HJ换向器检测装置

换向器是有刷直流电机的关键部件之一，其质量优劣将直接影响人身安全和电机可靠的运行。

随着我国经济不断发展，对外贸易扩大，电机产品出口的需要，上海南洋电机制造企业，为了符合欧洲有关国家（地区）的检测规定，09年委托我公司研发我国台直流电机换向器检测装置，此装置的研制成功改变了我国换向器人工逐片检测、记录的低工效落后状况，填补了我国换向器检测装置的空白。

1、 换向器检测装置主要由以下10个主要部件组成：

（1）  换向器自动检测装置工作台；

（2）  变频齿轮减速电动机及传动装置；

（3）  脉冲编码器；

（4）  换向器（受检品）及检测工装（轴芯，套筒，填块）；

（5）  测量两电极左右间距调节支架及调节旋柄；

（6）  测量电极上下间距调节支架及调节旋柄；

（7）  电极安装臂；

（8）  电极；

（9）  接触式位移传感器及磁性支座；

（10） 换向器检测装置控制柜，包括声光报警器，显示屏，工控机，耐电压试验仪，控制按钮及指示灯，变频电源等。

2、 现装置检测换向器外形尺寸范围如下：

（1）  换向器外径：ø150mm~ø600mm

（2）  换向器轴孔内径：ø60mm~ø140mm

（3）  换向器片数：50片~300片

（4）  换向器片的宽度：3mm~10mm

（5）  换向器片长度：70mm~400mm

（6）  换向器质量≈300kg

3、主要技术参数

 （1）换向器片间耐电压试验

a、检测电压220~500VAC可调；

b、逐片对相邻2片相互间及其对地的绝缘试验；

c、检测时换向器可按设定的速度能自行旋转进行检测；

d、每片检测时间：按工艺要求设定；

e、每片检测点接触1点，当换向器片的长度较长时可另协议；

f、当检测时，如出现电气短路缺陷时，装置即发出声、光报警，自动记录该片片号、复位、并开启高压，继续检测。

（2）换向器片与片之间位移数值和外表面的径向圆跳动的检测

a、检测换向器超速试验前后冷态时，片与片之间的位移数值和外表面径向圆跳动数值，检测数值为变化的值；

b、接触式位移传感器测量值的分辨率2微米；

c、检测时换向器可按工艺要求设定的速度自行旋转进行检测；。

4、数据处理：

  本检测装置分换向器圆度检测和耐电压试验，并能对轴芯误差进行自动补偿。测量过程中，实时显示圆度误差曲线和每一片数据；显示耐电压试验短路电极片位置。

检测完成后，即生成径向圆跳动数据表和曲线图。

耐电压试验完毕，生成短路电极片位置图及数据。

Commutator is the key part of the brush DC motor.Shanghai BoYa Testing Machinery Co. develop a DC motor commutator testing equipment which is the first one in our country. It changes the low efficiency status which detecting one by one pieces and recorder manually.

1．ThisDC motor commutator testingequipment consists of ten key parts

(1) The table of auto testing equipment;

(2) Variable gear motor and gearing;

(3) Pulse encoder;

(4) TheCommutate(subjects products) and testing parts (shaft, sleeve, fill block);

(5) The adjustable stand and adjustable rotary handle between right and left testing electrodes;

(6) The adjustable stand and adjustable rotary handle between up and down testing electrodes;

(7) The installation arms of the electrodes;

(8) The electrodes;

(9) Contact displacement sensors and magnetic bearing;

(10)Thecontrol cabinet ofcommutator testing equipmentincludes sound and light alarm, display screen, IPC, high voltage tester, control button and lights, frequency power.

2.Dimension of commutator

(1) Out diameter:Φ150mm～Φ600mm (may enlarge the size according the customer)

(2) Inner diameter of the shaft hole:Φ60mm～Φ140mm

(3) Pieces number: 50～300

(4) The width of the piece: 3mm～10mm

(5) The length of the piece: 70mm～400mm

(6) The maximum weight: 300kg

3. Main technical parameter

(1)high voltage testing 

a. Testing voltage: 220-500VAC adjustable

b. Every piece with other two sides pieces to ground isolation testing

c. Commutator rotating speed adjustable

d. every piece testing time: according to request of technologies

e. The sound and light alarm when electrical shortcut take place, the pieces number will be recorded automatically then reset and restart high voltage, continues to test. 

(2)The testing of displacement between pieces andradial circular bound ofouter surface

a. Before and after speeding, test the value of displacement between pieces andthe radial circular bound ofouter surface.

b. The resolution of sensor measurement is 2 micron 

4.Data processing

The function of this equipment includes commutator roundness testing and high voltage testing, and has the ability to compensation the error of shaft. During the testing it will display the roundness error curve and the data of every piece; display the piece position of short circuit. After testing log the data table and curve of radial error, and log the data and curve of short circuit pieces.