CN105781598B - A kind of Extendable anchor rod - Google Patents
A kind of Extendable anchor rod Download PDFInfo
- Publication number
- CN105781598B CN105781598B CN201610146802.2A CN201610146802A CN105781598B CN 105781598 B CN105781598 B CN 105781598B CN 201610146802 A CN201610146802 A CN 201610146802A CN 105781598 B CN105781598 B CN 105781598B
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- Prior art keywords
- rod
- sleeve
- rod piece
- branch sleeve
- termination
- Prior art date
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000004873 anchoring Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
- E21D21/0046—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts formed by a plurality of elements arranged longitudinally
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0006—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by the bolt material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Piles And Underground Anchors (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention discloses a kind of Extendable anchor rod, including a body of rod and it is respectively arranged at pallet and the termination at the body of rod both ends, the pallet is detachably arranged in one end of the body of rod, and the termination is arranged at the other end of the body of rod by more than one fixing device；The body of rod includes at least two rod pieces being connected with each other, the connecting pin of the rod piece of described two interconnections is provided outside branch sleeve and expansion sleeve, the branch sleeve is coated on the outside at two rod piece connecting pins, and fixed by more than one fixing device and the rod piece, the expansion sleeve is coated on the other parts of rod piece；The rod piece is provided with a fixes sleeve by the side of proximal head, and the fixes sleeve is fixed by more than one fixing device and the rod piece and termination.The present invention can solve the problems, such as that current coal mine roadway cannot use long anchor pole and anchor-holding force of anchor bolt insufficient due to insufficient space.
Description
Technical field
This invention relates generally to a kind of anchor pole, in particular to a kind of Extendable anchor rod.
Background technology
With the development of mine bolt support technology, the application range of suspension roof support constantly expands, but under certain conditions,
The application of long anchor pole can be limited be subject to underground space.At present, China's coal-mine head-room is generally in 2.0~3.5m, for side
Just to construct, rock-bolt length is no more than 3m, when back broken thickness is larger, it is necessary to which longer anchor pole is safeguarded, anchor pole
Length requirement is in 4m~6m, to prevent there is roof fall accident.Clearly as the limitation of lane space, long anchor pole can not construct, can only
Top plate is controlled using anchor cable.But the elongation percentage of anchor cable is low, it is easy to fail when roadway deformation is larger, triggers roof fall
Accident.
Above- mentioned information is only used for strengthening the understanding of the background to the present invention, therefore it disclosed in the background section
It can include not forming the information to the prior art known to persons of ordinary skill in the art.
The content of the invention
A series of concept of reduced forms is introduced in Summary, this will in specific embodiment part into
One step describes in detail.The key that present invention part is not meant to attempt to limit technical solution claimed is special
Seek peace essential features, do not mean that the protection domain for attempting to determine technical solution claimed more.
A primary object of the present invention is at least one defect for overcoming the above-mentioned prior art, there is provided a kind of elongation percentage
High Extendable anchor rod.
For achieving the above object, the present invention adopts the following technical scheme that：
According to an aspect of the invention, there is provided a kind of Extendable anchor rod, including a body of rod and it is respectively arranged at institute
Pallet and the termination at body of rod both ends are stated, the pallet is detachably arranged in one end of the body of rod, and the termination passes through one
Fixing device above is arranged at the other end of the body of rod；The body of rod includes at least two rod pieces being connected with each other, described
The connecting pin of the rod piece of two interconnections is provided outside branch sleeve and expansion sleeve, and the branch sleeve is coated on two
Outside at a rod piece connecting pin, and fixed by more than one fixing device and the rod piece, the expansion sleeve
Cylinder is coated on the other parts of rod piece；The rod piece is provided with a fixes sleeve by the side of proximal head, and the fixes sleeve is led to
More than one fixing device is crossed to fix with the rod piece and termination.
According to an embodiment of the present invention, wherein there is an accommodating space, the accommodating sky inside the branch sleeve
Between internal diameter be more than the diameter of the rod piece, there is convex portion at the connecting pin of the rod piece, by the branch sleeve outside extremely
Interior direction, the convex portion outside diameter of each rod piece are cumulative.
According to an embodiment of the present invention, wherein the branch sleeve is additionally provided with more than one detachment stopping device, institute
The convex portion of rod piece described in detachment stopping device contact is stated, and part is exposed, and the axial cross section of the exposed parts of the anti-avulsion bar is wedge
Shape or right angled triangle.
According to an embodiment of the present invention, wherein the convex portion be from the rod piece diameter to the accommodating space in
Arc or linear projection between footpath.
According to an embodiment of the present invention, wherein the detachment stopping device is an anti-avulsion bar, the anti-avulsion bar is described in
The convex portion of rod piece described in branch sleeve and contact, the anti-avulsion bar also have an anti-avulsion bolt, and the anti-avulsion bolt is fixed on described
In branch sleeve and it is vertical be fixed on anti-avulsion bar, and the anti-avulsion bolt is located in the accommodating space.
According to an embodiment of the present invention, wherein the branch sleeve, expansion sleeve and fixes sleeve are respectively by two
A half circular sleeve is formed, and the two corresponding half circular sleeve joint is formed with more than one connecting portion, the connection
More than one connector is provided with portion, described two corresponding half circular sleeves are fixedly connected by the connector.
According to an embodiment of the present invention, wherein the expansion sleeve and the joint of the branch sleeve use bumps
The tube-in-tube structure of occlusion, and the joint sets more than one fixing device.
According to an embodiment of the present invention, wherein the fixing device is a fixing bolt, the fixing bolt passes through
The branch sleeve, fixes sleeve, expansion sleeve and termination are fixedly connected with the rod piece.
According to an embodiment of the present invention, wherein the connector concretely I-shaped connector, and the connection
Portion is symmetrical T-shaped notch, is respectively formed in described two corresponding half circular sleeves.
According to an embodiment of the present invention, wherein the branch sleeve and fixes sleeve are steel sleeve, the expansion
Sleeve is wooden sleeve.
As shown from the above technical solution, it is the advantages of Extendable anchor rod of the invention with good effect：
The elongation percentage of Extendable anchor rod provided by the invention is greatly improved relative to anchor cable, can reach 4 times, it is not
But have the advantages that anchorage cable anchoring depth is big, bearing capacity is high, and part roadway surrounding rock can be discharged by constantly extending the body of rod
Load, and the body of rod also keeps constant-resistance while extension, can effectively safeguard stability of the roadway, reduce the generation of roof fall accident.
Further, expansion sleeve water-swellable under mine wet environment, increases the friction between anchor pole and rock
Power, is substantially improved anchoring effect；Anchor pole can be made to be limited from heading sizes the connection of anchor pole rod piece by branch sleeve, increase
The use scope of anchor pole；Anchor pole rod piece connection dististyle is using arc-shaped transition or the convex portion of linear, with branch sleeve combination energy
Enough allow anchor pole to produce certain horizontal and vertical deformation without failing, particularly the environment such as soft rock, high stress country rock, can more send out
Wave its own advantage.Current coal mine roadway can be also solved since insufficient space cannot use long anchor using branch sleeve between rod piece
The problem of bar and insufficient anchor-holding force of anchor bolt.
Brief description of the drawings
Consider following the following detailed description of the embodiment of the present invention in conjunction with the accompanying drawings, various targets of the invention,
Feature and advantage will become apparent.Attached drawing is only the exemplary diagram of the present invention, is not necessarily drawn to scale.
In the accompanying drawings, same reference numeral represents same or similar component all the time.Wherein：
Fig. 1 is a kind of structure diagram of Extendable anchor rod according to an illustrative embodiments.
Fig. 2 is the amplification knot at a kind of two rod piece abutting ends of Extendable anchor rod according to an illustrative embodiments
Structure schematic diagram.
Fig. 3 is that termination, fixes sleeve and the body of rod of a kind of Extendable anchor rod according to an illustrative embodiments connect
Connect the enlarged structure schematic diagram at place.
Fig. 4 is the diagrammatic cross-section of the line A-A along Fig. 1.
Embodiment
Embodying the exemplary embodiments of feature of present invention and advantage will describe in detail in the following description.It should be understood that this
Invention can have various changes in different embodiments, it is neither departed from the scope of the present invention, and it is therein explanation and
Diagram inherently is illustrated as being used, and is not used to the limitation present invention.
As shown in Figure 1, it is a kind of structure diagram of Extendable anchor rod according to an illustrative embodiments.Such as figure
Shown, the Extendable anchor rod of the embodiment of the present invention mainly may include the body of rod 1, pallet 2 and termination 3, wherein, pallet 2 is dismountable
One end of the body of rod 1 is arranged at, it is mainly used for the outer face that ground is compressed in anchoring.The mounting means of pallet 2 and the body of rod 1 can
Using detachable installation, such as screw connection manner, naturally it is also possible to use other connection modes known in the field, herein simultaneously
Its specific connection is not limited.Pallet 2 can use currently known various tray types, such as butterfly pallet or plate shaped support
Disk, does not limit the type of pallet herein.
For example, termination 3 may be selected to be the conical sleeve of metal material, and termination 3 is arranged on the other end of the body of rod 1.Anchor
Gu when, termination 3 is located at the depths of ground, and termination 3 can use fixedly mounted or detachable installation settings on the body of rod 1,
Such as internal thread is equipped with the inside of the sleeve of termination 3, one end of the body of rod 1 is equipped with external screw thread, the two is mutually filled by internal and external threads
With together, termination 3 can also be directly fixed on bar 1 using welding manner.Further, termination 3 can also pass through one
Fixing device 4 above is arranged on one end of the body of rod 1, and in one embodiment, which specifically may be selected to be fixed spiral shell
Bolt, fixing device 4 sequentially pass through termination 3 and the body of rod 1 and are fixed together them.In addition termination 3 and the assembling of the body of rod 1
Being only for example property of mode, is not intended to limit its specific assembly method herein, it can certainly use well known in the art other
Assembly method.
According to an illustrative embodiments, the body of rod 1 includes at least two rod pieces 11 being connected with each other, and rod piece 11, which uses, to be had
The metal of some strength is made, and in the embodiment of the present invention, it can be specifically made of screw-thread steel, or uses other this areas
Known material is made.It can use and be threadedly coupled between the rod piece 11 of two interconnections, or it is other well known in the art
Dismountable connection mode.A branch sleeve 5 is additionally provided with the outside of at two 11 connecting pins of rod piece.Branch sleeve 5 coats
Outside at the connecting pin of two rod pieces 11, and be fixedly connected by more than one fixing device 4 with two rod pieces 11,
The branch sleeve 5 concretely rigidity material, or other other materials that can reach intensity, it is specific that the present invention is not intended to limit its
Material, the main purpose for using rigid is to increase the intensity of the body of rod 1, is also had inside branch sleeve 5 one accommodating
Space 51, and the internal diameter of the accommodating space 51 is more than the diameter of rod piece 11.
Fig. 2 is the amplification knot at a kind of two rod piece abutting ends of Extendable anchor rod according to an illustrative embodiments
Structure schematic diagram.As shown in Fig. 2, outside by branch sleeve 5 is equipped with the connecting pin of rod piece 11 to cumulative convex of interior direction
Portion 111, the convex portion are from 11 diameter of rod piece to the arc or linear projection between the internal diameter of the accommodating space, design convex portion
111 main purpose is in bolt deformation, can still to keep certain constant-resistance, so after rockbolt installation is good, is utilized
Arc convex not only enables anchor pole to extend, but also the frictional force between anchor pole and country rock is constantly increased with the elongation of anchor pole
Greatly.In addition, tensile function also makes anchor pole allow to deform without losing in the horizontal at the connecting pin of two rod pieces 11
Effect.In addition in one embodiment of this invention, when being linked together using multiple rod pieces 11, extending anchor provided by the invention
Bar can not only realize larger deformation, and can also keep constant-resistance while deformation.
As shown in Figure 1, expansion sleeve 6 is coated with other positions in the outside of rod piece 11, using the main of inflatable material
Purpose is to increase the dilatancy of the body of rod 1, and in the present embodiment, expansion sleeve can specifically use wooden sleeve, certainly its
Can be other expandable materials, the present invention is not intended to limit its specific material, with the expansion of expansion sleeve 6 during anchoring,
The frictional force between the body of rod 1 and country rock can further be increased, can effectively prevent the situation of slip from occurring, greatly improve
Anchoring property.
In one embodiment of the invention, the joint of branch sleeve 5 and expansion sleeve 6 can use the sleeve of concave-convex clutch
Structure, and more than one fixing device 4 is set in its joint.In addition the both ends cross section of branch sleeve 5 can be square
Notch, with the elongation of anchor pole, incision size increase causes expansion sleeve 6 further to expand, and further increases anchor pole and rock
Between frictional force, suppress anchor pole further deform, so as to prevent Surrounding Rock Movement from deforming.
The quantity of rod piece 11 can be increased as needed, and in the junction of two bodies of rod 11 increase can be coordinated to match
The branch sleeve 5 and/or expansion sleeve 6 of set.In this way, the progress of the length of anchor pole is flexibly assembled, moreover, can be carried out on longitudinal direction
Repeatedly expand to increase the anchorage effect of anchor pole and rock mass.
Fig. 1 is a kind of structure diagram of Extendable anchor rod according to an illustrative embodiments.Fig. 2 is according to one
Enlarged structure schematic diagram at a kind of two rod piece abutting ends of Extendable anchor rod shown in illustrative embodiments.Fig. 3 is basis
The structure for amplifying signal of the termination of Extendable anchor rod shown in one illustrative embodiments a kind of, fixes sleeve and body of rod junction
Figure.Fig. 4 is the diagrammatic cross-section of the line A-A along Fig. 1.
In one embodiment of the invention, as shown in Fig. 1 or Fig. 3, it is also provided with rod piece 11 by the side of proximal head 3
Fixes sleeve 7, and fixed by more than one fixing device 4 with rod piece 11 and termination 3, in embodiment, the fixes sleeve 7
Using rigidity material, it is to increase the intensity between the termination of end of rod piece 11, while the intensity of the body of rod 1 can also be increased,
Increase the use scope of anchor pole.
Referring to figs. 1 to Fig. 4, in some implementations of the present invention, fixing device 4 can be specifically a fixing bolt, fixed
Device can be generally made of metal material, it can also use other materials to be made certainly, of the invention to this and unlimited
System, fixing device 4 are fixed together through branch sleeve 5, expansion sleeve 6, fixes sleeve 7 and termination and rod piece 11.
And 4 part Naked of fixing device is exposed to the outside of the body of rod 1, and the axial cross section of exposed parts is wedge shape, it can also set certainly
Triangle at a right angle is counted, using such a design, primarily to the anchor force of increase anchor pole, increases the friction of anchor pole and country rock
Power.
Referring to figs. 1 to Fig. 4, in some implementations of the present invention, branch sleeve 5 and expansion sleeve 6 and fixes sleeve 7 divide
It is not made of two half circular sleeves, two corresponding half circular sleeve joints formed with more than one connecting portion 100,
Connecting portion 100 can be in the present embodiment the I-shaped notch opened up in above-mentioned joint, be set on the multiple connecting portion 100
Be equipped with multiple connectors 101, the connector 101 be specially the shape processing of corresponding above-mentioned connecting portion 100 into I-shaped, for will
Two corresponding half circular sleeves are fixed together to form complete cylinder, and connector 101 can be made of rigid, with
Increase the intensity of connection.The Extendable anchor rod that can make the present invention using such design operates more in practical applications
It is prompt.Certain connecting portion 100 and connector 101 also can use other shapes of assembling to set, such as can use C fonts, the present invention
Its specific shape is not intended to limit, as long as meeting the shape for combining above-mentioned two half circular sleeve in a word.
As shown in Fig. 2, being additionally provided with more than one detachment stopping device 8 in branch sleeve 5, the detachment stopping device 8 is in this technology
It is specially an anti-avulsion bar 81 in scheme, through branch sleeve 5 and pushes up the convex portion 111 of low rod piece 11, and part is exposed, anti-avulsion
The axial cross section of the exposed parts of bar 81 for wedge shape or right angled triangle, the rubbing action between increase and country rock, with anti-avulsion
What bar 81 was used in combination also has an anti-avulsion bolt 82, which be located in the accommodating space of branch sleeve 5, and consolidating vertically
Due on anti-avulsion bar 81, for strengthening the intensity of branch sleeve 5 and 11 junction of rod piece, prevent anti-avulsion bar 81 from being extruded by rod piece 11
Go out to cause slip.
The elongation percentage of Extendable anchor rod provided by the invention is greatly improved relative to anchor cable, can reach more than 4 times,
It not only has the advantages that anchorage cable anchoring depth is big, bearing capacity is high, and can discharge part tunnel by constantly extending the body of rod
Country rock load, and the body of rod also keeps constant-resistance while extension, can effectively safeguard stability of the roadway, reduce the hair of roof fall accident
It is raw.
Expansion sleeve water-swellable under mine wet environment, increases the frictional force between anchor pole and rock, significantly carries
Rise anchoring effect；Anchor pole can be made to be limited from heading sizes the connection of anchor pole rod piece by branch sleeve, increase anchor pole
Use scope；Anchor pole rod piece connecting portion uses the convex portion of arc-shaped transition, and being combined with branch sleeve can allow anchor pole to produce necessarily
Horizontal and vertical deformation without failing, the particularly environment such as soft rock, high stress country rock can more play its own advantage.Bar bar
Between using branch sleeve can also solve current coal mine roadway since insufficient space cannot use long anchor pole and anchor-holding force of anchor bolt not
The problem of sufficient.
Although exemplary embodiment describing the present invention with reference to several, it is to be understood that, term used is explanation and shows
Example property and nonrestrictive term.Since the present invention can be embodied without departing from the spiritual or real of invention in a variety of forms
Matter, it should therefore be appreciated that above-described embodiment is not limited to any foregoing details, and should be in the spirit that appended claims are limited
With widely explained in scope, therefore the whole changes fallen into claim or its equivalent scope and remodeling all should be the power of enclosing
Profit requires to be covered.
Claims (9)
1. a kind of Extendable anchor rod, including a body of rod and the pallet and the termination that are respectively arranged at the body of rod both ends, its feature
It is, the pallet is detachably arranged in one end of the body of rod, and the termination is set by more than one fixing device
In the other end of the body of rod；
The body of rod includes at least two rod piece, branch sleeve and the expansion sleeves being connected with each other, the branch sleeve cladding
Outside at the rod piece connecting pin of two interconnections, and consolidated by more than one fixing device and the rod piece
Fixed, the expansion sleeve is coated on other parts of the rod piece in addition to connecting pin is sentenced；
The rod piece is provided with a fixes sleeve by the side of proximal head, and the fixes sleeve passes through more than one fixing device
Fixed with the rod piece and termination；
There is an accommodating space, the internal diameter of the accommodating space is more than the diameter of the rod piece, described inside the branch sleeve
There is convex portion at the connecting pin of rod piece, it is equal to interior direction, the convex portion outside diameter of each rod piece by the outside of the branch sleeve
It is cumulative.
2. Extendable anchor rod as claimed in claim 1, it is characterised in that the branch sleeve is additionally provided with more than one stop
De- device, the convex portion of rod piece described in the detachment stopping device contact, and part is exposed, the axis of the exposed parts of the detachment stopping device
It is wedge shape or right angled triangle to section.
3. Extendable anchor rod as claimed in claim 1, it is characterised in that the convex portion is from the rod piece diameter to the appearance
The arc or linear projection between internal diameter between emptying.
4. Extendable anchor rod as claimed in claim 2, it is characterised in that the detachment stopping device is an anti-avulsion bar, the anti-avulsion
The convex portion of rod piece, the anti-avulsion bar also have an anti-avulsion bolt, the anti-avulsion bolt described in bar through the branch sleeve and contact
Be fixed in the branch sleeve and it is vertical be fixed on anti-avulsion bar, and the anti-avulsion bolt is located in the accommodating space.
5. Extendable anchor rod as claimed in claim 1, it is characterised in that the branch sleeve, expansion sleeve and fixing sleeve
Cylinder is formed by two half circular sleeves, and two corresponding half circular sleeve joints are described formed with more than one connecting portion
More than one connector is provided with connecting portion, described two corresponding half circular sleeves are fixedly connected by the connector.
6. Extendable anchor rod as claimed in claim 1, it is characterised in that the expansion sleeve and the engagement of the branch sleeve
Place uses the tube-in-tube structure of concave-convex clutch, and the joint sets more than one fixing device.
7. Extendable anchor rod as claimed in claim 1, it is characterised in that the fixing device is a fixing bolt, described solid
Determine bolt to be fixedly connected with the rod piece through the branch sleeve, fixes sleeve, expansion sleeve and termination.
8. Extendable anchor rod as claimed in claim 5, it is characterised in that the connector is specially I-shaped connector, and
The connecting portion is symmetrical T-shaped notch, is respectively formed in described two corresponding half circular sleeves.
9. such as any one of them Extendable anchor rod of claim 1 to 8, it is characterised in that the branch sleeve and fixing sleeve
Cylinder is steel sleeve, and the expansion sleeve is wooden sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146802.2A CN105781598B (en) | 2016-03-15 | 2016-03-15 | A kind of Extendable anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146802.2A CN105781598B (en) | 2016-03-15 | 2016-03-15 | A kind of Extendable anchor rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105781598A CN105781598A (en) | 2016-07-20 |
| CN105781598B true CN105781598B (en) | 2018-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610146802.2A Active CN105781598B (en) | 2016-03-15 | 2016-03-15 | A kind of Extendable anchor rod |
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| CN (1) | CN105781598B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916948B (en) * | 2018-01-22 | 2020-07-31 | 河南理工大学 | Anchor rod assembly for coal mine support |
| CN109736864B (en) | 2019-01-21 | 2020-07-24 | 河南理工大学 | Mining hydraulic constant-resistance deformation automatic pressure relief anchor rod and working method thereof |
| CN110578542B (en) * | 2019-09-19 | 2020-09-08 | 中国矿业大学 | High-stress rock burst roadway anchor rod, design method and working method |
| CN113323274A (en) * | 2021-06-21 | 2021-08-31 | 合肥四方工程机电有限责任公司 | Twisted steel anchoring structure and construction method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4445626A1 (en) * | 1994-12-21 | 1996-06-27 | Willich F Berg Bautechnik | Drill anchor for underground mining and tunnelling |
| CN202628130U (en) * | 2011-12-30 | 2012-12-26 | 洛阳工岩科技有限公司 | Self-propelled type anchor drill rod |
| MX350675B (en) * | 2013-07-12 | 2017-09-12 | Minova Int Ltd | Yieldable rock anchor. |
| CN204511478U (en) * | 2014-12-24 | 2015-07-29 | 浙江大学城市学院 | A kind of self-feeding anchor pile structure |
| CN204804863U (en) * | 2015-05-30 | 2015-11-25 | 高安森 | From formula of boring joinable prestressing force slip casting stock |
| CN204921006U (en) * | 2015-08-14 | 2015-12-30 | 山东科技大学 | Dock long stock with cross rib |
| CN105298525B (en) * | 2015-11-19 | 2018-10-12 | 辽宁工程技术大学 | Press to protecting against shock lengthening anchor pole |
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2016
- 2016-03-15 CN CN201610146802.2A patent/CN105781598B/en active Active
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| CN105781598A (en) | 2016-07-20 |
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