Novel high-power electric hot-melt drill bit for polar region ice and snow drilling
The invention discloses a novel high-power electric hot-melt drill bit for polar ice and snow drilling. The bit comprises a sling, a heating rod and a bit body, wherein the sling is fixedly connectedto the top surface of the bit body, and the heating rod is inserted in the bit body. The hanger is of...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a novel high-power electric hot-melt drill bit for polar ice and snow drilling. The bit comprises a sling, a heating rod and a bit body, wherein the sling is fixedly connectedto the top surface of the bit body, and the heating rod is inserted in the bit body. The hanger is of a four-claw shaped structure, the hanger is made of 304 stainless steel, and the hanger and the bit body are connected by twenty hexagon socket screws. The upper portion of the bit body is of a circular truncated cone structure, the lower portion of the bit body is of a conical structure, the coneangle of the conical structure is 162 degrees, and sixty-one inserting slots are formed in the top surface of the bit body. The bit has the advantages that compared with existing hot melt drill bits,the bit is simpler in structure and higher in power. The heating rod is designed to be inserted, the bit is evenly distributed according to the law, the heat transfer efficiency is higher, the bit works independently, does not |
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