Drill buckets and rotary drilling rigs

A drilling bucket and drilling tooth technology, which is applied in the field of construction machinery, can solve problems such as low drilling efficiency and wear of drilling teeth, and achieve high drilling efficiency, long service life and wide application range

Active Publication Date: 2017-01-25
BEIJING SANY HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing drilling bucket mainly cuts and drills the soil below through the drill teeth at the bottom. The drilling efficiency is low for hard soil or partially weathered rock, and the wear of the drill teeth is also serious.

Method used

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  • Drill buckets and rotary drilling rigs
  • Drill buckets and rotary drilling rigs

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Below in conjunction with accompanying drawing, each preferred embodiment of the present invention is described further:

[0024] See figure 1 , which shows the structure of the drill bucket provided by the embodiment of the present invention. The drill bucket includes:

[0025] Cylinder (not shown in the figure);

[0026] The lower bottom 1 is arranged at the bottom of the cylinder, and the bottom surface of the lower bottom 1 is provided with a drill tooth 2 and a rotary cutting part 3;

[0027] The rotary cutting part 3 is rotatably installed on the lower bottom 1, and the rotation axis is arranged along the radial direction of the cylinder;

[0028] The rotary cutter 3 is provided with cutting teeth 31 , and the top ends of the cutting teeth 31 are higher than the top ends of the drill teeth 2 .

[00...

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Abstract

The invention discloses a drilling bucket and a rotary drilling rig. The drilling bucket comprises a barrel and a base arranged at the bottom of the barrel. Drilling teeth and rotary cutting portions are arranged on the bottom face of the base. The rotary cutting portions are arranged on the base in a rotatable mode, and rotation axes are distributed in the radial direction of the barrel. The rotary cutting portions are provided with cutting teeth, and the top end of each cutting tooth is higher than that of the corresponding drilling tooth. The drilling bucket is wide in application range, and has high drilling efficiency to hard soil and decayed rocks. In addition, the drilling bucket further has the advantages that the drilling tooth abrasion degree is low, and service life is long.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a drilling bucket and a rotary drilling rig. Background technique [0002] Rotary drilling rig is a kind of construction machine suitable for hole forming in building foundation engineering. Its principle is to drive the drill pipe by the power head to realize the rotary cutting of rock and soil, and then lift it to the outside of the hole to unload the soil. into holes. Rotary drilling rigs are not only suitable for the construction of sandy soil, cohesive soil, silty soil and other soil layers, but also for the construction of rock layers, and are widely used in various foundation constructions such as cast-in-situ piles, continuous walls, and foundation reinforcement. As an efficient and advanced hole-forming equipment, the rotary drilling rig has outstanding advantages when drilling large-diameter holes such as high-speed railways and bridges. [0003] At present, rota...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/43E21B27/00
Inventor 于兴哲张伟任灿
Owner BEIJING SANY HEAVY MASCH CO LTD
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