Lubrication Mode and Function of Drilling Machine
Release time:
2020-10-15
The lubrication method of the drilling rig can be divided into: manual painting, oil pump oil supply, closed oil bath, oil gun and oil cup pressure oil injection, etc.
Manual refueling is the simplest way of lubrication. The lifting sprocket, pulley, wire rope, chain, open gear and slideway of the drilling rig are all lubricated manually. Manual fuel injection tools include oil gun, oil cup, oil brush and scraper.
The drilling rig must inject oil in time according to the lubrication system, and pay attention to the following points during oil injection:
1) When applying grease on open parts such as open gears, chains, and sprockets, first remove the dirt and mud on the oiled part, and then apply engine oil.
2) When injecting oil into the walking part, it is necessary to inject oil around the journal. If the injection fails, the rig should be moved for re-injection.
3) When the steel wire rope is oiled, it is best to heat the oil to make it penetrate the hemp core of the steel wire rope.
4) Magic grease must be sold purely, it is strictly prohibited to mix oil.
5) When oiling in winter, the grease is easy to harden. You can add a small amount of engine oil and use it after stirring evenly.
6) The lubrication of the drilling rig adopts a spiral piston propulsion oil gun, with high oil injection pressure and reliable oil injection.
The walking and lifting reducer of the drilling rig is lubricated by closed oil bath, and the rotating reducer is lubricated by oil pump.
All measures to reduce friction and wear between friction surfaces are called lubrication. Lubrication acts on the rig equipment in the following ways:
1) Reduce friction: This is the main function of oil lubrication. Due to the existence of the lubricating oil film, direct contact between the metal surfaces of the transmission parts is prevented, thereby reducing friction resistance and wear loss.
2) Cooling and heat dissipation: In high-speed rotating parts, all heat is generated by friction. If the excess heat is not dissipated, the temperature will continue to rise, causing the parts to burn. For example, the oil cooling of the screw air compressor on the KQ-200 drilling rig acts as a heat sink.
3) Anti-rust: The drilling rig is often exposed to wind, rain, and rain in the open air, and the metal parts are easy to rust. If the metal surface is coated with good grease, it can prevent rust and extend the service life.
4) Seal blockage: In the seal with wool felt on the seal packing and bearing end cover, the oil immersion effectively plays the role of sealing and dustproof.
5) Washing dirt: In the circulating thin oil lubrication system, the liquid oil is continuously circulated to wash the surface, and the surface wear debris and good things can be taken out during washing. The rotary reducer and the main lifting reducer of the drilling rig are both oil-bath gear reducers.
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