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Reinforced concrete rotary drill bit

A technology of reinforced concrete and drill bits, which is applied in drill bits, earth-moving drilling, drilling equipment, etc., can solve the problem of picks falling off easily, and achieve the effect of stable structure, preventing screw heads from falling off, and preventing slipping.

Inactive Publication Date: 2017-03-01
天津市八方工程机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a rotary drilling bit for reinforced concrete to solve the problem that the picks are easy to fall off in the above background technology

Method used

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  • Reinforced concrete rotary drill bit
  • Reinforced concrete rotary drill bit

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Experimental program
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Effect test

Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing:

[0012] This embodiment includes a drill shaft 1, the top of the drill shaft 1 is provided with a connecting ring 2, the top of the connecting ring 2 is provided with a connecting column 3, the connecting column 3 is provided with a connecting hole 4, and the lower surface of the connecting ring 2 is provided with a reinforcing plate 5. The other side of the reinforcing plate 5 is fixed on the drill shaft 1, and the outer wall of the drill shaft 1 is provided with a rotary piece 6, and the rotary piece 6 is provided with a limit boss 13, the limit boss 13 is ring-shaped, and the limit boss 13 is provided with a tooth pick 7, and the rotary piece 6 is also provided with a limit projection 14, which is located in the middle of the limit projection 13, and the bottom surface of the pick tooth 7 is provided with a stopper that matches the limit projection 14. The limit groove 17...

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PUM

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Abstract

The invention belongs to the drill bit technical field, and especially relates to a reinforced concrete rotary drill bit comprising a drill spindle; the top of the drill spindle is provided with a connecting ring having a connecting pole; a connecting hole is arranged in the connecting pole; the bottom face of the connecting ring is provided with a reinforcement plate; the other side of the reinforcement plate is fixed on the drill spindle; the outer wall of the drill spindle is provided with a spiral slice having annular limit platforms; picks are arranged in the limit platforms; the spiral slice is also provided with limit bosses arranged in middles of the limit platforms; the bottom face of the pick is provided with a limit groove matched with the limit boss; the outer wall of the pick is provided with a limit ring arranged on the top of the limit platform; the pick is connected with the limit platform through a bolt.

Description

technical field [0001] The invention belongs to the technical field of drill bits, in particular to a rotary drilling drill bit for reinforced concrete. 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 f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/00
Inventor 章瑞宇李宏愿
Owner 天津市八方工程机械设备有限公司
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