What oil should be added to the steel wheels of road rollers? Comprehensive analysis of key points of lubrication maintenance
Road rollers are indispensable heavy equipment in engineering construction. The lubrication and maintenance of their steel wheels are directly related to the life of the equipment and construction efficiency. This article will combine the hot topics in the field of construction machinery on the Internet in the past 10 days to provide you with detailed answers to the selection standards, precautions and frequently asked questions of road roller steel wheel lubricants.
1. Data statistics on hot topics in the construction machinery industry in the past 10 days
| Ranking | hot topics | Discussion popularity | Associated devices |
|---|---|---|---|
| 1 | Construction machinery lubrication standards update | 980,000+ | Roller/Excavator |
| 2 | Evaluation of new environmentally friendly lubricants | 760,000+ | All categories |
| 3 | High temperature equipment maintenance in summer | 650,000+ | Roller/Paver |
2. Selection criteria for roller lubricant
According to the latest construction machinery lubrication specifications (GB/T 7631.13-2021), the lubrication of road roller wheels needs to meet the following technical indicators:
| Parameter type | Standard requirements | Recommended value range |
|---|---|---|
| Viscosity grade | ISO VG 220-320 | Adjust according to ambient temperature |
| Flash point | ≥230℃ | 240-260℃ |
| pour point | ≤-15℃ | Better below -20℃ |
3. Suggestions on lubricant selection under different working conditions
1.Normal temperature working condition (15-30℃): It is recommended to use ISO VG 220 gear oil, which has good oxidation stability and anti-wear properties.
2.High temperature environment (>30℃): ISO VG 320 high-temperature lubricant should be used, and the replacement cycle should be shortened to 200 working hours.
3.Low temperature environment (<0℃): Synthetic low-temperature lubricating oil needs to be used, and the viscosity index should be greater than 160 to ensure low-temperature fluidity.
4. Precautions for lubrication operations
1.Oil change interval: Ordinary mineral oil is recommended to be replaced every 400 working hours, and synthetic oil can be extended to 600-800 hours.
2.Filling method: Special oil injection equipment should be used to ensure that the oil cleanliness reaches NAS level 9 standards.
3.Oil level check: When the equipment is parked horizontally, the oil level should be at 2/3 of the oil dipstick.
5. Frequently Asked Questions
Q: Can ordinary engine oil be used instead of special lubricating oil?
A: Absolutely prohibited. Ordinary engine oil cannot meet the high load requirements of steel wheel bearings and will cause early wear.
Q: Can different brands of lubricants be mixed?
A: Mixing is not recommended. Different formulations of additives may cause chemical reactions and reduce the lubrication effect.
Q: How to judge whether the lubricating oil has failed?
A: It can be judged by the following characteristics: the color becomes obviously darker, floc appears, and the viscosity changes by more than 15%.
6. Performance comparison of mainstream lubricant brands in 2023
| brand | Product model | Applicable temperature | Oil change interval |
|---|---|---|---|
| Shell | Spirax S6 GX 220 | -25℃~50℃ | 500 hours |
| Mobil | Mobilgear 600 XP 320 | -30℃~60℃ | 600 hours |
| Great Wall | L-CKD 320 | -15℃~45℃ | 400 hours |
Conclusion:Correct lubricant selection and maintenance can not only extend the service life of roller rollers, but also significantly reduce maintenance costs. It is recommended that users establish standardized lubrication files to record the brand, model and usage time of each oil change to provide data support for equipment maintenance. Recent industry data shows that standardized lubrication can reduce the bearing failure rate by more than 30%, which deserves great attention.
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