Factors affecting lubrication intervals for supported rail shafts
1. Equipment operating conditions
Load size: heavy load equipment (such as frequent loads of heavy objects) friction is more intense, the lubrication cycle needs to be shortened, for example, the original cycle of 1,000 hours may have to be reduced to 300 hours; light load equipment can be extended to 800-1,000 hours.
Running speed: the oil film is easily destroyed when running at high speed, so the lubrication interval should be shortened, such as lubricating once every 500 hours; the cycle can be relaxed when running at low speed.
Ambient temperature: grease aging is faster in high temperature environment, if the temperature is over 60℃, the cycle may be halved; in low temperature environment (e.g. below -10℃), low-temperature-resistant grease should be selected, and the cycle may be extended appropriately.
2. Characteristics of lubrication materials
Grease type: different grease durability is different, general lithium grease can last 500-1000 hours under regular working condition; high temperature composite aluminum grease can only last 300-500 hours in high temperature environment; full synthetic long-lasting grease can be used for more than 2000 hours.
Lubrication method: automatic lubrication system can continuously supply oil, the cycle can be extended; manual application requires more frequent maintenance, usually every 500 hours or so to replenish the oil.
3. Use of environmental conditions
Dust and impurities: processing workshop and other dusty places, grease is easy to be contaminated, need to shorten to about 300 hours of lubrication, and at the same time, should be equipped with a dust cover.
Humidity and corrosion: Humid or corrosive gas environment (such as chemical workshop) will accelerate the deterioration of grease, the cycle should be reduced to 500 hours, and choose waterproof and rust-proof grease.
4. Equipment precision requirements
high precision equipment (such as semiconductor production equipment) on the stability of the movement requirements are very high, even if the working conditions are good, but also have to be lubricated every 300-500 hours, to avoid minor wear and tear affecting the accuracy of the ordinary conveyor line and other equipment can be maintained according to the cycle of 1,000 hours.
5. Installation and Maintenance Factors
If the installation precision of track shaft is poor (such as large deviation of coaxiality), it will lead to increased local friction and shorten the lubrication cycle; regular inspection (e.g. weekly inspection) can adjust the cycle according to the actual wear and tear situation, avoiding the lack of oil or excessive lubrication.
Suggestion for practical application: shorten the cycle to observe the first use, such as 300-500 hours of testing, according to the state of the oil film on the surface of the shaft and wear and then adjust the frequency of subsequent maintenance, and at the same time, refer to the basic requirements of the equipment specification.
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