How to prevent abnormal noise in MBY630-4 gear reducer
To prevent abnormal noise in the MBY630-4 gear reducer, comprehensive measures need to be taken from multiple aspects such as design, installation, lubrication, maintenance, and environmental control. The specific measures are as follows:
1、 Design and Manufacturing Optimization
Gear parameter matching
Adopting helical gears or modified teeth design (such as drum teeth) to reduce meshing impact noise
Ensure that the tooth flank clearance is 0.001~0.002 times the modulus to avoid excessive clearance causing impact
Processing accuracy control
Gear tooth surface roughness ≤ Ra 0.8 μ m, using grinding or honing technology to reduce friction noise
2、 Installation and Debugging
Installation accuracy
Use a laser centering device to ensure that the coaxiality of the input/output shaft is ≤ 0.05mm/m, avoiding biased vibration
The torque for tightening the anchor bolts must comply with the equipment manual requirements (such as M24 bolt torque ≥ 300N · m)
2. Shock absorption measures
Install rubber shock absorbers (such as Shore hardness 60 ± 5) or spring isolators to reduce resonance transmission
3、 Lubrication management
Oil selection
Select ISO VG 220~320 lubricating oil (such as L-CKD 320) according to the load, and use synthetic ester oil for high temperature conditions
Lubrication maintenance
Replace lubricating oil every 2000 hours, reducing high dust environments to 1000 hours
Maintain the oil level observation window at a height of 1/2~2/3, and check the cooling system when the oil temperature exceeds 80 ℃
4、 Operation monitoring and maintenance
Status monitoring
Regularly detect vibration (≤ 2.5mm/s) and noise (≤ 85dB (A)), and conduct frequency spectrum analysis to eliminate gear meshing abnormalities
Oil ferrography analysis found that when the abrasive particle size is greater than 20 μ m, the machine is stopped to check the tooth surface
Regular maintenance
Check the gear wear (tooth thickness reduction ≤ 10%) and bearing clearance (≤ 0.1mm) every 6 months
Replace worn bearings (such as SKF 6318) or gear components to avoid chain damage
5、 Environment and load control
Load management
Avoid overloading (≤ 120% of rated torque), gradually load to rated value during startup
Environmental adaptation
Install an oil cooler (heat exchange area ≥ 5m ²) in high-temperature environments, and use a magnetic filter respirator in dusty environments
The above measures can systematically reduce noise risks, and it is recommended to establish maintenance records to track changes in key parameters
