大家知道,钻井过程中三牙轮钻头的工作指标首先取决于牙轮轴承的寿命,而轴承寿命又与钻压和轴承强度有关。轴承中一个元件的损坏,会导致整个轴承和钻头的损坏。 牙轮腔内尺寸有限的轴承,在泥浆能自由进入轴承的情况下,不能保证钻头的工作寿命。如能确保轴承在油类介质中工作,其寿命便可显著提高。 As we all know, the working index of the tricone bit during drilling depends firstly on the service life of the roller cone bearing, and the bearing life is related to the weight on bit and the bearing strength. Damage to one element in the bearing can result in damage to the entire bearing and bit. Tooth cavity size limited bearing, the mud can freely enter the bearing case, can not guarantee the working life of the drill. If you can ensure the bearing in the oil media work, its life can be significantly improved.