长期以来,传动装置中轴和各种轮毂(如齿轮、带轮、链轮,凸轮以及各种摇杆等)的联结方式普遍采用传统的键或花键联结。此种联结结构的主要缺点是:槽削弱了轴和轮毂的强度,安装、拆卸、维修时工艺性较差。国外近年来出现了一种新型的联结轴套,可以取代某些场合的传统联结,而且已作为SKF等滚动轴承厂的标准系列产品投放市场。现简介如下: 一、轴套联结的基本原理 1.锥形环套在两个相配的锥形环套零件(图1a)的两侧施加一对轴向推力,根据力学中斜楔作用原理,内环和外环沿直径方向将产生收缩和膨胀。这一基本原理已在许多机械摩擦联结和某些轴承(如3182100)的径向预紧结构中得到了应用。但这种锥套在结构和使用方面还存在着一些问题 For a long time, the traditional way of connecting the center shaft of the transmission and various wheels (such as gears, pulleys, sprockets, cams and various rockers, etc.) is conventional. The main disadvantage of such a joint structure is that the groove weakens the strength of the shaft and the hub, and has poor manufacturability during installation, disassembly and maintenance. In recent years, a new type of coupling sleeve has emerged in foreign countries, which can replace the traditional connection in some occasions and has been put on the market as a standard series of rolling bearings factory such as SKF. The brief introduction is as follows: First, the basic principle of the shaft coupling 1. Conical ring sets a pair of axial thrust on both sides of the conical ring sets of parts (Figure 1a), according to the principle of wedges in mechanics, Diametrically, the inner and outer rings will contract and expand. This basic principle has been applied in many mechanical frictional couplings and in the radial pretensioning of certain bearings such as the 3182100. However, there are still some problems in the structure and use of this taper sleeve