轧机主传动轴平衡力与液压缸驱动力之间的关系

Relationship Between Equilibrant of Main Drive Shaft of Rolling Mill and Driving Force Providing by the Hydraulic Cylinder

鉴于合理选择平衡力能有效降低平衡力对传动轴引起的应力集中,以某钢厂粗轧机(R2轧机)为研究对象,根据其主传动装置各组成构件尺寸,建立R2轧机主传动装置模型,对其构件进行力学分析并建立平衡方程,由此推导出R2轧机传动轴平衡力与液压缸驱动力之间的函数关系式,采用MATLAB编程,计算出传动轴所受平衡力的理论解。将该轧机主传动装置的三维模型导入ADAMS软件,提取传动轴所受平衡力的仿真解,并将其与传动轴所受平衡力的理论解相比。结果表明,在轧机主传动轴工作角度范围内、相同倾角下,传动轴所受平衡力的理论解和仿真解误差较小,可以忽略不计。由此验证了推导关系式的可靠性,研究结果对液压缸驱动力的选取具有指导意义。

bIn view of choicing equilibrant reasonably, the stress concentration of drive shaft caused by the equilibrant can be effectively reduced. Taking the rough rolling mill （ R2 rolling mill） of a Steel Plant as the research object, a model of main drive shaft device of R2 rolling mill was established according to the size of each component of the device. The mechanical analysis ofthe components was carried out, the equilibrium equationwas established, and the formula relationship between the equilibrant of drive shaft of R2 mill and the driving force of hydraulic cylinder was derived. The theoretical solution of equilibrant of drive shaft was calculated by means of MATLAB programming. The three-dimensional model of main drive device of the rolling mill was introduced into ADAMS software, and the simulation solution of equilibrant of drive shaft was obtained, it was compared with the theoretical solution. The results show within the range of working angle of main drive shaft of the rolling mill, under the same inclination angle, the deviation between the theoretical solution and the simulation solution of equilibrant of main drive shaft is small, which can be ignored. The reliability of the derived formula relationship is verified, and the research results are of guiding significance for the selection of hydraulic cylinder driving force.