CN113417682A - non-Newtonian fluid lets presses and struts stock - Google Patents
non-Newtonian fluid lets presses and struts stock Download PDFInfo
- Publication number
- CN113417682A CN113417682A CN202110927515.6A CN202110927515A CN113417682A CN 113417682 A CN113417682 A CN 113417682A CN 202110927515 A CN202110927515 A CN 202110927515A CN 113417682 A CN113417682 A CN 113417682A
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- newtonian fluid
- stock
- rod
- upper anchor
- 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.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 125000006850 spacer group Chemical group 0.000 claims description 3
- KJLPSBMDOIVXSN-UHFFFAOYSA-N 4-[4-[2-[4-(3,4-dicarboxyphenoxy)phenyl]propan-2-yl]phenoxy]phthalic acid Chemical compound C=1C=C(OC=2C=C(C(C(O)=O)=CC=2)C(O)=O)C=CC=1C(C)(C)C(C=C1)=CC=C1OC1=CC=C(C(O)=O)C(C(O)=O)=C1 KJLPSBMDOIVXSN-UHFFFAOYSA-N 0.000 claims description 2
- 239000003245 coal Substances 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 2
- 239000011435 rock Substances 0.000 description 9
- 238000005065 mining Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/02—Setting anchoring-bolts with provisions for grouting
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)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention relates to the technical field of roadway support, and particularly discloses a non-Newtonian fluid yielding support anchor rod. The screw rod is positioned at the upper end part of the upper anchor rod, the non-Newtonian fluid chamber is reserved in the upper anchor rod, the side wall of the upper anchor rod is provided with a liquid injection hole, and the bottom of the upper anchor rod is provided with an anchor rod limiting pin and a sealing ring pad; the lower anchor rod connecting rod is inserted into the non-Newtonian fluid chamber, and the end part of the lower anchor rod connecting rod is fixed with the lower anchor rod clamping pin, so that the lower anchor rod is connected with the upper anchor rod, and the non-Newtonian fluid chamber is suitable for supporting a coal mine tunnel. The invention enhances the shock resistance of the anchor rod and has the characteristics of simple operation, safety, reliability and low cost.
Description
Technical Field
The invention relates to the technical field of roadway support, in particular to a non-Newtonian fluid yielding support anchor rod.
Background
Deep coal mining is a problem to be faced by most of main coal mining countries in the world at present and in the future, and with the large energy demand, the mine deepening speed is accelerated, and some coal mines are turned or are about to enter deep mining. Along with the increase of the mining depth, the geological conditions are more and more complex, the stress of coal rock bodies is increased, the number of coal beds with rock burst danger is increased, mines with rock burst are gradually increased, and the occurrence frequency, strength and damage degree of the rock burst are gradually serious along with the increase of the depth. Roadway surrounding rocks also often show the characteristics of high stress, large deformation and the like, the conventional anchor rod has limited impact resistance, and is difficult to support the surrounding rocks under the action of strong impact, once the deformation of the roadway surrounding rocks exceeds the range which can be borne by the anchor rod, accidents can be caused by the failure of support equipment, so that serious threats are caused to mining safety, and serious losses are caused to enterprises. Therefore, the non-Newtonian fluid yielding support anchor rod is required to be upgraded and reformed on the basis of the existing support anchor rod device so as to overcome the existing problems and defects.
Disclosure of Invention
The invention designs a non-Newtonian fluid yielding support anchor rod aiming at the problems that the existing anchor rod has limited shock resistance and the anchor rod is frequently broken or a steel bar is pulled out in the case of rock burst or rock burst.
The invention adopts the following technical scheme: the utility model provides a non-Newtonian fluid lets presses and strut stock which characterized in that specifically includes: screw rod, go up the stock, stock bayonet lock down, annotate liquid hole, non-Newton fluid room, down stock connecting rod, go up stock spacer pin, sealing washer pad, nine parts of stock down:
the screw rod is positioned at the upper end part of the upper anchor rod, a non-Newtonian fluid chamber is reserved in the upper anchor rod, a liquid injection hole is formed in the side wall of the upper anchor rod, and an anchor rod limiting pin and a sealing ring pad are arranged at the bottom of the upper anchor rod; the lower anchor rod connecting rod is inserted into the non-Newtonian fluid chamber, and the end part of the lower anchor rod connecting rod is fixed with the lower anchor rod clamping pin, so that the lower anchor rod is connected with the upper anchor rod.
Specifically, the upper anchor rod and the lower anchor rod freely slide along the vertical direction.
Specifically, the upper and lower anchor rod sections can be freely selected and are not limited to the midpoint.
Specifically, the gasket does not restrict the lower shank from sliding but controls the outflow of non-flowing fluid.
Drawings
Fig. 1 is a schematic view of a non-newtonian fluid yielding support bolt embodying the present invention.
Figure 2 is a side view of a non-newtonian fluid yielding support bolt and method of use embodying the present invention.
Fig. 3 is a schematic view of the internal structure of the filling apparatus.
In the figure: 1 is a screw; 2 is an upper anchor rod; 3 is a lower anchor rod bayonet lock; 4 is a liquid injection hole; 5 is a non-Newtonian fluid chamber; 6 is a lower anchor rod connecting rod; 7 is an upper anchor rod limit pin; 8 is a sealing ring pad; and 9 is a lower anchor rod.
Detailed Description
The invention is further explained below with reference to the drawings.
The invention provides a non-Newtonian fluid yielding support anchor rod which is characterized by specifically comprising the following components in percentage by weight: screw rod 1, go up stock 2, down stock cotter 3, annotate liquid hole 4, non-Newtonian fluid room 5, down stock connecting rod 6, go up stock spacer pin 7, sealing washer pad 8, nine parts of stock 9 down:
the screw rod 1 is positioned at the upper end part of the upper anchor rod 2, the non-Newtonian fluid chamber 5 is reserved in the upper anchor rod 2, the side wall of the upper anchor rod is provided with a liquid injection hole 4, and the bottom of the upper anchor rod 2 is provided with an anchor rod limiting pin 7 and a sealing ring pad 8; the lower anchor connecting rod 6 is inserted into the non-newtonian fluid chamber 5 and the lower anchor bayonet 3 is fixed at the end to connect the lower anchor 9 with the upper anchor 2.
Specifically, the upper anchor rod 2 and the lower anchor rod 9 can slide freely along the vertical direction.
Specifically, the sections of the upper anchor rod 2 and the lower anchor rod 9 can be freely selected and are not limited to the middle point.
Specifically, the gasket 8 does not restrict the lower anchor rod 9 from sliding, but controls the outflow of the non-flowing fluid.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides a non-Newtonian fluid lets presses and strut stock which characterized in that specifically includes: the anchor rod, go up stock, stock bayonet lock down, annotate liquid hole, non-Newtonian fluid room, stock connecting rod down, go up stock spacer pin, sealing washer pad, stock down nine parts.
The screw rod is positioned at the upper end part of the upper anchor rod, a non-Newtonian fluid chamber is reserved in the upper anchor rod, a liquid injection hole is formed in the side wall of the upper anchor rod, and an anchor rod limiting pin and a sealing ring pad are arranged at the bottom of the upper anchor rod; the lower anchor rod connecting rod is inserted into the non-Newtonian fluid chamber, and the end part of the lower anchor rod connecting rod is fixed with the lower anchor rod clamping pin, so that the lower anchor rod is connected with the upper anchor rod.
2. A non-newtonian fluid yield support bolt according to claim 1, wherein the upper and lower bolts are free to slide vertically.
3. A non-newtonian fluid yield support bolt according to claim 1, wherein the upper and lower bolt sections are freely selectable and not confined to a midpoint.
4. A non-newtonian fluid yield support bolt according to claim 1, wherein the gasket does not restrict the lower bolt from sliding but controls the outflow of non-flowing fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110927515.6A CN113417682A (en) | 2021-08-10 | 2021-08-10 | non-Newtonian fluid lets presses and struts stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110927515.6A CN113417682A (en) | 2021-08-10 | 2021-08-10 | non-Newtonian fluid lets presses and struts stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113417682A true CN113417682A (en) | 2021-09-21 |
Family
ID=77719008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110927515.6A Pending CN113417682A (en) | 2021-08-10 | 2021-08-10 | non-Newtonian fluid lets presses and struts stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113417682A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573279A (en) * | 2013-11-14 | 2014-02-12 | 山东科技大学 | Mining telescopic energy adsorption anti-impact viscous damping anchor rod and supporting method thereof |
| CN204552782U (en) * | 2015-04-28 | 2015-08-12 | 西安科技大学 | A kind of anchor pole is by pressure device |
| CN109184765A (en) * | 2018-08-03 | 2019-01-11 | 中南大学 | A kind of stable state allow pressure release can detachable hydraulic anchor pole and its method for protecting support |
| CN110761820A (en) * | 2019-11-07 | 2020-02-07 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| US20210040849A1 (en) * | 2017-06-28 | 2021-02-11 | Shandong University Of Science And Technology | Grouting anchor bolt and grouting anchor cable for supporting of large deformation and constant resistance and quantitative roadway supporting method |
| CN113006831A (en) * | 2021-05-06 | 2021-06-22 | 山东科技大学 | Steel arch yielding buffer support for roadway miner and implementation method thereof |
-
2021
- 2021-08-10 CN CN202110927515.6A patent/CN113417682A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573279A (en) * | 2013-11-14 | 2014-02-12 | 山东科技大学 | Mining telescopic energy adsorption anti-impact viscous damping anchor rod and supporting method thereof |
| CN204552782U (en) * | 2015-04-28 | 2015-08-12 | 西安科技大学 | A kind of anchor pole is by pressure device |
| US20210040849A1 (en) * | 2017-06-28 | 2021-02-11 | Shandong University Of Science And Technology | Grouting anchor bolt and grouting anchor cable for supporting of large deformation and constant resistance and quantitative roadway supporting method |
| CN109184765A (en) * | 2018-08-03 | 2019-01-11 | 中南大学 | A kind of stable state allow pressure release can detachable hydraulic anchor pole and its method for protecting support |
| CN110761820A (en) * | 2019-11-07 | 2020-02-07 | 长江水利委员会长江科学院 | Yielding anchor rod design method suitable for large deformation of weak surrounding rock |
| CN113006831A (en) * | 2021-05-06 | 2021-06-22 | 山东科技大学 | Steel arch yielding buffer support for roadway miner and implementation method thereof |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210921 |