To detect the vibration value of the NGW61-3.15 planetary gear reducer frame, the core tools are classified according to 'Basic Measurement → Precise Analysis → Auxiliary Verification'. Priority is given to equipment that is portable and adapted to the working conditions of the reducer, as follows:
1. Core vibration measurement tools (direct measurement of vibration parameters)
Handheld vibration detector (vibration pen/portable vibration meter) : the most commonly used tool, which can measure the effective value of machine base vibration speed (mm/s), acceleration, and displacement. It directly corresponds to standard thresholds such as GB/T 29531. It is simple to operate and suitable for quick on-site investigation.
Online vibration sensor + data collector : suitable for long-term monitoring. The sensor (such as a piezoelectric acceleration sensor) is fixed near the machine base bearing seat and anchor bolts to collect vibration data in real time. The collector can store and analyze trends and provide early warning of abnormal fluctuations.
Spectrum analyzer : Accurately locate the vibration source and determine whether the vibration comes from the machine base itself, internal transmission components or installation problems by analyzing the vibration frequency (such as gear meshing frequency, bearing failure frequency), which is suitable for in-depth investigation of abnormal vibration.
2. Auxiliary verification tools (cooperate to confirm vibration-related issues)
Laser alignment instrument : detects input/output shaft coaxiality and coupling installation deviation, eliminates vibration caused by excessive coaxiality, and indirectly verifies whether machine base vibration is caused by assembly deviation.
: Measure the flatness of the mounting surface of the machine base and the roundness of the bearing seat hole, and check whether the machine base is deformed. Deformation will cause uneven stress and cause vibration.
Torque wrench : Confirm the tightening torque when retightening the anchor bolts to avoid vibration caused by loose bolts and assist in determining whether the vibration is related to installation and fixation.
Infrared thermometer : measures the temperature rise of the surface of the machine base and the bearing seat. Abnormal vibration is often accompanied by local overheating. It can assist in verifying whether the vibration is caused by friction or jamming of components.
3. Scene adaptation selection
Daily inspection: Give priority to the use of handheld vibration detectors , which are portable and efficient and meet the needs for conventional vibration value judgment.
Troubleshooting: Use a spectrum analyzer + laser alignment instrument to accurately locate the root cause of vibration (such as gear meshing problems, coaxiality deviation).
Long-term monitoring: Use online vibration sensors + data collectors to track vibration trends in real time and warn of hidden dangers in advance.
