The results show that with the increase of the cone angles and the coefficients of friction in the certain range, the stress of the anchor ring can gradually decrease.
结果表明：随着锥角和摩擦系数在一定范围内增大，锚环的应力会逐渐减小；
2
The strain clamp comprises an internal thread pull anchor, a sleeve, an inner-cone external thread core sleeve, an outer-cone elastic clamp core, a bush, and the like.