How big the factors affecting the alignment of the EOT crane runway?

Keyword:EOT crane runway   Time:2018-11-29 9:21:18

Alignment of the EOT crane runway is very important!
 A lot of companies and you ignore the point of EOT crane runway that  in order to meet the performance requirements outlined in the material processing industry, there will be some bad alignment, which will cause a chain reaction, and eventually lead to unnecessary wear. Therefore, it is necessary to crane properly when working. But it is clear that the company is still much more important than the users are aware of. Because the user's responsibility is to ensure that the crane tolerance meets the requirements of the CMAA, but in order to ensure the alignment of the EOT crane runway, several factors are essential. For example, the altitude, span, straightness and overall condition  of the runway.
 Poor alignment of runway leads to excessive stress on runway crossbeams and supporting structures of buildings, causing crane to tilt, tilt or bond. Wheel wear and motor drivers are the most common problems. Most companies will only notice wheel wear and wheel replacement, but will not check whether their EOT crane runway is aligned. So it is possible that if you don't  know, your wheelbarrow is experiencing a lot of wheel wear due to the poor alignment of the runway.
 For those of you may not know at all. For example, when a crane runs quietly on the runway, whether it actually aligns with the runway is not known to you. Although there are usually warning signs on the machine, it can be noticed, but this may cause great pressure on your equipment and building structure.
 If your runway has problems, your crane will crack or move loudly when it moves on the EOT crane runway. When you are not sure, experts are a good way to check your system and carry out a complete runway analysis. The runway outline and guidelines are CMAA. Straight, parallel, horizontal and at the same height are their basic requirements for the runway. If any factor in these four factors is distorted, it may affect the performance of the crane and cause premature wear.
 The association of metal building manufacturers and the American Institute of steel structures stipulates the EOT crane runway calibration specification as outlined by CMMA. Some are difficult to explain because the norms they adopt are very long. The next few points are the main norms to remember:
 The runway must be plus or minus ( ) 1 / 4 inches in a single bay with no more than 3 inches or 8 inches above the runway. The four positions of left / right, upper / lower are parallel to each other and must remain the same.
 Span, altitude, straightness, and runway conditions are all three factors that may lead to incorrect alignment of the runway. This is what we just mentioned and the impact of runway alignment.
 The span of the runway is the first thing we have begun to understand. The span of the runway is necessary within the tolerance range, otherwise it will lead to premature wear of the system and even the loss of the crane. The following are the specifications for the span of the EOT crane runway:
 The runway tolerance of less than 50 feet is only 3/16 inches.  The runway with a span of 50 to 100 feet can tolerate even larger inches.
 And cranes over 100 feet can be tolerable up to 3 inches.
 These tolerances are very small especially when compared with the runway span. The maximum allowable change rate for runway numbers is 20  feet per inch. If you exceed these tolerances, your track will not be straight and then will stand up, which will cause your wheels and brakes to deteriorate rapidly in a short time.
 Another important factor for correct alignment of runway is runway elevation. The EOT crane runway height of each runway should be within 3 inches / inch. The rail to rail height is within 3/16 inches for a crane with a span of less than 50 feet, and the rail to rail height of 50 to 100 feet should  be within 1 / 4 inches for larger cranes, while 3 or 8 inches of cranes span more than 100 feet. The maximum span change rate of the crane is 1 / 4 inches above  sea level and 20 feet runway.
 It's also important to remember your crane's manufacturing tolerances in horizontal and vertical clearance. According to the requirements of CMAA and OSHA, all static objects must be maintained by all moving objects. That means your building structure can't be disturbed by your cranes. OSHA has withdrawn from the way to avoid interference, that is, the crane must be installed at three feet from all vertical objects to remove all horizontal objects from two inches. All vertical objects include roof trusses, lamps, pipes, etc.
 Finally, let's not forget the straightness and overall condition of the runway. How much of your EOT crane runway depends directly on the space between the tracks. 1/16 inches is the standard of CMAA. Maybe some engineers will think that the way to increase the space between the tracks is that the heavier the rail is, the bigger the wheel is. But no matter how big the track is, CMAA insists that 1/16 inch specifications are the most standard.
 The runway of your crane can match the skeleton of the whole system. If your runway is not corroded or old, then they are the foundation for everything else. Once the runway is aging or corroded, it will be more likely to distort the span than the new runway; in addition to aging corrosion, the causes of the runway dislocation are crane overload, crane failure and building  settlement call.
 There are many factors that cause incorrect alignment of the EOT crane runway. Any unusual voice or signs should attract our attention. You need to contact a qualified inspector regularly to check your aging cranes, and even  for a period of time, the cranes must be carefully inspected. The inspectors can evaluate your entire system and check whether there is any difference in your runway. Transit and laser equipment in today's technology can be used for  runway inspection, which allows the technician to test EOT crane runways quickly and easily to correct any potential problems. While checking, they can make your cranes back up and run at any time.

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