渐开断齿轮加工成正齿、斜齿、人字齿轮装配成开式或半开式减速器,广泛用于矿山机械的减速传动,如用于φ3m以下的多种型式的矿井提升机。渐开线齿轮也装配成闭式减速器,多用于传递较小扭矩的减速传动。渐开线齿轮的开式或半开式减速器的各传动轴和轴承不是装配在同一箱体上,各轴承一 The involute gear is machined into spur, helical, and herringbone gears into an open or semi-open reducer, which is widely used in the decelerating transmission of mining machinery such as various types of mine hoists for φ3m or less. Involute gears are also assembled into a closed reducer, which is used to transmit a smaller torque transmission. Involute gear open or semi-open reducer drive shafts and bearings are not assembled in the same box, the bearing a