我厂铸工车间最近安装、投产两台悬挂式抛丸室,其悬挂运输链驱动部分,采用了由清华大学工农兵学员在老式减速箱的基础上改进设计的3K行星减速箱(图1)。经试制、使用证明,它县有重量轻、体积小、效率高、质量好、噪音小、使用维修方便、结构简单等特 Our factory foundry workshop recently installed and put into operation two suspended shot blasting rooms, which suspended the transport chain drive part, adopted by the workers and peasants and soldiers of Tsinghua University on the basis of the old gearbox to improve the design of the 3K planetary gear box (Figure 1). The trial, the use of proof, it has a county of light weight, small size, high efficiency, good quality, low noise, easy maintenance, simple structure and other special