Chain is one of the mechanical transmission parts, its working principle is through the hyperbolic arc chain to reduce the friction between and sprocket, reduce the energy loss in the process of power conduction, so as to obtain higher transmission efficiency.
Because it can accurately transfer power, but also has transmission stability, constant speed, strong adaptability, not affected by size and easy maintenance and many other excellent characteristics, so it is widely used in all walks of life. Especially in today's highly automated production equipment, chain has become an indispensable part of mechanical transmission.
Requirements and principles for lubricants for chain drive.
1. Good permeability
It is easier for chains to lubricate rollers and sprockets, but it is more difficult to lubricate chain shafts and bushings. Because the gap between the shaft and the sleeve is very small, and completely belongs to the open environmental conditions, this requires that the lubricant must have excellent permeability. If the lubricating oil does not have good permeability, it can not penetrate into the interior of the shaft and sleeve, and it can not lubricate the shaft and sleeve.
2, Excellent adhesion
When the chain is running, the chain oil will be thrown off due to the action of high speed. At low speeds, the chain oil drips due to gravity. All these will not only pollute the environment and products, but also cause a lot of waste. Therefore, the lubricating oil is required to have good adhesion, can firmly adhere to the friction surface, and will not fall off due to various effects.
3. Excellent lubricity
One of the functions of lubricating oil is lubrication, but the chain in operation because of different effects, the lubrication performance of lubricating oil will be higher, especially those under heavy load and impact conditions of the chain, the extreme pressure anti-wear requirements are higher, so the general chain lubricating oil are very pay attention to this requirement.
4, Excellent oxidation stability
Usually the chain drive is working in an exposed environment, so the chain lubricating oil must have outstanding performance in terms of oxidation stability.
