Energy-saving compression valve of the rock drill

A. N. Glazov, A. A. Efanov, Tatiana Yurievna Aikina

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

The relevance of the research is due to the necessity to create pneumatic rock drills with low air consumption. The article analyzes the reasons for low efficiency of percussive machines. The authors state that applying a single distribution body in the percussive mechanism does not allow carrying out a low-energy operating cycle of the mechanism. Using the studied device as an example, it is substantiated that applying a compression valve with two distribution bodies separately operating the working chambers makes it possible to significantly reduce the airflow. The authors describe the construction of a core drill percussive mechanism and the operation of a compression valve. It is shown that in the new percussive mechanism working chambers are cut off the circuit by the time when exhaust windows are opened by the piston and air is not supplied into the cylinder up to 20% of the cycle time. The air flow rate of the new mechanism was 3.8 m3/min. In comparison with the drill PK-75, the overall noise level of the new machine is lower by 8-10 dB, while the percussive mechanism efficiency is 2.3 times higher.

Язык оригиналаАнглийский
Название основной публикацииIOP Conference Series: Earth and Environmental Science
ИздательInstitute of Physics Publishing
Том27
Издание1
DOI
СостояниеОпубликовано - 10 ноя 2015
Событие19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014 - Tomsk, Российская Федерация
Продолжительность: 6 апр 201510 апр 2015

Конференция

Конференция19th International Scientific Symposium on Problems of Geology and Subsurface Development, PGON 2014
СтранаРоссийская Федерация
ГородTomsk
Период6.4.1510.4.15

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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