fluctuations. The fluctuation relative to the theoretical value was 36.64%and that more in line with the actual rolling conditions. Therefore, it caused more obvious vibration and adjustment error in actual rolling process, affecting the H-beam's dimensional accuracy and surface roughness. The most important source of the angular velocity fluctuations was the use of modified coefficients for worm. The conclusions have some reference value to design the universal mill.
参考文献
| [1] | 刘英瑞,吴秀娟,管山吉.工艺及装备先进的H型钢生产线[J].钢铁,2001(01):29-32. |
| [2] | 李江波.高效生产热轧H型钢的新工艺[J].中国冶金,2013(01):42-44. |
| [3] | 翁宇庆,康永林.中国轧钢近年来的技术进步[J].钢铁,2010(09):1-13,27. |
| [4] | 王国栋,吴迪,刘振宇,王昭东.中国轧钢技术的发展现状和展望[J].中国冶金,2009(12):1-14. |
| [5] | 吴迪,赵宪明,何纯玉.型材高精度轧制工艺研究与生产实践[J].钢铁,2004(02):28-31. |
| [6] | 顾萍萍,黄筱调,于春建.基于ADAMS的数控转台蜗轮副传动精度的研究[J].机械设计与制造,2012(05):174-176. |
| [7] | 卢剑伟,陈昊,孙晓明,徐燚.考虑减速机构间隙的机械臂动力学建模分析[J].机械工程学报,2013(15):15-21. |
| [8] | 李金玉,勾志践,李媛.基于ADAMS的齿轮啮合过程中齿轮力的动态仿真[J].机械,2005(03):15-17. |
| [9] | 李三群,贾长治,武彩岗,刘海平.基于虚拟样机技术的齿轮啮合动力学仿真研究[J].系统仿真学报,2007(04):901-904. |
| [10] | 方子帆,舒刚,何孔德,赵新泽.齿轮传动多体接触动力学模型[J].机械传动,2009(01):15-18. |
| [11] | 王磊,吴新跃.基于虚拟样机技术的齿轮啮合仿真研究[J].机械工程与自动化,2013(01):29-31. |
| [12] | 阮锦,刘强,阮锋.蜗轮蜗杆的三维参数化设计及其运动仿真分析[J].机械设计与制造,2007(11):74-76. |
| [13] | 刘威.普通蜗轮蜗杆传动建模和稳态传动仿真分析[J].水雷战与舰船防护,2012(02):39-44. |
| [14] | 葛军,刘英林.基于ADAMS的蜗轮蜗杆传动机构的仿真研究[J].机械工程与自动化,2010(06):74-75. |
| [15] | 郭年琴,文铁琦,陈鹏,郭晟.U3-500H型轧钢机轧制力计算与仿真研究[J].钢铁,2014(05):58-62. |
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