Effect of cutting depth and line spacing on the cuttability behavior of sandstones by conical picks

Various types of conical picks in different shapes are produced and widely employed on mechanical excavators. Depending on the mechanical and abrasivity properties of rocks, appropriate shape of pick is selected. In order to obtain maximum efficiency from the pick during excavation, the interaction between the pick and rock and the cutting mechanism play very important role. In this context, linear cutting tests were conducted by using a conical pick at the cutting depths between 3 and 18 mm and also at the various line spacings on sandstones exhibiting different mechanical properties. The results indicated that cutting depth and line spacing have significant influences on the tool forces acting on the pick, the ratio of normal to cutting force, and the specific energy. Accordingly, strong correlations and empirical models were developed. In conclusion, the empirical models proposed for estimating the forces and specific energy would be used for producing the conical bits and also designing the cutter heads of mechanical excavators on soft and medium-hard strength sandstones. © 2017, Saudi Society for Geosciences.

Dergi Adı Arabian Journal of Geosciences
Dergi Cilt Bilgisi 10
Dergi Sayısı 23
Sayfalar -
Yayın Yılı 2017
Eser Adı
[dc.title]
Effect of cutting depth and line spacing on the cuttability behavior of sandstones by conical picks
Yazar
[dc.contributor.author]
Wang X.
Yazar
[dc.contributor.author]
Su O.
Yazar
[dc.contributor.author]
Wang Q.-F.
Yazar
[dc.contributor.author]
Liang Y.-P.
Yayın Yılı
[dc.date.issued]
2017
Yayıncı
[dc.publisher]
Springer Verlag
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
Various types of conical picks in different shapes are produced and widely employed on mechanical excavators. Depending on the mechanical and abrasivity properties of rocks, appropriate shape of pick is selected. In order to obtain maximum efficiency from the pick during excavation, the interaction between the pick and rock and the cutting mechanism play very important role. In this context, linear cutting tests were conducted by using a conical pick at the cutting depths between 3 and 18 mm and also at the various line spacings on sandstones exhibiting different mechanical properties. The results indicated that cutting depth and line spacing have significant influences on the tool forces acting on the pick, the ratio of normal to cutting force, and the specific energy. Accordingly, strong correlations and empirical models were developed. In conclusion, the empirical models proposed for estimating the forces and specific energy would be used for producing the conical bits and also designing the cutter heads of mechanical excavators on soft and medium-hard strength sandstones. © 2017, Saudi Society for Geosciences.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Conical pick
Konu Başlıkları
[dc.subject]
Cutting depth
Konu Başlıkları
[dc.subject]
Line spacing
Konu Başlıkları
[dc.subject]
Rock cutting
Konu Başlıkları
[dc.subject]
Specific energy
Konu Başlıkları
[dc.subject]
Tool forces
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1866-7511
Sponsor YAYINCI
[dc.description.sponsorship]
Chongqing Science and Technology Commission: CSTCCXLJRC201709 KFJJ2016032 China National Critical Project for Science and Technology on Water Pollution Prevention and Control: 2016ZX05043005
Sponsor YAYINCI
[dc.description.sponsorship]
Funding information The authors gratefully acknowledge the Open Fund of Chongqing Key Laboratory of Manufacturing Equipment Mechanism Design and Control (Grant No. KFJJ2016032), the Chongqing Science and Technology Innovation leading talent support plan (Grant No. CSTCCXLJRC201709), and the National Science and Technology Major Project of China (Grant No. 2016ZX05043005).
Dergi Adı
[dc.relation.journal]
Arabian Journal of Geosciences
Dergi Sayısı
[dc.identifier.issue]
23
Dergi Cilt Bilgisi
[dc.identifier.volume]
10
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1007/s12517-017-3307-3
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/5293
Görüntülenme Sayısı ( Şehir )
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Görüntülenme Sayısı ( Zaman Dağılımı )
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7
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
09 Şubat 2024 07:50
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cutting mechanical conical forces sandstones specific models empirical between properties energy different excavators indicated results normal Accordingly significant spacing influences acting Various strong cutter Geosciences Society strength medium-hard on soft designing correlations producing estimating proposed conclusion
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