Authors: S.S. Nozirzoda
Title of the article: Ensuring the operational properties of the knife body of the helicoid shape of the executive body of the geohod
Year: 2023, Issue: 3, Pages: 49-58
Branch of knowledge: 2.8.8. Geotechnology, Mining machines (engineering)
Index UDK: 622.23.05
DOI: 10.26730/1816-4528-2023-3-49-58
Abstract: The geometric parameters of the cross-section profile of the knife of the executive body of the geohod for the destruction of soft rocks are one of the key factors that affect the operational properties of the knife body of the helicoid shape. The paper considers the analysis of geometric parameters of the cross-section of the profile of the knife body of the executive body of the geohod, taking into account the cutting edge. Based on the optimal geometric parameters during the destruction of soft rocks, the dependence of the sharpening angle on the anterior γ and posterior α angle of inclination at different values of the cutting angle was revealed, and the dependence of the angular parameters on the height of the slope and the width of the knife was also revealed. According to the selected parameters, the geometry of the cutting edge is set for various helicoid shapes of the knife. To substantiate the geometric parameters of the cutting edges and the selected material for manufacturing, numerical simulation of the experiment on the study of the stress-strain state of the knife of the executive body of the go-round was carried out. The discretizations of geometric models of the knife for various shapes are presented and plots of the distribution of equivalent stresses and radial displacements for each shape of the knife of the executive body at maximum load values are obtained. As a result of the conducted research, dangerous sections were identified for each form of the executive body knife.
Key words: geohod knife executive body operational properties geometric parameters stress-strain state
Receiving date: 12.05.2023
Approval date: 15.06.2023
Publication date: 11.07.2023
This work is licensed under a Creative Commons Attribution 4.0 License.
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