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机械产品的可靠性,是衡量产品质量的一项重要指标。由于工程机械大多以土、石方为作业对象,载荷变化剧烈,冲击、振动、碰撞等动载荷较大;工作装置、行走装置磨损严重;工作环境复杂,条件恶劣;维修条件较差及在施工中承担的工作量繁重等特点。另外,对于起重、桩工等机械,一旦发生故障,便可能造成安全事故。因此要求工程机械产品,必须具有较高的可靠性,才能满足施工和使用的需要。
The reliability of mechanical products is an important measure of product quality. As construction machinery mostly uses soil and stone as the operating objects, the load changes drastically, and the dynamic load such as impact, vibration, and collision is large; the working device and the traveling device are worn badly; the working environment is complicated and the conditions are poor; the maintenance condition is poor and the construction is under construction. In the heavy workload and other characteristics. In addition, for machinery such as cranes, piling, etc., in the event of a malfunction, safety accidents may occur. Therefore, construction machinery products must have high reliability to meet the needs of construction and use.