CN102926781A - Timbering device of inverse connecting rod mechanism for gob-side entry retaining - Google Patents
Timbering device of inverse connecting rod mechanism for gob-side entry retaining Download PDFInfo
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- CN102926781A CN102926781A CN2012104031654A CN201210403165A CN102926781A CN 102926781 A CN102926781 A CN 102926781A CN 2012104031654 A CN2012104031654 A CN 2012104031654A CN 201210403165 A CN201210403165 A CN 201210403165A CN 102926781 A CN102926781 A CN 102926781A
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- hydraulic support
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- entry retaining
- side entry
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Abstract
The invention discloses a timbering device of an inverse four connecting rod mechanism for gob-side entry retaining. The timbering device comprises a hydraulic support A, a hydraulic support B, a hydraulic support C and a sealing-type protection device, wherein the hydraulic support A, the hydraulic support B and the hydraulic support C are provided with the same main body structure, and the main body structure comprises an inverse four connecting rod stabilizing mechanism, a protecting plate, a front expansion beam, a front beam, a top beam, a rear swinging beam, a rear expansion beam and a related oil cylinder; and the sealing-type protection device comprises a secondary gangue prevention side plate of the hydraulic support A, a base telescopic secondary gangue prevention side plate of the hydraulic support A, a swinging beam rear gangue prevention device between the hydraulic support A and the hydraulic support B and a base rear part telescopic secondary gangue prevention device between the hydraulic support A and the hydraulic support B. According to the timbering device disclosed by the invention, the lag amount of gob-side entry retaining work can be reduced, a sealing-type working space is provided, the safety performance of the gob-side entry retaining work is ensured, and the gob-side entry retaining working efficiency is increased.
Description
Technical field
The present invention relates to a kind of gob side entry retaining with anti-linkage support apparatus, belong to the coal mining mechanical manufacturing field.
Background technology
Edge air gallery technology can be realized non chain pillar entryprotection preferably, it is a major reform of Coal Mining Technology, technique is not only the reasonable development coal resources, improve the coal resources recovery ratio, prolong mine service-life, reduce the tunnelling amount, alleviate digging and take over contradiction, cancellation island working face and shortening moving time, prevent from getting angry, be conducive to mine safety production and a great lane technology of protecting improving the mine technology economic effect, and be that the coal-mining method reform is carried out in the mine, realize protrusive and reciprocating mining, realize Y type draft type, the effective way of a control face gas exceeding limit difficult problem, its technical advantage and remarkable in economical benefits.The developed country such as Britain, Germany adopts gob side entry retaining (also claiming to ventilate without coal pillar mining, roadside packing or Y type) production technique since the sixties in last century, and China is since the introducing and employment seventies in last century.Up to the present, a large amount of work is being done aspect gob side entry retaining theory and the technical research by China, but because being subjected to the impact of geological conditions, support apparatus and the aspects such as filler and filling process, so that some mines do not achieve the desired result when using edge air gallery technology, apply more widely in China thereby limited edge air gallery technology.
There are following one or more problems at least in the backfill for underground gob-side entry retaining of coal mine support apparatus at present:
(1) adopt the individual prop supporting, labour intensity is large, efficient is low, poor stability;
(2) transition bracket of the conventional comprehensive mining hydraulic bracket structure of employing is arranged in the work plane chain-drive section, for staying gob side entry retaining trouble free service space, causes this support hysteresis force piece distance large, and the bracket support area is large, and weight support frame is large, moving difficulty; Large with the middle bracket dislocation simultaneously, cause the stone-blocking structure difficult design, be difficult to guarantee the safety of working space;
(3) adopt horizontal face end support, the support moving difficulty, the support abandoned is in the goaf, causes the gob side entry retaining work can't operation and the waste of resource.
Summary of the invention
The object of the invention is the existing gob side entry retaining process characteristic for Chuan Meiji, provide that a kind of supporting efficient is high, safety is good, compact conformation, the gob side entry retaining support apparatus that is easy to pass, the inventive method can reduce the hysteresis in gob-side entry retaining work space, closed working space is provided, guarantee the safety of gob-side entry retaining work, guarantee the high efficiency of gob-side entry retaining support equipment moving.
For achieving the above object, the present invention adopts following technical scheme:
A kind of gob side entry retaining comprises the identical hydraulic support A of agent structure, hydraulic support B, hydraulic support C and Fencing protection device with reverse-four-link-bar mechanism support apparatus.Described agent structure comprises stabilizing mechanism, face guard, front stretching beam, front-axle beam, back timber, rear balance arm and rear extensible canopy and the relevant oil cylinder of reverse-four-link-bar mechanism; Described reverse-four-link-bar stabilizing mechanism comprises base, front rod, back link and cant beam, and wherein front rod, back link and cant beam are arranged between the forward and backward column; Described back timber is anterior hinged with front-axle beam, and rear portion and rear balance arm are hinged, and middle part and cant beam are hinged, link to each other with base by four root posts; Described front stretching beam and front-axle beam are stretched the formula connected mode in being, the extensible canopy front end is hinged with face guard; Described rear extensible canopy and rear balance arm are stretched the formula connected mode in being.Described Fencing protection device comprises the anti-cash device of balance arm rear defence cash device, hydraulic support rear portion telescopic secondary of base telescopic secondary anti-spoil side plate, hydraulic support A and the hydraulic support B of the anti-spoil side plate of the secondary of hydraulic support A, hydraulic support A.
It is characterized in that: the anterior hinged front-axle beam of described back timber, the hinged rear balance arm in rear portion; Before and after the stabilizing mechanism of described reverse-four-link-bar mechanism, its cant beam are arranged between the column; Closed gob-side entry retaining work space is left at described three support rear portions.
A kind of preferred technical scheme is characterized in that rear balance arm jack one end is fixed on the base, and an end is fixed on the rear balance arm, in the working depth scope after balance arm can flush with back timber, again can the bottom 45 °.
A kind of preferred technical scheme, a dismountable working platform is arranged at bottom, described closed gob-side entry retaining work space, and this platform is connected with base with bearing pin by two power bars with the base rear portion.
A kind of preferred technical scheme is characterized in that the secondary of described support A is prevented the spoil side plate, links to each other with rear balance arm side plate by linkage, forms enclosure space with the anti-spoil side plate of the base telescopic secondary of hydraulic support A.
A kind of preferred technical scheme, the balance arm rear defence cash device that it is characterized in that described hydraulic support A and hydraulic support B, can the leveling supporting roof, increase the trouble free service space, can regain fully again, become 180 ° with rear extensible canopy, when rear waste rock board is recovered to 90 °, can form enclosure space with the anti-cash device of base rear portion telescopic secondary.
A kind of preferred technical scheme is characterized in that the anti-spoil side plate of base telescopic secondary and the base rear portion telescopic secondary of described hydraulic support A prevented the cash device, by jack control, can regulate gear cash height.
A kind of preferred technical scheme is characterized in that the anti-spoil side plate of base telescopic secondary of hydraulic support A, the anti-cash device of hydraulic support foundation rear portion telescopic secondary all are to be connected with base Background Job platform with bearing pin by two power bars.
The present invention is mainly used in the fully-mechanized mining working that adopts the gob side entry retaining production practice.
Advantage of the present invention is:
Support apparatus of the present invention can satisfy the demand of gob-side entry retaining work safety support.Also have the following advantages:
1. adopt gob side entry retaining reverse-four-link-bar mechanism support apparatus, with the bracket stable arrangement of mechanism in the centre, supporting with the two column protected type hydraulic support of positive four connecting rod stabilizing mechanisms, namely guarantee the space on the front sidewalk of frame, guaranteed again the required working space of gob side entry retaining behind the frame, shortened simultaneously the length of whole support, reduced the distance of face roof under control of gob-side entry retaining support device, improve the safety of operating space, alleviated weight support frame, strengthened the operating characteristics of support;
2. adopt gob side entry retaining reverse-four-link-bar mechanism support apparatus, supporting structure is compact, Background Job space of planes and force piece side and rear design have lever mechanism, provide the working space of sealing to gob-side entry retaining work, have improved the safety of gob side entry retaining work;
3. gob side entry retaining has strengthened the mechanization degree of gob-side entry retaining support equipment with the same do mechanization operation that adopts with middle bracket of reverse-four-link-bar mechanism support apparatus, has improved the efficient of this production practice;
4. gob side entry retaining with the parts in forming closed gob-side entry retaining work space, reverse-four-link-bar mechanism support apparatus rear portion all by bearing pin and rack body is hinged forms, when not adopting gob side entry retaining technique, parts removable laying down all of promising gob-side entry retaining work design;
5. balance arm can flush with back timber after in the support work altitude range, again can the bottom 45 °, when not adopting gob side entry retaining technique, the rear balance arm bottom to 45 °, can screen the goaf spoil not enter work plane, can be used with force piece, the face of finishing the work is normally mined.
The present invention will be further described below in conjunction with accompanying drawing and preferred forms, so that the public has whole to summary of the invention and understand fully, and is not restriction to protection domain of the present invention.Aforementioned part fully discloses the protection domain that the present invention can implement, and therefore allly any well known in the artly is equal to replacement according to what the disclosure of invention was carried out, all belongs to infringement of the present invention.
Description of drawings
Fig. 1 is hydraulic support A floor map of the present invention.
Fig. 2 is hydraulic support B floor map of the present invention.
Fig. 3 is hydraulic support C floor map of the present invention.
Fig. 4 is gob side entry retaining of the present invention support apparatus schematic top plan view.
The specific embodiment
A kind of gob side entry retaining comprises the identical hydraulic support A of agent structure, hydraulic support B, hydraulic support C and Fencing protection device with reverse-four-link-bar mechanism support apparatus.
Gob side entry retaining of the present invention with reverse-four-link-bar mechanism support apparatus hydraulic support agent structure shown in Fig. 1 ~ 3: mainly contain face guard 1, front stretching beam 2, front-axle beam 3, back timber 4, rear balance arm 5, rear extensible canopy 6, base 7, front rod 8, back link 9, cant beam 10, column 11 and relevant cylinder jack.Hydraulic support is composed as follows: by back timber 4 and the base 7 at two rows, hinged its two ends that are symmetrically arranged before and after four root posts 11 minutes; Back timber 4 front portions are hinged by bearing pin and front-axle beam 3, and the rear end is hinged by bearing pin and rear balance arm 5, and middle part and cant beam are hinged; Stretch formula extensible canopy 2 in front-axle beam 3 interior the settings; The hinged face guard 1 of extensible canopy 2 front ends; Stretch formula extensible canopy 6 in rear balance arm 5 interior the settings.
Fencing protection device of the present invention is shown in Fig. 1 ~ 4: mainly contain the anti-spoil side plate 24 of back timber secondary of hydraulic support A, the anti-spoil side plate 22 of rear balance arm secondary of pressing support A, the anti-spoil side plate 15 of hydraulic support A base, the balance arm rear defence cash device 20 of hydraulic support A base telescopic secondary anti-spoil side plate 18, hydraulic support A and hydraulic support B, the anti-cash mount board 16 in base rear portion, the anti-cash device 17 of base rear portion telescopic secondary, base Background Job platform 13.
Rear balance arm jack 23 1 ends of the present invention are fixed on the base 7, and an end is fixed on the rear balance arm 5, in the working depth scope after balance arm 5 can flush with back timber, again can the bottom 45 °.
One working platform 13 is arranged at bottom, closed gob-side entry retaining work space of the present invention, and this platform is connected with base 7 with bearing pin by two power bars 12 with base 7 rear portions.
The anti-spoil side plate 24 of the back timber secondary of hydraulic support A of the present invention fixes by connecting rod 19 and back timber side plate, the anti-spoil side plate 22 of the rear balance arm secondary of hydraulic support A fixes by connecting rod 19 and rear balance arm side plate, forms sealing surface with the anti-spoil side plate 18 of the base telescopic secondary of hydraulic support A.
The balance arm rear defence cash device 20 of hydraulic support A of the present invention and hydraulic support B links to each other with rear extensible canopy 6, can the leveling supporting roof, increase the trouble free service space, and can regain fully again, become 180 ° with rear extensible canopy.
The anti-spoil side plate 18 of the base telescopic secondary of hydraulic support A of the present invention and the anti-cash plate 17 of base rear portion telescopic secondary by jack 14 controls, can be regulated the waste rock board height.
The base telescopic secondary of hydraulic support A of the present invention prevents that spoil device, the anti-cash device of hydraulic support rear portion telescopic secondary all are to be connected with base Background Job platform 13 with bearing pin by two power bars 12.
Used plant and instrument is the known equipment of coal-mining technique those skilled in the art in the specific embodiment of the invention, can obtain by buying.
Claims (9)
1. a gob side entry retaining comprises the identical hydraulic support A of agent structure, hydraulic support B, hydraulic support C and Fencing protection device with reverse-four-link-bar mechanism support apparatus; Described agent structure comprises reverse-four-link-bar stabilizing mechanism, face guard, front stretching beam, front-axle beam, back timber, rear balance arm and rear extensible canopy and relevant oil cylinder; Described reverse-four-link-bar stabilizing mechanism comprises base, front rod, back link and cant beam; Described Fencing protection device comprises the anti-cash device of base rear portion telescopic secondary of balance arm rear defence cash device, hydraulic support A and hydraulic support B of base telescopic secondary anti-spoil side plate, hydraulic support A and the hydraulic support B of the anti-spoil side plate of the secondary of hydraulic support A, hydraulic support A.
2. gob side entry retaining according to claim 1 is characterized in that the anterior hinged front-axle beam of described back timber, the hinged rear balance arm in rear portion with reverse-four-link-bar mechanism support apparatus.
3. gob side entry retaining according to claim 1 is with reverse-four-link-bar mechanism support apparatus, it is characterized in that rear balance arm jack one end is fixed on the base, one end is fixed on the rear balance arm, in the working depth scope after balance arm can flush with back timber, again can the bottom 45 °.
4. the stabilizing mechanism of reverse-four-link-bar according to claim 1 mechanism is characterized in that front rod, back link and cant beam are arranged between the forward and backward column.
5. a dismountable working platform is arranged at bottom, described closed gob-side entry retaining work space according to claim 1, and this platform is connected with base with bearing pin by two power bars with the base rear portion.
6. described closed gob-side entry retaining work space according to claim 1 is characterized in that linking to each other the anti-spoil side plate of secondary of described support A, with the anti-spoil side plate formation of the base telescopic secondary of hydraulic support A enclosure space with rear balance arm side plate by linkage.
7. described closed gob-side entry retaining work space according to claim 1, the balance arm rear defence cash device that it is characterized in that described hydraulic support A and hydraulic support B, link to each other with rear extensible canopy by little four-bar linkage structure, can the leveling supporting roof, can regain fully again, become 180 ° with rear extensible canopy, when rear waste rock board is recovered to 90 °, can form enclosure space with the anti-cash device of base rear portion telescopic secondary.
8. described closed gob-side entry retaining work space according to claim 1 is characterized in that the anti-spoil side plate of base telescopic secondary and the anti-cash device of base rear portion telescopic secondary of described hydraulic support A, by jack control, can regulate gear cash height.
9. described closed gob-side entry retaining work space according to claim 1 is characterized in that the anti-spoil side plate of base telescopic secondary, hydraulic support A and the anti-cash device of hydraulic support B base rear portion telescopic secondary of hydraulic support A all is to be connected with base Background Job platform with bearing pin by two power bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403165.4A CN102926781B (en) | 2012-10-22 | 2012-10-22 | The anti-linkage support apparatus of a kind of gob side entry retaining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403165.4A CN102926781B (en) | 2012-10-22 | 2012-10-22 | The anti-linkage support apparatus of a kind of gob side entry retaining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926781A true CN102926781A (en) | 2013-02-13 |
| CN102926781B CN102926781B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210403165.4A Active CN102926781B (en) | 2012-10-22 | 2012-10-22 | The anti-linkage support apparatus of a kind of gob side entry retaining |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927255A (en) * | 2016-05-10 | 2016-09-07 | 中国矿业大学 | Gravel-filled gob-side entry retaining gangue blocking device |
| CN108374684A (en) * | 2018-05-10 | 2018-08-07 | 陕西陕煤黄陵矿业有限公司 | Fully-mechanized mining working faces end head abnormal shape support apparatus |
| US11008860B2 (en) | 2015-06-24 | 2021-05-18 | Manchao He | Equipment system for no-roadway no-coal-pillar retained roadway mining method |
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| CN102168571A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Basic bracket for filing support |
| CN102269004A (en) * | 2011-01-26 | 2011-12-07 | 天地科技股份有限公司 | Coal mine cut and fill mining face timbering system |
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2012
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Patent Citations (9)
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| US4094153A (en) * | 1976-10-15 | 1978-06-13 | Bochumer Eisenhutte Heintzmann Gmbh & Co. | Breast roof support system for longwall mining |
| CN2911186Y (en) * | 2006-06-30 | 2007-06-13 | 兖州煤业股份有限公司 | Conveying end support of integrated working surface |
| CN201125743Y (en) * | 2007-08-03 | 2008-10-01 | 四川华蓥山广能(集团)有限责任公司 | Sloped and high-sloped fully-mechanized mining hydraulic support side direction blocking apparatus |
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| CN102168571A (en) * | 2010-02-25 | 2011-08-31 | 郑州四维机电设备制造有限公司 | Basic bracket for filing support |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11008860B2 (en) | 2015-06-24 | 2021-05-18 | Manchao He | Equipment system for no-roadway no-coal-pillar retained roadway mining method |
| CN105927255A (en) * | 2016-05-10 | 2016-09-07 | 中国矿业大学 | Gravel-filled gob-side entry retaining gangue blocking device |
| CN108374684A (en) * | 2018-05-10 | 2018-08-07 | 陕西陕煤黄陵矿业有限公司 | Fully-mechanized mining working faces end head abnormal shape support apparatus |
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| Publication number | Publication date |
|---|---|
| CN102926781B (en) | 2016-03-02 |
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Owner name: SICHUAN COAL INDUSTRY GROUP CO., LTD. Effective date: 20150513 |
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Effective date of registration: 20150513 Address after: 100013 No. 5 Youth Road, Beijing, Chaoyang District Applicant after: Tiandi Science & Technology Co., Ltd. Applicant after: Sichuan Coal Industry Group Co., Ltd. Address before: 100013 No. 5 Youth Road, Beijing, Chaoyang District Applicant before: Tiandi Science & Technology Co., Ltd. |
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