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http://dx.doi.org/10.5050/KSNVE.2012.22.11.1064

Case Study for Pitting of Elevator's Worm Gear Type Traction Machine  

Seo, Sang-Yoon (Korea Elevator Safety Technology Institute)
Choi, Byeong-Keun (The Dept. of Energy and Mech. Eng., Inst. of Marine Industry, GyeongSang National Univ.)
Yang, Bo-Suk (The Dept. of Mech. and Automotive Eng., Pukyong National University)
Lee, Seon-Sun (Korea Elevator Safety Technology Institute)
Kim, Sung-Hyeob (Korea Elevator Safety Technology Institute)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.22, no.11, 2012 , pp. 1064-1070 More about this Journal
Abstract
This paper analyzes the pitting's cause of elevator's worm gear type traction machine. To find a cause of pitting problem, we analyzed vibration, a proper design allowance and lubrication. We brought a conclusion that the cause of pitting is not a simple vibration problem, such as misalignment of worm reducer and rail, but mostly related to a designed allowance. In this case, the allowance is tight. In general, the allowance of traction machine and lubrication is varied by manufacturers. When the allowance is tight, a proper lubrication can diminish the pitting problem.
Keywords
Elevator; Pitting; Vibration; Misalignment; Lubricating Oil; Rail;
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  • Reference
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