help me.many thanks.

发布网友发布时间：2022-04-24 11:31

共3个回答

热心网友时间：2022-05-07 06:13

为了电力能量是suppplied 对一个转动的设备譬如电枢, 某一类滑刷子联络必须被建立。滑刷子联络是或者滑动圆环或* 圆环。滑动圆环被修建绝缘的材料圆筒与二个不同坚实金属圆环胶合对它。滑刷子由碳和石墨制成乘坐在金属圆环和允许电力能量的应用或抽出从圆环在自转时。溢出圆环换向器与silp 圆环是相似除了一个坚实金属圆环被切开成二或比较分开的sections.As 一个一般规则, 滑动圆环被使用在交流马达和发电器里, 虽然直流机器使用*圆环commrtating 的设备The 空白或*在这台换向器被保留于极小值减少发火花刷子。有几其它零件使用在旋转电机的建筑。在这些之中是电动子辕子, 当转动在一套之间轴承。轴承也许是或者这个球, 路辗, 或袖子type.Bearing 封印, 由毛毡材料经常制成, 被使用保留润滑剂在轴承附近并且保留土out.A rotorcore 通常被修建被制成薄板的钢提供一个低勉强磁性道路在机器的领域杆之间和减少漩涡 currtens 。内部和外部电子连接提供手段提供或提取电力能量。

热心网友时间：2022-05-07 07:31

热心网友时间：2022-05-07 09:06

for electrical energy to be suppplied to a rotating device such as the armature, some sort of sliding brush contact must be established. Sliding brush contacts are either slip rings or split rings. Slip rings are constructed of a cylinder of insulating material with two separate solid metal rings glued to it. Sliding brushes made of carbon and graphite ride on the metal rings and permit application or extraction of electrical energy from the rings ring rotation. The spilt-ring commutator is similar to the silp ring except a solid metal ring is cut into two or more separate sections.As a general rule, slip rings are used in AC motors and generators, while DC machines employ the split-ring commrtating device .The gap or split in the commutator is kept at a minimum to rece sparking of the brushes.
There are several other parts used in the construction of rotating machines. Among these are the rotor shaft,while rotates between a set of bearings. Bearings may be either the ball, roller, or sleeve type.Bearing seal,often made of felt material,are used to keep lubricant around the bearing and keep dirt out.A rotorcore is usually constructed of laminated steel to provide a low-reluctance magnetic path between the field poles of a machine and to rece eddy currtens. Internal and external electrical connections provide a means of delivering or extracting