Open AccessDesign of New-type Impactor Based on Combined Effect by Air-pressure and Electromagnetism
Author(s) -
Wang Wei-zhang,
Zengmei Song,
Liming Shi
Publication year - 2021
Publication title -
converter
Language(s) - English
Resource type - Journals
ISSN - 0010-8189
DOI - 10.17762/converter.57
Subject(s) - electromagnetism , mechanics , hammer , mechanical energy , work (physics) , impact energy , power (physics) , mechanical engineering , engineering , physics , structural engineering , thermodynamics , quantum mechanics
Analysis ofrock-breaking mechanism of cyclical impact loading under high and low impact on the basis of impact stress wave theory holds that microcrack occurs in the rock due to high energy impact and the following medium and low impact can cause rapid destruction of the rock. Intermittent impact method of variable impact energy is hence suggested. Electromagnetically-propelled device is added to the traditional air hammer by means of intermittent intervention by electromagnetic impact.Combined impact by gas and power and interval pneumatic impact is applied to design new-type impactor based on the combined effect by air-pressure and electromagnetism, which is supposed to provide a new solution for improvement of impactor work efficiency.