拉丝机调谐辊转轴结构的改进

Improvement of wire drawing machine tuning roller structure

拉丝机调谐辊装置是直进式拉丝机各拉拔单元之间感应张力变化的机构,是各拉拔单元速度匹配的检测装置,该装置由调谐辊、摆臂、转轴、机架、小杠杆、气缸、位移传感器等部分组成。在使用中出现转轴转动不灵现象,拆出转轴后发现转轴表面及表面油槽处积满灰尘,摆臂及转动轴套之间无间隙等问题。分析原因后对调谐辊装置中转轴结构进行改进:增加轴向定位挡肩;将铜套式转轴改为轴承式;在摆臂与转轴连接处设计挡尘台阶;加大转轴直径。改进后未出现因调谐辊卡阻或转轴变形而不转的故障,提高了设备开机率和产品成材率,消除了人工操作的安全隐患。

The tuning roller equipment of wire drawing machine, which consists of tuning roller, swing arm, katating shaft, frame, small lever, cylinder and displacement sensor, is the tension-sensing part of different drawing units between straight drawing machines, and the test equipment of speed-matching in each drawing unit. katating shaft did not rotate neatly during work, and found dust on the its surface and oil groove, no spaces between swing arms and axis cover of rotation, ete problems after taking katating shaft apart. Some improvement on katating shaft＇ s structure as below ： to add axial locating collar; to change copper cover katating shaft to bearing style; to design dust-shield at the connection of swing arm and katating shaft; to increase the diameter of katating shaft; No failures caused by tuning roller to block or katating shaft distortion to rotate after improvement, which increased equipment operating ratio and products successful rate, and eliminate the security worries of hand-operation.