Analysis of the reasons for the consumption of drilling tools

Date: Feb. 28, 2024

If the pressure is too low, it will reduce the penetration efficiency of rock drilling, make the drill bit combination loose, lose the energy transmitted by the drill tool set, and cause significant stress, resulting in instantaneous contact and separation of the contact and joint end faces. The heating of the drilling tool, the “clicking” sound of the joint, and excessive heat result in abnormal thread wear and corrosion points, indicating insufficient forward pressure.

If the pressure is too high, the speed of the drill bit is low, there is a risk of sticking the drill bit, and the bending stress of the drill rod increases.Impact pressure: If the impact pressure is not adjusted properly, it will directly affect the rotational speed, rock formation efficiency, and tool life.Rotation speed: The rotation speed should match the diameter of the drill bit and the impact frequency of the rock drill. The larger the drill bit, the lower the rotational speed. Rotating too fast can damage the periphery of the drill bit.

Swing pressure: Normal swing pressure is very important. It not only provides appropriate anti-interference protection for the drill pipe, but also ensures a certain swing pressure. The increase in rotational pressure is a key factor in maintaining the tightness of the drill tool assembly. Insufficient tightness usually leads to heating of the connecting part, peeling of the thread surface, premature wear and even fracture of the trolley drill head and thread.

Improper use: If the tool is combined with a new tool after use, it will shorten the service life of the tool. In addition, when the drill rod is not aligned, there will be mud on the thread. If the thread is connected without lubricant, the drill tool is easily damaged. Drilling is the most serious damage to drilling tools and should be avoided as much as possible.

The ball gear manufacturer and drill tool manufacturer tell you that the best drilling speed: In handcart operations, in addition to labor compensation and drilling tool purchase costs, other labor costs are also considered fixed costs. The cost of drill rod drilling tools accounts for a high proportion of the cost in rock drilling operations. Therefore, increasing the drilling speed means reducing construction costs, so users attach great importance to improving the drilling speed.