The mechanical failure of the three-phase AC asynchronous motor three-phase AC asynchronous motor is mainly manifested in the following three aspects: Types Of Shackles,Crosby G2130,Bolt Shackle,Bolt Type Anchor Shackle Guangdong Gongyou Lift Slings Machinery CO.,LTD , https://www.workmatehoist.com
1, broom
1 Asynchronous motor has a small air gap between the stator and the rotor, which easily leads to collision between the stator and the rotor.
2 The bearing is seriously out of tolerance and the inner hole of the end cover is worn or the end cover is worn and deformed, so that the bottom of the base, the end cover and the rotor cause the broom.
3 If it is found that the bearing should be replaced in time, replace the end cap or brush plating.
2, vibration
1 should be distinguished by the motor itself, or caused by poor transmission, or transmitted by the mechanical load end, and then excluded for specific circumstances.
2 The vibration caused by the motor itself is mostly due to poor rotor dynamic balance, poor bearing, bending of the shaft, or different shafts of the end cover, the base, the rotor, or the ground of the motor installation. The installation is not in place and the fasteners are loose. Caused.
3 Vibration produces noise and creates additional loads.
3, bearing
1 If the bearing is not working properly, it can be judged by experience and hearing and temperature.
2 Touch the bearing box with the rod (copper rod). If you hear the impact sound, it means that there may be one or several balls broken. If you hear a click, it means that the bearing is not enough oil, because the motor needs The grease needs to be changed once every 3000~5000 hours.
3 The motor is not too much to add grease. If it is too much, it will cause a large friction between the rotating part of the bearing and the grease to generate heat. Generally, the grease placed in the bearing box is about one-half of the total dissolved to Two-thirds is enough.
4 If the motor bearing is installed incorrectly, the tolerance is too tight or too loose, which will cause the bearing to heat up.
5 A well-assembled bearing in a horizontal motor is only subject to radial stress. If the interference is too large, the bearing clearance will be too small, sometimes close to zero, and the hand rotation will be inflexible, so that heat will be generated during operation.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn