2024年5月14日发(作者：央视曝光360电话手表)

一、 概述

YZRW起重及冶金用涡流制动三相异步电动机（简称涡流制动电动机）是一种新型

的调速电动机，它由YZR系列电动机和感应式涡流制动器组成，应用于各种型式的起

重机械中电力传动和调速。电动机具有较大的过载能力和较高的机械强度，因此，它特

别适用于那些短时或断续工作制频繁起动，制动，有时过负荷及有显著的振动与冲击的

设备。

涡流制动器的电枢与电动机同轴旋转。当励磁绕组通入直流电时，涡流制动器产生

的力矩与电动机的力矩相反，起动制动力的作用，使电动机的转速降低。通过调节涡流

制动器励电流的大小，即可达到调节电动机转速的目的。涡流制动器采用关环或闭环控

制，调速范围可从电动机额定转速调至同步转速的1/5~1/10。

感应式涡流制动器结构简单，使用可靠，维护方便。YZRW涡流制动电动机与其配

套的控制装置所组成的调速系统，调速性能好，设备投资费用少，配套方便，具有调速

平稳，不受负荷正反方向的限制，在任意负载下均能达到电动机的稳定低速运转和低速

安装，就位准确等优点。

电动机的功率等级和安装尺寸符合IEC72推荐标准。

涡流制动电动机绝缘等级为F级和H级别有两种，F级绝缘适用于环境空气温度不

超过40℃的场所，H级绝缘适用于环境空气温度不超过60℃的冶金场所，两者具有相

同的参数。

涡流制动电动机具有良好的密封性，用于一般环境的涡流制动电动机，其电动机外

壳防护等级为IP44，用于冶金环境的涡流制动电动机，其电动机外壳防护等级为IP54。

YZRW Ronge of Crane and metallurgy three-phase induction with current brakd (Called

as eddy current brake electric motor below)is a new adjustable-speed motor, and consists of

YZR range of motor and inducition eddy-current brake. It is used for adjusting the speed of

various types of electric motor has bigger overload capacity and mechanical strength, so it is

especially suitable for those equipments which operate at short time duration or intemittently,

frequently start and brake and sometimes operate at an overload of present significant

vibration and shock.

An armature of the eddy current brake and a motor are mounted in the same shaft and

rotate an exciting winding passes through D.C,the eddy current brake produces

a torque which is opposite to that of the torque acts as a braking force,making the

motor speed slow adjustment of the motor speed can be carried out,by adjusting

the magnitude of an exciting current of the eddy current brake is controlled by open

lop or closed speed adjustment ranges from the rated speed of the motor to 1/5~1/10

synchronous speed.

Induction type eddy current brake is rational in design, reliable in operation, simple in

construction and easy to maintain. The adjust-speed system, consisting of YZRW

eddy-current brake type motor and control matched with is ,is good in adjust-speed

characteristic, less in investment in device, easy to match ,smooth adjust-speed ,not restricted

by clockwise of rounterclockwise rotation direction of load ,and able to achieve smooth and

low-speed operation and to carry out low-speed mounting to hold in place.

Outputs and mounting dimensions are in accordance with recommendation IEC72,while

relationship between output and mounting dimension is in agreement with JEM1202,similar

to DIN42681 and changeable with it.

The motor can be made into both class F and Hinsulations, class F is suitable for place

where ambien air temperature is not in excess of 40℃,and class H, not in excess of 60℃, for

metalurgical place but parameters of both are the same.

The eddy current brake type motor is sealed well. For the motor for use in general

environment, the degree of protection by enclosure is IP44;for the metallurgical

environment, the degree of protection by enclosure is IP54.

涡流制动电动机型号的意义：Specification of the symbol of the eddy current brake motor:

Y Z R W 160 L - 6

6极 6poles

机座长度 Frame length

中心高为160mm center height 160mm

“涡流”制动 “Eddy current brake”

转子为绕线型 Slip-ring rotor

For crane and

起“重”及冶金用

metalurgical application

“异”步电动机 asynchronous motor

1