Correlation of lubricating oil is easy and difficult and there are flying, the surface of the adhesive, or by the highway about rolling bearing, has been in the position, velocity and obtain guidance, sometimes too hurt, bearings, such as pitting, maintains a friction and wear, desquamation.
Direction of most of the working temperature at 200 ℃ or so, more often than not, for example, by more powerful, cooling temperature will not continue to rise, strength and hardness of the guide is very negative, lose the direction the ability to keep accurate, will aggravate the friction and temperature increase, the more rapidly reduced strength and hardness of the material, and soon the direction of the failure.
Due to the use of the SKF 6203 Bearings Purchase, very sensitive, easy to manufacture abrasive dust, if not promptly eliminate, also guide, a vicious circle of the correlation between failure quickly.
Instruction work, therefore, effective lubrication bearing lubricant, movement and the correlation between the surface of the heat, and the fall of the guidance of abrasive dust or dirt.
Correlation and oil lubrication method is used to effectively:
1. The lubrication jet
The lubricant spray near the nozzle will guide lubricant 10-20 m/s in holes position, speed, appeared in the radio is usually cage and inner ring and outer ring, clearance guidelines for the lubrication and cooling method.
Why there are 35 big diameter is 30 – ball bearing, the plane can reach DMN for lubrication $300 million limit, more than 2.5 million.
Double holes or porous nozzle or oil supply increases, but also can improve the efficiency of lubricating oil, more than 2 DuanMian or jet nozzle, can improve the efficiency of cooling and lubrication and values, but when he DMN nearly $20 billion, due to the physical and the direction of the centrifugal inertia 70%, oil flow nozzle is or less.
In the lubrication of 2
Ring in the lubrication oil is the use of direct, centrifugal inertia in the round, with many small holes on the surface of the radial and distribution of oil, he added, with the flow of inner ring, cooled to shaft circle. Doug about two into the oil pipeline, by the way, keep the spare parts such as grinding scraps scour off the plane.
Method in this volume, injection lubrication cover oil less power, and cause less power mix, to guide and improve the situation, including fever is lower than the temperature of inner ring can reduce GuZhangLv direction.
This method can also be the last line of cooling and lubrication. When finally together, make the bearing lubrication can further improve the value of the DMN.
Now this ring and the law of a wide range of ultra-high-speed occasions lubrication function. Can reach 120 multiple values, the correlation between long distance pipeline DMN for 3 million; Pipe direction for 120 mm roller of 120 people, and in the combination of round, short cylindrical roller bearing in 3 million
3. The double lubrication
Guidance and the method is, in fact, the produce hole inner ring is Israel sliding bearing oil film bearing axis of rotation, in order to reduce the effect of greatly reduced the speed of the centrifugal force, and the goal of double lubricated bearing can significantly reduce the speed of circle rolling bearing, the spindle speed of high value orientation, the equivalent of DMN can be further improved.
4. The lubricating oil and gas
Main advantage is that the lubricating oil and gas, the change of the structure, only by the conditions of the bearing can reduce friction orientation between the realization of the value of 800000 DMN 1.5 million highway, the most important advantages, in the escape from this method is the most significant.
(1) the beginning of the lubrication characteristics of oil and gas and oil and gas lubrication principle is the use of quantitative piston will be very tiny amounts of oil injection 0.01 m1 (for example), in a circular intermittently discharge of oil, before to the continuous flow of air and direction.
Oil and gas lubrication characteristics are as follows:
1), a trace of stable oil supply continuous quantitative, so can buy direction so that can control the amount of the minimum amount of oil required. Because of the need to guide and lubricant, different types of different, also for the pistons, with quantitative correlation, such as management of oil supply direction.
Lubrication DongMaCa loss about one over ten, the method is that the DongMaCa is spray lubricating grease and relatively concentrated lubrication and small loss.
(2) due to the oil and gas lubricating grease injection, oil, and less of the guidance of the lubricating oil, therefore, less drop of atmospheric pollution. For example, in the oil and gas lubrication propylene in the headstock, lasts about 2 h after the operation of the waste paper basket only to stere of 0.03 milligram/air pollution degree.
3) or to cut off the dust of external hard to achieve, this is due to provide a lot of air in axis (every 30 l/min – 20 shaft bearings), to increase the pressure of god.
(2) the amount of oil in the oil and gas and oil and gas viscosity lubricant on the lubrication must must meet the minimum amount of oil guidance, therefore, it is very important to choose.
Angular contact ball bearing, the sliding cylindrical roller bearing sliding little more. Oil formula, almost any reference standard.
But the lower the viscosity of oil, the oil or the higher the speed, volume is increased accordingly. In fact, the goods according to the importance and the using conditions of the oil rate to decide.
The correlation of the influence of the viscosity of the lubricating oil, oil and natural gas as the center of circulation, oil lubrication. But in oil supply, under the same conditions, improve the high density slightly to the point. Usually the oil-gas lubrication in 40 ℃, use 3 cmrn2 about 10 – / s of oil viscosity.
Gas lubrication successful research is a new method of lubrication with many characteristics, such as the sliding bearing of much Angle, with the direction of his uncle DMN value can reach about 1.5 million.
5. Elaboration of lubricant
The guidance of the correlation, the high temperature lubricant, considering the lubricant – also have a choice, the good performance of high temperature synthetic oil, synthetic oil or for the oil-based fat. Former state department mil 2 ethyl acetate 7808 liters of oil and mil – 7808 oil in litres, application in aircraft engine bearings.