refers to a lubrication system lead to a series of oil supplied to the lubrication portion of the lubricant, and the oil discharge generic term accessory device. The lubrication system can be divided into five categories, i.e., circulating lubrication system, centralized lubrication system, the lubrication system, spray, immersion oil splash lubrication systems, oil and grease lubrication system of total loss.
1. Lubrication system consisting of
Although the design of the lubrication system should be determined according to the characteristics and conditions of use of machinery and equipment, but it always composed of several major components such as hydraulic pumps, tank, a filter, cooling means, heating means, a sealing means, buffer means, safety devices, alarms composed.
2. Lubrication systemFunction
function of the lubrication system is continuously in sufficient amounts during engine operation, the temperature of the oil delivered to the appropriate clean the entire surface of the friction drive member, and the oil film between the friction surfaces to achieve fluid friction, thereby reducing the frictional resistance, reduce power consumption, reduce engine wear, to achieve the purpose of improving the durability and reliability of engine operation. Lubrication pressure lubrication, splash lubrication, grease lubrication in three ways.
3. The lubrication system works
First of all, we have to figure out lubrication oil features: 1, anti-wear, impact action 2, the heat dissipation effect of 3, 4, the sealing effect cleaning action. Works lubrication system oil pump is driven by rotation of the crankshaft and the transmission gear oil will be pumped to a certain pressure
from the oil pan through the
┌ → slider crank mechanism (crankshaft, connecting rod, piston pin, cylinder walls, etc.)
machine coarse filter fine filter unit → → → │ → main gallery cam valve train (cam, rocker arm valve, timing drive gear, etc.)
└ → accessories (air compressors, high pressure pumps, booster, etc.)
and then through the oil spill cleaning station flush with the workpiece friction metal chips, debris, etc., is returned to the oil pan shell.
The lubrication system works
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4. conservation lubrication system
to ensure the basic requirements of the lubrication system
in general, machinery lubrication system should meet the following requirements:
1) ensure uniform while continuously supplied under pressure to the lubrication points of the lubricant, a sufficient amount of oil, and may need to adjust.
2) a high operational reliability. Using the effective sealing and filtration means holding the lubricant clean, prevent dust from the external environment, the water entering the system and to prevent pollution of the environment due to leakage. Simple
3) structure, as standardized as possible, easy maintenance and high-speed adjustment for easy inspection and replacement of the lubricant, the initial investment and low maintenance costs.
4) indication, protection and alarm condition monitoring device with the operating parameters, and can find lubrication failure.
5) when needed to ensure proper lubrication system operating temperature lubricant, can be equipped with preheating means and a heat exchanger and cooling.
In the design of the lubrication system must consider
three kinds of lubricating components
① the friction type (e.g., bearings, gears, and other types of support rail member), and its operating conditions (e.g. speed, load, temperature, and film formation mechanism) [ 123]
② types of lubricants (such as lubricating oil, grease or solid lubricant gas) and their properties
type and the oil lubrication method ③ conditions.
selection principle lubrication system
In the design of the lubrication system, the lubrication of each part of the machinery to deal with equipment requirements for a comprehensive analysis to determine the varieties used in the lubricant, minimize category lubricants and lubricating device. in the main guarantee good lubrication condition gross pieces, considering the lubrication of other lubrication points, to ensure the quality of lubrication. Lubricating system should not only meet the need for equipment operation, lubrication, and should be compatible with the environment and working conditions of the apparatus, in order to avoid undue friction, temperature, noise, and premature failure. Should the lubricating oil feed system kept clean to prevent intrusion of external dust or the like pollution, damage to the friction surface, to improve the reliability in use. The main elements of the complex system, such as lubricating pumps, dispensing valves, filters, etc. should be suitably combined together and as standardized as possible, ease of access for maintenance, cleaning, and maintenance decrease in the running and maintenance costs, to prevent personal equipment accidents.
When selecting the lubrication system, the system is to be noted that the degree of automation and reliability, attention installation instructions, and alarm condition monitoring means, predicting and preventing early lubrication failure, and to improve the life of the device operation rate.
Common Problems lubrication system and processing method
Analysis lubrication system:
the lubricating oil system has the following four effects: reduce the wear of sliding parts, extend component life; reduce friction power; cooling effect, can lead away the frictional heat, the parts of the high operating temperature, however, the sliding portion to ensure the necessary operating clearance, the contact surface being prevented from burn. These effects have a direct or indirect relationship with the efficiency of the device. However, the lubricating oil will oxidize at elevated temperatures, these effects are reduced. And the solids generated, resulting in wear of moving parts, resulting in leakage of the compressed gas.
Processing Method:
reasonably high quality lubricating oil, the oil must have sufficient viscosity under high temperature conditions, in order to maintain a certain gap sealing ability of each seal; there should be a high flash point ; have a good chemical stability, good safety oxidation, and gum and coke is reduced to a minimum. In addition also regularly check, oil change, to clean oil tank, pipeline, oil filter and lubricator, etc. on a regular basis to ensure the smooth flow of oil.