Cutting machine motor bearing failure and what?

With the development of modern mechanical processing industry, the quality and precision of cutting requirements continue to improve, and the requirements for improving production efficiency, reducing production costs, and having highly intelligent automatic cutting functions are also improving.

The core of the cutting machine is inseparable from the motor, and the motor is inseparable from the bearing. When there is a problem with the cutting machine, it is likely that the motor bearing is faulty. Next, together with Xiaobian, to see what problems will happen to the cutting machine motor bearing, and how to solve these problems.

The design of the bearing system of the cutting machine is the key link to determine whether the motor can drive the reliable operation of the equipment. In the case of poor control of the positioning end, there will be a certain amplitude of axial movement. Sometimes the motor shaft movement frequency and strength just reach a level similar to the vibrating screen, resulting in the grease in the motor bearing of the cutting machine continues to move in a certain direction, so under the centrifugal action of the bearing rotation process, the grease continues to be thrown from the bearing cavity.

The actual inspection process found that for the large cavity of the bearing system, there is no good constraint on the oil that is thrown out, and the lubrication effect cannot be ultimately played, and the heat dissipation of the bearing system will be hindered.

To solve this problem, the following measures should be taken according to the specific situation:

Appropriately change the inner cavity size of the inner and outer covers through the bearing, increase the oil baffle or oil dumping device, and check the positioning relationship of each bearing fulcrum.

Of course, it may also be that the grease deteriorates, the main reason is that the heat degree of the motor bearing of the cutting machine is higher than the working temperature factor of the grease. If there is no problem with the processing and assembly accuracy of the bearing system, it may be related to the choice of grease, especially for motors operating in high temperature environments. There are more bearing heating problems caused by other reasons, which will not be described here.

Bearing heating and grease degradation failure are directly related to the two elements, bearing heating to a certain extent will lead to grease degradation, and grease degradation will aggravate bearing heating.

The grease running in the motor bearing of the cutting machine is damaged by mechanical force and the fiber of the thickener is broken, shortened, and the ability to maintain the structure of the grease is reduced, that is, the consistency changes, if the consistency changes very much, it will cause loss from the working surface. At the same time, when running, the grease will be affected by the rise in temperature, the base oil will evaporate and reduce or some of the base oil will lose oil due to the colloidal destruction of the fat, so that the oil content of the fat is reduced, and there is also the possibility of oxidation and deterioration.

From the effect analysis of the actual operation of the cutting machine motor, the matching relationship between the grease and the bearing system and the environmental conditions is very critical, and for any motor, the use of high-quality grease can greatly reduce the bearing system failure.