立式车床C5120直流调速系统改造

Reformation of D.C. Speed Governing System of C5120 Vetical Lathe

介绍了 C5 12 0立式车床原直流调速系统及对其进行改造的必要性 ,并介绍了改造后的机床直流调速系统及其调试。

This paper introduced the direct-current speed governing system of C5120 vetical lathe,and the necessity of reformation.Then gave the reformed system and its modification.