Daily inspection of extension drilling tools:

1: Check whether the engine water and oil are missing;

2: Check whether the hydraulic oil is missing; (the hydraulic oil inspection position is the liquid level gauge on the right side of the rear of the oil tank, and the oil level should be above the 60 scales)

3: Before use, rotate the rotating support, the rotating support of the drill pipe, the shafts, the sleeves, the power box runway, the drill pipe runway, the rope lifter, etc.

When stopping the cleaning of the drill pipe of the rotary excavator, DTH bits manufacturers must first understand the cause of the sediment at the bottom of the hole.

1. Residues between the bucket teeth of the rotary drilling rig and the bottom cover of the drill bucket.

2. The bottom cover is not closed tightly.

3. When drilling into mud sand and fluid-plastic formations, the drilling slag drilled into the drill bucket is lost during the lifting process, which occasionally causes all the drilling holes to be lost.

4. The soil cut by the outer edge of the bucket of the rotary drilling rig cannot enter the inlet of the cylinder because the bottom of the hole is three-dimensional, so it remains on the edge of the bottom of the hole.

5. The arrangement of the bucket teeth is loose, and the leakage between the teeth cannot be prevented.

6. The drilling footage is too large, the loading is too full, and the muck is squeezed out from the drain hole of the top cover.