Causes and repairs of the wear and tear of electric hoist transmission gears
Causes and repairs of the wear and tear of electric hoist transmission gears
If there is wear caused by impurities in the lubricating oil, it is generally called abrasive wear. This kind of wear often has deep scraping tracks on the tooth tops and roots. The scraping tracks are perpendicular to the pitch line and parallel to each other. After the scratching occurs, the oil temperature in the reducer rises, and the gear transmission produces sharp noises. At this time, the lubricant must be replaced.
Due to the deviation of the tooth profile and the excessive deviation of the installation center distance, it may cause excessive extrusion of the tooth tip edge and the tooth root transition curve of the gear pair, causing severe wear on the tooth root fillet. Due to the overload of the electric hoist, the tooth root of the driving wheel or the tooth top of the driven wheel is often worn off by a very thin layer.After the gears of the hoisting mechanism reducer are worn, the tooth thickness should not be less than the original tooth thickness. For the gears of the running mechanism, the tooth thickness should not be less than the original tooth thickness. If the gear exceeds the standard, a new gear should be replaced. The abrasion of the tooth thickness of the electric hoist can be checked by measuring the thickness of the indexing circle with a measuring caliper.
