1. Abnormal auditory and olfactory signals
Harsh screams and friction sounds: Under high-speed and heavy-load conditions, if the tooth surface lubrication fails, causing a sudden rise in local temperature, and the metal surface is fused and then torn apart, severe "harsh screams" or "scorching sounds" will be produced, accompanied by strong metal friction noises.
Odor generation: When severe gluing or burns occur, obvious odors can often be smelled, such as the smell of oil or burning metal.
2. Abnormal temperature and vibration
Shell temperature rises sharply: Excessive temperature rise is an important signal of gear damage. If the surface temperature of the reducer housing continues to rise or is locally hot (for example, a seriously high state exceeding 60°C), it indicates that the internal friction power has increased sharply, and a high degree of vigilance is required.
Increased vibration: Along with abnormal noise, the device usually experiences significant body vibration. This kind of vibration is often caused by metal adhesion and severe friction on the tooth surface.
3. Deterioration of lubricating oil condition
Oil temperature suddenly rises: In actual operation, if the oil temperature suddenly rises abnormally, this is a direct warning signal of internal failure (including gear burn). At this time, the vehicle should be stopped immediately for inspection.
Oil deterioration and contamination: High temperature on the tooth surface and metal friction will cause accelerated oxidation of the lubricating oil. Through observation, you can find that the oil becomes darker, blacker, agglomerated, or even milky or smells bad.
4. Early microscopic changes in tooth surface appearance
Although severe burns can lead to tooth surface damage, the following early microscopic signs may appear on the tooth surface before entering the damage stage:
Local discoloration and gloss loss: Some tooth surfaces may be discolored due to local high temperatures, or the original gloss may be significantly reduced.
Surface roughness and scratches: The tooth surface may lose its smoothness and appear slight scratches, roughness or wrinkles visible to the naked eye. This is a trace left by the rupture of the oil film and direct metal contact and friction.
Maintenance suggestions: Once the above-mentioned sudden rise in oil temperature or abnormal noise occurs during operation of the TY series reducer, it must be shut down immediately for inspection. It is recommended that the machine be put back into operation only after the fault has been corrected to prevent further damage.
