A dry-type integral earth-taking device for foundation pillar piles

A soil-taking device and dry-type technology, which is applied in earth drilling, percussion drilling, rotary drilling, etc., can solve problems such as easy damage to equipment, dirty and messy construction sites, and low working efficiency of drilling rigs, and achieve Improve drilling efficiency and avoid mud cross flow

Active Publication Date: 2016-02-10
SHANGHAI JINTAI ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the former method, the discharged mud will pollute the construction site, resulting in a messy construction site; for the latter, the working efficiency of the drilling rig is low and the equipment is easily damaged

Method used

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  • A dry-type integral earth-taking device for foundation pillar piles
  • A dry-type integral earth-taking device for foundation pillar piles

Examples

Experimental program
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Embodiment Construction

[0016] Such as figure 1 with figure 2 As shown, a dry-type integral soil fetching device for foundation piles includes a cylinder 1 connected to the lower end of the drill pipe 2, and also includes: a hydraulic cylinder 3 whose cylinder end is fixedly connected to the drill pipe. Inside the rod 2, the end of the piston 6 leads into the cylinder 1, and the piston 6 is slidably connected in the cylinder 1.

[0017] The cylinder body 1 has an aspect ratio greater than 2:1.

[0018] In the dry-type integrated soil extraction device for pile pits on soft foundations, a hexagonal joint 3 is provided at the end connecting the cylinder body 1 and the drill pipe 2 , and a spring 4 is sleeved on the upper end thereof.

[0019] In the dry-type integrated soil fetching device for pile pits on soft ground, the outer surface of the cylinder body 1 is provided with threaded grooves.

[0020] In the dry-type integrated earth-taking device for pile pits on soft ground, the lower part of th...

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Abstract

The invention relates to a drill machine, in particular to a pile type integral soil taking device of a base pillar. The pile type integral soil taking device comprises a tube body connected at the lower end of a drill rod, and the pile type integral soil taking device further comprises a hydraulic cylinder, wherein a cylinder body end of the hydraulic cylinder is fixedly connected with the inside of the drill rod, a piston end of the hydraulic cylinder is led into the tube body, and a piston is slidingly connected in the tube body. The pile type integral soil taking device can fast finish pile hole construction of large-dimension pillars, and ensures the construction site to be dry and clean.

Description

technical field [0001] The invention relates to a drilling rig, in particular to a soil-taking device of a hydraulic drilling rig. Background technique [0002] At present, the hole diameter of the pile is increasing day by day, and holes with a diameter of 400-1200mm are already very common. For such a large-diameter hole, the traditional method is to use a drilling rig to break the underground mud and stone layers into pieces, fill them with water to form mud, and discharge the mud through the positive circulation system; or the drilling rig rotates and cuts the soil into pieces, Generally, the ratio between the cutting depth and the diameter of the working device cannot exceed 1:1, and the excavation depends on swinging the working device to throw out the mud. [0003] For the former method, the discharged mud will pollute the construction site, resulting in a messy construction site; for the latter, the working efficiency of the drilling rig is low and the equipment is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B3/00E21B27/00
Inventor 林坚
Owner SHANGHAI JINTAI ENG MACHINERY
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