Gears are very important parts in mechanical equipment.It has a wide variety and consumes a lot of money.Gear processing is more difficult than other parts, and the cost is also high.Therefore, the lubrication of gears is strengthened, consumption is reduced, and life is prolonged. Therefore, for gear transmissions, lubrication is undoubtedly of great significance. In addition to reducing friction and reducing wear, it can also play a role in heat dissipation, rust prevention, and shock absorption. The effect of noise, lubrication can improve product quality, reduce production costs, improve production efficiency and product accuracy, extend equipment life and ensure production safety.Today we will take a look at what effect lubrication will have on gear transmissions?

    The effect of lubrication on bonding (gluing)

    Adhesion is a common phenomenon in gear wear. It is caused by the loss of the lubricating film on the tooth surface due to the lubricating film on the gear tooth surface, and direct contact with the metal, resulting in local high temperature friction, which will cause the tooth surface metal to melt After attaching to each other and tearing apart.Scratches and abrasions on the tooth surface are light, and deep grooves are drawn in severe cases, and the tooth surface is even discolored, the hardness is reduced, and the entire gear is worn out.

    The effect of lubrication on pitting corrosion

    Pitting corrosion (surface fatigue wear) is a relatively common phenomenon in gear wear.Improper selection of lubricating oil or poor lubrication method will cause the gear tooth surface to exceed the limit of contact stress. Under repeated action, surface cracks will develop from surface metal shedding, and the tooth surface will show pitting pits, small like pinholes, large ones Such as beans, this is a common fatigue pitting.The viscosity of lubricating oil has a great influence on the occurrence of pitting corrosion.If the gear is lubricated with low-viscosity oil, because of its good fluidity, it is easy to penetrate into the surface cracks. When subjected to high-pressure contact stress, the oil will also generate high pressure in the cracks, which accelerates the development of cracks and the shedding of metal blocks. Cause pitting corrosion.However, oil with high viscosity is obviously not as active as thin oil for penetrating into cracks.The thicker oil film can also alleviate the impact load, uniformize the stress of the contact part, relatively reduce the stress value, and enhance the ability of the tooth surface to resist pitting corrosion.

    The influence of lubrication on vibration and noise

    Vibration and noise appear almost at the same time, and the noise becomes louder if the vibration is severe.Enough oil on the gear tooth surface will make the oil film thicker, thereby damping and buffering, reducing gear vibration and improving running noise.