CN208473912U - A kind of mining self-drilling type umbrella grouted anchor bar - Google Patents
A kind of mining self-drilling type umbrella grouted anchor bar Download PDFInfo
- Publication number
- CN208473912U CN208473912U CN201821057306.0U CN201821057306U CN208473912U CN 208473912 U CN208473912 U CN 208473912U CN 201821057306 U CN201821057306 U CN 201821057306U CN 208473912 U CN208473912 U CN 208473912U
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- China
- Prior art keywords
- anchor
- umbrella
- disc
- rod
- bolt body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of mining self-drilling type umbrella grouted anchor bars, including upper bolt body and the body of rod that casts anchor, gunniting hole is provided on upper bolt body and the body of rod that casts anchor, the upper end of upper bolt body is connected with anchor head, the lower end of upper bolt body is fixedly connected with upper sleeve, and the outside screw of upper sleeve is connected with top bottom-disc；The cast anchor upper end of the body of rod is fixedly connected with lower sleeve portion, and lower sleeve portion covers on the outside of upper sleeve, and the outside screw of lower sleeve portion is connected with low bottom-disc；Top bottom-disc is circumferentially uniformly hinged with several umbrella wings, and low bottom-disc is circumferentially hinged with support with the corresponding position of the umbrella wing, supports hinged with the corresponding umbrella wing.Anchor pole is pierced into rock mass based on anchor rod supporting theory, using umbrella frame principle by the utility model well, and drilling, slip casting and anchoring is integrated, is reduced construction procedure, is enhanced anchoring effect.
Description
Technical field
The utility model belongs to roadway support field, and in particular to a kind of mining self-drilling type umbrella grouted anchor bar.
Background technique
As pit mining is gradually extended to deep, drift section is gradually increased, and surrouding rock stress problem is more prominent, if
Roadway support is carried out using commonsense method, need first to drill carries out relevant support work again, and project amount is relatively large, consumption
Material is relatively more, and the amount of labour is relatively large, and economy is relatively poor with safety issue.
Suspension roof support has become most important support pattern, the increasingly attention by numerous scientific research personnel, this supporting
Advantage is good, advantage of lower cost of Effects of Supporting etc., produces tremendous influence and work to the high-yield and high-efficiency construction in mine
With, intuitively the problems of present suspension roof support can be analyzed by the research to suspension roof support construction method,
To provide easier method for roadway support design.
Under prior art conditions, construction factor is the key link for directly affecting Effects of Supporting.Construction personnel couple
Anchor rod supporting theory whether be familiar with, to support theory understand systematicly whether enough, to rockbolt installation quality whether in place, whether can
Fully according to design and construction etc., the effect of supporting is all affected.If the anchor pole that can simply construct can be designed, subtract
Few construction procedure, can be good at control construction quality this problem can also substantially improve.
And self-drilling type umbrella grouted anchor bar, it is using umbrella frame principle that anchor pole is fine based on anchor rod supporting theory
Piercing rock mass, by drilling, slip casting and anchoring it is integrated, reduce construction procedure, enhance anchoring effect.
Summary of the invention
The purpose of the utility model is to provide one kind based on anchor rod supporting theory, using umbrella frame principle by anchor pole
It is pierced into rock mass well, drilling, slip casting and anchoring is integrated, construction procedure is reduced, the mining self-drilling type of anchoring effect is enhanced
Umbrella grouted anchor bar.
To achieve the above object, the technical solution adopted in the utility model is a kind of mining self-drilling type umbrella grouted anchor bar,
Including upper bolt body and the body of rod that casts anchor, gunniting hole, the upper end connection of upper bolt body are provided on upper bolt body and the body of rod that casts anchor
There is anchor head, the lower end of upper bolt body is fixedly connected with upper sleeve, and the outside screw of upper sleeve is connected with top bottom-disc；Lower bolt
The upper end of body is fixedly connected with lower sleeve portion, and lower sleeve portion covers on the outside of upper sleeve, and the outside screw of lower sleeve portion is connected with
Low bottom-disc；Top bottom-disc is circumferentially uniformly hinged with several umbrella wings, and low bottom-disc is circumferentially hinged with branch with the corresponding position of the umbrella wing
Support supports hinged with the corresponding umbrella wing.
The longitudinal center line of the upper sleeve and lower sleeve portion is on the same line.
The method anchored using the mining self-drilling type umbrella grouted anchor bar, comprising the following steps:
Step 1: first pore-forming, then mining self-drilling type umbrella grouted anchor bar is closed up be put into hole, lower part is first given after being put into
One inward force of sleeve, makes umbrella chord open certain angle, again to body of rod application of casting anchor after umbrella chord opens certain angle
Outside pulling force makes top bottom-disc and upper sleeve generate outside movement tendency, to promote umbrella anchored end (the umbrella wing) complete
It opens；
Step 2: after umbrella anchored end (the umbrella wing) fully opens, using upper bolt body, the body of rod that casts anchor, upper sleeve and under
Sleeve hollow characteristic in portion's carries out slip casting as slip casting channel.
The beneficial effect that the utility model generates is: mining self-drilling type umbrella grouted anchor bar is used in the utility model, with
Based on anchor rod supporting theory, anchor pole is pierced into rock mass well using umbrella frame principle, by drilling, slip casting and anchoring collection one
Body reduces construction procedure, enhances anchoring effect.Compared with traditional anchor rod anchored technology, relative to previous suspension roof support skill
Art greatly improves working efficiency, and construction is simple, anchor force is stronger, substantially increases anchoring effect using umbrella skeleton, significantly
Human resources have been saved, the working time is shortened.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the mining self-drilling type umbrella grouted anchor bar of the utility model.
Specific embodiment
The utility model is described further combined with specific embodiments below, but the protection scope of the utility model is unlimited
In this.
Embodiment 1
As shown in Figure 1, a kind of mining self-drilling type umbrella grouted anchor bar, including upper bolt body 1, cast anchor the body of rod 2, connector sleeve
11, stop grouting plug 12, backing plate 13, nut 14 and it is common lengthen grouted anchor bar 15, be provided on upper bolt body 1 and the body of rod 2 that casts anchor
Gunniting hole 3, the upper end of upper bolt body 1 are connected with anchor head 4, and the lower end of upper bolt body 1 is fixedly connected with upper sleeve 5, top set
The outside screw of 5 upper ends of cylinder is connected with top bottom-disc 6；The cast anchor upper end of the body of rod 2 is fixedly connected with lower sleeve portion 7, and 7 sets of lower sleeve portion
In 5 outside of upper sleeve, the outside screw of 7 lower end of lower sleeve portion is connected with low bottom-disc 8；Top bottom-disc 6 is circumferentially uniformly hinged with
Several umbrella wings 9, low bottom-disc 8 are circumferentially hinged with support 10 with the corresponding position of the umbrella wing 9, and support 10 is cut with scissors with the corresponding umbrella wing 9
It connects.
The longitudinal center line of the upper sleeve 5 and lower sleeve portion 7 is on the same line.Upper bolt body 1 and upper sleeve 5
Between, between upper sleeve 5 and lower sleeve portion 7, it is homogeneous intercommunicated between lower sleeve portion 7 and the body of rod 2 that casts anchor.The body of rod 2 that casts anchor is last
End can connect common lengthening grouted anchor bar 15 by connector sleeve 11 as needed.
The upper bolt body 1 casts anchor the body of rod 2 and the common anchor pole 15 that lengthens has continuous corrugated thread, the corrugated thread
With successional international standard, it can replace drilling rod and complete drilling and without extracting.
The method anchored using the mining self-drilling type umbrella grouted anchor bar of the utility model, comprising the following steps:
Step 1: first pore-forming, then mining self-drilling type umbrella grouted anchor bar is closed up be put into hole, lower part is first given after being put into
One inward force of sleeve, makes umbrella chord open certain angle, again to body of rod application of casting anchor after umbrella chord opens certain angle
Outside pulling force makes top bottom-disc and upper sleeve generate outside movement tendency, to promote umbrella anchored end (the umbrella wing) complete
It opens；
Step 2: utilizing upper bolt body 1, the body of rod 2 that casts anchor, 5 and of upper sleeve after umbrella anchored end (the umbrella wing) fully opens
The hollow characteristic of lower sleeve portion 7 carries out slip casting as slip casting channel.
Stop grouting plug can guarantee stronger grouting pressure, so that slip casting process be enable adequately to fill up gap, make to be crushed
Rock mass is fixed.Backing plate, nut in deep-level country rock stress transfer to peripheral wall country rock, can will reach country rock and anchor pole supporting each other
Purpose.The effect of high-intensitive connector sleeve is to make self drilling anchor can be to lengthen in drilling, and Optimizing construction technique significantly can be used for
Small space construction.The function of this is mining self-drilling type umbrella grouted anchor bar quaternity can make it under all kinds of wall rock conditions
Guarantee the effect of anchoring with slip casting when construction.
Claims (2)
1. a kind of mining self-drilling type umbrella grouted anchor bar, it is characterised in that: including upper bolt body and cast anchor the body of rod, upper bolt body and
It casts anchor and is provided with gunniting hole on the body of rod, the upper end of upper bolt body is connected with anchor head, and the lower end of upper bolt body is fixedly connected with
Portion's sleeve is fixedly connected with top bottom-disc on the outside of upper sleeve；The cast anchor upper end of the body of rod is fixedly connected with lower sleeve portion, lower part set
Cylinder covers on the outside of upper sleeve, and low bottom-disc is fixedly connected on the outside of lower sleeve portion；Top bottom-disc is circumferentially uniformly hinged with several
A umbrella wing, low bottom-disc are circumferentially hinged with support with the corresponding position of the umbrella wing, support hinged with the corresponding umbrella wing.
2. mining self-drilling type umbrella grouted anchor bar as described in claim 1, it is characterised in that: the upper sleeve and lower part set
The longitudinal center line of cylinder is on the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057306.0U CN208473912U (en) | 2018-07-05 | 2018-07-05 | A kind of mining self-drilling type umbrella grouted anchor bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821057306.0U CN208473912U (en) | 2018-07-05 | 2018-07-05 | A kind of mining self-drilling type umbrella grouted anchor bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473912U true CN208473912U (en) | 2019-02-05 |
Family
ID=65213008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821057306.0U Expired - Fee Related CN208473912U (en) | 2018-07-05 | 2018-07-05 | A kind of mining self-drilling type umbrella grouted anchor bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208473912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643951A (en) * | 2018-07-05 | 2018-10-12 | 河南理工大学 | A kind of mining self-drilling type umbrella grouted anchor bar and anchoring process |
-
2018
- 2018-07-05 CN CN201821057306.0U patent/CN208473912U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643951A (en) * | 2018-07-05 | 2018-10-12 | 河南理工大学 | A kind of mining self-drilling type umbrella grouted anchor bar and anchoring process |
| CN108643951B (en) * | 2018-07-05 | 2024-02-23 | 河南理工大学 | Mining self-drilling umbrella-shaped grouting anchor rod and anchoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20190705 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |