Improving the cutting mechanism of a disk-type wood chipper

Rubtsov, Yu. V.; Konnova, G. V.; Shchetinin, V. S.; Zolotoreva, S. V.

doi:10.3103/s1068798x11010205

Cited by 3 publications

(3 citation statements)

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“…Rock breaking is directly related to drivage efficiency and reliability, whose concentrated expression is rock-breaking tool design and related theory. Scholars at home and abroad have undertaken a number of studies on the tool rockbreaking mechanism [5][6][7][8][9][10]. Tan Qing studied rock fracture characteristics of boring machine cutterhead under rock temperature variation [11].…”

Section: Introductionmentioning

confidence: 99%

Calculation of Stress Intensity Factors at Both Ends of the Indenter under Eccentric Loads

Duo

2020

Mathematical Problems in Engineering

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During rock breaking by drill, cone rolls on the rock surface and contact between gear teeth and surface is basically positive Mode-I plane indentation and bias Mode-I plane indentation. During bias action, there will be an asymmetrical Mode-I singular stress field at both ends of the indenter. The stress field singularity is of the same order as Mode-I crack tip and with the same function distribution. In this paper, based on the J2 integral conservation law, a new method is established for solving stress intensity factor of bias Mode-I plane indentation, which not only provides respective stress intensity factor of both ends of the indenter but also compares relations between eccentricity, partial load, and stress intensity factor. The study not only provides a method for establishment of new cone drill engineering design but also improves rock layer boring efficiency.

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Section: Introductionmentioning

confidence: 99%

Calculation of Stress Intensity Factors at Both Ends of the Indenter under Eccentric Loads

Duo

2020

Mathematical Problems in Engineering

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“…Rock breaking is directly related to driving efficiency and reliability, whose concentrated expression is rock-breaking tool design and related theory. Scholars at home and abroad have undertaken many studies on tool rock breaking mechanism [5][6] [7] [8][9] [10]. Tan Qing studied rock fracture characteristics of boring machine cutterhead under rock temperature variation [11].…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study on Flat Tooth Cone Fracture Type Rock Breaking based on Plane Indentation

Duo¹,

Xie²

2018

IJHIT

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During rock breaking by drill, cone rolls on the rock surface, and contact between gear teeth and the surface is positive Mode-I plane indentation and bias Mode-I plane indentation. During bias action, there will be an asymmetrical Mode-I singular stress field at both ends of the indenter. The stress field singularity is of the same order as the Mode-I crack tip and with the same function distribution. In this paper, based on J2 integral conservation law, a new method is established for solving the stress intensity factor of bias Mode-I plane indentation, which not only provides respective stress intensity factor of both ends of indenter but also compares relations between eccentricity, partial load and stress intensity factor. The study not only provides a method for the establishment of a new cone drill engineering design but also improves rock layer boring efficiency.

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“…Improving the kinetic-energy storage capacity can reduce the deceleration during cutting, allowing the flywheel to undergo heavier cutting tasks. Ideas and approach-Based on a well-known commercial wood chipper, which claims to have a heavier flywheel and better performance than competing products, the MU team used design optimization tools to increase the mass moment of inertia without increasing the weight of the flywheel, while the SDUT team focused on redesigning the cutter structure and improving the cutter [5] design.…”

Section: Case 2--improving the Design For A Commercial Wood Chippermentioning

confidence: 99%

Synchronizing the Teaching of Capstone Design Course in Two Countries

Lin¹,

Wei²,

Wang³

et al.

2012 ASEE Annual Conference &Amp; Exposition Proceedings

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Improving the cutting mechanism of a disk-type wood chipper

Cited by 3 publications

References 0 publications

Calculation of Stress Intensity Factors at Both Ends of the Indenter under Eccentric Loads

Calculation of Stress Intensity Factors at Both Ends of the Indenter under Eccentric Loads

Theoretical Study on Flat Tooth Cone Fracture Type Rock Breaking based on Plane Indentation

Synchronizing the Teaching of Capstone Design Course in Two Countries

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