Design of large diameter drill pipe loading and unloading device for coal mine tunnel drilling rig
According to the characteristics of large-diameter drill pipe, such as large volume, heavy weight and large quantity used in the drilling process, a large-diameter drill pipe loading and unloading device for coal mine tunnel drilling rig was developed. The paper introduces the scheme formulation of...
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| Autor principal: | |
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| Format: | Artigo |
| Idioma: | Chinês |
| Publicat: |
Editorial Office of Safety in Coal Mines
2022-05-01
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| Col·lecció: | Meikuang Anquan |
| Matèries: | |
| Accés en línia: | https://www.mkaqzz.com/cn/article/id/7952 |
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