Use the method of the frequency governor with machine speed. Bring about a stepless regulation of all constant power range, in the rotating main movement of universal machine tools.

用变频调速和机械变速相结合的方法，在主运动为旋转运动的通用机床中，实现全部恒功率范围内的无级调速。

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James Watt's flyball governor (1769) regulated steam flow to a steam engine to maintain constant engine speed despite a changing load.

1769年瓦特的飞球调速器，它是一种调节蒸汽流的装置，即使荷载变化仍可保持蒸汽机的转速不变。 收藏。

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