CN102392663A - Forward supporting hydraulic support and forward supporting hydraulic support system - Google Patents
Forward supporting hydraulic support and forward supporting hydraulic support system Download PDFInfo
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- CN102392663A CN102392663A CN2011103910128A CN201110391012A CN102392663A CN 102392663 A CN102392663 A CN 102392663A CN 2011103910128 A CN2011103910128 A CN 2011103910128A CN 201110391012 A CN201110391012 A CN 201110391012A CN 102392663 A CN102392663 A CN 102392663A
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- hydraulic support
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- forepoling hydraulic
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Abstract
The invention provides a forward supporting hydraulic support comprising a base, a retractable first upright post, a retractable second upright post and a top beam, wherein the bottom ends of the first upright post and the second upright post are connected with the base; two ends of the top beam are respectively hinged with the top ends of the first upright post and the second upright post, and are respectively located at two sides of a down trough on a coal seam working surface; and in the case of a working state, the first upright post approaches to a mining working surface and is higher than the second upright post, and the top beam inclined is cemented to the top plate of the down trough on the coal seam working surface. When the forward supporting hydraulic support works, the base is placed on the bottom plate of the down trough on the coal seam working surface, then the heights of the first upright post and the second upright post are adjusted to realize cementation between the top beam and the top plate of the down trough on the coal seam working surface, the top beam is inclined at the moment, and the first upright post and the second upright post supports the top beam to further play a role in supporting to the top plate. The forward supporting hydraulic support is adaptive to the characteristics of the inclined top plate of an inclined coal seam, so that forward supporting to the down trough on the inclined coal seam working surface can be realized. The invention also provides a forward supporting hydraulic support system.
Description
Technical field
The present invention relates to coal digging support apparatus technical field, relate in particular to a kind of forepoling hydraulic support and forepoling hydraulic support system.
Background technology
Along with people's is to the increase of coal resources demand, and the colliery underground mining is frequent day by day, and the comprehensive mechanical coal mining work plane is more next general.
Since complicated geological condition under the coal mine, the terrane stress skewness, and environment is abominable; Mined and transport vibration influence, the back distortion is serious, and both sides are inwardly pushed, shunk; Have a strong impact on tunnel transportation and personal security, especially in the 30-50 rice scope of operation working face the place ahead, the tunnel can be out of shape in a large number; Leading pressure is big especially; So must support apparatus be set in the place ahead of work plane crossheading (the work plane crossheading is the stope drift active workings that excavate for the back production coal seam), can safety coal mining and stope staff's life security and crossheading unobstructed up and down to guarantee machines such as large-scale coal-winning machine, loader, make stope production normal.
At present; The support apparatus that is provided with in the place ahead of work plane crossheading often is a forepoling hydraulic support, and this forepoling hydraulic support uses in groups, and every group comprises two both sides support units that are oppositely arranged on the rectangular shaped roadways top board; Two support units are connected through oil cylinder; And the top board of end face and rectangular shaped roadways adapts, and has realized the effect of supporting, has improved the supporting intensity and the stability of rectangular shaped roadways work plane.Yet in actual coal mining process, the inclined seam fully-mechanized mining working is more prevalent.Inclined seam has the coal seam at inclination angle when being meant underground or strip mining transformation.For inclined seam, when the top board lithology was hard, because the inclination angle in coal seam is bigger, the work plane crossheading was generally along the top board driving, and causing the work plane crossheading is last oblique flat down trapezium structure.But the forepoling hydraulic support that rectangular shaped roadways is used can't adapt to the characteristics of the inclined roof panels of inclined seam, thereby can't this inclined roof panels of supporting, has restricted its use in the supporting of the trapezoidal work plane crossheading of inclined seam.
Therefore, how a kind of forepoling hydraulic support is provided,, realizes advance support, become the technical problem that those skilled in the art need to be resolved hurrily inclined seam work plane crossheading with the characteristics of the inclined roof panels that adapts to inclined seam.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of forepoling hydraulic support,, realize advance support inclined seam work plane crossheading with the characteristics of the inclined roof panels that adapts to inclined seam.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of forepoling hydraulic support comprises:
Base;
The bottom links to each other with said base, and first column that can stretch and second column;
The back timber that two ends are hinged with the top of said first column and second column respectively; Its two ends lay respectively at the both sides of working face of coal seam crossheading; In the time of in working order; Said first column and is higher than second column near the exploitation work plane, and said back timber tilts and fit with the top board of said working face of coal seam crossheading.
Preferably, in the above-mentioned forepoling hydraulic support, the end that said back timber keeps away mining face is provided with caving shield, and this caving shield is hinged through connecting rod and base.
Preferably, in the above-mentioned forepoling hydraulic support, said connecting rod comprises first connecting rod and second connecting rod, and said first connecting rod, second connecting rod, caving shield and base form quadric chain.
Preferably; In the above-mentioned forepoling hydraulic support; Being connected with first on the mask of said back timber on non-three limits away from said exploitation work plane respectively protects top board, second and protects top board and the 3rd and protect top board; The three all is fixedly connected with an end of the telescopic oil cylinder of its pendulum angle of scalable, and the oil cylinder other end and said back timber are hinged.
Preferably, in the above-mentioned forepoling hydraulic support, the number of said first column and second column is 2.
Preferably, in the above-mentioned forepoling hydraulic support, the axis of said first column and second column is all vertical with said back timber.
Preferably, in the above-mentioned forepoling hydraulic support, the axis of said first column and second column is all vertical with said base.
The present invention also provides a kind of forepoling hydraulic support system, comprises at least two above-mentioned any described forepoling hydraulic supports.
Preferably, in the above-mentioned forepoling hydraulic support system, be connected with the passing jack that is connected with said base between two adjacent said forepoling hydraulic supports.
In the forepoling hydraulic support provided by the invention, comprise base; The bottom links to each other with said base, and first column that can stretch and second column; The back timber that two ends are hinged with the top of said first column and second column respectively; Its two ends lay respectively at the both sides of working face of coal seam crossheading; In the time of in working order; Said first column and is higher than second column near the exploitation work plane, and said back timber tilts and fit with the top board of said working face of coal seam crossheading.This forepoling hydraulic support is when work; Said base is placed on the base plate of said working face of coal seam crossheading; Regulate the height of said first column and second column then, the top board of said back timber and said working face of coal seam crossheading is fitted, at this moment said back timber tilts; Said first column and second column are played a supporting role to said back timber, and then said top board is played support action.Forepoling hydraulic support provided by the invention has adapted to the characteristics of the inclined roof panels of inclined seam, has realized the advance support to said inclined seam work plane crossheading.
Forepoling hydraulic support provided by the invention system; Comprise at least two forepoling hydraulic supports provided by the invention; When the exploitation work plane moves forward, will be positioned at the first forward forepoling hydraulic support through the height that reduces said first column and second column earlier and fall, make its back timber break away from said top board; Then said first forepoling hydraulic support is moved forward; Move to the raise height of said first column and second column of suitable distance back, make its back timber can the said top board of supporting, second forepoling hydraulic support that at this moment rear is close to said first forepoling hydraulic support moves forward according to foregoing step; Other forepoling hydraulic support moves forward according to same step, to adapt to pushing ahead of exploitation work plane.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is forepoling hydraulic support that prior art the provides structural representation when in rectangular shaped roadways, working;
Fig. 2 is forepoling hydraulic support that prior art the provides structural representation when in trapezoidal tunnel, working;
Fig. 3 is the structural representation of the forepoling hydraulic support that provides of the embodiment of the invention;
Fig. 4 be among Fig. 3 structure 4 at the sectional view of A direction;
Fig. 5 is the structural representation of the forepoling hydraulic support system that provides of the embodiment of the invention.
The specific embodiment
The embodiment of the invention provides a kind of forepoling hydraulic support, has adapted to the characteristics of the inclined roof panels of inclined seam, has realized the advance support to inclined seam work plane crossheading.
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to accompanying drawing 1-2, Fig. 1 is forepoling hydraulic support that prior art the provides structural representation when in rectangular shaped roadways, working; Fig. 2 is forepoling hydraulic support that prior art the provides structural representation when in trapezoidal tunnel, working.
The forepoling hydraulic support that prior art provides; Be mainly used in the rectangular shaped roadways 101, comprise two support units: first support unit 102 and second support unit 103, stable in order to make its supporting; Be connected with oil cylinder 104 between the two; The face of this forepoling hydraulic support and the top board of rectangular shaped roadways adapt, and have realized the effect of supporting, have improved the supporting intensity and the stability of rectangular shaped roadways work plane.
But the forepoling hydraulic support that prior art provides can't adapt to the characteristics of inclined roof panels in the trapezoidal tunnel 201 of inclined seam, thereby can't this inclined roof panels of supporting, has restricted its use in the supporting of the trapezoidal work plane crossheading of inclined seam.
Inclined seam has the coal seam at inclination angle when being meant underground or strip mining transformation.The work plane crossheading is the stope drift active workings that excavate for the back production coal seam.
Please refer to accompanying drawing 3-4, Fig. 3 is the structural representation of the forepoling hydraulic support that provides of the embodiment of the invention; Fig. 4 be among Fig. 3 structure 4 at the sectional view of A direction.
In the forepoling hydraulic support provided by the invention, comprise base 1; The bottom links to each other with said base 1, and first column 2 that can stretch and second column 3; The back timber 4 that two ends are hinged with the top of said first column 2 and second column 3 respectively; Its two ends lay respectively at the both sides of working face of coal seam crossheading 301; In the time of in working order; Said first column 2 and is higher than second column 3 near the exploitation work plane, and said back timber 4 tilts and fit with the top board of said working face of coal seam crossheading 301.This forepoling hydraulic support is when work; Said base 1 is placed on the base plate of said working face of coal seam crossheading 301; Regulate the height of said first column 2 and second column 3 then, the said back timber 4 and the top board of said working face of coal seam crossheading 301 are fitted, at this moment said back timber 4 tilts; 3 pairs of said back timbers 4 of said first column 2 and second column are played a supporting role, and then said top board is played support action.Forepoling hydraulic support provided by the invention has adapted to the characteristics of the inclined roof panels of inclined seam, has realized the advance support to said inclined seam work plane crossheading 301.
In order to increase the supporting intensity of above-mentioned forepoling hydraulic support, improve its stability, the end that said back timber 4 keeps away mining face is provided with caving shield 5, and this caving shield 5 is hinged through connecting rod and base 1.
Concrete, said connecting rod comprises first connecting rod 6 and second connecting rod 7, and said first connecting rod 6, second connecting rod 7, caving shield 5 and base 1 form quadric chain, and this quadric chain has improved the stability and the supporting intensity of this forepoling hydraulic support.
Preferably; Being connected with first on the mask of said back timber 4 on non-three limits away from said exploitation work plane respectively protects top board 41, second and protects top board 42 and the 3rd and protect top board 43; The three all is fixedly connected with an end of the telescopic oil cylinder of its pendulum angle of scalable, and the oil cylinder other end and said back timber 4 are hinged; Stretch out or regain scalable three's pendulum angle through the pairing said oil cylinder of operation three; Empty frame part with the top board of broken rib of supporting and said working face of coal seam crossheading 301; Wherein said first protects top board 41 links to each other with first oil cylinder 81, and said second protects top board 42 links to each other with second oil cylinder 82, and the said the 3rd protects top board 43 links to each other with the 3rd oil cylinder 83; The cylinder diameter size of said oil cylinder is not done qualification, selects suitable cylinder diameter according to practical application.
Concrete, in the above-mentioned forepoling hydraulic support, the number of said first column 2 and second column 3 is 2, has increased its supporting intensity, and the number and the diameter of said first column 2 and second column 3 are not done qualification, select according to supporting intensity.
Preferably, the axis of said first column 2 and second column 3 is all vertical with said back timber 4, and this moment, the supporting role power of said first column 2 and 3 pairs of said back timbers 4 of second column was the strongest, can play best supporting effect.
Preferably; In the above-mentioned forepoling hydraulic support, the axis of said first column 2 and second column 3 is all vertical with said base 1, at this moment; When said first column 2 height identical with second column, 3 furnishings; Said back timber 4 is a horizontal direction, and this moment, this forepoling hydraulic support can be applied in the rectangular shaped roadways 101, had enlarged its range of application.
Please refer to accompanying drawing 5, Fig. 5 is the structural representation of the forepoling hydraulic support system that provides of the embodiment of the invention.
Forepoling hydraulic support provided by the invention system; Comprise the forepoling hydraulic support that at least two embodiment of the invention provide; When the exploitation work plane moves forward, will be positioned at the first forward forepoling hydraulic support through the height that reduces said first column 2 and second column 3 earlier and fall, make its back timber 4 break away from said top board; Then said first forepoling hydraulic support is moved forward; Move to the raise height of said first column 2 and second column 3 of suitable distance back, make the said top board of its back timber 4 ability supportings, second forepoling hydraulic support that at this moment rear is close to said first forepoling hydraulic support moves forward according to foregoing step; Other forepoling hydraulic support moves forward according to same step, to adapt to pushing ahead of exploitation work plane.
Preferably; In the above-mentioned forepoling hydraulic support system; Be connected with the passing jack 9 that is connected with said base 1 between two adjacent said forepoling hydraulic supports, when said exploitation work plane is pushed ahead, can utilize said passing jack 9 to pass forward; Time saving and energy saving, simple to operate.
Can select the number of said forepoling hydraulic support according to said working face of coal seam crossheading 301 in the distance of the required supporting in the place ahead of said exploitation work plane.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (9)
1. a forepoling hydraulic support is characterized in that, comprising:
Base (1);
The bottom links to each other with said base (1), and first column (2) that can stretch and second column (3);
The back timber (4) that two ends are hinged with the top of said first column (2) and second column (3) respectively; Its two ends lay respectively at the both sides of working face of coal seam crossheading (301); In the time of in working order; Said first column (2) and is higher than second column (3) near the exploitation work plane, and said back timber (4) tilts and fit with the top board of said working face of coal seam crossheading (301).
2. forepoling hydraulic support according to claim 1 is characterized in that, the end that said back timber (4) keeps away mining face is provided with caving shield (5), and this caving shield (5) is hinged through connecting rod and base (1).
3. forepoling hydraulic support according to claim 2 is characterized in that, said connecting rod comprises first connecting rod (6) and second connecting rod (7), and said first connecting rod (6), second connecting rod (7), caving shield (5) and base (1) form quadric chain.
4. forepoling hydraulic support according to claim 1; It is characterized in that; Being connected with first on the mask of said back timber (4) on non-three limits away from said exploitation work plane respectively protects top board (41), second and protects top board (42) and the 3rd and protect top board (43); The three all is fixedly connected with an end of the telescopic oil cylinder of its pendulum angle of scalable, and the oil cylinder other end and said back timber (4) are hinged.
5. forepoling hydraulic support according to claim 1 is characterized in that, the number of said first column (2) and second column (3) is 2.
6. forepoling hydraulic support according to claim 1 is characterized in that, the axis of said first column (2) and second column (3) is all vertical with said back timber (4).
7. forepoling hydraulic support according to claim 1 is characterized in that, the axis of said first column (2) and second column (3) is all vertical with said base (1).
8. a forepoling hydraulic support system is characterized in that, it comprises any described forepoling hydraulic support among at least two aforesaid right requirement 1-7.
9. forepoling hydraulic support according to claim 8 system is characterized in that, is connected with the passing jack (9) that is connected with said base (1) between two adjacent said forepoling hydraulic supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103910128A CN102392663A (en) | 2011-11-30 | 2011-11-30 | Forward supporting hydraulic support and forward supporting hydraulic support system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103910128A CN102392663A (en) | 2011-11-30 | 2011-11-30 | Forward supporting hydraulic support and forward supporting hydraulic support system |
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| Publication Number | Publication Date |
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| CN102392663A true CN102392663A (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103910128A Pending CN102392663A (en) | 2011-11-30 | 2011-11-30 | Forward supporting hydraulic support and forward supporting hydraulic support system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100287A (en) * | 2013-04-15 | 2014-10-15 | 四川省煤炭产业集团有限责任公司 | Novel self-moving advanced supporting bracket for coal mining roadway |
| CN104729561A (en) * | 2015-02-02 | 2015-06-24 | 上海交通大学 | Movable workstation used for measuring parameters of water film of hydraulic adjustable inclined plate |
| CN108468560A (en) * | 2018-05-30 | 2018-08-31 | 西安科技大学 | A kind of half-edge coal seam puppet is bowed plagioclase wall Z-shaped supporting frame quarrying apparatus and method |
| CN113847071A (en) * | 2021-10-19 | 2021-12-28 | 安徽理工大学 | Adjustable pedal applied to coal mining hydraulic support |
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| CN2700562Y (en) * | 2004-04-30 | 2005-05-18 | 兖矿集团有限公司 | Hydraulic support for forepoling of fully mechanized mining workface gate |
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| CN101832146A (en) * | 2010-04-23 | 2010-09-15 | 中煤北京煤矿机械有限责任公司 | Transversal reverse-four-link-bar advance bracket of large-obliquity working surface |
| CN101852084A (en) * | 2010-04-23 | 2010-10-06 | 中煤北京煤矿机械有限责任公司 | Forepoling with large inclination working surface and four transverse connecting rods |
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| GB1447088A (en) * | 1972-11-25 | 1976-08-25 | Lubba A | Method for fixing linings in underground mine workings |
| CN2700562Y (en) * | 2004-04-30 | 2005-05-18 | 兖矿集团有限公司 | Hydraulic support for forepoling of fully mechanized mining workface gate |
| CN201025055Y (en) * | 2007-04-13 | 2008-02-20 | 中煤北京煤矿机械有限责任公司 | Rotary supporting device for top beam |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100287A (en) * | 2013-04-15 | 2014-10-15 | 四川省煤炭产业集团有限责任公司 | Novel self-moving advanced supporting bracket for coal mining roadway |
| CN104729561A (en) * | 2015-02-02 | 2015-06-24 | 上海交通大学 | Movable workstation used for measuring parameters of water film of hydraulic adjustable inclined plate |
| CN104729561B (en) * | 2015-02-02 | 2017-08-01 | 上海交通大学 | Moving station for measuring the adjustable hang plate moisture film parameter of hydraulic pressure |
| CN108468560A (en) * | 2018-05-30 | 2018-08-31 | 西安科技大学 | A kind of half-edge coal seam puppet is bowed plagioclase wall Z-shaped supporting frame quarrying apparatus and method |
| CN108468560B (en) * | 2018-05-30 | 2024-03-26 | 西安科技大学 | Device and method for mining pseudo-depression inclined long-wall Z-shaped bracket of steep coal seam |
| CN113847071A (en) * | 2021-10-19 | 2021-12-28 | 安徽理工大学 | Adjustable pedal applied to coal mining hydraulic support |
| CN113847071B (en) * | 2021-10-19 | 2024-04-16 | 安徽理工大学 | Adjustable pedal applied to coal mining hydraulic support |
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Inventor after: Li Weimin Inventor after: Wu Chengfeng Inventor after: Jiang Yuan Inventor after: Chen Fubao Inventor after: Wang Ye Inventor before: Wu Chengfeng Inventor before: Jiang Yuan Inventor before: Chen Fubao Inventor before: Wang Ye |
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Application publication date: 20120328 |