Belt conveyor is widely used in industrial production as a universal equipment for continuous transmission. Compared with the roller conveyor, it has the ability to transport bulk materials and small items. As one of the core components of the belt conveyor, the roller, according to their respective roles and roles, also has different types. The following questions are often overlooked:

1. Can idlers be used for tensioning?

Roller support is one of the belt support methods widely used in belt conveyors. It can effectively reduce the frictional resistance during transportation, and is more suitable for long-distance or large overall load transportation occasions. However, please do not use the roller (idler) supporting the belt for various forms of belt tension, even if it is not a large contact angle, the resulting tension is likely to cause fatal injury to the idler.

2. Is the idler an ordinary unpowered roller?

The unpowered roller runs in a passive state, and the roller rotates only when the goods pass by, which is of low intensity. In the case of rollers, the belt is the goods, and there is an uninterrupted running state between them. At this time, the electrostatic problem is often ignored, and appropriate measures must be taken to remove the large amount of static electricity generated by the high-speed friction between the roller and the belt. (Also applicable to bottom belt friction conveyors)

3. How to reduce the running noise of idler?

The noise comes from the vibration of the roller at high speed, so first of all, it should be ensured that the connection between the roller and the frame is not "loose". In this regard, the performance of the internal thread installation method will be significantly better than that of the spring press-in type. Of course, other measures can also be adopted to eliminate the gap between the rear shaft core and the rack mounting hole by using the latter. In addition, it is recommended to use the Dema Industrial 1200 series. The design of its silent bearing components also has excellent performance in sound absorption and noise reduction that other products do not have.

4. How to make the drive roller "get twice the result with half the effort"?

Try to choose a large diameter drive roller, at this time you will find that the belt conveyor becomes particularly "powerful". In addition, you can also carry out polyurethane (or plastic) treatment on the outer surface of the driving roller to increase the friction force, thereby improving the driving ability. However, it is not recommended to knurl it. This is indeed a means to increase friction, but it will cause damage to the belt, accelerate belt damage, and shorten the service life of the belt.

5. What is the simple and economical corrective design?

Deviation correction (also known as "deflection adjustment") is a problem that all belt conveyors have to face, especially when two-way conveying is required. It is a system engineering, need to have a special correction mechanism design. When there is no special application with large axial external force such as lateral feeding, it is recommended to use drum design, that is, the two ends of the roller are processed into a certain taper, so that it has a certain self-correcting function.

6. The high-speed belt roller shall be adjusted by dynamic and static balance.

Due to the uneven internal organization of raw materials and the shape and position errors formed by processing, in fact, when the roller is running, the center of mass of the rotary body does not completely coincide with the center of rotation, which is not in a balanced state. At high speed, it will cause strong vibration of the roller and even the body, accelerate the wear of the bearing, shorten the mechanical life, and cause destructive accidents in serious cases. According to different applications, Demar Industry can provide you with adjusted belt rollers that meet the requirements of dynamic and static balance.

7. Diameter selection of head and tail roller.

When the belt conveyor adopts the middle drive instead of the end drive, the head and tail rollers are not recommended to choose a large diameter, which is far less obvious than the driving roller with a large diameter, and will also increase the connection gap with the front and rear conveyors, which is easy to cause stuck goods.

The above is some belt conveyor roller design and selection of sharing, hoping to help everyone!