Device that reduces to rub and hinder creeps into based on shape memory alloy spring

The utility model discloses a device that reduces to rub and hinder creeps into based on shape memory alloy spring, it includes spline dabber, spline housing, body, reset spring, mud pulse generator,shape memory alloy spring and mud turbogenerator, this is internal to have the cavity, reset spring, mud pulse generator, shape memory alloy spring and mud turbogenerator and link bit in in the cavity. The utility model discloses a shape memory alloy spring's restoring force and reset spring's elasticity drive the drilling tool and produce reciprocating motion in the wells, thereby make static friction between the drilling tool and the wall of a well become the dynamic friction frictional resistance between the drilling tool and the wall of a well that reduces to slide when creeping into. 本实用新型公开了种基于形状记忆合金弹簧的钻进减小摩阻的装置，其包括花键芯轴、花键套、本体、复位弹簧、泥浆脉冲发生器、形状记忆合金弹簧以及泥浆涡轮发电机，所述本体内具有腔体，所述复位弹簧、泥浆脉冲发生器、形状记忆合金弹簧以及泥浆涡轮发电机及其连接位于所述腔体内。本实用新型通过形状记忆合金弹簧的回复力和复位弹簧的弹力带动钻具在井内产往复运动，使钻具与井壁之间的静摩擦变为动摩擦从而减小滑动钻进时钻具与井壁间的摩擦阻力。