CN103452570A - Mining cage type anti-shocking ground pressure component - Google Patents
Mining cage type anti-shocking ground pressure component Download PDFInfo
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- CN103452570A CN103452570A CN 201310396534 CN201310396534A CN103452570A CN 103452570 A CN103452570 A CN 103452570A CN 201310396534 CN201310396534 CN 201310396534 CN 201310396534 A CN201310396534 A CN 201310396534A CN 103452570 A CN103452570 A CN 103452570A
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Abstract
The invention belongs to coal mine safety supporting equipment and particularly relates to a mining cage type anti-shocking ground pressure component. The mining cage type anti-shocking ground pressure component comprises a top plate (1), a hydraulic support (9), a support bottom beam (8) and a support top beam (2), wherein a plurality of cage type e anti-shocking ground pressure components of which the upper end faces and the lower end faces are in the shape of a regular polygon respectively are fixedly arranged at an equal distance on the support top beam (2) on the hydraulic support (9) through component fixing and connecting seats (4) and fixing bolts (6); the cage type anti-shocking ground pressure components are three-side shape component modules (3) which are formed by welding a plurality of component steel tubes, and the side external peripheries of the component modules are provided with convex-concave edges; the component modules (3) are welded to form an integral cage type ground pressure component in an overlapping way; the top end of integral cage type ground pressure component is connected with a coal-rock mass (5) above the top plate through the top plate; the cage type anti-shocking ground pressure components can also be arranged below the hydraulic support (9) through an arc-shaped rigid backing plate (10) in a steel-made cylinder (11). The mining cage type anti-shocking ground pressure component can realize serious elastic-plastic compressive deformation with constant or slightly-changed action counterforce under the action of an impulse load; a role in protecting a tunnel and a supporting system can be played better; the replacement can be facilitated.
Description
Technical field
The invention belongs to the safety of coal mines support apparatus, particularly member is pressed on a kind of mining cage protecting against shock ground.
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, discharge the impact energy Main Function in two parts, and a part acts on coal and rock, causes the fragmentation of coal and rock; Another part consumes and acts 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.Bracket support commonly used is all rigid protection now, and variable spaces is less, once the 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 object of the invention is to overcome above-mentioned technical deficiency, provide a kind of simple in structure, can be combined with existing support form, member is pressed on safe and reliable mining cage protecting against shock ground.
The technical scheme that technical solution problem of the present invention 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 the member fixed connecting base and set bolt fixing several on, member is pressed on the cage protecting against shock ground that lower surface is regular polygon, 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, the construction part module stack is welded into whole cage protecting against shock ground 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 the steel cylinder by arc rigidity backing plate be located at hydraulic support below.
The invention has the beneficial effects as follows: the characteristics that while the present invention be directed to the coal mine rock burst generation, energy discharges fast with impulse form, 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 the conquassation deformation process, take up space after distortion little, and compressed space provides the energy Free up Memory to coal petrography, has indirectly absorbed again the 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; member installation site difference is pressed on cage protecting against shock ground; can make to have now support becomes the back timber energy-absorption bracket, or the bottom girder energy-absorption bracket, or two help energy-absorption bracket; or energy-absorbing pillar; or the combined type energy-absorbing, after cage protecting against shock ground presses member to be washed out, also conveniently replaced.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, with embodiment, illustrate.
Fig. 1 is that mining cage protecting against shock ground presses member to use state diagram in colliery.
Fig. 2 is that in Fig. 1, cage protecting against shock ground presses member to be arranged on state diagram below hydraulic support.
In figure, the 1-top board; The 2-set cap; The 3-construction part module; 3-1-member steel pipe; 4-member fixed connecting base; 5-top board top coal and rock; The 6-set bolt; 7-bottom girder below coal and rock; The 8-foot-piece; The 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, the following connection bottom girder below coal and rock 7 of foot-piece 8, the top fixed support back timber 2 of hydraulic support 9, on set cap 2, even distance is pressed member by member fixed connecting base 4 and the fixing several cage protecting against shock ground be comprised of construction part module 3 of set bolt 6, cage protecting against shock ground 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 the 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 ground pressure.
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 acted 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) top above hydraulic support (9) by member fixed connecting base (4) and set bolt (6) fix several on, member is pressed on the cage protecting against shock ground that lower surface is regular polygon, 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 ground 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 |
|---|---|---|---|
| CN 201310396534 CN103452570A (en) | 2013-09-04 | 2013-09-04 | Mining cage type anti-shocking ground pressure component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310396534 CN103452570A (en) | 2013-09-04 | 2013-09-04 | Mining cage type anti-shocking ground pressure component |
Publications (1)
| Publication Number | Publication Date |
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| CN103452570A true CN103452570A (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201310396534 Pending CN103452570A (en) | 2013-09-04 | 2013-09-04 | Mining cage type anti-shocking ground pressure component |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806265A (en) * | 2015-03-31 | 2015-07-29 | 辽宁工程技术大学 | Impact ground pressure preventing method of full seam gateway |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107637531A (en) * | 2016-07-21 | 2018-01-30 | 福特全球技术公司 | Pet cage including energy absorbing element |
| CN110331995A (en) * | 2019-07-16 | 2019-10-15 | 北京诚田恒业煤矿设备有限公司 | A kind of corrugated constant-resistance energy absorption device |
| CN111058882A (en) * | 2019-12-12 | 2020-04-24 | 天地科技股份有限公司 | Top beam of anti-impact advanced hydraulic support |
-
2013
- 2013-09-04 CN CN 201310396534 patent/CN103452570A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806265A (en) * | 2015-03-31 | 2015-07-29 | 辽宁工程技术大学 | Impact ground pressure preventing method of full seam gateway |
| CN107637531A (en) * | 2016-07-21 | 2018-01-30 | 福特全球技术公司 | Pet cage including energy absorbing element |
| CN107100652A (en) * | 2017-05-19 | 2017-08-29 | 中国矿业大学(北京) | A kind of compliant impact resistant method for protecting support and device |
| CN107100652B (en) * | 2017-05-19 | 2023-11-17 | 中国矿业大学(北京) | Flexible impact-resistant supporting method and device |
| CN110331995A (en) * | 2019-07-16 | 2019-10-15 | 北京诚田恒业煤矿设备有限公司 | A kind of corrugated constant-resistance energy absorption device |
| CN110331995B (en) * | 2019-07-16 | 2024-03-29 | 北京诚田恒业煤矿设备有限公司 | Corrugated constant-resistance energy absorbing device |
| CN111058882A (en) * | 2019-12-12 | 2020-04-24 | 天地科技股份有限公司 | Top beam of anti-impact advanced hydraulic support |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |
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| RJ01 | Rejection of invention patent application after publication |