Use of a static model to study the discharge of rock from the buckets of a rotary excavator
Mechanization and Automation in Mining
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Summary
- 1.
Cohesive soil falls out of a sloping bucket in separate layers, with a thickness that depends on the angle of inclination of the bucket ϕ.
- 2.
The form of the cross section of the internal surface of the soil remaining in the bucket after discharge of each consecutive layer is a parabola, and depends on the density of the soil in the bucket and the angle ϕ. To facilitate discharge of soil from the bucket in a position with ϕ=45−60°, the cross section of the bucket should have a similar shape.
- 3.
The degree of filling of the bucket should not be more than 0.7, as further filling consolidates the soil and has an adverse effect on discharge.
Keywords
Unit Weight Cohesive Soil Rotatable Frame Consecutive Layer Rotary Excavator
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Literature Cited
- 1.V. K. Trofimov, Investigation of the process of discharge of buckets of the ÉRG-1600 excavator, Symposium, “Mining, Constructional and Roadmaking Machines,” No. 2, Izd. “Tekhnika,”, Kiev (1965).Google Scholar
- 2.G. A. Avigdor, Determining the principal dimensions of buckets of an excavator with a chamberless rotor, Gornye mashiny i avtomatika, No. 7 (1963).Google Scholar
Copyright information
© Consultants Bureau 1966