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Open AccessArticle

A New Transmission Theory of “Global Dynamic Wrap Angle” for Friction Hoist Combining Suspended and Wrapped Wire Rope

1
School of Mechatronic Engineering, JiangSu Normal University, Xuzhou 221116, China
2
School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou 221116, China
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(4), 1305; https://doi.org/10.3390/app10041305
Received: 13 January 2020 / Revised: 8 February 2020 / Accepted: 12 February 2020 / Published: 14 February 2020
(This article belongs to the Section Mechanical Engineering)
A new transmission theory of “global dynamic wrap angle” for friction hoist is proposed. The theory is based on a mine hoist simulation model which combines the suspended rope with the wrapped rope. Rope dynamics in a suspended section are verified by the field experiment results. The theory holds that the mechanical state of wire rope is dynamic through the whole wrap angle, including deformation, contact and friction. When the rope enters the wrap angle, it provides positive friction and changes direction at a certain boundary point. The demarcation of the boundary depends on the rope load on both sides of the friction pulley. The theory is suitable for accurately analyzing the kinetics of high-speed and heavy-load friction hoisting. View Full-Text
Keywords: Hoisting Rope; Rope Dynamics; dynamic wrap angle; Friction Transmission Hoisting Rope; Rope Dynamics; dynamic wrap angle; Friction Transmission
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MDPI and ACS Style

Guo, Y.; Zhang, D.; Zhang, X.; Wang, D.; Wang, S. A New Transmission Theory of “Global Dynamic Wrap Angle” for Friction Hoist Combining Suspended and Wrapped Wire Rope. Appl. Sci. 2020, 10, 1305.

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