CN209925015U - Combined anchor rod and anchor cable supporting device - Google Patents
Combined anchor rod and anchor cable supporting device Download PDFInfo
- Publication number
- CN209925015U CN209925015U CN201920611622.6U CN201920611622U CN209925015U CN 209925015 U CN209925015 U CN 209925015U CN 201920611622 U CN201920611622 U CN 201920611622U CN 209925015 U CN209925015 U CN 209925015U
- Authority
- CN
- China
- Prior art keywords
- stage
- stage tension
- tension
- tray
- tension member
- Prior art date
- 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
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model discloses a combined anchor rod and anchor cable supporting device, which comprises a first-stage tension piece and a second-stage tension piece, wherein the first-stage tension piece is a hollow anchor rod, the second-stage tension piece is an anchor cable, the first-stage tension piece is sleeved outside the second-stage tension piece, the first-stage tension piece is positioned at the lower part of the anchoring section of the second-stage tension piece, and the anchoring section of the first-stage tension piece is provided with a grouting hole; the outer diameter of the secondary tension piece is smaller than the inner diameter of the primary tension piece; the lower end of the first-stage tension member is provided with a first-stage tension tray, the lower end of the second-stage tension member is provided with a second-stage tension tray, the first-stage tension tray is positioned above the second-stage tension tray, and the diameter of the first-stage tension tray is smaller than that of the second-stage tension tray; an annular pressure relief piece is arranged between the first-stage tension tray and the second-stage tension tray. The utility model discloses can prevent that the anchor rope from breaking, guarantee the safety support of mine.
Description
Technical Field
The utility model relates to a colliery is strutted equipment technical field, especially relates to a modular stock anchor rope supporting device.
Background
So far, the bolting or anchor cable supporting rate of the national key coal mine reaches 60 percent, and some mining areas exceed 90 percent and even reach 100 percent. The anchor bolt support is a preferred, safe and efficient support mode for coal mine roadways in China. The increasing of the coal mining depth has the appearance of a plurality of unprecedented complex difficult roadways, including deep high ground stress roadways, extra-large section roadways, gob-side entry retaining and digging roadways, roadways affected by strong mining, soft damage roadways and the like, and the increase of the surrounding rock stress causes the fracture failure of a large number of anchor rods (anchor cables), so that the roadways are in a non-support state, and the safety production of mines and the physical and mental health of coal mine workers are seriously threatened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modular stock anchor rope supporting device for above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a combined anchor rod and anchor cable supporting device comprises a primary tension piece and a secondary tension piece, wherein the primary tension piece is a hollow anchor rod, the secondary tension piece is an anchor cable, the primary tension piece is sleeved outside the secondary tension piece, the primary tension piece is positioned at the lower part of an anchoring section of the secondary tension piece, and the anchoring section of the primary tension piece is provided with a grouting hole; the outer diameter of the secondary tension piece is smaller than the inner diameter of the primary tension piece; the lower end of the first-stage tension member is provided with a first-stage tension tray, the lower end of the second-stage tension member is provided with a second-stage tension tray, the first-stage tension tray is positioned above the second-stage tension tray, and the diameter of the first-stage tension tray is smaller than that of the second-stage tension tray; an annular pressure relief piece is arranged between the first-stage tension tray and the second-stage tension tray.
Furthermore, a locking nut is arranged at the lower part of the first-stage tension piece, and a lockset is arranged at the lower part of the second-stage tension piece.
Further, a grouting plug is arranged between the first-stage tension member and the second-stage tension member, and the grouting plug is provided with a grouting pipe; the grouting plug is positioned at the lower end of the primary tension member.
The utility model has the advantages that: the utility model discloses a combination formula stock anchor rope support device adopts two-stage stock and anchor rope support, and the anchor rope is as main drawing piece, can apply active stress, and hollow stock is the bearing pressure of stage in the past, and when country rock stress increase, hollow stock moves down for the anchor rope, lets the casting die warp simultaneously, by the anchor rope bearing pressure, can prevent that the anchor rope from breaking, guarantees the safety support of mine.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
Referring to fig. 1, a combined anchor rod and anchor cable supporting device comprises a primary tension member 1 and a secondary tension member 2, wherein the primary tension member is a hollow anchor rod, the secondary tension member is an anchor cable, the primary tension member is sleeved outside the secondary tension member, the primary tension member is positioned at the lower part of an anchoring section of the secondary tension member, and the anchoring section of the primary tension member is provided with a grouting hole 3; the outer diameter of the secondary tension member is smaller than the inner diameter of the primary tension member, for example: the second-stage tension member adopts a steel twisted wire anchor cable with the outer diameter of 15mm, the first-stage tension member adopts a hollow steel pipe with the outer diameter of 32mm, and the wall thickness is 3 mm; the lower end of the primary tension member is provided with a primary tension tray 4, the lower end of the secondary tension member is provided with a secondary tension tray 5, the primary tension tray is positioned above the secondary tension tray, and the diameter of the primary tension tray is smaller than that of the secondary tension tray, for example: the diameter of the first-stage tension tray is 100mm, and the diameter of the second-stage tension tray is 150 mm; an annular yielding piece 6 is arranged between the first-stage tension tray and the second-stage tension tray, the yielding piece can deform when being pressed, and the yielding piece can be waist-drum-shaped or conical.
The lower part of the first-stage tension member is provided with a locking nut 7, the lower part of the second-stage tension member is provided with a lock 8, and the locking nut and the lock are used for locking the tension tray.
A grouting plug 9 is arranged between the first-stage tension member and the second-stage tension member, and is provided with a grouting pipe for connecting with a grouting system; the grouting plug is positioned at the lower end of the primary tension member. In addition, the lower end of the primary tension piece is also provided with a grout stop plug 10.
When the grouting device is implemented, the anchor cable sleeved with the hollow anchor rod is integrally inserted into the anchor hole, grouting is carried out along the grouting pipe by the grouting system, grouting is injected along the gap between the hollow anchor rod and the anchor cable and enters the anchor hole from the grouting hole, and after grouting is finished, residual grouting in the hollow anchor rod flows back and is discharged. Firstly, fixing the first-stage tension disc on the hollow anchor rod by using a locking nut, then installing an annular yielding piece, finally fixing the second-stage tension disc on the anchor cable by using a lock, and applying prestress to finish anchoring.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The utility model provides a modular stock anchor rope supporting device which characterized in that: the anchor rod comprises a primary tension member and a secondary tension member, wherein the primary tension member is a hollow anchor rod, the secondary tension member is an anchor cable, the primary tension member is sleeved outside the secondary tension member, the primary tension member is positioned at the lower part of an anchoring section of the secondary tension member, and the anchoring section of the primary tension member is provided with a grouting hole; the outer diameter of the secondary tension piece is smaller than the inner diameter of the primary tension piece; the lower end of the first-stage tension member is provided with a first-stage tension tray, the lower end of the second-stage tension member is provided with a second-stage tension tray, the first-stage tension tray is positioned above the second-stage tension tray, and the diameter of the first-stage tension tray is smaller than that of the second-stage tension tray; an annular pressure relief piece is arranged between the first-stage tension tray and the second-stage tension tray.
2. A combined anchor and cable support device according to claim 1, wherein: and a locking nut is arranged at the lower part of the first-stage tension member, and a lockset is arranged at the lower part of the second-stage tension member.
3. A combined anchor and cable support device according to claim 1, wherein: a grouting plug is arranged between the first-stage tension member and the second-stage tension member, and the grouting plug is provided with a grouting pipe; the grouting plug is positioned at the lower end of the primary tension member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611622.6U CN209925015U (en) | 2019-04-30 | 2019-04-30 | Combined anchor rod and anchor cable supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920611622.6U CN209925015U (en) | 2019-04-30 | 2019-04-30 | Combined anchor rod and anchor cable supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925015U true CN209925015U (en) | 2020-01-10 |
Family
ID=69089217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920611622.6U Expired - Fee Related CN209925015U (en) | 2019-04-30 | 2019-04-30 | Combined anchor rod and anchor cable supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441804A (en) * | 2020-04-07 | 2020-07-24 | 中国矿业大学 | Anti-inclination yielding large-deformation anchoring device and use method thereof |
-
2019
- 2019-04-30 CN CN201920611622.6U patent/CN209925015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441804A (en) * | 2020-04-07 | 2020-07-24 | 中国矿业大学 | Anti-inclination yielding large-deformation anchoring device and use method thereof |
| CN111441804B (en) * | 2020-04-07 | 2021-02-19 | 中国矿业大学 | Anti-inclination yielding large-deformation anchoring device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102937030B (en) | Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock | |
| CN103899329B (en) | A kind of administering method of large deformation breaking surrounding rock tunnel | |
| CN103089276B (en) | Deep-shallow hole and high-low pressure coupling grouting technology | |
| CN201241712Y (en) | Primary support structure of large deformation formation tunnel | |
| CN104895072B (en) | A kind of prestress anchorage cable and prestress anchorage cable one-pass molding construction method | |
| CN103711507B (en) | A kind of many steel strand wires combination supporting device controls the method for big relaxation zone roadway deformation | |
| CN101949294A (en) | Prestressed full-length anchorage support method | |
| CN205477660U (en) | Little clean apart from tunnel in rock pillar reinforcerment system | |
| CN109056722B (en) | Full-length corrosion-resistant bonded pre-stressed anchor cable | |
| CN108035742A (en) | A kind of passive harmonious method for protecting support of extreme rockburst tunnel master | |
| CN209925015U (en) | Combined anchor rod and anchor cable supporting device | |
| CN209457957U (en) | A kind of New Anchor Cable anchorage | |
| CN206468364U (en) | In one kind device is pre-installed to deep hole Anchor Agent | |
| CN112593988B (en) | Multi-section anchoring energy-consumption yielding anchor rod aiming at rock burst and anchoring method | |
| CN112796810A (en) | Rock burst prevention multi-section anchoring energy consumption supporting device and supporting method | |
| CN104790992A (en) | Simple anchor cable and lockset demounting connector device | |
| KR100997672B1 (en) | A prevent of twisted anchor | |
| CN211038693U (en) | NPR anchor rod | |
| CN205576907U (en) | Anchor rope structure for side slope support retaining wall | |
| CN205100993U (en) | Ore removal level drift section supporting construction | |
| CN207554077U (en) | The passive harmonious supporting construction of extreme rockburst tunnel master | |
| CN106088088A (en) | The stress decentralized stiffening pile of recyclable dowel and construction method thereof | |
| CN205875150U (en) | Stake of putting more energy into of stress dispersion type of recoverable dowel | |
| CN206338082U (en) | A kind of anchor cable support apparatus | |
| CN102296974A (en) | Rapid maintaining method for broken roof in stope |
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: 20200110 Termination date: 20200430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |