Bottom drilling structure, rotary drilling bucket and rotary drilling rig

A rotary drilling and bottom-drilling technology, which is applied to drilling tools, drilling equipment, earthwork drilling, etc., can solve the problems of small slag feeding area and low slag feeding efficiency, and achieve the goal of improving slag feeding efficiency and increasing slag feeding volume Effect

Active Publication Date: 2021-09-07
BEIJING SANY INTELLIGENT MFG TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of small slag feeding area and low slag fee

Method used

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  • Bottom drilling structure, rotary drilling bucket and rotary drilling rig
  • Bottom drilling structure, rotary drilling bucket and rotary drilling rig
  • Bottom drilling structure, rotary drilling bucket and rotary drilling rig

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. 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.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to the technical field of rotary drilling construction, in particular to a bottom drilling structure, a rotary drilling bucket and a rotary drilling rig. The bottom drilling structure comprises a bottom plate, a spiral structure and a cutting structure, and a notch is formed in the bottom plate; and the spiral structure comprises spiral blades, one end of each spiral blade is connected to the bottom plate, and the other end of each spiral blade extends below the bottom plate. The cutting structure is connected to the other end of the spiral blade and matched with the notch to form a slag inlet. According to the bottom drilling structure, the cutting structure is connected to the lower portion of the bottom plate through the spiral blades, the cutting structure moves downwards, the slag inlet is enlarged, the slag inlet amount in unit time is increased accordingly, and the slag inlet efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of rotary drilling drilling construction, in particular to a drill bottom structure, a rotary drilling bucket and a rotary drilling rig. Background technique [0002] As a construction machine suitable for hole-forming operations in building foundation engineering, rotary drilling tools are widely used in hole-forming operations in foundation construction projects such as municipal construction, highway bridges, and high-rise buildings. [0003] At present, rotary drilling tools generally include a light-load high-efficiency soil layer sand bucket, also called a single-bottom toothed soil layer sand bucket. The bottom structure of the sand bucket generally includes a bottom plate, a tooth plate, a slag retaining The center drill and bucket teeth, the slag retaining plate, the tooth plate and the bucket teeth are welded to each other to form a slag inlet. The slag inlet area of ​​the slag inlet is small, the ...

Claims

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Application Information

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IPC IPC(8): E21B27/04E21B11/00
CPCE21B27/04E21B11/00
Inventor 骆朋辉
Owner BEIJING SANY INTELLIGENT MFG TECH CO LTD
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