Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Anchoring method for reaming drill bit and anchor rod

A technology of reaming bit and anchoring method, which is applied in the directions of drill bit, bolt installation, drilling equipment, etc., can solve problems such as poor anchoring effect, and achieve the effects of convenient operation, improving anchoring strength, and increasing axial tensile capacity.

Active Publication Date: 2017-01-18
CCTEG COAL MINING RES INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the diameter of the existing anchor hole is uniform, there is no diameter change feature, and the anchoring effect between the anchor rod and the anchor hole is poor

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
  • Anchoring method for reaming drill bit and anchor rod
  • Anchoring method for reaming drill bit and anchor rod
  • Anchoring method for reaming drill bit and anchor rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] Such as figure 1 , figure 2 and image 3 , a reaming drill bit provided by an embodiment of the present invention includes a casing 1, a guide rod 2 and a drilling bit (not shown in the figure), the front end of the casing 1 is provided with a guide rod hole 11, and the guide rod hole 11 is automatically The front end of the casing 1 extends to the inside, and the inner wall of the guide rod hole 11 is provided with a keyway 13 , and the keyway 13 is located in the middle of the guide rod hole 11 . On the outer wall of shell cover 1, be provided with blade groove 12 along axial direction, the groove width of blade groove 12 is less than the diameter of guide rod...

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 field of anchor net supporting and provides a reamer bit. The reamer bit comprises a shell sleeve, a guide rod and a drill bit. The front end of the shell sleeve is provided with a guide rod hole. The guide rod is inserted into the guide rod hole and is in key connection with the guide rod hole. The outer wall of the shell sleeve is provided with blade grooves. The front ends of the blade grooves extend to the interior of the rear end of the guide rod hole. A reaming blade is arranged in each blade groove. The reaming blades are hinged to the rear ends of the corresponding blade grooves. The cross section of the rear end of the guide rod and the cross section of the inner sides of the front ends of the reaming blades are in a wedge shape. The drill bit is arranged at the front end of the guide rod. The rear end of the shell sleeve is provided with connecting threads, and the connecting threads are used for connecting the rear end of the shell sleeve with a drill stem. On the basis of anchoring of an existing anchor rod, the reamer bit is used for cutting out an expanded hole section with a certain length in an initial hole section, the diameter of the expanded hole section is larger than that of the initial hole section, the expanded hole section supports anchoring agents bonded to the periphery of the anchor rod in the axial direction, and then the anchoring strength of the anchor rod is improved.

Description

technical field [0001] The invention relates to the field of anchor net support, in particular to a reaming drill bit and an anchoring method for an anchor rod. Background technique [0002] Anchor-mesh support is a safe and efficient main support method for coal mine roadways, and has been widely promoted and applied in coal mine roadways in my country. Anchor net support is to anchor one end of the anchor rod or anchor cable in the rock mass, and apply an axial pre-tightening force to the anchor rod outside the rock mass, so as to restrain the deformation, separation, expansion and slippage of the surrounding rock of the roadway. . [0003] In the existing anchor net support construction, the anchoring process of the anchor rod is generally as follows: first, use a drill bit matching the diameter of the anchor rod to drill an anchor hole with a uniform diameter on the rock mass at the installation position of the anchor rod, and inject A certain depth of anchoring agent ...

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 Patents(China)
IPC IPC(8): E21B10/32E21D20/02
Inventor 林健杨景贺邵培森汪占领范明建王正胜
Owner CCTEG COAL MINING RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com