☑️ Crane and gate crane
Damage to the crane wire is the most common failure of a overhead and gantry crane. This failure can include things such as corrosion, wear and tear, tearing of one or more strands of the tow wire, wear and tear, which must be checked regularly to prevent complete destruction of the tow wire and its failure. The failure of the cable, which is very common in cranes, should be taken very seriously, because in case of a complete rupture, it can cause an accident and cause a lot of financial damage and possibly life. Since the overhead and gantry crane is responsible for moving heavy loads suspended in the air, it is possible to pass these loads over the places where machines, equipment and workers are working. The sudden rupture of the cable and its heavy cargo falling on the people and equipment below it is considered extremely dangerous, but don't worry. The occurrence of such an event is highly predictable and preventable and can be prevented with a simple visit and ensuring the health of the cable. The towing wire will never break all at once and the signs of such an unfortunate event will already appear in the wire. In case of any inconsistency with the standards, the cable can be replaced or repaired in a much less dangerous condition.
Another problem that may occur for the wire rope is the wire rope coming out of the revving system. This problem occurs when the cable is subjected to severe and long-term tension and its diameter has decreased and the core support has been destroyed by decreasing its nominal limit, or it has suffered internal corrosion, or it has caused wear of the outer wires. To prevent this from happening, the conditions of maintenance and use of gantry and overhead cranes must be basic and standard. High speed loading that causes a wire, reel, coil and carriage assembly to hit can cause such a problem. Also, very hot and humid environmental conditions or exposure to chemical vapors of the crane as well as improper lubrication can cause this problem. It is recommended to check the cable before each shift and if evidence of damage or failure is observed or even if it is suspected that the cable is slightly damaged, the cable should be temporarily replaced so that it can be checked by the relevant technicians and experts in the future. be reviewed. With proper lubrication, the friction of the wires can be reduced, which provides more protection against corrosion.
☑️ Deviation and the balance of the crane
The alignment of the longitudinal beams (band) of the crane should be designed and installed by a professional manufacturer or the relevant service company. After installing the bridge on the longitudinal axis, make sure that it is level, if the rails are not level, they will put a lot of stress on the bridge, which will cause the crane assembly to be crooked, increase the need for repairs and shorten its life. The problem of cranes not leveling properly is caused by forces that were not considered in the design and installation of the overhead crane. Over time, these forces add tension to the beams of the runway as well as to the girders, structure and bridge, which causes serious damage to the gantry crane. These forces can sometimes affect the rail supporting structures and cause a slight or noticeable deformation in them. Force tensions caused by the misalignment of the runway can lead to things such as: "Crane jamming, out Derailment of the bridge, failure of minor equipment, reduction of life span, reduction of productivity, need for frequent repairs and replacements, and costly maintenance and use of overhead cranes. But the wheels of the wheels are the most damaged in such conditions because they do not move around their specific axis. So, if your wheels are constantly worn on one side or off the axis, one of the strong possibilities is that the tire is not aligned or deviated. Premature wear of motor drives is another sign of this problem in electric and chain overhead cranes.
The best way to avoid overhead crane misalignment and misalignment problems is to have your crane inspected regularly by a reputable third-party service provider.
☑️ Crane and Gate Crane Bridge Abrasive
The wheels installed on the cleats on both sides of the bridge, which move on the rails of the longitudinal bands, sometimes suffer from wear, decay and destruction, and in most cases, this failure is caused by the lack of alignment of the bands. If the band is aligned correctly, the wear of the bridge wheels can be largely prevented. In addition to the wear of the wheels, this misalignment can cause problems for the carriage, engine and other equipment of the electric overhead crane. So, first of all, the cause of the problem should be identified and repaired, and then measures should be taken to solve the problem of the wheels. Arrangements such as repair, replacement or reset.
Wheels wear out naturally and due to normal use and need to be replaced. If the wheel is made of suitable alloys that have more carbon, they will be more resistant to wear, and if the steel used in them is more, the life of the wheel will decrease and they will need to replace parts in shorter intervals. Apart from the alloy of the wheel itself, there are methods of heat treatment to increase the hardness of the wheel and increase its life. The useful life of the wheels directly depends on the useful life of the bearings and the wheel hubs, because these two parts are the first parts that wear and tear in the wheel. If the bearings and flanges fail before the predicted time, it should be suspected that the bands are not aligned and the crane is tilted. This tilting can cause excessive pressure on the wheel, causing it to wear and also put the runway beams and the supporting structure in serious danger.
☑️ damaged hooks
Although in many cases, instead of hooks, other items such as magnets are used in the crane to connect the load and move, but it should be noted that each Which of these devices suffer frequent failures due to frequent use? The hook, like other parts of its colleagues, is designed to hold the load in the height axis. If it is pulled from the hook beyond its tolerance (it has nothing to do with the weight of the crane itself), it will cause the hook to bend, stretch or crack. The first few times it may not appear to be a problem, but if the hook is not used properly, it can even break or break and get damaged. Before each work shift, the hook should be checked and its health confirmed, and as soon as minor problems are found, it should be replaced or at least not used until the next service.
☑️ Disruption in Crane Electricity System
Problems caused by faults in the power supply and wiring system are another common problem of the electric overhead crane, which can cause serious problems or completely stop its operation. If such a problem is observed in the crane, it should be stopped immediately and the service company or the support company should be informed so that they can send their technical team to investigate, diagnose and fix the problem. Such a problem can be caused by various and numerous failures that require skilled technicians in this field to identify it. From the failure of a small electronic component to the half-burning of the relevant boards or the tearing or rotting of the electricity transmission wires due to being stuck or worn on the busbars or connecting the electrical panel or other cases. If this problem is not dealt with seriously and professionally by experienced technicians, it can cause problems or breakdowns in engines, so it is necessary to prevent serious and expensive problems with relevant and low-cost investigations.
