轴向球塞马达(Carron马达)在我国研制已有6—7年时间了,并在我国已形成系列,排量从0.16—51/rev,共五个系列15个型号。研制球塞马达共同遇到的问题之一就是球垫的疲劳寿命问题,许多单位开展了对球垫的专门研究,做了大量的工作。但是这些工作似乎多侧重在球垫材质选择方面,而很少去从改进球垫结构型式来改善球垫的受力状态。我们认为:球垫的结构型式是影响它的疲劳寿命很重要的因素,图1为目前围内外常见的几种球垫型式。 Axial ball-point motor (Carron motor) developed in China has been 6-7 years, and in our country has formed a series of displacement from 0.16-51 / rev, a total of five series of 15 models. One of the common problems encountered in the development of ball-point motors is the fatigue life of ball pads. Many units have conducted special studies on ball pads and have done a great deal of work. However, these efforts seem to be more focused on the choice of cushioning materials, and seldom to improve the ball pad from improving the structure of the ball pad. We think: the structure of the ball pad is a very important factor affecting its fatigue life, Figure 1 is currently surrounded by several common types of ball pad.