The speed shifting mechanism is a two-stage or more than two-stage speed shifting mechanism formed by that at least two pairs of straight gears are made a transmission fit.
所述变速机构是由至少两对直齿轮传动配合构成的两级或两级以上的变速机构。
Introduces the calculation methods of 13 stage speed diagrams of the main well hoister of mine, and provides the theoretical basis for the calculation of speed diagram of hoister.
给出了矿井提升机13阶段速度图的计算方法，为矿井提升机速度图的计算提供了理论依据。
Introduces the calculation methods of 13 stage speed diagrams of the main well hoister of mine, and provides the theoretical basis for the calculation of speed diagram of hoister.
给出了矿井提升机13阶段速度图的计算方法，为矿井提升机速度图的计算提供了理论依据。
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