泵站用行星齿轮变速传动装置的设计

基于泵站的更新改造,针对目前国内泵站采用直联传动的现状,结合泵站变速调节的优点,提出了采用行星齿轮变速的泵站传动装置.该传动装置由行星齿轮变速和齿轮减速两部分组成,行星齿轮变速由一排2X-H型行星齿轮传动及控制变速器运动输入的两个离合器和两个制动器组成.通过分析行星齿轮的运动得到了变速比.通过对行星齿轮两种配齿方案的计算和分析,确定了用于泵站的行星齿轮传动变速方案：选用转速为1 500 r/min的电动机,行星齿轮变速的两种传动比为3和1.5.经过配齿设计,得出泵站所需要的输出转速为250 r/min和125 r/min.采用行星齿轮变速传动也可以满足南水北调工程泵站流量和扬程变化大的特点.

Design on planetary gear transmission device for pumping stations

In order to renew the pumping stations,in which the pumps are directly linked with motor,a new type of transmission device was proposed due to its advantage of variable speed.This new device consists of a planetary gear transmission and a gear reduction.The planetary gear transmission is composed of a 2X-H planet bar,two clutches and two brakes which control the power input.Based on the analysis of movement of planetary gears,the transmission ratio for each step was conducted.The final planetary gear drive transmission design was determined by the calculation and analysis of two kinds of planet tooth number matching.As a result,a motor with 1 500 r/min was selected and two transmission ratios of 3 and 1.5 were decided.Through the right matching of planet tooth numbers,the speed requirement of 250 r/min and 125 r/min for the pump station was achieved.This design can also meet the need of frequent changes of pump in flow and head in the big project of ＂South to North Water Transfer＂.