This paper mainly introduces a new design of turn milling compound machining center of the main transmission box, the main characteristics of the main transmission box is that it transmits through a kind of imported silent chain which features with simple structure, convenient assembly, smooth transmission, low noise, etc. This kind of structure has been used in the contract products, and it is found effective.%设计了一种新型车铣复合加工中心的主传动箱,这种主传动箱的主要特点是采用一种进口的齿形链传动,具有结构简单、装配方便、传动平稳、噪声小等优点。这种结构在合同产品中已经应用,效果较好。
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