Elevator vibration is mainly caused by mechanical and electrical reasons. About 80% of all vibration is mechanical and 10% is electrical. Vibration caused by improper maintenance or inadequate maintenance accounted for more than 60%, vibration caused by aging or damage of components accounted for about 20%, and problems caused by installation quality accounted for about 20%.
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1.1Vibration Caused by Guideway
Installation causes are as follows: a) low accuracy of the template; b) poor accuracy control of each dimension when lofting; c) deformation of the template in the construction process; d) bad environment, such as large temperature changes, strong wind blowing; e) lack of technical level, experience and responsibility of the construction personnel. Once the guide rail alignment and verticality exceed the standard due to inadequate installation, it may become an incurable disease of elevator vibration.
1.2Vibration Caused by Cabin
Installers fail to strictly comply with the installation process and process requirements, resulting in stress at the connection between the girder and the vertical beam, and the inaccuracy of the horizontal and vertical degrees of the car results in the shift of the car's gravity center.
For example, replacing shoe lining and boot guide frame and adjusting the gap of safety forceps inappropriately cause offset. Maintenance is not in place. Fixed bolts are maintained firmly at least once a year.
1.3 Vibration Caused by Main Wire Rope, Drawing Wheel and Guide Wheel
The main wire rope is over standard in total wear or the traction wheel groove is over standard in total wear. The main wire rope becomes smaller due to uneven force, which causes one or several serious wear and tear
2 Vibration due to encoder
Vibration caused by encoder is mainly manifested in the elevator vibration and vibration frequency is getting higher and higher, more and more serious, parking dithering, uneven layer, across the flat layer.
2.3 Vibration Caused by Power Supply
Poor wiring of three-phase power supply and aging of wiring
2.4 Vibration Caused by Inverter
Vibration of current output to elevator due to bad output of frequency converter
Poor connection of frequency divider board or damage of frequency divider board cause pulse distortion and vibration.
If any of these causes your elevator to be unusable, our company will always be at your service.Shaanxi Sanjjn Elevator Fittings Co.,Ltd
