起重机械使用中的应力测试技术

Stress Testing Technology in the Use of Lifting Machinery

起重机在车间频繁启动制停、高频率的使用状况下,受力部件钢结构表面会出现裂纹、腐蚀、变形的情况,这些缺陷在一定程度上将影响起重机的结构强度,尤其是使用时间超过十年的起重机,工作中易受到恶劣工作环境的腐蚀,影响工作安全。此外,使用时间趋近于设计寿命的或停用超过一年的起重设备,使用者应进行起重机的应力试验,避免以上缺陷引起安全事故,本文将运用应力测试技术分析起重机主要受力部件。

The crane in the workshop frequent start stop, high frequency of use condition, the stress components of steel structure surface cracks, corrosion, deformation, these defects influence the structural strength of the crane in a certain extent, especially the lifting machine for more than ten years, susceptible to corrosion of poor working environment work, work safety. In addition, the use of lifting equipment in time close to the design life or stop for more than a year, the user should stress test of the crane to avoid the above defects caused by accidents, this paper will use the method of stress test analysis of crane main stress components.