CN204691795U - A kind of for coal face hydraulic support type selecting analog machine - Google Patents
A kind of for coal face hydraulic support type selecting analog machine Download PDFInfo
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- CN204691795U CN204691795U CN201520321792.2U CN201520321792U CN204691795U CN 204691795 U CN204691795 U CN 204691795U CN 201520321792 U CN201520321792 U CN 201520321792U CN 204691795 U CN204691795 U CN 204691795U
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- support
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- air bag
- vasculum
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Abstract
The utility model provides a kind of for coal face hydraulic support type selecting analog machine, and described system comprises simulation support, control cabinet and vasculum; Described simulation support is connected with control cabinet by sebific duct, and described control cabinet is connected with vasculum by data wire; Described control cabinet is used for the releasing pressure automatically of control simulation support, and feeds back in vasculum with electronic signal by data wire by the pressure that described simulation support bears, and described vasculum utilizes electronic signal to calculate the force value of simulation support.The utility model solves current laboratory and adopts rigid sensor to simulate the drawback of the phenomenon that hydraulic support can not realize coal wall caving, support is crushed to death; achieve the working condition analog simulation of simulation support overload protection and on-the-spot hydraulic support of mining; simplify in experimentation simultaneously and just support operation; determine setting load and the yield load of hydraulic support, can effectively help to hydraulic pressure Support selection.
Description
Technical field
The utility model relates to mining Equivalent Materials Testing equipment technical field, particularly a kind of for coal face hydraulic support type selecting analog machine.
Background technology
The simulation material of pressure sensor as actual coal face hydraulic support adopting rigidity in similarity simulation experiment at present more.Rigid pressure sensor has that exist with actual hydraulic pressure support much can not the drawback of matching, such as: rigid pressure sensor is difficult to realize operation, simultaneously rigid sensor that hydraulic support just supports and can not realizes the live work, the in addition coal face hydraulic support that contract under post of hydraulic support and can carry out pressure release when overloading and guarantee that the working resistance of hydraulic support is constant, also cannot accurate simulation in laboratory simulation.
Utility model content
For above-mentioned subproblem, the utility model provides a kind of for coal face hydraulic support type selecting analog machine, and described equipment comprises simulation support, control cabinet and vasculum; Described simulation support is connected with control cabinet by external pipe, and described control cabinet is connected with vasculum by data wire; Described control cabinet is used for the releasing pressure automatically of control simulation support, and feeds back in vasculum with electronic signal by data wire by the pressure that described simulation support bears, and electronic signal is converted to the force value of simulation support by described vasculum.
The utility model solves current laboratory and adopts rigid sensor to simulate the drawback of the phenomenon that hydraulic support can not realize coal wall caving, support is crushed to death; achieve the working condition analog simulation of simulation support overload protection and on-the-spot hydraulic support of mining; simplify in experimentation simultaneously and just support operation, Data support can be provided for the type selecting of actual hydraulic pressure support.
Accompanying drawing explanation
Fig. 1 one of the present utility model is used for coal face hydraulic support type selecting analog machine structural representation;
Simulation supporting structure schematic diagram in Fig. 2-1 the utility model embodiment;
In figure, 1 is air bag, and 2 is through hole, and 3 is boring, and 4 is upper supporting surface, and 5 is lower support face;
Fig. 2-2 is the left view that Fig. 2-1 simulates support;
In figure, 1 is air bag, and 3 is boring, and 4 is upper supporting surface, and 5 is lower support face.
Detailed description of the invention
In a basic embodiment, as shown in Figure 1, provide a kind of for coal face hydraulic support type selecting analog machine, described equipment comprises simulation support, control cabinet and vasculum; Described simulation support is connected with control cabinet by external pipe, and described control cabinet is connected with vasculum by data wire; Described control cabinet is used for the releasing pressure automatically of control simulation support, and feeds back in vasculum with electronic signal by data wire by the pressure that described simulation support bears, and electronic signal is converted to the force value of simulation support by described vasculum.
In this embodiment, just supportting operation by simplifying in experimentation, Data support can be provided for the type selecting of actual hydraulic pressure support.Can the releasing pressure automatically of control simulation support by control cabinet, achieve the working condition analog simulation of simulation support overload protection and on-the-spot hydraulic support of mining; Feed back in vasculum with electronic signal by data wire by the pressure that described simulation support bears, electronic signal is converted to the force value of simulation support by described vasculum.By subsequent artefacts or program, the force value of simulation support is carried out corresponding conversion, can obtain by the operating pressure of the coal face hydraulic support of simulating, and then provide Data support for actual coal face hydraulic support type selecting.
Preferably, described simulation support, by the cylinder using air bag to simulate coal-face liquid/gas pressure support, changes by the amount changing charge and discharge medium in air bag the size that the support force of support intended by coal-face liquid/gas pressing mold; Described medium comprises gas, liquid.Realize the constant-resistance of support by adopting air bag and kill the simulation of phenomenon.In air bag can topping up body also can inflatable body, when on-the-spot working resistance of support is excessive, by reduce institute's filling medium in air bag number facilitate pressure release, and when constant lower than maintenance air bag intermediary quality during setting value of pressure, conveniently can realize the constant-resistance of support.When work plane abutment pressure is larger, can there is situation about being crushed to death in on-the-spot support, and the present invention can simulate this process equally.When force value is always larger, simulation support upper backup pad will constantly reduce, and finally can cause the phenomenon simulating hydraulic support pushed down.Preferably, described medium is edible oil.
Preferably, described control cabinet comprises electromagnetic valve and hydrostatic sensor, and described electromagnetic valve is used for the releasing pressure automatically of control simulation support; Pressure in electromagnetic valve is converted into electronic signal by described hydrostatic sensor.By the lifting using control cabinet to control air bag, the operation away from work plane can be realized, more safe ready, and can effectively realize accurate simulation, make the force value of the simulation support finally obtained more accurate.
And for connection control case and the external pipe of simulating support, require that it has higher intensity, prevent it in experimentation, produce moderate finite deformation, the accuracy of impact experiment.When the advance of the face, coal seam covered top board generation absciss layer, rupture, be caving, turn round the power increase therefore acted on support, liquid pressurized pressure becomes large, due to liquid isotropism, pressure is wherein passed to the pressure sensor in control cabinet with rigid rubber pipe, by control cabinet by data wire by signal transmission to vasculum.
In one embodiment, there is boring the one end in described lower support face, and described boring is in the centre of the end face parallel with steel plate cross section, and the other end in described lower support face is closed; Described lower support face also has multiple through hole, and described through hole with in the plane of lower support face cross-section normal, and communicates with described boring; Air bag is had on described through hole, the upper and lower side of described air bag has mouth, described mouth is provided with metal flange, and described air bag is connected with upper supporting surface or lower support face by connector by described metal flange, and the metal flange be connected with lower support face has the hole communicated with the through hole in lower support face; Described upper supporting surface is identical with the material of the actual coal face hydraulic support that will simulate with lower support face.
In described simulation support, the centre position that described boring is positioned at the side in lower support face is stability in order to ensure lower support face and tightness, but choosing not special requirement to diameter.By described boring, described support can connect with external pipe, and described external pipe can be sebific duct, and for giving the air bag filling medium of support, described medium can be air also can be liquid, such as edible oil.Described through hole ensures the tightness between air bag and lower support face by flange, is used to match-drill to air bags or inflation.
The size of described air bag is little on test impact, and the mining height of Main Basis simulated test is determined.And all communicate due to described air bag, according to isotropic character of gas-liquid, it is all uniform for therefore adopting multiple air bag stressed, but in order to ensure upper supporting surface and lower support face uniform force, preferably, described air bag is equidistantly arranged evenly between upper supporting surface and lower support face.And arranging of the concrete quantity of described air bag is arranged according to the length of simulation support, preferably, for making air bag easily be uniformly distributed, use even number air bag.
Accompanying drawing 2-1 and 2-2 is the specific design simulating support in the utility model.
As shown in Fig. 2-1 and 2-2, it is the left view of simulation rack assumption diagram in a specific embodiment and this simulation support.Upper supporting surface and lower support face length 200mm in figure; Wherein, upper supporting surface thickness 5mm, lower support face thickness 8mm, lower support face is equipped with the boring of diameter 4mm; Between upper supporting surface and lower support face, be evenly distributed with 4 air bags, air bag height 30mm, has the hole of diameter 4mm in the lower end of air bag.Do not demonstrate air bag metal flange in figure to be fixed by screws between supporting surface and lower support face.
Preferably, in order to ensure air bag and lower support face through hole between tightness, the upper and lower side of air bag is all fixed with metal flange, and metal flange and upper supporting surface, fixes with connector between lower support face, and described connector can be screw.And there is mouth air bag lower end, the metal flange therefore for fixation balloon lower end needs to beat corresponding hole.
At the trial, the first support operation of support, can below support chock sheet or use liftable base to realize.Preferably, liftable base is adopted to realize just support.And just supportting in operation, in simulation support, be filled with edible oil.
Optionally, described vasculum can connect 24 control cabinets simultaneously, namely can gather 24 hydrostatic sensors simultaneously and can control 24 electromagnetic valves respectively.In such cases, the simulated experiment of different phase can be carried out simultaneously, obtains related data as soon as possible.Also conveniently different simulated tests can be carried out.
In sum; the utility model solves current laboratory and adopts rigid sensor to simulate the drawback of the phenomenon that hydraulic support can not realize coal wall caving, support is crushed to death; achieve the working condition analog simulation of simulation support overload protection and on-the-spot hydraulic support of mining; simplify in experimentation simultaneously and just support operation, Data support can be provided for the type selecting of actual hydraulic pressure support.The data obtained by the utility model equipment are carried out manually or program process can obtain by the working resistance of the actual bracket simulated, and then carry out actual bracket type selecting.
Be described in detail the utility model above, apply specific case herein and set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands system of the present utility model and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (7)
1., for a coal face hydraulic support type selecting analog machine, it is characterized in that:
Described equipment comprises simulation support, control cabinet and vasculum;
Described simulation support is connected with control cabinet by external pipe, and described control cabinet is connected with vasculum by data wire;
Described control cabinet is used for the releasing pressure automatically of control simulation support, and feeds back in vasculum with electronic signal by data wire by the pressure that described simulation support bears, and electronic signal is converted to the force value of simulation support by described vasculum.
2. equipment according to claim 1, is characterized in that:
Described simulation support, by the cylinder using air bag to simulate coal-face liquid/gas pressure support, changes by the amount changing charge and discharge medium in air bag the size that the support force of support intended by coal-face liquid/gas pressing mold; Described medium comprises gas, liquid.
3. equipment according to claim 2, is characterized in that:
Described control cabinet comprises electromagnetic valve and hydrostatic sensor, and described electromagnetic valve is used for the releasing pressure automatically of control simulation support; Pressure in electromagnetic valve is converted into electronic signal by described hydrostatic sensor.
4. equipment according to claim 2, is characterized in that:
Described simulation support comprises supporting surface, air bag and lower support face;
There is boring the one end in described lower support face, and described boring is in the centre of the end face parallel with steel plate cross section, and the other end in described lower support face is closed;
Described lower support face also has multiple through hole, and described through hole with in the plane of lower support face cross-section normal, and communicates with described boring;
Air bag is had on described through hole, the upper and lower side of described air bag has mouth, described mouth is provided with metal flange, and described air bag is connected with upper supporting surface or lower support face by connector by described metal flange, and the metal flange be connected with lower support face has the hole communicated with the through hole in lower support face;
Described upper supporting surface is identical with the material of the actual coal face hydraulic support that will simulate with lower support face.
5. equipment according to claim 4, is characterized in that: described air bag is multiple, and its quantity is to ensure that upper supporting surface uniform force is as the criterion.
6. equipment according to claim 4, is characterized in that: described air bag equidistantly arranges.
7. equipment according to claim 1, is characterized in that: described vasculum can connect 24 control cabinets simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321792.2U CN204691795U (en) | 2015-05-18 | 2015-05-18 | A kind of for coal face hydraulic support type selecting analog machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321792.2U CN204691795U (en) | 2015-05-18 | 2015-05-18 | A kind of for coal face hydraulic support type selecting analog machine |
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| Publication Number | Publication Date |
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| CN204691795U true CN204691795U (en) | 2015-10-07 |
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| CN201520321792.2U Expired - Fee Related CN204691795U (en) | 2015-05-18 | 2015-05-18 | A kind of for coal face hydraulic support type selecting analog machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353104A (en) * | 2015-11-05 | 2016-02-24 | 冯飞燕 | High-simulation coal exploitation simulation system |
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2015
- 2015-05-18 CN CN201520321792.2U patent/CN204691795U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353104A (en) * | 2015-11-05 | 2016-02-24 | 冯飞燕 | High-simulation coal exploitation simulation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20151007 Termination date: 20160518 |