1、 Level 1: Direct abnormal operation status Vibration and noise exceeding the standard: Poor contact of the meshing surface can cause "buzzing" resonance sound or "tooth biting" abnormal noise, and the shell will show obvious numbness and shaking, with an amplitude exceeding 0.05mm/s. The noise will significantly increase with the increase of speed. Rapid temperature rise out of control: Th
1、 Free disassembly preliminary judgment (without stopping the machine/easy operation) Distinguishing differences by listening to sound: During no-load operation, sharp whistling is often due to insufficient meshing clearance or oil film rupture; The dull periodic knocking sound points to pitting or local wear on the tooth surface; The abnormal noise caused by metal friction is most likely due
1、 Adjustment standards under different working conditions Normal rated load condition: The first maintenance cleaning of the new machine during the running in period is completed within 200-300 hours, and then the oil tank is changed and cleaned synchronously every 12 months or 2500 hours thereafter. Adverse operating conditions: 24-hour continuous operation, ambient temperature ≥ 40 ℃, hig
1、 Core determination of oil state This is the most direct criterion for determining whether the fuel tank needs to be cleaned: 1. Visual inspection of appearance: Take out the oil sample for observation. If the oil appears turbid, black, emulsified, white, obvious sediment, or if metal debris or gravel impurities are visible in the oil, the fuel tank must be cleaned. 2. Quantitative test
1、 Select based on load characteristics Stable and light load conditions (such as small conveyors and ordinary mixers): The service factor is taken as 1.2-1.3, and the standard cast iron shell WP foundation series is preferred. The minimum machine base size can be selected upwards according to the calculated torque, without the need for additional specification enlargement. Medium impact con
1、 Key points of core parameter accounting Torque safety factor: It is necessary to distinguish between continuous operating torque and instantaneous peak impact. The rated output torque must be ≥ 2.0~2.5 times the actual maximum impact torque. In strong impact scenarios, the service factor is taken as 2.2~2.5, with an additional 10%~15% torque margin reserved. Peak torque verification: The
1、 Bearing damage cycle under different working conditions Heavy load/impact/high-speed working conditions: After complete failure of the lubricating grease, the bearing will experience dry friction, excessive temperature rise, rapid occurrence of raceway scratches, rolling element peeling, and in severe cases, direct sintering and locking within a few hours to 72 hours. In such scenarios, the
1、 Abnormal noise symptoms (the most intuitive early signals) At the beginning, there is a uniform and fine rustling sound, indicating insufficient lubricating grease, oil film rupture, and slight dry grinding of the rolling elements. Subsequently, there was a periodic clattering/impact sound, and the rolling elements made a regular abnormal noise every revolution, indicating that the racewa
