Compound single cone bit

A single-cone, compound technology, applied to drill bits, drilling equipment, earthwork drilling and mining, etc., can solve the problems of drill bit mechanical penetration rate reduction, drill bit life reduction, cutting tooth wear, etc., to achieve enhanced rock breaking efficiency and improved breaking efficiency. Rock efficiency, load reduction effect
CN102022084AActive Publication Date: 2011-04-20SOUTHWEST PETROLEUM UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SOUTHWEST PETROLEUM UNIV
Publication Date
2011-04-20

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Abstract

The invention discloses a compound single cone bit comprising a bit body (1), a cone (2) and a cone point (3). Cutting teeth (5) are arranged on the cone (2) and the cone point (3); a shaft neck (4) is arranged on the bit body (1); the cone (2) and the shaft neck (4) are rotatably connected; and the cone point (3) is fixedly connected with the front end of the shaft neck (4). In the invention, the single cone bit is formed by compounding a fixed cutting structure and a non-fixed cutting structure so as to improve the rock removal rate of the bit and prolong the service life of the cutting teeth.
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Description

Technical field

[0001] The present invention belongs to the field of oil and natural gas, mining engineering, construction basic engineering construction, geology, hydrology and other drilling equipment technology fields. Specific speaking of a composite monolithic drill.

[0002] Background technique

[0003] The drill bit is a rocking tool used in the drilling project to break the rock and form a well.The single tooth wheel drill is one of the main rocks used in the drilling project, especially in the small well -eye drilling of the deep well in the deep well.

[0004] The single tooth wheel drill mainly uses the teeth on the teeth to squeeze the rock to break the rock.The existing monocular wheel drills are non -fixed cutting tooth drills. When the drill bit is rotated, the tooth wheel rotates around the axle and neck.Part of the teeth on the tooth wheel (tip of the tooth wheel) on the tooth wheel of the single tooth wheel drill always contact the rock with the bottom of the w...

Claims

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