一、前言为了改善环形件轧机夹紧辊的受力条件,从而满足生产的需要,我们在改造环形件轧机时,对夹紧辊(轴)增设开闭架。原来的夹紧辊采用悬臂结构。由于夹紧辊直径受到工艺条件的限制,而实际生产需要更大的轧制力和更好的刚度,提高产品的成材率和产品质量,这样,增设开闭架势在必然。国外同类轧机亦多采用此类结构。这 I. Preface In order to improve the force conditions of the nip roller of the ring mill to meet the production needs, we have added the opening and closing frame to the nip roller (shaft) when rebuilding the ring mill. The original clamping roller cantilever structure. As the clamping roller diameter by the process conditions, and the actual production needs greater rolling force and better stiffness, improve product yield and product quality, so that additional opening and closing rack is inevitable. Similar foreign mills also use such structures. This