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破碎机厂家故障维修之砖厂破碎机电动机坏了怎么办?

发布时间:2018-07-16 发布人:admin

砖厂破碎机电动机损坏之后,破碎机厂家认为首先要进行检修的就是定、转子铁芯故障检修:定、转子都是由相互绝缘的硅钢片叠成,是电动机的磁路部分。定、转子铁芯的损坏和变形破碎机厂家认为主要由以下几个方面原因造成。
Brickyard crusher motor damage, crusher manufacturers think first of all to overhaul is fixed, the rotor iron core troubleshooting: fixed, rotor are made of insulating silicon steel sheet pile into each other, is the magnetic circuit part of the motor. The manufacturer of stator and rotor core damage and deion crusher thinks that it is mainly caused by the following reasons.

1、轴承过度磨损或装配不良,造成定、转子相擦,使铁芯表面损伤,进而造成硅钢片间短路,电动机铁损增加,使电动机温升过高。这时应用细锉等工具去除毛刺,消除硅钢片短接,清理干净后涂上绝缘漆,并加热烘干。
1. Excessive wear or poor assembly of the bearing causes friction between the stator and rotor, which damages the surface of the iron core, thereby causing short circuit between the silicon steel plates, increasing the iron loss of the motor, and making the motor temperature rise too high. At this time, the tool such as fine file is used to remove the burrs, eliminate short silicon steel sheet joints, clean and apply insulating paint, and heat drying.

2、拆除旧绕组时用力过大,使盗槽歪斜和向外张开。此时应用尖嘴钳、木榔头等工具予以修整,使齿糟复位,并在不好复位的有缝隙的硅钢片间加入青壳纸、胶木板等硬质绝缘材料。
2. The old winding is removed with too much force, making the thief slot crooked and open outwards. At this time, the use of sharp nose pliers, wooden hammer and other tools to repair, so that the tooth bad reposition, and in the bad reposition of the gap between the silicon steel pieces, such as hard insulation materials as green shell paper, glue board.

3、因受潮等原因造成铁芯表面锈蚀。此时需用砂纸打磨干净,清理后涂上绝缘漆。
3. Corrosion of iron core surface due to damp. At this point needs to be sanded with sandpaper clean, after cleaning the coating insulation paint.

4、围绕组接地产生高热烧毁铁芯糟或齿部。可用凿子或刮刀等工具将熔积物剔除干净,涂上绝缘漆烘干。
4. High heat burns the core grains or teeth around the bonding site. Use tools such as chisel or scraper to remove the deposit and apply insulating paint to dry.

5、铁芯与机座间结合松动,可拧紧原有定位螺钉。若定位螺钉失效,可在机座上重钻定位孔并攻丝,旋紧定位螺钉。
5. When the iron core is loose in combination with the machine seat, the original positioning screw can be tightened. If the locating screw fails, the locating hole can be re-drilled on the machine seat, and the fixing screw can be tightened.

其次,破碎机厂家建议进行轴承故障检修:转轴通过轴承支撑转动,是负荷最重的部分,又是容易磨损的部件。
Second, the manufacturer of the crusher recommends bearing failure maintenance: the shaft through the bearing support rotation, is the most heavy load, is easy to wear parts.

1、故障检查
1. Fault inspection

运行中检查:滚动轴承缺油时,会听到“骨碌骨碌”的声音;若听到不连续的“梗梗”的声,可能是轴承钢圈破裂。轴承内混有沙土等杂物或轴承零件有轻度磨损时,会产生轻微的杂音。
Inspection during operation: when the rolling bearing is short of oil, you will hear the sound of "busy and busy". If you hear the sound of discontinuous "stem", it may be that the bearing steel ring is broken. When the bearing is mixed with sand and other debris or bearing parts have slight wear, it will produce slight noise.

拆卸后检查:先察看轴承滚动体、内外钢圈是否有破损、锈蚀、疤痕等,然后用手捏住轴承内圈,并使轴承摆平,另一只手用力推外刚圈,如果轴承良好,外钢圈应转动平稳,转动中无振动和明显的卡滞现象,停转后外钢圈没有倒退现象。否则说明轴承已不能再用了。左手卡住外圈,右手捏住内钢圈,用力向各个方向推动,如果推动时感到很松,就是磨损严重。
After disassembly check: first check the bearing rolling body, inner and outer steel ring to see if there is any breakage, rust, scar, etc., and then hold bearing inner ring with the hand, and makes the bearing straight, another hand push just outside the circle, if the bearing is good, the outer rims should rotate smoothly, no vibration in rotation and obvious card lag phenomenon, after a halt outside rims no setback. Otherwise, the bearing is no longer usable. The left hand is stuck in the outer ring, and the right hand holds the inner ring and pushes it hard in all directions.

2、故障修理
2. Fault repair

轴承外表面上的锈斑可用00号砂纸擦除,然后放入汽油中清洗;或轴承有裂纹、内外圈碎裂或轴承过度磨损时,应更换新轴承。更换新轴承时,要选用与原来型号相同的轴承。
The rust stain on the outer surface of the bearing can be wiped off with no. 00 sandpaper and then put into gasoline for cleaning. Or when the bearing is cracked, the inner and outer ring is broken or the bearing is excessively worn, the new bearing should be replaced. When replacing a new bearing, the same type of bearing should be used.

3、转轴故障检修
3. Troubleshooting of rotating shaft

①轴弯曲:若弯曲不大,可通过磨光轴颈、滑环的方法进行修复;若弯曲超过0.2mm,可将转轴放于压力机下,在拍弯曲处加压矫正,矫正后的轴表面用车床切削磨光;如果弯曲过大,则需另换新轴。
If the bending is not large, it can be repaired by grinding the shaft neck and slip ring. If the bending is more than 0.2mm, the rotating shaft can be placed under the press to be pressurized and corrected at the beat bend. The corrected shaft surface can be machined and polished with a lathe. If the bending is too large, a new axis needs to be replaced.

②轴颈磨损:轴颈磨损不大时,可在轴颈上镀一层铬,再磨削至需要尺寸;磨损较多时,可在轴颈上进行堆焊,再到车床上切削磨光;如果轴颈磨损过大时,也在轴颈上车削2-3mm,再车一套筒,趁热套在轴颈上,然后车削到所需尺寸。
Ringing journal wear: when the journal wear is not large, a layer of chromium can be plated on the journal before grinding to the required size; When there is much wear, it can be surfacing welding on the shaft neck and then cutting and polishing on the lathe. If the shaft neck is worn too much, cut 2-3mm on the shaft neck, then turn a set of cylinder, cover the shaft neck as hot as possible, and then cut to the required size.


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