在轴上安装齿轮、皮带轮等传动机构时,一般都有键。它是轴和孔的最简单的联接固定方法,但它削弱了轴和轮毂的强度和刚度。近年来研制成锥体摩擦固定联接法,它与键联接相比,具有定位精度高、能调整径向或轴向的固定位置、装拆极为方便等优点。该联接件由3种零件组成见图1。图2为作用力原理。由图2看出,内套与外套间是圆锥面接触,当拧紧固 In the shaft gear, pulley and other transmission mechanism, usually have a key. It is the simplest way to fix shafts and holes, but it weakens the strength and rigidity of shafts and hubs. In recent years, developed cone friction fixed connection method, which compared with the key connection, with high positioning accuracy, can adjust the radial or axial fixed position, the assembly and disassembly is very convenient and so on. The coupling consists of three parts shown in Figure 1. Figure 2 is the principle of force. Seen from Figure 2, the inner sleeve and jacket is conical surface contact, when tightened