After your micro cycloidal reducer trips due to motor overload, a systematic and safe process needs to be followed to inspect its internal transmission components. This is usually divided into two stages: "preliminary inspection after power outage" and "in-depth inspection after disassembly".
Step One: Safety Preparations
Before conducting any inspection, be sure to cut off the main power supply of the equipment and hang a "no closing" warning sign to ensure safe operation. Wait for the motor and reducer to cool down completely.
Step 2: Preliminary inspection after power outage (no need to disassemble)
Before deciding to disassemble, perform some simple external inspections to quickly determine the general direction of the fault.
1. Manual turning inspection
Operation: Try to rotate the fan blade of the motor or the input shaft of the reducer by hand.
Judgment: Under normal circumstances, the rotation should be smooth and even, without stuck or abnormal resistance. If it feels very heavy, blocked, or even completely motionless, it means that the internal transmission components (such as bearings, cycloid wheels) may be severely worn, glued, or stuck.
2. Check the return clearance
Operation: Fix the reducer and gently rotate the output shaft in both forward and reverse directions by hand.
Judgment: Feel the idling angle of the output shaft during reversal (i.e. return clearance). If the gap is small and uniform, it means that the internal meshing parts are lightly worn. If the gap is obviously too large, it indicates that the internal cycloidal wheel, pin gear housing or output mechanism is seriously worn.
3. Sensory examination
Smell: Open the junction box or get close to the motor or reducer and smell if there is a burnt smell. This is usually a sign that the motor windings or internal insulation has burned out due to overheating.
Look: Check the appearance of the reducer for oil leakage, damage to the oil seal, and whether the mounting bolts are loose.
Step 3: In-depth inspection after disassembly
If the initial inspection reveals problems, the reducer needs to be disassembled for detailed inspection. Please pay attention to cleanliness when disassembling and place the parts in order.
1. Check the lubrication condition
Inspection: After opening the reducer, first observe the color, viscosity and oil volume of the internal lubricating oil.
Judgment: Whether the lubricating oil is dry, deteriorated, emulsified or contains a large amount of metal debris. Poor lubrication is one of the root causes of wear and overload.
2. Check core transmission components
Bearings: Check all bearings on the input shaft, output shaft and eccentric sleeve. Turn the bearing by hand and there should be no abnormal noise or sticking. Inspect bearing inner and outer races and balls/rollers for wear, pitting or spalling.
