直流电机是电机的主要类型之一。一台直流电机即可作为发电机使用，也可作为电动机使用，用作直流电机可以得到直流电源，而作为直流动机，由于其具有良好的调速性能，在许多调速性能要求较高的场合，仍得到广泛使用。
一、直流电机的用途
1、作电源用-直流电机，将机械能转化为直流电能;
2、作动力用-直流电机，将直流电能转化为机械能;
3、做励磁机用，一般小于10万kW即100MW的单机同步发电机要用直流发电机作为励磁机
4、信号传递-直流测速发电机，将机械信号转换为电信号;
5、信号传递-直流伺服电动机，将控制信号转换为机械信号。
二、直流电机的优缺点
1、直流电机的电势波形较好，对电磁干扰的影响小。
2、直流电机的调速范围宽广，调速特性平滑。
3、直流电机过载能力较强，热动和制动转矩较大。
4、由于存在换向器，其制造复杂，价格较高。
新闻:滨海新区多摩川编码器OIH48-2500-P4-L6-5V原厂
直流电动机的构造
分为两部分：定子与转子。记住定子与转子都是由那几部分构成的，注意：不要把换向极与换向器弄混淆了，记住他们两个的作用。
定子包括：主磁极，机座，换向极，电刷装置等。
转子包括：电枢铁芯，电枢绕组，换向器，轴和风扇等。
直流电动机四种励磁方式各自的特点
直流电动机的性能与它的励磁方式密切相关，通常直流电动机的励磁方式有4种：直流他励电动机、直流并励电动机、直流串励电动机和直流复励电动机。掌握4种方式各自的特点：
新闻:滨海新区多摩川编码器OIH48-2500-P4-L6-5V原厂
中压阀公称压力PN2.5~6.4MPa的阀门。高压阀公称压力PN1.~8.MPa的阀门。超高压阀公称压力PN大于1MPa的阀门。按介质温度分类：高温阀-t大于45C的阀门。中温阀-12C小于t小于45C的阀门。常温阀-4C小于t小于12C的阀门。低温阀-1C小于t小于-4C的阀门。超低温阀t小于-1C的阀门。按阀体材料分类：非金属材料阀门如陶瓷阀门、玻璃钢阀门、塑料阀门。
新闻:滨海新区多摩川编码器OIH48-2500-P4-L6-5V原厂
CH200-3-S-G1-LD-H9CH200-5-S-G1-LD-H9CH200-10-S-G1-LD-H9CH200-15-S-G1-LD-H9CH200-20-S-G1-LD-H9CH200-25-S-G1-LD-H9CH200-30-S-G1-LD-H9CH200-40-S-G1-LD-H9CH200-45-S-G1-LD-H9CH200-50-S-G1-LD-H9CH200-60-S-G1-LD-H9CH200-70-S-G1-LD-H9CH200-80-S-G1-LD-H9CH200-90-S-G1-LD-H9CH200-100-S-G1-LD-H9CH200-120-S-G1-LD-H9CH200-140-S-G1-LD-H9CH200-160-S-G1-LD-H9CH200-180-S-G1-LD-H9CH200-200-S-G1-LD-H9CH400-3-S-G1-LD-H9CH400-5-S-G1-LD-H9CH400-10-S-G1-LD-H9CH400-15-S-G1-LD-H9CH400-20-S-G1-LD-H9CH400-25-S-G1-LD-H9CH400-30-S-G1-LD-H9CH400-40-S-G1-LD-H9CH400-45-S-G1-LD-H9CH400-50-S-G1-LD-H9CH400-60-S-G1-LD-H9CH400-70-S-G1-LD-H9CH400-80-S-G1-LD-H9CH400-90-S-G1-LD-H9CH400-100-S-G1-LD-H9CH400-120-S-G1-LD-H9CH400-140-S-G1-LD-H9CH400-160-S-G1-LD-H9CH400-180-S-G1-LD-H9CH400-200-S-G1-LD-H9CH750-3-S-G1-LD-H9CH750-5-S-G1-LD-H9CH750-10-S-G1-LD-H9CH750-15-S-G1-LD-H9CH750-20-S-G1-LD-H9CH750-25-S-G1-LD-H9CH750-30-S-G1-LD-H9CH750-40-S-G1-LD-H9CH750-45-S-G1-LD-H9CH750-50-S-G1-LD-H9CH750-60-S-G1-LD-H9CH750-70-S-G1-LD-H9CH750-80-S-G1-LD-H9CH750-90-S-G1-LD-H9CH750-100-S-G1-LD-H9CH750-120-S-G1-LD-H9CH750-140-S-G1-LD-H9CH750-160-S-G1-LD-H9CH750-180-S-G1-LD-H9CH750-200-S-G1-LD-H9CH1500-3-S-G1-LD-H9CH1500-5-S-G1-LD-H9CH1500-10-S-G1-LD-H9CH1500-15-S-G1-LD-H9CH1500-20-S-G1-LD-H9CH1500-25-S-G1-LD-H9CH1500-30-S-G1-LD-H9CH1500-40-S-G1-LD-H9CH1500-45-S-G1-LD-H9CH1500-50-S-G1-LD-H9CH1500-60-S-G1-LD-H9CH1500-70-S-G1-LD-H9CH1500-80-S-G1-LD-H9CH1500-90-S-G1-LD-H9CH1500-100-S-G1-LD-H9CH1500-120-S-G1-LD-H9CH1500-140-S-G1-LD-H9CH1500-160-S-G1-LD-H9CH1500-180-S-G1-LD-H9CH1500-200-S-G1-LD-H9
人为什么钟爱品，却不注重高端家具呢?这是在几年前，不少外国品牌产生的疑问。据悉，我国人口超过13亿，有大约75万人活跃于品消费上，更多的人愿意花大价钱买高端手表、精美配饰、箱包，之前却很少有人愿意把金钱花费在家具上。而如今与品消费一样，国内高端家具市场正在缓慢的发展中。家具市场需求增加当物质生活水平不断提高，人们对于家具装潢也越来越重视了，越来越多的人试图通过对家居的装修来彰显自己的生活态度以及格调。
新闻:滨海新区多摩川编码器OIH48-2500-P4-L6-5V原厂CH400-3-S-B-G1-LD-H3CH400-5-S-B-G1-LD-H3CH400-10-S-B-G1-LD-H3CH400-15-S-B-G1-LD-H3CH400-20-S-B-G1-LD-H3CH400-25-S-B-G1-LD-H3CH400-30-S-B-G1-LD-H3CH400-40-S-B-G1-LD-H3CH400-45-S-B-G1-LD-H3CH400-50-S-B-G1-LD-H3CH400-60-S-B-G1-LD-H3CH400-70-S-B-G1-LD-H3CH400-80-S-B-G1-LD-H3CH400-90-S-B-G1-LD-H3CH400-100-S-B-G1-LD-H3CH400-120-S-B-G1-LD-H3CH400-140-S-B-G1-LD-H3CH400-160-S-B-G1-LD-H3CH400-180-S-B-G1-LD-H3CH400-200-S-B-G1-LD-H3CH750-3-S-B-G1-LD-H3CH750-5-S-B-G1-LD-H3CH750-10-S-B-G1-LD-H3CH750-15-S-B-G1-LD-H3CH750-20-S-B-G1-LD-H3CH750-25-S-B-G1-LD-H3CH750-30-S-B-G1-LD-H3CH750-40-S-B-G1-LD-H3CH750-45-S-B-G1-LD-H3CH750-50-S-B-G1-LD-H3CH750-60-S-B-G1-LD-H3CH750-70-S-B-G1-LD-H3CH750-80-S-B-G1-LD-H3CH750-90-S-B-G1-LD-H3CH750-100-S-B-G1-LD-H3CH750-120-S-B-G1-LD-H3CH750-140-S-B-G1-LD-H3CH750-160-S-B-G1-LD-H3CH750-180-S-B-G1-LD-H3CH750-200-S-B-G1-LD-H3CH1500-3-S-B-G1-LD-H3CH1500-5-S-B-G1-LD-H3CH1500-10-S-B-G1-LD-H3CH1500-15-S-B-G1-LD-H3CH1500-20-S-B-G1-LD-H3CH1500-25-S-B-G1-LD-H3CH1500-30-S-B-G1-LD-H3CH1500-40-S-B-G1-LD-H3CH1500-45-S-B-G1-LD-H3CH1500-50-S-B-G1-LD-H3CH1500-60-S-B-G1-LD-H3CH1500-70-S-B-G1-LD-H3CH1500-80-S-B-G1-LD-H3CH1500-90-S-B-G1-LD-H3CH1500-100-S-B-G1-LD-H3CH1500-120-S-B-G1-LD-H3CH1500-140-S-B-G1-LD-H3CH1500-160-S-B-G1-LD-H3CH1500-180-S-B-G1-LD-H3CH1500-200-S-B-G1-LD-H3CH2200-3-S-B-G1-LD-H3CH2200-5-S-B-G1-LD-H3CH2200-10-S-B-G1-LD-H3CH2200-15-S-B-G1-LD-H3CH2200-20-S-B-G1-LD-H3CH2200-25-S-B-G1-LD-H3CH2200-30-S-B-G1-LD-H3CH2200-40-S-B-G1-LD-H3CH2200-45-S-B-G1-LD-H3CH2200-50-S-B-G1-LD-H3CH2200-60-S-B-G1-LD-H3CH2200-70-S-B-G1-LD-H3CH2200-80-S-B-G1-LD-H3CH2200-90-S-B-G1-LD-H3CH2200-100-S-B-G1-LD-H3CH2200-120-S-B-G1-LD-H3CH2200-140-S-B-G1-LD-H3CH2200-160-S-B-G1-LD-H3CH2200-180-S-B-G1-LD-H3CH2200-200-S-B-G1-LD-H3
