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一、前言容差圈是一种摩擦联接件,六十年代初开始出现于美国,现已在许多国家生产和广泛应用。它是由金属带材在模具中轧制而成的,具有在外力作用下可以变形的弹性纵向波纹。装配时由过盈配合所产生的载荷,作用在波纹上,使波纹压缩变形并产生径向力和摩擦力,将轴和孔均匀牢固地联接在一起。据统计,目前在美国产生的容差圈约有75％作为机构的联接件(用于皮带轮、链轮、齿轮等传动装置上以传递运动和动力;或用于把手、衬套等件的紧固),代替了原有的键、花键和销联接。其余25％则主要用于轴承装置上,轴承装置应用容差圈后,可使轴或机座孔的尺寸和形位公差显著放宽而不降低其
I. INTRODUCTION The tolerance circle is a type of friction coupling that began appearing in the United States in the early 1960s and is now produced and widely used in many countries. It is made of metal strip rolled in the mold, with elastic longitudinal ripples that can deform under external forces. Assembled by the interference with the load generated by the role in the ripple, the corrugated deformation and radial force and friction, the shaft and the hole uniformly and firmly linked together. According to statistics, about 75% of the tolerance circle currently generated in the United States is used as an attachment to the mechanism (used on transmissions such as pulleys, sprockets, gears and the like to transmit motion and power; or for tight grips such as handles, bushings, etc. Solid), instead of the original key, spline and pin connection. The remaining 25% is mainly used for bearing devices, bearing device tolerance circle, the shaft or seat hole size and shape can be significantly reduced tolerance without reducing its