高速重载压力机曲轴轴承热平衡技术研究

Study on thermal balance technology of crankshaft bearing of high speed heavy duty press

部件热变形是影响压力机加工精度的一个重要因素。在高速重载的情况下,机床的热变形问题将显得尤为突出。本文针对压力机的热平衡技术展开研究,主要研究了曲轴上各处轴承的发热量,并依此对轴承结构进行优化,以确保机床的高效稳定运行。此外,本文研发了一套压力机温度检测与冷却系统,该系统依托机床PLC与实时温度数据,实现了曲轴轴承的自适应冷却。实际应用表明,本文提出的热平衡方法和冷却系统能有效平衡轴承温升,对于提高机床精度具有重要意义。

Thermal deformation of components is an important factor that affects the machining accuracy of presses.In the case of high speed and heavy load,the thermal deformation of the machine tool will be particularly prominent.In the text,the study on the thermal balance technology of the press has been carried out.The heat value of the each bearings on the crankshaft has been mainly studied,and the bearing structure has been optimized accordingly to ensure the efficient and stable operation of the machine tool.In addition,a set of press temperature detection and cooling system has been developed,which relies on the machine tool PLC and real-time temperature data to achieve adaptive cooling of crankshaft bearings.The practical application shows that the heat balance method and cooling system proposed in the text can effectively balance the increasing of bearing temperature,which has great significance for improving the accuracy of machine tools.