Bearing temperature through high is common and great mining machinery, such as reason is unclear, improper disposal, often get twice the result with half the effort, will reduce the use of the bearing life, increase the maintenance cost, and can form bearing burn out.
Therefore, hurtling the reasons at the discriminant problem obtained when the measures of treatment, is the guarantee of equipment for safe operation.
High bearing temperature through the reason cause the bearing temperature through the reason has a lot of, small make up finishing the common several big problems for everyone.
1, smooth adverse smooth use life of the bearing and the friction, wear, vibration and so on have important influence, good smooth is guarantee the necessary conditions for normal operation of the bearing.
According to statistics, about 40% of the damage of bearing and smooth bad are involved.
Smooth to the bearing function mainly includes: 1)
To avoid metal corrosion;
2)
Avoid foreign invasion, the sealing effect;
3)
Get rid of friction heat, avoid bearing temperature rise is too high;
4)
To reduce the friction and wear, prolong the life of bearing.
Usually form a smooth bearing bad elements are: 1)
Smooth oil (
Smooth fat)
The lack of;
2)
Smooth tubing by foreign body infarction, etc. ;
3)
Smooth oil (
Smooth fat)
There is something wrong with the quality;
4)
Not smooth add oil on time,
Smooth fat)
；
5)
Smooth oil (
Smooth fat)
Containing impurities.
2, bearing wear bearings, as important parts used in a variety of big machinery, and some of the machinery (
Such as crusher)
The working environment of dust, when local fine dust into the high speed bearing, form the smooth smooth oil or grease inside the bearing metamorphosis, smooth, and then make bearing wear.
Bearing wear in a state of work, due to the friction force increases, quantity of heat to increase, thus cause the bearing temperature.
3, improper device improper device is bearing heating another important reason.
As a result of the bearing assembly correctly or not, have a direct impact on the life and the host accuracy, so the device request shaft and bearing hole of the center line of the necessary overlap.
If the bearing assembly is not straight, low accuracy, bearing deflection, rotation will generate torque, when provoked bearing heating or wear.
In addition, bearing produces vibration and noise increases, also can make temperature increasing.
4, lack of cooling lack of cooling is usually characterized by: line infarction, chooses inappropriate cooler, the cooling effect is poor.
Smooth pipe cooler fouling infarction, will cause poor cooling effect, especially in the summer spending, this problem especially common.
Individual manufacturer to enhance the cooling effect at increasing or series and cooler.
Cooler fouling is serious, the bearing temperature through the high frequent alarm condition will meet at the scene of the many consumption, compare effective disposal method is annual summer before end of the cooler 'pickling descaling.
5, large vibration coupling poor alignment process does not agree with the request, for example, the rotor is dynamic and static imbalance, poor foundation rigidity and the anchor, rotating stall and surge.
Some of the rotor in the process of operation because of medium corrosion or wear and tear of solid impurities, or shaft bending, will cause uneven centripetal force, so that the bearing heating, vibration, raceway serious wear and tear, until the destruction.
6, check the switch is not timely bearing such as found serious fatigue spalling, oxidation corrosion pits, cracks, wear, or when there is too much noise can't adjust, if change not in time, will form the bearing present conditions such as fever, different sound, vibration, thus affecting the normal consumption.
In addition, improper bearing removal, the vibration of the equipment anchor bolt loose formation, can cause bearing raceway and rolling body, indentation, bearing inner and outer race of cracking.
Bearing in the process of operation, should stop check periodically according to the rules.
7, the bearing quality bad rolling bearing parts in the form of point contact and line contact, long-term work under the high alternating contact stress.
Host of precision, resolution in bearing life and stable level, and therefore must pay attention to in the bearing part purchase acceptance check, used on track of qualified high-quality products.
8, bearing type selection, improper selection should be pay attention to limit speed of the bearing, the bearing load ability, can not apply, super speed, overload that may shorten the use of the bearing life, gain and loss.
Cb group: began in 1987, from more than 30 years, has struggled to mining crushing equipment, sand making equipment and industrial milling equipment, for large engineering projects of highway, railway, water and electricity provide high-grade sandstone material processing plan and complete sets of equipment.
Such as cutting and grinding 'stones, such as cut, such as grinding, after years of steady development, the state industrial technology group co. , LTD. Has become a set research and development, the consumer, sales, service in the integration of high-tech enterprises, carry out mining machinery industry's iconic companies into China, and shine in the international market.
Cb industry to carry out the process of memory in the past 30 years, 70 years in the future, we continue to work hard.
Began in 1987, the state industrial develop gradually from a mechanical equipment manufacturers as a collection of r &d, consumption, sales and service in the integration of high-tech enterprises;
From tunnel depends on the introduction of international advanced technology to the building for research and development laboratory, many technology and patent application to consumption kingdom.
After more than 30 years years of steady, cb industry has now become China's mining machinery industry, with the international well-known enterprise competitive on world markets.
As an 'one hundred enterprises' vision of the company, the state industry will continue to pursue excellence, adhere to innovation, make China national enterprise flicker in the world.
