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

High-strength integral composite material anchor shaft

A composite material, one-piece technology, applied in the field of high-strength one-piece composite material bolts, can solve problems such as poor bolt strength, nut cracking, shear fracture at thread joints, etc., to achieve safe and reliable cost, improve strength, The effect of high product strength

Inactive Publication Date: 2007-11-28
SHANXI COKING COAL GROUP
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem of poor strength of the existing composite material anchor rod due to the split structure of the threaded fit between the rod body and the nut, and the unreasonable formula of the composite material, and the frequent occurrence of shear fracture at the thread joint or the screw cap. To solve problems such as circumferential cracking, a high-strength integrated composite material anchor rod is provided

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
  • High-strength integral composite material anchor shaft
  • High-strength integral composite material anchor shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The high-strength integrated composite material anchor rod is composed of a threaded composite material rod body 1, a nut 2 and a tray 3, and the nut 2 is directly molded on the end of the rod body 1; the composite material constituting the nut is in the following weight percentage Composition of raw materials: short glass fiber 35%, 191# or 196# resin 30%, copper peroxide (as a curing agent) 4%, cobalt styrene isozincate (as an accelerator) 3%, calcium carbonate (as a filler ) 20%, aluminum hydroxide (as a flame retardant) 6%, antistatic agent 2%. Wherein, cobalt isozincate styrene is a solution of cobalt isozincate in styrene in any proportion, for example, 50% cobalt isozincate in styrene is used.

[0014] In order to further improve the strength of the anchor rod, the composite material constituting the rod body is made of the following raw materials in weight percentage: 50% of continuous glass fiber bundles, 10% of short glass fibers, 25% of 191# or 196# resin, co...

Embodiment 2

[0017] The high-strength integrated composite material anchor rod is composed of a threaded composite material rod body 1, a nut 2 and a tray 3, and the nut 2 is directly molded on the end of the rod body 1; the composite material constituting the nut is in the following weight percentage Composition of raw materials: short glass fiber 42%, 191# or 196# resin 30%, methyl ethyl copper peroxide (as curing agent) 2%, cobalt styrene isozincate (as accelerator) 3%, calcium carbonate (as filler ) 15%, aluminum hydroxide (as a flame retardant) 6%, antistatic agent 2%. Wherein, cobalt isozincate styrene is a solution of cobalt isozincate in styrene in any proportion, for example, 30% cobalt isozincate in styrene is used.

[0018] In order to further improve the strength of the anchor rod, the composite material constituting the rod body is made of the following raw materials in weight percentage: 53% of continuous glass fiber bundles, 5% of short glass fibers, 30% of 191# or 196# resi...

Embodiment 3

[0021] The high-strength integrated composite material anchor rod is composed of a threaded composite material rod body 1, a nut 2 and a tray 3, and the nut 2 is directly molded on the end of the rod body 1; the composite material constituting the nut is in the following weight percentage Composition of raw materials: short glass fiber 35%, 191# or 196# resin 35%, copper peroxide (as curing agent) 2%, cobalt styrene isozincate (as accelerator) 3%, calcium carbonate (as filler ) 16%, aluminum hydroxide (as a flame retardant) 7%, antistatic agent 2%. Wherein, cobalt isozincate styrene is a solution of cobalt isozincate in styrene in any proportion, for example, 60% cobalt isozincate in styrene is used.

[0022] In order to further improve the strength of the anchor rod, the composite material constituting the rod body is made of the following raw materials in weight percentage: 57% of continuous glass fiber bundles, 8% of short glass fibers, 27% of 191# or 196# resin, copper per...

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 an integrated composite anchor with high intensity, which solves the problem that because in prior composite anchor the bar is connected with the nut in screw thread fit with partial structure and the prescription of composite is not reasonable, the intensity of anchor is bad and it is broken at the connection position of screw thread by shear force or the nut is cracked in ring direction. It comprises composite bar body with screw thread, nut and pallet. The nut is molded to form at the end of bar directly. The composite constituting nut comprises 35%-42% of short glass fiber by wt, 30%-35% of 191# or 196# resin by wt, 2%-4% of methyl ethyl copper peroxide by wt, 3%-7% of isooctanoic cobalt styrene, 15%-20% of calcium carbonate by wt, 6%-12% of aluminum hydroxide by wt and 2%-6% of antistatic agent by wt. the invention can improve the intensity of composite anchor greatly. By using test for a long time, phenomena of shear breaking at the connection position of screw thread or ring crack of nut does not appear in the composite anchor.

Description

technical field [0001] The invention relates to a support device—a bolt used for mine shafts, highways, railway tunnels and side slope support, in particular to a high-strength integrated composite material anchor. Background technique [0002] Anchor is a support product for mine shafts, roads, railway tunnels and slopes. The anchor materials used in the past are mainly wood, bamboo and steel. Although wooden or bamboo anchors are light in weight and low in cost , but the strength is low, the support effect is poor, it is easy to rot, and the service life is short; although the steel anchor has high strength and good support effect, there are two major defects in the steel anchor, that is, it is extremely susceptible to corrosion and reduces the strength and Sparks were generated due to the collision between the cutting of the coal shearer and the bolt, which caused local gas explosions and brought safety hazards to mining production operations. [0003] Since the 1990s, a...

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): E21D21/00C08L101/00C08K7/14C08K5/14C08K3/26C08K3/22
Inventor 秦斌青郭勇义崔小朝侯水云王维虎王万冬
Owner SHANXI COKING COAL GROUP
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