Checking the wear of the tooth surface of the WPS80-50-A worm gear reducer requires a multi-dimensional method such as appearance inspection, operating status monitoring, dimensional measurement and lubrication analysis. The specific steps are as follows:
1. Appearance inspection
Observation of tooth surface status
Scratches, grooves or metal debris accumulate in the sliding direction of the worm gear tooth surface, and the worm gear tooth surface is polished or sunken, indicating wear
If dark brown molten patches or 'bite welding' marks appear on the tooth surface, it indicates that there is gluing damage
Use a strong light flashlight or magnifying glass to check the tooth surface of the worm gear (copper alloy) and worm (steel):
Color and Coating Changes
Oxidation and rust on the tooth surface or local overheating and discoloring (such as blueness) may accelerate wear
2. Operating status monitoring
Noise and Vibration
It is uniform during normal operation. If there is a periodic 'click' sound or vibration acceleration >1.5m/s² (normal ≤0.8m/s²), it indicates that the meshing gap is too large
Abnormal temperature rise
The housing temperature exceeds 75℃ (at the environment 25℃) or the temperature rises too fast (such as rising to 60℃ within 30 minutes), which may be caused by intensified friction on the tooth surface.
Down drive efficiency
The motor current increases by more than 10% or the output shaft speed is less than 90% of the rated value, indicating that tooth surface wear affects power transmission
3. Dimension and shape measurement
Tooth thickness measurement
Use a tooth thickness caliper or a common normal micrometer to measure the worm gear/worm tooth thickness. The wear amount exceeds 10% of the original tooth thickness and needs to be replaced.
Meeting gap detection
If the gauge measures the normal side gap, if it exceeds twice the standard value (usually 0.1-0.3mm), it indicates severe wear of the tooth surface.
Analysis of tooth contact marks
After applying red elixir powder, meshing and rotating, the contact area should be ≥70% and located near the joint circle. The edge contact indicates axial deviation or uneven wear of the tooth surface
IV. Lubrication and oil analysis
Oil quality inspection
The lubricant is black (including copper chips) or emulsified (water inlet) needs to be replaced immediately and check for wear of the worm gear
Metal Particle Detection
Oil and fluid iron spectrum analysis shows cutting particles (invasion of foreign matter) or sheet particles (fatigue wear), indicating abnormal wear on the tooth surface
