What kind of lubricating oil does the vibrating screen use? Comprehensive analysis of lubricant selection and maintenance guide
As an important piece of equipment in mining, building materials, chemical and other industries, vibrating screens are inseparable from the correct selection and maintenance of lubricants for their stable operation. This article will combine hot topics and industry data from the entire network in the past 10 days to provide you with a detailed analysis of the selection standards, common problems and solutions for vibrating screen lubricants.
1. The core role of vibrating screen lubricating oil
Lubricating oil mainly plays the following functions in the vibrating screen: reducing bearing friction, dissipating heat and cooling, preventing parts from rusting, and sealing and dustproofing. Improper selection will shorten the life of the equipment by more than 30% (according to a 2023 industry report).
| Lubrication parts | Recommended oil types | Replacement cycle |
|---|---|---|
| Vibrator bearings | Lithium grease (NLGI grade 2) | 300-500 hours |
| Motor bearings | Synthetic hydrocarbon grease | 600-800 hours |
| gearbox | ISO VG 220 gear oil | 2000 hours |
2. Latest industry data comparison (August 2023)
| brand | High temperature resistance(℃) | Extreme pressure performance (N) | market share |
|---|---|---|---|
| Mobil SHC | 180 | 6000 | 34% |
| Shell Gadus | 170 | 5500 | 28% |
| Great Wall Lubricant | 160 | 5000 | twenty two% |
3. Five Golden Rules for Oil Selection
1.temperature adaptability: The working temperature of the vibrating screen is usually 60-120°C. It is necessary to choose a grease with a dropping point that is 30°C higher than the working temperature.
2.Load matching: Under heavy load conditions, lubricants containing extreme pressure additives such as MoS2 should be used, whose anti-wear performance can be improved by more than 40%.
3.environmental adaptability: In dusty environments, it is recommended to use 3# grease with higher consistency, and in humid environments, anti-rust products are required.
4.Compatibility check: Compatibility testing is required before replacing oil to avoid chemical reactions between greases of different formulas.
5.economic evaluation: Although the unit price of high-end synthetic oil is high, the comprehensive oil change cycle can be extended by 2-3 times.
4. Solutions to common problems
| Fault phenomenon | Possible reasons | Solutions |
|---|---|---|
| Bearing temperature is too high | Insufficient oil viscosity or overfilling | Replace high viscosity oil and keep the bearing cavity filled to 1/2-2/3 |
| Grease turns black | Oxidative deterioration or pollution | Replace and inspect sealing system immediately |
| Abnormal noise | Insufficient lubrication or oil film rupture | Replenish lubricating oil and check the oil filling system |
5. Industry cutting-edge trends
Recently (August 2023) many manufacturers have launched new lubricating products:
1. ExxonMobil released a smart grease containing graphene, which according to tests can reduce the friction coefficient by 45%.
2. A domestic research institute has developed a self-healing lubricating additive that can form a nano-protective layer on the metal surface.
3. The Internet of Things lubrication system is gradually becoming popular, which can monitor oil status and predict oil change time in real time.
6. Maintenance suggestions
It is recommended to establish a three-level maintenance system: daily inspection (8 hours/time), regular maintenance (500 hours/time), and professional inspection (2000 hours/time). Keep complete lubrication records, including: refueling time, oil type, refueling volume, operator and other information.
Through scientific selection of lubricants and standardized maintenance, the life of the vibrating screen bearings can be extended to more than 10,000 hours, and the overall efficiency of the equipment can be increased by 15-20%. For specific product recommendations, it is recommended to consult the equipment manufacturer or a professional lubrication engineer.
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