How to keep the roller in normal use Shandong

How to keep the roller in normal use

Article from Qingdao Zhongbang Instrument Co., Ltd. Technology Department

In the daily use of the idler, how to increase the service life of the roller, today we will interpret one of the elements:

First, the V-shaped forward-tilting bracket roller is also damaged faster: the roller installed on the V-shaped forward-tilting bracket always runs in friction with the tape, although the angle of forward tilt is small, but according to practical observation, the tube The amount of body wear is about 2 times that of the idler on the fixed bracket, and the service life is naturally about 1 times lower. The solution is the same as that of the self-aligning bracket. To re-adjust the belt conveyor, the self-aligning bracket must not be in the state of no-load operation. It is also possible not to install a forward tilt bracket.

Second, there are two reasons for the short-term damage of the buffer roller: 1. Due to the large dust at the blanking point, the sealing roller is poorly sealed and the bearing is damaged. 2. The cushioning rubber ring is basically made of recycled rubber. Produced, not only poor elasticity, wear resistance, tear resistance, aging resistance are very poor, impact force is small, the service life is only about 1 year, when the impact force is large, it will break off in ten days, on the tape Serious injury. In the case of helplessness, many belt conveyors began to use expensive cushion beds. At present, two key problem companies have been solved: 1. The new labyrinth seal ensures that the bearing will never be polluted, and the bearing life will reach 100,000 hours. 2. The rubber ring is replaced with automobile tire rubber, which is outstanding in wear resistance and impact resistance. The comprehensive performance of tear resistance, aging resistance, high elasticity, etc., the service life of the buffer roller is increased by 20 times, and the economic benefit of the buffer bed is 10 times higher.

Third, the damage caused by the roller being buried in the material: after the belt conveyor is spread, the timely cleaning is not obtained, the roller is buried in the material, and the friction between the material and the roller causes the resistance to increase greatly. Accelerated wear of the roller body and the tape; the granular material on the end surface of the roller will also damage the sealing ring of the roller and pollute the bearing, causing abnormal damage of the jam. The timely cleaning of the spilled material does not hinder the normal rotation of the roller.

4. Roller damaged in water: The labyrinth seal of the roller is a non-contact seal. When immersed in water, a pressure difference is formed inside and outside the tube. The water emulsifies the grease in the sealed chamber and enters along the gap, which in turn damages the bearing. Therefore, we must understand that the dust-proof roller is not allowed to be used in water. If the environment cannot avoid the roller soaking in the water, the rolling bearing can no longer be used, and the effect of replacing the non-metallic sliding bearing is good.

5. Deformation of the bracket causes the roller body to wear through: due to wrong material selection or cut corners, the design requirements are not met, the rigidity of the bracket is insufficient, the drag of the roller is too large, or the accident is caused by accidents, the roller and the tape The operation is not vertical, not only the wear of the pipe body and the tape is serious, but also the resistance increases at the same time, and the energy loss increases. Replace the qualified bracket.

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