Old Zhang is an experienced maintenance worker in the factory. Every day, he has to deal with the steel wire ropes of cranes and elevators. He often said, "This steel wire rope is just like a person's sinews and bones. It looks thick and strong, but if a few wires break inside, something serious might happen!" This statement is absolutely true. Just think, if the steel wire rope used to lift heavy objects suddenly broke, the consequences would... I can't believe it!Broken wires are the most dangerous "hidden injuries" of steel wire ropes.。
So, the question arises: The steel wire rope is wrapped in a thick layer of oil mud, wrapped in a drum, or hung high in mid-air. How do we know if it has been "damaged" inside? Don't worry. Old Zhang and his fellow workers have summarized several down-to-earth methods. Let's learn them together!
Where to look? Pay special attention to the areas that are frequently bent and rubbed, such as the positions around pulleys, where the rope ends get stuck, and those "damaged areas" that are prone to bumps and wear.
What are you looking at? Take a close look at the surface of the steel wire rope. If you see anyThe steel wire ends have lifted upIt pricks out like a small thorn. This is the most obvious "broken thread signal"! Also, ifA certain small section is particularly flatOrA small bulgeNine times out of ten, there are broken steel wires hidden inside.The color of the oil sludge suddenly darkens or turns black? It might also be the "evidence" left by the heat generated by friction at the broken wire!
Isn't just looking enough? Get started! Put on gloves (safety first) and follow the steel wire ropeSort it out slowly. How do you feel under your command? If touchedSmall bumps that hurt my handOrSuddenly, there was a dentMost likely, the steel wire is broken inside.The texture has become particularly soft and not firmThat part also requires extra caution.Don't underestimate this trick. Many accidents are caused by experienced drivers!
This trick is suitable for experienced veterans. When the steel wire rope is in normal operation, it makes a uniform and smooth "swish swish" sound. If it wereSuddenly, there was a strange sound of "click", "clunk" or "sizzle"Just like the sound made when a joint is not smooth, it is very likely that there is a broken wire causing the problem, scraping against other steel wires or pulleys. Upon hearing this "alarm sound", stop the machine immediately for inspection!
For those steel wire ropes that are fixed in position and not too long, there is a folk remedy that works very well -Marking method. Take paint or tape and place it in a clean area of the steel wire ropeMake marks at equal intervals(For example, one point every one meter). Pay more attention to the distances between these marking points in daily life. If discoveredThere is a clear "elongation" between two marked pointsIf it becomes loose, it is very likely that there are broken wires inside this section of the steel wire rope, causing the entire structure to be stretched and deformed.
The first few tricks are very practical, but in the final analysis, it all depends on one's experience and feelings. FacingParticularly thick, at an extremely high position, or in situations where human life is at stakeFor instance, when it comes to steel wire ropes in mines, Bridges, and large cranes, we need more reliable "X-ray vision" -Weite wire rope flaw detector。
You can imagine it asPerform "B-ultrasound" or "take X-ray films" on the steel wire rope. This intelligent instrument:
Gently "hold" the steel wire ropeWalk around the rope once.
It can "sense" internal broken wires, rust and wear that are invisible to the human eye。
It was "drawn" on the screen on the spotIt's clear at a glance where the injury occurred and how severe it was.
Generate a detailed "physical examination report"It is clear and convenient for archiving and tracking.
It is like an indefatigable and extremely precise "steel wire rope guardian"Greatly reduce missed and incorrect inspections and identify hidden major risks in advance! Especially nowadays, many high-quality domestic instruments like Weite are both lightweight and intelligent, and workers all say they are very convenient to use.
The string of safety must never be loosened for a moment!
A broken wire in a steel wire rope is no small matter. It is like a "time bomb" hidden in the dark. Let'sOne cannot rely solely on luck, nor can one be lazy. The daily "seeing, touching, listening and marking" are basic skills.It must be done every day and seriously. For key parts and high-risk situations,Don't be stingful about the money. If you need to hire a professional "doctor" (a flaw detector), you must do soGive it a thorough "physical examination" regularly.
Keeping the "health" of the steel wire rope in mind and implementing inspections in a practical way is the greatest responsibility to oneself, fellow workers and one's family! After all,A steady sense of security is the greatest confidence for us to work! Next time you see a steel wire rope, remember to take an extra look and touch it a bit more. Safety is no small matter!
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