CN206889003U - A kind of roadway support anti-loosening anchor rod - Google Patents
A kind of roadway support anti-loosening anchor rod Download PDFInfo
- Publication number
- CN206889003U CN206889003U CN201720782099.4U CN201720782099U CN206889003U CN 206889003 U CN206889003 U CN 206889003U CN 201720782099 U CN201720782099 U CN 201720782099U CN 206889003 U CN206889003 U CN 206889003U
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- section
- anchor pole
- locking
- bolt body
- diameter
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- 238000004873 anchoring Methods 0.000 claims abstract description 19
- 239000003245 coal Substances 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000008093 supporting effect Effects 0.000 abstract description 5
- 239000011435 rock Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Road Signs Or Road Markings (AREA)
Abstract
The utility model discloses a kind of roadway support anti-loosening anchor rod,Bolt body stretches into tunnel coal seam end and is provided with anchor pole head,Anchor pole cephalic par is arranged with locking cap,The slurries that the outer circumference surface of bolt body is provided with helical structure accommodate runner,In bolt body multiple antiratchetting grooves are provided with close to the position of bolthole outer wall,Anti- porosity is provided tiltedly with the coal seam of tunnel,Locking bar is provided with anti-porosity,The end of locking bar is provided with the anti-pinecone,The anti-pinecone is fastened in the antiratchetting groove of bolt body,Anchoring slurries are filled after anchoring in bolthole,The utility model is on the basis of existing anchor pole,In the end set anchor pole head of anchor pole,And anchor pole head is arranged to pyramidal structure,Simultaneously locking cap is prepared for anchor pole head,After anchoring,Anchor pole head is fastened in locking cap,And locking cap understands tensioner in bolthole under the pretightning force of anchor pole head,The problem of can effectively preventing the pretightning force of anchor pole from declining,And then prevent anchor pole from loosening,Improve supporting effect.
Description
Technical field
A kind of roadway support anti-loosening anchor rod is the utility model is related to, belongs to roadway support mooring rod technique field.
Background technology
At present, as the continuous development of colliery engineering, underground support technology are also constantly improved, underground coal mine anchor pole
Support technology is an advanced Roadway Support Technology, has construction is simple, supporting is reliable, strong adaptability, remarkable in economical benefits
The features such as.Suspension roof support be by it anchor in the range of rock stratum High strength bolt reinforce and apply certain pretightning force, will push up
Plate pressure itself and support earth pressure are delivered to the active support means in the stable rock stratum in top plate deep, in the action of compressive stress of anchor pole
Under, its anchor in the range of rock stratum compressed, the stratification in rock stratum, the discontinuity surface such as crack is by jam-packed and densification, so as to pine
Dissipate rock stratum and plane of weakness forms carrier bar under its elastic compression, realize the supporting to coal mine roadway.
Current anchor structure is typically fairly simple, and usually a High strength bolt is directly protruding into bolthole, then
Nut is tightened in slip casting, and the anchor structure of this structure is simple, but in the roadway support of some soft rocks, anchor pole holds very much after anchoring
Easily loosen, start crack after long-time, in the course of time, the pretightning force of anchor pole declines, and anchoring property declines, and then causes lane
Further loosening occurs in road, and is thusly-formed vicious circle, ultimately results in anchor rod anchored failure, under the stress of roadway surrounding rock, lane
Road soft rock such as occurs caving in the danger, therefore, is required further improvement for the structure of the anchor pole of special occasions, to prevent anchoring
Loosening problem.
The content of the invention
The utility model is directed to existing technical problem, there is provided a kind of roadway support anti-loosening anchor rod, it is therefore an objective to ensure anchor
Bar has anti-loosing effect after anchoring, improves anchor force, intends to solve the problem of prior art is present.
To achieve the above object, the utility model provides following technical scheme：A kind of roadway support anti-loosening anchor rod, it is wrapped
Include bolt body, locking bar and locking cap, it is characterised in that the end set for stretching into tunnel coal seam of the bolt body has anchor
Head, the end of the anchor pole head are arranged with locking cap, and the locking cap stopper, which enters in the bolthole in tunnel coal seam, to be set, the anchor
The slurries that helical structure is provided with the outer circumference surface of bar body accommodate runner, and the outer end of the bolt body is provided with locking screw
Mother, cushion block is provided between the locking nut and wall, is set in the bolt body close to the position of bolthole outer wall
There are multiple antiratchetting grooves, anti-porosity is tiltedly installed with the tunnel coal seam, locking bar is provided with the anti-porosity, it is described locking
The end set of bar has the anti-pinecone, and the anti-pinecone is fastened in the antiratchetting groove of the bolt body, the bolthole after anchoring
Inside fill anchoring slurries.
Further, preferably, the anchor pole head includes locking buckle section and conical section, the big end connection of the conical section
The locking buckle section, the diameter of the locking buckle section are more than the diameter of the bolt body, the conical section and locking card
The opening that multiple triangles are provided with the axial direction of section is detained, and the tip of triangle is set towards locking buckle section.
Further, preferably, the locking cap includes preceding guide section, clamp segment and necking section, wherein, it is described it is leading to
Section is arranged on the front end of pinching end, and the necking section is arranged on the rear end of pinching end, and the preceding guide section is conical structure, with
Just locking cap is oriented to and filled in bolthole, the clamp segment is also conical structure, and clamp segment is close to the one of preceding guide section
Hold as bigger diameter end, form U-shaped cavity between the preceding guide section, clamp segment and necking section, the opening diameter at the necking section
More than the diameter of the smallest end of the conical section of anchor pole head, it is straight that the opening diameter at the necking section is less than the locking buckle section
Footpath.
Further, preferably, the locking cap is the integral structure that spring steel plate is converted into.
Further, preferably, the width that slurries accommodate runner is 5-10mm, depth is not more than the 1/ of bolt body diameter
4, and not less than the 1/6 of bolt diameter.
Compared with prior art, the beneficial effects of the utility model are：
The utility model in the end set anchor pole head of anchor pole, and anchor pole head is set on the basis of existing anchor pole
For pyramidal structure, while locking cap is prepared for anchor pole head, after anchoring, anchor pole head is fastened in locking cap, and locking cap is in anchor
Under the pretightning force of head can tensioner in bolthole, the problem of can effectively preventing the pretightning force of anchor pole from declining, and then prevent anchor
Bar loosens, and improves supporting effect.
Brief description of the drawings
Fig. 1 is a kind of anchoring mounting structure schematic diagram of roadway support anti-loosening anchor rod of the present utility model；
Fig. 2 is the cooperation mounting structure schematic diagram of locking cap of the present utility model；
Wherein, 1, tunnel coal seam, 2, locking cap, 20, preceding guide section, 21, clamp segment, 22, necking section, 3, anchor pole head, 30,
Locking buckle section, 31, conical section, 4, bolt body, 5, bolthole, 6, slurries accommodate runner, 7, locking bar, 8, antiratchetting groove, 9,
Plug-hole is starched, and 10, anchor pole fixing nut, 11, anchor pole cushion block, 12, the anti-pinecone, 13, opening.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of roadway support anti-loosening anchor rod, it includes
Bolt body 4, locking bar 7 and locking cap 2, it is characterised in that the end set for stretching into tunnel coal seam of the bolt body 4 has
Anchor pole first 3, the end of the anchor pole first 3 are arranged with locking cap 2, and the locking cap 2, which is filled in the bolthole 5 in tunnel coal seam, to be set
Put, the slurries that helical structure is provided with the outer circumference surface of the bolt body 4 accommodate runner 6, the outer end of the bolt body 4
Locking nut 10 is provided with, is provided with cushion block 11 between the locking nut 10 and wall, close to anchor in the bolt body 4
The position of rod aperture outer wall is provided with multiple antiratchetting grooves 8, and anti-porosity is tiltedly installed with the tunnel coal seam, is set in the anti-porosity
Locking bar 7 is equipped with, the end set of the locking bar 7 has the anti-pinecone 12, and the anti-pinecone is fastened on the anti-of the bolt body
In loose groove 8, anchoring slurries are filled after anchoring in the bolthole.
In the present embodiment, as shown in Fig. 2 the anchor pole first 3 includes locking buckle section 30 and conical section 31, the taper
The big end of section 31 connects the locking buckle section 30, and the diameter of the locking buckle section 30 is more than the diameter of the bolt body 4,
The conical section 31 and the opening 13 that multiple triangles are provided with the axial direction of locking buckle section 30, and the sophisticated direction of triangle
Locking buckle section is set.
In addition, such as Fig. 2, the locking cap includes preceding guide section 20, clamp segment 21 and necking section 22, wherein, it is described leading
The front end of pinching end is arranged on to section 20, the necking section 22 is arranged on the rear end of pinching end, and the preceding guide section 20 is circular cone
Shape structure, filled in so as to which locking cap is oriented in bolthole, the clamp segment is also conical structure, and clamp segment is close to leading
It is bigger diameter end to one end of section, U-shaped cavity, the necking is formed between the preceding guide section 20, clamp segment 21 and necking section 22
The opening diameter at section place is more than the diameter of the smallest end of the conical section of anchor pole head, described in the opening diameter at the necking section is less than
Locking buckle section diameter.
It is a preferred embodiment to ensure the rigidity of locking cap, the locking cap is the one that spring steel plate is converted into
Formula structure.Meanwhile in order to further such that anchoring effect of the anchor pole after anchoring, as a preferred embodiment, slurries accommodate
The width of runner is 5-10mm, and depth is not more than the 1/4 of bolt body diameter, and not less than the 1/6 of bolt diameter.
When being anchored using the utility model anchor pole, locking cap is filled in anchor hole using specialist tools first,
Then anchor pole is stretched into bolthole, and firmly anchor pole head is pushed into locking cap, be drilled with afterwards according to the position of anchor pole locking
Hole, then the locking bar for being provided with the anti-pinecone is stretched into, the anti-pinecone is fastened on locking groove location, and with swelling agent by anti-porosity
Shut, grouting behind shaft or drift lining complete anchoring to anchor pole.
The utility model in the end set anchor pole head of anchor pole, and anchor pole head is set on the basis of existing anchor pole
For pyramidal structure, while locking cap is prepared for anchor pole head, after anchoring, anchor pole head is fastened in locking cap, and locking cap is in anchor
Under the pretightning force of head can tensioner in bolthole, the problem of can effectively preventing the pretightning force of anchor pole from declining, and then prevent anchor
Bar loosens, and improves supporting effect.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of roadway support anti-loosening anchor rod, it includes bolt body, locking bar and locking cap, it is characterised in that the anchor
The end set for stretching into tunnel coal seam of bar body has anchor pole head, and the end of the anchor pole head is arranged with locking cap, described locking
Cap stopper, which enters in the bolthole in tunnel coal seam, to be set, and the slurries that helical structure is provided with the outer circumference surface of the bolt body accommodate
Runner, the outer end of the bolt body is provided with locking nut, cushion block is provided between the locking nut and wall, described
The position of bolthole outer wall is provided with multiple antiratchetting grooves in bolt body, is tiltedly installed with the tunnel coal seam locking
Hole, locking bar is provided with the anti-porosity, the end set of the locking bar has the anti-pinecone, and the anti-pinecone is fastened on described
In the antiratchetting groove of bolt body, anchoring slurries are filled after anchoring in the bolthole.
A kind of 2. roadway support anti-loosening anchor rod according to claim 1, it is characterised in that：The anchor pole head includes locking
Buckle section and conical section, the big end of the conical section connect the locking buckle section, and the diameter of the locking buckle section is more than institute
State the diameter of bolt body, the conical section and the opening that multiple triangles are provided with the axial direction of locking buckle section, and triangle
The tip of shape is set towards locking buckle section.
A kind of 3. roadway support anti-loosening anchor rod according to claim 2, it is characterised in that：The locking cap includes leading
To section, clamp segment and necking section, wherein, the preceding guide section is arranged on the front end of pinching end, and the necking section is arranged on clamping
The rear end at end, the preceding guide section are conical structure, are filled in so as to which locking cap is oriented in bolthole, the clamp segment is also
Conical structure, and clamp segment is bigger diameter end close to one end of preceding guide section, between the preceding guide section, clamp segment and necking section
Form U-shaped cavity, the opening diameter at the necking section is more than the diameter of the smallest end of the conical section of anchor pole head, the necking section
The opening diameter at place is less than the locking buckle section diameter.
A kind of 4. roadway support anti-loosening anchor rod according to claim 2, it is characterised in that：The locking cap is Elastic Steel
The integral structure that plate is converted into.
A kind of 5. roadway support anti-loosening anchor rod according to claim 1-4 any one, it is characterised in that：Slurries accommodate
The width of runner is 5-10mm, and depth is not more than the 1/4 of bolt body diameter, and not less than the 1/6 of bolt diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782099.4U CN206889003U (en) | 2017-06-30 | 2017-06-30 | A kind of roadway support anti-loosening anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782099.4U CN206889003U (en) | 2017-06-30 | 2017-06-30 | A kind of roadway support anti-loosening anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889003U true CN206889003U (en) | 2018-01-16 |
Family
ID=61299046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782099.4U Expired - Fee Related CN206889003U (en) | 2017-06-30 | 2017-06-30 | A kind of roadway support anti-loosening anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889003U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219683A (en) * | 2019-06-10 | 2019-09-10 | 华北科技学院 | A kind of coal mine clamped protection unit of sloping mining approach alley way anchor |
| CN111255494A (en) * | 2020-02-25 | 2020-06-09 | 中铁隆昌铁路器材有限公司 | Lengthened anti-drop prestressed hollow grouting anchor rod and supporting method thereof |
| CN112459818A (en) * | 2020-12-07 | 2021-03-09 | 贵州理工学院 | Special anti-loosening anchor rod for roadway support |
-
2017
- 2017-06-30 CN CN201720782099.4U patent/CN206889003U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219683A (en) * | 2019-06-10 | 2019-09-10 | 华北科技学院 | A kind of coal mine clamped protection unit of sloping mining approach alley way anchor |
| CN111255494A (en) * | 2020-02-25 | 2020-06-09 | 中铁隆昌铁路器材有限公司 | Lengthened anti-drop prestressed hollow grouting anchor rod and supporting method thereof |
| CN112459818A (en) * | 2020-12-07 | 2021-03-09 | 贵州理工学院 | Special anti-loosening anchor rod for roadway support |
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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: 20180116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |