Split type drill bit with torsion impact function

Abstract

The invention relates to a split type drill bit with a torsion impact function. The split type drill bit mainly comprises a drill bit body, a drill bit body joint, a roller cone upper body, a roller cone lower body and a vibration generator, wherein the drill bit body is connected with the roller cone lower body through a biased tooth palm shaft neck, the roller cone upper body is mounted on an upper end shaft neck of the roller cone lower body, the vibrator generator is mounted in the drill bit body, and the drill bit body is connected with a drill bit body joint through threads. In an operation process, the roller cone lower body can revolute with the drill bit body and can rotate around the tooth palm shaft neck of the drill bit body, the roller cone upper body can revolute with the drill bit body and can rotate around the upper end shaft neck of the roller cone lower body, rocks are broken by the drill bit in a rotary cutting manner, meanwhile, a driving force is provided for the vibration generator by the revolution of the roller cone lower body, and the vibration generator generates periodic micro-amplitude torsion impact, so that the stick slip phenomenon of the drill bit isreduced; and a roller cone is of a split structure, so that the tooth shaving efficiency of a small-end gear ring and a middle gear ring is improved, and the rock breaking efficiency of the drill bitis improved.

Description

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AI Technical Summary

Benefits of technology

This patented design improves the performance of bits used during drilling operations by providing better lubrication environments at their bottom ends while also reducing sticking between parts that may occur when they rub together too much or accidentally hit each other. Additionally, it includes stronger oil guiding channels along its length to ensure efficient use of energy from the rotation of the cutter blades. Overall, this technology enhances the functionality and durability of drills' tools.

Problems solved by technology

This patented technical problem addressed during this patents text relates to improves the performance of drill rigged cutting elements (BHA) such as inserts like tungsten carbide cutters and diamond cutter blades due to their limited ability to efficiently remove fractured materials without causing damage. Current methods involve adding shock loading to the BHA with multiple parts - including but also requiring extra time and effort.

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