齿轮箱的失效原因与振动诊断

齿轮箱是各类机械设备通常具备的变速传动部件，齿轮和齿轮箱的工作状态的好坏直接影响整个机械系统的工作，它们的故障往往是造成系统不能正常运转的常见原因之一，所以它们的制造质量、工作平稳性和噪声是机器制造质量的重要标志。文章介绍了柴油机齿轮箱的失效形式和原因，并通过振动监测具体分析了某齿轮箱的故障。

Causes for efficacy loss of gear box and diagnosis of vibration

As a common variable-speed gearing part, the working state of gear box may influence directly the work of the whole mechanic system and the faults on gear box will be one of the causes leading to innormal operation of the system. So the making quality, stability in working and the noise become the main marks. In this paper, gear box in diesel engine＇s loss of efficacy is introduced together with its form and causes ; And the fault is analyzed through monitoring for vibration.