Firstly, transmission gear broken teeth lead to invalid
Gear tooth broken caused by void is more serious in all mechanical automation situation, key contains fracture, fatigue fracture load any fracture, etc., in view of the load in terms of fracture, is refers to the transmission gears suffered once or several times more serious load when the broken teeth, this kind of situation, a fracture generally located in the transmission gear root, fracture surface is vertical and generally not smooth.
Fatigue fracture is to point to drive gear tooth position to cause fatigue crack in the case of long-term high circulation system, fracture, fracture surface can be divided into fatigue fracture surface and the final fracture surface, fatigue fracture surface area can not see plastic deformation, fatigue fracture is likely to occur in the top of the transmission gear. Arbitrary fracture usually occurs at the root of the transmission gear, but special cases may occur elsewhere.
For there are a lot of drive gear fracture prevention measures, to expand circular arc gear tooth half through, clear the location of the production and processing knife is easy to reduce the stress of the tooth, still can enlarge the bending rigidity of shaft and shores, facilitate ease part tolerance levels, and are able to carry out blasting of transmission gear, cold rolling and solution to improve the journal.
Secondly, shaft neck damage lead to drive system does not work
In the whole process of the reducer gear transmission system, it is hard to avoid the damage of shaft neck, which also includes adhesive wear, abrasive particle damage, abrasion, erosion damage and scald. For adhesive wear, the key is to moisten, if the grease layer is detailed and very thick, so the metal material between the touch will be reduced, it is not easy to produce damage.
If the oil slick temperature and working pressure are the same, then the higher the viscosity of the oil, the less damage, in low gear, light load, extreme temperature and other conditions, oil slick is likely to produce damage, such conditions, damage occurred in the pitch circle of the vast majority of the surface of the transmission gear. This damage can be improved by increasing journal strength, reducing journal surface roughness, and increasing oil viscosity.
Abrasive particle damage and abrasives are the key refers to the lubricant is not clean there are residues or refers to the whole process in the operation of metal materials in the middle of the contact caused by abrasive debris, resulting in the transmission gear reducer damage, make the transmission system work invalid.
If the transmission gear is in good alignment and the chafing is not caused by the micro convex body excited on the pool surface, then the damage of all transmission gear will be extended to most areas. Corrosion damage is a chemical change between some chemicals in the lubricant and the metal in the journal, resulting in electrochemical corrosion.
It is only by looking for the real cause of the inefficiency of the gear transmission system of the reduction gear that relative problems can be solved to ensure the effectiveness of the whole process of mechanical equipment operation, improve the efficiency of operation, and promote the progress of the work.
