"Crane wire rope installation and testing practical norms" national standards GBT5972

State regulations should be considered as a consumable wire rope, when test showed its strength has been reduced to continue to use dangerous, that should be scrapped.
1. Installation
a) The new replacement rope rope should generally be the same type as the original, with the specifications.hoist and trolley If you use different types of wire rope shall ensure that not less than the original replacement wire rope wire rope performance.
b) respond rope through the pulley groove pulley block with radius gauge to accurately measure and record, while using the rope reel inverted dish installation method, that is, from the original tape to be unwound wire rope and wooden wheels on the plate while wearing steel shaft, placed in two dedicated steel frame, while rotating back plate, in order to eliminate the stress generated rope.
c) when installing wire rope,load chain wire rope should be prevented from fighting ring, kink, bend or glue harmful debris.
d) If the wire rope load when certain parts and mechanical friction, you should be able to access the site will be properly protected.
2. Test
a) The user requirements can do regularly observe and record;
b) for lifting the molten or red hot metal, acid, explosives, toxic substances lifting rope, required to check twice a week, usually at least once a month lifting machinery (refer to building site crane) expected rope can be more long-term work of lifting machinery, checked at least once a month;
c) Wire rope inspection site, usually full-length tests, but mainly check the following parts:
* Fixed rope movement and the whole story ends.
* Through the pulley block or bypass pulley rope segment, the mechanical performance of repetitive tasks case, you should pay particular attention to mechanical pulley hanging out around any part of the period.
* Located balance rope pulley rope segment or easy to wear rope segments.
* Rope end portion (crimp rope end buckle rope ends,lift hoist wedge rope end fittings, rope clamp strong side, the pressure pull fixed rope end)
* For use pressed or forged steel rope clamp Si Shengsheng Folder To examine whether there are cracks and use of materials in the presence or absence of the wire rope and rope slip between folders.