在预应力混凝土结构施工中,常用来夹持预应力钢丝进行张拉或锚定的圆锥形夹具中的锥销,如图1所示。在加工圆弧槽时,可使用夹套,见图2。内孔锥度与锥销锥度K值相同。安装时,先用三爪卡盘卡紧夹套,然后用手将锥销推进夹套的锥孔内,用小铜棒轻击,便 In the construction of prestressed concrete structures, the tapered pin in a conical fixture that is used to hold a prestressed steel wire for tensioning or anchoring is commonly used, as shown in FIG. 1 . Jackets can be used when machining circular grooves, see Figure 2. The inner hole taper is the same as the cone pin taper K value. When installing, first use a three-jaw chuck to grip the jacket, then manually push the tapered pin into the tapered hole of the jacket and tap it with a small copper rod.