CN103557016B - A kind of multistage erosion control pillar - Google Patents
A kind of multistage erosion control pillar Download PDFInfo
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- CN103557016B CN103557016B CN201310557912.4A CN201310557912A CN103557016B CN 103557016 B CN103557016 B CN 103557016B CN 201310557912 A CN201310557912 A CN 201310557912A CN 103557016 B CN103557016 B CN 103557016B
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Abstract
The present invention discloses a kind of multistage erosion control pillar, comprise top cover, energy-absorbing cylinder top cover, hydraulic column, multistage liquid energy-absorbing cylinder, groove energy-absorbing cylinder, hydraulic cylinder top cover, aluminium alloy cylinder pressure, piston, hydraulic cylinder base, triple-use valve etc., described multistage liquid energy-absorbing jacket casing is contained in hydraulic column, described hydraulic column is sleeved in prefabricated groove energy-absorbing cylinder, described prefabricated groove energy-absorbing jacket casing is contained in high-strength light hydraulic cylinder, under strong moving load condition, multistage hydraulic energy-absorbing cylinder is utilized to step down fast energy-absorbing, prevent impacting instantaneous hydraulic in-cylinder pressure and sharply increase damage triple-use valve inner member and hydraulic column cylinder, realize absorbing the energy that bump is applied to pillar fast, and use long-range triple-use valve can realize long-range lifting support function, the country rock realizing bringing when falling post is caving and injures personnel, ensure the personal safety of constructor.
Description
Technical field
The present invention relates to a kind of mining supports equipment, particularly relate to a kind of multistage erosion control pillar.
Background technology
Along with the increase of coal mining depth, the problem of impulsion pressure is day by day serious, the Normal hydraulic pillar used in current tunnel, thump dynamic loading due to bump generation usually exceeds the strength range of hydraulic prop, the drain age velocity of hydraulic prop safety valve and limited flow, hydraulic support can not be stepped down release in time, hydraulic prop pressure in the short time is caused to exceed the scope that can bear, cause column to bend, pressure be thick, the breakoff phenomenon such as explosion and fracture, hydraulic support is destroyed, tunnel caves in, serious threat to personnel safety and to slow down manufacturing schedule.
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of multistage erosion control pillar, slowly stepped down when both having met tunnel quasistatic, ensure that poppet pressure is can in tolerance range, when meeting again the distortion of bump tunnel Quasi dynamic, support steps down fast, reduce shock loading to the pressure of support, guarantee that strut pressure is can within tolerance range.
To achieve these goals, the present invention adopts a kind of multistage erosion control pillar, comprises top cover 1, hydraulic column 2, piston 11, back-moving spring 7, hydraulic cylinder top cover 8, aluminium alloy cylinder pressure 10, hydraulic cylinder base 12, triple-use valve 13; The top of hydraulic column 2 connects top cover 1, and bottom connects piston 11, and hydraulic column 2 is nested in the inside of aluminium alloy cylinder pressure 10, and the top of described aluminium alloy cylinder pressure 10 arranges hydraulic cylinder top cover 8, and bottom is fixedly connected with hydraulic cylinder base 12; A suit multistage liquid energy-absorbing cylinder in described hydraulic column 2, described multistage liquid energy-absorbing cylinder comprises ecto-entad nested first carbon fiber cylinder 3, energy-absorbing disk stationary magazine creel 4 successively, the top of described energy-absorbing disk stationary magazine creel 4 is fixedly connected with energy-absorbing cylinder top cover 16, back-moving spring 7 one end is fixedly connected with energy-absorbing disk stationary magazine creel 4 inwall, the other end is fixedly connected with hydraulic cylinder base 12, in the inside of energy-absorbing disk stationary magazine creel 4, at least one energy-absorbing disk 5 is set, described energy-absorbing disk 5 is arranged on back-moving spring 7, and is fixedly linked with energy-absorbing disk stationary magazine creel 4.
Preferably, described energy-absorbing disk 5 surface arranges triangle pre-groove 51.
Further preferably, at hydraulic column 2 external surface suit groove energy-absorbing cylinder 6, described groove energy-absorbing cylinder 6 is placed on hydraulic cylinder top cover 8.
Further preferably, the external surface of described groove energy-absorbing cylinder 6 has orthogonal axial triangle pre-groove 61 and circumferential triangle pre-groove 62.
Further preferably, the outside nested second carbon fiber cylinder 9 of described aluminium alloy cylinder pressure 10, the second described carbon fiber cylinder 9 and aluminium alloy cylinder pressure 10 bonding connection.
Further preferably, the bottom of described aluminium alloy cylinder pressure 10 is provided with triple-use valve connecting hole 13, and described triple-use valve 13 is communicated by the inside of triple-use valve connecting hole 14 with aluminium alloy cylinder pressure 10.
Further preferably, the external surface of described piston 11 is provided with guide groove, arranges piston packing 15 in guide groove.
Further preferably, described triple-use valve 13 comprises one way valve, safety valve and pressure-relief valve.
Further preferably, described triple-use valve 13 is long-range triple-use valve.
Adopt the present invention of technique scheme compared with prior art, the multistage liquid energy-absorbing cylinder arranged in hydraulic column 2 is by energy-absorbing disk stationary magazine creel 4, energy-absorbing disk 5 and the carbon fiber cylinder 3 be fixedly connected on outside energy-absorbing cylinder are formed, when the fluid pressure in cylinder body exceedes the fracture strength of the energy-absorbing disk 5 of multistage liquid energy-absorbing cylinder, energy-absorbing disk 5 breaks, liquid in hydraulic cylinder is made to enter into multistage liquid energy-absorbing cylinder fast, play the effect that quick energy-absorbing is stepped down, strengthen the resistance of failure of hydraulic column, realize segmentation energy-absorbing, the shortcoming of energy-absorbing function is lost after overcoming the Hair Fixer life of one-shot ground.
The present invention is when roadway surrounding rock Rheological Deformation; adopt triple-use valve to have hydraulic pressure and slowly allow bit function; ensure that hydraulic prop pressure is can within tolerance range; under there is moment thump in bump; multistage liquid energy-absorbing cylinder has hydraulic pressure and to step down fast energy-absorbing function; consume impact energy, prevent impacting instantaneous hydraulic in-cylinder pressure and sharply increase, protection hydraulic prop exempts from impact failure and damages triple-use valve inner member and lose enabling capabilities.Under moving load condition, multistage liquid energy-absorbing cylinder and groove energy-absorbing cylinder, can realize stepping down fast, absorbs the energy that bump is applied to pillar fast.The present invention integrates the protection of static pressure hydraulic safe, impacts hydraulic pressure erosion control energy-absorbing and surge elastoplasticity assembly energy-absorbing, and energy-absorbing shock-absorbing capacity is strong, and simplicity of design, function is many, and expense is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multistage erosion control pillar of the present invention;
Fig. 2 is the structural representation of groove energy-absorbing cylinder of the present invention;
Fig. 3 is energy-absorbing disc structure schematic diagram of the present invention.
Wherein in figure: 1-top cover, 2-hydraulic column, 3-first carbon fiber cylinder, 4-energy-absorbing disk stationary magazine creel, 5-energy-absorbing disk, 6-groove energy-absorbing cylinder, 7-back-moving spring, 8-hydraulic cylinder top cover, 9-second carbon fiber cylinder, 10-aluminium alloy cylinder pressure, 11-piston, 12-hydraulic cylinder base, 13-triple-use valve, 14-triple-use valve connecting hole, 15-piston packing, 16-energy-absorbing cylinder top cover, the axial triangle pre-groove of 61-energy-absorbing cylinder, 62-energy-absorbing cylinder circumference triangle pre-groove, 51-triangle pre-groove.
Detailed description of the invention
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Embodiment, with reference to the multistage erosion control pillar of one shown in accompanying drawing 1, comprises top cover 1, hydraulic column 2, piston 11, back-moving spring 7, hydraulic cylinder top cover 8, aluminium alloy cylinder pressure 10, hydraulic cylinder base 12, triple-use valve 13; The top of hydraulic column 2 connects top cover 1, and bottom connects piston 11, and arrange guide groove at the external surface of piston 11, arrange piston packing 15 in guide groove, alloy hydraulic cylinder 10 serves hydraulic packing effect.Hydraulic column 2 is nested in the inside of aluminium alloy cylinder pressure 10, and the top of described aluminium alloy cylinder pressure 10 arranges hydraulic cylinder top cover 8, and bottom is fixedly connected with hydraulic cylinder base 12; Nested second carbon fiber cylinder 9, the second carbon fiber cylinder 9 of external surface of aluminium alloy cylinder pressure 10 and aluminium alloy cylinder pressure 10 bonding connection, add supporting intensity, prevent post bends, explosion, alleviate pillar weight simultaneously, be beneficial to carrying and installation.A suit multistage liquid energy-absorbing cylinder in described hydraulic column 2, described multistage liquid energy-absorbing cylinder comprises ecto-entad nested first carbon fiber cylinder 3, energy-absorbing disk stationary magazine creel 4 successively, the top of described energy-absorbing disk stationary magazine creel 4 is fixedly connected with energy-absorbing cylinder top cover 16, back-moving spring 7 one end is fixedly connected with energy-absorbing disk stationary magazine creel 4 inwall, the other end is fixedly connected with hydraulic cylinder base 12, in the inside of energy-absorbing disk stationary magazine creel 4, at least one energy-absorbing disk 5 is set, described energy-absorbing disk 5 is arranged on back-moving spring 7, and is fixedly linked with energy-absorbing disk stationary magazine creel 4.
The bottom of aluminium alloy cylinder pressure 10 is provided with triple-use valve connecting hole 13, described triple-use valve 13 is communicated by the inside of triple-use valve connecting hole 14 with aluminium alloy cylinder pressure 10, in hydraulic cylinder, highly pressurised liquid is injected by triple-use valve 13, hydraulic column 2, piston 11 and multistage liquid energy-absorbing cylinder upwards rise, and carry out supporting to tunnel.When hydraulic column 2 is slowly out of shape by top cover 1 on-load pressure; when on-load pressure exceedes the safe pressure of safety valve, in post, liquid flows out from safety valve, reduces fluid pressure in pillar cylinder; make fluid pressure in hydraulic cylinder be no more than pillar authorized pressure, protection hydraulic prop exempts from destruction.In top cover 1 deformation process, hydraulic column 2 shrinks, and when hydraulic column top cover 1 is down to groove energy-absorbing cylinder 6 top soon, should carries out the work of expansion lane, avoid groove energy-absorbing cylinder 6 to be extruded destruction under static load condition.
When occurring to impact, in hydraulic cylinder, fluid pressure sharply increases, as Fig. 1, shown in Fig. 3, 4 energy-absorbing disks 5 are set in energy-absorbing disk stationary magazine creel 4, energy-absorbing disk 5 arranges triangle pre-groove 51, when fluid pressure exceedes energy-absorbing disk 5 fracture strength of multistage liquid energy-absorbing cylinder, orlop energy-absorbing disk 5 can break along triangle pre-groove 51, in hydraulic cylinder, liquid enters in multistage liquid energy-absorbing cylinder fast, play the effect of stepping down of quick energy-absorbing, if impact energy is very large, multistage liquid energy-absorbing cylinder continues to decline, the energy-absorbing disk 5 of last layer continues to break, to step down further energy-absorbing, by that analogy, achieve the effect of segmentation energy-absorbing.
When hydraulic column top cover 1 is compressed to groove energy-absorbing cylinder 6, groove energy-absorbing cylinder 6 rolls up the absorption energy that breaks outside the taper platform generation of top cover 1, as shown in Figure 2, groove energy-absorbing cylinder 6 external surface has the triangle pre-groove 62 of orthogonal axial triangle pre-groove 61 and circumference, energy-absorbing cylinder axially triangle pre-groove 61 breaks outer volume, the even energy-absorbing of bursting force, groove energy-absorbing cylinder 6 stops breaking according to the triangle pre-groove 62 of prefabricated circumference, makes each energy-absorbing even.Groove energy-absorbing disk 5 continues to break until fluid pressure is reduced to safety value in hydraulic cylinder.
When roof rock mass is more broken, when lifting column is dangerous, realizes Long-distance Control lifting column by long-range triple-use valve distant control function, realize long-range lifting column operation by long-range use independent Long-distance Control triple-use valve.Present invention achieves tunnel pillar to become step down energy-absorbing, high speed impact large discharge of large deformation quasistatic at tunnel stream and to step down energy-absorbing and long-range remote control function, prevent pillar from destroying completely under impact condition, lose enabling capabilities, ensure the personal safety of constructor.
Under static load condition, utilize external long-range triple-use valve to step down release, and there is liquid filling pole-raising, post falls in tapping, static pressure safeguard protection and remote control function.Under moving load condition, utilize multistage liquid energy-absorbing cylinder to step down release, realize the flush-prevention function absorbing country rock impact energy fast, hydraulic cylinder adopts carbon fibre composite and high-strength aluminum alloy material, can strengthen supporting intensity, alleviate pillar weight.
Claims (7)
1. a multistage erosion control pillar, comprise top cover (1), hydraulic column (2), piston (11), hydraulic cylinder top cover (8), back-moving spring (7), aluminium alloy cylinder pressure (10), hydraulic cylinder base (12), triple-use valve (13), it is characterized in that: the top of hydraulic column (2) connects top cover (1), bottom connects piston (11), hydraulic column (2) is nested in the inside of aluminium alloy cylinder pressure (10), the top of described aluminium alloy cylinder pressure (10) arranges hydraulic cylinder top cover (8), bottom is fixedly connected with hydraulic cylinder base (12), a suit multistage liquid energy-absorbing cylinder in described hydraulic column (2), described multistage liquid energy-absorbing cylinder comprises ecto-entad nested first carbon fiber cylinder (3) successively, energy-absorbing disk stationary magazine creel (4), the top of described energy-absorbing disk stationary magazine creel (4) arranges energy-absorbing cylinder top cover (16), back-moving spring (7) one end is fixedly connected with energy-absorbing disk stationary magazine creel (4) inwall, the other end is fixedly connected with hydraulic cylinder base (12), at least one energy-absorbing disk (5) is set in the inside of energy-absorbing disk stationary magazine creel (4), described energy-absorbing disk (5) is arranged on back-moving spring (7), and be fixedly linked with energy-absorbing disk stationary magazine creel (4), described energy-absorbing disk (5) surface arranges triangle pre-groove (51), at hydraulic column (2) external surface suit groove energy-absorbing cylinder (6), described groove energy-absorbing cylinder (6) is placed on hydraulic cylinder top cover (8).
2. multistage erosion control pillar as claimed in claim 1, is characterized in that: the external surface of described groove energy-absorbing cylinder (6) has orthogonal axial triangle pre-groove (61) and circumferential triangle pre-groove (62).
3. multistage erosion control pillar as claimed in claim 1, it is characterized in that: described aluminium alloy cylinder pressure (10) outside nested second carbon fiber cylinder (9), the second described carbon fiber cylinder (9) and aluminium alloy cylinder pressure (10) bonding connection.
4. the multistage erosion control pillar as described in claim 1 or 3, it is characterized in that: the bottom of described aluminium alloy cylinder pressure (10) is provided with triple-use valve connecting hole (14), described triple-use valve (13) is communicated by the inside of triple-use valve connecting hole (14) with aluminium alloy cylinder pressure (10).
5. multistage erosion control pillar as claimed in claim 1, is characterized in that: the external surface of described piston (11) is provided with guide groove, arranges piston packing (15) in guide groove.
6. multistage erosion control pillar as claimed in claim 1, is characterized in that: described triple-use valve (13) comprises one way valve, safety valve and pressure-relief valve.
7. multistage erosion control pillar as claimed in claim 1, is characterized in that: described triple-use valve (13) is long-range triple-use valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310557912.4A CN103557016B (en) | 2013-11-08 | 2013-11-08 | A kind of multistage erosion control pillar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310557912.4A CN103557016B (en) | 2013-11-08 | 2013-11-08 | A kind of multistage erosion control pillar |
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| CN103557016A CN103557016A (en) | 2014-02-05 |
| CN103557016B true CN103557016B (en) | 2015-07-29 |
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| CN201310557912.4A Expired - Fee Related CN103557016B (en) | 2013-11-08 | 2013-11-08 | A kind of multistage erosion control pillar |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9381879B2 (en) | 2014-11-12 | 2016-07-05 | GM Global Technology Operations LLC | Local energy absorber |
| US10092055B2 (en) * | 2016-01-06 | 2018-10-09 | GM Global Technology Operations LLC | Local energy absorber |
| CN109058227B (en) * | 2018-06-13 | 2020-04-07 | 江苏亨睿碳纤维科技有限公司 | Carbon fiber oil cylinder base and preparation process thereof |
| CN111044350B (en) * | 2019-12-13 | 2022-06-03 | 辽宁工程技术大学 | Rigid impact protection device is prevented to impact test platform |
| CN113958366B (en) * | 2020-07-21 | 2022-07-22 | 辽宁大学 | Dynamic quantitative early warning method for impact risk based on vibration-stress double-field monitoring |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86203286U (en) * | 1986-05-23 | 1987-09-16 | 通化市煤矿机械厂 | Individual hydraulic prop with light alloy-core tube |
| RU2210669C2 (en) * | 2001-11-27 | 2003-08-20 | Институт горного дела СО РАН | Hydraulic prop |
| CN100395430C (en) * | 2002-12-31 | 2008-06-18 | 中国矿业大学 | All in one hydraulic post column |
| CN2809216Y (en) * | 2005-04-19 | 2006-08-23 | 中国矿业大学 | Anti-impact protector for single hydraulic support |
| DE202007004101U1 (en) * | 2007-03-16 | 2007-05-24 | Bochumer Eisenhütte Heintzmann GmbH & Co. KG | Expanding support for mining, tunnel construction has clamping ring able to slide in annular piston, movable by linear piston, resting on inwardly protruding preferred breakage pin in initial position of inner tube, with peripheral groove |
| CN102562100A (en) * | 2010-12-13 | 2012-07-11 | 襄樊禹仁机电液压科技有限公司 | Automatic exhausting single hydraulic prop |
| CN102606177B (en) * | 2012-03-28 | 2014-05-14 | 北京诚田恒业煤矿设备有限公司 | Hydraulic prop for hydraulic support system |
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