单绕组双速异步电动机设计 二

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单绕组双速三相异步电动机
 摘要：变极多速三相异步电动机为有级调速电动机，它是利用改变定子绕组的接法已改变电动机的极数，从而使电动机用一套或二套绕组来获得两种或两种以上的转速。根据感应电动机的转速特性可知，它的调速方式有三大类：频率调节、磁极对数调节和转差率调节。本设计是单绕组双速异步电动机，极数为4/6，非倍级比调速。本设计的变极绕组为反向变极绕组。
 变极多速三相异步电动机由于具有可随负载性质的要求而分级地变化转速，从而达到功率的合理匹配和简化变速系统的特点。电动机适用于各式万能、组合、专用切削机床及矿山冶金、纺织、化工、农机等部门需要逐级调速的各种传动机构。
 关键词：有级调速、定子绕组、分级

Single winding pairs of speed three different step motor
 ABSTRACT：Become many speed three different step motor for have grade transfer speed motor , it is it change stator winding connect law change number very much of motor already to utilize extremely, make motor is it get two or two more than rotational speed to come with one or two winding. Whether can know according to rotational speed characteristic , reaction of motor to transfer speed way have 3 big classes it. Frequency is regulated , magnetic pole logarithm is regulated and transfers to the difference rate regulating . It designs to be single winding pairs of speed asynchronous motor originally, it counts to be 4/6 very much, than speed of transfering each. Design originally become winding very much for become winding very much backward.
 Become many speed three different step motor extremely because of is it can afford to grade with demand for load nature to have, reach to match and is it change speed the systematic characteristic to simplify rationally power. Motor suitable for various types of omnipotent make up , not special-purpose to cut lathe and mine metallurgy , textile , chemical industry , agricultural machinery ,etc. department is it transfer various kinds of transmission organization of speed step by step to needing.
 KEYWORDS：There is grade that adjusts speed，Stator winding，Grading
目    录

摘  要i
Abstract·ii
第1章    概述1
 1.1  电机设计的任务和步骤·1
 1.2  电机制造的发展趋势·1
 1.3  促使电机制造工业发展的主要措施·2
 1.4  调速设计·2
第2章    单绕组多速异步电动机的变极原理4
 2.1  变极原理·4
 2.2  设计变极绕组的技术要求·4
第3章    单绕组双速异步电动机设计5
 3.1  主要尺寸和电磁负荷·5
 3.2  定子冲片设计·6
 3.2.1 定子冲片内径的确定·6
 3.2.2 气隙长度的确定·6
 3.2.3 定子槽数的选择7
 3.2.4 定子冲片设计图8
 3.2.5 槽形尺寸的确定8
 3.3  转子冲片设计·9
 3.3.1 转子槽数的选择—槽配合的讨论9
 3.3.2 转子冲片设计图·10
 3.3.3 转子槽形尺寸的确定10
 3.4  定子主绕组的初步设计11
 3.4.1 基波绕组系数·11
 3.4.2 每相串联导体数，每槽导体数的计算·12
 3.4.3 槽满率14
 3.4.4 定子绕组型式和节距的选择·14
 3.5  转子笼型绕组的初步设计15
 3.5.1 笼型绕组电阻的计簿15
 3.5.2对电动机性能的影响以及端环的设计原则·16
 3.5.3 斜槽的选择·17
第4章    单绕组双速异步电动机程序计算（6极）19
 4.1  感应电动机的主要性能指标19
 4.2  感应电动机的额定数据与标么值19
 4.3  额定数据和主要尺寸19
 4.4  磁路计算23
 4.5  参数计算26
 4.6  工作性能计算31
 4.7  起动性能计算33
第5章    单绕组双速异步电动机程序计算（4极）37
 5.1  感应电动机的主要性能指标37
 5.2  感应电动机的额定数据与标么值37
 5.3  额定数据和主要尺寸37
 5.4  磁路计算41
 5.5  参数计算45
 5.6  工作性能计算50
 5.7  起动性能计算52
第6章    设计心得·55
第7章    致谢·56
参考文献·57
附录
 定子冲片图·58
 转子冲片图·59
 接线图·60
 6极绕组展开图61
 4极绕组展开图62

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