Unlock instant, AI-driven research and patent intelligence for your innovation.

Threaded-fit type multi-power combination drilling tool, manufacturing method and structural pile

A technology of power drilling tools and compound drilling, which is used in drilling equipment, drill bits, sheet pile walls, etc.

Pending Publication Date: 2019-08-16
李广信
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a thread fit multi-power composite drilling tool, a preparation method and a type pile, so as to solve the technical problems existing in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Threaded-fit type multi-power combination drilling tool, manufacturing method and structural pile
  • Threaded-fit type multi-power combination drilling tool, manufacturing method and structural pile
  • Threaded-fit type multi-power combination drilling tool, manufacturing method and structural pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] This embodiment provides a threaded multi-power composite drilling tool, which includes: a lower power drilling tool, a middle power drilling tool and an upper power drilling tool coaxially arranged in sequence; the lower power drilling tool, the middle power drilling tool The upper and upper power drilling tools are respectively equipped with a power mechanism, and the power mechanism can independently drive its corresponding drilling tool to rotate; especially the internal screw (internal thread structure 221) of the middle sleeve drilling tool is screwed to the external screw (external thread structure 221) of the central drilling tool. In the structure 121), the relationship between the nut and the screw rod is formed between the two. Driven by their respective power mechanisms, the middle sleeve drilling tool can do up and down reciprocating / single rotary extrusion in the soil extrusion area of ​​the pile hole, and the inner and outer screw structures rotate the cent...

Embodiment 2

[0100] combine Figure 9 to Figure 17 and Figures 18 to 26 As shown, the second embodiment also provides two preparation methods for preparing the type pile 4 based on the threaded multi-dynamic composite drilling tool for different site conditions, which include: according to the requirements of the stratum for the construction method, the above The power drilling tool 1, the middle power drilling tool 2 and the lower power drilling tool 3 are respectively drilled to their respective design depths, so as to form multiple rounded stepped drilling holes; during the drilling process of each drilling tool, the middle sleeve drilling tool 22 can be used for up and down reciprocating / single rotary extrusion in the soil extrusion area of ​​the pile hole, to eliminate the soil on the rotary row of the central drilling tool 12 for multiple / single extrusion, extrusion and expansion until the overall pile hole wall is compacted up and down reach a relative balance. Start the concrete...

Embodiment 3

[0132] combine Figure 27 to Figure 30 As shown, this embodiment also provides a type pile 4 prepared according to the threaded multi-power composite drilling tool, which includes: a main pile body 41; the main pile body 41 is provided with at least two rounded steps Shaped body 42; the included angle range between the extended line of the busbar at the variable diameter of the rounded stepped shaped body 42 and the central axis of the main pile body 41 is: 5°-90°. For example: the reduced diameter of the rounded stepped body 42 is located at the shallow part of the pile body, and the included angle between the extension line of the generatrix at the reduced diameter of the rounded stepped body 42 and the central axis of the main pile body 41 is The range value should be 30°~45°. Another example: the diameter reduction of the rounded stepped body 42 is located in the deep part of the pile body, and the included angle between the extension line of the generatrix at the diamete...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of civil engineering, and in particular to a threaded-fit type multi-power combination drilling tool, a manufacturing method and a structural pile. The threaded-fit type multi-power combination drilling tool includes a lower power drilling tool, a middle power drilling tool and an upper power drilling tool; an external thread structure is arranged on the external side of a core tube of the upper power drilling tool, and the external thread structure is used as spiral blades of the upper power drilling tool; the middle power drilling tool is composedof a drilling tool main body with the combined function of squeezing and discharging soils, an internal thread structure is arranged in the internal side of the core tube of the drilling tool main body of the middle power drilling tool, and the internal thread structure is matched with the external thread structure to form threaded connection; under the driving of an equipped power mechanism, themiddle power drilling tool can vertically and rotationally squeeze the soils in a pile hole soil squeezing region in an up-down back-forth / singular mode, so rotationally-discharged soils of the upperpower drilling tool are squeezed and expanded for multiple times / one time to be collected until the upper and lower compactness of the whole pile hole walls reaches relative balance, and the lower power drilling tool is composed of a drilling tool main body with the combined function of squeezing and discharging the soils, or the function of threaded soil squeezing, or the function of dischargingthe soils.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a screw fit type multi-power composite drilling tool, a preparation method and a type pile. Background technique [0002] In the soft foundation treatment of building structures or bridges, ports, railways, highways, airports, water conservancy and hydropower facilities, etc., the foundation soil that needs to be treated can be generally divided into weak sites from shallow to deep according to the change law of equivalent shear wave velocity. Soil, medium-soft site soil, medium-hard site soil, hard site soil; foundation soil from shallow to deep, and the change law of compactness from loose to dense gradually reflects the theory of rock and soil deposition. According to the softness and hardness of the site soil and the distribution of each soil layer, the foundation soil can be simply divided into the compacted soil area (weak site soil, medium soft site soil, except ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/26E21B10/42E02D5/36
CPCE02D5/36E21B10/26E21B10/42
Inventor 李广信
Owner 李广信