CN203838962U - Mine working face roof weighting demonstration device - Google Patents
Mine working face roof weighting demonstration device Download PDFInfo
- Publication number
- CN203838962U CN203838962U CN201420261735.5U CN201420261735U CN203838962U CN 203838962 U CN203838962 U CN 203838962U CN 201420261735 U CN201420261735 U CN 201420261735U CN 203838962 U CN203838962 U CN 203838962U
- Authority
- CN
- China
- Prior art keywords
- roof
- hydraulic
- pressure
- working face
- demonstrating
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a mine working face roof weighting demonstration device and belongs to the technical field of mine roadway teaching, so as to solve the problems that roof subsidence and pressure on a supporting object can not be demonstrated by the prior experimental table for demonstrating working face roof pressure and the effects of demonstrating the roof pressure effect are not ideal. The device comprises an outer frame, single hydraulic props, pressure sensors, top beams, a roof, hydraulic jacks and a displacement sensor, wherein the number of the single hydraulic props is four, each single hydraulic prop is provided with one pressure sensor, lower ends of four single hydraulic props are fixedly connected with the bottom surface of the outer frame and reinforcing rings are arranged at the connection places; upper ends of each two single hydraulic props are connected with one top beam; the roof is supported on the two top beams; and more than two hydraulic jacks and one displacement sensor are arranged between the rood and the top surface of the outer frame. The device of the utility model is sued for demonstrating roof weighting of the mine roadway.
Description
Technical field:
The utility model belongs to mine working face instructional technology field, is specifically related to a kind of mine working face roof weighting apparatus for demonstrating.
Background technology:
In seam mining process, affected by workplace movement, face roof pressure manifests complexity, and strong roof pressure can cause top board disaster accident, and mining engineering and getter author are caused to impact and harm in various degree.High, the shared accident ratio of top board disaster accident occurrence frequency is high at present, number of casualties ratio is large, becomes one of principal element threatening mine safety production.Therefore, improve mine working face roof pressure is manifested to understanding, reduce roof pressure and manifest adverse effect to mining activity, guarantee safe production, significant to mine safety High-efficient Production.For the experiment table of face roof pressure demonstration, can not demonstrate the amount of crushing and supporting thing pressure at present, undesirable to roof pressure effect demonstration effect.
Utility model content:
The purpose of this utility model is in order to solve the experiment table for the demonstration of face roof pressure at present, can not demonstrate the amount of crushing and supporting thing pressure, to the undesirable problem of roof pressure effect demonstration effect, a kind of mine working face roof weighting apparatus for demonstrating is provided, and its technical scheme is as follows:
A kind of mine working face roof weighting apparatus for demonstrating, it comprises housing, hydraulic prop, pressure transducer, back timber, top board, hydraulic jack and displacement transducer; Described hydraulic prop, pressure transducer, back timber, top board, hydraulic jack and displacement transducer are all arranged on housing inside, hydraulic prop has four, a pressure transducer is set on every hydraulic prop, the lower end of four hydraulic props is fixedly connected with the bottom surface of housing, and be provided with reinforcing ring in junction, the upper end of every two hydraulic props is connected with a back timber, top plate supporting, on two back timbers, is provided with more than two hydraulic jack and a displacement transducer between top board and the end face of housing.
The beneficial effects of the utility model are: simple in structure, easy to operate, visual in image simulation in seam mining face roof carry out pressure situation, can monitor in real time the amount of crushing and hydraulic prop pressure by displacement transducer and pressure transducer.
Brief description of the drawings:
Fig. 1 is the new perspective view of this practicality;
Fig. 2 is the front elevation of Fig. 1;
Fig. 3 is the side sectional view of Fig. 1.
Embodiment:
With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of mine laneway top board 5 is pressed apparatus for demonstrating, and it comprises housing 1, hydraulic prop 2, pressure transducer 3, back timber 4, top board 5, hydraulic jack 6 and displacement transducer 7, described hydraulic prop 2, pressure transducer 3, back timber 4, top board 5, hydraulic jack 6 and displacement transducer 7 are all arranged on housing 1 inside, hydraulic prop 2 has four, a pressure transducer 3 is set on every hydraulic prop 2, the lower end of four hydraulic props 2 is fixedly connected with the bottom surface of housing 1, and be provided with reinforcing ring 2-1 in junction, the upper end of every two hydraulic props 2 is connected with a back timber 4, top board 5 is supported on two back timbers 4, between top board 5 and the end face of housing 1, be provided with more than two hydraulic jack 6 and a displacement transducer 7.
Preferably, described hydraulic jack 6 adopts electric-controlled hydraulic lifting jack.
The using method of utility model: by hydraulic jack 6, top board 5 is pressurizeed, monitor displacement transducer 7 and pressure transducer 3 simultaneously.
Claims (2)
1. a mine working face roof weighting apparatus for demonstrating, is characterized in that it comprises housing (1), hydraulic prop (2), pressure transducer (3), back timber (4), top board (5), hydraulic jack (6) and displacement transducer (7), described hydraulic prop (2), pressure transducer (3), back timber (4), top board (5), hydraulic jack (6) and displacement transducer (7) are all arranged on housing (1) inside, hydraulic prop (2) has four, a pressure transducer (3) is set on every hydraulic prop (2), the lower end of four hydraulic props (2) is fixedly connected with the bottom surface of housing (1), and be provided with reinforcing ring (2-1) in junction, the upper end of every two hydraulic props (2) is connected with a back timber (4), top board (5) is supported on two back timbers (4), between top board (5) and the end face of housing (1), be provided with more than two hydraulic jack (6) and a displacement transducer (7).
2. a kind of mine working face roof weighting apparatus for demonstrating as claimed in claim 1, is characterized in that described hydraulic jack (6) adopts electric-controlled hydraulic lifting jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261735.5U CN203838962U (en) | 2014-05-20 | 2014-05-20 | Mine working face roof weighting demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261735.5U CN203838962U (en) | 2014-05-20 | 2014-05-20 | Mine working face roof weighting demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838962U true CN203838962U (en) | 2014-09-17 |
Family
ID=51516776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261735.5U Expired - Fee Related CN203838962U (en) | 2014-05-20 | 2014-05-20 | Mine working face roof weighting demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596279A (en) * | 2016-12-07 | 2017-04-26 | 中国矿业大学(北京) | Simulation test device of mine roof pressure |
-
2014
- 2014-05-20 CN CN201420261735.5U patent/CN203838962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106596279A (en) * | 2016-12-07 | 2017-04-26 | 中国矿业大学(北京) | Simulation test device of mine roof pressure |
| CN106596279B (en) * | 2016-12-07 | 2020-02-07 | 中国矿业大学(北京) | Mine roof pressure simulation test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205177261U (en) | Three -dimensional experimental model of mining coal face simulation test | |
| CN103512805B (en) | A kind of pressue device of simulating the anchor rod drawing experiment of anchoring body surrouding rock stress | |
| CN102704977A (en) | Universal-type statically indeterminate hydraulic support | |
| CN104458418A (en) | Working face coal wall stability control simulation experiment table and application method | |
| CN103439105A (en) | Axial follow-up space loading device | |
| CN105651965A (en) | Loadable device for similarity simulation test and use method thereof | |
| CN203838962U (en) | Mine working face roof weighting demonstration device | |
| CN103032091A (en) | Self-moving hydraulic support | |
| CN203383843U (en) | Thin coal seam filling and coal mining bracket | |
| CN102207001A (en) | Testing device for pillar socket structure of hydraulic support | |
| CN204789189U (en) | Tunnel rock burst analogue means | |
| CN203145981U (en) | Integral top beam statically indeterminate hydraulic support | |
| CN201637632U (en) | Needling structure test device of hydraulic bracket | |
| CN203881663U (en) | Experimental device for lateral compaction analog simulation | |
| CN202217071U (en) | Lateral plate structure used for simulation test of water inrush test from mined coal seam floor | |
| CN103075613B (en) | Roadway work surface hydraulic roof connecting device | |
| CN203145036U (en) | Anti-great mining deformation steel column base | |
| CN203321544U (en) | Hydraulic support | |
| CN204241316U (en) | A kind of working face wall stability control simulation experiment table | |
| CN204882265U (en) | Heavily stressed boxshear apparatus | |
| CN203010127U (en) | Hydraulic roof-contact device for laneway working face | |
| CN203412599U (en) | Stretchable constant-resistance bracket for similarity simulation test | |
| CN204371381U (en) | A kind of hydraulic draw column device | |
| CN203925532U (en) | A kind of tunnel i-beam frame | |
| CN204882116U (en) | Loading device of simulation test test stand |
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 |
Granted publication date: 20140917 Termination date: 20150520 |
|
| EXPY | Termination of patent right or utility model |