减少渗碳轴齿轮热处理变形的措施

• 作 者: 阎福生
• 机 构: 西安煤矿机械厂,
• 出 处: 煤矿机械
• 发表日期: 1982年05期
• 关键词: 热处理变形 渗碳层 渗碳淬火 磨齿 生产周期 齿轮齿 承载能力 齿面 盐浴淬火 加工工序

使用在采煤机上的大轴齿轮要求渗碳淬火(图1),其热处理变形较大,严重的降低了齿轮的几何精度和承载能力。对此,热处理后再采用磨齿或齿面超硬加工等昂贵的机加工工序来保证精度,这不仅延长了生产周期,增加了工时和成本,而且,由于设备条件限制,还影响生产任务的按时完成。原工艺是采用(图2)所示的挂具,每炉

The use of large-shaft gear shearer required carburizing quenching (Figure 1), the larger heat distortion, a serious reduction in the gear geometry and bearing capacity. In this regard, the heat treatment and then use the grinding or tooth surface superhard machining and other expensive machining processes to ensure accuracy, which not only prolongs the production cycle, increasing labor and cost, and, due to equipment constraints, but also affect the production tasks Finish on time. The original process is the use of (Figure 2) shows the hanging, each furnace