恒力YE2、YE3、YX3系列电机产品维护说明书

2016年11月08日

三相异步电动机随机文件

Documents Provided With 3-Phase Induction Motor

 

 

 

 

 

 

 

 

 

▲ Main troubles and remedy

Trouble  

Reason

  Remedy

Fails to start with noise or vibration

One phase line open circuited 

Find out the broken points and connect well

Rotates with noise and overheated

Winding short circuited

Repair the winding

Low speed after starting

Beginning and end terminals of phase winding are misconnected

Find out the beginning and end terminals of every phase and connect them  correctly

Applied voltage is too low

 Check main voltage    

Insulation resistance reduces

Winding is dirty or damped

Clean motor anddry the winding

The temperature rise of the winding is too high      

Motor overloaded    

Reduce the load

and check other parts

Bearing overheated       

Motor is not concentric with driven machine, or belt tension is too high

Check concentricity

Grease in bearing is too much or little

Check the storage of grease

Bearing is damaged

Replace bearing

Bearing noise

Bearing is damaged

Replace bearing

Bearing is dirty or with little grease

Refresh grease

Great vibration

The stiffness of foundation is too low

Reinstall

Motor’s shaft is not concentric with driven machine

Check the concentricity 

 

 

 

使用维护说明书

概述

本系列电动机为一般用途三相笼型转子电动机,适用于驱动各种机械设备,如机床、泵、风机、压缩机及其它辅助设备等。

 

安装前的准备

1.详细核对铭牌上所载的各项数据,如额定功率、电压、频率、转速等是否与实际需要相符。

2.仔细检查各零部件的装配是否良好,紧固件是否松动,并用手转动转子,检查有无相擦现象。

3.用500伏兆欧表测量各绕组之间及绕组对地的绝缘电阻,使用过程中测得的绝缘电阻至少不低于1MΩ,否则应进行干燥处理。

 

安装

1.立式电动机在使用中不允许有任何的轴向负荷。

2.安装时,应保证电动机有良好的通风条件,风罩近风端留的空间不得小于下的规定。                                                                              

机座型号

H63~132

H160~180

H200以上

空  间(mm)

25

30

50

3.接线盒的填料函方向,可在轴伸方向以外的其他三个方向进行调换,当需要重新确定接线盒填料函的方向时,可取下接线盒的四个螺钉,将接线盒移位。

4.将填料函内的橡皮圈穿孔后进行接线,并将压紧螺母拧紧,达到防水、防震的要求。

5.建议电动机连接采用联轴器连接,如果电机是双轴伸,第二轴伸必须采用联轴器连接,电机链接安装必须采用加热安装方式,以免硬性安装损害轴承。

6.安装完毕,应检查各紧固件、联接件是否可靠,用手转动装置应轻松无相擦。

 

▲ 运转

1. 本系列电动机共有6根接线头,分别标以U1、V1、W1、U2、V2、W2,电动机引出线接线方法请按接线盒盖上标明的方法连接。

2. 电动机在实际负载运转中应继续观察其起动情况,运转时声音是否正常,以及实际负载电流是否超过铭牌上的规定值,在运转0.5~1小时后,应停车检查电动机各机械连接部分有无松动,轴承有无过热及漏油,定转子有无相擦等。如无异常情况发现,即做正式使用。

3.电动机应满压起动,如电源容量不足不能满压起动时,则可采用降压起动。电动机的起动转矩降低与电压降低的平方成正比,降压起动一般采用Y-Δ起动补偿器。

 

▲ 维护及检修

1.电动机应按铭牌所载的额定值使用,切莫过载,并应注意清洁和检查,防止受潮或异物进入机体内部。

2.电动机运转时,应经常记录有关仪表及温度计的读数,运行期间的检修情况。同时故障处理亦应做好记录,以供今后维护及检修作参考。

3.除H80~132电动机使用封闭轴承不用再加润滑脂外,H160以上电动机均设有轴承润滑脂注入及排除装置。平时需要时,可取下电动机前后的注油螺塞,用油枪将润滑脂注入。

4. 轴承使用的润滑脂为HP-R润滑脂,一般工作六个月左右,应更换润滑脂一次,如发现油脂色泽暗,上面有水珠或灰尘聚集,油脂硬化变质或轴承发热等现象,应即更换新油脂。更换油脂时,应将陈脂清除,并将轴承及轴承盖洗净,然后加入新润滑脂,所加的油脂量以加至轴承塞的2/3为宜。

5.为了消除电动机的事故隐患,保证运行质量,电动机应定期进行检修,一般三个月小检修一次,每年大检修一次,小检修清除机体外的积尘、污垢,应保持接线板清洁,以免积尘受潮,产生爬电,检查电动机线圈的绝缘电阻、接头、接地线、各紧固零件及传动机构的连接等有无松动,消除所发现的缺陷。大检修时,应将电动机拆开,除进行小检修的项目外,要注意线圈,检查线圈是否完好,端部绑扎有否损坏,清洁机体内外,检查电动机的轴承磨损情况及更新润滑脂。

 

 (3) Motor H80~132 with sealed bearings need not to grease, motors whose frames dimensions are greater than H160 are equipped with grease filling and draining devices. You can remove the front and rear filling screw plugs to fill grease with a grease gun if it is necessary.

(4) The bearings should be filled with lithium base grease No. 3, which must be refreshed about every six months. If it is found that the color of grease dark, water drops or dust gathered on the grease, the grease hardened or deteriorated, or the bearing heated up etc., the grease must be refreshed, when refreshing, the used grease must be cleaned away, the bearing and its cover must be filled till its quantity reaches 2/3 of the bearing plugs.

(5)  Periodical inspection should be taken, in order to avert the possibility of accident and ensure normal operation. Generally maintenance should be done every three months and an overhaul every year. For a maintenance, the dust and dirt must be cleaned away form the external body, and the connecting plate should be kept clean to avoid dampness due to gathered dust, because damped connecting plate often causes creeping, detect the connections of the insulation resistance of windings, check the connection of terminals and grounding cables, and see if the joints of the fixing parts and drive mechanism have loosed. Every found fault must be eliminated. For an overhaul, the motor must be disassembled. Besides the items which must be done in the maintenance, you should notice the windings if they are in condition, and if the end windings are damaged, you should also clean the inside and outside of the body, observe if the motor’s bearing are worn out, and refresh the grease as required.

 

 

 (2) During actual operation on load, still observe if starting condition or sound is normal, and if the load current goes beyond the rated value, when the machine has run for 0.5~1 hour, shut down and observe if the joint parts of the machine have loose, or the bearings overheated or the oil leaked out, and the touching between the stator and the rotor occurred, if no such phenomenon is found, the motor can be put into practical operation.

(3)  The motor should be started with full voltage, if the capacity is incapable of starting it with full voltage, step-down starting can be adopted. The decrease in starting torque is proportional to the square of the voltage drop. Y-Δ starting compensator is normally used for the step-down starting.

 

▲ Service, Maintenance and Storage

(1)  The motor must be operated according to the ratings on the nameplate and never be overloaded. Cleaning and inspection should be cared and it must be prevented from moistening and from foreign matters entering.

(2)   The readings of relevant instruments, thermometer and maintenance situation should be always noted during operation. The treatments of troubles should be also kept as a reference to the service and maintenance in future days to come.

 

 

 

 

 

 

干  燥

1.受潮的电动机,使用前应进行干燥。

2.干燥时,干燥处理温度不允许超过100℃,干燥时间一般为4小时左右。

 

  主要故障及修理方法

故障

可能原因

修理方法

起动时不转有响声或振动

一相断路

查出断电处并修理

转动时有响声且过热

绕组短路

修理绕组

起动后转速低

相绕组首端末端接错

找出每相首端末端后正确连接

电压降低

检查电源电压

绝缘电阻较低

绕组脏污或受潮

清理电机干燥绕组

绕组温升过高

电机过载

减轻负载

轴承过热

电动机与转动机械连接偏心,皮带涨力过大

检查同心

轴承润滑脂过多或过少

检查润滑脂储量

轴承损坏

更换轴承

轴承响

轴承磨损

更换轴承

轴承脏污,润滑脂不足

更换新润滑脂

振动超标

基础刚度不够

重新安装

电动机轴与传动机械轴不同心

检查同心

 

 

 

 

OPERATION AND MAINTENANCE

▲  General

This series motor is three-phase squirrel cage induction motor, which are suitable for driving all kinds of machines, such as metal cutting machine tools, pumps, ventilators, separators, hydraulic machines and other accessory equipments.

 

▲  Preparation before installation

(1) Check all the data given on the nameplate, such as rated power, voltage, frequency and speed, if they are consistent with the actual demands.

(2) Inspect carefully if the assemblies of all the parts are in condition and if the fixing parts are loose. Turn the rotor by hand to observe if there is any clogging.

(3) Measure the insulation resistance between the phase windings and between windings to the ground with a 500V meager. During operation, the measured value should not be less than 1MΩ otherwise it must be dried.

 

▲ Installation of Motor

(1)  Any axial load will be not allowed in a vertical motor during operation.

(2)  The motor must be installed in a well-ventilating condition, and the clearance of the air in taking side of fan hood must not be less than the specified value on table 1.

 

 

                                                  Table 1

Frame No.

H63~132

H160~180

Above H200

Clearance (mm)

25

30

50

 

(3)   The terminal box can be fixed in three directions except of the shaft extension side. If the direction of the terminal box needs changed, it can be moved by removing the four symmetrical bolts on the box.

(4)  After punching the rubber pad in the terminal box, the cable may be connected. And the packing nuts must be screwed up in accord with demands of waterproof and shockproof.

(5)It is recommended to use coupling to link the motor, the second shaft must use coupling, if the motor has two shafts. To avoiding damage bearing, the coupling should be heated.

(6)After installation, check all the fixing and joint parts see if they are reliable, and the rotor must rotate freely without clogging then it is turned by hand.

 

▲ Trial Run

(1)   There are totally six terminals on each motor of this series, which are marked respectively U1, V1, W1, U2, V2, and W2 Lead wires must be connected according to the connecting method marked on the 

来源:替代恒力船用电机【德州恒力电机】江苏恒力电机有限责任公司|正品西门子电机|YE2H船用电机|YB3H|YZ-H电机端盖|JZ2H|YTH电机
替代恒力船用电机【德州恒力电机】江苏恒力电机有限责任公司|正品西门子电机|YE2H船用电机|YB3H|YZ-H电机端盖|JZ2H|YTH电机
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