What are the differences in the inspection methods of different types of worm gear reducers?

1. First make it clear: 'Common basic inspection' of all models (must do)

Regardless of the type of worm gear reducer, the inspection logic for operating status and basic performance is the same. The following 4 basic inspections need to be completed first, and then deepened based on the model characteristics:

1. Appearance and sealing inspection

• Core: Observe whether there are cracks or oil leakage in the shell (shaft end seal, box joint surface), high humidity/dust environment requires additional inspection to see if the anti-rust coating has fallen off;

• Tools: flashlight, paper towel (wipe the shaft end to detect oil leakage);

• Qualification standards: no obvious cracks, no more than 1 drop of oil leakage within 24 hours, and no aging and deformation of seals (such as lip seals).

  2. Oil temperature and temperature rise inspection

• Core: The worm gear has sliding friction and is prone to heat. It is necessary to monitor whether the oil temperature exceeds the safe range (usually ≤80°C, and ≤90°C when the ambient temperature is ≥35°C);

• Tools: Infrared thermometer (measures the surface temperature of the box and indirectly reflects the oil temperature, with an error of ±3°C), oil thermometer (some large models have built-in oil temperature sensors);

• Qualification standard: temperature rise (oil temperature - ambient temperature) ≤ 40°C, no 'sudden temperature rise' (if the temperature exceeds 10°C within 1 hour, the machine needs to be shut down for inspection).

• 3.Noise and vibration inspection

• Core: Determine the meshing status through noise. Abnormal noises are mostly 'harsh friction sound' (insufficient lubrication) and 'impact sound' (foreign matter or wear);

• Tools: Noise meter (measured 1 meter away from the cabinet, ordinary model ≤ 85dB (A), micro model ≤ 75dB (A)), hand-touch vibration (to sense whether there is 'high-frequency jitter');

• Qualification standards: The noise is stable without sudden changes, and the vibration amplitude is ≤0.1mm (a dial indicator can be used to assist measurement).

  4. Lubrication status check

• Core: Check the lubricating oil level (oil gauge or dipstick) and oil quality (color, impurities). Sliding friction is highly dependent on lubrication;

• Tools: oil level gauge, sampling bottle (take a small amount of oil to observe);

• Qualification criteria: the oil level is between the 'upper and lower limits', the oil quality is transparent and non-turbid (emulsification is milky white, and contains metal debris and needs to be replaced immediately), and the oil type matches (usually medium-load industrial gear oil L-CKC 220# or 320#, 150# is selected for low-temperature environments).