吊钩安全检验及报废标准

- 2021-08-03-

安全检查钩子
1. The 钩子 used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The 钩子 used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. 之后钩子从检验载荷中取出,应无明显缺陷或变形,开口度增加不应超过原尺寸的0.25%。

4. 对于钩子s that have passed the inspection, a mark should be printed in the low-stress area of the 钩子, including the rated lifting weight, factory mark or factory name, inspection mark, production number, etc.

废钢标准钩子s
钩子发生下列情况之一时应报废:
─ 裂纹;
②危险断面磨损达到原尺寸的10%;
③开口度比原尺寸增加15%;
④The torsion deformation of the 钩子 body exceeds 10°;
⑤The dangerous section of the 钩子 or the neck of the 钩子 is plastically deformed;
⑥The 钩子 thread is corroded;
⑦When the wear of the 钩子 bushing reaches 50% of the original size, the bushing should be replaced;
⑧ 当工件的心轴钩子磨损到原始尺寸的 5%,应更换芯轴。