Good operation and maintenance habits can avoid excessive consumption of drill rods. Here are some examples in this regard.



1. Beat butter frequently


During the use of the crushing hammer, grease shall be applied regularly so that the drill rod can work stably under lubricated working conditions. Long time without butter or directly without butter will accelerate the wear of the drill rod, resulting in premature scrapping or accidental damage. The author has seen that without butter, the drill rod can not be taken out directly in the cylinder block.



2. Avoid using the drill rod as a bucket


It is common to use the drill rod as a bucket. Taking the drill rod to pick up the stone will often lead to the accidental fracture of the drill rod.



3. Avoid long blows


When striking at the same crushing point for a long time, select the appropriate crushing point for operation when using the crushing hammer. If the crushing fails to be struck at one point, re select another crushing point for crushing. The drill rod can not break the rock when it is hit at the same breaking point for a long time. At this time, the impact energy of the breaking hammer cannot diffuse, but accumulates at the drill rod head, resulting in the increase of its temperature and the formation of mushroom shaped tip accumulation, resulting in the decrease of the annealing hardness of the drill rod, making the drill rod extremely wear-resistant, greatly shortening the service life of the drill rod.



4. Replace the inner and outer sleeves in time


Due to the wear of the inner sleeve, the clearance between the inner sleeve and the drill rod is too large. This situation is very easy to cause the eccentric and empty play of the hammer, and it is easy to break the block at the tail of the drill rod. Therefore, the inner sleeve and the outer sleeve should be replaced in time for the normal use of the drill rod. Generally, the clearance between the outer sleeve and the drill rod is 3-5mm. If it exceeds 5mm, it should be considered to replace the outer sleeve. For every 2 sets of outer sleeves, it should be considered to replace one set of inner sleeve. Many car owners believe that as long as the sleeve is not broken, it will not be replaced, which also causes abnormal wear and tear of the drill rod.