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How to extend the service life of excavator bucket teeth?

1. Practice has proved that during the use of excavator bucket teeth, the outermost teeth of the bucket wear 30% faster than the innermost teeth. It is recommended that after a period of use, the inner and outer positions of the bucket teeth should be reversed.

2. In the process of using the bucket teeth, it depends on the working environment to determine the specific type of bucket teeth. Generally, flat-head bucket teeth are used for excavation, weathered sand, and coal face. RC type bucket teeth are used for digging massive hard rock, and TL type bucket teeth are generally used for digging massive coal seams. TL bucket teeth can improve the coal block yield. In actual use, users often prefer general-purpose RC-type bucket teeth. It is recommended not to use RC-type bucket teeth unless it is a special case. It is best to use flat-head bucket teeth, because RC-type bucket teeth are worn out after a period of time. It reduces the digging resistance and wastes power, while the flat bucket teeth always maintain a sharp surface during the wear process, which reduces the digging resistance and saves fuel.

3. The driving method of the excavator driver is also critical to improving the utilization rate of the bucket teeth. The excavator driver should try not to close the bucket when lifting the boom. If the driver lifts the boom, he closes the bucket at the same time. The bucket teeth will be subjected to an upward traction force, which will tear the bucket teeth from the top, thereby tearing the bucket teeth. Special attention should be paid to the coordination of the action in this operation. Some excavator drivers often use too much force in the action of enlarging the arm and sending the forearm, and quickly “knock” the bucket on the rock or drop the bucket on the rock with force, which will smash the bucket teeth. Or it is easy to crack the bucket and damage the upper and lower arms.

4. The wear of the tooth seat is also very important to the service life of the bucket teeth of the excavator. It is recommended to replace the tooth seat after the tooth seat is worn out by 10% – 15%, because the excessive wear between the tooth seat and the bucket teeth. There is a large gap between the teeth, so that the cooperation between the bucket teeth and the tooth seat, and the force point have changed, and the bucket teeth are broken due to the change of the force point.

5. The excavator driver should pay attention to the angle of digging during operation, try to grasp it when digging, the bucket teeth are perpendicular to the working face when digging down, or the camber inclination angle is not greater than 120 degrees, so as to avoid breaking the bucket teeth due to excessive inclination. . Also be careful not to swing the digging arm from side to side when there is a large resistance, which will cause the bucket teeth and tooth base to break due to excessive left and right forces, because the mechanical design principle of most types of bucket teeth does not consider the left and right forces. design.


Post time: Dec-20-2022