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Quick connect-disconnect coupling for blast furnace tap hole drill bit
Quick connect-disconnect coupling for blast furnace tap hole drill bit
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机译:高炉出铁孔钻头的快速连接-断开连接
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摘要
The component parts of a drill rod assembly on a blast furnace tap hole drill are joined together by providing a coupling having at least one extension with frusto-conical side walls adapted to mate with a socket having frusto-conical side walls within the drill rod component to be connected thereto, or in the alternative, incorporating such a coupling as a portion of one of the component parts.
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