How to solve the slipping phenomenon of drilling rig?For this problem,everyone must first understand why slippage occurs before they can think of a solution.

　　Why is there slipping phenomenon:

　　When slipping occurs,the muck dropped by the drilling rig at this time has lost the original integrity of the solid soil.After the second drilling,the tooth tip is directly inserted into the muck,and the floor surface of the drill bucket is directly pressed against the muck.As the drill bucket rotates and drills,the unevenness and gaps of the falling muck are completely compacted.When the muck cannot be compressed,the plane of the bottom plate is supported by the muck,and the bucket teeth are already drawn out.The groove rotates repeatedly.At this time,three layers are formed.The first layer is the repeatedly rotating drill bucket,and the second layer is the fallen muck:the interlayer,and the third layer is the uncut solid soil.Since the diameter of the drill bucket and the hole match,drill The rod rotates without resistance,reaction force,friction,and pressure.The bottom plate and the falling slag will slip under the lubrication of water or mud.

　　How to prevent skidding:

　　The slipping phenomenon of the drill bit of the engineering drilling rig can be overcome by first combining the single bucket footage on the display.Although the drilling resistance of the mud layer is small,as the muck inside the drill bucket increases,it will produce resistance to the slag inlet,so the drilling resistance is increased.The sound of the planetary reducer on the power head changes with the resistance,so listen to the sound of the power head It can judge the footage.When the drilling resistance increases,the rotation speed of the power head will also decrease.Therefore,the footage can also be judged by the drill pipe rotation speed.If the geological changes are not large,the drilling time and depth of each bucket should be kept within a certain range,and the depth of the single bucket in the mud layer should be within 0.5 to 0.6 meters.When the bottom of the bucket is reversed and closed,try to drill when there is a load.At this time,the bottom of the bucket has a certain resistance to prevent the bottom of the bucket from reversing together with the drill barrel.