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2021-051. The use of lifting deviceLifting device is also called "reverse union" and "breaking device". It is an important part of small rotary drilling rigs, used to lift drill pipes and drilling tools.2. Structure and performance of inducerThe up…
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2021-05This type of drilling rig generally adopts hydraulic crawler telescopic chassis, self-lifting foldable drill mast, telescopic drill pipe, automatic verticality detection and adjustment, hole depth digital display, etc. The operation of the whole machine general…
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2021-05Air holes were found around the hot section of the cut bucket tooth workpiece, and air holes were also found on the wall near the core cavity.The pores in kneading castings can be divided into separating pores, intrusive pores and reverberation pores, and the f…
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2021-051. Before using the lifter for the first time or after long-term placement, fill the lifter with grease. After filling, rotate the lower joint to ensure that it can rotate freely without jamming abnormal noise.2. Grease filling method: unscrew and remove the fi…
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2021-05This method is suitable for drilling into hard rock formations, the drilling is not easy to deviate, and it is more advantageous to use in water-deficient areas. Using it to drill into hard rock and pebble layers, the drilling efficiency can be increased severa…
