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Vol 216
Pages:
104-111
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RUS

Dynamic study of underground loading machine’s working tool crank-rocker mechanism

Authors:
I. P. Timofeev1
I. A. Korolev2
About authors
  • 1 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
  • 2 — Ph.D. assistant professor National Mineral Resources University (Mining University)
Date submitted:
2014-12-09
Date accepted:
2015-02-16
Date published:
2015-12-25

Abstract

The article is devoted to the dynamic study of the underground shovel’s working tool mech-anism, assembled in accordance with a crank-rocker scheme, containing curved wings, as well as to the study of the effect on uneven movement rate, produced by the working tool mechanism; pa-rameters and structural characteristics of the shovel paw design shape. On the basis of a synthesis of the loading machine’s working tool mechanisms, a kinematic scheme with a shovel paw, con-sisting of a straight operating part and a curved working tail, is offered. A dynamic model of the mechanism based on a variable weight of shovel bulk cargo and drive parameters of the working tool is developed, a motion equation is made up. Comparison between statistical indicators of effec-tive output obtained from the shovel loaders drive mechanism and the results of a separate computer simulation of the mechanisms under analysis attest to the proposed model’s performability.

Keywords:
loading machine crank-rocker mechanism shovel paw dynamic study variable mass movement irregularity factor
Go to volume 216

References

  1. Обоснование рациональных параметров механизма нагребающих лап шахтной погрузочной машины / И.П.Тимофеев, Н.А.Белоус, А.Ю. Кузькин, Г.В.Соколова // Современные проблемы науки и образования. 2014. № 4; URL Дата публикации 11.07.2014.
  2. Погрузочные машины непрерывного действия: Учеб. пособие для вузов / Под ред. проф. И.Г.Штокмана. М.:Недра, 1986. С.319-337.
  3. Ревякина Е.А. Метод определения параметров погрузочных машин с парными нагребающими лапами с учетом масштабного фактора и формы кусков погружаемого материала: Автореф. дис.…канд. техн. наук / Южно-Российский государственный технический университет (Новочеркасский политехнический институт). Новочеркасск, 2007. 20 с.
  4. Солод В.И. Горные машины и автоматизированные комплексы / В.И.Солод, В.И.Зайков, К.М.Первов. М.: Недра, 2003. 503 c.
  5. Тимофеев И.П. Оптимизация параметров механизма нагребающей лапы погрузочной машины типа ПНБ / И.П.Тимофеев, Н.А.Белоус, А.Ю. Кузькин // Записки Горного института. 2014. Т. 209. С.13-16.
  6. Тимофеев И.П. Синтез механизма исполнительного органа шахтной погрузочной машины с нагребающими лапами / И.П.Тимофеев, М.А.Васильева, А.Ю.Кузькин // Записки Горного института. 2012. Т.195. C.241-244.

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