Abrasion Of Bucket Tooth Influences Cutting Force

According to the degree of abrasion of bucket teeth, we divided the bucket tooth into 3 levels. Level zero wear, i.e. the new bucket tooth without abrasion; the intermediate, namely the bucket tooth whose radial abrasion length is 6mm or so and the average abrasion surface is about 22mm; the heavy wear, namely the bucket tooth whose radial abrasion is more than or equal to 15mm and the average length of the wear surface is more than or equal to about 30mm.

The experiment proved that abrasion has the following effects of cutting force of bucket tooth. First, the cutting force increased, especially heavy wear, line cutting force is 6 times larger than that before the wear. Second, the normal force increased with the bucket tooth becoming dull due to the abrasion. The normal force of the intermediate wear increases about 3 times, while that of the heavy wear increased 8 times. Third, from a macro perspective, in the cutting process, with the intermediate or heavy wear the vibration of the machine itself is bad, and the digging resistance increases significantly. Obviously, it is extremely unreasonable of excavator working in such bad condition, and this will cause damage to the transmission parts, make the equipment power greatly overload, shorten the machine service life, and also reduce production capacity.

Excavator Working Principle

Excavator is a kind of fixed assets with large economic investment. In order to improve the service life of it, every excavator should be equipped with one responsible person.


In the construction site, the driver should first observe the geology of working surface and the surrounding environment condition to see if there are obstacles, so as to avoid scratch or damage to the vehicle.


After launch, there should not be any person standing in the bucket, the shovel arm or the track, to ensure safety in production.


When excavator at work, there should not be any person stay or walk in the radius of gyration range or under the bucket. People without Operation certificate should be forbidden to enter the cap, so as to avoid damage to electrical equipment.


Before moving the excavator, the driver should observe surroundings and whistle, in order to avoid accidents. Ensure the location which the excavator will be moved to is without any obstacles in the rotation radius of the space.


After the end of the work, the excavator should be moved away from the low-lying or a geosynclines’ edge. Park it on the ground. Close and lock the doors and windows. The driver must do a good job of equipment routine maintenance, and if there are problems with the vehicle, the responsible person should report the problems and repair it timely.