Reamer

A technology of hole reamer and edge cutter, which is applied in the direction of drilling equipment, earthwork drilling, drill bits, etc. It can solve the problems of affecting construction efficiency, high cost, and inconvenient construction of rotary excavators, so as to reduce frequent replacement, facilitate production, and reduce The effect of the number of configurations

Active Publication Date: 2012-08-22
MCC5 GROUP CORP SHANGHAI
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the variety of pile diameters of the rotary drilling bored piles, the number of drill bits to be configured during the construction process is also large, the cost is high, and frequent replacement may be required, which affects the construction efficiency
[0003] Therefore there are above-mentioned inconveniences and problems in known rotary excavator construction

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
  • Reamer
  • Reamer
  • Reamer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] see now figure 1 with figure 2 , figure 1 It is a schematic plan view of the reamer device of the embodiment of the present invention, figure 2 It is a schematic diagram of the elevation of the reamer device of the embodiment of the present invention. As shown in the figure, the soil-cutting side knife 1 is made of hard alloy and is in the shape of an axe. One end is a soil-cutting end with a length of 20 cm and a thickness of 3 mm, and the other end is a connection end with a length of 15 cm and a thickness of 5 cm; The edge line of the soil cutting edge knife 1 is set to be parallel to the longitudinal axis of the drill bit 6;

[0025] Described dowel bar 2, one end is solidly welded with the connecting end of soil cutter 1, and the other end is provided with three piercing pin holes, and described dowel bar 2 is long 30cm, wide 8cm, high 8cm; Described dowel bar 2 can also be By inserting pins into pin holes at different positions, the size of the drilled hole ...

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 a reamer for a rotary drilling rig. The reamer comprises a soil edge cutter (1), a dowel bar (2) and a drill bit (6). The reamer is characterized in that the soil edge cutter (1) is of an axe shape; one end of the soil edge cutter (1) is used as a soil cutting end and has the length of 10 to 20cm and the thickness of 1 to 3mm; the other end of the soil edge cutter (1) is used as a connecting end and has the length of 5 to 15cm and the thickness of 3 to 7cm; one end of the dowel bar (2) is fixedly welded with the connecting end of the soil edge cutter (1); the other end of the dowel bar (2) is provided with a plurality of pin through holes; the dowel bar (2) has the length of 20 to 30cm, the width of 4 to 8cm and the height of 4 to 8cm; a fixing device (3) is welded at the end part of the drill bit (6); and the fixing device (3) is used for fixing the dowel bar (2) by enabling pins (4) to pass through the pin through holes (5). The reamer disclosed by the invention has the advantages of simple structure, convenience in manufacturing, convenience in operation, safety, reliability, high construction efficiency and low cost.

Description

technical field [0001] The invention relates to a hole reaming tool for a rotary drilling rig, in particular to a hole reamer used for the rotary drilling rig to enlarge a hole. Background technique [0002] The construction technology of rotary drilling bored pile is a new construction technology developed by absorbing the advantages of various hole-forming technology. From the installation, disassembly and use of drilling rigs, drill pipes and drill bits, it saves a lot of manpower, improves the degree of mechanization, reduces labor intensity, and thus speeds up the progress of the project; in terms of technology, it replaces the water medium to form holes and take soil process, greatly reducing slurry requirements and emissions. However, due to the variety of pile diameters of the rotary drilling bored piles, the number of drill bits to be configured during the construction process is also large, the cost is high, and frequent replacement may be required, which affects ...

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): E21B10/26E21B10/28
Inventor 蒋伟李仙鹤孙建王雪梅范宏
Owner MCC5 GROUP CORP SHANGHAI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap