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破碎机设备的三大故障维修要点
网址:http://www.dhfjx.cn    发布时间:2018-10-22
破碎机设备三大故障:轴承故障检修、转轴故障检修和定、转子铁芯故障检修。下面就对三大故障检修要点进行一下分析:
Crusher equipment three major faults: bearing fault repair, shaft fault repair and fixing, rotor core fault repair. The following three points for troubleshooting are analyzed.
一、轴承故障检修磨损的部件
1. Wear parts for bearing failure maintenance
转轴通过轴承支撑转动,是负荷重的部分,又是容易磨损的部件。
The rotating shaft is rotated through the bearing support, which is the heaviest part of the load and the component which is easy to wear.
①故障检查
Troubleshooting
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 in operation; rolling bearing oil shortage, will hear the "bone and bone" sound; if heard discontinuous "stem" sound, may be bearing ring rupture. Minor noise will be produced when bearings are mixed with sand and other debris or bearing parts with slight wear.
拆卸后检查;先察看破碎机轴承滚动体、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。
Inspect after disassembly; first inspect the crusher bearing rollers, inside and outside steel ring whether there is damage, rust, scar, etc., and then pinch the inner ring of the bearing with the hand, and make the bearing flattened, the other hand force push the outer rigid ring, if the bearing is good, the outer ring should rotate smoothly, no vibration and obvious stagnation phenomenon in rotation, stop and turn outside. The steel ring has not regressed. Otherwise, the bearing can no longer be used. The left hand holds the outer ring, the right hand holds the inner ring, and pushes it in all directions. If it feels loose when pushing, it is worn out seriously.
②故障修理
移动碎石机租赁
Troubleshooting
轴承外表面上的锈斑可用砂纸擦除,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 spots on the outer surface of the bearing can be erased by sandpaper and then washed in gasoline; or when the bearing is cracked, the inner and outer rings are broken or the bearing is excessively worn, the new bearing should be replaced. When replacing the new bearing, the bearing should be the same as the original one.
二、转轴故障检修
Two. Troubleshooting of rotating shaft
①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。
(1) Journal wear; when the journal wear is small, chromium can be plated on the journal, and then grinding to the required size; wear more, can be surfacing on the journal, and then to the lathe cutting and polishing; if the journal wear is too large, also on the journal turning 2-3 mm, and then turning a set of barrel, while the hot sleeve on the journal, and then turning to the required size Size.
②轴弯曲;若破碎机轴弯曲不大,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。
(2) Shaft bending; if the shaft of crusher bends little, it can be repaired by polishing the shaft neck and slip ring; if the bending exceeds 0.2 mm, the rotating shaft can be placed under the press, pressurized and rectified at the beat bend, and the surface of the corrected shaft can be machined and polished by lathe; if the bending is too large, a new shaft must be replaced.
三、定、转子铁芯故障检修
Three. Troubleshooting for stator and rotor core
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主要由以下几个方面原因造成。
Both stator and rotor are made of mutually insulating silicon steel sheets, which are the magnetic circuit parts of motors. The damage and deformation of stator and rotor core are mainly caused by the following aspects.
①破碎机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 and tear of the crusher bearings or poor assembly, resulting in friction between the stator and rotor, resulting in damage to the surface of the iron core, resulting in short circuit between silicon steel sheets, increased iron loss of the motor, resulting in excessive temperature rise of the motor. At this time, the use of fine files and other tools to remove burrs, eliminate short silicon steel sheet, clean up after coating insulation paint, and heating and 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) when the old winding is removed, the force is too large to cause the slot to be skewed and outward. At this time, sharp mouth tongs, wooden hammers and other tools to be dressed, so that the tooth lees reset, and in the silicon steel sheet with a gap between the hard insulation materials such as green paper, bakelite 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。
Corrosion of iron core due to damp and other reasons. At this point, sandpaper is needed to be cleaned and painted.
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) burn the core or tooth parts of the core to generate high heat around the ground. It is possible to remove the deposits with chisel or scraper tools, and use the 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. The loosening of the core and the frame can tighten the original locating screw. If the locating screw fails, the locating hole and the tapping can be re drilled on the machine seat, and the fixing screw can be tightened.
本文内容来源:移动碎石机租赁,想要了解更多请点击我们的网站:http://www.dhfjx.cn/
Source of this article: Mobile gravel rental, want to know more please click our website: http://www.dhfjx.cn/.
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