The use method of drill rod
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During the use of drill pipe, its service life and degree of wear are closely related to the method of rock drilling. This involves several aspects.
1. Different types of rock drills have different effects on the drill rod
Rock drills are divided into two types: pneumatic rock drills and hydraulic rock drills. The force exerted by the hydraulic press on the drill rod is relatively small, and the continuous application of the force is relatively long. The pneumatic machine exerts a relatively large force on the drill rod, and the continuous force time is short. It can be seen that the pneumatic rock drill damages the drill rod more than the hydraulic one during the use of the two different types of rock drills. However, in China, pneumatic rock drills are generally used because of the cost and ease of use.
2. The power of the rock drill used is different, and the wear of the drill rod is also different.
The greater the working rate, the greater the force exerted on the drill rod, and the wear and consumption of the drill rod will also increase if the speed of the footage is too fast. The drill rod of the same specification and performance can use a rock drill with a lower power to extend its service life.
3. The influence of different rock quality on the service life of the drill rod is also different
When the rock quality is relatively hard, the power used by the rock drill is relatively large, and the force transmitted to the drill rod is relatively large. When the rock quality is relatively soft, if the power used is still the same, then the impact rate is larger and reversed The greater the return force, the greater the tensile stress of the drill rod and the greatest damage when emptying.
When using the drill rod in the process of rock drilling, it is necessary to have a more suitable propulsion force, and the power used must be combined with the softness and hardness of the rock, so as to further improve the service life of the drill rod.
