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How to maintain the gears of the biomass pellet machine

Jan 11, 2021

Gear is a part of the biomass pellet machine, it is an indispensable core part of the machine and equipment, so its maintenance is very critical

Gears vary according to their effects, and many quality problems arise. Therefore, better maintenance can reasonably and effectively prevent gears from ineffective forms such as pitting, damage, gluing, and plastic disengagement. If the gear is fully exposed during the operation of the gear, it will easily fall into dust and impurities, and good lubrication cannot be ensured. The gear is easy to be damaged and the shape of the tooth profile is damaged, resulting in shock, vibration and noise. It may be due to the thinning of the tooth thickness. Broken gear teeth.

1. Improving the sealing and lubrication conditions, replacing waste oil, adding anti-friction additives to the oil, ensuring the cleanliness of the oil, enhancing the hardness of the tooth surface, etc., can all enhance the ability to engage in abrasive damage.

2. The use of sprocket: When using machinery, the sprocket should avoid using even-numbered sprocket as much as possible. Such sprocket will accelerate the damage of the chain. For example, if a certain tooth profile is not precise, the even-numbered teeth will wear off some chain links, while the odd-numbered teeth will wear in series, which will damage evenly and ensure the regular life of the chain.

Improper use and maintenance, for example, when the new machinery and equipment are put into production, the gear drive of the biomass pellet machine has a running-in period. During the running-in period, there are deviations due to production and assembly, including surface unevenness factors, and meshing gear teeth In fact, only the tooth surfaces are in contact with each other. Therefore, during the initial operation, these initial contact areas will be damaged first due to the larger force per unit area. However, when the gears are running for a period of time, the actual contact area between the meshing tooth surfaces expands, the force per unit area is relatively small, and the lubrication conditions are further improved. Therefore, this kind of initial tooth surface damage will gradually Stable and disappear.

If the hard tooth surface is rough, the running-in time is longer; the harder tooth surface is smooth and the running-in time is short. Therefore, the harder tooth surface is designed to have a smaller roughness. Practical experience has proved that the better the gears run in, the more matched the meshing conditions are.

In order to prevent abrasive damage during the running-in operation, the lubricant should be replaced irregularly. If working at full load at high speed during the running-in period, the damage will be aggravated, resulting in wear debris, resulting in damage to the abrasive particles. Damage to the tooth surface will cause the shape of the tooth profile to change, and the tooth thickness will become thin.