Impact of Pick Skew and Tilt on Cutting Geometry

Yong Sun; Xing Sheng Li

doi:10.4028/www.scientific.net/AMM.851.216

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 851Impact of Pick Skew and Tilt on Cutting Geometry

Impact of Pick Skew and Tilt on Cutting Geometry

Abstract:

Cutterheads equipped with picks are commonly used for mechanized excavation in civil and mining industries. Attack, tilt and skew angles are three key parameters that affect the performance of the picks and the cutterheads. Therefore, it is necessary to optimize these three types of angles. The optimal values of these angles are often obtained through theoretical analysis and/or tests. However, because these angles are set sequentially during manufacturing and one angle which is set before another will be changed by the latter, the final angles of a pick can be different from its designed values. To ensure the required angles, it is essential to calculate the corresponding value of each angle after each step in setup. As an expansion to our previous study which only considered attack and tilt angles, in this paper we developed formulas to take into account all three types of angles.

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Periodical:

Applied Mechanics and Materials (Volume 851)

Pages:

216-220

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.851.216

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Online since:

August 2016

Authors:

Yong Sun*, Xing Sheng Li

Keywords:

Continuous Mining, Cutterhead, Cutting Picks, Drum Design, Mechanized Excavation, Pick Angles

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