自动门
自动门:低速交流力矩电动机的基本概念
发布时间:2014/7/18
自动门讯:
低速交流力矩电动机的基本概念
    三相交流力矩电动机的结构与普通鼠笼型异步电动机不同,它采用电阻率较高的黄铜
等材料作为转子导条及端环,因而按一般交流异步电动机特性知,其等效的转子电阻R2
增大,故可具有恒转矩负载特性,同时其额定转速很低,而启动转矩较大。所以这种大力
矩、低转速、可长时间堵转的特点常被用来调速及低速拖动。力矩电动机允许长期低速运
行甚至堵转但温升可控。在设计时考虑长期低速运转带来的温升,一般采用开启式结构,
故外形扁胖。另外,转子具有轴向通风孔,并外加风扇散热装置。早期较成熟的旋转门拖
动系统大都采用交流力矩电动机。其优点如下:
    1)力矩电动机的机械特性比较软,在正常运行时,基本不用考虑负载转矩的干扰,
遇到阻碍时,电动机转矩立刻下降。
    2)由于其软的机械特性,其拖动旋转门门扇运行时,对于行人的防碰、防夹非常有
好处。其一般门扇夹碰行人的力度要小于变颡调速的电动机拖动系统。
    3)由于其有设计时的电动机最大堵转电流点,故在旋转门门扇被外力阻碍时,电动
机仍然保持合理的堵转温升。
    4)对其进行调压调速方便,因为力矩电动机的最大输出转矩也就是其堵转转矩,也
可认为是电动机的启动转矩。故只有适当调整好电动机端口电压,就可得到最佳的启动响
应和拖动效果。
成都市蜀盾自动门有限责任公司 Copyright @ 2018 www.shenkecs.com , All Rights Reserved
电话:028-8778 1123 手机:180 8682 3671
蜀ICP备10207201号
分享到:

SiteMap  手机用户请点此访问手机版
分分彩计划软件
  • http://www.hn1c.com/howuU/65390920.html
  • http://www.hn1c.com/howuU/28297.html
  • http://www.hn1c.com/howuU/3272974.html
  • http://www.hn1c.com/howuU/16857390.html
  • http://www.hn1c.com/howuU/9608598.html
  • http://www.hn1c.com/howuU/9348424.html
  • http://www.hn1c.com/howuU/71528.html
  • http://www.hn1c.com/howuU/43823572.html
  • http://www.hn1c.com/howuU/0039993.html
  • http://www.hn1c.com/howuU/61627533.html
  • http://www.hn1c.com/howuU/2747.html
  • http://www.hn1c.com/howuU/7756.html
  • http://www.hn1c.com/howuU/731515.html
  • http://www.hn1c.com/howuU/589593.html
  • http://www.hn1c.com/howuU/3914813.html
  • http://www.hn1c.com/howuU/82300.html
  • http://www.hn1c.com/howuU/4544282.html
  • http://www.hn1c.com/howuU/790292.html
  • http://www.hn1c.com/howuU/04837196.html
  • http://www.hn1c.com/howuU/50012794.html
  • http://www.hn1c.com/howuU/3789338.html
  • http://www.hn1c.com/howuU/3871754.html
  • http://www.hn1c.com/howuU/860890.html
  • http://www.hn1c.com/howuU/9367538.html
  • http://www.hn1c.com/howuU/8915.html
  • http://www.hn1c.com/howuU/998364.html
  • http://www.hn1c.com/howuU/36622767.html
  • http://www.hn1c.com/howuU/3599.html
  • http://www.hn1c.com/howuU/823680.html
  • http://www.hn1c.com/howuU/79822.html
  • http://www.hn1c.com/howuU/712773.html
  • http://www.hn1c.com/howuU/7796174.html
  • http://www.hn1c.com/howuU/786716.html
  • http://www.hn1c.com/howuU/7103088.html
  • http://www.hn1c.com/howuU/22813902.html
  • http://www.hn1c.com/howuU/0663.html
  • http://www.hn1c.com/howuU/06163305.html
  • http://www.hn1c.com/howuU/98895.html
  • http://www.hn1c.com/howuU/2282575.html
  • http://www.hn1c.com/howuU/5141720.html
  • http://www.hn1c.com/howuU/851229.html
  • http://www.hn1c.com/howuU/37026848.html
  • http://www.hn1c.com/howuU/8074.html
  • http://www.hn1c.com/howuU/16796.html
  • http://www.hn1c.com/howuU/06253.html
  • http://www.hn1c.com/howuU/91057.html
  • http://www.hn1c.com/howuU/5091.html
  • http://www.hn1c.com/howuU/45299.html
  • http://www.hn1c.com/howuU/15869750.html
  • http://www.hn1c.com/howuU/25490.html
  • http://www.hn1c.com/howuU/80316.html
  • http://www.hn1c.com/howuU/70235.html
  • http://www.hn1c.com/howuU/06328.html
  • http://www.hn1c.com/howuU/96827745.html
  • http://www.hn1c.com/howuU/43947.html
  • http://www.hn1c.com/howuU/8274.html
  • http://www.hn1c.com/howuU/3858.html
  • http://www.hn1c.com/howuU/56773614.html
  • http://www.hn1c.com/howuU/5512.html
  • http://www.hn1c.com/howuU/6592.html
  • http://www.hn1c.com/howuU/188322.html
  • http://www.hn1c.com/howuU/1904.html
  • http://www.hn1c.com/howuU/7206063.html
  • http://www.hn1c.com/howuU/54498.html
  • http://www.hn1c.com/howuU/6992894.html
  • http://www.hn1c.com/howuU/1471834.html
  • http://www.hn1c.com/howuU/49427129.html
  • http://www.hn1c.com/howuU/28054084.html
  • http://www.hn1c.com/howuU/3074.html
  • http://www.hn1c.com/howuU/06753.html
  • http://www.hn1c.com/howuU/6785.html
  • http://www.hn1c.com/howuU/957837.html
  • http://www.hn1c.com/howuU/4409.html
  • http://www.hn1c.com/howuU/60789016.html
  • http://www.hn1c.com/howuU/3183529.html
  • http://www.hn1c.com/howuU/9171659.html
  • http://www.hn1c.com/howuU/0001825.html
  • http://www.hn1c.com/howuU/6812.html
  • http://www.hn1c.com/howuU/863854.html
  • http://www.hn1c.com/akaAQ/35631613.html
  • http://www.hn1c.com/akaAQ/850499.html
  • http://www.hn1c.com/akaAQ/3316935.html
  • http://www.hn1c.com/akaAQ/573318.html
  • http://www.hn1c.com/akaAQ/3128759.html
  • http://www.hn1c.com/akaAQ/3804.html
  • http://www.hn1c.com/akaAQ/8074.html
  • http://www.hn1c.com/akaAQ/0778487.html
  • http://www.hn1c.com/akaAQ/45851829.html
  • http://www.hn1c.com/akaAQ/1214156.html
  • http://www.hn1c.com/akaAQ/92696.html
  • http://www.hn1c.com/akaAQ/09293.html
  • http://www.hn1c.com/akaAQ/69185212.html
  • http://www.hn1c.com/akaAQ/764352.html
  • http://www.hn1c.com/akaAQ/395643.html
  • http://www.hn1c.com/akaAQ/9464.html
  • http://www.hn1c.com/akaAQ/45215643.html
  • http://www.hn1c.com/akaAQ/61795291.html
  • http://www.hn1c.com/akaAQ/82865.html
  • http://www.hn1c.com/akaAQ/7341.html
  • http://www.hn1c.com/akaAQ/125908.html