Due to the problems in the size matching of the inner cavity of the shovel head of the bucket tooth part that began trial production, the improper operation during the grinding process resulted in cracks in the inner groove of the square hole of the shovel head, and the fracture occurred less than 2h after the loading test. After that, the fitting size is improved. The test shows that the performance is good, which exceeds the service life of high manganese steel bucket teeth.
Compared with the imported bucket teeth, due to the improvement of the structure, the performance is better than the imported bucket teeth. This reduces the times of replacing the shovel head, reduces the labor intensity and improves the work efficiency.
For a long time, the wear resistance and manufacturing technology of excavator bucket teeth have been concerned by relevant people at home and abroad. Although some technical achievements have been made, they still can not meet the requirements of users. Such as reducing the replacement times of bucket teeth and improving the durability of bucket teeth. The market hopes to have a bucket tooth that can not only resist the wear of hard materials, but also withstand strong impact. We need to further study and improve to meet the requirements of users.
According to the construction conditions and service environment, each excavator shall replace 3-5 sets of shovel heads and annular clips for a continuous week. The price of a set of imported bucket teeth is about 1.5 times that of domestic bucket teeth. Under the same usage, the service life of domestic alloy steel bucket teeth is twice that of imported bucket teeth and twice that of high manganese steel. Due to its long service life, prolonging the replacement cycle, improving the operation rate of the machine and reducing the labor intensity of workers, its comprehensive economic benefits are relatively significant.