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YEJA series AC electromagnetic brake three phase asynchronous motor
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1000

YEJA series AC electromagnetic brake three phase asynchronous motor

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Number of views:
1000
Product serial number
YJ-019
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Product description
Parameters
Technical parameter
Shape and installation dimensions
Wiring method
Clearance and Torque Regulation
Common failures and troubleshooting
Sample and video download

Product Brief

YEJA series AC electromagnetic brake three-phase asynchronous motor is composed of two parts: standard Y2 series three-phase asynchronous motor and AZML series three-phase AC electromagnetic brake. The spindle of the back end of the motor is connected with the friction disc of the brake by spline. The electromagnet is fixed on the back end cover of the motor, which belongs to the power-off braking type.This series of products have obtained ISO 9001 system certification and CCC product certification certification.

 

Scope of use

YEJA three-phase AC brake motor is suitable for environments without flammable, explosive and corrosive gases. It is especially suitable for all kinds of machines requiring fast braking, accurate positioning and skidding prevention, such as lifts, transport machinery, printing machinery, packaging machinery, textile machinery, ceramic machinery, plating production line and transmission machinery matched with reducers.

 

Working principle

When electrified, the electromagnet produces a strong electromagnetic force to suck the armature plate to compress the brake spring, so that the armature plate can be separated from the pressure on the brake disc, and the motor can rotate flexibly. When power loss occurs, the armature plate is pressurized by the brake spring pressure to tighten the brake disc and generate a strong friction braking moment, so that the rotating motor brakes rapidly and achieves accurate positioning.

 

Product characteristics

1. The protection level of this series of products reaches IP55.

2. The cooling mode of motor is IC411 (self-fan cooling).

3. The AC brake has been carefully designed. In addition to the charged part sealed in the epoxy resin shell, the brake is installed in a fully sealed structural component when it is assembled with the motor, which can effectively prevent cotton yarn, paper scraps, dust, grease, iron scraps, powder and other impurities from entering the brake, thus prolonging its service life.

4. AC brake has the advantages of fast starting response, short braking time, safe and reliable braking moment adjustable, etc.

5. With flexible manual release device, self-locking or temporary wrench can be freely chosen;

6. AC brake and motor use the same power supply voltage, without AC-DC conversion rectifier, avoid AC-DC conversion, easy to use;

7. Motor insulation grade is B and F, brake insulation grade is F.

8. Use two-position junction boxes, i.e. separate junction boards for motors and brakes respectively.

9. Installation size and power level of the motor fully conform to JB/T6456 industry standard and IEC-72 international standard.

10, 63-71 are aluminium-shell motors, 80-160 are aluminium-shell or cast-iron-shell motors, and 180 are cast-iron-shell motors.

 

Conditions of use

1. Elevation not exceeding 1000m;

2. When the monthly mean minimum temperature is not higher than 25 C, the wettest monthly average maximum relative humidity is 95%.

3. The highest ambient temperature does not exceed 40 C and the lowest is -15 C.

4. Working mode S1 (continuous working system);

5. The rated voltage is 380V 50Hz. Different voltage and frequency can be designed and manufactured separately.

 

We could not find any corresponding parameters, please add them to the properties table

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B3型机座带底脚,端盖无凸缘的电动机

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B5型机座不带底脚,端盖上有凸缘(带通孔)的电动机     R为凸缘配合面至轴伸肩的距离

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B14型机座不带底脚,端盖上有凸缘(小法兰带螺孔)的电动机   R为凸缘配合面至轴伸肩的距离 

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1、电机与制动器接法相同,为Y接法;
2、快制动接法如下:

 

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1、本系列各规格电机中所配制动器的气隙值(δ)

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2、气隙的检查

如图一所示,衔铁2与电磁铁6之间活动的距离称为气隙(δ)。正常工作气隙(δ)不超过规定的气隙值。电机出厂时都调整在初始工作气隙范围内,运行一段时间后,由于摩擦片磨损使气隙值加大,会影响制动器正常的吸合和制动效果,所以在电机使用一段时间后,按大气隙值选择塞尺尺寸,对气隙(δ)的大小进行检查。检查时,可直接将选好尺寸的塞尺塞进气隙(δ)中,如塞进,说明气隙(δ)已过大,要进行调整。

 

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3、气隙的调整

如图一所示,准备一组厚薄塞尺,选择厚度按上表初始工作气隙值,将螺母5松开,将塞尺放进被松开的螺杆边缘的气隙(δ),慢慢旋进锁紧螺母7,压紧塞尺,然后将螺母5向外旋紧,拔出塞尺。用同样方法再调整好第二支螺杆和第三支螺杆处气隙,调好后重新再把螺母5和锁紧螺母7旋紧,并要定时检查螺母是否有松动。YEJA132以上电机的制动器螺杆有6组,可按上述方法,按120°等分先调三组,再调另三组。如果没正规塞尺,可用相似厚薄的铁皮等代用,螺母6每旋60°(六角螺母六等分角)约前进0.15mm左右。气隙调节三点要均匀,否则会影响制动器吸合与制动,严重时会烧坏线圈。

4、力矩的调节

在正常的工作气隙时,制动力矩未达到额定制动力矩时,可将三个保险螺母4(机座号132以上为六个)均匀向前旋进约压缩制动弹簧3,可加大制动力矩,但不能太多,只要达到铭牌上的额定制动力矩即可,由于弹簧压力太大会造成吸合困难,或发出难听的吱吱电磁声,严重的会烧坏线圈。

序号 故障现象  检查部位和方法 解决措施
1 制动器不吸,
有严重的振动
和吱吱的尖叫声
(1)如图一所示,查螺母5是否松动;
(2)测量气隙(δ)是否超过工作气隙值;
(3)用万用表测三相绕组的电阻,是否基本平均,有否断线;
(4)用万用表交流电压500V档检查交流三相电源进线是否有缺相;
(5)制动力矩超过额定值过多;
(6)检查吸铁表面是否有异物卡在上面或有干油垢积在上面造成平面不平;
(7)吸铁表面经长期使用后造成高低不平;
(1)旋紧螺母5;
(2)如气隙(δ)过大,则调整到初始工作气隙范围内;
(3)有断线修复或更换磁轭;
(4)发现问题给予排除;
(5)调节制动弹簧压缩长度控制制动力矩;
(6)清除异物,油垢;
(7)用车床或平面磨床修平;
(8)拆开后,清除锈斑,重新组装,即能正常工作。
2 刹车不灵刹不牢 (1)摩擦片磨损,工作气隙变大,力矩下降;
(2)摩擦片损坏;
(3)负载惯量太大,超过制动力矩;
(1)、重新调整气隙(δ);
(2)、更换新的摩擦盘;
(3)、重新选电机型号。
3 电机发热 (1)负载过重,超过铭牌规定电流;
(2)轴流风机工作是否良好;
(3)电机进风处是否有棉絮、纱丝和纸屑等杂物堵死冷却风源;
(4)检查电源和电机有否缺相。
(1)把负荷降小,控制在额定负载内,或重新考虑电机选型;
(2)如不能工作,则更换风机;
(3) 清除电机进风处和风叶上棉絮等杂物;
(4)给予修复。

文件名 大小 上传日期 详细
YPEJA系列变频调速电磁制动三相异步电动机 807KB 2021/3/10 点击下载
操作视频 100M 2021/3/10 点击下载

 

 

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