What are the common mistakes in the trial operation phase of WHC280 worm reducer?

During the trial operation phase of the WHC280 worm reducer, common errors are mainly concentrated in the key links of installation, lubrication, debugging and load operation. Ignoring the details of these links can easily lead to early damage to the equipment or substandard performance.

1. Installation and basic errors

The foundation is uneven and unstable: Install the reducer on an unleveled base, or use inappropriate materials such as wooden boards or rubber pads for leveling. This will cause uneven force on the box, deformation, and affect the normal meshing of the internal gears.

Inaccurate alignment of the shaft system: When the input shaft is connected to the motor and the output shaft is connected to the working machine, accurate alignment is not performed. Excessive misalignment will generate additional radial force, causing premature damage to bearings and oil seals, and causing abnormal vibration.

Improper installation method: "C" of WHC type reducer means that the worm is on the side of the worm gear. If the installation position does not meet the design requirements, the lubrication effect may be affected, resulting in poor lubrication.

2. Lubrication and sealing errors

Improper selection or addition of lubricating oil: The correct type (such as L-CKC 220 or 320 industrial gear oil) and viscosity of lubricating oil are not selected according to the instructions. Too much or too little oil will cause problems: too much oil will lead to large oil churning losses, temperature rise, and easy oil leakage; too little oil will lead to insufficient lubrication and aggravated wear.

Ignoring cleaning: Failure to clean the anti-rust oil or impurities remaining in the box before adding new oil will contaminate the new lubricating oil and affect its performance.

Neglect of sealing inspection: Before installation, you did not check whether the skeleton oil seal of the input/output shaft is intact, or whether the oil-resistant gasket of the oil drain plug is installed in place, laying hidden dangers for future oil leakage.

3. Debugging and operating errors

Skip no-load test: load directly without no-load operation. The correct process is to run without load for at least 30 minutes, and only after confirming that there is no jamming, no abnormal noise, and no oil leakage, can the load test run be entered.

Loading too quickly: The principle of staged loading is not followed and 100% of the rated load is directly applied. This can cause a huge shock to the gears and bearings. The correct approach is to gradually load in four stages: 25%, 50%, 75%, and 100%. Each stage needs to run for a sufficient time (such as 2 hours), and the oil temperature is balanced before entering the next stage.

Neglect of operational monitoring: Oil temperature, noise and vibration were not closely monitored during the trial run. If the oil temperature is too high (such as over 85°C), abnormal metal friction sounds or vibrations intensify, these are early signs of failure, and the machine should be shut down immediately for inspection.

4. Other common mistakes

Violent installation: When installing couplings, pulleys and other transmission parts, use tools such as hammers to directly hit the reducer shaft head, which will seriously damage the bearings and journals.

Ignore manual turning: do not turn the input shaft 2-3 times by hand before starting to confirm that there is no internal jamming.