Lubrication And Maintenance Knowledge For Small And Medium-sized Rotary Drilling Rigs in Construction Machinery

We have put a lot of effort into daily product maintenance. For heavy machinery, especially pile driving equipment such as small rotary drilling rigs and spiral pile drivers, lubrication and maintenance of core components are very important during high-speed operation. Proper lubrication and maintenance can greatly extend the lifespan of the machine and improve work efficiency.

1. What is the function of lubrication?

The function of lubrication is to reduce friction, minimize losses, and improve equipment efficiency through equipment maintenance measures.

2. What are the five criteria for equipment lubrication?

Designated person, fixed point, regular, quantitative, and qualitative.

3. What are the types of lubrication based on the different working surfaces and limitations of working conditions?

Divided into fluid dynamic pressure lubrication, boundary lubrication, and semi liquid film lubrication.

4. What are the categories of lubricating oil based on viscosity grade?

Divided into three types: light, medium, and heavy.

5. Which three concepts are commonly used to represent the advantages and disadvantages of the viscosity temperature characteristics of lubricating oil?

Viscosity index, viscosity ratio, viscosity temperature coefficient

6. What is solid lubricant? What are the categories divided into?

Solid lubricants use solid powders, films, or composite materials as lubricating materials. It is divided into four categories: soft metals, metal compounds, non-metallic and other inorganic substances, and organic substances.

7. What are the two types of lubrication methods and devices according to the form of lubricant supply to lubrication points?

Divided into separate lubrication and centralized lubrication.

8. What is oil mist lubrication? What are its advantages?

Oil mist lubrication is achieved through oil mist lubrication equipment, which transforms the oil flow into mist and disperses it to the lubrication area for lubrication. Its advantage is that it can achieve good results and dissipate a large amount of heat from the friction pair, reduce working temperature, carry away debris and small dust particles, and lower oil consumption.

9. What factors should be considered when selecting lubricating grease?

Factors such as temperature, speed, load, and environment need to be considered.

10. What are the components of lubricating grease?

Composed of base oil, thickener, stabilizer, and additives.