Oil-gas lubrication is a typical application of gas-liquid two-phase fluid cold cutting lubrication technology. It separates the relatively moving friction surfaces through a gas-liquid two-phase film, preventing direct contact between the surfaces of the friction pair, avoiding the generation of heat and wear, thereby playing the role of cooling and lubrication. Because
Oil-gas lubrication uses compressed air as a carrier to carry lubricating oil, which contains a large amount of gas with a small specific heat. When it passes through the interior of the friction pair, it can take away most of the heat generated by friction and play a role in cooling. effect. Experiments have shown that in a gas-liquid two-phase oil and gas flow, liquid and gas can firmly form a gas-liquid two-phase film, which has a higher load-bearing capacity than a single-phase liquid film.
In addition, when lubricating oil of ordinary viscosity forms a gas-liquid two-phase oil film, because it contains some small bubbles, its thickness is greater than that of a single-phase liquid. That is, the viscosity of a gas-liquid two-phase oil film is greater than that of a single-phase liquid. The viscosity of the phase oil film. The increase in the thickness of the lubricating oil film increases the formation rate of the lubricating oil film. The formation of oil film also has high requirements for the quality of compressed air, because the moisture present in compressed air can directly destroy the formation of oil film, and also directly harm transmission parts such as bearings and gears, reducing their service life, so
Oil and gas lubrication The compressed air used in the system must be dry.
Intermittent lubrication is often used in oil and gas lubrication systems. According to the oil supply cycle set by the system, the system provides a certain amount of lubricating oil at regular intervals. The interval time and oil supply amount can be set and adjusted according to the consumption of each lubrication point. When setting, try to keep the time interval as short as possible and the number of oil pump operations as appropriate. This can ensure that a continuous oil film is formed in the pipeline, and the formed oil film is thinner and finer, ensuring that each lubrication point receives the same amount of lubricating oil at all times. Fresh and continuous.
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