Pulse electromagnetic DC motors, in their simplest form, consist of electromagnet with armature andratchet wheel mounted on shaft. The right end of armature carries pawl.
脉冲直流电机的最简单结构形式是由固定在架子上的线圈和棘轮组成,线圈的右端装有棘爪。
3
The block device in the invention can adopt one-way pawl-ratchet type on-off devices and one-way roller overrunning clutches.