Everything You Need To Know About Aligning Idler

Centering idler belongs to a kind of idler series products. This product is generally used with rubber conveyor belt and conveyor. It occupies a certain proportion in the use process. Idlers are selected mainly to prevent the deviation of the conveyor belt and ensure the normal operation of the conveyor belt. Moreover, there are many types of centering idler products. Here is a comprehensive introduction about the related contents of the centering idler.

Working principle of centering idler

Centering idler When the center line of the roller is perpendicular to the center line of the belt, take any contact point M between the belt and the roller. At this time, the linear speed V of the belt is equal to the rotation speed V9 of the roller. Since there is no relative sliding speed, there is static friction between the two. The friction force F between the belt and the idler is balanced with the friction force Fd between the idler and the belt. The included angle between Fd and the belt centerline a=0, so when the idler centerline is vertical to the belt centerline, and the belt is not under transverse force, the idler cannot automatically correct the belt deviation.

Centering idler When the center line of the roller is not perpendicular to the center line of the belt, that is, when the roller inclines forward at a certain angle, take any contact point M, where the linear speed of the belt is V, and the rotational speed of the roller is Vg. When the center line of the roller is not perpendicular to the center line of the belt, the relative sliding speed △ V is generated, and there is dynamic friction between them. The friction force F between the belt and the idler is related to the relative sliding speed.

In the same V direction, the friction reaction force Fd of the idler on the belt is opposite to the relative sliding speed of 4V; Because Fd forms a certain angle with the tape centerline α， Therefore, the belt has transverse force F and radial force Fi, and the idler provides the belt with transverse force. Deviation correction force F=Fisina, therefore, when the belt deviates after tilting forward for a certain angle, the roller has the deviation correction ability. The centering idler is designed and manufactured on this basis.

What are the characteristics of aligning idler?

• Superior structural performance, small radial runout, sensitive and reliable action, significant deviation correction effect, and convenient installation and use. It can have a long service life if it is used and maintained normally.
• The overall dimensions are the same as those of ordinary idlers, with low vibration and noise. There is no need to make any changes to the idler bracket and other parts, and it is also convenient to use
• The self-aligning idler operates stably, and has a strong ability to prevent the conveyor belt from damage and deviation, so as to avoid serious accidents in use
• There are many types of bearing pedestals for the aligning idler, and different bearing pedestals have different functional effects. Customers can choose according to their needs.

How to use and maintain the aligning idler?

Precautions before using idler:

• l Before installing the idler, carefully check the appearance for serious scratches. Turn the idler to verify flexibility.
• l According to customer needs, calculate and determine a reasonable installation distance to avoid too sparse or too dense installation.
• The idler shall be installed to avoid mutual friction.

Centering idler maintenance:

• l The normal service life of the idler is more than 20000h, and maintenance is not required. However, the corresponding maintenance date shall be determined according to the site use condition and load, and the floating coal shall be cleaned and maintained in a timely manner. There should be abnormal noise. Do not rotate the idler and replace it in time.
• l When replacing the bearing, the opening of the bearing cover should face outward. After the bearing roller is loaded, it shall maintain proper clearance and shall not be crushed.
• l The labyrinth shall be sealed with original accessories, and the roller can be installed separately during assembly, instead of being assembled together.
• l When using the idler, it is required to strictly prevent heavy objects from hitting the idler.
• l In order to ensure the sealing performance and service performance of the idler, it is prohibited to disassemble the idler at will.

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