CN106930780A - A kind of anchor cable pressure limiting prior-warning device - Google Patents
A kind of anchor cable pressure limiting prior-warning device Download PDFInfo
- Publication number
- CN106930780A CN106930780A CN201710318399.1A CN201710318399A CN106930780A CN 106930780 A CN106930780 A CN 106930780A CN 201710318399 A CN201710318399 A CN 201710318399A CN 106930780 A CN106930780 A CN 106930780A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- plug
- anchor cable
- double wedge
- warning device
- 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.)
- Withdrawn
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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
- E21D21/0093—Accessories
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)
Abstract
The invention discloses a kind of security reliability anchor cable pressure limiting prior-warning device higher.Including sleeve pipe and plug, plug is in sleeve pipe and coaxial with sleeve pipe, and the outer of the plug is provided with equally distributed double wedge, and the internal diameter of the external diameter more than sleeve pipe of double wedge, plug upper end is pressed into from its lower end, and plug center is provided with the through hole for penetrating anchor cable.Because plug is to be pressed into sleeve pipe by force, the double wedge of plug plays a part of planing tool, and internal surface of sleeve pipe is planed, reaction force when resistance comes from planing is therefore suffered from, and the component for forming crimp to sleeve pipe of planing is smaller, therefore, sleeve pipe is difficult to crack, and security reliability is greatly improved.
Description
Technical field
The present invention relates to the device that a kind of erecting by overhang, particularly underground coal mine are hung using anchor cable.
Background technology
At present, anchor cable carries out safety support and is widely used in underground coal mine using anchor cable.The general method that uses is,
Anchor cable is passed through the sleeve pipe being fixed on supporting roof, anticreep sole piece is fixed in anchor cable lower end.When coal mining geology condition changes
When, coal seam top can fall, and now anchor cable will not fall because being fixed on lithosphere, and the sleeve pipe on supporting roof can be with coal
The synchronous whereabouts of layer, such sleeve pipe can also be moved down, therefore, there is relative motion in sleeve pipe and anchor cable, sleeve pipe can pull downward on anchor
Rope, when the pulling force reaches to a certain degree, can break anchor cable, so as to serious industrial accident occur.To improve safety
Accident early warning ability, the patent of invention of Patent No. 201110157137.4, there is provided one kind can be pre- in advance before anchor cable is broken
" constant resistance and large deformation cable and its constant-resistance device " known.The constant-resistance device includes sleeve pipe and constant-resistance body, and sleeve pipe is in straight tube knot
Structure, constant-resistance body be in frustum structure, and the lower end surface of the constant-resistance body the diameter with diameter greater than its upper end end face；Described sleeve pipe
Internal diameter less than the constant-resistance body lower end surface diameter, the bottom of described sleeve pipe inwall is provided with wedge-shaped part, the constant-resistance body
Located at the wedge-shaped part；The intensity of the constant-resistance body is more than the intensity of described sleeve pipe so that the constant-resistance body is moved in described sleeve pipe
The constant-resistance shape is constant when dynamic and described sleeve pipe is plastically deformed；The constant-resistance body is fixed in the lower end of the cable
On.It is permanent when anchor cable drives constant-resistance body to be moved by force in sleeve pipe when pulled due to the intensity of the intensity more than sleeve pipe of constant-resistance body
Resistance body can squeeze sleeve pipe, and sleeve pipe can produce plastic deformation, and when the material quality of shell material goes wrong, deformation can not be uniform
During change, easily crack sleeve pipe, so that constant-resistance body is deviate from from sleeve pipe.Therefore, the security reliability of the device is not also high.
The content of the invention
It is an object of the invention to provide a kind of security reliability anchor cable pressure limiting prior-warning device higher.
The technical scheme is that：Including sleeve pipe and plug, plug is located in sleeve pipe and, the plug coaxial with sleeve pipe
Outer be provided with equally distributed double wedge, the internal diameter of the external diameter more than sleeve pipe of double wedge, plug upper end is pressed into from its lower end, plug
Center is provided with the through hole for penetrating anchor cable.
Described sleeve pipe upper end is capping, and cap central is provided with anchor cable hole.
Using sleeve pipe and the structure of plug in the present invention, and the outer of plug is provided with equally distributed double wedge, outside double wedge
More than the internal diameter of sleeve pipe, plug upper end is pressed into from its lower end in footpath.Because plug is to be pressed into sleeve pipe by force, the double wedge of plug rises
To the effect of planing tool, internal surface of sleeve pipe is planed, therefore suffer from reaction force when resistance comes from planing, and planed to set
The component that pipe forms crimp is smaller, therefore, sleeve pipe is difficult to crack, and security reliability is greatly improved.
Brief description of the drawings
Fig. 1 is structure sectional view of the invention.
Fig. 2 is structural decomposition diagram of the invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but is not constituted to any limit of the invention
System.Shown in Fig. 1, Fig. 2, the present invention includes sleeve pipe 1 and plug 2, and plug 2 is located in sleeve pipe 1 and, the plug 2 coaxial with sleeve pipe 1
Outer be provided with equally distributed double wedge, the internal diameter of the external diameter more than sleeve pipe 1 of double wedge, the upper end of plug 2 is pressed into from the lower end of sleeve pipe 1,
The center of plug 2 is provided with the through hole for penetrating anchor cable 3.The upper end of described sleeve pipe 1 is capping, and cap central is provided with the hole of anchor cable 3, with sharp more preferable
Ground positioning anchor cable 3, makes anchor cable 3 coaxial with plug 2 as far as possible, sleeve pipe 1 is uniformly distributed with the interaction force of plug 2.
During installation, the one end of plug 2 press-in sleeve pipe 1 lower end penetrates anchor cable 3 from cap central on sleeve pipe 1, and from plug
2 lower ends are stretched out, and then anti-drop block 4 is fixed on the bottom of anchor cable 3 stretched out.When coal seam plate declines, now anchor cable 3 is because of fixation
Will not fall on lithosphere, sleeve pipe 1 on supporting roof can synchronously fall with coal seam, such sleeve pipe 1 also can be to moving down
It is dynamic, therefore, sleeve pipe 1 and the plug 2 being connected on anchor cable 3 can be relatively moved, and the amplitude that coal seam falls is bigger, and plug 2 exists
The distance moved in sleeve pipe 1 is bigger, when the distance is substantially increased, just provides an early warning signal, and workman should use should
Anxious measure, prevents anchor cable 3 from breaking and security incident occurs.
Claims (2)
1. a kind of anchor cable pressure limiting prior-warning device, including sleeve pipe（1）And plug（2）, plug（2）Positioned at sleeve pipe（1）Interior and and sleeve pipe
（1）Coaxially, it is characterised in that：The plug（2）Outer be provided with equally distributed double wedge, the external diameter of double wedge is more than sleeve pipe（1）
Internal diameter, plug（2）Upper end is from sleeve pipe（1）Lower end is pressed into, plug（2）Center is provided with and penetrates anchor cable（3）Through hole.
2. anchor cable pressure limiting prior-warning device according to claim 1, it is characterized in that：Described sleeve pipe（1）Upper end is capping, capping
Center is provided with anchor cable hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318399.1A CN106930780A (en) | 2017-05-08 | 2017-05-08 | A kind of anchor cable pressure limiting prior-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318399.1A CN106930780A (en) | 2017-05-08 | 2017-05-08 | A kind of anchor cable pressure limiting prior-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106930780A true CN106930780A (en) | 2017-07-07 |
Family
ID=59429741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710318399.1A Withdrawn CN106930780A (en) | 2017-05-08 | 2017-05-08 | A kind of anchor cable pressure limiting prior-warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930780A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775251A (en) * | 2018-06-08 | 2018-11-09 | 王跃平 | Anchor cable unloader |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034930A (en) * | 2001-07-26 | 2003-02-07 | Nihonkai Gijutsu Consultants:Kk | Center holder pipes for non-plate ground anchors, meshes and non-plate ground anchors |
| CN102296604A (en) * | 2011-06-13 | 2011-12-28 | 中国矿业大学(北京) | Constant-resistance large-deformation cable rope and constant-resistance device thereof |
| CN104100286A (en) * | 2014-08-01 | 2014-10-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Anchor rod/anchor cable with constant resistance and large deformation and design method thereof |
| CN105041355A (en) * | 2015-07-29 | 2015-11-11 | 中国科学院武汉岩土力学研究所 | Broaching type rock-burst-resistant anchor rod |
| CN206722866U (en) * | 2017-05-08 | 2017-12-08 | 王跃平 | Anchor cable pressure limiting prior-warning device |
-
2017
- 2017-05-08 CN CN201710318399.1A patent/CN106930780A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003034930A (en) * | 2001-07-26 | 2003-02-07 | Nihonkai Gijutsu Consultants:Kk | Center holder pipes for non-plate ground anchors, meshes and non-plate ground anchors |
| CN102296604A (en) * | 2011-06-13 | 2011-12-28 | 中国矿业大学(北京) | Constant-resistance large-deformation cable rope and constant-resistance device thereof |
| CN104100286A (en) * | 2014-08-01 | 2014-10-15 | 中国科学院、水利部成都山地灾害与环境研究所 | Anchor rod/anchor cable with constant resistance and large deformation and design method thereof |
| CN105041355A (en) * | 2015-07-29 | 2015-11-11 | 中国科学院武汉岩土力学研究所 | Broaching type rock-burst-resistant anchor rod |
| CN206722866U (en) * | 2017-05-08 | 2017-12-08 | 王跃平 | Anchor cable pressure limiting prior-warning device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775251A (en) * | 2018-06-08 | 2018-11-09 | 王跃平 | Anchor cable unloader |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170707 |