Practice has proved that during the use of bucket teeth of any excavator, the wear of the outermost bucket teeth is 30% faster than that of the innermost bucket teeth, which can improve the service life of bucket teeth, save costs and enhance work efficiency. Today, this article summarizes several maintenance methods for bucket teeth, hoping to help you.
1. It is recommended that after a period of time, the inside and outside of the bucket teeth should be reversed.
2. During the use of bucket teeth, the working environment shall be considered
The specific bucket tooth type shall be determined, and the flat bucket tooth shall be used for general excavation, weathered sand, surface coal, etc. RC type bucket teeth are used to dig massive hard rocks, and TL type bucket teeth are generally used to dig massive coal seams. TL bucket teeth can improve the lump yield of coal. In actual use, users often prefer the general RC bucket teeth. It is recommended that RC bucket teeth should not be used except under special circumstances. It is better to use flat bucket teeth, because after RC bucket teeth have been worn for a period of time, like "fists", they increase the digging resistance and waste power, while flat bucket teeth always maintain a sharp surface during the wear process to reduce the digging resistance and save fuel.
3. Pay attention to the correct driving method when driving the excavator
When the excavator driver lifts the boom, he should try not to retract the bucket. If the driver lifts the boom and retracts the bucket at the same time, the bucket teeth will be subject to an upward traction force, which will tear the bucket teeth from the top, thus tearing the bucket teeth. This operation should pay special attention to the coordination of actions. Some excavator drivers often exert too much force in the action of enlarging the arm and sending the jib, and "knock" the bucket onto the rock quickly or throw the bucket onto the rock with great force, which will break the bucket teeth, or easily knock the bucket onto the crack and damage the big and small arms.
4. Wearing condition of gear seat
The wear of the tooth holder is also important to the service life of the bucket teeth of the excavator. After the wear of the tooth holder is 10% - 15%, it is recommended that the tooth holder be replaced. Because there is a large gap between the tooth holder and the bucket teeth, the matching between the bucket teeth and the tooth holder, and the force bearing point have changed, and the bucket teeth are broken due to the change of the force bearing point.
5. The excavator driver shall pay attention to the angle of excavation during operation
During excavation, the bucket teeth shall be perpendicular to the working surface when digging down, or the outward inclination angle shall not be greater than 120 degrees to avoid breaking the bucket teeth due to excessive inclination. It is also important not to swing the digging arm from side to side with large resistance, which will cause the bucket teeth and tooth seats to break due to excessive left and right forces. Because the mechanical design principle of most models of bucket teeth does not consider the design of left and right forces.
