What are the categories of lubrication methods?
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I would like to ask fellow sailors: what are the different categories of lubrication methods? What are the definitions of the specific categories? Today I came across a new term called circulating centralized lubrication. Is my understanding correct that it refers to a pump equipped with a siphon tank, which uses that siphon tank to circulate oil supply to the double-end face mechanical seal? Thank you all for your answers!
Centralized lubrication system: A system in which a centralized oil source supplies lubricant to the friction points of machines or units. In other words, one lubricating oil pump supplies oil to multiple lubrication points, which may not be located on the same equipment or machine. For example, the lubricating oil system of a centrifugal pump also provides lubrication for the bearing housing. Another example is that two centrifugal pumps, one in use and one as a backup, share the same lubricating oil station. As for the classification of lubrication systems, they can generally be divided into: 1. Grease lubrication: Lubrication is achieved by manually filling grease into the casing. This method is mainly used for rolling bearings with a rotational speed of no more than 3000 revolutions per minute and a temperature of no more than 115°C, as well as friction pairs with a circumferential velocity of less than 4.5 meters per second, high-load gears, worm gear pairs, and chains, steel cables, etc ； 2. Oil lubrication 2.1 Droplet lubrication: A method in which lubricating oil is dropped intermittently and regularly onto the friction surfaces of moving parts to maintain lubrication. It is suitable for bearing components that require a quantitative supply of lubricant; the amount of oil dropped should be controlled properly, as an excessive amount of oil can cause the bearing temperature to rise. 2.2 Splashing lubrication: A method in which lubricant is splashed onto the friction surfaces of moving parts to maintain lubrication. 2.3 Oil spray lubrication: Suitable for bearings with high rotational speeds, heavy loads, and requirements for reliable lubrication. 2.4 Oil mist lubrication: A method of lubricating friction surfaces by introducing oil into an air stream to form a mist. 2.5 Oil chain lubrication: A lubrication method in which an oil chain is used to rotate together with the shaft, carrying the lubricating oil from the reservoir below to the shaft journals. 2.6 Oil immersion lubrication: That is, oil bath lubrication. 3. Solid lubrication, which is lubrication in which the friction surfaces are separated by a solid lubricant. 4. Other lubrication 4.1 Centralized lubrication system: A system in which a centralized oil source supplies lubricant to the friction points of machines or units. 4.2 Circulating lubrication: A lubrication method in which the lubricant is sent to the friction points for lubrication and then returns to the oil tank for reuse. 4.3 Total loss lubrication: A lubrication method in which the lubricant is delivered to the friction points for lubrication and then does not return to the oil tank for reuse. The latter part of the content is taken from Baidu Baike: http://baike.baidu.com/view/3834180.htm
I was wondering if the original poster has detailed information along with illustrations. . . . Thank you, OP!
Forced lubrication and self-lubrication mainly involve lubricating oils and greases