CN203463119U - Cage-type rock-burst-preventing assembly used in mine - Google Patents
Cage-type rock-burst-preventing assembly used in mine Download PDFInfo
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- CN203463119U CN203463119U CN201320546332.0U CN201320546332U CN203463119U CN 203463119 U CN203463119 U CN 203463119U CN 201320546332 U CN201320546332 U CN 201320546332U CN 203463119 U CN203463119 U CN 203463119U
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- cage
- burst
- type rock
- protecting against
- rock
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Abstract
The utility model belongs to supporting equipment for coal mine safety, and in particular relates to a cage-type rock-burst-preventing assembly used a mine. The cage-type rock-burst-preventing assembly comprises a top plate (1), hydraulic supports (9), a support bottom beam (8) and a support top beam (2), wherein a plurality of cage-type rock-burst-preventing components with regular polygon-shaped upper and lower end surfaces are equidistantly fixed above the support top beam (2) on the hydraulic supports (9) through component fixedly-connecting bases (4) and fixing bolts (6); a plurality of steel tubes are welded into trilateral component modules (3), and the component modules (3) are superposed and welded to form the whole cage-type rock-burst-preventing assembly; convex-concave arrises are formed on the peripheries of the side surfaces of each component module (3); the top end of the cage-type rock-burst-preventing assembly is connected with a coal-rock mass (5) above the top plate through the top plate (1); the cage-type rock-burst-preventing assembly can also be arranged below the hydraulic supports (9) through an arc-shaped rigid padding plate (10) inside a steel cylinder (11). Under the action of an impact load, a counterforce can be kept constant or changes slightly, and large elastic-plastic compression deformation can be avoided; the cage-type rock-burst-preventing component can well protect a tunnel and a supporting system and can be replaced conveniently.
Description
Technical field
The utility model belongs to safety of coal mines support apparatus, particularly presses member a kind of mining cage protecting against shock.
Background technology
Rich coal resources in China, current explored coal reserves accounts for 11.1% of whole world coal total resources, and coal reserves is in the majority in deep, the coal resources of buried depth below 1000m are about 2.5 trillion tons, account for 53% of coal resources total amount, enter now 1000m also relatively less to go down into a mine, along with developing rapidly of Chinese national economy, the demand of coal constantly increases, the coal mining degree of depth and difficulty increase gradually, the generation of bump is more and more frequent, produces greatly to people's life, property and production safety and threatens.
Impact is pressed without vacant lot has instantaneity, sudden and destructive, and the large energy of simultaneous discharges, and discharges impact energy greatly to 10
3mJ, discharges impact energy Main Function in two parts, and a part acts on coal and rock, causes the fragmentation of coal and rock; Another part is consumed and is acted on roadway surrounding rock and supporting and protection structure by transmission, and its enormous impact can act on coal and rock and tunnel, causes coal and rock fragmentation and tunnel and Support structure damage thereof.Conventional bracket support is all rigid protection now, and variable spaces is less, once burst bump will cause support material or support apparatus short time set to destroy, thereby causes the whole unstability accident of support system.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, provides a kind of simple in structure, can be combined with existing support form, and member is pressed on safe and reliable mining cage protecting against shock ground.
The technical scheme that the utility model technical solution problem adopts is: mining cage protecting against shock ground presses member to comprise top board, hydraulic support, foot-piece, set cap, be characterized in the even distance in set cap above hydraulic support top by member fixed connecting base and set bolt fixing several on, lower surface be regular polygon cage protecting against shock press member, it is the triangular shape construction part module that several member steel pipe weldings are connected into the outer shroud convex-concave rib of side that member is pressed on cage protecting against shock ground, construction part module stack is welded into whole cage protecting against shock and presses member, its top is connected with top board top coal and rock with top board, cage protecting against shock ground press member can also adopt in steel cylinder by arc rigidity backing plate be located at hydraulic support below.
The beneficial effects of the utility model are: the utility model is the feature that energy discharges fast with impulse form while occurring for coal mine rock burst, design a kind of cage bump member that can combine with existing hydraulic support or other existing rigid protection form and use, member can reach specified enabling capabilities under action of static load, under impact loading, can realization effect counter-force keep constant or change less of significantly elastoplasticity compressive strain; Absorption portion impact energy in conquassation deformation process, takes up space after distortion little, and compressed space provides energy Free up Memory to coal petrography, has indirectly absorbed again part impact energy.This will reduce to act on the impact force on support greatly; play preferably the effect of protection tunnel and support system; cage protecting against shock ground presses member installation site different; can make existing support become back timber energy-absorption bracket, or bottom girder energy-absorption bracket, or two help energy-absorption bracket; or energy-absorbing pillar; or combined type energy-absorbing, after cage protecting against shock ground presses member to be washed out, also conveniently replaced.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 be mining cage protecting against shock press member in colliery, to use state diagram.
Fig. 2 presses member to be arranged on state diagram below hydraulic support cage protecting against shock in Fig. 1.
In figure, 1-top board; 2-set cap; 3-construction part module; 3-1-member steel pipe; 4-member fixed connecting base; 5-top board top coal and rock; 6-set bolt; 7-bottom girder below coal and rock; 8-foot-piece; 9-hydraulic support; 10-arc rigidity backing plate; 11-steel cylinder.
The specific embodiment
Embodiment, with reference to accompanying drawing 1,2, mining cage protecting against shock ground presses the upper and lower end face of member can make positive four limits, regular pentagon or orthohexagonal single construction part module 3, the side of construction part module 3 is protruding, the recessed interphase structure of triangle, each construction part module 3 adopts steel pipe 3-1 or steel pole to be welded, the number of construction part module 3 and adopt steel pipe 3-1 or the length of steel pole, diameter will be determined according to the ability of carrying, it is to superpose and be welded and fixed together with a plurality of construction part modules 3 that member is pressed on whole cage protecting against shock ground.The lower end of the existing hydraulic support 9 in mine is fixed on above foot-piece 8, below foot-piece 8, connect bottom girder below coal and rock 7, the top fixed support back timber 2 of hydraulic support 9, on set cap 2, even distance is fixed several cage protecting against shocks that are comprised of construction part module 3 by member fixed connecting base 4 and set bolt 6 and is pressed member, cage protecting against shock press member above fixing top board 1, the top of top board 1 connects top board top coal and rock 5.Cage protecting against shock ground is pressed member to adopt and is contained in steel cylinder 11, and member top connects arc rigidity backing plate 10, and the top of arc rigidity backing plate 10 connects the mounting means of hydraulic support 9, realizes protecting against shock and presses.
Mining cage protecting against shock ground presses the operating principle of member to be: member itself is by energy absorption portion impact energy in Collapse of Concrete; member provides certain energy Free up Memory to top board top coal and rock 5 after by conquassation; namely member has absorbed again and has partly impacted without empty energy; this has just greatly reduced the impact force acting on hydraulic support 9, plays the effect of protective cradle system.
Claims (1)
1. member is pressed on a mining cage protecting against shock ground, comprise top board (1), hydraulic support (9), foot-piece (8), set cap (2), it is characterized in that the even distance in set cap (2) above of hydraulic support (9) top by member fixed connecting base (4) and set bolt (6) fix several on, lower surface be regular polygon cage protecting against shock press member, it is the triangular shape construction part module (3) that several member steel pipe weldings are connected into the outer shroud convex-concave rib of side that member is pressed on cage protecting against shock ground, construction part module (3) stack is welded into whole cage protecting against shock and presses member, its top board for top (1) is connected with top board top coal and rock (5), cage protecting against shock ground presses member can also adopt the below that is located at hydraulic support (9) in steel cylinder (11) by arc rigidity backing plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546332.0U CN203463119U (en) | 2013-09-04 | 2013-09-04 | Cage-type rock-burst-preventing assembly used in mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546332.0U CN203463119U (en) | 2013-09-04 | 2013-09-04 | Cage-type rock-burst-preventing assembly used in mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463119U true CN203463119U (en) | 2014-03-05 |
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ID=50175491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546332.0U Expired - Fee Related CN203463119U (en) | 2013-09-04 | 2013-09-04 | Cage-type rock-burst-preventing assembly used in mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982212A (en) * | 2014-05-19 | 2014-08-13 | 辽宁工程技术大学 | Mine hexagonal tubular resistive energy-absorption anti-impact device |
-
2013
- 2013-09-04 CN CN201320546332.0U patent/CN203463119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982212A (en) * | 2014-05-19 | 2014-08-13 | 辽宁工程技术大学 | Mine hexagonal tubular resistive energy-absorption anti-impact device |
| CN103982212B (en) * | 2014-05-19 | 2016-09-28 | 辽宁工程技术大学 | The anti-energy-absorbing checking motion that allows of mining hexagon tubular type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140305 Termination date: 20160904 |