CN101333927B - High pressure setting system without high-pressure pump and its method for controlling high pressure setting - Google Patents
High pressure setting system without high-pressure pump and its method for controlling high pressure setting Download PDFInfo
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- CN101333927B CN101333927B CN2008101043579A CN200810104357A CN101333927B CN 101333927 B CN101333927 B CN 101333927B CN 2008101043579 A CN2008101043579 A CN 2008101043579A CN 200810104357 A CN200810104357 A CN 200810104357A CN 101333927 B CN101333927 B CN 101333927B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002441 reversible effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 210000005239 tubule Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Abstract
The invention discloses a high-pressure initial system without a high-pressure pump and the method used for controlling the high-pressure initial support, which comprises an upright column; the upright column is connected with a pressurizing cylinder; the piston rod cavity of the pressurizing cylinder is connected with the upright column; the pipe lifting pipeline is connected with the piston rod cavity of the pressurizing cylinder through a liquid-filled unidirectional lock; the piston cavity of the pressurizing cylinder is connected with a pressurizing control pipeline; the liquid control opening of the liquid-filled unidirectional lock is connected with the pressurizing control pipeline. The pressurizing cylinder can be a special pressure charger or a bottom lifting jack or other types of jacks. When the column is lifted, firstly, the lifting column control is processed, the pressurizing control is processed while the column lifting control is maintained and the required initial support force is acquired; wherein, the pressurizing control can be the bottom lifting control or the column descending control. The high-pressure initial system which is without a high-pressure pump and the method used for controlling the high-pressure initial support have the advantages of safety, reliability, low cost, simple and convenient operation.
Description
Technical field
The present invention relates to a kind of mine roof support technology, relate in particular to a kind of the do not have first support system of high pressure of high-pressure pump and the method that the control high pressure just supports thereof.
Background technology
Generally that use, that be used for hydraulic support at present power source pumping plant pressure mostly is 31.5MPa greatly.For supporting roof better, the current high-pressure pump with 40～50MPa, the setting prop system that supercharger improves the bracket upright post setting load of having occurred.
The first support system of the high pressure of hydraulic support is fed to each support with high-pressure working medium through high-pressure hose 11 with the 40MPa high-pressure pump as shown in Figure 1 in the prior art.Remove gauge tap valve 12 with special-purpose electromagnetic priority valve 13 and main valve 14 in the support, the actuating medium of 40MPa is supplied with the column cavity of resorption through unidirectional lock 15, realize setting prop.
There is following shortcoming at least in above-mentioned prior art:
High pressure just supports to be needed to be equipped with special-purpose electromagnetic priority valve, main valve, switch valve, also needs electric controller, pressure transducer to gather cavity pressure under the column, issues an order after the analysis and judgement to start high pressure support system just.Electric controller, pressure sensor failure and pressure transducer precision are low all to influence the pressure precision that high pressure just supports startup, causes the many consumption to the high-pressure system flow.Poor stability, complicated operation.
Summary of the invention
The purpose of this invention is to provide a kind of first support system of high pressure safe, easy-operating no high-pressure pump and control high pressure thereof the method for support just.
The objective of the invention is to be achieved through the following technical solutions:
The high pressure of no high-pressure pump of the present invention is support system just, comprise column, described column is connected with the setting prop pipeline, described column also is connected with pressurized cylinder, the rod end chamber of described pressurized cylinder is connected with described column by the supercharging retaining valve, described setting prop pipeline is connected with the rod end chamber of described pressurized cylinder by the unidirectional lock of topping up, and the plunger shaft of described pressurized cylinder is connected with the boost control pipeline, and the hydraulic control mouth of the unidirectional lock of described topping up is connected with described boost control pipeline.
The high pressure of above-mentioned no high-pressure pump of the present invention support system control just high pressure is the method for support just, comprises step:
At first, carry out setting prop control by the setting prop pipeline;
Then, when keeping setting prop control, carry out boost control by the boost control pipeline.
As seen from the above technical solution provided by the invention, the high pressure of no high-pressure pump of the present invention is support system and the first method that supports of control high pressure thereof just, because column is connected with pressurized cylinder, the rod end chamber of pressurized cylinder is connected with column, the setting prop pipeline is connected with the rod end chamber of pressurized cylinder by the unidirectional lock of topping up, the plunger shaft of pressurized cylinder is connected with the boost control pipeline, and the hydraulic control mouth of the unidirectional lock of topping up is connected with the boost control pipeline.During setting prop, at first carry out setting prop control, after setting prop arrives preset threshold, when keeping setting prop control, carry out boost control, reach the high pressure setting load.Safe, easy to operate.
Description of drawings
Fig. 1 is the schematic diagram of the first support system of high pressure of hydraulic support in the prior art;
Fig. 2 is the first schematic diagram of the specific embodiment one of support system of high pressure of no high-pressure pump of the present invention;
Fig. 3 is the first schematic diagram of the specific embodiment two of support system of high pressure of no high-pressure pump of the present invention;
Fig. 4 is the first schematic diagram of the specific embodiment three of support system of high pressure of no high-pressure pump of the present invention;
Fig. 5 is the first schematic diagram of the specific embodiment four of support system of high pressure of no high-pressure pump of the present invention.
Embodiment
The high pressure of no high-pressure pump of the present invention is support system just, and its preferable specific embodiment one comprises column 1 as shown in Figure 2, and column 1 is connected with setting prop pipeline 3 and falls column jecket road 8, is respectively applied for to realize setting prop control and fall post control.Setting prop pipeline 3 is connected with the cavity of resorption of column 1 by the unidirectional lock 2 of setting prop.
The rod end chamber of pressurized cylinder 6 is connected with the cavity of resorption of column 1 by pressure duct 5, supercharging retaining valve 4, and supercharging retaining valve 4 is relative with the direction of the unidirectional lock 2 of setting prop.Setting prop pipeline 3 also is connected with the rod end chamber of pressurized cylinder 6 by charging line 9, the unidirectional lock 10 of topping up, is used to the rod end chamber topping up of pressurized cylinder 6.The plunger shaft of pressurized cylinder 6 is connected with boost control pipeline 7, and the hydraulic control mouth of the unidirectional lock 10 of topping up is connected with boost control pipeline 7.Boost control pipeline 7 can also can be to fall column jecket road 8 or other pipeline etc. for lifting the bottom tube road.Can also connect on the pressure duct 5 on safety valve, the boost control pipeline 7 as required and can connect one-way throttle valve etc.
Specific embodiment two as shown in Figure 3, setting prop pipeline 3 connects reversible locks 16 by charging line 9, the outlet of reversible lock 16 corresponding charging lines 9 is connected with the rod end chamber of pressurized cylinder 6; Another outlet of reversible lock 16 is connected to pressurized cylinder 6 plunger shaft, and the inlet of its correspondence connects boost control pipeline 7.All the other are identical with specific embodiment one.
Specific embodiment three as shown in Figure 4, the unidirectional lock 10 of topping up that replaces in the specific embodiments one with a three-position four-way valve with one-way function 17.
Specific embodiment four as shown in Figure 5, boost control pipeline 7 is connected to and falls column jecket road 8, just supports by falling column jecket road 8 control high pressure.
The high pressure of the no high-pressure pump that the present invention is above-mentioned support system control just high pressure is the method for support just, comprises step:
At first, carry out setting prop by setting prop pipeline 3; Then, when keeping setting prop, carry out boost control by boost control pipeline 7.The beginning high pressure column cavity of resorption pressure threshold of support just can be set, when setting prop control reaches this pressure threshold, the beginning boost control.
When carrying out boost control, the piston of pressurized cylinder 6 can the Halfway Stopping boost control, and is controlled to be the rod end chamber topping up by setting prop, and then carries out boost control, but this process repeated multiple times reaches requirement until the setting load of column 7.
When the setting load of column 1 reaches requirement, can stop boost control, and keep setting prop control 1～3 second or the longer time, the rod end chamber topping up.After stopping setting prop, do very brief boost control, with the pressure in the removal pressure duct 5.
Above-mentioned boost control can also can be the boost control of setting up separately for lifting end control or falling post control, also can be other control.Boost control and setting prop control can be passed through same Hydraulic Station feed flow.
So that end lifting jack is a pressurized cylinder, to be controlled to be boost control be example to lift the end with lifting, principle of work of the present invention is described in detail below:
Control by setting prop, make the liquid (as the liquid of 31.5MPa pressure) of high-capacity pump station output enter column 1 cavity of resorption through unidirectional lock 2, and its just support pressure can be elevated to pumping plant at that time output pressure (because pumping plant has the automatic deloading valve, its pressure unloading the highest (as 31.5MPa), but recovering pressure, it to hang down (as 26MPa), control by setting prop this moment, one road liquid enters the rod end chamber of lifting end lifting jack 6, its piston rod is regained, finished the topping up process of lifting end lifting jack (pressurized cylinder) simultaneously.When setting prop control reaches the pressure threshold of setting, continue to keep setting prop control, to give again and lift end control, the plunger shaft of then lifting end lifting jack also enters the pressure liquid from pumping plant.Owing to do not waited by the hydraulic action area, formed the supercharger effect, the liquid after the rod end chamber supercharging enters the column cavity of resorption through pressure duct 5, supercharging retaining valve 4, has increased pressure, has improved the column setting load.When a supercharging can't meet the demands, can stop to lift end control, setting prop control can be opened unidirectional lock 10 of topping up or embodiment three reversible locks 16 among the embodiment two, opens and lifts jack piston chamber, end back flow channel, and setting prop liquid entered once more and lifted jack piston rod chamber, the end topping up this moment.Then, give once more and lift end control, improve cavity pressure under the column once more, promptly improve the column setting load once more, can be back and forth several times.After reaching requirement, stop to lift end control at once, but can keep setting prop control several seconds (can be only 1～2S) so that regain the piston rod of lifting end lifting jack.After stopping setting prop control, can lift end control by very brief this, produce fine motion and get final product, purpose is the pressure in the removal pressure duct 5.
The present invention is provided with pressurized cylinder in hydraulic support, needn't little pressurized cylinder all be arranged every root post, but every can be had only a pressurized cylinder.Simply, economy.Can be by automatically controlled programmed control; Also can not rely on automatically controlled.Pressurized energy that can be as required, big pump pressure design the pressurized cylinder of special coupling.And what bear supercharging can be the tubule of low discharge, as DN10, DN8, DN6 tubule, steel pipe etc.The ascending, descending control of column can also be by own original major path flexible pipe, unidirectional lock etc.Therefore lifting column speed is fast.
Among the present invention, also there is high pressure in high pressure without any flexible pipe after just support is finished, safety, reliable, cost is low, simple to operation.
The present invention is provided with supercharger in support, can be independent special-purpose, also can use certain lifting jack double as supercharger in the support, when setting prop control exists, give boost control again, the column cavity of resorption can be brought up to more than the 42MPa with the first support pressure behind 31.5MPa pressure, the high-capacity pump station setting prop again.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (7)
1. the first support system of a high pressure that does not have a high-pressure pump, comprise column, described column is connected with the setting prop pipeline, it is characterized in that, described column also is connected with pressurized cylinder, and the rod end chamber of described pressurized cylinder is connected with described column by the supercharging retaining valve, and described setting prop pipeline is connected with the rod end chamber of described pressurized cylinder by the unidirectional lock of topping up, the plunger shaft of described pressurized cylinder is connected with the boost control pipeline, and the hydraulic control mouth of the unidirectional lock of described topping up is connected with described boost control pipeline.
2. the first support system of the high pressure of no high-pressure pump according to claim 1 is characterized in that be connected with reversible lock on the described boost control pipeline, the hydraulic control mouth of described reversible lock is connected with described setting prop pipeline.
3. the first support system of the high pressure of no high-pressure pump according to claim 1 and 2 is characterized in that described pressurized cylinder is used for the supercharger of supercharging or lifts end lifting jack for independently sole duty being set.
4. the first support system of the high pressure of no high-pressure pump according to claim 3 is characterized in that described boost control pipeline is for lifting the bottom tube road or falling the column jecket road.
5. the first support system control method of the high pressure of each described no high-pressure pump of claim 1 to 4 is characterized in that, comprises step:
At first, carry out setting prop control by the setting prop pipeline;
Then, when keeping setting prop control, carry out boost control by the boost control pipeline;
When carrying out described boost control, when the piston of described pressurized cylinder stops supercharging and moves, then stop boost control, and be controlled to be the rod end chamber topping up of described pressurized cylinder by setting prop, and then carry out boost control, this process repeated multiple times reaches requirement until the setting load of described column;
When the setting load of described column reaches requirement, stop boost control, and keep described setting prop control 1～3 second;
After keeping described setting prop control 1～3 second, very brief described boost control is used for the pressure of removal pressure duct.
6. the first support system control method of the high pressure of no high-pressure pump according to claim 5 is characterized in that, described boost control is for lifting end control or falling post control.
7. the first support system control method of the high pressure of no high-pressure pump according to claim 5 is characterized in that, described boost control and the control of described setting prop are by same Hydraulic Station feed flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101043579A CN101333927B (en) | 2008-04-17 | 2008-04-17 | High pressure setting system without high-pressure pump and its method for controlling high pressure setting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101043579A CN101333927B (en) | 2008-04-17 | 2008-04-17 | High pressure setting system without high-pressure pump and its method for controlling high pressure setting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101333927A CN101333927A (en) | 2008-12-31 |
| CN101333927B true CN101333927B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101043579A Active CN101333927B (en) | 2008-04-17 | 2008-04-17 | High pressure setting system without high-pressure pump and its method for controlling high pressure setting |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883338B (en) * | 2014-03-26 | 2016-02-10 | 安徽理工大学 | A kind of hydraulic support column self-boosting system containing hydraulic intensifier |
| RU2691793C2 (en) * | 2014-08-28 | 2019-06-18 | ДЖОЙ ГЛОБАЛ АНДЕРГРАУНД МАЙНИНГ ЭлЭлСи | Monitoring of roof fastening in solid development system |
| CN104502079A (en) * | 2014-12-15 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Stand column dynamic test device |
| CN104819840B (en) * | 2015-05-22 | 2018-08-24 | 焦作欣扬程煤矿设备有限公司 | A kind of double pressure cylinder test stands |
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Address after: 100013, room 5, Tiandi building, 102 Youth Road, Chaoyang District, Beijing, Hepingli Patentee after: CCTEG Beijing Tianma Intelligent Control Technology Co.,Ltd. Address before: 100013, room 5, Tiandi building, 102 Youth Road, Chaoyang District, Beijing, Hepingli Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. |
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