CN103628901B - Mining diameter-expanding type anti-impact single hydraulic bracket - Google Patents
Mining diameter-expanding type anti-impact single hydraulic bracket Download PDFInfo
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- CN103628901B CN103628901B CN201310660119.7A CN201310660119A CN103628901B CN 103628901 B CN103628901 B CN 103628901B CN 201310660119 A CN201310660119 A CN 201310660119A CN 103628901 B CN103628901 B CN 103628901B
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- hydraulic bracket
- expanding
- expansion tube
- monomer hydraulic
- mining
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Abstract
nullThe invention belongs to colliery safety support equipment，Particularly to a kind of mining diameter-expanding type anti-impact single hydraulic bracket，Including monomer hydraulic bracket (5)、Steel plate (1)，(2) are managed in the footpath of protecting filling band expansion tube inserting groove (2 1) the similar shape identical with monomer hydraulic bracket (5) on the reducing boss of monomer hydraulic bracket (5)，In the closing of expanding set (3), top is connected with expansion tube (2) top，Threaded equipped with anti-dumping set (4) with monomer hydraulic bracket (5) in expanding set (3) periphery，Top fixation steel plate (1) at expanding set (3)，It is inadequate that mining diameter-expanding type anti-impact single hydraulic bracket solves the dynamic response time of overflow valve when bump occurs，Overflow valve has little time the problem opened，Monomer hydraulic bracket bending when stopping or alleviate bump、Fracture and detonation situation，It is convenient for changing expansion tube parts.
Description
Technical field
The invention belongs to colliery safety support equipment, particularly to a kind of mining diameter-expanding type anti-impact single hydraulic bracket.
Background technology
Bump has instantaneity, sudden and destructive, and the big energy of simultaneous discharges, and release impact energy is greatly to 103MJ, release impact energy mainly acts on two parts, and a part acts on coal and rock, causes the broken of coal and rock；Another part acts on roadway surrounding rock and supporting construction by transmission consumption, and its enormous impact can act on coal and rock and tunnel, causes coal and rock broken and tunnel and Support structure damage thereof.nullNow commonly use monomer hydraulic bracket and there is the support force that setting is relevant with rock mass deformation，Inhibit the deformation in tunnel，But heavily stressed big Rheological Deformation is not the support force by support can be resisted，So the overflow valve of hydraulic support sets nominal resistance，The deformation i.e. serving suppression country rock protects again hydraulic support compression failure under heavily stressed，When reaching nominal resistance，Overflow valve is opened，Step down energy-absorbing，Reach to absorb the quasistatic rheology large deformation energy-absorbing under rheology，Serve the rheology of the heavily stressed country rock in deep and allow bit function，But when there is bump，Powerful shock loading，Bump process several seconds to tens seconds，Impulsive load to maximum load at several milliseconds to a few tens of milliseconds，The dynamic response time making existing monomer hydraulic bracket overflow valve is inadequate，When bump occurs，Overflow valve has little time to open and is difficult to withstand，Cause bracket bent、Fracture and detonation，Hundreds of meter of tunnel is washed away，Personal safety is constituted a threat to.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, it is provided that a kind of simple in construction, there is buffering energy-absorbing function, safe and reliable mining diameter-expanding type anti-impact single hydraulic bracket.
The present invention solves technical problem and the technical scheme is that mining diameter-expanding type anti-impact single hydraulic bracket includes: monomer hydraulic bracket, steel plate, the upper main body being characterized in monomer hydraulic bracket is reducing boss shape, a band expansion tube inserting groove the expansion tube of the similar shape identical with monomer hydraulic bracket is filled on the reducing boss of monomer hydraulic bracket, the expanding set of plug-in mounting upper end closed in expansion tube inserting groove, in the closing of expanding set, top is connected with expansion tube top, threaded equipped with anti-dumping set in expanding set periphery with monomer hydraulic bracket, top fixation steel plate at expanding set.
nullThe invention has the beneficial effects as follows: the feature that when mining diameter-expanding type anti-impact single hydraulic bracket is to occur for coal mine rock burst, energy quickly discharges with impulse form，A kind of enlarged diameter type erosion control monomer hydraulic bracket of design，Enlarged diameter type erosion control monomer hydraulic bracket can reach specified enabling capabilities under action of static load，Under impact loading, expansion tube energy realization effect counter-force keeps constant by main body on expanding rear press-in monomer hydraulic bracket，Expansion tube absorbs part impact energy during expanding，Also energy Free up Memory is provided to coal petrography by compression stroke，Expansion tube absorbs part impact energy the most indirectly，Also preferably resolve the dynamic response time of overflow valve when bump occurs inadequate，Overflow valve has little time the problem opened，Monomer hydraulic bracket bending when stopping or alleviate bump、Fracture and detonation situation，Press effect with playing preferable protecting against shock，The most conveniently replaced expansion tube parts.
Accompanying drawing explanation
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is mining diameter-expanding type anti-impact single hydraulic bracket structure chart.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure, 1-steel plate；2-expansion tube；2-1-expanding set inserting groove；The expanding set of 3-；4-anti-dumping set；5-monomer hydraulic bracket.
Detailed description of the invention
Embodiment, referring to the drawings 1, 2, mining diameter-expanding type anti-impact single hydraulic bracket is that the upper main body making monomer hydraulic bracket 5 makes reducing boss shape, coincideing the expansion tube 2 of similar shape with monomer hydraulic bracket 5 with expanding set inserting groove 2-1 is filled on the reducing convex platform of monomer hydraulic bracket 5, expanding set inserting groove 2-1 is to overturn to form at the horn opening of expansion tube 2 lower end, monomer hydraulic bracket 5 lower end external diameter forms a shoulder with upper end external diameter, monomer hydraulic bracket 5 is screwed with anti-dumping set 4 and is connected, anti-dumping set 4 is sleeved on outside expanding set inserting groove 2-1 to be placed, the expanding set 3 of plug-in mounting upper end closed in expanding set inserting groove 2-1, the inner sealing end of expanding set 3 is connected with the top of expansion tube 2, it is welded and fixed steel plate 1 on the top of expanding set 3.
The operation principle of mining diameter-expanding type anti-impact single hydraulic bracket is: one end of expanding set 3 is installed in the expansion tube inserting groove 2-1 of horn opening upset of expansion tube 2 lower end, it is connected with expansion tube 2 at expanding set 3 other end closing, when monomer hydraulic bracket 5 is hit, expanding set 3 just plays one end and draws expansion tube 2, other end pressure expansion tube 2, can effectively make the uniform expanding energy-absorbing of expansion tube 2, it is ensured that shock resistance resistance is more steady.Anti-dumping external threading is connected on unit hydraulic support 5 in main body, fixes and limits expansion tube 2 and the direction of motion of expanding set 3, drift condition during effectively preventing expansion tube 2 expanding, it is ensured that anti-impact force is more steady.Steel plate 1 is welded on the top of expanding set 3 increases coal petrography and monomer hydraulic bracket 5 contact area, prevents monomer hydraulic bracket 5 to be pressed in coal seam, and the initial of expansion tube 2 expands the power initial support ability more than hydraulic support 5, it is ensured that expansion tube 2 is intact under normal pressure.
Claims (1)
1. a mining diameter-expanding type anti-impact single hydraulic bracket, including monomer hydraulic bracket (5), steel plate (1), the upper main body that it is characterized in that monomer hydraulic bracket (5) is reducing boss shape, band expansion tube inserting groove (2-1) the expansion tube (2) of the similar shape identical with monomer hydraulic bracket (5) is filled on the reducing boss of monomer hydraulic bracket (5), the expanding set (3) of plug-in mounting upper end closed in expansion tube inserting groove (2-1), in the closing of expanding set (3), top is connected with expansion tube (2) top, threaded equipped with anti-dumping set (4) in expanding set (3) periphery with monomer hydraulic bracket (5), top fixation steel plate (1) at expanding set (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660119.7A CN103628901B (en) | 2013-12-10 | 2013-12-10 | Mining diameter-expanding type anti-impact single hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310660119.7A CN103628901B (en) | 2013-12-10 | 2013-12-10 | Mining diameter-expanding type anti-impact single hydraulic bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103628901A CN103628901A (en) | 2014-03-12 |
| CN103628901B true CN103628901B (en) | 2016-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310660119.7A Expired - Fee Related CN103628901B (en) | 2013-12-10 | 2013-12-10 | Mining diameter-expanding type anti-impact single hydraulic bracket |
Country Status (1)
| Country | Link |
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| CN (1) | CN103628901B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130953A (en) * | 2019-05-23 | 2019-08-16 | 辽宁工程技术大学 | A kind of compound erosion control energy absorption device |
| CN112832830B (en) * | 2020-12-31 | 2022-12-06 | 山东省煤田地质规划勘察研究院 | Mining anti-impact double-column combined pier column structure, supporting system and construction method |
| CN113175338A (en) * | 2021-06-10 | 2021-07-27 | 福州大学 | Stack type support with impact-resistant hydraulic prop and working method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2150005C1 (en) * | 1999-03-24 | 2000-05-27 | Институт горного дела СО РАН | Hydraulic prop with protection from dynamic loads |
| CN201696063U (en) * | 2010-06-08 | 2011-01-05 | 辽宁工程技术大学 | Hard-soft energy-absorbing coupling monomer bracket device |
| CN102182478A (en) * | 2011-05-16 | 2011-09-14 | 辽宁工程技术大学 | Fast wave eliminating/energy dissipating/cushioning device for mining |
| CN102606177A (en) * | 2012-03-28 | 2012-07-25 | 北京诚田恒业煤矿设备有限公司 | Hydraulic prop for hydraulic support system |
| CN103321660A (en) * | 2013-06-25 | 2013-09-25 | 辽宁工程技术大学 | Mining constant-resistance yielding energy-absorbing impact-resisting supporting device |
-
2013
- 2013-12-10 CN CN201310660119.7A patent/CN103628901B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2150005C1 (en) * | 1999-03-24 | 2000-05-27 | Институт горного дела СО РАН | Hydraulic prop with protection from dynamic loads |
| CN201696063U (en) * | 2010-06-08 | 2011-01-05 | 辽宁工程技术大学 | Hard-soft energy-absorbing coupling monomer bracket device |
| CN102182478A (en) * | 2011-05-16 | 2011-09-14 | 辽宁工程技术大学 | Fast wave eliminating/energy dissipating/cushioning device for mining |
| CN102606177A (en) * | 2012-03-28 | 2012-07-25 | 北京诚田恒业煤矿设备有限公司 | Hydraulic prop for hydraulic support system |
| CN103321660A (en) * | 2013-06-25 | 2013-09-25 | 辽宁工程技术大学 | Mining constant-resistance yielding energy-absorbing impact-resisting supporting device |
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| Publication number | Publication date |
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| CN103628901A (en) | 2014-03-12 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Kai Inventor after: Xu Lianman Inventor after: Tang Zhi Inventor after: Zhang Yanping Inventor after: Cao Juan Inventor after: Sun Jianqiang Inventor after: Zhao Xin Inventor after: Luan Lijun Inventor after: Li Ruyu Inventor after: Fu Zhiguo Inventor before: Chen Kai Inventor before: Tang Zhi Inventor before: Sun Jianqiang Inventor before: Luan Lijun Inventor before: Cao Juan Inventor before: Li Ruyu Inventor before: Fu Zhiguo Inventor before: Xu Lianman |
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| COR | Change of bibliographic data | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20171210 |