我厂74年开始研制了一种具有高低转速和快速微转性能的双速行星进给机构(图1),其特点是结构简单,外形比一般单速行星减速器小约两倍,通用性好,制造容易,适宜于单机半自动作快慢进退和快速微进给之用。如用电磁铁牵引(或气动操纵)可作自动循环进给,在输出轴端或从动丝杆上配置如 Our factory started to develop a two-speed planetary feed mechanism with high and low speed and micro-rotation performance in 74 years (Figure 1), which is characterized by simple structure and about two times smaller profile than general single-speed planetary reducer. Good, easy to manufacture, suitable for stand-alone semi-automatic fast advance and retreat and rapid micro-feed to use. Such as electromagnet traction (or pneumatic control) can be used for automatic cycle feed, the output shaft or driven screw on the configuration