Bidirectional spiral drill bit

A two-way helix and drill bit technology, applied in drill bits, drilling tools, drilling equipment, etc., can solve the problems of weakened excavation effect and easy to get soiled, and achieve the effect of good excavation effect, avoiding wear and keeping clean and tidy.

Inactive Publication Date: 2019-07-09
付旭升
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During construction, different drill bits are selected according to different soil and geological conditions, but when the drill bit is in use, the one-way rotation makes the inside easily stained with soil, especially the cylindrical drill bit, which has a bad influence on the use of the drill bit. It also reduces the effect of excavation

Method used

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see Figure 1-5 , a two-way helical drill bit, comprising a top cover 1, an outer cylindrical drill bit 2 and an inner cylindrical drill bit 3, the rotation directions of the outer cylindrical drill bit 2 and the inner cylindrical drill bit 3 are opposite, realizing two-way rotation, and the two-way rotation makes the excavation effect Better, the soil crushing effect is better, so that the drill bit is not easy to stick to the soil, so as to keep the d...

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Abstract

A bidirectional spiral drill bit disclosed by the invention comprises a top cover, an outer barrel-shaped drill bit body and an inner barrel-shaped drill bit body; the inner barrel-shaped drill bit body is arranged in the outer barrel-shaped drill bit body, a side scraper is arranged on the side wall of an inner drill bit pipe body, and the bottom of a rotating shaft connecting block is fixedly connected with the top of the inner drill bit pipe body through a second fixing screw. According to the bidirectional spiral drill bit, a side scraper is arranged on the outer wall of the inner barrel-shaped drill bit body; the side scraper is in contact with the inner wall of the outer drill bit pipe body; during rotation, the side scraper effectively scrapes off soil on the inner wall of the outerbarrel-shaped drill bit body; the problem that rotation is affected due to too much soil between the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body, and the abrasion problem are solved; the service life of the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body is greatly prolonged, the outer barrel-shaped drill bit body and the inner barrel-shaped drill bit body are opposite in rotation direction, bidirectional rotation is achieved, the excavation effect is better, the soil smashing effect is better, the bidirectional spiral drill bitis not prone to being adhered to soil, and therefore cleanliness of the bidirectional spiral drill bit is kept.

Description

technical field [0001] The invention relates to the technical field of drill bits, in particular to a bidirectional helical drill bit. Background technique [0002] Rotary drilling bit is a construction technology suitable for hole-forming operations in building foundation engineering. Widely used in municipal construction, highway bridges, high-rise buildings and other foundation construction projects, with different drilling tools, suitable for dry (short screw), or wet (rotary bucket) and rock formation (core drill) hole-forming operations, rotary drilling The drilling rig has the characteristics of large installed power, large output torque, large axial pressure, flexible maneuverability, high construction efficiency and multi-function. The rotary drilling rig is suitable for the soil and geological conditions in most areas of our country, and has a wide range of applications. It can basically meet the needs of bridge construction, high-rise building foundations and oth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/00E21B12/06
CPCE21B10/00E21B12/06
Inventor 付旭升
Owner 付旭升
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