WING TYPE BIT FOR EXCAVATION HAMMER

A wing type bit for the ground drilling hammer is provided that the maintenance plurality task like the replace of bit can be quickly and conveniently performed. A wing type bit for the ground drilling hammer comprises a bit shank(100), a bit head(102) which is connected to the bit shank, and in whi...

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Bibliographic Details
Main Author KIM, JEONG KYEOM
Format Patent
LanguageEnglish
Published 24.03.2009
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:A wing type bit for the ground drilling hammer is provided that the maintenance plurality task like the replace of bit can be quickly and conveniently performed. A wing type bit for the ground drilling hammer comprises a bit shank(100), a bit head(102) which is connected to the bit shank, and in which as to the tip surface, a plurality of button tip(104) for excavations is adhered, a wing bit(103) which selectively spreads to the side exterior of the bit head and in which a part is protruded, a support pin(106) providing the axis of rotation concerning bit. The spline structure is formed in the external side of bit shank. An air pathway(105) is formed from the inner cavity of the bit shank to the circulation domain of bit.
Bibliography:Application Number: KR20070095398