无金属磨损挤压式膨化机的设计与制造

Design and manufacturing of no metal wear extrusion machine

常规挤压式膨化机的螺杆结构是一端支撑的悬臂旋转轴,其径向跳动量很大,是造成机筒龟裂纹及磨损过快的主要原因。鉴于此,提出无磨损旋转运动副的概念,设计无金属磨损挤压式膨化机,采用具有两端支撑的非悬臂旋转螺杆,及空心平端螺旋套轴,可消除螺杆与机筒的撞击与摩擦,并提出"轴心线重合加工法",即两端支撑座轴心线重合整体的加工工艺。

The conventional extrusion machine is the end support structure of cantilever axis of rotation, but for the heavy radial runout were the main causes for fast barrel turtle crack and wear. In view of this, put forward the concept of no wear rotation vice wear metal extrusion machine, supported on both ends of the cantilever rotary screw, screw sleeve shaft and the hollow flat end, and put for ward ＂ Axis overlap processing method ＂, axis line of the whole process of turning on both ends.