What should I pay attention to when replacing the elevator wire rope? Elevators are indispensable transportation equipment in both the office environment and the residential environment. The elevator wire rope needs to be replaced according to the usage. Regarding the replacement of elevator wire ropes, all you want to know is here!
Under what circumstances need to replace the elevator wire rope?
Generally speaking, good quality elevator wire ropes can be used for a long time, but in order to ensure safety, the wire ropes need to be inspected regularly.
If during routine inspections, it is found that the wire rope has wire extrusion, core extrusion, strand extrusion or twisting, local flattening, forward or reverse kinking, cage distortion, strand depression, internal strand protrusion, A large number of fractures, surface and internal corrosion, etc., need to be replaced.
How many elevator wire ropes to replace?
If we find that one of the wire ropes has the above situation during the regular inspection, then all the wire ropes of this elevator should be replaced.
Generally, elevators will have multiple elevator wire ropes such as traction rope, speed limit rope, compensation rope, door machine rope, etc. If one of the wire ropes is damaged, then this will warn us that the adjacent wire ropes are likely to appear as well. A similar problem.
Because when the elevator is installed, the steel ropes used are usually produced by the same manufacturer, and the steel ropes of the same model belong to the same batch. The quality conditions are similar. When installed and used at the same time, it looks like there is no abnormality on the surface, but after replacing it, it can be found that in fact, the inside of these steel wire ropes is similar to the damaged steel wire rope.
In addition, because the new wire rope has better extensibility than the old wire rope, and the tension is different, if we only replace the damaged elevator wire rope, it is easy to cause the wire rope to be uneven when the force is applied, which will cause dragging. The pulley wears unevenly, and eventually the traction pulley is damaged. In severe cases, the wire rope may have abnormal slippage with the traction sheave, which may cause a safety accident.
What conditions may shorten the service life of the wire rope?
In order to reduce the frequency of replacement of elevator wire ropes and increase the service life of the wire ropes, we need to pay more attention when installing, using and replacing the wire ropes.
Poor installation of driving wheels or guide wheels, wrong wire rope model selection, wire rope vibration, wire rope diameter mismatch with wheel groove, insufficient lubrication, etc. will accelerate the damage to the wire rope during the actual operation of the elevator, which requires attention.
When replacing the elevator wire rope,
it is also necessary to pay attention to safety and caution, and conduct trial runs and tests after the replacement is completed to ensure safety and reliability.
