1. The ƙugiya used in the lifting mechanism driven by manpower is tested with 1.5 times the rated load as the inspection load.
2. The ƙugiya used for the power-driven lifting mechanism shall be tested with 2 times the rated load as the inspection load.
3. Bayanƙugiyaan cire shi daga nauyin dubawa, bai kamata a sami lahani na zahiri ko nakasa ba, kuma haɓaka matakin buɗewa bai kamata ya wuce 0.25% na girman asali ba.
4. Zaƙugiyas that have passed the inspection, a mark should be printed in the low-stress area of the ƙugiya, including the rated lifting weight, factory mark or factory name, inspection mark, production number, etc.
TheƙugiyaYa kamata a soke shi lokacin da ɗaya daga cikin waɗannan yanayi ya faru:
‘Karfe;
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â ‘¢ Digiri na buɗewa ya ƙaru da kashi 15% idan aka kwatanta da girman asali;
④The torsion deformation of the ƙugiya body exceeds 10°;
⑤The dangerous section of the ƙugiya or the neck of the ƙugiya is plastically deformed;
⑥The ƙugiya thread is corroded;
⑦When the wear of the ƙugiya bushing reaches 50% of the original size, the bushing should be replaced;
‘§ Lokacin da mandrel na yankiƙugiyaana sawa zuwa 5% na girman asali, ya kamata a maye gurbin mandrel.