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28.采用单向离合器和马氏机构的回转运动机构动力源:气动回转角度:0°～90°负荷:轻结构:本机构是将直线运动变换为间歇回转运动的机构。它由齿条、装有单向离合器的小齿轮、带有制动器的针轮和十字轮所构成,所得到的回转运动具有两端减速的运动特性。在气动回路中加入速度控制器,使气缸在工作时慢进,不工作时快退,就能有效地缩短工作循环时间。设计制造要点:(1)与一般的马氏机构相同,必须着重考虑十字形轮、针轮的制动
28. Rotary motion mechanism with one-way clutch and Markov mechanism Power source: Pneumatic rotation angle: 0 ° ~ 90 ° Load: Light structure: This mechanism is a mechanism that converts linear motion into intermittent rotary motion. It is composed of a rack, a pinion with a one-way clutch, a pin wheel with a brake, and a Geneva wheel. The resulting slewing motion has a decelerating kinematic characteristic at both ends. Add a speed controller in the pneumatic circuit, so that the cylinder jog when working, do not work when retired, can effectively shorten the work cycle time. Design and manufacture of points: (1) Markov general institutions and the same, we must focus on cross-shaped wheel, pin wheel brake