The utility model discloses a drill antifriction and anti sticking grinding tools, including spindle, retaining ring and sleeve on the main shaft and can rotate around the antifriction sleeve, while the main shaft is also provided to prevent the reduction of friction limiting piece sleeve axial sliding, the friction between the reduction set with the gear ring, stopper and spindle contact surface also are equipped with antifriction protective coating. The utility model has the advantages of simple structure, convenient use, but also in the spindle is set on the antifriction sleeve, through direct contact with the wall friction sleeve, the spindle and the wall contact, thereby protecting the spindle and the drill is not so suitable for the promotion of the use of wall wear.
【技术实现步骤摘要】
【技术保护点】
1.钻具减摩防粘减磨工具,其特征在于:包括具有挡环(2)的主轴(1)、以及套在该主轴(1)上并能绕其旋转的减摩套(3),同时在该主轴(1)上还设有防止该减摩套(3)轴向滑动的限位件(4),所述减摩套(3)与档环(2)、限位件(4)以及主轴(1)的接触面之间还均设有减摩耐磨防护涂层(5)。
【技术特征摘要】
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